From 5f30f95e94d9d8ba4eb3d09da110b8e2f9187eb2 Mon Sep 17 00:00:00 2001 From: fearlessTobi Date: Sun, 16 Sep 2018 20:05:19 +0200 Subject: Add submodules --- externals/httplib/README.md | 15 + externals/httplib/httplib.h | 2344 +++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 2359 insertions(+) create mode 100644 externals/httplib/README.md create mode 100644 externals/httplib/httplib.h (limited to 'externals/httplib') diff --git a/externals/httplib/README.md b/externals/httplib/README.md new file mode 100644 index 000000000..0e26522b5 --- /dev/null +++ b/externals/httplib/README.md @@ -0,0 +1,15 @@ +From https://github.com/yhirose/cpp-httplib/commit/d9479bc0b12e8a1e8bce2d34da4feeef488581f3 + +MIT License + +=== + +cpp-httplib + +A C++11 header-only HTTP library. + +It's extremely easy to setup. Just include httplib.h file in your code! + +Inspired by Sinatra and express. + +© 2017 Yuji Hirose diff --git a/externals/httplib/httplib.h b/externals/httplib/httplib.h new file mode 100644 index 000000000..dd9afe693 --- /dev/null +++ b/externals/httplib/httplib.h @@ -0,0 +1,2344 @@ +// +// httplib.h +// +// Copyright (c) 2017 Yuji Hirose. All rights reserved. +// MIT License +// + +#ifndef _CPPHTTPLIB_HTTPLIB_H_ +#define _CPPHTTPLIB_HTTPLIB_H_ + +#ifdef _WIN32 +#ifndef _CRT_SECURE_NO_WARNINGS +#define _CRT_SECURE_NO_WARNINGS +#endif +#ifndef _CRT_NONSTDC_NO_DEPRECATE +#define _CRT_NONSTDC_NO_DEPRECATE +#endif + +#if defined(_MSC_VER) && _MSC_VER < 1900 +#define snprintf _snprintf_s +#endif + +#ifndef S_ISREG +#define S_ISREG(m) (((m)&S_IFREG)==S_IFREG) +#endif +#ifndef S_ISDIR +#define S_ISDIR(m) (((m)&S_IFDIR)==S_IFDIR) +#endif + +#include +#include +#include + +#undef min +#undef max + +#ifndef strcasecmp +#define strcasecmp _stricmp +#endif + +typedef SOCKET socket_t; +#else +#include +#include +#include +#include +#include +#include +#include +#include +#include + +typedef int socket_t; +#define INVALID_SOCKET (-1) +#endif + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT +#include +#endif + +#ifdef CPPHTTPLIB_ZLIB_SUPPORT +#include +#endif + +/* + * Configuration + */ +#define CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND 5 +#define CPPHTTPLIB_KEEPALIVE_TIMEOUT_USECOND 0 + +namespace httplib +{ + +namespace detail { + +struct ci { + bool operator() (const std::string & s1, const std::string & s2) const { + return std::lexicographical_compare( + s1.begin(), s1.end(), + s2.begin(), s2.end(), + [](char c1, char c2) { + return ::tolower(c1) < ::tolower(c2); + }); + } +}; + +} // namespace detail + +enum class HttpVersion { v1_0 = 0, v1_1 }; + +typedef std::multimap Headers; + +template +std::pair make_range_header(uint64_t value, Args... args); + +typedef std::multimap Params; +typedef std::smatch Match; +typedef std::function Progress; + +struct MultipartFile { + std::string filename; + std::string content_type; + size_t offset = 0; + size_t length = 0; +}; +typedef std::multimap MultipartFiles; + +struct Request { + std::string version; + std::string method; + std::string target; + std::string path; + Headers headers; + std::string body; + Params params; + MultipartFiles files; + Match matches; + + Progress progress; + + bool has_header(const char* key) const; + std::string get_header_value(const char* key) const; + void set_header(const char* key, const char* val); + + bool has_param(const char* key) const; + std::string get_param_value(const char* key) const; + + bool has_file(const char* key) const; + MultipartFile get_file_value(const char* key) const; +}; + +struct Response { + std::string version; + int status; + Headers headers; + std::string body; + + bool has_header(const char* key) const; + std::string get_header_value(const char* key) const; + void set_header(const char* key, const char* val); + + void set_redirect(const char* uri); + void set_content(const char* s, size_t n, const char* content_type); + void set_content(const std::string& s, const char* content_type); + + Response() : status(-1) {} +}; + +class Stream { +public: + virtual ~Stream() {} + virtual int read(char* ptr, size_t size) = 0; + virtual int write(const char* ptr, size_t size1) = 0; + virtual int write(const char* ptr) = 0; + virtual std::string get_remote_addr() = 0; + + template + void write_format(const char* fmt, const Args& ...args); +}; + +class SocketStream : public Stream { +public: + SocketStream(socket_t sock); + virtual ~SocketStream(); + + virtual int read(char* ptr, size_t size); + virtual int write(const char* ptr, size_t size); + virtual int write(const char* ptr); + virtual std::string get_remote_addr(); + +private: + socket_t sock_; +}; + +class Server { +public: + typedef std::function Handler; + typedef std::function Logger; + + Server(); + + virtual ~Server(); + + virtual bool is_valid() const; + + Server& Get(const char* pattern, Handler handler); + Server& Post(const char* pattern, Handler handler); + + Server& Put(const char* pattern, Handler handler); + Server& Delete(const char* pattern, Handler handler); + Server& Options(const char* pattern, Handler handler); + + bool set_base_dir(const char* path); + + void set_error_handler(Handler handler); + void set_logger(Logger logger); + + void set_keep_alive_max_count(size_t count); + + int bind_to_any_port(const char* host, int socket_flags = 0); + bool listen_after_bind(); + + bool listen(const char* host, int port, int socket_flags = 0); + + bool is_running() const; + void stop(); + +protected: + bool process_request(Stream& strm, bool last_connection, bool& connection_close); + + size_t keep_alive_max_count_; + +private: + typedef std::vector> Handlers; + + socket_t create_server_socket(const char* host, int port, int socket_flags) const; + int bind_internal(const char* host, int port, int socket_flags); + bool listen_internal(); + + bool routing(Request& req, Response& res); + bool handle_file_request(Request& req, Response& res); + bool dispatch_request(Request& req, Response& res, Handlers& handlers); + + bool parse_request_line(const char* s, Request& req); + void write_response(Stream& strm, bool last_connection, const Request& req, Response& res); + + virtual bool read_and_close_socket(socket_t sock); + + bool is_running_; + socket_t svr_sock_; + std::string base_dir_; + Handlers get_handlers_; + Handlers post_handlers_; + Handlers put_handlers_; + Handlers delete_handlers_; + Handlers options_handlers_; + Handler error_handler_; + Logger logger_; + + // TODO: Use thread pool... + std::mutex running_threads_mutex_; + int running_threads_; +}; + +class Client { +public: + Client( + const char* host, + int port = 80, + size_t timeout_sec = 300); + + virtual ~Client(); + + virtual bool is_valid() const; + + std::shared_ptr Get(const char* path, Progress progress = nullptr); + std::shared_ptr Get(const char* path, const Headers& headers, Progress progress = nullptr); + + std::shared_ptr Head(const char* path); + std::shared_ptr Head(const char* path, const Headers& headers); + + std::shared_ptr Post(const char* path, const std::string& body, const char* content_type); + std::shared_ptr Post(const char* path, const Headers& headers, const std::string& body, const char* content_type); + + std::shared_ptr Post(const char* path, const Params& params); + std::shared_ptr Post(const char* path, const Headers& headers, const Params& params); + + std::shared_ptr Put(const char* path, const std::string& body, const char* content_type); + std::shared_ptr Put(const char* path, const Headers& headers, const std::string& body, const char* content_type); + + std::shared_ptr Delete(const char* path); + std::shared_ptr Delete(const char* path, const Headers& headers); + + std::shared_ptr Options(const char* path); + std::shared_ptr Options(const char* path, const Headers& headers); + + bool send(Request& req, Response& res); + +protected: + bool process_request(Stream& strm, Request& req, Response& res, bool& connection_close); + + const std::string host_; + const int port_; + size_t timeout_sec_; + const std::string host_and_port_; + +private: + socket_t create_client_socket() const; + bool read_response_line(Stream& strm, Response& res); + void write_request(Stream& strm, Request& req); + + virtual bool read_and_close_socket(socket_t sock, Request& req, Response& res); +}; + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT +class SSLSocketStream : public Stream { +public: + SSLSocketStream(socket_t sock, SSL* ssl); + virtual ~SSLSocketStream(); + + virtual int read(char* ptr, size_t size); + virtual int write(const char* ptr, size_t size); + virtual int write(const char* ptr); + virtual std::string get_remote_addr(); + +private: + socket_t sock_; + SSL* ssl_; +}; + +class SSLServer : public Server { +public: + SSLServer( + const char* cert_path, const char* private_key_path); + + virtual ~SSLServer(); + + virtual bool is_valid() const; + +private: + virtual bool read_and_close_socket(socket_t sock); + + SSL_CTX* ctx_; + std::mutex ctx_mutex_; +}; + +class SSLClient : public Client { +public: + SSLClient( + const char* host, + int port = 80, + size_t timeout_sec = 300); + + virtual ~SSLClient(); + + virtual bool is_valid() const; + +private: + virtual bool read_and_close_socket(socket_t sock, Request& req, Response& res); + + SSL_CTX* ctx_; + std::mutex ctx_mutex_; +}; +#endif + +/* + * Implementation + */ +namespace detail { + +template +void split(const char* b, const char* e, char d, Fn fn) +{ + int i = 0; + int beg = 0; + + while (e ? (b + i != e) : (b[i] != '\0')) { + if (b[i] == d) { + fn(&b[beg], &b[i]); + beg = i + 1; + } + i++; + } + + if (i) { + fn(&b[beg], &b[i]); + } +} + +// NOTE: until the read size reaches `fixed_buffer_size`, use `fixed_buffer` +// to store data. The call can set memory on stack for performance. +class stream_line_reader { +public: + stream_line_reader(Stream& strm, char* fixed_buffer, size_t fixed_buffer_size) + : strm_(strm) + , fixed_buffer_(fixed_buffer) + , fixed_buffer_size_(fixed_buffer_size) { + } + + const char* ptr() const { + if (glowable_buffer_.empty()) { + return fixed_buffer_; + } else { + return glowable_buffer_.data(); + } + } + + bool 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; + } + +private: + void 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; + } + } + + Stream& strm_; + char* fixed_buffer_; + const size_t fixed_buffer_size_; + size_t fixed_buffer_used_size_; + std::string glowable_buffer_; +}; + +inline int close_socket(socket_t sock) +{ +#ifdef _WIN32 + return closesocket(sock); +#else + return close(sock); +#endif +} + +inline int select_read(socket_t sock, size_t sec, size_t usec) +{ + fd_set fds; + FD_ZERO(&fds); + FD_SET(sock, &fds); + + timeval tv; + tv.tv_sec = sec; + tv.tv_usec = usec; + + return select(sock + 1, &fds, NULL, NULL, &tv); +} + +inline bool wait_until_socket_is_ready(socket_t sock, size_t sec, size_t usec) +{ + fd_set fdsr; + FD_ZERO(&fdsr); + FD_SET(sock, &fdsr); + + auto fdsw = fdsr; + auto fdse = fdsr; + + timeval tv; + tv.tv_sec = sec; + tv.tv_usec = usec; + + if (select(sock + 1, &fdsr, &fdsw, &fdse, &tv) < 0) { + return false; + } else if (FD_ISSET(sock, &fdsr) || FD_ISSET(sock, &fdsw)) { + int error = 0; + socklen_t len = sizeof(error); + if (getsockopt(sock, SOL_SOCKET, SO_ERROR, (char*)&error, &len) < 0 || error) { + return false; + } + } else { + return false; + } + + return true; +} + +template +inline bool read_and_close_socket(socket_t sock, size_t keep_alive_max_count, T callback) +{ + bool ret = false; + + if (keep_alive_max_count > 0) { + auto count = keep_alive_max_count; + while (count > 0 && + detail::select_read(sock, + CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND, + CPPHTTPLIB_KEEPALIVE_TIMEOUT_USECOND) > 0) { + SocketStream strm(sock); + auto last_connection = count == 1; + auto connection_close = false; + + ret = callback(strm, last_connection, connection_close); + if (!ret || connection_close) { + break; + } + + count--; + } + } else { + SocketStream strm(sock); + auto dummy_connection_close = false; + ret = callback(strm, true, dummy_connection_close); + } + + close_socket(sock); + return ret; +} + +inline 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 char* host, int port, Fn fn, int socket_flags = 0) +{ +#ifdef _WIN32 +#define SO_SYNCHRONOUS_NONALERT 0x20 +#define SO_OPENTYPE 0x7008 + + int opt = SO_SYNCHRONOUS_NONALERT; + setsockopt(INVALID_SOCKET, SOL_SOCKET, SO_OPENTYPE, (char*)&opt, sizeof(opt)); +#endif + + // Get address info + struct addrinfo hints; + struct addrinfo *result; + + memset(&hints, 0, sizeof(struct addrinfo)); + hints.ai_family = AF_UNSPEC; + hints.ai_socktype = SOCK_STREAM; + hints.ai_flags = socket_flags; + hints.ai_protocol = 0; + + auto service = std::to_string(port); + + if (getaddrinfo(host, service.c_str(), &hints, &result)) { + return INVALID_SOCKET; + } + + for (auto rp = result; rp; rp = rp->ai_next) { + // Create a socket + auto sock = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol); + if (sock == INVALID_SOCKET) { + continue; + } + + // Make 'reuse address' option available + int yes = 1; + setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (char*)&yes, sizeof(yes)); + + // bind or connect + if (fn(sock, *rp)) { + freeaddrinfo(result); + return sock; + } + + close_socket(sock); + } + + freeaddrinfo(result); + return INVALID_SOCKET; +} + +inline 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 +} + +inline bool is_connection_error() +{ +#ifdef _WIN32 + return WSAGetLastError() != WSAEWOULDBLOCK; +#else + return errno != EINPROGRESS; +#endif +} + +inline std::string get_remote_addr(socket_t sock) { + struct sockaddr_storage addr; + socklen_t len = sizeof(addr); + + if (!getpeername(sock, (struct sockaddr*)&addr, &len)) { + char ipstr[NI_MAXHOST]; + + if (!getnameinfo((struct sockaddr*)&addr, len, + ipstr, sizeof(ipstr), nullptr, 0, NI_NUMERICHOST)) { + return ipstr; + } + } + + return std::string(); +} + +inline bool is_file(const std::string& path) +{ + struct stat st; + return stat(path.c_str(), &st) >= 0 && S_ISREG(st.st_mode); +} + +inline bool is_dir(const std::string& path) +{ + struct stat st; + return stat(path.c_str(), &st) >= 0 && S_ISDIR(st.st_mode); +} + +inline 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; +} + +inline 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], size); +} + +inline std::string file_extension(const std::string& path) +{ + std::smatch m; + auto pat = std::regex("\\.([a-zA-Z0-9]+)$"); + if (std::regex_search(path, m, pat)) { + return m[1].str(); + } + return std::string(); +} + +inline const char* find_content_type(const std::string& path) +{ + auto ext = file_extension(path); + if (ext == "txt") { + return "text/plain"; + } else if (ext == "html") { + return "text/html"; + } else if (ext == "css") { + return "text/css"; + } else if (ext == "jpeg" || ext == "jpg") { + return "image/jpg"; + } else if (ext == "png") { + return "image/png"; + } else if (ext == "gif") { + return "image/gif"; + } else if (ext == "svg") { + return "image/svg+xml"; + } else if (ext == "ico") { + return "image/x-icon"; + } else if (ext == "json") { + return "application/json"; + } else if (ext == "pdf") { + return "application/pdf"; + } else if (ext == "js") { + return "application/javascript"; + } else if (ext == "xml") { + return "application/xml"; + } else if (ext == "xhtml") { + return "application/xhtml+xml"; + } + return nullptr; +} + +inline const char* status_message(int status) +{ + switch (status) { + case 200: return "OK"; + case 301: return "Moved Permanently"; + case 302: return "Found"; + case 303: return "See Other"; + case 304: return "Not Modified"; + case 400: return "Bad Request"; + case 403: return "Forbidden"; + case 404: return "Not Found"; + case 415: return "Unsupported Media Type"; + default: + case 500: return "Internal Server Error"; + } +} + +inline const char* get_header_value(const Headers& headers, const char* key, const char* def) +{ + auto it = headers.find(key); + if (it != headers.end()) { + return it->second.c_str(); + } + return def; +} + +inline int get_header_value_int(const Headers& headers, const char* key, int def) +{ + auto it = headers.find(key); + if (it != headers.end()) { + return std::stoi(it->second); + } + return def; +} + +inline bool read_headers(Stream& strm, Headers& headers) +{ + static std::regex re(R"((.+?):\s*(.+?)\s*\r\n)"); + + const auto bufsiz = 2048; + char buf[bufsiz]; + + stream_line_reader reader(strm, buf, bufsiz); + + for (;;) { + if (!reader.getline()) { + return false; + } + if (!strcmp(reader.ptr(), "\r\n")) { + break; + } + std::cmatch m; + if (std::regex_match(reader.ptr(), m, re)) { + auto key = std::string(m[1]); + auto val = std::string(m[2]); + headers.emplace(key, val); + } + } + + return true; +} + +inline bool read_content_with_length(Stream& strm, std::string& out, size_t len, Progress progress) +{ + out.assign(len, 0); + size_t r = 0; + while (r < len){ + auto n = strm.read(&out[r], len - r); + if (n <= 0) { + return false; + } + + r += n; + + if (progress) { + progress(r, len); + } + } + + return true; +} + +inline bool read_content_without_length(Stream& strm, std::string& out) +{ + for (;;) { + char byte; + auto n = strm.read(&byte, 1); + if (n < 0) { + return false; + } else if (n == 0) { + return true; + } + out += byte; + } + + return true; +} + +inline bool read_content_chunked(Stream& strm, std::string& out) +{ + const auto bufsiz = 16; + char buf[bufsiz]; + + stream_line_reader reader(strm, buf, bufsiz); + + if (!reader.getline()) { + return false; + } + + auto chunk_len = std::stoi(reader.ptr(), 0, 16); + + while (chunk_len > 0){ + std::string chunk; + if (!read_content_with_length(strm, chunk, chunk_len, nullptr)) { + return false; + } + + if (!reader.getline()) { + return false; + } + + if (strcmp(reader.ptr(), "\r\n")) { + break; + } + + out += chunk; + + if (!reader.getline()) { + return false; + } + + chunk_len = std::stoi(reader.ptr(), 0, 16); + } + + if (chunk_len == 0) { + // Reader terminator after chunks + if (!reader.getline() || strcmp(reader.ptr(), "\r\n")) + return false; + } + + return true; +} + +template +bool read_content(Stream& strm, T& x, Progress progress = Progress()) +{ + auto len = get_header_value_int(x.headers, "Content-Length", 0); + + if (len) { + return read_content_with_length(strm, x.body, len, progress); + } else { + const auto& encoding = get_header_value(x.headers, "Transfer-Encoding", ""); + + if (!strcasecmp(encoding, "chunked")) { + return read_content_chunked(strm, x.body); + } else { + return read_content_without_length(strm, x.body); + } + } + + return true; +} + +template +inline void write_headers(Stream& strm, const T& info) +{ + for (const auto& x: info.headers) { + strm.write_format("%s: %s\r\n", x.first.c_str(), x.second.c_str()); + } + strm.write("\r\n"); +} + +inline std::string encode_url(const std::string& s) +{ + std::string result; + + for (auto i = 0; s[i]; i++) { + switch (s[i]) { + case ' ': result += "+"; break; + case '\'': result += "%27"; break; + case ',': result += "%2C"; break; + case ':': result += "%3A"; break; + case ';': result += "%3B"; break; + default: + if (s[i] < 0) { + result += '%'; + char hex[4]; + size_t len = snprintf(hex, sizeof(hex) - 1, "%02X", (unsigned char)s[i]); + assert(len == 2); + result.append(hex, len); + } else { + result += s[i]; + } + break; + } + } + + return result; +} + +inline 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; +} + +inline 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; +} + +inline size_t to_utf8(int code, char* buff) +{ + if (code < 0x0080) { + buff[0] = (code & 0x7F); + return 1; + } else if (code < 0x0800) { + buff[0] = (0xC0 | ((code >> 6) & 0x1F)); + buff[1] = (0x80 | (code & 0x3F)); + return 2; + } else if (code < 0xD800) { + buff[0] = (0xE0 | ((code >> 12) & 0xF)); + buff[1] = (0x80 | ((code >> 6) & 0x3F)); + buff[2] = (0x80 | (code & 0x3F)); + return 3; + } else if (code < 0xE000) { // D800 - DFFF is invalid... + return 0; + } else if (code < 0x10000) { + buff[0] = (0xE0 | ((code >> 12) & 0xF)); + buff[1] = (0x80 | ((code >> 6) & 0x3F)); + buff[2] = (0x80 | (code & 0x3F)); + return 3; + } else if (code < 0x110000) { + buff[0] = (0xF0 | ((code >> 18) & 0x7)); + buff[1] = (0x80 | ((code >> 12) & 0x3F)); + buff[2] = (0x80 | ((code >> 6) & 0x3F)); + buff[3] = (0x80 | (code & 0x3F)); + return 4; + } + + // NOTREACHED + return 0; +} + +inline std::string decode_url(const std::string& s) +{ + 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 += val; + i += 2; // '00' + } else { + result += s[i]; + } + } + } else if (s[i] == '+') { + result += ' '; + } else { + result += s[i]; + } + } + + return result; +} + +inline void parse_query_text(const std::string& s, Params& params) +{ + split(&s[0], &s[s.size()], '&', [&](const char* b, const char* e) { + std::string key; + std::string val; + split(b, e, '=', [&](const char* b, const char* e) { + if (key.empty()) { + key.assign(b, e); + } else { + val.assign(b, e); + } + }); + params.emplace(key, decode_url(val)); + }); +} + +inline 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); + return true; +} + +inline bool parse_multipart_formdata( + const std::string& boundary, const std::string& body, MultipartFiles& files) +{ + static std::string dash = "--"; + static std::string crlf = "\r\n"; + + static std::regex re_content_type( + "Content-Type: (.*?)", std::regex_constants::icase); + + static std::regex re_content_disposition( + "Content-Disposition: form-data; name=\"(.*?)\"(?:; filename=\"(.*?)\")?", + std::regex_constants::icase); + + auto dash_boundary = dash + boundary; + + auto pos = body.find(dash_boundary); + if (pos != 0) { + return false; + } + + pos += dash_boundary.size(); + + auto next_pos = body.find(crlf, pos); + if (next_pos == std::string::npos) { + return false; + } + + pos = next_pos + crlf.size(); + + while (pos < body.size()) { + next_pos = body.find(crlf, pos); + if (next_pos == std::string::npos) { + return false; + } + + std::string name; + MultipartFile file; + + auto header = body.substr(pos, (next_pos - pos)); + + while (pos != next_pos) { + std::smatch m; + if (std::regex_match(header, m, re_content_type)) { + file.content_type = m[1]; + } else if (std::regex_match(header, m, re_content_disposition)) { + name = m[1]; + file.filename = m[2]; + } + + pos = next_pos + crlf.size(); + + next_pos = body.find(crlf, pos); + if (next_pos == std::string::npos) { + return false; + } + + header = body.substr(pos, (next_pos - pos)); + } + + pos = next_pos + crlf.size(); + + next_pos = body.find(crlf + dash_boundary, pos); + + if (next_pos == std::string::npos) { + return false; + } + + file.offset = pos; + file.length = next_pos - pos; + + pos = next_pos + crlf.size() + dash_boundary.size(); + + next_pos = body.find(crlf, pos); + if (next_pos == std::string::npos) { + return false; + } + + files.emplace(name, file); + + pos = next_pos + crlf.size(); + } + + return true; +} + +inline std::string to_lower(const char* beg, const char* end) +{ + std::string out; + auto it = beg; + while (it != end) { + out += ::tolower(*it); + it++; + } + return out; +} + +inline void make_range_header_core(std::string&) {} + +template +inline void make_range_header_core(std::string& field, uint64_t value) +{ + if (!field.empty()) { + field += ", "; + } + field += std::to_string(value) + "-"; +} + +template +inline void make_range_header_core(std::string& field, uint64_t value1, uint64_t value2, Args... args) +{ + if (!field.empty()) { + field += ", "; + } + field += std::to_string(value1) + "-" + std::to_string(value2); + make_range_header_core(field, args...); +} + +#ifdef CPPHTTPLIB_ZLIB_SUPPORT +inline bool can_compress(const std::string& content_type) { + return !content_type.find("text/") || + content_type == "image/svg+xml" || + content_type == "application/javascript" || + content_type == "application/json" || + content_type == "application/xml" || + content_type == "application/xhtml+xml"; +} + +inline void compress(std::string& content) +{ + z_stream strm; + strm.zalloc = Z_NULL; + strm.zfree = Z_NULL; + strm.opaque = Z_NULL; + + auto ret = deflateInit2(&strm, Z_DEFAULT_COMPRESSION, Z_DEFLATED, 31, 8, Z_DEFAULT_STRATEGY); + if (ret != Z_OK) { + return; + } + + strm.avail_in = content.size(); + strm.next_in = (Bytef *)content.data(); + + std::string compressed; + + const auto bufsiz = 16384; + char buff[bufsiz]; + do { + strm.avail_out = bufsiz; + strm.next_out = (Bytef *)buff; + deflate(&strm, Z_FINISH); + compressed.append(buff, bufsiz - strm.avail_out); + } while (strm.avail_out == 0); + + content.swap(compressed); + + deflateEnd(&strm); +} + +inline void decompress(std::string& content) +{ + z_stream 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 16 specifies that the stream + // to decompress will be formatted with a gzip wrapper. + auto ret = inflateInit2(&strm, 16 + 15); + if (ret != Z_OK) { + return; + } + + strm.avail_in = content.size(); + strm.next_in = (Bytef *)content.data(); + + std::string decompressed; + + const auto bufsiz = 16384; + char buff[bufsiz]; + do { + strm.avail_out = bufsiz; + strm.next_out = (Bytef *)buff; + inflate(&strm, Z_NO_FLUSH); + decompressed.append(buff, bufsiz - strm.avail_out); + } while (strm.avail_out == 0); + + content.swap(decompressed); + + inflateEnd(&strm); +} +#endif + +#ifdef _WIN32 +class WSInit { +public: + WSInit() { + WSADATA wsaData; + WSAStartup(0x0002, &wsaData); + } + + ~WSInit() { + WSACleanup(); + } +}; + +static WSInit wsinit_; +#endif + +} // namespace detail + +// Header utilities +template +inline std::pair make_range_header(uint64_t value, Args... args) +{ + std::string field; + detail::make_range_header_core(field, value, args...); + field.insert(0, "bytes="); + return std::make_pair("Range", field); +} + +// Request implementation +inline bool Request::has_header(const char* key) const +{ + return headers.find(key) != headers.end(); +} + +inline std::string Request::get_header_value(const char* key) const +{ + return detail::get_header_value(headers, key, ""); +} + +inline void Request::set_header(const char* key, const char* val) +{ + headers.emplace(key, val); +} + +inline bool Request::has_param(const char* key) const +{ + return params.find(key) != params.end(); +} + +inline std::string Request::get_param_value(const char* key) const +{ + auto it = params.find(key); + if (it != params.end()) { + return it->second; + } + return std::string(); +} + +inline bool Request::has_file(const char* key) const +{ + return files.find(key) != files.end(); +} + +inline MultipartFile Request::get_file_value(const char* key) const +{ + auto it = files.find(key); + if (it != files.end()) { + return it->second; + } + return MultipartFile(); +} + +// Response implementation +inline bool Response::has_header(const char* key) const +{ + return headers.find(key) != headers.end(); +} + +inline std::string Response::get_header_value(const char* key) const +{ + return detail::get_header_value(headers, key, ""); +} + +inline void Response::set_header(const char* key, const char* val) +{ + headers.emplace(key, val); +} + +inline void Response::set_redirect(const char* url) +{ + set_header("Location", url); + status = 302; +} + +inline void Response::set_content(const char* s, size_t n, const char* content_type) +{ + body.assign(s, n); + set_header("Content-Type", content_type); +} + +inline void Response::set_content(const std::string& s, const char* content_type) +{ + body = s; + set_header("Content-Type", content_type); +} + +// Rstream implementation +template +inline void Stream::write_format(const char* fmt, const Args& ...args) +{ + const auto bufsiz = 2048; + char buf[bufsiz]; + +#if defined(_MSC_VER) && _MSC_VER < 1900 + auto n = _snprintf_s(buf, bufsiz, bufsiz - 1, fmt, args...); +#else + auto n = snprintf(buf, bufsiz - 1, fmt, args...); +#endif + if (n > 0) { + if (n >= bufsiz - 1) { + std::vector glowable_buf(bufsiz); + + while (n >= static_cast(glowable_buf.size() - 1)) { + glowable_buf.resize(glowable_buf.size() * 2); +#if defined(_MSC_VER) && _MSC_VER < 1900 + n = _snprintf_s(&glowable_buf[0], glowable_buf.size(), glowable_buf.size() - 1, fmt, args...); +#else + n = snprintf(&glowable_buf[0], glowable_buf.size() - 1, fmt, args...); +#endif + } + write(&glowable_buf[0], n); + } else { + write(buf, n); + } + } +} + +// Socket stream implementation +inline SocketStream::SocketStream(socket_t sock): sock_(sock) +{ +} + +inline SocketStream::~SocketStream() +{ +} + +inline int SocketStream::read(char* ptr, size_t size) +{ + return recv(sock_, ptr, size, 0); +} + +inline int SocketStream::write(const char* ptr, size_t size) +{ + return send(sock_, ptr, size, 0); +} + +inline int SocketStream::write(const char* ptr) +{ + return write(ptr, strlen(ptr)); +} + +inline std::string SocketStream::get_remote_addr() { + return detail::get_remote_addr(sock_); +} + +// HTTP server implementation +inline Server::Server() + : keep_alive_max_count_(5) + , is_running_(false) + , svr_sock_(INVALID_SOCKET) + , running_threads_(0) +{ +#ifndef _WIN32 + signal(SIGPIPE, SIG_IGN); +#endif +} + +inline Server::~Server() +{ +} + +inline Server& Server::Get(const char* pattern, Handler handler) +{ + get_handlers_.push_back(std::make_pair(std::regex(pattern), handler)); + return *this; +} + +inline Server& Server::Post(const char* pattern, Handler handler) +{ + post_handlers_.push_back(std::make_pair(std::regex(pattern), handler)); + return *this; +} + +inline Server& Server::Put(const char* pattern, Handler handler) +{ + put_handlers_.push_back(std::make_pair(std::regex(pattern), handler)); + return *this; +} + +inline Server& Server::Delete(const char* pattern, Handler handler) +{ + delete_handlers_.push_back(std::make_pair(std::regex(pattern), handler)); + return *this; +} + +inline Server& Server::Options(const char* pattern, Handler handler) +{ + options_handlers_.push_back(std::make_pair(std::regex(pattern), handler)); + return *this; +} + +inline bool Server::set_base_dir(const char* path) +{ + if (detail::is_dir(path)) { + base_dir_ = path; + return true; + } + return false; +} + +inline void Server::set_error_handler(Handler handler) +{ + error_handler_ = handler; +} + +inline void Server::set_logger(Logger logger) +{ + logger_ = logger; +} + +inline void Server::set_keep_alive_max_count(size_t count) +{ + keep_alive_max_count_ = count; +} + +inline int Server::bind_to_any_port(const char* host, int socket_flags) +{ + return bind_internal(host, 0, socket_flags); +} + +inline bool Server::listen_after_bind() { + return listen_internal(); +} + +inline bool Server::listen(const char* host, int port, int socket_flags) +{ + if (bind_internal(host, port, socket_flags) < 0) + return false; + return listen_internal(); +} + +inline bool Server::is_running() const +{ + return is_running_; +} + +inline void Server::stop() +{ + if (is_running_) { + assert(svr_sock_ != INVALID_SOCKET); + detail::shutdown_socket(svr_sock_); + detail::close_socket(svr_sock_); + svr_sock_ = INVALID_SOCKET; + } +} + +inline bool Server::parse_request_line(const char* s, Request& req) +{ + static std::regex re("(GET|HEAD|POST|PUT|DELETE|OPTIONS) (([^?]+)(?:\\?(.+?))?) (HTTP/1\\.[01])\r\n"); + + std::cmatch m; + if (std::regex_match(s, m, re)) { + req.version = std::string(m[4]); + req.method = std::string(m[1]); + req.target = std::string(m[2]); + req.path = detail::decode_url(m[3]); + + // Parse query text + auto len = std::distance(m[4].first, m[4].second); + if (len > 0) { + detail::parse_query_text(m[4], req.params); + } + + return true; + } + + return false; +} + +inline void Server::write_response(Stream& strm, bool last_connection, const Request& req, Response& res) +{ + assert(res.status != -1); + + if (400 <= res.status && error_handler_) { + error_handler_(req, res); + } + + // Response line + strm.write_format("HTTP/1.1 %d %s\r\n", + res.status, + detail::status_message(res.status)); + + // Headers + if (last_connection || + req.version == "HTTP/1.0" || + req.get_header_value("Connection") == "close") { + res.set_header("Connection", "close"); + } + + if (!res.body.empty()) { +#ifdef CPPHTTPLIB_ZLIB_SUPPORT + // TODO: 'Accpet-Encoding' has gzip, not gzip;q=0 + const auto& encodings = req.get_header_value("Accept-Encoding"); + if (encodings.find("gzip") != std::string::npos && + detail::can_compress(res.get_header_value("Content-Type"))) { + detail::compress(res.body); + res.set_header("Content-Encoding", "gzip"); + } +#endif + + if (!res.has_header("Content-Type")) { + res.set_header("Content-Type", "text/plain"); + } + + auto length = std::to_string(res.body.size()); + res.set_header("Content-Length", length.c_str()); + } + + detail::write_headers(strm, res); + + // Body + if (!res.body.empty() && req.method != "HEAD") { + strm.write(res.body.c_str(), res.body.size()); + } + + // Log + if (logger_) { + logger_(req, res); + } +} + +inline bool Server::handle_file_request(Request& req, Response& res) +{ + if (!base_dir_.empty() && detail::is_valid_path(req.path)) { + std::string path = base_dir_ + req.path; + + if (!path.empty() && path.back() == '/') { + path += "index.html"; + } + + if (detail::is_file(path)) { + detail::read_file(path, res.body); + auto type = detail::find_content_type(path); + if (type) { + res.set_header("Content-Type", type); + } + res.status = 200; + return true; + } + } + + return false; +} + +inline socket_t Server::create_server_socket(const char* host, int port, int socket_flags) const +{ + return detail::create_socket(host, port, + [](socket_t sock, struct addrinfo& ai) -> bool { + if (::bind(sock, ai.ai_addr, ai.ai_addrlen)) { + return false; + } + if (::listen(sock, 5)) { // Listen through 5 channels + return false; + } + return true; + }, socket_flags); +} + +inline int Server::bind_internal(const char* host, int port, int socket_flags) +{ + if (!is_valid()) { + return -1; + } + + svr_sock_ = create_server_socket(host, port, socket_flags); + if (svr_sock_ == INVALID_SOCKET) { + return -1; + } + + if (port == 0) { + struct sockaddr_storage address; + socklen_t len = sizeof(address); + if (getsockname(svr_sock_, reinterpret_cast(&address), &len) == -1) { + return -1; + } + if (address.ss_family == AF_INET) { + return ntohs(reinterpret_cast(&address)->sin_port); + } else if (address.ss_family == AF_INET6) { + return ntohs(reinterpret_cast(&address)->sin6_port); + } else { + return -1; + } + } else { + return port; + } +} + +inline bool Server::listen_internal() +{ + auto ret = true; + + is_running_ = true; + + for (;;) { + auto val = detail::select_read(svr_sock_, 0, 100000); + + if (val == 0) { // Timeout + if (svr_sock_ == INVALID_SOCKET) { + // The server socket was closed by 'stop' method. + break; + } + continue; + } + + socket_t sock = accept(svr_sock_, NULL, NULL); + + if (sock == INVALID_SOCKET) { + if (svr_sock_ != INVALID_SOCKET) { + detail::close_socket(svr_sock_); + ret = false; + } else { + ; // The server socket was closed by user. + } + break; + } + + // TODO: Use thread pool... + std::thread([=]() { + { + std::lock_guard guard(running_threads_mutex_); + running_threads_++; + } + + read_and_close_socket(sock); + + { + std::lock_guard guard(running_threads_mutex_); + running_threads_--; + } + }).detach(); + } + + // TODO: Use thread pool... + for (;;) { + std::this_thread::sleep_for(std::chrono::milliseconds(10)); + std::lock_guard guard(running_threads_mutex_); + if (!running_threads_) { + break; + } + } + + is_running_ = false; + + return ret; +} + +inline bool Server::routing(Request& req, Response& res) +{ + if (req.method == "GET" && handle_file_request(req, res)) { + return true; + } + + 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_); + } + return false; +} + +inline bool Server::dispatch_request(Request& req, Response& res, 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; +} + +inline bool Server::process_request(Stream& strm, bool last_connection, bool& connection_close) +{ + const auto bufsiz = 2048; + char buf[bufsiz]; + + detail::stream_line_reader reader(strm, buf, bufsiz); + + // Connection has been closed on client + if (!reader.getline()) { + return false; + } + + Request req; + Response res; + + res.version = "HTTP/1.1"; + + // Request line and headers + if (!parse_request_line(reader.ptr(), req) || !detail::read_headers(strm, req.headers)) { + res.status = 400; + write_response(strm, last_connection, req, res); + return true; + } + + auto ret = true; + if (req.get_header_value("Connection") == "close") { + // ret = false; + connection_close = true; + } + + req.set_header("REMOTE_ADDR", strm.get_remote_addr().c_str()); + + // Body + if (req.method == "POST" || req.method == "PUT") { + if (!detail::read_content(strm, req)) { + res.status = 400; + write_response(strm, last_connection, req, res); + return ret; + } + + const auto& content_type = req.get_header_value("Content-Type"); + + if (req.get_header_value("Content-Encoding") == "gzip") { +#ifdef CPPHTTPLIB_ZLIB_SUPPORT + detail::decompress(req.body); +#else + res.status = 415; + write_response(strm, last_connection, req, res); + return ret; +#endif + } + + if (!content_type.find("application/x-www-form-urlencoded")) { + detail::parse_query_text(req.body, req.params); + } else if(!content_type.find("multipart/form-data")) { + std::string boundary; + if (!detail::parse_multipart_boundary(content_type, boundary) || + !detail::parse_multipart_formdata(boundary, req.body, req.files)) { + res.status = 400; + write_response(strm, last_connection, req, res); + return ret; + } + } + } + + if (routing(req, res)) { + if (res.status == -1) { + res.status = 200; + } + } else { + res.status = 404; + } + + write_response(strm, last_connection, req, res); + return ret; +} + +inline bool Server::is_valid() const +{ + return true; +} + +inline bool Server::read_and_close_socket(socket_t sock) +{ + return detail::read_and_close_socket( + sock, + keep_alive_max_count_, + [this](Stream& strm, bool last_connection, bool& connection_close) { + return process_request(strm, last_connection, connection_close); + }); +} + +// HTTP client implementation +inline Client::Client( + const char* host, int port, size_t timeout_sec) + : host_(host) + , port_(port) + , timeout_sec_(timeout_sec) + , host_and_port_(host_ + ":" + std::to_string(port_)) +{ +} + +inline Client::~Client() +{ +} + +inline bool Client::is_valid() const +{ + return true; +} + +inline socket_t Client::create_client_socket() const +{ + return detail::create_socket(host_.c_str(), port_, + [=](socket_t sock, struct addrinfo& ai) -> bool { + detail::set_nonblocking(sock, true); + + auto ret = connect(sock, ai.ai_addr, ai.ai_addrlen); + if (ret < 0) { + if (detail::is_connection_error() || + !detail::wait_until_socket_is_ready(sock, timeout_sec_, 0)) { + detail::close_socket(sock); + return false; + } + } + + detail::set_nonblocking(sock, false); + return true; + }); +} + +inline bool Client::read_response_line(Stream& strm, Response& res) +{ + const auto bufsiz = 2048; + char buf[bufsiz]; + + detail::stream_line_reader reader(strm, buf, bufsiz); + + if (!reader.getline()) { + return false; + } + + const static std::regex re("(HTTP/1\\.[01]) (\\d+?) .+\r\n"); + + std::cmatch m; + if (std::regex_match(reader.ptr(), m, re)) { + res.version = std::string(m[1]); + res.status = std::stoi(std::string(m[2])); + } + + return true; +} + +inline bool Client::send(Request& req, Response& res) +{ + if (req.path.empty()) { + return false; + } + + auto sock = create_client_socket(); + if (sock == INVALID_SOCKET) { + return false; + } + + return read_and_close_socket(sock, req, res); +} + +inline void Client::write_request(Stream& strm, Request& req) +{ + auto path = detail::encode_url(req.path); + + // Request line + strm.write_format("%s %s HTTP/1.1\r\n", + req.method.c_str(), + path.c_str()); + + // Headers + req.set_header("Host", host_and_port_.c_str()); + + if (!req.has_header("Accept")) { + req.set_header("Accept", "*/*"); + } + + if (!req.has_header("User-Agent")) { + req.set_header("User-Agent", "cpp-httplib/0.2"); + } + + // TODO: Support KeepAlive connection + // if (!req.has_header("Connection")) { + req.set_header("Connection", "close"); + // } + + if (!req.body.empty()) { + if (!req.has_header("Content-Type")) { + req.set_header("Content-Type", "text/plain"); + } + + auto length = std::to_string(req.body.size()); + req.set_header("Content-Length", length.c_str()); + } + + detail::write_headers(strm, req); + + // Body + if (!req.body.empty()) { + if (req.get_header_value("Content-Type") == "application/x-www-form-urlencoded") { + auto str = detail::encode_url(req.body); + strm.write(str.c_str(), str.size()); + } else { + strm.write(req.body.c_str(), req.body.size()); + } + } +} + +inline bool Client::process_request(Stream& strm, Request& req, Response& res, bool& connection_close) +{ + // Send request + write_request(strm, req); + + // Receive response and headers + if (!read_response_line(strm, res) || !detail::read_headers(strm, res.headers)) { + return false; + } + + if (res.get_header_value("Connection") == "close" || res.version == "HTTP/1.0") { + connection_close = true; + } + + // Body + if (req.method != "HEAD") { + if (!detail::read_content(strm, res, req.progress)) { + return false; + } + + if (res.get_header_value("Content-Encoding") == "gzip") { +#ifdef CPPHTTPLIB_ZLIB_SUPPORT + detail::decompress(res.body); +#else + return false; +#endif + } + } + + return true; +} + +inline bool Client::read_and_close_socket(socket_t sock, Request& req, Response& res) +{ + return detail::read_and_close_socket( + sock, + 0, + [&](Stream& strm, bool /*last_connection*/, bool& connection_close) { + return process_request(strm, req, res, connection_close); + }); +} + +inline std::shared_ptr Client::Get(const char* path, Progress progress) +{ + return Get(path, Headers(), progress); +} + +inline std::shared_ptr Client::Get(const char* path, const Headers& headers, Progress progress) +{ + Request req; + req.method = "GET"; + req.path = path; + req.headers = headers; + req.progress = progress; + + auto res = std::make_shared(); + + return send(req, *res) ? res : nullptr; +} + +inline std::shared_ptr Client::Head(const char* path) +{ + return Head(path, Headers()); +} + +inline std::shared_ptr Client::Head(const char* path, const Headers& headers) +{ + Request req; + req.method = "HEAD"; + req.headers = headers; + req.path = path; + + auto res = std::make_shared(); + + return send(req, *res) ? res : nullptr; +} + +inline std::shared_ptr Client::Post( + const char* path, const std::string& body, const char* content_type) +{ + return Post(path, Headers(), body, content_type); +} + +inline std::shared_ptr Client::Post( + const char* path, const Headers& headers, const std::string& body, const char* content_type) +{ + Request req; + req.method = "POST"; + req.headers = headers; + req.path = path; + + req.headers.emplace("Content-Type", content_type); + req.body = body; + + auto res = std::make_shared(); + + return send(req, *res) ? res : nullptr; +} + +inline std::shared_ptr Client::Post(const char* path, const Params& params) +{ + return Post(path, Headers(), params); +} + +inline std::shared_ptr Client::Post(const char* path, const Headers& headers, const Params& params) +{ + std::string query; + for (auto it = params.begin(); it != params.end(); ++it) { + if (it != params.begin()) { + query += "&"; + } + query += it->first; + query += "="; + query += it->second; + } + + return Post(path, headers, query, "application/x-www-form-urlencoded"); +} + +inline std::shared_ptr Client::Put( + const char* path, const std::string& body, const char* content_type) +{ + return Put(path, Headers(), body, content_type); +} + +inline std::shared_ptr Client::Put( + const char* path, const Headers& headers, const std::string& body, const char* content_type) +{ + Request req; + req.method = "PUT"; + req.headers = headers; + req.path = path; + + req.headers.emplace("Content-Type", content_type); + req.body = body; + + auto res = std::make_shared(); + + return send(req, *res) ? res : nullptr; +} + +inline std::shared_ptr Client::Delete(const char* path) +{ + return Delete(path, Headers()); +} + +inline std::shared_ptr Client::Delete(const char* path, const Headers& headers) +{ + Request req; + req.method = "DELETE"; + req.path = path; + req.headers = headers; + + auto res = std::make_shared(); + + return send(req, *res) ? res : nullptr; +} + +inline std::shared_ptr Client::Options(const char* path) +{ + return Options(path, Headers()); +} + +inline std::shared_ptr Client::Options(const char* path, const Headers& headers) +{ + Request req; + req.method = "OPTIONS"; + req.path = path; + req.headers = headers; + + auto res = std::make_shared(); + + return send(req, *res) ? res : nullptr; +} + +/* + * SSL Implementation + */ +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT +namespace detail { + +template +inline bool read_and_close_socket_ssl( + socket_t sock, size_t keep_alive_max_count, + // TODO: OpenSSL 1.0.2 occasionally crashes... + // The upcoming 1.1.0 is going to be thread safe. + SSL_CTX* ctx, std::mutex& ctx_mutex, + U SSL_connect_or_accept, V setup, + T callback) +{ + SSL* ssl = nullptr; + { + std::lock_guard guard(ctx_mutex); + + ssl = SSL_new(ctx); + if (!ssl) { + return false; + } + } + + auto bio = BIO_new_socket(sock, BIO_NOCLOSE); + SSL_set_bio(ssl, bio, bio); + + setup(ssl); + + SSL_connect_or_accept(ssl); + + bool ret = false; + + if (keep_alive_max_count > 0) { + auto count = keep_alive_max_count; + while (count > 0 && + detail::select_read(sock, + CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND, + CPPHTTPLIB_KEEPALIVE_TIMEOUT_USECOND) > 0) { + SSLSocketStream strm(sock, ssl); + auto last_connection = count == 1; + auto connection_close = false; + + ret = callback(strm, last_connection, connection_close); + if (!ret || connection_close) { + break; + } + + count--; + } + } else { + SSLSocketStream strm(sock, ssl); + auto dummy_connection_close = false; + ret = callback(strm, true, dummy_connection_close); + } + + SSL_shutdown(ssl); + + { + std::lock_guard guard(ctx_mutex); + SSL_free(ssl); + } + + close_socket(sock); + + return ret; +} + +class SSLInit { +public: + SSLInit() { + SSL_load_error_strings(); + SSL_library_init(); + } +}; + +static SSLInit sslinit_; + +} // namespace detail + +// SSL socket stream implementation +inline SSLSocketStream::SSLSocketStream(socket_t sock, SSL* ssl) + : sock_(sock), ssl_(ssl) +{ +} + +inline SSLSocketStream::~SSLSocketStream() +{ +} + +inline int SSLSocketStream::read(char* ptr, size_t size) +{ + return SSL_read(ssl_, ptr, size); +} + +inline int SSLSocketStream::write(const char* ptr, size_t size) +{ + return SSL_write(ssl_, ptr, size); +} + +inline int SSLSocketStream::write(const char* ptr) +{ + return write(ptr, strlen(ptr)); +} + +inline std::string SSLSocketStream::get_remote_addr() { + return detail::get_remote_addr(sock_); +} + +// SSL HTTP server implementation +inline SSLServer::SSLServer(const char* cert_path, const char* private_key_path) +{ + ctx_ = SSL_CTX_new(SSLv23_server_method()); + + if (ctx_) { + SSL_CTX_set_options(ctx_, + SSL_OP_ALL | SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3 | + SSL_OP_NO_COMPRESSION | + SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION); + + // auto ecdh = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1); + // SSL_CTX_set_tmp_ecdh(ctx_, ecdh); + // EC_KEY_free(ecdh); + + if (SSL_CTX_use_certificate_file(ctx_, cert_path, SSL_FILETYPE_PEM) != 1 || + SSL_CTX_use_PrivateKey_file(ctx_, private_key_path, SSL_FILETYPE_PEM) != 1) { + SSL_CTX_free(ctx_); + ctx_ = nullptr; + } + } +} + +inline SSLServer::~SSLServer() +{ + if (ctx_) { + SSL_CTX_free(ctx_); + } +} + +inline bool SSLServer::is_valid() const +{ + return ctx_; +} + +inline bool SSLServer::read_and_close_socket(socket_t sock) +{ + return detail::read_and_close_socket_ssl( + sock, + keep_alive_max_count_, + ctx_, ctx_mutex_, + SSL_accept, + [](SSL* /*ssl*/) {}, + [this](Stream& strm, bool last_connection, bool& connection_close) { + return process_request(strm, last_connection, connection_close); + }); +} + +// SSL HTTP client implementation +inline SSLClient::SSLClient(const char* host, int port, size_t timeout_sec) + : Client(host, port, timeout_sec) +{ + ctx_ = SSL_CTX_new(SSLv23_client_method()); +} + +inline SSLClient::~SSLClient() +{ + if (ctx_) { + SSL_CTX_free(ctx_); + } +} + +inline bool SSLClient::is_valid() const +{ + return ctx_; +} + +inline bool SSLClient::read_and_close_socket(socket_t sock, Request& req, Response& res) +{ + return is_valid() && detail::read_and_close_socket_ssl( + sock, 0, + ctx_, ctx_mutex_, + SSL_connect, + [&](SSL* ssl) { + SSL_set_tlsext_host_name(ssl, host_.c_str()); + }, + [&](Stream& strm, bool /*last_connection*/, bool& connection_close) { + return process_request(strm, req, res, connection_close); + }); +} +#endif + +} // namespace httplib + +#endif + +// vim: et ts=4 sw=4 cin cino={1s ff=unix -- cgit v1.2.3