From d184a3a1eee4ffbdd42d9290e725efab09ab620c Mon Sep 17 00:00:00 2001 From: James Date: Thu, 14 Jun 2018 16:00:07 +1000 Subject: [PATCH] Update cpp-httplib for gzip + chunked encoding fixes --- externals/httplib/httplib.h | 757 ++++++++++++++++++++++---------- src/web_service/web_backend.cpp | 6 +- 2 files changed, 532 insertions(+), 231 deletions(-) diff --git a/externals/httplib/httplib.h b/externals/httplib/httplib.h index 85a8ffedc..dd9afe693 100644 --- a/externals/httplib/httplib.h +++ b/externals/httplib/httplib.h @@ -34,6 +34,10 @@ #undef min #undef max +#ifndef strcasecmp +#define strcasecmp _stricmp +#endif + typedef SOCKET socket_t; #else #include @@ -44,14 +48,17 @@ typedef SOCKET socket_t; #include #include #include +#include typedef int socket_t; +#define INVALID_SOCKET (-1) #endif #include #include #include #include +#include #include #include #include @@ -70,7 +77,6 @@ typedef int socket_t; /* * Configuration */ -#define CPPHTTPLIB_KEEPALIVE_MAX_COUNT 5 #define CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND 5 #define CPPHTTPLIB_KEEPALIVE_TIMEOUT_USECOND 0 @@ -114,6 +120,7 @@ typedef std::multimap MultipartFiles; struct Request { std::string version; std::string method; + std::string target; std::string path; Headers headers; std::string body; @@ -144,7 +151,7 @@ struct Response { std::string get_header_value(const char* key) const; void set_header(const char* key, const char* val); - void set_redirect(const char* url); + 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); @@ -157,6 +164,7 @@ public: 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); @@ -170,6 +178,7 @@ public: 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_; @@ -180,34 +189,45 @@ public: typedef std::function Handler; typedef std::function Logger; - Server(HttpVersion http_version = HttpVersion::v1_0); + Server(); virtual ~Server(); virtual bool is_valid() const; - Server& get(const char* pattern, Handler handler); - Server& post(const char* pattern, Handler handler); + 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 process_request(Stream& strm, bool last_connection, bool& connection_close); - const HttpVersion http_version_; + 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); @@ -218,12 +238,20 @@ private: 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 { @@ -231,34 +259,41 @@ public: Client( const char* host, int port = 80, - size_t timeout_sec = 300, - HttpVersion http_version = HttpVersion::v1_0); + 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 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 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 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 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 process_request(Stream& strm, Request& req, Response& res, bool& connection_close); const std::string host_; const int port_; size_t timeout_sec_; - const HttpVersion http_version_; const std::string host_and_port_; private: @@ -272,22 +307,23 @@ private: #ifdef CPPHTTPLIB_OPENSSL_SUPPORT class SSLSocketStream : public Stream { public: - SSLSocketStream(SSL* ssl); + 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, - HttpVersion http_version = HttpVersion::v1_0); + const char* cert_path, const char* private_key_path); virtual ~SSLServer(); @@ -297,15 +333,15 @@ 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, - HttpVersion http_version = HttpVersion::v1_0); + const char* host, + int port = 80, + size_t timeout_sec = 300); virtual ~SSLClient(); @@ -315,6 +351,7 @@ private: virtual bool read_and_close_socket(socket_t sock, Request& req, Response& res); SSL_CTX* ctx_; + std::mutex ctx_mutex_; }; #endif @@ -323,8 +360,6 @@ private: */ namespace detail { -static std::vector http_version_strings = { "HTTP/1.0", "HTTP/1.1" }; - template void split(const char* b, const char* e, char d, Fn fn) { @@ -433,49 +468,60 @@ inline int select_read(socket_t sock, size_t sec, size_t usec) return select(sock + 1, &fds, NULL, NULL, &tv); } -inline bool is_socket_writable(socket_t sock, size_t sec, size_t usec) +inline bool wait_until_socket_is_ready(socket_t sock, size_t sec, size_t usec) { - fd_set fdsw; - FD_ZERO(&fdsw); - FD_SET(sock, &fdsw); + fd_set fdsr; + FD_ZERO(&fdsr); + FD_SET(sock, &fdsr); - fd_set fdse; - FD_ZERO(&fdse); - FD_SET(sock, &fdse); + auto fdsw = fdsr; + auto fdse = fdsr; timeval tv; tv.tv_sec = sec; tv.tv_usec = usec; - if (select(sock + 1, NULL, &fdsw, &fdse, &tv) <= 0) { + 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 FD_ISSET(sock, &fdsw) != 0; + return true; } template -inline bool read_and_close_socket(socket_t sock, bool keep_alive, T callback) +inline bool read_and_close_socket(socket_t sock, size_t keep_alive_max_count, T callback) { bool ret = false; - if (keep_alive) { - auto count = CPPHTTPLIB_KEEPALIVE_MAX_COUNT; + 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) { - auto last_connection = count == 1; SocketStream strm(sock); - ret = callback(strm, last_connection); - if (!ret) { + 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); - ret = callback(strm, true); + auto dummy_connection_close = false; + ret = callback(strm, true, dummy_connection_close); } close_socket(sock); @@ -515,13 +561,13 @@ socket_t create_socket(const char* host, int port, Fn fn, int socket_flags = 0) auto service = std::to_string(port); if (getaddrinfo(host, service.c_str(), &hints, &result)) { - return -1; + 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 == -1) { + if (sock == INVALID_SOCKET) { continue; } @@ -539,7 +585,7 @@ socket_t create_socket(const char* host, int port, Fn fn, int socket_flags = 0) } freeaddrinfo(result); - return -1; + return INVALID_SOCKET; } inline void set_nonblocking(socket_t sock, bool nonblocking) @@ -562,6 +608,22 @@ inline bool is_connection_error() #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; @@ -670,8 +732,14 @@ 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"; } @@ -722,13 +790,12 @@ inline bool read_headers(Stream& strm, Headers& headers) return true; } -template -bool read_content_with_length(Stream& strm, T& x, size_t len, Progress progress) +inline bool read_content_with_length(Stream& strm, std::string& out, size_t len, Progress progress) { - x.body.assign(len, 0); + out.assign(len, 0); size_t r = 0; while (r < len){ - auto n = strm.read(&x.body[r], len - r); + auto n = strm.read(&out[r], len - r); if (n <= 0) { return false; } @@ -743,8 +810,7 @@ bool read_content_with_length(Stream& strm, T& x, size_t len, Progress progress) return true; } -template -bool read_content_without_length(Stream& strm, T& x) +inline bool read_content_without_length(Stream& strm, std::string& out) { for (;;) { char byte; @@ -754,14 +820,13 @@ bool read_content_without_length(Stream& strm, T& x) } else if (n == 0) { return true; } - x.body += byte; + out += byte; } return true; } -template -bool read_content_chunked(Stream& strm, T& x) +inline bool read_content_chunked(Stream& strm, std::string& out) { const auto bufsiz = 16; char buf[bufsiz]; @@ -775,10 +840,8 @@ bool read_content_chunked(Stream& strm, T& x) auto chunk_len = std::stoi(reader.ptr(), 0, 16); while (chunk_len > 0){ - std::string chunk(chunk_len, 0); - - auto n = strm.read(&chunk[0], chunk_len); - if (n <= 0) { + std::string chunk; + if (!read_content_with_length(strm, chunk, chunk_len, nullptr)) { return false; } @@ -790,7 +853,7 @@ bool read_content_chunked(Stream& strm, T& x) break; } - x.body += chunk; + out += chunk; if (!reader.getline()) { return false; @@ -799,6 +862,12 @@ bool read_content_chunked(Stream& strm, T& x) 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; } @@ -808,14 +877,14 @@ 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, len, progress); + return read_content_with_length(strm, x.body, len, progress); } else { const auto& encoding = get_header_value(x.headers, "Transfer-Encoding", ""); - if (!strcmp(encoding, "chunked")) { - return read_content_chunked(strm, x); + if (!strcasecmp(encoding, "chunked")) { + return read_content_chunked(strm, x.body); } else { - return read_content_without_length(strm, x); + return read_content_without_length(strm, x.body); } } @@ -874,8 +943,12 @@ inline bool is_hex(char c, int& v) return false; } -inline bool from_hex_to_i(const std::string& s, int i, int cnt, int& val) +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]) { @@ -928,9 +1001,9 @@ inline std::string decode_url(const std::string& s) { std::string result; - for (int i = 0; s[i]; i++) { - if (s[i] == '%') { - if (s[i + 1] && s[i + 1] == 'u') { + 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 @@ -997,10 +1070,11 @@ inline bool parse_multipart_formdata( static std::string crlf = "\r\n"; static std::regex re_content_type( - "Content-Type: (.*?)"); + "Content-Type: (.*?)", std::regex_constants::icase); static std::regex re_content_disposition( - "Content-Disposition: form-data; name=\"(.*?)\"(?:; filename=\"(.*?)\")?"); + "Content-Disposition: form-data; name=\"(.*?)\"(?:; filename=\"(.*?)\")?", + std::regex_constants::icase); auto dash_boundary = dash + boundary; @@ -1116,18 +1190,8 @@ inline bool can_compress(const std::string& content_type) { content_type == "application/xhtml+xml"; } -inline void compress(const Request& req, Response& res) +inline void compress(std::string& content) { - // TODO: Server version is HTTP/1.1 and 'Accpet-Encoding' has gzip, not gzip;q=0 - const auto& encodings = req.get_header_value("Accept-Encoding"); - if (encodings.find("gzip") == std::string::npos) { - return; - } - - if (!can_compress(res.get_header_value("Content-Type"))) { - return; - } - z_stream strm; strm.zalloc = Z_NULL; strm.zfree = Z_NULL; @@ -1138,8 +1202,8 @@ inline void compress(const Request& req, Response& res) return; } - strm.avail_in = res.body.size(); - strm.next_in = (Bytef *)res.body.data(); + strm.avail_in = content.size(); + strm.next_in = (Bytef *)content.data(); std::string compressed; @@ -1152,11 +1216,44 @@ inline void compress(const Request& req, Response& res) compressed.append(buff, bufsiz - strm.avail_out); } while (strm.avail_out == 0); - res.set_header("Content-Encoding", "gzip"); - res.body.swap(compressed); + 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 @@ -1320,10 +1417,16 @@ 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(HttpVersion http_version) - : http_version_(http_version) - , svr_sock_(-1) +inline Server::Server() + : keep_alive_max_count_(5) + , is_running_(false) + , svr_sock_(INVALID_SOCKET) + , running_threads_(0) { #ifndef _WIN32 signal(SIGPIPE, SIG_IGN); @@ -1334,18 +1437,36 @@ inline Server::~Server() { } -inline Server& Server::get(const char* pattern, Handler handler) +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) +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)) { @@ -1365,77 +1486,57 @@ 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 (!is_valid()) { + if (bind_internal(host, port, socket_flags) < 0) return false; - } - - svr_sock_ = create_server_socket(host, port, socket_flags); - if (svr_sock_ == -1) { - return false; - } - - auto ret = true; - - for (;;) { - auto val = detail::select_read(svr_sock_, 0, 100000); - - if (val == 0) { // Timeout - if (svr_sock_ == -1) { - // The server socket was closed by 'stop' method. - break; - } - continue; - } - - socket_t sock = accept(svr_sock_, NULL, NULL); - - if (sock == -1) { - if (svr_sock_ != -1) { - detail::close_socket(svr_sock_); - ret = false; - } else { - ; // The server socket was closed by user. - } - break; - } - - // TODO: Use thread pool... - std::thread([=]() { - read_and_close_socket(sock); - }).detach(); - } - - return ret; + return listen_internal(); } inline bool Server::is_running() const { - return svr_sock_ != -1; + return is_running_; } inline void Server::stop() { - detail::shutdown_socket(svr_sock_); - detail::close_socket(svr_sock_); - svr_sock_ = -1; + 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) ([^?]+)(?:\\?(.+?))? (HTTP/1\\.[01])\r\n"); + 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.path = detail::decode_url(m[2]); + req.target = std::string(m[2]); + req.path = detail::decode_url(m[3]); // Parse query text - auto len = std::distance(m[3].first, m[3].second); + auto len = std::distance(m[4].first, m[4].second); if (len > 0) { - detail::parse_query_text(m[3], req.params); + detail::parse_query_text(m[4], req.params); } return true; @@ -1453,19 +1554,26 @@ inline void Server::write_response(Stream& strm, bool last_connection, const Req } // Response line - strm.write_format("%s %d %s\r\n", - detail::http_version_strings[static_cast(http_version_)], + strm.write_format("HTTP/1.1 %d %s\r\n", res.status, detail::status_message(res.status)); // Headers - if (!res.has_header("Connection") && (last_connection || req.version == "HTTP/1.0")) { + 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 - detail::compress(req, res); + // 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")) { @@ -1526,6 +1634,94 @@ inline socket_t Server::create_server_socket(const char* host, int port, int soc }, 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)) { @@ -1536,6 +1732,12 @@ inline bool Server::routing(Request& req, Response& res) 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; } @@ -1554,7 +1756,7 @@ inline bool Server::dispatch_request(Request& req, Response& res, Handlers& hand return false; } -inline bool Server::process_request(Stream& strm, bool last_connection) +inline bool Server::process_request(Stream& strm, bool last_connection, bool& connection_close) { const auto bufsiz = 2048; char buf[bufsiz]; @@ -1569,7 +1771,7 @@ inline bool Server::process_request(Stream& strm, bool last_connection) Request req; Response res; - res.version = detail::http_version_strings[static_cast(http_version_)]; + res.version = "HTTP/1.1"; // Request line and headers if (!parse_request_line(reader.ptr(), req) || !detail::read_headers(strm, req.headers)) { @@ -1580,11 +1782,14 @@ inline bool Server::process_request(Stream& strm, bool last_connection) auto ret = true; if (req.get_header_value("Connection") == "close") { - ret = false; + // ret = false; + connection_close = true; } + req.set_header("REMOTE_ADDR", strm.get_remote_addr().c_str()); + // Body - if (req.method == "POST") { + if (req.method == "POST" || req.method == "PUT") { if (!detail::read_content(strm, req)) { res.status = 400; write_response(strm, last_connection, req, res); @@ -1593,6 +1798,16 @@ inline bool Server::process_request(Stream& strm, bool last_connection) 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")) { @@ -1625,23 +1840,20 @@ inline bool Server::is_valid() const inline bool Server::read_and_close_socket(socket_t sock) { - auto keep_alive = http_version_ == HttpVersion::v1_1; - return detail::read_and_close_socket( sock, - keep_alive, - [this](Stream& strm, bool last_connection) { - return process_request(strm, last_connection); + 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, HttpVersion http_version) + const char* host, int port, size_t timeout_sec) : host_(host) , port_(port) , timeout_sec_(timeout_sec) - , http_version_(http_version) , host_and_port_(host_ + ":" + std::to_string(port_)) { } @@ -1662,13 +1874,16 @@ inline socket_t Client::create_client_socket() const detail::set_nonblocking(sock, true); auto ret = connect(sock, ai.ai_addr, ai.ai_addrlen); - if (ret == -1 && detail::is_connection_error()) { - return false; + 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 detail::is_socket_writable(sock, timeout_sec_, 0); + return true; }); } @@ -1683,11 +1898,12 @@ inline bool Client::read_response_line(Stream& strm, Response& res) return false; } - const static std::regex re("HTTP/1\\.[01] (\\d+?) .+\r\n"); + const static std::regex re("(HTTP/1\\.[01]) (\\d+?) .+\r\n"); std::cmatch m; if (std::regex_match(reader.ptr(), m, re)) { - res.status = std::stoi(std::string(m[1])); + res.version = std::string(m[1]); + res.status = std::stoi(std::string(m[2])); } return true; @@ -1700,7 +1916,7 @@ inline bool Client::send(Request& req, Response& res) } auto sock = create_client_socket(); - if (sock == -1) { + if (sock == INVALID_SOCKET) { return false; } @@ -1712,10 +1928,9 @@ inline void Client::write_request(Stream& strm, Request& req) auto path = detail::encode_url(req.path); // Request line - strm.write_format("%s %s %s\r\n", + strm.write_format("%s %s HTTP/1.1\r\n", req.method.c_str(), - path.c_str(), - detail::http_version_strings[static_cast(http_version_)]); + path.c_str()); // Headers req.set_header("Host", host_and_port_.c_str()); @@ -1728,11 +1943,10 @@ inline void Client::write_request(Stream& strm, Request& req) req.set_header("User-Agent", "cpp-httplib/0.2"); } - // TODO: if (!req.has_header("Connection") && - // (last_connection || http_version_ == detail::HttpVersion::v1_0)) { - if (!req.has_header("Connection")) { - req.set_header("Connection", "close"); - } + // TODO: Support KeepAlive connection + // if (!req.has_header("Connection")) { + req.set_header("Connection", "close"); + // } if (!req.body.empty()) { if (!req.has_header("Content-Type")) { @@ -1756,7 +1970,7 @@ inline void Client::write_request(Stream& strm, Request& req) } } -inline bool Client::process_request(Stream& strm, Request& req, Response& res) +inline bool Client::process_request(Stream& strm, Request& req, Response& res, bool& connection_close) { // Send request write_request(strm, req); @@ -1766,13 +1980,23 @@ inline bool Client::process_request(Stream& strm, Request& req, Response& res) return false; } - // TODO: Check if 'Connection' header is 'close' or HTTP version is 1.0, then close socket... + 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; @@ -1780,17 +2004,20 @@ inline bool Client::process_request(Stream& strm, Request& req, Response& res) inline bool Client::read_and_close_socket(socket_t sock, Request& req, Response& res) { - return detail::read_and_close_socket(sock, false, [&](Stream& strm, bool /*last_connection*/) { - return process_request(strm, req, 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) +inline std::shared_ptr Client::Get(const char* path, Progress progress) { - return get(path, Headers(), progress); + return Get(path, Headers(), progress); } -inline std::shared_ptr Client::get(const char* path, const Headers& headers, Progress progress) +inline std::shared_ptr Client::Get(const char* path, const Headers& headers, Progress progress) { Request req; req.method = "GET"; @@ -1803,12 +2030,12 @@ inline std::shared_ptr Client::get(const char* path, const Headers& he return send(req, *res) ? res : nullptr; } -inline std::shared_ptr Client::head(const char* path) +inline std::shared_ptr Client::Head(const char* path) { - return head(path, Headers()); + return Head(path, Headers()); } -inline std::shared_ptr Client::head(const char* path, const Headers& headers) +inline std::shared_ptr Client::Head(const char* path, const Headers& headers) { Request req; req.method = "HEAD"; @@ -1820,13 +2047,13 @@ inline std::shared_ptr Client::head(const char* path, const Headers& h return send(req, *res) ? res : nullptr; } -inline std::shared_ptr Client::post( +inline std::shared_ptr Client::Post( const char* path, const std::string& body, const char* content_type) { - return post(path, Headers(), body, content_type); + return Post(path, Headers(), body, content_type); } -inline std::shared_ptr Client::post( +inline std::shared_ptr Client::Post( const char* path, const Headers& headers, const std::string& body, const char* content_type) { Request req; @@ -1842,12 +2069,12 @@ inline std::shared_ptr Client::post( return send(req, *res) ? res : nullptr; } -inline std::shared_ptr Client::post(const char* path, const Params& params) +inline std::shared_ptr Client::Post(const char* path, const Params& params) { - return post(path, Headers(), params); + return Post(path, Headers(), params); } -inline std::shared_ptr Client::post(const char* path, const Headers& headers, const Params& 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) { @@ -1859,7 +2086,63 @@ inline std::shared_ptr Client::post(const char* path, const Headers& h query += it->second; } - return post(path, headers, query, "application/x-www-form-urlencoded"); + 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; } /* @@ -1870,13 +2153,21 @@ namespace detail { template inline bool read_and_close_socket_ssl( - socket_t sock, bool keep_alive, - SSL_CTX* ctx, U SSL_connect_or_accept, V setup, - T callback) + 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) { - auto ssl = SSL_new(ctx); - if (!ssl) { - return false; + 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); @@ -1888,28 +2179,38 @@ inline bool read_and_close_socket_ssl( bool ret = false; - if (keep_alive) { - auto count = CPPHTTPLIB_KEEPALIVE_MAX_COUNT; + 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) { + CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND, + CPPHTTPLIB_KEEPALIVE_TIMEOUT_USECOND) > 0) { + SSLSocketStream strm(sock, ssl); auto last_connection = count == 1; - SSLSocketStream strm(ssl); - ret = callback(strm, last_connection); - if (!ret) { + auto connection_close = false; + + ret = callback(strm, last_connection, connection_close); + if (!ret || connection_close) { break; } + count--; } } else { - SSLSocketStream strm(ssl); - ret = callback(strm, true); + SSLSocketStream strm(sock, ssl); + auto dummy_connection_close = false; + ret = callback(strm, true, dummy_connection_close); } SSL_shutdown(ssl); - SSL_free(ssl); + + { + std::lock_guard guard(ctx_mutex); + SSL_free(ssl); + } + close_socket(sock); + return ret; } @@ -1926,7 +2227,8 @@ static SSLInit sslinit_; } // namespace detail // SSL socket stream implementation -inline SSLSocketStream::SSLSocketStream(SSL* ssl): ssl_(ssl) +inline SSLSocketStream::SSLSocketStream(socket_t sock, SSL* ssl) + : sock_(sock), ssl_(ssl) { } @@ -1949,9 +2251,12 @@ 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, HttpVersion http_version) - : Server(http_version) +inline SSLServer::SSLServer(const char* cert_path, const char* private_key_path) { ctx_ = SSL_CTX_new(SSLv23_server_method()); @@ -1987,23 +2292,20 @@ inline bool SSLServer::is_valid() const inline bool SSLServer::read_and_close_socket(socket_t sock) { - auto keep_alive = http_version_ == HttpVersion::v1_1; - return detail::read_and_close_socket_ssl( - sock, - keep_alive, - ctx_, - SSL_accept, - [](SSL* /*ssl*/) {}, - [this](Stream& strm, bool last_connection) { - return process_request(strm, last_connection); - }); + 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, HttpVersion http_version) - : Client(host, port, timeout_sec, http_version) +inline SSLClient::SSLClient(const char* host, int port, size_t timeout_sec) + : Client(host, port, timeout_sec) { ctx_ = SSL_CTX_new(SSLv23_client_method()); } @@ -2023,14 +2325,15 @@ inline bool SSLClient::is_valid() const inline bool SSLClient::read_and_close_socket(socket_t sock, Request& req, Response& res) { return is_valid() && detail::read_and_close_socket_ssl( - sock, false, - ctx_, SSL_connect, - [&](SSL* ssl) { - SSL_set_tlsext_host_name(ssl, host_.c_str()); - }, - [&](Stream& strm, bool /*last_connection*/) { - return process_request(strm, req, res); - }); + 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 diff --git a/src/web_service/web_backend.cpp b/src/web_service/web_backend.cpp index 49b2ed77e..88cb97a81 100644 --- a/src/web_service/web_backend.cpp +++ b/src/web_service/web_backend.cpp @@ -31,14 +31,12 @@ std::unique_ptr GetClientFor(const LUrlParser::clParseURL& pars if (!parsedUrl.GetPort(&port)) { port = HTTP_PORT; } - return std::make_unique(parsedUrl.m_Host.c_str(), port, TIMEOUT_SECONDS, - hl::HttpVersion::v1_1); + return std::make_unique(parsedUrl.m_Host.c_str(), port, TIMEOUT_SECONDS); } else if (parsedUrl.m_Scheme == "https") { if (!parsedUrl.GetPort(&port)) { port = HTTPS_PORT; } - return std::make_unique(parsedUrl.m_Host.c_str(), port, TIMEOUT_SECONDS, - hl::HttpVersion::v1_1); + return std::make_unique(parsedUrl.m_Host.c_str(), port, TIMEOUT_SECONDS); } else { NGLOG_ERROR(WebService, "Bad URL scheme {}", parsedUrl.m_Scheme); return nullptr;