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2042 lines
49 KiB
C++
2042 lines
49 KiB
C++
//
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// httplib.h
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//
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// Copyright (c) 2017 Yuji Hirose. All rights reserved.
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// MIT License
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//
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#ifndef _CPPHTTPLIB_HTTPLIB_H_
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#define _CPPHTTPLIB_HTTPLIB_H_
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#ifdef _WIN32
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#ifndef _CRT_SECURE_NO_WARNINGS
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#define _CRT_SECURE_NO_WARNINGS
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#endif
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#ifndef _CRT_NONSTDC_NO_DEPRECATE
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#define _CRT_NONSTDC_NO_DEPRECATE
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#endif
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#if defined(_MSC_VER) && _MSC_VER < 1900
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#define snprintf _snprintf_s
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#endif
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#ifndef S_ISREG
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#define S_ISREG(m) (((m)&S_IFREG)==S_IFREG)
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#endif
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#ifndef S_ISDIR
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#define S_ISDIR(m) (((m)&S_IFDIR)==S_IFDIR)
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#endif
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#include <io.h>
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#include <winsock2.h>
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#include <ws2tcpip.h>
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#undef min
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#undef max
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typedef SOCKET socket_t;
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#else
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#include <pthread.h>
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#include <unistd.h>
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#include <netdb.h>
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#include <cstring>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <signal.h>
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#include <sys/socket.h>
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typedef int socket_t;
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#endif
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#include <fstream>
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#include <functional>
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#include <map>
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#include <memory>
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#include <regex>
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#include <string>
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#include <thread>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <assert.h>
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#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
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#include <openssl/ssl.h>
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#endif
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#ifdef CPPHTTPLIB_ZLIB_SUPPORT
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#include <zlib.h>
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#endif
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/*
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* Configuration
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*/
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#define CPPHTTPLIB_KEEPALIVE_MAX_COUNT 5
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#define CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND 5
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#define CPPHTTPLIB_KEEPALIVE_TIMEOUT_USECOND 0
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namespace httplib
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{
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namespace detail {
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struct ci {
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bool operator() (const std::string & s1, const std::string & s2) const {
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return std::lexicographical_compare(
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s1.begin(), s1.end(),
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s2.begin(), s2.end(),
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[](char c1, char c2) {
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return ::tolower(c1) < ::tolower(c2);
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});
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}
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};
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} // namespace detail
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enum class HttpVersion { v1_0 = 0, v1_1 };
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typedef std::multimap<std::string, std::string, detail::ci> Headers;
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template<typename uint64_t, typename... Args>
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std::pair<std::string, std::string> make_range_header(uint64_t value, Args... args);
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typedef std::multimap<std::string, std::string> Params;
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typedef std::smatch Match;
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typedef std::function<void (uint64_t current, uint64_t total)> Progress;
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struct MultipartFile {
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std::string filename;
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std::string content_type;
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size_t offset = 0;
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size_t length = 0;
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};
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typedef std::multimap<std::string, MultipartFile> MultipartFiles;
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struct Request {
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std::string version;
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std::string method;
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std::string path;
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Headers headers;
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std::string body;
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Params params;
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MultipartFiles files;
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Match matches;
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Progress progress;
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bool has_header(const char* key) const;
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std::string get_header_value(const char* key) const;
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void set_header(const char* key, const char* val);
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bool has_param(const char* key) const;
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std::string get_param_value(const char* key) const;
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bool has_file(const char* key) const;
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MultipartFile get_file_value(const char* key) const;
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};
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struct Response {
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std::string version;
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int status;
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Headers headers;
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std::string body;
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bool has_header(const char* key) const;
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std::string get_header_value(const char* key) const;
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void set_header(const char* key, const char* val);
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void set_redirect(const char* url);
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void set_content(const char* s, size_t n, const char* content_type);
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void set_content(const std::string& s, const char* content_type);
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Response() : status(-1) {}
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};
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class Stream {
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public:
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virtual ~Stream() {}
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virtual int read(char* ptr, size_t size) = 0;
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virtual int write(const char* ptr, size_t size1) = 0;
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virtual int write(const char* ptr) = 0;
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template <typename ...Args>
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void write_format(const char* fmt, const Args& ...args);
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};
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class SocketStream : public Stream {
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public:
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SocketStream(socket_t sock);
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virtual ~SocketStream();
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virtual int read(char* ptr, size_t size);
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virtual int write(const char* ptr, size_t size);
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virtual int write(const char* ptr);
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private:
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socket_t sock_;
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};
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class Server {
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public:
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typedef std::function<void (const Request&, Response&)> Handler;
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typedef std::function<void (const Request&, const Response&)> Logger;
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Server(HttpVersion http_version = HttpVersion::v1_0);
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virtual ~Server();
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virtual bool is_valid() const;
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Server& get(const char* pattern, Handler handler);
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Server& post(const char* pattern, Handler handler);
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bool set_base_dir(const char* path);
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void set_error_handler(Handler handler);
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void set_logger(Logger logger);
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bool listen(const char* host, int port, int socket_flags = 0);
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bool is_running() const;
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void stop();
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protected:
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bool process_request(Stream& strm, bool last_connection);
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const HttpVersion http_version_;
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private:
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typedef std::vector<std::pair<std::regex, Handler>> Handlers;
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socket_t create_server_socket(const char* host, int port, int socket_flags) const;
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bool routing(Request& req, Response& res);
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bool handle_file_request(Request& req, Response& res);
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bool dispatch_request(Request& req, Response& res, Handlers& handlers);
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bool parse_request_line(const char* s, Request& req);
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void write_response(Stream& strm, bool last_connection, const Request& req, Response& res);
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virtual bool read_and_close_socket(socket_t sock);
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socket_t svr_sock_;
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std::string base_dir_;
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Handlers get_handlers_;
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Handlers post_handlers_;
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Handler error_handler_;
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Logger logger_;
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};
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class Client {
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public:
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Client(
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const char* host,
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int port = 80,
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size_t timeout_sec = 300,
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HttpVersion http_version = HttpVersion::v1_0);
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virtual ~Client();
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virtual bool is_valid() const;
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std::shared_ptr<Response> get(const char* path, Progress progress = nullptr);
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std::shared_ptr<Response> get(const char* path, const Headers& headers, Progress progress = nullptr);
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std::shared_ptr<Response> head(const char* path);
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std::shared_ptr<Response> head(const char* path, const Headers& headers);
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std::shared_ptr<Response> post(const char* path, const std::string& body, const char* content_type);
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std::shared_ptr<Response> post(const char* path, const Headers& headers, const std::string& body, const char* content_type);
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std::shared_ptr<Response> post(const char* path, const Params& params);
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std::shared_ptr<Response> post(const char* path, const Headers& headers, const Params& params);
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bool send(Request& req, Response& res);
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protected:
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bool process_request(Stream& strm, Request& req, Response& res);
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const std::string host_;
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const int port_;
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size_t timeout_sec_;
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const HttpVersion http_version_;
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const std::string host_and_port_;
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private:
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socket_t create_client_socket() const;
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bool read_response_line(Stream& strm, Response& res);
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void write_request(Stream& strm, Request& req);
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virtual bool read_and_close_socket(socket_t sock, Request& req, Response& res);
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};
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#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
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class SSLSocketStream : public Stream {
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public:
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SSLSocketStream(SSL* ssl);
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virtual ~SSLSocketStream();
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virtual int read(char* ptr, size_t size);
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virtual int write(const char* ptr, size_t size);
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virtual int write(const char* ptr);
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private:
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SSL* ssl_;
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};
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class SSLServer : public Server {
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public:
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SSLServer(
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const char* cert_path, const char* private_key_path,
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HttpVersion http_version = HttpVersion::v1_0);
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virtual ~SSLServer();
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virtual bool is_valid() const;
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private:
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virtual bool read_and_close_socket(socket_t sock);
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SSL_CTX* ctx_;
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};
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class SSLClient : public Client {
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public:
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SSLClient(
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const char* host,
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int port = 80,
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size_t timeout_sec = 300,
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HttpVersion http_version = HttpVersion::v1_0);
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virtual ~SSLClient();
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virtual bool is_valid() const;
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private:
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virtual bool read_and_close_socket(socket_t sock, Request& req, Response& res);
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SSL_CTX* ctx_;
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};
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#endif
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/*
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* Implementation
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*/
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namespace detail {
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static std::vector<const char*> http_version_strings = { "HTTP/1.0", "HTTP/1.1" };
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template <class Fn>
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void split(const char* b, const char* e, char d, Fn fn)
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{
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int i = 0;
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int beg = 0;
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while (e ? (b + i != e) : (b[i] != '\0')) {
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if (b[i] == d) {
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fn(&b[beg], &b[i]);
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beg = i + 1;
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}
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i++;
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}
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if (i) {
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fn(&b[beg], &b[i]);
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}
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}
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// NOTE: until the read size reaches `fixed_buffer_size`, use `fixed_buffer`
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// to store data. The call can set memory on stack for performance.
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class stream_line_reader {
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public:
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stream_line_reader(Stream& strm, char* fixed_buffer, size_t fixed_buffer_size)
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: strm_(strm)
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, fixed_buffer_(fixed_buffer)
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, fixed_buffer_size_(fixed_buffer_size) {
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}
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const char* ptr() const {
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if (glowable_buffer_.empty()) {
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return fixed_buffer_;
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} else {
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return glowable_buffer_.data();
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}
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}
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bool getline() {
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fixed_buffer_used_size_ = 0;
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glowable_buffer_.clear();
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for (size_t i = 0; ; i++) {
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char byte;
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auto n = strm_.read(&byte, 1);
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if (n < 0) {
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return false;
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} else if (n == 0) {
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if (i == 0) {
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return false;
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} else {
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break;
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}
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}
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append(byte);
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if (byte == '\n') {
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break;
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}
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}
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return true;
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}
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private:
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void append(char c) {
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if (fixed_buffer_used_size_ < fixed_buffer_size_ - 1) {
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fixed_buffer_[fixed_buffer_used_size_++] = c;
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fixed_buffer_[fixed_buffer_used_size_] = '\0';
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} else {
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if (glowable_buffer_.empty()) {
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assert(fixed_buffer_[fixed_buffer_used_size_] == '\0');
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glowable_buffer_.assign(fixed_buffer_, fixed_buffer_used_size_);
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}
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glowable_buffer_ += c;
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}
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}
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Stream& strm_;
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char* fixed_buffer_;
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const size_t fixed_buffer_size_;
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size_t fixed_buffer_used_size_;
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std::string glowable_buffer_;
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};
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inline int close_socket(socket_t sock)
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{
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#ifdef _WIN32
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return closesocket(sock);
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#else
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return close(sock);
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#endif
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}
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inline int select_read(socket_t sock, size_t sec, size_t usec)
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{
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fd_set fds;
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FD_ZERO(&fds);
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FD_SET(sock, &fds);
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timeval tv;
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tv.tv_sec = sec;
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tv.tv_usec = usec;
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return select(sock + 1, &fds, NULL, NULL, &tv);
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}
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inline bool is_socket_writable(socket_t sock, size_t sec, size_t usec)
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{
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fd_set fdsw;
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FD_ZERO(&fdsw);
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FD_SET(sock, &fdsw);
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fd_set fdse;
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FD_ZERO(&fdse);
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FD_SET(sock, &fdse);
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timeval tv;
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tv.tv_sec = sec;
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tv.tv_usec = usec;
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if (select(sock + 1, NULL, &fdsw, &fdse, &tv) <= 0) {
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return false;
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}
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return FD_ISSET(sock, &fdsw) != 0;
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}
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template <typename T>
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inline bool read_and_close_socket(socket_t sock, bool keep_alive, T callback)
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{
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bool ret = false;
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if (keep_alive) {
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auto count = CPPHTTPLIB_KEEPALIVE_MAX_COUNT;
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while (count > 0 &&
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detail::select_read(sock,
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CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND,
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CPPHTTPLIB_KEEPALIVE_TIMEOUT_USECOND) > 0) {
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auto last_connection = count == 1;
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SocketStream strm(sock);
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ret = callback(strm, last_connection);
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if (!ret) {
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break;
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}
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count--;
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}
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} else {
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SocketStream strm(sock);
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ret = callback(strm, true);
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}
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close_socket(sock);
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return ret;
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}
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inline int shutdown_socket(socket_t sock)
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{
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#ifdef _WIN32
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return shutdown(sock, SD_BOTH);
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#else
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return shutdown(sock, SHUT_RDWR);
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#endif
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}
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template <typename Fn>
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socket_t create_socket(const char* host, int port, Fn fn, int socket_flags = 0)
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{
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#ifdef _WIN32
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#define SO_SYNCHRONOUS_NONALERT 0x20
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#define SO_OPENTYPE 0x7008
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int opt = SO_SYNCHRONOUS_NONALERT;
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setsockopt(INVALID_SOCKET, SOL_SOCKET, SO_OPENTYPE, (char*)&opt, sizeof(opt));
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#endif
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// Get address info
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struct addrinfo hints;
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struct addrinfo *result;
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memset(&hints, 0, sizeof(struct addrinfo));
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hints.ai_family = AF_UNSPEC;
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hints.ai_socktype = SOCK_STREAM;
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hints.ai_flags = socket_flags;
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hints.ai_protocol = 0;
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auto service = std::to_string(port);
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if (getaddrinfo(host, service.c_str(), &hints, &result)) {
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return -1;
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}
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for (auto rp = result; rp; rp = rp->ai_next) {
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// Create a socket
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auto sock = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol);
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if (sock == -1) {
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continue;
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}
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// Make 'reuse address' option available
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int yes = 1;
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setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (char*)&yes, sizeof(yes));
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// bind or connect
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if (fn(sock, *rp)) {
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freeaddrinfo(result);
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return sock;
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}
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close_socket(sock);
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}
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freeaddrinfo(result);
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return -1;
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}
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inline void set_nonblocking(socket_t sock, bool nonblocking)
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{
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#ifdef _WIN32
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auto flags = nonblocking ? 1UL : 0UL;
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ioctlsocket(sock, FIONBIO, &flags);
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#else
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auto flags = fcntl(sock, F_GETFL, 0);
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fcntl(sock, F_SETFL, nonblocking ? (flags | O_NONBLOCK) : (flags & (~O_NONBLOCK)));
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#endif
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}
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inline bool is_connection_error()
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{
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#ifdef _WIN32
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return WSAGetLastError() != WSAEWOULDBLOCK;
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#else
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return errno != EINPROGRESS;
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#endif
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}
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inline bool is_file(const std::string& path)
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{
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struct stat st;
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return stat(path.c_str(), &st) >= 0 && S_ISREG(st.st_mode);
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}
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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], size);
|
|
}
|
|
|
|
inline std::string file_extension(const std::string& path)
|
|
{
|
|
std::smatch m;
|
|
auto pat = std::regex("\\.([a-zA-Z0-9]+)$");
|
|
if (std::regex_search(path, m, pat)) {
|
|
return m[1].str();
|
|
}
|
|
return std::string();
|
|
}
|
|
|
|
inline const char* find_content_type(const std::string& path)
|
|
{
|
|
auto ext = file_extension(path);
|
|
if (ext == "txt") {
|
|
return "text/plain";
|
|
} else if (ext == "html") {
|
|
return "text/html";
|
|
} else if (ext == "css") {
|
|
return "text/css";
|
|
} else if (ext == "jpeg" || ext == "jpg") {
|
|
return "image/jpg";
|
|
} else if (ext == "png") {
|
|
return "image/png";
|
|
} else if (ext == "gif") {
|
|
return "image/gif";
|
|
} else if (ext == "svg") {
|
|
return "image/svg+xml";
|
|
} else if (ext == "ico") {
|
|
return "image/x-icon";
|
|
} else if (ext == "json") {
|
|
return "application/json";
|
|
} else if (ext == "pdf") {
|
|
return "application/pdf";
|
|
} else if (ext == "js") {
|
|
return "application/javascript";
|
|
} else if (ext == "xml") {
|
|
return "application/xml";
|
|
} else if (ext == "xhtml") {
|
|
return "application/xhtml+xml";
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
inline const char* status_message(int status)
|
|
{
|
|
switch (status) {
|
|
case 200: return "OK";
|
|
case 400: return "Bad Request";
|
|
case 404: return "Not Found";
|
|
default:
|
|
case 500: return "Internal Server Error";
|
|
}
|
|
}
|
|
|
|
inline const char* get_header_value(const Headers& headers, const char* key, const char* def)
|
|
{
|
|
auto it = headers.find(key);
|
|
if (it != headers.end()) {
|
|
return it->second.c_str();
|
|
}
|
|
return def;
|
|
}
|
|
|
|
inline int get_header_value_int(const Headers& headers, const char* key, int def)
|
|
{
|
|
auto it = headers.find(key);
|
|
if (it != headers.end()) {
|
|
return std::stoi(it->second);
|
|
}
|
|
return def;
|
|
}
|
|
|
|
inline bool read_headers(Stream& strm, Headers& headers)
|
|
{
|
|
static std::regex re(R"((.+?):\s*(.+?)\s*\r\n)");
|
|
|
|
const auto bufsiz = 2048;
|
|
char buf[bufsiz];
|
|
|
|
stream_line_reader reader(strm, buf, bufsiz);
|
|
|
|
for (;;) {
|
|
if (!reader.getline()) {
|
|
return false;
|
|
}
|
|
if (!strcmp(reader.ptr(), "\r\n")) {
|
|
break;
|
|
}
|
|
std::cmatch m;
|
|
if (std::regex_match(reader.ptr(), m, re)) {
|
|
auto key = std::string(m[1]);
|
|
auto val = std::string(m[2]);
|
|
headers.emplace(key, val);
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
template <typename T>
|
|
bool read_content_with_length(Stream& strm, T& x, size_t len, Progress progress)
|
|
{
|
|
x.body.assign(len, 0);
|
|
size_t r = 0;
|
|
while (r < len){
|
|
auto n = strm.read(&x.body[r], len - r);
|
|
if (n <= 0) {
|
|
return false;
|
|
}
|
|
|
|
r += n;
|
|
|
|
if (progress) {
|
|
progress(r, len);
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
template <typename T>
|
|
bool read_content_without_length(Stream& strm, T& x)
|
|
{
|
|
for (;;) {
|
|
char byte;
|
|
auto n = strm.read(&byte, 1);
|
|
if (n < 0) {
|
|
return false;
|
|
} else if (n == 0) {
|
|
return true;
|
|
}
|
|
x.body += byte;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
template <typename T>
|
|
bool read_content_chunked(Stream& strm, T& x)
|
|
{
|
|
const auto bufsiz = 16;
|
|
char buf[bufsiz];
|
|
|
|
stream_line_reader reader(strm, buf, bufsiz);
|
|
|
|
if (!reader.getline()) {
|
|
return false;
|
|
}
|
|
|
|
auto chunk_len = std::stoi(reader.ptr(), 0, 16);
|
|
|
|
while (chunk_len > 0){
|
|
std::string chunk(chunk_len, 0);
|
|
|
|
auto n = strm.read(&chunk[0], chunk_len);
|
|
if (n <= 0) {
|
|
return false;
|
|
}
|
|
|
|
if (!reader.getline()) {
|
|
return false;
|
|
}
|
|
|
|
if (strcmp(reader.ptr(), "\r\n")) {
|
|
break;
|
|
}
|
|
|
|
x.body += chunk;
|
|
|
|
if (!reader.getline()) {
|
|
return false;
|
|
}
|
|
|
|
chunk_len = std::stoi(reader.ptr(), 0, 16);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
template <typename T>
|
|
bool read_content(Stream& strm, T& x, Progress progress = Progress())
|
|
{
|
|
auto len = get_header_value_int(x.headers, "Content-Length", 0);
|
|
|
|
if (len) {
|
|
return read_content_with_length(strm, x, len, progress);
|
|
} else {
|
|
const auto& encoding = get_header_value(x.headers, "Transfer-Encoding", "");
|
|
|
|
if (!strcmp(encoding, "chunked")) {
|
|
return read_content_chunked(strm, x);
|
|
} else {
|
|
return read_content_without_length(strm, x);
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
template <typename T>
|
|
inline void write_headers(Stream& strm, const T& info)
|
|
{
|
|
for (const auto& x: info.headers) {
|
|
strm.write_format("%s: %s\r\n", x.first.c_str(), x.second.c_str());
|
|
}
|
|
strm.write("\r\n");
|
|
}
|
|
|
|
inline std::string encode_url(const std::string& s)
|
|
{
|
|
std::string result;
|
|
|
|
for (auto i = 0; s[i]; i++) {
|
|
switch (s[i]) {
|
|
case ' ': result += "+"; break;
|
|
case '\'': result += "%27"; break;
|
|
case ',': result += "%2C"; break;
|
|
case ':': result += "%3A"; break;
|
|
case ';': result += "%3B"; break;
|
|
default:
|
|
if (s[i] < 0) {
|
|
result += '%';
|
|
char hex[4];
|
|
size_t len = snprintf(hex, sizeof(hex) - 1, "%02X", (unsigned char)s[i]);
|
|
assert(len == 2);
|
|
result.append(hex, len);
|
|
} else {
|
|
result += s[i];
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
inline bool is_hex(char c, int& v)
|
|
{
|
|
if (0x20 <= c && isdigit(c)) {
|
|
v = c - '0';
|
|
return true;
|
|
} else if ('A' <= c && c <= 'F') {
|
|
v = c - 'A' + 10;
|
|
return true;
|
|
} else if ('a' <= c && c <= 'f') {
|
|
v = c - 'a' + 10;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
inline bool from_hex_to_i(const std::string& s, int i, int cnt, int& val)
|
|
{
|
|
val = 0;
|
|
for (; cnt; i++, cnt--) {
|
|
if (!s[i]) {
|
|
return false;
|
|
}
|
|
int v = 0;
|
|
if (is_hex(s[i], v)) {
|
|
val = val * 16 + v;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
inline size_t to_utf8(int code, char* buff)
|
|
{
|
|
if (code < 0x0080) {
|
|
buff[0] = (code & 0x7F);
|
|
return 1;
|
|
} else if (code < 0x0800) {
|
|
buff[0] = (0xC0 | ((code >> 6) & 0x1F));
|
|
buff[1] = (0x80 | (code & 0x3F));
|
|
return 2;
|
|
} else if (code < 0xD800) {
|
|
buff[0] = (0xE0 | ((code >> 12) & 0xF));
|
|
buff[1] = (0x80 | ((code >> 6) & 0x3F));
|
|
buff[2] = (0x80 | (code & 0x3F));
|
|
return 3;
|
|
} else if (code < 0xE000) { // D800 - DFFF is invalid...
|
|
return 0;
|
|
} else if (code < 0x10000) {
|
|
buff[0] = (0xE0 | ((code >> 12) & 0xF));
|
|
buff[1] = (0x80 | ((code >> 6) & 0x3F));
|
|
buff[2] = (0x80 | (code & 0x3F));
|
|
return 3;
|
|
} else if (code < 0x110000) {
|
|
buff[0] = (0xF0 | ((code >> 18) & 0x7));
|
|
buff[1] = (0x80 | ((code >> 12) & 0x3F));
|
|
buff[2] = (0x80 | ((code >> 6) & 0x3F));
|
|
buff[3] = (0x80 | (code & 0x3F));
|
|
return 4;
|
|
}
|
|
|
|
// NOTREACHED
|
|
return 0;
|
|
}
|
|
|
|
inline std::string decode_url(const std::string& s)
|
|
{
|
|
std::string result;
|
|
|
|
for (int i = 0; s[i]; i++) {
|
|
if (s[i] == '%') {
|
|
if (s[i + 1] && s[i + 1] == 'u') {
|
|
int val = 0;
|
|
if (from_hex_to_i(s, i + 2, 4, val)) {
|
|
// 4 digits Unicode codes
|
|
char buff[4];
|
|
size_t len = to_utf8(val, buff);
|
|
if (len > 0) {
|
|
result.append(buff, len);
|
|
}
|
|
i += 5; // 'u0000'
|
|
} else {
|
|
result += s[i];
|
|
}
|
|
} else {
|
|
int val = 0;
|
|
if (from_hex_to_i(s, i + 1, 2, val)) {
|
|
// 2 digits hex codes
|
|
result += val;
|
|
i += 2; // '00'
|
|
} else {
|
|
result += s[i];
|
|
}
|
|
}
|
|
} else if (s[i] == '+') {
|
|
result += ' ';
|
|
} else {
|
|
result += s[i];
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
inline void parse_query_text(const std::string& s, Params& params)
|
|
{
|
|
split(&s[0], &s[s.size()], '&', [&](const char* b, const char* e) {
|
|
std::string key;
|
|
std::string val;
|
|
split(b, e, '=', [&](const char* b, const char* e) {
|
|
if (key.empty()) {
|
|
key.assign(b, e);
|
|
} else {
|
|
val.assign(b, e);
|
|
}
|
|
});
|
|
params.emplace(key, decode_url(val));
|
|
});
|
|
}
|
|
|
|
inline bool parse_multipart_boundary(const std::string& content_type, std::string& boundary)
|
|
{
|
|
auto pos = content_type.find("boundary=");
|
|
if (pos == std::string::npos) {
|
|
return false;
|
|
}
|
|
|
|
boundary = content_type.substr(pos + 9);
|
|
return true;
|
|
}
|
|
|
|
inline bool parse_multipart_formdata(
|
|
const std::string& boundary, const std::string& body, MultipartFiles& files)
|
|
{
|
|
static std::string dash = "--";
|
|
static std::string crlf = "\r\n";
|
|
|
|
static std::regex re_content_type(
|
|
"Content-Type: (.*?)");
|
|
|
|
static std::regex re_content_disposition(
|
|
"Content-Disposition: form-data; name=\"(.*?)\"(?:; filename=\"(.*?)\")?");
|
|
|
|
auto dash_boundary = dash + boundary;
|
|
|
|
auto pos = body.find(dash_boundary);
|
|
if (pos != 0) {
|
|
return false;
|
|
}
|
|
|
|
pos += dash_boundary.size();
|
|
|
|
auto next_pos = body.find(crlf, pos);
|
|
if (next_pos == std::string::npos) {
|
|
return false;
|
|
}
|
|
|
|
pos = next_pos + crlf.size();
|
|
|
|
while (pos < body.size()) {
|
|
next_pos = body.find(crlf, pos);
|
|
if (next_pos == std::string::npos) {
|
|
return false;
|
|
}
|
|
|
|
std::string name;
|
|
MultipartFile file;
|
|
|
|
auto header = body.substr(pos, (next_pos - pos));
|
|
|
|
while (pos != next_pos) {
|
|
std::smatch m;
|
|
if (std::regex_match(header, m, re_content_type)) {
|
|
file.content_type = m[1];
|
|
} else if (std::regex_match(header, m, re_content_disposition)) {
|
|
name = m[1];
|
|
file.filename = m[2];
|
|
}
|
|
|
|
pos = next_pos + crlf.size();
|
|
|
|
next_pos = body.find(crlf, pos);
|
|
if (next_pos == std::string::npos) {
|
|
return false;
|
|
}
|
|
|
|
header = body.substr(pos, (next_pos - pos));
|
|
}
|
|
|
|
pos = next_pos + crlf.size();
|
|
|
|
next_pos = body.find(crlf + dash_boundary, pos);
|
|
|
|
if (next_pos == std::string::npos) {
|
|
return false;
|
|
}
|
|
|
|
file.offset = pos;
|
|
file.length = next_pos - pos;
|
|
|
|
pos = next_pos + crlf.size() + dash_boundary.size();
|
|
|
|
next_pos = body.find(crlf, pos);
|
|
if (next_pos == std::string::npos) {
|
|
return false;
|
|
}
|
|
|
|
files.emplace(name, file);
|
|
|
|
pos = next_pos + crlf.size();
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
inline std::string to_lower(const char* beg, const char* end)
|
|
{
|
|
std::string out;
|
|
auto it = beg;
|
|
while (it != end) {
|
|
out += ::tolower(*it);
|
|
it++;
|
|
}
|
|
return out;
|
|
}
|
|
|
|
inline void make_range_header_core(std::string&) {}
|
|
|
|
template<typename uint64_t>
|
|
inline void make_range_header_core(std::string& field, uint64_t value)
|
|
{
|
|
if (!field.empty()) {
|
|
field += ", ";
|
|
}
|
|
field += std::to_string(value) + "-";
|
|
}
|
|
|
|
template<typename uint64_t, typename... Args>
|
|
inline void make_range_header_core(std::string& field, uint64_t value1, uint64_t value2, Args... args)
|
|
{
|
|
if (!field.empty()) {
|
|
field += ", ";
|
|
}
|
|
field += std::to_string(value1) + "-" + std::to_string(value2);
|
|
make_range_header_core(field, args...);
|
|
}
|
|
|
|
#ifdef CPPHTTPLIB_ZLIB_SUPPORT
|
|
inline bool can_compress(const std::string& content_type) {
|
|
return !content_type.find("text/") ||
|
|
content_type == "image/svg+xml" ||
|
|
content_type == "application/javascript" ||
|
|
content_type == "application/json" ||
|
|
content_type == "application/xml" ||
|
|
content_type == "application/xhtml+xml";
|
|
}
|
|
|
|
inline void compress(const Request& req, Response& res)
|
|
{
|
|
// TODO: Server version is HTTP/1.1 and 'Accpet-Encoding' has gzip, not gzip;q=0
|
|
const auto& encodings = req.get_header_value("Accept-Encoding");
|
|
if (encodings.find("gzip") == std::string::npos) {
|
|
return;
|
|
}
|
|
|
|
if (!can_compress(res.get_header_value("Content-Type"))) {
|
|
return;
|
|
}
|
|
|
|
z_stream strm;
|
|
strm.zalloc = Z_NULL;
|
|
strm.zfree = Z_NULL;
|
|
strm.opaque = Z_NULL;
|
|
|
|
auto ret = deflateInit2(&strm, Z_DEFAULT_COMPRESSION, Z_DEFLATED, 31, 8, Z_DEFAULT_STRATEGY);
|
|
if (ret != Z_OK) {
|
|
return;
|
|
}
|
|
|
|
strm.avail_in = res.body.size();
|
|
strm.next_in = (Bytef *)res.body.data();
|
|
|
|
std::string compressed;
|
|
|
|
const auto bufsiz = 16384;
|
|
char buff[bufsiz];
|
|
do {
|
|
strm.avail_out = bufsiz;
|
|
strm.next_out = (Bytef *)buff;
|
|
deflate(&strm, Z_FINISH);
|
|
compressed.append(buff, bufsiz - strm.avail_out);
|
|
} while (strm.avail_out == 0);
|
|
|
|
res.set_header("Content-Encoding", "gzip");
|
|
res.body.swap(compressed);
|
|
|
|
deflateEnd(&strm);
|
|
}
|
|
#endif
|
|
|
|
#ifdef _WIN32
|
|
class WSInit {
|
|
public:
|
|
WSInit() {
|
|
WSADATA wsaData;
|
|
WSAStartup(0x0002, &wsaData);
|
|
}
|
|
|
|
~WSInit() {
|
|
WSACleanup();
|
|
}
|
|
};
|
|
|
|
static WSInit wsinit_;
|
|
#endif
|
|
|
|
} // namespace detail
|
|
|
|
// Header utilities
|
|
template<typename uint64_t, typename... Args>
|
|
inline std::pair<std::string, std::string> make_range_header(uint64_t value, Args... args)
|
|
{
|
|
std::string field;
|
|
detail::make_range_header_core(field, value, args...);
|
|
field.insert(0, "bytes=");
|
|
return std::make_pair("Range", field);
|
|
}
|
|
|
|
// Request implementation
|
|
inline bool Request::has_header(const char* key) const
|
|
{
|
|
return headers.find(key) != headers.end();
|
|
}
|
|
|
|
inline std::string Request::get_header_value(const char* key) const
|
|
{
|
|
return detail::get_header_value(headers, key, "");
|
|
}
|
|
|
|
inline void Request::set_header(const char* key, const char* val)
|
|
{
|
|
headers.emplace(key, val);
|
|
}
|
|
|
|
inline bool Request::has_param(const char* key) const
|
|
{
|
|
return params.find(key) != params.end();
|
|
}
|
|
|
|
inline std::string Request::get_param_value(const char* key) const
|
|
{
|
|
auto it = params.find(key);
|
|
if (it != params.end()) {
|
|
return it->second;
|
|
}
|
|
return std::string();
|
|
}
|
|
|
|
inline bool Request::has_file(const char* key) const
|
|
{
|
|
return files.find(key) != files.end();
|
|
}
|
|
|
|
inline MultipartFile Request::get_file_value(const char* key) const
|
|
{
|
|
auto it = files.find(key);
|
|
if (it != files.end()) {
|
|
return it->second;
|
|
}
|
|
return MultipartFile();
|
|
}
|
|
|
|
// Response implementation
|
|
inline bool Response::has_header(const char* key) const
|
|
{
|
|
return headers.find(key) != headers.end();
|
|
}
|
|
|
|
inline std::string Response::get_header_value(const char* key) const
|
|
{
|
|
return detail::get_header_value(headers, key, "");
|
|
}
|
|
|
|
inline void Response::set_header(const char* key, const char* val)
|
|
{
|
|
headers.emplace(key, val);
|
|
}
|
|
|
|
inline void Response::set_redirect(const char* url)
|
|
{
|
|
set_header("Location", url);
|
|
status = 302;
|
|
}
|
|
|
|
inline void Response::set_content(const char* s, size_t n, const char* content_type)
|
|
{
|
|
body.assign(s, n);
|
|
set_header("Content-Type", content_type);
|
|
}
|
|
|
|
inline void Response::set_content(const std::string& s, const char* content_type)
|
|
{
|
|
body = s;
|
|
set_header("Content-Type", content_type);
|
|
}
|
|
|
|
// Rstream implementation
|
|
template <typename ...Args>
|
|
inline void Stream::write_format(const char* fmt, const Args& ...args)
|
|
{
|
|
const auto bufsiz = 2048;
|
|
char buf[bufsiz];
|
|
|
|
#if defined(_MSC_VER) && _MSC_VER < 1900
|
|
auto n = _snprintf_s(buf, bufsiz, bufsiz - 1, fmt, args...);
|
|
#else
|
|
auto n = snprintf(buf, bufsiz - 1, fmt, args...);
|
|
#endif
|
|
if (n > 0) {
|
|
if (n >= bufsiz - 1) {
|
|
std::vector<char> glowable_buf(bufsiz);
|
|
|
|
while (n >= static_cast<int>(glowable_buf.size() - 1)) {
|
|
glowable_buf.resize(glowable_buf.size() * 2);
|
|
#if defined(_MSC_VER) && _MSC_VER < 1900
|
|
n = _snprintf_s(&glowable_buf[0], glowable_buf.size(), glowable_buf.size() - 1, fmt, args...);
|
|
#else
|
|
n = snprintf(&glowable_buf[0], glowable_buf.size() - 1, fmt, args...);
|
|
#endif
|
|
}
|
|
write(&glowable_buf[0], n);
|
|
} else {
|
|
write(buf, n);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Socket stream implementation
|
|
inline SocketStream::SocketStream(socket_t sock): sock_(sock)
|
|
{
|
|
}
|
|
|
|
inline SocketStream::~SocketStream()
|
|
{
|
|
}
|
|
|
|
inline int SocketStream::read(char* ptr, size_t size)
|
|
{
|
|
return recv(sock_, ptr, size, 0);
|
|
}
|
|
|
|
inline int SocketStream::write(const char* ptr, size_t size)
|
|
{
|
|
return send(sock_, ptr, size, 0);
|
|
}
|
|
|
|
inline int SocketStream::write(const char* ptr)
|
|
{
|
|
return write(ptr, strlen(ptr));
|
|
}
|
|
|
|
// HTTP server implementation
|
|
inline Server::Server(HttpVersion http_version)
|
|
: http_version_(http_version)
|
|
, svr_sock_(-1)
|
|
{
|
|
#ifndef _WIN32
|
|
signal(SIGPIPE, SIG_IGN);
|
|
#endif
|
|
}
|
|
|
|
inline Server::~Server()
|
|
{
|
|
}
|
|
|
|
inline Server& Server::get(const char* pattern, Handler handler)
|
|
{
|
|
get_handlers_.push_back(std::make_pair(std::regex(pattern), handler));
|
|
return *this;
|
|
}
|
|
|
|
inline Server& Server::post(const char* pattern, Handler handler)
|
|
{
|
|
post_handlers_.push_back(std::make_pair(std::regex(pattern), handler));
|
|
return *this;
|
|
}
|
|
|
|
inline bool Server::set_base_dir(const char* path)
|
|
{
|
|
if (detail::is_dir(path)) {
|
|
base_dir_ = path;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
inline void Server::set_error_handler(Handler handler)
|
|
{
|
|
error_handler_ = handler;
|
|
}
|
|
|
|
inline void Server::set_logger(Logger logger)
|
|
{
|
|
logger_ = logger;
|
|
}
|
|
|
|
inline bool Server::listen(const char* host, int port, int socket_flags)
|
|
{
|
|
if (!is_valid()) {
|
|
return false;
|
|
}
|
|
|
|
svr_sock_ = create_server_socket(host, port, socket_flags);
|
|
if (svr_sock_ == -1) {
|
|
return false;
|
|
}
|
|
|
|
auto ret = true;
|
|
|
|
for (;;) {
|
|
auto val = detail::select_read(svr_sock_, 0, 100000);
|
|
|
|
if (val == 0) { // Timeout
|
|
if (svr_sock_ == -1) {
|
|
// The server socket was closed by 'stop' method.
|
|
break;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
socket_t sock = accept(svr_sock_, NULL, NULL);
|
|
|
|
if (sock == -1) {
|
|
if (svr_sock_ != -1) {
|
|
detail::close_socket(svr_sock_);
|
|
ret = false;
|
|
} else {
|
|
; // The server socket was closed by user.
|
|
}
|
|
break;
|
|
}
|
|
|
|
// TODO: Use thread pool...
|
|
std::thread([=]() {
|
|
read_and_close_socket(sock);
|
|
}).detach();
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
inline bool Server::is_running() const
|
|
{
|
|
return svr_sock_ != -1;
|
|
}
|
|
|
|
inline void Server::stop()
|
|
{
|
|
detail::shutdown_socket(svr_sock_);
|
|
detail::close_socket(svr_sock_);
|
|
svr_sock_ = -1;
|
|
}
|
|
|
|
inline bool Server::parse_request_line(const char* s, Request& req)
|
|
{
|
|
static std::regex re("(GET|HEAD|POST) ([^?]+)(?:\\?(.+?))? (HTTP/1\\.[01])\r\n");
|
|
|
|
std::cmatch m;
|
|
if (std::regex_match(s, m, re)) {
|
|
req.version = std::string(m[4]);
|
|
req.method = std::string(m[1]);
|
|
req.path = detail::decode_url(m[2]);
|
|
|
|
// Parse query text
|
|
auto len = std::distance(m[3].first, m[3].second);
|
|
if (len > 0) {
|
|
detail::parse_query_text(m[3], req.params);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
inline void Server::write_response(Stream& strm, bool last_connection, const Request& req, Response& res)
|
|
{
|
|
assert(res.status != -1);
|
|
|
|
if (400 <= res.status && error_handler_) {
|
|
error_handler_(req, res);
|
|
}
|
|
|
|
// Response line
|
|
strm.write_format("%s %d %s\r\n",
|
|
detail::http_version_strings[static_cast<size_t>(http_version_)],
|
|
res.status,
|
|
detail::status_message(res.status));
|
|
|
|
// Headers
|
|
if (!res.has_header("Connection") && (last_connection || req.version == "HTTP/1.0")) {
|
|
res.set_header("Connection", "close");
|
|
}
|
|
|
|
if (!res.body.empty()) {
|
|
#ifdef CPPHTTPLIB_ZLIB_SUPPORT
|
|
detail::compress(req, res);
|
|
#endif
|
|
|
|
if (!res.has_header("Content-Type")) {
|
|
res.set_header("Content-Type", "text/plain");
|
|
}
|
|
|
|
auto length = std::to_string(res.body.size());
|
|
res.set_header("Content-Length", length.c_str());
|
|
}
|
|
|
|
detail::write_headers(strm, res);
|
|
|
|
// Body
|
|
if (!res.body.empty() && req.method != "HEAD") {
|
|
strm.write(res.body.c_str(), res.body.size());
|
|
}
|
|
|
|
// Log
|
|
if (logger_) {
|
|
logger_(req, res);
|
|
}
|
|
}
|
|
|
|
inline bool Server::handle_file_request(Request& req, Response& res)
|
|
{
|
|
if (!base_dir_.empty() && detail::is_valid_path(req.path)) {
|
|
std::string path = base_dir_ + req.path;
|
|
|
|
if (!path.empty() && path.back() == '/') {
|
|
path += "index.html";
|
|
}
|
|
|
|
if (detail::is_file(path)) {
|
|
detail::read_file(path, res.body);
|
|
auto type = detail::find_content_type(path);
|
|
if (type) {
|
|
res.set_header("Content-Type", type);
|
|
}
|
|
res.status = 200;
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
inline socket_t Server::create_server_socket(const char* host, int port, int socket_flags) const
|
|
{
|
|
return detail::create_socket(host, port,
|
|
[](socket_t sock, struct addrinfo& ai) -> bool {
|
|
if (::bind(sock, ai.ai_addr, ai.ai_addrlen)) {
|
|
return false;
|
|
}
|
|
if (::listen(sock, 5)) { // Listen through 5 channels
|
|
return false;
|
|
}
|
|
return true;
|
|
}, socket_flags);
|
|
}
|
|
|
|
inline bool Server::routing(Request& req, Response& res)
|
|
{
|
|
if (req.method == "GET" && handle_file_request(req, res)) {
|
|
return true;
|
|
}
|
|
|
|
if (req.method == "GET" || req.method == "HEAD") {
|
|
return dispatch_request(req, res, get_handlers_);
|
|
} else if (req.method == "POST") {
|
|
return dispatch_request(req, res, post_handlers_);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
inline bool Server::dispatch_request(Request& req, Response& res, Handlers& handlers)
|
|
{
|
|
for (const auto& x: handlers) {
|
|
const auto& pattern = x.first;
|
|
const auto& handler = x.second;
|
|
|
|
if (std::regex_match(req.path, req.matches, pattern)) {
|
|
handler(req, res);
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
inline bool Server::process_request(Stream& strm, bool last_connection)
|
|
{
|
|
const auto bufsiz = 2048;
|
|
char buf[bufsiz];
|
|
|
|
detail::stream_line_reader reader(strm, buf, bufsiz);
|
|
|
|
// Connection has been closed on client
|
|
if (!reader.getline()) {
|
|
return false;
|
|
}
|
|
|
|
Request req;
|
|
Response res;
|
|
|
|
res.version = detail::http_version_strings[static_cast<size_t>(http_version_)];
|
|
|
|
// Request line and headers
|
|
if (!parse_request_line(reader.ptr(), req) || !detail::read_headers(strm, req.headers)) {
|
|
res.status = 400;
|
|
write_response(strm, last_connection, req, res);
|
|
return true;
|
|
}
|
|
|
|
auto ret = true;
|
|
if (req.get_header_value("Connection") == "close") {
|
|
ret = false;
|
|
}
|
|
|
|
// Body
|
|
if (req.method == "POST") {
|
|
if (!detail::read_content(strm, req)) {
|
|
res.status = 400;
|
|
write_response(strm, last_connection, req, res);
|
|
return ret;
|
|
}
|
|
|
|
const auto& content_type = req.get_header_value("Content-Type");
|
|
|
|
if (!content_type.find("application/x-www-form-urlencoded")) {
|
|
detail::parse_query_text(req.body, req.params);
|
|
} else if(!content_type.find("multipart/form-data")) {
|
|
std::string boundary;
|
|
if (!detail::parse_multipart_boundary(content_type, boundary) ||
|
|
!detail::parse_multipart_formdata(boundary, req.body, req.files)) {
|
|
res.status = 400;
|
|
write_response(strm, last_connection, req, res);
|
|
return ret;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (routing(req, res)) {
|
|
if (res.status == -1) {
|
|
res.status = 200;
|
|
}
|
|
} else {
|
|
res.status = 404;
|
|
}
|
|
|
|
write_response(strm, last_connection, req, res);
|
|
return ret;
|
|
}
|
|
|
|
inline bool Server::is_valid() const
|
|
{
|
|
return true;
|
|
}
|
|
|
|
inline bool Server::read_and_close_socket(socket_t sock)
|
|
{
|
|
auto keep_alive = http_version_ == HttpVersion::v1_1;
|
|
|
|
return detail::read_and_close_socket(
|
|
sock,
|
|
keep_alive,
|
|
[this](Stream& strm, bool last_connection) {
|
|
return process_request(strm, last_connection);
|
|
});
|
|
}
|
|
|
|
// HTTP client implementation
|
|
inline Client::Client(
|
|
const char* host, int port, size_t timeout_sec, HttpVersion http_version)
|
|
: host_(host)
|
|
, port_(port)
|
|
, timeout_sec_(timeout_sec)
|
|
, http_version_(http_version)
|
|
, host_and_port_(host_ + ":" + std::to_string(port_))
|
|
{
|
|
}
|
|
|
|
inline Client::~Client()
|
|
{
|
|
}
|
|
|
|
inline bool Client::is_valid() const
|
|
{
|
|
return true;
|
|
}
|
|
|
|
inline socket_t Client::create_client_socket() const
|
|
{
|
|
return detail::create_socket(host_.c_str(), port_,
|
|
[=](socket_t sock, struct addrinfo& ai) -> bool {
|
|
detail::set_nonblocking(sock, true);
|
|
|
|
auto ret = connect(sock, ai.ai_addr, ai.ai_addrlen);
|
|
if (ret == -1 && detail::is_connection_error()) {
|
|
return false;
|
|
}
|
|
|
|
detail::set_nonblocking(sock, false);
|
|
|
|
return detail::is_socket_writable(sock, timeout_sec_, 0);
|
|
});
|
|
}
|
|
|
|
inline bool Client::read_response_line(Stream& strm, Response& res)
|
|
{
|
|
const auto bufsiz = 2048;
|
|
char buf[bufsiz];
|
|
|
|
detail::stream_line_reader reader(strm, buf, bufsiz);
|
|
|
|
if (!reader.getline()) {
|
|
return false;
|
|
}
|
|
|
|
const static std::regex re("HTTP/1\\.[01] (\\d+?) .+\r\n");
|
|
|
|
std::cmatch m;
|
|
if (std::regex_match(reader.ptr(), m, re)) {
|
|
res.status = std::stoi(std::string(m[1]));
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
inline bool Client::send(Request& req, Response& res)
|
|
{
|
|
if (req.path.empty()) {
|
|
return false;
|
|
}
|
|
|
|
auto sock = create_client_socket();
|
|
if (sock == -1) {
|
|
return false;
|
|
}
|
|
|
|
return read_and_close_socket(sock, req, res);
|
|
}
|
|
|
|
inline void Client::write_request(Stream& strm, Request& req)
|
|
{
|
|
auto path = detail::encode_url(req.path);
|
|
|
|
// Request line
|
|
strm.write_format("%s %s %s\r\n",
|
|
req.method.c_str(),
|
|
path.c_str(),
|
|
detail::http_version_strings[static_cast<size_t>(http_version_)]);
|
|
|
|
// Headers
|
|
req.set_header("Host", host_and_port_.c_str());
|
|
|
|
if (!req.has_header("Accept")) {
|
|
req.set_header("Accept", "*/*");
|
|
}
|
|
|
|
if (!req.has_header("User-Agent")) {
|
|
req.set_header("User-Agent", "cpp-httplib/0.2");
|
|
}
|
|
|
|
// TODO: if (!req.has_header("Connection") &&
|
|
// (last_connection || http_version_ == detail::HttpVersion::v1_0)) {
|
|
if (!req.has_header("Connection")) {
|
|
req.set_header("Connection", "close");
|
|
}
|
|
|
|
if (!req.body.empty()) {
|
|
if (!req.has_header("Content-Type")) {
|
|
req.set_header("Content-Type", "text/plain");
|
|
}
|
|
|
|
auto length = std::to_string(req.body.size());
|
|
req.set_header("Content-Length", length.c_str());
|
|
}
|
|
|
|
detail::write_headers(strm, req);
|
|
|
|
// Body
|
|
if (!req.body.empty()) {
|
|
if (req.get_header_value("Content-Type") == "application/x-www-form-urlencoded") {
|
|
auto str = detail::encode_url(req.body);
|
|
strm.write(str.c_str(), str.size());
|
|
} else {
|
|
strm.write(req.body.c_str(), req.body.size());
|
|
}
|
|
}
|
|
}
|
|
|
|
inline bool Client::process_request(Stream& strm, Request& req, Response& res)
|
|
{
|
|
// Send request
|
|
write_request(strm, req);
|
|
|
|
// Receive response and headers
|
|
if (!read_response_line(strm, res) || !detail::read_headers(strm, res.headers)) {
|
|
return false;
|
|
}
|
|
|
|
// TODO: Check if 'Connection' header is 'close' or HTTP version is 1.0, then close socket...
|
|
|
|
// Body
|
|
if (req.method != "HEAD") {
|
|
if (!detail::read_content(strm, res, req.progress)) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
inline bool Client::read_and_close_socket(socket_t sock, Request& req, Response& res)
|
|
{
|
|
return detail::read_and_close_socket(sock, false, [&](Stream& strm, bool /*last_connection*/) {
|
|
return process_request(strm, req, res);
|
|
});
|
|
}
|
|
|
|
inline std::shared_ptr<Response> Client::get(const char* path, Progress progress)
|
|
{
|
|
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 = 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, 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)
|
|
{
|
|
Request req;
|
|
req.method = "POST";
|
|
req.headers = headers;
|
|
req.path = path;
|
|
|
|
req.headers.emplace("Content-Type", content_type);
|
|
req.body = body;
|
|
|
|
auto res = std::make_shared<Response>();
|
|
|
|
return send(req, *res) ? res : nullptr;
|
|
}
|
|
|
|
inline std::shared_ptr<Response> Client::post(const char* path, const Params& params)
|
|
{
|
|
return post(path, Headers(), params);
|
|
}
|
|
|
|
inline std::shared_ptr<Response> Client::post(const char* path, const Headers& headers, const Params& params)
|
|
{
|
|
std::string query;
|
|
for (auto it = params.begin(); it != params.end(); ++it) {
|
|
if (it != params.begin()) {
|
|
query += "&";
|
|
}
|
|
query += it->first;
|
|
query += "=";
|
|
query += it->second;
|
|
}
|
|
|
|
return post(path, headers, query, "application/x-www-form-urlencoded");
|
|
}
|
|
|
|
/*
|
|
* SSL Implementation
|
|
*/
|
|
#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
|
|
namespace detail {
|
|
|
|
template <typename U, typename V, typename T>
|
|
inline bool read_and_close_socket_ssl(
|
|
socket_t sock, bool keep_alive,
|
|
SSL_CTX* ctx, U SSL_connect_or_accept, V setup,
|
|
T callback)
|
|
{
|
|
auto ssl = SSL_new(ctx);
|
|
if (!ssl) {
|
|
return false;
|
|
}
|
|
|
|
auto bio = BIO_new_socket(sock, BIO_NOCLOSE);
|
|
SSL_set_bio(ssl, bio, bio);
|
|
|
|
setup(ssl);
|
|
|
|
SSL_connect_or_accept(ssl);
|
|
|
|
bool ret = false;
|
|
|
|
if (keep_alive) {
|
|
auto count = CPPHTTPLIB_KEEPALIVE_MAX_COUNT;
|
|
while (count > 0 &&
|
|
detail::select_read(sock,
|
|
CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND,
|
|
CPPHTTPLIB_KEEPALIVE_TIMEOUT_USECOND) > 0) {
|
|
auto last_connection = count == 1;
|
|
SSLSocketStream strm(ssl);
|
|
ret = callback(strm, last_connection);
|
|
if (!ret) {
|
|
break;
|
|
}
|
|
count--;
|
|
}
|
|
} else {
|
|
SSLSocketStream strm(ssl);
|
|
ret = callback(strm, true);
|
|
}
|
|
|
|
SSL_shutdown(ssl);
|
|
SSL_free(ssl);
|
|
close_socket(sock);
|
|
return ret;
|
|
}
|
|
|
|
class SSLInit {
|
|
public:
|
|
SSLInit() {
|
|
SSL_load_error_strings();
|
|
SSL_library_init();
|
|
}
|
|
};
|
|
|
|
static SSLInit sslinit_;
|
|
|
|
} // namespace detail
|
|
|
|
// SSL socket stream implementation
|
|
inline SSLSocketStream::SSLSocketStream(SSL* ssl): ssl_(ssl)
|
|
{
|
|
}
|
|
|
|
inline SSLSocketStream::~SSLSocketStream()
|
|
{
|
|
}
|
|
|
|
inline int SSLSocketStream::read(char* ptr, size_t size)
|
|
{
|
|
return SSL_read(ssl_, ptr, size);
|
|
}
|
|
|
|
inline int SSLSocketStream::write(const char* ptr, size_t size)
|
|
{
|
|
return SSL_write(ssl_, ptr, size);
|
|
}
|
|
|
|
inline int SSLSocketStream::write(const char* ptr)
|
|
{
|
|
return write(ptr, strlen(ptr));
|
|
}
|
|
|
|
// SSL HTTP server implementation
|
|
inline SSLServer::SSLServer(const char* cert_path, const char* private_key_path, HttpVersion http_version)
|
|
: Server(http_version)
|
|
{
|
|
ctx_ = SSL_CTX_new(SSLv23_server_method());
|
|
|
|
if (ctx_) {
|
|
SSL_CTX_set_options(ctx_,
|
|
SSL_OP_ALL | SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3 |
|
|
SSL_OP_NO_COMPRESSION |
|
|
SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION);
|
|
|
|
// auto ecdh = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1);
|
|
// SSL_CTX_set_tmp_ecdh(ctx_, ecdh);
|
|
// EC_KEY_free(ecdh);
|
|
|
|
if (SSL_CTX_use_certificate_file(ctx_, cert_path, SSL_FILETYPE_PEM) != 1 ||
|
|
SSL_CTX_use_PrivateKey_file(ctx_, private_key_path, SSL_FILETYPE_PEM) != 1) {
|
|
SSL_CTX_free(ctx_);
|
|
ctx_ = nullptr;
|
|
}
|
|
}
|
|
}
|
|
|
|
inline SSLServer::~SSLServer()
|
|
{
|
|
if (ctx_) {
|
|
SSL_CTX_free(ctx_);
|
|
}
|
|
}
|
|
|
|
inline bool SSLServer::is_valid() const
|
|
{
|
|
return ctx_;
|
|
}
|
|
|
|
inline bool SSLServer::read_and_close_socket(socket_t sock)
|
|
{
|
|
auto keep_alive = http_version_ == HttpVersion::v1_1;
|
|
|
|
return detail::read_and_close_socket_ssl(
|
|
sock,
|
|
keep_alive,
|
|
ctx_,
|
|
SSL_accept,
|
|
[](SSL* /*ssl*/) {},
|
|
[this](Stream& strm, bool last_connection) {
|
|
return process_request(strm, last_connection);
|
|
});
|
|
}
|
|
|
|
// SSL HTTP client implementation
|
|
inline SSLClient::SSLClient(
|
|
const char* host, int port, size_t timeout_sec, HttpVersion http_version)
|
|
: Client(host, port, timeout_sec, http_version)
|
|
{
|
|
ctx_ = SSL_CTX_new(SSLv23_client_method());
|
|
}
|
|
|
|
inline SSLClient::~SSLClient()
|
|
{
|
|
if (ctx_) {
|
|
SSL_CTX_free(ctx_);
|
|
}
|
|
}
|
|
|
|
inline bool SSLClient::is_valid() const
|
|
{
|
|
return ctx_;
|
|
}
|
|
|
|
inline bool SSLClient::read_and_close_socket(socket_t sock, Request& req, Response& res)
|
|
{
|
|
return is_valid() && detail::read_and_close_socket_ssl(
|
|
sock, false,
|
|
ctx_, SSL_connect,
|
|
[&](SSL* ssl) {
|
|
SSL_set_tlsext_host_name(ssl, host_.c_str());
|
|
},
|
|
[&](Stream& strm, bool /*last_connection*/) {
|
|
return process_request(strm, req, res);
|
|
});
|
|
}
|
|
#endif
|
|
|
|
} // namespace httplib
|
|
|
|
#endif
|
|
|
|
// vim: et ts=4 sw=4 cin cino={1s ff=unix
|