[mapguide-commits] r9680 - in sandbox/jng/ogc_viewer_representation/Oem: . cpp-httplib
svn_mapguide at osgeo.org
svn_mapguide at osgeo.org
Thu Jul 23 05:21:21 PDT 2020
Author: jng
Date: 2020-07-23 05:21:21 -0700 (Thu, 23 Jul 2020)
New Revision: 9680
Added:
sandbox/jng/ogc_viewer_representation/Oem/cpp-httplib/
sandbox/jng/ogc_viewer_representation/Oem/cpp-httplib/httplib.h
Log:
Add cpp-httplib
Added: sandbox/jng/ogc_viewer_representation/Oem/cpp-httplib/httplib.h
===================================================================
--- sandbox/jng/ogc_viewer_representation/Oem/cpp-httplib/httplib.h (rev 0)
+++ sandbox/jng/ogc_viewer_representation/Oem/cpp-httplib/httplib.h 2020-07-23 12:21:21 UTC (rev 9680)
@@ -0,0 +1,5823 @@
+//
+// 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_TIMEOUT_USECOND
+#define CPPHTTPLIB_KEEPALIVE_TIMEOUT_USECOND 0
+#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<size_t>::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_THREAD_POOL_COUNT
+#define CPPHTTPLIB_THREAD_POOL_COUNT \
+ ((std::max)(8u, std::thread::hardware_concurrency() > 0 \
+ ? std::thread::hardware_concurrency() - 1 \
+ : 0))
+#endif
+
+// Prefer gnu::deprecated, otherwise gcc complains if we use
+// [[deprecated]] together with pedantic.
+#ifndef CPPHTTPLIB_DEPRECATED
+#if defined(__has_cpp_attribute)
+#if __has_cpp_attribute(gnu::deprecated)
+#define CPPHTTPLIB_DEPRECATED [[gnu::deprecated]]
+#else
+#if __has_cpp_attribute(deprecated)
+#define CPPHTTPLIB_DEPRECATED [[deprecated]]
+#else
+#define CPPHTTPLIB_DEPRECATED
+#endif
+#endif
+#else
+#define CPPHTTPLIB_DEPRECATED
+#endif
+#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 <io.h>
+#include <winsock2.h>
+#include <ws2tcpip.h>
+
+#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 <arpa/inet.h>
+#include <cstring>
+#include <ifaddrs.h>
+#include <netdb.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#ifdef CPPHTTPLIB_USE_POLL
+#include <poll.h>
+#endif
+#include <csignal>
+#include <pthread.h>
+#include <sys/select.h>
+#include <sys/socket.h>
+#include <unistd.h>
+
+using socket_t = int;
+#define INVALID_SOCKET (-1)
+#endif //_WIN32
+
+#include <array>
+#include <atomic>
+#include <cassert>
+#include <climits>
+#include <condition_variable>
+#include <errno.h>
+#include <fcntl.h>
+#include <fstream>
+#include <functional>
+#include <iostream>
+#include <list>
+#include <map>
+#include <memory>
+#include <mutex>
+#include <random>
+#include <regex>
+#include <string>
+#include <sys/stat.h>
+#include <thread>
+
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+#include <openssl/err.h>
+#include <openssl/md5.h>
+#include <openssl/ssl.h>
+#include <openssl/x509v3.h>
+
+#include <iomanip>
+#include <iostream>
+#include <sstream>
+
+// #if OPENSSL_VERSION_NUMBER < 0x1010100fL
+// #error Sorry, OpenSSL versions prior to 1.1.1 are not supported
+// #endif
+
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
+#include <openssl/crypto.h>
+inline const unsigned char *ASN1_STRING_get0_data(const ASN1_STRING *asn1) {
+ return M_ASN1_STRING_data(asn1);
+}
+#endif
+#endif
+
+#ifdef CPPHTTPLIB_ZLIB_SUPPORT
+#include <zlib.h>
+#endif
+/*
+ * Declaration
+ */
+namespace httplib {
+
+namespace detail {
+
+struct ci {
+ bool operator()(const std::string &s1, const std::string &s2) const {
+ return std::lexicographical_compare(
+ s1.begin(), s1.end(), s2.begin(), s2.end(),
+ [](char c1, char c2) { return ::tolower(c1) < ::tolower(c2); });
+ }
+};
+
+} // namespace detail
+
+using Headers = std::multimap<std::string, std::string, detail::ci>;
+
+using Params = std::multimap<std::string, std::string>;
+using Match = std::smatch;
+
+using Progress = std::function<bool(uint64_t current, uint64_t total)>;
+
+struct Response;
+using ResponseHandler = std::function<bool(const Response &response)>;
+
+struct MultipartFormData {
+ std::string name;
+ std::string content;
+ std::string filename;
+ std::string content_type;
+};
+using MultipartFormDataItems = std::vector<MultipartFormData>;
+using MultipartFormDataMap = std::multimap<std::string, MultipartFormData>;
+
+class DataSink {
+public:
+ DataSink() : os(&sb_), sb_(*this) {}
+
+ DataSink(const DataSink &) = delete;
+ DataSink &operator=(const DataSink &) = delete;
+ DataSink(DataSink &&) = delete;
+ DataSink &operator=(DataSink &&) = delete;
+
+ std::function<void(const char *data, size_t data_len)> write;
+ std::function<void()> done;
+ std::function<bool()> is_writable;
+ std::ostream os;
+
+private:
+ class data_sink_streambuf : public std::streambuf {
+ public:
+ data_sink_streambuf(DataSink &sink) : sink_(sink) {}
+
+ protected:
+ std::streamsize xsputn(const char *s, std::streamsize n) {
+ sink_.write(s, static_cast<size_t>(n));
+ return n;
+ }
+
+ private:
+ DataSink &sink_;
+ };
+
+ data_sink_streambuf sb_;
+};
+
+using ContentProvider =
+ std::function<bool(size_t offset, size_t length, DataSink &sink)>;
+
+using ChunkedContentProvider =
+ std::function<bool(size_t offset, DataSink &sink)>;
+
+using ContentReceiver =
+ std::function<bool(const char *data, size_t data_length)>;
+
+using MultipartContentHeader =
+ std::function<bool(const MultipartFormData &file)>;
+
+class ContentReader {
+public:
+ using Reader = std::function<bool(ContentReceiver receiver)>;
+ using MultipartReader = std::function<bool(MultipartContentHeader header,
+ ContentReceiver receiver)>;
+
+ ContentReader(Reader reader, MultipartReader multipart_reader)
+ : reader_(reader), multipart_reader_(multipart_reader) {}
+
+ bool operator()(MultipartContentHeader header,
+ ContentReceiver receiver) const {
+ return multipart_reader_(header, receiver);
+ }
+
+ bool operator()(ContentReceiver receiver) const { return reader_(receiver); }
+
+ Reader reader_;
+ MultipartReader multipart_reader_;
+};
+
+using Range = std::pair<ssize_t, ssize_t>;
+using Ranges = std::vector<Range>;
+
+struct Request {
+ std::string method;
+ std::string path;
+ Headers headers;
+ std::string body;
+
+ std::string remote_addr;
+ int remote_port = -1;
+
+ // for server
+ std::string version;
+ std::string target;
+ Params params;
+ MultipartFormDataMap files;
+ Ranges ranges;
+ Match matches;
+
+ // for client
+ 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;
+ 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;
+ 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;
+ 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_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, ContentProvider provider,
+ std::function<void()> resource_releaser = [] {});
+
+ void set_chunked_content_provider(
+ ChunkedContentProvider provider,
+ std::function<void()> resource_releaser = [] {});
+
+ 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<void()> content_provider_resource_releaser_;
+};
+
+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 <typename... Args>
+ ssize_t write_format(const char *fmt, const Args &... args);
+ ssize_t write(const char *ptr);
+ ssize_t write(const std::string &s);
+};
+
+class TaskQueue {
+public:
+ TaskQueue() = default;
+ virtual ~TaskQueue() = default;
+
+ virtual void enqueue(std::function<void()> fn) = 0;
+ virtual void shutdown() = 0;
+
+ virtual void on_idle(){};
+};
+
+class ThreadPool : public TaskQueue {
+public:
+ explicit ThreadPool(size_t n) : shutdown_(false) {
+ while (n) {
+ threads_.emplace_back(worker(*this));
+ n--;
+ }
+ }
+
+ ThreadPool(const ThreadPool &) = delete;
+ ~ThreadPool() override = default;
+
+ void enqueue(std::function<void()> fn) override {
+ std::unique_lock<std::mutex> lock(mutex_);
+ jobs_.push_back(fn);
+ cond_.notify_one();
+ }
+
+ void shutdown() override {
+ // Stop all worker threads...
+ {
+ std::unique_lock<std::mutex> lock(mutex_);
+ shutdown_ = true;
+ }
+
+ cond_.notify_all();
+
+ // Join...
+ for (auto &t : threads_) {
+ t.join();
+ }
+ }
+
+private:
+ struct worker {
+ explicit worker(ThreadPool &pool) : pool_(pool) {}
+
+ void operator()() {
+ for (;;) {
+ std::function<void()> fn;
+ {
+ std::unique_lock<std::mutex> lock(pool_.mutex_);
+
+ pool_.cond_.wait(
+ lock, [&] { return !pool_.jobs_.empty() || pool_.shutdown_; });
+
+ if (pool_.shutdown_ && pool_.jobs_.empty()) { break; }
+
+ fn = pool_.jobs_.front();
+ pool_.jobs_.pop_front();
+ }
+
+ assert(true == static_cast<bool>(fn));
+ fn();
+ }
+ }
+
+ ThreadPool &pool_;
+ };
+ friend struct worker;
+
+ std::vector<std::thread> threads_;
+ std::list<std::function<void()>> jobs_;
+
+ bool shutdown_;
+
+ std::condition_variable cond_;
+ std::mutex mutex_;
+};
+
+using Logger = std::function<void(const Request &, const Response &)>;
+
+using SocketOptions = std::function<void(socket_t sock)>;
+
+inline void default_socket_options(socket_t sock) {
+ int yes = 1;
+#ifdef _WIN32
+ setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, reinterpret_cast<char *>(&yes),
+ sizeof(yes));
+ setsockopt(sock, SOL_SOCKET, SO_EXCLUSIVEADDRUSE,
+ reinterpret_cast<char *>(&yes), sizeof(yes));
+#else
+#ifdef SO_REUSEPORT
+ setsockopt(sock, SOL_SOCKET, SO_REUSEPORT, reinterpret_cast<void *>(&yes),
+ sizeof(yes));
+#else
+ setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, reinterpret_cast<void *>(&yes),
+ sizeof(yes));
+#endif
+#endif
+}
+
+class Server {
+public:
+ using Handler = std::function<void(const Request &, Response &)>;
+ using HandlerWithContentReader = std::function<void(
+ const Request &, Response &, const ContentReader &content_reader)>;
+ using Expect100ContinueHandler =
+ std::function<int(const Request &, Response &)>;
+
+ Server();
+
+ virtual ~Server();
+
+ virtual bool is_valid() const;
+
+ Server &Get(const 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);
+
+ CPPHTTPLIB_DEPRECATED bool set_base_dir(const char *dir,
+ const char *mount_point = nullptr);
+ bool set_mount_point(const char *mount_point, const char *dir);
+ 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_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<TaskQueue *(void)> new_task_queue;
+
+protected:
+ bool process_request(Stream &strm, bool close_connection,
+ bool &connection_closed,
+ const std::function<void(Request &)> &setup_request);
+
+ std::atomic<socket_t> svr_sock_;
+ size_t keep_alive_max_count_ = CPPHTTPLIB_KEEPALIVE_MAX_COUNT;
+ time_t read_timeout_sec_ = CPPHTTPLIB_READ_TIMEOUT_SECOND;
+ time_t read_timeout_usec_ = CPPHTTPLIB_READ_TIMEOUT_USECOND;
+ time_t write_timeout_sec_ = CPPHTTPLIB_WRITE_TIMEOUT_SECOND;
+ time_t write_timeout_usec_ = CPPHTTPLIB_WRITE_TIMEOUT_USECOND;
+ time_t idle_interval_sec_ = CPPHTTPLIB_IDLE_INTERVAL_SECOND;
+ time_t idle_interval_usec_ = CPPHTTPLIB_IDLE_INTERVAL_USECOND;
+ size_t payload_max_length_ = CPPHTTPLIB_PAYLOAD_MAX_LENGTH;
+
+private:
+ using Handlers = std::vector<std::pair<std::regex, Handler>>;
+ using HandlersForContentReader =
+ std::vector<std::pair<std::regex, HandlerWithContentReader>>;
+
+ socket_t create_server_socket(const 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, Handlers &handlers);
+ bool dispatch_request_for_content_reader(Request &req, Response &res,
+ ContentReader content_reader,
+ 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);
+
+ std::atomic<bool> is_running_;
+ std::vector<std::pair<std::string, std::string>> base_dirs_;
+ std::map<std::string, std::string> file_extension_and_mimetype_map_;
+ Handler file_request_handler_;
+ Handlers get_handlers_;
+ Handlers post_handlers_;
+ HandlersForContentReader post_handlers_for_content_reader_;
+ Handlers put_handlers_;
+ HandlersForContentReader put_handlers_for_content_reader_;
+ Handlers patch_handlers_;
+ HandlersForContentReader patch_handlers_for_content_reader_;
+ Handlers delete_handlers_;
+ HandlersForContentReader delete_handlers_for_content_reader_;
+ Handlers options_handlers_;
+ Handler error_handler_;
+ Logger logger_;
+ Expect100ContinueHandler expect_100_continue_handler_;
+
+ bool tcp_nodelay_ = CPPHTTPLIB_TCP_NODELAY;
+ SocketOptions socket_options_ = default_socket_options;
+};
+
+class Client {
+public:
+ explicit Client(const std::string &host);
+
+ 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);
+
+ virtual ~Client();
+
+ virtual bool is_valid() const;
+
+ std::shared_ptr<Response> Get(const char *path);
+
+ std::shared_ptr<Response> Get(const char *path, const Headers &headers);
+
+ std::shared_ptr<Response> Get(const char *path, Progress progress);
+
+ std::shared_ptr<Response> Get(const char *path, const Headers &headers,
+ Progress progress);
+
+ std::shared_ptr<Response> Get(const char *path,
+ ContentReceiver content_receiver);
+
+ std::shared_ptr<Response> Get(const char *path, const Headers &headers,
+ ContentReceiver content_receiver);
+
+ std::shared_ptr<Response>
+ Get(const char *path, ContentReceiver content_receiver, Progress progress);
+
+ std::shared_ptr<Response> Get(const char *path, const Headers &headers,
+ ContentReceiver content_receiver,
+ Progress progress);
+
+ std::shared_ptr<Response> Get(const char *path, const Headers &headers,
+ ResponseHandler response_handler,
+ ContentReceiver content_receiver);
+
+ std::shared_ptr<Response> Get(const char *path, const Headers &headers,
+ ResponseHandler response_handler,
+ ContentReceiver content_receiver,
+ Progress progress);
+
+ std::shared_ptr<Response> Head(const char *path);
+
+ std::shared_ptr<Response> Head(const char *path, const Headers &headers);
+
+ std::shared_ptr<Response> Post(const char *path);
+
+ std::shared_ptr<Response> Post(const char *path, const std::string &body,
+ const char *content_type);
+
+ std::shared_ptr<Response> Post(const char *path, const Headers &headers,
+ const std::string &body,
+ const char *content_type);
+
+ std::shared_ptr<Response> Post(const char *path, size_t content_length,
+ ContentProvider content_provider,
+ const char *content_type);
+
+ std::shared_ptr<Response> Post(const char *path, const Headers &headers,
+ size_t content_length,
+ ContentProvider content_provider,
+ const char *content_type);
+
+ std::shared_ptr<Response> Post(const char *path, const Params ¶ms);
+
+ std::shared_ptr<Response> Post(const char *path, const Headers &headers,
+ const Params ¶ms);
+
+ std::shared_ptr<Response> Post(const char *path,
+ const MultipartFormDataItems &items);
+
+ std::shared_ptr<Response> Post(const char *path, const Headers &headers,
+ const MultipartFormDataItems &items);
+
+ std::shared_ptr<Response> Put(const char *path);
+
+ std::shared_ptr<Response> Put(const char *path, const std::string &body,
+ const char *content_type);
+
+ std::shared_ptr<Response> Put(const char *path, const Headers &headers,
+ const std::string &body,
+ const char *content_type);
+
+ std::shared_ptr<Response> Put(const char *path, size_t content_length,
+ ContentProvider content_provider,
+ const char *content_type);
+
+ std::shared_ptr<Response> Put(const char *path, const Headers &headers,
+ size_t content_length,
+ ContentProvider content_provider,
+ const char *content_type);
+
+ std::shared_ptr<Response> Put(const char *path, const Params ¶ms);
+
+ std::shared_ptr<Response> Put(const char *path, const Headers &headers,
+ const Params ¶ms);
+
+ std::shared_ptr<Response> Patch(const char *path, const std::string &body,
+ const char *content_type);
+
+ std::shared_ptr<Response> Patch(const char *path, const Headers &headers,
+ const std::string &body,
+ const char *content_type);
+
+ std::shared_ptr<Response> Patch(const char *path, size_t content_length,
+ ContentProvider content_provider,
+ const char *content_type);
+
+ std::shared_ptr<Response> Patch(const char *path, const Headers &headers,
+ size_t content_length,
+ ContentProvider content_provider,
+ const char *content_type);
+
+ std::shared_ptr<Response> Delete(const char *path);
+
+ std::shared_ptr<Response> Delete(const char *path, const std::string &body,
+ const char *content_type);
+
+ std::shared_ptr<Response> Delete(const char *path, const Headers &headers);
+
+ std::shared_ptr<Response> Delete(const char *path, const Headers &headers,
+ const std::string &body,
+ const char *content_type);
+
+ std::shared_ptr<Response> Options(const char *path);
+
+ std::shared_ptr<Response> Options(const char *path, const Headers &headers);
+
+ bool send(const Request &req, Response &res);
+
+ size_t is_socket_open() const;
+
+ void stop();
+
+ void set_tcp_nodelay(bool on);
+ void set_socket_options(SocketOptions socket_options);
+
+ CPPHTTPLIB_DEPRECATED void set_timeout_sec(time_t timeout_sec);
+ 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);
+#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);
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+ void set_proxy_digest_auth(const char *username, const char *password);
+#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);
+
+ // 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_;
+
+ // 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_;
+#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_;
+
+ std::string proxy_basic_auth_username_;
+ std::string proxy_basic_auth_password_;
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+ std::string proxy_digest_auth_username_;
+ std::string proxy_digest_auth_password_;
+#endif
+
+ Logger logger_;
+
+ void copy_settings(const Client &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_;
+#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_;
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+ proxy_digest_auth_username_ = rhs.proxy_digest_auth_username_;
+ proxy_digest_auth_password_ = rhs.proxy_digest_auth_password_;
+#endif
+ logger_ = rhs.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);
+
+ std::shared_ptr<Response> 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<bool(Stream &strm)> callback);
+ virtual bool is_ssl() const;
+};
+
+inline void Get(std::vector<Request> &requests, const char *path,
+ const Headers &headers) {
+ Request req;
+ req.method = "GET";
+ req.path = path;
+ req.headers = headers;
+ requests.emplace_back(std::move(req));
+}
+
+inline void Get(std::vector<Request> &requests, const char *path) {
+ Get(requests, path, Headers());
+}
+
+inline void Post(std::vector<Request> &requests, const char *path,
+ const Headers &headers, const std::string &body,
+ const char *content_type) {
+ Request req;
+ req.method = "POST";
+ req.path = path;
+ req.headers = headers;
+ if (content_type) { req.headers.emplace("Content-Type", content_type); }
+ req.body = body;
+ requests.emplace_back(std::move(req));
+}
+
+inline void Post(std::vector<Request> &requests, const char *path,
+ const std::string &body, const char *content_type) {
+ Post(requests, path, Headers(), body, content_type);
+}
+
+inline void Post(std::vector<Request> &requests, const char *path,
+ size_t content_length, ContentProvider content_provider,
+ const char *content_type) {
+ Request req;
+ req.method = "POST";
+ req.headers = Headers();
+ req.path = path;
+ req.content_length = content_length;
+ req.content_provider = content_provider;
+
+ if (content_type) { req.headers.emplace("Content-Type", content_type); }
+
+ requests.emplace_back(std::move(req));
+}
+
+#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 Client {
+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);
+
+ void enable_server_certificate_verification(bool enabled);
+
+ 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<bool(Stream &strm)> 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<std::string> host_components_;
+
+ std::string ca_cert_file_path_;
+ std::string ca_cert_dir_path_;
+ X509_STORE *ca_cert_store_ = nullptr;
+ bool server_certificate_verification_ = true;
+ long verify_result_ = 0;
+
+ friend class Client;
+};
+#endif
+
+class Client2 {
+public:
+ explicit Client2(const char *scheme_host_port)
+ : Client2(scheme_host_port, std::string(), std::string()) {}
+
+ explicit Client2(const char *scheme_host_port,
+ const std::string &client_cert_path,
+ const std::string &client_key_path) {
+ const static std::regex re(R"(^(https?)://([^:/?#]+)(?::(\d+))?)");
+
+ std::cmatch m;
+ if (std::regex_match(scheme_host_port, m, re)) {
+ auto scheme = m[1].str();
+ auto host = m[2].str();
+ auto port_str = m[3].str();
+
+ auto port = !port_str.empty() ? std::stoi(port_str)
+ : (scheme == "https" ? 443 : 80);
+
+ if (scheme == "https") {
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+ is_ssl_ = true;
+ cli_ = std::make_shared<SSLClient>(host.c_str(), port, client_cert_path,
+ client_key_path);
+#endif
+ } else {
+ cli_ = std::make_shared<Client>(host.c_str(), port, client_cert_path,
+ client_key_path);
+ }
+ }
+ }
+
+ ~Client2() {}
+
+ bool is_valid() const { return cli_ != nullptr; }
+
+ std::shared_ptr<Response> Get(const char *path) { return cli_->Get(path); }
+
+ std::shared_ptr<Response> Get(const char *path, const Headers &headers) {
+ return cli_->Get(path, headers);
+ }
+
+ std::shared_ptr<Response> Get(const char *path, Progress progress) {
+ return cli_->Get(path, progress);
+ }
+
+ std::shared_ptr<Response> Get(const char *path, const Headers &headers,
+ Progress progress) {
+ return cli_->Get(path, headers, progress);
+ }
+
+ std::shared_ptr<Response> Get(const char *path,
+ ContentReceiver content_receiver) {
+ return cli_->Get(path, content_receiver);
+ }
+
+ std::shared_ptr<Response> Get(const char *path, const Headers &headers,
+ ContentReceiver content_receiver) {
+ return cli_->Get(path, headers, content_receiver);
+ }
+
+ std::shared_ptr<Response>
+ Get(const char *path, ContentReceiver content_receiver, Progress progress) {
+ return cli_->Get(path, content_receiver, progress);
+ }
+
+ std::shared_ptr<Response> Get(const char *path, const Headers &headers,
+ ContentReceiver content_receiver,
+ Progress progress) {
+ return cli_->Get(path, headers, content_receiver, progress);
+ }
+
+ std::shared_ptr<Response> Get(const char *path, const Headers &headers,
+ ResponseHandler response_handler,
+ ContentReceiver content_receiver) {
+ return cli_->Get(path, headers, response_handler, content_receiver);
+ }
+
+ std::shared_ptr<Response> Get(const char *path, const Headers &headers,
+ ResponseHandler response_handler,
+ ContentReceiver content_receiver,
+ Progress progress) {
+ return cli_->Get(path, headers, response_handler, content_receiver,
+ progress);
+ }
+
+ std::shared_ptr<Response> Head(const char *path) { return cli_->Head(path); }
+
+ std::shared_ptr<Response> Head(const char *path, const Headers &headers) {
+ return cli_->Head(path, headers);
+ }
+
+ std::shared_ptr<Response> Post(const char *path) { return cli_->Post(path); }
+
+ std::shared_ptr<Response> Post(const char *path, const std::string &body,
+ const char *content_type) {
+ return cli_->Post(path, body, content_type);
+ }
+
+ std::shared_ptr<Response> Post(const char *path, const Headers &headers,
+ const std::string &body,
+ const char *content_type) {
+ return cli_->Post(path, headers, body, content_type);
+ }
+
+ std::shared_ptr<Response> Post(const char *path, size_t content_length,
+ ContentProvider content_provider,
+ const char *content_type) {
+ return cli_->Post(path, content_length, content_provider, content_type);
+ }
+
+ std::shared_ptr<Response> 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, content_provider,
+ content_type);
+ }
+
+ std::shared_ptr<Response> Post(const char *path, const Params ¶ms) {
+ return cli_->Post(path, params);
+ }
+
+ std::shared_ptr<Response> Post(const char *path, const Headers &headers,
+ const Params ¶ms) {
+ return cli_->Post(path, headers, params);
+ }
+
+ std::shared_ptr<Response> Post(const char *path,
+ const MultipartFormDataItems &items) {
+ return cli_->Post(path, items);
+ }
+
+ std::shared_ptr<Response> Post(const char *path, const Headers &headers,
+ const MultipartFormDataItems &items) {
+ return cli_->Post(path, headers, items);
+ }
+
+ std::shared_ptr<Response> Put(const char *path) { return cli_->Put(path); }
+
+ std::shared_ptr<Response> Put(const char *path, const std::string &body,
+ const char *content_type) {
+ return cli_->Put(path, body, content_type);
+ }
+
+ std::shared_ptr<Response> Put(const char *path, const Headers &headers,
+ const std::string &body,
+ const char *content_type) {
+ return cli_->Put(path, headers, body, content_type);
+ }
+
+ std::shared_ptr<Response> Put(const char *path, size_t content_length,
+ ContentProvider content_provider,
+ const char *content_type) {
+ return cli_->Put(path, content_length, content_provider, content_type);
+ }
+
+ std::shared_ptr<Response> 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, content_provider,
+ content_type);
+ }
+
+ std::shared_ptr<Response> Put(const char *path, const Params ¶ms) {
+ return cli_->Put(path, params);
+ }
+
+ std::shared_ptr<Response> Put(const char *path, const Headers &headers,
+ const Params ¶ms) {
+ return cli_->Put(path, headers, params);
+ }
+
+ std::shared_ptr<Response> Patch(const char *path, const std::string &body,
+ const char *content_type) {
+ return cli_->Patch(path, body, content_type);
+ }
+
+ std::shared_ptr<Response> Patch(const char *path, const Headers &headers,
+ const std::string &body,
+ const char *content_type) {
+ return cli_->Patch(path, headers, body, content_type);
+ }
+
+ std::shared_ptr<Response> Patch(const char *path, size_t content_length,
+ ContentProvider content_provider,
+ const char *content_type) {
+ return cli_->Patch(path, content_length, content_provider, content_type);
+ }
+
+ std::shared_ptr<Response> 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, content_provider,
+ content_type);
+ }
+
+ std::shared_ptr<Response> Delete(const char *path) {
+ return cli_->Delete(path);
+ }
+
+ std::shared_ptr<Response> Delete(const char *path, const std::string &body,
+ const char *content_type) {
+ return cli_->Delete(path, body, content_type);
+ }
+
+ std::shared_ptr<Response> Delete(const char *path, const Headers &headers) {
+ return cli_->Delete(path, headers);
+ }
+
+ std::shared_ptr<Response> Delete(const char *path, const Headers &headers,
+ const std::string &body,
+ const char *content_type) {
+ return cli_->Delete(path, headers, body, content_type);
+ }
+
+ std::shared_ptr<Response> Options(const char *path) {
+ return cli_->Options(path);
+ }
+
+ std::shared_ptr<Response> Options(const char *path, const Headers &headers) {
+ return cli_->Options(path, headers);
+ }
+
+ bool send(const Request &req, Response &res) { return cli_->send(req, res); }
+
+ bool is_socket_open() { return cli_->is_socket_open(); }
+
+ void stop() { cli_->stop(); }
+
+ void set_tcp_nodelay(bool on) { cli_->set_tcp_nodelay(on); }
+
+ void set_socket_options(SocketOptions socket_options) {
+ cli_->set_socket_options(socket_options);
+ }
+
+ Client2 &set_connection_timeout(time_t sec, time_t usec) {
+ cli_->set_connection_timeout(sec, usec);
+ return *this;
+ }
+
+ Client2 &set_read_timeout(time_t sec, time_t usec) {
+ cli_->set_read_timeout(sec, usec);
+ return *this;
+ }
+
+ Client2 &set_basic_auth(const char *username, const char *password) {
+ cli_->set_basic_auth(username, password);
+ return *this;
+ }
+
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+ Client2 &set_digest_auth(const char *username, const char *password) {
+ cli_->set_digest_auth(username, password);
+ return *this;
+ }
+#endif
+
+ Client2 &set_keep_alive(bool on) {
+ cli_->set_keep_alive(on);
+ return *this;
+ }
+
+ Client2 &set_follow_location(bool on) {
+ cli_->set_follow_location(on);
+ return *this;
+ }
+
+ Client2 &set_compress(bool on) {
+ cli_->set_compress(on);
+ return *this;
+ }
+
+ Client2 &set_decompress(bool on) {
+ cli_->set_decompress(on);
+ return *this;
+ }
+
+ Client2 &set_interface(const char *intf) {
+ cli_->set_interface(intf);
+ return *this;
+ }
+
+ Client2 &set_proxy(const char *host, int port) {
+ cli_->set_proxy(host, port);
+ return *this;
+ }
+
+ Client2 &set_proxy_basic_auth(const char *username, const char *password) {
+ cli_->set_proxy_basic_auth(username, password);
+ return *this;
+ }
+
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+ Client2 &set_proxy_digest_auth(const char *username, const char *password) {
+ cli_->set_proxy_digest_auth(username, password);
+ return *this;
+ }
+#endif
+
+ Client2 &set_logger(Logger logger) {
+ cli_->set_logger(logger);
+ return *this;
+ }
+
+ // SSL
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+ Client2 &set_ca_cert_path(const char *ca_cert_file_path,
+ const char *ca_cert_dir_path = nullptr) {
+ if (is_ssl_) {
+ static_cast<SSLClient &>(*cli_).set_ca_cert_path(ca_cert_file_path,
+ ca_cert_dir_path);
+ }
+ return *this;
+ }
+
+ Client2 &set_ca_cert_store(X509_STORE *ca_cert_store) {
+ if (is_ssl_) {
+ static_cast<SSLClient &>(*cli_).set_ca_cert_store(ca_cert_store);
+ }
+ return *this;
+ }
+
+ Client2 &enable_server_certificate_verification(bool enabled) {
+ if (is_ssl_) {
+ static_cast<SSLClient &>(*cli_).enable_server_certificate_verification(
+ enabled);
+ }
+ return *this;
+ }
+
+ long get_openssl_verify_result() const {
+ if (is_ssl_) {
+ return static_cast<SSLClient &>(*cli_).get_openssl_verify_result();
+ }
+ return -1; // NOTE: -1 doesn't match any of X509_V_ERR_???
+ }
+
+ SSL_CTX *ssl_context() const {
+ if (is_ssl_) { return static_cast<SSLClient &>(*cli_).ssl_context(); }
+ return nullptr;
+ }
+#endif
+
+private:
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+ bool is_ssl_ = false;
+#endif
+ std::shared_ptr<Client> cli_;
+};
+
+// ----------------------------------------------------------------------------
+
+/*
+ * 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 size_t to_utf8(int code, char *buff) {
+ if (code < 0x0080) {
+ buff[0] = (code & 0x7F);
+ return 1;
+ } else if (code < 0x0800) {
+ buff[0] = static_cast<char>(0xC0 | ((code >> 6) & 0x1F));
+ buff[1] = static_cast<char>(0x80 | (code & 0x3F));
+ return 2;
+ } else if (code < 0xD800) {
+ buff[0] = static_cast<char>(0xE0 | ((code >> 12) & 0xF));
+ buff[1] = static_cast<char>(0x80 | ((code >> 6) & 0x3F));
+ buff[2] = static_cast<char>(0x80 | (code & 0x3F));
+ return 3;
+ } else if (code < 0xE000) { // D800 - DFFF is invalid...
+ return 0;
+ } else if (code < 0x10000) {
+ buff[0] = static_cast<char>(0xE0 | ((code >> 12) & 0xF));
+ buff[1] = static_cast<char>(0x80 | ((code >> 6) & 0x3F));
+ buff[2] = static_cast<char>(0x80 | (code & 0x3F));
+ return 3;
+ } else if (code < 0x110000) {
+ buff[0] = static_cast<char>(0xF0 | ((code >> 18) & 0x7));
+ buff[1] = static_cast<char>(0x80 | ((code >> 12) & 0x3F));
+ buff[2] = static_cast<char>(0x80 | ((code >> 6) & 0x3F));
+ buff[3] = static_cast<char>(0x80 | (code & 0x3F));
+ return 4;
+ }
+
+ // NOTREACHED
+ return 0;
+}
+
+// NOTE: This code came up with the following stackoverflow post:
+// https://stackoverflow.com/questions/180947/base64-decode-snippet-in-c
+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<uint8_t>(c);
+ valb += 8;
+ while (valb >= 0) {
+ out.push_back(lookup[(val >> valb) & 0x3F]);
+ valb -= 6;
+ }
+ }
+
+ if (valb > -6) { out.push_back(lookup[((val << 8) >> (valb + 8)) & 0x3F]); }
+
+ while (out.size() % 4) {
+ out.push_back('=');
+ }
+
+ return out;
+}
+
+inline bool is_file(const std::string &path) {
+ struct stat st;
+ return stat(path.c_str(), &st) >= 0 && S_ISREG(st.st_mode);
+}
+
+inline bool is_dir(const std::string &path) {
+ struct stat st;
+ return stat(path.c_str(), &st) >= 0 && S_ISDIR(st.st_mode);
+}
+
+inline bool is_valid_path(const std::string &path) {
+ size_t level = 0;
+ size_t i = 0;
+
+ // Skip slash
+ while (i < path.size() && path[i] == '/') {
+ i++;
+ }
+
+ while (i < path.size()) {
+ // Read component
+ auto beg = i;
+ while (i < path.size() && path[i] != '/') {
+ i++;
+ }
+
+ auto len = i - beg;
+ assert(len > 0);
+
+ if (!path.compare(beg, len, ".")) {
+ ;
+ } else if (!path.compare(beg, len, "..")) {
+ if (level == 0) { return false; }
+ level--;
+ } else {
+ level++;
+ }
+
+ // Skip slash
+ while (i < path.size() && path[i] == '/') {
+ i++;
+ }
+ }
+
+ return true;
+}
+
+inline void read_file(const std::string &path, std::string &out) {
+ std::ifstream fs(path, std::ios_base::binary);
+ fs.seekg(0, std::ios_base::end);
+ auto size = fs.tellg();
+ fs.seekg(0);
+ out.resize(static_cast<size_t>(size));
+ fs.read(&out[0], static_cast<std::streamsize>(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();
+}
+
+template <class Fn> void split(const char *b, const char *e, char d, Fn fn) {
+ int i = 0;
+ int beg = 0;
+
+ while (e ? (b + i != e) : (b[i] != '\0')) {
+ if (b[i] == d) {
+ fn(&b[beg], &b[i]);
+ beg = i + 1;
+ }
+ i++;
+ }
+
+ if (i) { fn(&b[beg], &b[i]); }
+}
+
+// NOTE: until the read size reaches `fixed_buffer_size`, use `fixed_buffer`
+// to store data. The call can set memory on stack for performance.
+class stream_line_reader {
+public:
+ stream_line_reader(Stream &strm, char *fixed_buffer, size_t fixed_buffer_size)
+ : strm_(strm), fixed_buffer_(fixed_buffer),
+ fixed_buffer_size_(fixed_buffer_size) {}
+
+ const char *ptr() const {
+ if (glowable_buffer_.empty()) {
+ return fixed_buffer_;
+ } else {
+ return glowable_buffer_.data();
+ }
+ }
+
+ 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 <typename T> 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<int>(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<long>(sec);
+ tv.tv_usec = static_cast<decltype(tv.tv_usec)>(usec);
+
+ return handle_EINTR([&]() {
+ return select(static_cast<int>(sock + 1), &fds, nullptr, nullptr, &tv);
+ });
+#endif
+}
+
+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<int>(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<long>(sec);
+ tv.tv_usec = static_cast<decltype(tv.tv_usec)>(usec);
+
+ return handle_EINTR([&]() {
+ return select(static_cast<int>(sock + 1), nullptr, &fds, nullptr, &tv);
+ });
+#endif
+}
+
+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<int>(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<char *>(&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<long>(sec);
+ tv.tv_usec = static_cast<decltype(tv.tv_usec)>(usec);
+
+ auto ret = handle_EINTR([&]() {
+ return select(static_cast<int>(sock + 1), &fdsr, &fdsw, &fdse, &tv);
+ });
+
+ if (ret > 0 && (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<char *>(&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) {
+ using namespace std::chrono;
+ auto start = steady_clock::now();
+ while (true) {
+ auto val = select_read(sock, 0, 10000);
+ if (val < 0) {
+ return false;
+ } else if (val == 0) {
+ auto current = steady_clock::now();
+ auto duration = duration_cast<milliseconds>(current - start);
+ auto timeout = CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND * 1000 +
+ CPPHTTPLIB_KEEPALIVE_TIMEOUT_USECOND / 1000;
+ if (duration.count() > timeout) { return false; }
+ std::this_thread::sleep_for(std::chrono::milliseconds(1));
+ } else {
+ return true;
+ }
+ }
+}
+
+template <typename T>
+inline bool process_server_socket_core(socket_t sock,
+ size_t keep_alive_max_count,
+ T callback) {
+ assert(keep_alive_max_count > 0);
+ auto ret = false;
+ auto count = keep_alive_max_count;
+ while (count > 0 && keep_alive(sock)) {
+ auto close_connection = count == 1;
+ auto connection_closed = false;
+ ret = callback(close_connection, connection_closed);
+ if (!ret || connection_closed) { break; }
+ count--;
+ }
+ return ret;
+}
+
+template <typename T>
+inline bool process_server_socket(socket_t sock, size_t keep_alive_max_count,
+ 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,
+ [&](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 <typename T>
+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 <typename BindOrConnect>
+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)) {
+ 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<char *>(&yes),
+ sizeof(yes));
+ }
+
+ if (socket_options) { socket_options(sock); }
+
+ if (rp->ai_family == AF_INET6) {
+ int no = 0;
+ setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY, reinterpret_cast<char *>(&no),
+ sizeof(no));
+ }
+
+ // bind or connect
+ if (bind_or_connect(sock, *rp)) {
+ freeaddrinfo(result);
+ return sock;
+ }
+
+ close_socket(sock);
+ }
+
+ freeaddrinfo(result);
+ return INVALID_SOCKET;
+}
+
+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<socklen_t>(ai.ai_addrlen))) {
+ ret = true;
+ break;
+ }
+ }
+
+ freeaddrinfo(result);
+ return ret;
+}
+
+#ifndef _WIN32
+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<struct sockaddr_in *>(ifa->ifa_addr);
+ char buf[INET_ADDRSTRLEN];
+ if (inet_ntop(AF_INET, &sa->sin_addr, buf, INET_ADDRSTRLEN)) {
+ freeifaddrs(ifap);
+ return std::string(buf, INET_ADDRSTRLEN);
+ }
+ }
+ }
+ }
+ 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) {
+ return create_socket(
+ host, port, 0, tcp_nodelay, socket_options,
+ [&](socket_t sock, struct addrinfo &ai) -> bool {
+ if (!intf.empty()) {
+#ifndef _WIN32
+ auto ip = if2ip(intf);
+ if (ip.empty()) { ip = intf; }
+ if (!bind_ip_address(sock, ip.c_str())) { return false; }
+#endif
+ }
+
+ set_nonblocking(sock, true);
+
+ auto ret =
+ ::connect(sock, ai.ai_addr, static_cast<socklen_t>(ai.ai_addrlen));
+ if (ret < 0) {
+ if (is_connection_error() ||
+ !wait_until_socket_is_ready(sock, timeout_sec, timeout_usec)) {
+ close_socket(sock);
+ return false;
+ }
+ }
+
+ set_nonblocking(sock, false);
+ return true;
+ });
+}
+
+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<const struct sockaddr_in *>(&addr)->sin_port);
+ } else if (addr.ss_family == AF_INET6) {
+ port =
+ ntohs(reinterpret_cast<const struct sockaddr_in6 *>(&addr)->sin6_port);
+ }
+
+ std::array<char, NI_MAXHOST> ipstr{};
+ if (!getnameinfo(reinterpret_cast<const struct sockaddr *>(&addr), addr_len,
+ ipstr.data(), static_cast<socklen_t>(ipstr.size()), nullptr,
+ 0, NI_NUMERICHOST)) {
+ 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<struct sockaddr *>(&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<std::string, std::string> &user_data) {
+ auto ext = file_extension(path);
+
+ auto it = user_data.find(ext);
+ if (it != user_data.end()) { return it->second.c_str(); }
+
+ 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";
+ }
+}
+
+#ifdef CPPHTTPLIB_ZLIB_SUPPORT
+inline bool can_compress(const std::string &content_type) {
+ return !content_type.find("text/") || content_type == "image/svg+xml" ||
+ content_type == "application/javascript" ||
+ content_type == "application/json" ||
+ content_type == "application/xml" ||
+ content_type == "application/xhtml+xml";
+}
+
+inline bool compress(std::string &content) {
+ z_stream strm;
+ strm.zalloc = Z_NULL;
+ strm.zfree = Z_NULL;
+ strm.opaque = Z_NULL;
+
+ auto ret = deflateInit2(&strm, Z_DEFAULT_COMPRESSION, Z_DEFLATED, 31, 8,
+ Z_DEFAULT_STRATEGY);
+ if (ret != Z_OK) { return false; }
+
+ strm.avail_in = static_cast<decltype(strm.avail_in)>(content.size());
+ strm.next_in =
+ const_cast<Bytef *>(reinterpret_cast<const Bytef *>(content.data()));
+
+ std::string compressed;
+
+ std::array<char, 16384> buff{};
+ do {
+ strm.avail_out = buff.size();
+ strm.next_out = reinterpret_cast<Bytef *>(buff.data());
+ ret = deflate(&strm, Z_FINISH);
+ assert(ret != Z_STREAM_ERROR);
+ compressed.append(buff.data(), buff.size() - strm.avail_out);
+ } while (strm.avail_out == 0);
+
+ assert(ret == Z_STREAM_END);
+ assert(strm.avail_in == 0);
+
+ content.swap(compressed);
+
+ deflateEnd(&strm);
+ return true;
+}
+
+class decompressor {
+public:
+ 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;
+ }
+
+ ~decompressor() { inflateEnd(&strm); }
+
+ bool is_valid() const { return is_valid_; }
+
+ template <typename T>
+ bool decompress(const char *data, size_t data_length, T callback) {
+ int ret = Z_OK;
+
+ strm.avail_in = static_cast<decltype(strm.avail_in)>(data_length);
+ strm.next_in = const_cast<Bytef *>(reinterpret_cast<const Bytef *>(data));
+
+ std::array<char, 16384> buff{};
+ do {
+ strm.avail_out = buff.size();
+ strm.next_out = reinterpret_cast<Bytef *>(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;
+ }
+ } while (strm.avail_out == 0);
+
+ return ret == Z_OK || ret == Z_STREAM_END;
+ }
+
+private:
+ bool is_valid_;
+ z_stream strm;
+};
+#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<ssize_t>(id));
+ if (it != rng.second) { return it->second.c_str(); }
+ return def;
+}
+
+inline uint64_t get_header_value_uint64(const Headers &headers, const char *key,
+ uint64_t def = 0) {
+ auto it = headers.find(key);
+ if (it != headers.end()) {
+ return std::strtoull(it->second.data(), nullptr, 10);
+ }
+ return def;
+}
+
+inline void parse_header(const char *beg, const char *end, Headers &headers) {
+ auto p = beg;
+ while (p < end && *p != ':') {
+ p++;
+ }
+ if (p < end) {
+ auto key_end = p;
+ p++; // skip ':'
+ while (p < end && (*p == ' ' || *p == '\t')) {
+ p++;
+ }
+ if (p < end) {
+ auto val_begin = p;
+ while (p < end) {
+ p++;
+ }
+ headers.emplace(std::string(beg, key_end), std::string(val_begin, end));
+ }
+ }
+}
+
+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.
+ }
+
+ // Skip trailing spaces and tabs.
+ auto end = line_reader.ptr() + line_reader.size() - 2;
+ while (line_reader.ptr() < end && (end[-1] == ' ' || end[-1] == '\t')) {
+ end--;
+ }
+
+ parse_header(line_reader.ptr(), end, headers);
+ }
+
+ 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<size_t>(len - r);
+ auto n = strm.read(buf, (std::min)(read_len, CPPHTTPLIB_RECV_BUFSIZ));
+ if (n <= 0) { return false; }
+
+ if (!out(buf, static_cast<size_t>(n))) { return false; }
+
+ r += static_cast<uint64_t>(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<size_t>(len - r);
+ auto n = strm.read(buf, (std::min)(read_len, CPPHTTPLIB_RECV_BUFSIZ));
+ if (n <= 0) { return; }
+ r += static_cast<uint64_t>(n);
+ }
+}
+
+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<size_t>(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 <typename T>
+bool read_content(Stream &strm, T &x, size_t payload_max_length, int &status,
+ Progress progress, ContentReceiver receiver,
+ bool decompress) {
+
+ ContentReceiver out = [&](const char *buf, size_t n) {
+ return receiver(buf, n);
+ };
+
+#ifdef CPPHTTPLIB_ZLIB_SUPPORT
+ decompressor decompressor;
+#endif
+
+ if (decompress) {
+#ifdef CPPHTTPLIB_ZLIB_SUPPORT
+ std::string content_encoding = x.get_header_value("Content-Encoding");
+ if (content_encoding.find("gzip") != std::string::npos ||
+ content_encoding.find("deflate") != std::string::npos) {
+ if (!decompressor.is_valid()) {
+ status = 500;
+ return false;
+ }
+
+ out = [&](const char *buf, size_t n) {
+ return decompressor.decompress(buf, n, [&](const char *buf, size_t n) {
+ return receiver(buf, n);
+ });
+ };
+ }
+#else
+ if (x.get_header_value("Content-Encoding") == "gzip") {
+ status = 415;
+ return false;
+ }
+#endif
+ }
+
+ auto ret = true;
+ auto exceed_payload_max_length = false;
+
+ if (is_chunked_transfer_encoding(x.headers)) {
+ ret = read_content_chunked(strm, out);
+ } else if (!has_header(x.headers, "Content-Length")) {
+ ret = read_content_without_length(strm, out);
+ } else {
+ auto len = get_header_value_uint64(x.headers, "Content-Length", 0);
+ 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, progress, out);
+ }
+ }
+
+ if (!ret) { status = exceed_payload_max_length ? 413 : 400; }
+ return ret;
+}
+
+template <typename T>
+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<size_t>(length);
+ }
+ return true;
+}
+
+template <typename T>
+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 (ok && offset < end_offset && !is_shutting_down()) {
+ if (!content_provider(offset, end_offset - offset, data_sink)) {
+ return -1;
+ }
+ if (!ok) { return -1; }
+ }
+
+ return static_cast<ssize_t>(offset - begin_offset);
+}
+
+template <typename T>
+inline ssize_t write_content_chunked(Stream &strm,
+ ContentProvider content_provider,
+ T is_shutting_down) {
+ 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) {
+ data_available = l > 0;
+ offset += l;
+
+ // Emit chunked response header and footer for each chunk
+ auto chunk = from_i_to_hex(l) + "\r\n" + std::string(d, l) + "\r\n";
+ if (write_data(strm, chunk.data(), chunk.size())) {
+ total_written_length += chunk.size();
+ } else {
+ ok = false;
+ }
+ }
+ };
+ data_sink.done = [&](void) {
+ data_available = false;
+ if (ok) {
+ 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 <typename T>
+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 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<uint8_t>(s[i]);
+ if (c >= 0x80) {
+ result += '%';
+ char hex[4];
+ auto len = snprintf(hex, sizeof(hex) - 1, "%02X", c);
+ assert(len == 2);
+ result.append(hex, static_cast<size_t>(len));
+ } else {
+ result += s[i];
+ }
+ break;
+ }
+ }
+
+ return result;
+}
+
+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<char>(val);
+ i += 2; // '00'
+ } else {
+ result += s[i];
+ }
+ }
+ } else if (convert_plus_to_space && s[i] == '+') {
+ result += ' ';
+ } else {
+ result += s[i];
+ }
+ }
+
+ return result;
+}
+
+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[0], &s[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);
+ }
+ });
+ 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<size_t>(m.position(1));
+ auto len = static_cast<size_t>(m.length(1));
+ bool all_valid_ranges = true;
+ split(&s[pos], &s[pos + len], ',', [&](const char *b, const char *e) {
+ if (!all_valid_ranges) return;
+ static auto re_another_range = std::regex(R"(\s*(\d*)-(\d*))");
+ std::cmatch cm;
+ if (std::regex_match(b, e, cm, re_another_range)) {
+ ssize_t first = -1;
+ if (!cm.str(1).empty()) {
+ first = static_cast<ssize_t>(std::stoll(cm.str(1)));
+ }
+
+ ssize_t last = -1;
+ if (!cm.str(2).empty()) {
+ last = static_cast<ssize_t>(std::stoll(cm.str(2)));
+ }
+
+ if (first != -1 && last != -1 && first > last) {
+ all_valid_ranges = false;
+ return;
+ }
+ ranges.emplace_back(std::make_pair(first, last));
+ }
+ });
+ return all_valid_ranges;
+ }
+ return false;
+}
+
+class MultipartFormDataParser {
+public:
+ MultipartFormDataParser() = default;
+
+ void set_boundary(std::string &&boundary) { boundary_ = boundary; }
+
+ bool is_valid() const { return is_valid_; }
+
+ template <typename T, typename U>
+ bool parse(const char *buf, size_t n, T content_callback, U header_callback) {
+ static const std::regex re_content_type(R"(^Content-Type:\s*(.*?)\s*$)",
+ std::regex_constants::icase);
+
+ 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;
+ }
+
+ auto header = buf_.substr(0, pos);
+ {
+ std::smatch m;
+ if (std::regex_match(header, m, re_content_type)) {
+ file_.content_type = m[1];
+ } else if (std::regex_match(header, m, re_content_disposition)) {
+ 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_.find(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_.find(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<char>(::tolower(*it));
+ it++;
+ }
+ return out;
+}
+
+inline std::string make_multipart_data_boundary() {
+ static const char data[] =
+ "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
+
+ std::random_device seed_gen;
+ std::mt19937 engine(seed_gen());
+
+ 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<size_t, size_t>
+get_range_offset_and_length(const Request &req, size_t content_length,
+ size_t index) {
+ auto r = req.ranges[index];
+
+ if (r.first == -1 && r.second == -1) {
+ return std::make_pair(0, content_length);
+ }
+
+ auto slen = static_cast<ssize_t>(content_length);
+
+ if (r.first == -1) {
+ r.first = 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 <typename SToken, typename CToken, typename Content>
+bool process_multipart_ranges_data(const Request &req, Response &res,
+ const std::string &boundary,
+ const std::string &content_type,
+ SToken stoken, CToken ctoken,
+ Content content) {
+ for (size_t i = 0; i < req.ranges.size(); i++) {
+ ctoken("--");
+ stoken(boundary);
+ ctoken("\r\n");
+ if (!content_type.empty()) {
+ ctoken("Content-Type: ");
+ stoken(content_type);
+ ctoken("\r\n");
+ }
+
+ auto offsets = get_range_offset_and_length(req, res.body.size(), i);
+ auto offset = offsets.first;
+ auto length = offsets.second;
+
+ ctoken("Content-Range: ");
+ stoken(make_content_range_header_field(offset, length, res.body.size()));
+ ctoken("\r\n");
+ ctoken("\r\n");
+ if (!content(offset, length)) { return false; }
+ ctoken("\r\n");
+ }
+
+ ctoken("--");
+ stoken(boundary);
+ ctoken("--\r\n");
+
+ return true;
+}
+
+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 <typename T>
+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<size_t, size_t>
+get_range_offset_and_length(const Request &req, const Response &res,
+ size_t index) {
+ auto r = req.ranges[index];
+
+ if (r.second == -1) {
+ r.second = static_cast<ssize_t>(res.content_length_) - 1;
+ }
+
+ return std::make_pair(r.first, r.second - r.first + 1);
+}
+
+inline bool expect_content(const Request &req) {
+ if (req.method == "POST" || req.method == "PUT" || req.method == "PATCH" ||
+ req.method == "PRI" ||
+ (req.method == "DELETE" && req.has_header("Content-Length"))) {
+ 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 <typename CTX, typename Init, typename Update, typename Final>
+inline std::string message_digest(const std::string &s, Init init,
+ Update update, Final final,
+ size_t digest_length) {
+ using namespace std;
+
+ std::vector<unsigned char> 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<MD5_CTX>(s, MD5_Init, MD5_Update, MD5_Final,
+ MD5_DIGEST_LENGTH);
+}
+
+inline std::string SHA_256(const std::string &s) {
+ return message_digest<SHA256_CTX>(s, SHA256_Init, SHA256_Update, SHA256_Final,
+ SHA256_DIGEST_LENGTH);
+}
+
+inline std::string SHA_512(const std::string &s) {
+ return message_digest<SHA512_CTX>(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<const unsigned char *>(pContext->pbCertEncoded);
+
+ auto x509 = d2i_X509(NULL, &encoded_cert, pContext->cbCertEncoded);
+ if (x509) {
+ X509_STORE_add_cert(store, x509);
+ X509_free(x509);
+ }
+ }
+
+ CertFreeCertificateContext(pContext);
+ CertCloseStore(hStore, 0);
+
+ return true;
+}
+#endif
+
+class WSInit {
+public:
+ WSInit() {
+ WSADATA wsaData;
+ WSAStartup(0x0002, &wsaData);
+ }
+
+ ~WSInit() { WSACleanup(); }
+};
+
+static WSInit wsinit_;
+#endif
+
+} // namespace detail
+
+// Header utilities
+inline std::pair<std::string, std::string> make_range_header(Ranges ranges) {
+ std::string field = "bytes=";
+ auto i = 0;
+ for (auto r : ranges) {
+ if (i != 0) { field += ", "; }
+ if (r.first != -1) { field += std::to_string(r.first); }
+ field += '-';
+ if (r.second != -1) { field += std::to_string(r.second); }
+ i++;
+ }
+ return std::make_pair("Range", field);
+}
+
+inline std::pair<std::string, std::string>
+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, field);
+}
+
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+inline std::pair<std::string, std::string> make_digest_authentication_header(
+ const Request &req, const std::map<std::string, std::string> &auth,
+ size_t cnonce_count, const std::string &cnonce, const std::string &username,
+ const std::string &password, bool is_proxy = false) {
+ 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<std::string, std::string> &auth,
+ bool is_proxy) {
+ auto auth_key = is_proxy ? "Proxy-Authenticate" : "WWW-Authenticate";
+ if (res.has_header(auth_key)) {
+ static auto re = std::regex(R"~((?:(?:,\s*)?(.+?)=(?:"(.*?)"|([^,]*))))~");
+ auto s = res.get_header_value(auth_key);
+ auto pos = s.find(' ');
+ if (pos != std::string::npos) {
+ auto type = s.substr(0, pos);
+ if (type == "Basic") {
+ return false;
+ } else if (type == "Digest") {
+ s = s.substr(pos + 1);
+ auto beg = std::sregex_iterator(s.begin(), s.end(), re);
+ for (auto i = beg; i != std::sregex_iterator(); ++i) {
+ auto m = *i;
+ auto key = s.substr(static_cast<size_t>(m.position(1)),
+ static_cast<size_t>(m.length(1)));
+ auto val = m.length(2) > 0
+ ? s.substr(static_cast<size_t>(m.position(2)),
+ static_cast<size_t>(m.length(2)))
+ : s.substr(static_cast<size_t>(m.position(3)),
+ static_cast<size_t>(m.length(3)));
+ auth[key] = val;
+ }
+ return true;
+ }
+ }
+ }
+ return false;
+}
+
+// https://stackoverflow.com/questions/440133/how-do-i-create-a-random-alpha-numeric-string-in-c/440240#answer-440240
+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<size_t>(rand()) % max_index];
+ };
+ std::string str(length, 0);
+ std::generate_n(str.begin(), length, randchar);
+ return str;
+}
+
+// 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, "");
+}
+
+inline size_t Request::get_header_value_count(const char *key) const {
+ auto r = headers.equal_range(key);
+ return static_cast<size_t>(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<ssize_t>(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<size_t>(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, "");
+}
+
+inline size_t Response::get_header_value_count(const char *key) const {
+ auto r = headers.equal_range(key);
+ return static_cast<size_t>(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_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, ContentProvider provider,
+ std::function<void()> resource_releaser) {
+ assert(in_length > 0);
+ content_length_ = in_length;
+ content_provider_ = [provider](size_t offset, size_t length, DataSink &sink) {
+ return provider(offset, length, sink);
+ };
+ content_provider_resource_releaser_ = resource_releaser;
+}
+
+inline void Response::set_chunked_content_provider(
+ ChunkedContentProvider provider, std::function<void()> resource_releaser) {
+ content_length_ = 0;
+ content_provider_ = [provider](size_t offset, size_t, DataSink &sink) {
+ return provider(offset, sink);
+ };
+ content_provider_resource_releaser_ = resource_releaser;
+}
+
+// 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 <typename... Args>
+inline ssize_t Stream::write_format(const char *fmt, const Args &... args) {
+ const auto bufsiz = 2048;
+ std::array<char, bufsiz> buf;
+
+#if defined(_MSC_VER) && _MSC_VER < 1900
+ auto sn = _snprintf_s(buf, 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<size_t>(sn);
+
+ if (n >= buf.size() - 1) {
+ std::vector<char> glowable_buf(buf.size());
+
+ while (n >= glowable_buf.size() - 1) {
+ glowable_buf.resize(glowable_buf.size() * 2);
+#if defined(_MSC_VER) && _MSC_VER < 1900
+ n = static_cast<size_t>(_snprintf_s(&glowable_buf[0], glowable_buf.size(),
+ glowable_buf.size() - 1, fmt,
+ args...));
+#else
+ n = static_cast<size_t>(
+ 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<size_t>((std::numeric_limits<int>::max)())) {
+ return -1;
+ }
+ return recv(sock_, ptr, static_cast<int>(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<size_t>((std::numeric_limits<int>::max)())) {
+ return -1;
+ }
+ return send(sock_, ptr, static_cast<int>(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<size_t>(len_read);
+ return static_cast<ssize_t>(len_read);
+}
+
+inline ssize_t BufferStream::write(const char *ptr, size_t size) {
+ buffer.append(ptr, size);
+ return static_cast<ssize_t>(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() : svr_sock_(INVALID_SOCKET), is_running_(false) {
+#ifndef _WIN32
+ signal(SIGPIPE, SIG_IGN);
+#endif
+ new_task_queue = [] { return new ThreadPool(CPPHTTPLIB_THREAD_POOL_COUNT); };
+}
+
+inline Server::~Server() {}
+
+inline Server &Server::Get(const char *pattern, Handler handler) {
+ get_handlers_.push_back(std::make_pair(std::regex(pattern), handler));
+ return *this;
+}
+
+inline Server &Server::Post(const char *pattern, Handler handler) {
+ post_handlers_.push_back(std::make_pair(std::regex(pattern), handler));
+ return *this;
+}
+
+inline Server &Server::Post(const char *pattern,
+ HandlerWithContentReader handler) {
+ post_handlers_for_content_reader_.push_back(
+ std::make_pair(std::regex(pattern), handler));
+ return *this;
+}
+
+inline Server &Server::Put(const char *pattern, Handler handler) {
+ put_handlers_.push_back(std::make_pair(std::regex(pattern), handler));
+ return *this;
+}
+
+inline Server &Server::Put(const char *pattern,
+ HandlerWithContentReader handler) {
+ put_handlers_for_content_reader_.push_back(
+ std::make_pair(std::regex(pattern), handler));
+ return *this;
+}
+
+inline Server &Server::Patch(const char *pattern, Handler handler) {
+ patch_handlers_.push_back(std::make_pair(std::regex(pattern), 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), handler));
+ return *this;
+}
+
+inline Server &Server::Delete(const char *pattern, Handler handler) {
+ delete_handlers_.push_back(std::make_pair(std::regex(pattern), handler));
+ return *this;
+}
+
+inline Server &Server::Delete(const char *pattern,
+ HandlerWithContentReader handler) {
+ delete_handlers_for_content_reader_.push_back(
+ std::make_pair(std::regex(pattern), handler));
+ return *this;
+}
+
+inline Server &Server::Options(const char *pattern, Handler handler) {
+ options_handlers_.push_back(std::make_pair(std::regex(pattern), handler));
+ return *this;
+}
+
+inline bool Server::set_base_dir(const char *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) {
+ if (detail::is_dir(dir)) {
+ std::string mnt = mount_point ? mount_point : "/";
+ if (!mnt.empty() && mnt[0] == '/') {
+ base_dirs_.emplace_back(mnt, dir);
+ 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->first == 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_ = 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_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<socket_t> 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");
+ }
+
+ if (!close_connection && req.get_header_value("Connection") == "Keep-Alive") {
+ res.set_header("Connection", "Keep-Alive");
+ }
+
+ if (!res.has_header("Content-Type") &&
+ (!res.body.empty() || res.content_length_ > 0)) {
+ 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);
+ }
+
+ 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_) {
+ res.set_header("Transfer-Encoding", "chunked");
+ } 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);
+ }
+
+#ifdef CPPHTTPLIB_ZLIB_SUPPORT
+ // TODO: 'Accept-Encoding' has gzip, not gzip;q=0
+ const auto &encodings = req.get_header_value("Accept-Encoding");
+ if (encodings.find("gzip") != std::string::npos &&
+ detail::can_compress(res.get_header_value("Content-Type"))) {
+ if (detail::compress(res.body)) {
+ res.set_header("Content-Encoding", "gzip");
+ }
+ }
+#endif
+
+ 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_) {
+ 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 (detail::write_content_chunked(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, receiver, multipart_header,
+ 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<size_t>(1, n - pos);
+ auto ret = multipart_form_data_parser.parse(
+ buf + pos, read_size, multipart_receiver, mulitpart_header);
+ if (!ret) { return false; }
+ pos += read_size;
+ }
+ return true;
+ */
+ return multipart_form_data_parser.parse(buf, n, multipart_receiver,
+ mulitpart_header);
+ };
+ } else {
+ out = receiver;
+ }
+
+ if (!detail::read_content(strm, req, payload_max_length_, res.status,
+ Progress(), 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 &kv : base_dirs_) {
+ const auto &mount_point = kv.first;
+ const auto &base_dir = kv.second;
+
+ // Prefix match
+ if (!req.path.find(mount_point)) {
+ std::string sub_path = "/" + req.path.substr(mount_point.size());
+ if (detail::is_valid_path(sub_path)) {
+ auto path = 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); }
+ 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_, socket_options,
+ [](socket_t sock, struct addrinfo &ai) -> bool {
+ if (::bind(sock, ai.ai_addr, static_cast<socklen_t>(ai.ai_addrlen))) {
+ return false;
+ }
+ if (::listen(sock, 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<struct sockaddr *>(&addr),
+ &addr_len) == -1) {
+ return -1;
+ }
+ if (addr.ss_family == AF_INET) {
+ return ntohs(reinterpret_cast<struct sockaddr_in *>(&addr)->sin_port);
+ } else if (addr.ss_family == AF_INET6) {
+ return ntohs(reinterpret_cast<struct sockaddr_in6 *>(&addr)->sin6_port);
+ } else {
+ return -1;
+ }
+ } else {
+ return port;
+ }
+}
+
+inline bool Server::listen_internal() {
+ auto ret = true;
+ is_running_ = true;
+
+ {
+ std::unique_ptr<TaskQueue> task_queue(new_task_queue());
+
+ while (svr_sock_ != INVALID_SOCKET) {
+#ifndef _WIN32
+ if (idle_interval_sec_ > 0 || idle_interval_usec_ > 0) {
+#endif
+ auto val = detail::select_read(svr_sock_, idle_interval_sec_,
+ idle_interval_usec_);
+ if (val == 0) { // Timeout
+ task_queue->on_idle();
+ continue;
+ }
+#ifndef _WIN32
+ }
+#endif
+ socket_t sock = accept(svr_sock_, nullptr, nullptr);
+
+ if (sock == INVALID_SOCKET) {
+ if (errno == EMFILE) {
+ // The per-process limit of open file descriptors has been reached.
+ // Try to accept new connections after a short sleep.
+ std::this_thread::sleep_for(std::chrono::milliseconds(1));
+ continue;
+ }
+ if (svr_sock_ != INVALID_SOCKET) {
+ detail::close_socket(svr_sock_);
+ ret = false;
+ } else {
+ ; // The server socket was closed by user.
+ }
+ break;
+ }
+
+#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, receiver,
+ nullptr, nullptr);
+ },
+ [&](MultipartContentHeader header, ContentReceiver receiver) {
+ return read_content_with_content_receiver(strm, req, res, nullptr,
+ header, receiver);
+ });
+
+ if (req.method == "POST") {
+ if (dispatch_request_for_content_reader(
+ req, res, reader, post_handlers_for_content_reader_)) {
+ return true;
+ }
+ } else if (req.method == "PUT") {
+ if (dispatch_request_for_content_reader(
+ req, res, reader, put_handlers_for_content_reader_)) {
+ return true;
+ }
+ } else if (req.method == "PATCH") {
+ if (dispatch_request_for_content_reader(
+ req, res, reader, patch_handlers_for_content_reader_)) {
+ return true;
+ }
+ } else if (req.method == "DELETE") {
+ if (dispatch_request_for_content_reader(
+ req, res, 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,
+ 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,
+ 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<void(Request &)> &setup_request) {
+ std::array<char, 2048> buf{};
+
+ detail::stream_line_reader line_reader(strm, buf.data(), buf.size());
+
+ // Connection has been closed on client
+ if (!line_reader.getline()) { return false; }
+
+ Request req;
+ Response res;
+
+ res.version = "HTTP/1.1";
+
+ // 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_, 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 Client::Client(const std::string &host)
+ : Client(host, 80, std::string(), std::string()) {}
+
+inline Client::Client(const std::string &host, int port)
+ : Client(host, port, std::string(), std::string()) {}
+
+inline Client::Client(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 Client::~Client() { stop(); }
+
+inline bool Client::is_valid() const { return true; }
+
+inline socket_t Client::create_client_socket() const {
+ if (!proxy_host_.empty()) {
+ return detail::create_client_socket(
+ proxy_host_.c_str(), proxy_port_, tcp_nodelay_, socket_options_,
+ connection_timeout_sec_, connection_timeout_usec_, interface_);
+ }
+ return detail::create_client_socket(host_.c_str(), port_, tcp_nodelay_,
+ socket_options_, connection_timeout_sec_,
+ connection_timeout_usec_, interface_);
+}
+
+inline bool Client::create_and_connect_socket(Socket &socket) {
+ auto sock = create_client_socket();
+ if (sock == INVALID_SOCKET) { return false; }
+ socket.sock = sock;
+ return true;
+}
+
+inline void Client::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 Client::read_response_line(Stream &strm, Response &res) {
+ std::array<char, 2048> 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)) {
+ res.version = std::string(m[1]);
+ res.status = std::stoi(std::string(m[2]));
+ }
+
+ return true;
+}
+
+inline bool Client::send(const Request &req, Response &res) {
+ std::lock_guard<std::recursive_mutex> request_mutex_guard(request_mutex_);
+
+ {
+ std::lock_guard<std::mutex> 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<SSLClient &>(*this);
+ if (!proxy_host_.empty()) {
+ 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) { stop(); }
+
+ return ret;
+}
+
+inline bool Client::handle_request(Stream &strm, const Request &req,
+ Response &res, bool close_connection) {
+ if (req.path.empty()) { return false; }
+
+ bool ret;
+
+ if (!is_ssl() && !proxy_host_.empty()) {
+ 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<std::string, std::string> auth;
+ if (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(make_digest_authentication_header(
+ req, auth, new_req.authorization_count_, 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 Client::redirect(const Request &req, Response &res) {
+ if (req.redirect_count == 0) { return false; }
+
+ auto location = res.get_header_value("location");
+ 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);
+ return detail::redirect(cli, req, res, next_path);
+#else
+ return false;
+#endif
+ } else {
+ Client cli(next_host.c_str(), next_port);
+ cli.copy_settings(*this);
+ return detail::redirect(cli, req, res, next_path);
+ }
+ }
+}
+
+inline bool Client::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 {
+ 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_username_.empty() && !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));
+ }
+
+ detail::write_headers(bstrm, req, headers);
+
+ // Flush buffer
+ auto &data = bstrm.get_buffer();
+ if (!detail::write_data(strm, data.data(), data.size())) { 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)) {
+ return false;
+ }
+ if (!ok) { return false; }
+ }
+ }
+ } else {
+ return detail::write_data(strm, req.body.data(), req.body.size());
+ }
+
+ return true;
+}
+
+inline std::shared_ptr<Response> Client::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 = headers;
+ req.path = path;
+
+ if (content_type) { req.headers.emplace("Content-Type", content_type); }
+
+#ifdef CPPHTTPLIB_ZLIB_SUPPORT
+ if (compress_) {
+ if (content_provider) {
+ size_t offset = 0;
+
+ DataSink data_sink;
+ data_sink.write = [&](const char *data, size_t data_len) {
+ req.body.append(data, data_len);
+ offset += data_len;
+ };
+ data_sink.is_writable = [&](void) { return true; };
+
+ while (offset < content_length) {
+ if (!content_provider(offset, content_length - offset, data_sink)) {
+ return nullptr;
+ }
+ }
+ } else {
+ req.body = body;
+ }
+
+ if (!detail::compress(req.body)) { return nullptr; }
+ req.headers.emplace("Content-Encoding", "gzip");
+ } else
+#endif
+ {
+ if (content_provider) {
+ req.content_length = content_length;
+ req.content_provider = content_provider;
+ } else {
+ req.body = body;
+ }
+ }
+
+ auto res = std::make_shared<Response>();
+
+ return send(req, *res) ? res : nullptr;
+}
+
+inline bool Client::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)) {
+ return false;
+ }
+
+ if (req.response_handler) {
+ if (!req.response_handler(res)) { return false; }
+ }
+
+ // Body
+ if (req.method != "HEAD" && req.method != "CONNECT") {
+ auto out =
+ req.content_receiver
+ ? static_cast<ContentReceiver>([&](const char *buf, size_t n) {
+ return req.content_receiver(buf, n);
+ })
+ : static_cast<ContentReceiver>([&](const char *buf, size_t n) {
+ if (res.body.size() + n > res.body.max_size()) { return false; }
+ res.body.append(buf, n);
+ return true;
+ });
+
+ int dummy_status;
+ if (!detail::read_content(strm, res, (std::numeric_limits<size_t>::max)(),
+ dummy_status, req.progress, out, decompress_)) {
+ return false;
+ }
+ }
+
+ if (res.get_header_value("Connection") == "close" ||
+ res.version == "HTTP/1.0") {
+ stop();
+ }
+
+ // Log
+ if (logger_) { logger_(req, res); }
+
+ return true;
+}
+
+inline bool Client::process_socket(Socket &socket,
+ std::function<bool(Stream &strm)> callback) {
+ return detail::process_client_socket(socket.sock, read_timeout_sec_,
+ read_timeout_usec_, write_timeout_sec_,
+ write_timeout_usec_, callback);
+}
+
+inline bool Client::is_ssl() const { return false; }
+
+inline std::shared_ptr<Response> Client::Get(const char *path) {
+ return Get(path, Headers(), Progress());
+}
+
+inline std::shared_ptr<Response> Client::Get(const char *path,
+ Progress progress) {
+ return Get(path, Headers(), std::move(progress));
+}
+
+inline std::shared_ptr<Response> Client::Get(const char *path,
+ const Headers &headers) {
+ return Get(path, headers, Progress());
+}
+
+inline std::shared_ptr<Response>
+Client::Get(const char *path, const Headers &headers, Progress progress) {
+ Request req;
+ req.method = "GET";
+ req.path = path;
+ req.headers = headers;
+ req.progress = std::move(progress);
+
+ auto res = std::make_shared<Response>();
+ return send(req, *res) ? res : nullptr;
+}
+
+inline std::shared_ptr<Response> Client::Get(const char *path,
+ ContentReceiver content_receiver) {
+ return Get(path, Headers(), nullptr, std::move(content_receiver), Progress());
+}
+
+inline std::shared_ptr<Response> Client::Get(const char *path,
+ ContentReceiver content_receiver,
+ Progress progress) {
+ return Get(path, Headers(), nullptr, std::move(content_receiver),
+ std::move(progress));
+}
+
+inline std::shared_ptr<Response> Client::Get(const char *path,
+ const Headers &headers,
+ ContentReceiver content_receiver) {
+ return Get(path, headers, nullptr, std::move(content_receiver), Progress());
+}
+
+inline std::shared_ptr<Response> Client::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 std::shared_ptr<Response> Client::Get(const char *path,
+ const Headers &headers,
+ ResponseHandler response_handler,
+ ContentReceiver content_receiver) {
+ return Get(path, headers, std::move(response_handler), content_receiver,
+ Progress());
+}
+
+inline std::shared_ptr<Response> Client::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 = headers;
+ req.response_handler = std::move(response_handler);
+ req.content_receiver = std::move(content_receiver);
+ req.progress = std::move(progress);
+
+ auto res = std::make_shared<Response>();
+ return send(req, *res) ? res : nullptr;
+}
+
+inline std::shared_ptr<Response> Client::Head(const char *path) {
+ return Head(path, Headers());
+}
+
+inline std::shared_ptr<Response> Client::Head(const char *path,
+ const Headers &headers) {
+ Request req;
+ req.method = "HEAD";
+ req.headers = headers;
+ req.path = path;
+
+ auto res = std::make_shared<Response>();
+
+ return send(req, *res) ? res : nullptr;
+}
+
+inline std::shared_ptr<Response> Client::Post(const char *path) {
+ return Post(path, std::string(), nullptr);
+}
+
+inline std::shared_ptr<Response> Client::Post(const char *path,
+ const std::string &body,
+ const char *content_type) {
+ return Post(path, Headers(), body, content_type);
+}
+
+inline std::shared_ptr<Response> Client::Post(const char *path,
+ const Headers &headers,
+ const std::string &body,
+ const char *content_type) {
+ return send_with_content_provider("POST", path, headers, body, 0, nullptr,
+ content_type);
+}
+
+inline std::shared_ptr<Response> Client::Post(const char *path,
+ const Params ¶ms) {
+ return Post(path, Headers(), params);
+}
+
+inline std::shared_ptr<Response> Client::Post(const char *path,
+ size_t content_length,
+ ContentProvider content_provider,
+ const char *content_type) {
+ return Post(path, Headers(), content_length, content_provider, content_type);
+}
+
+inline std::shared_ptr<Response>
+Client::Post(const char *path, const Headers &headers, size_t content_length,
+ ContentProvider content_provider, const char *content_type) {
+ return send_with_content_provider("POST", path, headers, std::string(),
+ content_length, content_provider,
+ content_type);
+}
+
+inline std::shared_ptr<Response>
+Client::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 std::shared_ptr<Response>
+Client::Post(const char *path, const MultipartFormDataItems &items) {
+ return Post(path, Headers(), items);
+}
+
+inline std::shared_ptr<Response>
+Client::Post(const char *path, const Headers &headers,
+ const MultipartFormDataItems &items) {
+ auto boundary = detail::make_multipart_data_boundary();
+
+ 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 std::shared_ptr<Response> Client::Put(const char *path) {
+ return Put(path, std::string(), nullptr);
+}
+
+inline std::shared_ptr<Response> Client::Put(const char *path,
+ const std::string &body,
+ const char *content_type) {
+ return Put(path, Headers(), body, content_type);
+}
+
+inline std::shared_ptr<Response> Client::Put(const char *path,
+ const Headers &headers,
+ const std::string &body,
+ const char *content_type) {
+ return send_with_content_provider("PUT", path, headers, body, 0, nullptr,
+ content_type);
+}
+
+inline std::shared_ptr<Response> Client::Put(const char *path,
+ size_t content_length,
+ ContentProvider content_provider,
+ const char *content_type) {
+ return Put(path, Headers(), content_length, content_provider, content_type);
+}
+
+inline std::shared_ptr<Response>
+Client::Put(const char *path, const Headers &headers, size_t content_length,
+ ContentProvider content_provider, const char *content_type) {
+ return send_with_content_provider("PUT", path, headers, std::string(),
+ content_length, content_provider,
+ content_type);
+}
+
+inline std::shared_ptr<Response> Client::Put(const char *path,
+ const Params ¶ms) {
+ return Put(path, Headers(), params);
+}
+
+inline std::shared_ptr<Response>
+Client::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 std::shared_ptr<Response> Client::Patch(const char *path,
+ const std::string &body,
+ const char *content_type) {
+ return Patch(path, Headers(), body, content_type);
+}
+
+inline std::shared_ptr<Response> Client::Patch(const char *path,
+ const Headers &headers,
+ const std::string &body,
+ const char *content_type) {
+ return send_with_content_provider("PATCH", path, headers, body, 0, nullptr,
+ content_type);
+}
+
+inline std::shared_ptr<Response> Client::Patch(const char *path,
+ size_t content_length,
+ ContentProvider content_provider,
+ const char *content_type) {
+ return Patch(path, Headers(), content_length, content_provider, content_type);
+}
+
+inline std::shared_ptr<Response>
+Client::Patch(const char *path, const Headers &headers, size_t content_length,
+ ContentProvider content_provider, const char *content_type) {
+ return send_with_content_provider("PATCH", path, headers, std::string(),
+ content_length, content_provider,
+ content_type);
+}
+
+inline std::shared_ptr<Response> Client::Delete(const char *path) {
+ return Delete(path, Headers(), std::string(), nullptr);
+}
+
+inline std::shared_ptr<Response> Client::Delete(const char *path,
+ const std::string &body,
+ const char *content_type) {
+ return Delete(path, Headers(), body, content_type);
+}
+
+inline std::shared_ptr<Response> Client::Delete(const char *path,
+ const Headers &headers) {
+ return Delete(path, headers, std::string(), nullptr);
+}
+
+inline std::shared_ptr<Response> Client::Delete(const char *path,
+ const Headers &headers,
+ const std::string &body,
+ const char *content_type) {
+ Request req;
+ req.method = "DELETE";
+ req.headers = headers;
+ req.path = path;
+
+ if (content_type) { req.headers.emplace("Content-Type", content_type); }
+ req.body = body;
+
+ auto res = std::make_shared<Response>();
+
+ return send(req, *res) ? res : nullptr;
+}
+
+inline std::shared_ptr<Response> Client::Options(const char *path) {
+ return Options(path, Headers());
+}
+
+inline std::shared_ptr<Response> Client::Options(const char *path,
+ const Headers &headers) {
+ Request req;
+ req.method = "OPTIONS";
+ req.path = path;
+ req.headers = headers;
+
+ auto res = std::make_shared<Response>();
+
+ return send(req, *res) ? res : nullptr;
+}
+
+inline size_t Client::is_socket_open() const {
+ std::lock_guard<std::mutex> guard(socket_mutex_);
+ return socket_.is_open();
+}
+
+inline void Client::stop() {
+ std::lock_guard<std::mutex> 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 Client::set_timeout_sec(time_t timeout_sec) {
+ set_connection_timeout(timeout_sec, 0);
+}
+
+inline void Client::set_connection_timeout(time_t sec, time_t usec) {
+ connection_timeout_sec_ = sec;
+ connection_timeout_usec_ = usec;
+}
+
+inline void Client::set_read_timeout(time_t sec, time_t usec) {
+ read_timeout_sec_ = sec;
+ read_timeout_usec_ = usec;
+}
+
+inline void Client::set_write_timeout(time_t sec, time_t usec) {
+ write_timeout_sec_ = sec;
+ write_timeout_usec_ = usec;
+}
+
+inline void Client::set_basic_auth(const char *username, const char *password) {
+ basic_auth_username_ = username;
+ basic_auth_password_ = password;
+}
+
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+inline void Client::set_digest_auth(const char *username,
+ const char *password) {
+ digest_auth_username_ = username;
+ digest_auth_password_ = password;
+}
+#endif
+
+inline void Client::set_keep_alive(bool on) { keep_alive_ = on; }
+
+inline void Client::set_follow_location(bool on) { follow_location_ = on; }
+
+inline void Client::set_tcp_nodelay(bool on) { tcp_nodelay_ = on; }
+
+inline void Client::set_socket_options(SocketOptions socket_options) {
+ socket_options_ = socket_options;
+}
+
+inline void Client::set_compress(bool on) { compress_ = on; }
+
+inline void Client::set_decompress(bool on) { decompress_ = on; }
+
+inline void Client::set_interface(const char *intf) { interface_ = intf; }
+
+inline void Client::set_proxy(const char *host, int port) {
+ proxy_host_ = host;
+ proxy_port_ = port;
+}
+
+inline void Client::set_proxy_basic_auth(const char *username,
+ const char *password) {
+ proxy_basic_auth_username_ = username;
+ proxy_basic_auth_password_ = password;
+}
+
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+inline void Client::set_proxy_digest_auth(const char *username,
+ const char *password) {
+ proxy_digest_auth_username_ = username;
+ proxy_digest_auth_password_ = password;
+}
+#endif
+
+inline void Client::set_logger(Logger logger) { logger_ = std::move(logger); }
+
+/*
+ * SSL Implementation
+ */
+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+namespace detail {
+
+template <typename U, typename V>
+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<std::mutex> guard(ctx_mutex);
+ ssl = SSL_new(ctx);
+ }
+
+ if (ssl) {
+ auto bio = BIO_new_socket(static_cast<int>(sock), BIO_NOCLOSE);
+ SSL_set_bio(ssl, bio, bio);
+
+ if (!setup(ssl) || SSL_connect_or_accept(ssl) != 1) {
+ SSL_shutdown(ssl);
+ {
+ std::lock_guard<std::mutex> guard(ctx_mutex);
+ SSL_free(ssl);
+ }
+ 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<std::mutex> guard(ctx_mutex);
+ SSL_free(ssl);
+}
+
+template <typename T>
+inline bool
+process_server_socket_ssl(SSL *ssl, socket_t sock, size_t keep_alive_max_count,
+ 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,
+ [&](bool close_connection, bool connection_closed) {
+ SSLSocketStream strm(sock, ssl, read_timeout_sec, read_timeout_usec,
+ write_timeout_sec, write_timeout_usec);
+ return callback(strm, close_connection, connection_closed);
+ });
+}
+
+template <typename T>
+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<std::vector<std::mutex>> openSSL_locks_;
+
+class SSLThreadLocks {
+public:
+ SSLThreadLocks() {
+ openSSL_locks_ =
+ std::make_shared<std::vector<std::mutex>>(CRYPTO_num_locks());
+ CRYPTO_set_locking_callback(locking_callback);
+ }
+
+ ~SSLThreadLocks() { CRYPTO_set_locking_callback(nullptr); }
+
+private:
+ static void locking_callback(int mode, int type, const char * /*file*/,
+ int /*line*/) {
+ auto &lk = (*openSSL_locks_)[static_cast<size_t>(type)];
+ if (mode & CRYPTO_LOCK) {
+ lk.lock();
+ } else {
+ lk.unlock();
+ }
+ }
+};
+
+#endif
+
+class SSLInit {
+public:
+ SSLInit() {
+#if OPENSSL_VERSION_NUMBER < 0x1010001fL
+ SSL_load_error_strings();
+ SSL_library_init();
+#else
+ OPENSSL_init_ssl(
+ OPENSSL_INIT_LOAD_SSL_STRINGS | OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL);
+#endif
+ }
+
+ ~SSLInit() {
+#if OPENSSL_VERSION_NUMBER < 0x1010001fL
+ ERR_free_strings();
+#endif
+ }
+
+private:
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
+ SSLThreadLocks thread_init_;
+#endif
+};
+
+// SSL socket stream implementation
+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<long>(read_timeout_sec);
+ tv.tv_usec = static_cast<decltype(tv.tv_usec)>(read_timeout_usec);
+
+ setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, reinterpret_cast<char *>(&tv),
+ sizeof(tv));
+ }
+ {
+ timeval tv;
+ tv.tv_sec = static_cast<long>(write_timeout_sec);
+ tv.tv_usec = static_cast<decltype(tv.tv_usec)>(write_timeout_usec);
+
+ setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO, reinterpret_cast<char *>(&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<int>(size));
+ }
+ return -1;
+}
+
+inline ssize_t SSLSocketStream::write(const char *ptr, size_t size) {
+ if (is_writable()) { return SSL_write(ssl_, ptr, static_cast<int>(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_, 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)
+ : Client(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)
+ : Client(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) { ca_cert_store_ = ca_cert_store; }
+}
+
+inline void SSLClient::enable_server_certificate_verification(bool enabled) {
+ server_certificate_verification_ = enabled;
+}
+
+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() && Client::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<std::string, std::string> auth;
+ if (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(make_digest_authentication_header(
+ req3, auth, 1, 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<std::mutex> guard(ctx_mutex_);
+ if (!ca_cert_file_path_.empty()) {
+ if (!SSL_CTX_load_verify_locations(ctx_, ca_cert_file_path_.c_str(),
+ nullptr)) {
+ ret = false;
+ }
+ } else if (!ca_cert_dir_path_.empty()) {
+ if (!SSL_CTX_load_verify_locations(ctx_, nullptr,
+ ca_cert_dir_path_.c_str())) {
+ ret = false;
+ }
+ } else if (ca_cert_store_ != nullptr) {
+ if (SSL_CTX_get_cert_store(ctx_) != ca_cert_store_) {
+ SSL_CTX_set_cert_store(ctx_, ca_cert_store_);
+ }
+ } 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()) { return false; }
+ SSL_set_verify(ssl, SSL_VERIFY_NONE, nullptr);
+ }
+
+ if (SSL_connect(ssl) != 1) { return false; }
+
+ if (server_certificate_verification_) {
+ verify_result_ = SSL_get_verify_result(ssl);
+
+ if (verify_result_ != X509_V_OK) { return false; }
+
+ auto server_cert = SSL_get_peer_certificate(ssl);
+
+ if (server_cert == nullptr) { return false; }
+
+ if (!verify_host(server_cert)) {
+ X509_free(server_cert);
+ 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<bool(Stream &strm)> callback) {
+ assert(socket.ssl);
+ return detail::process_client_socket_ssl(
+ socket.ssl, socket.sock, read_timeout_sec_, read_timeout_usec_,
+ write_timeout_sec_, write_timeout_usec_, 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<const struct stack_st_GENERAL_NAME *>(
+ X509_get_ext_d2i(server_cert, NID_subject_alt_name, nullptr, nullptr));
+
+ if (alt_names) {
+ auto dsn_matched = false;
+ auto ip_mached = false;
+
+ auto count = sk_GENERAL_NAME_num(alt_names);
+
+ for (decltype(count) i = 0; i < count && !dsn_matched; i++) {
+ auto val = sk_GENERAL_NAME_value(alt_names, i);
+ if (val->type == type) {
+ auto name = (const char *)ASN1_STRING_get0_data(val->d.ia5);
+ auto name_len = (size_t)ASN1_STRING_length(val->d.ia5);
+
+ 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<size_t>(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<std::string> pattern_components;
+ detail::split(&pattern[0], &pattern[pattern_len], '.',
+ [&](const char *b, const char *e) {
+ pattern_components.emplace_back(std::string(b, e));
+ });
+
+ if (host_components_.size() != pattern_components.size()) { return false; }
+
+ auto itr = pattern_components.begin();
+ for (const auto &h : host_components_) {
+ auto &p = *itr;
+ if (p != h && p != "*") {
+ auto partial_match = (p.size() > 0 && p[p.size() - 1] == '*' &&
+ !p.compare(0, p.size() - 1, h));
+ if (!partial_match) { return false; }
+ }
+ ++itr;
+ }
+
+ return true;
+}
+#endif
+
+// ----------------------------------------------------------------------------
+
+} // namespace httplib
+
+#endif // CPPHTTPLIB_HTTPLIB_H
+
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