Initial support for web service for newer clients (#5731)

Co-authored-by: Jittapan Pluemsumran <secret@rathena.org>
Co-authored-by: Lemongrass3110 <lemongrass@kstp.at>

.gitignore

@@ -1,6 +1,5 @@
-/autom4te.cache/output.0
-/autom4te.cache/requests
-/autom4te.cache/traces.0
+autom4te.cache/
+
 #Global
 .vscode
 .Apple*
@@ -42,6 +41,7 @@ Thumbs.db
 /map-server
 /mapcache
 /nbproject
+/web-server
 /yaml2sql
 /yamlupgrade
 
@@ -56,6 +56,10 @@ Thumbs.db
 # /3rdparty/yaml-cpp/
 /3rdparty/yaml-cpp/Makefile
 
+# /3rdparty/httplib/
+/3rdparty/httplib/Makefile
+/3rdparty/httplib/obj
+
 # /db/
 /db/import
 
@@ -92,6 +96,10 @@ Thumbs.db
 /src/map/obj_sql
 /src/map/pcre.hpp
 
+# /src/web
+/src/web/Makefile
+/src/web/obj
+
 # /src/tool/
 /src/tool/Makefile
 /src/tool/obj_all
@@ -125,6 +133,7 @@ Thumbs.db
 /mapserv.bat
 /runserver.bat
 /serv.bat
+/webserv.bat
 /yaml2sql.bat
 /yamlupgrade.bat
 

3rdparty/CMakeLists.txt

@@ -47,6 +47,7 @@ macro( CONFIGURE_WITH_LOCAL_OR_SYSTEM name )
 endmacro( CONFIGURE_WITH_LOCAL_OR_SYSTEM )
 
 
+add_subdirectory( httplib )
 add_subdirectory( libconfig )
 add_subdirectory( mysql )
 add_subdirectory( pcre )

3rdparty/README.txt

@@ -1,6 +1,7 @@
 This folder contains everything related to 3rdparty code or tools.
 
 cmake - scripts for the cmake build system (http://www.cmake.org)
+httplib - library for http web service (https://github.com/yhirose/cpp-httplib/commit/a9cf09795170a72372cbeb3feef3851b859c0e33)
 libconfig - library for processing structured configuration files (http://www.hyperrealm.com/libconfig/)
 mysql - library for MySQL Community Server (http://www.mysql.com)
 pcre - library for Perl Compatible Regular Expressions (http://www.pcre.org)

3rdparty/httplib/CMakeLists.txt

@@ -0,0 +1,38 @@
+cmake_minimum_required(VERSION 2.8)
+
+if ( NOT ENABLE_WEB_SERVER )
+    return()
+endif( NOT ENABLE_WEB_SERVER )
+
+SET (this_target httplib)
+PROJECT(${this_target})
+
+find_path ( HTTPLIB_INCLUDE_DIRS "httplib.h"
+    PATHS "${CMAKE_CURRENT_SOURCE_DIR}"
+    NO_DEFAULT_PATH )
+
+find_path ( HTTPLIB_SOURCE_DIR "httplib.cc"
+    PATHS "${CMAKE_CURRENT_SOURCE_DIR}"
+    NO_DEFAULT_PATH )
+
+mark_as_advanced( HTTPLIB_INCLUDE_DIRS )
+mark_as_advanced( HTTPLIB_SOURCE_DIR )
+
+set ( HTTPLIB_HEADERS
+    "${HTTPLIB_INCLUDE_DIRS}/httplib.h"
+    CACHE INTERNAL "httplib headers" )
+
+set ( HTTPLIB_SOURCES
+    "${HTTPLIB_SOURCE_DIR}/httplib.cc"
+    CACHE INTERNAL "httplib sources" )
+
+set ( HTTPLIB_DEFINITIONS
+    "-std=c++11"
+    CACHE INTERNAL "http definitions" )
+include_directories( ${HTTPLIB_INCLUDE_DIRS} ${HTTPLIB_SOURCE_DIR} )
+
+ADD_LIBRARY( ${this_target} STATIC ${HTTPLIB_SOURCES} )
+
+if (NOT WIN32)
+    target_compile_definitions(${this_target} PUBLIC "CPPHTTPLIB_SEND_FLAGS=MSG_NOSIGNAL")
+endif()

3rdparty/httplib/Makefile.in

@@ -0,0 +1,43 @@
+
+HTTPLIB_OBJ =  $(shell find * -type f -name "*.cc" | sed -e "s/\.cc/\.o/g")
+HTTPLIB_DIR_OBJ = $(HTTPLIB_OBJ:%=obj/%)
+HTTPLIB_H =  $(shell find * -type f -name "*.h")
+HTTPLIB_AR = obj/httplib.a
+
+CXXFLAG =-std=c++11
+
+HTTPLIB_DEPENDS=httplib
+
+@SET_MAKE@
+
+#####################################################################
+.PHONY : all clean help httplib
+
+all: $(HTTPLIB_DEPENDS)
+
+clean:
+	@echo "	CLEAN	httplib"
+	@rm -rf obj *.o
+
+help:
+	@echo "possible targets are 'all' 'clean' 'help'"
+	@echo "'httplib' - build $(HTTPLIB_AR)
+	@echo "'all'       - builds $(HTTPLIB_DIR_OBJ)"
+	@echo "'clean'     - deletes $(HTTPLIB_DIR_OBJ)"
+	@echo "'help'      - outputs this message"
+
+#####################################################################
+
+obj:
+	@echo "	MKDIR	obj"
+	@mkdir -p obj
+	
+obj/%.o: %.cc $(HTTPLIB_H)
+	@echo "	CXX	$<"
+	@@CXX@ $(CXXFLAG) @CFLAGS_AR@ @CPPFLAGS@ -DCPPHTTPLIB_SEND_FLAGS=MSG_NOSIGNAL -g -c $(OUTPUT_OPTION) $<
+
+httplib: obj $(HTTPLIB_DIR_OBJ) $(HTTPLIB_AR)
+
+$(HTTPLIB_AR): $(HTTPLIB_DIR_OBJ)
+	@echo "	AR	$@"
+	@@AR@ rcs obj/httplib.a $(HTTPLIB_DIR_OBJ)

3rdparty/httplib/httplib.cc

@@ -0,0 +1,6482 @@
+#include "httplib.h"
+namespace httplib {
+
+/*
+ * Implementation that will be part of the .cc file if split into .h + .cc.
+ */
+
+namespace detail {
+
+bool is_hex(char c, int &v) {
+  if (0x20 <= c && isdigit(c)) {
+    v = c - '0';
+    return true;
+  } else if ('A' <= c && c <= 'F') {
+    v = c - 'A' + 10;
+    return true;
+  } else if ('a' <= c && c <= 'f') {
+    v = c - 'a' + 10;
+    return true;
+  }
+  return false;
+}
+
+bool from_hex_to_i(const std::string &s, size_t i, size_t cnt,
+                          int &val) {
+  if (i >= s.size()) { return false; }
+
+  val = 0;
+  for (; cnt; i++, cnt--) {
+    if (!s[i]) { return false; }
+    int v = 0;
+    if (is_hex(s[i], v)) {
+      val = val * 16 + v;
+    } else {
+      return false;
+    }
+  }
+  return true;
+}
+
+std::string from_i_to_hex(size_t n) {
+  const char *charset = "0123456789abcdef";
+  std::string ret;
+  do {
+    ret = charset[n & 15] + ret;
+    n >>= 4;
+  } while (n > 0);
+  return ret;
+}
+
+size_t to_utf8(int code, char *buff) {
+  if (code < 0x0080) {
+    buff[0] = (code & 0x7F);
+    return 1;
+  } else if (code < 0x0800) {
+    buff[0] = static_cast<char>(0xC0 | ((code >> 6) & 0x1F));
+    buff[1] = static_cast<char>(0x80 | (code & 0x3F));
+    return 2;
+  } else if (code < 0xD800) {
+    buff[0] = static_cast<char>(0xE0 | ((code >> 12) & 0xF));
+    buff[1] = static_cast<char>(0x80 | ((code >> 6) & 0x3F));
+    buff[2] = static_cast<char>(0x80 | (code & 0x3F));
+    return 3;
+  } else if (code < 0xE000) { // D800 - DFFF is invalid...
+    return 0;
+  } else if (code < 0x10000) {
+    buff[0] = static_cast<char>(0xE0 | ((code >> 12) & 0xF));
+    buff[1] = static_cast<char>(0x80 | ((code >> 6) & 0x3F));
+    buff[2] = static_cast<char>(0x80 | (code & 0x3F));
+    return 3;
+  } else if (code < 0x110000) {
+    buff[0] = static_cast<char>(0xF0 | ((code >> 18) & 0x7));
+    buff[1] = static_cast<char>(0x80 | ((code >> 12) & 0x3F));
+    buff[2] = static_cast<char>(0x80 | ((code >> 6) & 0x3F));
+    buff[3] = static_cast<char>(0x80 | (code & 0x3F));
+    return 4;
+  }
+
+  // NOTREACHED
+  return 0;
+}
+
+// NOTE: This code came up with the following stackoverflow post:
+// https://stackoverflow.com/questions/180947/base64-decode-snippet-in-c
+std::string base64_encode(const std::string &in) {
+  static const auto lookup =
+      "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+
+  std::string out;
+  out.reserve(in.size());
+
+  int val = 0;
+  int valb = -6;
+
+  for (auto c : in) {
+    val = (val << 8) + static_cast<uint8_t>(c);
+    valb += 8;
+    while (valb >= 0) {
+      out.push_back(lookup[(val >> valb) & 0x3F]);
+      valb -= 6;
+    }
+  }
+
+  if (valb > -6) { out.push_back(lookup[((val << 8) >> (valb + 8)) & 0x3F]); }
+
+  while (out.size() % 4) {
+    out.push_back('=');
+  }
+
+  return out;
+}
+
+bool is_file(const std::string &path) {
+#ifdef _WIN32
+  return _access_s(path.c_str(), 0) == 0;
+#else
+  struct stat st;
+  return stat(path.c_str(), &st) >= 0 && S_ISREG(st.st_mode);
+#endif
+}
+
+bool is_dir(const std::string &path) {
+  struct stat st;
+  return stat(path.c_str(), &st) >= 0 && S_ISDIR(st.st_mode);
+}
+
+bool is_valid_path(const std::string &path) {
+  size_t level = 0;
+  size_t i = 0;
+
+  // Skip slash
+  while (i < path.size() && path[i] == '/') {
+    i++;
+  }
+
+  while (i < path.size()) {
+    // Read component
+    auto beg = i;
+    while (i < path.size() && path[i] != '/') {
+      i++;
+    }
+
+    auto len = i - beg;
+    assert(len > 0);
+
+    if (!path.compare(beg, len, ".")) {
+      ;
+    } else if (!path.compare(beg, len, "..")) {
+      if (level == 0) { return false; }
+      level--;
+    } else {
+      level++;
+    }
+
+    // Skip slash
+    while (i < path.size() && path[i] == '/') {
+      i++;
+    }
+  }
+
+  return true;
+}
+
+std::string encode_query_param(const std::string &value) {
+  std::ostringstream escaped;
+  escaped.fill('0');
+  escaped << std::hex;
+
+  for (auto c : value) {
+    if (std::isalnum(static_cast<uint8_t>(c)) || c == '-' || c == '_' ||
+        c == '.' || c == '!' || c == '~' || c == '*' || c == '\'' || c == '(' ||
+        c == ')') {
+      escaped << c;
+    } else {
+      escaped << std::uppercase;
+      escaped << '%' << std::setw(2)
+              << static_cast<int>(static_cast<unsigned char>(c));
+      escaped << std::nouppercase;
+    }
+  }
+
+  return escaped.str();
+}
+
+std::string encode_url(const std::string &s) {
+  std::string result;
+  result.reserve(s.size());
+
+  for (size_t i = 0; s[i]; i++) {
+    switch (s[i]) {
+    case ' ': result += "%20"; break;
+    case '+': result += "%2B"; break;
+    case '\r': result += "%0D"; break;
+    case '\n': result += "%0A"; break;
+    case '\'': result += "%27"; break;
+    case ',': result += "%2C"; break;
+    // case ':': result += "%3A"; break; // ok? probably...
+    case ';': result += "%3B"; break;
+    default:
+      auto c = static_cast<uint8_t>(s[i]);
+      if (c >= 0x80) {
+        result += '%';
+        char hex[4];
+        auto len = snprintf(hex, sizeof(hex) - 1, "%02X", c);
+        assert(len == 2);
+        result.append(hex, static_cast<size_t>(len));
+      } else {
+        result += s[i];
+      }
+      break;
+    }
+  }
+
+  return result;
+}
+
+std::string decode_url(const std::string &s,
+                              bool convert_plus_to_space) {
+  std::string result;
+
+  for (size_t i = 0; i < s.size(); i++) {
+    if (s[i] == '%' && i + 1 < s.size()) {
+      if (s[i + 1] == 'u') {
+        int val = 0;
+        if (from_hex_to_i(s, i + 2, 4, val)) {
+          // 4 digits Unicode codes
+          char buff[4];
+          size_t len = to_utf8(val, buff);
+          if (len > 0) { result.append(buff, len); }
+          i += 5; // 'u0000'
+        } else {
+          result += s[i];
+        }
+      } else {
+        int val = 0;
+        if (from_hex_to_i(s, i + 1, 2, val)) {
+          // 2 digits hex codes
+          result += static_cast<char>(val);
+          i += 2; // '00'
+        } else {
+          result += s[i];
+        }
+      }
+    } else if (convert_plus_to_space && s[i] == '+') {
+      result += ' ';
+    } else {
+      result += s[i];
+    }
+  }
+
+  return result;
+}
+
+void read_file(const std::string &path, std::string &out) {
+  std::ifstream fs(path, std::ios_base::binary);
+  fs.seekg(0, std::ios_base::end);
+  auto size = fs.tellg();
+  fs.seekg(0);
+  out.resize(static_cast<size_t>(size));
+  fs.read(&out[0], static_cast<std::streamsize>(size));
+}
+
+std::string file_extension(const std::string &path) {
+  std::smatch m;
+  static auto re = std::regex("\\.([a-zA-Z0-9]+)$");
+  if (std::regex_search(path, m, re)) { return m[1].str(); }
+  return std::string();
+}
+
+bool is_space_or_tab(char c) { return c == ' ' || c == '\t'; }
+
+std::pair<size_t, size_t> trim(const char *b, const char *e, size_t left,
+                                      size_t right) {
+  while (b + left < e && is_space_or_tab(b[left])) {
+    left++;
+  }
+  while (right > 0 && is_space_or_tab(b[right - 1])) {
+    right--;
+  }
+  return std::make_pair(left, right);
+}
+
+std::string trim_copy(const std::string &s) {
+  auto r = trim(s.data(), s.data() + s.size(), 0, s.size());
+  return s.substr(r.first, r.second - r.first);
+}
+
+void split(const char *b, const char *e, char d,
+                  std::function<void(const char *, const char *)> fn) {
+  size_t i = 0;
+  size_t beg = 0;
+
+  while (e ? (b + i < e) : (b[i] != '\0')) {
+    if (b[i] == d) {
+      auto r = trim(b, e, beg, i);
+      if (r.first < r.second) { fn(&b[r.first], &b[r.second]); }
+      beg = i + 1;
+    }
+    i++;
+  }
+
+  if (i) {
+    auto r = trim(b, e, beg, i);
+    if (r.first < r.second) { fn(&b[r.first], &b[r.second]); }
+  }
+}
+
+stream_line_reader::stream_line_reader(Stream &strm, char *fixed_buffer,
+                                              size_t fixed_buffer_size)
+    : strm_(strm), fixed_buffer_(fixed_buffer),
+      fixed_buffer_size_(fixed_buffer_size) {}
+
+const char *stream_line_reader::ptr() const {
+  if (glowable_buffer_.empty()) {
+    return fixed_buffer_;
+  } else {
+    return glowable_buffer_.data();
+  }
+}
+
+size_t stream_line_reader::size() const {
+  if (glowable_buffer_.empty()) {
+    return fixed_buffer_used_size_;
+  } else {
+    return glowable_buffer_.size();
+  }
+}
+
+bool stream_line_reader::end_with_crlf() const {
+  auto end = ptr() + size();
+  return size() >= 2 && end[-2] == '\r' && end[-1] == '\n';
+}
+
+bool stream_line_reader::getline() {
+  fixed_buffer_used_size_ = 0;
+  glowable_buffer_.clear();
+
+  for (size_t i = 0;; i++) {
+    char byte;
+    auto n = strm_.read(&byte, 1);
+
+    if (n < 0) {
+      return false;
+    } else if (n == 0) {
+      if (i == 0) {
+        return false;
+      } else {
+        break;
+      }
+    }
+
+    append(byte);
+
+    if (byte == '\n') { break; }
+  }
+
+  return true;
+}
+
+void stream_line_reader::append(char c) {
+  if (fixed_buffer_used_size_ < fixed_buffer_size_ - 1) {
+    fixed_buffer_[fixed_buffer_used_size_++] = c;
+    fixed_buffer_[fixed_buffer_used_size_] = '\0';
+  } else {
+    if (glowable_buffer_.empty()) {
+      assert(fixed_buffer_[fixed_buffer_used_size_] == '\0');
+      glowable_buffer_.assign(fixed_buffer_, fixed_buffer_used_size_);
+    }
+    glowable_buffer_ += c;
+  }
+}
+
+int close_socket(socket_t sock) {
+#ifdef _WIN32
+  return closesocket(sock);
+#else
+  return close(sock);
+#endif
+}
+
+template <typename T> ssize_t handle_EINTR(T fn) {
+  ssize_t res = false;
+  while (true) {
+    res = fn();
+    if (res < 0 && errno == EINTR) { continue; }
+    break;
+  }
+  return res;
+}
+
+ssize_t read_socket(socket_t sock, void *ptr, size_t size, int flags) {
+  return handle_EINTR([&]() {
+    return recv(sock,
+#ifdef _WIN32
+                static_cast<char *>(ptr), static_cast<int>(size),
+#else
+                ptr, size,
+#endif
+                flags);
+  });
+}
+
+ssize_t send_socket(socket_t sock, const void *ptr, size_t size,
+                           int flags) {
+  return handle_EINTR([&]() {
+    return send(sock,
+#ifdef _WIN32
+                static_cast<const char *>(ptr), static_cast<int>(size),
+#else
+                ptr, size,
+#endif
+                flags);
+  });
+}
+
+ssize_t select_read(socket_t sock, time_t sec, time_t usec) {
+#ifdef CPPHTTPLIB_USE_POLL
+  struct pollfd pfd_read;
+  pfd_read.fd = sock;
+  pfd_read.events = POLLIN;
+
+  auto timeout = static_cast<int>(sec * 1000 + usec / 1000);
+
+  return handle_EINTR([&]() { return poll(&pfd_read, 1, timeout); });
+#else
+#ifndef _WIN32
+  if (sock >= FD_SETSIZE) { return 1; }
+#endif
+
+  fd_set fds;
+  FD_ZERO(&fds);
+  FD_SET(sock, &fds);
+
+  timeval tv;
+  tv.tv_sec = static_cast<long>(sec);
+  tv.tv_usec = static_cast<decltype(tv.tv_usec)>(usec);
+
+  return handle_EINTR([&]() {
+    return select(static_cast<int>(sock + 1), &fds, nullptr, nullptr, &tv);
+  });
+#endif
+}
+
+ssize_t select_write(socket_t sock, time_t sec, time_t usec) {
+#ifdef CPPHTTPLIB_USE_POLL
+  struct pollfd pfd_read;
+  pfd_read.fd = sock;
+  pfd_read.events = POLLOUT;
+
+  auto timeout = static_cast<int>(sec * 1000 + usec / 1000);
+
+  return handle_EINTR([&]() { return poll(&pfd_read, 1, timeout); });
+#else
+#ifndef _WIN32
+  if (sock >= FD_SETSIZE) { return 1; }
+#endif
+
+  fd_set fds;
+  FD_ZERO(&fds);
+  FD_SET(sock, &fds);
+
+  timeval tv;
+  tv.tv_sec = static_cast<long>(sec);
+  tv.tv_usec = static_cast<decltype(tv.tv_usec)>(usec);
+
+  return handle_EINTR([&]() {
+    return select(static_cast<int>(sock + 1), nullptr, &fds, nullptr, &tv);
+  });
+#endif
+}
+
+Error wait_until_socket_is_ready(socket_t sock, time_t sec,
+                                        time_t usec) {
+#ifdef CPPHTTPLIB_USE_POLL
+  struct pollfd pfd_read;
+  pfd_read.fd = sock;
+  pfd_read.events = POLLIN | POLLOUT;
+
+  auto timeout = static_cast<int>(sec * 1000 + usec / 1000);
+
+  auto poll_res = handle_EINTR([&]() { return poll(&pfd_read, 1, timeout); });
+
+  if (poll_res == 0) { return Error::ConnectionTimeout; }
+
+  if (poll_res > 0 && pfd_read.revents & (POLLIN | POLLOUT)) {
+    int error = 0;
+    socklen_t len = sizeof(error);
+    auto res = getsockopt(sock, SOL_SOCKET, SO_ERROR,
+                          reinterpret_cast<char *>(&error), &len);
+    auto successful = res >= 0 && !error;
+    return successful ? Error::Success : Error::Connection;
+  }
+
+  return Error::Connection;
+#else
+#ifndef _WIN32
+  if (sock >= FD_SETSIZE) { return Error::Connection; }
+#endif
+
+  fd_set fdsr;
+  FD_ZERO(&fdsr);
+  FD_SET(sock, &fdsr);
+
+  auto fdsw = fdsr;
+  auto fdse = fdsr;
+
+  timeval tv;
+  tv.tv_sec = static_cast<long>(sec);
+  tv.tv_usec = static_cast<decltype(tv.tv_usec)>(usec);
+
+  auto ret = handle_EINTR([&]() {
+    return select(static_cast<int>(sock + 1), &fdsr, &fdsw, &fdse, &tv);
+  });
+
+  if (ret == 0) { return Error::ConnectionTimeout; }
+
+  if (ret > 0 && (FD_ISSET(sock, &fdsr) || FD_ISSET(sock, &fdsw))) {
+    int error = 0;
+    socklen_t len = sizeof(error);
+    auto res = getsockopt(sock, SOL_SOCKET, SO_ERROR,
+                          reinterpret_cast<char *>(&error), &len);
+    auto successful = res >= 0 && !error;
+    return successful ? Error::Success : Error::Connection;
+  }
+  return Error::Connection;
+#endif
+}
+
+bool is_socket_alive(socket_t sock) {
+  const auto val = detail::select_read(sock, 0, 0);
+  if (val == 0) {
+    return true;
+  } else if (val < 0 && errno == EBADF) {
+    return false;
+  }
+  char buf[1];
+  return detail::read_socket(sock, &buf[0], sizeof(buf), MSG_PEEK) > 0;
+}
+
+class SocketStream : public Stream {
+public:
+  SocketStream(socket_t sock, time_t read_timeout_sec, time_t read_timeout_usec,
+               time_t write_timeout_sec, time_t write_timeout_usec);
+  ~SocketStream() override;
+
+  bool is_readable() const override;
+  bool is_writable() const override;
+  ssize_t read(char *ptr, size_t size) override;
+  ssize_t write(const char *ptr, size_t size) override;
+  void get_remote_ip_and_port(std::string &ip, int &port) const override;
+  socket_t socket() const override;
+
+private:
+  socket_t sock_;
+  time_t read_timeout_sec_;
+  time_t read_timeout_usec_;
+  time_t write_timeout_sec_;
+  time_t write_timeout_usec_;
+
+  std::vector<char> read_buff_;
+  size_t read_buff_off_ = 0;
+  size_t read_buff_content_size_ = 0;
+
+  static const size_t read_buff_size_ = 1024 * 4;
+};
+
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+class SSLSocketStream : public Stream {
+public:
+  SSLSocketStream(socket_t sock, SSL *ssl, time_t read_timeout_sec,
+                  time_t read_timeout_usec, time_t write_timeout_sec,
+                  time_t write_timeout_usec);
+  ~SSLSocketStream() override;
+
+  bool is_readable() const override;
+  bool is_writable() const override;
+  ssize_t read(char *ptr, size_t size) override;
+  ssize_t write(const char *ptr, size_t size) override;
+  void get_remote_ip_and_port(std::string &ip, int &port) const override;
+  socket_t socket() const override;
+
+private:
+  socket_t sock_;
+  SSL *ssl_;
+  time_t read_timeout_sec_;
+  time_t read_timeout_usec_;
+  time_t write_timeout_sec_;
+  time_t write_timeout_usec_;
+};
+#endif
+
+bool keep_alive(socket_t sock, time_t keep_alive_timeout_sec) {
+  using namespace std::chrono;
+  auto start = steady_clock::now();
+  while (true) {
+    auto val = select_read(sock, 0, 10000);
+    if (val < 0) {
+      return false;
+    } else if (val == 0) {
+      auto current = steady_clock::now();
+      auto duration = duration_cast<milliseconds>(current - start);
+      auto timeout = keep_alive_timeout_sec * 1000;
+      if (duration.count() > timeout) { return false; }
+      std::this_thread::sleep_for(std::chrono::milliseconds(1));
+    } else {
+      return true;
+    }
+  }
+}
+
+template <typename T>
+bool
+process_server_socket_core(const std::atomic<socket_t> &svr_sock, socket_t sock,
+                           size_t keep_alive_max_count,
+                           time_t keep_alive_timeout_sec, T callback) {
+  assert(keep_alive_max_count > 0);
+  auto ret = false;
+  auto count = keep_alive_max_count;
+  while (svr_sock != INVALID_SOCKET && count > 0 &&
+         keep_alive(sock, keep_alive_timeout_sec)) {
+    auto close_connection = count == 1;
+    auto connection_closed = false;
+    ret = callback(close_connection, connection_closed);
+    if (!ret || connection_closed) { break; }
+    count--;
+  }
+  return ret;
+}
+
+template <typename T>
+bool
+process_server_socket(const std::atomic<socket_t> &svr_sock, socket_t sock,
+                      size_t keep_alive_max_count,
+                      time_t keep_alive_timeout_sec, time_t read_timeout_sec,
+                      time_t read_timeout_usec, time_t write_timeout_sec,
+                      time_t write_timeout_usec, T callback) {
+  return process_server_socket_core(
+      svr_sock, sock, keep_alive_max_count, keep_alive_timeout_sec,
+      [&](bool close_connection, bool &connection_closed) {
+        SocketStream strm(sock, read_timeout_sec, read_timeout_usec,
+                          write_timeout_sec, write_timeout_usec);
+        return callback(strm, close_connection, connection_closed);
+      });
+}
+
+bool process_client_socket(socket_t sock, time_t read_timeout_sec,
+                                  time_t read_timeout_usec,
+                                  time_t write_timeout_sec,
+                                  time_t write_timeout_usec,
+                                  std::function<bool(Stream &)> callback) {
+  SocketStream strm(sock, read_timeout_sec, read_timeout_usec,
+                    write_timeout_sec, write_timeout_usec);
+  return callback(strm);
+}
+
+int shutdown_socket(socket_t sock) {
+#ifdef _WIN32
+  return shutdown(sock, SD_BOTH);
+#else
+  return shutdown(sock, SHUT_RDWR);
+#endif
+}
+
+template <typename BindOrConnect>
+socket_t create_socket(const std::string &host, const std::string &ip, int port,
+                       int address_family, int socket_flags, bool tcp_nodelay,
+                       SocketOptions socket_options,
+                       BindOrConnect bind_or_connect) {
+  // Get address info
+  const char *node = nullptr;
+  struct addrinfo hints;
+  struct addrinfo *result;
+
+  memset(&hints, 0, sizeof(struct addrinfo));
+  hints.ai_socktype = SOCK_STREAM;
+  hints.ai_protocol = 0;
+
+  if (!ip.empty()) {
+    node = ip.c_str();
+    // Ask getaddrinfo to convert IP in c-string to address
+    hints.ai_family = AF_UNSPEC;
+    hints.ai_flags = AI_NUMERICHOST;
+  } else {
+    if (!host.empty()) { node = host.c_str(); }
+    hints.ai_family = address_family;
+    hints.ai_flags = socket_flags;
+  }
+
+#ifndef _WIN32
+  if (hints.ai_family == AF_UNIX) {
+    const auto addrlen = host.length();
+    if (addrlen > sizeof(sockaddr_un::sun_path)) return INVALID_SOCKET;
+
+    auto sock = socket(hints.ai_family, hints.ai_socktype, hints.ai_protocol);
+    if (sock != INVALID_SOCKET) {
+      sockaddr_un addr;
+      addr.sun_family = AF_UNIX;
+      std::copy(host.begin(), host.end(), addr.sun_path);
+
+      hints.ai_addr = reinterpret_cast<sockaddr *>(&addr);
+      hints.ai_addrlen = static_cast<socklen_t>(
+          sizeof(addr) - sizeof(addr.sun_path) + addrlen);
+
+      if (!bind_or_connect(sock, hints)) {
+        close_socket(sock);
+        sock = INVALID_SOCKET;
+      }
+    }
+    return sock;
+  }
+#endif
+
+  auto service = std::to_string(port);
+
+  if (getaddrinfo(node, service.c_str(), &hints, &result)) {
+#if defined __linux__ && !defined __ANDROID__
+    res_init();
+#endif
+    return INVALID_SOCKET;
+  }
+
+  for (auto rp = result; rp; rp = rp->ai_next) {
+    // Create a socket
+#ifdef _WIN32
+    auto sock =
+        WSASocketW(rp->ai_family, rp->ai_socktype, rp->ai_protocol, nullptr, 0,
+                   WSA_FLAG_NO_HANDLE_INHERIT | WSA_FLAG_OVERLAPPED);
+    /**
+     * Since the WSA_FLAG_NO_HANDLE_INHERIT is only supported on Windows 7 SP1
+     * and above the socket creation fails on older Windows Systems.
+     *
+     * Let's try to create a socket the old way in this case.
+     *
+     * Reference:
+     * https://docs.microsoft.com/en-us/windows/win32/api/winsock2/nf-winsock2-wsasocketa
+     *
+     * WSA_FLAG_NO_HANDLE_INHERIT:
+     * This flag is supported on Windows 7 with SP1, Windows Server 2008 R2 with
+     * SP1, and later
+     *
+     */
+    if (sock == INVALID_SOCKET) {
+      sock = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol);
+    }
+#else
+    auto sock = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol);
+#endif
+    if (sock == INVALID_SOCKET) { continue; }
+
+#ifndef _WIN32
+    if (fcntl(sock, F_SETFD, FD_CLOEXEC) == -1) { continue; }
+#endif
+
+    if (tcp_nodelay) {
+      int yes = 1;
+      setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, reinterpret_cast<char *>(&yes),
+                 sizeof(yes));
+    }
+
+    if (socket_options) { socket_options(sock); }
+
+    if (rp->ai_family == AF_INET6) {
+      int no = 0;
+      setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY, reinterpret_cast<char *>(&no),
+                 sizeof(no));
+    }
+
+    // bind or connect
+    if (bind_or_connect(sock, *rp)) {
+      freeaddrinfo(result);
+      return sock;
+    }
+
+    close_socket(sock);
+  }
+
+  freeaddrinfo(result);
+  return INVALID_SOCKET;
+}
+
+void set_nonblocking(socket_t sock, bool nonblocking) {
+#ifdef _WIN32
+  auto flags = nonblocking ? 1UL : 0UL;
+  ioctlsocket(sock, FIONBIO, &flags);
+#else
+  auto flags = fcntl(sock, F_GETFL, 0);
+  fcntl(sock, F_SETFL,
+        nonblocking ? (flags | O_NONBLOCK) : (flags & (~O_NONBLOCK)));
+#endif
+}
+
+bool is_connection_error() {
+#ifdef _WIN32
+  return WSAGetLastError() != WSAEWOULDBLOCK;
+#else
+  return errno != EINPROGRESS;
+#endif
+}
+
+bool bind_ip_address(socket_t sock, const std::string &host) {
+  struct addrinfo hints;
+  struct addrinfo *result;
+
+  memset(&hints, 0, sizeof(struct addrinfo));
+  hints.ai_family = AF_UNSPEC;
+  hints.ai_socktype = SOCK_STREAM;
+  hints.ai_protocol = 0;
+
+  if (getaddrinfo(host.c_str(), "0", &hints, &result)) { return false; }
+
+  auto ret = false;
+  for (auto rp = result; rp; rp = rp->ai_next) {
+    const auto &ai = *rp;
+    if (!::bind(sock, ai.ai_addr, static_cast<socklen_t>(ai.ai_addrlen))) {
+      ret = true;
+      break;
+    }
+  }
+
+  freeaddrinfo(result);
+  return ret;
+}
+
+#if !defined _WIN32 && !defined ANDROID
+#define USE_IF2IP
+#endif
+
+#ifdef USE_IF2IP
+std::string if2ip(int address_family, const std::string &ifn) {
+  struct ifaddrs *ifap;
+  getifaddrs(&ifap);
+  std::string addr_candidate;
+  for (auto ifa = ifap; ifa; ifa = ifa->ifa_next) {
+    if (ifa->ifa_addr && ifn == ifa->ifa_name &&
+        (AF_UNSPEC == address_family ||
+         ifa->ifa_addr->sa_family == address_family)) {
+      if (ifa->ifa_addr->sa_family == AF_INET) {
+        auto sa = reinterpret_cast<struct sockaddr_in *>(ifa->ifa_addr);
+        char buf[INET_ADDRSTRLEN];
+        if (inet_ntop(AF_INET, &sa->sin_addr, buf, INET_ADDRSTRLEN)) {
+          freeifaddrs(ifap);
+          return std::string(buf, INET_ADDRSTRLEN);
+        }
+      } else if (ifa->ifa_addr->sa_family == AF_INET6) {
+        auto sa = reinterpret_cast<struct sockaddr_in6 *>(ifa->ifa_addr);
+        if (!IN6_IS_ADDR_LINKLOCAL(&sa->sin6_addr)) {
+          char buf[INET6_ADDRSTRLEN] = {};
+          if (inet_ntop(AF_INET6, &sa->sin6_addr, buf, INET6_ADDRSTRLEN)) {
+            // equivalent to mac's IN6_IS_ADDR_UNIQUE_LOCAL
+            auto s6_addr_head = sa->sin6_addr.s6_addr[0];
+            if (s6_addr_head == 0xfc || s6_addr_head == 0xfd) {
+              addr_candidate = std::string(buf, INET6_ADDRSTRLEN);
+            } else {
+              freeifaddrs(ifap);
+              return std::string(buf, INET6_ADDRSTRLEN);
+            }
+          }
+        }
+      }
+    }
+  }
+  freeifaddrs(ifap);
+  return addr_candidate;
+}
+#endif
+
+socket_t create_client_socket(
+    const std::string &host, const std::string &ip, int port,
+    int address_family, bool tcp_nodelay, SocketOptions socket_options,
+    time_t connection_timeout_sec, time_t connection_timeout_usec,
+    time_t read_timeout_sec, time_t read_timeout_usec, time_t write_timeout_sec,
+    time_t write_timeout_usec, const std::string &intf, Error &error) {
+  auto sock = create_socket(
+      host, ip, port, address_family, 0, tcp_nodelay, std::move(socket_options),
+      [&](socket_t sock2, struct addrinfo &ai) -> bool {
+        if (!intf.empty()) {
+#ifdef USE_IF2IP
+          auto ip_from_if = if2ip(address_family, intf);
+          if (ip_from_if.empty()) { ip_from_if = intf; }
+          if (!bind_ip_address(sock2, ip_from_if.c_str())) {
+            error = Error::BindIPAddress;
+            return false;
+          }
+#endif
+        }
+
+        set_nonblocking(sock2, true);
+
+        auto ret =
+            ::connect(sock2, ai.ai_addr, static_cast<socklen_t>(ai.ai_addrlen));
+
+        if (ret < 0) {
+          if (is_connection_error()) {
+            error = Error::Connection;
+            return false;
+          }
+          error = wait_until_socket_is_ready(sock2, connection_timeout_sec,
+                                             connection_timeout_usec);
+          if (error != Error::Success) { return false; }
+        }
+
+        set_nonblocking(sock2, false);
+
+        {
+#ifdef _WIN32
+          auto timeout = static_cast<uint32_t>(read_timeout_sec * 1000 +
+                                               read_timeout_usec / 1000);
+          setsockopt(sock2, SOL_SOCKET, SO_RCVTIMEO, (char *)&timeout,
+                     sizeof(timeout));
+#else
+          timeval tv;
+          tv.tv_sec = static_cast<long>(read_timeout_sec);
+          tv.tv_usec = static_cast<decltype(tv.tv_usec)>(read_timeout_usec);
+          setsockopt(sock2, SOL_SOCKET, SO_RCVTIMEO, (char *)&tv, sizeof(tv));
+#endif
+        }
+        {
+
+#ifdef _WIN32
+          auto timeout = static_cast<uint32_t>(write_timeout_sec * 1000 +
+                                               write_timeout_usec / 1000);
+          setsockopt(sock2, SOL_SOCKET, SO_SNDTIMEO, (char *)&timeout,
+                     sizeof(timeout));
+#else
+          timeval tv;
+          tv.tv_sec = static_cast<long>(write_timeout_sec);
+          tv.tv_usec = static_cast<decltype(tv.tv_usec)>(write_timeout_usec);
+          setsockopt(sock2, SOL_SOCKET, SO_SNDTIMEO, (char *)&tv, sizeof(tv));
+#endif
+        }
+
+        error = Error::Success;
+        return true;
+      });
+
+  if (sock != INVALID_SOCKET) {
+    error = Error::Success;
+  } else {
+    if (error == Error::Success) { error = Error::Connection; }
+  }
+
+  return sock;
+}
+
+bool get_remote_ip_and_port(const struct sockaddr_storage &addr,
+                                   socklen_t addr_len, std::string &ip,
+                                   int &port) {
+  if (addr.ss_family == AF_INET) {
+    port = ntohs(reinterpret_cast<const struct sockaddr_in *>(&addr)->sin_port);
+  } else if (addr.ss_family == AF_INET6) {
+    port =
+        ntohs(reinterpret_cast<const struct sockaddr_in6 *>(&addr)->sin6_port);
+  } else {
+    return false;
+  }
+
+  std::array<char, NI_MAXHOST> ipstr{};
+  if (getnameinfo(reinterpret_cast<const struct sockaddr *>(&addr), addr_len,
+                  ipstr.data(), static_cast<socklen_t>(ipstr.size()), nullptr,
+                  0, NI_NUMERICHOST)) {
+    return false;
+  }
+
+  ip = ipstr.data();
+  return true;
+}
+
+void get_remote_ip_and_port(socket_t sock, std::string &ip, int &port) {
+  struct sockaddr_storage addr;
+  socklen_t addr_len = sizeof(addr);
+
+  if (!getpeername(sock, reinterpret_cast<struct sockaddr *>(&addr),
+                   &addr_len)) {
+    get_remote_ip_and_port(addr, addr_len, ip, port);
+  }
+}
+
+constexpr unsigned int str2tag_core(const char *s, size_t l,
+                                           unsigned int h) {
+  return (l == 0) ? h
+                  : str2tag_core(s + 1, l - 1,
+                                 (h * 33) ^ static_cast<unsigned char>(*s));
+}
+
+unsigned int str2tag(const std::string &s) {
+  return str2tag_core(s.data(), s.size(), 0);
+}
+
+namespace udl {
+
+constexpr unsigned int operator"" _t(const char *s, size_t l) {
+  return str2tag_core(s, l, 0);
+}
+
+} // namespace udl
+
+const char *
+find_content_type(const std::string &path,
+                  const std::map<std::string, std::string> &user_data) {
+  auto ext = file_extension(path);
+
+  auto it = user_data.find(ext);
+  if (it != user_data.end()) { return it->second.c_str(); }
+
+  using udl::operator""_t;
+
+  switch (str2tag(ext)) {
+  default: return nullptr;
+  case "css"_t: return "text/css";
+  case "csv"_t: return "text/csv";
+  case "htm"_t:
+  case "html"_t: return "text/html";
+  case "js"_t:
+  case "mjs"_t: return "text/javascript";
+  case "txt"_t: return "text/plain";
+  case "vtt"_t: return "text/vtt";
+
+  case "apng"_t: return "image/apng";
+  case "avif"_t: return "image/avif";
+  case "bmp"_t: return "image/bmp";
+  case "gif"_t: return "image/gif";
+  case "png"_t: return "image/png";
+  case "svg"_t: return "image/svg+xml";
+  case "webp"_t: return "image/webp";
+  case "ico"_t: return "image/x-icon";
+  case "tif"_t: return "image/tiff";
+  case "tiff"_t: return "image/tiff";
+  case "jpg"_t:
+  case "jpeg"_t: return "image/jpeg";
+
+  case "mp4"_t: return "video/mp4";
+  case "mpeg"_t: return "video/mpeg";
+  case "webm"_t: return "video/webm";
+
+  case "mp3"_t: return "audio/mp3";
+  case "mpga"_t: return "audio/mpeg";
+  case "weba"_t: return "audio/webm";
+  case "wav"_t: return "audio/wave";
+
+  case "otf"_t: return "font/otf";
+  case "ttf"_t: return "font/ttf";
+  case "woff"_t: return "font/woff";
+  case "woff2"_t: return "font/woff2";
+
+  case "7z"_t: return "application/x-7z-compressed";
+  case "atom"_t: return "application/atom+xml";
+  case "pdf"_t: return "application/pdf";
+  case "json"_t: return "application/json";
+  case "rss"_t: return "application/rss+xml";
+  case "tar"_t: return "application/x-tar";
+  case "xht"_t:
+  case "xhtml"_t: return "application/xhtml+xml";
+  case "xslt"_t: return "application/xslt+xml";
+  case "xml"_t: return "application/xml";
+  case "gz"_t: return "application/gzip";
+  case "zip"_t: return "application/zip";
+  case "wasm"_t: return "application/wasm";
+  }
+}
+
+const char *status_message(int status) {
+  switch (status) {
+  case 100: return "Continue";
+  case 101: return "Switching Protocol";
+  case 102: return "Processing";
+  case 103: return "Early Hints";
+  case 200: return "OK";
+  case 201: return "Created";
+  case 202: return "Accepted";
+  case 203: return "Non-Authoritative Information";
+  case 204: return "No Content";
+  case 205: return "Reset Content";
+  case 206: return "Partial Content";
+  case 207: return "Multi-Status";
+  case 208: return "Already Reported";
+  case 226: return "IM Used";
+  case 300: return "Multiple Choice";
+  case 301: return "Moved Permanently";
+  case 302: return "Found";
+  case 303: return "See Other";
+  case 304: return "Not Modified";
+  case 305: return "Use Proxy";
+  case 306: return "unused";
+  case 307: return "Temporary Redirect";
+  case 308: return "Permanent Redirect";
+  case 400: return "Bad Request";
+  case 401: return "Unauthorized";
+  case 402: return "Payment Required";
+  case 403: return "Forbidden";
+  case 404: return "Not Found";
+  case 405: return "Method Not Allowed";
+  case 406: return "Not Acceptable";
+  case 407: return "Proxy Authentication Required";
+  case 408: return "Request Timeout";
+  case 409: return "Conflict";
+  case 410: return "Gone";
+  case 411: return "Length Required";
+  case 412: return "Precondition Failed";
+  case 413: return "Payload Too Large";
+  case 414: return "URI Too Long";
+  case 415: return "Unsupported Media Type";
+  case 416: return "Range Not Satisfiable";
+  case 417: return "Expectation Failed";
+  case 418: return "I'm a teapot";
+  case 421: return "Misdirected Request";
+  case 422: return "Unprocessable Entity";
+  case 423: return "Locked";
+  case 424: return "Failed Dependency";
+  case 425: return "Too Early";
+  case 426: return "Upgrade Required";
+  case 428: return "Precondition Required";
+  case 429: return "Too Many Requests";
+  case 431: return "Request Header Fields Too Large";
+  case 451: return "Unavailable For Legal Reasons";
+  case 501: return "Not Implemented";
+  case 502: return "Bad Gateway";
+  case 503: return "Service Unavailable";
+  case 504: return "Gateway Timeout";
+  case 505: return "HTTP Version Not Supported";
+  case 506: return "Variant Also Negotiates";
+  case 507: return "Insufficient Storage";
+  case 508: return "Loop Detected";
+  case 510: return "Not Extended";
+  case 511: return "Network Authentication Required";
+
+  default:
+  case 500: return "Internal Server Error";
+  }
+}
+
+bool can_compress_content_type(const std::string &content_type) {
+  using udl::operator""_t;
+
+  auto tag = str2tag(content_type);
+
+  switch (tag) {
+  case "image/svg+xml"_t:
+  case "application/javascript"_t:
+  case "application/json"_t:
+  case "application/xml"_t:
+  case "application/protobuf"_t:
+  case "application/xhtml+xml"_t: return true;
+
+  default:
+    return !content_type.rfind("text/", 0) && tag != "text/event-stream"_t;
+  }
+}
+
+EncodingType encoding_type(const Request &req, const Response &res) {
+  auto ret =
+      detail::can_compress_content_type(res.get_header_value("Content-Type"));
+  if (!ret) { return EncodingType::None; }
+
+  const auto &s = req.get_header_value("Accept-Encoding");
+  (void)(s);
+
+#ifdef CPPHTTPLIB_BROTLI_SUPPORT
+  // TODO: 'Accept-Encoding' has br, not br;q=0
+  ret = s.find("br") != std::string::npos;
+  if (ret) { return EncodingType::Brotli; }
+#endif
+
+#ifdef CPPHTTPLIB_ZLIB_SUPPORT
+  // TODO: 'Accept-Encoding' has gzip, not gzip;q=0
+  ret = s.find("gzip") != std::string::npos;
+  if (ret) { return EncodingType::Gzip; }
+#endif
+
+  return EncodingType::None;
+}
+
+bool nocompressor::compress(const char *data, size_t data_length,
+                                   bool /*last*/, Callback callback) {
+  if (!data_length) { return true; }
+  return callback(data, data_length);
+}
+
+#ifdef CPPHTTPLIB_ZLIB_SUPPORT
+gzip_compressor::gzip_compressor() {
+  std::memset(&strm_, 0, sizeof(strm_));
+  strm_.zalloc = Z_NULL;
+  strm_.zfree = Z_NULL;
+  strm_.opaque = Z_NULL;
+
+  is_valid_ = deflateInit2(&strm_, Z_DEFAULT_COMPRESSION, Z_DEFLATED, 31, 8,
+                           Z_DEFAULT_STRATEGY) == Z_OK;
+}
+
+gzip_compressor::~gzip_compressor() { deflateEnd(&strm_); }
+
+bool gzip_compressor::compress(const char *data, size_t data_length,
+                                      bool last, Callback callback) {
+  assert(is_valid_);
+
+  do {
+    constexpr size_t max_avail_in =
+        (std::numeric_limits<decltype(strm_.avail_in)>::max)();
+
+    strm_.avail_in = static_cast<decltype(strm_.avail_in)>(
+        (std::min)(data_length, max_avail_in));
+    strm_.next_in = const_cast<Bytef *>(reinterpret_cast<const Bytef *>(data));
+
+    data_length -= strm_.avail_in;
+    data += strm_.avail_in;
+
+    auto flush = (last && data_length == 0) ? Z_FINISH : Z_NO_FLUSH;
+    int ret = Z_OK;
+
+    std::array<char, CPPHTTPLIB_COMPRESSION_BUFSIZ> buff{};
+    do {
+      strm_.avail_out = static_cast<uInt>(buff.size());
+      strm_.next_out = reinterpret_cast<Bytef *>(buff.data());
+
+      ret = deflate(&strm_, flush);
+      if (ret == Z_STREAM_ERROR) { return false; }
+
+      if (!callback(buff.data(), buff.size() - strm_.avail_out)) {
+        return false;
+      }
+    } while (strm_.avail_out == 0);
+
+    assert((flush == Z_FINISH && ret == Z_STREAM_END) ||
+           (flush == Z_NO_FLUSH && ret == Z_OK));
+    assert(strm_.avail_in == 0);
+  } while (data_length > 0);
+
+  return true;
+}
+
+gzip_decompressor::gzip_decompressor() {
+  std::memset(&strm_, 0, sizeof(strm_));
+  strm_.zalloc = Z_NULL;
+  strm_.zfree = Z_NULL;
+  strm_.opaque = Z_NULL;
+
+  // 15 is the value of wbits, which should be at the maximum possible value
+  // to ensure that any gzip stream can be decoded. The offset of 32 specifies
+  // that the stream type should be automatically detected either gzip or
+  // deflate.
+  is_valid_ = inflateInit2(&strm_, 32 + 15) == Z_OK;
+}
+
+gzip_decompressor::~gzip_decompressor() { inflateEnd(&strm_); }
+
+bool gzip_decompressor::is_valid() const { return is_valid_; }
+
+bool gzip_decompressor::decompress(const char *data, size_t data_length,
+                                          Callback callback) {
+  assert(is_valid_);
+
+  int ret = Z_OK;
+
+  do {
+    constexpr size_t max_avail_in =
+        (std::numeric_limits<decltype(strm_.avail_in)>::max)();
+
+    strm_.avail_in = static_cast<decltype(strm_.avail_in)>(
+        (std::min)(data_length, max_avail_in));
+    strm_.next_in = const_cast<Bytef *>(reinterpret_cast<const Bytef *>(data));
+
+    data_length -= strm_.avail_in;
+    data += strm_.avail_in;
+
+    std::array<char, CPPHTTPLIB_COMPRESSION_BUFSIZ> buff{};
+    while (strm_.avail_in > 0) {
+      strm_.avail_out = static_cast<uInt>(buff.size());
+      strm_.next_out = reinterpret_cast<Bytef *>(buff.data());
+
+      auto prev_avail_in = strm_.avail_in;
+
+      ret = inflate(&strm_, Z_NO_FLUSH);
+
+      if (prev_avail_in - strm_.avail_in == 0) { return false; }
+
+      assert(ret != Z_STREAM_ERROR);
+      switch (ret) {
+      case Z_NEED_DICT:
+      case Z_DATA_ERROR:
+      case Z_MEM_ERROR: inflateEnd(&strm_); return false;
+      }
+
+      if (!callback(buff.data(), buff.size() - strm_.avail_out)) {
+        return false;
+      }
+    }
+
+    if (ret != Z_OK && ret != Z_STREAM_END) return false;
+
+  } while (data_length > 0);
+
+  return true;
+}
+#endif
+
+#ifdef CPPHTTPLIB_BROTLI_SUPPORT
+brotli_compressor::brotli_compressor() {
+  state_ = BrotliEncoderCreateInstance(nullptr, nullptr, nullptr);
+}
+
+brotli_compressor::~brotli_compressor() {
+  BrotliEncoderDestroyInstance(state_);
+}
+
+bool brotli_compressor::compress(const char *data, size_t data_length,
+                                        bool last, Callback callback) {
+  std::array<uint8_t, CPPHTTPLIB_COMPRESSION_BUFSIZ> buff{};
+
+  auto operation = last ? BROTLI_OPERATION_FINISH : BROTLI_OPERATION_PROCESS;
+  auto available_in = data_length;
+  auto next_in = reinterpret_cast<const uint8_t *>(data);
+
+  for (;;) {
+    if (last) {
+      if (BrotliEncoderIsFinished(state_)) { break; }
+    } else {
+      if (!available_in) { break; }
+    }
+
+    auto available_out = buff.size();
+    auto next_out = buff.data();
+
+    if (!BrotliEncoderCompressStream(state_, operation, &available_in, &next_in,
+                                     &available_out, &next_out, nullptr)) {
+      return false;
+    }
+
+    auto output_bytes = buff.size() - available_out;
+    if (output_bytes) {
+      callback(reinterpret_cast<const char *>(buff.data()), output_bytes);
+    }
+  }
+
+  return true;
+}
+
+brotli_decompressor::brotli_decompressor() {
+  decoder_s = BrotliDecoderCreateInstance(0, 0, 0);
+  decoder_r = decoder_s ? BROTLI_DECODER_RESULT_NEEDS_MORE_INPUT
+                        : BROTLI_DECODER_RESULT_ERROR;
+}
+
+brotli_decompressor::~brotli_decompressor() {
+  if (decoder_s) { BrotliDecoderDestroyInstance(decoder_s); }
+}
+
+bool brotli_decompressor::is_valid() const { return decoder_s; }
+
+bool brotli_decompressor::decompress(const char *data,
+                                            size_t data_length,
+                                            Callback callback) {
+  if (decoder_r == BROTLI_DECODER_RESULT_SUCCESS ||
+      decoder_r == BROTLI_DECODER_RESULT_ERROR) {
+    return 0;
+  }
+
+  const uint8_t *next_in = (const uint8_t *)data;
+  size_t avail_in = data_length;
+  size_t total_out;
+
+  decoder_r = BROTLI_DECODER_RESULT_NEEDS_MORE_OUTPUT;
+
+  std::array<char, CPPHTTPLIB_COMPRESSION_BUFSIZ> buff{};
+  while (decoder_r == BROTLI_DECODER_RESULT_NEEDS_MORE_OUTPUT) {
+    char *next_out = buff.data();
+    size_t avail_out = buff.size();
+
+    decoder_r = BrotliDecoderDecompressStream(
+        decoder_s, &avail_in, &next_in, &avail_out,
+        reinterpret_cast<uint8_t **>(&next_out), &total_out);
+
+    if (decoder_r == BROTLI_DECODER_RESULT_ERROR) { return false; }
+
+    if (!callback(buff.data(), buff.size() - avail_out)) { return false; }
+  }
+
+  return decoder_r == BROTLI_DECODER_RESULT_SUCCESS ||
+         decoder_r == BROTLI_DECODER_RESULT_NEEDS_MORE_INPUT;
+}
+#endif
+
+bool has_header(const Headers &headers, const std::string &key) {
+  return headers.find(key) != headers.end();
+}
+
+const char *get_header_value(const Headers &headers,
+                                    const std::string &key, size_t id,
+                                    const char *def) {
+  auto rng = headers.equal_range(key);
+  auto it = rng.first;
+  std::advance(it, static_cast<ssize_t>(id));
+  if (it != rng.second) { return it->second.c_str(); }
+  return def;
+}
+
+template <typename T>
+bool parse_header(const char *beg, const char *end, T fn) {
+  // Skip trailing spaces and tabs.
+  while (beg < end && is_space_or_tab(end[-1])) {
+    end--;
+  }
+
+  auto p = beg;
+  while (p < end && *p != ':') {
+    p++;
+  }
+
+  if (p == end) { return false; }
+
+  auto key_end = p;
+
+  if (*p++ != ':') { return false; }
+
+  while (p < end && is_space_or_tab(*p)) {
+    p++;
+  }
+
+  if (p < end) {
+    fn(std::string(beg, key_end), decode_url(std::string(p, end), false));
+    return true;
+  }
+
+  return false;
+}
+
+bool read_headers(Stream &strm, Headers &headers) {
+  const auto bufsiz = 2048;
+  char buf[bufsiz];
+  stream_line_reader line_reader(strm, buf, bufsiz);
+
+  for (;;) {
+    if (!line_reader.getline()) { return false; }
+
+    // Check if the line ends with CRLF.
+    auto line_terminator_len = 2;
+    if (line_reader.end_with_crlf()) {
+      // Blank line indicates end of headers.
+      if (line_reader.size() == 2) { break; }
+#ifdef CPPHTTPLIB_ALLOW_LF_AS_LINE_TERMINATOR
+    } else {
+      // Blank line indicates end of headers.
+      if (line_reader.size() == 1) { break; }
+      line_terminator_len = 1;
+    }
+#else
+    } else {
+      continue; // Skip invalid line.
+    }
+#endif
+
+    if (line_reader.size() > CPPHTTPLIB_HEADER_MAX_LENGTH) { return false; }
+
+    // Exclude line terminator
+    auto end = line_reader.ptr() + line_reader.size() - line_terminator_len;
+
+    parse_header(line_reader.ptr(), end,
+                 [&](std::string &&key, std::string &&val) {
+                   headers.emplace(std::move(key), std::move(val));
+                 });
+  }
+
+  return true;
+}
+
+bool read_content_with_length(Stream &strm, uint64_t len,
+                                     Progress progress,
+                                     ContentReceiverWithProgress out) {
+  char buf[CPPHTTPLIB_RECV_BUFSIZ];
+
+  uint64_t r = 0;
+  while (r < len) {
+    auto read_len = static_cast<size_t>(len - r);
+    auto n = strm.read(buf, (std::min)(read_len, CPPHTTPLIB_RECV_BUFSIZ));
+    if (n <= 0) { return false; }
+
+    if (!out(buf, static_cast<size_t>(n), r, len)) { return false; }
+    r += static_cast<uint64_t>(n);
+
+    if (progress) {
+      if (!progress(r, len)) { return false; }
+    }
+  }
+
+  return true;
+}
+
+void skip_content_with_length(Stream &strm, uint64_t len) {
+  char buf[CPPHTTPLIB_RECV_BUFSIZ];
+  uint64_t r = 0;
+  while (r < len) {
+    auto read_len = static_cast<size_t>(len - r);
+    auto n = strm.read(buf, (std::min)(read_len, CPPHTTPLIB_RECV_BUFSIZ));
+    if (n <= 0) { return; }
+    r += static_cast<uint64_t>(n);
+  }
+}
+
+bool read_content_without_length(Stream &strm,
+                                        ContentReceiverWithProgress out) {
+  char buf[CPPHTTPLIB_RECV_BUFSIZ];
+  uint64_t r = 0;
+  for (;;) {
+    auto n = strm.read(buf, CPPHTTPLIB_RECV_BUFSIZ);
+    if (n < 0) {
+      return false;
+    } else if (n == 0) {
+      return true;
+    }
+
+    if (!out(buf, static_cast<size_t>(n), r, 0)) { return false; }
+    r += static_cast<uint64_t>(n);
+  }
+
+  return true;
+}
+
+bool read_content_chunked(Stream &strm,
+                                 ContentReceiverWithProgress out) {
+  const auto bufsiz = 16;
+  char buf[bufsiz];
+
+  stream_line_reader line_reader(strm, buf, bufsiz);
+
+  if (!line_reader.getline()) { return false; }
+
+  unsigned long chunk_len;
+  while (true) {
+    char *end_ptr;
+
+    chunk_len = std::strtoul(line_reader.ptr(), &end_ptr, 16);
+
+    if (end_ptr == line_reader.ptr()) { return false; }
+    if (chunk_len == ULONG_MAX) { return false; }
+
+    if (chunk_len == 0) { break; }
+
+    if (!read_content_with_length(strm, chunk_len, nullptr, out)) {
+      return false;
+    }
+
+    if (!line_reader.getline()) { return false; }
+
+    if (strcmp(line_reader.ptr(), "\r\n")) { break; }
+
+    if (!line_reader.getline()) { return false; }
+  }
+
+  if (chunk_len == 0) {
+    // Reader terminator after chunks
+    if (!line_reader.getline() || strcmp(line_reader.ptr(), "\r\n"))
+      return false;
+  }
+
+  return true;
+}
+
+bool is_chunked_transfer_encoding(const Headers &headers) {
+  return !strcasecmp(get_header_value(headers, "Transfer-Encoding", 0, ""),
+                     "chunked");
+}
+
+template <typename T, typename U>
+bool prepare_content_receiver(T &x, int &status,
+                              ContentReceiverWithProgress receiver,
+                              bool decompress, U callback) {
+  if (decompress) {
+    std::string encoding = x.get_header_value("Content-Encoding");
+    std::unique_ptr<decompressor> decompressor;
+
+    if (encoding == "gzip" || encoding == "deflate") {
+#ifdef CPPHTTPLIB_ZLIB_SUPPORT
+      decompressor = detail::make_unique<gzip_decompressor>();
+#else
+      status = 415;
+      return false;
+#endif
+    } else if (encoding.find("br") != std::string::npos) {
+#ifdef CPPHTTPLIB_BROTLI_SUPPORT
+      decompressor = detail::make_unique<brotli_decompressor>();
+#else
+      status = 415;
+      return false;
+#endif
+    }
+
+    if (decompressor) {
+      if (decompressor->is_valid()) {
+        ContentReceiverWithProgress out = [&](const char *buf, size_t n,
+                                              uint64_t off, uint64_t len) {
+          return decompressor->decompress(buf, n,
+                                          [&](const char *buf2, size_t n2) {
+                                            return receiver(buf2, n2, off, len);
+                                          });
+        };
+        return callback(std::move(out));
+      } else {
+        status = 500;
+        return false;
+      }
+    }
+  }
+
+  ContentReceiverWithProgress out = [&](const char *buf, size_t n, uint64_t off,
+                                        uint64_t len) {
+    return receiver(buf, n, off, len);
+  };
+  return callback(std::move(out));
+}
+
+template <typename T>
+bool read_content(Stream &strm, T &x, size_t payload_max_length, int &status,
+                  Progress progress, ContentReceiverWithProgress receiver,
+                  bool decompress) {
+  return prepare_content_receiver(
+      x, status, std::move(receiver), decompress,
+      [&](const ContentReceiverWithProgress &out) {
+        auto ret = true;
+        auto exceed_payload_max_length = false;
+
+        if (is_chunked_transfer_encoding(x.headers)) {
+          ret = read_content_chunked(strm, out);
+        } else if (!has_header(x.headers, "Content-Length")) {
+          ret = read_content_without_length(strm, out);
+        } else {
+          auto len = get_header_value<uint64_t>(x.headers, "Content-Length");
+          if (len > payload_max_length) {
+            exceed_payload_max_length = true;
+            skip_content_with_length(strm, len);
+            ret = false;
+          } else if (len > 0) {
+            ret = read_content_with_length(strm, len, std::move(progress), out);
+          }
+        }
+
+        if (!ret) { status = exceed_payload_max_length ? 413 : 400; }
+        return ret;
+      });
+} // namespace detail
+
+ssize_t write_headers(Stream &strm, const Headers &headers) {
+  ssize_t write_len = 0;
+  for (const auto &x : headers) {
+    auto len =
+        strm.write_format("%s: %s\r\n", x.first.c_str(), x.second.c_str());
+    if (len < 0) { return len; }
+    write_len += len;
+  }
+  auto len = strm.write("\r\n");
+  if (len < 0) { return len; }
+  write_len += len;
+  return write_len;
+}
+
+bool write_data(Stream &strm, const char *d, size_t l) {
+  size_t offset = 0;
+  while (offset < l) {
+    auto length = strm.write(d + offset, l - offset);
+    if (length < 0) { return false; }
+    offset += static_cast<size_t>(length);
+  }
+  return true;
+}
+
+template <typename T>
+bool write_content(Stream &strm, const ContentProvider &content_provider,
+                          size_t offset, size_t length, T is_shutting_down,
+                          Error &error) {
+  size_t end_offset = offset + length;
+  auto ok = true;
+  DataSink data_sink;
+
+  data_sink.write = [&](const char *d, size_t l) -> bool {
+    if (ok) {
+      if (write_data(strm, d, l)) {
+        offset += l;
+      } else {
+        ok = false;
+      }
+    }
+    return ok;
+  };
+
+  data_sink.is_writable = [&](void) { return ok && strm.is_writable(); };
+
+  while (offset < end_offset && !is_shutting_down()) {
+    if (!content_provider(offset, end_offset - offset, data_sink)) {
+      error = Error::Canceled;
+      return false;
+    }
+    if (!ok) {
+      error = Error::Write;
+      return false;
+    }
+  }
+
+  error = Error::Success;
+  return true;
+}
+
+template <typename T>
+bool write_content(Stream &strm, const ContentProvider &content_provider,
+                          size_t offset, size_t length,
+                          const T &is_shutting_down) {
+  auto error = Error::Success;
+  return write_content(strm, content_provider, offset, length, is_shutting_down,
+                       error);
+}
+
+template <typename T>
+bool
+write_content_without_length(Stream &strm,
+                             const ContentProvider &content_provider,
+                             const T &is_shutting_down) {
+  size_t offset = 0;
+  auto data_available = true;
+  auto ok = true;
+  DataSink data_sink;
+
+  data_sink.write = [&](const char *d, size_t l) -> bool {
+    if (ok) {
+      offset += l;
+      if (!write_data(strm, d, l)) { ok = false; }
+    }
+    return ok;
+  };
+
+  data_sink.done = [&](void) { data_available = false; };
+
+  data_sink.is_writable = [&](void) { return ok && strm.is_writable(); };
+
+  while (data_available && !is_shutting_down()) {
+    if (!content_provider(offset, 0, data_sink)) { return false; }
+    if (!ok) { return false; }
+  }
+  return true;
+}
+
+template <typename T, typename U>
+bool
+write_content_chunked(Stream &strm, const ContentProvider &content_provider,
+                      const T &is_shutting_down, U &compressor, Error &error) {
+  size_t offset = 0;
+  auto data_available = true;
+  auto ok = true;
+  DataSink data_sink;
+
+  data_sink.write = [&](const char *d, size_t l) -> bool {
+    if (ok) {
+      data_available = l > 0;
+      offset += l;
+
+      std::string payload;
+      if (compressor.compress(d, l, false,
+                              [&](const char *data, size_t data_len) {
+                                payload.append(data, data_len);
+                                return true;
+                              })) {
+        if (!payload.empty()) {
+          // Emit chunked response header and footer for each chunk
+          auto chunk =
+              from_i_to_hex(payload.size()) + "\r\n" + payload + "\r\n";
+          if (!write_data(strm, chunk.data(), chunk.size())) { ok = false; }
+        }
+      } else {
+        ok = false;
+      }
+    }
+    return ok;
+  };
+
+  data_sink.done = [&](void) {
+    if (!ok) { return; }
+
+    data_available = false;
+
+    std::string payload;
+    if (!compressor.compress(nullptr, 0, true,
+                             [&](const char *data, size_t data_len) {
+                               payload.append(data, data_len);
+                               return true;
+                             })) {
+      ok = false;
+      return;
+    }
+
+    if (!payload.empty()) {
+      // Emit chunked response header and footer for each chunk
+      auto chunk = from_i_to_hex(payload.size()) + "\r\n" + payload + "\r\n";
+      if (!write_data(strm, chunk.data(), chunk.size())) {
+        ok = false;
+        return;
+      }
+    }
+
+    static const std::string done_marker("0\r\n\r\n");
+    if (!write_data(strm, done_marker.data(), done_marker.size())) {
+      ok = false;
+    }
+  };
+
+  data_sink.is_writable = [&](void) { return ok && strm.is_writable(); };
+
+  while (data_available && !is_shutting_down()) {
+    if (!content_provider(offset, 0, data_sink)) {
+      error = Error::Canceled;
+      return false;
+    }
+    if (!ok) {
+      error = Error::Write;
+      return false;
+    }
+  }
+
+  error = Error::Success;
+  return true;
+}
+
+template <typename T, typename U>
+bool write_content_chunked(Stream &strm,
+                                  const ContentProvider &content_provider,
+                                  const T &is_shutting_down, U &compressor) {
+  auto error = Error::Success;
+  return write_content_chunked(strm, content_provider, is_shutting_down,
+                               compressor, error);
+}
+
+template <typename T>
+bool redirect(T &cli, Request &req, Response &res,
+                     const std::string &path, const std::string &location,
+                     Error &error) {
+  Request new_req = req;
+  new_req.path = path;
+  new_req.redirect_count_ -= 1;
+
+  if (res.status == 303 && (req.method != "GET" && req.method != "HEAD")) {
+    new_req.method = "GET";
+    new_req.body.clear();
+    new_req.headers.clear();
+  }
+
+  Response new_res;
+
+  auto ret = cli.send(new_req, new_res, error);
+  if (ret) {
+    req = new_req;
+    res = new_res;
+    res.location = location;
+  }
+  return ret;
+}
+
+std::string params_to_query_str(const Params &params) {
+  std::string query;
+
+  for (auto it = params.begin(); it != params.end(); ++it) {
+    if (it != params.begin()) { query += "&"; }
+    query += it->first;
+    query += "=";
+    query += encode_query_param(it->second);
+  }
+  return query;
+}
+
+void parse_query_text(const std::string &s, Params &params) {
+  std::set<std::string> cache;
+  split(s.data(), s.data() + s.size(), '&', [&](const char *b, const char *e) {
+    std::string kv(b, e);
+    if (cache.find(kv) != cache.end()) { return; }
+    cache.insert(kv);
+
+    std::string key;
+    std::string val;
+    split(b, e, '=', [&](const char *b2, const char *e2) {
+      if (key.empty()) {
+        key.assign(b2, e2);
+      } else {
+        val.assign(b2, e2);
+      }
+    });
+
+    if (!key.empty()) {
+      params.emplace(decode_url(key, true), decode_url(val, true));
+    }
+  });
+}
+
+bool parse_multipart_boundary(const std::string &content_type,
+                                     std::string &boundary) {
+  auto pos = content_type.find("boundary=");
+  if (pos == std::string::npos) { return false; }
+  boundary = content_type.substr(pos + 9);
+  if (boundary.length() >= 2 && boundary.front() == '"' &&
+      boundary.back() == '"') {
+    boundary = boundary.substr(1, boundary.size() - 2);
+  }
+  return !boundary.empty();
+}
+
+#ifdef CPPHTTPLIB_NO_EXCEPTIONS
+bool parse_range_header(const std::string &s, Ranges &ranges) {
+#else
+bool parse_range_header(const std::string &s, Ranges &ranges) try {
+#endif
+  static auto re_first_range = std::regex(R"(bytes=(\d*-\d*(?:,\s*\d*-\d*)*))");
+  std::smatch m;
+  if (std::regex_match(s, m, re_first_range)) {
+    auto pos = static_cast<size_t>(m.position(1));
+    auto len = static_cast<size_t>(m.length(1));
+    bool all_valid_ranges = true;
+    split(&s[pos], &s[pos + len], ',', [&](const char *b, const char *e) {
+      if (!all_valid_ranges) return;
+      static auto re_another_range = std::regex(R"(\s*(\d*)-(\d*))");
+      std::cmatch cm;
+      if (std::regex_match(b, e, cm, re_another_range)) {
+        ssize_t first = -1;
+        if (!cm.str(1).empty()) {
+          first = static_cast<ssize_t>(std::stoll(cm.str(1)));
+        }
+
+        ssize_t last = -1;
+        if (!cm.str(2).empty()) {
+          last = static_cast<ssize_t>(std::stoll(cm.str(2)));
+        }
+
+        if (first != -1 && last != -1 && first > last) {
+          all_valid_ranges = false;
+          return;
+        }
+        ranges.emplace_back(std::make_pair(first, last));
+      }
+    });
+    return all_valid_ranges;
+  }
+  return false;
+#ifdef CPPHTTPLIB_NO_EXCEPTIONS
+}
+#else
+} catch (...) { return false; }
+#endif
+
+class MultipartFormDataParser {
+public:
+  MultipartFormDataParser() = default;
+
+  void set_boundary(std::string &&boundary) {
+    boundary_ = boundary;
+    dash_boundary_crlf_ = dash_ + boundary_ + crlf_;
+    crlf_dash_boundary_ = crlf_ + dash_ + boundary_;
+  }
+
+  bool is_valid() const { return is_valid_; }
+
+  bool parse(const char *buf, size_t n, const ContentReceiver &content_callback,
+             const MultipartContentHeader &header_callback) {
+
+    // TODO: support 'filename*'
+    static const std::regex re_content_disposition(
+        R"~(^Content-Disposition:\s*form-data;\s*name="(.*?)"(?:;\s*filename="(.*?)")?(?:;\s*filename\*=\S+)?\s*$)~",
+        std::regex_constants::icase);
+
+    buf_append(buf, n);
+
+    while (buf_size() > 0) {
+      switch (state_) {
+      case 0: { // Initial boundary
+        buf_erase(buf_find(dash_boundary_crlf_));
+        if (dash_boundary_crlf_.size() > buf_size()) { return true; }
+        if (!buf_start_with(dash_boundary_crlf_)) { return false; }
+        buf_erase(dash_boundary_crlf_.size());
+        state_ = 1;
+        break;
+      }
+      case 1: { // New entry
+        clear_file_info();
+        state_ = 2;
+        break;
+      }
+      case 2: { // Headers
+        auto pos = buf_find(crlf_);
+        if (pos > CPPHTTPLIB_HEADER_MAX_LENGTH) { return false; }
+        while (pos < buf_size()) {
+          // Empty line
+          if (pos == 0) {
+            if (!header_callback(file_)) {
+              is_valid_ = false;
+              return false;
+            }
+            buf_erase(crlf_.size());
+            state_ = 3;
+            break;
+          }
+
+          static const std::string header_name = "content-type:";
+          const auto header = buf_head(pos);
+          if (start_with_case_ignore(header, header_name)) {
+            file_.content_type = trim_copy(header.substr(header_name.size()));
+          } else {
+            std::smatch m;
+            if (std::regex_match(header, m, re_content_disposition)) {
+              file_.name = m[1];
+              file_.filename = m[2];
+            }
+          }
+          buf_erase(pos + crlf_.size());
+          pos = buf_find(crlf_);
+        }
+        if (state_ != 3) { return true; }
+        break;
+      }
+      case 3: { // Body
+        if (crlf_dash_boundary_.size() > buf_size()) { return true; }
+        auto pos = buf_find(crlf_dash_boundary_);
+        if (pos < buf_size()) {
+          if (!content_callback(buf_data(), pos)) {
+            is_valid_ = false;
+            return false;
+          }
+          buf_erase(pos + crlf_dash_boundary_.size());
+          state_ = 4;
+        } else {
+          auto len = buf_size() - crlf_dash_boundary_.size();
+          if (len > 0) {
+            if (!content_callback(buf_data(), len)) {
+              is_valid_ = false;
+              return false;
+            }
+            buf_erase(len);
+          }
+          return true;
+        }
+        break;
+      }
+      case 4: { // Boundary
+        if (crlf_.size() > buf_size()) { return true; }
+        if (buf_start_with(crlf_)) {
+          buf_erase(crlf_.size());
+          state_ = 1;
+        } else {
+          if (dash_crlf_.size() > buf_size()) { return true; }
+          if (buf_start_with(dash_crlf_)) {
+            buf_erase(dash_crlf_.size());
+            is_valid_ = true;
+            buf_erase(buf_size()); // Remove epilogue
+          } else {
+            return true;
+          }
+        }
+        break;
+      }
+      }
+    }
+
+    return true;
+  }
+
+private:
+  void clear_file_info() {
+    file_.name.clear();
+    file_.filename.clear();
+    file_.content_type.clear();
+  }
+
+  bool start_with_case_ignore(const std::string &a,
+                              const std::string &b) const {
+    if (a.size() < b.size()) { return false; }
+    for (size_t i = 0; i < b.size(); i++) {
+      if (::tolower(a[i]) != ::tolower(b[i])) { return false; }
+    }
+    return true;
+  }
+
+  const std::string dash_ = "--";
+  const std::string crlf_ = "\r\n";
+  const std::string dash_crlf_ = "--\r\n";
+  std::string boundary_;
+  std::string dash_boundary_crlf_;
+  std::string crlf_dash_boundary_;
+
+  size_t state_ = 0;
+  bool is_valid_ = false;
+  MultipartFormData file_;
+
+  // Buffer
+  bool start_with(const std::string &a, size_t spos, size_t epos,
+                  const std::string &b) const {
+    if (epos - spos < b.size()) { return false; }
+    for (size_t i = 0; i < b.size(); i++) {
+      if (a[i + spos] != b[i]) { return false; }
+    }
+    return true;
+  }
+
+  size_t buf_size() const { return buf_epos_ - buf_spos_; }
+
+  const char *buf_data() const { return &buf_[buf_spos_]; }
+
+  std::string buf_head(size_t l) const { return buf_.substr(buf_spos_, l); }
+
+  bool buf_start_with(const std::string &s) const {
+    return start_with(buf_, buf_spos_, buf_epos_, s);
+  }
+
+  size_t buf_find(const std::string &s) const {
+    auto c = s.front();
+
+    size_t off = buf_spos_;
+    while (off < buf_epos_) {
+      auto pos = off;
+      while (true) {
+        if (pos == buf_epos_) { return buf_size(); }
+        if (buf_[pos] == c) { break; }
+        pos++;
+      }
+
+      auto remaining_size = buf_epos_ - pos;
+      if (s.size() > remaining_size) { return buf_size(); }
+
+      if (start_with(buf_, pos, buf_epos_, s)) { return pos - buf_spos_; }
+
+      off = pos + 1;
+    }
+
+    return buf_size();
+  }
+
+  void buf_append(const char *data, size_t n) {
+    auto remaining_size = buf_size();
+    if (remaining_size > 0 && buf_spos_ > 0) {
+      for (size_t i = 0; i < remaining_size; i++) {
+        buf_[i] = buf_[buf_spos_ + i];
+      }
+    }
+    buf_spos_ = 0;
+    buf_epos_ = remaining_size;
+
+    if (remaining_size + n > buf_.size()) { buf_.resize(remaining_size + n); }
+
+    for (size_t i = 0; i < n; i++) {
+      buf_[buf_epos_ + i] = data[i];
+    }
+    buf_epos_ += n;
+  }
+
+  void buf_erase(size_t size) { buf_spos_ += size; }
+
+  std::string buf_;
+  size_t buf_spos_ = 0;
+  size_t buf_epos_ = 0;
+};
+
+std::string to_lower(const char *beg, const char *end) {
+  std::string out;
+  auto it = beg;
+  while (it != end) {
+    out += static_cast<char>(::tolower(*it));
+    it++;
+  }
+  return out;
+}
+
+std::string make_multipart_data_boundary() {
+  static const char data[] =
+      "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
+
+  // std::random_device might actually be deterministic on some
+  // platforms, but due to lack of support in the c++ standard library,
+  // doing better requires either some ugly hacks or breaking portability.
+  std::random_device seed_gen;
+
+  // Request 128 bits of entropy for initialization
+  std::seed_seq seed_sequence{seed_gen(), seed_gen(), seed_gen(), seed_gen()};
+  std::mt19937 engine(seed_sequence);
+
+  std::string result = "--cpp-httplib-multipart-data-";
+
+  for (auto i = 0; i < 16; i++) {
+    result += data[engine() % (sizeof(data) - 1)];
+  }
+
+  return result;
+}
+
+bool is_multipart_boundary_chars_valid(const std::string &boundary) {
+  auto valid = true;
+  for (size_t i = 0; i < boundary.size(); i++) {
+    auto c = boundary[i];
+    if (!std::isalnum(c) && c != '-' && c != '_') {
+      valid = false;
+      break;
+    }
+  }
+  return valid;
+}
+
+std::string
+serialize_multipart_formdata(const MultipartFormDataItems &items,
+                             const std::string &boundary,
+                             std::string &content_type) {
+  std::string body;
+
+  for (const auto &item : items) {
+    body += "--" + boundary + "\r\n";
+    body += "Content-Disposition: form-data; name=\"" + item.name + "\"";
+    if (!item.filename.empty()) {
+      body += "; filename=\"" + item.filename + "\"";
+    }
+    body += "\r\n";
+    if (!item.content_type.empty()) {
+      body += "Content-Type: " + item.content_type + "\r\n";
+    }
+    body += "\r\n";
+    body += item.content + "\r\n";
+  }
+
+  body += "--" + boundary + "--\r\n";
+
+  content_type = "multipart/form-data; boundary=" + boundary;
+  return body;
+}
+
+std::pair<size_t, size_t>
+get_range_offset_and_length(const Request &req, size_t content_length,
+                            size_t index) {
+  auto r = req.ranges[index];
+
+  if (r.first == -1 && r.second == -1) {
+    return std::make_pair(0, content_length);
+  }
+
+  auto slen = static_cast<ssize_t>(content_length);
+
+  if (r.first == -1) {
+    r.first = (std::max)(static_cast<ssize_t>(0), slen - r.second);
+    r.second = slen - 1;
+  }
+
+  if (r.second == -1) { r.second = slen - 1; }
+  return std::make_pair(r.first, static_cast<size_t>(r.second - r.first) + 1);
+}
+
+std::string make_content_range_header_field(size_t offset, size_t length,
+                                                   size_t content_length) {
+  std::string field = "bytes ";
+  field += std::to_string(offset);
+  field += "-";
+  field += std::to_string(offset + length - 1);
+  field += "/";
+  field += std::to_string(content_length);
+  return field;
+}
+
+template <typename SToken, typename CToken, typename Content>
+bool process_multipart_ranges_data(const Request &req, Response &res,
+                                   const std::string &boundary,
+                                   const std::string &content_type,
+                                   SToken stoken, CToken ctoken,
+                                   Content content) {
+  for (size_t i = 0; i < req.ranges.size(); i++) {
+    ctoken("--");
+    stoken(boundary);
+    ctoken("\r\n");
+    if (!content_type.empty()) {
+      ctoken("Content-Type: ");
+      stoken(content_type);
+      ctoken("\r\n");
+    }
+
+    auto offsets = get_range_offset_and_length(req, res.body.size(), i);
+    auto offset = offsets.first;
+    auto length = offsets.second;
+
+    ctoken("Content-Range: ");
+    stoken(make_content_range_header_field(offset, length, res.body.size()));
+    ctoken("\r\n");
+    ctoken("\r\n");
+    if (!content(offset, length)) { return false; }
+    ctoken("\r\n");
+  }
+
+  ctoken("--");
+  stoken(boundary);
+  ctoken("--\r\n");
+
+  return true;
+}
+
+bool make_multipart_ranges_data(const Request &req, Response &res,
+                                       const std::string &boundary,
+                                       const std::string &content_type,
+                                       std::string &data) {
+  return process_multipart_ranges_data(
+      req, res, boundary, content_type,
+      [&](const std::string &token) { data += token; },
+      [&](const std::string &token) { data += token; },
+      [&](size_t offset, size_t length) {
+        if (offset < res.body.size()) {
+          data += res.body.substr(offset, length);
+          return true;
+        }
+        return false;
+      });
+}
+
+size_t
+get_multipart_ranges_data_length(const Request &req, Response &res,
+                                 const std::string &boundary,
+                                 const std::string &content_type) {
+  size_t data_length = 0;
+
+  process_multipart_ranges_data(
+      req, res, boundary, content_type,
+      [&](const std::string &token) { data_length += token.size(); },
+      [&](const std::string &token) { data_length += token.size(); },
+      [&](size_t /*offset*/, size_t length) {
+        data_length += length;
+        return true;
+      });
+
+  return data_length;
+}
+
+template <typename T>
+bool write_multipart_ranges_data(Stream &strm, const Request &req,
+                                        Response &res,
+                                        const std::string &boundary,
+                                        const std::string &content_type,
+                                        const T &is_shutting_down) {
+  return process_multipart_ranges_data(
+      req, res, boundary, content_type,
+      [&](const std::string &token) { strm.write(token); },
+      [&](const std::string &token) { strm.write(token); },
+      [&](size_t offset, size_t length) {
+        return write_content(strm, res.content_provider_, offset, length,
+                             is_shutting_down);
+      });
+}
+
+std::pair<size_t, size_t>
+get_range_offset_and_length(const Request &req, const Response &res,
+                            size_t index) {
+  auto r = req.ranges[index];
+
+  if (r.second == -1) {
+    r.second = static_cast<ssize_t>(res.content_length_) - 1;
+  }
+
+  return std::make_pair(r.first, r.second - r.first + 1);
+}
+
+bool expect_content(const Request &req) {
+  if (req.method == "POST" || req.method == "PUT" || req.method == "PATCH" ||
+      req.method == "PRI" || req.method == "DELETE") {
+    return true;
+  }
+  // TODO: check if Content-Length is set
+  return false;
+}
+
+bool has_crlf(const std::string &s) {
+  auto p = s.c_str();
+  while (*p) {
+    if (*p == '\r' || *p == '\n') { return true; }
+    p++;
+  }
+  return false;
+}
+
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+std::string message_digest(const std::string &s, const EVP_MD *algo) {
+  auto context = std::unique_ptr<EVP_MD_CTX, decltype(&EVP_MD_CTX_free)>(
+      EVP_MD_CTX_new(), EVP_MD_CTX_free);
+
+  unsigned int hash_length = 0;
+  unsigned char hash[EVP_MAX_MD_SIZE];
+
+  EVP_DigestInit_ex(context.get(), algo, nullptr);
+  EVP_DigestUpdate(context.get(), s.c_str(), s.size());
+  EVP_DigestFinal_ex(context.get(), hash, &hash_length);
+
+  std::stringstream ss;
+  for (auto i = 0u; i < hash_length; ++i) {
+    ss << std::hex << std::setw(2) << std::setfill('0')
+       << (unsigned int)hash[i];
+  }
+
+  return ss.str();
+}
+
+std::string MD5(const std::string &s) {
+  return message_digest(s, EVP_md5());
+}
+
+std::string SHA_256(const std::string &s) {
+  return message_digest(s, EVP_sha256());
+}
+
+std::string SHA_512(const std::string &s) {
+  return message_digest(s, EVP_sha512());
+}
+#endif
+
+#ifdef _WIN32
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+// NOTE: This code came up with the following stackoverflow post:
+// https://stackoverflow.com/questions/9507184/can-openssl-on-windows-use-the-system-certificate-store
+bool load_system_certs_on_windows(X509_STORE *store) {
+  auto hStore = CertOpenSystemStoreW((HCRYPTPROV_LEGACY)NULL, L"ROOT");
+
+  if (!hStore) { return false; }
+
+  PCCERT_CONTEXT pContext = NULL;
+  while ((pContext = CertEnumCertificatesInStore(hStore, pContext)) !=
+         nullptr) {
+    auto encoded_cert =
+        static_cast<const unsigned char *>(pContext->pbCertEncoded);
+
+    auto x509 = d2i_X509(NULL, &encoded_cert, pContext->cbCertEncoded);
+    if (x509) {
+      X509_STORE_add_cert(store, x509);
+      X509_free(x509);
+    }
+  }
+
+  CertFreeCertificateContext(pContext);
+  CertCloseStore(hStore, 0);
+
+  return true;
+}
+#endif
+
+class WSInit {
+public:
+  WSInit() {
+    WSADATA wsaData;
+    if (WSAStartup(0x0002, &wsaData) == 0) is_valid_ = true;
+  }
+
+  ~WSInit() {
+    if (is_valid_) WSACleanup();
+  }
+
+  bool is_valid_ = false;
+};
+
+static WSInit wsinit_;
+#endif
+
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+std::pair<std::string, std::string> make_digest_authentication_header(
+    const Request &req, const std::map<std::string, std::string> &auth,
+    size_t cnonce_count, const std::string &cnonce, const std::string &username,
+    const std::string &password, bool is_proxy = false) {
+  std::string nc;
+  {
+    std::stringstream ss;
+    ss << std::setfill('0') << std::setw(8) << std::hex << cnonce_count;
+    nc = ss.str();
+  }
+
+  std::string qop;
+  if (auth.find("qop") != auth.end()) {
+    qop = auth.at("qop");
+    if (qop.find("auth-int") != std::string::npos) {
+      qop = "auth-int";
+    } else if (qop.find("auth") != std::string::npos) {
+      qop = "auth";
+    } else {
+      qop.clear();
+    }
+  }
+
+  std::string algo = "MD5";
+  if (auth.find("algorithm") != auth.end()) { algo = auth.at("algorithm"); }
+
+  std::string response;
+  {
+    auto H = algo == "SHA-256"   ? detail::SHA_256
+             : algo == "SHA-512" ? detail::SHA_512
+                                 : detail::MD5;
+
+    auto A1 = username + ":" + auth.at("realm") + ":" + password;
+
+    auto A2 = req.method + ":" + req.path;
+    if (qop == "auth-int") { A2 += ":" + H(req.body); }
+
+    if (qop.empty()) {
+      response = H(H(A1) + ":" + auth.at("nonce") + ":" + H(A2));
+    } else {
+      response = H(H(A1) + ":" + auth.at("nonce") + ":" + nc + ":" + cnonce +
+                   ":" + qop + ":" + H(A2));
+    }
+  }
+
+  auto opaque = (auth.find("opaque") != auth.end()) ? auth.at("opaque") : "";
+
+  auto field = "Digest username=\"" + username + "\", realm=\"" +
+               auth.at("realm") + "\", nonce=\"" + auth.at("nonce") +
+               "\", uri=\"" + req.path + "\", algorithm=" + algo +
+               (qop.empty() ? ", response=\""
+                            : ", qop=" + qop + ", nc=" + nc + ", cnonce=\"" +
+                                  cnonce + "\", response=\"") +
+               response + "\"" +
+               (opaque.empty() ? "" : ", opaque=\"" + opaque + "\"");
+
+  auto key = is_proxy ? "Proxy-Authorization" : "Authorization";
+  return std::make_pair(key, field);
+}
+#endif
+
+bool parse_www_authenticate(const Response &res,
+                                   std::map<std::string, std::string> &auth,
+                                   bool is_proxy) {
+  auto auth_key = is_proxy ? "Proxy-Authenticate" : "WWW-Authenticate";
+  if (res.has_header(auth_key)) {
+    static auto re = std::regex(R"~((?:(?:,\s*)?(.+?)=(?:"(.*?)"|([^,]*))))~");
+    auto s = res.get_header_value(auth_key);
+    auto pos = s.find(' ');
+    if (pos != std::string::npos) {
+      auto type = s.substr(0, pos);
+      if (type == "Basic") {
+        return false;
+      } else if (type == "Digest") {
+        s = s.substr(pos + 1);
+        auto beg = std::sregex_iterator(s.begin(), s.end(), re);
+        for (auto i = beg; i != std::sregex_iterator(); ++i) {
+          auto m = *i;
+          auto key = s.substr(static_cast<size_t>(m.position(1)),
+                              static_cast<size_t>(m.length(1)));
+          auto val = m.length(2) > 0
+                         ? s.substr(static_cast<size_t>(m.position(2)),
+                                    static_cast<size_t>(m.length(2)))
+                         : s.substr(static_cast<size_t>(m.position(3)),
+                                    static_cast<size_t>(m.length(3)));
+          auth[key] = val;
+        }
+        return true;
+      }
+    }
+  }
+  return false;
+}
+
+// https://stackoverflow.com/questions/440133/how-do-i-create-a-random-alpha-numeric-string-in-c/440240#answer-440240
+std::string random_string(size_t length) {
+  auto randchar = []() -> char {
+    const char charset[] = "0123456789"
+                           "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+                           "abcdefghijklmnopqrstuvwxyz";
+    const size_t max_index = (sizeof(charset) - 1);
+    return charset[static_cast<size_t>(std::rand()) % max_index];
+  };
+  std::string str(length, 0);
+  std::generate_n(str.begin(), length, randchar);
+  return str;
+}
+
+class ContentProviderAdapter {
+public:
+  explicit ContentProviderAdapter(
+      ContentProviderWithoutLength &&content_provider)
+      : content_provider_(content_provider) {}
+
+  bool operator()(size_t offset, size_t, DataSink &sink) {
+    return content_provider_(offset, sink);
+  }
+
+private:
+  ContentProviderWithoutLength content_provider_;
+};
+
+} // namespace detail
+
+std::string hosted_at(const std::string &hostname) {
+  std::vector<std::string> addrs;
+  hosted_at(hostname, addrs);
+  if (addrs.empty()) { return std::string(); }
+  return addrs[0];
+}
+
+void hosted_at(const std::string &hostname,
+                      std::vector<std::string> &addrs) {
+  struct addrinfo hints;
+  struct addrinfo *result;
+
+  memset(&hints, 0, sizeof(struct addrinfo));
+  hints.ai_family = AF_UNSPEC;
+  hints.ai_socktype = SOCK_STREAM;
+  hints.ai_protocol = 0;
+
+  if (getaddrinfo(hostname.c_str(), nullptr, &hints, &result)) {
+#if defined __linux__ && !defined __ANDROID__
+    res_init();
+#endif
+    return;
+  }
+
+  for (auto rp = result; rp; rp = rp->ai_next) {
+    const auto &addr =
+        *reinterpret_cast<struct sockaddr_storage *>(rp->ai_addr);
+    std::string ip;
+    int dummy = -1;
+    if (detail::get_remote_ip_and_port(addr, sizeof(struct sockaddr_storage),
+                                       ip, dummy)) {
+      addrs.push_back(ip);
+    }
+  }
+
+  freeaddrinfo(result);
+}
+
+std::string append_query_params(const std::string &path,
+                                       const Params &params) {
+  std::string path_with_query = path;
+  const static std::regex re("[^?]+\\?.*");
+  auto delm = std::regex_match(path, re) ? '&' : '?';
+  path_with_query += delm + detail::params_to_query_str(params);
+  return path_with_query;
+}
+
+// Header utilities
+std::pair<std::string, std::string> make_range_header(Ranges ranges) {
+  std::string field = "bytes=";
+  auto i = 0;
+  for (auto r : ranges) {
+    if (i != 0) { field += ", "; }
+    if (r.first != -1) { field += std::to_string(r.first); }
+    field += '-';
+    if (r.second != -1) { field += std::to_string(r.second); }
+    i++;
+  }
+  return std::make_pair("Range", std::move(field));
+}
+
+std::pair<std::string, std::string>
+make_basic_authentication_header(const std::string &username,
+                                 const std::string &password, bool is_proxy) {
+  auto field = "Basic " + detail::base64_encode(username + ":" + password);
+  auto key = is_proxy ? "Proxy-Authorization" : "Authorization";
+  return std::make_pair(key, std::move(field));
+}
+
+std::pair<std::string, std::string>
+make_bearer_token_authentication_header(const std::string &token,
+                                        bool is_proxy = false) {
+  auto field = "Bearer " + token;
+  auto key = is_proxy ? "Proxy-Authorization" : "Authorization";
+  return std::make_pair(key, std::move(field));
+}
+
+// Request implementation
+bool Request::has_header(const std::string &key) const {
+  return detail::has_header(headers, key);
+}
+
+std::string Request::get_header_value(const std::string &key,
+                                             size_t id) const {
+  return detail::get_header_value(headers, key, id, "");
+}
+
+size_t Request::get_header_value_count(const std::string &key) const {
+  auto r = headers.equal_range(key);
+  return static_cast<size_t>(std::distance(r.first, r.second));
+}
+
+void Request::set_header(const std::string &key,
+                                const std::string &val) {
+  if (!detail::has_crlf(key) && !detail::has_crlf(val)) {
+    headers.emplace(key, val);
+  }
+}
+
+bool Request::has_param(const std::string &key) const {
+  return params.find(key) != params.end();
+}
+
+std::string Request::get_param_value(const std::string &key,
+                                            size_t id) const {
+  auto rng = params.equal_range(key);
+  auto it = rng.first;
+  std::advance(it, static_cast<ssize_t>(id));
+  if (it != rng.second) { return it->second; }
+  return std::string();
+}
+
+size_t Request::get_param_value_count(const std::string &key) const {
+  auto r = params.equal_range(key);
+  return static_cast<size_t>(std::distance(r.first, r.second));
+}
+
+bool Request::is_multipart_form_data() const {
+  const auto &content_type = get_header_value("Content-Type");
+  return !content_type.rfind("multipart/form-data", 0);
+}
+
+bool Request::has_file(const std::string &key) const {
+  return files.find(key) != files.end();
+}
+
+MultipartFormData Request::get_file_value(const std::string &key) const {
+  auto it = files.find(key);
+  if (it != files.end()) { return it->second; }
+  return MultipartFormData();
+}
+
+// Response implementation
+bool Response::has_header(const std::string &key) const {
+  return headers.find(key) != headers.end();
+}
+
+std::string Response::get_header_value(const std::string &key,
+                                              size_t id) const {
+  return detail::get_header_value(headers, key, id, "");
+}
+
+size_t Response::get_header_value_count(const std::string &key) const {
+  auto r = headers.equal_range(key);
+  return static_cast<size_t>(std::distance(r.first, r.second));
+}
+
+void Response::set_header(const std::string &key,
+                                 const std::string &val) {
+  if (!detail::has_crlf(key) && !detail::has_crlf(val)) {
+    headers.emplace(key, val);
+  }
+}
+
+void Response::set_redirect(const std::string &url, int stat) {
+  if (!detail::has_crlf(url)) {
+    set_header("Location", url);
+    if (300 <= stat && stat < 400) {
+      this->status = stat;
+    } else {
+      this->status = 302;
+    }
+  }
+}
+
+void Response::set_content(const char *s, size_t n,
+                                  const std::string &content_type) {
+  body.assign(s, n);
+
+  auto rng = headers.equal_range("Content-Type");
+  headers.erase(rng.first, rng.second);
+  set_header("Content-Type", content_type);
+}
+
+void Response::set_content(const std::string &s,
+                                  const std::string &content_type) {
+  set_content(s.data(), s.size(), content_type);
+}
+
+void Response::set_content_provider(
+    size_t in_length, const std::string &content_type, ContentProvider provider,
+    ContentProviderResourceReleaser resource_releaser) {
+  assert(in_length > 0);
+  set_header("Content-Type", content_type);
+  content_length_ = in_length;
+  content_provider_ = std::move(provider);
+  content_provider_resource_releaser_ = resource_releaser;
+  is_chunked_content_provider_ = false;
+}
+
+void Response::set_content_provider(
+    const std::string &content_type, ContentProviderWithoutLength provider,
+    ContentProviderResourceReleaser resource_releaser) {
+  set_header("Content-Type", content_type);
+  content_length_ = 0;
+  content_provider_ = detail::ContentProviderAdapter(std::move(provider));
+  content_provider_resource_releaser_ = resource_releaser;
+  is_chunked_content_provider_ = false;
+}
+
+void Response::set_chunked_content_provider(
+    const std::string &content_type, ContentProviderWithoutLength provider,
+    ContentProviderResourceReleaser resource_releaser) {
+  set_header("Content-Type", content_type);
+  content_length_ = 0;
+  content_provider_ = detail::ContentProviderAdapter(std::move(provider));
+  content_provider_resource_releaser_ = resource_releaser;
+  is_chunked_content_provider_ = true;
+}
+
+// Result implementation
+bool Result::has_request_header(const std::string &key) const {
+  return request_headers_.find(key) != request_headers_.end();
+}
+
+std::string Result::get_request_header_value(const std::string &key,
+                                                    size_t id) const {
+  return detail::get_header_value(request_headers_, key, id, "");
+}
+
+size_t
+Result::get_request_header_value_count(const std::string &key) const {
+  auto r = request_headers_.equal_range(key);
+  return static_cast<size_t>(std::distance(r.first, r.second));
+}
+
+// Stream implementation
+ssize_t Stream::write(const char *ptr) {
+  return write(ptr, strlen(ptr));
+}
+
+ssize_t Stream::write(const std::string &s) {
+  return write(s.data(), s.size());
+}
+
+namespace detail {
+
+// Socket stream implementation
+SocketStream::SocketStream(socket_t sock, time_t read_timeout_sec,
+                                  time_t read_timeout_usec,
+                                  time_t write_timeout_sec,
+                                  time_t write_timeout_usec)
+    : sock_(sock), read_timeout_sec_(read_timeout_sec),
+      read_timeout_usec_(read_timeout_usec),
+      write_timeout_sec_(write_timeout_sec),
+      write_timeout_usec_(write_timeout_usec), read_buff_(read_buff_size_, 0) {}
+
+SocketStream::~SocketStream() {}
+
+bool SocketStream::is_readable() const {
+  return select_read(sock_, read_timeout_sec_, read_timeout_usec_) > 0;
+}
+
+bool SocketStream::is_writable() const {
+  return select_write(sock_, write_timeout_sec_, write_timeout_usec_) > 0;
+}
+
+ssize_t SocketStream::read(char *ptr, size_t size) {
+#ifdef _WIN32
+  size =
+      (std::min)(size, static_cast<size_t>((std::numeric_limits<int>::max)()));
+#else
+  size = (std::min)(size,
+                    static_cast<size_t>((std::numeric_limits<ssize_t>::max)()));
+#endif
+
+  if (read_buff_off_ < read_buff_content_size_) {
+    auto remaining_size = read_buff_content_size_ - read_buff_off_;
+    if (size <= remaining_size) {
+      memcpy(ptr, read_buff_.data() + read_buff_off_, size);
+      read_buff_off_ += size;
+      return static_cast<ssize_t>(size);
+    } else {
+      memcpy(ptr, read_buff_.data() + read_buff_off_, remaining_size);
+      read_buff_off_ += remaining_size;
+      return static_cast<ssize_t>(remaining_size);
+    }
+  }
+
+  if (!is_readable()) { return -1; }
+
+  read_buff_off_ = 0;
+  read_buff_content_size_ = 0;
+
+  if (size < read_buff_size_) {
+    auto n = read_socket(sock_, read_buff_.data(), read_buff_size_,
+                         CPPHTTPLIB_RECV_FLAGS);
+    if (n <= 0) {
+      return n;
+    } else if (n <= static_cast<ssize_t>(size)) {
+      memcpy(ptr, read_buff_.data(), static_cast<size_t>(n));
+      return n;
+    } else {
+      memcpy(ptr, read_buff_.data(), size);
+      read_buff_off_ = size;
+      read_buff_content_size_ = static_cast<size_t>(n);
+      return static_cast<ssize_t>(size);
+    }
+  } else {
+    return read_socket(sock_, ptr, size, CPPHTTPLIB_RECV_FLAGS);
+  }
+}
+
+ssize_t SocketStream::write(const char *ptr, size_t size) {
+  if (!is_writable()) { return -1; }
+
+#if defined(_WIN32) && !defined(_WIN64)
+  size =
+      (std::min)(size, static_cast<size_t>((std::numeric_limits<int>::max)()));
+#endif
+
+  return send_socket(sock_, ptr, size, CPPHTTPLIB_SEND_FLAGS);
+}
+
+void SocketStream::get_remote_ip_and_port(std::string &ip,
+                                                 int &port) const {
+  return detail::get_remote_ip_and_port(sock_, ip, port);
+}
+
+socket_t SocketStream::socket() const { return sock_; }
+
+// Buffer stream implementation
+bool BufferStream::is_readable() const { return true; }
+
+bool BufferStream::is_writable() const { return true; }
+
+ssize_t BufferStream::read(char *ptr, size_t size) {
+#if defined(_MSC_VER) && _MSC_VER < 1910
+  auto len_read = buffer._Copy_s(ptr, size, size, position);
+#else
+  auto len_read = buffer.copy(ptr, size, position);
+#endif
+  position += static_cast<size_t>(len_read);
+  return static_cast<ssize_t>(len_read);
+}
+
+ssize_t BufferStream::write(const char *ptr, size_t size) {
+  buffer.append(ptr, size);
+  return static_cast<ssize_t>(size);
+}
+
+void BufferStream::get_remote_ip_and_port(std::string & /*ip*/,
+                                                 int & /*port*/) const {}
+
+socket_t BufferStream::socket() const { return 0; }
+
+const std::string &BufferStream::get_buffer() const { return buffer; }
+
+} // namespace detail
+
+// HTTP server implementation
+Server::Server()
+    : new_task_queue(
+          [] { return new ThreadPool(CPPHTTPLIB_THREAD_POOL_COUNT); }),
+      svr_sock_(INVALID_SOCKET), is_running_(false) {
+#ifndef _WIN32
+  signal(SIGPIPE, SIG_IGN);
+#endif
+}
+
+Server::~Server() {}
+
+Server &Server::Get(const std::string &pattern, Handler handler) {
+  get_handlers_.push_back(
+      std::make_pair(std::regex(pattern), std::move(handler)));
+  return *this;
+}
+
+Server &Server::Post(const std::string &pattern, Handler handler) {
+  post_handlers_.push_back(
+      std::make_pair(std::regex(pattern), std::move(handler)));
+  return *this;
+}
+
+Server &Server::Post(const std::string &pattern,
+                            HandlerWithContentReader handler) {
+  post_handlers_for_content_reader_.push_back(
+      std::make_pair(std::regex(pattern), std::move(handler)));
+  return *this;
+}
+
+Server &Server::Put(const std::string &pattern, Handler handler) {
+  put_handlers_.push_back(
+      std::make_pair(std::regex(pattern), std::move(handler)));
+  return *this;
+}
+
+Server &Server::Put(const std::string &pattern,
+                           HandlerWithContentReader handler) {
+  put_handlers_for_content_reader_.push_back(
+      std::make_pair(std::regex(pattern), std::move(handler)));
+  return *this;
+}
+
+Server &Server::Patch(const std::string &pattern, Handler handler) {
+  patch_handlers_.push_back(
+      std::make_pair(std::regex(pattern), std::move(handler)));
+  return *this;
+}
+
+Server &Server::Patch(const std::string &pattern,
+                             HandlerWithContentReader handler) {
+  patch_handlers_for_content_reader_.push_back(
+      std::make_pair(std::regex(pattern), std::move(handler)));
+  return *this;
+}
+
+Server &Server::Delete(const std::string &pattern, Handler handler) {
+  delete_handlers_.push_back(
+      std::make_pair(std::regex(pattern), std::move(handler)));
+  return *this;
+}
+
+Server &Server::Delete(const std::string &pattern,
+                              HandlerWithContentReader handler) {
+  delete_handlers_for_content_reader_.push_back(
+      std::make_pair(std::regex(pattern), std::move(handler)));
+  return *this;
+}
+
+Server &Server::Options(const std::string &pattern, Handler handler) {
+  options_handlers_.push_back(
+      std::make_pair(std::regex(pattern), std::move(handler)));
+  return *this;
+}
+
+bool Server::set_base_dir(const std::string &dir,
+                                 const std::string &mount_point) {
+  return set_mount_point(mount_point, dir);
+}
+
+bool Server::set_mount_point(const std::string &mount_point,
+                                    const std::string &dir, Headers headers) {
+  if (detail::is_dir(dir)) {
+    std::string mnt = !mount_point.empty() ? mount_point : "/";
+    if (!mnt.empty() && mnt[0] == '/') {
+      base_dirs_.push_back({mnt, dir, std::move(headers)});
+      return true;
+    }
+  }
+  return false;
+}
+
+bool Server::remove_mount_point(const std::string &mount_point) {
+  for (auto it = base_dirs_.begin(); it != base_dirs_.end(); ++it) {
+    if (it->mount_point == mount_point) {
+      base_dirs_.erase(it);
+      return true;
+    }
+  }
+  return false;
+}
+
+Server &
+Server::set_file_extension_and_mimetype_mapping(const std::string &ext,
+                                                const std::string &mime) {
+  file_extension_and_mimetype_map_[ext] = mime;
+  return *this;
+}
+
+Server &Server::set_file_request_handler(Handler handler) {
+  file_request_handler_ = std::move(handler);
+  return *this;
+}
+
+Server &Server::set_error_handler(HandlerWithResponse handler) {
+  error_handler_ = std::move(handler);
+  return *this;
+}
+
+Server &Server::set_error_handler(Handler handler) {
+  error_handler_ = [handler](const Request &req, Response &res) {
+    handler(req, res);
+    return HandlerResponse::Handled;
+  };
+  return *this;
+}
+
+Server &Server::set_exception_handler(ExceptionHandler handler) {
+  exception_handler_ = std::move(handler);
+  return *this;
+}
+
+Server &Server::set_pre_routing_handler(HandlerWithResponse handler) {
+  pre_routing_handler_ = std::move(handler);
+  return *this;
+}
+
+Server &Server::set_post_routing_handler(Handler handler) {
+  post_routing_handler_ = std::move(handler);
+  return *this;
+}
+
+Server &Server::set_logger(Logger logger) {
+  logger_ = std::move(logger);
+  return *this;
+}
+
+Server &
+Server::set_expect_100_continue_handler(Expect100ContinueHandler handler) {
+  expect_100_continue_handler_ = std::move(handler);
+
+  return *this;
+}
+
+Server &Server::set_address_family(int family) {
+  address_family_ = family;
+  return *this;
+}
+
+Server &Server::set_tcp_nodelay(bool on) {
+  tcp_nodelay_ = on;
+  return *this;
+}
+
+Server &Server::set_socket_options(SocketOptions socket_options) {
+  socket_options_ = std::move(socket_options);
+  return *this;
+}
+
+Server &Server::set_default_headers(Headers headers) {
+  default_headers_ = std::move(headers);
+  return *this;
+}
+
+Server &Server::set_keep_alive_max_count(size_t count) {
+  keep_alive_max_count_ = count;
+  return *this;
+}
+
+Server &Server::set_keep_alive_timeout(time_t sec) {
+  keep_alive_timeout_sec_ = sec;
+  return *this;
+}
+
+Server &Server::set_read_timeout(time_t sec, time_t usec) {
+  read_timeout_sec_ = sec;
+  read_timeout_usec_ = usec;
+  return *this;
+}
+
+Server &Server::set_write_timeout(time_t sec, time_t usec) {
+  write_timeout_sec_ = sec;
+  write_timeout_usec_ = usec;
+  return *this;
+}
+
+Server &Server::set_idle_interval(time_t sec, time_t usec) {
+  idle_interval_sec_ = sec;
+  idle_interval_usec_ = usec;
+  return *this;
+}
+
+Server &Server::set_payload_max_length(size_t length) {
+  payload_max_length_ = length;
+  return *this;
+}
+
+bool Server::bind_to_port(const std::string &host, int port,
+                                 int socket_flags) {
+  if (bind_internal(host, port, socket_flags) < 0) return false;
+  return true;
+}
+int Server::bind_to_any_port(const std::string &host, int socket_flags) {
+  return bind_internal(host, 0, socket_flags);
+}
+
+bool Server::listen_after_bind() { return listen_internal(); }
+
+bool Server::listen(const std::string &host, int port,
+                           int socket_flags) {
+  return bind_to_port(host, port, socket_flags) && listen_internal();
+}
+
+bool Server::is_running() const { return is_running_; }
+
+void Server::stop() {
+  if (is_running_) {
+    assert(svr_sock_ != INVALID_SOCKET);
+    std::atomic<socket_t> sock(svr_sock_.exchange(INVALID_SOCKET));
+    detail::shutdown_socket(sock);
+    detail::close_socket(sock);
+  }
+}
+
+bool Server::parse_request_line(const char *s, Request &req) {
+  auto len = strlen(s);
+  if (len < 2 || s[len - 2] != '\r' || s[len - 1] != '\n') { return false; }
+  len -= 2;
+
+  {
+    size_t count = 0;
+
+    detail::split(s, s + len, ' ', [&](const char *b, const char *e) {
+      switch (count) {
+      case 0: req.method = std::string(b, e); break;
+      case 1: req.target = std::string(b, e); break;
+      case 2: req.version = std::string(b, e); break;
+      default: break;
+      }
+      count++;
+    });
+
+    if (count != 3) { return false; }
+  }
+
+  static const std::set<std::string> methods{
+      "GET",     "HEAD",    "POST",  "PUT",   "DELETE",
+      "CONNECT", "OPTIONS", "TRACE", "PATCH", "PRI"};
+
+  if (methods.find(req.method) == methods.end()) { return false; }
+
+  if (req.version != "HTTP/1.1" && req.version != "HTTP/1.0") { return false; }
+
+  {
+    // Skip URL fragment
+    for (size_t i = 0; i < req.target.size(); i++) {
+      if (req.target[i] == '#') {
+        req.target.erase(i);
+        break;
+      }
+    }
+
+    size_t count = 0;
+
+    detail::split(req.target.data(), req.target.data() + req.target.size(), '?',
+                  [&](const char *b, const char *e) {
+                    switch (count) {
+                    case 0:
+                      req.path = detail::decode_url(std::string(b, e), false);
+                      break;
+                    case 1: {
+                      if (e - b > 0) {
+                        detail::parse_query_text(std::string(b, e), req.params);
+                      }
+                      break;
+                    }
+                    default: break;
+                    }
+                    count++;
+                  });
+
+    if (count > 2) { return false; }
+  }
+
+  return true;
+}
+
+bool Server::write_response(Stream &strm, bool close_connection,
+                                   const Request &req, Response &res) {
+  return write_response_core(strm, close_connection, req, res, false);
+}
+
+bool Server::write_response_with_content(Stream &strm,
+                                                bool close_connection,
+                                                const Request &req,
+                                                Response &res) {
+  return write_response_core(strm, close_connection, req, res, true);
+}
+
+bool Server::write_response_core(Stream &strm, bool close_connection,
+                                        const Request &req, Response &res,
+                                        bool need_apply_ranges) {
+  assert(res.status != -1);
+
+  if (400 <= res.status && error_handler_ &&
+      error_handler_(req, res) == HandlerResponse::Handled) {
+    need_apply_ranges = true;
+  }
+
+  std::string content_type;
+  std::string boundary;
+  if (need_apply_ranges) { apply_ranges(req, res, content_type, boundary); }
+
+  // Prepare additional headers
+  if (close_connection || req.get_header_value("Connection") == "close") {
+    res.set_header("Connection", "close");
+  } else {
+    std::stringstream ss;
+    ss << "timeout=" << keep_alive_timeout_sec_
+       << ", max=" << keep_alive_max_count_;
+    res.set_header("Keep-Alive", ss.str());
+  }
+
+  if (!res.has_header("Content-Type") &&
+      (!res.body.empty() || res.content_length_ > 0 || res.content_provider_)) {
+    res.set_header("Content-Type", "text/plain");
+  }
+
+  if (!res.has_header("Content-Length") && res.body.empty() &&
+      !res.content_length_ && !res.content_provider_) {
+    res.set_header("Content-Length", "0");
+  }
+
+  if (!res.has_header("Accept-Ranges") && req.method == "HEAD") {
+    res.set_header("Accept-Ranges", "bytes");
+  }
+
+  if (post_routing_handler_) { post_routing_handler_(req, res); }
+
+  // Response line and headers
+  {
+    detail::BufferStream bstrm;
+
+    if (!bstrm.write_format("HTTP/1.1 %d %s\r\n", res.status,
+                            detail::status_message(res.status))) {
+      return false;
+    }
+
+    if (!detail::write_headers(bstrm, res.headers)) { return false; }
+
+    // Flush buffer
+    auto &data = bstrm.get_buffer();
+    detail::write_data(strm, data.data(), data.size());
+  }
+
+  // Body
+  auto ret = true;
+  if (req.method != "HEAD") {
+    if (!res.body.empty()) {
+      if (!detail::write_data(strm, res.body.data(), res.body.size())) {
+        ret = false;
+      }
+    } else if (res.content_provider_) {
+      if (write_content_with_provider(strm, req, res, boundary, content_type)) {
+        res.content_provider_success_ = true;
+      } else {
+        res.content_provider_success_ = false;
+        ret = false;
+      }
+    }
+  }
+
+  // Log
+  if (logger_) { logger_(req, res); }
+
+  return ret;
+}
+
+bool
+Server::write_content_with_provider(Stream &strm, const Request &req,
+                                    Response &res, const std::string &boundary,
+                                    const std::string &content_type) {
+  auto is_shutting_down = [this]() {
+    return this->svr_sock_ == INVALID_SOCKET;
+  };
+
+  if (res.content_length_ > 0) {
+    if (req.ranges.empty()) {
+      return detail::write_content(strm, res.content_provider_, 0,
+                                   res.content_length_, is_shutting_down);
+    } else if (req.ranges.size() == 1) {
+      auto offsets =
+          detail::get_range_offset_and_length(req, res.content_length_, 0);
+      auto offset = offsets.first;
+      auto length = offsets.second;
+      return detail::write_content(strm, res.content_provider_, offset, length,
+                                   is_shutting_down);
+    } else {
+      return detail::write_multipart_ranges_data(
+          strm, req, res, boundary, content_type, is_shutting_down);
+    }
+  } else {
+    if (res.is_chunked_content_provider_) {
+      auto type = detail::encoding_type(req, res);
+
+      std::unique_ptr<detail::compressor> compressor;
+      if (type == detail::EncodingType::Gzip) {
+#ifdef CPPHTTPLIB_ZLIB_SUPPORT
+        compressor = detail::make_unique<detail::gzip_compressor>();
+#endif
+      } else if (type == detail::EncodingType::Brotli) {
+#ifdef CPPHTTPLIB_BROTLI_SUPPORT
+        compressor = detail::make_unique<detail::brotli_compressor>();
+#endif
+      } else {
+        compressor = detail::make_unique<detail::nocompressor>();
+      }
+      assert(compressor != nullptr);
+
+      return detail::write_content_chunked(strm, res.content_provider_,
+                                           is_shutting_down, *compressor);
+    } else {
+      return detail::write_content_without_length(strm, res.content_provider_,
+                                                  is_shutting_down);
+    }
+  }
+}
+
+bool Server::read_content(Stream &strm, Request &req, Response &res) {
+  MultipartFormDataMap::iterator cur;
+  auto file_count = 0;
+  if (read_content_core(
+          strm, req, res,
+          // Regular
+          [&](const char *buf, size_t n) {
+            if (req.body.size() + n > req.body.max_size()) { return false; }
+            req.body.append(buf, n);
+            return true;
+          },
+          // Multipart
+          [&](const MultipartFormData &file) {
+            if (file_count++ == CPPHTTPLIB_MULTIPART_FORM_DATA_FILE_MAX_COUNT) {
+              return false;
+            }
+            cur = req.files.emplace(file.name, file);
+            return true;
+          },
+          [&](const char *buf, size_t n) {
+            auto &content = cur->second.content;
+            if (content.size() + n > content.max_size()) { return false; }
+            content.append(buf, n);
+            return true;
+          })) {
+    const auto &content_type = req.get_header_value("Content-Type");
+    if (!content_type.find("application/x-www-form-urlencoded")) {
+      if (req.body.size() > CPPHTTPLIB_FORM_URL_ENCODED_PAYLOAD_MAX_LENGTH) {
+        res.status = 413; // NOTE: should be 414?
+        return false;
+      }
+      detail::parse_query_text(req.body, req.params);
+    }
+    return true;
+  }
+  return false;
+}
+
+bool Server::read_content_with_content_receiver(
+    Stream &strm, Request &req, Response &res, ContentReceiver receiver,
+    MultipartContentHeader multipart_header,
+    ContentReceiver multipart_receiver) {
+  return read_content_core(strm, req, res, std::move(receiver),
+                           std::move(multipart_header),
+                           std::move(multipart_receiver));
+}
+
+bool Server::read_content_core(Stream &strm, Request &req, Response &res,
+                                      ContentReceiver receiver,
+                                      MultipartContentHeader mulitpart_header,
+                                      ContentReceiver multipart_receiver) {
+  detail::MultipartFormDataParser multipart_form_data_parser;
+  ContentReceiverWithProgress out;
+
+  if (req.is_multipart_form_data()) {
+    const auto &content_type = req.get_header_value("Content-Type");
+    std::string boundary;
+    if (!detail::parse_multipart_boundary(content_type, boundary)) {
+      res.status = 400;
+      return false;
+    }
+
+    multipart_form_data_parser.set_boundary(std::move(boundary));
+    out = [&](const char *buf, size_t n, uint64_t /*off*/, uint64_t /*len*/) {
+      /* For debug
+      size_t pos = 0;
+      while (pos < n) {
+        auto read_size = (std::min)<size_t>(1, n - pos);
+        auto ret = multipart_form_data_parser.parse(
+            buf + pos, read_size, multipart_receiver, mulitpart_header);
+        if (!ret) { return false; }
+        pos += read_size;
+      }
+      return true;
+      */
+      return multipart_form_data_parser.parse(buf, n, multipart_receiver,
+                                              mulitpart_header);
+    };
+  } else {
+    out = [receiver](const char *buf, size_t n, uint64_t /*off*/,
+                     uint64_t /*len*/) { return receiver(buf, n); };
+  }
+
+  if (req.method == "DELETE" && !req.has_header("Content-Length")) {
+    return true;
+  }
+
+  if (!detail::read_content(strm, req, payload_max_length_, res.status, nullptr,
+                            out, true)) {
+    return false;
+  }
+
+  if (req.is_multipart_form_data()) {
+    if (!multipart_form_data_parser.is_valid()) {
+      res.status = 400;
+      return false;
+    }
+  }
+
+  return true;
+}
+
+bool Server::handle_file_request(const Request &req, Response &res,
+                                        bool head) {
+  for (const auto &entry : base_dirs_) {
+    // Prefix match
+    if (!req.path.compare(0, entry.mount_point.size(), entry.mount_point)) {
+      std::string sub_path = "/" + req.path.substr(entry.mount_point.size());
+      if (detail::is_valid_path(sub_path)) {
+        auto path = entry.base_dir + sub_path;
+        if (path.back() == '/') { path += "index.html"; }
+
+        if (detail::is_file(path)) {
+          detail::read_file(path, res.body);
+          auto type =
+              detail::find_content_type(path, file_extension_and_mimetype_map_);
+          if (type) { res.set_header("Content-Type", type); }
+          for (const auto &kv : entry.headers) {
+            res.set_header(kv.first.c_str(), kv.second);
+          }
+          res.status = req.has_header("Range") ? 206 : 200;
+          if (!head && file_request_handler_) {
+            file_request_handler_(req, res);
+          }
+          return true;
+        }
+      }
+    }
+  }
+  return false;
+}
+
+socket_t
+Server::create_server_socket(const std::string &host, int port,
+                             int socket_flags,
+                             SocketOptions socket_options) const {
+  return detail::create_socket(
+      host, std::string(), port, address_family_, socket_flags, tcp_nodelay_,
+      std::move(socket_options),
+      [](socket_t sock, struct addrinfo &ai) -> bool {
+        if (::bind(sock, ai.ai_addr, static_cast<socklen_t>(ai.ai_addrlen))) {
+          return false;
+        }
+        if (::listen(sock, CPPHTTPLIB_LISTEN_BACKLOG)) { return false; }
+        return true;
+      });
+}
+
+int Server::bind_internal(const std::string &host, int port,
+                                 int socket_flags) {
+  if (!is_valid()) { return -1; }
+
+  svr_sock_ = create_server_socket(host, port, socket_flags, socket_options_);
+  if (svr_sock_ == INVALID_SOCKET) { return -1; }
+
+  if (port == 0) {
+    struct sockaddr_storage addr;
+    socklen_t addr_len = sizeof(addr);
+    if (getsockname(svr_sock_, reinterpret_cast<struct sockaddr *>(&addr),
+                    &addr_len) == -1) {
+      return -1;
+    }
+    if (addr.ss_family == AF_INET) {
+      return ntohs(reinterpret_cast<struct sockaddr_in *>(&addr)->sin_port);
+    } else if (addr.ss_family == AF_INET6) {
+      return ntohs(reinterpret_cast<struct sockaddr_in6 *>(&addr)->sin6_port);
+    } else {
+      return -1;
+    }
+  } else {
+    return port;
+  }
+}
+
+bool Server::listen_internal() {
+  auto ret = true;
+  is_running_ = true;
+
+  {
+    std::unique_ptr<TaskQueue> task_queue(new_task_queue());
+
+    while (svr_sock_ != INVALID_SOCKET) {
+#ifndef _WIN32
+      if (idle_interval_sec_ > 0 || idle_interval_usec_ > 0) {
+#endif
+        auto val = detail::select_read(svr_sock_, idle_interval_sec_,
+                                       idle_interval_usec_);
+        if (val == 0) { // Timeout
+          task_queue->on_idle();
+          continue;
+        }
+#ifndef _WIN32
+      }
+#endif
+      socket_t sock = accept(svr_sock_, nullptr, nullptr);
+
+      if (sock == INVALID_SOCKET) {
+        if (errno == EMFILE) {
+          // The per-process limit of open file descriptors has been reached.
+          // Try to accept new connections after a short sleep.
+          std::this_thread::sleep_for(std::chrono::milliseconds(1));
+          continue;
+        }
+        if (svr_sock_ != INVALID_SOCKET) {
+          detail::close_socket(svr_sock_);
+          ret = false;
+        } else {
+          ; // The server socket was closed by user.
+        }
+        break;
+      }
+
+      {
+#ifdef _WIN32
+        auto timeout = static_cast<uint32_t>(read_timeout_sec_ * 1000 +
+                                             read_timeout_usec_ / 1000);
+        setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (char *)&timeout,
+                   sizeof(timeout));
+#else
+        timeval tv;
+        tv.tv_sec = static_cast<long>(read_timeout_sec_);
+        tv.tv_usec = static_cast<decltype(tv.tv_usec)>(read_timeout_usec_);
+        setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (char *)&tv, sizeof(tv));
+#endif
+      }
+      {
+
+#ifdef _WIN32
+        auto timeout = static_cast<uint32_t>(write_timeout_sec_ * 1000 +
+                                             write_timeout_usec_ / 1000);
+        setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO, (char *)&timeout,
+                   sizeof(timeout));
+#else
+        timeval tv;
+        tv.tv_sec = static_cast<long>(write_timeout_sec_);
+        tv.tv_usec = static_cast<decltype(tv.tv_usec)>(write_timeout_usec_);
+        setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO, (char *)&tv, sizeof(tv));
+#endif
+      }
+
+#if __cplusplus > 201703L
+      task_queue->enqueue([=, this]() { process_and_close_socket(sock); });
+#else
+      task_queue->enqueue([=]() { process_and_close_socket(sock); });
+#endif
+    }
+
+    task_queue->shutdown();
+  }
+
+  is_running_ = false;
+  return ret;
+}
+
+bool Server::routing(Request &req, Response &res, Stream &strm) {
+  if (pre_routing_handler_ &&
+      pre_routing_handler_(req, res) == HandlerResponse::Handled) {
+    return true;
+  }
+
+  // File handler
+  bool is_head_request = req.method == "HEAD";
+  if ((req.method == "GET" || is_head_request) &&
+      handle_file_request(req, res, is_head_request)) {
+    return true;
+  }
+
+  if (detail::expect_content(req)) {
+    // Content reader handler
+    {
+      ContentReader reader(
+          [&](ContentReceiver receiver) {
+            return read_content_with_content_receiver(
+                strm, req, res, std::move(receiver), nullptr, nullptr);
+          },
+          [&](MultipartContentHeader header, ContentReceiver receiver) {
+            return read_content_with_content_receiver(strm, req, res, nullptr,
+                                                      std::move(header),
+                                                      std::move(receiver));
+          });
+
+      if (req.method == "POST") {
+        if (dispatch_request_for_content_reader(
+                req, res, std::move(reader),
+                post_handlers_for_content_reader_)) {
+          return true;
+        }
+      } else if (req.method == "PUT") {
+        if (dispatch_request_for_content_reader(
+                req, res, std::move(reader),
+                put_handlers_for_content_reader_)) {
+          return true;
+        }
+      } else if (req.method == "PATCH") {
+        if (dispatch_request_for_content_reader(
+                req, res, std::move(reader),
+                patch_handlers_for_content_reader_)) {
+          return true;
+        }
+      } else if (req.method == "DELETE") {
+        if (dispatch_request_for_content_reader(
+                req, res, std::move(reader),
+                delete_handlers_for_content_reader_)) {
+          return true;
+        }
+      }
+    }
+
+    // Read content into `req.body`
+    if (!read_content(strm, req, res)) { return false; }
+  }
+
+  // Regular handler
+  if (req.method == "GET" || req.method == "HEAD") {
+    return dispatch_request(req, res, get_handlers_);
+  } else if (req.method == "POST") {
+    return dispatch_request(req, res, post_handlers_);
+  } else if (req.method == "PUT") {
+    return dispatch_request(req, res, put_handlers_);
+  } else if (req.method == "DELETE") {
+    return dispatch_request(req, res, delete_handlers_);
+  } else if (req.method == "OPTIONS") {
+    return dispatch_request(req, res, options_handlers_);
+  } else if (req.method == "PATCH") {
+    return dispatch_request(req, res, patch_handlers_);
+  }
+
+  res.status = 400;
+  return false;
+}
+
+bool Server::dispatch_request(Request &req, Response &res,
+                                     const Handlers &handlers) {
+  for (const auto &x : handlers) {
+    const auto &pattern = x.first;
+    const auto &handler = x.second;
+
+    if (std::regex_match(req.path, req.matches, pattern)) {
+      handler(req, res);
+      return true;
+    }
+  }
+  return false;
+}
+
+void Server::apply_ranges(const Request &req, Response &res,
+                                 std::string &content_type,
+                                 std::string &boundary) {
+  if (req.ranges.size() > 1) {
+    boundary = detail::make_multipart_data_boundary();
+
+    auto it = res.headers.find("Content-Type");
+    if (it != res.headers.end()) {
+      content_type = it->second;
+      res.headers.erase(it);
+    }
+
+    res.headers.emplace("Content-Type",
+                        "multipart/byteranges; boundary=" + boundary);
+  }
+
+  auto type = detail::encoding_type(req, res);
+
+  if (res.body.empty()) {
+    if (res.content_length_ > 0) {
+      size_t length = 0;
+      if (req.ranges.empty()) {
+        length = res.content_length_;
+      } else if (req.ranges.size() == 1) {
+        auto offsets =
+            detail::get_range_offset_and_length(req, res.content_length_, 0);
+        auto offset = offsets.first;
+        length = offsets.second;
+        auto content_range = detail::make_content_range_header_field(
+            offset, length, res.content_length_);
+        res.set_header("Content-Range", content_range);
+      } else {
+        length = detail::get_multipart_ranges_data_length(req, res, boundary,
+                                                          content_type);
+      }
+      res.set_header("Content-Length", std::to_string(length));
+    } else {
+      if (res.content_provider_) {
+        if (res.is_chunked_content_provider_) {
+          res.set_header("Transfer-Encoding", "chunked");
+          if (type == detail::EncodingType::Gzip) {
+            res.set_header("Content-Encoding", "gzip");
+          } else if (type == detail::EncodingType::Brotli) {
+            res.set_header("Content-Encoding", "br");
+          }
+        }
+      }
+    }
+  } else {
+    if (req.ranges.empty()) {
+      ;
+    } else if (req.ranges.size() == 1) {
+      auto offsets =
+          detail::get_range_offset_and_length(req, res.body.size(), 0);
+      auto offset = offsets.first;
+      auto length = offsets.second;
+      auto content_range = detail::make_content_range_header_field(
+          offset, length, res.body.size());
+      res.set_header("Content-Range", content_range);
+      if (offset < res.body.size()) {
+        res.body = res.body.substr(offset, length);
+      } else {
+        res.body.clear();
+        res.status = 416;
+      }
+    } else {
+      std::string data;
+      if (detail::make_multipart_ranges_data(req, res, boundary, content_type,
+                                             data)) {
+        res.body.swap(data);
+      } else {
+        res.body.clear();
+        res.status = 416;
+      }
+    }
+
+    if (type != detail::EncodingType::None) {
+      std::unique_ptr<detail::compressor> compressor;
+      std::string content_encoding;
+
+      if (type == detail::EncodingType::Gzip) {
+#ifdef CPPHTTPLIB_ZLIB_SUPPORT
+        compressor = detail::make_unique<detail::gzip_compressor>();
+        content_encoding = "gzip";
+#endif
+      } else if (type == detail::EncodingType::Brotli) {
+#ifdef CPPHTTPLIB_BROTLI_SUPPORT
+        compressor = detail::make_unique<detail::brotli_compressor>();
+        content_encoding = "br";
+#endif
+      }
+
+      if (compressor) {
+        std::string compressed;
+        if (compressor->compress(res.body.data(), res.body.size(), true,
+                                 [&](const char *data, size_t data_len) {
+                                   compressed.append(data, data_len);
+                                   return true;
+                                 })) {
+          res.body.swap(compressed);
+          res.set_header("Content-Encoding", content_encoding);
+        }
+      }
+    }
+
+    auto length = std::to_string(res.body.size());
+    res.set_header("Content-Length", length);
+  }
+}
+
+bool Server::dispatch_request_for_content_reader(
+    Request &req, Response &res, ContentReader content_reader,
+    const HandlersForContentReader &handlers) {
+  for (const auto &x : handlers) {
+    const auto &pattern = x.first;
+    const auto &handler = x.second;
+
+    if (std::regex_match(req.path, req.matches, pattern)) {
+      handler(req, res, content_reader);
+      return true;
+    }
+  }
+  return false;
+}
+
+bool
+Server::process_request(Stream &strm, bool close_connection,
+                        bool &connection_closed,
+                        const std::function<void(Request &)> &setup_request) {
+  std::array<char, 2048> buf{};
+
+  detail::stream_line_reader line_reader(strm, buf.data(), buf.size());
+
+  // Connection has been closed on client
+  if (!line_reader.getline()) { return false; }
+
+  Request req;
+  Response res;
+
+  res.version = "HTTP/1.1";
+
+  for (const auto &header : default_headers_) {
+    if (res.headers.find(header.first) == res.headers.end()) {
+      res.headers.insert(header);
+    }
+  }
+
+#ifdef _WIN32
+  // TODO: Increase FD_SETSIZE statically (libzmq), dynamically (MySQL).
+#else
+#ifndef CPPHTTPLIB_USE_POLL
+  // Socket file descriptor exceeded FD_SETSIZE...
+  if (strm.socket() >= FD_SETSIZE) {
+    Headers dummy;
+    detail::read_headers(strm, dummy);
+    res.status = 500;
+    return write_response(strm, close_connection, req, res);
+  }
+#endif
+#endif
+
+  // Check if the request URI doesn't exceed the limit
+  if (line_reader.size() > CPPHTTPLIB_REQUEST_URI_MAX_LENGTH) {
+    Headers dummy;
+    detail::read_headers(strm, dummy);
+    res.status = 414;
+    return write_response(strm, close_connection, req, res);
+  }
+
+  // Request line and headers
+  if (!parse_request_line(line_reader.ptr(), req) ||
+      !detail::read_headers(strm, req.headers)) {
+    res.status = 400;
+    return write_response(strm, close_connection, req, res);
+  }
+
+  if (req.get_header_value("Connection") == "close") {
+    connection_closed = true;
+  }
+
+  if (req.version == "HTTP/1.0" &&
+      req.get_header_value("Connection") != "Keep-Alive") {
+    connection_closed = true;
+  }
+
+  strm.get_remote_ip_and_port(req.remote_addr, req.remote_port);
+  req.set_header("REMOTE_ADDR", req.remote_addr);
+  req.set_header("REMOTE_PORT", std::to_string(req.remote_port));
+
+  if (req.has_header("Range")) {
+    const auto &range_header_value = req.get_header_value("Range");
+    if (!detail::parse_range_header(range_header_value, req.ranges)) {
+      res.status = 416;
+      return write_response(strm, close_connection, req, res);
+    }
+  }
+
+  if (setup_request) { setup_request(req); }
+
+  if (req.get_header_value("Expect") == "100-continue") {
+    auto status = 100;
+    if (expect_100_continue_handler_) {
+      status = expect_100_continue_handler_(req, res);
+    }
+    switch (status) {
+    case 100:
+    case 417:
+      strm.write_format("HTTP/1.1 %d %s\r\n\r\n", status,
+                        detail::status_message(status));
+      break;
+    default: return write_response(strm, close_connection, req, res);
+    }
+  }
+
+  // Rounting
+  bool routed = false;
+#ifdef CPPHTTPLIB_NO_EXCEPTIONS
+  routed = routing(req, res, strm);
+#else
+  try {
+    routed = routing(req, res, strm);
+  } catch (std::exception &e) {
+    if (exception_handler_) {
+      auto ep = std::current_exception();
+      exception_handler_(req, res, ep);
+      routed = true;
+    } else {
+      res.status = 500;
+      res.set_header("EXCEPTION_WHAT", e.what());
+    }
+  } catch (...) {
+    if (exception_handler_) {
+      auto ep = std::current_exception();
+      exception_handler_(req, res, ep);
+      routed = true;
+    } else {
+      res.status = 500;
+      res.set_header("EXCEPTION_WHAT", "UNKNOWN");
+    }
+  }
+#endif
+
+  if (routed) {
+    if (res.status == -1) { res.status = req.ranges.empty() ? 200 : 206; }
+    return write_response_with_content(strm, close_connection, req, res);
+  } else {
+    if (res.status == -1) { res.status = 404; }
+    return write_response(strm, close_connection, req, res);
+  }
+}
+
+bool Server::is_valid() const { return true; }
+
+bool Server::process_and_close_socket(socket_t sock) {
+  auto ret = detail::process_server_socket(
+      svr_sock_, sock, keep_alive_max_count_, keep_alive_timeout_sec_,
+      read_timeout_sec_, read_timeout_usec_, write_timeout_sec_,
+      write_timeout_usec_,
+      [this](Stream &strm, bool close_connection, bool &connection_closed) {
+        return process_request(strm, close_connection, connection_closed,
+                               nullptr);
+      });
+
+  detail::shutdown_socket(sock);
+  detail::close_socket(sock);
+  return ret;
+}
+
+// HTTP client implementation
+ClientImpl::ClientImpl(const std::string &host)
+    : ClientImpl(host, 80, std::string(), std::string()) {}
+
+ClientImpl::ClientImpl(const std::string &host, int port)
+    : ClientImpl(host, port, std::string(), std::string()) {}
+
+ClientImpl::ClientImpl(const std::string &host, int port,
+                              const std::string &client_cert_path,
+                              const std::string &client_key_path)
+    : host_(host), port_(port),
+      host_and_port_(adjust_host_string(host) + ":" + std::to_string(port)),
+      client_cert_path_(client_cert_path), client_key_path_(client_key_path) {}
+
+ClientImpl::~ClientImpl() {
+  std::lock_guard<std::mutex> guard(socket_mutex_);
+  shutdown_socket(socket_);
+  close_socket(socket_);
+}
+
+bool ClientImpl::is_valid() const { return true; }
+
+void ClientImpl::copy_settings(const ClientImpl &rhs) {
+  client_cert_path_ = rhs.client_cert_path_;
+  client_key_path_ = rhs.client_key_path_;
+  connection_timeout_sec_ = rhs.connection_timeout_sec_;
+  read_timeout_sec_ = rhs.read_timeout_sec_;
+  read_timeout_usec_ = rhs.read_timeout_usec_;
+  write_timeout_sec_ = rhs.write_timeout_sec_;
+  write_timeout_usec_ = rhs.write_timeout_usec_;
+  basic_auth_username_ = rhs.basic_auth_username_;
+  basic_auth_password_ = rhs.basic_auth_password_;
+  bearer_token_auth_token_ = rhs.bearer_token_auth_token_;
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+  digest_auth_username_ = rhs.digest_auth_username_;
+  digest_auth_password_ = rhs.digest_auth_password_;
+#endif
+  keep_alive_ = rhs.keep_alive_;
+  follow_location_ = rhs.follow_location_;
+  url_encode_ = rhs.url_encode_;
+  address_family_ = rhs.address_family_;
+  tcp_nodelay_ = rhs.tcp_nodelay_;
+  socket_options_ = rhs.socket_options_;
+  compress_ = rhs.compress_;
+  decompress_ = rhs.decompress_;
+  interface_ = rhs.interface_;
+  proxy_host_ = rhs.proxy_host_;
+  proxy_port_ = rhs.proxy_port_;
+  proxy_basic_auth_username_ = rhs.proxy_basic_auth_username_;
+  proxy_basic_auth_password_ = rhs.proxy_basic_auth_password_;
+  proxy_bearer_token_auth_token_ = rhs.proxy_bearer_token_auth_token_;
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+  proxy_digest_auth_username_ = rhs.proxy_digest_auth_username_;
+  proxy_digest_auth_password_ = rhs.proxy_digest_auth_password_;
+#endif
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+  ca_cert_file_path_ = rhs.ca_cert_file_path_;
+  ca_cert_dir_path_ = rhs.ca_cert_dir_path_;
+  ca_cert_store_ = rhs.ca_cert_store_;
+#endif
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+  server_certificate_verification_ = rhs.server_certificate_verification_;
+#endif
+  logger_ = rhs.logger_;
+}
+
+socket_t ClientImpl::create_client_socket(Error &error) const {
+  if (!proxy_host_.empty() && proxy_port_ != -1) {
+    return detail::create_client_socket(
+        proxy_host_, std::string(), proxy_port_, address_family_, tcp_nodelay_,
+        socket_options_, connection_timeout_sec_, connection_timeout_usec_,
+        read_timeout_sec_, read_timeout_usec_, write_timeout_sec_,
+        write_timeout_usec_, interface_, error);
+  }
+
+  // Check is custom IP specified for host_
+  std::string ip;
+  auto it = addr_map_.find(host_);
+  if (it != addr_map_.end()) ip = it->second;
+
+  return detail::create_client_socket(
+      host_, ip, port_, address_family_, tcp_nodelay_, socket_options_,
+      connection_timeout_sec_, connection_timeout_usec_, read_timeout_sec_,
+      read_timeout_usec_, write_timeout_sec_, write_timeout_usec_, interface_,
+      error);
+}
+
+bool ClientImpl::create_and_connect_socket(Socket &socket,
+                                                  Error &error) {
+  auto sock = create_client_socket(error);
+  if (sock == INVALID_SOCKET) { return false; }
+  socket.sock = sock;
+  return true;
+}
+
+void ClientImpl::shutdown_ssl(Socket & /*socket*/,
+                                     bool /*shutdown_gracefully*/) {
+  // If there are any requests in flight from threads other than us, then it's
+  // a thread-unsafe race because individual ssl* objects are not thread-safe.
+  assert(socket_requests_in_flight_ == 0 ||
+         socket_requests_are_from_thread_ == std::this_thread::get_id());
+}
+
+void ClientImpl::shutdown_socket(Socket &socket) {
+  if (socket.sock == INVALID_SOCKET) { return; }
+  detail::shutdown_socket(socket.sock);
+}
+
+void ClientImpl::close_socket(Socket &socket) {
+  // If there are requests in flight in another thread, usually closing
+  // the socket will be fine and they will simply receive an error when
+  // using the closed socket, but it is still a bug since rarely the OS
+  // may reassign the socket id to be used for a new socket, and then
+  // suddenly they will be operating on a live socket that is different
+  // than the one they intended!
+  assert(socket_requests_in_flight_ == 0 ||
+         socket_requests_are_from_thread_ == std::this_thread::get_id());
+
+  // It is also a bug if this happens while SSL is still active
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+  assert(socket.ssl == nullptr);
+#endif
+  if (socket.sock == INVALID_SOCKET) { return; }
+  detail::close_socket(socket.sock);
+  socket.sock = INVALID_SOCKET;
+}
+
+bool ClientImpl::read_response_line(Stream &strm, const Request &req,
+                                           Response &res) {
+  std::array<char, 2048> buf{};
+
+  detail::stream_line_reader line_reader(strm, buf.data(), buf.size());
+
+  if (!line_reader.getline()) { return false; }
+
+#ifdef CPPHTTPLIB_ALLOW_LF_AS_LINE_TERMINATOR
+  const static std::regex re("(HTTP/1\\.[01]) (\\d{3})(?: (.*?))?\r\n");
+#else
+  const static std::regex re("(HTTP/1\\.[01]) (\\d{3})(?: (.*?))?\r?\n");
+#endif
+
+  std::cmatch m;
+  if (!std::regex_match(line_reader.ptr(), m, re)) {
+    return req.method == "CONNECT";
+  }
+  res.version = std::string(m[1]);
+  res.status = std::stoi(std::string(m[2]));
+  res.reason = std::string(m[3]);
+
+  // Ignore '100 Continue'
+  while (res.status == 100) {
+    if (!line_reader.getline()) { return false; } // CRLF
+    if (!line_reader.getline()) { return false; } // next response line
+
+    if (!std::regex_match(line_reader.ptr(), m, re)) { return false; }
+    res.version = std::string(m[1]);
+    res.status = std::stoi(std::string(m[2]));
+    res.reason = std::string(m[3]);
+  }
+
+  return true;
+}
+
+bool ClientImpl::send(Request &req, Response &res, Error &error) {
+  std::lock_guard<std::recursive_mutex> request_mutex_guard(request_mutex_);
+
+  {
+    std::lock_guard<std::mutex> guard(socket_mutex_);
+
+    // Set this to false immediately - if it ever gets set to true by the end of
+    // the request, we know another thread instructed us to close the socket.
+    socket_should_be_closed_when_request_is_done_ = false;
+
+    auto is_alive = false;
+    if (socket_.is_open()) {
+      is_alive = detail::is_socket_alive(socket_.sock);
+      if (!is_alive) {
+        // Attempt to avoid sigpipe by shutting down nongracefully if it seems
+        // like the other side has already closed the connection Also, there
+        // cannot be any requests in flight from other threads since we locked
+        // request_mutex_, so safe to close everything immediately
+        const bool shutdown_gracefully = false;
+        shutdown_ssl(socket_, shutdown_gracefully);
+        shutdown_socket(socket_);
+        close_socket(socket_);
+      }
+    }
+
+    if (!is_alive) {
+      if (!create_and_connect_socket(socket_, error)) { return false; }
+
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+      // TODO: refactoring
+      if (is_ssl()) {
+        auto &scli = static_cast<SSLClient &>(*this);
+        if (!proxy_host_.empty() && proxy_port_ != -1) {
+          bool success = false;
+          if (!scli.connect_with_proxy(socket_, res, success, error)) {
+            return success;
+          }
+        }
+
+        if (!scli.initialize_ssl(socket_, error)) { return false; }
+      }
+#endif
+    }
+
+    // Mark the current socket as being in use so that it cannot be closed by
+    // anyone else while this request is ongoing, even though we will be
+    // releasing the mutex.
+    if (socket_requests_in_flight_ > 1) {
+      assert(socket_requests_are_from_thread_ == std::this_thread::get_id());
+    }
+    socket_requests_in_flight_ += 1;
+    socket_requests_are_from_thread_ = std::this_thread::get_id();
+  }
+
+  for (const auto &header : default_headers_) {
+    if (req.headers.find(header.first) == req.headers.end()) {
+      req.headers.insert(header);
+    }
+  }
+
+  auto close_connection = !keep_alive_;
+  auto ret = process_socket(socket_, [&](Stream &strm) {
+    return handle_request(strm, req, res, close_connection, error);
+  });
+
+  // Briefly lock mutex in order to mark that a request is no longer ongoing
+  {
+    std::lock_guard<std::mutex> guard(socket_mutex_);
+    socket_requests_in_flight_ -= 1;
+    if (socket_requests_in_flight_ <= 0) {
+      assert(socket_requests_in_flight_ == 0);
+      socket_requests_are_from_thread_ = std::thread::id();
+    }
+
+    if (socket_should_be_closed_when_request_is_done_ || close_connection ||
+        !ret) {
+      shutdown_ssl(socket_, true);
+      shutdown_socket(socket_);
+      close_socket(socket_);
+    }
+  }
+
+  if (!ret) {
+    if (error == Error::Success) { error = Error::Unknown; }
+  }
+
+  return ret;
+}
+
+Result ClientImpl::send(const Request &req) {
+  auto req2 = req;
+  return send_(std::move(req2));
+}
+
+Result ClientImpl::send_(Request &&req) {
+  auto res = detail::make_unique<Response>();
+  auto error = Error::Success;
+  auto ret = send(req, *res, error);
+  return Result{ret ? std::move(res) : nullptr, error, std::move(req.headers)};
+}
+
+bool ClientImpl::handle_request(Stream &strm, Request &req,
+                                       Response &res, bool close_connection,
+                                       Error &error) {
+  if (req.path.empty()) {
+    error = Error::Connection;
+    return false;
+  }
+
+  auto req_save = req;
+
+  bool ret;
+
+  if (!is_ssl() && !proxy_host_.empty() && proxy_port_ != -1) {
+    auto req2 = req;
+    req2.path = "http://" + host_and_port_ + req.path;
+    ret = process_request(strm, req2, res, close_connection, error);
+    req = req2;
+    req.path = req_save.path;
+  } else {
+    ret = process_request(strm, req, res, close_connection, error);
+  }
+
+  if (!ret) { return false; }
+
+  if (300 < res.status && res.status < 400 && follow_location_) {
+    req = req_save;
+    ret = redirect(req, res, error);
+  }
+
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+  if ((res.status == 401 || res.status == 407) &&
+      req.authorization_count_ < 5) {
+    auto is_proxy = res.status == 407;
+    const auto &username =
+        is_proxy ? proxy_digest_auth_username_ : digest_auth_username_;
+    const auto &password =
+        is_proxy ? proxy_digest_auth_password_ : digest_auth_password_;
+
+    if (!username.empty() && !password.empty()) {
+      std::map<std::string, std::string> auth;
+      if (detail::parse_www_authenticate(res, auth, is_proxy)) {
+        Request new_req = req;
+        new_req.authorization_count_ += 1;
+        new_req.headers.erase(is_proxy ? "Proxy-Authorization"
+                                       : "Authorization");
+        new_req.headers.insert(detail::make_digest_authentication_header(
+            req, auth, new_req.authorization_count_, detail::random_string(10),
+            username, password, is_proxy));
+
+        Response new_res;
+
+        ret = send(new_req, new_res, error);
+        if (ret) { res = new_res; }
+      }
+    }
+  }
+#endif
+
+  return ret;
+}
+
+bool ClientImpl::redirect(Request &req, Response &res, Error &error) {
+  if (req.redirect_count_ == 0) {
+    error = Error::ExceedRedirectCount;
+    return false;
+  }
+
+  auto location = detail::decode_url(res.get_header_value("location"), true);
+  if (location.empty()) { return false; }
+
+  const static std::regex re(
+      R"((?:(https?):)?(?://(?:\[([\d:]+)\]|([^:/?#]+))(?::(\d+))?)?([^?#]*(?:\?[^#]*)?)(?:#.*)?)");
+
+  std::smatch m;
+  if (!std::regex_match(location, m, re)) { return false; }
+
+  auto scheme = is_ssl() ? "https" : "http";
+
+  auto next_scheme = m[1].str();
+  auto next_host = m[2].str();
+  if (next_host.empty()) { next_host = m[3].str(); }
+  auto port_str = m[4].str();
+  auto next_path = m[5].str();
+
+  auto next_port = port_;
+  if (!port_str.empty()) {
+    next_port = std::stoi(port_str);
+  } else if (!next_scheme.empty()) {
+    next_port = next_scheme == "https" ? 443 : 80;
+  }
+
+  if (next_scheme.empty()) { next_scheme = scheme; }
+  if (next_host.empty()) { next_host = host_; }
+  if (next_path.empty()) { next_path = "/"; }
+
+  if (next_scheme == scheme && next_host == host_ && next_port == port_) {
+    return detail::redirect(*this, req, res, next_path, location, error);
+  } else {
+    if (next_scheme == "https") {
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+      SSLClient cli(next_host.c_str(), next_port);
+      cli.copy_settings(*this);
+      if (ca_cert_store_) { cli.set_ca_cert_store(ca_cert_store_); }
+      return detail::redirect(cli, req, res, next_path, location, error);
+#else
+      return false;
+#endif
+    } else {
+      ClientImpl cli(next_host.c_str(), next_port);
+      cli.copy_settings(*this);
+      return detail::redirect(cli, req, res, next_path, location, error);
+    }
+  }
+}
+
+bool ClientImpl::write_content_with_provider(Stream &strm,
+                                                    const Request &req,
+                                                    Error &error) {
+  auto is_shutting_down = []() { return false; };
+
+  if (req.is_chunked_content_provider_) {
+    // TODO: Brotli suport
+    std::unique_ptr<detail::compressor> compressor;
+#ifdef CPPHTTPLIB_ZLIB_SUPPORT
+    if (compress_) {
+      compressor = detail::make_unique<detail::gzip_compressor>();
+    } else
+#endif
+    {
+      compressor = detail::make_unique<detail::nocompressor>();
+    }
+
+    return detail::write_content_chunked(strm, req.content_provider_,
+                                         is_shutting_down, *compressor, error);
+  } else {
+    return detail::write_content(strm, req.content_provider_, 0,
+                                 req.content_length_, is_shutting_down, error);
+  }
+} // namespace httplib
+
+bool ClientImpl::write_request(Stream &strm, Request &req,
+                                      bool close_connection, Error &error) {
+  // Prepare additional headers
+  if (close_connection) {
+    if (!req.has_header("Connection")) {
+      req.headers.emplace("Connection", "close");
+    }
+  }
+
+  if (!req.has_header("Host")) {
+    if (is_ssl()) {
+      if (port_ == 443) {
+        req.headers.emplace("Host", host_);
+      } else {
+        req.headers.emplace("Host", host_and_port_);
+      }
+    } else {
+      if (port_ == 80) {
+        req.headers.emplace("Host", host_);
+      } else {
+        req.headers.emplace("Host", host_and_port_);
+      }
+    }
+  }
+
+  if (!req.has_header("Accept")) { req.headers.emplace("Accept", "*/*"); }
+
+#ifndef CPPHTTPLIB_NO_DEFAULT_USER_AGENT
+  if (!req.has_header("User-Agent")) {
+    auto agent = std::string("cpp-httplib/") + CPPHTTPLIB_VERSION;
+    req.headers.emplace("User-Agent", agent);
+  }
+#endif
+
+  if (req.body.empty()) {
+    if (req.content_provider_) {
+      if (!req.is_chunked_content_provider_) {
+        if (!req.has_header("Content-Length")) {
+          auto length = std::to_string(req.content_length_);
+          req.headers.emplace("Content-Length", length);
+        }
+      }
+    } else {
+      if (req.method == "POST" || req.method == "PUT" ||
+          req.method == "PATCH") {
+        req.headers.emplace("Content-Length", "0");
+      }
+    }
+  } else {
+    if (!req.has_header("Content-Type")) {
+      req.headers.emplace("Content-Type", "text/plain");
+    }
+
+    if (!req.has_header("Content-Length")) {
+      auto length = std::to_string(req.body.size());
+      req.headers.emplace("Content-Length", length);
+    }
+  }
+
+  if (!basic_auth_password_.empty() || !basic_auth_username_.empty()) {
+    if (!req.has_header("Authorization")) {
+      req.headers.insert(make_basic_authentication_header(
+          basic_auth_username_, basic_auth_password_, false));
+    }
+  }
+
+  if (!proxy_basic_auth_username_.empty() &&
+      !proxy_basic_auth_password_.empty()) {
+    if (!req.has_header("Proxy-Authorization")) {
+      req.headers.insert(make_basic_authentication_header(
+          proxy_basic_auth_username_, proxy_basic_auth_password_, true));
+    }
+  }
+
+  if (!bearer_token_auth_token_.empty()) {
+    if (!req.has_header("Authorization")) {
+      req.headers.insert(make_bearer_token_authentication_header(
+          bearer_token_auth_token_, false));
+    }
+  }
+
+  if (!proxy_bearer_token_auth_token_.empty()) {
+    if (!req.has_header("Proxy-Authorization")) {
+      req.headers.insert(make_bearer_token_authentication_header(
+          proxy_bearer_token_auth_token_, true));
+    }
+  }
+
+  // Request line and headers
+  {
+    detail::BufferStream bstrm;
+
+    const auto &path = url_encode_ ? detail::encode_url(req.path) : req.path;
+    bstrm.write_format("%s %s HTTP/1.1\r\n", req.method.c_str(), path.c_str());
+
+    detail::write_headers(bstrm, req.headers);
+
+    // Flush buffer
+    auto &data = bstrm.get_buffer();
+    if (!detail::write_data(strm, data.data(), data.size())) {
+      error = Error::Write;
+      return false;
+    }
+  }
+
+  // Body
+  if (req.body.empty()) {
+    return write_content_with_provider(strm, req, error);
+  }
+
+  if (!detail::write_data(strm, req.body.data(), req.body.size())) {
+    error = Error::Write;
+    return false;
+  }
+
+  return true;
+}
+
+std::unique_ptr<Response> ClientImpl::send_with_content_provider(
+    Request &req, const char *body, size_t content_length,
+    ContentProvider content_provider,
+    ContentProviderWithoutLength content_provider_without_length,
+    const std::string &content_type, Error &error) {
+  if (!content_type.empty()) {
+    req.headers.emplace("Content-Type", content_type);
+  }
+
+#ifdef CPPHTTPLIB_ZLIB_SUPPORT
+  if (compress_) { req.headers.emplace("Content-Encoding", "gzip"); }
+#endif
+
+#ifdef CPPHTTPLIB_ZLIB_SUPPORT
+  if (compress_ && !content_provider_without_length) {
+    // TODO: Brotli support
+    detail::gzip_compressor compressor;
+
+    if (content_provider) {
+      auto ok = true;
+      size_t offset = 0;
+      DataSink data_sink;
+
+      data_sink.write = [&](const char *data, size_t data_len) -> bool {
+        if (ok) {
+          auto last = offset + data_len == content_length;
+
+          auto ret = compressor.compress(
+              data, data_len, last,
+              [&](const char *compressed_data, size_t compressed_data_len) {
+                req.body.append(compressed_data, compressed_data_len);
+                return true;
+              });
+
+          if (ret) {
+            offset += data_len;
+          } else {
+            ok = false;
+          }
+        }
+        return ok;
+      };
+
+      data_sink.is_writable = [&](void) { return ok && true; };
+
+      while (ok && offset < content_length) {
+        if (!content_provider(offset, content_length - offset, data_sink)) {
+          error = Error::Canceled;
+          return nullptr;
+        }
+      }
+    } else {
+      if (!compressor.compress(body, content_length, true,
+                               [&](const char *data, size_t data_len) {
+                                 req.body.append(data, data_len);
+                                 return true;
+                               })) {
+        error = Error::Compression;
+        return nullptr;
+      }
+    }
+  } else
+#endif
+  {
+    if (content_provider) {
+      req.content_length_ = content_length;
+      req.content_provider_ = std::move(content_provider);
+      req.is_chunked_content_provider_ = false;
+    } else if (content_provider_without_length) {
+      req.content_length_ = 0;
+      req.content_provider_ = detail::ContentProviderAdapter(
+          std::move(content_provider_without_length));
+      req.is_chunked_content_provider_ = true;
+      req.headers.emplace("Transfer-Encoding", "chunked");
+    } else {
+      req.body.assign(body, content_length);
+      ;
+    }
+  }
+
+  auto res = detail::make_unique<Response>();
+  return send(req, *res, error) ? std::move(res) : nullptr;
+}
+
+Result ClientImpl::send_with_content_provider(
+    const std::string &method, const std::string &path, const Headers &headers,
+    const char *body, size_t content_length, ContentProvider content_provider,
+    ContentProviderWithoutLength content_provider_without_length,
+    const std::string &content_type) {
+  Request req;
+  req.method = method;
+  req.headers = headers;
+  req.path = path;
+
+  auto error = Error::Success;
+
+  auto res = send_with_content_provider(
+      req, body, content_length, std::move(content_provider),
+      std::move(content_provider_without_length), content_type, error);
+
+  return Result{std::move(res), error, std::move(req.headers)};
+}
+
+std::string
+ClientImpl::adjust_host_string(const std::string &host) const {
+  if (host.find(':') != std::string::npos) { return "[" + host + "]"; }
+  return host;
+}
+
+bool ClientImpl::process_request(Stream &strm, Request &req,
+                                        Response &res, bool close_connection,
+                                        Error &error) {
+  // Send request
+  if (!write_request(strm, req, close_connection, error)) { return false; }
+
+  // Receive response and headers
+  if (!read_response_line(strm, req, res) ||
+      !detail::read_headers(strm, res.headers)) {
+    error = Error::Read;
+    return false;
+  }
+
+  // Body
+  if ((res.status != 204) && req.method != "HEAD" && req.method != "CONNECT") {
+    auto redirect = 300 < res.status && res.status < 400 && follow_location_;
+
+    if (req.response_handler && !redirect) {
+      if (!req.response_handler(res)) {
+        error = Error::Canceled;
+        return false;
+      }
+    }
+
+    auto out =
+        req.content_receiver
+            ? static_cast<ContentReceiverWithProgress>(
+                  [&](const char *buf, size_t n, uint64_t off, uint64_t len) {
+                    if (redirect) { return true; }
+                    auto ret = req.content_receiver(buf, n, off, len);
+                    if (!ret) { error = Error::Canceled; }
+                    return ret;
+                  })
+            : static_cast<ContentReceiverWithProgress>(
+                  [&](const char *buf, size_t n, uint64_t /*off*/,
+                      uint64_t /*len*/) {
+                    if (res.body.size() + n > res.body.max_size()) {
+                      return false;
+                    }
+                    res.body.append(buf, n);
+                    return true;
+                  });
+
+    auto progress = [&](uint64_t current, uint64_t total) {
+      if (!req.progress || redirect) { return true; }
+      auto ret = req.progress(current, total);
+      if (!ret) { error = Error::Canceled; }
+      return ret;
+    };
+
+    int dummy_status;
+    if (!detail::read_content(strm, res, (std::numeric_limits<size_t>::max)(),
+                              dummy_status, std::move(progress), std::move(out),
+                              decompress_)) {
+      if (error != Error::Canceled) { error = Error::Read; }
+      return false;
+    }
+  }
+
+  if (res.get_header_value("Connection") == "close" ||
+      (res.version == "HTTP/1.0" && res.reason != "Connection established")) {
+    // TODO this requires a not-entirely-obvious chain of calls to be correct
+    // for this to be safe. Maybe a code refactor (such as moving this out to
+    // the send function and getting rid of the recursiveness of the mutex)
+    // could make this more obvious.
+
+    // This is safe to call because process_request is only called by
+    // handle_request which is only called by send, which locks the request
+    // mutex during the process. It would be a bug to call it from a different
+    // thread since it's a thread-safety issue to do these things to the socket
+    // if another thread is using the socket.
+    std::lock_guard<std::mutex> guard(socket_mutex_);
+    shutdown_ssl(socket_, true);
+    shutdown_socket(socket_);
+    close_socket(socket_);
+  }
+
+  // Log
+  if (logger_) { logger_(req, res); }
+
+  return true;
+}
+
+bool
+ClientImpl::process_socket(const Socket &socket,
+                           std::function<bool(Stream &strm)> callback) {
+  return detail::process_client_socket(
+      socket.sock, read_timeout_sec_, read_timeout_usec_, write_timeout_sec_,
+      write_timeout_usec_, std::move(callback));
+}
+
+bool ClientImpl::is_ssl() const { return false; }
+
+Result ClientImpl::Get(const std::string &path) {
+  return Get(path, Headers(), Progress());
+}
+
+Result ClientImpl::Get(const std::string &path, Progress progress) {
+  return Get(path, Headers(), std::move(progress));
+}
+
+Result ClientImpl::Get(const std::string &path, const Headers &headers) {
+  return Get(path, headers, Progress());
+}
+
+Result ClientImpl::Get(const std::string &path, const Headers &headers,
+                              Progress progress) {
+  Request req;
+  req.method = "GET";
+  req.path = path;
+  req.headers = headers;
+  req.progress = std::move(progress);
+
+  return send_(std::move(req));
+}
+
+Result ClientImpl::Get(const std::string &path,
+                              ContentReceiver content_receiver) {
+  return Get(path, Headers(), nullptr, std::move(content_receiver), nullptr);
+}
+
+Result ClientImpl::Get(const std::string &path,
+                              ContentReceiver content_receiver,
+                              Progress progress) {
+  return Get(path, Headers(), nullptr, std::move(content_receiver),
+             std::move(progress));
+}
+
+Result ClientImpl::Get(const std::string &path, const Headers &headers,
+                              ContentReceiver content_receiver) {
+  return Get(path, headers, nullptr, std::move(content_receiver), nullptr);
+}
+
+Result ClientImpl::Get(const std::string &path, const Headers &headers,
+                              ContentReceiver content_receiver,
+                              Progress progress) {
+  return Get(path, headers, nullptr, std::move(content_receiver),
+             std::move(progress));
+}
+
+Result ClientImpl::Get(const std::string &path,
+                              ResponseHandler response_handler,
+                              ContentReceiver content_receiver) {
+  return Get(path, Headers(), std::move(response_handler),
+             std::move(content_receiver), nullptr);
+}
+
+Result ClientImpl::Get(const std::string &path, const Headers &headers,
+                              ResponseHandler response_handler,
+                              ContentReceiver content_receiver) {
+  return Get(path, headers, std::move(response_handler),
+             std::move(content_receiver), nullptr);
+}
+
+Result ClientImpl::Get(const std::string &path,
+                              ResponseHandler response_handler,
+                              ContentReceiver content_receiver,
+                              Progress progress) {
+  return Get(path, Headers(), std::move(response_handler),
+             std::move(content_receiver), std::move(progress));
+}
+
+Result ClientImpl::Get(const std::string &path, const Headers &headers,
+                              ResponseHandler response_handler,
+                              ContentReceiver content_receiver,
+                              Progress progress) {
+  Request req;
+  req.method = "GET";
+  req.path = path;
+  req.headers = headers;
+  req.response_handler = std::move(response_handler);
+  req.content_receiver =
+      [content_receiver](const char *data, size_t data_length,
+                         uint64_t /*offset*/, uint64_t /*total_length*/) {
+        return content_receiver(data, data_length);
+      };
+  req.progress = std::move(progress);
+
+  return send_(std::move(req));
+}
+
+Result ClientImpl::Get(const std::string &path, const Params &params,
+                              const Headers &headers, Progress progress) {
+  if (params.empty()) { return Get(path, headers); }
+
+  std::string path_with_query = append_query_params(path, params);
+  return Get(path_with_query.c_str(), headers, progress);
+}
+
+Result ClientImpl::Get(const std::string &path, const Params &params,
+                              const Headers &headers,
+                              ContentReceiver content_receiver,
+                              Progress progress) {
+  return Get(path, params, headers, nullptr, content_receiver, progress);
+}
+
+Result ClientImpl::Get(const std::string &path, const Params &params,
+                              const Headers &headers,
+                              ResponseHandler response_handler,
+                              ContentReceiver content_receiver,
+                              Progress progress) {
+  if (params.empty()) {
+    return Get(path, headers, response_handler, content_receiver, progress);
+  }
+
+  std::string path_with_query = append_query_params(path, params);
+  return Get(path_with_query.c_str(), headers, response_handler,
+             content_receiver, progress);
+}
+
+Result ClientImpl::Head(const std::string &path) {
+  return Head(path, Headers());
+}
+
+Result ClientImpl::Head(const std::string &path,
+                               const Headers &headers) {
+  Request req;
+  req.method = "HEAD";
+  req.headers = headers;
+  req.path = path;
+
+  return send_(std::move(req));
+}
+
+Result ClientImpl::Post(const std::string &path) {
+  return Post(path, std::string(), std::string());
+}
+
+Result ClientImpl::Post(const std::string &path, const char *body,
+                               size_t content_length,
+                               const std::string &content_type) {
+  return Post(path, Headers(), body, content_length, content_type);
+}
+
+Result ClientImpl::Post(const std::string &path, const Headers &headers,
+                               const char *body, size_t content_length,
+                               const std::string &content_type) {
+  return send_with_content_provider("POST", path, headers, body, content_length,
+                                    nullptr, nullptr, content_type);
+}
+
+Result ClientImpl::Post(const std::string &path, const std::string &body,
+                               const std::string &content_type) {
+  return Post(path, Headers(), body, content_type);
+}
+
+Result ClientImpl::Post(const std::string &path, const Headers &headers,
+                               const std::string &body,
+                               const std::string &content_type) {
+  return send_with_content_provider("POST", path, headers, body.data(),
+                                    body.size(), nullptr, nullptr,
+                                    content_type);
+}
+
+Result ClientImpl::Post(const std::string &path, const Params &params) {
+  return Post(path, Headers(), params);
+}
+
+Result ClientImpl::Post(const std::string &path, size_t content_length,
+                               ContentProvider content_provider,
+                               const std::string &content_type) {
+  return Post(path, Headers(), content_length, std::move(content_provider),
+              content_type);
+}
+
+Result ClientImpl::Post(const std::string &path,
+                               ContentProviderWithoutLength content_provider,
+                               const std::string &content_type) {
+  return Post(path, Headers(), std::move(content_provider), content_type);
+}
+
+Result ClientImpl::Post(const std::string &path, const Headers &headers,
+                               size_t content_length,
+                               ContentProvider content_provider,
+                               const std::string &content_type) {
+  return send_with_content_provider("POST", path, headers, nullptr,
+                                    content_length, std::move(content_provider),
+                                    nullptr, content_type);
+}
+
+Result ClientImpl::Post(const std::string &path, const Headers &headers,
+                               ContentProviderWithoutLength content_provider,
+                               const std::string &content_type) {
+  return send_with_content_provider("POST", path, headers, nullptr, 0, nullptr,
+                                    std::move(content_provider), content_type);
+}
+
+Result ClientImpl::Post(const std::string &path, const Headers &headers,
+                               const Params &params) {
+  auto query = detail::params_to_query_str(params);
+  return Post(path, headers, query, "application/x-www-form-urlencoded");
+}
+
+Result ClientImpl::Post(const std::string &path,
+                               const MultipartFormDataItems &items) {
+  return Post(path, Headers(), items);
+}
+
+Result ClientImpl::Post(const std::string &path, const Headers &headers,
+                               const MultipartFormDataItems &items) {
+  std::string content_type;
+  const auto &body = detail::serialize_multipart_formdata(
+      items, detail::make_multipart_data_boundary(), content_type);
+  return Post(path, headers, body, content_type.c_str());
+}
+
+Result ClientImpl::Post(const std::string &path, const Headers &headers,
+                               const MultipartFormDataItems &items,
+                               const std::string &boundary) {
+  if (!detail::is_multipart_boundary_chars_valid(boundary)) {
+    return Result{nullptr, Error::UnsupportedMultipartBoundaryChars};
+  }
+
+  std::string content_type;
+  const auto &body =
+      detail::serialize_multipart_formdata(items, boundary, content_type);
+  return Post(path, headers, body, content_type.c_str());
+}
+
+Result ClientImpl::Put(const std::string &path) {
+  return Put(path, std::string(), std::string());
+}
+
+Result ClientImpl::Put(const std::string &path, const char *body,
+                              size_t content_length,
+                              const std::string &content_type) {
+  return Put(path, Headers(), body, content_length, content_type);
+}
+
+Result ClientImpl::Put(const std::string &path, const Headers &headers,
+                              const char *body, size_t content_length,
+                              const std::string &content_type) {
+  return send_with_content_provider("PUT", path, headers, body, content_length,
+                                    nullptr, nullptr, content_type);
+}
+
+Result ClientImpl::Put(const std::string &path, const std::string &body,
+                              const std::string &content_type) {
+  return Put(path, Headers(), body, content_type);
+}
+
+Result ClientImpl::Put(const std::string &path, const Headers &headers,
+                              const std::string &body,
+                              const std::string &content_type) {
+  return send_with_content_provider("PUT", path, headers, body.data(),
+                                    body.size(), nullptr, nullptr,
+                                    content_type);
+}
+
+Result ClientImpl::Put(const std::string &path, size_t content_length,
+                              ContentProvider content_provider,
+                              const std::string &content_type) {
+  return Put(path, Headers(), content_length, std::move(content_provider),
+             content_type);
+}
+
+Result ClientImpl::Put(const std::string &path,
+                              ContentProviderWithoutLength content_provider,
+                              const std::string &content_type) {
+  return Put(path, Headers(), std::move(content_provider), content_type);
+}
+
+Result ClientImpl::Put(const std::string &path, const Headers &headers,
+                              size_t content_length,
+                              ContentProvider content_provider,
+                              const std::string &content_type) {
+  return send_with_content_provider("PUT", path, headers, nullptr,
+                                    content_length, std::move(content_provider),
+                                    nullptr, content_type);
+}
+
+Result ClientImpl::Put(const std::string &path, const Headers &headers,
+                              ContentProviderWithoutLength content_provider,
+                              const std::string &content_type) {
+  return send_with_content_provider("PUT", path, headers, nullptr, 0, nullptr,
+                                    std::move(content_provider), content_type);
+}
+
+Result ClientImpl::Put(const std::string &path, const Params &params) {
+  return Put(path, Headers(), params);
+}
+
+Result ClientImpl::Put(const std::string &path, const Headers &headers,
+                              const Params &params) {
+  auto query = detail::params_to_query_str(params);
+  return Put(path, headers, query, "application/x-www-form-urlencoded");
+}
+
+Result ClientImpl::Put(const std::string &path,
+                              const MultipartFormDataItems &items) {
+  return Put(path, Headers(), items);
+}
+
+Result ClientImpl::Put(const std::string &path, const Headers &headers,
+                              const MultipartFormDataItems &items) {
+  std::string content_type;
+  const auto &body = detail::serialize_multipart_formdata(
+      items, detail::make_multipart_data_boundary(), content_type);
+  return Put(path, headers, body, content_type);
+}
+
+Result ClientImpl::Put(const std::string &path, const Headers &headers,
+                              const MultipartFormDataItems &items,
+                              const std::string &boundary) {
+  if (!detail::is_multipart_boundary_chars_valid(boundary)) {
+    return Result{nullptr, Error::UnsupportedMultipartBoundaryChars};
+  }
+
+  std::string content_type;
+  const auto &body =
+      detail::serialize_multipart_formdata(items, boundary, content_type);
+  return Put(path, headers, body, content_type);
+}
+
+Result ClientImpl::Patch(const std::string &path) {
+  return Patch(path, std::string(), std::string());
+}
+
+Result ClientImpl::Patch(const std::string &path, const char *body,
+                                size_t content_length,
+                                const std::string &content_type) {
+  return Patch(path, Headers(), body, content_length, content_type);
+}
+
+Result ClientImpl::Patch(const std::string &path, const Headers &headers,
+                                const char *body, size_t content_length,
+                                const std::string &content_type) {
+  return send_with_content_provider("PATCH", path, headers, body,
+                                    content_length, nullptr, nullptr,
+                                    content_type);
+}
+
+Result ClientImpl::Patch(const std::string &path,
+                                const std::string &body,
+                                const std::string &content_type) {
+  return Patch(path, Headers(), body, content_type);
+}
+
+Result ClientImpl::Patch(const std::string &path, const Headers &headers,
+                                const std::string &body,
+                                const std::string &content_type) {
+  return send_with_content_provider("PATCH", path, headers, body.data(),
+                                    body.size(), nullptr, nullptr,
+                                    content_type);
+}
+
+Result ClientImpl::Patch(const std::string &path, size_t content_length,
+                                ContentProvider content_provider,
+                                const std::string &content_type) {
+  return Patch(path, Headers(), content_length, std::move(content_provider),
+               content_type);
+}
+
+Result ClientImpl::Patch(const std::string &path,
+                                ContentProviderWithoutLength content_provider,
+                                const std::string &content_type) {
+  return Patch(path, Headers(), std::move(content_provider), content_type);
+}
+
+Result ClientImpl::Patch(const std::string &path, const Headers &headers,
+                                size_t content_length,
+                                ContentProvider content_provider,
+                                const std::string &content_type) {
+  return send_with_content_provider("PATCH", path, headers, nullptr,
+                                    content_length, std::move(content_provider),
+                                    nullptr, content_type);
+}
+
+Result ClientImpl::Patch(const std::string &path, const Headers &headers,
+                                ContentProviderWithoutLength content_provider,
+                                const std::string &content_type) {
+  return send_with_content_provider("PATCH", path, headers, nullptr, 0, nullptr,
+                                    std::move(content_provider), content_type);
+}
+
+Result ClientImpl::Delete(const std::string &path) {
+  return Delete(path, Headers(), std::string(), std::string());
+}
+
+Result ClientImpl::Delete(const std::string &path,
+                                 const Headers &headers) {
+  return Delete(path, headers, std::string(), std::string());
+}
+
+Result ClientImpl::Delete(const std::string &path, const char *body,
+                                 size_t content_length,
+                                 const std::string &content_type) {
+  return Delete(path, Headers(), body, content_length, content_type);
+}
+
+Result ClientImpl::Delete(const std::string &path,
+                                 const Headers &headers, const char *body,
+                                 size_t content_length,
+                                 const std::string &content_type) {
+  Request req;
+  req.method = "DELETE";
+  req.headers = headers;
+  req.path = path;
+
+  if (!content_type.empty()) {
+    req.headers.emplace("Content-Type", content_type);
+  }
+  req.body.assign(body, content_length);
+
+  return send_(std::move(req));
+}
+
+Result ClientImpl::Delete(const std::string &path,
+                                 const std::string &body,
+                                 const std::string &content_type) {
+  return Delete(path, Headers(), body.data(), body.size(), content_type);
+}
+
+Result ClientImpl::Delete(const std::string &path,
+                                 const Headers &headers,
+                                 const std::string &body,
+                                 const std::string &content_type) {
+  return Delete(path, headers, body.data(), body.size(), content_type);
+}
+
+Result ClientImpl::Options(const std::string &path) {
+  return Options(path, Headers());
+}
+
+Result ClientImpl::Options(const std::string &path,
+                                  const Headers &headers) {
+  Request req;
+  req.method = "OPTIONS";
+  req.headers = headers;
+  req.path = path;
+
+  return send_(std::move(req));
+}
+
+size_t ClientImpl::is_socket_open() const {
+  std::lock_guard<std::mutex> guard(socket_mutex_);
+  return socket_.is_open();
+}
+
+socket_t ClientImpl::socket() const { return socket_.sock; }
+
+void ClientImpl::stop() {
+  std::lock_guard<std::mutex> guard(socket_mutex_);
+
+  // If there is anything ongoing right now, the ONLY thread-safe thing we can
+  // do is to shutdown_socket, so that threads using this socket suddenly
+  // discover they can't read/write any more and error out. Everything else
+  // (closing the socket, shutting ssl down) is unsafe because these actions are
+  // not thread-safe.
+  if (socket_requests_in_flight_ > 0) {
+    shutdown_socket(socket_);
+
+    // Aside from that, we set a flag for the socket to be closed when we're
+    // done.
+    socket_should_be_closed_when_request_is_done_ = true;
+    return;
+  }
+
+  // Otherwise, sitll holding the mutex, we can shut everything down ourselves
+  shutdown_ssl(socket_, true);
+  shutdown_socket(socket_);
+  close_socket(socket_);
+}
+
+void ClientImpl::set_connection_timeout(time_t sec, time_t usec) {
+  connection_timeout_sec_ = sec;
+  connection_timeout_usec_ = usec;
+}
+
+void ClientImpl::set_read_timeout(time_t sec, time_t usec) {
+  read_timeout_sec_ = sec;
+  read_timeout_usec_ = usec;
+}
+
+void ClientImpl::set_write_timeout(time_t sec, time_t usec) {
+  write_timeout_sec_ = sec;
+  write_timeout_usec_ = usec;
+}
+
+void ClientImpl::set_basic_auth(const std::string &username,
+                                       const std::string &password) {
+  basic_auth_username_ = username;
+  basic_auth_password_ = password;
+}
+
+void ClientImpl::set_bearer_token_auth(const std::string &token) {
+  bearer_token_auth_token_ = token;
+}
+
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+void ClientImpl::set_digest_auth(const std::string &username,
+                                        const std::string &password) {
+  digest_auth_username_ = username;
+  digest_auth_password_ = password;
+}
+#endif
+
+void ClientImpl::set_keep_alive(bool on) { keep_alive_ = on; }
+
+void ClientImpl::set_follow_location(bool on) { follow_location_ = on; }
+
+void ClientImpl::set_url_encode(bool on) { url_encode_ = on; }
+
+void
+ClientImpl::set_hostname_addr_map(std::map<std::string, std::string> addr_map) {
+  addr_map_ = std::move(addr_map);
+}
+
+void ClientImpl::set_default_headers(Headers headers) {
+  default_headers_ = std::move(headers);
+}
+
+void ClientImpl::set_address_family(int family) {
+  address_family_ = family;
+}
+
+void ClientImpl::set_tcp_nodelay(bool on) { tcp_nodelay_ = on; }
+
+void ClientImpl::set_socket_options(SocketOptions socket_options) {
+  socket_options_ = std::move(socket_options);
+}
+
+void ClientImpl::set_compress(bool on) { compress_ = on; }
+
+void ClientImpl::set_decompress(bool on) { decompress_ = on; }
+
+void ClientImpl::set_interface(const std::string &intf) {
+  interface_ = intf;
+}
+
+void ClientImpl::set_proxy(const std::string &host, int port) {
+  proxy_host_ = host;
+  proxy_port_ = port;
+}
+
+void ClientImpl::set_proxy_basic_auth(const std::string &username,
+                                             const std::string &password) {
+  proxy_basic_auth_username_ = username;
+  proxy_basic_auth_password_ = password;
+}
+
+void ClientImpl::set_proxy_bearer_token_auth(const std::string &token) {
+  proxy_bearer_token_auth_token_ = token;
+}
+
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+void ClientImpl::set_proxy_digest_auth(const std::string &username,
+                                              const std::string &password) {
+  proxy_digest_auth_username_ = username;
+  proxy_digest_auth_password_ = password;
+}
+#endif
+
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+void ClientImpl::set_ca_cert_path(const std::string &ca_cert_file_path,
+                                         const std::string &ca_cert_dir_path) {
+  ca_cert_file_path_ = ca_cert_file_path;
+  ca_cert_dir_path_ = ca_cert_dir_path;
+}
+
+void ClientImpl::set_ca_cert_store(X509_STORE *ca_cert_store) {
+  if (ca_cert_store && ca_cert_store != ca_cert_store_) {
+    ca_cert_store_ = ca_cert_store;
+  }
+}
+#endif
+
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+void ClientImpl::enable_server_certificate_verification(bool enabled) {
+  server_certificate_verification_ = enabled;
+}
+#endif
+
+void ClientImpl::set_logger(Logger logger) {
+  logger_ = std::move(logger);
+}
+
+/*
+ * SSL Implementation
+ */
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+namespace detail {
+
+template <typename U, typename V>
+SSL *ssl_new(socket_t sock, SSL_CTX *ctx, std::mutex &ctx_mutex,
+                    U SSL_connect_or_accept, V setup) {
+  SSL *ssl = nullptr;
+  {
+    std::lock_guard<std::mutex> guard(ctx_mutex);
+    ssl = SSL_new(ctx);
+  }
+
+  if (ssl) {
+    set_nonblocking(sock, true);
+    auto bio = BIO_new_socket(static_cast<int>(sock), BIO_NOCLOSE);
+    BIO_set_nbio(bio, 1);
+    SSL_set_bio(ssl, bio, bio);
+
+    if (!setup(ssl) || SSL_connect_or_accept(ssl) != 1) {
+      SSL_shutdown(ssl);
+      {
+        std::lock_guard<std::mutex> guard(ctx_mutex);
+        SSL_free(ssl);
+      }
+      set_nonblocking(sock, false);
+      return nullptr;
+    }
+    BIO_set_nbio(bio, 0);
+    set_nonblocking(sock, false);
+  }
+
+  return ssl;
+}
+
+void ssl_delete(std::mutex &ctx_mutex, SSL *ssl,
+                       bool shutdown_gracefully) {
+  // sometimes we may want to skip this to try to avoid SIGPIPE if we know
+  // the remote has closed the network connection
+  // Note that it is not always possible to avoid SIGPIPE, this is merely a
+  // best-efforts.
+  if (shutdown_gracefully) { SSL_shutdown(ssl); }
+
+  std::lock_guard<std::mutex> guard(ctx_mutex);
+  SSL_free(ssl);
+}
+
+template <typename U>
+bool ssl_connect_or_accept_nonblocking(socket_t sock, SSL *ssl,
+                                       U ssl_connect_or_accept,
+                                       time_t timeout_sec,
+                                       time_t timeout_usec) {
+  int res = 0;
+  while ((res = ssl_connect_or_accept(ssl)) != 1) {
+    auto err = SSL_get_error(ssl, res);
+    switch (err) {
+    case SSL_ERROR_WANT_READ:
+      if (select_read(sock, timeout_sec, timeout_usec) > 0) { continue; }
+      break;
+    case SSL_ERROR_WANT_WRITE:
+      if (select_write(sock, timeout_sec, timeout_usec) > 0) { continue; }
+      break;
+    default: break;
+    }
+    return false;
+  }
+  return true;
+}
+
+template <typename T>
+bool process_server_socket_ssl(
+    const std::atomic<socket_t> &svr_sock, SSL *ssl, socket_t sock,
+    size_t keep_alive_max_count, time_t keep_alive_timeout_sec,
+    time_t read_timeout_sec, time_t read_timeout_usec, time_t write_timeout_sec,
+    time_t write_timeout_usec, T callback) {
+  return process_server_socket_core(
+      svr_sock, sock, keep_alive_max_count, keep_alive_timeout_sec,
+      [&](bool close_connection, bool &connection_closed) {
+        SSLSocketStream strm(sock, ssl, read_timeout_sec, read_timeout_usec,
+                             write_timeout_sec, write_timeout_usec);
+        return callback(strm, close_connection, connection_closed);
+      });
+}
+
+template <typename T>
+bool
+process_client_socket_ssl(SSL *ssl, socket_t sock, time_t read_timeout_sec,
+                          time_t read_timeout_usec, time_t write_timeout_sec,
+                          time_t write_timeout_usec, T callback) {
+  SSLSocketStream strm(sock, ssl, read_timeout_sec, read_timeout_usec,
+                       write_timeout_sec, write_timeout_usec);
+  return callback(strm);
+}
+
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
+static std::shared_ptr<std::vector<std::mutex>> openSSL_locks_;
+
+class SSLThreadLocks {
+public:
+  SSLThreadLocks() {
+    openSSL_locks_ =
+        std::make_shared<std::vector<std::mutex>>(CRYPTO_num_locks());
+    CRYPTO_set_locking_callback(locking_callback);
+  }
+
+  ~SSLThreadLocks() { CRYPTO_set_locking_callback(nullptr); }
+
+private:
+  static void locking_callback(int mode, int type, const char * /*file*/,
+                               int /*line*/) {
+    auto &lk = (*openSSL_locks_)[static_cast<size_t>(type)];
+    if (mode & CRYPTO_LOCK) {
+      lk.lock();
+    } else {
+      lk.unlock();
+    }
+  }
+};
+
+#endif
+
+class SSLInit {
+public:
+  SSLInit() {
+#if OPENSSL_VERSION_NUMBER < 0x1010001fL
+    SSL_load_error_strings();
+    SSL_library_init();
+#else
+    OPENSSL_init_ssl(
+        OPENSSL_INIT_LOAD_SSL_STRINGS | OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL);
+#endif
+  }
+
+  ~SSLInit() {
+#if OPENSSL_VERSION_NUMBER < 0x1010001fL
+    ERR_free_strings();
+#endif
+  }
+
+private:
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
+  SSLThreadLocks thread_init_;
+#endif
+};
+
+// SSL socket stream implementation
+SSLSocketStream::SSLSocketStream(socket_t sock, SSL *ssl,
+                                        time_t read_timeout_sec,
+                                        time_t read_timeout_usec,
+                                        time_t write_timeout_sec,
+                                        time_t write_timeout_usec)
+    : sock_(sock), ssl_(ssl), read_timeout_sec_(read_timeout_sec),
+      read_timeout_usec_(read_timeout_usec),
+      write_timeout_sec_(write_timeout_sec),
+      write_timeout_usec_(write_timeout_usec) {
+  SSL_clear_mode(ssl, SSL_MODE_AUTO_RETRY);
+}
+
+SSLSocketStream::~SSLSocketStream() {}
+
+bool SSLSocketStream::is_readable() const {
+  return detail::select_read(sock_, read_timeout_sec_, read_timeout_usec_) > 0;
+}
+
+bool SSLSocketStream::is_writable() const {
+  return detail::select_write(sock_, write_timeout_sec_, write_timeout_usec_) >
+         0;
+}
+
+ssize_t SSLSocketStream::read(char *ptr, size_t size) {
+  if (SSL_pending(ssl_) > 0) {
+    return SSL_read(ssl_, ptr, static_cast<int>(size));
+  } else if (is_readable()) {
+    auto ret = SSL_read(ssl_, ptr, static_cast<int>(size));
+    if (ret < 0) {
+      auto err = SSL_get_error(ssl_, ret);
+      int n = 1000;
+#ifdef _WIN32
+      while (--n >= 0 && (err == SSL_ERROR_WANT_READ ||
+                          (err == SSL_ERROR_SYSCALL &&
+                           WSAGetLastError() == WSAETIMEDOUT))) {
+#else
+      while (--n >= 0 && err == SSL_ERROR_WANT_READ) {
+#endif
+        if (SSL_pending(ssl_) > 0) {
+          return SSL_read(ssl_, ptr, static_cast<int>(size));
+        } else if (is_readable()) {
+          std::this_thread::sleep_for(std::chrono::milliseconds(1));
+          ret = SSL_read(ssl_, ptr, static_cast<int>(size));
+          if (ret >= 0) { return ret; }
+          err = SSL_get_error(ssl_, ret);
+        } else {
+          return -1;
+        }
+      }
+    }
+    return ret;
+  }
+  return -1;
+}
+
+ssize_t SSLSocketStream::write(const char *ptr, size_t size) {
+  if (is_writable()) {
+    auto handle_size = static_cast<int>(
+        std::min<size_t>(size, (std::numeric_limits<int>::max)()));
+
+    auto ret = SSL_write(ssl_, ptr, static_cast<int>(handle_size));
+    if (ret < 0) {
+      auto err = SSL_get_error(ssl_, ret);
+      int n = 1000;
+#ifdef _WIN32
+      while (--n >= 0 && (err == SSL_ERROR_WANT_WRITE ||
+                          (err == SSL_ERROR_SYSCALL &&
+                           WSAGetLastError() == WSAETIMEDOUT))) {
+#else
+      while (--n >= 0 && err == SSL_ERROR_WANT_WRITE) {
+#endif
+        if (is_writable()) {
+          std::this_thread::sleep_for(std::chrono::milliseconds(1));
+          ret = SSL_write(ssl_, ptr, static_cast<int>(handle_size));
+          if (ret >= 0) { return ret; }
+          err = SSL_get_error(ssl_, ret);
+        } else {
+          return -1;
+        }
+      }
+    }
+    return ret;
+  }
+  return -1;
+}
+
+void SSLSocketStream::get_remote_ip_and_port(std::string &ip,
+                                                    int &port) const {
+  detail::get_remote_ip_and_port(sock_, ip, port);
+}
+
+socket_t SSLSocketStream::socket() const { return sock_; }
+
+static SSLInit sslinit_;
+
+} // namespace detail
+
+// SSL HTTP server implementation
+SSLServer::SSLServer(const char *cert_path, const char *private_key_path,
+                            const char *client_ca_cert_file_path,
+                            const char *client_ca_cert_dir_path,
+                            const char *private_key_password) {
+  ctx_ = SSL_CTX_new(TLS_server_method());
+
+  if (ctx_) {
+    SSL_CTX_set_options(ctx_,
+                        SSL_OP_NO_COMPRESSION |
+                            SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION);
+
+    SSL_CTX_set_min_proto_version(ctx_, TLS1_1_VERSION);
+
+    // add default password callback before opening encrypted private key
+    if (private_key_password != nullptr && (private_key_password[0] != '\0')) {
+      SSL_CTX_set_default_passwd_cb_userdata(ctx_,
+                                             (char *)private_key_password);
+    }
+
+    if (SSL_CTX_use_certificate_chain_file(ctx_, cert_path) != 1 ||
+        SSL_CTX_use_PrivateKey_file(ctx_, private_key_path, SSL_FILETYPE_PEM) !=
+            1) {
+      SSL_CTX_free(ctx_);
+      ctx_ = nullptr;
+    } else if (client_ca_cert_file_path || client_ca_cert_dir_path) {
+      SSL_CTX_load_verify_locations(ctx_, client_ca_cert_file_path,
+                                    client_ca_cert_dir_path);
+
+      SSL_CTX_set_verify(
+          ctx_, SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT, nullptr);
+    }
+  }
+}
+
+SSLServer::SSLServer(X509 *cert, EVP_PKEY *private_key,
+                            X509_STORE *client_ca_cert_store) {
+  ctx_ = SSL_CTX_new(TLS_server_method());
+
+  if (ctx_) {
+    SSL_CTX_set_options(ctx_,
+                        SSL_OP_NO_COMPRESSION |
+                            SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION);
+
+    SSL_CTX_set_min_proto_version(ctx_, TLS1_1_VERSION);
+
+    if (SSL_CTX_use_certificate(ctx_, cert) != 1 ||
+        SSL_CTX_use_PrivateKey(ctx_, private_key) != 1) {
+      SSL_CTX_free(ctx_);
+      ctx_ = nullptr;
+    } else if (client_ca_cert_store) {
+      SSL_CTX_set_cert_store(ctx_, client_ca_cert_store);
+
+      SSL_CTX_set_verify(
+          ctx_, SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT, nullptr);
+    }
+  }
+}
+
+SSLServer::SSLServer(
+    const std::function<bool(SSL_CTX &ssl_ctx)> &setup_ssl_ctx_callback) {
+  ctx_ = SSL_CTX_new(TLS_method());
+  if (ctx_) {
+    if (!setup_ssl_ctx_callback(*ctx_)) {
+      SSL_CTX_free(ctx_);
+      ctx_ = nullptr;
+    }
+  }
+}
+
+SSLServer::~SSLServer() {
+  if (ctx_) { SSL_CTX_free(ctx_); }
+}
+
+bool SSLServer::is_valid() const { return ctx_; }
+
+SSL_CTX *SSLServer::ssl_context() const { return ctx_; }
+
+bool SSLServer::process_and_close_socket(socket_t sock) {
+  auto ssl = detail::ssl_new(
+      sock, ctx_, ctx_mutex_,
+      [&](SSL *ssl2) {
+        return detail::ssl_connect_or_accept_nonblocking(
+            sock, ssl2, SSL_accept, read_timeout_sec_, read_timeout_usec_);
+      },
+      [](SSL * /*ssl2*/) { return true; });
+
+  bool ret = false;
+  if (ssl) {
+    ret = detail::process_server_socket_ssl(
+        svr_sock_, ssl, sock, keep_alive_max_count_, keep_alive_timeout_sec_,
+        read_timeout_sec_, read_timeout_usec_, write_timeout_sec_,
+        write_timeout_usec_,
+        [this, ssl](Stream &strm, bool close_connection,
+                    bool &connection_closed) {
+          return process_request(strm, close_connection, connection_closed,
+                                 [&](Request &req) { req.ssl = ssl; });
+        });
+
+    // Shutdown gracefully if the result seemed successful, non-gracefully if
+    // the connection appeared to be closed.
+    const bool shutdown_gracefully = ret;
+    detail::ssl_delete(ctx_mutex_, ssl, shutdown_gracefully);
+  }
+
+  detail::shutdown_socket(sock);
+  detail::close_socket(sock);
+  return ret;
+}
+
+// SSL HTTP client implementation
+SSLClient::SSLClient(const std::string &host)
+    : SSLClient(host, 443, std::string(), std::string()) {}
+
+SSLClient::SSLClient(const std::string &host, int port)
+    : SSLClient(host, port, std::string(), std::string()) {}
+
+SSLClient::SSLClient(const std::string &host, int port,
+                            const std::string &client_cert_path,
+                            const std::string &client_key_path)
+    : ClientImpl(host, port, client_cert_path, client_key_path) {
+  ctx_ = SSL_CTX_new(TLS_client_method());
+
+  detail::split(&host_[0], &host_[host_.size()], '.',
+                [&](const char *b, const char *e) {
+                  host_components_.emplace_back(std::string(b, e));
+                });
+
+  if (!client_cert_path.empty() && !client_key_path.empty()) {
+    if (SSL_CTX_use_certificate_file(ctx_, client_cert_path.c_str(),
+                                     SSL_FILETYPE_PEM) != 1 ||
+        SSL_CTX_use_PrivateKey_file(ctx_, client_key_path.c_str(),
+                                    SSL_FILETYPE_PEM) != 1) {
+      SSL_CTX_free(ctx_);
+      ctx_ = nullptr;
+    }
+  }
+}
+
+SSLClient::SSLClient(const std::string &host, int port,
+                            X509 *client_cert, EVP_PKEY *client_key)
+    : ClientImpl(host, port) {
+  ctx_ = SSL_CTX_new(TLS_client_method());
+
+  detail::split(&host_[0], &host_[host_.size()], '.',
+                [&](const char *b, const char *e) {
+                  host_components_.emplace_back(std::string(b, e));
+                });
+
+  if (client_cert != nullptr && client_key != nullptr) {
+    if (SSL_CTX_use_certificate(ctx_, client_cert) != 1 ||
+        SSL_CTX_use_PrivateKey(ctx_, client_key) != 1) {
+      SSL_CTX_free(ctx_);
+      ctx_ = nullptr;
+    }
+  }
+}
+
+SSLClient::~SSLClient() {
+  if (ctx_) { SSL_CTX_free(ctx_); }
+  // Make sure to shut down SSL since shutdown_ssl will resolve to the
+  // base function rather than the derived function once we get to the
+  // base class destructor, and won't free the SSL (causing a leak).
+  shutdown_ssl_impl(socket_, true);
+}
+
+bool SSLClient::is_valid() const { return ctx_; }
+
+void SSLClient::set_ca_cert_store(X509_STORE *ca_cert_store) {
+  if (ca_cert_store) {
+    if (ctx_) {
+      if (SSL_CTX_get_cert_store(ctx_) != ca_cert_store) {
+        // Free memory allocated for old cert and use new store `ca_cert_store`
+        SSL_CTX_set_cert_store(ctx_, ca_cert_store);
+      }
+    } else {
+      X509_STORE_free(ca_cert_store);
+    }
+  }
+}
+
+long SSLClient::get_openssl_verify_result() const {
+  return verify_result_;
+}
+
+SSL_CTX *SSLClient::ssl_context() const { return ctx_; }
+
+bool SSLClient::create_and_connect_socket(Socket &socket, Error &error) {
+  return is_valid() && ClientImpl::create_and_connect_socket(socket, error);
+}
+
+// Assumes that socket_mutex_ is locked and that there are no requests in flight
+bool SSLClient::connect_with_proxy(Socket &socket, Response &res,
+                                          bool &success, Error &error) {
+  success = true;
+  Response res2;
+  if (!detail::process_client_socket(
+          socket.sock, read_timeout_sec_, read_timeout_usec_,
+          write_timeout_sec_, write_timeout_usec_, [&](Stream &strm) {
+            Request req2;
+            req2.method = "CONNECT";
+            req2.path = host_and_port_;
+            return process_request(strm, req2, res2, false, error);
+          })) {
+    // Thread-safe to close everything because we are assuming there are no
+    // requests in flight
+    shutdown_ssl(socket, true);
+    shutdown_socket(socket);
+    close_socket(socket);
+    success = false;
+    return false;
+  }
+
+  if (res2.status == 407) {
+    if (!proxy_digest_auth_username_.empty() &&
+        !proxy_digest_auth_password_.empty()) {
+      std::map<std::string, std::string> auth;
+      if (detail::parse_www_authenticate(res2, auth, true)) {
+        Response res3;
+        if (!detail::process_client_socket(
+                socket.sock, read_timeout_sec_, read_timeout_usec_,
+                write_timeout_sec_, write_timeout_usec_, [&](Stream &strm) {
+                  Request req3;
+                  req3.method = "CONNECT";
+                  req3.path = host_and_port_;
+                  req3.headers.insert(detail::make_digest_authentication_header(
+                      req3, auth, 1, detail::random_string(10),
+                      proxy_digest_auth_username_, proxy_digest_auth_password_,
+                      true));
+                  return process_request(strm, req3, res3, false, error);
+                })) {
+          // Thread-safe to close everything because we are assuming there are
+          // no requests in flight
+          shutdown_ssl(socket, true);
+          shutdown_socket(socket);
+          close_socket(socket);
+          success = false;
+          return false;
+        }
+      }
+    } else {
+      res = res2;
+      return false;
+    }
+  }
+
+  return true;
+}
+
+bool SSLClient::load_certs() {
+  bool ret = true;
+
+  std::call_once(initialize_cert_, [&]() {
+    std::lock_guard<std::mutex> guard(ctx_mutex_);
+    if (!ca_cert_file_path_.empty()) {
+      if (!SSL_CTX_load_verify_locations(ctx_, ca_cert_file_path_.c_str(),
+                                         nullptr)) {
+        ret = false;
+      }
+    } else if (!ca_cert_dir_path_.empty()) {
+      if (!SSL_CTX_load_verify_locations(ctx_, nullptr,
+                                         ca_cert_dir_path_.c_str())) {
+        ret = false;
+      }
+    } else {
+#ifdef _WIN32
+      detail::load_system_certs_on_windows(SSL_CTX_get_cert_store(ctx_));
+#else
+      SSL_CTX_set_default_verify_paths(ctx_);
+#endif
+    }
+  });
+
+  return ret;
+}
+
+bool SSLClient::initialize_ssl(Socket &socket, Error &error) {
+  auto ssl = detail::ssl_new(
+      socket.sock, ctx_, ctx_mutex_,
+      [&](SSL *ssl2) {
+        if (server_certificate_verification_) {
+          if (!load_certs()) {
+            error = Error::SSLLoadingCerts;
+            return false;
+          }
+          SSL_set_verify(ssl2, SSL_VERIFY_NONE, nullptr);
+        }
+
+        if (!detail::ssl_connect_or_accept_nonblocking(
+                socket.sock, ssl2, SSL_connect, connection_timeout_sec_,
+                connection_timeout_usec_)) {
+          error = Error::SSLConnection;
+          return false;
+        }
+
+        if (server_certificate_verification_) {
+          verify_result_ = SSL_get_verify_result(ssl2);
+
+          if (verify_result_ != X509_V_OK) {
+            error = Error::SSLServerVerification;
+            return false;
+          }
+
+          auto server_cert = SSL_get_peer_certificate(ssl2);
+
+          if (server_cert == nullptr) {
+            error = Error::SSLServerVerification;
+            return false;
+          }
+
+          if (!verify_host(server_cert)) {
+            X509_free(server_cert);
+            error = Error::SSLServerVerification;
+            return false;
+          }
+          X509_free(server_cert);
+        }
+
+        return true;
+      },
+      [&](SSL *ssl2) {
+        SSL_set_tlsext_host_name(ssl2, host_.c_str());
+        return true;
+      });
+
+  if (ssl) {
+    socket.ssl = ssl;
+    return true;
+  }
+
+  shutdown_socket(socket);
+  close_socket(socket);
+  return false;
+}
+
+void SSLClient::shutdown_ssl(Socket &socket, bool shutdown_gracefully) {
+  shutdown_ssl_impl(socket, shutdown_gracefully);
+}
+
+void SSLClient::shutdown_ssl_impl(Socket &socket,
+                                         bool shutdown_gracefully) {
+  if (socket.sock == INVALID_SOCKET) {
+    assert(socket.ssl == nullptr);
+    return;
+  }
+  if (socket.ssl) {
+    detail::ssl_delete(ctx_mutex_, socket.ssl, shutdown_gracefully);
+    socket.ssl = nullptr;
+  }
+  assert(socket.ssl == nullptr);
+}
+
+bool
+SSLClient::process_socket(const Socket &socket,
+                          std::function<bool(Stream &strm)> callback) {
+  assert(socket.ssl);
+  return detail::process_client_socket_ssl(
+      socket.ssl, socket.sock, read_timeout_sec_, read_timeout_usec_,
+      write_timeout_sec_, write_timeout_usec_, std::move(callback));
+}
+
+bool SSLClient::is_ssl() const { return true; }
+
+bool SSLClient::verify_host(X509 *server_cert) const {
+  /* Quote from RFC2818 section 3.1 "Server Identity"
+
+     If a subjectAltName extension of type dNSName is present, that MUST
+     be used as the identity. Otherwise, the (most specific) Common Name
+     field in the Subject field of the certificate MUST be used. Although
+     the use of the Common Name is existing practice, it is deprecated and
+     Certification Authorities are encouraged to use the dNSName instead.
+
+     Matching is performed using the matching rules specified by
+     [RFC2459].  If more than one identity of a given type is present in
+     the certificate (e.g., more than one dNSName name, a match in any one
+     of the set is considered acceptable.) Names may contain the wildcard
+     character * which is considered to match any single domain name
+     component or component fragment. E.g., *.a.com matches foo.a.com but
+     not bar.foo.a.com. f*.com matches foo.com but not bar.com.
+
+     In some cases, the URI is specified as an IP address rather than a
+     hostname. In this case, the iPAddress subjectAltName must be present
+     in the certificate and must exactly match the IP in the URI.
+
+  */
+  return verify_host_with_subject_alt_name(server_cert) ||
+         verify_host_with_common_name(server_cert);
+}
+
+bool
+SSLClient::verify_host_with_subject_alt_name(X509 *server_cert) const {
+  auto ret = false;
+
+  auto type = GEN_DNS;
+
+  struct in6_addr addr6;
+  struct in_addr addr;
+  size_t addr_len = 0;
+
+#ifndef __MINGW32__
+  if (inet_pton(AF_INET6, host_.c_str(), &addr6)) {
+    type = GEN_IPADD;
+    addr_len = sizeof(struct in6_addr);
+  } else if (inet_pton(AF_INET, host_.c_str(), &addr)) {
+    type = GEN_IPADD;
+    addr_len = sizeof(struct in_addr);
+  }
+#endif
+
+  auto alt_names = static_cast<const struct stack_st_GENERAL_NAME *>(
+      X509_get_ext_d2i(server_cert, NID_subject_alt_name, nullptr, nullptr));
+
+  if (alt_names) {
+    auto dsn_matched = false;
+    auto ip_mached = false;
+
+    auto count = sk_GENERAL_NAME_num(alt_names);
+
+    for (decltype(count) i = 0; i < count && !dsn_matched; i++) {
+      auto val = sk_GENERAL_NAME_value(alt_names, i);
+      if (val->type == type) {
+        auto name = (const char *)ASN1_STRING_get0_data(val->d.ia5);
+        auto name_len = (size_t)ASN1_STRING_length(val->d.ia5);
+
+        switch (type) {
+        case GEN_DNS: dsn_matched = check_host_name(name, name_len); break;
+
+        case GEN_IPADD:
+          if (!memcmp(&addr6, name, addr_len) ||
+              !memcmp(&addr, name, addr_len)) {
+            ip_mached = true;
+          }
+          break;
+        }
+      }
+    }
+
+    if (dsn_matched || ip_mached) { ret = true; }
+  }
+
+  GENERAL_NAMES_free((STACK_OF(GENERAL_NAME) *)alt_names);
+  return ret;
+}
+
+bool SSLClient::verify_host_with_common_name(X509 *server_cert) const {
+  const auto subject_name = X509_get_subject_name(server_cert);
+
+  if (subject_name != nullptr) {
+    char name[BUFSIZ];
+    auto name_len = X509_NAME_get_text_by_NID(subject_name, NID_commonName,
+                                              name, sizeof(name));
+
+    if (name_len != -1) {
+      return check_host_name(name, static_cast<size_t>(name_len));
+    }
+  }
+
+  return false;
+}
+
+bool SSLClient::check_host_name(const char *pattern,
+                                       size_t pattern_len) const {
+  if (host_.size() == pattern_len && host_ == pattern) { return true; }
+
+  // Wildcard match
+  // https://bugs.launchpad.net/ubuntu/+source/firefox-3.0/+bug/376484
+  std::vector<std::string> pattern_components;
+  detail::split(&pattern[0], &pattern[pattern_len], '.',
+                [&](const char *b, const char *e) {
+                  pattern_components.emplace_back(std::string(b, e));
+                });
+
+  if (host_components_.size() != pattern_components.size()) { return false; }
+
+  auto itr = pattern_components.begin();
+  for (const auto &h : host_components_) {
+    auto &p = *itr;
+    if (p != h && p != "*") {
+      auto partial_match = (p.size() > 0 && p[p.size() - 1] == '*' &&
+                            !p.compare(0, p.size() - 1, h));
+      if (!partial_match) { return false; }
+    }
+    ++itr;
+  }
+
+  return true;
+}
+#endif
+
+// Universal client implementation
+Client::Client(const std::string &scheme_host_port)
+    : Client(scheme_host_port, std::string(), std::string()) {}
+
+Client::Client(const std::string &scheme_host_port,
+                      const std::string &client_cert_path,
+                      const std::string &client_key_path) {
+  const static std::regex re(
+      R"((?:([a-z]+):\/\/)?(?:\[([\d:]+)\]|([^:/?#]+))(?::(\d+))?)");
+
+  std::smatch m;
+  if (std::regex_match(scheme_host_port, m, re)) {
+    auto scheme = m[1].str();
+
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+    if (!scheme.empty() && (scheme != "http" && scheme != "https")) {
+#else
+    if (!scheme.empty() && scheme != "http") {
+#endif
+#ifndef CPPHTTPLIB_NO_EXCEPTIONS
+      std::string msg = "'" + scheme + "' scheme is not supported.";
+      throw std::invalid_argument(msg);
+#endif
+      return;
+    }
+
+    auto is_ssl = scheme == "https";
+
+    auto host = m[2].str();
+    if (host.empty()) { host = m[3].str(); }
+
+    auto port_str = m[4].str();
+    auto port = !port_str.empty() ? std::stoi(port_str) : (is_ssl ? 443 : 80);
+
+    if (is_ssl) {
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+      cli_ = detail::make_unique<SSLClient>(host, port, client_cert_path,
+                                            client_key_path);
+      is_ssl_ = is_ssl;
+#endif
+    } else {
+      cli_ = detail::make_unique<ClientImpl>(host, port, client_cert_path,
+                                             client_key_path);
+    }
+  } else {
+    cli_ = detail::make_unique<ClientImpl>(scheme_host_port, 80,
+                                           client_cert_path, client_key_path);
+  }
+}
+
+Client::Client(const std::string &host, int port)
+    : cli_(detail::make_unique<ClientImpl>(host, port)) {}
+
+Client::Client(const std::string &host, int port,
+                      const std::string &client_cert_path,
+                      const std::string &client_key_path)
+    : cli_(detail::make_unique<ClientImpl>(host, port, client_cert_path,
+                                           client_key_path)) {}
+
+Client::~Client() {}
+
+bool Client::is_valid() const {
+  return cli_ != nullptr && cli_->is_valid();
+}
+
+Result Client::Get(const std::string &path) { return cli_->Get(path); }
+Result Client::Get(const std::string &path, const Headers &headers) {
+  return cli_->Get(path, headers);
+}
+Result Client::Get(const std::string &path, Progress progress) {
+  return cli_->Get(path, std::move(progress));
+}
+Result Client::Get(const std::string &path, const Headers &headers,
+                          Progress progress) {
+  return cli_->Get(path, headers, std::move(progress));
+}
+Result Client::Get(const std::string &path,
+                          ContentReceiver content_receiver) {
+  return cli_->Get(path, std::move(content_receiver));
+}
+Result Client::Get(const std::string &path, const Headers &headers,
+                          ContentReceiver content_receiver) {
+  return cli_->Get(path, headers, std::move(content_receiver));
+}
+Result Client::Get(const std::string &path,
+                          ContentReceiver content_receiver, Progress progress) {
+  return cli_->Get(path, std::move(content_receiver), std::move(progress));
+}
+Result Client::Get(const std::string &path, const Headers &headers,
+                          ContentReceiver content_receiver, Progress progress) {
+  return cli_->Get(path, headers, std::move(content_receiver),
+                   std::move(progress));
+}
+Result Client::Get(const std::string &path,
+                          ResponseHandler response_handler,
+                          ContentReceiver content_receiver) {
+  return cli_->Get(path, std::move(response_handler),
+                   std::move(content_receiver));
+}
+Result Client::Get(const std::string &path, const Headers &headers,
+                          ResponseHandler response_handler,
+                          ContentReceiver content_receiver) {
+  return cli_->Get(path, headers, std::move(response_handler),
+                   std::move(content_receiver));
+}
+Result Client::Get(const std::string &path,
+                          ResponseHandler response_handler,
+                          ContentReceiver content_receiver, Progress progress) {
+  return cli_->Get(path, std::move(response_handler),
+                   std::move(content_receiver), std::move(progress));
+}
+Result Client::Get(const std::string &path, const Headers &headers,
+                          ResponseHandler response_handler,
+                          ContentReceiver content_receiver, Progress progress) {
+  return cli_->Get(path, headers, std::move(response_handler),
+                   std::move(content_receiver), std::move(progress));
+}
+Result Client::Get(const std::string &path, const Params &params,
+                          const Headers &headers, Progress progress) {
+  return cli_->Get(path, params, headers, progress);
+}
+Result Client::Get(const std::string &path, const Params &params,
+                          const Headers &headers,
+                          ContentReceiver content_receiver, Progress progress) {
+  return cli_->Get(path, params, headers, content_receiver, progress);
+}
+Result Client::Get(const std::string &path, const Params &params,
+                          const Headers &headers,
+                          ResponseHandler response_handler,
+                          ContentReceiver content_receiver, Progress progress) {
+  return cli_->Get(path, params, headers, response_handler, content_receiver,
+                   progress);
+}
+
+Result Client::Head(const std::string &path) { return cli_->Head(path); }
+Result Client::Head(const std::string &path, const Headers &headers) {
+  return cli_->Head(path, headers);
+}
+
+Result Client::Post(const std::string &path) { return cli_->Post(path); }
+Result Client::Post(const std::string &path, const char *body,
+                           size_t content_length,
+                           const std::string &content_type) {
+  return cli_->Post(path, body, content_length, content_type);
+}
+Result Client::Post(const std::string &path, const Headers &headers,
+                           const char *body, size_t content_length,
+                           const std::string &content_type) {
+  return cli_->Post(path, headers, body, content_length, content_type);
+}
+Result Client::Post(const std::string &path, const std::string &body,
+                           const std::string &content_type) {
+  return cli_->Post(path, body, content_type);
+}
+Result Client::Post(const std::string &path, const Headers &headers,
+                           const std::string &body,
+                           const std::string &content_type) {
+  return cli_->Post(path, headers, body, content_type);
+}
+Result Client::Post(const std::string &path, size_t content_length,
+                           ContentProvider content_provider,
+                           const std::string &content_type) {
+  return cli_->Post(path, content_length, std::move(content_provider),
+                    content_type);
+}
+Result Client::Post(const std::string &path,
+                           ContentProviderWithoutLength content_provider,
+                           const std::string &content_type) {
+  return cli_->Post(path, std::move(content_provider), content_type);
+}
+Result Client::Post(const std::string &path, const Headers &headers,
+                           size_t content_length,
+                           ContentProvider content_provider,
+                           const std::string &content_type) {
+  return cli_->Post(path, headers, content_length, std::move(content_provider),
+                    content_type);
+}
+Result Client::Post(const std::string &path, const Headers &headers,
+                           ContentProviderWithoutLength content_provider,
+                           const std::string &content_type) {
+  return cli_->Post(path, headers, std::move(content_provider), content_type);
+}
+Result Client::Post(const std::string &path, const Params &params) {
+  return cli_->Post(path, params);
+}
+Result Client::Post(const std::string &path, const Headers &headers,
+                           const Params &params) {
+  return cli_->Post(path, headers, params);
+}
+Result Client::Post(const std::string &path,
+                           const MultipartFormDataItems &items) {
+  return cli_->Post(path, items);
+}
+Result Client::Post(const std::string &path, const Headers &headers,
+                           const MultipartFormDataItems &items) {
+  return cli_->Post(path, headers, items);
+}
+Result Client::Post(const std::string &path, const Headers &headers,
+                           const MultipartFormDataItems &items,
+                           const std::string &boundary) {
+  return cli_->Post(path, headers, items, boundary);
+}
+Result Client::Put(const std::string &path) { return cli_->Put(path); }
+Result Client::Put(const std::string &path, const char *body,
+                          size_t content_length,
+                          const std::string &content_type) {
+  return cli_->Put(path, body, content_length, content_type);
+}
+Result Client::Put(const std::string &path, const Headers &headers,
+                          const char *body, size_t content_length,
+                          const std::string &content_type) {
+  return cli_->Put(path, headers, body, content_length, content_type);
+}
+Result Client::Put(const std::string &path, const std::string &body,
+                          const std::string &content_type) {
+  return cli_->Put(path, body, content_type);
+}
+Result Client::Put(const std::string &path, const Headers &headers,
+                          const std::string &body,
+                          const std::string &content_type) {
+  return cli_->Put(path, headers, body, content_type);
+}
+Result Client::Put(const std::string &path, size_t content_length,
+                          ContentProvider content_provider,
+                          const std::string &content_type) {
+  return cli_->Put(path, content_length, std::move(content_provider),
+                   content_type);
+}
+Result Client::Put(const std::string &path,
+                          ContentProviderWithoutLength content_provider,
+                          const std::string &content_type) {
+  return cli_->Put(path, std::move(content_provider), content_type);
+}
+Result Client::Put(const std::string &path, const Headers &headers,
+                          size_t content_length,
+                          ContentProvider content_provider,
+                          const std::string &content_type) {
+  return cli_->Put(path, headers, content_length, std::move(content_provider),
+                   content_type);
+}
+Result Client::Put(const std::string &path, const Headers &headers,
+                          ContentProviderWithoutLength content_provider,
+                          const std::string &content_type) {
+  return cli_->Put(path, headers, std::move(content_provider), content_type);
+}
+Result Client::Put(const std::string &path, const Params &params) {
+  return cli_->Put(path, params);
+}
+Result Client::Put(const std::string &path, const Headers &headers,
+                          const Params &params) {
+  return cli_->Put(path, headers, params);
+}
+Result Client::Put(const std::string &path,
+                          const MultipartFormDataItems &items) {
+  return cli_->Put(path, items);
+}
+Result Client::Put(const std::string &path, const Headers &headers,
+                          const MultipartFormDataItems &items) {
+  return cli_->Put(path, headers, items);
+}
+Result Client::Put(const std::string &path, const Headers &headers,
+                          const MultipartFormDataItems &items,
+                          const std::string &boundary) {
+  return cli_->Put(path, headers, items, boundary);
+}
+Result Client::Patch(const std::string &path) {
+  return cli_->Patch(path);
+}
+Result Client::Patch(const std::string &path, const char *body,
+                            size_t content_length,
+                            const std::string &content_type) {
+  return cli_->Patch(path, body, content_length, content_type);
+}
+Result Client::Patch(const std::string &path, const Headers &headers,
+                            const char *body, size_t content_length,
+                            const std::string &content_type) {
+  return cli_->Patch(path, headers, body, content_length, content_type);
+}
+Result Client::Patch(const std::string &path, const std::string &body,
+                            const std::string &content_type) {
+  return cli_->Patch(path, body, content_type);
+}
+Result Client::Patch(const std::string &path, const Headers &headers,
+                            const std::string &body,
+                            const std::string &content_type) {
+  return cli_->Patch(path, headers, body, content_type);
+}
+Result Client::Patch(const std::string &path, size_t content_length,
+                            ContentProvider content_provider,
+                            const std::string &content_type) {
+  return cli_->Patch(path, content_length, std::move(content_provider),
+                     content_type);
+}
+Result Client::Patch(const std::string &path,
+                            ContentProviderWithoutLength content_provider,
+                            const std::string &content_type) {
+  return cli_->Patch(path, std::move(content_provider), content_type);
+}
+Result Client::Patch(const std::string &path, const Headers &headers,
+                            size_t content_length,
+                            ContentProvider content_provider,
+                            const std::string &content_type) {
+  return cli_->Patch(path, headers, content_length, std::move(content_provider),
+                     content_type);
+}
+Result Client::Patch(const std::string &path, const Headers &headers,
+                            ContentProviderWithoutLength content_provider,
+                            const std::string &content_type) {
+  return cli_->Patch(path, headers, std::move(content_provider), content_type);
+}
+Result Client::Delete(const std::string &path) {
+  return cli_->Delete(path);
+}
+Result Client::Delete(const std::string &path, const Headers &headers) {
+  return cli_->Delete(path, headers);
+}
+Result Client::Delete(const std::string &path, const char *body,
+                             size_t content_length,
+                             const std::string &content_type) {
+  return cli_->Delete(path, body, content_length, content_type);
+}
+Result Client::Delete(const std::string &path, const Headers &headers,
+                             const char *body, size_t content_length,
+                             const std::string &content_type) {
+  return cli_->Delete(path, headers, body, content_length, content_type);
+}
+Result Client::Delete(const std::string &path, const std::string &body,
+                             const std::string &content_type) {
+  return cli_->Delete(path, body, content_type);
+}
+Result Client::Delete(const std::string &path, const Headers &headers,
+                             const std::string &body,
+                             const std::string &content_type) {
+  return cli_->Delete(path, headers, body, content_type);
+}
+Result Client::Options(const std::string &path) {
+  return cli_->Options(path);
+}
+Result Client::Options(const std::string &path, const Headers &headers) {
+  return cli_->Options(path, headers);
+}
+
+bool Client::send(Request &req, Response &res, Error &error) {
+  return cli_->send(req, res, error);
+}
+
+Result Client::send(const Request &req) { return cli_->send(req); }
+
+size_t Client::is_socket_open() const { return cli_->is_socket_open(); }
+
+socket_t Client::socket() const { return cli_->socket(); }
+
+void Client::stop() { cli_->stop(); }
+
+void
+Client::set_hostname_addr_map(std::map<std::string, std::string> addr_map) {
+  cli_->set_hostname_addr_map(std::move(addr_map));
+}
+
+void Client::set_default_headers(Headers headers) {
+  cli_->set_default_headers(std::move(headers));
+}
+
+void Client::set_address_family(int family) {
+  cli_->set_address_family(family);
+}
+
+void Client::set_tcp_nodelay(bool on) { cli_->set_tcp_nodelay(on); }
+
+void Client::set_socket_options(SocketOptions socket_options) {
+  cli_->set_socket_options(std::move(socket_options));
+}
+
+void Client::set_connection_timeout(time_t sec, time_t usec) {
+  cli_->set_connection_timeout(sec, usec);
+}
+
+void Client::set_read_timeout(time_t sec, time_t usec) {
+  cli_->set_read_timeout(sec, usec);
+}
+
+void Client::set_write_timeout(time_t sec, time_t usec) {
+  cli_->set_write_timeout(sec, usec);
+}
+
+void Client::set_basic_auth(const std::string &username,
+                                   const std::string &password) {
+  cli_->set_basic_auth(username, password);
+}
+void Client::set_bearer_token_auth(const std::string &token) {
+  cli_->set_bearer_token_auth(token);
+}
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+void Client::set_digest_auth(const std::string &username,
+                                    const std::string &password) {
+  cli_->set_digest_auth(username, password);
+}
+#endif
+
+void Client::set_keep_alive(bool on) { cli_->set_keep_alive(on); }
+void Client::set_follow_location(bool on) {
+  cli_->set_follow_location(on);
+}
+
+void Client::set_url_encode(bool on) { cli_->set_url_encode(on); }
+
+void Client::set_compress(bool on) { cli_->set_compress(on); }
+
+void Client::set_decompress(bool on) { cli_->set_decompress(on); }
+
+void Client::set_interface(const std::string &intf) {
+  cli_->set_interface(intf);
+}
+
+void Client::set_proxy(const std::string &host, int port) {
+  cli_->set_proxy(host, port);
+}
+void Client::set_proxy_basic_auth(const std::string &username,
+                                         const std::string &password) {
+  cli_->set_proxy_basic_auth(username, password);
+}
+void Client::set_proxy_bearer_token_auth(const std::string &token) {
+  cli_->set_proxy_bearer_token_auth(token);
+}
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+void Client::set_proxy_digest_auth(const std::string &username,
+                                          const std::string &password) {
+  cli_->set_proxy_digest_auth(username, password);
+}
+#endif
+
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+void Client::enable_server_certificate_verification(bool enabled) {
+  cli_->enable_server_certificate_verification(enabled);
+}
+#endif
+
+void Client::set_logger(Logger logger) { cli_->set_logger(logger); }
+
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+void Client::set_ca_cert_path(const std::string &ca_cert_file_path,
+                                     const std::string &ca_cert_dir_path) {
+  cli_->set_ca_cert_path(ca_cert_file_path, ca_cert_dir_path);
+}
+
+void Client::set_ca_cert_store(X509_STORE *ca_cert_store) {
+  if (is_ssl_) {
+    static_cast<SSLClient &>(*cli_).set_ca_cert_store(ca_cert_store);
+  } else {
+    cli_->set_ca_cert_store(ca_cert_store);
+  }
+}
+
+long Client::get_openssl_verify_result() const {
+  if (is_ssl_) {
+    return static_cast<SSLClient &>(*cli_).get_openssl_verify_result();
+  }
+  return -1; // NOTE: -1 doesn't match any of X509_V_ERR_???
+}
+
+SSL_CTX *Client::ssl_context() const {
+  if (is_ssl_) { return static_cast<SSLClient &>(*cli_).ssl_context(); }
+  return nullptr;
+}
+#endif
+
+} // namespace httplib

3rdparty/httplib/httplib.h

@@ -0,0 +1,1904 @@
+//
+//  httplib.h
+//
+//  Copyright (c) 2022 Yuji Hirose. All rights reserved.
+//  MIT License
+//
+
+#ifndef CPPHTTPLIB_HTTPLIB_H
+#define CPPHTTPLIB_HTTPLIB_H
+
+#define CPPHTTPLIB_VERSION "0.11.1"
+
+/*
+ * Configuration
+ */
+
+#ifndef CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND
+#define CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND 5
+#endif
+
+#ifndef CPPHTTPLIB_KEEPALIVE_MAX_COUNT
+#define CPPHTTPLIB_KEEPALIVE_MAX_COUNT 5
+#endif
+
+#ifndef CPPHTTPLIB_CONNECTION_TIMEOUT_SECOND
+#define CPPHTTPLIB_CONNECTION_TIMEOUT_SECOND 300
+#endif
+
+#ifndef CPPHTTPLIB_CONNECTION_TIMEOUT_USECOND
+#define CPPHTTPLIB_CONNECTION_TIMEOUT_USECOND 0
+#endif
+
+#ifndef CPPHTTPLIB_READ_TIMEOUT_SECOND
+#define CPPHTTPLIB_READ_TIMEOUT_SECOND 5
+#endif
+
+#ifndef CPPHTTPLIB_READ_TIMEOUT_USECOND
+#define CPPHTTPLIB_READ_TIMEOUT_USECOND 0
+#endif
+
+#ifndef CPPHTTPLIB_WRITE_TIMEOUT_SECOND
+#define CPPHTTPLIB_WRITE_TIMEOUT_SECOND 5
+#endif
+
+#ifndef CPPHTTPLIB_WRITE_TIMEOUT_USECOND
+#define CPPHTTPLIB_WRITE_TIMEOUT_USECOND 0
+#endif
+
+#ifndef CPPHTTPLIB_IDLE_INTERVAL_SECOND
+#define CPPHTTPLIB_IDLE_INTERVAL_SECOND 0
+#endif
+
+#ifndef CPPHTTPLIB_IDLE_INTERVAL_USECOND
+#ifdef _WIN32
+#define CPPHTTPLIB_IDLE_INTERVAL_USECOND 10000
+#else
+#define CPPHTTPLIB_IDLE_INTERVAL_USECOND 0
+#endif
+#endif
+
+#ifndef CPPHTTPLIB_REQUEST_URI_MAX_LENGTH
+#define CPPHTTPLIB_REQUEST_URI_MAX_LENGTH 8192
+#endif
+
+#ifndef CPPHTTPLIB_HEADER_MAX_LENGTH
+#define CPPHTTPLIB_HEADER_MAX_LENGTH 8192
+#endif
+
+#ifndef CPPHTTPLIB_REDIRECT_MAX_COUNT
+#define CPPHTTPLIB_REDIRECT_MAX_COUNT 20
+#endif
+
+#ifndef CPPHTTPLIB_MULTIPART_FORM_DATA_FILE_MAX_COUNT
+#define CPPHTTPLIB_MULTIPART_FORM_DATA_FILE_MAX_COUNT 1024
+#endif
+
+#ifndef CPPHTTPLIB_PAYLOAD_MAX_LENGTH
+#define CPPHTTPLIB_PAYLOAD_MAX_LENGTH ((std::numeric_limits<size_t>::max)())
+#endif
+
+#ifndef CPPHTTPLIB_FORM_URL_ENCODED_PAYLOAD_MAX_LENGTH
+#define CPPHTTPLIB_FORM_URL_ENCODED_PAYLOAD_MAX_LENGTH 8192
+#endif
+
+#ifndef CPPHTTPLIB_TCP_NODELAY
+#define CPPHTTPLIB_TCP_NODELAY false
+#endif
+
+#ifndef CPPHTTPLIB_RECV_BUFSIZ
+#define CPPHTTPLIB_RECV_BUFSIZ size_t(4096u)
+#endif
+
+#ifndef CPPHTTPLIB_COMPRESSION_BUFSIZ
+#define CPPHTTPLIB_COMPRESSION_BUFSIZ size_t(16384u)
+#endif
+
+#ifndef CPPHTTPLIB_THREAD_POOL_COUNT
+#define CPPHTTPLIB_THREAD_POOL_COUNT                                           \
+  ((std::max)(8u, std::thread::hardware_concurrency() > 0                      \
+                      ? std::thread::hardware_concurrency() - 1                \
+                      : 0))
+#endif
+
+#ifndef CPPHTTPLIB_RECV_FLAGS
+#define CPPHTTPLIB_RECV_FLAGS 0
+#endif
+
+#ifndef CPPHTTPLIB_SEND_FLAGS
+#define CPPHTTPLIB_SEND_FLAGS 0
+#endif
+
+#ifndef CPPHTTPLIB_LISTEN_BACKLOG
+#define CPPHTTPLIB_LISTEN_BACKLOG 5
+#endif
+
+/*
+ * Headers
+ */
+
+#ifdef _WIN32
+#ifndef _CRT_SECURE_NO_WARNINGS
+#define _CRT_SECURE_NO_WARNINGS
+#endif //_CRT_SECURE_NO_WARNINGS
+
+#ifndef _CRT_NONSTDC_NO_DEPRECATE
+#define _CRT_NONSTDC_NO_DEPRECATE
+#endif //_CRT_NONSTDC_NO_DEPRECATE
+
+#if defined(_MSC_VER)
+#if _MSC_VER < 1900
+#error Sorry, Visual Studio versions prior to 2015 are not supported
+#endif
+
+#pragma comment(lib, "ws2_32.lib")
+
+#ifdef _WIN64
+using ssize_t = __int64;
+#else
+using ssize_t = long;
+#endif
+#endif // _MSC_VER
+
+#ifndef S_ISREG
+#define S_ISREG(m) (((m)&S_IFREG) == S_IFREG)
+#endif // S_ISREG
+
+#ifndef S_ISDIR
+#define S_ISDIR(m) (((m)&S_IFDIR) == S_IFDIR)
+#endif // S_ISDIR
+
+#ifndef NOMINMAX
+#define NOMINMAX
+#endif // NOMINMAX
+
+#include <io.h>
+#include <winsock2.h>
+#include <ws2tcpip.h>
+
+#ifndef WSA_FLAG_NO_HANDLE_INHERIT
+#define WSA_FLAG_NO_HANDLE_INHERIT 0x80
+#endif
+
+#ifndef strcasecmp
+#define strcasecmp _stricmp
+#endif // strcasecmp
+
+using socket_t = SOCKET;
+#ifdef CPPHTTPLIB_USE_POLL
+#define poll(fds, nfds, timeout) WSAPoll(fds, nfds, timeout)
+#endif
+
+#else // not _WIN32
+
+#include <arpa/inet.h>
+#include <ifaddrs.h>
+#include <net/if.h>
+#include <netdb.h>
+#include <netinet/in.h>
+#ifdef __linux__
+#include <resolv.h>
+#endif
+#include <netinet/tcp.h>
+#ifdef CPPHTTPLIB_USE_POLL
+#include <poll.h>
+#endif
+#include <csignal>
+#include <pthread.h>
+#include <sys/select.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <unistd.h>
+
+using socket_t = int;
+#ifndef INVALID_SOCKET
+#define INVALID_SOCKET (-1)
+#endif
+#endif //_WIN32
+
+#include <algorithm>
+#include <array>
+#include <atomic>
+#include <cassert>
+#include <cctype>
+#include <climits>
+#include <condition_variable>
+#include <cstring>
+#include <errno.h>
+#include <fcntl.h>
+#include <fstream>
+#include <functional>
+#include <iomanip>
+#include <iostream>
+#include <list>
+#include <map>
+#include <memory>
+#include <mutex>
+#include <random>
+#include <regex>
+#include <set>
+#include <sstream>
+#include <string>
+#include <sys/stat.h>
+#include <thread>
+
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+#ifdef _WIN32
+#include <wincrypt.h>
+
+// these are defined in wincrypt.h and it breaks compilation if BoringSSL is
+// used
+#undef X509_NAME
+#undef X509_CERT_PAIR
+#undef X509_EXTENSIONS
+#undef PKCS7_SIGNER_INFO
+
+#ifdef _MSC_VER
+#pragma comment(lib, "crypt32.lib")
+#pragma comment(lib, "cryptui.lib")
+#endif
+#endif //_WIN32
+
+#include <openssl/err.h>
+#include <openssl/evp.h>
+#include <openssl/ssl.h>
+#include <openssl/x509v3.h>
+
+#if defined(_WIN32) && defined(OPENSSL_USE_APPLINK)
+#include <openssl/applink.c>
+#endif
+
+#include <iostream>
+#include <sstream>
+
+#if OPENSSL_VERSION_NUMBER < 0x1010100fL
+#error Sorry, OpenSSL versions prior to 1.1.1 are not supported
+#endif
+
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
+#include <openssl/crypto.h>
+inline const unsigned char *ASN1_STRING_get0_data(const ASN1_STRING *asn1) {
+  return M_ASN1_STRING_data(asn1);
+}
+#endif
+#endif
+
+#ifdef CPPHTTPLIB_ZLIB_SUPPORT
+#include <zlib.h>
+#endif
+
+#ifdef CPPHTTPLIB_BROTLI_SUPPORT
+#include <brotli/decode.h>
+#include <brotli/encode.h>
+#endif
+
+/*
+ * Declaration
+ */
+namespace httplib {
+
+namespace detail {
+
+/*
+ * Backport std::make_unique from C++14.
+ *
+ * NOTE: This code came up with the following stackoverflow post:
+ * https://stackoverflow.com/questions/10149840/c-arrays-and-make-unique
+ *
+ */
+
+template <class T, class... Args>
+typename std::enable_if<!std::is_array<T>::value, std::unique_ptr<T>>::type
+make_unique(Args &&...args) {
+  return std::unique_ptr<T>(new T(std::forward<Args>(args)...));
+}
+
+template <class T>
+typename std::enable_if<std::is_array<T>::value, std::unique_ptr<T>>::type
+make_unique(std::size_t n) {
+  typedef typename std::remove_extent<T>::type RT;
+  return std::unique_ptr<T>(new RT[n]);
+}
+
+struct ci {
+  bool operator()(const std::string &s1, const std::string &s2) const {
+    return std::lexicographical_compare(s1.begin(), s1.end(), s2.begin(),
+                                        s2.end(),
+                                        [](unsigned char c1, unsigned char c2) {
+                                          return ::tolower(c1) < ::tolower(c2);
+                                        });
+  }
+};
+
+} // namespace detail
+
+using Headers = std::multimap<std::string, std::string, detail::ci>;
+
+using Params = std::multimap<std::string, std::string>;
+using Match = std::smatch;
+
+using Progress = std::function<bool(uint64_t current, uint64_t total)>;
+
+struct Response;
+using ResponseHandler = std::function<bool(const Response &response)>;
+
+struct MultipartFormData {
+  std::string name;
+  std::string content;
+  std::string filename;
+  std::string content_type;
+};
+using MultipartFormDataItems = std::vector<MultipartFormData>;
+using MultipartFormDataMap = std::multimap<std::string, MultipartFormData>;
+
+class DataSink {
+public:
+  DataSink() : os(&sb_), sb_(*this) {}
+
+  DataSink(const DataSink &) = delete;
+  DataSink &operator=(const DataSink &) = delete;
+  DataSink(DataSink &&) = delete;
+  DataSink &operator=(DataSink &&) = delete;
+
+  std::function<bool(const char *data, size_t data_len)> write;
+  std::function<void()> done;
+  std::function<bool()> is_writable;
+  std::ostream os;
+
+private:
+  class data_sink_streambuf : public std::streambuf {
+  public:
+    explicit data_sink_streambuf(DataSink &sink) : sink_(sink) {}
+
+  protected:
+    std::streamsize xsputn(const char *s, std::streamsize n) {
+      sink_.write(s, static_cast<size_t>(n));
+      return n;
+    }
+
+  private:
+    DataSink &sink_;
+  };
+
+  data_sink_streambuf sb_;
+};
+
+using ContentProvider =
+    std::function<bool(size_t offset, size_t length, DataSink &sink)>;
+
+using ContentProviderWithoutLength =
+    std::function<bool(size_t offset, DataSink &sink)>;
+
+using ContentProviderResourceReleaser = std::function<void(bool success)>;
+
+using ContentReceiverWithProgress =
+    std::function<bool(const char *data, size_t data_length, uint64_t offset,
+                       uint64_t total_length)>;
+
+using ContentReceiver =
+    std::function<bool(const char *data, size_t data_length)>;
+
+using MultipartContentHeader =
+    std::function<bool(const MultipartFormData &file)>;
+
+class ContentReader {
+public:
+  using Reader = std::function<bool(ContentReceiver receiver)>;
+  using MultipartReader = std::function<bool(MultipartContentHeader header,
+                                             ContentReceiver receiver)>;
+
+  ContentReader(Reader reader, MultipartReader multipart_reader)
+      : reader_(std::move(reader)),
+        multipart_reader_(std::move(multipart_reader)) {}
+
+  bool operator()(MultipartContentHeader header,
+                  ContentReceiver receiver) const {
+    return multipart_reader_(std::move(header), std::move(receiver));
+  }
+
+  bool operator()(ContentReceiver receiver) const {
+    return reader_(std::move(receiver));
+  }
+
+  Reader reader_;
+  MultipartReader multipart_reader_;
+};
+
+using Range = std::pair<ssize_t, ssize_t>;
+using Ranges = std::vector<Range>;
+
+struct Request {
+  std::string method;
+  std::string path;
+  Headers headers;
+  std::string body;
+
+  std::string remote_addr;
+  int remote_port = -1;
+
+  // for server
+  std::string version;
+  std::string target;
+  Params params;
+  MultipartFormDataMap files;
+  Ranges ranges;
+  Match matches;
+
+  // for client
+  ResponseHandler response_handler;
+  ContentReceiverWithProgress content_receiver;
+  Progress progress;
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+  const SSL *ssl = nullptr;
+#endif
+
+  bool has_header(const std::string &key) const;
+  std::string get_header_value(const std::string &key, size_t id = 0) const;
+  template <typename T>
+  T get_header_value(const std::string &key, size_t id = 0) const;
+  size_t get_header_value_count(const std::string &key) const;
+  void set_header(const std::string &key, const std::string &val);
+
+  bool has_param(const std::string &key) const;
+  std::string get_param_value(const std::string &key, size_t id = 0) const;
+  size_t get_param_value_count(const std::string &key) const;
+
+  bool is_multipart_form_data() const;
+
+  bool has_file(const std::string &key) const;
+  MultipartFormData get_file_value(const std::string &key) const;
+
+  // private members...
+  size_t redirect_count_ = CPPHTTPLIB_REDIRECT_MAX_COUNT;
+  size_t content_length_ = 0;
+  ContentProvider content_provider_;
+  bool is_chunked_content_provider_ = false;
+  size_t authorization_count_ = 0;
+};
+
+struct Response {
+  std::string version;
+  int status = -1;
+  std::string reason;
+  Headers headers;
+  std::string body;
+  std::string location; // Redirect location
+
+  bool has_header(const std::string &key) const;
+  std::string get_header_value(const std::string &key, size_t id = 0) const;
+  template <typename T>
+  T get_header_value(const std::string &key, size_t id = 0) const;
+  size_t get_header_value_count(const std::string &key) const;
+  void set_header(const std::string &key, const std::string &val);
+
+  void set_redirect(const std::string &url, int status = 302);
+  void set_content(const char *s, size_t n, const std::string &content_type);
+  void set_content(const std::string &s, const std::string &content_type);
+
+  void set_content_provider(
+      size_t length, const std::string &content_type, ContentProvider provider,
+      ContentProviderResourceReleaser resource_releaser = nullptr);
+
+  void set_content_provider(
+      const std::string &content_type, ContentProviderWithoutLength provider,
+      ContentProviderResourceReleaser resource_releaser = nullptr);
+
+  void set_chunked_content_provider(
+      const std::string &content_type, ContentProviderWithoutLength provider,
+      ContentProviderResourceReleaser resource_releaser = nullptr);
+
+  Response() = default;
+  Response(const Response &) = default;
+  Response &operator=(const Response &) = default;
+  Response(Response &&) = default;
+  Response &operator=(Response &&) = default;
+  ~Response() {
+    if (content_provider_resource_releaser_) {
+      content_provider_resource_releaser_(content_provider_success_);
+    }
+  }
+
+  // private members...
+  size_t content_length_ = 0;
+  ContentProvider content_provider_;
+  ContentProviderResourceReleaser content_provider_resource_releaser_;
+  bool is_chunked_content_provider_ = false;
+  bool content_provider_success_ = false;
+};
+
+class Stream {
+public:
+  virtual ~Stream() = default;
+
+  virtual bool is_readable() const = 0;
+  virtual bool is_writable() const = 0;
+
+  virtual ssize_t read(char *ptr, size_t size) = 0;
+  virtual ssize_t write(const char *ptr, size_t size) = 0;
+  virtual void get_remote_ip_and_port(std::string &ip, int &port) const = 0;
+  virtual socket_t socket() const = 0;
+
+  template <typename... Args>
+  ssize_t write_format(const char *fmt, const Args &...args);
+  ssize_t write(const char *ptr);
+  ssize_t write(const std::string &s);
+};
+
+class TaskQueue {
+public:
+  TaskQueue() = default;
+  virtual ~TaskQueue() = default;
+
+  virtual void enqueue(std::function<void()> fn) = 0;
+  virtual void shutdown() = 0;
+
+  virtual void on_idle() {}
+};
+
+class ThreadPool : public TaskQueue {
+public:
+  explicit ThreadPool(size_t n) : shutdown_(false) {
+    while (n) {
+      threads_.emplace_back(worker(*this));
+      n--;
+    }
+  }
+
+  ThreadPool(const ThreadPool &) = delete;
+  ~ThreadPool() override = default;
+
+  void enqueue(std::function<void()> fn) override {
+    std::unique_lock<std::mutex> lock(mutex_);
+    jobs_.push_back(std::move(fn));
+    cond_.notify_one();
+  }
+
+  void shutdown() override {
+    // Stop all worker threads...
+    {
+      std::unique_lock<std::mutex> lock(mutex_);
+      shutdown_ = true;
+    }
+
+    cond_.notify_all();
+
+    // Join...
+    for (auto &t : threads_) {
+      t.join();
+    }
+  }
+
+private:
+  struct worker {
+    explicit worker(ThreadPool &pool) : pool_(pool) {}
+
+    void operator()() {
+      for (;;) {
+        std::function<void()> fn;
+        {
+          std::unique_lock<std::mutex> lock(pool_.mutex_);
+
+          pool_.cond_.wait(
+              lock, [&] { return !pool_.jobs_.empty() || pool_.shutdown_; });
+
+          if (pool_.shutdown_ && pool_.jobs_.empty()) { break; }
+
+          fn = pool_.jobs_.front();
+          pool_.jobs_.pop_front();
+        }
+
+        assert(true == static_cast<bool>(fn));
+        fn();
+      }
+    }
+
+    ThreadPool &pool_;
+  };
+  friend struct worker;
+
+  std::vector<std::thread> threads_;
+  std::list<std::function<void()>> jobs_;
+
+  bool shutdown_;
+
+  std::condition_variable cond_;
+  std::mutex mutex_;
+};
+
+using Logger = std::function<void(const Request &, const Response &)>;
+
+using SocketOptions = std::function<void(socket_t sock)>;
+
+void default_socket_options(socket_t sock);
+
+class Server {
+public:
+  using Handler = std::function<void(const Request &, Response &)>;
+
+  using ExceptionHandler =
+      std::function<void(const Request &, Response &, std::exception_ptr ep)>;
+
+  enum class HandlerResponse {
+    Handled,
+    Unhandled,
+  };
+  using HandlerWithResponse =
+      std::function<HandlerResponse(const Request &, Response &)>;
+
+  using HandlerWithContentReader = std::function<void(
+      const Request &, Response &, const ContentReader &content_reader)>;
+
+  using Expect100ContinueHandler =
+      std::function<int(const Request &, Response &)>;
+
+  Server();
+
+  virtual ~Server();
+
+  virtual bool is_valid() const;
+
+  Server &Get(const std::string &pattern, Handler handler);
+  Server &Post(const std::string &pattern, Handler handler);
+  Server &Post(const std::string &pattern, HandlerWithContentReader handler);
+  Server &Put(const std::string &pattern, Handler handler);
+  Server &Put(const std::string &pattern, HandlerWithContentReader handler);
+  Server &Patch(const std::string &pattern, Handler handler);
+  Server &Patch(const std::string &pattern, HandlerWithContentReader handler);
+  Server &Delete(const std::string &pattern, Handler handler);
+  Server &Delete(const std::string &pattern, HandlerWithContentReader handler);
+  Server &Options(const std::string &pattern, Handler handler);
+
+  bool set_base_dir(const std::string &dir,
+                    const std::string &mount_point = std::string());
+  bool set_mount_point(const std::string &mount_point, const std::string &dir,
+                       Headers headers = Headers());
+  bool remove_mount_point(const std::string &mount_point);
+  Server &set_file_extension_and_mimetype_mapping(const std::string &ext,
+                                                  const std::string &mime);
+  Server &set_file_request_handler(Handler handler);
+
+  Server &set_error_handler(HandlerWithResponse handler);
+  Server &set_error_handler(Handler handler);
+  Server &set_exception_handler(ExceptionHandler handler);
+  Server &set_pre_routing_handler(HandlerWithResponse handler);
+  Server &set_post_routing_handler(Handler handler);
+
+  Server &set_expect_100_continue_handler(Expect100ContinueHandler handler);
+  Server &set_logger(Logger logger);
+
+  Server &set_address_family(int family);
+  Server &set_tcp_nodelay(bool on);
+  Server &set_socket_options(SocketOptions socket_options);
+
+  Server &set_default_headers(Headers headers);
+
+  Server &set_keep_alive_max_count(size_t count);
+  Server &set_keep_alive_timeout(time_t sec);
+
+  Server &set_read_timeout(time_t sec, time_t usec = 0);
+  template <class Rep, class Period>
+  Server &set_read_timeout(const std::chrono::duration<Rep, Period> &duration);
+
+  Server &set_write_timeout(time_t sec, time_t usec = 0);
+  template <class Rep, class Period>
+  Server &set_write_timeout(const std::chrono::duration<Rep, Period> &duration);
+
+  Server &set_idle_interval(time_t sec, time_t usec = 0);
+  template <class Rep, class Period>
+  Server &set_idle_interval(const std::chrono::duration<Rep, Period> &duration);
+
+  Server &set_payload_max_length(size_t length);
+
+  bool bind_to_port(const std::string &host, int port, int socket_flags = 0);
+  int bind_to_any_port(const std::string &host, int socket_flags = 0);
+  bool listen_after_bind();
+
+  bool listen(const std::string &host, int port, int socket_flags = 0);
+
+  bool is_running() const;
+  void stop();
+
+  std::function<TaskQueue *(void)> new_task_queue;
+
+protected:
+  bool process_request(Stream &strm, bool close_connection,
+                       bool &connection_closed,
+                       const std::function<void(Request &)> &setup_request);
+
+  std::atomic<socket_t> svr_sock_;
+  size_t keep_alive_max_count_ = CPPHTTPLIB_KEEPALIVE_MAX_COUNT;
+  time_t keep_alive_timeout_sec_ = CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND;
+  time_t read_timeout_sec_ = CPPHTTPLIB_READ_TIMEOUT_SECOND;
+  time_t read_timeout_usec_ = CPPHTTPLIB_READ_TIMEOUT_USECOND;
+  time_t write_timeout_sec_ = CPPHTTPLIB_WRITE_TIMEOUT_SECOND;
+  time_t write_timeout_usec_ = CPPHTTPLIB_WRITE_TIMEOUT_USECOND;
+  time_t idle_interval_sec_ = CPPHTTPLIB_IDLE_INTERVAL_SECOND;
+  time_t idle_interval_usec_ = CPPHTTPLIB_IDLE_INTERVAL_USECOND;
+  size_t payload_max_length_ = CPPHTTPLIB_PAYLOAD_MAX_LENGTH;
+
+private:
+  using Handlers = std::vector<std::pair<std::regex, Handler>>;
+  using HandlersForContentReader =
+      std::vector<std::pair<std::regex, HandlerWithContentReader>>;
+
+  socket_t create_server_socket(const std::string &host, int port,
+                                int socket_flags,
+                                SocketOptions socket_options) const;
+  int bind_internal(const std::string &host, int port, int socket_flags);
+  bool listen_internal();
+
+  bool routing(Request &req, Response &res, Stream &strm);
+  bool handle_file_request(const Request &req, Response &res,
+                           bool head = false);
+  bool dispatch_request(Request &req, Response &res, const Handlers &handlers);
+  bool
+  dispatch_request_for_content_reader(Request &req, Response &res,
+                                      ContentReader content_reader,
+                                      const HandlersForContentReader &handlers);
+
+  bool parse_request_line(const char *s, Request &req);
+  void apply_ranges(const Request &req, Response &res,
+                    std::string &content_type, std::string &boundary);
+  bool write_response(Stream &strm, bool close_connection, const Request &req,
+                      Response &res);
+  bool write_response_with_content(Stream &strm, bool close_connection,
+                                   const Request &req, Response &res);
+  bool write_response_core(Stream &strm, bool close_connection,
+                           const Request &req, Response &res,
+                           bool need_apply_ranges);
+  bool write_content_with_provider(Stream &strm, const Request &req,
+                                   Response &res, const std::string &boundary,
+                                   const std::string &content_type);
+  bool read_content(Stream &strm, Request &req, Response &res);
+  bool
+  read_content_with_content_receiver(Stream &strm, Request &req, Response &res,
+                                     ContentReceiver receiver,
+                                     MultipartContentHeader multipart_header,
+                                     ContentReceiver multipart_receiver);
+  bool read_content_core(Stream &strm, Request &req, Response &res,
+                         ContentReceiver receiver,
+                         MultipartContentHeader mulitpart_header,
+                         ContentReceiver multipart_receiver);
+
+  virtual bool process_and_close_socket(socket_t sock);
+
+  struct MountPointEntry {
+    std::string mount_point;
+    std::string base_dir;
+    Headers headers;
+  };
+  std::vector<MountPointEntry> base_dirs_;
+
+  std::atomic<bool> is_running_;
+  std::map<std::string, std::string> file_extension_and_mimetype_map_;
+  Handler file_request_handler_;
+  Handlers get_handlers_;
+  Handlers post_handlers_;
+  HandlersForContentReader post_handlers_for_content_reader_;
+  Handlers put_handlers_;
+  HandlersForContentReader put_handlers_for_content_reader_;
+  Handlers patch_handlers_;
+  HandlersForContentReader patch_handlers_for_content_reader_;
+  Handlers delete_handlers_;
+  HandlersForContentReader delete_handlers_for_content_reader_;
+  Handlers options_handlers_;
+  HandlerWithResponse error_handler_;
+  ExceptionHandler exception_handler_;
+  HandlerWithResponse pre_routing_handler_;
+  Handler post_routing_handler_;
+  Logger logger_;
+  Expect100ContinueHandler expect_100_continue_handler_;
+
+  int address_family_ = AF_UNSPEC;
+  bool tcp_nodelay_ = CPPHTTPLIB_TCP_NODELAY;
+  SocketOptions socket_options_ = default_socket_options;
+
+  Headers default_headers_;
+};
+
+enum class Error {
+  Success = 0,
+  Unknown,
+  Connection,
+  BindIPAddress,
+  Read,
+  Write,
+  ExceedRedirectCount,
+  Canceled,
+  SSLConnection,
+  SSLLoadingCerts,
+  SSLServerVerification,
+  UnsupportedMultipartBoundaryChars,
+  Compression,
+  ConnectionTimeout,
+};
+
+std::string to_string(const Error error);
+
+std::ostream &operator<<(std::ostream &os, const Error &obj);
+
+class Result {
+public:
+  Result(std::unique_ptr<Response> &&res, Error err,
+         Headers &&request_headers = Headers{})
+      : res_(std::move(res)), err_(err),
+        request_headers_(std::move(request_headers)) {}
+  // Response
+  operator bool() const { return res_ != nullptr; }
+  bool operator==(std::nullptr_t) const { return res_ == nullptr; }
+  bool operator!=(std::nullptr_t) const { return res_ != nullptr; }
+  const Response &value() const { return *res_; }
+  Response &value() { return *res_; }
+  const Response &operator*() const { return *res_; }
+  Response &operator*() { return *res_; }
+  const Response *operator->() const { return res_.get(); }
+  Response *operator->() { return res_.get(); }
+
+  // Error
+  Error error() const { return err_; }
+
+  // Request Headers
+  bool has_request_header(const std::string &key) const;
+  std::string get_request_header_value(const std::string &key,
+                                       size_t id = 0) const;
+  template <typename T>
+  T get_request_header_value(const std::string &key, size_t id = 0) const;
+  size_t get_request_header_value_count(const std::string &key) const;
+
+private:
+  std::unique_ptr<Response> res_;
+  Error err_;
+  Headers request_headers_;
+};
+
+class ClientImpl {
+public:
+  explicit ClientImpl(const std::string &host);
+
+  explicit ClientImpl(const std::string &host, int port);
+
+  explicit ClientImpl(const std::string &host, int port,
+                      const std::string &client_cert_path,
+                      const std::string &client_key_path);
+
+  virtual ~ClientImpl();
+
+  virtual bool is_valid() const;
+
+  Result Get(const std::string &path);
+  Result Get(const std::string &path, const Headers &headers);
+  Result Get(const std::string &path, Progress progress);
+  Result Get(const std::string &path, const Headers &headers,
+             Progress progress);
+  Result Get(const std::string &path, ContentReceiver content_receiver);
+  Result Get(const std::string &path, const Headers &headers,
+             ContentReceiver content_receiver);
+  Result Get(const std::string &path, ContentReceiver content_receiver,
+             Progress progress);
+  Result Get(const std::string &path, const Headers &headers,
+             ContentReceiver content_receiver, Progress progress);
+  Result Get(const std::string &path, ResponseHandler response_handler,
+             ContentReceiver content_receiver);
+  Result Get(const std::string &path, const Headers &headers,
+             ResponseHandler response_handler,
+             ContentReceiver content_receiver);
+  Result Get(const std::string &path, ResponseHandler response_handler,
+             ContentReceiver content_receiver, Progress progress);
+  Result Get(const std::string &path, const Headers &headers,
+             ResponseHandler response_handler, ContentReceiver content_receiver,
+             Progress progress);
+
+  Result Get(const std::string &path, const Params &params,
+             const Headers &headers, Progress progress = nullptr);
+  Result Get(const std::string &path, const Params &params,
+             const Headers &headers, ContentReceiver content_receiver,
+             Progress progress = nullptr);
+  Result Get(const std::string &path, const Params &params,
+             const Headers &headers, ResponseHandler response_handler,
+             ContentReceiver content_receiver, Progress progress = nullptr);
+
+  Result Head(const std::string &path);
+  Result Head(const std::string &path, const Headers &headers);
+
+  Result Post(const std::string &path);
+  Result Post(const std::string &path, const char *body, size_t content_length,
+              const std::string &content_type);
+  Result Post(const std::string &path, const Headers &headers, const char *body,
+              size_t content_length, const std::string &content_type);
+  Result Post(const std::string &path, const std::string &body,
+              const std::string &content_type);
+  Result Post(const std::string &path, const Headers &headers,
+              const std::string &body, const std::string &content_type);
+  Result Post(const std::string &path, size_t content_length,
+              ContentProvider content_provider,
+              const std::string &content_type);
+  Result Post(const std::string &path,
+              ContentProviderWithoutLength content_provider,
+              const std::string &content_type);
+  Result Post(const std::string &path, const Headers &headers,
+              size_t content_length, ContentProvider content_provider,
+              const std::string &content_type);
+  Result Post(const std::string &path, const Headers &headers,
+              ContentProviderWithoutLength content_provider,
+              const std::string &content_type);
+  Result Post(const std::string &path, const Params &params);
+  Result Post(const std::string &path, const Headers &headers,
+              const Params &params);
+  Result Post(const std::string &path, const MultipartFormDataItems &items);
+  Result Post(const std::string &path, const Headers &headers,
+              const MultipartFormDataItems &items);
+  Result Post(const std::string &path, const Headers &headers,
+              const MultipartFormDataItems &items, const std::string &boundary);
+
+  Result Put(const std::string &path);
+  Result Put(const std::string &path, const char *body, size_t content_length,
+             const std::string &content_type);
+  Result Put(const std::string &path, const Headers &headers, const char *body,
+             size_t content_length, const std::string &content_type);
+  Result Put(const std::string &path, const std::string &body,
+             const std::string &content_type);
+  Result Put(const std::string &path, const Headers &headers,
+             const std::string &body, const std::string &content_type);
+  Result Put(const std::string &path, size_t content_length,
+             ContentProvider content_provider, const std::string &content_type);
+  Result Put(const std::string &path,
+             ContentProviderWithoutLength content_provider,
+             const std::string &content_type);
+  Result Put(const std::string &path, const Headers &headers,
+             size_t content_length, ContentProvider content_provider,
+             const std::string &content_type);
+  Result Put(const std::string &path, const Headers &headers,
+             ContentProviderWithoutLength content_provider,
+             const std::string &content_type);
+  Result Put(const std::string &path, const Params &params);
+  Result Put(const std::string &path, const Headers &headers,
+             const Params &params);
+  Result Put(const std::string &path, const MultipartFormDataItems &items);
+  Result Put(const std::string &path, const Headers &headers,
+             const MultipartFormDataItems &items);
+  Result Put(const std::string &path, const Headers &headers,
+             const MultipartFormDataItems &items, const std::string &boundary);
+
+  Result Patch(const std::string &path);
+  Result Patch(const std::string &path, const char *body, size_t content_length,
+               const std::string &content_type);
+  Result Patch(const std::string &path, const Headers &headers,
+               const char *body, size_t content_length,
+               const std::string &content_type);
+  Result Patch(const std::string &path, const std::string &body,
+               const std::string &content_type);
+  Result Patch(const std::string &path, const Headers &headers,
+               const std::string &body, const std::string &content_type);
+  Result Patch(const std::string &path, size_t content_length,
+               ContentProvider content_provider,
+               const std::string &content_type);
+  Result Patch(const std::string &path,
+               ContentProviderWithoutLength content_provider,
+               const std::string &content_type);
+  Result Patch(const std::string &path, const Headers &headers,
+               size_t content_length, ContentProvider content_provider,
+               const std::string &content_type);
+  Result Patch(const std::string &path, const Headers &headers,
+               ContentProviderWithoutLength content_provider,
+               const std::string &content_type);
+
+  Result Delete(const std::string &path);
+  Result Delete(const std::string &path, const Headers &headers);
+  Result Delete(const std::string &path, const char *body,
+                size_t content_length, const std::string &content_type);
+  Result Delete(const std::string &path, const Headers &headers,
+                const char *body, size_t content_length,
+                const std::string &content_type);
+  Result Delete(const std::string &path, const std::string &body,
+                const std::string &content_type);
+  Result Delete(const std::string &path, const Headers &headers,
+                const std::string &body, const std::string &content_type);
+
+  Result Options(const std::string &path);
+  Result Options(const std::string &path, const Headers &headers);
+
+  bool send(Request &req, Response &res, Error &error);
+  Result send(const Request &req);
+
+  size_t is_socket_open() const;
+
+  socket_t socket() const;
+
+  void stop();
+
+  void set_hostname_addr_map(std::map<std::string, std::string> addr_map);
+
+  void set_default_headers(Headers headers);
+
+  void set_address_family(int family);
+  void set_tcp_nodelay(bool on);
+  void set_socket_options(SocketOptions socket_options);
+
+  void set_connection_timeout(time_t sec, time_t usec = 0);
+  template <class Rep, class Period>
+  void
+  set_connection_timeout(const std::chrono::duration<Rep, Period> &duration);
+
+  void set_read_timeout(time_t sec, time_t usec = 0);
+  template <class Rep, class Period>
+  void set_read_timeout(const std::chrono::duration<Rep, Period> &duration);
+
+  void set_write_timeout(time_t sec, time_t usec = 0);
+  template <class Rep, class Period>
+  void set_write_timeout(const std::chrono::duration<Rep, Period> &duration);
+
+  void set_basic_auth(const std::string &username, const std::string &password);
+  void set_bearer_token_auth(const std::string &token);
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+  void set_digest_auth(const std::string &username,
+                       const std::string &password);
+#endif
+
+  void set_keep_alive(bool on);
+  void set_follow_location(bool on);
+
+  void set_url_encode(bool on);
+
+  void set_compress(bool on);
+
+  void set_decompress(bool on);
+
+  void set_interface(const std::string &intf);
+
+  void set_proxy(const std::string &host, int port);
+  void set_proxy_basic_auth(const std::string &username,
+                            const std::string &password);
+  void set_proxy_bearer_token_auth(const std::string &token);
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+  void set_proxy_digest_auth(const std::string &username,
+                             const std::string &password);
+#endif
+
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+  void set_ca_cert_path(const std::string &ca_cert_file_path,
+                        const std::string &ca_cert_dir_path = std::string());
+  void set_ca_cert_store(X509_STORE *ca_cert_store);
+#endif
+
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+  void enable_server_certificate_verification(bool enabled);
+#endif
+
+  void set_logger(Logger logger);
+
+protected:
+  struct Socket {
+    socket_t sock = INVALID_SOCKET;
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+    SSL *ssl = nullptr;
+#endif
+
+    bool is_open() const { return sock != INVALID_SOCKET; }
+  };
+
+  Result send_(Request &&req);
+
+  virtual bool create_and_connect_socket(Socket &socket, Error &error);
+
+  // All of:
+  //   shutdown_ssl
+  //   shutdown_socket
+  //   close_socket
+  // should ONLY be called when socket_mutex_ is locked.
+  // Also, shutdown_ssl and close_socket should also NOT be called concurrently
+  // with a DIFFERENT thread sending requests using that socket.
+  virtual void shutdown_ssl(Socket &socket, bool shutdown_gracefully);
+  void shutdown_socket(Socket &socket);
+  void close_socket(Socket &socket);
+
+  bool process_request(Stream &strm, Request &req, Response &res,
+                       bool close_connection, Error &error);
+
+  bool write_content_with_provider(Stream &strm, const Request &req,
+                                   Error &error);
+
+  void copy_settings(const ClientImpl &rhs);
+
+  // Socket endoint information
+  const std::string host_;
+  const int port_;
+  const std::string host_and_port_;
+
+  // Current open socket
+  Socket socket_;
+  mutable std::mutex socket_mutex_;
+  std::recursive_mutex request_mutex_;
+
+  // These are all protected under socket_mutex
+  size_t socket_requests_in_flight_ = 0;
+  std::thread::id socket_requests_are_from_thread_ = std::thread::id();
+  bool socket_should_be_closed_when_request_is_done_ = false;
+
+  // Hostname-IP map
+  std::map<std::string, std::string> addr_map_;
+
+  // Default headers
+  Headers default_headers_;
+
+  // Settings
+  std::string client_cert_path_;
+  std::string client_key_path_;
+
+  time_t connection_timeout_sec_ = CPPHTTPLIB_CONNECTION_TIMEOUT_SECOND;
+  time_t connection_timeout_usec_ = CPPHTTPLIB_CONNECTION_TIMEOUT_USECOND;
+  time_t read_timeout_sec_ = CPPHTTPLIB_READ_TIMEOUT_SECOND;
+  time_t read_timeout_usec_ = CPPHTTPLIB_READ_TIMEOUT_USECOND;
+  time_t write_timeout_sec_ = CPPHTTPLIB_WRITE_TIMEOUT_SECOND;
+  time_t write_timeout_usec_ = CPPHTTPLIB_WRITE_TIMEOUT_USECOND;
+
+  std::string basic_auth_username_;
+  std::string basic_auth_password_;
+  std::string bearer_token_auth_token_;
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+  std::string digest_auth_username_;
+  std::string digest_auth_password_;
+#endif
+
+  bool keep_alive_ = false;
+  bool follow_location_ = false;
+
+  bool url_encode_ = true;
+
+  int address_family_ = AF_UNSPEC;
+  bool tcp_nodelay_ = CPPHTTPLIB_TCP_NODELAY;
+  SocketOptions socket_options_ = nullptr;
+
+  bool compress_ = false;
+  bool decompress_ = true;
+
+  std::string interface_;
+
+  std::string proxy_host_;
+  int proxy_port_ = -1;
+
+  std::string proxy_basic_auth_username_;
+  std::string proxy_basic_auth_password_;
+  std::string proxy_bearer_token_auth_token_;
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+  std::string proxy_digest_auth_username_;
+  std::string proxy_digest_auth_password_;
+#endif
+
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+  std::string ca_cert_file_path_;
+  std::string ca_cert_dir_path_;
+
+  X509_STORE *ca_cert_store_ = nullptr;
+#endif
+
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+  bool server_certificate_verification_ = true;
+#endif
+
+  Logger logger_;
+
+private:
+  socket_t create_client_socket(Error &error) const;
+  bool read_response_line(Stream &strm, const Request &req, Response &res);
+  bool write_request(Stream &strm, Request &req, bool close_connection,
+                     Error &error);
+  bool redirect(Request &req, Response &res, Error &error);
+  bool handle_request(Stream &strm, Request &req, Response &res,
+                      bool close_connection, Error &error);
+  std::unique_ptr<Response> send_with_content_provider(
+      Request &req, const char *body, size_t content_length,
+      ContentProvider content_provider,
+      ContentProviderWithoutLength content_provider_without_length,
+      const std::string &content_type, Error &error);
+  Result send_with_content_provider(
+      const std::string &method, const std::string &path,
+      const Headers &headers, const char *body, size_t content_length,
+      ContentProvider content_provider,
+      ContentProviderWithoutLength content_provider_without_length,
+      const std::string &content_type);
+
+  std::string adjust_host_string(const std::string &host) const;
+
+  virtual bool process_socket(const Socket &socket,
+                              std::function<bool(Stream &strm)> callback);
+  virtual bool is_ssl() const;
+};
+
+class Client {
+public:
+  // Universal interface
+  explicit Client(const std::string &scheme_host_port);
+
+  explicit Client(const std::string &scheme_host_port,
+                  const std::string &client_cert_path,
+                  const std::string &client_key_path);
+
+  // HTTP only interface
+  explicit Client(const std::string &host, int port);
+
+  explicit Client(const std::string &host, int port,
+                  const std::string &client_cert_path,
+                  const std::string &client_key_path);
+
+  Client(Client &&) = default;
+
+  ~Client();
+
+  bool is_valid() const;
+
+  Result Get(const std::string &path);
+  Result Get(const std::string &path, const Headers &headers);
+  Result Get(const std::string &path, Progress progress);
+  Result Get(const std::string &path, const Headers &headers,
+             Progress progress);
+  Result Get(const std::string &path, ContentReceiver content_receiver);
+  Result Get(const std::string &path, const Headers &headers,
+             ContentReceiver content_receiver);
+  Result Get(const std::string &path, ContentReceiver content_receiver,
+             Progress progress);
+  Result Get(const std::string &path, const Headers &headers,
+             ContentReceiver content_receiver, Progress progress);
+  Result Get(const std::string &path, ResponseHandler response_handler,
+             ContentReceiver content_receiver);
+  Result Get(const std::string &path, const Headers &headers,
+             ResponseHandler response_handler,
+             ContentReceiver content_receiver);
+  Result Get(const std::string &path, const Headers &headers,
+             ResponseHandler response_handler, ContentReceiver content_receiver,
+             Progress progress);
+  Result Get(const std::string &path, ResponseHandler response_handler,
+             ContentReceiver content_receiver, Progress progress);
+
+  Result Get(const std::string &path, const Params &params,
+             const Headers &headers, Progress progress = nullptr);
+  Result Get(const std::string &path, const Params &params,
+             const Headers &headers, ContentReceiver content_receiver,
+             Progress progress = nullptr);
+  Result Get(const std::string &path, const Params &params,
+             const Headers &headers, ResponseHandler response_handler,
+             ContentReceiver content_receiver, Progress progress = nullptr);
+
+  Result Head(const std::string &path);
+  Result Head(const std::string &path, const Headers &headers);
+
+  Result Post(const std::string &path);
+  Result Post(const std::string &path, const char *body, size_t content_length,
+              const std::string &content_type);
+  Result Post(const std::string &path, const Headers &headers, const char *body,
+              size_t content_length, const std::string &content_type);
+  Result Post(const std::string &path, const std::string &body,
+              const std::string &content_type);
+  Result Post(const std::string &path, const Headers &headers,
+              const std::string &body, const std::string &content_type);
+  Result Post(const std::string &path, size_t content_length,
+              ContentProvider content_provider,
+              const std::string &content_type);
+  Result Post(const std::string &path,
+              ContentProviderWithoutLength content_provider,
+              const std::string &content_type);
+  Result Post(const std::string &path, const Headers &headers,
+              size_t content_length, ContentProvider content_provider,
+              const std::string &content_type);
+  Result Post(const std::string &path, const Headers &headers,
+              ContentProviderWithoutLength content_provider,
+              const std::string &content_type);
+  Result Post(const std::string &path, const Params &params);
+  Result Post(const std::string &path, const Headers &headers,
+              const Params &params);
+  Result Post(const std::string &path, const MultipartFormDataItems &items);
+  Result Post(const std::string &path, const Headers &headers,
+              const MultipartFormDataItems &items);
+  Result Post(const std::string &path, const Headers &headers,
+              const MultipartFormDataItems &items, const std::string &boundary);
+  Result Put(const std::string &path);
+  Result Put(const std::string &path, const char *body, size_t content_length,
+             const std::string &content_type);
+  Result Put(const std::string &path, const Headers &headers, const char *body,
+             size_t content_length, const std::string &content_type);
+  Result Put(const std::string &path, const std::string &body,
+             const std::string &content_type);
+  Result Put(const std::string &path, const Headers &headers,
+             const std::string &body, const std::string &content_type);
+  Result Put(const std::string &path, size_t content_length,
+             ContentProvider content_provider, const std::string &content_type);
+  Result Put(const std::string &path,
+             ContentProviderWithoutLength content_provider,
+             const std::string &content_type);
+  Result Put(const std::string &path, const Headers &headers,
+             size_t content_length, ContentProvider content_provider,
+             const std::string &content_type);
+  Result Put(const std::string &path, const Headers &headers,
+             ContentProviderWithoutLength content_provider,
+             const std::string &content_type);
+  Result Put(const std::string &path, const Params &params);
+  Result Put(const std::string &path, const Headers &headers,
+             const Params &params);
+  Result Put(const std::string &path, const MultipartFormDataItems &items);
+  Result Put(const std::string &path, const Headers &headers,
+             const MultipartFormDataItems &items);
+  Result Put(const std::string &path, const Headers &headers,
+             const MultipartFormDataItems &items, const std::string &boundary);
+  Result Patch(const std::string &path);
+  Result Patch(const std::string &path, const char *body, size_t content_length,
+               const std::string &content_type);
+  Result Patch(const std::string &path, const Headers &headers,
+               const char *body, size_t content_length,
+               const std::string &content_type);
+  Result Patch(const std::string &path, const std::string &body,
+               const std::string &content_type);
+  Result Patch(const std::string &path, const Headers &headers,
+               const std::string &body, const std::string &content_type);
+  Result Patch(const std::string &path, size_t content_length,
+               ContentProvider content_provider,
+               const std::string &content_type);
+  Result Patch(const std::string &path,
+               ContentProviderWithoutLength content_provider,
+               const std::string &content_type);
+  Result Patch(const std::string &path, const Headers &headers,
+               size_t content_length, ContentProvider content_provider,
+               const std::string &content_type);
+  Result Patch(const std::string &path, const Headers &headers,
+               ContentProviderWithoutLength content_provider,
+               const std::string &content_type);
+
+  Result Delete(const std::string &path);
+  Result Delete(const std::string &path, const Headers &headers);
+  Result Delete(const std::string &path, const char *body,
+                size_t content_length, const std::string &content_type);
+  Result Delete(const std::string &path, const Headers &headers,
+                const char *body, size_t content_length,
+                const std::string &content_type);
+  Result Delete(const std::string &path, const std::string &body,
+                const std::string &content_type);
+  Result Delete(const std::string &path, const Headers &headers,
+                const std::string &body, const std::string &content_type);
+
+  Result Options(const std::string &path);
+  Result Options(const std::string &path, const Headers &headers);
+
+  bool send(Request &req, Response &res, Error &error);
+  Result send(const Request &req);
+
+  size_t is_socket_open() const;
+
+  socket_t socket() const;
+
+  void stop();
+
+  void set_hostname_addr_map(std::map<std::string, std::string> addr_map);
+
+  void set_default_headers(Headers headers);
+
+  void set_address_family(int family);
+  void set_tcp_nodelay(bool on);
+  void set_socket_options(SocketOptions socket_options);
+
+  void set_connection_timeout(time_t sec, time_t usec = 0);
+  template <class Rep, class Period>
+  void
+  set_connection_timeout(const std::chrono::duration<Rep, Period> &duration);
+
+  void set_read_timeout(time_t sec, time_t usec = 0);
+  template <class Rep, class Period>
+  void set_read_timeout(const std::chrono::duration<Rep, Period> &duration);
+
+  void set_write_timeout(time_t sec, time_t usec = 0);
+  template <class Rep, class Period>
+  void set_write_timeout(const std::chrono::duration<Rep, Period> &duration);
+
+  void set_basic_auth(const std::string &username, const std::string &password);
+  void set_bearer_token_auth(const std::string &token);
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+  void set_digest_auth(const std::string &username,
+                       const std::string &password);
+#endif
+
+  void set_keep_alive(bool on);
+  void set_follow_location(bool on);
+
+  void set_url_encode(bool on);
+
+  void set_compress(bool on);
+
+  void set_decompress(bool on);
+
+  void set_interface(const std::string &intf);
+
+  void set_proxy(const std::string &host, int port);
+  void set_proxy_basic_auth(const std::string &username,
+                            const std::string &password);
+  void set_proxy_bearer_token_auth(const std::string &token);
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+  void set_proxy_digest_auth(const std::string &username,
+                             const std::string &password);
+#endif
+
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+  void enable_server_certificate_verification(bool enabled);
+#endif
+
+  void set_logger(Logger logger);
+
+  // SSL
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+  void set_ca_cert_path(const std::string &ca_cert_file_path,
+                        const std::string &ca_cert_dir_path = std::string());
+
+  void set_ca_cert_store(X509_STORE *ca_cert_store);
+
+  long get_openssl_verify_result() const;
+
+  SSL_CTX *ssl_context() const;
+#endif
+
+private:
+  std::unique_ptr<ClientImpl> cli_;
+
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+  bool is_ssl_ = false;
+#endif
+};
+
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+class SSLServer : public Server {
+public:
+  SSLServer(const char *cert_path, const char *private_key_path,
+            const char *client_ca_cert_file_path = nullptr,
+            const char *client_ca_cert_dir_path = nullptr,
+            const char *private_key_password = nullptr);
+
+  SSLServer(X509 *cert, EVP_PKEY *private_key,
+            X509_STORE *client_ca_cert_store = nullptr);
+
+  SSLServer(
+      const std::function<bool(SSL_CTX &ssl_ctx)> &setup_ssl_ctx_callback);
+
+  ~SSLServer() override;
+
+  bool is_valid() const override;
+
+  SSL_CTX *ssl_context() const;
+
+private:
+  bool process_and_close_socket(socket_t sock) override;
+
+  SSL_CTX *ctx_;
+  std::mutex ctx_mutex_;
+};
+
+class SSLClient : public ClientImpl {
+public:
+  explicit SSLClient(const std::string &host);
+
+  explicit SSLClient(const std::string &host, int port);
+
+  explicit SSLClient(const std::string &host, int port,
+                     const std::string &client_cert_path,
+                     const std::string &client_key_path);
+
+  explicit SSLClient(const std::string &host, int port, X509 *client_cert,
+                     EVP_PKEY *client_key);
+
+  ~SSLClient() override;
+
+  bool is_valid() const override;
+
+  void set_ca_cert_store(X509_STORE *ca_cert_store);
+
+  long get_openssl_verify_result() const;
+
+  SSL_CTX *ssl_context() const;
+
+private:
+  bool create_and_connect_socket(Socket &socket, Error &error) override;
+  void shutdown_ssl(Socket &socket, bool shutdown_gracefully) override;
+  void shutdown_ssl_impl(Socket &socket, bool shutdown_socket);
+
+  bool process_socket(const Socket &socket,
+                      std::function<bool(Stream &strm)> callback) override;
+  bool is_ssl() const override;
+
+  bool connect_with_proxy(Socket &sock, Response &res, bool &success,
+                          Error &error);
+  bool initialize_ssl(Socket &socket, Error &error);
+
+  bool load_certs();
+
+  bool verify_host(X509 *server_cert) const;
+  bool verify_host_with_subject_alt_name(X509 *server_cert) const;
+  bool verify_host_with_common_name(X509 *server_cert) const;
+  bool check_host_name(const char *pattern, size_t pattern_len) const;
+
+  SSL_CTX *ctx_;
+  std::mutex ctx_mutex_;
+  std::once_flag initialize_cert_;
+
+  std::vector<std::string> host_components_;
+
+  long verify_result_ = 0;
+
+  friend class ClientImpl;
+};
+#endif
+
+/*
+ * Implementation of template methods.
+ */
+
+namespace detail {
+
+template <typename T, typename U>
+inline void duration_to_sec_and_usec(const T &duration, U callback) {
+  auto sec = std::chrono::duration_cast<std::chrono::seconds>(duration).count();
+  auto usec = std::chrono::duration_cast<std::chrono::microseconds>(
+                  duration - std::chrono::seconds(sec))
+                  .count();
+  callback(sec, usec);
+}
+
+template <typename T>
+inline T get_header_value(const Headers & /*headers*/,
+                          const std::string & /*key*/, size_t /*id*/ = 0,
+                          uint64_t /*def*/ = 0) {}
+
+template <>
+inline uint64_t get_header_value<uint64_t>(const Headers &headers,
+                                           const std::string &key, size_t id,
+                                           uint64_t def) {
+  auto rng = headers.equal_range(key);
+  auto it = rng.first;
+  std::advance(it, static_cast<ssize_t>(id));
+  if (it != rng.second) {
+    return std::strtoull(it->second.data(), nullptr, 10);
+  }
+  return def;
+}
+
+} // namespace detail
+
+template <typename T>
+inline T Request::get_header_value(const std::string &key, size_t id) const {
+  return detail::get_header_value<T>(headers, key, id, 0);
+}
+
+template <typename T>
+inline T Response::get_header_value(const std::string &key, size_t id) const {
+  return detail::get_header_value<T>(headers, key, id, 0);
+}
+
+template <typename... Args>
+inline ssize_t Stream::write_format(const char *fmt, const Args &...args) {
+  const auto bufsiz = 2048;
+  std::array<char, bufsiz> buf{};
+
+  auto sn = snprintf(buf.data(), buf.size() - 1, fmt, args...);
+  if (sn <= 0) { return sn; }
+
+  auto n = static_cast<size_t>(sn);
+
+  if (n >= buf.size() - 1) {
+    std::vector<char> glowable_buf(buf.size());
+
+    while (n >= glowable_buf.size() - 1) {
+      glowable_buf.resize(glowable_buf.size() * 2);
+      n = static_cast<size_t>(
+          snprintf(&glowable_buf[0], glowable_buf.size() - 1, fmt, args...));
+    }
+    return write(&glowable_buf[0], n);
+  } else {
+    return write(buf.data(), n);
+  }
+}
+
+inline void default_socket_options(socket_t sock) {
+  int yes = 1;
+#ifdef _WIN32
+  setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, reinterpret_cast<char *>(&yes),
+             sizeof(yes));
+  setsockopt(sock, SOL_SOCKET, SO_EXCLUSIVEADDRUSE,
+             reinterpret_cast<char *>(&yes), sizeof(yes));
+#else
+#ifdef SO_REUSEPORT
+  setsockopt(sock, SOL_SOCKET, SO_REUSEPORT, reinterpret_cast<void *>(&yes),
+             sizeof(yes));
+#else
+  setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, reinterpret_cast<void *>(&yes),
+             sizeof(yes));
+#endif
+#endif
+}
+
+template <class Rep, class Period>
+inline Server &
+Server::set_read_timeout(const std::chrono::duration<Rep, Period> &duration) {
+  detail::duration_to_sec_and_usec(
+      duration, [&](time_t sec, time_t usec) { set_read_timeout(sec, usec); });
+  return *this;
+}
+
+template <class Rep, class Period>
+inline Server &
+Server::set_write_timeout(const std::chrono::duration<Rep, Period> &duration) {
+  detail::duration_to_sec_and_usec(
+      duration, [&](time_t sec, time_t usec) { set_write_timeout(sec, usec); });
+  return *this;
+}
+
+template <class Rep, class Period>
+inline Server &
+Server::set_idle_interval(const std::chrono::duration<Rep, Period> &duration) {
+  detail::duration_to_sec_and_usec(
+      duration, [&](time_t sec, time_t usec) { set_idle_interval(sec, usec); });
+  return *this;
+}
+
+inline std::string to_string(const Error error) {
+  switch (error) {
+  case Error::Success: return "Success";
+  case Error::Connection: return "Connection";
+  case Error::BindIPAddress: return "BindIPAddress";
+  case Error::Read: return "Read";
+  case Error::Write: return "Write";
+  case Error::ExceedRedirectCount: return "ExceedRedirectCount";
+  case Error::Canceled: return "Canceled";
+  case Error::SSLConnection: return "SSLConnection";
+  case Error::SSLLoadingCerts: return "SSLLoadingCerts";
+  case Error::SSLServerVerification: return "SSLServerVerification";
+  case Error::UnsupportedMultipartBoundaryChars:
+    return "UnsupportedMultipartBoundaryChars";
+  case Error::Compression: return "Compression";
+  case Error::ConnectionTimeout: return "ConnectionTimeout";
+  case Error::Unknown: return "Unknown";
+  default: break;
+  }
+
+  return "Invalid";
+}
+
+inline std::ostream &operator<<(std::ostream &os, const Error &obj) {
+  os << to_string(obj);
+  os << " (" << static_cast<std::underlying_type<Error>::type>(obj) << ')';
+  return os;
+}
+
+template <typename T>
+inline T Result::get_request_header_value(const std::string &key,
+                                          size_t id) const {
+  return detail::get_header_value<T>(request_headers_, key, id, 0);
+}
+
+template <class Rep, class Period>
+inline void ClientImpl::set_connection_timeout(
+    const std::chrono::duration<Rep, Period> &duration) {
+  detail::duration_to_sec_and_usec(duration, [&](time_t sec, time_t usec) {
+    set_connection_timeout(sec, usec);
+  });
+}
+
+template <class Rep, class Period>
+inline void ClientImpl::set_read_timeout(
+    const std::chrono::duration<Rep, Period> &duration) {
+  detail::duration_to_sec_and_usec(
+      duration, [&](time_t sec, time_t usec) { set_read_timeout(sec, usec); });
+}
+
+template <class Rep, class Period>
+inline void ClientImpl::set_write_timeout(
+    const std::chrono::duration<Rep, Period> &duration) {
+  detail::duration_to_sec_and_usec(
+      duration, [&](time_t sec, time_t usec) { set_write_timeout(sec, usec); });
+}
+
+template <class Rep, class Period>
+inline void Client::set_connection_timeout(
+    const std::chrono::duration<Rep, Period> &duration) {
+  cli_->set_connection_timeout(duration);
+}
+
+template <class Rep, class Period>
+inline void
+Client::set_read_timeout(const std::chrono::duration<Rep, Period> &duration) {
+  cli_->set_read_timeout(duration);
+}
+
+template <class Rep, class Period>
+inline void
+Client::set_write_timeout(const std::chrono::duration<Rep, Period> &duration) {
+  cli_->set_write_timeout(duration);
+}
+
+/*
+ * Forward declarations and types that will be part of the .h file if split into
+ * .h + .cc.
+ */
+
+std::string hosted_at(const std::string &hostname);
+
+void hosted_at(const std::string &hostname, std::vector<std::string> &addrs);
+
+std::string append_query_params(const std::string &path, const Params &params);
+
+std::pair<std::string, std::string> make_range_header(Ranges ranges);
+
+std::pair<std::string, std::string>
+make_basic_authentication_header(const std::string &username,
+                                 const std::string &password,
+                                 bool is_proxy = false);
+
+namespace detail {
+
+std::string encode_query_param(const std::string &value);
+
+std::string decode_url(const std::string &s, bool convert_plus_to_space);
+
+void read_file(const std::string &path, std::string &out);
+
+std::string trim_copy(const std::string &s);
+
+void split(const char *b, const char *e, char d,
+           std::function<void(const char *, const char *)> fn);
+
+bool process_client_socket(socket_t sock, time_t read_timeout_sec,
+                           time_t read_timeout_usec, time_t write_timeout_sec,
+                           time_t write_timeout_usec,
+                           std::function<bool(Stream &)> callback);
+
+socket_t create_client_socket(
+    const std::string &host, const std::string &ip, int port,
+    int address_family, bool tcp_nodelay, SocketOptions socket_options,
+    time_t connection_timeout_sec, time_t connection_timeout_usec,
+    time_t read_timeout_sec, time_t read_timeout_usec, time_t write_timeout_sec,
+    time_t write_timeout_usec, const std::string &intf, Error &error);
+
+const char *get_header_value(const Headers &headers, const std::string &key,
+                             size_t id = 0, const char *def = nullptr);
+
+std::string params_to_query_str(const Params &params);
+
+void parse_query_text(const std::string &s, Params &params);
+
+bool parse_range_header(const std::string &s, Ranges &ranges);
+
+int close_socket(socket_t sock);
+
+ssize_t send_socket(socket_t sock, const void *ptr, size_t size, int flags);
+
+ssize_t read_socket(socket_t sock, void *ptr, size_t size, int flags);
+
+enum class EncodingType { None = 0, Gzip, Brotli };
+
+EncodingType encoding_type(const Request &req, const Response &res);
+
+class BufferStream : public Stream {
+public:
+  BufferStream() = default;
+  ~BufferStream() override = default;
+
+  bool is_readable() const override;
+  bool is_writable() const override;
+  ssize_t read(char *ptr, size_t size) override;
+  ssize_t write(const char *ptr, size_t size) override;
+  void get_remote_ip_and_port(std::string &ip, int &port) const override;
+  socket_t socket() const override;
+
+  const std::string &get_buffer() const;
+
+private:
+  std::string buffer;
+  size_t position = 0;
+};
+
+class compressor {
+public:
+  virtual ~compressor() = default;
+
+  typedef std::function<bool(const char *data, size_t data_len)> Callback;
+  virtual bool compress(const char *data, size_t data_length, bool last,
+                        Callback callback) = 0;
+};
+
+class decompressor {
+public:
+  virtual ~decompressor() = default;
+
+  virtual bool is_valid() const = 0;
+
+  typedef std::function<bool(const char *data, size_t data_len)> Callback;
+  virtual bool decompress(const char *data, size_t data_length,
+                          Callback callback) = 0;
+};
+
+class nocompressor : public compressor {
+public:
+  virtual ~nocompressor() = default;
+
+  bool compress(const char *data, size_t data_length, bool /*last*/,
+                Callback callback) override;
+};
+
+#ifdef CPPHTTPLIB_ZLIB_SUPPORT
+class gzip_compressor : public compressor {
+public:
+  gzip_compressor();
+  ~gzip_compressor();
+
+  bool compress(const char *data, size_t data_length, bool last,
+                Callback callback) override;
+
+private:
+  bool is_valid_ = false;
+  z_stream strm_;
+};
+
+class gzip_decompressor : public decompressor {
+public:
+  gzip_decompressor();
+  ~gzip_decompressor();
+
+  bool is_valid() const override;
+
+  bool decompress(const char *data, size_t data_length,
+                  Callback callback) override;
+
+private:
+  bool is_valid_ = false;
+  z_stream strm_;
+};
+#endif
+
+#ifdef CPPHTTPLIB_BROTLI_SUPPORT
+class brotli_compressor : public compressor {
+public:
+  brotli_compressor();
+  ~brotli_compressor();
+
+  bool compress(const char *data, size_t data_length, bool last,
+                Callback callback) override;
+
+private:
+  BrotliEncoderState *state_ = nullptr;
+};
+
+class brotli_decompressor : public decompressor {
+public:
+  brotli_decompressor();
+  ~brotli_decompressor();
+
+  bool is_valid() const override;
+
+  bool decompress(const char *data, size_t data_length,
+                  Callback callback) override;
+
+private:
+  BrotliDecoderResult decoder_r;
+  BrotliDecoderState *decoder_s = nullptr;
+};
+#endif
+
+// NOTE: until the read size reaches `fixed_buffer_size`, use `fixed_buffer`
+// to store data. The call can set memory on stack for performance.
+class stream_line_reader {
+public:
+  stream_line_reader(Stream &strm, char *fixed_buffer,
+                     size_t fixed_buffer_size);
+  const char *ptr() const;
+  size_t size() const;
+  bool end_with_crlf() const;
+  bool getline();
+
+private:
+  void append(char c);
+
+  Stream &strm_;
+  char *fixed_buffer_;
+  const size_t fixed_buffer_size_;
+  size_t fixed_buffer_used_size_ = 0;
+  std::string glowable_buffer_;
+};
+
+} // namespace detail
+
+
+} // namespace httplib
+
+#endif // CPPHTTPLIB_HTTPLIB_H

3rdparty/httplib/httplib.vcxproj

@@ -0,0 +1,160 @@
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+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <PreprocessorDefinitions>_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_DEPRECATE;_DEBUG;_LIB;_ITERATOR_DEBUG_LEVEL=0;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <Optimization>MaxSpeed</Optimization>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <PreprocessorDefinitions>_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_DEPRECATE;WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <Optimization>MaxSpeed</Optimization>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <PreprocessorDefinitions>_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_DEPRECATE;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+    </Link>
+  </ItemDefinitionGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>

3rdparty/httplib/httplib.vcxproj.filters

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <Extensions>cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="Header Files">
+      <Extensions>h;hh;hpp;hxx;hm;inl;inc;xsd</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="httplib.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="httplib.cc">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+</Project>

CMakeLists.txt

@@ -226,6 +226,10 @@ endif()
 message( STATUS "Detecting networking library (socket/nsl/ws2_32) - done" )
 endif()
 
+#
+# enable web server?
+#
+option( ENABLE_WEB_SERVER "Build web-server (default=ON)" ON )
 
 #
 # Test for big endian

Makefile.in

@@ -4,11 +4,12 @@ HAVE_MYSQL=@HAVE_MYSQL@
 OMAP=@OMAP@
 ifeq ($(HAVE_MYSQL),yes)
 	ALL_DEPENDS=server tools
-	SERVER_DEPENDS=common login char map import
+	SERVER_DEPENDS=common login char map web import
 	COMMON_DEPENDS=libconfig rapidyaml yaml-cpp
 	LOGIN_DEPENDS=libconfig common
 	CHAR_DEPENDS=libconfig common rapidyaml
 	MAP_DEPENDS=libconfig common rapidyaml
+	WEB_DEPENDS=libconfig common yaml-cpp httplib
 else
 	ALL_DEPENDS=needs_mysql
 	SERVER_DEPENDS=needs_mysql
@@ -16,6 +17,7 @@ else
 	LOGIN_DEPENDS=needs_mysql
 	CHAR_DEPENDS=needs_mysql
 	MAP_DEPENDS=needs_mysql
+	WEB_DEPENDS=needs_mysql
 endif
 
 
@@ -25,6 +27,7 @@ endif
 	login \
 	char \
 	map \
+	web \
 	tools \
 	import \
 	clean help \
@@ -49,6 +52,9 @@ char: $(CHAR_DEPENDS)
 map: $(MAP_DEPENDS)
 	@$(MAKE) -C src/map server
 
+web: $(WEB_DEPENDS)
+	@$(MAKE) -C src/web server
+
 libconfig:
 	@$(MAKE) -C 3rdparty/libconfig
 
@@ -61,6 +67,9 @@ rapidyaml:
 yaml-cpp:
 	@$(MAKE) -C 3rdparty/yaml-cpp
 
+httplib:
+	@$(MAKE) -C 3rdparty/httplib
+
 import:
 # 1) create conf/import folder
 # 2) add missing files
@@ -81,9 +90,11 @@ clean:
 	@$(MAKE) -C 3rdparty/libconfig $@
 	@$(MAKE) -C 3rdparty/rapidyaml $@
 	@$(MAKE) -C 3rdparty/yaml-cpp $@
+	@$(MAKE) -C 3rdparty/httplib $@
 	@$(MAKE) -C src/login $@
 	@$(MAKE) -C src/char $@
 	@$(MAKE) -C src/map $@
+	@$(MAKE) -C src/web $@
 	@$(MAKE) -C src/tool $@
 
 help:
@@ -93,9 +104,11 @@ help:
 	@echo "'libconfig'   - builds object files of libconfig"
 	@echo "'rapidyaml'   - builds object files of rapidyaml"
 	@echo "'yaml-cpp'    - builds object files of yaml-cpp"
+	@echo "'httplib'     - builds object files of httplib"
 	@echo "'login'       - builds login server"
 	@echo "'char'        - builds char server"
 	@echo "'map'         - builds map server"
+	@echo "'web'         - builds web server"
 	@echo "'tools'       - builds all the tools in src/tools"
 	@echo "'import'      - builds conf/import, conf/msg_conf/import and db/import folders from their template folders (x-tmpl)"
 	@echo "'all'         - builds all the above targets"

athena-start

@@ -61,7 +61,7 @@ watch_serv(){
 	#now checking status and looping
 	count=0;
 	while true; do
-		for i in ${L_SRV} ${C_SRV} ${M_SRV}
+		for i in ${L_SRV} ${C_SRV} ${M_SRV} ${W_SRV}
 		do
 			LOGFILE="$LOG_DIR/$i.launch.log"
 			LOGRUN="$LOG_DIR/$i.log"
@@ -89,7 +89,7 @@ watch_serv(){
 restart(){
 	$0 stop
 	if [ $1 ]; then sleep $1; fi
-	for i in ${L_SRV} ${C_SRV} ${M_SRV}
+	for i in ${L_SRV} ${C_SRV} ${M_SRV} ${W_SRV}
 	do
 		FIFO="$1_fifo"
 		while true; do
@@ -117,7 +117,7 @@ case $1 in
 		else
 		 echo "Logging is disabled"
 		fi
-		for i in ${L_SRV} ${C_SRV} ${M_SRV}
+		for i in ${L_SRV} ${C_SRV} ${M_SRV} ${W_SRV}
 		do
 			start_serv $i $ENLOG
 		done
@@ -128,7 +128,7 @@ case $1 in
 		if [ -z $2 ]; then Restart_count=10; else Restart_count=$2; fi
 		if [ -z $3 ]; then Restart_sleep=3; else Restart_sleep=$3; fi
 		echo "Going to watch rAthena for restart_count = $Restart_count, restart_sleep = $Restart_sleep"
-		for i in ${L_SRV} ${C_SRV} ${M_SRV}
+		for i in ${L_SRV} ${C_SRV} ${M_SRV} ${W_SRV}
 		do
 			start_serv $i 1
 		done
@@ -136,7 +136,7 @@ case $1 in
 		echo "Watching rAthena now."
 	;;	
 	'stop')
-		for i in ${M_SRV} ${C_SRV} ${L_SRV}
+		for i in ${W_SRV} ${M_SRV} ${C_SRV} ${L_SRV}
 		do
 			PIDFILE=.${i}.pid
 			if [ -e ./${PIDFILE} ]; then
@@ -158,20 +158,20 @@ case $1 in
 		 restart
 	;;
 	'status')
-		for i in ${L_SRV} ${C_SRV} ${M_SRV}
+		for i in ${L_SRV} ${C_SRV} ${M_SRV} ${W_SRV}
 		do
 			get_status ${i}
 			if [ ${PSRUN} ]; then echo "'${i}' is running p${PSRUN}"; else echo "'${i}' seems to be down"; fi
 		done
 	;;
 	'val_runonce')
-		for i in ${L_SRV} ${C_SRV} ${M_SRV}
+		for i in ${L_SRV} ${C_SRV} ${M_SRV} ${W_SRV}
 		do
 			valgrind --leak-check=full --show-leak-kinds=all ./$i --run-once > "log/$i.runonce.leak"
 		done
 	;;
 	'valchk')
-		for i in ${L_SRV} ${C_SRV} ${M_SRV}
+		for i in ${L_SRV} ${C_SRV} ${M_SRV} ${W_SRV}
 		do
 			valgrind --leak-check=full --show-leak-kinds=all ./$i > "log/$i.runonce.leak"
 		done

conf/battle/client.conf

@@ -118,12 +118,6 @@ client_reshuffle_dice: yes
 // NOTE: Enabling this option degrades performance.
 client_sort_storage: no
 
-// Do we allow to change guilde emblem during woe_time?
-emblem_woe_change: yes
-
-// How many transparent pixel can be found in emblem before detected as invalid? (Note 2)
-emblem_transparency_limit: 80
-
 // Update enemy position while in invisible state? (Note 1)
 // NOTE: Set to 'no' will make client won't update enemy position unless the players have "Intravision" effect.
 //       So that will help client handling WPE - Maya Purple Hack stuff.

conf/inter_athena.conf

@@ -15,6 +15,12 @@ party_share_level: 15
 // Amount of status points a new character will start with
 start_status_points: 48
 
+// Do we allow to change guild emblem during woe_time?
+emblem_woe_change: yes
+
+// How many transparent pixel can be found in emblem before detected as invalid? (Note 2)
+emblem_transparency_limit: 80
+
 // You can specify the codepage to use in your MySQL tables here.
 // (Note that this feature requires MySQL 4.1+)
 //default_codepage:
@@ -58,6 +64,13 @@ map_server_id: ragnarok
 map_server_pw: ragnarok
 map_server_db: ragnarok
 
+// MySQL Web Server
+web_server_ip: 127.0.0.1
+web_server_port: 3306
+web_server_id: ragnarok
+web_server_pw: ragnarok
+web_server_db: ragnarok
+
 // MySQL Log Database
 log_db_ip: 127.0.0.1
 log_db_port: 3306
@@ -152,6 +165,14 @@ market_table: market
 roulette_table: db_roulette
 guild_storage_log: guild_storage_log
 
+// Web Database Tables
+// NOTE: The web server reads the login (login) and char (guild) tables, so it needs
+//       the ability to connect to those databases.
+guild_emblems: guild_emblems
+user_configs: user_configs
+char_configs: char_configs
+merchant_configs: merchant_configs
+
 // Use SQL item_db, mob_db and mob_skill_db for the map server? (yes/no)
 use_sql_db: no
 

conf/login_athena.conf

@@ -167,6 +167,11 @@ client_hash_check: off
 // This is required for new clients that get data via an additional API over HTTP
 use_web_auth_token: yes
 
+// Delay (in milliseconds) disabling webtoken after character logs off
+// There's a race condition when the client logs off. The char-server could revoke the token before
+// the client can save the changed configs.
+disable_webtoken_delay: 10000
+
 // Client MD5 hashes
 // The client with the specified hash can be used to log in by players with
 // a group_id equal to or greater than the given value.

conf/msg_conf/web_msg.conf

@@ -0,0 +1,3 @@
+// rAthena msg_athena.conf
+// Message Configuration of web-server
+// -----------------------

conf/web_athena.conf

@@ -0,0 +1,56 @@
+// rAthena Web Server configuration file.
+
+// Note: "Comments" are all text on the right side of a double slash "//"
+// Whatever text is commented will not be parsed by the servers, and serves
+// only as information/reference.
+
+// The web server listens on the interface with this IP address.
+// NOTE: This allows you to run multiple servers on multiple interfaces
+// while using the same ports for each server.
+//bind_ip: 127.0.0.1
+ 
+// Web Server Port
+web_port: 8888
+
+//Time-stamp format which will be printed before all messages.
+//Can at most be 20 characters long.
+//Common formats:
+// %I:%M:%S %p (hour:minute:second 12 hour, AM/PM format)
+// %H:%M:%S (hour:minute:second, 24 hour format)
+// %d/%b/%Y (day/Month/year)
+//For full format information, consult the strftime() manual.
+//timestamp_format: [%d/%b %H:%M]
+
+//If redirected output contains escape sequences (color codes)
+stdout_with_ansisequence: no
+
+//Makes server log selected message types to a file in the /log/ folder
+//1: Log Warning Messages
+//2: Log Error and SQL Error messages.
+//4: Log Debug Messages
+//Example: "console_msg_log: 7" logs all 3 kinds
+//Messages logged by this overrides console_silent setting
+console_msg_log: 0
+
+// File path to store the console messages above
+console_log_filepath: ./log/web-msg_log.log
+
+//Makes server output more silent by omitting certain types of messages:
+//1: Hide Information messages
+//2: Hide Status messages
+//4: Hide Notice Messages
+//8: Hide Warning Messages
+//16: Hide Error and SQL Error messages.
+//32: Hide Debug Messages
+//Example: "console_silent: 7" Hides information, status and notice messages (1+2+4)
+console_silent: 0
+
+// Print requests and responses?
+// This is useful for debugging purposes, it will print the entire
+// request and response for each transaction.
+print_req_res: off
+
+// Allow GIF images to be uploaded as guild emblem?
+allow_gifs: yes
+
+import: conf/import/web_conf.txt

configure

@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.in Revision.
+# From configure.ac Revision.
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.69.
 #
@@ -642,6 +642,7 @@ ac_ct_CC
 CFLAGS
 CC
 SET_MAKE
+OWEB
 OMAP
 OCHR
 OLOG
@@ -674,6 +675,7 @@ infodir
 docdir
 oldincludedir
 includedir
+runstatedir
 localstatedir
 sharedstatedir
 sysconfdir
@@ -712,6 +714,7 @@ with_maxconn
 with_outputlogin
 with_outputchar
 with_outputmap
+with_outputweb
 with_mysql
 with_MYSQL_CFLAGS
 with_MYSQL_LIBS
@@ -768,6 +771,7 @@ datadir='${datarootdir}'
 sysconfdir='${prefix}/etc'
 sharedstatedir='${prefix}/com'
 localstatedir='${prefix}/var'
+runstatedir='${localstatedir}/run'
 includedir='${prefix}/include'
 oldincludedir='/usr/include'
 docdir='${datarootdir}/doc/${PACKAGE}'
@@ -1020,6 +1024,15 @@ do
   | -silent | --silent | --silen | --sile | --sil)
     silent=yes ;;
 
+  -runstatedir | --runstatedir | --runstatedi | --runstated \
+  | --runstate | --runstat | --runsta | --runst | --runs \
+  | --run | --ru | --r)
+    ac_prev=runstatedir ;;
+  -runstatedir=* | --runstatedir=* | --runstatedi=* | --runstated=* \
+  | --runstate=* | --runstat=* | --runsta=* | --runst=* | --runs=* \
+  | --run=* | --ru=* | --r=*)
+    runstatedir=$ac_optarg ;;
+
   -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
     ac_prev=sbindir ;;
   -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
@@ -1157,7 +1170,7 @@ fi
 for ac_var in	exec_prefix prefix bindir sbindir libexecdir datarootdir \
 		datadir sysconfdir sharedstatedir localstatedir includedir \
 		oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
-		libdir localedir mandir
+		libdir localedir mandir runstatedir
 do
   eval ac_val=\$$ac_var
   # Remove trailing slashes.
@@ -1310,6 +1323,7 @@ Fine tuning of the installation directories:
   --sysconfdir=DIR        read-only single-machine data [PREFIX/etc]
   --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
   --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
+  --runstatedir=DIR       modifiable per-process data [LOCALSTATEDIR/run]
   --libdir=DIR            object code libraries [EPREFIX/lib]
   --includedir=DIR        C header files [PREFIX/include]
   --oldincludedir=DIR     C header files for non-gcc [/usr/include]
@@ -1367,9 +1381,10 @@ Optional Packages:
   --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
   --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
   --with-maxconn[=ARG]    optionally set the maximum connections the core can
-                          handle. By default the system header value will be used.
-                          This will only be the compile time limit, make sure
-                          you set the correct limit with ulimit on your OS.
+                          handle. By default the system header value will be
+                          used. This will only be the compile time limit, make
+                          sure you set the correct limit with ulimit on your
+                          OS.
   --with-outputlogin[=ARG]
                           Specify the login-serv output name (defaults to
                           login-server)
@@ -1377,6 +1392,8 @@ Optional Packages:
                           char-server)
   --with-outputmap[=ARG]  Specify the map-serv output name (defaults to
                           map-server)
+  --with-outputweb[=ARG]  Specify the web-serv output name (defaults to
+                          web-server)
   --with-mysql[=ARG]      optionally specify the path to the mysql_config
                           executable
   --with-MYSQL_CFLAGS=ARG specify MYSQL_CFLAGS manually (instead of using
@@ -1718,21 +1735,21 @@ $as_echo "$ac_res" >&6; }
 
 } # ac_fn_cxx_check_header_compile
 
-# ac_fn_c_try_compile LINENO
-# --------------------------
-# Try to compile conftest.$ac_ext, and return whether this succeeded.
-ac_fn_c_try_compile ()
+# ac_fn_cxx_try_link LINENO
+# -------------------------
+# Try to link conftest.$ac_ext, and return whether this succeeded.
+ac_fn_cxx_try_link ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  rm -f conftest.$ac_objext
-  if { { ac_try="$ac_compile"
+  rm -f conftest.$ac_objext conftest$ac_exeext
+  if { { ac_try="$ac_link"
 case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
 $as_echo "$ac_try_echo"; } >&5
-  (eval "$ac_compile") 2>conftest.err
+  (eval "$ac_link") 2>conftest.err
   ac_status=$?
   if test -s conftest.err; then
     grep -v '^ *+' conftest.err >conftest.er1
@@ -1741,9 +1758,12 @@ $as_echo "$ac_try_echo"; } >&5
   fi
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; } && {
-	 test -z "$ac_c_werror_flag" ||
+	 test -z "$ac_cxx_werror_flag" ||
 	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then :
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 test -x conftest$ac_exeext
+       }; then :
   ac_retval=0
 else
   $as_echo "$as_me: failed program was:" >&5
@@ -1751,26 +1771,31 @@ sed 's/^/| /' conftest.$ac_ext >&5
 
 	ac_retval=1
 fi
+  # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
+  # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
+  # interfere with the next link command; also delete a directory that is
+  # left behind by Apple's compiler.  We do this before executing the actions.
+  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
   as_fn_set_status $ac_retval
 
-} # ac_fn_c_try_compile
+} # ac_fn_cxx_try_link
 
-# ac_fn_cxx_try_link LINENO
-# -------------------------
-# Try to link conftest.$ac_ext, and return whether this succeeded.
-ac_fn_cxx_try_link ()
+# ac_fn_c_try_compile LINENO
+# --------------------------
+# Try to compile conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_compile ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  rm -f conftest.$ac_objext conftest$ac_exeext
-  if { { ac_try="$ac_link"
+  rm -f conftest.$ac_objext
+  if { { ac_try="$ac_compile"
 case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
 $as_echo "$ac_try_echo"; } >&5
-  (eval "$ac_link") 2>conftest.err
+  (eval "$ac_compile") 2>conftest.err
   ac_status=$?
   if test -s conftest.err; then
     grep -v '^ *+' conftest.err >conftest.er1
@@ -1779,12 +1804,9 @@ $as_echo "$ac_try_echo"; } >&5
   fi
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; } && {
-	 test -z "$ac_cxx_werror_flag" ||
+	 test -z "$ac_c_werror_flag" ||
 	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 test -x conftest$ac_exeext
-       }; then :
+       } && test -s conftest.$ac_objext; then :
   ac_retval=0
 else
   $as_echo "$as_me: failed program was:" >&5
@@ -1792,15 +1814,10 @@ sed 's/^/| /' conftest.$ac_ext >&5
 
 	ac_retval=1
 fi
-  # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
-  # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
-  # interfere with the next link command; also delete a directory that is
-  # left behind by Apple's compiler.  We do this before executing the actions.
-  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
   as_fn_set_status $ac_retval
 
-} # ac_fn_cxx_try_link
+} # ac_fn_c_try_compile
 
 # ac_fn_cxx_check_func LINENO FUNC VAR
 # ------------------------------------
@@ -2740,12 +2757,14 @@ ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
 ac_config_files="$ac_config_files Makefile src/common/Makefile"
 
-ac_config_files="$ac_config_files 3rdparty/libconfig/Makefile 3rdparty/yaml-cpp/Makefile 3rdparty/rapidyaml/Makefile"
+ac_config_files="$ac_config_files 3rdparty/libconfig/Makefile 3rdparty/yaml-cpp/Makefile 3rdparty/rapidyaml/Makefile 3rdparty/httplib/Makefile"
 
 ac_config_files="$ac_config_files src/char/Makefile src/login/Makefile"
 
 ac_config_files="$ac_config_files src/map/Makefile src/tool/Makefile"
 
+ac_config_files="$ac_config_files src/web/Makefile"
+
 
 ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -3284,11 +3303,10 @@ rm -f core conftest.err conftest.$ac_objext \
 $as_echo "$have_linux_epoll" >&6; }
 fi
 if test x$enable_epoll,$have_linux_epoll = xyes,no; then
-    as_fn_error $? "epoll support explicitly enabled but not available" "$LINENO" 5
+	as_fn_error $? "epoll support explicitly enabled but not available" "$LINENO" 5
 fi
 
 
-
 #
 # debug
 #
@@ -3464,18 +3482,24 @@ fi
 
 
 #
-# Optionally set the max number of network conenctions
-# the core will be support
+# Optionally set the maximum number of network connections
+# the core will be able to handle
 #
 
 # Check whether --with-maxconn was given.
 if test "${with_maxconn+set}" = set; then :
   withval=$with_maxconn;
-	if ! test "$withval" -ge 0 -o "$withval" -lt 0 2>&- ; then
-		as_fn_error $? "Invalid argument --with-maxconn=$withval ... stopping" "$LINENO" 5
-	else
-		CPPFLAGS="$CPPFLAGS -DMAXCONN=$withval"
-	fi
+		if ! test "$withval" -ge 0 -o "$withval" -lt 0 2>&- ; then
+			as_fn_error $? "Invalid argument --with-maxconn=$withval ... stopping" "$LINENO" 5
+		else
+			CPPFLAGS="$CPPFLAGS -DMAXCONN=$withval"
+		fi
+
+else
+
+		CPPFLAGS="$CPPFLAGS"
+
+
 fi
 
 
@@ -3520,6 +3544,18 @@ OMAP=$output_map
 
 
 
+# Check whether --with-outputweb was given.
+if test "${with_outputweb+set}" = set; then :
+  withval=$with_outputweb; output_web="$withval"
+else
+  output_web="web-server"
+
+fi
+
+OWEB=$output_web
+
+
+
 #
 # Optionally specify the path to mysql_config
 #
@@ -7027,7 +7063,6 @@ fi
 
 
 
-
 #
 # Host specific stuff
 #
@@ -7092,8 +7127,8 @@ $as_echo "$as_me: CFLAGS_AR= $CFLAGS_AR" >&6;}
 $as_echo "$as_me: LDFLAGS= $LDFLAGS" >&6;}
 #AC_MSG_NOTICE([PROD_WARN= $PROD_WARN])
 #AC_MSG_NOTICE([EXTRA_WARN= $EXTRA_WARN])
-{ $as_echo "$as_me:${as_lineno-$LINENO}: output name =  $output_login, $output_char, $output_map" >&5
-$as_echo "$as_me: output name =  $output_login, $output_char, $output_map" >&6;}
+{ $as_echo "$as_me:${as_lineno-$LINENO}: output name =  $output_login, $output_char, $output_map, $output_web" >&5
+$as_echo "$as_me: output name =  $output_login, $output_char, $output_map, $output_web" >&6;}
 
 ###############################################################################
 cat >confcache <<\_ACEOF
@@ -7807,10 +7842,12 @@ do
     "3rdparty/libconfig/Makefile") CONFIG_FILES="$CONFIG_FILES 3rdparty/libconfig/Makefile" ;;
     "3rdparty/yaml-cpp/Makefile") CONFIG_FILES="$CONFIG_FILES 3rdparty/yaml-cpp/Makefile" ;;
     "3rdparty/rapidyaml/Makefile") CONFIG_FILES="$CONFIG_FILES 3rdparty/rapidyaml/Makefile" ;;
+    "3rdparty/httplib/Makefile") CONFIG_FILES="$CONFIG_FILES 3rdparty/httplib/Makefile" ;;
     "src/char/Makefile") CONFIG_FILES="$CONFIG_FILES src/char/Makefile" ;;
     "src/login/Makefile") CONFIG_FILES="$CONFIG_FILES src/login/Makefile" ;;
     "src/map/Makefile") CONFIG_FILES="$CONFIG_FILES src/map/Makefile" ;;
     "src/tool/Makefile") CONFIG_FILES="$CONFIG_FILES src/tool/Makefile" ;;
+    "src/web/Makefile") CONFIG_FILES="$CONFIG_FILES src/web/Makefile" ;;
 
   *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
   esac

configure.in → configure.ac

@@ -8,9 +8,10 @@ AC_LANG([C++])
 AC_LANG_COMPILER_REQUIRE
 AC_CONFIG_SRCDIR([src/common/cbasetypes.hpp])
 AC_CONFIG_FILES([Makefile src/common/Makefile])
-AC_CONFIG_FILES([3rdparty/libconfig/Makefile 3rdparty/yaml-cpp/Makefile 3rdparty/rapidyaml/Makefile])
+AC_CONFIG_FILES([3rdparty/libconfig/Makefile 3rdparty/yaml-cpp/Makefile 3rdparty/rapidyaml/Makefile 3rdparty/httplib/Makefile])
 AC_CONFIG_FILES([src/char/Makefile src/login/Makefile])
 AC_CONFIG_FILES([src/map/Makefile src/tool/Makefile])
+AC_CONFIG_FILES([src/web/Makefile])
 
 AC_GNU_SOURCE
 
@@ -46,7 +47,7 @@ AC_ARG_ENABLE(
 	[packetver],
 	AC_HELP_STRING(
 		[--enable-packetver=ARG],
-		[Sets the PACKETVER define. (see src/common/mmo.h)]
+		[Sets the PACKETVER define. (see src/common/mmo.hpp)]
 	),
 	[enable_packetver="$enableval"],
 	[enable_packetver=""]
@@ -302,7 +303,8 @@ AC_ARG_WITH(
 	[maxconn],
 	AC_HELP_STRING(
 		[--with-maxconn@<:@=ARG@:>@],
-		[optionally set the maximum connections the core can handle. By default the system header value is used.]
+		[optionally set the maximum connections the core can handle. By default the system header value will be used.
+		 This will only be the compile time limit, make sure you set the correct limit with ulimit on your OS.]
 	),
 	[
 		if ! test "$withval" -ge 0 -o "$withval" -lt 0 2>&- ; then
@@ -353,6 +355,17 @@ AC_ARG_WITH(
 )
 AC_SUBST([OMAP],$output_map)
 
+AC_ARG_WITH(
+	[outputweb],
+	AC_HELP_STRING(
+		[--with-outputweb@<:@=ARG@:>@],
+		[Specify the web-serv output name (defaults to web-server)]
+	),
+	[output_web="$withval"],
+	[output_web="web-server"]
+)
+AC_SUBST([OWEB],$output_web)
+
 
 #
 # Optionally specify the path to mysql_config
@@ -635,7 +648,7 @@ if test "$enable_lto" != "no" ; then
 fi
 
 
-AC_DEFUN(AC_CHECK_COMPILER_WFLAG,
+AC_DEFUN([AC_CHECK_COMPILER_WFLAG],
 	[
 		AC_MSG_CHECKING([whether $CC supports -W$1])
 		OLD_CFLAGS="$CFLAGS"
@@ -670,7 +683,7 @@ AC_DEFUN(AC_CHECK_COMPILER_WFLAG,
 	]
 )
 
-AC_DEFUN(AC_CHECK_COMPILER_WNOFLAG,
+AC_DEFUN([AC_CHECK_COMPILER_WNOFLAG],
 	[
 		AC_MSG_CHECKING([whether $CC supports -Wno-$1])
 		OLD_CFLAGS="$CFLAGS"
@@ -1301,7 +1314,6 @@ AC_SUBST([PCRE_VERSION])
 AC_SUBST([PCRE_LIBS])
 AC_SUBST([PCRE_CFLAGS])
 
-
 #
 # Host specific stuff
 #
@@ -1356,7 +1368,7 @@ AC_MSG_NOTICE([CFLAGS_AR= $CFLAGS_AR])
 AC_MSG_NOTICE([LDFLAGS= $LDFLAGS])
 #AC_MSG_NOTICE([PROD_WARN= $PROD_WARN])
 #AC_MSG_NOTICE([EXTRA_WARN= $EXTRA_WARN])
-AC_MSG_NOTICE([output name =  $output_login, $output_char, $output_map])
+AC_MSG_NOTICE([output name =  $output_login, $output_char, $output_map, $output_web])
 
 ###############################################################################
 AC_OUTPUT

function.sh

@@ -1,12 +1,13 @@
 L_SRV=login-server
 C_SRV=char-server
 M_SRV=map-server
+W_SRV=web-server
 INST_PATH=/opt
 PKG=rathena
 PKG_PATH=$INST_PATH/$PKG
 
 check_files() {
-    for i in ${L_SRV} ${C_SRV} ${M_SRV}
+    for i in ${L_SRV} ${C_SRV} ${M_SRV} ${W_SRV}
     do
         if [ ! -f ./$i ]; then
             echo "$i does not exist... exiting..."

rAthena.sln

@@ -84,6 +84,14 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "yaml2sql", "src\tool\yaml2s
 		{352B45B3-FE88-4431-9D89-48CF811446DB} = {352B45B3-FE88-4431-9D89-48CF811446DB}
 	EndProjectSection
 EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "web-server", "src\web\web-server.vcxproj", "{5809F27D-65B5-46A3-A340-C8685A8C09F4}"
+	ProjectSection(ProjectDependencies) = postProject
+		{F8FD7B1E-8E1C-4CC3-9CD1-2E28F77B6559} = {F8FD7B1E-8E1C-4CC3-9CD1-2E28F77B6559}
+		{7A1A25BC-2CF7-44B2-8CAF-B4273B510FC6} = {7A1A25BC-2CF7-44B2-8CAF-B4273B510FC6}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "httplib", "3rdparty\httplib\httplib.vcxproj", "{7A1A25BC-2CF7-44B2-8CAF-B4273B510FC6}"
+EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "yamlupgrade", "src\tool\yamlupgrade.vcxproj", "{9115C6D1-520A-4540-B4FE-95F3C923FE2C}"
 	ProjectSection(ProjectDependencies) = postProject
 		{61D6A599-6BED-4154-A9FC-40553BD972E0} = {61D6A599-6BED-4154-A9FC-40553BD972E0}
@@ -181,6 +189,22 @@ Global
 		{CDBBB260-B245-44EC-80FB-3F9421885E40}.Release|Win32.Build.0 = Release|Win32
 		{CDBBB260-B245-44EC-80FB-3F9421885E40}.Release|x64.ActiveCfg = Release|x64
 		{CDBBB260-B245-44EC-80FB-3F9421885E40}.Release|x64.Build.0 = Release|x64
+		{5809F27D-65B5-46A3-A340-C8685A8C09F4}.Debug|Win32.ActiveCfg = Debug|Win32
+		{5809F27D-65B5-46A3-A340-C8685A8C09F4}.Debug|Win32.Build.0 = Debug|Win32
+		{5809F27D-65B5-46A3-A340-C8685A8C09F4}.Debug|x64.ActiveCfg = Debug|x64
+		{5809F27D-65B5-46A3-A340-C8685A8C09F4}.Debug|x64.Build.0 = Debug|x64
+		{5809F27D-65B5-46A3-A340-C8685A8C09F4}.Release|Win32.ActiveCfg = Release|Win32
+		{5809F27D-65B5-46A3-A340-C8685A8C09F4}.Release|Win32.Build.0 = Release|Win32
+		{5809F27D-65B5-46A3-A340-C8685A8C09F4}.Release|x64.ActiveCfg = Release|x64
+		{5809F27D-65B5-46A3-A340-C8685A8C09F4}.Release|x64.Build.0 = Release|x64
+		{7A1A25BC-2CF7-44B2-8CAF-B4273B510FC6}.Debug|Win32.ActiveCfg = Debug|Win32
+		{7A1A25BC-2CF7-44B2-8CAF-B4273B510FC6}.Debug|Win32.Build.0 = Debug|Win32
+		{7A1A25BC-2CF7-44B2-8CAF-B4273B510FC6}.Debug|x64.ActiveCfg = Debug|x64
+		{7A1A25BC-2CF7-44B2-8CAF-B4273B510FC6}.Debug|x64.Build.0 = Debug|x64
+		{7A1A25BC-2CF7-44B2-8CAF-B4273B510FC6}.Release|Win32.ActiveCfg = Release|Win32
+		{7A1A25BC-2CF7-44B2-8CAF-B4273B510FC6}.Release|Win32.Build.0 = Release|Win32
+		{7A1A25BC-2CF7-44B2-8CAF-B4273B510FC6}.Release|x64.ActiveCfg = Release|x64
+		{7A1A25BC-2CF7-44B2-8CAF-B4273B510FC6}.Release|x64.Build.0 = Release|x64
 		{9115C6D1-520A-4540-B4FE-95F3C923FE2C}.Debug|Win32.ActiveCfg = Debug|Win32
 		{9115C6D1-520A-4540-B4FE-95F3C923FE2C}.Debug|Win32.Build.0 = Debug|Win32
 		{9115C6D1-520A-4540-B4FE-95F3C923FE2C}.Debug|x64.ActiveCfg = Debug|x64
@@ -213,6 +237,8 @@ Global
 		{61D6A599-6BED-4154-A9FC-40553BD972E0} = {6ABA1767-6242-4CA0-BA22-A30972DC8918}
 		{5A9059F2-4933-49A2-BEE6-CC67F66FA070} = {9F328FE9-129D-4C0C-820B-BE4AA5996652}
 		{CDBBB260-B245-44EC-80FB-3F9421885E40} = {9F328FE9-129D-4C0C-820B-BE4AA5996652}
+		{5809F27D-65B5-46A3-A340-C8685A8C09F4} = {6D9F5D00-2988-4812-844D-D155C4F588DC}
+		{7A1A25BC-2CF7-44B2-8CAF-B4273B510FC6} = {6ABA1767-6242-4CA0-BA22-A30972DC8918}
 		{9115C6D1-520A-4540-B4FE-95F3C923FE2C} = {9F328FE9-129D-4C0C-820B-BE4AA5996652}
 		{492E2981-34F4-3A6A-BFD9-46096C641203} = {6ABA1767-6242-4CA0-BA22-A30972DC8918}
 	EndGlobalSection

sql-files/README.md

@@ -10,6 +10,7 @@ For a new install, the following needs to be imported into the 'ragnarok' schema
 Note: The schema name is defined in `conf/inter_athena.conf::map_server_db`.
 
 * main.sql - Contains tables for normal server usage.
+* web.sql - Contains tables for the web service
 * roulette_default_data.sql - Contains data for the client's roulette game.
 
 For a new install, the following needs to be imported into the 'log' schema:
@@ -72,3 +73,7 @@ To run these queries the user requires the [FILE](https://dev.mysql.com/doc/refm
 * item_db_to_txt.sql - Dumps the __pre-renewal__ item data table to TXT format.
 * item_db2_re_to_txt.sql - Dumps the __renewal__ item data table (import) to TXT format.
 * item_db2_to_txt.sql - Dumps the __pre-renewal__ item data table (import) to TXT format.
+
+### Notes
+---
+The web-server must be able to read the `login` and `guild` tables from the `login-server` and `char-server`, respectively.

sql-files/web.sql

@@ -0,0 +1,50 @@
+
+--
+-- Table structure for table `guild_emblems`
+--
+
+CREATE TABLE IF NOT EXISTS `guild_emblems` (
+  `world_name` varchar(32) NOT NULL,
+  `guild_id` int(11) unsigned NOT NULL,
+  `file_type` varchar(255) NOT NULL,
+  `file_data` blob,
+  `version` int(11) unsigned NOT NULL default '0',
+  PRIMARY KEY (`world_name`, `guild_id`)
+) ENGINE=MyISAM;
+
+--
+-- Table structure for table `user_configs`
+--
+
+CREATE TABLE IF NOT EXISTS `user_configs` (
+  `world_name` varchar(32) NOT NULL,
+  `account_id` int(11) unsigned NOT NULL,
+  `data` longtext NOT NULL,
+  PRIMARY KEY (`world_name`, `account_id`)
+) ENGINE=MyISAM;
+
+
+--
+-- Table structure for table `char_configs`
+--
+
+CREATE TABLE IF NOT EXISTS `char_configs` (
+  `world_name` varchar(32) NOT NULL,
+  `account_id` int(11) unsigned NOT NULL,
+  `char_id` int(11) unsigned NOT NULL,
+  `data` longtext NOT NULL,
+  PRIMARY KEY (`world_name`, `account_id`, `char_id`)
+) ENGINE=MyISAM;
+
+--
+-- Table structure for table `merchant_configs`
+--
+
+CREATE TABLE IF NOT EXISTS `merchant_configs` (
+  `world_name` varchar(32) NOT NULL,
+  `account_id` int(11) unsigned NOT NULL,
+  `char_id` INT(11) UNSIGNED NOT NULL,
+  `store_type` tinyint(3) UNSIGNED NOT NULL DEFAULT 0,
+  `data` longtext NOT NULL,
+  PRIMARY KEY (`world_name`, `account_id`, `char_id`)
+) ENGINE=MyISAM;

src/CMakeLists.txt

@@ -16,5 +16,6 @@ endif()
 add_subdirectory( login )
 add_subdirectory( char )
 add_subdirectory( map )
+add_subdirectory( web )
 add_subdirectory( tool )
 

src/common/core.cpp

@@ -379,7 +379,11 @@ int main (int argc, char **argv)
 	// Main runtime cycle
 	while (runflag != CORE_ST_STOP) { 
 		t_tick next = do_timer(gettick_nocache());
-		do_sockets(next);
+
+		if (SERVER_TYPE != ATHENA_SERVER_WEB)
+			do_sockets(next);
+		else
+			do_wait(next);
 	}
 
 	do_final();

src/common/core.hpp

@@ -30,6 +30,7 @@ enum {
 	ATHENA_SERVER_CHAR = 2,	// char server
 	ATHENA_SERVER_INTER	= 4,	// inter server
 	ATHENA_SERVER_MAP = 8,	// map server
+	ATHENA_SERVER_WEB = 16, // web server
 };
 
 extern char SERVER_TYPE;

src/common/socket.cpp

@@ -40,6 +40,9 @@
 	#endif
 #endif
 
+#include <chrono>
+#include <thread>
+
 #include "cbasetypes.hpp"
 #include "malloc.hpp"
 #include "mmo.hpp"
@@ -887,6 +890,14 @@ int WFIFOSET(int fd, size_t len)
 	return 0;
 }
 
+
+// replacement for do_sockets, where it does nothing
+int do_wait(t_tick next)
+{
+	std::this_thread::sleep_for(std::chrono::milliseconds(next));
+	return 0;
+}
+
 int do_sockets(t_tick next)
 {
 #ifndef SOCKET_EPOLL

src/common/socket.hpp

@@ -133,6 +133,7 @@ int WFIFOSET(int fd, size_t len);
 int RFIFOSKIP(int fd, size_t len);
 
 int do_sockets(t_tick next);
+int do_wait(t_tick next);
 void do_close(int fd);
 void socket_init(void);
 void socket_final(void);

src/common/sql.cpp

@@ -433,6 +433,12 @@ void Sql_FreeResult(Sql* self)
 	}
 }
 
+/// Closes the handle
+void Sql_Close(Sql* self) {
+	if (self) {
+		mysql_close(&self->handle);
+	}
+}
 
 
 /// Shows debug information (last query).
@@ -456,6 +462,7 @@ void Sql_Free(Sql* self)
 		Sql_FreeResult(self);
 		StringBuf_Destroy(&self->buf);
 		if( self->keepalive != INVALID_TIMER ) delete_timer(self->keepalive, Sql_P_KeepaliveTimer);
+		Sql_Close(self);
 		aFree(self);
 	}
 }

src/config/packets.hpp

@@ -88,4 +88,7 @@
 /// Check if the specified packetvresion supports the cashshop sale system
 #define PACKETVER_SUPPORTS_SALES PACKETVER >= 20131223
 
+/// Use web service?
+#define WEB_SERVER_ENABLE PACKETVER > 20200300
+
 #endif /* CONFIG_PACKETS_HPP */

src/login/account.cpp

@@ -54,7 +54,7 @@ static bool account_db_sql_remove(AccountDB* self, const uint32 account_id);
 static bool account_db_sql_enable_webtoken( AccountDB* self, const uint32 account_id );
 static bool account_db_sql_disable_webtoken( AccountDB* self, const uint32 account_id );
 static bool account_db_sql_remove_webtokens( AccountDB* self );
-static bool account_db_sql_save(AccountDB* self, const struct mmo_account* acc);
+static bool account_db_sql_save(AccountDB* self, const struct mmo_account* acc, bool refresh_token);
 static bool account_db_sql_load_num(AccountDB* self, struct mmo_account* acc, const uint32 account_id);
 static bool account_db_sql_load_str(AccountDB* self, struct mmo_account* acc, const char* userid);
 static AccountDBIterator* account_db_sql_iterator(AccountDB* self);
@@ -62,7 +62,7 @@ static void account_db_sql_iter_destroy(AccountDBIterator* self);
 static bool account_db_sql_iter_next(AccountDBIterator* self, struct mmo_account* acc);
 
 static bool mmo_auth_fromsql(AccountDB_SQL* db, struct mmo_account* acc, uint32 account_id);
-static bool mmo_auth_tosql(AccountDB_SQL* db, const struct mmo_account* acc, bool is_new);
+static bool mmo_auth_tosql(AccountDB_SQL* db, const struct mmo_account* acc, bool is_new, bool refresh_token);
 
 /// public constructor
 AccountDB* account_db_sql(void) {
@@ -334,7 +334,7 @@ static bool account_db_sql_create(AccountDB* self, struct mmo_account* acc) {
 
 	// insert the data into the database
 	acc->account_id = account_id;
-	return mmo_auth_tosql(db, acc, true);
+	return mmo_auth_tosql(db, acc, true, false);
 }
 
 /**
@@ -367,9 +367,9 @@ static bool account_db_sql_remove(AccountDB* self, const uint32 account_id) {
  * @param acc: pointer of mmo_account to save
  * @return true if successful, false if something has failed
  */
-static bool account_db_sql_save(AccountDB* self, const struct mmo_account* acc) {
+static bool account_db_sql_save(AccountDB* self, const struct mmo_account* acc, bool refresh_token) {
 	AccountDB_SQL* db = (AccountDB_SQL*)self;
-	return mmo_auth_tosql(db, acc, false);
+	return mmo_auth_tosql(db, acc, false, refresh_token);
 }
 
 /**
@@ -559,7 +559,7 @@ static bool mmo_auth_fromsql(AccountDB_SQL* db, struct mmo_account* acc, uint32
  * @param is_new: if it's a new entry or should we update
  * @return true if successful, false if something has failed
  */
-static bool mmo_auth_tosql(AccountDB_SQL* db, const struct mmo_account* acc, bool is_new) {
+static bool mmo_auth_tosql(AccountDB_SQL* db, const struct mmo_account* acc, bool is_new, bool refresh_token) {
 	Sql* sql_handle = db->accounts;
 	SqlStmt* stmt = SqlStmt_Malloc(sql_handle);
 	bool result = false;
@@ -644,7 +644,7 @@ static bool mmo_auth_tosql(AccountDB_SQL* db, const struct mmo_account* acc, boo
 		}
 	}
 
-	if( acc->sex != 'S' && login_config.use_web_auth_token ){
+	if( acc->sex != 'S' && login_config.use_web_auth_token && refresh_token ){
 		static bool initialized = false;
 		static const char* query;
 
@@ -919,13 +919,37 @@ bool account_db_sql_enable_webtoken( AccountDB* self, const uint32 account_id ){
 	return true;
 }
 
+/**
+ * Timered function to disable webtoken for user
+ * If the user is online, then they must have logged since we started the timer.
+ * In that case, do nothing. The new authtoken must be valid.
+ * @param tid: timer id
+ * @param tick: tick of execution
+ * @param id: user account id
+ * @param data: AccountDB // because we don't use singleton???
+ * @return :0
+ */
+TIMER_FUNC(account_disable_webtoken_timer){
+	const struct online_login_data* p = login_get_online_user(id);
+	AccountDB_SQL* db = reinterpret_cast<AccountDB_SQL*>(data);
+
+	if (p == nullptr) {
+		ShowInfo("Web Auth Token for account %d was disabled\n", id);
+		if( SQL_ERROR == Sql_Query( db->accounts, "UPDATE `%s` SET `web_auth_token_enabled` = '0' WHERE `account_id` = '%u'", db->account_db, id ) ){
+			Sql_ShowDebug( db->accounts );
+			return 0;
+		}
+	}
+
+	return 0;
+}
+
+
+
 bool account_db_sql_disable_webtoken( AccountDB* self, const uint32 account_id ){
 	AccountDB_SQL* db = (AccountDB_SQL*)self;
 
-	if( SQL_ERROR == Sql_Query( db->accounts, "UPDATE `%s` SET `web_auth_token_enabled` = '0' WHERE `account_id` = '%u'", db->account_db, account_id ) ){
-		Sql_ShowDebug( db->accounts );
-		return false;
-	}
+	add_timer(gettick() + login_config.disable_webtoken_delay, account_disable_webtoken_timer, account_id, reinterpret_cast<intptr_t>(db));
 
 	return true;
 }

src/login/account.hpp

@@ -120,8 +120,9 @@ struct AccountDB {
 	///
 	/// @param self Database
 	/// @param acc Account data
+	/// @param refresh_token Whether or not to refresh the web auth token
 	/// @return true if successful
-	bool (*save)(AccountDB* self, const struct mmo_account* acc);
+	bool (*save)(AccountDB* self, const struct mmo_account* acc, bool refresh_token);
 
 	/// Finds an account with account_id and copies it to acc.
 	///

src/login/login.cpp

@@ -413,7 +413,7 @@ int login_mmo_auth(struct login_session_data* sd, bool isServer) {
 	safestrncpy(acc.last_ip, ip, sizeof(acc.last_ip));
 	acc.unban_time = 0;
 	acc.logincount++;
-	accounts->save(accounts, &acc);
+	accounts->save(accounts, &acc, true);
 
 	if( login_config.use_web_auth_token ){
 		safestrncpy( sd->web_auth_token, acc.web_auth_token, WEB_AUTH_TOKEN_LENGTH );
@@ -646,6 +646,8 @@ bool login_config_read(const char* cfgName, bool normal) {
 			login_config.client_hash_check = config_switch(w2);
 		else if(!strcmpi(w1, "use_web_auth_token"))
 			login_config.use_web_auth_token = config_switch(w2);
+		else if (!strcmpi(w1, "disable_webtoken_delay"))
+			login_config.disable_webtoken_delay = cap_value(atoi(w2), 0, INT_MAX);
 		else if(!strcmpi(w1, "client_hash")) {
 			int group = 0;
 			char md5[33];
@@ -761,6 +763,7 @@ void login_set_defaults() {
 	login_config.vip_sys.group = 5;
 #endif
 	login_config.use_web_auth_token = true;
+	login_config.disable_webtoken_delay = 10000;
 
 	//other default conf
 	safestrncpy(login_config.loginconf_name, "conf/login_athena.conf", sizeof(login_config.loginconf_name));

src/login/login.hpp

@@ -112,6 +112,7 @@ struct Login_Config {
 	} vip_sys;
 #endif
 	bool use_web_auth_token;						/// Enable web authentication token system
+	int disable_webtoken_delay;						/// delay disabling web token after char logs off in milliseconds
 };
 extern struct Login_Config login_config;
 

src/login/loginchrif.cpp

@@ -289,7 +289,7 @@ int logchrif_parse_reqchangemail(int fd, int id, char* ip){
 			safestrncpy(acc.email, new_email, 40);
 			ShowNotice("Char-server '%s': Modify an e-mail on an account (@email GM command) (account: %d (%s), new e-mail: %s, ip: %s).\n", ch_server[id].name, account_id, acc.userid, new_email, ip);
 			// Save
-			accounts->save(accounts, &acc);
+			accounts->save(accounts, &acc, false);
 		}
 	}
 	return 1;
@@ -324,7 +324,7 @@ int logchrif_parse_requpdaccstate(int fd, int id, char* ip){
 
 			acc.state = state;
 			// Save
-			accounts->save(accounts, &acc);
+			accounts->save(accounts, &acc, false);
 
 			// notify other servers
 			if (state != 0){
@@ -381,7 +381,7 @@ int logchrif_parse_reqbanacc(int fd, int id, char* ip){
 				acc.unban_time = timestamp;
 
 				// Save
-				accounts->save(accounts, &acc);
+				accounts->save(accounts, &acc, false);
 
 				WBUFW(buf,0) = 0x2731;
 				WBUFL(buf,2) = account_id;
@@ -423,7 +423,7 @@ int logchrif_parse_reqchgsex(int fd, int id, char* ip){
 
 			acc.sex = sex;
 			// Save
-			accounts->save(accounts, &acc);
+			accounts->save(accounts, &acc, false);
 
 			// announce to other servers
 			WBUFW(buf,0) = 0x2723;
@@ -483,7 +483,7 @@ int logchrif_parse_requnbanacc(int fd, int id, char* ip){
 		else{
 			ShowNotice("Char-server '%s': UnBan request (account: %d, ip: %s).\n", ch_server[id].name, account_id, ip);
 			acc.unban_time = 0;
-			accounts->save(accounts, &acc);
+			accounts->save(accounts, &acc, false);
 		}
 	}
 	return 1;
@@ -605,7 +605,7 @@ int logchrif_parse_updpincode(int fd){
 		if( accounts->load_num(accounts, &acc, RFIFOL(fd,4) ) ){
 			strncpy( acc.pincode, RFIFOCP(fd,8), PINCODE_LENGTH+1 );
 			acc.pincode_change = time( NULL );
-			accounts->save(accounts, &acc);
+			accounts->save(accounts, &acc, false);
 		}
 		RFIFOSKIP(fd,8 + PINCODE_LENGTH+1);
 	}
@@ -689,7 +689,7 @@ int logchrif_parse_reqvipdata(int fd) {
 				acc.char_slots = login_config.char_per_account;
 			}
 			acc.vip_time = vip_time;
-			accounts->save(accounts,&acc);
+			accounts->save(accounts,&acc, false);
 			if( flag&1 )
 				logchrif_sendvipdata(fd,&acc,((isvip)?0x1:0)|((flag&0x8)?0x4:0),mapfd);
 		}

src/map/battle.cpp

@@ -10089,8 +10089,6 @@ static const struct _battle_data {
 	{ "vip_disp_rate",                      &battle_config.vip_disp_rate,                   1,      0,      1,              },
 	{ "mon_trans_disable_in_gvg",           &battle_config.mon_trans_disable_in_gvg,        0,      0,      1,              },
 	{ "homunculus_S_growth_level",          &battle_config.hom_S_growth_level,             99,      0,      MAX_LEVEL,      },
-	{ "emblem_woe_change",                  &battle_config.emblem_woe_change,               0,      0,      1,              },
-	{ "emblem_transparency_limit",          &battle_config.emblem_transparency_limit,      80,      0,      100,            },
 	{ "discount_item_point_shop",			&battle_config.discount_item_point_shop,		0,		0,		3,				},
 	{ "update_enemy_position",				&battle_config.update_enemy_position,			0,		0,		1,				},
 	{ "devotion_rdamage",					&battle_config.devotion_rdamage,				0,		0,		100,			},

src/map/battle.hpp

@@ -559,8 +559,6 @@ struct Battle_Config
 	int vip_exp_penalty_job;
 	int vip_disp_rate;
 	int mon_trans_disable_in_gvg;
-	int emblem_woe_change;
-	int emblem_transparency_limit;
 	int discount_item_point_shop;
 	int update_enemy_position;
 	int devotion_rdamage;

src/map/clif.cpp

@@ -14304,7 +14304,7 @@ void clif_parse_GuildRequestEmblem(int fd,struct map_session_data *sd)
 enum e_result_validate_emblem {	// Used as Result for clif_validate_emblem
 	EMBVALIDATE_SUCCESS = 0,
 	EMBVALIDATE_ERR_RAW_FILEFORMAT,	// Invalid File Format (Error in zlib/decompression or malformed BMP header)
-	EMBVALIDATE_ERR_TRANSPARENCY	// uploaded emblem does not met the requirements of battle_config.emblem_transparency_limit
+	EMBVALIDATE_ERR_TRANSPARENCY	// uploaded emblem does not met the requirements of inter_config.emblem_transparency_limit
 };
 
 static enum e_result_validate_emblem clif_validate_emblem(const uint8* emblem, unsigned long emblem_len)
@@ -14320,7 +14320,7 @@ static enum e_result_validate_emblem clif_validate_emblem(const uint8* emblem, u
 		))
 		return EMBVALIDATE_ERR_RAW_FILEFORMAT;
 
-	if(battle_config.emblem_transparency_limit != 100) {
+	if(inter_config.emblem_transparency_limit != 100) {
 		int i, transcount = 1, tmp[3];
 		for(i = offset; i < buf_len-1; i++) {
 			int j = i%3;
@@ -14328,7 +14328,7 @@ static enum e_result_validate_emblem clif_validate_emblem(const uint8* emblem, u
 			if(j == 2 && (tmp[0] == 0xFFFF00FF) && (tmp[1] == 0xFFFF00) && (tmp[2] == 0xFF00FFFF)) //if pixel is transparent
 				transcount++;
 		}
-		if(((transcount*300)/(buf_len-offset)) > battle_config.emblem_transparency_limit) //convert in % to chk
+		if(((transcount*300)/(buf_len-offset)) > inter_config.emblem_transparency_limit) //convert in % to chk
 			return EMBVALIDATE_ERR_TRANSPARENCY;
 	}
 
@@ -14347,7 +14347,7 @@ void clif_parse_GuildChangeEmblem(int fd,struct map_session_data *sd){
 	if( !emblem_len || !sd->state.gmaster_flag )
 		return;
 
-	if(!(battle_config.emblem_woe_change) && is_agit_start() ){
+	if(!(inter_config.emblem_woe_change) && is_agit_start() ){
 		clif_messagecolor(&sd->bl,color_table[COLOR_RED],msg_txt(sd,385),false,SELF); //"You not allowed to change emblem during woe"
 		return;
 	}
@@ -14358,7 +14358,7 @@ void clif_parse_GuildChangeEmblem(int fd,struct map_session_data *sd){
 		return;
 	} else if(emb_val == EMBVALIDATE_ERR_TRANSPARENCY){
 		char output[128];
-		safesnprintf(output,sizeof(output),msg_txt(sd,387),battle_config.emblem_transparency_limit);
+		safesnprintf(output,sizeof(output),msg_txt(sd,387),inter_config.emblem_transparency_limit);
 		clif_messagecolor(&sd->bl,color_table[COLOR_RED],output,false,SELF); //"The chosen emblem was detected invalid as it contain too much transparency (limit=%d)\n"
 		return;
 	}
@@ -14381,7 +14381,7 @@ void clif_parse_GuildChangeEmblem2(int fd, struct map_session_data* sd) {
 	if (!sd->state.gmaster_flag)
 		return;
 
-	if (!battle_config.emblem_woe_change && is_agit_start()) {
+	if (!inter_config.emblem_woe_change && is_agit_start()) {
 		clif_messagecolor(&sd->bl, color_table[COLOR_RED], msg_txt(sd, 385), false, SELF); //"You not allowed to change emblem during woe"
 		return;
 	}

src/map/map.cpp

@@ -98,7 +98,8 @@ std::string log_db_pw = "";
 std::string log_db_db = "log";
 Sql* logmysql_handle;
 
-uint32 start_status_points = 48;
+// inter config
+struct inter_conf inter_config {};
 
 // DBMap declaration
 static DBMap* id_db=NULL; /// int id -> struct block_list*
@@ -4204,8 +4205,16 @@ int inter_config_read(const char *cfgName)
 			log_db_db = w2;
 		else
 		if(strcmpi(w1,"start_status_points")==0)
-			start_status_points=atoi(w2);
+			inter_config.start_status_points=atoi(w2);
 		else
+		if(strcmpi(w1, "emblem_woe_change")==0)
+			inter_config.emblem_woe_change = config_switch(w2) == 1;
+		else
+		if (strcmpi(w1, "emblem_transparency_limit") == 0) {
+			auto val = atoi(w2);
+			val = cap_value(val, 0, 100);
+			inter_config.emblem_transparency_limit = val;
+		}
 		if( mapreg_config_read(w1,w2) )
 			continue;
 		//support the import command, just like any other config
@@ -5117,6 +5126,11 @@ int do_init(int argc, char *argv[])
 	map_default.x = 156;
 	map_default.y = 191;
 
+	// default inter_config
+	inter_config.start_status_points = 48;
+	inter_config.emblem_woe_change = true;
+	inter_config.emblem_transparency_limit = 80;
+
 	cli_get_options(argc,argv);
 
 	rnd_init();

src/map/map.hpp

@@ -824,6 +824,14 @@ struct map_data_other_server {
 	uint16 port;
 };
 
+struct inter_conf {
+	uint32 start_status_points;
+	bool emblem_woe_change;
+	uint32 emblem_transparency_limit;
+};
+
+extern struct inter_conf inter_config;
+
 int map_getcell(int16 m,int16 x,int16 y,cell_chk cellchk);
 int map_getcellp(struct map_data* m,int16 x,int16 y,cell_chk cellchk);
 void map_setcell(int16 m, int16 x, int16 y, cell_t cell, bool flag);
@@ -838,8 +846,6 @@ extern int16 save_settings;
 extern int night_flag; // 0=day, 1=night [Yor]
 extern int enable_spy; //Determines if @spy commands are active.
 
-extern uint32 start_status_points;
-
 // Agit Flags
 extern bool agit_flag;
 extern bool agit2_flag;

src/map/pc.cpp

@@ -13686,17 +13686,17 @@ void PlayerStatPointDatabase::loadingFinished(){
 		level_one = std::make_shared<s_statpoint_entry>();
 
 		level_one->level = 1;
-		level_one->statpoints = start_status_points;
+		level_one->statpoints = inter_config.start_status_points;
 		level_one->traitpoints = 0;
 
 		this->put( 1, level_one );
 	}else if( battle_config.use_statpoint_table ){
-		if( level_one->statpoints != start_status_points ){
-			ShowError( "Status points for Level 1 (=%u) do not match inter_athena.conf value (=%u).\n", level_one->statpoints, start_status_points );
-			level_one->statpoints = start_status_points;
+		if( level_one->statpoints != inter_config.start_status_points ){
+			ShowError( "Status points for Level 1 (=%u) do not match inter_athena.conf value (=%u).\n", level_one->statpoints, inter_config.start_status_points );
+			level_one->statpoints = inter_config.start_status_points;
 		}
 	}else{
-		level_one->statpoints = start_status_points;
+		level_one->statpoints = inter_config.start_status_points;
 		level_one->traitpoints = 0;
 	}
 

src/web/CMakeLists.txt

@@ -0,0 +1,41 @@
+#
+# setup
+#
+set( WEB_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}  CACHE INTERNAL "" )
+
+
+#
+# web server
+#
+if ( NOT ENABLE_WEB_SERVER )
+	return()
+endif ( NOT ENABLE_WEB_SERVER )
+
+if( BUILD_SERVERS AND ENABLE_WEB_SERVER )
+message( STATUS "Creating target web-server" )
+file(GLOB WEB_HEADERS ${WEB_SOURCE_DIR}/*.hpp)
+file(GLOB WEB_SOURCES ${WEB_SOURCE_DIR}/*.cpp)
+set( DEPENDENCIES common yaml-cpp httplib)
+set( LIBRARIES ${GLOBAL_LIBRARIES})
+set( INCLUDE_DIRS ${GLOBAL_INCLUDE_DIRS} ${COMMON_BASE_INCLUDE_DIRS} ${HTTPLIB_INCLUDE_DIRS})
+set( DEFINITIONS "${GLOBAL_DEFINITIONS} ${COMMON_BASE_DEFINITIONS}" )
+set( SOURCE_FILES ${COMMON_BASE_HEADERS} ${COMMON_HEADERS} ${WEB_HEADERS} ${WEB_SOURCES} )
+source_group( common FILES ${COMMON_BASE_HEADERS} ${COMMON_HEADERS} )
+source_group( web FILES ${WEB_HEADERS} ${WEB_SOURCES} )
+include_directories( ${INCLUDE_DIRS} )
+
+#message( STATUS "web-server SOURCE_FILES=${SOURCE_FILES}")
+add_executable( web-server ${SOURCE_FILES} )
+#message( STATUS "web-server LIBRARIES=${LIBRARIES}, DEPENDENCIES=${DEPENDENCIES} DEFINITIONS=${DEFINITIONS}")
+add_dependencies( web-server ${DEPENDENCIES} )
+target_link_libraries( web-server ${LIBRARIES} ${DEPENDENCIES} )
+set_target_properties( web-server PROPERTIES COMPILE_FLAGS "${DEFINITIONS}" )
+if( INSTALL_COMPONENT_RUNTIME )
+	cpack_add_component( Runtime_webserver DESCRIPTION "web-server" DISPLAY_NAME "web-server" GROUP Runtime )
+	install( TARGETS web-server
+		DESTINATION "."
+		COMPONENT Runtime_webserver )
+endif( INSTALL_COMPONENT_RUNTIME )
+set( TARGET_LIST ${TARGET_LIST} web-server  CACHE INTERNAL "" )
+message( STATUS "Creating target web-server - done" )
+endif( BUILD_SERVERS AND ENABLE_WEB_SERVER)

src/web/Makefile.in

@@ -0,0 +1,93 @@
+
+COMMON_H = $(shell ls ../common/*.hpp)
+COMMON_AR = ../common/obj/common.a
+COMMON_INCLUDE = -I../common
+
+LIBCONFIG_H = $(shell ls ../../3rdparty/libconfig/*.h)
+LIBCONFIG_AR = ../../3rdparty/libconfig/obj/libconfig.a
+LIBCONFIG_INCLUDE = -I../../3rdparty/libconfig
+
+RAPIDYAML_OBJ = $(shell find ../../3rdparty/rapidyaml/ -type f -name "*.cpp" | sed -e "s/\.cpp/\.o/g" )
+RAPIDYAML_DIR_OBJ = $(RAPIDYAML_OBJ:%=obj/%)
+RAPIDYAML_AR = ../../3rdparty/rapidyaml/obj/ryml.a
+RAPIDYAML_H = $(shell find ../../3rdparty/rapidyaml/ -type f -name "*.h*")
+RAPIDYAML_INCLUDE = -I../../3rdparty/rapidyaml/src -I../../3rdparty/rapidyaml/ext/c4core/src
+
+HTTPLIB_OBJ = $(shell find ../../3rdparty/httplib/ -type f -name "*.cc" | sed -e "s/\.cc/\.o/g" )
+HTTPLIB_DIR_OBJ = $(HTTPLIB_OBJ:%=obj/%)
+HTTPLIB_AR = ../../3rdparty/httplib/obj/httplib.a
+HTTPLIB_H = $(shell find ../../3rdparty/httplib/ -type f -name "*.h")
+HTTPLIB_INCLUDE = -I../../3rdparty/httplib
+
+WEB_OBJ = $(shell ls *.cpp | sed -e "s/\.cpp/\.o/g")
+WEB_DIR_OBJ = $(WEB_OBJ:%=obj/%)
+WEB_H = $(shell ls *.hpp)
+
+
+SERVER_DEPENDS=web-server
+
+HAVE_MYSQL=@HAVE_MYSQL@
+ifeq ($(HAVE_MYSQL),yes)
+	SERVER_DEPENDS=web-server
+else
+	SERVER_DEPENDS=needs_mysql
+endif
+
+ALL_DEPENDS=server
+
+@SET_MAKE@
+
+#####################################################################
+.PHONY :all server clean help
+
+all: $(ALL_DEPENDS)
+
+server: $(SERVER_DEPENDS)
+
+clean:
+	@echo "	CLEAN	web"
+	@rm -rf *.o obj ../../@OWEB@@EXEEXT@
+
+help:
+	@echo "possible targets are 'server' 'all' 'clean' 'help'"
+	@echo "'server'    - web server"
+	@echo "'all'       - builds all above targets"
+	@echo "'clean'     - cleans builds and objects"
+	@echo "'help'      - outputs this message"
+
+#####################################################################
+
+needs_mysql:
+	@echo "MySQL not found or disabled by the configure script"
+	@exit 1
+
+# object directories
+
+obj:
+	@echo "	MKDIR	obj"
+	@-mkdir obj
+
+#executables
+
+web-server: obj $(WEB_DIR_OBJ) $(COMMON_AR) $(LIBCONFIG_AR) $(RAPIDYAML_AR) $(HTTPLIB_AR)
+	@echo "	LD	@OWEB@@EXEEXT@"
+	@@CXX@ @LDFLAGS@ -o ../../@OWEB@@EXEEXT@ $(WEB_DIR_OBJ) $(COMMON_AR) $(LIBCONFIG_AR) $(RAPIDYAML_AR) $(HTTPLIB_AR) @LIBS@ @MYSQL_LIBS@
+
+# web object files
+
+obj/%.o: %.cpp $(WEB_H) $(COMMON_H) $(LIBCONFIG_H) $(HTTPLIB_H) $(RAPIDYAML_H)
+	@echo "	CXX	$<"
+	@@CXX@ @CXXFLAGS@ $(COMMON_INCLUDE) $(LIBCONFIG_INCLUDE) $(HTTPLIB_INCLUDE) $(RAPIDYAML_INCLUDE) @MYSQL_CFLAGS@ @CPPFLAGS@ -c $(OUTPUT_OPTION) $<
+
+# missing object files
+$(COMMON_AR):
+	@$(MAKE) -C ../common server
+
+$(LIBCONFIG_AR):
+	@$(MAKE) -C ../../3rdparty/libconfig
+
+$(RAPIDYAML_AR):
+	@$(MAKE) -C ../../3rdparty/rapidyaml
+
+$(HTTPLIB_AR):
+	@$(MAKE) -C ../../3rdparty/httplib

src/web/auth.cpp

@@ -0,0 +1,91 @@
+// Copyright (c) rAthena Dev Teams - Licensed under GNU GPL
+// For more information, see LICENCE in the main folder
+
+#include "auth.hpp"
+
+#include <string.h>
+
+#include "../common/showmsg.hpp"
+#include "../common/sql.hpp"
+
+#include "http.hpp"
+#include "sqllock.hpp"
+#include "web.hpp"
+
+
+bool isAuthorized(const Request &request, bool checkGuildLeader) {
+	if (!request.has_file("AuthToken") || !request.has_file("AID"))
+		return false;
+
+	if (checkGuildLeader && !request.has_file("GDID"))
+		return false;
+	
+	auto token_str = request.get_file_value("AuthToken").content;
+	auto token = token_str.c_str();
+	auto account_id = std::stoi(request.get_file_value("AID").content);
+
+	SQLLock loginlock(LOGIN_SQL_LOCK);
+
+	loginlock.lock();
+
+	auto handle = loginlock.getHandle();
+
+	SqlStmt * stmt = SqlStmt_Malloc(handle);
+
+	if (SQL_SUCCESS != SqlStmt_Prepare(stmt,
+			"SELECT `account_id` FROM `%s` WHERE (`account_id` = ? AND `web_auth_token` = ? AND `web_auth_token_enabled` = '1')",
+			login_table)
+		|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 0, SQLDT_INT, &account_id, sizeof(account_id))
+		|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 1, SQLDT_STRING, (void *)token, strlen(token))
+		|| SQL_SUCCESS != SqlStmt_Execute(stmt)
+	) {
+		SqlStmt_ShowDebug(stmt);
+		SqlStmt_Free(stmt);
+		loginlock.unlock();
+		return false;
+	}
+
+	if (SqlStmt_NumRows(stmt) <= 0) {
+		ShowWarning("Request with AID %d and token %s unverified\n", account_id, token);
+		SqlStmt_Free(stmt);
+		loginlock.unlock();
+		return false;
+	}
+
+	SqlStmt_Free(stmt);
+	loginlock.unlock();
+	if (!checkGuildLeader) {
+		// we're done, auth ok
+		return true;
+	}
+
+	auto guild_id = std::stoi(request.get_file_value("GDID").content);
+
+	SQLLock charlock(CHAR_SQL_LOCK);
+	charlock.lock();
+	handle = charlock.getHandle();
+	stmt = SqlStmt_Malloc(handle);
+
+	if (SQL_SUCCESS != SqlStmt_Prepare(stmt,
+		"SELECT `account_id` FROM `%s` LEFT JOIN `%s` using (`char_id`) WHERE (`%s`.`account_id` = ? AND `%s`.`guild_id` = ?) LIMIT 1",
+		guild_db_table, char_db_table, char_db_table, guild_db_table)
+		|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 0, SQLDT_INT, &account_id, sizeof(account_id))
+		|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 1, SQLDT_INT, &guild_id, sizeof(guild_id))
+		|| SQL_SUCCESS != SqlStmt_Execute(stmt)
+	) {
+		SqlStmt_ShowDebug(stmt);
+		SqlStmt_Free(stmt);
+		charlock.unlock();
+		return false;
+	}
+
+	if (SqlStmt_NumRows(stmt) <= 0) {
+		ShowDebug("Request with AID %d GDID %d and token %s unverified\n", account_id, guild_id, token);
+		SqlStmt_Free(stmt);
+		charlock.unlock();
+		return false;
+	}
+	SqlStmt_Free(stmt);
+	charlock.unlock();
+	return true;
+}

src/web/auth.hpp

@@ -0,0 +1,11 @@
+// Copyright (c) rAthena Dev Teams - Licensed under GNU GPL
+// For more information, see LICENCE in the main folder
+
+#ifndef AUTH_HPP
+#define AUTH_HPP
+
+#include "http.hpp"
+
+bool isAuthorized(const Request &request, bool checkGuildLeader=false);
+
+#endif

src/web/charconfig_controller.cpp

@@ -0,0 +1,162 @@
+// Copyright (c) rAthena Dev Teams - Licensed under GNU GPL
+// For more information, see LICENCE in the main folder
+
+#include "charconfig_controller.hpp"
+
+#include <string>
+
+#include "../common/showmsg.hpp"
+#include "../common/sql.hpp"
+
+#include "auth.hpp"
+#include "http.hpp"
+#include "sqllock.hpp"
+#include "webutils.hpp"
+#include "web.hpp"
+
+HANDLER_FUNC(charconfig_save) {
+	if (!isAuthorized(req, false)) {
+		res.status = HTTP_BAD_REQUEST;
+		res.set_content("Error", "text/plain");
+		return;
+	}
+	
+	auto account_id = std::stoi(req.get_file_value("AID").content);
+	auto char_id = std::stoi(req.get_file_value("GID").content);
+	auto world_name_str = req.get_file_value("WorldName").content;
+	auto world_name = world_name_str.c_str();
+	std::string data;
+
+	if (req.has_file("data")) {
+		data = req.get_file_value("data").content;
+		addToJsonObject(data, "\"Type\": 1");
+	} else {
+		data = "{\"Type\": 1}";
+	}
+	SQLLock sl(WEB_SQL_LOCK);
+	sl.lock();
+	auto handle = sl.getHandle();
+	SqlStmt * stmt = SqlStmt_Malloc(handle);
+	if (SQL_SUCCESS != SqlStmt_Prepare(stmt,
+			"SELECT `account_id` FROM `%s` WHERE (`account_id` = ? AND `char_id` = ? AND `world_name` = ?) LIMIT 1",
+			char_configs_table)
+		|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 0, SQLDT_INT, &account_id, sizeof(account_id))
+		|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 1, SQLDT_INT, &char_id, sizeof(char_id))
+		|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 2, SQLDT_STRING, (void *)world_name, strlen(world_name))
+		|| SQL_SUCCESS != SqlStmt_Execute(stmt)
+	) {
+		SqlStmt_ShowDebug(stmt);
+		SqlStmt_Free(stmt);
+		sl.unlock();
+		res.status = HTTP_BAD_REQUEST;
+		res.set_content("Error", "text/plain");
+		return;
+	}
+
+	if (SqlStmt_NumRows(stmt) <= 0) {
+		if (SQL_SUCCESS != SqlStmt_Prepare(stmt,
+				"INSERT INTO `%s` (`account_id`, `char_id`, `world_name`, `data`) VALUES (?, ?, ?, ?)",
+				char_configs_table)
+			|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 0, SQLDT_INT, &account_id, sizeof(account_id))
+			|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 1, SQLDT_INT, &char_id, sizeof(char_id))
+			|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 2, SQLDT_STRING, (void *)world_name, strlen(world_name))
+			|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 3, SQLDT_STRING, (void *)data.c_str(), strlen(data.c_str()))
+			|| SQL_SUCCESS != SqlStmt_Execute(stmt)
+		) {
+			SqlStmt_ShowDebug(stmt);
+			SqlStmt_Free(stmt);
+			sl.unlock();
+			res.status = HTTP_BAD_REQUEST;
+			res.set_content("Error", "text/plain");
+			return;
+		}
+	} else {
+		if (SQL_SUCCESS != SqlStmt_Prepare(stmt,
+				"UPDATE `%s` SET `data` = ? WHERE (`account_id` = ? AND `char_id` = ? AND `world_name` = ?)",
+				char_configs_table)
+			|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 0, SQLDT_STRING, (void *)data.c_str(), strlen(data.c_str()))
+			|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 1, SQLDT_INT, &account_id, sizeof(account_id))
+			|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 2, SQLDT_INT, &char_id, sizeof(char_id))
+			|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 3, SQLDT_STRING, (void *)world_name, strlen(world_name))
+			|| SQL_SUCCESS != SqlStmt_Execute(stmt)
+		) {
+			SqlStmt_ShowDebug(stmt);
+			SqlStmt_Free(stmt);
+			sl.unlock();
+			res.status = HTTP_BAD_REQUEST;
+			res.set_content("Error", "text/plain");
+			return;
+		}
+	}
+
+	SqlStmt_Free(stmt);
+	sl.unlock();
+	res.set_content(data, "application/json");
+}
+
+HANDLER_FUNC(charconfig_load) {
+	if (!req.has_file("AID") || !req.has_file("WorldName")) {
+		res.status = HTTP_BAD_REQUEST;
+		res.set_content("Error", "text/plain");
+		return;
+	}
+
+	// TODO: Figure out when client sends AuthToken for this path, then add packetver check
+	// if (!isAuthorized(req)) {
+		// ShowError("Not authorized!\n");
+		// message.reply(web::http::status_codes::Forbidden);
+		// return;
+	// }
+
+	auto account_id = std::stoi(req.get_file_value("AID").content);
+	auto char_id = std::stoi(req.get_file_value("GID").content);
+	auto world_name_str = req.get_file_value("WorldName").content;
+	auto world_name = world_name_str.c_str();
+
+	SQLLock sl(WEB_SQL_LOCK);
+	sl.lock();
+	auto handle = sl.getHandle();
+	SqlStmt * stmt = SqlStmt_Malloc(handle);
+	if (SQL_SUCCESS != SqlStmt_Prepare(stmt,
+			"SELECT `data` FROM `%s` WHERE (`account_id` = ? AND `char_id` = ? AND `world_name` = ?) LIMIT 1",
+			char_configs_table)
+		|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 0, SQLDT_INT, &account_id, sizeof(account_id))
+		|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 1, SQLDT_INT, &char_id, sizeof(char_id))
+		|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 2, SQLDT_STRING, (void *)world_name, strlen(world_name))
+		|| SQL_SUCCESS != SqlStmt_Execute(stmt)
+	) {
+		SqlStmt_ShowDebug(stmt);
+		SqlStmt_Free(stmt);
+		sl.unlock();
+		res.status = HTTP_BAD_REQUEST;
+		res.set_content("Error", "text/plain");
+		return;
+	}
+
+	if (SqlStmt_NumRows(stmt) <= 0) {
+		SqlStmt_Free(stmt);
+		ShowDebug("[AccountID: %d, CharID: %d, World: \"%s\"] Not found in table, sending new info.\n", account_id, char_id, world_name);
+		sl.unlock();
+		res.set_content("{\"Type\": 1}", "application/json");
+		return;
+	}
+
+	char databuf[SQL_BUFFER_SIZE];
+
+	if (SQL_SUCCESS != SqlStmt_BindColumn(stmt, 0, SQLDT_STRING, &databuf, sizeof(databuf), NULL, NULL)
+		|| SQL_SUCCESS != SqlStmt_NextRow(stmt)
+	) {
+		SqlStmt_ShowDebug(stmt);
+		SqlStmt_Free(stmt);
+		sl.unlock();
+		res.status = HTTP_BAD_REQUEST;
+		res.set_content("Error", "text/plain");
+		return;
+	}
+
+	SqlStmt_Free(stmt);
+	sl.unlock();
+
+	databuf[sizeof(databuf) - 1] = 0;
+	res.set_content(databuf, "application/json");
+}

src/web/charconfig_controller.hpp

@@ -0,0 +1,12 @@
+// Copyright (c) rAthena Dev Teams - Licensed under GNU GPL
+// For more information, see LICENCE in the main folder
+
+#ifndef CHARCONFIG_CONTROLLER_HPP
+#define CHARCONFIG_CONTROLLER_HPP
+
+#include "http.hpp"
+
+HANDLER_FUNC(charconfig_save);
+HANDLER_FUNC(charconfig_load);
+
+#endif

src/web/emblem_controller.cpp

@@ -0,0 +1,287 @@
+// Copyright (c) rAthena Dev Teams - Licensed under GNU GPL
+// For more information, see LICENCE in the main folder
+
+#include "emblem_controller.hpp"
+
+#include <fstream>
+#include <iostream>
+#include <ostream>
+
+#include "../common/showmsg.hpp"
+#include "../common/socket.hpp"
+
+#include "auth.hpp"
+#include "http.hpp"
+#include "sqllock.hpp"
+#include "web.hpp"
+
+// Max size is 50kb for gif
+#define MAX_EMBLEM_SIZE 50000
+#define START_VERSION 1
+
+HANDLER_FUNC(emblem_download) {
+	if (!isAuthorized(req, false)) {
+		res.status = HTTP_BAD_REQUEST;
+		res.set_content("Error", "text/plain");
+		return;
+	}
+
+	bool fail = false;
+	if (!req.has_file("GDID")) {
+		ShowDebug("Missing GuildID field for emblem download.\n");
+		fail = true;
+	}
+	if (!req.has_file("WorldName")) {
+		ShowDebug("Missing WorldName field for emblem download.\n");
+		fail = true;
+	}
+	if (fail) {
+		res.status = HTTP_BAD_REQUEST;
+		res.set_content("Error", "text/plain");
+		return;
+	}
+
+	auto world_name_str = req.get_file_value("WorldName").content;
+	auto world_name = world_name_str.c_str();
+	auto guild_id = std::stoi(req.get_file_value("GDID").content);
+
+	SQLLock sl(WEB_SQL_LOCK);
+	sl.lock();
+	auto handle = sl.getHandle();
+	SqlStmt * stmt = SqlStmt_Malloc(handle);
+	if (SQL_SUCCESS != SqlStmt_Prepare(stmt,
+			"SELECT `version`, `file_type`, `file_data` FROM `%s` WHERE (`guild_id` = ? AND `world_name` = ?)",
+			guild_emblems_table)
+		|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 0, SQLDT_INT, &guild_id, sizeof(guild_id))
+		|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 1, SQLDT_STRING, (void *)world_name, strlen(world_name))
+		|| SQL_SUCCESS != SqlStmt_Execute(stmt)
+	) {
+		SqlStmt_ShowDebug(stmt);
+		SqlStmt_Free(stmt);
+		sl.unlock();
+		res.status = HTTP_BAD_REQUEST;
+		res.set_content("Error", "text/plain");
+		return;
+	}
+
+	uint32 version = 0;
+	char filetype[256];
+	char blob[MAX_EMBLEM_SIZE]; // yikes
+	uint32 emblem_size;
+
+	if (SqlStmt_NumRows(stmt) <= 0) {
+		SqlStmt_Free(stmt);
+		ShowError("[GuildID: %d / World: \"%s\"] Not found in table\n", guild_id, world_name);
+		sl.unlock();
+		res.status = HTTP_NOT_FOUND;
+		res.set_content("Error", "text/plain");
+		return;
+	}
+
+
+	if (SQL_SUCCESS != SqlStmt_BindColumn(stmt, 0, SQLDT_UINT32, &version, sizeof(version), nullptr, nullptr)
+		|| SQL_SUCCESS != SqlStmt_BindColumn(stmt, 1, SQLDT_STRING, &filetype, sizeof(filetype), nullptr, nullptr)
+		|| SQL_SUCCESS != SqlStmt_BindColumn(stmt, 2, SQLDT_BLOB, &blob, MAX_EMBLEM_SIZE, &emblem_size, nullptr)
+		|| SQL_SUCCESS != SqlStmt_NextRow(stmt)
+	) {
+		SqlStmt_ShowDebug(stmt);
+		SqlStmt_Free(stmt);
+		sl.unlock();
+		res.status = HTTP_BAD_REQUEST;
+		res.set_content("Error", "text/plain");
+		return;
+	}
+
+	SqlStmt_Free(stmt);
+	sl.unlock();
+
+	if (emblem_size > MAX_EMBLEM_SIZE) {
+		ShowDebug("Emblem is too big, current size is %d and the max length is %d.\n", emblem_size, MAX_EMBLEM_SIZE);
+		res.status = HTTP_BAD_REQUEST;
+		res.set_content("Error", "text/plain");
+		return;
+	}
+	const char * content_type;
+	if (!strcmp(filetype, "BMP"))
+		content_type = "image/bmp";
+	else if (!strcmp(filetype, "GIF"))
+		content_type = "image/gif";
+	else {
+		ShowError("Invalid image type %s, rejecting!\n", filetype);
+		res.status = HTTP_NOT_FOUND;
+		res.set_content("Error", "text/plain");
+		return;
+	}
+
+	res.body.assign(blob, emblem_size);
+	res.set_header("Content-Type", content_type);
+}
+
+
+HANDLER_FUNC(emblem_upload) {
+	if (!isAuthorized(req, true)) {
+		res.status = HTTP_BAD_REQUEST;
+		res.set_content("Error", "text/plain");
+		return;
+	}
+
+	bool fail = false;
+	if (!req.has_file("GDID")) {
+		ShowDebug("Missing GuildID field for emblem upload.\n");
+		fail = true;
+	}
+	if (!req.has_file("WorldName")) {
+		ShowDebug("Missing WorldName field for emblem upload.\n");
+		fail = true;
+	}
+	if (!req.has_file("Img")) {
+		ShowDebug("Missing Img field for emblem upload.\n");
+		fail = true;
+	}
+	if (!req.has_file("ImgType")) {
+		ShowDebug("Missing ImgType for emblem upload.\n");
+		fail = true;
+	}
+	if (fail) {
+		res.status = HTTP_BAD_REQUEST;
+		res.set_content("Error", "text/plain");
+		return;
+	}
+
+	auto world_name_str = req.get_file_value("WorldName").content;
+	auto world_name = world_name_str.c_str();
+	auto guild_id = std::stoi(req.get_file_value("GDID").content);
+	auto imgtype_str = req.get_file_value("ImgType").content;
+	auto imgtype = imgtype_str.c_str();
+	auto img = req.get_file_value("Img").content;
+	auto img_cstr = img.c_str();
+	
+	if (imgtype_str != "BMP" && imgtype_str != "GIF") {
+		ShowError("Invalid image type %s, rejecting!\n", imgtype);
+		res.status = HTTP_BAD_REQUEST;
+		res.set_content("Error", "text/plain");
+		return;
+	}
+
+	auto length = img.length();
+	if (length > MAX_EMBLEM_SIZE) {
+		ShowDebug("Emblem is too big, current size is %lu and the max length is %d.\n", length, MAX_EMBLEM_SIZE);
+		res.status = HTTP_BAD_REQUEST;
+		res.set_content("Error", "text/plain");
+		return;
+	}
+
+	if (imgtype_str == "GIF") {
+		if (!web_config.allow_gifs) {
+			ShowDebug("Client sent GIF image but GIF image support is disabled.\n");
+			res.status = HTTP_BAD_REQUEST;
+			res.set_content("Error", "text/plain");
+			return;
+		}
+		if (img.substr(0, 3) != "GIF") {
+			ShowDebug("Server received ImgType GIF but received file does not start with \"GIF\" magic header.\n");
+			res.status = HTTP_BAD_REQUEST;
+			res.set_content("Error", "text/plain");
+			return;
+		}
+		// TODO: transparency check for GIF emblems
+	}
+	else if (imgtype_str == "BMP") {
+		if (length < 14) {
+			ShowDebug("File size is too short\n");
+			res.status = HTTP_BAD_REQUEST;
+			res.set_content("Error", "text/plain");
+			return;
+		}
+		if (img.substr(0, 2) != "BM") {
+			ShowDebug("Server received ImgType BMP but received file does not start with \"BM\" magic header.\n");
+			res.status = HTTP_BAD_REQUEST;
+			res.set_content("Error", "text/plain");
+			return;
+		}
+		if (RBUFL(img_cstr, 2) != length) {
+			ShowDebug("Bitmap size doesn't match size in file header.\n");
+			res.status = HTTP_BAD_REQUEST;
+			res.set_content("Error", "text/plain");
+			return;
+		}
+
+		if (inter_config.emblem_transparency_limit < 100) {
+			uint32 offset = RBUFL(img_cstr, 0x0A);
+			int i, transcount = 1, tmp[3];
+			for (i = offset; i < length - 1; i++) {
+				int j = i % 3;
+				tmp[j] = RBUFL(img_cstr, i);
+				if (j == 2 && (tmp[0] == 0xFFFF00FF) && (tmp[1] == 0xFFFF00) && (tmp[2] == 0xFF00FFFF)) //if pixel is transparent
+					transcount++;
+			}
+			if (((transcount * 300) / (length - offset)) > inter_config.emblem_transparency_limit) {
+				ShowDebug("Bitmap transparency check failed.\n");
+				res.status = HTTP_BAD_REQUEST;
+				res.set_content("Error", "text/plain");
+				return;
+			}
+		}
+	}
+
+	SQLLock sl(WEB_SQL_LOCK);
+	sl.lock();
+	auto handle = sl.getHandle();
+	SqlStmt * stmt = SqlStmt_Malloc(handle);
+	if (SQL_SUCCESS != SqlStmt_Prepare(stmt,
+			"SELECT `version` FROM `%s` WHERE (`guild_id` = ? AND `world_name` = ?)",
+			guild_emblems_table)
+		|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 0, SQLDT_INT, &guild_id, sizeof(guild_id))
+		|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 1, SQLDT_STRING, (void *)world_name, strlen(world_name))
+		|| SQL_SUCCESS != SqlStmt_Execute(stmt)
+	) {
+		SqlStmt_ShowDebug(stmt);
+		SqlStmt_Free(stmt);
+		sl.unlock();
+		res.status = HTTP_BAD_REQUEST;
+		res.set_content("Error", "text/plain");
+		return;
+	}
+
+	uint32 version = START_VERSION;
+
+	if (SqlStmt_NumRows(stmt) > 0) {
+		if (SQL_SUCCESS != SqlStmt_BindColumn(stmt, 0, SQLDT_UINT32, &version, sizeof(version), NULL, NULL)
+			|| SQL_SUCCESS != SqlStmt_NextRow(stmt)
+		) {
+			SqlStmt_ShowDebug(stmt);
+			SqlStmt_Free(stmt);
+			sl.unlock();
+			res.status = HTTP_BAD_REQUEST;
+			res.set_content("Error", "text/plain");
+			return;
+		}
+		version += 1;
+	}
+
+	// insert new
+	if (SQL_SUCCESS != SqlStmt_Prepare(stmt,
+		"REPLACE INTO `%s` (`version`, `file_type`, `guild_id`, `world_name`, `file_data`) VALUES (?, ?, ?, ?, ?)",
+		guild_emblems_table)
+		|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 0, SQLDT_UINT32, &version, sizeof(version))
+		|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 1, SQLDT_STRING, (void *)imgtype, strlen(imgtype))
+		|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 2, SQLDT_INT, &guild_id, sizeof(guild_id))
+		|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 3, SQLDT_STRING, (void *)world_name, strlen(world_name))
+		|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 4, SQLDT_BLOB, (void *)img.c_str(), length)
+		|| SQL_SUCCESS != SqlStmt_Execute(stmt)
+	) {
+		SqlStmt_ShowDebug(stmt);
+		SqlStmt_Free(stmt);
+		sl.unlock();
+		res.status = HTTP_BAD_REQUEST;
+		res.set_content("Error", "text/plain");
+		return;
+	}
+
+	SqlStmt_Free(stmt);
+	sl.unlock();
+
+	std::ostringstream stream;
+	stream << "{\"Type\":1,\"version\":" << version << "}";
+	res.set_content(stream.str(), "application/json");
+}

src/web/emblem_controller.hpp

@@ -0,0 +1,12 @@
+// Copyright (c) rAthena Dev Teams - Licensed under GNU GPL
+// For more information, see LICENCE in the main folder
+
+#ifndef EMBLEM_CONTROLLER_HPP
+#define EMBLEM_CONTROLLER_HPP
+
+#include "http.hpp"
+
+HANDLER_FUNC(emblem_download);
+HANDLER_FUNC(emblem_upload);
+
+#endif

src/web/http.hpp

@@ -0,0 +1,21 @@
+// Copyright (c) rAthena Dev Teams - Licensed under GNU GPL
+// For more information, see LICENCE in the main folder
+
+#ifndef HTTP_HPP
+#define HTTP_HPP
+
+#ifdef WIN32
+#include "../common/winapi.hpp"
+#endif
+
+#include <httplib.h>
+
+
+typedef httplib::Request Request;
+typedef httplib::Response Response;
+
+#define HANDLER_FUNC(x) void x (const Request &req, Response &res)
+typedef HANDLER_FUNC((*handler_func));
+
+
+#endif

src/web/merchantstore_controller.cpp

@@ -0,0 +1,169 @@
+// Copyright (c) rAthena Dev Teams - Licensed under GNU GPL
+// For more information, see LICENCE in the main folder
+
+#include "merchantstore_controller.hpp"
+
+#include <string>
+
+#include "../common/showmsg.hpp"
+#include "../common/sql.hpp"
+
+#include "auth.hpp"
+#include "http.hpp"
+#include "sqllock.hpp"
+#include "webutils.hpp"
+#include "web.hpp"
+
+HANDLER_FUNC(merchantstore_save) {
+	if (!isAuthorized(req, false)) {
+		res.status = HTTP_BAD_REQUEST;
+		res.set_content("Error", "text/plain");
+		return;
+	}
+
+	auto account_id = std::stoi(req.get_file_value("AID").content);
+	auto char_id = std::stoi(req.get_file_value("GID").content);
+	auto world_name_str = req.get_file_value("WorldName").content;
+	auto world_name = world_name_str.c_str();
+	auto store_type = std::stoi(req.get_file_value("Type").content);
+	std::string data;
+
+	if (req.has_file("data")) {
+		data = req.get_file_value("data").content;
+		addToJsonObject(data, "\"Type\": 1");
+	} else {
+		data = "{\"Type\": 1}";
+	}
+	SQLLock sl(WEB_SQL_LOCK);
+	sl.lock();
+	auto handle = sl.getHandle();
+	SqlStmt* stmt = SqlStmt_Malloc(handle);
+	if (SQL_SUCCESS != SqlStmt_Prepare(stmt,
+			"SELECT `account_id` FROM `%s` WHERE (`account_id` = ? AND `char_id` = ? AND `world_name` = ? AND `store_type` = ?) LIMIT 1",
+			merchant_configs_table)
+		|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 0, SQLDT_INT, &account_id, sizeof(account_id))
+		|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 1, SQLDT_INT, &char_id, sizeof(char_id))
+		|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 2, SQLDT_STRING, (void *)world_name, strlen(world_name))
+		|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 3, SQLDT_INT, &store_type, sizeof(store_type))
+		|| SQL_SUCCESS != SqlStmt_Execute(stmt)
+	) {
+		SqlStmt_ShowDebug(stmt);
+		SqlStmt_Free(stmt);
+		sl.unlock();
+		res.status = HTTP_BAD_REQUEST;
+		res.set_content("Error", "text/plain");
+		return;
+	}
+
+	if (SqlStmt_NumRows(stmt) <= 0) {
+		if (SQL_SUCCESS != SqlStmt_Prepare(stmt,
+				"INSERT INTO `%s` (`account_id`, `char_id`, `world_name`, `store_type`, `data`) VALUES (?, ?, ?, ?, ?)",
+				merchant_configs_table)
+			|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 0, SQLDT_INT, &account_id, sizeof(account_id))
+			|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 1, SQLDT_INT, &char_id, sizeof(char_id))
+			|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 2, SQLDT_STRING, (void *)world_name, strlen(world_name))
+			|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 3, SQLDT_INT, &store_type, sizeof(store_type))
+			|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 4, SQLDT_STRING, (void *)data.c_str(), strlen(data.c_str()))
+			|| SQL_SUCCESS != SqlStmt_Execute(stmt)
+		) {
+			SqlStmt_ShowDebug(stmt);
+			SqlStmt_Free(stmt);
+			sl.unlock();
+			res.status = HTTP_BAD_REQUEST;
+			res.set_content("Error", "text/plain");
+			return;
+		}
+	}
+	else {
+		if (SQL_SUCCESS != SqlStmt_Prepare(stmt,
+				"UPDATE `%s` SET `data` = ? WHERE (`account_id` = ? AND `char_id` = ? AND `world_name` = ? AND `store_type` = ?)",
+				merchant_configs_table)
+			|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 0, SQLDT_STRING, (void *)data.c_str(), strlen(data.c_str()))
+			|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 1, SQLDT_INT, &account_id, sizeof(account_id))
+			|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 2, SQLDT_INT, &char_id, sizeof(char_id))
+			|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 3, SQLDT_STRING, (void *)world_name, strlen(world_name))
+			|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 4, SQLDT_INT, &store_type, sizeof(store_type))
+			|| SQL_SUCCESS != SqlStmt_Execute(stmt)
+		) {
+			SqlStmt_ShowDebug(stmt);
+			SqlStmt_Free(stmt);
+			sl.unlock();
+			res.status = HTTP_BAD_REQUEST;
+			res.set_content("Error", "text/plain");
+			return;
+		}
+	}
+
+	SqlStmt_Free(stmt);
+	sl.unlock();
+	res.set_content(data, "application/json");
+}
+
+HANDLER_FUNC(merchantstore_load) {
+	if (!req.has_file("AID") || !req.has_file("WorldName")) {
+		res.status = HTTP_BAD_REQUEST;
+		res.set_content("Error", "text/plain");
+		return;
+	}
+
+	// TODO: Figure out when client sends AuthToken for this path, then add packetver check
+	// if (!isAuthorized(req)) {
+		// ShowError("Not authorized!\n");
+		// message.reply(web::http::status_codes::Forbidden);
+		// return;
+	// }
+
+	auto account_id = std::stoi(req.get_file_value("AID").content);
+	auto char_id = std::stoi(req.get_file_value("GID").content);
+	auto world_name_str = req.get_file_value("WorldName").content;
+	auto world_name = world_name_str.c_str();
+	auto store_type = std::stoi(req.get_file_value("Type").content);
+
+	SQLLock sl(WEB_SQL_LOCK);
+	sl.lock();
+	auto handle = sl.getHandle();
+	SqlStmt* stmt = SqlStmt_Malloc(handle);
+	if (SQL_SUCCESS != SqlStmt_Prepare(stmt,
+			"SELECT `data` FROM `%s` WHERE (`account_id` = ? AND `char_id` = ? AND `world_name` = ? AND `store_type` = ?) LIMIT 1",
+			merchant_configs_table)
+		|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 0, SQLDT_INT, &account_id, sizeof(account_id))
+		|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 1, SQLDT_INT, &char_id, sizeof(char_id))
+		|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 2, SQLDT_STRING, (void *)world_name, strlen(world_name))
+		|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 3, SQLDT_INT, &store_type, sizeof(store_type))
+		|| SQL_SUCCESS != SqlStmt_Execute(stmt)
+	) {
+		SqlStmt_ShowDebug(stmt);
+		SqlStmt_Free(stmt);
+		sl.unlock();
+		res.status = HTTP_BAD_REQUEST;
+		res.set_content("Error", "text/plain");
+		return;
+	}
+
+	if (SqlStmt_NumRows(stmt) <= 0) {
+		SqlStmt_Free(stmt);
+		ShowDebug("[AccountID: %d, World: \"%s\"] Not found in table, sending new info.\n", account_id, world_name);
+		sl.unlock();
+		res.set_content("{\"Type\": 1}", "application/json");
+		return;
+	}
+
+	char databuf[SQL_BUFFER_SIZE] = { 0 };
+
+	if (SQL_SUCCESS != SqlStmt_BindColumn(stmt, 0, SQLDT_STRING, &databuf, sizeof(databuf), NULL, NULL)
+		|| SQL_SUCCESS != SqlStmt_NextRow(stmt)
+	) {
+		SqlStmt_ShowDebug(stmt);
+		SqlStmt_Free(stmt);
+		sl.unlock();
+		res.status = HTTP_BAD_REQUEST;
+		res.set_content("Error", "text/plain");
+		return;
+	}
+
+	SqlStmt_Free(stmt);
+	sl.unlock();
+
+	databuf[sizeof(databuf) - 1] = 0;
+	res.set_content(databuf, "application/json");
+}

src/web/merchantstore_controller.hpp

@@ -0,0 +1,12 @@
+// Copyright (c) rAthena Dev Teams - Licensed under GNU GPL
+// For more information, see LICENCE in the main folder
+
+#ifndef MERCHANTSTORE_CONTROLLER_HPP
+#define MERCHANTSTORE_CONTROLLER_HPP
+
+#include "http.hpp"
+
+HANDLER_FUNC(merchantstore_save);
+HANDLER_FUNC(merchantstore_load);
+
+#endif

src/web/sqllock.cpp

@@ -0,0 +1,71 @@
+// Copyright (c) rAthena Dev Teams - Licensed under GNU GPL
+// For more information, see LICENCE in the main folder
+
+#include "sqllock.hpp"
+
+#include <mutex>
+
+#include "../common/showmsg.hpp"
+
+std::mutex dbmutex;
+
+extern Sql * login_handle;
+extern Sql * char_handle;
+extern Sql * web_handle;
+
+
+SQLLock::SQLLock(locktype lt) : ulock(dbmutex, std::defer_lock), lt(lt) {
+	switch(lt) {
+		case LOGIN_SQL_LOCK:
+			handle = login_handle;
+			break;
+		case CHAR_SQL_LOCK:
+			handle = char_handle;
+			break;
+		case WEB_SQL_LOCK:
+			handle = web_handle;
+			break;
+	}
+}
+
+void SQLLock::lock() {
+	// switch(lt) {
+	//     case LOGIN_SQL_LOCK:
+	//         ShowDebug("Locking login sql\n");
+	//         break;
+	//     case CHAR_SQL_LOCK:
+	//         ShowDebug("Locking char sql\n");
+	//         break;
+	//     case WEB_SQL_LOCK:
+	//         ShowDebug("Locking web sql\n");
+	//         break;
+	// }
+	ulock.lock();
+}
+
+void SQLLock::unlock() {
+	ulock.unlock();
+	// switch(lt) {
+	//     case LOGIN_SQL_LOCK:
+	//         ShowDebug("Unlocked login sql\n");
+	//         break;
+	//     case CHAR_SQL_LOCK:
+	//         ShowDebug("Unlocked char sql\n");
+	//         break;
+	//     case WEB_SQL_LOCK:
+	//         ShowDebug("Unlocked web sql\n");
+	//         break;
+	// }
+
+}
+
+
+// can only get handle if locked
+Sql * SQLLock::getHandle() {
+	if (!ulock.owns_lock())
+		return nullptr;
+	return handle;
+}
+
+SQLLock::~SQLLock() {
+}

src/web/sqllock.hpp

@@ -0,0 +1,32 @@
+// Copyright (c) rAthena Dev Teams - Licensed under GNU GPL
+// For more information, see LICENCE in the main folder
+
+#ifndef SQLLOCK_HPP
+#define SQLLOCK_HPP
+
+#include <mutex>
+
+#include "../common/sql.hpp"
+
+enum locktype {
+	LOGIN_SQL_LOCK,
+	CHAR_SQL_LOCK,
+	WEB_SQL_LOCK
+};
+
+class SQLLock {
+private:
+	std::unique_lock<std::mutex> ulock;
+	Sql * handle;
+	locktype lt;
+
+public:
+	SQLLock(locktype);
+	~SQLLock();
+	void lock();
+	void unlock();
+	Sql * getHandle();
+};
+
+
+#endif

src/web/userconfig_controller.cpp

@@ -0,0 +1,156 @@
+// Copyright (c) rAthena Dev Teams - Licensed under GNU GPL
+// For more information, see LICENCE in the main folder
+
+#include "userconfig_controller.hpp"
+
+#include <string>
+
+#include "../common/showmsg.hpp"
+#include "../common/sql.hpp"
+
+#include "auth.hpp"
+#include "http.hpp"
+#include "sqllock.hpp"
+#include "webutils.hpp"
+#include "web.hpp"
+
+HANDLER_FUNC(userconfig_save) {
+	if (!isAuthorized(req, false)) {
+		res.status = HTTP_BAD_REQUEST;
+		res.set_content("Error", "text/plain");
+		return;
+	}
+	
+	auto account_id = std::stoi(req.get_file_value("AID").content);
+	auto world_name_str = req.get_file_value("WorldName").content;
+	auto world_name = world_name_str.c_str();
+	std::string data;
+
+	if (req.has_file("data")) {
+		data = req.get_file_value("data").content;
+		addToJsonObject(data, "\"Type\": 1");
+	} else {
+		data = "{\"Type\": 1}";
+	}
+	SQLLock sl(WEB_SQL_LOCK);
+	sl.lock();
+	auto handle = sl.getHandle();
+	SqlStmt * stmt = SqlStmt_Malloc(handle);
+	if (SQL_SUCCESS != SqlStmt_Prepare(stmt,
+			"SELECT `account_id` FROM `%s` WHERE (`account_id` = ? AND `world_name` = ?) LIMIT 1",
+			user_configs_table)
+		|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 0, SQLDT_INT, &account_id, sizeof(account_id))
+		|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 1, SQLDT_STRING, (void *)world_name, strlen(world_name))
+		|| SQL_SUCCESS != SqlStmt_Execute(stmt)
+	) {
+		SqlStmt_ShowDebug(stmt);
+		SqlStmt_Free(stmt);
+		sl.unlock();
+		res.status = HTTP_BAD_REQUEST;
+		res.set_content("Error", "text/plain");
+		return;
+	}
+
+	if (SqlStmt_NumRows(stmt) <= 0) {
+		if (SQL_SUCCESS != SqlStmt_Prepare(stmt,
+				"INSERT INTO `%s` (`account_id`, `world_name`, `data`) VALUES (?, ?, ?)",
+				user_configs_table)
+			|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 0, SQLDT_INT, &account_id, sizeof(account_id))
+			|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 1, SQLDT_STRING, (void *)world_name, strlen(world_name))
+			|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 2, SQLDT_STRING, (void *)data.c_str(), strlen(data.c_str()))
+			|| SQL_SUCCESS != SqlStmt_Execute(stmt)
+		) {
+			SqlStmt_ShowDebug(stmt);
+			SqlStmt_Free(stmt);
+			sl.unlock();
+			res.status = HTTP_BAD_REQUEST;
+			res.set_content("Error", "text/plain");
+			return;
+		}
+	} else {
+		if (SQL_SUCCESS != SqlStmt_Prepare(stmt,
+				"UPDATE `%s` SET `data` = ? WHERE (`account_id` = ? AND `world_name` = ?)",
+				user_configs_table)
+			|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 0, SQLDT_STRING, (void *)data.c_str(), strlen(data.c_str()))
+			|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 1, SQLDT_INT, &account_id, sizeof(account_id))
+			|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 2, SQLDT_STRING, (void *)world_name, strlen(world_name))
+			|| SQL_SUCCESS != SqlStmt_Execute(stmt)
+		) {
+			SqlStmt_ShowDebug(stmt);
+			SqlStmt_Free(stmt);
+			sl.unlock();
+			res.status = HTTP_BAD_REQUEST;
+			res.set_content("Error", "text/plain");
+			return;
+		}
+	}
+
+	SqlStmt_Free(stmt);
+	sl.unlock();
+	res.set_content(data, "application/json");
+}
+
+HANDLER_FUNC(userconfig_load) {
+	if (!req.has_file("AID") || !req.has_file("WorldName")) {
+		res.status = HTTP_BAD_REQUEST;
+		res.set_content("Error", "text/plain");
+		return;
+	}
+
+	// TODO: Figure out when client sends AuthToken for this path, then add packetver check
+	// if (!isAuthorized(req)) {
+		// ShowError("Not authorized!\n");
+		// message.reply(web::http::status_codes::Forbidden);
+		// return;
+	// }
+
+	auto account_id = std::stoi(req.get_file_value("AID").content);
+	auto world_name_str = req.get_file_value("WorldName").content;
+	auto world_name = world_name_str.c_str();
+
+	SQLLock sl(WEB_SQL_LOCK);
+	sl.lock();
+	auto handle = sl.getHandle();
+	SqlStmt * stmt = SqlStmt_Malloc(handle);
+	if (SQL_SUCCESS != SqlStmt_Prepare(stmt,
+			"SELECT `data` FROM `%s` WHERE (`account_id` = ? AND `world_name` = ?) LIMIT 1",
+			user_configs_table)
+		|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 0, SQLDT_INT, &account_id, sizeof(account_id))
+		|| SQL_SUCCESS != SqlStmt_BindParam(stmt, 1, SQLDT_STRING, (void *)world_name, strlen(world_name))
+		|| SQL_SUCCESS != SqlStmt_Execute(stmt)
+	) {
+		SqlStmt_ShowDebug(stmt);
+		SqlStmt_Free(stmt);
+		sl.unlock();
+		res.status = HTTP_BAD_REQUEST;
+		res.set_content("Error", "text/plain");
+		return;
+	}
+
+	if (SqlStmt_NumRows(stmt) <= 0) {
+		SqlStmt_Free(stmt);
+		ShowDebug("[AccountID: %d, World: \"%s\"] Not found in table, sending new info.\n", account_id, world_name);
+		sl.unlock();
+		res.set_content("{\"Type\": 1}", "application/json");
+		return;
+	}
+
+	char databuf[SQL_BUFFER_SIZE];
+
+	if (SQL_SUCCESS != SqlStmt_BindColumn(stmt, 0, SQLDT_STRING, &databuf, sizeof(databuf), NULL, NULL)
+		|| SQL_SUCCESS != SqlStmt_NextRow(stmt)
+	) {
+		SqlStmt_ShowDebug(stmt);
+		SqlStmt_Free(stmt);
+		sl.unlock();
+		res.status = HTTP_BAD_REQUEST;
+		res.set_content("Error", "text/plain");
+		return;
+	}
+
+	SqlStmt_Free(stmt);
+	sl.unlock();
+
+	databuf[sizeof(databuf) - 1] = 0;
+	res.set_content(databuf, "application/json");
+}

src/web/userconfig_controller.hpp

@@ -0,0 +1,12 @@
+// Copyright (c) rAthena Dev Teams - Licensed under GNU GPL
+// For more information, see LICENCE in the main folder
+
+#ifndef USERCONFIG_CONTROLLER_HPP
+#define USERCONFIG_CONTROLLER_HPP
+
+#include "http.hpp"
+
+HANDLER_FUNC(userconfig_save);
+HANDLER_FUNC(userconfig_load);
+
+#endif

src/web/web-server.vcxproj

@@ -0,0 +1,204 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <Keyword>Win32Proj</Keyword>
+    <ProjectGuid>{5809f27d-65b5-46a3-a340-c8685a8c09f4}</ProjectGuid>
+    <RootNamespace>webserver</RootNamespace>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
+    <CharacterSet>MultiByte</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
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+    <CharacterSet>MultiByte</CharacterSet>
+  </PropertyGroup>
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+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
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+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
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+    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>MultiByte</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
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+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
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+  <PropertyGroup Label="UserMacros" />
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+    <LinkIncremental>true</LinkIncremental>
+    <OutDir>$(SolutionDir)</OutDir>
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+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
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+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
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+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
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+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
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+      </PrecompiledHeader>
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+    <Link>
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+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+      <AdditionalIncludeDirectories>$(SolutionDir)3rdparty\httplib\;$(SolutionDir)\3rdparty\rapidyaml\src;$(SolutionDir)\3rdparty\rapidyaml\ext\c4core\src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
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+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <AdditionalDependencies>ws2_32.lib;$(SolutionDir).vs\build\httplib.lib;$(SolutionDir).vs\build\common.lib;$(SolutionDir).vs\build\libconfig.lib;$(SolutionDir)3rdparty\zlib\lib\$(Platform)\zlib.lib;$(SolutionDir)3rdparty\pcre\lib\$(Platform)\pcre8.lib;$(SolutionDir)3rdparty\mysql\lib\$(Platform)\libmysql.lib;$(SolutionDir).vs\build\ryml.lib;%(AdditionalDependencies)</AdditionalDependencies>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <Optimization>MaxSpeed</Optimization>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <PreprocessorDefinitions>$(DefineConstants);WIN32;FD_SETSIZE=4096;PCRE_SUPPORT;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_DEPRECATE;_WINSOCK_DEPRECATED_NO_WARNINGS;LIBCONFIG_STATIC;YY_USE_CONST;NDEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+      <AdditionalIncludeDirectories>$(SolutionDir)3rdparty\httplib\;$(SolutionDir)\3rdparty\rapidyaml\src;$(SolutionDir)\3rdparty\rapidyaml\ext\c4core\src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <DisableSpecificWarnings>4018</DisableSpecificWarnings>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <AdditionalDependencies>ws2_32.lib;$(SolutionDir).vs\build\httplib.lib;$(SolutionDir).vs\build\common.lib;$(SolutionDir).vs\build\libconfig.lib;$(SolutionDir)3rdparty\zlib\lib\$(Platform)\zlib.lib;$(SolutionDir)3rdparty\pcre\lib\$(Platform)\pcre8.lib;$(SolutionDir)3rdparty\mysql\lib\$(Platform)\libmysql.lib;$(SolutionDir).vs\build\ryml.lib;%(AdditionalDependencies)</AdditionalDependencies>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="auth.cpp" />
+    <ClCompile Include="charconfig_controller.cpp" />
+    <ClCompile Include="emblem_controller.cpp" />
+    <ClCompile Include="merchantstore_controller.cpp" />
+    <ClCompile Include="sqllock.cpp" />
+    <ClCompile Include="userconfig_controller.cpp" />
+    <ClCompile Include="webutils.cpp" />
+    <ClCompile Include="web.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="auth.hpp" />
+    <ClInclude Include="charconfig_controller.hpp" />
+    <ClInclude Include="emblem_controller.hpp" />
+    <ClInclude Include="http.hpp" />
+    <ClInclude Include="merchantstore_controller.hpp" />
+    <ClInclude Include="sqllock.hpp" />
+    <ClInclude Include="userconfig_controller.hpp" />
+    <ClInclude Include="webutils.hpp" />
+    <ClInclude Include="web.hpp" />
+    <ClInclude Include="webcnslif.hpp" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+  <Target Name="AfterClean">
+    <Delete Files="$(SolutionDir)libmysql.dll" ContinueOnError="true" />
+    <Delete Files="$(SolutionDir)serv.bat" ContinueOnError="true" />
+    <Delete Files="$(SolutionDir)webserv.bat" ContinueOnError="true" />
+  </Target>
+  <Target Name="AfterBuild">
+    <Copy SourceFiles="$(SolutionDir)3rdparty\mysql\lib\$(Platform)\libmysql.dll" DestinationFolder="$(SolutionDir)" ContinueOnError="true" Condition="!Exists('$(SolutionDir)libmysql.dll')" />
+    <Copy SourceFiles="$(SolutionDir)tools\serv.bat" DestinationFolder="$(SolutionDir)" ContinueOnError="true" Condition="!Exists('$(SolutionDir)serv.bat')" />
+    <Copy SourceFiles="$(SolutionDir)tools\webserv.bat" DestinationFolder="$(SolutionDir)" ContinueOnError="true" Condition="!Exists('$(SolutionDir)webserv.bat')" />
+    <Copy SourceFiles="$(SolutionDir)conf\import-tmpl\inter_conf.txt" DestinationFolder="$(SolutionDir)conf\import\" ContinueOnError="true" Condition="!Exists('$(SolutionDir)conf\import\inter_conf.txt')" />
+    <Copy SourceFiles="$(SolutionDir)conf\import-tmpl\packet_conf.txt" DestinationFolder="$(SolutionDir)conf\import\" ContinueOnError="true" Condition="!Exists('$(SolutionDir)conf\import\packet_conf.txt')" />
+    <Copy SourceFiles="$(SolutionDir)conf\import-tmpl\web_conf.txt" DestinationFolder="$(SolutionDir)conf\import\" ContinueOnError="true" Condition="!Exists('$(SolutionDir)conf\import\web_conf.txt')" />
+  </Target>
+</Project>

src/web/web-server.vcxproj.filters

@@ -0,0 +1,75 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd</Extensions>
+    </Filter>
+    <Filter Include="Resource Files">
+      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="auth.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="charconfig_controller.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="emblem_controller.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="sqllock.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="userconfig_controller.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="web.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="merchantstore_controller.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="webutils.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="auth.hpp">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="charconfig_controller.hpp">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="emblem_controller.hpp">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="http.hpp">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="sqllock.hpp">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="userconfig_controller.hpp">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="web.hpp">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="webcnslif.hpp">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="merchantstore_controller.hpp">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="webutils.hpp">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+</Project>

src/web/web.cpp

@@ -0,0 +1,462 @@
+// Copyright (c) rAthena Dev Teams - Licensed under GNU GPL
+// For more information, see LICENCE in the main folder
+
+#include "web.hpp"
+
+#include <chrono>
+#include <stdlib.h>
+#include <string.h>
+#include <string>
+#include <thread>
+
+#include "../common/cli.hpp"
+#include "../common/core.hpp"
+#include "../common/malloc.hpp"
+#include "../common/md5calc.hpp"
+#include "../common/mmo.hpp"
+#include "../common/msg_conf.hpp"
+#include "../common/random.hpp"
+#include "../common/showmsg.hpp"
+#include "../common/socket.hpp" //ip2str
+#include "../common/sql.hpp"
+#include "../common/strlib.hpp"
+#include "../common/timer.hpp"
+#include "../common/utilities.hpp"
+#include "../common/utils.hpp"
+#include "../config/core.hpp"
+
+#include "charconfig_controller.hpp"
+#include "emblem_controller.hpp"
+#include "http.hpp"
+#include "userconfig_controller.hpp"
+#include "merchantstore_controller.hpp"
+
+
+using namespace rathena;
+
+#define WEB_MAX_MSG 30				/// Max number predefined in msg_conf
+static char* msg_table[WEB_MAX_MSG];	/// Web Server messages_conf
+
+struct Web_Config web_config {};
+struct Inter_Config inter_config {};
+std::shared_ptr<httplib::Server> http_server;
+
+int login_server_port = 3306;
+std::string login_server_ip = "127.0.0.1";
+std::string login_server_id = "ragnarok";
+std::string login_server_pw = "";
+std::string login_server_db = "ragnarok";
+
+int  char_server_port = 3306;
+std::string char_server_ip = "127.0.0.1";
+std::string char_server_id = "ragnarok";
+std::string char_server_pw = "";
+std::string char_server_db = "ragnarok";
+
+int web_server_port = 3306;
+std::string web_server_ip = "127.0.0.1";
+std::string web_server_id = "ragnarok";
+std::string web_server_pw = "";
+std::string web_server_db = "ragnarok";
+
+std::string default_codepage = "";
+
+Sql * login_handle = NULL;
+Sql * char_handle = NULL;
+Sql * web_handle = NULL;
+
+char login_table[32] = "login";
+char guild_emblems_table[32] = "guild_emblems";
+char user_configs_table[32] = "user_configs";
+char char_configs_table[32] = "char_configs";
+char merchant_configs_table[32] = "merchant_configs";
+char guild_db_table[32] = "guild";
+char char_db_table[32] = "char";
+
+int parse_console(const char * buf) {
+	return 1;
+}
+
+std::thread svr_thr;
+
+/// Msg_conf tayloring
+int web_msg_config_read(char *cfgName){
+	return _msg_config_read(cfgName,WEB_MAX_MSG,msg_table);
+}
+const char* web_msg_txt(int msg_number){
+	return _msg_txt(msg_number,WEB_MAX_MSG,msg_table);
+}
+void web_do_final_msg(void){
+	_do_final_msg(WEB_MAX_MSG,msg_table);
+}
+/// Set and read Configurations
+
+/**
+ * Reading main configuration file.
+ * @param cfgName: Name of the configuration (could be fullpath)
+ * @param normal: Config read normally when server started
+ * @return True:success, Fals:failure (file not found|readable)
+ */
+bool web_config_read(const char* cfgName, bool normal) {
+	char line[1024], w1[32], w2[1024];
+	FILE* fp = fopen(cfgName, "r");
+	if (fp == NULL) {
+		ShowError("Configuration file (%s) not found.\n", cfgName);
+		return false;
+	}
+	while (fgets(line, sizeof(line), fp)) {
+		if (line[0] == '/' && line[1] == '/')
+			continue;
+		
+		if (sscanf(line, "%31[^:]: %1023[^\r\n]", w1, w2) < 2)
+			continue;
+		
+		// Config that loaded only when server started, not by reloading config file
+		if (normal) {
+			if (!strcmpi(w1, "bind_ip")) {
+				web_config.web_ip = w2;
+			} else if (!strcmpi(w1, "web_port"))
+				web_config.web_port = (uint16)atoi(w2);
+		}
+
+		if (!strcmpi(w1, "timestamp_format"))
+			safestrncpy(timestamp_format, w2, 20);
+		else if (!strcmpi(w1, "db_path"))
+			safestrncpy(db_path, w2, ARRAYLENGTH(db_path));
+		else if (!strcmpi(w1, "stdout_with_ansisequence"))
+			stdout_with_ansisequence = config_switch(w2);
+		else if (!strcmpi(w1, "console_silent")) {
+			msg_silent = atoi(w2);
+			if (msg_silent) /* only bother if we have actually this enabled */
+				ShowInfo("Console Silent Setting: %d\n", msg_silent);
+		}
+		else if (!strcmpi(w1, "console_msg_log"))
+			console_msg_log = atoi(w2);
+		else if (!strcmpi(w1, "console_log_filepath"))
+			safestrncpy(console_log_filepath, w2, sizeof(console_log_filepath));
+		else if (!strcmpi(w1, "print_req_res"))
+			web_config.print_req_res = config_switch(w2);
+		else if (!strcmpi(w1, "import"))
+			web_config_read(w2, normal);
+		else if (!strcmpi(w1, "allow_gifs"))
+			web_config.allow_gifs = config_switch(w2) == 1;
+	}
+	fclose(fp);
+	ShowInfo("Finished reading %s.\n", cfgName);
+	return true;
+}
+
+/*==========================================
+ * read config file
+ *------------------------------------------*/
+int inter_config_read(const char* cfgName)
+{
+	char line[1024];
+	FILE* fp;
+
+	fp = fopen(cfgName, "r");
+	if(fp == NULL) {
+		ShowError("File not found: %s\n", cfgName);
+		return 1;
+	}
+
+	while(fgets(line, sizeof(line), fp)) {
+		char w1[24], w2[1024];
+
+		if (line[0] == '/' && line[1] == '/')
+			continue;
+
+		if (sscanf(line, "%23[^:]: %1023[^\r\n]", w1, w2) != 2)
+			continue;
+
+		if (!strcmpi(w1, "emblem_transparency_limit"))
+			inter_config.emblem_woe_change = atoi(w2);
+		else if (!strcmpi(w1, "emblem_transparency_limit"))
+			inter_config.emblem_woe_change = config_switch(w2) == 1;
+		else if(!strcmpi(w1,"login_server_ip"))
+			login_server_ip = w2;
+		else if(!strcmpi(w1,"login_server_port"))
+			login_server_port = atoi(w2);
+		else if(!strcmpi(w1,"login_server_id"))
+			login_server_id = w2;
+		else if(!strcmpi(w1,"login_server_pw"))
+			login_server_pw = w2;
+		else if(!strcmpi(w1,"login_server_db"))
+			login_server_db = w2;
+		else if(!strcmpi(w1,"char_server_ip"))
+			char_server_ip = w2;
+		else if(!strcmpi(w1,"char_server_port"))
+			char_server_port = atoi(w2);
+		else if(!strcmpi(w1,"char_server_id"))
+			char_server_id = w2;
+		else if(!strcmpi(w1,"char_server_pw"))
+			char_server_pw = w2;
+		else if(!strcmpi(w1,"char_server_db"))
+			char_server_db = w2;
+		else if(!strcmpi(w1,"web_server_ip"))
+			web_server_ip = w2;
+		else if(!strcmpi(w1,"web_server_port"))
+			web_server_port = atoi(w2);
+		else if(!strcmpi(w1,"web_server_id"))
+			web_server_id = w2;
+		else if(!strcmpi(w1,"web_server_pw"))
+			web_server_pw = w2;
+		else if(!strcmpi(w1,"web_server_db"))
+			web_server_db = w2;
+		else if(!strcmpi(w1,"default_codepage"))
+			default_codepage = w2;
+		else if (!strcmpi(w1, "user_configs"))
+			safestrncpy(user_configs_table, w2, sizeof(user_configs_table));
+		else if (!strcmpi(w1, "char_configs"))
+			safestrncpy(char_configs_table, w2, sizeof(char_configs_table));
+		else if (!strcmpi(w1, "merchant_configs"))
+			safestrncpy(merchant_configs_table, w2, sizeof(merchant_configs_table));
+		else if (!strcmpi(w1, "guild_emblems"))
+			safestrncpy(guild_emblems_table, w2, sizeof(guild_emblems_table));
+		else if (!strcmpi(w1, "login_server_account_db"))
+			safestrncpy(login_table, w2, sizeof(login_table));
+		else if (!strcmpi(w1, "guild_db"))
+			safestrncpy(guild_db_table, w2, sizeof(guild_db_table));
+		else if (!strcmpi(w1, "char_db"))
+			safestrncpy(char_db_table, w2, sizeof(char_db_table));
+		else if(!strcmpi(w1,"import"))
+			inter_config_read(w2);
+	}
+	fclose(fp);
+
+	ShowInfo ("Done reading %s.\n", cfgName);
+
+	return 0;
+}
+
+
+void web_set_defaults() {
+	web_config.web_ip = "0.0.0.0";
+	web_config.web_port = 3000;
+	safestrncpy(web_config.webconf_name, "conf/web_athena.conf", sizeof(web_config.webconf_name));
+	safestrncpy(web_config.msgconf_name, "conf/msg_conf/web_msg.conf", sizeof(web_config.msgconf_name));
+	web_config.print_req_res = false;
+
+	inter_config.emblem_transparency_limit = 100;
+	inter_config.emblem_woe_change = true;
+}
+
+
+/// Constructor destructor and signal handlers
+
+int web_sql_init(void) {
+	// login db connection
+	login_handle = Sql_Malloc();
+	ShowInfo("Connecting to the Login DB server.....\n");
+
+	if (SQL_ERROR == Sql_Connect(login_handle, login_server_id.c_str(), login_server_pw.c_str(), login_server_ip.c_str(), login_server_port, login_server_db.c_str())) {
+		ShowError("Couldn't connect with uname='%s',passwd='%s',host='%s',port='%d',database='%s'\n",
+			login_server_id.c_str(), login_server_pw.c_str(), login_server_ip.c_str(), login_server_port, login_server_db.c_str());
+		Sql_ShowDebug(login_handle);
+		Sql_Free(login_handle);
+		exit(EXIT_FAILURE);
+	}
+	ShowStatus("Connect success! (Login Server Connection)\n");
+
+	if (!default_codepage.empty()) {
+		if (SQL_ERROR == Sql_SetEncoding(login_handle, default_codepage.c_str()))
+			Sql_ShowDebug(login_handle);
+	}
+
+	char_handle = Sql_Malloc();
+	ShowInfo("Connecting to the Char DB server.....\n");
+
+	if (SQL_ERROR == Sql_Connect(char_handle, char_server_id.c_str(), char_server_pw.c_str(), char_server_ip.c_str(), char_server_port, char_server_db.c_str())) {
+		ShowError("Couldn't connect with uname='%s',passwd='%s',host='%s',port='%d',database='%s'\n",
+			char_server_id.c_str(), char_server_pw.c_str(), char_server_ip.c_str(), char_server_port, char_server_db.c_str());
+		Sql_ShowDebug(char_handle);
+		Sql_Free(char_handle);
+		exit(EXIT_FAILURE);
+	}
+	ShowStatus("Connect success! (Char Server Connection)\n");
+
+	if (!default_codepage.empty()) {
+		if (SQL_ERROR == Sql_SetEncoding(char_handle, default_codepage.c_str()))
+			Sql_ShowDebug(char_handle);
+	}
+
+	web_handle = Sql_Malloc();
+	ShowInfo("Connecting to the Web DB server.....\n");
+
+	if (SQL_ERROR == Sql_Connect(web_handle, web_server_id.c_str(), web_server_pw.c_str(), web_server_ip.c_str(), web_server_port, web_server_db.c_str())) {
+		ShowError("Couldn't connect with uname='%s',passwd='%s',host='%s',port='%d',database='%s'\n",
+			web_server_id.c_str(), web_server_pw.c_str(), web_server_ip.c_str(), web_server_port, web_server_db.c_str());
+		Sql_ShowDebug(web_handle);
+		Sql_Free(web_handle);
+		exit(EXIT_FAILURE);
+	}
+	ShowStatus("Connect success! (Web Server Connection)\n");
+
+	if (!default_codepage.empty()) {
+		if (SQL_ERROR == Sql_SetEncoding(web_handle, default_codepage.c_str()))
+			Sql_ShowDebug(web_handle);
+	}
+
+
+	return 0;
+}
+
+int web_sql_close(void)
+{
+	ShowStatus("Close Login DB Connection....\n");
+	Sql_Free(login_handle);
+	login_handle = NULL;
+	ShowStatus("Close Char DB Connection....\n");
+	Sql_Free(char_handle);
+	char_handle = NULL;
+	ShowStatus("Close Web DB Connection....\n");
+	Sql_Free(web_handle);
+	web_handle = NULL;
+
+	return 0;
+}
+
+/**
+ * Login-serv destructor
+ *  dealloc..., function called at exit of the login-serv
+ */
+void do_final(void) {
+	ShowStatus("Terminating...\n");
+#ifdef WEB_SERVER_ENABLE
+	http_server->stop();
+	svr_thr.join();
+	web_sql_close();
+#endif
+	do_final_msg();
+	ShowStatus("Finished.\n");
+}
+
+/**
+ * Signal handler
+ *  This function attempts to properly close the server when an interrupt signal is received.
+ *  current signal catch : SIGTERM, SIGINT
+ */
+void do_shutdown(void) {
+	if( runflag != WEBSERVER_ST_SHUTDOWN ) {
+		runflag = WEBSERVER_ST_SHUTDOWN;
+		ShowStatus("Shutting down...\n");
+		runflag = CORE_ST_STOP;
+	}
+}
+
+/**
+ * Signal handler
+ *  Function called when the server has received a crash signal.
+ *  current signal catch : SIGSEGV, SIGFPE
+ */
+void do_abort(void) {
+#ifdef WEB_SERVER_ENABLE
+	http_server->stop();
+	svr_thr.join();
+#endif
+}
+
+/*======================================================
+ * Map-Server help options screen
+ *------------------------------------------------------*/
+void display_helpscreen(bool do_exit)
+{
+	ShowInfo("Usage: %s\n", SERVER_NAME);
+	if( do_exit )
+		exit(EXIT_SUCCESS);
+}
+
+
+// Is this still used ??
+void set_server_type(void) {
+	SERVER_TYPE = ATHENA_SERVER_WEB;
+}
+
+
+// called just before sending repsonse
+void logger(const Request & req, const Response & res) {
+	// make this a config
+	if (web_config.print_req_res) {
+		ShowDebug("Incoming Headers are:\n");
+		for (const auto & header : req.headers) {
+			ShowDebug("\t%s: %s\n", header.first.c_str(), header.second.c_str());
+		}
+		ShowDebug("Incoming Pages are:\n");
+		for (const auto & file : req.files) {
+			ShowDebug("\t%s: %s\n", file.first.c_str(), file.second.content.c_str());
+		}
+		ShowDebug("Outgoing Headers are:\n");
+		for (const auto & header : res.headers) {
+			ShowDebug("\t%s: %s\n", header.first.c_str(), header.second.c_str());
+		}
+		ShowDebug("Response status is: %d\n", res.status);
+		// since the body may be binary, might not print entire body (has null character).
+		ShowDebug("Body is:\n%s\n", res.body.c_str());
+	}
+	ShowInfo("%s [%s %s] %d\n", req.remote_addr.c_str(), req.method.c_str(), req.path.c_str(), res.status);
+}
+
+
+int do_init(int argc, char** argv) {
+	runflag = WEBSERVER_ST_STARTING;
+#ifndef WEB_SERVER_ENABLE
+	ShowStatus("The web-server is " CL_GREEN "idling" CL_RESET " (PACKETVER too old to use).\n\n");
+	return 0;
+#else
+	INTER_CONF_NAME="conf/inter_athena.conf";
+
+	safestrncpy(console_log_filepath, "./log/web-msg_log.log", sizeof(console_log_filepath));
+
+	// read web-server configuration
+	web_set_defaults();
+	web_config_read(web_config.webconf_name, true);
+	msg_config_read(web_config.msgconf_name);
+
+	inter_config_read(INTER_CONF_NAME);
+	// end config
+
+	web_sql_init();
+
+	ShowStatus("Starting server...\n");
+
+	http_server = std::make_shared<httplib::Server>();
+	// set up routes
+	http_server->Post("/emblem/download", emblem_download);
+	http_server->Post("/emblem/upload", emblem_upload);
+	http_server->Post("/userconfig/load", userconfig_load);
+	http_server->Post("/userconfig/save", userconfig_save);
+	http_server->Post("/charconfig/load", charconfig_load);
+	http_server->Post("/charconfig/save", charconfig_save);
+	http_server->Post("/MerchantStore/load", merchantstore_load);
+	http_server->Post("/MerchantStore/save", merchantstore_save);
+
+	// set up logger
+	http_server->set_logger(logger);
+	shutdown_callback = do_shutdown;
+
+	runflag = WEBSERVER_ST_STARTING;
+
+	svr_thr = std::thread([] {
+		http_server->listen(web_config.web_ip.c_str(), web_config.web_port);
+	});
+
+	for (int i = 0; i < 10; i++) {
+		if (runflag == CORE_ST_STOP)
+			return 0;
+		if (http_server->is_running())
+			break;
+		ShowDebug("Web server not running, sleeping 1 second.\n");
+		std::this_thread::sleep_for(std::chrono::seconds(1));
+	}
+
+	if (!http_server->is_running()) {
+		ShowError("Web server hasn't started, stopping.\n");
+		runflag = CORE_ST_STOP;
+		return 0;
+	}
+
+	runflag = WEBSERVER_ST_RUNNING;
+	ShowStatus("The web-server is " CL_GREEN "ready" CL_RESET " (Server is listening on the port %u).\n\n", web_config.web_port);
+	return 0;
+#endif
+}

src/web/web.hpp

@@ -0,0 +1,66 @@
+// Copyright (c) rAthena Dev Teams - Licensed under GNU GPL
+// For more information, see LICENCE in the main folder
+
+#ifndef WEB_HPP
+#define WEB_HPP
+
+#include <string>
+
+#include "../common/cbasetypes.hpp"
+#include "../common/core.hpp" // CORE_ST_LAST
+#include "../common/mmo.hpp" // NAME_LENGTH,SEX_*
+#include "../common/timer.hpp"
+#include "../config/core.hpp"
+
+
+#ifndef SQL_BUFFER_SIZE
+	#define SQL_BUFFER_SIZE 65535
+#endif
+
+enum E_WEBSERVER_ST {
+	WEBSERVER_ST_RUNNING = CORE_ST_LAST,
+	WEBSERVER_ST_STARTING,
+	WEBSERVER_ST_SHUTDOWN,
+	WEBSERVER_ST_LAST
+};
+
+struct Web_Config {
+	std::string web_ip;								// the address to bind to
+	uint16 web_port;								// the port to bind to
+	bool print_req_res;								// Whether or not to print requests/responses
+
+	char webconf_name[256];						/// name of main config file
+	char msgconf_name[256];							/// name of msg_conf config file
+	bool allow_gifs;
+};
+
+struct Inter_Config {
+	int emblem_transparency_limit;					// Emblem transparency limit
+	bool emblem_woe_change;							// allow emblem change during woe
+};
+
+enum e_http_status{
+	HTTP_BAD_REQUEST = 400,
+	HTTP_NOT_FOUND = 404,
+};
+
+extern struct Web_Config web_config;
+extern struct Inter_Config inter_config;
+
+extern char login_table[32];
+extern char guild_emblems_table[32];
+extern char user_configs_table[32];
+extern char char_configs_table[32];
+extern char guild_db_table[32];
+extern char char_db_table[32];
+extern char merchant_configs_table[32];
+
+#define msg_config_read(cfgName) web_msg_config_read(cfgName)
+#define msg_txt(msg_number) web_msg_txt(msg_number)
+#define do_final_msg() web_do_final_msg()
+int web_msg_config_read(char *cfgName);
+const char* web_msg_txt(int msg_number);
+void web_do_final_msg(void);
+bool web_config_read(const char* cfgName, bool normal);
+
+#endif /* WEB_HPP */

src/web/webcnslif.hpp

@@ -0,0 +1,3 @@
+// Copyright (c) rAthena Dev Teams - Licensed under GNU GPL
+// For more information, see LICENCE in the main folder
+

src/web/webutils.cpp

@@ -0,0 +1,41 @@
+// Copyright (c) rAthena Dev Teams - Licensed under GNU GPL
+// For more information, see LICENCE in the main folder
+
+
+#include "webutils.hpp"
+#include <string>
+#include <algorithm>
+#include <iostream>
+
+/**
+ * Appends to_append to the JSON object obj
+ * modifies the obj parameter
+ * Returns true on succes, false on failure
+ * 
+ * Note: very hacky, if we ever add a json parser/emitter, replace this
+ * I just didn't want to add one just for this functionality
+ */
+bool addToJsonObject(std::string& obj, const std::string& to_append) {
+	bool need_comma = false;
+	auto last_close_brace = std::find(obj.rbegin(), obj.rend(), '}');
+	if (last_close_brace == obj.rend()) {
+		return false;
+	}
+	for (auto it = last_close_brace + 1; it != obj.rend(); ++it) {
+		if (*it == '}' || *it == '"' || *it == ':') {
+			// there was a value, we need to add a comma
+			need_comma = true;
+			break;
+		} else if (*it == '{') {
+			// there was no previous value, don't add comma
+			need_comma = false;
+			break;
+		}
+	}
+	obj.erase(--(last_close_brace.base()));
+	if (need_comma) {
+		obj += ",";
+	}
+	obj += to_append + "}";
+	return true;
+}

src/web/webutils.hpp

@@ -0,0 +1,11 @@
+// Copyright (c) rAthena Dev Teams - Licensed under GNU GPL
+// For more information, see LICENCE in the main folder
+
+
+#ifndef WEB_UTILS_HPP
+#define WEB_UTILS_HPP
+#include <string>
+
+bool addToJsonObject(std::string& obj, const std::string& to_append);
+
+#endif

tools/webserv.bat

@@ -0,0 +1,2 @@
+@ECHO OFF
+CALL serv.bat web-server.exe Web-Server %*