diff --git a/exporters/include/opentelemtry/exporters/common/http/http_client.h b/exporters/include/opentelemtry/exporters/common/http/http_client.h new file mode 100644 index 0000000000..d32a5a556c --- /dev/null +++ b/exporters/include/opentelemtry/exporters/common/http/http_client.h @@ -0,0 +1,316 @@ +#pragma once + +#include "httplib.h" +#include "opentelemetry/sdk/common/http_client.h" + +#include +#include +#include + +#include + +OPENTELEMETRY_BEGIN_NAMESPACE +namespace exporters +{ +namespace common +{ +namespace http +{ + +namespace http_sdk = opentelemetry::sdk::common::http; +using HttpHeaders = std::multimap; + +const http_sdk::HttpStatusCode HTTP_OK = 200; + +class HttpRequest : public http_sdk::HttpRequest +{ + +public: + HttpRequest() : method_(http_sdk::HttpMethod::HTTP_GET), uri_("/") {} + + void setMethod(http_sdk::HttpMethod method) noexcept override { method_ = method; } + + void SetBody(http_sdk::HttpBody &body) noexcept override { body_ = std::move(body); } + + void AddHeader(const http_sdk::HttpHeader &header) noexcept override + { + headers_.insert({header.first, header.second}); + } + + void ReplaceHeader(const http_sdk::HttpHeader &header) noexcept override + { + // erase matching headers + auto range = headers_.equal_range(header.first); + headers_.erase(range.first, range.second); + AddHeader(header); + } + + virtual void setURI(const std::string &uri) noexcept override { uri_ = uri; } + + void SetTimeoutMs(std::chrono::milliseconds timeout_ms) noexcept override + { + _timeout_ms = timeout_ms; + } + +public: + http_sdk::HttpMethod method_; + http_sdk::HttpBody body_; + HttpHeaders headers_; + std::string uri_; + std::chrono::milliseconds _timeout_ms; +}; + +class HttpResponse : public http_sdk::HttpResponse +{ + +public: + HttpResponse() : status_code_(HTTP_OK) {} + + virtual const http_sdk::HttpBody &GetBody() const noexcept override { return body_; } + + virtual bool GetNextHeader(nostd::function_ref callable) const + noexcept override + { + for (const auto &header : headers_) + { + if (!callable(std::make_pair(header.first, header.second))) + { + return false; + } + } + return true; + } + + virtual bool GetNextHeader(const std::string &key, + nostd::function_ref callable) const + noexcept override + { + auto range = headers_.equal_range(key); + for (auto it = range.first; it != range.second; ++it) + { + if (!callable(std::make_pair(it->first, it->second))) + { + return false; + } + } + return true; + } + + virtual http_sdk::HttpStatusCode GetStatusCode() const noexcept override { return status_code_; } + + virtual const std::string &GetErrorMessage() const noexcept override { return error_message_; } + + virtual bool IsSuccess() const noexcept override { return (error_message_.length() == 0); } + +public: + HttpHeaders headers_; + http_sdk::HttpBody body_; + http_sdk::HttpStatusCode status_code_; + std::string error_message_; +}; + +class HttpSessionManager; + +class HttpSession : public http_sdk::HttpSession +{ + +public: + HttpSession(HttpSessionManager &session_manager, std::string host, uint16_t port = 80) + : session_manager_(session_manager), session_state_(http_sdk::HttpSessionState::CREATED) + { + if (host.rfind("http://", 0) != 0 && host.rfind("https://", 0) != 0) + { + host = "http://" + host; // TBD - https support + } + host = host + ":" + std::to_string(port); + httplib_client_.reset(new httplib::Client(host.c_str())); + } + + std::shared_ptr CreateRequest() noexcept override + { + http_request_.reset(new HttpRequest()); + return http_request_; + } + + virtual void SendRequest(http_sdk::HttpResponseHandler &callback) noexcept override + { + HttpResponse res; + if (http_sdk::HttpMethod::HTTP_GET == http_request_->method_) + { + + auto result_future = std::async(std::launch::async, [this, &callback, &res] { + return this->SendGetRequestAsync(callback, res); + }); + } + else + { + auto result_future = std::async(std::launch::async, [this, &callback, &res] { + return this->SendPostRequestAsync(callback, res); + }); + } + // &HttpSession::SendRequestAsync, this, callback); + } + + virtual http_sdk::HttpSessionState GetSessionState() const noexcept override + { + return session_state_; + } + + virtual bool CancelSession() noexcept override + { + // TBD - Not Implemented + return true; + } + + virtual bool FinishSession() noexcept override + { + // TBD - Not Implemented + return true; + } + + void SetId(uint64_t session_id) { session_id_ = session_id; } + +private: + void SendGetRequestAsync(http_sdk::HttpResponseHandler &callback, HttpResponse &res) + { + session_state_ = http_sdk::HttpSessionState::ONGOING; + httplib::Result httplib_res = + httplib_client_->Get(http_request_->uri_.c_str(), http_request_->headers_); + httplib::Error err = httplib_res.error(); + if (err == httplib::Error::Success) + { + res.status_code_ = httplib_res->status; + res.headers_ = std::move(httplib_res->headers); + std::move(httplib_res->body.begin(), httplib_res->body.end(), std::back_inserter(res.body_)); + session_state_ = http_sdk::HttpSessionState::FINISHED; + callback.OnHttpResponse(res); + } + else + { + res.error_message_ = get_error_message(err); + session_state_ = http_sdk::HttpSessionState::FINISHED; + callback.OnHttpResponse(res); + } + } + + void SendPostRequestAsync(http_sdk::HttpResponseHandler &callback, HttpResponse &res) + { + session_state_ = http_sdk::HttpSessionState::ONGOING; + std::string body(http_request_->body_.begin(), http_request_->body_.end()); + // find content type from headers; + auto search = http_request_->headers_.find("Content-Type"); + std::string content_type; + if (search != http_request_->headers_.end()) + { + content_type = search->second; + } + else + { + content_type = "application/json"; // defaults + } + httplib::Result httplib_res = + httplib_client_->Post(http_request_->uri_.c_str(), std::move(body), content_type.c_str()); + httplib::Error err = httplib_res.error(); + if (err == httplib::Error::Success) + { + + res.status_code_ = httplib_res->status; + res.headers_ = std::move(httplib_res->headers); + std::move(httplib_res->body.begin(), httplib_res->body.end(), std::back_inserter(res.body_)); + session_state_ = http_sdk::HttpSessionState::FINISHED; + callback.OnHttpResponse(res); + } + else + { + res.error_message_ = get_error_message(err); + session_state_ = http_sdk::HttpSessionState::FINISHED; + callback.OnHttpResponse(res); + } + } + + std::string get_error_message(httplib::Error err) + { + switch (err) + { + case httplib::Error::Unknown: + return "Unknown error"; + case httplib::Error::Connection: + return "Connection error"; + case httplib::Error::BindIPAddress: + return "Bind IP address error"; + case httplib::Error::Read: + return "Read error"; + case httplib::Error::Write: + return "Write error"; + case httplib::ExceedRedirectCount: + return "Redirect Count Exceeded error"; + case httplib::Canceled: + return "Cancelled Error"; + case httplib::SSLConnection: + return "SSL Connection error"; + case httplib::SSLLoadingCerts: + return "SSL Certificate loading error"; + case httplib::SSLServerVerification: + return "SSL Server Verification error"; + case httplib::UnsupportedMultipartBoundaryChars: + return "Unsupported Multiple Boundary Characters"; + default: + return "Unknown error"; + } + } + +private: + std::shared_ptr http_request_; + http_sdk::HttpSessionState session_state_; + uint64_t session_id_; + HttpSessionManager &session_manager_; + std::unique_ptr httplib_client_; +}; + +class HttpSessionManager : public http_sdk::HttpSessionManager +{ + +public: + std::shared_ptr createHttpSession(std::string host, + uint16_t port = 80) noexcept override + { + auto session = std::make_shared(*this, host, port); + auto session_id = ++next_session_id_; + session->SetId(session_id); + sessions_.insert({session_id, session}); + return session; + } + + bool CancelAllSessions() noexcept override + { + for (auto &session : sessions_) + { + session.second->CancelSession(); + } + return true; + } + + bool FinishAllSessions() noexcept override + { + for (auto &session : sessions_) + { + session.second->FinishSession(); + } + return true; + } + + void CleanupSession(uint64_t session_id) + { + // TBD = Need to be thread safe + sessions_.erase(session_id); + } + +private: + std::atomic next_session_id_; + std::map> sessions_; +}; + +} // namespace http +} // namespace common +} // namespace exporters +OPENTELEMETRY_END_NAMESPACE diff --git a/exporters/include/opentelemtry/exporters/common/http/httplib.h b/exporters/include/opentelemtry/exporters/common/http/httplib.h new file mode 100644 index 0000000000..977e53b3d0 --- /dev/null +++ b/exporters/include/opentelemtry/exporters/common/http/httplib.h @@ -0,0 +1,8140 @@ +// +// httplib.h +// +// Copyright (c) 2020 Yuji Hirose. All rights reserved. +// MIT License +// + +#ifndef CPPHTTPLIB_HTTPLIB_H +#define CPPHTTPLIB_HTTPLIB_H + +/* + * Configuration + */ + +#ifndef CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND +# define CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND 5 +#endif + +#ifndef CPPHTTPLIB_KEEPALIVE_MAX_COUNT +# define CPPHTTPLIB_KEEPALIVE_MAX_COUNT 5 +#endif + +#ifndef CPPHTTPLIB_CONNECTION_TIMEOUT_SECOND +# define CPPHTTPLIB_CONNECTION_TIMEOUT_SECOND 300 +#endif + +#ifndef CPPHTTPLIB_CONNECTION_TIMEOUT_USECOND +# define CPPHTTPLIB_CONNECTION_TIMEOUT_USECOND 0 +#endif + +#ifndef CPPHTTPLIB_READ_TIMEOUT_SECOND +# define CPPHTTPLIB_READ_TIMEOUT_SECOND 5 +#endif + +#ifndef CPPHTTPLIB_READ_TIMEOUT_USECOND +# define CPPHTTPLIB_READ_TIMEOUT_USECOND 0 +#endif + +#ifndef CPPHTTPLIB_WRITE_TIMEOUT_SECOND +# define CPPHTTPLIB_WRITE_TIMEOUT_SECOND 5 +#endif + +#ifndef CPPHTTPLIB_WRITE_TIMEOUT_USECOND +# define CPPHTTPLIB_WRITE_TIMEOUT_USECOND 0 +#endif + +#ifndef CPPHTTPLIB_IDLE_INTERVAL_SECOND +# define CPPHTTPLIB_IDLE_INTERVAL_SECOND 0 +#endif + +#ifndef CPPHTTPLIB_IDLE_INTERVAL_USECOND +# ifdef _WIN32 +# define CPPHTTPLIB_IDLE_INTERVAL_USECOND 10000 +# else +# define CPPHTTPLIB_IDLE_INTERVAL_USECOND 0 +# endif +#endif + +#ifndef CPPHTTPLIB_REQUEST_URI_MAX_LENGTH +# define CPPHTTPLIB_REQUEST_URI_MAX_LENGTH 8192 +#endif + +#ifndef CPPHTTPLIB_REDIRECT_MAX_COUNT +# define CPPHTTPLIB_REDIRECT_MAX_COUNT 20 +#endif + +#ifndef CPPHTTPLIB_PAYLOAD_MAX_LENGTH +# define CPPHTTPLIB_PAYLOAD_MAX_LENGTH ((std::numeric_limits::max)()) +#endif + +#ifndef CPPHTTPLIB_TCP_NODELAY +# define CPPHTTPLIB_TCP_NODELAY false +#endif + +#ifndef CPPHTTPLIB_RECV_BUFSIZ +# define CPPHTTPLIB_RECV_BUFSIZ size_t(4096u) +#endif + +#ifndef CPPHTTPLIB_COMPRESSION_BUFSIZ +# define CPPHTTPLIB_COMPRESSION_BUFSIZ size_t(16384u) +#endif + +#ifndef CPPHTTPLIB_THREAD_POOL_COUNT +# define CPPHTTPLIB_THREAD_POOL_COUNT \ + ((std::max)(8u, std::thread::hardware_concurrency() > 0 \ + ? std::thread::hardware_concurrency() - 1 \ + : 0)) +#endif + +/* + * Headers + */ + +#ifdef _WIN32 +# ifndef _CRT_SECURE_NO_WARNINGS +# define _CRT_SECURE_NO_WARNINGS +# endif //_CRT_SECURE_NO_WARNINGS + +# ifndef _CRT_NONSTDC_NO_DEPRECATE +# define _CRT_NONSTDC_NO_DEPRECATE +# endif //_CRT_NONSTDC_NO_DEPRECATE + +# if defined(_MSC_VER) +# ifdef _WIN64 +using ssize_t = __int64; +# else +using ssize_t = int; +# endif + +# if _MSC_VER < 1900 +# define snprintf _snprintf_s +# endif +# endif // _MSC_VER + +# ifndef S_ISREG +# define S_ISREG(m) (((m)&S_IFREG) == S_IFREG) +# endif // S_ISREG + +# ifndef S_ISDIR +# define S_ISDIR(m) (((m)&S_IFDIR) == S_IFDIR) +# endif // S_ISDIR + +# ifndef NOMINMAX +# define NOMINMAX +# endif // NOMINMAX + +# include +# include + +# include +# include + +# ifndef WSA_FLAG_NO_HANDLE_INHERIT +# define WSA_FLAG_NO_HANDLE_INHERIT 0x80 +# endif + +# ifdef _MSC_VER +# pragma comment(lib, "ws2_32.lib") +# pragma comment(lib, "crypt32.lib") +# pragma comment(lib, "cryptui.lib") +# endif + +# ifndef strcasecmp +# define strcasecmp _stricmp +# endif // strcasecmp + +using socket_t = SOCKET; +# ifdef CPPHTTPLIB_USE_POLL +# define poll(fds, nfds, timeout) WSAPoll(fds, nfds, timeout) +# endif + +#else // not _WIN32 + +# include +# include +# include +# include +# include +# ifdef __linux__ +# include +# endif +# include +# ifdef CPPHTTPLIB_USE_POLL +# include +# endif +# include +# include +# include +# include +# include + +using socket_t = int; +# define INVALID_SOCKET (-1) +#endif //_WIN32 + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT +# include +# include +# include +# include + +# if defined(_WIN32) && defined(OPENSSL_USE_APPLINK) +# include +# endif + +# include +# include +# include + +# if OPENSSL_VERSION_NUMBER < 0x1010100fL +# error Sorry, OpenSSL versions prior to 1.1.1 are not supported +# endif + +# if OPENSSL_VERSION_NUMBER < 0x10100000L +# include +inline const unsigned char *ASN1_STRING_get0_data(const ASN1_STRING *asn1) +{ + return M_ASN1_STRING_data(asn1); +} +# endif +#endif + +#ifdef CPPHTTPLIB_ZLIB_SUPPORT +# include +#endif + +#ifdef CPPHTTPLIB_BROTLI_SUPPORT +# include +# include +#endif + +/* + * Declaration + */ +namespace httplib +{ + +namespace detail +{ + +/* + * Backport std::make_unique from C++14. + * + * NOTE: This code came up with the following stackoverflow post: + * https://stackoverflow.com/questions/10149840/c-arrays-and-make-unique + * + */ + +template +typename std::enable_if::value, std::unique_ptr>::type make_unique( + Args &&... args) +{ + return std::unique_ptr(new T(std::forward(args)...)); +} + +template +typename std::enable_if::value, std::unique_ptr>::type make_unique( + std::size_t n) +{ + typedef typename std::remove_extent::type RT; + return std::unique_ptr(new RT[n]); +} + +struct ci +{ + bool operator()(const std::string &s1, const std::string &s2) const + { + return std::lexicographical_compare( + s1.begin(), s1.end(), s2.begin(), s2.end(), + [](char c1, char c2) { return ::tolower(c1) < ::tolower(c2); }); + } +}; + +} // namespace detail + +using Headers = std::multimap; + +using Params = std::multimap; +using Match = std::smatch; + +using Progress = std::function; + +struct Response; +using ResponseHandler = std::function; + +struct MultipartFormData +{ + std::string name; + std::string content; + std::string filename; + std::string content_type; +}; +using MultipartFormDataItems = std::vector; +using MultipartFormDataMap = std::multimap; + +class DataSink +{ +public: + DataSink() : os(&sb_), sb_(*this) {} + + DataSink(const DataSink &) = delete; + DataSink &operator=(const DataSink &) = delete; + DataSink(DataSink &&) = delete; + DataSink &operator=(DataSink &&) = delete; + + std::function write; + std::function done; + std::function is_writable; + std::ostream os; + +private: + class data_sink_streambuf : public std::streambuf + { + public: + explicit data_sink_streambuf(DataSink &sink) : sink_(sink) {} + + protected: + std::streamsize xsputn(const char *s, std::streamsize n) + { + sink_.write(s, static_cast(n)); + return n; + } + + private: + DataSink &sink_; + }; + + data_sink_streambuf sb_; +}; + +using ContentProvider = std::function; + +using ContentProviderWithoutLength = std::function; + +using ContentReceiver = std::function; + +using MultipartContentHeader = std::function; + +class ContentReader +{ +public: + using Reader = std::function; + using MultipartReader = + std::function; + + ContentReader(Reader reader, MultipartReader multipart_reader) + : reader_(std::move(reader)), multipart_reader_(std::move(multipart_reader)) + {} + + bool operator()(MultipartContentHeader header, ContentReceiver receiver) const + { + return multipart_reader_(std::move(header), std::move(receiver)); + } + + bool operator()(ContentReceiver receiver) const { return reader_(std::move(receiver)); } + + Reader reader_; + MultipartReader multipart_reader_; +}; + +using Range = std::pair; +using Ranges = std::vector; + +struct Request +{ + std::string method; + std::string path; + Headers headers; + std::string body; + + std::string remote_addr; + int remote_port = -1; + + // for server + std::string version; + std::string target; + Params params; + MultipartFormDataMap files; + Ranges ranges; + Match matches; + + // for client + size_t redirect_count = CPPHTTPLIB_REDIRECT_MAX_COUNT; + ResponseHandler response_handler; + ContentReceiver content_receiver; + size_t content_length = 0; + ContentProvider content_provider; + Progress progress; + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + const SSL *ssl; +#endif + + bool has_header(const char *key) const; + std::string get_header_value(const char *key, size_t id = 0) const; + template + T get_header_value(const char *key, size_t id = 0) const; + size_t get_header_value_count(const char *key) const; + void set_header(const char *key, const char *val); + void set_header(const char *key, const std::string &val); + + bool has_param(const char *key) const; + std::string get_param_value(const char *key, size_t id = 0) const; + size_t get_param_value_count(const char *key) const; + + bool is_multipart_form_data() const; + + bool has_file(const char *key) const; + MultipartFormData get_file_value(const char *key) const; + + // private members... + size_t authorization_count_ = 0; +}; + +struct Response +{ + std::string version; + int status = -1; + std::string reason; + Headers headers; + std::string body; + + bool has_header(const char *key) const; + std::string get_header_value(const char *key, size_t id = 0) const; + template + T get_header_value(const char *key, size_t id = 0) const; + size_t get_header_value_count(const char *key) const; + void set_header(const char *key, const char *val); + void set_header(const char *key, const std::string &val); + + void set_redirect(const char *url, int status = 302); + void set_redirect(const std::string &url, int status = 302); + void set_content(const char *s, size_t n, const char *content_type); + void set_content(std::string s, const char *content_type); + + void set_content_provider(size_t length, + const char *content_type, + ContentProvider provider, + const std::function &resource_releaser = nullptr); + + void set_content_provider(const char *content_type, + ContentProviderWithoutLength provider, + const std::function &resource_releaser = nullptr); + + void set_chunked_content_provider(const char *content_type, + ContentProviderWithoutLength provider, + const std::function &resource_releaser = nullptr); + + Response() = default; + Response(const Response &) = default; + Response &operator=(const Response &) = default; + Response(Response &&) = default; + Response &operator=(Response &&) = default; + ~Response() + { + if (content_provider_resource_releaser_) + { + content_provider_resource_releaser_(); + } + } + + // private members... + size_t content_length_ = 0; + ContentProvider content_provider_; + std::function content_provider_resource_releaser_; + bool is_chunked_content_provider = false; +}; + +class Stream +{ +public: + virtual ~Stream() = default; + + virtual bool is_readable() const = 0; + virtual bool is_writable() const = 0; + + virtual ssize_t read(char *ptr, size_t size) = 0; + virtual ssize_t write(const char *ptr, size_t size) = 0; + virtual void get_remote_ip_and_port(std::string &ip, int &port) const = 0; + + template + ssize_t write_format(const char *fmt, const Args &... args); + ssize_t write(const char *ptr); + ssize_t write(const std::string &s); +}; + +class TaskQueue +{ +public: + TaskQueue() = default; + virtual ~TaskQueue() = default; + + virtual void enqueue(std::function fn) = 0; + virtual void shutdown() = 0; + + virtual void on_idle(){}; +}; + +class ThreadPool : public TaskQueue +{ +public: + explicit ThreadPool(size_t n) : shutdown_(false) + { + while (n) + { + threads_.emplace_back(worker(*this)); + n--; + } + } + + ThreadPool(const ThreadPool &) = delete; + ~ThreadPool() override = default; + + void enqueue(std::function fn) override + { + std::unique_lock lock(mutex_); + jobs_.push_back(std::move(fn)); + cond_.notify_one(); + } + + void shutdown() override + { + // Stop all worker threads... + { + std::unique_lock lock(mutex_); + shutdown_ = true; + } + + cond_.notify_all(); + + // Join... + for (auto &t : threads_) + { + t.join(); + } + } + +private: + struct worker + { + explicit worker(ThreadPool &pool) : pool_(pool) {} + + void operator()() + { + for (;;) + { + std::function fn; + { + std::unique_lock lock(pool_.mutex_); + + pool_.cond_.wait(lock, [&] { return !pool_.jobs_.empty() || pool_.shutdown_; }); + + if (pool_.shutdown_ && pool_.jobs_.empty()) + { + break; + } + + fn = pool_.jobs_.front(); + pool_.jobs_.pop_front(); + } + + assert(true == static_cast(fn)); + fn(); + } + } + + ThreadPool &pool_; + }; + friend struct worker; + + std::vector threads_; + std::list> jobs_; + + bool shutdown_; + + std::condition_variable cond_; + std::mutex mutex_; +}; + +using Logger = std::function; + +using SocketOptions = std::function; + +inline void default_socket_options(socket_t sock) +{ + int yes = 1; +#ifdef _WIN32 + setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, reinterpret_cast(&yes), sizeof(yes)); + setsockopt(sock, SOL_SOCKET, SO_EXCLUSIVEADDRUSE, reinterpret_cast(&yes), sizeof(yes)); +#else +# ifdef SO_REUSEPORT + setsockopt(sock, SOL_SOCKET, SO_REUSEPORT, reinterpret_cast(&yes), sizeof(yes)); +# else + setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, reinterpret_cast(&yes), sizeof(yes)); +# endif +#endif +} + +class Server +{ +public: + using Handler = std::function; + using HandlerWithContentReader = + std::function; + using Expect100ContinueHandler = std::function; + + Server(); + + virtual ~Server(); + + virtual bool is_valid() const; + + Server &Get(const char *pattern, Handler handler); + Server &Post(const char *pattern, Handler handler); + Server &Post(const char *pattern, HandlerWithContentReader handler); + Server &Put(const char *pattern, Handler handler); + Server &Put(const char *pattern, HandlerWithContentReader handler); + Server &Patch(const char *pattern, Handler handler); + Server &Patch(const char *pattern, HandlerWithContentReader handler); + Server &Delete(const char *pattern, Handler handler); + Server &Delete(const char *pattern, HandlerWithContentReader handler); + Server &Options(const char *pattern, Handler handler); + + bool set_base_dir(const char *dir, const char *mount_point = nullptr); + bool set_mount_point(const char *mount_point, const char *dir, Headers headers = Headers()); + bool remove_mount_point(const char *mount_point); + void set_file_extension_and_mimetype_mapping(const char *ext, const char *mime); + void set_file_request_handler(Handler handler); + + void set_error_handler(Handler handler); + void set_expect_100_continue_handler(Expect100ContinueHandler handler); + void set_logger(Logger logger); + + void set_tcp_nodelay(bool on); + void set_socket_options(SocketOptions socket_options); + + void set_keep_alive_max_count(size_t count); + void set_keep_alive_timeout(time_t sec); + void set_read_timeout(time_t sec, time_t usec = 0); + void set_write_timeout(time_t sec, time_t usec = 0); + void set_idle_interval(time_t sec, time_t usec = 0); + + void set_payload_max_length(size_t length); + + bool bind_to_port(const char *host, int port, int socket_flags = 0); + 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(); + + std::function new_task_queue; + +protected: + bool process_request(Stream &strm, + bool close_connection, + bool &connection_closed, + const std::function &setup_request); + + std::atomic svr_sock_; + size_t keep_alive_max_count_ = CPPHTTPLIB_KEEPALIVE_MAX_COUNT; + time_t keep_alive_timeout_sec_ = CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND; + time_t read_timeout_sec_ = CPPHTTPLIB_READ_TIMEOUT_SECOND; + time_t read_timeout_usec_ = CPPHTTPLIB_READ_TIMEOUT_USECOND; + time_t write_timeout_sec_ = CPPHTTPLIB_WRITE_TIMEOUT_SECOND; + time_t write_timeout_usec_ = CPPHTTPLIB_WRITE_TIMEOUT_USECOND; + time_t idle_interval_sec_ = CPPHTTPLIB_IDLE_INTERVAL_SECOND; + time_t idle_interval_usec_ = CPPHTTPLIB_IDLE_INTERVAL_USECOND; + size_t payload_max_length_ = CPPHTTPLIB_PAYLOAD_MAX_LENGTH; + +private: + using Handlers = std::vector>; + using HandlersForContentReader = std::vector>; + + socket_t create_server_socket(const char *host, + int port, + int socket_flags, + SocketOptions socket_options) const; + int bind_internal(const char *host, int port, int socket_flags); + bool listen_internal(); + + bool routing(Request &req, Response &res, Stream &strm); + bool handle_file_request(Request &req, Response &res, bool head = false); + bool dispatch_request(Request &req, Response &res, const Handlers &handlers); + bool dispatch_request_for_content_reader(Request &req, + Response &res, + ContentReader content_reader, + const HandlersForContentReader &handlers); + + bool parse_request_line(const char *s, Request &req); + bool write_response(Stream &strm, bool close_connection, const Request &req, Response &res); + bool write_content_with_provider(Stream &strm, + const Request &req, + Response &res, + const std::string &boundary, + const std::string &content_type); + bool read_content(Stream &strm, Request &req, Response &res); + bool read_content_with_content_receiver(Stream &strm, + Request &req, + Response &res, + ContentReceiver receiver, + MultipartContentHeader multipart_header, + ContentReceiver multipart_receiver); + bool read_content_core(Stream &strm, + Request &req, + Response &res, + ContentReceiver receiver, + MultipartContentHeader mulitpart_header, + ContentReceiver multipart_receiver); + + virtual bool process_and_close_socket(socket_t sock); + + struct MountPointEntry + { + std::string mount_point; + std::string base_dir; + Headers headers; + }; + std::vector base_dirs_; + + std::atomic is_running_; + std::map file_extension_and_mimetype_map_; + Handler file_request_handler_; + Handlers get_handlers_; + Handlers post_handlers_; + HandlersForContentReader post_handlers_for_content_reader_; + Handlers put_handlers_; + HandlersForContentReader put_handlers_for_content_reader_; + Handlers patch_handlers_; + HandlersForContentReader patch_handlers_for_content_reader_; + Handlers delete_handlers_; + HandlersForContentReader delete_handlers_for_content_reader_; + Handlers options_handlers_; + Handler error_handler_; + Logger logger_; + Expect100ContinueHandler expect_100_continue_handler_; + + bool tcp_nodelay_ = CPPHTTPLIB_TCP_NODELAY; + SocketOptions socket_options_ = default_socket_options; +}; + +enum Error +{ + Success = 0, + Unknown, + Connection, + BindIPAddress, + Read, + Write, + ExceedRedirectCount, + Canceled, + SSLConnection, + SSLLoadingCerts, + SSLServerVerification, + UnsupportedMultipartBoundaryChars +}; + +class Result +{ +public: + Result(std::unique_ptr res, Error err) : res_(std::move(res)), err_(err) {} + operator bool() const { return res_ != nullptr; } + bool operator==(std::nullptr_t) const { return res_ == nullptr; } + bool operator!=(std::nullptr_t) const { return res_ != nullptr; } + const Response &value() const { return *res_; } + const Response &operator*() const { return *res_; } + const Response *operator->() const { return res_.get(); } + Error error() const { return err_; } + +private: + std::unique_ptr res_; + Error err_; +}; + +class ClientImpl +{ +public: + explicit ClientImpl(const std::string &host); + + explicit ClientImpl(const std::string &host, int port); + + explicit ClientImpl(const std::string &host, + int port, + const std::string &client_cert_path, + const std::string &client_key_path); + + virtual ~ClientImpl(); + + virtual bool is_valid() const; + + Result Get(const char *path); + Result Get(const char *path, const Headers &headers); + Result Get(const char *path, Progress progress); + Result Get(const char *path, const Headers &headers, Progress progress); + Result Get(const char *path, ContentReceiver content_receiver); + Result Get(const char *path, const Headers &headers, ContentReceiver content_receiver); + Result Get(const char *path, ContentReceiver content_receiver, Progress progress); + Result Get(const char *path, + const Headers &headers, + ContentReceiver content_receiver, + Progress progress); + Result Get(const char *path, ResponseHandler response_handler, ContentReceiver content_receiver); + Result Get(const char *path, + const Headers &headers, + ResponseHandler response_handler, + ContentReceiver content_receiver); + Result Get(const char *path, + ResponseHandler response_handler, + ContentReceiver content_receiver, + Progress progress); + Result Get(const char *path, + const Headers &headers, + ResponseHandler response_handler, + ContentReceiver content_receiver, + Progress progress); + + Result Head(const char *path); + Result Head(const char *path, const Headers &headers); + + Result Post(const char *path); + Result Post(const char *path, const std::string &body, const char *content_type); + Result Post(const char *path, + const Headers &headers, + const std::string &body, + const char *content_type); + Result Post(const char *path, + size_t content_length, + ContentProvider content_provider, + const char *content_type); + Result Post(const char *path, + const Headers &headers, + size_t content_length, + ContentProvider content_provider, + const char *content_type); + Result Post(const char *path, const Params ¶ms); + Result Post(const char *path, const Headers &headers, const Params ¶ms); + Result Post(const char *path, const MultipartFormDataItems &items); + Result Post(const char *path, const Headers &headers, const MultipartFormDataItems &items); + Result Post(const char *path, + const Headers &headers, + const MultipartFormDataItems &items, + const std::string &boundary); + + Result Put(const char *path); + Result Put(const char *path, const std::string &body, const char *content_type); + Result Put(const char *path, + const Headers &headers, + const std::string &body, + const char *content_type); + Result Put(const char *path, + size_t content_length, + ContentProvider content_provider, + const char *content_type); + Result Put(const char *path, + const Headers &headers, + size_t content_length, + ContentProvider content_provider, + const char *content_type); + Result Put(const char *path, const Params ¶ms); + Result Put(const char *path, const Headers &headers, const Params ¶ms); + + Result Patch(const char *path, const std::string &body, const char *content_type); + Result Patch(const char *path, + const Headers &headers, + const std::string &body, + const char *content_type); + Result Patch(const char *path, + size_t content_length, + ContentProvider content_provider, + const char *content_type); + Result Patch(const char *path, + const Headers &headers, + size_t content_length, + ContentProvider content_provider, + const char *content_type); + + Result Delete(const char *path); + Result Delete(const char *path, const std::string &body, const char *content_type); + Result Delete(const char *path, const Headers &headers); + Result Delete(const char *path, + const Headers &headers, + const std::string &body, + const char *content_type); + + Result Options(const char *path); + Result Options(const char *path, const Headers &headers); + + bool send(const Request &req, Response &res); + + size_t is_socket_open() const; + + void stop(); + + void set_default_headers(Headers headers); + + void set_tcp_nodelay(bool on); + void set_socket_options(SocketOptions socket_options); + + void set_connection_timeout(time_t sec, time_t usec = 0); + void set_read_timeout(time_t sec, time_t usec = 0); + void set_write_timeout(time_t sec, time_t usec = 0); + + void set_basic_auth(const char *username, const char *password); + void set_bearer_token_auth(const char *token); +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + void set_digest_auth(const char *username, const char *password); +#endif + + void set_keep_alive(bool on); + void set_follow_location(bool on); + + void set_compress(bool on); + + void set_decompress(bool on); + + void set_interface(const char *intf); + + void set_proxy(const char *host, int port); + void set_proxy_basic_auth(const char *username, const char *password); + void set_proxy_bearer_token_auth(const char *token); +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + void set_proxy_digest_auth(const char *username, const char *password); +#endif + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + void enable_server_certificate_verification(bool enabled); +#endif + + void set_logger(Logger logger); + +protected: + struct Socket + { + socket_t sock = INVALID_SOCKET; +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + SSL *ssl = nullptr; +#endif + + bool is_open() const { return sock != INVALID_SOCKET; } + }; + + virtual bool create_and_connect_socket(Socket &socket); + virtual void close_socket(Socket &socket, bool process_socket_ret); + + bool process_request(Stream &strm, const Request &req, Response &res, bool close_connection); + + Error get_last_error() const; + + void copy_settings(const ClientImpl &rhs); + + // Error state + mutable Error error_ = Error::Success; + + // Socket endoint information + const std::string host_; + const int port_; + const std::string host_and_port_; + + // Current open socket + Socket socket_; + mutable std::mutex socket_mutex_; + std::recursive_mutex request_mutex_; + + // Default headers + Headers default_headers_; + + // Settings + std::string client_cert_path_; + std::string client_key_path_; + + time_t connection_timeout_sec_ = CPPHTTPLIB_CONNECTION_TIMEOUT_SECOND; + time_t connection_timeout_usec_ = CPPHTTPLIB_CONNECTION_TIMEOUT_USECOND; + time_t read_timeout_sec_ = CPPHTTPLIB_READ_TIMEOUT_SECOND; + time_t read_timeout_usec_ = CPPHTTPLIB_READ_TIMEOUT_USECOND; + time_t write_timeout_sec_ = CPPHTTPLIB_WRITE_TIMEOUT_SECOND; + time_t write_timeout_usec_ = CPPHTTPLIB_WRITE_TIMEOUT_USECOND; + + std::string basic_auth_username_; + std::string basic_auth_password_; + std::string bearer_token_auth_token_; +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + std::string digest_auth_username_; + std::string digest_auth_password_; +#endif + + bool keep_alive_ = false; + bool follow_location_ = false; + + bool tcp_nodelay_ = CPPHTTPLIB_TCP_NODELAY; + SocketOptions socket_options_ = nullptr; + + bool compress_ = false; + bool decompress_ = true; + + std::string interface_; + + std::string proxy_host_; + int proxy_port_ = -1; + + std::string proxy_basic_auth_username_; + std::string proxy_basic_auth_password_; + std::string proxy_bearer_token_auth_token_; +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + std::string proxy_digest_auth_username_; + std::string proxy_digest_auth_password_; +#endif + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + bool server_certificate_verification_ = true; +#endif + + Logger logger_; + +private: + socket_t create_client_socket() const; + bool read_response_line(Stream &strm, Response &res); + bool write_request(Stream &strm, const Request &req, bool close_connection); + bool redirect(const Request &req, Response &res); + bool handle_request(Stream &strm, const Request &req, Response &res, bool close_connection); + void stop_core(); + std::unique_ptr send_with_content_provider(const char *method, + const char *path, + const Headers &headers, + const std::string &body, + size_t content_length, + ContentProvider content_provider, + const char *content_type); + + virtual bool process_socket(Socket &socket, std::function callback); + virtual bool is_ssl() const; +}; + +class Client +{ +public: + // Universal interface + explicit Client(const char *scheme_host_port); + + explicit Client(const char *scheme_host_port, + const std::string &client_cert_path, + const std::string &client_key_path); + + // HTTP only interface + explicit Client(const std::string &host, int port); + + explicit Client(const std::string &host, + int port, + const std::string &client_cert_path, + const std::string &client_key_path); + + ~Client(); + + bool is_valid() const; + + Result Get(const char *path); + Result Get(const char *path, const Headers &headers); + Result Get(const char *path, Progress progress); + Result Get(const char *path, const Headers &headers, Progress progress); + Result Get(const char *path, ContentReceiver content_receiver); + Result Get(const char *path, const Headers &headers, ContentReceiver content_receiver); + Result Get(const char *path, ContentReceiver content_receiver, Progress progress); + Result Get(const char *path, + const Headers &headers, + ContentReceiver content_receiver, + Progress progress); + Result Get(const char *path, ResponseHandler response_handler, ContentReceiver content_receiver); + Result Get(const char *path, + const Headers &headers, + ResponseHandler response_handler, + ContentReceiver content_receiver); + Result Get(const char *path, + const Headers &headers, + ResponseHandler response_handler, + ContentReceiver content_receiver, + Progress progress); + Result Get(const char *path, + ResponseHandler response_handler, + ContentReceiver content_receiver, + Progress progress); + + Result Head(const char *path); + Result Head(const char *path, const Headers &headers); + + Result Post(const char *path); + Result Post(const char *path, const std::string &body, const char *content_type); + Result Post(const char *path, + const Headers &headers, + const std::string &body, + const char *content_type); + Result Post(const char *path, + size_t content_length, + ContentProvider content_provider, + const char *content_type); + Result Post(const char *path, + const Headers &headers, + size_t content_length, + ContentProvider content_provider, + const char *content_type); + Result Post(const char *path, const Params ¶ms); + Result Post(const char *path, const Headers &headers, const Params ¶ms); + Result Post(const char *path, const MultipartFormDataItems &items); + Result Post(const char *path, const Headers &headers, const MultipartFormDataItems &items); + Result Post(const char *path, + const Headers &headers, + const MultipartFormDataItems &items, + const std::string &boundary); + Result Put(const char *path); + Result Put(const char *path, const std::string &body, const char *content_type); + Result Put(const char *path, + const Headers &headers, + const std::string &body, + const char *content_type); + Result Put(const char *path, + size_t content_length, + ContentProvider content_provider, + const char *content_type); + Result Put(const char *path, + const Headers &headers, + size_t content_length, + ContentProvider content_provider, + const char *content_type); + Result Put(const char *path, const Params ¶ms); + Result Put(const char *path, const Headers &headers, const Params ¶ms); + Result Patch(const char *path, const std::string &body, const char *content_type); + Result Patch(const char *path, + const Headers &headers, + const std::string &body, + const char *content_type); + Result Patch(const char *path, + size_t content_length, + ContentProvider content_provider, + const char *content_type); + Result Patch(const char *path, + const Headers &headers, + size_t content_length, + ContentProvider content_provider, + const char *content_type); + + Result Delete(const char *path); + Result Delete(const char *path, const std::string &body, const char *content_type); + Result Delete(const char *path, const Headers &headers); + Result Delete(const char *path, + const Headers &headers, + const std::string &body, + const char *content_type); + + Result Options(const char *path); + Result Options(const char *path, const Headers &headers); + + bool send(const Request &req, Response &res); + + size_t is_socket_open() const; + + void stop(); + + void set_default_headers(Headers headers); + + void set_tcp_nodelay(bool on); + void set_socket_options(SocketOptions socket_options); + + void set_connection_timeout(time_t sec, time_t usec = 0); + void set_read_timeout(time_t sec, time_t usec = 0); + void set_write_timeout(time_t sec, time_t usec = 0); + + void set_basic_auth(const char *username, const char *password); + void set_bearer_token_auth(const char *token); +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + void set_digest_auth(const char *username, const char *password); +#endif + + void set_keep_alive(bool on); + void set_follow_location(bool on); + + void set_compress(bool on); + + void set_decompress(bool on); + + void set_interface(const char *intf); + + void set_proxy(const char *host, int port); + void set_proxy_basic_auth(const char *username, const char *password); + void set_proxy_bearer_token_auth(const char *token); +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + void set_proxy_digest_auth(const char *username, const char *password); +#endif + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + void enable_server_certificate_verification(bool enabled); +#endif + + void set_logger(Logger logger); + + // SSL +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + void set_ca_cert_path(const char *ca_cert_file_path, const char *ca_cert_dir_path = nullptr); + + void set_ca_cert_store(X509_STORE *ca_cert_store); + + long get_openssl_verify_result() const; + + SSL_CTX *ssl_context() const; +#endif + +private: + std::unique_ptr cli_; + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + bool is_ssl_ = false; +#endif +}; // namespace httplib + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT +class SSLServer : public Server +{ +public: + SSLServer(const char *cert_path, + const char *private_key_path, + const char *client_ca_cert_file_path = nullptr, + const char *client_ca_cert_dir_path = nullptr); + + SSLServer(X509 *cert, EVP_PKEY *private_key, X509_STORE *client_ca_cert_store = nullptr); + + ~SSLServer() override; + + bool is_valid() const override; + +private: + bool process_and_close_socket(socket_t sock) override; + + SSL_CTX *ctx_; + std::mutex ctx_mutex_; +}; + +class SSLClient : public ClientImpl +{ +public: + explicit SSLClient(const std::string &host); + + explicit SSLClient(const std::string &host, int port); + + explicit SSLClient(const std::string &host, + int port, + const std::string &client_cert_path, + const std::string &client_key_path); + + explicit SSLClient(const std::string &host, int port, X509 *client_cert, EVP_PKEY *client_key); + + ~SSLClient() override; + + bool is_valid() const override; + + void set_ca_cert_path(const char *ca_cert_file_path, const char *ca_cert_dir_path = nullptr); + + void set_ca_cert_store(X509_STORE *ca_cert_store); + + long get_openssl_verify_result() const; + + SSL_CTX *ssl_context() const; + +private: + bool create_and_connect_socket(Socket &socket) override; + void close_socket(Socket &socket, bool process_socket_ret) override; + + bool process_socket(Socket &socket, std::function callback) override; + bool is_ssl() const override; + + bool connect_with_proxy(Socket &sock, Response &res, bool &success); + bool initialize_ssl(Socket &socket); + + bool load_certs(); + + bool verify_host(X509 *server_cert) const; + bool verify_host_with_subject_alt_name(X509 *server_cert) const; + bool verify_host_with_common_name(X509 *server_cert) const; + bool check_host_name(const char *pattern, size_t pattern_len) const; + + SSL_CTX *ctx_; + std::mutex ctx_mutex_; + std::once_flag initialize_cert_; + + std::vector host_components_; + + std::string ca_cert_file_path_; + std::string ca_cert_dir_path_; + long verify_result_ = 0; + + friend class ClientImpl; +}; +#endif + +// ---------------------------------------------------------------------------- + +/* + * Implementation + */ + +namespace detail +{ + +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 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; +} + +inline bool start_with(const std::string &a, const std::string &b) +{ + 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; +} + +inline 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 +inline 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; +} + +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 std::string encode_url(const std::string &s) +{ + std::string result; + + 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; +} + +inline 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; +} + +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], static_cast(size)); +} + +inline 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(); +} + +inline bool is_space_or_tab(char c) +{ + return c == ' ' || c == '\t'; +} + +inline 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); +} + +inline 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); +} + +template +void split(const char *b, const char *e, char d, Fn 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]); + } + } +} + +// 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(); + } + } + + size_t size() const + { + if (glowable_buffer_.empty()) + { + return fixed_buffer_used_size_; + } + else + { + return glowable_buffer_.size(); + } + } + + bool end_with_crlf() const + { + auto end = ptr() + size(); + return size() >= 2 && end[-2] == '\r' && end[-1] == '\n'; + } + + 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_ = 0; + std::string glowable_buffer_; +}; + +inline int close_socket(socket_t sock) +{ +#ifdef _WIN32 + return closesocket(sock); +#else + return close(sock); +#endif +} + +template +inline ssize_t handle_EINTR(T fn) +{ + ssize_t res = false; + while (true) + { + res = fn(); + if (res < 0 && errno == EINTR) + { + continue; + } + break; + } + return res; +} + +inline 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 + 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 +} + +inline 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 + 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 +} + +inline bool 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 && 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); + return res >= 0 && !error; + } + return false; +#else + 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 && (FD_ISSET(sock, &fdsr) || FD_ISSET(sock, &fdsw))) + { + int error = 0; + socklen_t len = sizeof(error); + return getsockopt(sock, SOL_SOCKET, SO_ERROR, reinterpret_cast(&error), &len) >= 0 && + !error; + } + return false; +#endif +} + +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; + +private: + socket_t sock_; + time_t read_timeout_sec_; + time_t read_timeout_usec_; + time_t write_timeout_sec_; + time_t write_timeout_usec_; +}; + +#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; + +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 + +class BufferStream : public Stream +{ +public: + BufferStream() = default; + ~BufferStream() override = default; + + bool is_readable() const override; + bool is_writable() const override; + ssize_t read(char *ptr, size_t size) override; + ssize_t write(const char *ptr, size_t size) override; + void get_remote_ip_and_port(std::string &ip, int &port) const override; + + const std::string &get_buffer() const; + +private: + std::string buffer; + size_t position = 0; +}; + +inline 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 +inline bool process_server_socket_core(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 (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 +inline bool process_server_socket(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(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); + }); +} + +template +inline 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, + T callback) +{ + SocketStream strm(sock, read_timeout_sec, read_timeout_usec, write_timeout_sec, + write_timeout_usec); + return callback(strm); +} + +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, + int socket_flags, + bool tcp_nodelay, + SocketOptions socket_options, + BindOrConnect bind_or_connect) +{ + // 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)) + { +#ifdef __linux__ + 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); + /** + * 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; +} + +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 bool bind_ip_address(socket_t sock, const char *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, "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 +inline std::string if2ip(const std::string &ifn) +{ + struct ifaddrs *ifap; + getifaddrs(&ifap); + for (auto ifa = ifap; ifa; ifa = ifa->ifa_next) + { + if (ifa->ifa_addr && ifn == ifa->ifa_name) + { + 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); + } + } + } + } + freeifaddrs(ifap); + return std::string(); +} +#endif + +inline socket_t create_client_socket(const char *host, + int port, + bool tcp_nodelay, + SocketOptions socket_options, + time_t timeout_sec, + time_t timeout_usec, + const std::string &intf, + Error &error) +{ + auto sock = create_socket( + host, port, 0, tcp_nodelay, std::move(socket_options), + [&](socket_t sock, struct addrinfo &ai) -> bool { + if (!intf.empty()) + { +#ifdef USE_IF2IP + auto ip = if2ip(intf); + if (ip.empty()) + { + ip = intf; + } + if (!bind_ip_address(sock, ip.c_str())) + { + error = Error::BindIPAddress; + return false; + } +#endif + } + + set_nonblocking(sock, true); + + auto ret = ::connect(sock, ai.ai_addr, static_cast(ai.ai_addrlen)); + + if (ret < 0) + { + if (is_connection_error() || !wait_until_socket_is_ready(sock, timeout_sec, timeout_usec)) + { + close_socket(sock); + error = Error::Connection; + return false; + } + } + + set_nonblocking(sock, false); + error = Error::Success; + return true; + }); + + if (sock != INVALID_SOCKET) + { + error = Error::Success; + } + else + { + if (error == Error::Success) + { + error = Error::Connection; + } + } + + return sock; +} + +inline void 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); + } + + std::array ipstr{}; + if (!getnameinfo(reinterpret_cast(&addr), addr_len, ipstr.data(), + static_cast(ipstr.size()), nullptr, 0, NI_NUMERICHOST)) + { + ip = ipstr.data(); + } +} + +inline 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); + } +} + +inline 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(); + } + + if (ext == "txt") + { + return "text/plain"; + } + else if (ext == "html" || ext == "htm") + { + 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 == "wasm") + { + return "application/wasm"; + } + 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 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"; + } +} + +inline bool can_compress_content_type(const std::string &content_type) +{ + return (!content_type.find("text/") && content_type != "text/event-stream") || + content_type == "image/svg+xml" || content_type == "application/javascript" || + content_type == "application/json" || content_type == "application/xml" || + content_type == "application/xhtml+xml"; +} + +enum class EncodingType +{ + None = 0, + Gzip, + Brotli +}; + +inline 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; +} + +class compressor +{ +public: + virtual ~compressor(){}; + + typedef std::function Callback; + virtual bool compress(const char *data, size_t data_length, bool last, Callback callback) = 0; +}; + +class decompressor +{ +public: + virtual ~decompressor() {} + + virtual bool is_valid() const = 0; + + typedef std::function Callback; + virtual bool decompress(const char *data, size_t data_length, Callback callback) = 0; +}; + +class nocompressor : public compressor +{ +public: + ~nocompressor(){}; + + bool compress(const char *data, size_t data_length, bool /*last*/, Callback callback) override + { + if (!data_length) + { + return true; + } + return callback(data, data_length); + } +}; + +#ifdef CPPHTTPLIB_ZLIB_SUPPORT +class gzip_compressor : public compressor +{ +public: + 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() { deflateEnd(&strm_); } + + bool compress(const char *data, size_t data_length, bool last, Callback callback) override + { + assert(is_valid_); + + auto flush = last ? Z_FINISH : Z_NO_FLUSH; + + strm_.avail_in = static_cast(data_length); + strm_.next_in = const_cast(reinterpret_cast(data)); + + int ret = Z_OK; + + std::array buff{}; + do + { + strm_.avail_out = buff.size(); + strm_.next_out = reinterpret_cast(buff.data()); + + ret = deflate(&strm_, flush); + assert(ret != Z_STREAM_ERROR); + + if (!callback(buff.data(), buff.size() - strm_.avail_out)) + { + return false; + } + } while (strm_.avail_out == 0); + + assert((last && ret == Z_STREAM_END) || (!last && ret == Z_OK)); + assert(strm_.avail_in == 0); + return true; + } + +private: + bool is_valid_ = false; + z_stream strm_; +}; + +class gzip_decompressor : public decompressor +{ +public: + 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() { inflateEnd(&strm_); } + + bool is_valid() const override { return is_valid_; } + + bool decompress(const char *data, size_t data_length, Callback callback) override + { + assert(is_valid_); + + int ret = Z_OK; + + strm_.avail_in = static_cast(data_length); + strm_.next_in = const_cast(reinterpret_cast(data)); + + std::array buff{}; + while (strm_.avail_in > 0) + { + strm_.avail_out = buff.size(); + strm_.next_out = reinterpret_cast(buff.data()); + + ret = inflate(&strm_, Z_NO_FLUSH); + 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; + } + } + + return ret == Z_OK || ret == Z_STREAM_END; + } + +private: + bool is_valid_ = false; + z_stream strm_; +}; +#endif + +#ifdef CPPHTTPLIB_BROTLI_SUPPORT +class brotli_compressor : public compressor +{ +public: + brotli_compressor() { state_ = BrotliEncoderCreateInstance(nullptr, nullptr, nullptr); } + + ~brotli_compressor() { BrotliEncoderDestroyInstance(state_); } + + bool compress(const char *data, size_t data_length, bool last, Callback callback) override + { + 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; + } + +private: + BrotliEncoderState *state_ = nullptr; +}; + +class brotli_decompressor : public decompressor +{ +public: + brotli_decompressor() + { + decoder_s = BrotliDecoderCreateInstance(0, 0, 0); + decoder_r = decoder_s ? BROTLI_DECODER_RESULT_NEEDS_MORE_INPUT : BROTLI_DECODER_RESULT_ERROR; + } + + ~brotli_decompressor() + { + if (decoder_s) + { + BrotliDecoderDestroyInstance(decoder_s); + } + } + + bool is_valid() const override { return decoder_s; } + + bool decompress(const char *data, size_t data_length, Callback callback) override + { + 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; + } + +private: + BrotliDecoderResult decoder_r; + BrotliDecoderState *decoder_s = nullptr; +}; +#endif + +inline bool has_header(const Headers &headers, const char *key) +{ + return headers.find(key) != headers.end(); +} + +inline const char *get_header_value(const Headers &headers, + const char *key, + size_t id = 0, + const char *def = nullptr) +{ + 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 +inline T get_header_value(const Headers & /*headers*/, + const char * /*key*/, + size_t /*id*/ = 0, + uint64_t /*def*/ = 0) +{} + +template <> +inline uint64_t get_header_value(const Headers &headers, + const char *key, + size_t id, + uint64_t def) +{ + auto rng = headers.equal_range(key); + auto it = rng.first; + std::advance(it, static_cast(id)); + if (it != rng.second) + { + return std::strtoull(it->second.data(), nullptr, 10); + } + return def; +} + +template +inline 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; +} + +inline 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. + if (line_reader.end_with_crlf()) + { + // Blank line indicates end of headers. + if (line_reader.size() == 2) + { + break; + } + } + else + { + continue; // Skip invalid line. + } + + // Exclude CRLF + auto end = line_reader.ptr() + line_reader.size() - 2; + + parse_header(line_reader.ptr(), end, [&](std::string &&key, std::string &&val) { + headers.emplace(std::move(key), std::move(val)); + }); + } + + return true; +} + +inline bool read_content_with_length(Stream &strm, + uint64_t len, + Progress progress, + ContentReceiver 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))) + { + return false; + } + + r += static_cast(n); + + if (progress) + { + if (!progress(r, len)) + { + return false; + } + } + } + + return true; +} + +inline 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); + } +} + +inline bool read_content_without_length(Stream &strm, ContentReceiver out) +{ + char buf[CPPHTTPLIB_RECV_BUFSIZ]; + 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))) + { + return false; + } + } + + return true; +} + +inline bool read_content_chunked(Stream &strm, ContentReceiver 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; +} + +inline 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, + ContentReceiver receiver, + bool decompress, + U callback) +{ + if (decompress) + { + std::string encoding = x.get_header_value("Content-Encoding"); + std::unique_ptr decompressor; + + if (encoding.find("gzip") != std::string::npos || encoding.find("deflate") != std::string::npos) + { +#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()) + { + ContentReceiver out = [&](const char *buf, size_t n) { + return decompressor->decompress( + buf, n, [&](const char *buf, size_t n) { return receiver(buf, n); }); + }; + return callback(std::move(out)); + } + else + { + status = 500; + return false; + } + } + } + + ContentReceiver out = [&](const char *buf, size_t n) { return receiver(buf, n); }; + return callback(std::move(out)); +} + +template +bool read_content(Stream &strm, + T &x, + size_t payload_max_length, + int &status, + Progress progress, + ContentReceiver receiver, + bool decompress) +{ + return prepare_content_receiver( + x, status, std::move(receiver), decompress, [&](const ContentReceiver &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; + }); +} + +template +inline ssize_t write_headers(Stream &strm, const T &info, const Headers &headers) +{ + ssize_t write_len = 0; + for (const auto &x : info.headers) + { + if (x.first == "EXCEPTION_WHAT") + { + continue; + } + 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; + } + 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; +} + +inline 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 +inline ssize_t write_content(Stream &strm, + ContentProvider content_provider, + size_t offset, + size_t length, + T is_shutting_down) +{ + size_t begin_offset = offset; + size_t end_offset = offset + length; + auto ok = true; + DataSink data_sink; + + data_sink.write = [&](const char *d, size_t l) { + if (ok) + { + offset += l; + if (!write_data(strm, d, l)) + { + ok = false; + } + } + }; + + 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)) + { + return -1; + } + if (!ok) + { + return -1; + } + } + + return static_cast(offset - begin_offset); +} + +template +inline ssize_t write_content_without_length(Stream &strm, + ContentProvider content_provider, + 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) { + if (ok) + { + offset += l; + if (!write_data(strm, d, l)) + { + ok = false; + } + } + }; + + 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 -1; + } + if (!ok) + { + return -1; + } + } + + return static_cast(offset); +} + +template +inline ssize_t write_content_chunked(Stream &strm, + ContentProvider content_provider, + T is_shutting_down, + U &compressor) +{ + size_t offset = 0; + auto data_available = true; + ssize_t total_written_length = 0; + auto ok = true; + DataSink data_sink; + + data_sink.write = [&](const char *d, size_t l) { + if (!ok) + { + return; + } + + 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; + })) + { + 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())) + { + total_written_length += chunk.size(); + } + else + { + ok = false; + return; + } + } + }; + + 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())) + { + total_written_length += chunk.size(); + } + else + { + ok = false; + return; + } + } + + static const std::string done_marker("0\r\n\r\n"); + if (write_data(strm, done_marker.data(), done_marker.size())) + { + total_written_length += done_marker.size(); + } + else + { + 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)) + { + return -1; + } + if (!ok) + { + return -1; + } + } + + return total_written_length; +} + +template +inline bool redirect(T &cli, const Request &req, Response &res, const std::string &path) +{ + 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); + if (ret) + { + res = new_res; + } + return ret; +} + +inline 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_url(it->second); + } + return query; +} + +inline void parse_query_text(const std::string &s, Params ¶ms) +{ + split(s.data(), s.data() + s.size(), '&', [&](const char *b, const char *e) { + 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)); + } + }); +} + +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); + if (boundary.length() >= 2 && boundary.front() == '"' && boundary.back() == '"') + { + boundary = boundary.substr(1, boundary.size() - 2); + } + return !boundary.empty(); +} + +inline bool parse_range_header(const std::string &s, Ranges &ranges) +{ + 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; +} + +class MultipartFormDataParser +{ +public: + MultipartFormDataParser() = default; + + void set_boundary(std::string &&boundary) { boundary_ = boundary; } + + bool is_valid() const { return is_valid_; } + + template + bool parse(const char *buf, size_t n, T content_callback, U header_callback) + { + + static const std::regex re_content_disposition( + "^Content-Disposition:\\s*form-data;\\s*name=\"(.*?)\"(?:;\\s*filename=" + "\"(.*?)\")?\\s*$", + std::regex_constants::icase); + static const std::string dash_ = "--"; + static const std::string crlf_ = "\r\n"; + + buf_.append(buf, n); // TODO: performance improvement + + while (!buf_.empty()) + { + switch (state_) + { + case 0: + { // Initial boundary + auto pattern = dash_ + boundary_ + crlf_; + if (pattern.size() > buf_.size()) + { + return true; + } + auto pos = buf_.find(pattern); + if (pos != 0) + { + return false; + } + buf_.erase(0, pattern.size()); + off_ += pattern.size(); + state_ = 1; + break; + } + case 1: + { // New entry + clear_file_info(); + state_ = 2; + break; + } + case 2: + { // Headers + auto pos = buf_.find(crlf_); + while (pos != std::string::npos) + { + // Empty line + if (pos == 0) + { + if (!header_callback(file_)) + { + is_valid_ = false; + return false; + } + buf_.erase(0, crlf_.size()); + off_ += crlf_.size(); + state_ = 3; + break; + } + + static const std::string header_name = "content-type:"; + const auto header = buf_.substr(0, pos); + if (start_with(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(0, pos + crlf_.size()); + off_ += pos + crlf_.size(); + pos = buf_.find(crlf_); + } + if (state_ != 3) + { + return true; + } + break; + } + case 3: + { // Body + { + auto pattern = crlf_ + dash_; + if (pattern.size() > buf_.size()) + { + return true; + } + + auto pos = buf_.find(pattern); + if (pos == std::string::npos) + { + pos = buf_.size(); + while (pos > 0) + { + auto c = buf_[pos - 1]; + if (c != '\r' && c != '\n' && c != '-') + { + break; + } + pos--; + } + } + + if (!content_callback(buf_.data(), pos)) + { + is_valid_ = false; + return false; + } + + off_ += pos; + buf_.erase(0, pos); + } + + { + auto pattern = crlf_ + dash_ + boundary_; + if (pattern.size() > buf_.size()) + { + return true; + } + + auto pos = buf_.find(pattern); + if (pos != std::string::npos) + { + if (!content_callback(buf_.data(), pos)) + { + is_valid_ = false; + return false; + } + + off_ += pos + pattern.size(); + buf_.erase(0, pos + pattern.size()); + state_ = 4; + } + else + { + if (!content_callback(buf_.data(), pattern.size())) + { + is_valid_ = false; + return false; + } + + off_ += pattern.size(); + buf_.erase(0, pattern.size()); + } + } + break; + } + case 4: + { // Boundary + if (crlf_.size() > buf_.size()) + { + return true; + } + if (buf_.compare(0, crlf_.size(), crlf_) == 0) + { + buf_.erase(0, crlf_.size()); + off_ += crlf_.size(); + state_ = 1; + } + else + { + auto pattern = dash_ + crlf_; + if (pattern.size() > buf_.size()) + { + return true; + } + if (buf_.compare(0, pattern.size(), pattern) == 0) + { + buf_.erase(0, pattern.size()); + off_ += pattern.size(); + is_valid_ = true; + state_ = 5; + } + else + { + return true; + } + } + break; + } + case 5: + { // Done + is_valid_ = false; + return false; + } + } + } + + return true; + } + +private: + void clear_file_info() + { + file_.name.clear(); + file_.filename.clear(); + file_.content_type.clear(); + } + + std::string boundary_; + + std::string buf_; + size_t state_ = 0; + bool is_valid_ = false; + size_t off_ = 0; + MultipartFormData file_; +}; + +inline 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; +} + +inline 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; +} + +inline 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 = slen - r.second; + r.second = slen - 1; + } + + if (r.second == -1) + { + r.second = slen - 1; + } + + return std::make_pair(r.first, r.second - r.first + 1); +} + +inline 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; +} + +inline std::string make_multipart_ranges_data(const Request &req, + Response &res, + const std::string &boundary, + const std::string &content_type) +{ + std::string data; + + process_multipart_ranges_data( + req, res, boundary, content_type, [&](const std::string &token) { data += token; }, + [&](const char *token) { data += token; }, + [&](size_t offset, size_t length) { + data += res.body.substr(offset, length); + return true; + }); + + return data; +} + +inline 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 char *token) { data_length += strlen(token); }, + [&](size_t /*offset*/, size_t length) { + data_length += length; + return true; + }); + + return data_length; +} + +template +inline bool write_multipart_ranges_data(Stream &strm, + const Request &req, + Response &res, + const std::string &boundary, + const std::string &content_type, + T is_shutting_down) +{ + return process_multipart_ranges_data( + req, res, boundary, content_type, [&](const std::string &token) { strm.write(token); }, + [&](const char *token) { strm.write(token); }, + [&](size_t offset, size_t length) { + return write_content(strm, res.content_provider_, offset, length, is_shutting_down) >= 0; + }); +} + +inline 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); +} + +inline 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; +} + +inline bool has_crlf(const char *s) +{ + auto p = s; + while (*p) + { + if (*p == '\r' || *p == '\n') + { + return true; + } + p++; + } + return false; +} + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT +template +inline std::string message_digest(const std::string &s, + Init init, + Update update, + Final final, + size_t digest_length) +{ + using namespace std; + + std::vector md(digest_length, 0); + CTX ctx; + init(&ctx); + update(&ctx, s.data(), s.size()); + final(md.data(), &ctx); + + stringstream ss; + for (auto c : md) + { + ss << setfill('0') << setw(2) << hex << (unsigned int)c; + } + return ss.str(); +} + +inline std::string MD5(const std::string &s) +{ + return message_digest(s, MD5_Init, MD5_Update, MD5_Final, MD5_DIGEST_LENGTH); +} + +inline std::string SHA_256(const std::string &s) +{ + return message_digest(s, SHA256_Init, SHA256_Update, SHA256_Final, + SHA256_DIGEST_LENGTH); +} + +inline std::string SHA_512(const std::string &s) +{ + return message_digest(s, SHA512_Init, SHA512_Update, SHA512_Final, + SHA512_DIGEST_LENGTH); +} +#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 +inline 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)) + { + 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; + WSAStartup(0x0002, &wsaData); + } + + ~WSInit() { WSACleanup(); } +}; + +static WSInit wsinit_; +#endif + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT +inline 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) +{ + using namespace std; + + string nc; + { + stringstream ss; + ss << setfill('0') << setw(8) << hex << cnonce_count; + nc = ss.str(); + } + + auto qop = auth.at("qop"); + if (qop.find("auth-int") != std::string::npos) + { + qop = "auth-int"; + } + else + { + qop = "auth"; + } + + std::string algo = "MD5"; + if (auth.find("algorithm") != auth.end()) + { + algo = auth.at("algorithm"); + } + + 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); + } + + response = + H(H(A1) + ":" + auth.at("nonce") + ":" + nc + ":" + cnonce + ":" + qop + ":" + H(A2)); + } + + auto field = "Digest username=\"" + username + "\", realm=\"" + auth.at("realm") + + "\", nonce=\"" + auth.at("nonce") + "\", uri=\"" + req.path + + "\", algorithm=" + algo + ", qop=" + qop + ", nc=\"" + nc + "\", cnonce=\"" + + cnonce + "\", response=\"" + response + "\""; + + auto key = is_proxy ? "Proxy-Authorization" : "Authorization"; + return std::make_pair(key, field); +} +#endif + +inline 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 +inline 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(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 + +// Header utilities +inline 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)); +} + +inline std::pair make_basic_authentication_header( + const std::string &username, + const std::string &password, + bool is_proxy = false) +{ + auto field = "Basic " + detail::base64_encode(username + ":" + password); + auto key = is_proxy ? "Proxy-Authorization" : "Authorization"; + return std::make_pair(key, std::move(field)); +} + +inline 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 +inline bool Request::has_header(const char *key) const +{ + return detail::has_header(headers, key); +} + +inline std::string Request::get_header_value(const char *key, size_t id) const +{ + return detail::get_header_value(headers, key, id, ""); +} + +template +inline T Request::get_header_value(const char *key, size_t id) const +{ + return detail::get_header_value(headers, key, id, 0); +} + +inline size_t Request::get_header_value_count(const char *key) const +{ + auto r = headers.equal_range(key); + return static_cast(std::distance(r.first, r.second)); +} + +inline void Request::set_header(const char *key, const char *val) +{ + if (!detail::has_crlf(key) && !detail::has_crlf(val)) + { + headers.emplace(key, val); + } +} + +inline void Request::set_header(const char *key, const std::string &val) +{ + if (!detail::has_crlf(key) && !detail::has_crlf(val.c_str())) + { + 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, 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(); +} + +inline size_t Request::get_param_value_count(const char *key) const +{ + auto r = params.equal_range(key); + return static_cast(std::distance(r.first, r.second)); +} + +inline bool Request::is_multipart_form_data() const +{ + const auto &content_type = get_header_value("Content-Type"); + return !content_type.find("multipart/form-data"); +} + +inline bool Request::has_file(const char *key) const +{ + return files.find(key) != files.end(); +} + +inline MultipartFormData Request::get_file_value(const char *key) const +{ + auto it = files.find(key); + if (it != files.end()) + { + return it->second; + } + return MultipartFormData(); +} + +// 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, size_t id) const +{ + return detail::get_header_value(headers, key, id, ""); +} + +template +inline T Response::get_header_value(const char *key, size_t id) const +{ + return detail::get_header_value(headers, key, id, 0); +} + +inline size_t Response::get_header_value_count(const char *key) const +{ + auto r = headers.equal_range(key); + return static_cast(std::distance(r.first, r.second)); +} + +inline void Response::set_header(const char *key, const char *val) +{ + if (!detail::has_crlf(key) && !detail::has_crlf(val)) + { + headers.emplace(key, val); + } +} + +inline void Response::set_header(const char *key, const std::string &val) +{ + if (!detail::has_crlf(key) && !detail::has_crlf(val.c_str())) + { + headers.emplace(key, val); + } +} + +inline void Response::set_redirect(const char *url, int stat) +{ + if (!detail::has_crlf(url)) + { + set_header("Location", url); + if (300 <= stat && stat < 400) + { + this->status = stat; + } + else + { + this->status = 302; + } + } +} + +inline void Response::set_redirect(const std::string &url, int stat) +{ + set_redirect(url.c_str(), stat); +} + +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(std::string s, const char *content_type) +{ + body = std::move(s); + set_header("Content-Type", content_type); +} + +inline void Response::set_content_provider(size_t in_length, + const char *content_type, + ContentProvider provider, + const std::function &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; +} + +inline void Response::set_content_provider(const char *content_type, + ContentProviderWithoutLength provider, + const std::function &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; +} + +inline void Response::set_chunked_content_provider(const char *content_type, + ContentProviderWithoutLength provider, + const std::function &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; +} + +// Rstream implementation +inline ssize_t Stream::write(const char *ptr) +{ + return write(ptr, strlen(ptr)); +} + +inline ssize_t Stream::write(const std::string &s) +{ + return write(s.data(), s.size()); +} + +template +inline ssize_t Stream::write_format(const char *fmt, const Args &... args) +{ + const auto bufsiz = 2048; + std::array buf; + +#if defined(_MSC_VER) && _MSC_VER < 1900 + auto sn = _snprintf_s(buf.data(), bufsiz - 1, buf.size() - 1, fmt, args...); +#else + auto sn = snprintf(buf.data(), buf.size() - 1, fmt, args...); +#endif + if (sn <= 0) + { + return sn; + } + + auto n = static_cast(sn); + + if (n >= buf.size() - 1) + { + std::vector glowable_buf(buf.size()); + + while (n >= glowable_buf.size() - 1) + { + glowable_buf.resize(glowable_buf.size() * 2); +#if defined(_MSC_VER) && _MSC_VER < 1900 + n = static_cast(_snprintf_s(&glowable_buf[0], glowable_buf.size(), + glowable_buf.size() - 1, fmt, args...)); +#else + n = static_cast(snprintf(&glowable_buf[0], glowable_buf.size() - 1, fmt, args...)); +#endif + } + return write(&glowable_buf[0], n); + } + else + { + return write(buf.data(), n); + } +} + +namespace detail +{ + +// Socket stream implementation +inline 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) +{} + +inline SocketStream::~SocketStream() {} + +inline bool SocketStream::is_readable() const +{ + return select_read(sock_, read_timeout_sec_, read_timeout_usec_) > 0; +} + +inline bool SocketStream::is_writable() const +{ + return select_write(sock_, write_timeout_sec_, write_timeout_usec_) > 0; +} + +inline ssize_t SocketStream::read(char *ptr, size_t size) +{ + if (!is_readable()) + { + return -1; + } + +#ifdef _WIN32 + if (size > static_cast((std::numeric_limits::max)())) + { + return -1; + } + return recv(sock_, ptr, static_cast(size), 0); +#else + return handle_EINTR([&]() { return recv(sock_, ptr, size, 0); }); +#endif +} + +inline ssize_t SocketStream::write(const char *ptr, size_t size) +{ + if (!is_writable()) + { + return -1; + } + +#ifdef _WIN32 + if (size > static_cast((std::numeric_limits::max)())) + { + return -1; + } + return send(sock_, ptr, static_cast(size), 0); +#else + return handle_EINTR([&]() { return send(sock_, ptr, size, 0); }); +#endif +} + +inline void SocketStream::get_remote_ip_and_port(std::string &ip, int &port) const +{ + return detail::get_remote_ip_and_port(sock_, ip, port); +} + +// Buffer stream implementation +inline bool BufferStream::is_readable() const +{ + return true; +} + +inline bool BufferStream::is_writable() const +{ + return true; +} + +inline ssize_t BufferStream::read(char *ptr, size_t size) +{ +#if defined(_MSC_VER) && _MSC_VER <= 1900 + 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); +} + +inline ssize_t BufferStream::write(const char *ptr, size_t size) +{ + buffer.append(ptr, size); + return static_cast(size); +} + +inline void BufferStream::get_remote_ip_and_port(std::string & /*ip*/, int & /*port*/) const {} + +inline const std::string &BufferStream::get_buffer() const +{ + return buffer; +} + +} // namespace detail + +// HTTP server implementation +inline 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 +} + +inline Server::~Server() {} + +inline Server &Server::Get(const char *pattern, Handler handler) +{ + get_handlers_.push_back(std::make_pair(std::regex(pattern), std::move(handler))); + return *this; +} + +inline Server &Server::Post(const char *pattern, Handler handler) +{ + post_handlers_.push_back(std::make_pair(std::regex(pattern), std::move(handler))); + return *this; +} + +inline Server &Server::Post(const char *pattern, HandlerWithContentReader handler) +{ + post_handlers_for_content_reader_.push_back( + std::make_pair(std::regex(pattern), std::move(handler))); + return *this; +} + +inline Server &Server::Put(const char *pattern, Handler handler) +{ + put_handlers_.push_back(std::make_pair(std::regex(pattern), std::move(handler))); + return *this; +} + +inline Server &Server::Put(const char *pattern, HandlerWithContentReader handler) +{ + put_handlers_for_content_reader_.push_back( + std::make_pair(std::regex(pattern), std::move(handler))); + return *this; +} + +inline Server &Server::Patch(const char *pattern, Handler handler) +{ + patch_handlers_.push_back(std::make_pair(std::regex(pattern), std::move(handler))); + return *this; +} + +inline Server &Server::Patch(const char *pattern, HandlerWithContentReader handler) +{ + patch_handlers_for_content_reader_.push_back( + std::make_pair(std::regex(pattern), std::move(handler))); + return *this; +} + +inline Server &Server::Delete(const char *pattern, Handler handler) +{ + delete_handlers_.push_back(std::make_pair(std::regex(pattern), std::move(handler))); + return *this; +} + +inline Server &Server::Delete(const char *pattern, HandlerWithContentReader handler) +{ + delete_handlers_for_content_reader_.push_back( + std::make_pair(std::regex(pattern), std::move(handler))); + return *this; +} + +inline Server &Server::Options(const char *pattern, Handler handler) +{ + options_handlers_.push_back(std::make_pair(std::regex(pattern), std::move(handler))); + return *this; +} + +inline bool Server::set_base_dir(const char *dir, const char *mount_point) +{ + return set_mount_point(mount_point, dir); +} + +inline bool Server::set_mount_point(const char *mount_point, const char *dir, Headers headers) +{ + if (detail::is_dir(dir)) + { + std::string mnt = mount_point ? mount_point : "/"; + if (!mnt.empty() && mnt[0] == '/') + { + base_dirs_.push_back({mnt, dir, std::move(headers)}); + return true; + } + } + return false; +} + +inline bool Server::remove_mount_point(const char *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; +} + +inline void Server::set_file_extension_and_mimetype_mapping(const char *ext, const char *mime) +{ + file_extension_and_mimetype_map_[ext] = mime; +} + +inline void Server::set_file_request_handler(Handler handler) +{ + file_request_handler_ = std::move(handler); +} + +inline void Server::set_error_handler(Handler handler) +{ + error_handler_ = std::move(handler); +} + +inline void Server::set_tcp_nodelay(bool on) +{ + tcp_nodelay_ = on; +} + +inline void Server::set_socket_options(SocketOptions socket_options) +{ + socket_options_ = std::move(socket_options); +} + +inline void Server::set_logger(Logger logger) +{ + logger_ = std::move(logger); +} + +inline void Server::set_expect_100_continue_handler(Expect100ContinueHandler handler) +{ + expect_100_continue_handler_ = std::move(handler); +} + +inline void Server::set_keep_alive_max_count(size_t count) +{ + keep_alive_max_count_ = count; +} + +inline void Server::set_keep_alive_timeout(time_t sec) +{ + keep_alive_timeout_sec_ = sec; +} + +inline void Server::set_read_timeout(time_t sec, time_t usec) +{ + read_timeout_sec_ = sec; + read_timeout_usec_ = usec; +} + +inline void Server::set_write_timeout(time_t sec, time_t usec) +{ + write_timeout_sec_ = sec; + write_timeout_usec_ = usec; +} + +inline void Server::set_idle_interval(time_t sec, time_t usec) +{ + idle_interval_sec_ = sec; + idle_interval_usec_ = usec; +} + +inline void Server::set_payload_max_length(size_t length) +{ + payload_max_length_ = length; +} + +inline bool Server::bind_to_port(const char *host, int port, int socket_flags) +{ + if (bind_internal(host, port, socket_flags) < 0) + return false; + return true; +} +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) +{ + return bind_to_port(host, port, socket_flags) && listen_internal(); +} + +inline bool Server::is_running() const +{ + return is_running_; +} + +inline 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); + } +} + +inline bool Server::parse_request_line(const char *s, Request &req) +{ + const static std::regex re( + "(GET|HEAD|POST|PUT|DELETE|CONNECT|OPTIONS|TRACE|PATCH|PRI) " + "(([^?]+)(?:\\?(.*?))?) (HTTP/1\\.[01])\r\n"); + + std::cmatch m; + if (std::regex_match(s, m, re)) + { + req.version = std::string(m[5]); + req.method = std::string(m[1]); + req.target = std::string(m[2]); + req.path = detail::decode_url(m[3], false); + + // 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 bool Server::write_response(Stream &strm, + bool close_connection, + const Request &req, + Response &res) +{ + assert(res.status != -1); + + if (400 <= res.status && error_handler_) + { + error_handler_(req, res); + } + + detail::BufferStream bstrm; + + // Response line + if (!bstrm.write_format("HTTP/1.1 %d %s\r\n", res.status, detail::status_message(res.status))) + { + return false; + } + + // 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("Accept-Ranges") && req.method == "HEAD") + { + res.set_header("Accept-Ranges", "bytes"); + } + + 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 + { + res.set_header("Content-Length", "0"); + } + } + } + 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); + res.body = res.body.substr(offset, length); + } + else + { + res.body = detail::make_multipart_ranges_data(req, res, boundary, content_type); + } + + if (type != detail::EncodingType::None) + { + std::unique_ptr compressor; + + if (type == detail::EncodingType::Gzip) + { +#ifdef CPPHTTPLIB_ZLIB_SUPPORT + compressor = detail::make_unique(); + res.set_header("Content-Encoding", "gzip"); +#endif + } + else if (type == detail::EncodingType::Brotli) + { +#ifdef CPPHTTPLIB_BROTLI_SUPPORT + compressor = detail::make_unique(); + res.set_header("Content-Encoding", "brotli"); +#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; + })) + { + return false; + } + + res.body.swap(compressed); + } + } + + auto length = std::to_string(res.body.size()); + res.set_header("Content-Length", length); + } + + if (!detail::write_headers(bstrm, res, Headers())) + { + return false; + } + + // Flush buffer + auto &data = bstrm.get_buffer(); + strm.write(data.data(), data.size()); + + // Body + auto ret = true; + if (req.method != "HEAD") + { + if (!res.body.empty()) + { + if (!strm.write(res.body)) + { + ret = false; + } + } + else if (res.content_provider_) + { + if (!write_content_with_provider(strm, req, res, boundary, content_type)) + { + ret = false; + } + } + } + + // Log + if (logger_) + { + logger_(req, res); + } + + return ret; +} + +inline 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()) + { + if (detail::write_content(strm, res.content_provider_, 0, res.content_length_, + is_shutting_down) < 0) + { + return false; + } + } + 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; + if (detail::write_content(strm, res.content_provider_, offset, length, is_shutting_down) < 0) + { + return false; + } + } + else + { + if (!detail::write_multipart_ranges_data(strm, req, res, boundary, content_type, + is_shutting_down)) + { + return false; + } + } + } + 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); + + if (detail::write_content_chunked(strm, res.content_provider_, is_shutting_down, + *compressor) < 0) + { + return false; + } + } + else + { + if (detail::write_content_without_length(strm, res.content_provider_, is_shutting_down) < 0) + { + return false; + } + } + } + return true; +} + +inline bool Server::read_content(Stream &strm, Request &req, Response &res) +{ + MultipartFormDataMap::iterator cur; + 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) { + 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")) + { + detail::parse_query_text(req.body, req.params); + } + return true; + } + return false; +} + +inline 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)); +} + +inline 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; + ContentReceiver 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) { + /* 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, std::move(multipart_receiver), + std::move(mulitpart_header)); + }; + } + else + { + out = std::move(receiver); + } + + 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; +} + +inline bool Server::handle_file_request(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 = 200; + if (!head && file_request_handler_) + { + file_request_handler_(req, res); + } + return true; + } + } + } + } + return false; +} + +inline socket_t Server::create_server_socket(const char *host, + int port, + int socket_flags, + SocketOptions socket_options) const +{ + return detail::create_socket( + host, port, 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, 5)) + { // Listen through 5 channels + return false; + } + return true; + }); +} + +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, 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; + } +} + +inline 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; + } + +#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; +} + +inline bool Server::routing(Request &req, Response &res, Stream &strm) +{ + // 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; +} + +inline bool Server::dispatch_request(Request &req, Response &res, const Handlers &handlers) +{ + + try + { + 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; + } + } + } + catch (const std::exception &ex) + { + res.status = 500; + res.set_header("EXCEPTION_WHAT", ex.what()); + } + catch (...) + { + res.status = 500; + res.set_header("EXCEPTION_WHAT", "UNKNOWN"); + } + return false; +} + +inline 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; +} + +inline 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"; + + // 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)) + { + // TODO: error + } + } + + 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 + if (routing(req, res, strm)) + { + if (res.status == -1) + { + res.status = req.ranges.empty() ? 200 : 206; + } + } + else + { + if (res.status == -1) + { + res.status = 404; + } + } + + return write_response(strm, close_connection, req, res); +} + +inline bool Server::is_valid() const +{ + return true; +} + +inline bool Server::process_and_close_socket(socket_t sock) +{ + auto ret = detail::process_server_socket( + 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 +inline ClientImpl::ClientImpl(const std::string &host) + : ClientImpl(host, 80, std::string(), std::string()) +{} + +inline ClientImpl::ClientImpl(const std::string &host, int port) + : ClientImpl(host, port, std::string(), std::string()) +{} + +inline 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_(host_ + ":" + std::to_string(port_)), + client_cert_path_(client_cert_path), + client_key_path_(client_key_path) +{} + +inline ClientImpl::~ClientImpl() +{ + stop_core(); +} + +inline bool ClientImpl::is_valid() const +{ + return true; +} + +inline Error ClientImpl::get_last_error() const +{ + return error_; +} + +inline 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_; + 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 + server_certificate_verification_ = rhs.server_certificate_verification_; +#endif + logger_ = rhs.logger_; +} + +inline socket_t ClientImpl::create_client_socket() const +{ + if (!proxy_host_.empty() && proxy_port_ != -1) + { + return detail::create_client_socket(proxy_host_.c_str(), proxy_port_, tcp_nodelay_, + socket_options_, connection_timeout_sec_, + connection_timeout_usec_, interface_, error_); + } + return detail::create_client_socket(host_.c_str(), port_, tcp_nodelay_, socket_options_, + connection_timeout_sec_, connection_timeout_usec_, interface_, + error_); +} + +inline bool ClientImpl::create_and_connect_socket(Socket &socket) +{ + auto sock = create_client_socket(); + if (sock == INVALID_SOCKET) + { + return false; + } + socket.sock = sock; + return true; +} + +inline void ClientImpl::close_socket(Socket &socket, bool /*process_socket_ret*/) +{ + detail::close_socket(socket.sock); + socket_.sock = INVALID_SOCKET; +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + socket_.ssl = nullptr; +#endif +} + +inline bool ClientImpl::read_response_line(Stream &strm, Response &res) +{ + std::array buf; + + detail::stream_line_reader line_reader(strm, buf.data(), buf.size()); + + if (!line_reader.getline()) + { + return false; + } + + const static std::regex re("(HTTP/1\\.[01]) (\\d+) (.*?)\r\n"); + + std::cmatch m; + 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]); + + // 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; +} + +inline bool ClientImpl::send(const Request &req, Response &res) +{ + std::lock_guard request_mutex_guard(request_mutex_); + + { + std::lock_guard guard(socket_mutex_); + + auto is_alive = false; + if (socket_.is_open()) + { + is_alive = detail::select_write(socket_.sock, 0, 0) > 0; + if (!is_alive) + { + close_socket(socket_, false); + } + } + + if (!is_alive) + { + if (!create_and_connect_socket(socket_)) + { + 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)) + { + return success; + } + } + + if (!scli.initialize_ssl(socket_)) + { + return false; + } + } +#endif + } + } + + auto close_connection = !keep_alive_; + + auto ret = process_socket( + socket_, [&](Stream &strm) { return handle_request(strm, req, res, close_connection); }); + + if (close_connection || !ret) + { + stop_core(); + } + + if (!ret) + { + if (error_ == Error::Success) + { + error_ = Error::Unknown; + } + } + + return ret; +} + +inline bool ClientImpl::handle_request(Stream &strm, + const Request &req, + Response &res, + bool close_connection) +{ + if (req.path.empty()) + { + error_ = Error::Connection; + return false; + } + + 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); + } + else + { + ret = process_request(strm, req, res, close_connection); + } + + if (!ret) + { + return false; + } + + if (300 < res.status && res.status < 400 && follow_location_) + { + ret = redirect(req, res); + } + +#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; + auto key = is_proxy ? "Proxy-Authorization" : "Authorization"; + new_req.headers.erase(key); + 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); + if (ret) + { + res = new_res; + } + } + } + } +#endif + + return ret; +} + +inline bool ClientImpl::redirect(const Request &req, Response &res) +{ + 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+))?)?([^?#]*(?:\?[^#]*)?)(?:#.*)?)"); + + 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(); + auto port_str = m[3].str(); + auto next_path = m[4].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); + } + else + { + if (next_scheme == "https") + { +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + SSLClient cli(next_host.c_str(), next_port); + cli.copy_settings(*this); + auto ret = detail::redirect(cli, req, res, next_path); + if (!ret) + { + error_ = cli.get_last_error(); + } + return ret; +#else + return false; +#endif + } + else + { + ClientImpl cli(next_host.c_str(), next_port); + cli.copy_settings(*this); + auto ret = detail::redirect(cli, req, res, next_path); + if (!ret) + { + error_ = cli.get_last_error(); + } + return ret; + } + } +} + +inline bool ClientImpl::write_request(Stream &strm, const Request &req, bool close_connection) +{ + detail::BufferStream bstrm; + + // Request line + const auto &path = detail::encode_url(req.path); + + bstrm.write_format("%s %s HTTP/1.1\r\n", req.method.c_str(), path.c_str()); + + // Additonal headers + Headers headers; + if (close_connection) + { + headers.emplace("Connection", "close"); + } + + if (!req.has_header("Host")) + { + if (is_ssl()) + { + if (port_ == 443) + { + headers.emplace("Host", host_); + } + else + { + headers.emplace("Host", host_and_port_); + } + } + else + { + if (port_ == 80) + { + headers.emplace("Host", host_); + } + else + { + headers.emplace("Host", host_and_port_); + } + } + } + + if (!req.has_header("Accept")) + { + headers.emplace("Accept", "*/*"); + } + + if (!req.has_header("User-Agent")) + { + headers.emplace("User-Agent", "cpp-httplib/0.7"); + } + + if (req.body.empty()) + { + if (req.content_provider) + { + auto length = std::to_string(req.content_length); + headers.emplace("Content-Length", length); + } + else + { + if (req.method == "POST" || req.method == "PUT" || req.method == "PATCH") + { + headers.emplace("Content-Length", "0"); + } + } + } + else + { + if (!req.has_header("Content-Type")) + { + headers.emplace("Content-Type", "text/plain"); + } + + if (!req.has_header("Content-Length")) + { + auto length = std::to_string(req.body.size()); + headers.emplace("Content-Length", length); + } + } + + if (!basic_auth_password_.empty()) + { + headers.insert( + make_basic_authentication_header(basic_auth_username_, basic_auth_password_, false)); + } + + if (!proxy_basic_auth_username_.empty() && !proxy_basic_auth_password_.empty()) + { + headers.insert(make_basic_authentication_header(proxy_basic_auth_username_, + proxy_basic_auth_password_, true)); + } + + if (!bearer_token_auth_token_.empty()) + { + headers.insert(make_bearer_token_authentication_header(bearer_token_auth_token_, false)); + } + + if (!proxy_bearer_token_auth_token_.empty()) + { + headers.insert(make_bearer_token_authentication_header(proxy_bearer_token_auth_token_, true)); + } + + 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()) + { + if (req.content_provider) + { + size_t offset = 0; + size_t end_offset = req.content_length; + + bool ok = true; + + DataSink data_sink; + data_sink.write = [&](const char *d, size_t l) { + if (ok) + { + if (detail::write_data(strm, d, l)) + { + offset += l; + } + else + { + ok = false; + } + } + }; + data_sink.is_writable = [&](void) { return ok && strm.is_writable(); }; + + while (offset < end_offset) + { + if (!req.content_provider(offset, end_offset - offset, data_sink)) + { + error_ = Error::Canceled; + return false; + } + if (!ok) + { + error_ = Error::Write; + return false; + } + } + } + } + else + { + return detail::write_data(strm, req.body.data(), req.body.size()); + } + + return true; +} + +inline std::unique_ptr ClientImpl::send_with_content_provider( + const char *method, + const char *path, + const Headers &headers, + const std::string &body, + size_t content_length, + ContentProvider content_provider, + const char *content_type) +{ + + Request req; + req.method = method; + req.headers = default_headers_; + req.headers.insert(headers.begin(), headers.end()); + req.path = path; + + if (content_type) + { + req.headers.emplace("Content-Type", content_type); + } + +#ifdef CPPHTTPLIB_ZLIB_SUPPORT + if (compress_) + { + 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) { + if (ok) + { + auto last = offset + data_len == content_length; + + auto ret = + compressor.compress(data, data_len, last, [&](const char *data, size_t data_len) { + req.body.append(data, data_len); + return true; + }); + + if (ret) + { + offset += data_len; + } + else + { + ok = false; + } + } + }; + 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.data(), body.size(), true, + [&](const char *data, size_t data_len) { + req.body.append(data, data_len); + return true; + })) + { + return nullptr; + } + } + + req.headers.emplace("Content-Encoding", "gzip"); + } + else +#endif + { + if (content_provider) + { + req.content_length = content_length; + req.content_provider = std::move(content_provider); + } + else + { + req.body = body; + } + } + + auto res = detail::make_unique(); + + return send(req, *res) ? std::move(res) : nullptr; +} + +inline bool ClientImpl::process_request(Stream &strm, + const Request &req, + Response &res, + bool close_connection) +{ + // Send request + if (!write_request(strm, req, close_connection)) + { + return false; + } + + // Receive response and headers + if (!read_response_line(strm, res) || !detail::read_headers(strm, res.headers)) + { + error_ = Error::Read; + return false; + } + + if (req.response_handler) + { + if (!req.response_handler(res)) + { + error_ = Error::Canceled; + return false; + } + } + + // Body + if (req.method != "HEAD" && req.method != "CONNECT") + { + auto out = req.content_receiver ? static_cast([&](const char *buf, size_t n) { + auto ret = req.content_receiver(buf, n); + if (!ret) + { + error_ = Error::Canceled; + } + return ret; + }) + : static_cast([&](const char *buf, size_t n) { + 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) + { + 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")) + { + stop_core(); + } + + // Log + if (logger_) + { + logger_(req, res); + } + + return true; +} + +inline bool ClientImpl::process_socket(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)); +} + +inline bool ClientImpl::is_ssl() const +{ + return false; +} + +inline Result ClientImpl::Get(const char *path) +{ + return Get(path, Headers(), Progress()); +} + +inline Result ClientImpl::Get(const char *path, Progress progress) +{ + return Get(path, Headers(), std::move(progress)); +} + +inline Result ClientImpl::Get(const char *path, const Headers &headers) +{ + return Get(path, headers, Progress()); +} + +inline Result ClientImpl::Get(const char *path, const Headers &headers, Progress progress) +{ + Request req; + req.method = "GET"; + req.path = path; + req.headers = default_headers_; + req.headers.insert(headers.begin(), headers.end()); + req.progress = std::move(progress); + + auto res = detail::make_unique(); + auto ret = send(req, *res); + return Result{ret ? std::move(res) : nullptr, get_last_error()}; +} + +inline Result ClientImpl::Get(const char *path, ContentReceiver content_receiver) +{ + return Get(path, Headers(), nullptr, std::move(content_receiver), nullptr); +} + +inline Result ClientImpl::Get(const char *path, ContentReceiver content_receiver, Progress progress) +{ + return Get(path, Headers(), nullptr, std::move(content_receiver), std::move(progress)); +} + +inline Result ClientImpl::Get(const char *path, + const Headers &headers, + ContentReceiver content_receiver) +{ + return Get(path, headers, nullptr, std::move(content_receiver), nullptr); +} + +inline Result ClientImpl::Get(const char *path, + const Headers &headers, + ContentReceiver content_receiver, + Progress progress) +{ + return Get(path, headers, nullptr, std::move(content_receiver), std::move(progress)); +} + +inline Result ClientImpl::Get(const char *path, + ResponseHandler response_handler, + ContentReceiver content_receiver) +{ + return Get(path, Headers(), std::move(response_handler), std::move(content_receiver), nullptr); +} + +inline Result ClientImpl::Get(const char *path, + const Headers &headers, + ResponseHandler response_handler, + ContentReceiver content_receiver) +{ + return Get(path, headers, std::move(response_handler), std::move(content_receiver), nullptr); +} + +inline Result ClientImpl::Get(const char *path, + ResponseHandler response_handler, + ContentReceiver content_receiver, + Progress progress) +{ + return Get(path, Headers(), std::move(response_handler), std::move(content_receiver), + std::move(progress)); +} + +inline Result ClientImpl::Get(const char *path, + const Headers &headers, + ResponseHandler response_handler, + ContentReceiver content_receiver, + Progress progress) +{ + Request req; + req.method = "GET"; + req.path = path; + req.headers = default_headers_; + req.headers.insert(headers.begin(), headers.end()); + req.response_handler = std::move(response_handler); + req.content_receiver = std::move(content_receiver); + req.progress = std::move(progress); + + auto res = detail::make_unique(); + auto ret = send(req, *res); + return Result{ret ? std::move(res) : nullptr, get_last_error()}; +} + +inline Result ClientImpl::Head(const char *path) +{ + return Head(path, Headers()); +} + +inline Result ClientImpl::Head(const char *path, const Headers &headers) +{ + Request req; + req.method = "HEAD"; + req.headers = default_headers_; + req.headers.insert(headers.begin(), headers.end()); + req.path = path; + + auto res = detail::make_unique(); + auto ret = send(req, *res); + return Result{ret ? std::move(res) : nullptr, get_last_error()}; +} + +inline Result ClientImpl::Post(const char *path) +{ + return Post(path, std::string(), nullptr); +} + +inline Result ClientImpl::Post(const char *path, const std::string &body, const char *content_type) +{ + return Post(path, Headers(), body, content_type); +} + +inline Result ClientImpl::Post(const char *path, + const Headers &headers, + const std::string &body, + const char *content_type) +{ + auto ret = send_with_content_provider("POST", path, headers, body, 0, nullptr, content_type); + return Result{std::move(ret), get_last_error()}; +} + +inline Result ClientImpl::Post(const char *path, const Params ¶ms) +{ + return Post(path, Headers(), params); +} + +inline Result ClientImpl::Post(const char *path, + size_t content_length, + ContentProvider content_provider, + const char *content_type) +{ + return Post(path, Headers(), content_length, std::move(content_provider), content_type); +} + +inline Result ClientImpl::Post(const char *path, + const Headers &headers, + size_t content_length, + ContentProvider content_provider, + const char *content_type) +{ + auto ret = send_with_content_provider("POST", path, headers, std::string(), content_length, + std::move(content_provider), content_type); + return Result{std::move(ret), get_last_error()}; +} + +inline Result ClientImpl::Post(const char *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"); +} + +inline Result ClientImpl::Post(const char *path, const MultipartFormDataItems &items) +{ + return Post(path, Headers(), items); +} + +inline Result ClientImpl::Post(const char *path, + const Headers &headers, + const MultipartFormDataItems &items) +{ + return Post(path, headers, items, detail::make_multipart_data_boundary()); +} +inline Result ClientImpl::Post(const char *path, + const Headers &headers, + const MultipartFormDataItems &items, + const std::string &boundary) +{ + for (size_t i = 0; i < boundary.size(); i++) + { + char c = boundary[i]; + if (!std::isalnum(c) && c != '-' && c != '_') + { + error_ = Error::UnsupportedMultipartBoundaryChars; + return Result{nullptr, error_}; + } + } + + 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"; + + std::string content_type = "multipart/form-data; boundary=" + boundary; + return Post(path, headers, body, content_type.c_str()); +} + +inline Result ClientImpl::Put(const char *path) +{ + return Put(path, std::string(), nullptr); +} + +inline Result ClientImpl::Put(const char *path, const std::string &body, const char *content_type) +{ + return Put(path, Headers(), body, content_type); +} + +inline Result ClientImpl::Put(const char *path, + const Headers &headers, + const std::string &body, + const char *content_type) +{ + auto ret = send_with_content_provider("PUT", path, headers, body, 0, nullptr, content_type); + return Result{std::move(ret), get_last_error()}; +} + +inline Result ClientImpl::Put(const char *path, + size_t content_length, + ContentProvider content_provider, + const char *content_type) +{ + return Put(path, Headers(), content_length, std::move(content_provider), content_type); +} + +inline Result ClientImpl::Put(const char *path, + const Headers &headers, + size_t content_length, + ContentProvider content_provider, + const char *content_type) +{ + auto ret = send_with_content_provider("PUT", path, headers, std::string(), content_length, + std::move(content_provider), content_type); + return Result{std::move(ret), get_last_error()}; +} + +inline Result ClientImpl::Put(const char *path, const Params ¶ms) +{ + return Put(path, Headers(), params); +} + +inline Result ClientImpl::Put(const char *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"); +} + +inline Result ClientImpl::Patch(const char *path, const std::string &body, const char *content_type) +{ + return Patch(path, Headers(), body, content_type); +} + +inline Result ClientImpl::Patch(const char *path, + const Headers &headers, + const std::string &body, + const char *content_type) +{ + auto ret = send_with_content_provider("PATCH", path, headers, body, 0, nullptr, content_type); + return Result{std::move(ret), get_last_error()}; +} + +inline Result ClientImpl::Patch(const char *path, + size_t content_length, + ContentProvider content_provider, + const char *content_type) +{ + return Patch(path, Headers(), content_length, std::move(content_provider), content_type); +} + +inline Result ClientImpl::Patch(const char *path, + const Headers &headers, + size_t content_length, + ContentProvider content_provider, + const char *content_type) +{ + auto ret = send_with_content_provider("PATCH", path, headers, std::string(), content_length, + std::move(content_provider), content_type); + return Result{std::move(ret), get_last_error()}; +} + +inline Result ClientImpl::Delete(const char *path) +{ + return Delete(path, Headers(), std::string(), nullptr); +} + +inline Result ClientImpl::Delete(const char *path, + const std::string &body, + const char *content_type) +{ + return Delete(path, Headers(), body, content_type); +} + +inline Result ClientImpl::Delete(const char *path, const Headers &headers) +{ + return Delete(path, headers, std::string(), nullptr); +} + +inline Result ClientImpl::Delete(const char *path, + const Headers &headers, + const std::string &body, + const char *content_type) +{ + Request req; + req.method = "DELETE"; + req.headers = default_headers_; + req.headers.insert(headers.begin(), headers.end()); + req.path = path; + + if (content_type) + { + req.headers.emplace("Content-Type", content_type); + } + req.body = body; + + auto res = detail::make_unique(); + auto ret = send(req, *res); + return Result{ret ? std::move(res) : nullptr, get_last_error()}; +} + +inline Result ClientImpl::Options(const char *path) +{ + return Options(path, Headers()); +} + +inline Result ClientImpl::Options(const char *path, const Headers &headers) +{ + Request req; + req.method = "OPTIONS"; + req.headers = default_headers_; + req.headers.insert(headers.begin(), headers.end()); + req.path = path; + + auto res = detail::make_unique(); + auto ret = send(req, *res); + return Result{ret ? std::move(res) : nullptr, get_last_error()}; +} + +inline size_t ClientImpl::is_socket_open() const +{ + std::lock_guard guard(socket_mutex_); + return socket_.is_open(); +} + +inline void ClientImpl::stop() +{ + stop_core(); + error_ = Error::Canceled; +} + +inline void ClientImpl::stop_core() +{ + std::lock_guard guard(socket_mutex_); + if (socket_.is_open()) + { + detail::shutdown_socket(socket_.sock); + std::this_thread::sleep_for(std::chrono::milliseconds(1)); + close_socket(socket_, true); + std::this_thread::sleep_for(std::chrono::milliseconds(1)); + } +} + +inline void ClientImpl::set_connection_timeout(time_t sec, time_t usec) +{ + connection_timeout_sec_ = sec; + connection_timeout_usec_ = usec; +} + +inline void ClientImpl::set_read_timeout(time_t sec, time_t usec) +{ + read_timeout_sec_ = sec; + read_timeout_usec_ = usec; +} + +inline void ClientImpl::set_write_timeout(time_t sec, time_t usec) +{ + write_timeout_sec_ = sec; + write_timeout_usec_ = usec; +} + +inline void ClientImpl::set_basic_auth(const char *username, const char *password) +{ + basic_auth_username_ = username; + basic_auth_password_ = password; +} + +inline void ClientImpl::set_bearer_token_auth(const char *token) +{ + bearer_token_auth_token_ = token; +} + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT +inline void ClientImpl::set_digest_auth(const char *username, const char *password) +{ + digest_auth_username_ = username; + digest_auth_password_ = password; +} +#endif + +inline void ClientImpl::set_keep_alive(bool on) +{ + keep_alive_ = on; +} + +inline void ClientImpl::set_follow_location(bool on) +{ + follow_location_ = on; +} + +inline void ClientImpl::set_default_headers(Headers headers) +{ + default_headers_ = std::move(headers); +} + +inline void ClientImpl::set_tcp_nodelay(bool on) +{ + tcp_nodelay_ = on; +} + +inline void ClientImpl::set_socket_options(SocketOptions socket_options) +{ + socket_options_ = std::move(socket_options); +} + +inline void ClientImpl::set_compress(bool on) +{ + compress_ = on; +} + +inline void ClientImpl::set_decompress(bool on) +{ + decompress_ = on; +} + +inline void ClientImpl::set_interface(const char *intf) +{ + interface_ = intf; +} + +inline void ClientImpl::set_proxy(const char *host, int port) +{ + proxy_host_ = host; + proxy_port_ = port; +} + +inline void ClientImpl::set_proxy_basic_auth(const char *username, const char *password) +{ + proxy_basic_auth_username_ = username; + proxy_basic_auth_password_ = password; +} + +inline void ClientImpl::set_proxy_bearer_token_auth(const char *token) +{ + proxy_bearer_token_auth_token_ = token; +} + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT +inline void ClientImpl::set_proxy_digest_auth(const char *username, const char *password) +{ + proxy_digest_auth_username_ = username; + proxy_digest_auth_password_ = password; +} +#endif + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT +inline void ClientImpl::enable_server_certificate_verification(bool enabled) +{ + server_certificate_verification_ = enabled; +} +#endif + +inline void ClientImpl::set_logger(Logger logger) +{ + logger_ = std::move(logger); +} + +/* + * SSL Implementation + */ +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT +namespace detail +{ + +template +inline 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) + { + auto bio = BIO_new_socket(static_cast(sock), BIO_NOCLOSE); + 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); + } + return nullptr; + } + } + + return ssl; +} + +inline void ssl_delete(std::mutex &ctx_mutex, SSL *ssl, bool process_socket_ret) +{ + if (process_socket_ret) + { + SSL_shutdown(ssl); // shutdown only if not already closed by remote + } + + std::lock_guard guard(ctx_mutex); + SSL_free(ssl); +} + +template +inline bool process_server_socket_ssl(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(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 +inline 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 +inline 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) +{ + { + timeval tv; + tv.tv_sec = static_cast(read_timeout_sec); + tv.tv_usec = static_cast(read_timeout_usec); + + setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, reinterpret_cast(&tv), sizeof(tv)); + } + { + timeval tv; + tv.tv_sec = static_cast(write_timeout_sec); + tv.tv_usec = static_cast(write_timeout_usec); + + setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO, reinterpret_cast(&tv), sizeof(tv)); + } +} + +inline SSLSocketStream::~SSLSocketStream() {} + +inline bool SSLSocketStream::is_readable() const +{ + return detail::select_read(sock_, read_timeout_sec_, read_timeout_usec_) > 0; +} + +inline bool SSLSocketStream::is_writable() const +{ + return detail::select_write(sock_, write_timeout_sec_, write_timeout_usec_) > 0; +} + +inline ssize_t SSLSocketStream::read(char *ptr, size_t size) +{ + if (SSL_pending(ssl_) > 0 || is_readable()) + { + return SSL_read(ssl_, ptr, static_cast(size)); + } + return -1; +} + +inline ssize_t SSLSocketStream::write(const char *ptr, size_t size) +{ + if (is_writable()) + { + return SSL_write(ssl_, ptr, static_cast(size)); + } + return -1; +} + +inline void SSLSocketStream::get_remote_ip_and_port(std::string &ip, int &port) const +{ + detail::get_remote_ip_and_port(sock_, ip, port); +} + +static SSLInit sslinit_; + +} // namespace detail + +// SSL HTTP server implementation +inline 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) +{ + 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_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) + { + // if (client_ca_cert_file_path) { + // auto list = SSL_load_client_CA_file(client_ca_cert_file_path); + // SSL_CTX_set_client_CA_list(ctx_, list); + // } + + 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, // SSL_VERIFY_CLIENT_ONCE, + nullptr); + } + } +} + +inline SSLServer::SSLServer(X509 *cert, EVP_PKEY *private_key, X509_STORE *client_ca_cert_store) +{ + 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); + + 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, // SSL_VERIFY_CLIENT_ONCE, + nullptr); + } + } +} + +inline SSLServer::~SSLServer() +{ + if (ctx_) + { + SSL_CTX_free(ctx_); + } +} + +inline bool SSLServer::is_valid() const +{ + return ctx_; +} + +inline bool SSLServer::process_and_close_socket(socket_t sock) +{ + auto ssl = + detail::ssl_new(sock, ctx_, ctx_mutex_, SSL_accept, [](SSL * /*ssl*/) { return true; }); + + if (ssl) + { + auto ret = detail::process_server_socket_ssl( + 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; }); + }); + + detail::ssl_delete(ctx_mutex_, ssl, ret); + return ret; + } + + detail::close_socket(sock); + return false; +} + +// SSL HTTP client implementation +inline SSLClient::SSLClient(const std::string &host) + : SSLClient(host, 443, std::string(), std::string()) +{} + +inline SSLClient::SSLClient(const std::string &host, int port) + : SSLClient(host, port, std::string(), std::string()) +{} + +inline 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(SSLv23_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; + } + } +} + +inline SSLClient::SSLClient(const std::string &host, + int port, + X509 *client_cert, + EVP_PKEY *client_key) + : ClientImpl(host, port) +{ + ctx_ = SSL_CTX_new(SSLv23_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; + } + } +} + +inline SSLClient::~SSLClient() +{ + if (ctx_) + { + SSL_CTX_free(ctx_); + } +} + +inline bool SSLClient::is_valid() const +{ + return ctx_; +} + +inline void SSLClient::set_ca_cert_path(const char *ca_cert_file_path, const char *ca_cert_dir_path) +{ + if (ca_cert_file_path) + { + ca_cert_file_path_ = ca_cert_file_path; + } + if (ca_cert_dir_path) + { + ca_cert_dir_path_ = ca_cert_dir_path; + } +} + +inline 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); + } + } +} + +inline long SSLClient::get_openssl_verify_result() const +{ + return verify_result_; +} + +inline SSL_CTX *SSLClient::ssl_context() const +{ + return ctx_; +} + +inline bool SSLClient::create_and_connect_socket(Socket &socket) +{ + return is_valid() && ClientImpl::create_and_connect_socket(socket); +} + +inline bool SSLClient::connect_with_proxy(Socket &socket, Response &res, bool &success) +{ + 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); + })) + { + close_socket(socket, true); + 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); + })) + { + close_socket(socket, true); + success = false; + return false; + } + } + } + else + { + res = res2; + return false; + } + } + + return true; +} + +inline 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; +} + +inline bool SSLClient::initialize_ssl(Socket &socket) +{ + auto ssl = detail::ssl_new( + socket.sock, ctx_, ctx_mutex_, + [&](SSL *ssl) { + if (server_certificate_verification_) + { + if (!load_certs()) + { + error_ = Error::SSLLoadingCerts; + return false; + } + SSL_set_verify(ssl, SSL_VERIFY_NONE, nullptr); + } + + if (SSL_connect(ssl) != 1) + { + error_ = Error::SSLConnection; + return false; + } + + if (server_certificate_verification_) + { + verify_result_ = SSL_get_verify_result(ssl); + + if (verify_result_ != X509_V_OK) + { + error_ = Error::SSLServerVerification; + return false; + } + + auto server_cert = SSL_get_peer_certificate(ssl); + + 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 *ssl) { + SSL_set_tlsext_host_name(ssl, host_.c_str()); + return true; + }); + + if (ssl) + { + socket.ssl = ssl; + return true; + } + + close_socket(socket, false); + return false; +} + +inline void SSLClient::close_socket(Socket &socket, bool process_socket_ret) +{ + detail::close_socket(socket.sock); + socket_.sock = INVALID_SOCKET; + if (socket.ssl) + { + detail::ssl_delete(ctx_mutex_, socket.ssl, process_socket_ret); + socket_.ssl = nullptr; + } +} + +inline bool SSLClient::process_socket(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)); +} + +inline bool SSLClient::is_ssl() const +{ + return true; +} + +inline 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); +} + +inline 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); + + if (strlen(name) == name_len) + { + 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; +} + +inline 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; +} + +inline 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 +inline Client::Client(const char *scheme_host_port) + : Client(scheme_host_port, std::string(), std::string()) +{} + +inline Client::Client(const char *scheme_host_port, + const std::string &client_cert_path, + const std::string &client_key_path) +{ + const static std::regex re(R"(^(?:([a-z]+)://)?([^:/?#]+)(?::(\d+))?)"); + + std::cmatch 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 + return; + } + + auto is_ssl = scheme == "https"; + + auto host = m[2].str(); + + auto port_str = m[3].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.c_str(), port, client_cert_path, client_key_path); + is_ssl_ = is_ssl; +#endif + } + else + { + cli_ = detail::make_unique(host.c_str(), port, client_cert_path, client_key_path); + } + } + else + { + cli_ = detail::make_unique(scheme_host_port, 80, client_cert_path, client_key_path); + } +} + +inline Client::Client(const std::string &host, int port) + : cli_(detail::make_unique(host, port)) +{} + +inline 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)) +{} + +inline Client::~Client() {} + +inline bool Client::is_valid() const +{ + return cli_ != nullptr && cli_->is_valid(); +} + +inline Result Client::Get(const char *path) +{ + return cli_->Get(path); +} +inline Result Client::Get(const char *path, const Headers &headers) +{ + return cli_->Get(path, headers); +} +inline Result Client::Get(const char *path, Progress progress) +{ + return cli_->Get(path, std::move(progress)); +} +inline Result Client::Get(const char *path, const Headers &headers, Progress progress) +{ + return cli_->Get(path, headers, std::move(progress)); +} +inline Result Client::Get(const char *path, ContentReceiver content_receiver) +{ + return cli_->Get(path, std::move(content_receiver)); +} +inline Result Client::Get(const char *path, + const Headers &headers, + ContentReceiver content_receiver) +{ + return cli_->Get(path, headers, std::move(content_receiver)); +} +inline Result Client::Get(const char *path, ContentReceiver content_receiver, Progress progress) +{ + return cli_->Get(path, std::move(content_receiver), std::move(progress)); +} +inline Result Client::Get(const char *path, + const Headers &headers, + ContentReceiver content_receiver, + Progress progress) +{ + return cli_->Get(path, headers, std::move(content_receiver), std::move(progress)); +} +inline Result Client::Get(const char *path, + ResponseHandler response_handler, + ContentReceiver content_receiver) +{ + return cli_->Get(path, std::move(response_handler), std::move(content_receiver)); +} +inline Result Client::Get(const char *path, + const Headers &headers, + ResponseHandler response_handler, + ContentReceiver content_receiver) +{ + return cli_->Get(path, headers, std::move(response_handler), std::move(content_receiver)); +} +inline Result Client::Get(const char *path, + ResponseHandler response_handler, + ContentReceiver content_receiver, + Progress progress) +{ + return cli_->Get(path, std::move(response_handler), std::move(content_receiver), + std::move(progress)); +} +inline Result Client::Get(const char *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)); +} + +inline Result Client::Head(const char *path) +{ + return cli_->Head(path); +} +inline Result Client::Head(const char *path, const Headers &headers) +{ + return cli_->Head(path, headers); +} + +inline Result Client::Post(const char *path) +{ + return cli_->Post(path); +} +inline Result Client::Post(const char *path, const std::string &body, const char *content_type) +{ + return cli_->Post(path, body, content_type); +} +inline Result Client::Post(const char *path, + const Headers &headers, + const std::string &body, + const char *content_type) +{ + return cli_->Post(path, headers, body, content_type); +} +inline Result Client::Post(const char *path, + size_t content_length, + ContentProvider content_provider, + const char *content_type) +{ + return cli_->Post(path, content_length, std::move(content_provider), content_type); +} +inline Result Client::Post(const char *path, + const Headers &headers, + size_t content_length, + ContentProvider content_provider, + const char *content_type) +{ + return cli_->Post(path, headers, content_length, std::move(content_provider), content_type); +} +inline Result Client::Post(const char *path, const Params ¶ms) +{ + return cli_->Post(path, params); +} +inline Result Client::Post(const char *path, const Headers &headers, const Params ¶ms) +{ + return cli_->Post(path, headers, params); +} +inline Result Client::Post(const char *path, const MultipartFormDataItems &items) +{ + return cli_->Post(path, items); +} +inline Result Client::Post(const char *path, + const Headers &headers, + const MultipartFormDataItems &items) +{ + return cli_->Post(path, headers, items); +} +inline Result Client::Post(const char *path, + const Headers &headers, + const MultipartFormDataItems &items, + const std::string &boundary) +{ + return cli_->Post(path, headers, items, boundary); +} +inline Result Client::Put(const char *path) +{ + return cli_->Put(path); +} +inline Result Client::Put(const char *path, const std::string &body, const char *content_type) +{ + return cli_->Put(path, body, content_type); +} +inline Result Client::Put(const char *path, + const Headers &headers, + const std::string &body, + const char *content_type) +{ + return cli_->Put(path, headers, body, content_type); +} +inline Result Client::Put(const char *path, + size_t content_length, + ContentProvider content_provider, + const char *content_type) +{ + return cli_->Put(path, content_length, std::move(content_provider), content_type); +} +inline Result Client::Put(const char *path, + const Headers &headers, + size_t content_length, + ContentProvider content_provider, + const char *content_type) +{ + return cli_->Put(path, headers, content_length, std::move(content_provider), content_type); +} +inline Result Client::Put(const char *path, const Params ¶ms) +{ + return cli_->Put(path, params); +} +inline Result Client::Put(const char *path, const Headers &headers, const Params ¶ms) +{ + return cli_->Put(path, headers, params); +} +inline Result Client::Patch(const char *path, const std::string &body, const char *content_type) +{ + return cli_->Patch(path, body, content_type); +} +inline Result Client::Patch(const char *path, + const Headers &headers, + const std::string &body, + const char *content_type) +{ + return cli_->Patch(path, headers, body, content_type); +} +inline Result Client::Patch(const char *path, + size_t content_length, + ContentProvider content_provider, + const char *content_type) +{ + return cli_->Patch(path, content_length, std::move(content_provider), content_type); +} +inline Result Client::Patch(const char *path, + const Headers &headers, + size_t content_length, + ContentProvider content_provider, + const char *content_type) +{ + return cli_->Patch(path, headers, content_length, std::move(content_provider), content_type); +} +inline Result Client::Delete(const char *path) +{ + return cli_->Delete(path); +} +inline Result Client::Delete(const char *path, const std::string &body, const char *content_type) +{ + return cli_->Delete(path, body, content_type); +} +inline Result Client::Delete(const char *path, const Headers &headers) +{ + return cli_->Delete(path, headers); +} +inline Result Client::Delete(const char *path, + const Headers &headers, + const std::string &body, + const char *content_type) +{ + return cli_->Delete(path, headers, body, content_type); +} +inline Result Client::Options(const char *path) +{ + return cli_->Options(path); +} +inline Result Client::Options(const char *path, const Headers &headers) +{ + return cli_->Options(path, headers); +} + +inline bool Client::send(const Request &req, Response &res) +{ + return cli_->send(req, res); +} + +inline size_t Client::is_socket_open() const +{ + return cli_->is_socket_open(); +} + +inline void Client::stop() +{ + cli_->stop(); +} + +inline void Client::set_default_headers(Headers headers) +{ + cli_->set_default_headers(std::move(headers)); +} + +inline void Client::set_tcp_nodelay(bool on) +{ + cli_->set_tcp_nodelay(on); +} +inline void Client::set_socket_options(SocketOptions socket_options) +{ + cli_->set_socket_options(std::move(socket_options)); +} + +inline void Client::set_connection_timeout(time_t sec, time_t usec) +{ + cli_->set_connection_timeout(sec, usec); +} +inline void Client::set_read_timeout(time_t sec, time_t usec) +{ + cli_->set_read_timeout(sec, usec); +} +inline void Client::set_write_timeout(time_t sec, time_t usec) +{ + cli_->set_write_timeout(sec, usec); +} + +inline void Client::set_basic_auth(const char *username, const char *password) +{ + cli_->set_basic_auth(username, password); +} +inline void Client::set_bearer_token_auth(const char *token) +{ + cli_->set_bearer_token_auth(token); +} +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT +inline void Client::set_digest_auth(const char *username, const char *password) +{ + cli_->set_digest_auth(username, password); +} +#endif + +inline void Client::set_keep_alive(bool on) +{ + cli_->set_keep_alive(on); +} +inline void Client::set_follow_location(bool on) +{ + cli_->set_follow_location(on); +} + +inline void Client::set_compress(bool on) +{ + cli_->set_compress(on); +} + +inline void Client::set_decompress(bool on) +{ + cli_->set_decompress(on); +} + +inline void Client::set_interface(const char *intf) +{ + cli_->set_interface(intf); +} + +inline void Client::set_proxy(const char *host, int port) +{ + cli_->set_proxy(host, port); +} +inline void Client::set_proxy_basic_auth(const char *username, const char *password) +{ + cli_->set_proxy_basic_auth(username, password); +} +inline void Client::set_proxy_bearer_token_auth(const char *token) +{ + cli_->set_proxy_bearer_token_auth(token); +} +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT +inline void Client::set_proxy_digest_auth(const char *username, const char *password) +{ + cli_->set_proxy_digest_auth(username, password); +} +#endif + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT +inline void Client::enable_server_certificate_verification(bool enabled) +{ + cli_->enable_server_certificate_verification(enabled); +} +#endif + +inline void Client::set_logger(Logger logger) +{ + cli_->set_logger(logger); +} + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT +inline void Client::set_ca_cert_path(const char *ca_cert_file_path, const char *ca_cert_dir_path) +{ + if (is_ssl_) + { + static_cast(*cli_).set_ca_cert_path(ca_cert_file_path, ca_cert_dir_path); + } +} + +inline void Client::set_ca_cert_store(X509_STORE *ca_cert_store) +{ + if (is_ssl_) + { + static_cast(*cli_).set_ca_cert_store(ca_cert_store); + } +} + +inline 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_??? +} + +inline SSL_CTX *Client::ssl_context() const +{ + if (is_ssl_) + { + return static_cast(*cli_).ssl_context(); + } + return nullptr; +} +#endif + +// ---------------------------------------------------------------------------- + +} // namespace httplib + +#endif // CPPHTTPLIB_HTTPLIB_H