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Diffstat (limited to '')
| -rw-r--r-- | externals/httplib/httplib.h | 4677 |
1 files changed, 3025 insertions, 1652 deletions
diff --git a/externals/httplib/httplib.h b/externals/httplib/httplib.h index dd9afe693..fa2edcc94 100644 --- a/externals/httplib/httplib.h +++ b/externals/httplib/httplib.h @@ -1,357 +1,768 @@ // // httplib.h // -// Copyright (c) 2017 Yuji Hirose. All rights reserved. +// Copyright (c) 2019 Yuji Hirose. All rights reserved. // MIT License // -#ifndef _CPPHTTPLIB_HTTPLIB_H_ -#define _CPPHTTPLIB_HTTPLIB_H_ +#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_READ_TIMEOUT_SECOND +#define CPPHTTPLIB_READ_TIMEOUT_SECOND 5 +#endif + +#ifndef CPPHTTPLIB_READ_TIMEOUT_USECOND +#define CPPHTTPLIB_READ_TIMEOUT_USECOND 0 +#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_RECV_BUFSIZ +#define CPPHTTPLIB_RECV_BUFSIZ size_t(4096u) +#endif + +#ifndef CPPHTTPLIB_THREAD_POOL_COUNT +#define CPPHTTPLIB_THREAD_POOL_COUNT 8 +#endif #ifdef _WIN32 #ifndef _CRT_SECURE_NO_WARNINGS #define _CRT_SECURE_NO_WARNINGS -#endif +#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 +typedef __int64 ssize_t; +#else +typedef int ssize_t; #endif -#if defined(_MSC_VER) && _MSC_VER < 1900 +#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 +#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 +#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> -#undef min -#undef max +#ifndef WSA_FLAG_NO_HANDLE_INHERIT +#define WSA_FLAG_NO_HANDLE_INHERIT 0x80 +#endif + +#ifdef _MSC_VER +#pragma comment(lib, "ws2_32.lib") +#endif #ifndef strcasecmp #define strcasecmp _stricmp -#endif +#endif // strcasecmp typedef SOCKET socket_t; -#else -#include <pthread.h> -#include <unistd.h> -#include <netdb.h> +#ifdef CPPHTTPLIB_USE_POLL +#define poll(fds, nfds, timeout) WSAPoll(fds, nfds, timeout) +#endif + +#else // not _WIN32 + +#include <arpa/inet.h> #include <cstring> +#include <netdb.h> #include <netinet/in.h> -#include <arpa/inet.h> +#ifdef CPPHTTPLIB_USE_POLL +#include <poll.h> +#endif +#include <pthread.h> #include <signal.h> -#include <sys/socket.h> #include <sys/select.h> +#include <sys/socket.h> +#include <unistd.h> typedef int socket_t; #define INVALID_SOCKET (-1) -#endif +#endif //_WIN32 +#include <assert.h> +#include <atomic> +#include <condition_variable> +#include <errno.h> +#include <fcntl.h> #include <fstream> #include <functional> +#include <list> #include <map> #include <memory> #include <mutex> +#include <random> #include <regex> #include <string> -#include <thread> #include <sys/stat.h> -#include <fcntl.h> -#include <assert.h> +#include <thread> #ifdef CPPHTTPLIB_OPENSSL_SUPPORT +#include <openssl/err.h> #include <openssl/ssl.h> +#include <openssl/x509v3.h> + +// #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 -/* - * Configuration - */ -#define CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND 5 -#define CPPHTTPLIB_KEEPALIVE_TIMEOUT_USECOND 0 - -namespace httplib -{ +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); - }); - } + bool operator()(const std::string &s1, const std::string &s2) const { + return std::lexicographical_compare( + s1.begin(), s1.end(), s2.begin(), s2.end(), + [](char c1, char c2) { return ::tolower(c1) < ::tolower(c2); }); + } }; } // namespace detail enum class HttpVersion { v1_0 = 0, v1_1 }; -typedef std::multimap<std::string, std::string, detail::ci> Headers; +typedef std::multimap<std::string, std::string, detail::ci> Headers; + +typedef std::multimap<std::string, std::string> Params; +typedef std::smatch Match; + +typedef std::function<void(const char *data, size_t data_len)> DataSink; -template<typename uint64_t, typename... Args> -std::pair<std::string, std::string> make_range_header(uint64_t value, Args... args); +typedef std::function<void()> Done; -typedef std::multimap<std::string, std::string> Params; -typedef std::smatch Match; -typedef std::function<void (uint64_t current, uint64_t total)> Progress; +typedef std::function<void(size_t offset, size_t length, DataSink sink, + Done done)> + ContentProvider; + +typedef std::function<bool(const char *data, size_t data_length, size_t offset, + uint64_t content_length)> + ContentReceiver; + +typedef std::function<bool(uint64_t current, uint64_t total)> Progress; + +struct Response; +typedef std::function<bool(const Response &response)> ResponseHandler; struct MultipartFile { - std::string filename; - std::string content_type; - size_t offset = 0; - size_t length = 0; + std::string filename; + std::string content_type; + size_t offset = 0; + size_t length = 0; }; typedef std::multimap<std::string, MultipartFile> MultipartFiles; +struct MultipartFormData { + std::string name; + std::string content; + std::string filename; + std::string content_type; +}; +typedef std::vector<MultipartFormData> MultipartFormDataItems; + +typedef std::pair<ssize_t, ssize_t> Range; +typedef std::vector<Range> Ranges; + struct Request { - std::string version; - std::string method; - std::string target; - std::string path; - Headers headers; - std::string body; - Params params; - MultipartFiles files; - Match matches; - - Progress progress; - - bool has_header(const char* key) const; - std::string get_header_value(const char* key) const; - void set_header(const char* key, const char* val); - - bool has_param(const char* key) const; - std::string get_param_value(const char* key) const; - - bool has_file(const char* key) const; - MultipartFile get_file_value(const char* key) const; + std::string method; + std::string path; + Headers headers; + std::string body; + + // for server + std::string version; + std::string target; + Params params; + MultipartFiles files; + Ranges ranges; + Match matches; + + // for client + size_t redirect_count = CPPHTTPLIB_REDIRECT_MAX_COUNT; + ResponseHandler response_handler; + ContentReceiver content_receiver; + 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 has_file(const char *key) const; + MultipartFile get_file_value(const char *key) const; }; struct Response { - std::string version; - int status; - Headers headers; - std::string body; + std::string version; + int status; + Headers headers; + std::string body; - bool has_header(const char* key) const; - std::string get_header_value(const char* key) const; - void set_header(const char* key, const char* val); + 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* uri); - void set_content(const char* s, size_t n, const char* content_type); - void set_content(const std::string& s, const char* content_type); + void set_redirect(const char *uri); + void set_content(const char *s, size_t n, const char *content_type); + void set_content(const std::string &s, const char *content_type); - Response() : status(-1) {} + void set_content_provider( + size_t length, + std::function<void(size_t offset, size_t length, DataSink sink)> provider, + std::function<void()> resource_releaser = [] {}); + + void set_chunked_content_provider( + std::function<void(size_t offset, DataSink sink, Done done)> provider, + std::function<void()> resource_releaser = [] {}); + + Response() : status(-1), content_provider_resource_length(0) {} + + ~Response() { + if (content_provider_resource_releaser) { + content_provider_resource_releaser(); + } + } + + size_t content_provider_resource_length; + ContentProvider content_provider; + std::function<void()> content_provider_resource_releaser; }; class Stream { public: - virtual ~Stream() {} - virtual int read(char* ptr, size_t size) = 0; - virtual int write(const char* ptr, size_t size1) = 0; - virtual int write(const char* ptr) = 0; - virtual std::string get_remote_addr() = 0; - - template <typename ...Args> - void write_format(const char* fmt, const Args& ...args); + virtual ~Stream() {} + virtual int read(char *ptr, size_t size) = 0; + virtual int write(const char *ptr, size_t size1) = 0; + virtual int write(const char *ptr) = 0; + virtual int write(const std::string &s) = 0; + virtual std::string get_remote_addr() const = 0; + + template <typename... Args> + int write_format(const char *fmt, const Args &... args); }; class SocketStream : public Stream { public: - SocketStream(socket_t sock); - virtual ~SocketStream(); + SocketStream(socket_t sock); + virtual ~SocketStream(); + + virtual int read(char *ptr, size_t size); + virtual int write(const char *ptr, size_t size); + virtual int write(const char *ptr); + virtual int write(const std::string &s); + virtual std::string get_remote_addr() const; + +private: + socket_t sock_; +}; + +class BufferStream : public Stream { +public: + BufferStream() {} + virtual ~BufferStream() {} + + virtual int read(char *ptr, size_t size); + virtual int write(const char *ptr, size_t size); + virtual int write(const char *ptr); + virtual int write(const std::string &s); + virtual std::string get_remote_addr() const; + + const std::string &get_buffer() const; + +private: + std::string buffer; +}; + +class TaskQueue { +public: + TaskQueue() {} + virtual ~TaskQueue() {} + virtual void enqueue(std::function<void()> fn) = 0; + virtual void shutdown() = 0; +}; - virtual int read(char* ptr, size_t size); - virtual int write(const char* ptr, size_t size); - virtual int write(const char* ptr); - virtual std::string get_remote_addr(); +#if CPPHTTPLIB_THREAD_POOL_COUNT > 0 +class ThreadPool : public TaskQueue { +public: + ThreadPool(size_t n) : shutdown_(false) { + while (n) { + auto t = std::make_shared<std::thread>(worker(*this)); + threads_.push_back(t); + n--; + } + } + + ThreadPool(const ThreadPool &) = delete; + virtual ~ThreadPool() {} + + virtual void enqueue(std::function<void()> fn) override { + std::unique_lock<std::mutex> lock(mutex_); + jobs_.push_back(fn); + cond_.notify_one(); + } + + virtual 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: - socket_t sock_; + struct worker { + 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::shared_ptr<std::thread>> threads_; + std::list<std::function<void()>> jobs_; + + bool shutdown_; + + std::condition_variable cond_; + std::mutex mutex_; +}; +#else +class Threads : public TaskQueue { +public: + Threads() : running_threads_(0) {} + virtual ~Threads() {} + + virtual void enqueue(std::function<void()> fn) override { + std::thread([=]() { + { + std::lock_guard<std::mutex> guard(running_threads_mutex_); + running_threads_++; + } + + fn(); + + { + std::lock_guard<std::mutex> guard(running_threads_mutex_); + running_threads_--; + } + }).detach(); + } + + virtual void shutdown() override { + for (;;) { + std::this_thread::sleep_for(std::chrono::milliseconds(10)); + std::lock_guard<std::mutex> guard(running_threads_mutex_); + if (!running_threads_) { break; } + } + } + +private: + std::mutex running_threads_mutex_; + int running_threads_; }; +#endif class Server { public: - typedef std::function<void (const Request&, Response&)> Handler; - typedef std::function<void (const Request&, const Response&)> Logger; + typedef std::function<void(const Request &, Response &)> Handler; + typedef std::function<void(const Request &, const Response &)> Logger; + + Server(); - Server(); + virtual ~Server(); - virtual ~Server(); + virtual bool is_valid() const; - virtual bool is_valid() const; + Server &Get(const char *pattern, Handler handler); + Server &Post(const char *pattern, Handler handler); - Server& Get(const char* pattern, Handler handler); - Server& Post(const char* pattern, Handler handler); + Server &Put(const char *pattern, Handler handler); + Server &Patch(const char *pattern, Handler handler); + Server &Delete(const char *pattern, Handler handler); + Server &Options(const char *pattern, Handler handler); - Server& Put(const char* pattern, Handler handler); - Server& Delete(const char* pattern, Handler handler); - Server& Options(const char* pattern, Handler handler); + bool set_base_dir(const char *path); + void set_file_request_handler(Handler handler); - bool set_base_dir(const char* path); + void set_error_handler(Handler handler); + void set_logger(Logger logger); - void set_error_handler(Handler handler); - void set_logger(Logger logger); + void set_keep_alive_max_count(size_t count); + void set_payload_max_length(size_t length); - void set_keep_alive_max_count(size_t count); + int bind_to_any_port(const char *host, int socket_flags = 0); + bool listen_after_bind(); - 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 listen(const char* host, int port, int socket_flags = 0); + bool is_running() const; + void stop(); - bool is_running() const; - void stop(); + std::function<TaskQueue *(void)> new_task_queue; protected: - bool process_request(Stream& strm, bool last_connection, bool& connection_close); + bool process_request(Stream &strm, bool last_connection, + bool &connection_close, + std::function<void(Request &)> setup_request); - size_t keep_alive_max_count_; + size_t keep_alive_max_count_; + size_t payload_max_length_; private: - typedef std::vector<std::pair<std::regex, Handler>> Handlers; - - socket_t create_server_socket(const char* host, int port, int socket_flags) const; - int bind_internal(const char* host, int port, int socket_flags); - bool listen_internal(); - - bool routing(Request& req, Response& res); - bool handle_file_request(Request& req, Response& res); - bool dispatch_request(Request& req, Response& res, Handlers& handlers); - - bool parse_request_line(const char* s, Request& req); - void write_response(Stream& strm, bool last_connection, const Request& req, Response& res); - - virtual bool read_and_close_socket(socket_t sock); - - bool is_running_; - socket_t svr_sock_; - std::string base_dir_; - Handlers get_handlers_; - Handlers post_handlers_; - Handlers put_handlers_; - Handlers delete_handlers_; - Handlers options_handlers_; - Handler error_handler_; - Logger logger_; - - // TODO: Use thread pool... - std::mutex running_threads_mutex_; - int running_threads_; + typedef std::vector<std::pair<std::regex, Handler>> Handlers; + + socket_t create_server_socket(const char *host, int port, + int socket_flags) const; + int bind_internal(const char *host, int port, int socket_flags); + bool listen_internal(); + + bool routing(Request &req, Response &res); + bool handle_file_request(Request &req, Response &res); + bool dispatch_request(Request &req, Response &res, Handlers &handlers); + + bool parse_request_line(const char *s, Request &req); + bool write_response(Stream &strm, bool last_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); + + virtual bool process_and_close_socket(socket_t sock); + + std::atomic<bool> is_running_; + std::atomic<socket_t> svr_sock_; + std::string base_dir_; + Handler file_request_handler_; + Handlers get_handlers_; + Handlers post_handlers_; + Handlers put_handlers_; + Handlers patch_handlers_; + Handlers delete_handlers_; + Handlers options_handlers_; + Handler error_handler_; + Logger logger_; }; class Client { public: - Client( - const char* host, - int port = 80, - size_t timeout_sec = 300); + Client(const char *host, int port = 80, time_t timeout_sec = 300); + + 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); - virtual ~Client(); + std::shared_ptr<Response> Get(const char *path, + ContentReceiver content_receiver); - virtual bool is_valid() const; + std::shared_ptr<Response> Get(const char *path, const Headers &headers, + ContentReceiver content_receiver); - std::shared_ptr<Response> Get(const char* path, Progress progress = nullptr); - std::shared_ptr<Response> Get(const char* path, const Headers& headers, Progress progress = nullptr); + std::shared_ptr<Response> + Get(const char *path, 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> Get(const char *path, const Headers &headers, + ContentReceiver content_receiver, + Progress progress); - 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> Get(const char *path, const Headers &headers, + ResponseHandler response_handler, + ContentReceiver content_receiver); - std::shared_ptr<Response> Post(const char* path, const Params& params); - std::shared_ptr<Response> Post(const char* path, const Headers& headers, const Params& params); + std::shared_ptr<Response> Get(const char *path, const Headers &headers, + ResponseHandler response_handler, + ContentReceiver content_receiver, + Progress progress); - 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> Head(const char *path); - std::shared_ptr<Response> Delete(const char* path); - std::shared_ptr<Response> Delete(const char* path, const Headers& headers); + std::shared_ptr<Response> Head(const char *path, const Headers &headers); - std::shared_ptr<Response> Options(const char* path); - std::shared_ptr<Response> Options(const char* path, const Headers& headers); + std::shared_ptr<Response> Post(const char *path, const std::string &body, + const char *content_type); - bool send(Request& req, Response& res); + 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, 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, 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> 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> 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); + + bool send(const std::vector<Request> &requests, + std::vector<Response> &responses); + + void set_keep_alive_max_count(size_t count); + + void follow_location(bool on); protected: - bool process_request(Stream& strm, Request& req, Response& res, bool& connection_close); + bool process_request(Stream &strm, const Request &req, Response &res, + bool last_connection, bool &connection_close); - const std::string host_; - const int port_; - size_t timeout_sec_; - const std::string host_and_port_; + const std::string host_; + const int port_; + time_t timeout_sec_; + const std::string host_and_port_; + size_t keep_alive_max_count_; + size_t follow_location_; private: - socket_t create_client_socket() const; - bool read_response_line(Stream& strm, Response& res); - void write_request(Stream& strm, Request& req); - - virtual bool read_and_close_socket(socket_t sock, Request& req, Response& res); + socket_t create_client_socket() const; + bool read_response_line(Stream &strm, Response &res); + void write_request(Stream &strm, const Request &req, bool last_connection); + bool redirect(const Request &req, Response &res); + + virtual bool process_and_close_socket( + socket_t sock, size_t request_count, + std::function<bool(Stream &strm, bool last_connection, + bool &connection_close)> + 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; + 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); +} + #ifdef CPPHTTPLIB_OPENSSL_SUPPORT class SSLSocketStream : public Stream { public: - SSLSocketStream(socket_t sock, SSL* ssl); - virtual ~SSLSocketStream(); + SSLSocketStream(socket_t sock, SSL *ssl); + virtual ~SSLSocketStream(); - virtual int read(char* ptr, size_t size); - virtual int write(const char* ptr, size_t size); - virtual int write(const char* ptr); - virtual std::string get_remote_addr(); + virtual int read(char *ptr, size_t size); + virtual int write(const char *ptr, size_t size); + virtual int write(const char *ptr); + virtual int write(const std::string &s); + virtual std::string get_remote_addr() const; private: - socket_t sock_; - SSL* ssl_; + socket_t sock_; + SSL *ssl_; }; class SSLServer : public Server { public: - SSLServer( - const char* cert_path, const char* private_key_path); + 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); - virtual ~SSLServer(); + virtual ~SSLServer(); - virtual bool is_valid() const; + virtual bool is_valid() const; private: - virtual bool read_and_close_socket(socket_t sock); + virtual bool process_and_close_socket(socket_t sock); - SSL_CTX* ctx_; - std::mutex ctx_mutex_; + SSL_CTX *ctx_; + std::mutex ctx_mutex_; }; class SSLClient : public Client { public: - SSLClient( - const char* host, - int port = 80, - size_t timeout_sec = 300); + SSLClient(const char *host, int port = 443, time_t timeout_sec = 300, + const char *client_cert_path = nullptr, + const char *client_key_path = nullptr); - virtual ~SSLClient(); + virtual ~SSLClient(); - virtual bool is_valid() const; + virtual bool is_valid() const; -private: - virtual bool read_and_close_socket(socket_t sock, Request& req, Response& res); + void set_ca_cert_path(const char *ca_ceert_file_path, + const char *ca_cert_dir_path = nullptr); + void enable_server_certificate_verification(bool enabled); - SSL_CTX* ctx_; - std::mutex ctx_mutex_; + long get_openssl_verify_result() const; + + SSL_CTX* ssl_context() const noexcept; + +private: + virtual bool process_and_close_socket( + socket_t sock, size_t request_count, + std::function<bool(Stream &strm, bool last_connection, + bool &connection_close)> + callback); + virtual bool is_ssl() const; + + 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::vector<std::string> host_components_; + std::string ca_cert_file_path_; + std::string ca_cert_dir_path_; + bool server_certificate_verification_ = false; + long verify_result_ = 0; }; #endif @@ -360,913 +771,1237 @@ private: */ namespace detail { -template <class Fn> -void split(const char* b, const char* e, char d, Fn fn) -{ - int i = 0; - int beg = 0; +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; +} - while (e ? (b + i != e) : (b[i] != '\0')) { - if (b[i] == d) { - fn(&b[beg], &b[i]); - beg = i + 1; - } - i++; +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] = (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; +} + +// 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 (uint8_t c : in) { + val = (val << 8) + 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; +} - if (i) { - fn(&b[beg], &b[i]); +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], 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(); +} + +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) { + 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(); } + } - 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 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; - } - } + bool getline() { + fixed_buffer_used_size_ = 0; + glowable_buffer_.clear(); - append(byte); + for (size_t i = 0;; i++) { + char byte; + auto n = strm_.read(&byte, 1); - if (byte == '\n') { - break; - } + if (n < 0) { + return false; + } else if (n == 0) { + if (i == 0) { + return false; + } else { + break; } + } - return true; - } + append(byte); -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; - } + if (byte == '\n') { break; } } - Stream& strm_; - char* fixed_buffer_; - const size_t fixed_buffer_size_; - size_t fixed_buffer_used_size_; - std::string glowable_buffer_; + return true; + } + +private: + void append(char c) { + if (fixed_buffer_used_size_ < fixed_buffer_size_ - 1) { + fixed_buffer_[fixed_buffer_used_size_++] = c; + fixed_buffer_[fixed_buffer_used_size_] = '\0'; + } else { + if (glowable_buffer_.empty()) { + assert(fixed_buffer_[fixed_buffer_used_size_] == '\0'); + glowable_buffer_.assign(fixed_buffer_, fixed_buffer_used_size_); + } + glowable_buffer_ += c; + } + } + + Stream &strm_; + char *fixed_buffer_; + const size_t fixed_buffer_size_; + size_t fixed_buffer_used_size_; + std::string glowable_buffer_; }; -inline int close_socket(socket_t sock) -{ +inline int close_socket(socket_t sock) { #ifdef _WIN32 - return closesocket(sock); + return closesocket(sock); #else - return close(sock); + return close(sock); #endif } -inline int select_read(socket_t sock, size_t sec, size_t usec) -{ - fd_set fds; - FD_ZERO(&fds); - FD_SET(sock, &fds); +inline int 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; - timeval tv; - tv.tv_sec = sec; - tv.tv_usec = usec; + auto timeout = static_cast<int>(sec * 1000 + usec / 1000); - return select(sock + 1, &fds, NULL, NULL, &tv); -} + return poll(&pfd_read, 1, timeout); +#else + fd_set fds; + FD_ZERO(&fds); + FD_SET(sock, &fds); -inline bool wait_until_socket_is_ready(socket_t sock, size_t sec, size_t usec) -{ - fd_set fdsr; - FD_ZERO(&fdsr); - FD_SET(sock, &fdsr); + timeval tv; + tv.tv_sec = static_cast<long>(sec); + tv.tv_usec = static_cast<long>(usec); - auto fdsw = fdsr; - auto fdse = fdsr; + return select(static_cast<int>(sock + 1), &fds, nullptr, nullptr, &tv); +#endif +} - timeval tv; - tv.tv_sec = sec; - tv.tv_usec = usec; +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; - if (select(sock + 1, &fdsr, &fdsw, &fdse, &tv) < 0) { - return false; - } else if (FD_ISSET(sock, &fdsr) || FD_ISSET(sock, &fdsw)) { - int error = 0; - socklen_t len = sizeof(error); - if (getsockopt(sock, SOL_SOCKET, SO_ERROR, (char*)&error, &len) < 0 || error) { - return false; - } - } else { - return false; - } + auto timeout = static_cast<int>(sec * 1000 + usec / 1000); - return true; + if (poll(&pfd_read, 1, timeout) > 0 && + pfd_read.revents & (POLLIN | POLLOUT)) { + int error = 0; + socklen_t len = sizeof(error); + return getsockopt(sock, SOL_SOCKET, SO_ERROR, reinterpret_cast<char*>(&error), &len) >= 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<long>(usec); + + if (select(static_cast<int>(sock + 1), &fdsr, &fdsw, &fdse, &tv) > 0 && + (FD_ISSET(sock, &fdsr) || FD_ISSET(sock, &fdsw))) { + int error = 0; + socklen_t len = sizeof(error); + return getsockopt(sock, SOL_SOCKET, SO_ERROR, (char *)&error, &len) >= 0 && + !error; + } + return false; +#endif } template <typename T> -inline bool read_and_close_socket(socket_t sock, size_t keep_alive_max_count, T callback) -{ - bool ret = false; - - if (keep_alive_max_count > 0) { - auto count = keep_alive_max_count; - while (count > 0 && - detail::select_read(sock, - CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND, - CPPHTTPLIB_KEEPALIVE_TIMEOUT_USECOND) > 0) { - SocketStream strm(sock); - auto last_connection = count == 1; - auto connection_close = false; - - ret = callback(strm, last_connection, connection_close); - if (!ret || connection_close) { - break; - } +inline bool process_and_close_socket(bool is_client_request, socket_t sock, + size_t keep_alive_max_count, T callback) { + assert(keep_alive_max_count > 0); - count--; - } - } else { - SocketStream strm(sock); - auto dummy_connection_close = false; - ret = callback(strm, true, dummy_connection_close); + bool ret = false; + + if (keep_alive_max_count > 1) { + auto count = keep_alive_max_count; + while (count > 0 && + (is_client_request || + detail::select_read(sock, CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND, + CPPHTTPLIB_KEEPALIVE_TIMEOUT_USECOND) > 0)) { + SocketStream strm(sock); + auto last_connection = count == 1; + auto connection_close = false; + + ret = callback(strm, last_connection, connection_close); + if (!ret || connection_close) { break; } + + count--; } + } else { + SocketStream strm(sock); + auto dummy_connection_close = false; + ret = callback(strm, true, dummy_connection_close); + } - close_socket(sock); - return ret; + close_socket(sock); + return ret; } -inline int shutdown_socket(socket_t sock) -{ +inline int shutdown_socket(socket_t sock) { #ifdef _WIN32 - return shutdown(sock, SD_BOTH); + return shutdown(sock, SD_BOTH); #else - return shutdown(sock, SHUT_RDWR); + return shutdown(sock, SHUT_RDWR); #endif } template <typename Fn> -socket_t create_socket(const char* host, int port, Fn fn, int socket_flags = 0) -{ +socket_t create_socket(const char *host, int port, Fn fn, + int socket_flags = 0) { #ifdef _WIN32 #define SO_SYNCHRONOUS_NONALERT 0x20 #define SO_OPENTYPE 0x7008 - int opt = SO_SYNCHRONOUS_NONALERT; - setsockopt(INVALID_SOCKET, SOL_SOCKET, SO_OPENTYPE, (char*)&opt, sizeof(opt)); + int opt = SO_SYNCHRONOUS_NONALERT; + setsockopt(INVALID_SOCKET, SOL_SOCKET, SO_OPENTYPE, (char *)&opt, + sizeof(opt)); #endif - // Get address info - struct addrinfo hints; - struct addrinfo *result; + // 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; + 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); + auto service = std::to_string(port); - if (getaddrinfo(host, service.c_str(), &hints, &result)) { - return INVALID_SOCKET; - } + if (getaddrinfo(host, service.c_str(), &hints, &result)) { + return INVALID_SOCKET; + } - for (auto rp = result; rp; rp = rp->ai_next) { - // Create a socket - auto sock = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol); - if (sock == INVALID_SOCKET) { - continue; - } + 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); +#else + auto sock = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol); +#endif + if (sock == INVALID_SOCKET) { continue; } - // Make 'reuse address' option available - int yes = 1; - setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (char*)&yes, sizeof(yes)); +#ifndef _WIN32 + if (fcntl(sock, F_SETFD, FD_CLOEXEC) == -1) { continue; } +#endif - // bind or connect - if (fn(sock, *rp)) { - freeaddrinfo(result); - return sock; - } + // Make 'reuse address' option available + int yes = 1; + setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, reinterpret_cast<char*>(&yes), sizeof(yes)); +#ifdef SO_REUSEPORT + setsockopt(sock, SOL_SOCKET, SO_REUSEPORT, reinterpret_cast<char*>(&yes), sizeof(yes)); +#endif - close_socket(sock); + // bind or connect + if (fn(sock, *rp)) { + freeaddrinfo(result); + return sock; } - freeaddrinfo(result); - return INVALID_SOCKET; + close_socket(sock); + } + + freeaddrinfo(result); + return INVALID_SOCKET; } -inline void set_nonblocking(socket_t sock, bool nonblocking) -{ +inline void set_nonblocking(socket_t sock, bool nonblocking) { #ifdef _WIN32 - auto flags = nonblocking ? 1UL : 0UL; - ioctlsocket(sock, FIONBIO, &flags); + 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))); + auto flags = fcntl(sock, F_GETFL, 0); + fcntl(sock, F_SETFL, + nonblocking ? (flags | O_NONBLOCK) : (flags & (~O_NONBLOCK))); #endif } -inline bool is_connection_error() -{ +inline bool is_connection_error() { #ifdef _WIN32 - return WSAGetLastError() != WSAEWOULDBLOCK; + return WSAGetLastError() != WSAEWOULDBLOCK; #else - return errno != EINPROGRESS; + return errno != EINPROGRESS; #endif } inline std::string get_remote_addr(socket_t sock) { - struct sockaddr_storage addr; - socklen_t len = sizeof(addr); + struct sockaddr_storage addr; + socklen_t len = sizeof(addr); + + if (!getpeername(sock, reinterpret_cast<struct sockaddr *>(&addr), &len)) { + char ipstr[NI_MAXHOST]; + + if (!getnameinfo(reinterpret_cast<struct sockaddr *>(&addr), len, ipstr, sizeof(ipstr), + nullptr, 0, NI_NUMERICHOST)) { + return ipstr; + } + } + + 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 206: return "Partial Content"; + case 301: return "Moved Permanently"; + case 302: return "Found"; + case 303: return "See Other"; + case 304: return "Not Modified"; + case 400: return "Bad Request"; + case 403: return "Forbidden"; + case 404: return "Not Found"; + case 413: return "Payload Too Large"; + case 414: return "Request-URI Too Long"; + case 415: return "Unsupported Media Type"; + case 416: return "Range Not Satisfiable"; + + default: + case 500: return "Internal Server Error"; + } +} - if (!getpeername(sock, (struct sockaddr*)&addr, &len)) { - char ipstr[NI_MAXHOST]; +#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"; +} - if (!getnameinfo((struct sockaddr*)&addr, len, - ipstr, sizeof(ipstr), nullptr, 0, NI_NUMERICHOST)) { - return ipstr; - } - } +inline bool compress(std::string &content) { + z_stream strm; + strm.zalloc = Z_NULL; + strm.zfree = Z_NULL; + strm.opaque = Z_NULL; - return std::string(); -} + auto ret = deflateInit2(&strm, Z_DEFAULT_COMPRESSION, Z_DEFLATED, 31, 8, + Z_DEFAULT_STRATEGY); + if (ret != Z_OK) { return false; } -inline bool is_file(const std::string& path) -{ - struct stat st; - return stat(path.c_str(), &st) >= 0 && S_ISREG(st.st_mode); -} + strm.avail_in = content.size(); + strm.next_in = const_cast<Bytef*>(reinterpret_cast<const Bytef*>(content.data())); + + std::string compressed; + + const auto bufsiz = 16384; + char buff[bufsiz]; + do { + strm.avail_out = bufsiz; + strm.next_out = reinterpret_cast<Bytef*>(buff); + ret = deflate(&strm, Z_FINISH); + assert(ret != Z_STREAM_ERROR); + compressed.append(buff, bufsiz - strm.avail_out); + } while (strm.avail_out == 0); + + assert(ret == Z_STREAM_END); + assert(strm.avail_in == 0); -inline bool is_dir(const std::string& path) -{ - struct stat st; - return stat(path.c_str(), &st) >= 0 && S_ISDIR(st.st_mode); + content.swap(compressed); + + deflateEnd(&strm); + return true; } -inline bool is_valid_path(const std::string& path) { - size_t level = 0; - size_t i = 0; +class decompressor { +public: + decompressor() { + strm.zalloc = Z_NULL; + strm.zfree = Z_NULL; + strm.opaque = Z_NULL; - // Skip slash - while (i < path.size() && path[i] == '/') { - i++; - } + // 15 is the value of wbits, which should be at the maximum possible value + // to ensure that any gzip stream can be decoded. The offset of 16 specifies + // that the stream to decompress will be formatted with a gzip wrapper. + is_valid_ = inflateInit2(&strm, 16 + 15) == Z_OK; + } - while (i < path.size()) { - // Read component - auto beg = i; - while (i < path.size() && path[i] != '/') { - i++; - } + ~decompressor() { inflateEnd(&strm); } - auto len = i - beg; - assert(len > 0); + bool is_valid() const { return is_valid_; } - if (!path.compare(beg, len, ".")) { - ; - } else if (!path.compare(beg, len, "..")) { - if (level == 0) { - return false; - } - level--; - } else { - level++; - } + template <typename T> + bool decompress(const char *data, size_t data_length, T callback) { + int ret = Z_OK; - // Skip slash - while (i < path.size() && path[i] == '/') { - i++; - } - } + strm.avail_in = data_length; + strm.next_in = const_cast<Bytef*>(reinterpret_cast<const Bytef *>(data)); - return true; -} + const auto bufsiz = 16384; + char buff[bufsiz]; + do { + strm.avail_out = bufsiz; + strm.next_out = reinterpret_cast<Bytef*>(buff); + + 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, bufsiz - strm.avail_out)) { return false; } + } while (strm.avail_out == 0); -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); -} + return ret == Z_STREAM_END; + } -inline std::string file_extension(const std::string& path) -{ - std::smatch m; - auto pat = std::regex("\\.([a-zA-Z0-9]+)$"); - if (std::regex_search(path, m, pat)) { - return m[1].str(); - } - return std::string(); -} - -inline const char* find_content_type(const std::string& path) -{ - auto ext = file_extension(path); - if (ext == "txt") { - return "text/plain"; - } else if (ext == "html") { - return "text/html"; - } else if (ext == "css") { - return "text/css"; - } else if (ext == "jpeg" || ext == "jpg") { - return "image/jpg"; - } else if (ext == "png") { - return "image/png"; - } else if (ext == "gif") { - return "image/gif"; - } else if (ext == "svg") { - return "image/svg+xml"; - } else if (ext == "ico") { - return "image/x-icon"; - } else if (ext == "json") { - return "application/json"; - } else if (ext == "pdf") { - return "application/pdf"; - } else if (ext == "js") { - return "application/javascript"; - } else if (ext == "xml") { - return "application/xml"; - } else if (ext == "xhtml") { - return "application/xhtml+xml"; - } - return nullptr; -} - -inline const char* status_message(int status) -{ - switch (status) { - case 200: return "OK"; - case 301: return "Moved Permanently"; - case 302: return "Found"; - case 303: return "See Other"; - case 304: return "Not Modified"; - case 400: return "Bad Request"; - case 403: return "Forbidden"; - case 404: return "Not Found"; - case 415: return "Unsupported Media Type"; - default: - case 500: return "Internal Server Error"; - } +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, const char* def) -{ - auto it = headers.find(key); - if (it != headers.end()) { - return it->second.c_str(); - } - return def; +inline const char *get_header_value(const Headers &headers, const char *key, + size_t id = 0, const char *def = nullptr) { + auto it = headers.find(key); + std::advance(it, id); + 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 uint64_t get_header_value_uint64(const Headers &headers, const char *key, + int def = 0) { + auto it = headers.find(key); + if (it != headers.end()) { + return std::strtoull(it->second.data(), nullptr, 10); + } + return def; } -inline bool read_headers(Stream& strm, Headers& headers) -{ - static std::regex re(R"((.+?):\s*(.+?)\s*\r\n)"); +inline bool read_headers(Stream &strm, Headers &headers) { + static std::regex re(R"((.+?):\s*(.+?)\s*\r\n)"); - const auto bufsiz = 2048; - char buf[bufsiz]; + const auto bufsiz = 2048; + char buf[bufsiz]; - stream_line_reader reader(strm, 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); - } + 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; + return true; } -inline bool read_content_with_length(Stream& strm, std::string& out, size_t len, Progress progress) -{ - out.assign(len, 0); - size_t r = 0; - while (r < len){ - auto n = strm.read(&out[r], len - r); - if (n <= 0) { - return false; - } +typedef std::function<bool(const char *data, size_t data_length)> + ContentReceiverCore; - r += n; +inline bool read_content_with_length(Stream &strm, uint64_t len, + Progress progress, + ContentReceiverCore out) { + char buf[CPPHTTPLIB_RECV_BUFSIZ]; - if (progress) { - progress(r, len); - } - } + 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; } - return true; -} + if (!out(buf, n)) { return false; } -inline bool read_content_without_length(Stream& strm, std::string& out) -{ - for (;;) { - char byte; - auto n = strm.read(&byte, 1); - if (n < 0) { - return false; - } else if (n == 0) { - return true; - } - out += byte; + r += n; + + if (progress) { + if (!progress(r, len)) { return false; } } + } - return true; + return true; } -inline bool read_content_chunked(Stream& strm, std::string& out) -{ - const auto bufsiz = 16; - char buf[bufsiz]; - - stream_line_reader reader(strm, buf, bufsiz); +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 += n; + } +} - if (!reader.getline()) { - return false; +inline bool read_content_without_length(Stream &strm, ContentReceiverCore 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, n)) { return false; } + } - auto chunk_len = std::stoi(reader.ptr(), 0, 16); + return true; +} - while (chunk_len > 0){ - std::string chunk; - if (!read_content_with_length(strm, chunk, chunk_len, nullptr)) { - return false; - } +inline bool read_content_chunked(Stream &strm, ContentReceiverCore out) { + const auto bufsiz = 16; + char buf[bufsiz]; - if (!reader.getline()) { - return false; - } + stream_line_reader reader(strm, buf, bufsiz); - if (strcmp(reader.ptr(), "\r\n")) { - break; - } + if (!reader.getline()) { return false; } - out += chunk; + auto chunk_len = std::stoi(reader.ptr(), 0, 16); - if (!reader.getline()) { - return false; - } - - chunk_len = std::stoi(reader.ptr(), 0, 16); + while (chunk_len > 0) { + if (!read_content_with_length(strm, chunk_len, nullptr, out)) { + return false; } - if (chunk_len == 0) { - // Reader terminator after chunks - if (!reader.getline() || strcmp(reader.ptr(), "\r\n")) - return false; - } + if (!reader.getline()) { return false; } - return true; -} + if (strcmp(reader.ptr(), "\r\n")) { break; } -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 (!reader.getline()) { return false; } - if (len) { - return read_content_with_length(strm, x.body, len, progress); - } else { - const auto& encoding = get_header_value(x.headers, "Transfer-Encoding", ""); + chunk_len = std::stoi(reader.ptr(), 0, 16); + } - if (!strcasecmp(encoding, "chunked")) { - return read_content_chunked(strm, x.body); - } else { - return read_content_without_length(strm, x.body); - } - } + if (chunk_len == 0) { + // Reader terminator after chunks + if (!reader.getline() || strcmp(reader.ptr(), "\r\n")) return false; + } - return true; + return true; +} + +inline bool is_chunked_transfer_encoding(const Headers &headers) { + return !strcasecmp(get_header_value(headers, "Transfer-Encoding", 0, ""), + "chunked"); } 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; - } - } +bool read_content(Stream &strm, T &x, size_t payload_max_length, int &status, + Progress progress, ContentReceiverCore receiver) { - return result; -} + ContentReceiverCore out = [&](const char *buf, size_t n) { + return receiver(buf, n); + }; -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; - } +#ifdef CPPHTTPLIB_ZLIB_SUPPORT + detail::decompressor decompressor; + + if (!decompressor.is_valid()) { + status = 500; return false; -} + } + + if (x.get_header_value("Content-Encoding") == "gzip") { + 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 -inline bool from_hex_to_i(const std::string& s, size_t i, size_t cnt, int& val) -{ - if (i >= s.size()) { - return false; - } + auto ret = true; + auto exceed_payload_max_length = 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; - } + 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); } - return true; + } + + if (!ret) { status = exceed_payload_max_length ? 413 : 400; } + + 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] = (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; - } +template <typename T> +inline int write_headers(Stream &strm, const T &info, const Headers &headers) { + auto write_len = 0; + for (const auto &x : info.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; + } + 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 ssize_t write_content(Stream &strm, ContentProvider content_provider, + size_t offset, size_t length) { + size_t begin_offset = offset; + size_t end_offset = offset + length; + while (offset < end_offset) { + ssize_t written_length = 0; + content_provider( + offset, end_offset - offset, + [&](const char *d, size_t l) { + offset += l; + written_length = strm.write(d, l); + }, + [&](void) { written_length = -1; }); + if (written_length < 0) { return written_length; } + } + return static_cast<ssize_t>(offset - begin_offset); +} + +inline ssize_t write_content_chunked(Stream &strm, + ContentProvider content_provider) { + size_t offset = 0; + auto data_available = true; + ssize_t total_written_length = 0; + while (data_available) { + ssize_t written_length = 0; + content_provider( + offset, 0, + [&](const char *d, size_t l) { + 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"; + written_length = strm.write(chunk); + }, + [&](void) { + data_available = false; + written_length = strm.write("0\r\n\r\n"); + }); - // NOTREACHED - return 0; + if (written_length < 0) { return written_length; } + total_written_length += written_length; + } + return total_written_length; } -inline std::string decode_url(const std::string& s) -{ - std::string result; - - for (size_t i = 0; i < s.size(); i++) { - if (s[i] == '%' && i + 1 < s.size()) { - if (s[i + 1] == 'u') { - int val = 0; - if (from_hex_to_i(s, i + 2, 4, val)) { - // 4 digits Unicode codes - char buff[4]; - size_t len = to_utf8(val, buff); - if (len > 0) { - result.append(buff, len); - } - i += 5; // 'u0000' - } else { - result += s[i]; - } - } else { - int val = 0; - if (from_hex_to_i(s, i + 1, 2, val)) { - // 2 digits hex codes - result += val; - i += 2; // '00' - } else { - result += s[i]; - } - } - } else if (s[i] == '+') { - result += ' '; +template <typename T> +inline bool redirect(T &cli, const Request &req, Response &res, + const std::string &path) { + Request new_req; + new_req.method = req.method; + new_req.path = path; + new_req.headers = req.headers; + new_req.body = req.body; + new_req.redirect_count = req.redirect_count - 1; + new_req.response_handler = req.response_handler; + new_req.content_receiver = req.content_receiver; + new_req.progress = req.progress; + + 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 (auto 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; + case ';': result += "%3B"; break; + default: + auto c = static_cast<uint8_t>(s[i]); + if (c >= 0x80) { + result += '%'; + char hex[4]; + size_t len = snprintf(hex, sizeof(hex) - 1, "%02X", c); + assert(len == 2); + result.append(hex, len); + } else { + result += s[i]; + } + break; + } + } + + return result; +} + +inline std::string decode_url(const std::string &s) { + std::string result; + + for (size_t i = 0; i < s.size(); i++) { + if (s[i] == '%' && i + 1 < s.size()) { + if (s[i + 1] == 'u') { + int val = 0; + if (from_hex_to_i(s, i + 2, 4, val)) { + // 4 digits Unicode codes + char buff[4]; + size_t len = to_utf8(val, buff); + if (len > 0) { result.append(buff, len); } + i += 5; // 'u0000' } else { - result += s[i]; + 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 (s[i] == '+') { + result += ' '; + } else { + result += s[i]; } + } - return result; + 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 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 *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; - } +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; + 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"; +inline bool parse_multipart_formdata(const std::string &boundary, + const std::string &body, + MultipartFiles &files) { + static std::string dash = "--"; + static std::string crlf = "\r\n"; - static std::regex re_content_type( - "Content-Type: (.*?)", std::regex_constants::icase); + static std::regex re_content_type("Content-Type: (.*?)", + std::regex_constants::icase); - static std::regex re_content_disposition( - "Content-Disposition: form-data; name=\"(.*?)\"(?:; filename=\"(.*?)\")?", - std::regex_constants::icase); + static std::regex re_content_disposition( + "Content-Disposition: form-data; name=\"(.*?)\"(?:; filename=\"(.*?)\")?", + std::regex_constants::icase); - auto dash_boundary = dash + boundary; + auto dash_boundary = dash + boundary; - auto pos = body.find(dash_boundary); - if (pos != 0) { - return false; - } + auto pos = body.find(dash_boundary); + if (pos != 0) { return false; } - pos += dash_boundary.size(); + pos += dash_boundary.size(); - auto next_pos = body.find(crlf, pos); - if (next_pos == std::string::npos) { - return false; - } + auto next_pos = body.find(crlf, pos); + if (next_pos == std::string::npos) { return false; } - pos = next_pos + crlf.size(); + pos = next_pos + crlf.size(); - while (pos < body.size()) { - next_pos = body.find(crlf, pos); - if (next_pos == std::string::npos) { - return false; - } + while (pos < body.size()) { + next_pos = body.find(crlf, pos); + if (next_pos == std::string::npos) { return false; } - std::string name; - MultipartFile file; + std::string name; + MultipartFile file; - auto header = body.substr(pos, (next_pos - pos)); + 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]; - } + 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(); + pos = next_pos + crlf.size(); - next_pos = body.find(crlf, pos); - if (next_pos == std::string::npos) { - return false; - } + next_pos = body.find(crlf, pos); + if (next_pos == std::string::npos) { return false; } - header = body.substr(pos, (next_pos - pos)); - } + header = body.substr(pos, (next_pos - pos)); + } - pos = next_pos + crlf.size(); + pos = next_pos + crlf.size(); - next_pos = body.find(crlf + dash_boundary, pos); + next_pos = body.find(crlf + dash_boundary, pos); - if (next_pos == std::string::npos) { - return false; - } + if (next_pos == std::string::npos) { return false; } - file.offset = pos; - file.length = next_pos - pos; + file.offset = pos; + file.length = next_pos - pos; - pos = next_pos + crlf.size() + dash_boundary.size(); + pos = next_pos + crlf.size() + dash_boundary.size(); - next_pos = body.find(crlf, pos); - if (next_pos == std::string::npos) { - return false; - } + next_pos = body.find(crlf, pos); + if (next_pos == std::string::npos) { return false; } - files.emplace(name, file); + files.emplace(name, file); - pos = next_pos + crlf.size(); - } + pos = next_pos + crlf.size(); + } - return true; + 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++; +inline bool parse_range_header(const std::string &s, Ranges &ranges) { + try { + static auto re = std::regex(R"(bytes=(\d*-\d*(?:,\s*\d*-\d*)*))"); + std::smatch m; + if (std::regex_match(s, m, re)) { + auto pos = m.position(1); + auto len = m.length(1); + detail::split(&s[pos], &s[pos + len], ',', + [&](const char *b, const char *e) { + static auto re = std::regex(R"(\s*(\d*)-(\d*))"); + std::cmatch m; + if (std::regex_match(b, e, m, re)) { + ssize_t first = -1; + if (!m.str(1).empty()) { + first = static_cast<ssize_t>(std::stoll(m.str(1))); + } + + ssize_t last = -1; + if (!m.str(2).empty()) { + last = static_cast<ssize_t>(std::stoll(m.str(2))); + } + + if (first != -1 && last != -1 && first > last) { + throw std::runtime_error("invalid range error"); + } + ranges.emplace_back(std::make_pair(first, last)); + } + }); + return true; } - return out; + return false; + } catch (...) { return false; } +} + +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 void make_range_header_core(std::string&) {} +inline std::string make_multipart_data_boundary() { + static const char data[] = + "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"; -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) + "-"; + 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; } -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...); +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); + } + + if (r.first == -1) { + r.first = content_length - r.second; + r.second = content_length - 1; + } + + if (r.second == -1) { r.second = content_length - 1; } + + return std::make_pair(r.first, r.second - r.first + 1); } -#ifdef CPPHTTPLIB_ZLIB_SUPPORT -inline bool can_compress(const std::string& content_type) { - return !content_type.find("text/") || - content_type == "image/svg+xml" || - content_type == "application/javascript" || - content_type == "application/json" || - content_type == "application/xml" || - content_type == "application/xhtml+xml"; -} - -inline void compress(std::string& content) -{ - z_stream strm; - strm.zalloc = Z_NULL; - strm.zfree = Z_NULL; - strm.opaque = Z_NULL; +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; +} - auto ret = deflateInit2(&strm, Z_DEFAULT_COMPRESSION, Z_DEFLATED, 31, 8, Z_DEFAULT_STRATEGY); - if (ret != Z_OK) { - return; +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"); } - strm.avail_in = content.size(); - strm.next_in = (Bytef *)content.data(); + auto offsets = detail::get_range_offset_and_length(req, res.body.size(), i); + auto offset = offsets.first; + auto length = offsets.second; - std::string compressed; + 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"); + } - 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); + ctoken("--"); + stoken(boundary); + ctoken("--\r\n"); + + return true; +} - content.swap(compressed); +inline std::string make_multipart_ranges_data(const Request &req, Response &res, + const std::string &boundary, + const std::string &content_type) { + std::string data; - deflateEnd(&strm); + 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 void decompress(std::string& content) -{ - z_stream strm; - strm.zalloc = Z_NULL; - strm.zfree = Z_NULL; - strm.opaque = Z_NULL; +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; - // 15 is the value of wbits, which should be at the maximum possible value to ensure - // that any gzip stream can be decoded. The offset of 16 specifies that the stream - // to decompress will be formatted with a gzip wrapper. - auto ret = inflateInit2(&strm, 16 + 15); - if (ret != Z_OK) { - return; - } + 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; + }); - strm.avail_in = content.size(); - strm.next_in = (Bytef *)content.data(); + return data_length; +} - std::string decompressed; +inline bool write_multipart_ranges_data(Stream &strm, const Request &req, + Response &res, + const std::string &boundary, + const std::string &content_type) { + 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 detail::write_content(strm, res.content_provider, offset, + length) >= 0; + }); +} - const auto bufsiz = 16384; - char buff[bufsiz]; - do { - strm.avail_out = bufsiz; - strm.next_out = (Bytef *)buff; - inflate(&strm, Z_NO_FLUSH); - decompressed.append(buff, bufsiz - strm.avail_out); - } while (strm.avail_out == 0); +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]; - content.swap(decompressed); + if (r.second == -1) { r.second = res.content_provider_resource_length - 1; } - inflateEnd(&strm); + return std::make_pair(r.first, r.second - r.first + 1); } -#endif #ifdef _WIN32 class WSInit { public: - WSInit() { - WSADATA wsaData; - WSAStartup(0x0002, &wsaData); - } + WSInit() { + WSADATA wsaData; + WSAStartup(0x0002, &wsaData); + } - ~WSInit() { - WSACleanup(); - } + ~WSInit() { WSACleanup(); } }; static WSInit wsinit_; @@ -1275,876 +2010,1273 @@ static WSInit wsinit_; } // 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); +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) { + auto field = "Basic " + detail::base64_encode(username + ":" + password); + return std::make_pair("Authorization", field); } // Request implementation -inline bool Request::has_header(const char* key) const -{ - return headers.find(key) != headers.end(); +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) const -{ - return detail::get_header_value(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 void Request::set_header(const char* key, const char* val) -{ - headers.emplace(key, val); +inline size_t Request::get_header_value_count(const char *key) const { + auto r = headers.equal_range(key); + return std::distance(r.first, r.second); } -inline bool Request::has_param(const char* key) const -{ - return params.find(key) != params.end(); +inline void Request::set_header(const char *key, const char *val) { + headers.emplace(key, val); } -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 void Request::set_header(const char *key, const std::string &val) { + headers.emplace(key, val); } -inline bool Request::has_file(const char* key) const -{ - return files.find(key) != files.end(); +inline bool Request::has_param(const char *key) const { + return params.find(key) != params.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(); +inline std::string Request::get_param_value(const char *key, size_t id) const { + auto it = params.find(key); + std::advance(it, id); + if (it != params.end()) { 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 std::distance(r.first, r.second); +} + +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 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 std::distance(r.first, r.second); } -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_header(const char* key, const char* val) -{ - headers.emplace(key, val); +inline void Response::set_header(const char *key, const std::string &val) { + headers.emplace(key, val); } -inline void Response::set_redirect(const char* url) -{ - set_header("Location", url); - status = 302; +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 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); +inline void Response::set_content(const std::string &s, + const char *content_type) { + body = s; + set_header("Content-Type", content_type); +} + +inline void Response::set_content_provider( + size_t length, + std::function<void(size_t offset, size_t length, DataSink sink)> provider, + std::function<void()> resource_releaser) { + assert(length > 0); + content_provider_resource_length = length; + content_provider = [provider](size_t offset, size_t length, DataSink sink, + Done) { provider(offset, length, sink); }; + content_provider_resource_releaser = resource_releaser; +} + +inline void Response::set_chunked_content_provider( + std::function<void(size_t offset, DataSink sink, Done done)> provider, + std::function<void()> resource_releaser) { + content_provider_resource_length = 0; + content_provider = [provider](size_t offset, size_t, DataSink sink, + Done done) { provider(offset, sink, done); }; + content_provider_resource_releaser = resource_releaser; } // Rstream implementation -template <typename ...Args> -inline void Stream::write_format(const char* fmt, const Args& ...args) -{ - const auto bufsiz = 2048; - char buf[bufsiz]; +template <typename... Args> +inline int 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...); + auto n = _snprintf_s(buf, bufsiz, bufsiz - 1, fmt, args...); #else - auto n = snprintf(buf, bufsiz - 1, fmt, args...); + auto n = snprintf(buf, bufsiz - 1, fmt, args...); #endif - if (n > 0) { - if (n >= bufsiz - 1) { - std::vector<char> glowable_buf(bufsiz); + if (n <= 0) { return n; } + + 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); + 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...); + 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...); + n = snprintf(&glowable_buf[0], glowable_buf.size() - 1, fmt, args...); #endif - } - write(&glowable_buf[0], n); - } else { - write(buf, n); - } } + return write(&glowable_buf[0], n); + } else { + return write(buf, n); + } } // Socket stream implementation -inline SocketStream::SocketStream(socket_t sock): sock_(sock) -{ +inline SocketStream::SocketStream(socket_t sock) : sock_(sock) {} + +inline SocketStream::~SocketStream() {} + +inline int SocketStream::read(char *ptr, size_t size) { + if (detail::select_read(sock_, CPPHTTPLIB_READ_TIMEOUT_SECOND, + CPPHTTPLIB_READ_TIMEOUT_USECOND) > 0) { + return recv(sock_, ptr, static_cast<int>(size), 0); + } + return -1; +} + +inline int SocketStream::write(const char *ptr, size_t size) { + return send(sock_, ptr, static_cast<int>(size), 0); } -inline SocketStream::~SocketStream() -{ +inline int SocketStream::write(const char *ptr) { + return write(ptr, strlen(ptr)); } -inline int SocketStream::read(char* ptr, size_t size) -{ - return recv(sock_, ptr, size, 0); +inline int SocketStream::write(const std::string &s) { + return write(s.data(), s.size()); } -inline int SocketStream::write(const char* ptr, size_t size) -{ - return send(sock_, ptr, size, 0); +inline std::string SocketStream::get_remote_addr() const { + return detail::get_remote_addr(sock_); } -inline int SocketStream::write(const char* ptr) -{ - return write(ptr, strlen(ptr)); +// Buffer stream implementation +inline int BufferStream::read(char *ptr, size_t size) { +#if defined(_MSC_VER) && _MSC_VER < 1900 + return static_cast<int>(buffer._Copy_s(ptr, size, size)); +#else + return static_cast<int>(buffer.copy(ptr, size)); +#endif } -inline std::string SocketStream::get_remote_addr() { - return detail::get_remote_addr(sock_); +inline int BufferStream::write(const char *ptr, size_t size) { + buffer.append(ptr, size); + return static_cast<int>(size); } +inline int BufferStream::write(const char *ptr) { + return write(ptr, strlen(ptr)); +} + +inline int BufferStream::write(const std::string &s) { + return write(s.data(), s.size()); +} + +inline std::string BufferStream::get_remote_addr() const { return ""; } + +inline const std::string &BufferStream::get_buffer() const { return buffer; } + // HTTP server implementation inline Server::Server() - : keep_alive_max_count_(5) - , is_running_(false) - , svr_sock_(INVALID_SOCKET) - , running_threads_(0) -{ + : keep_alive_max_count_(CPPHTTPLIB_KEEPALIVE_MAX_COUNT), + payload_max_length_(CPPHTTPLIB_PAYLOAD_MAX_LENGTH), is_running_(false), + svr_sock_(INVALID_SOCKET) { #ifndef _WIN32 - signal(SIGPIPE, SIG_IGN); + signal(SIGPIPE, SIG_IGN); #endif + new_task_queue = [] { +#if CPPHTTPLIB_THREAD_POOL_COUNT > 0 + return new ThreadPool(CPPHTTPLIB_THREAD_POOL_COUNT); +#else + return new Threads(); +#endif + }; } -inline Server::~Server() -{ -} +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::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, Handler handler) { + post_handlers_.push_back(std::make_pair(std::regex(pattern), handler)); + return *this; } -inline Server& Server::Put(const char* pattern, Handler handler) -{ - put_handlers_.push_back(std::make_pair(std::regex(pattern), handler)); - return *this; +inline Server &Server::Put(const char *pattern, Handler handler) { + put_handlers_.push_back(std::make_pair(std::regex(pattern), handler)); + return *this; } -inline Server& Server::Delete(const char* pattern, Handler handler) -{ - delete_handlers_.push_back(std::make_pair(std::regex(pattern), handler)); - return *this; +inline Server &Server::Patch(const char *pattern, Handler handler) { + patch_handlers_.push_back(std::make_pair(std::regex(pattern), handler)); + return *this; } -inline Server& Server::Options(const char* pattern, Handler handler) -{ - options_handlers_.push_back(std::make_pair(std::regex(pattern), handler)); - return *this; +inline Server &Server::Delete(const char *pattern, Handler handler) { + delete_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 Server &Server::Options(const char *pattern, Handler handler) { + options_handlers_.push_back(std::make_pair(std::regex(pattern), handler)); + return *this; } -inline void Server::set_error_handler(Handler handler) -{ - error_handler_ = handler; +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_logger(Logger logger) -{ - logger_ = logger; +inline void Server::set_file_request_handler(Handler handler) { + file_request_handler_ = handler; } -inline void Server::set_keep_alive_max_count(size_t count) -{ - keep_alive_max_count_ = count; +inline void Server::set_error_handler(Handler handler) { + error_handler_ = handler; } -inline int Server::bind_to_any_port(const char* host, int socket_flags) -{ - return bind_internal(host, 0, socket_flags); +inline void Server::set_logger(Logger logger) { logger_ = logger; } + +inline void Server::set_keep_alive_max_count(size_t count) { + keep_alive_max_count_ = count; } -inline bool Server::listen_after_bind() { - return listen_internal(); +inline void Server::set_payload_max_length(size_t length) { + payload_max_length_ = length; } -inline bool Server::listen(const char* host, int port, int socket_flags) -{ - if (bind_internal(host, port, socket_flags) < 0) - return false; - return listen_internal(); +inline int Server::bind_to_any_port(const char *host, int socket_flags) { + return bind_internal(host, 0, socket_flags); } -inline bool Server::is_running() const -{ - return is_running_; +inline bool Server::listen_after_bind() { return listen_internal(); } + +inline bool Server::listen(const char *host, int port, int socket_flags) { + if (bind_internal(host, port, socket_flags) < 0) return false; + return listen_internal(); } -inline void Server::stop() -{ - if (is_running_) { - assert(svr_sock_ != INVALID_SOCKET); - detail::shutdown_socket(svr_sock_); - detail::close_socket(svr_sock_); - svr_sock_ = INVALID_SOCKET; - } +inline bool Server::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) -{ - static std::regex re("(GET|HEAD|POST|PUT|DELETE|OPTIONS) (([^?]+)(?:\\?(.+?))?) (HTTP/1\\.[01])\r\n"); +inline bool Server::parse_request_line(const char *s, Request &req) { + 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[4]); - req.method = std::string(m[1]); - req.target = std::string(m[2]); - req.path = detail::decode_url(m[3]); - - // Parse query text - auto len = std::distance(m[4].first, m[4].second); - if (len > 0) { - detail::parse_query_text(m[4], req.params); - } + 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]); - return true; - } + // 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 false; -} + return true; + } -inline void Server::write_response(Stream& strm, bool last_connection, const Request& req, Response& res) -{ - assert(res.status != -1); + return false; +} - if (400 <= res.status && error_handler_) { - error_handler_(req, res); - } +inline bool Server::write_response(Stream &strm, bool last_connection, + const Request &req, Response &res) { + assert(res.status != -1); - // Response line - strm.write_format("HTTP/1.1 %d %s\r\n", - res.status, - detail::status_message(res.status)); + if (400 <= res.status && error_handler_) { error_handler_(req, res); } - // Headers - if (last_connection || - req.version == "HTTP/1.0" || - req.get_header_value("Connection") == "close") { - res.set_header("Connection", "close"); + // Response line + if (!strm.write_format("HTTP/1.1 %d %s\r\n", res.status, + detail::status_message(res.status))) { + return false; + } + + // Headers + if (last_connection || req.get_header_value("Connection") == "close") { + res.set_header("Connection", "close"); + } + + if (!last_connection && req.get_header_value("Connection") == "Keep-Alive") { + res.set_header("Connection", "Keep-Alive"); + } + + if (!res.has_header("Content-Type")) { + res.set_header("Content-Type", "text/plain"); + } + + if (!res.has_header("Accept-Ranges")) { + 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_provider_resource_length > 0) { + size_t length = 0; + if (req.ranges.empty()) { + length = res.content_provider_resource_length; + } else if (req.ranges.size() == 1) { + auto offsets = detail::get_range_offset_and_length( + req, res.content_provider_resource_length, 0); + auto offset = offsets.first; + length = offsets.second; + auto content_range = detail::make_content_range_header_field( + offset, length, res.content_provider_resource_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); } - if (!res.body.empty()) { #ifdef CPPHTTPLIB_ZLIB_SUPPORT - // TODO: 'Accpet-Encoding' has gzip, not gzip;q=0 - const auto& encodings = req.get_header_value("Accept-Encoding"); - if (encodings.find("gzip") != std::string::npos && - detail::can_compress(res.get_header_value("Content-Type"))) { - detail::compress(res.body); - res.set_header("Content-Encoding", "gzip"); - } + // TODO: 'Accpet-Encoding' has gzip, not gzip;q=0 + const auto &encodings = req.get_header_value("Accept-Encoding"); + if (encodings.find("gzip") != std::string::npos && + detail::can_compress(res.get_header_value("Content-Type"))) { + if (detail::compress(res.body)) { + res.set_header("Content-Encoding", "gzip"); + } + } #endif - if (!res.has_header("Content-Type")) { - res.set_header("Content-Type", "text/plain"); - } + auto length = std::to_string(res.body.size()); + res.set_header("Content-Length", length); + } + + if (!detail::write_headers(strm, res, Headers())) { return false; } - auto length = std::to_string(res.body.size()); - res.set_header("Content-Length", length.c_str()); + // Body + if (req.method != "HEAD") { + if (!res.body.empty()) { + if (!strm.write(res.body)) { return false; } + } else if (res.content_provider) { + if (!write_content_with_provider(strm, req, res, boundary, + content_type)) { + return false; + } } + } - detail::write_headers(strm, res); + // Log + if (logger_) { logger_(req, res); } - // Body - if (!res.body.empty() && req.method != "HEAD") { - strm.write(res.body.c_str(), res.body.size()); - } + return true; +} - // Log - if (logger_) { - logger_(req, res); +inline bool +Server::write_content_with_provider(Stream &strm, const Request &req, + Response &res, const std::string &boundary, + const std::string &content_type) { + if (res.content_provider_resource_length) { + if (req.ranges.empty()) { + if (detail::write_content(strm, res.content_provider, 0, + res.content_provider_resource_length) < 0) { + return false; + } + } else if (req.ranges.size() == 1) { + auto offsets = detail::get_range_offset_and_length( + req, res.content_provider_resource_length, 0); + auto offset = offsets.first; + auto length = offsets.second; + if (detail::write_content(strm, res.content_provider, offset, length) < + 0) { + return false; + } + } else { + if (!detail::write_multipart_ranges_data(strm, req, res, boundary, + content_type)) { + return false; + } + } + } else { + if (detail::write_content_chunked(strm, res.content_provider) < 0) { + return false; } + } + return true; } -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; +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 (!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; - } + 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; + if (file_request_handler_) { file_request_handler_(req, res); } + return true; } + } - return false; + return false; } -inline socket_t Server::create_server_socket(const char* host, int port, int socket_flags) const -{ - return detail::create_socket(host, port, - [](socket_t sock, struct addrinfo& ai) -> bool { - if (::bind(sock, ai.ai_addr, ai.ai_addrlen)) { - return false; - } - if (::listen(sock, 5)) { // Listen through 5 channels - return false; - } - return true; - }, socket_flags); -} - -inline int Server::bind_internal(const char* host, int port, int socket_flags) -{ - if (!is_valid()) { - return -1; - } - - svr_sock_ = create_server_socket(host, port, socket_flags); - if (svr_sock_ == INVALID_SOCKET) { - return -1; - } - - if (port == 0) { - struct sockaddr_storage address; - socklen_t len = sizeof(address); - if (getsockname(svr_sock_, reinterpret_cast<struct sockaddr *>(&address), &len) == -1) { - return -1; +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, static_cast<int>(ai.ai_addrlen))) { + return false; } - if (address.ss_family == AF_INET) { - return ntohs(reinterpret_cast<struct sockaddr_in*>(&address)->sin_port); - } else if (address.ss_family == AF_INET6) { - return ntohs(reinterpret_cast<struct sockaddr_in6*>(&address)->sin6_port); - } else { - return -1; + if (::listen(sock, 5)) { // Listen through 5 channels + return false; } + return true; + }, + socket_flags); +} + +inline int Server::bind_internal(const char *host, int port, int socket_flags) { + if (!is_valid()) { return -1; } + + svr_sock_ = create_server_socket(host, port, socket_flags); + if (svr_sock_ == INVALID_SOCKET) { return -1; } + + if (port == 0) { + struct sockaddr_storage address; + socklen_t len = sizeof(address); + if (getsockname(svr_sock_, reinterpret_cast<struct sockaddr *>(&address), + &len) == -1) { + return -1; + } + if (address.ss_family == AF_INET) { + return ntohs(reinterpret_cast<struct sockaddr_in *>(&address)->sin_port); + } else if (address.ss_family == AF_INET6) { + return ntohs( + reinterpret_cast<struct sockaddr_in6 *>(&address)->sin6_port); } else { - return port; + return -1; } + } else { + return port; + } } -inline bool Server::listen_internal() -{ - auto ret = true; +inline bool Server::listen_internal() { + auto ret = true; + is_running_ = true; - is_running_ = true; + { + std::unique_ptr<TaskQueue> task_queue(new_task_queue()); for (;;) { - auto val = detail::select_read(svr_sock_, 0, 100000); + if (svr_sock_ == INVALID_SOCKET) { + // The server socket was closed by 'stop' method. + break; + } - if (val == 0) { // Timeout - if (svr_sock_ == INVALID_SOCKET) { - // The server socket was closed by 'stop' method. - break; - } - continue; - } + auto val = detail::select_read(svr_sock_, 0, 100000); - socket_t sock = accept(svr_sock_, NULL, NULL); + if (val == 0) { // Timeout + continue; + } - if (sock == INVALID_SOCKET) { - if (svr_sock_ != INVALID_SOCKET) { - detail::close_socket(svr_sock_); - ret = false; - } else { - ; // The server socket was closed by user. - } - break; + 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; + } - // TODO: Use thread pool... - std::thread([=]() { - { - std::lock_guard<std::mutex> guard(running_threads_mutex_); - running_threads_++; - } + task_queue->enqueue([=]() { process_and_close_socket(sock); }); + } - read_and_close_socket(sock); + task_queue->shutdown(); + } - { - std::lock_guard<std::mutex> guard(running_threads_mutex_); - running_threads_--; - } - }).detach(); + is_running_ = false; + return ret; +} + +inline bool Server::routing(Request &req, Response &res) { + if (req.method == "GET" && handle_file_request(req, res)) { return true; } + + if (req.method == "GET" || req.method == "HEAD") { + return dispatch_request(req, res, get_handlers_); + } else if (req.method == "POST") { + return dispatch_request(req, res, post_handlers_); + } else if (req.method == "PUT") { + return dispatch_request(req, res, put_handlers_); + } else if (req.method == "DELETE") { + return dispatch_request(req, res, delete_handlers_); + } else if (req.method == "OPTIONS") { + return dispatch_request(req, res, options_handlers_); + } 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) { + for (const auto &x : handlers) { + const auto &pattern = x.first; + const auto &handler = x.second; + + if (std::regex_match(req.path, req.matches, pattern)) { + handler(req, res); + return true; + } + } + return false; +} + +inline bool +Server::process_request(Stream &strm, bool last_connection, + bool &connection_close, + std::function<void(Request &)> setup_request) { + const auto bufsiz = 2048; + char buf[bufsiz]; + + detail::stream_line_reader reader(strm, buf, bufsiz); + + // Connection has been closed on client + if (!reader.getline()) { return false; } + + Request req; + Response res; + + res.version = "HTTP/1.1"; + + // Check if the request URI doesn't exceed the limit + if (reader.size() > CPPHTTPLIB_REQUEST_URI_MAX_LENGTH) { + Headers dummy; + detail::read_headers(strm, dummy); + res.status = 414; + return write_response(strm, last_connection, req, res); + } + + // Request line and headers + if (!parse_request_line(reader.ptr(), req) || + !detail::read_headers(strm, req.headers)) { + res.status = 400; + return write_response(strm, last_connection, req, res); + } + + if (req.get_header_value("Connection") == "close") { + connection_close = true; + } + + if (req.version == "HTTP/1.0" && + req.get_header_value("Connection") != "Keep-Alive") { + connection_close = true; + } + + req.set_header("REMOTE_ADDR", strm.get_remote_addr()); + + // Body + if (req.method == "POST" || req.method == "PUT" || req.method == "PATCH" || req.method == "PRI") { + if (!detail::read_content(strm, req, payload_max_length_, res.status, + Progress(), [&](const char *buf, size_t n) { + if (req.body.size() + n > req.body.max_size()) { + return false; + } + req.body.append(buf, n); + return true; + })) { + return write_response(strm, last_connection, req, res); } - // TODO: Use thread pool... - for (;;) { - std::this_thread::sleep_for(std::chrono::milliseconds(10)); - std::lock_guard<std::mutex> guard(running_threads_mutex_); - if (!running_threads_) { - break; - } + 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; + return write_response(strm, last_connection, req, res); + } + } + } + + 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 } + } - is_running_ = false; + if (setup_request) { setup_request(req); } - return ret; + if (routing(req, res)) { + if (res.status == -1) { res.status = req.ranges.empty() ? 200 : 206; } + } else { + if (res.status == -1) { res.status = 404; } + } + + return write_response(strm, last_connection, req, res); } -inline bool Server::routing(Request& req, Response& res) -{ - if (req.method == "GET" && handle_file_request(req, res)) { - return true; - } +inline bool Server::is_valid() const { return true; } - if (req.method == "GET" || req.method == "HEAD") { - return dispatch_request(req, res, get_handlers_); - } else if (req.method == "POST") { - return dispatch_request(req, res, post_handlers_); - } else if (req.method == "PUT") { - return dispatch_request(req, res, put_handlers_); - } else if (req.method == "DELETE") { - return dispatch_request(req, res, delete_handlers_); - } else if (req.method == "OPTIONS") { - return dispatch_request(req, res, options_handlers_); - } - return false; +inline bool Server::process_and_close_socket(socket_t sock) { + return detail::process_and_close_socket( + false, sock, keep_alive_max_count_, + [this](Stream &strm, bool last_connection, bool &connection_close) { + return process_request(strm, last_connection, connection_close, + nullptr); + }); } -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; +// HTTP client implementation +inline Client::Client(const char *host, int port, time_t timeout_sec) + : host_(host), port_(port), timeout_sec_(timeout_sec), + host_and_port_(host_ + ":" + std::to_string(port_)), + keep_alive_max_count_(CPPHTTPLIB_KEEPALIVE_MAX_COUNT), + follow_location_(false) {} + +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, static_cast<int>(ai.ai_addrlen)); + if (ret < 0) { + if (detail::is_connection_error() || + !detail::wait_until_socket_is_ready(sock, timeout_sec_, 0)) { + detail::close_socket(sock); + return false; + } } - } - return false; -} -inline bool Server::process_request(Stream& strm, bool last_connection, bool& connection_close) -{ - const auto bufsiz = 2048; - char buf[bufsiz]; + detail::set_nonblocking(sock, false); + return true; + }); +} - detail::stream_line_reader reader(strm, buf, bufsiz); +inline bool Client::read_response_line(Stream &strm, Response &res) { + const auto bufsiz = 2048; + char buf[bufsiz]; - // Connection has been closed on client - if (!reader.getline()) { - return false; - } + detail::stream_line_reader reader(strm, buf, bufsiz); - Request req; - Response res; + if (!reader.getline()) { return false; } - res.version = "HTTP/1.1"; + const static std::regex re("(HTTP/1\\.[01]) (\\d+?) .*\r\n"); - // 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; - } + std::cmatch m; + if (std::regex_match(reader.ptr(), m, re)) { + res.version = std::string(m[1]); + res.status = std::stoi(std::string(m[2])); + } - auto ret = true; - if (req.get_header_value("Connection") == "close") { - // ret = false; - connection_close = true; - } + return true; +} - req.set_header("REMOTE_ADDR", strm.get_remote_addr().c_str()); +inline bool Client::send(const Request &req, Response &res) { + if (req.path.empty()) { return false; } - // Body - if (req.method == "POST" || req.method == "PUT") { - if (!detail::read_content(strm, req)) { - res.status = 400; - write_response(strm, last_connection, req, res); - return ret; - } + auto sock = create_client_socket(); + if (sock == INVALID_SOCKET) { return false; } - const auto& content_type = req.get_header_value("Content-Type"); + auto ret = process_and_close_socket( + sock, 1, [&](Stream &strm, bool last_connection, bool &connection_close) { + return process_request(strm, req, res, last_connection, + connection_close); + }); - if (req.get_header_value("Content-Encoding") == "gzip") { -#ifdef CPPHTTPLIB_ZLIB_SUPPORT - detail::decompress(req.body); -#else - res.status = 415; - write_response(strm, last_connection, req, res); - return ret; -#endif - } + if (ret && follow_location_ && (300 < res.status && res.status < 400)) { + ret = redirect(req, res); + } - 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; - } - } - } + return ret; +} - if (routing(req, res)) { - if (res.status == -1) { - res.status = 200; - } - } else { - res.status = 404; - } +inline bool Client::send(const std::vector<Request> &requests, + std::vector<Response> &responses) { + size_t i = 0; + while (i < requests.size()) { + auto sock = create_client_socket(); + if (sock == INVALID_SOCKET) { return false; } - write_response(strm, last_connection, req, res); - return ret; -} + if (!process_and_close_socket( + sock, requests.size() - i, + [&](Stream &strm, bool last_connection, bool &connection_close) -> bool { + auto &req = requests[i]; + auto res = Response(); + i++; -inline bool Server::is_valid() const -{ - return true; -} + if (req.path.empty()) { return false; } + auto ret = process_request(strm, req, res, last_connection, + connection_close); -inline bool Server::read_and_close_socket(socket_t sock) -{ - return detail::read_and_close_socket( - sock, - keep_alive_max_count_, - [this](Stream& strm, bool last_connection, bool& connection_close) { - return process_request(strm, last_connection, connection_close); - }); -} + if (ret && follow_location_ && + (300 < res.status && res.status < 400)) { + ret = redirect(req, res); + } -// HTTP client implementation -inline Client::Client( - const char* host, int port, size_t timeout_sec) - : host_(host) - , port_(port) - , timeout_sec_(timeout_sec) - , host_and_port_(host_ + ":" + std::to_string(port_)) -{ -} + if (ret) { responses.emplace_back(std::move(res)); } -inline Client::~Client() -{ -} + return ret; + })) { + return false; + } + } -inline bool Client::is_valid() const -{ - return true; + 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); +inline bool Client::redirect(const Request &req, Response &res) { + if (req.redirect_count == 0) { return false; } - auto ret = connect(sock, ai.ai_addr, ai.ai_addrlen); - if (ret < 0) { - if (detail::is_connection_error() || - !detail::wait_until_socket_is_ready(sock, timeout_sec_, 0)) { - detail::close_socket(sock); - return false; - } - } + auto location = res.get_header_value("location"); + if (location.empty()) { return false; } - detail::set_nonblocking(sock, false); - return true; - }); -} + std::regex re( + R"(^(?:([^:/?#]+):)?(?://([^/?#]*))?([^?#]*(?:\?[^#]*)?)(?:#.*)?)"); -inline bool Client::read_response_line(Stream& strm, Response& res) -{ - const auto bufsiz = 2048; - char buf[bufsiz]; + auto scheme = is_ssl() ? "https" : "http"; - detail::stream_line_reader reader(strm, buf, bufsiz); + std::smatch m; + if (regex_match(location, m, re)) { + auto next_scheme = m[1].str(); + auto next_host = m[2].str(); + auto next_path = m[3].str(); + if (next_host.empty()) { next_host = host_; } + if (next_path.empty()) { next_path = "/"; } - if (!reader.getline()) { + if (next_scheme == scheme && next_host == host_) { + return detail::redirect(*this, req, res, next_path); + } else { + if (next_scheme == "https") { +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + SSLClient cli(next_host.c_str()); + cli.follow_location(true); + return detail::redirect(cli, req, res, next_path); +#else return false; +#endif + } else { + Client cli(next_host.c_str()); + cli.follow_location(true); + return detail::redirect(cli, req, res, next_path); + } } + } + return false; +} - const static std::regex re("(HTTP/1\\.[01]) (\\d+?) .+\r\n"); +inline void Client::write_request(Stream &strm, const Request &req, + bool last_connection) { + BufferStream bstrm; - std::cmatch m; - if (std::regex_match(reader.ptr(), m, re)) { - res.version = std::string(m[1]); - res.status = std::stoi(std::string(m[2])); + // Request line + 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 (last_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_); + } } + } - return true; -} + if (!req.has_header("Accept")) { headers.emplace("Accept", "*/*"); } -inline bool Client::send(Request& req, Response& res) -{ - if (req.path.empty()) { - return false; + if (!req.has_header("User-Agent")) { + headers.emplace("User-Agent", "cpp-httplib/0.2"); + } + + if (req.body.empty()) { + if (req.method == "POST" || req.method == "PUT" || req.method == "PATCH") { + headers.emplace("Content-Length", "0"); + } + } else { + if (!req.has_header("Content-Type")) { + headers.emplace("Content-Type", "text/plain"); } - auto sock = create_client_socket(); - if (sock == INVALID_SOCKET) { - return false; + if (!req.has_header("Content-Length")) { + auto length = std::to_string(req.body.size()); + headers.emplace("Content-Length", length); } + } - return read_and_close_socket(sock, req, res); + detail::write_headers(bstrm, req, headers); + + // Body + if (!req.body.empty()) { bstrm.write(req.body); } + + // Flush buffer + auto &data = bstrm.get_buffer(); + strm.write(data.data(), data.size()); } -inline void Client::write_request(Stream& strm, Request& req) -{ - auto path = detail::encode_url(req.path); +inline bool Client::process_request(Stream &strm, const Request &req, + Response &res, bool last_connection, + bool &connection_close) { + // Send request + write_request(strm, req, last_connection); + + // Receive response and headers + if (!read_response_line(strm, res) || + !detail::read_headers(strm, res.headers)) { + return false; + } - // Request line - strm.write_format("%s %s HTTP/1.1\r\n", - req.method.c_str(), - path.c_str()); + if (res.get_header_value("Connection") == "close" || + res.version == "HTTP/1.0") { + connection_close = true; + } - // Headers - req.set_header("Host", host_and_port_.c_str()); + if (req.response_handler) { + if (!req.response_handler(res)) { return false; } + } - if (!req.has_header("Accept")) { - req.set_header("Accept", "*/*"); - } + // Body + if (req.method != "HEAD") { + detail::ContentReceiverCore out = [&](const char *buf, size_t n) { + if (res.body.size() + n > res.body.max_size()) { return false; } + res.body.append(buf, n); + return true; + }; - if (!req.has_header("User-Agent")) { - req.set_header("User-Agent", "cpp-httplib/0.2"); + if (req.content_receiver) { + auto offset = std::make_shared<size_t>(); + auto length = get_header_value_uint64(res.headers, "Content-Length", 0); + auto receiver = req.content_receiver; + out = [offset, length, receiver](const char *buf, size_t n) { + auto ret = receiver(buf, n, *offset, length); + (*offset) += n; + return ret; + }; } - // TODO: Support KeepAlive connection - // if (!req.has_header("Connection")) { - req.set_header("Connection", "close"); - // } + int dummy_status; + if (!detail::read_content(strm, res, std::numeric_limits<size_t>::max(), + dummy_status, req.progress, out)) { + return false; + } + } - if (!req.body.empty()) { - if (!req.has_header("Content-Type")) { - req.set_header("Content-Type", "text/plain"); - } + return true; +} - auto length = std::to_string(req.body.size()); - req.set_header("Content-Length", length.c_str()); - } +inline bool Client::process_and_close_socket( + socket_t sock, size_t request_count, + std::function<bool(Stream &strm, bool last_connection, + bool &connection_close)> + callback) { + request_count = std::min(request_count, keep_alive_max_count_); + return detail::process_and_close_socket(true, sock, request_count, callback); +} - detail::write_headers(strm, req); +inline bool Client::is_ssl() const { return false; } - // 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 std::shared_ptr<Response> Client::Get(const char *path) { + Progress dummy; + return Get(path, Headers(), dummy); } -inline bool Client::process_request(Stream& strm, Request& req, Response& res, bool& connection_close) -{ - // Send request - write_request(strm, req); +inline std::shared_ptr<Response> Client::Get(const char *path, + Progress progress) { + return Get(path, Headers(), progress); +} - // Receive response and headers - if (!read_response_line(strm, res) || !detail::read_headers(strm, res.headers)) { - return false; - } +inline std::shared_ptr<Response> Client::Get(const char *path, + const Headers &headers) { + Progress dummy; + return Get(path, headers, dummy); +} - if (res.get_header_value("Connection") == "close" || res.version == "HTTP/1.0") { - connection_close = true; - } +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; - // Body - if (req.method != "HEAD") { - if (!detail::read_content(strm, res, req.progress)) { - return false; - } + auto res = std::make_shared<Response>(); + return send(req, *res) ? res : nullptr; +} - if (res.get_header_value("Content-Encoding") == "gzip") { -#ifdef CPPHTTPLIB_ZLIB_SUPPORT - detail::decompress(res.body); -#else - return false; -#endif - } - } +inline std::shared_ptr<Response> Client::Get(const char *path, + ContentReceiver content_receiver) { + Progress dummy; + return Get(path, Headers(), nullptr, content_receiver, dummy); +} - return true; +inline std::shared_ptr<Response> Client::Get(const char *path, + ContentReceiver content_receiver, + Progress progress) { + return Get(path, Headers(), nullptr, content_receiver, progress); } -inline bool Client::read_and_close_socket(socket_t sock, Request& req, Response& res) -{ - return detail::read_and_close_socket( - sock, - 0, - [&](Stream& strm, bool /*last_connection*/, bool& connection_close) { - return process_request(strm, req, res, connection_close); - }); +inline std::shared_ptr<Response> Client::Get(const char *path, + const Headers &headers, + ContentReceiver content_receiver) { + Progress dummy; + return Get(path, headers, nullptr, content_receiver, dummy); } -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, + ContentReceiver content_receiver, + Progress progress) { + return Get(path, headers, nullptr, content_receiver, 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; +inline std::shared_ptr<Response> Client::Get(const char *path, + const Headers &headers, + ResponseHandler response_handler, + ContentReceiver content_receiver) { + Progress dummy; + return Get(path, headers, response_handler, content_receiver, dummy); +} - auto res = std::make_shared<Response>(); +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 = response_handler; + req.content_receiver = content_receiver; + req.progress = progress; - return send(req, *res) ? res : nullptr; + 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) { + 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; +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>(); + auto res = std::make_shared<Response>(); - return send(req, *res) ? res : nullptr; + 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 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; +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; + req.headers.emplace("Content-Type", content_type); + req.body = body; - auto res = std::make_shared<Response>(); + auto res = std::make_shared<Response>(); - return send(req, *res) ? res : nullptr; + 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 Params ¶ms) { + 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; +inline std::shared_ptr<Response> +Client::Post(const char *path, const Headers &headers, 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 += detail::encode_url(it->second); + } + + 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) { + Request req; + req.method = "POST"; + req.headers = headers; + req.path = path; + + auto boundary = detail::make_multipart_data_boundary(); + + req.headers.emplace("Content-Type", + "multipart/form-data; boundary=" + boundary); + + for (const auto &item : items) { + req.body += "--" + boundary + "\r\n"; + req.body += "Content-Disposition: form-data; name=\"" + item.name + "\""; + if (!item.filename.empty()) { + req.body += "; filename=\"" + item.filename + "\""; + } + req.body += "\r\n"; + if (!item.content_type.empty()) { + req.body += "Content-Type: " + item.content_type + "\r\n"; } + req.body += "\r\n"; + req.body += item.content + "\r\n"; + } + + req.body += "--" + boundary + "--\r\n"; + + auto res = std::make_shared<Response>(); + + return send(req, *res) ? res : 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) { + Request req; + req.method = "PUT"; + req.headers = headers; + req.path = path; + + req.headers.emplace("Content-Type", content_type); + req.body = body; + + auto res = std::make_shared<Response>(); - return Post(path, headers, query, "application/x-www-form-urlencoded"); + return send(req, *res) ? res : 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::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::Put( - const char* path, const Headers& headers, const std::string& body, const char* content_type) -{ - Request req; - req.method = "PUT"; - req.headers = headers; - req.path = path; +inline std::shared_ptr<Response> Client::Patch(const char *path, + const Headers &headers, + const std::string &body, + const char *content_type) { + Request req; + req.method = "PATCH"; + req.headers = headers; + req.path = path; - req.headers.emplace("Content-Type", content_type); - req.body = body; + req.headers.emplace("Content-Type", content_type); + req.body = body; - auto res = std::make_shared<Response>(); + auto res = std::make_shared<Response>(); - return send(req, *res) ? res : nullptr; + return send(req, *res) ? res : nullptr; } -inline std::shared_ptr<Response> Client::Delete(const char* path) -{ - return Delete(path, Headers()); +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 Headers& headers) -{ - Request req; - req.method = "DELETE"; - req.path = path; - req.headers = headers; +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); +} - auto res = std::make_shared<Response>(); +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; - return send(req, *res) ? res : nullptr; + 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) { + 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; +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>(); - auto res = std::make_shared<Response>(); + return send(req, *res) ? res : nullptr; +} - return send(req, *res) ? res : nullptr; +inline void Client::set_keep_alive_max_count(size_t count) { + keep_alive_max_count_ = count; } +inline void Client::follow_location(bool on) { follow_location_ = on; } + /* * SSL Implementation */ @@ -2152,74 +3284,114 @@ inline std::shared_ptr<Response> Client::Options(const char* path, const Headers namespace detail { template <typename U, typename V, typename T> -inline bool read_and_close_socket_ssl( - socket_t sock, size_t keep_alive_max_count, - // TODO: OpenSSL 1.0.2 occasionally crashes... - // The upcoming 1.1.0 is going to be thread safe. - SSL_CTX* ctx, std::mutex& ctx_mutex, - U SSL_connect_or_accept, V setup, - T callback) -{ - SSL* ssl = nullptr; - { - std::lock_guard<std::mutex> guard(ctx_mutex); - - ssl = SSL_new(ctx); - if (!ssl) { - return false; - } - } +inline bool process_and_close_socket_ssl(bool is_client_request, socket_t sock, + size_t keep_alive_max_count, + SSL_CTX *ctx, std::mutex &ctx_mutex, + U SSL_connect_or_accept, V setup, + T callback) { + assert(keep_alive_max_count > 0); + + SSL *ssl = nullptr; + { + std::lock_guard<std::mutex> guard(ctx_mutex); + ssl = SSL_new(ctx); + } + + if (!ssl) { + close_socket(sock); + return false; + } - auto bio = BIO_new_socket(sock, BIO_NOCLOSE); - SSL_set_bio(ssl, bio, bio); + auto bio = BIO_new_socket(static_cast<int>(sock), BIO_NOCLOSE); + SSL_set_bio(ssl, bio, bio); - setup(ssl); + if (!setup(ssl)) { + SSL_shutdown(ssl); + { + std::lock_guard<std::mutex> guard(ctx_mutex); + SSL_free(ssl); + } - SSL_connect_or_accept(ssl); + close_socket(sock); + return false; + } - bool ret = false; + bool ret = false; - if (keep_alive_max_count > 0) { - auto count = keep_alive_max_count; - while (count > 0 && - detail::select_read(sock, - CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND, - CPPHTTPLIB_KEEPALIVE_TIMEOUT_USECOND) > 0) { - SSLSocketStream strm(sock, ssl); - auto last_connection = count == 1; - auto connection_close = false; + if (SSL_connect_or_accept(ssl) == 1) { + if (keep_alive_max_count > 1) { + auto count = keep_alive_max_count; + while (count > 0 && + (is_client_request || + detail::select_read(sock, CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND, + CPPHTTPLIB_KEEPALIVE_TIMEOUT_USECOND) > 0)) { + SSLSocketStream strm(sock, ssl); + auto last_connection = count == 1; + auto connection_close = false; - ret = callback(strm, last_connection, connection_close); - if (!ret || connection_close) { - break; - } + ret = callback(ssl, strm, last_connection, connection_close); + if (!ret || connection_close) { break; } - count--; - } + count--; + } } else { - SSLSocketStream strm(sock, ssl); - auto dummy_connection_close = false; - ret = callback(strm, true, dummy_connection_close); + SSLSocketStream strm(sock, ssl); + auto dummy_connection_close = false; + ret = callback(ssl, strm, true, dummy_connection_close); } + } - SSL_shutdown(ssl); + SSL_shutdown(ssl); + { + std::lock_guard<std::mutex> guard(ctx_mutex); + SSL_free(ssl); + } - { - std::lock_guard<std::mutex> guard(ctx_mutex); - SSL_free(ssl); - } - - close_socket(sock); + close_socket(sock); - return ret; + return ret; } -class SSLInit { +#if OPENSSL_VERSION_NUMBER < 0x10100000L +static std::shared_ptr<std::vector<std::mutex>> openSSL_locks_; + +class SSLThreadLocks { public: - SSLInit() { - SSL_load_error_strings(); - SSL_library_init(); + 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 &locks = *openSSL_locks_; + if (mode & CRYPTO_LOCK) { + locks[type].lock(); + } else { + locks[type].unlock(); } + } +}; + +#endif + +class SSLInit { +public: + SSLInit() { + SSL_load_error_strings(); + SSL_library_init(); + } + + ~SSLInit() { ERR_free_strings(); } + +private: +#if OPENSSL_VERSION_NUMBER < 0x10100000L + SSLThreadLocks thread_init_; +#endif }; static SSLInit sslinit_; @@ -2227,118 +3399,319 @@ static SSLInit sslinit_; } // namespace detail // SSL socket stream implementation -inline SSLSocketStream::SSLSocketStream(socket_t sock, SSL* ssl) - : sock_(sock), ssl_(ssl) -{ -} +inline SSLSocketStream::SSLSocketStream(socket_t sock, SSL *ssl) + : sock_(sock), ssl_(ssl) {} -inline SSLSocketStream::~SSLSocketStream() -{ +inline SSLSocketStream::~SSLSocketStream() {} + +inline int SSLSocketStream::read(char *ptr, size_t size) { + if (SSL_pending(ssl_) > 0 || + detail::select_read(sock_, CPPHTTPLIB_READ_TIMEOUT_SECOND, + CPPHTTPLIB_READ_TIMEOUT_USECOND) > 0) { + return SSL_read(ssl_, ptr, static_cast<int>(size)); + } + return -1; } -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, static_cast<int>(size)); } -inline int SSLSocketStream::write(const char* ptr, size_t size) -{ - return SSL_write(ssl_, ptr, size); +inline int SSLSocketStream::write(const char *ptr) { + return write(ptr, strlen(ptr)); } -inline int SSLSocketStream::write(const char* ptr) -{ - return write(ptr, strlen(ptr)); +inline int SSLSocketStream::write(const std::string &s) { + return write(s.data(), s.size()); } -inline std::string SSLSocketStream::get_remote_addr() { - return detail::get_remote_addr(sock_); +inline std::string SSLSocketStream::get_remote_addr() const { + return detail::get_remote_addr(sock_); } // SSL HTTP server implementation -inline SSLServer::SSLServer(const char* cert_path, const char* private_key_path) -{ - ctx_ = SSL_CTX_new(SSLv23_server_method()); - - if (ctx_) { - SSL_CTX_set_options(ctx_, - SSL_OP_ALL | SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3 | +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); + // 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; - } + 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() { + if (ctx_) { SSL_CTX_free(ctx_); } +} + +inline bool SSLServer::is_valid() const { return ctx_; } + +inline bool SSLServer::process_and_close_socket(socket_t sock) { + return detail::process_and_close_socket_ssl( + false, sock, keep_alive_max_count_, ctx_, ctx_mutex_, SSL_accept, + [](SSL * /*ssl*/) { return true; }, + [this](SSL *ssl, Stream &strm, bool last_connection, + bool &connection_close) { + return process_request(strm, last_connection, connection_close, + [&](Request &req) { req.ssl = ssl; }); + }); } -inline SSLServer::~SSLServer() -{ - if (ctx_) { - SSL_CTX_free(ctx_); +// SSL HTTP client implementation +inline SSLClient::SSLClient(const char *host, int port, time_t timeout_sec, + const char *client_cert_path, + const char *client_key_path) + : Client(host, port, timeout_sec) { + 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 && client_key_path) { + if (SSL_CTX_use_certificate_file(ctx_, client_cert_path, + SSL_FILETYPE_PEM) != 1 || + SSL_CTX_use_PrivateKey_file(ctx_, client_key_path, SSL_FILETYPE_PEM) != + 1) { + SSL_CTX_free(ctx_); + ctx_ = nullptr; } + } } -inline bool SSLServer::is_valid() const -{ - return ctx_; +inline SSLClient::~SSLClient() { + if (ctx_) { SSL_CTX_free(ctx_); } } -inline bool SSLServer::read_and_close_socket(socket_t sock) -{ - return detail::read_and_close_socket_ssl( - sock, - keep_alive_max_count_, - ctx_, ctx_mutex_, - SSL_accept, - [](SSL* /*ssl*/) {}, - [this](Stream& strm, bool last_connection, bool& connection_close) { - return process_request(strm, last_connection, connection_close); - }); +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; } } -// SSL HTTP client implementation -inline SSLClient::SSLClient(const char* host, int port, size_t timeout_sec) - : Client(host, port, timeout_sec) -{ - ctx_ = SSL_CTX_new(SSLv23_client_method()); +inline void SSLClient::enable_server_certificate_verification(bool enabled) { + server_certificate_verification_ = enabled; } -inline SSLClient::~SSLClient() -{ - if (ctx_) { - SSL_CTX_free(ctx_); - } +inline long SSLClient::get_openssl_verify_result() const { + return verify_result_; } -inline bool SSLClient::is_valid() const -{ - return ctx_; +inline SSL_CTX* SSLClient::ssl_context() const noexcept { + return ctx_; } -inline bool SSLClient::read_and_close_socket(socket_t sock, Request& req, Response& res) -{ - return is_valid() && detail::read_and_close_socket_ssl( - sock, 0, - ctx_, ctx_mutex_, - SSL_connect, - [&](SSL* ssl) { - SSL_set_tlsext_host_name(ssl, host_.c_str()); - }, - [&](Stream& strm, bool /*last_connection*/, bool& connection_close) { - return process_request(strm, req, res, connection_close); - }); +inline bool SSLClient::process_and_close_socket( + socket_t sock, size_t request_count, + std::function<bool(Stream &strm, bool last_connection, + bool &connection_close)> + callback) { + + request_count = std::min(request_count, keep_alive_max_count_); + + return is_valid() && + detail::process_and_close_socket_ssl( + true, sock, request_count, ctx_, ctx_mutex_, + [&](SSL *ssl) { + if (ca_cert_file_path_.empty()) { + SSL_CTX_set_verify(ctx_, SSL_VERIFY_NONE, nullptr); + } else { + if (!SSL_CTX_load_verify_locations( + ctx_, ca_cert_file_path_.c_str(), nullptr)) { + return false; + } + SSL_CTX_set_verify(ctx_, SSL_VERIFY_PEER, 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; + }, + [&](SSL * /*ssl*/, Stream &strm, bool last_connection, + bool &connection_close) { + return callback(strm, last_connection, connection_close); + }); +} + +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 -} // namespace httplib + 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 (auto 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, 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 -// vim: et ts=4 sw=4 cin cino={1s ff=unix +} // namespace httplib + +#endif // CPPHTTPLIB_HTTPLIB_H |