#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(0xC0 | ((code >> 6) & 0x1F)); buff[1] = static_cast(0x80 | (code & 0x3F)); return 2; } else if (code < 0xD800) { buff[0] = static_cast(0xE0 | ((code >> 12) & 0xF)); buff[1] = static_cast(0x80 | ((code >> 6) & 0x3F)); buff[2] = static_cast(0x80 | (code & 0x3F)); return 3; } else if (code < 0xE000) { // D800 - DFFF is invalid... return 0; } else if (code < 0x10000) { buff[0] = static_cast(0xE0 | ((code >> 12) & 0xF)); buff[1] = static_cast(0x80 | ((code >> 6) & 0x3F)); buff[2] = static_cast(0x80 | (code & 0x3F)); return 3; } else if (code < 0x110000) { buff[0] = static_cast(0xF0 | ((code >> 18) & 0x7)); buff[1] = static_cast(0x80 | ((code >> 12) & 0x3F)); buff[2] = static_cast(0x80 | ((code >> 6) & 0x3F)); buff[3] = static_cast(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(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(c)) || c == '-' || c == '_' || c == '.' || c == '!' || c == '~' || c == '*' || c == '\'' || c == '(' || c == ')') { escaped << c; } else { escaped << std::uppercase; escaped << '%' << std::setw(2) << static_cast(static_cast(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(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(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(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)); fs.read(&out[0], static_cast(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 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 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 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(ptr), static_cast(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(ptr), static_cast(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(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(sec); tv.tv_usec = static_cast(usec); return handle_EINTR([&]() { return select(static_cast(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(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(sec); tv.tv_usec = static_cast(usec); return handle_EINTR([&]() { return select(static_cast(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(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(&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(sec); tv.tv_usec = static_cast(usec); auto ret = handle_EINTR([&]() { return select(static_cast(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(&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 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(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 bool process_server_socket_core(const std::atomic &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 bool process_server_socket(const std::atomic &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 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 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(&addr); hints.ai_addrlen = static_cast( 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(&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(&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(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(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(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(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(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(read_timeout_sec); tv.tv_usec = static_cast(read_timeout_usec); setsockopt(sock2, SOL_SOCKET, SO_RCVTIMEO, (char *)&tv, sizeof(tv)); #endif } { #ifdef _WIN32 auto timeout = static_cast(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(write_timeout_sec); tv.tv_usec = static_cast(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(&addr)->sin_port); } else if (addr.ss_family == AF_INET6) { port = ntohs(reinterpret_cast(&addr)->sin6_port); } else { return false; } std::array ipstr{}; if (getnameinfo(reinterpret_cast(&addr), addr_len, ipstr.data(), static_cast(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(&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(*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 &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::max)(); strm_.avail_in = static_cast( (std::min)(data_length, max_avail_in)); strm_.next_in = const_cast(reinterpret_cast(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 buff{}; do { strm_.avail_out = static_cast(buff.size()); strm_.next_out = reinterpret_cast(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::max)(); strm_.avail_in = static_cast( (std::min)(data_length, max_avail_in)); strm_.next_in = const_cast(reinterpret_cast(data)); data_length -= strm_.avail_in; data += strm_.avail_in; std::array buff{}; while (strm_.avail_in > 0) { strm_.avail_out = static_cast(buff.size()); strm_.next_out = reinterpret_cast(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 buff{}; auto operation = last ? BROTLI_OPERATION_FINISH : BROTLI_OPERATION_PROCESS; auto available_in = data_length; auto next_in = reinterpret_cast(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(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 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(&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(id)); if (it != rng.second) { return it->second.c_str(); } return def; } template 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(len - r); auto n = strm.read(buf, (std::min)(read_len, CPPHTTPLIB_RECV_BUFSIZ)); if (n <= 0) { return false; } if (!out(buf, static_cast(n), r, len)) { return false; } r += static_cast(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(len - r); auto n = strm.read(buf, (std::min)(read_len, CPPHTTPLIB_RECV_BUFSIZ)); if (n <= 0) { return; } r += static_cast(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(n), r, 0)) { return false; } r += static_cast(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 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; if (encoding == "gzip" || encoding == "deflate") { #ifdef CPPHTTPLIB_ZLIB_SUPPORT decompressor = detail::make_unique(); #else status = 415; return false; #endif } else if (encoding.find("br") != std::string::npos) { #ifdef CPPHTTPLIB_BROTLI_SUPPORT decompressor = detail::make_unique(); #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 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(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(length); } return true; } template 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 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 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 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 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 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 ¶ms) { 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 ¶ms) { std::set 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(m.position(1)); auto len = static_cast(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(std::stoll(cm.str(1))); } ssize_t last = -1; if (!cm.str(2).empty()) { last = static_cast(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(::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 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(content_length); if (r.first == -1) { r.first = (std::max)(static_cast(0), slen - r.second); r.second = slen - 1; } if (r.second == -1) { r.second = slen - 1; } return std::make_pair(r.first, static_cast(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 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 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 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(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_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(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 make_digest_authentication_header( const Request &req, const std::map &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 &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(m.position(1)), static_cast(m.length(1))); auto val = m.length(2) > 0 ? s.substr(static_cast(m.position(2)), static_cast(m.length(2))) : s.substr(static_cast(m.position(3)), static_cast(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(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 addrs; hosted_at(hostname, addrs); if (addrs.empty()) { return std::string(); } return addrs[0]; } void hosted_at(const std::string &hostname, std::vector &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(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 ¶ms) { 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 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 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 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(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(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(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(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(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((std::numeric_limits::max)())); #else size = (std::min)(size, static_cast((std::numeric_limits::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(size); } else { memcpy(ptr, read_buff_.data() + read_buff_off_, remaining_size); read_buff_off_ += remaining_size; return static_cast(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(size)) { memcpy(ptr, read_buff_.data(), static_cast(n)); return n; } else { memcpy(ptr, read_buff_.data(), size); read_buff_off_ = size; read_buff_content_size_ = static_cast(n); return static_cast(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((std::numeric_limits::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(len_read); return static_cast(len_read); } ssize_t BufferStream::write(const char *ptr, size_t size) { buffer.append(ptr, size); return static_cast(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 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 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 compressor; if (type == detail::EncodingType::Gzip) { #ifdef CPPHTTPLIB_ZLIB_SUPPORT compressor = detail::make_unique(); #endif } else if (type == detail::EncodingType::Brotli) { #ifdef CPPHTTPLIB_BROTLI_SUPPORT compressor = detail::make_unique(); #endif } else { compressor = detail::make_unique(); } 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)(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(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(&addr), &addr_len) == -1) { return -1; } if (addr.ss_family == AF_INET) { return ntohs(reinterpret_cast(&addr)->sin_port); } else if (addr.ss_family == AF_INET6) { return ntohs(reinterpret_cast(&addr)->sin6_port); } else { return -1; } } else { return port; } } bool Server::listen_internal() { auto ret = true; is_running_ = true; { std::unique_ptr 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(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(read_timeout_sec_); tv.tv_usec = static_cast(read_timeout_usec_); setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (char *)&tv, sizeof(tv)); #endif } { #ifdef _WIN32 auto timeout = static_cast(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(write_timeout_sec_); tv.tv_usec = static_cast(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 compressor; std::string content_encoding; if (type == detail::EncodingType::Gzip) { #ifdef CPPHTTPLIB_ZLIB_SUPPORT compressor = detail::make_unique(); content_encoding = "gzip"; #endif } else if (type == detail::EncodingType::Brotli) { #ifdef CPPHTTPLIB_BROTLI_SUPPORT compressor = detail::make_unique(); 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 &setup_request) { std::array 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 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 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 request_mutex_guard(request_mutex_); { std::lock_guard 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(*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 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(); 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 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 compressor; #ifdef CPPHTTPLIB_ZLIB_SUPPORT if (compress_) { compressor = detail::make_unique(); } else #endif { compressor = detail::make_unique(); } 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 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(); 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( [&](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( [&](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::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 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 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 ¶ms, 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 ¶ms, 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 ¶ms, 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 ¶ms) { 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 ¶ms) { 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 ¶ms) { return Put(path, Headers(), params); } Result ClientImpl::Put(const std::string &path, const Headers &headers, const Params ¶ms) { 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 guard(socket_mutex_); return socket_.is_open(); } socket_t ClientImpl::socket() const { return socket_.sock; } void ClientImpl::stop() { std::lock_guard 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 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 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 guard(ctx_mutex); ssl = SSL_new(ctx); } if (ssl) { set_nonblocking(sock, true); auto bio = BIO_new_socket(static_cast(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 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 guard(ctx_mutex); SSL_free(ssl); } template 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 bool process_server_socket_ssl( const std::atomic &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 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> openSSL_locks_; class SSLThreadLocks { public: SSLThreadLocks() { openSSL_locks_ = std::make_shared>(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(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(size)); } else if (is_readable()) { auto ret = SSL_read(ssl_, ptr, static_cast(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(size)); } else if (is_readable()) { std::this_thread::sleep_for(std::chrono::milliseconds(1)); ret = SSL_read(ssl_, ptr, static_cast(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( std::min(size, (std::numeric_limits::max)())); auto ret = SSL_write(ssl_, ptr, static_cast(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(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 &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 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 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 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( 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(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 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(host, port, client_cert_path, client_key_path); is_ssl_ = is_ssl; #endif } else { cli_ = detail::make_unique(host, port, client_cert_path, client_key_path); } } else { cli_ = detail::make_unique(scheme_host_port, 80, client_cert_path, client_key_path); } } Client::Client(const std::string &host, int port) : cli_(detail::make_unique(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(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 ¶ms, const Headers &headers, Progress progress) { return cli_->Get(path, params, headers, progress); } Result Client::Get(const std::string &path, const Params ¶ms, 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 ¶ms, 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 ¶ms) { return cli_->Post(path, params); } Result Client::Post(const std::string &path, const Headers &headers, const Params ¶ms) { 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 ¶ms) { return cli_->Put(path, params); } Result Client::Put(const std::string &path, const Headers &headers, const Params ¶ms) { 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 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(*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(*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(*cli_).ssl_context(); } return nullptr; } #endif } // namespace httplib