// taken from: https://github.com/yhirose/cpp-httplib/blob/v0.10.2/httplib.h // Note: some modifications are made to file // // httplib.hpp // // Copyright (c) 2021 Yuji Hirose. All rights reserved. // MIT License // #ifndef CPPHTTPLIB_HTTPLIB_H #define CPPHTTPLIB_HTTPLIB_H /* * Configuration */ #ifdef CPPHTTPLIB_OPENSSL_SUPPORT #define CPPHTTPLIB_NAMESPACE duckdb_httplib_openssl #else #define CPPHTTPLIB_NAMESPACE duckdb_httplib #endif #ifndef CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND #define CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND 5 #endif #ifndef CPPHTTPLIB_KEEPALIVE_MAX_COUNT #define CPPHTTPLIB_KEEPALIVE_MAX_COUNT 5 #endif #ifndef CPPHTTPLIB_CONNECTION_TIMEOUT_SECOND #define CPPHTTPLIB_CONNECTION_TIMEOUT_SECOND 300 #endif #ifndef CPPHTTPLIB_CONNECTION_TIMEOUT_USECOND #define CPPHTTPLIB_CONNECTION_TIMEOUT_USECOND 0 #endif #ifndef CPPHTTPLIB_READ_TIMEOUT_SECOND #define CPPHTTPLIB_READ_TIMEOUT_SECOND 5 #endif #ifndef CPPHTTPLIB_READ_TIMEOUT_USECOND #define CPPHTTPLIB_READ_TIMEOUT_USECOND 0 #endif #ifndef CPPHTTPLIB_WRITE_TIMEOUT_SECOND #define CPPHTTPLIB_WRITE_TIMEOUT_SECOND 5 #endif #ifndef CPPHTTPLIB_WRITE_TIMEOUT_USECOND #define CPPHTTPLIB_WRITE_TIMEOUT_USECOND 0 #endif #ifndef CPPHTTPLIB_IDLE_INTERVAL_SECOND #define CPPHTTPLIB_IDLE_INTERVAL_SECOND 0 #endif #ifndef CPPHTTPLIB_IDLE_INTERVAL_USECOND #ifdef _WIN32 #define CPPHTTPLIB_IDLE_INTERVAL_USECOND 10000 #else #define CPPHTTPLIB_IDLE_INTERVAL_USECOND 0 #endif #endif #ifndef CPPHTTPLIB_REQUEST_URI_MAX_LENGTH #define CPPHTTPLIB_REQUEST_URI_MAX_LENGTH 8192 #endif #ifndef CPPHTTPLIB_HEADER_MAX_LENGTH #define CPPHTTPLIB_HEADER_MAX_LENGTH 8192 #endif #ifndef CPPHTTPLIB_REDIRECT_MAX_COUNT #define CPPHTTPLIB_REDIRECT_MAX_COUNT 20 #endif #ifndef CPPHTTPLIB_PAYLOAD_MAX_LENGTH #define CPPHTTPLIB_PAYLOAD_MAX_LENGTH ((std::numeric_limits::max)()) #endif #ifndef CPPHTTPLIB_TCP_NODELAY #define CPPHTTPLIB_TCP_NODELAY false #endif #ifndef CPPHTTPLIB_RECV_BUFSIZ #define CPPHTTPLIB_RECV_BUFSIZ size_t(4096u) #endif #ifndef CPPHTTPLIB_COMPRESSION_BUFSIZ #define CPPHTTPLIB_COMPRESSION_BUFSIZ size_t(16384u) #endif #ifndef CPPHTTPLIB_THREAD_POOL_COUNT #define CPPHTTPLIB_THREAD_POOL_COUNT \ ((std::max)(8u, std::thread::hardware_concurrency() > 0 \ ? std::thread::hardware_concurrency() - 1 \ : 0)) #endif #ifndef CPPHTTPLIB_RECV_FLAGS #define CPPHTTPLIB_RECV_FLAGS 0 #endif #ifndef MSG_NOSIGNAL #define CPPHTTPLIB_SEND_FLAGS 0 #else #define CPPHTTPLIB_SEND_FLAGS MSG_NOSIGNAL #endif #ifndef CPPHTTPLIB_LISTEN_BACKLOG #define CPPHTTPLIB_LISTEN_BACKLOG 5 #endif /* * Headers */ #ifdef _WIN32 #ifndef _CRT_SECURE_NO_WARNINGS #define _CRT_SECURE_NO_WARNINGS #endif //_CRT_SECURE_NO_WARNINGS #ifndef _CRT_NONSTDC_NO_DEPRECATE #define _CRT_NONSTDC_NO_DEPRECATE #endif //_CRT_NONSTDC_NO_DEPRECATE #if defined(_MSC_VER) #ifdef _WIN64 using ssize_t = __int64; #else using ssize_t = int; #endif #if _MSC_VER < 1900 #define snprintf _snprintf_s #endif #endif // _MSC_VER #ifndef S_ISREG #define S_ISREG(m) (((m)&S_IFREG) == S_IFREG) #endif // S_ISREG #ifndef S_ISDIR #define S_ISDIR(m) (((m)&S_IFDIR) == S_IFDIR) #endif // S_ISDIR #ifndef NOMINMAX #define NOMINMAX #endif // NOMINMAX #include #ifdef _WINSOCKAPI_ #undef _WINSOCKAPI_ #endif #include #include #include #ifndef WSA_FLAG_NO_HANDLE_INHERIT #define WSA_FLAG_NO_HANDLE_INHERIT 0x80 #endif #ifdef _MSC_VER #pragma comment(lib, "ws2_32.lib") #pragma comment(lib, "crypt32.lib") #pragma comment(lib, "cryptui.lib") #endif #ifndef strcasecmp #define strcasecmp _stricmp #endif // strcasecmp using socket_t = SOCKET; #ifdef CPPHTTPLIB_USE_POLL #define poll(fds, nfds, timeout) WSAPoll(fds, nfds, timeout) #endif #else // not _WIN32 #include #include #include #include #include #ifdef __linux__ #include #endif #include #ifdef CPPHTTPLIB_USE_POLL #include #endif #include #include #include #include #include using socket_t = int; #ifndef INVALID_SOCKET #define INVALID_SOCKET (-1) #endif #endif //_WIN32 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "duckdb/common/re2_regex.hpp" #ifdef CPPHTTPLIB_OPENSSL_SUPPORT // these are defined in wincrypt.h and it breaks compilation if BoringSSL is // used #ifdef _WIN32 #undef X509_NAME #undef X509_CERT_PAIR #undef X509_EXTENSIONS #undef PKCS7_SIGNER_INFO #endif #include #include #include #include #if defined(_WIN32) && defined(OPENSSL_USE_APPLINK) #include #endif #include #include // Disabled OpenSSL version check for CI //#if OPENSSL_VERSION_NUMBER < 0x1010100fL //#error Sorry, OpenSSL versions prior to 1.1.1 are not supported //#endif #if OPENSSL_VERSION_NUMBER < 0x10100000L #include inline const unsigned char *ASN1_STRING_get0_data(const ASN1_STRING *asn1) { return M_ASN1_STRING_data(asn1); } #endif #endif #ifdef CPPHTTPLIB_ZLIB_SUPPORT #include #endif #ifdef CPPHTTPLIB_BROTLI_SUPPORT #include #include #endif /* * Declaration */ namespace CPPHTTPLIB_NAMESPACE { namespace detail { /* * Backport std::make_unique from C++14. * * NOTE: This code came up with the following stackoverflow post: * https://stackoverflow.com/questions/10149840/c-arrays-and-make-unique * */ template typename std::enable_if::value, std::unique_ptr>::type make_unique(Args &&...args) { return std::unique_ptr(new T(std::forward(args)...)); } template typename std::enable_if::value, std::unique_ptr>::type make_unique(std::size_t n) { typedef typename std::remove_extent::type RT; return std::unique_ptr(new RT[n]); } struct ci { bool operator()(const std::string &s1, const std::string &s2) const { return std::lexicographical_compare(s1.begin(), s1.end(), s2.begin(), s2.end(), [](unsigned char c1, unsigned char c2) { return ::tolower(c1) < ::tolower(c2); }); } }; } // namespace detail using Headers = std::multimap; using Params = std::multimap; using Match = duckdb_re2::Match; using Regex = duckdb_re2::Regex; using Progress = std::function; struct Response; using ResponseHandler = std::function; struct MultipartFormData { std::string name; std::string content; std::string filename; std::string content_type; }; using MultipartFormDataItems = std::vector; using MultipartFormDataMap = std::multimap; class DataSink { public: DataSink() : os(&sb_), sb_(*this) {} DataSink(const DataSink &) = delete; DataSink &operator=(const DataSink &) = delete; DataSink(DataSink &&) = delete; DataSink &operator=(DataSink &&) = delete; std::function write; std::function done; std::function is_writable; std::ostream os; private: class data_sink_streambuf : public std::streambuf { public: explicit data_sink_streambuf(DataSink &sink) : sink_(sink) {} protected: std::streamsize xsputn(const char *s, std::streamsize n) { sink_.write(s, static_cast(n)); return n; } private: DataSink &sink_; }; data_sink_streambuf sb_; }; using ContentProvider = std::function; using ContentProviderWithoutLength = std::function; using ContentProviderResourceReleaser = std::function; using ContentReceiverWithProgress = std::function; using ContentReceiver = std::function; using MultipartContentHeader = std::function; class ContentReader { public: using Reader = std::function; using MultipartReader = std::function; ContentReader(Reader reader, MultipartReader multipart_reader) : reader_(std::move(reader)), multipart_reader_(std::move(multipart_reader)) {} bool operator()(MultipartContentHeader header, ContentReceiver receiver) const { return multipart_reader_(std::move(header), std::move(receiver)); } bool operator()(ContentReceiver receiver) const { return reader_(std::move(receiver)); } Reader reader_; MultipartReader multipart_reader_; }; using Range = std::pair; using Ranges = std::vector; struct Request { std::string method; std::string path; Headers headers; std::string body; std::string remote_addr; int remote_port = -1; // for server std::string version; std::string target; Params params; MultipartFormDataMap files; Ranges ranges; Match matches; // for client ResponseHandler response_handler; ContentReceiverWithProgress content_receiver; Progress progress; #ifdef CPPHTTPLIB_OPENSSL_SUPPORT const SSL *ssl = nullptr; #endif bool has_header(const char *key) const; std::string get_header_value(const char *key, size_t id = 0) const; template T get_header_value(const char *key, size_t id = 0) const; size_t get_header_value_count(const char *key) const; void set_header(const char *key, const char *val); void set_header(const char *key, const std::string &val); bool has_param(const char *key) const; std::string get_param_value(const char *key, size_t id = 0) const; size_t get_param_value_count(const char *key) const; bool is_multipart_form_data() const; bool has_file(const char *key) const; MultipartFormData get_file_value(const char *key) const; // private members... size_t redirect_count_ = CPPHTTPLIB_REDIRECT_MAX_COUNT; size_t content_length_ = 0; ContentProvider content_provider_; bool is_chunked_content_provider_ = false; size_t authorization_count_ = 0; }; struct Response { std::string version; int status = -1; std::string reason; Headers headers; std::string body; std::string location; // Redirect location bool has_header(const char *key) const; std::string get_header_value(const char *key, size_t id = 0) const; template T get_header_value(const char *key, size_t id = 0) const; size_t get_header_value_count(const char *key) const; void set_header(const char *key, const char *val); void set_header(const char *key, const std::string &val); void set_redirect(const char *url, int status = 302); void set_redirect(const std::string &url, int status = 302); void set_content(const char *s, size_t n, const char *content_type); void set_content(const std::string &s, const char *content_type); void set_content_provider( size_t length, const char *content_type, ContentProvider provider, ContentProviderResourceReleaser resource_releaser = nullptr); void set_content_provider( const char *content_type, ContentProviderWithoutLength provider, ContentProviderResourceReleaser resource_releaser = nullptr); void set_chunked_content_provider( const char *content_type, ContentProviderWithoutLength provider, ContentProviderResourceReleaser resource_releaser = nullptr); Response() = default; Response(const Response &) = default; Response &operator=(const Response &) = default; Response(Response &&) = default; Response &operator=(Response &&) = default; ~Response() { if (content_provider_resource_releaser_) { content_provider_resource_releaser_(content_provider_success_); } } // private members... size_t content_length_ = 0; ContentProvider content_provider_; ContentProviderResourceReleaser content_provider_resource_releaser_; bool is_chunked_content_provider_ = false; bool content_provider_success_ = false; }; class Stream { public: virtual ~Stream() = default; virtual bool is_readable() const = 0; virtual bool is_writable() const = 0; virtual ssize_t read(char *ptr, size_t size) = 0; virtual ssize_t write(const char *ptr, size_t size) = 0; virtual void get_remote_ip_and_port(std::string &ip, int &port) const = 0; virtual socket_t socket() const = 0; template ssize_t write_format(const char *fmt, const Args &...args); ssize_t write(const char *ptr); ssize_t write(const std::string &s); }; class TaskQueue { public: TaskQueue() = default; virtual ~TaskQueue() = default; virtual void enqueue(std::function fn) = 0; virtual void shutdown() = 0; virtual void on_idle() {} }; class ThreadPool : public TaskQueue { public: explicit ThreadPool(size_t n) : shutdown_(false) { while (n) { threads_.emplace_back(worker(*this)); n--; } } ThreadPool(const ThreadPool &) = delete; ~ThreadPool() override = default; void enqueue(std::function fn) override { std::unique_lock lock(mutex_); jobs_.push_back(std::move(fn)); cond_.notify_one(); } void shutdown() override { // Stop all worker threads... { std::unique_lock lock(mutex_); shutdown_ = true; } cond_.notify_all(); // Join... for (auto &t : threads_) { t.join(); } } private: struct worker { explicit worker(ThreadPool &pool) : pool_(pool) {} void operator()() { for (;;) { std::function fn; { std::unique_lock lock(pool_.mutex_); pool_.cond_.wait( lock, [&] { return !pool_.jobs_.empty() || pool_.shutdown_; }); if (pool_.shutdown_ && pool_.jobs_.empty()) { break; } fn = pool_.jobs_.front(); pool_.jobs_.pop_front(); } assert(true == static_cast(fn)); fn(); } } ThreadPool &pool_; }; friend struct worker; std::vector threads_; std::list> jobs_; bool shutdown_; std::condition_variable cond_; std::mutex mutex_; }; using Logger = std::function; using SocketOptions = std::function; void default_socket_options(socket_t sock); class Server { public: using Handler = std::function; using ExceptionHandler = std::function; enum class HandlerResponse { Handled, Unhandled, }; using HandlerWithResponse = std::function; using HandlerWithContentReader = std::function; using Expect100ContinueHandler = std::function; Server(); virtual ~Server(); virtual bool is_valid() const; Server &Get(const std::string &pattern, Handler handler); Server &Post(const std::string &pattern, Handler handler); Server &Post(const std::string &pattern, HandlerWithContentReader handler); Server &Put(const std::string &pattern, Handler handler); Server &Put(const std::string &pattern, HandlerWithContentReader handler); Server &Patch(const std::string &pattern, Handler handler); Server &Patch(const std::string &pattern, HandlerWithContentReader handler); Server &Delete(const std::string &pattern, Handler handler); Server &Delete(const std::string &pattern, HandlerWithContentReader handler); Server &Options(const std::string &pattern, Handler handler); bool set_base_dir(const std::string &dir, const std::string &mount_point = std::string()); bool set_mount_point(const std::string &mount_point, const std::string &dir, Headers headers = Headers()); bool remove_mount_point(const std::string &mount_point); Server &set_file_extension_and_mimetype_mapping(const char *ext, const char *mime); Server &set_file_request_handler(Handler handler); Server &set_error_handler(HandlerWithResponse handler); Server &set_error_handler(Handler handler); Server &set_exception_handler(ExceptionHandler handler); Server &set_pre_routing_handler(HandlerWithResponse handler); Server &set_post_routing_handler(Handler handler); Server &set_expect_100_continue_handler(Expect100ContinueHandler handler); Server &set_logger(Logger logger); Server &set_address_family(int family); Server &set_tcp_nodelay(bool on); Server &set_socket_options(SocketOptions socket_options); Server &set_default_headers(Headers headers); Server &set_keep_alive_max_count(size_t count); Server &set_keep_alive_timeout(time_t sec); Server &set_read_timeout(time_t sec, time_t usec = 0); template Server &set_read_timeout(const std::chrono::duration &duration); Server &set_write_timeout(time_t sec, time_t usec = 0); template Server &set_write_timeout(const std::chrono::duration &duration); Server &set_idle_interval(time_t sec, time_t usec = 0); template Server &set_idle_interval(const std::chrono::duration &duration); Server &set_payload_max_length(size_t length); bool bind_to_port(const char *host, int port, int socket_flags = 0); int bind_to_any_port(const char *host, int socket_flags = 0); bool listen_after_bind(); bool listen(const char *host, int port, int socket_flags = 0); bool is_running() const; void stop(); std::function new_task_queue; protected: bool process_request(Stream &strm, bool close_connection, bool &connection_closed, const std::function &setup_request); std::atomic svr_sock_; size_t keep_alive_max_count_ = CPPHTTPLIB_KEEPALIVE_MAX_COUNT; time_t keep_alive_timeout_sec_ = CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND; time_t read_timeout_sec_ = CPPHTTPLIB_READ_TIMEOUT_SECOND; time_t read_timeout_usec_ = CPPHTTPLIB_READ_TIMEOUT_USECOND; time_t write_timeout_sec_ = CPPHTTPLIB_WRITE_TIMEOUT_SECOND; time_t write_timeout_usec_ = CPPHTTPLIB_WRITE_TIMEOUT_USECOND; time_t idle_interval_sec_ = CPPHTTPLIB_IDLE_INTERVAL_SECOND; time_t idle_interval_usec_ = CPPHTTPLIB_IDLE_INTERVAL_USECOND; size_t payload_max_length_ = CPPHTTPLIB_PAYLOAD_MAX_LENGTH; private: using Handlers = std::vector>; using HandlersForContentReader = std::vector>; socket_t create_server_socket(const char *host, int port, int socket_flags, SocketOptions socket_options) const; int bind_internal(const char *host, int port, int socket_flags); bool listen_internal(); bool routing(Request &req, Response &res, Stream &strm); bool handle_file_request(const Request &req, Response &res, bool head = false); bool dispatch_request(Request &req, Response &res, const Handlers &handlers); bool dispatch_request_for_content_reader(Request &req, Response &res, ContentReader content_reader, const HandlersForContentReader &handlers); bool parse_request_line(const char *s, Request &req); void apply_ranges(const Request &req, Response &res, std::string &content_type, std::string &boundary); bool write_response(Stream &strm, bool close_connection, const Request &req, Response &res); bool write_response_with_content(Stream &strm, bool close_connection, const Request &req, Response &res); bool write_response_core(Stream &strm, bool close_connection, const Request &req, Response &res, bool need_apply_ranges); bool write_content_with_provider(Stream &strm, const Request &req, Response &res, const std::string &boundary, const std::string &content_type); bool read_content(Stream &strm, Request &req, Response &res); bool read_content_with_content_receiver(Stream &strm, Request &req, Response &res, ContentReceiver receiver, MultipartContentHeader multipart_header, ContentReceiver multipart_receiver); bool read_content_core(Stream &strm, Request &req, Response &res, ContentReceiver receiver, MultipartContentHeader mulitpart_header, ContentReceiver multipart_receiver); virtual bool process_and_close_socket(socket_t sock); struct MountPointEntry { std::string mount_point; std::string base_dir; Headers headers; }; std::vector base_dirs_; std::atomic is_running_; std::map file_extension_and_mimetype_map_; Handler file_request_handler_; Handlers get_handlers_; Handlers post_handlers_; HandlersForContentReader post_handlers_for_content_reader_; Handlers put_handlers_; HandlersForContentReader put_handlers_for_content_reader_; Handlers patch_handlers_; HandlersForContentReader patch_handlers_for_content_reader_; Handlers delete_handlers_; HandlersForContentReader delete_handlers_for_content_reader_; Handlers options_handlers_; HandlerWithResponse error_handler_; ExceptionHandler exception_handler_; HandlerWithResponse pre_routing_handler_; Handler post_routing_handler_; Logger logger_; Expect100ContinueHandler expect_100_continue_handler_; int address_family_ = AF_UNSPEC; bool tcp_nodelay_ = CPPHTTPLIB_TCP_NODELAY; SocketOptions socket_options_ = default_socket_options; Headers default_headers_; }; enum class Error { Success = 0, Unknown, Connection, BindIPAddress, Read, Write, ExceedRedirectCount, Canceled, SSLConnection, SSLLoadingCerts, SSLServerVerification, UnsupportedMultipartBoundaryChars, Compression, ConnectionTimeout, }; std::string to_string(const Error error); std::ostream &operator<<(std::ostream &os, const Error &obj); class Result { public: Result(std::unique_ptr &&res, Error err, Headers &&request_headers = Headers{}) : res_(std::move(res)), err_(err), request_headers_(std::move(request_headers)) {} // Response operator bool() const { return res_ != nullptr; } bool operator==(std::nullptr_t) const { return res_ == nullptr; } bool operator!=(std::nullptr_t) const { return res_ != nullptr; } const Response &value() const { return *res_; } Response &value() { return *res_; } const Response &operator*() const { return *res_; } Response &operator*() { return *res_; } const Response *operator->() const { return res_.get(); } Response *operator->() { return res_.get(); } // Error Error error() const { return err_; } // Request Headers bool has_request_header(const char *key) const; std::string get_request_header_value(const char *key, size_t id = 0) const; template T get_request_header_value(const char *key, size_t id = 0) const; size_t get_request_header_value_count(const char *key) const; private: std::unique_ptr res_; Error err_; Headers request_headers_; }; class ClientImpl { public: explicit ClientImpl(const std::string &host); explicit ClientImpl(const std::string &host, int port); explicit ClientImpl(const std::string &host, int port, const std::string &client_cert_path, const std::string &client_key_path); virtual ~ClientImpl(); virtual bool is_valid() const; Result Get(const char *path); Result Get(const char *path, const Headers &headers); Result Get(const char *path, Progress progress); Result Get(const char *path, const Headers &headers, Progress progress); Result Get(const char *path, ContentReceiver content_receiver); Result Get(const char *path, const Headers &headers, ContentReceiver content_receiver); Result Get(const char *path, ContentReceiver content_receiver, Progress progress); Result Get(const char *path, const Headers &headers, ContentReceiver content_receiver, Progress progress); Result Get(const char *path, ResponseHandler response_handler, ContentReceiver content_receiver); Result Get(const char *path, const Headers &headers, ResponseHandler response_handler, ContentReceiver content_receiver); Result Get(const char *path, ResponseHandler response_handler, ContentReceiver content_receiver, Progress progress); Result Get(const char *path, const Headers &headers, ResponseHandler response_handler, ContentReceiver content_receiver, Progress progress); Result Get(const char *path, const Params ¶ms, const Headers &headers, Progress progress = nullptr); Result Get(const char *path, const Params ¶ms, const Headers &headers, ContentReceiver content_receiver, Progress progress = nullptr); Result Get(const char *path, const Params ¶ms, const Headers &headers, ResponseHandler response_handler, ContentReceiver content_receiver, Progress progress = nullptr); Result Head(const char *path); Result Head(const char *path, const Headers &headers); Result Post(const char *path); Result Post(const char *path, const char *body, size_t content_length, const char *content_type); Result Post(const char *path, const Headers &headers, const char *body, size_t content_length, const char *content_type); Result Post(const char *path, const std::string &body, const char *content_type); Result Post(const char *path, const Headers &headers, const std::string &body, const char *content_type); Result Post(const char *path, size_t content_length, ContentProvider content_provider, const char *content_type); Result Post(const char *path, ContentProviderWithoutLength content_provider, const char *content_type); Result Post(const char *path, const Headers &headers, size_t content_length, ContentProvider content_provider, const char *content_type); Result Post(const char *path, const Headers &headers, ContentProviderWithoutLength content_provider, const char *content_type); Result Post(const char *path, const Params ¶ms); Result Post(const char *path, const Headers &headers, const Params ¶ms); Result Post(const char *path, const MultipartFormDataItems &items); Result Post(const char *path, const Headers &headers, const MultipartFormDataItems &items); Result Post(const char *path, const Headers &headers, const MultipartFormDataItems &items, const std::string &boundary); Result Put(const char *path); Result Put(const char *path, const char *body, size_t content_length, const char *content_type); Result Put(const char *path, const Headers &headers, const char *body, size_t content_length, const char *content_type); Result Put(const char *path, const std::string &body, const char *content_type); Result Put(const char *path, const Headers &headers, const std::string &body, const char *content_type); Result Put(const char *path, size_t content_length, ContentProvider content_provider, const char *content_type); Result Put(const char *path, ContentProviderWithoutLength content_provider, const char *content_type); Result Put(const char *path, const Headers &headers, size_t content_length, ContentProvider content_provider, const char *content_type); Result Put(const char *path, const Headers &headers, ContentProviderWithoutLength content_provider, const char *content_type); Result Put(const char *path, const Params ¶ms); Result Put(const char *path, const Headers &headers, const Params ¶ms); Result Patch(const char *path); Result Patch(const char *path, const char *body, size_t content_length, const char *content_type); Result Patch(const char *path, const Headers &headers, const char *body, size_t content_length, const char *content_type); Result Patch(const char *path, const std::string &body, const char *content_type); Result Patch(const char *path, const Headers &headers, const std::string &body, const char *content_type); Result Patch(const char *path, size_t content_length, ContentProvider content_provider, const char *content_type); Result Patch(const char *path, ContentProviderWithoutLength content_provider, const char *content_type); Result Patch(const char *path, const Headers &headers, size_t content_length, ContentProvider content_provider, const char *content_type); Result Patch(const char *path, const Headers &headers, ContentProviderWithoutLength content_provider, const char *content_type); Result Delete(const char *path); Result Delete(const char *path, const Headers &headers); Result Delete(const char *path, const char *body, size_t content_length, const char *content_type); Result Delete(const char *path, const Headers &headers, const char *body, size_t content_length, const char *content_type); Result Delete(const char *path, const std::string &body, const char *content_type); Result Delete(const char *path, const Headers &headers, const std::string &body, const char *content_type); Result Options(const char *path); Result Options(const char *path, const Headers &headers); bool send(Request &req, Response &res, Error &error); Result send(const Request &req); size_t is_socket_open() const; void stop(); void set_hostname_addr_map(const std::map addr_map); void set_default_headers(Headers headers); void set_address_family(int family); void set_tcp_nodelay(bool on); void set_socket_options(SocketOptions socket_options); void set_connection_timeout(time_t sec, time_t usec = 0); template void set_connection_timeout(const std::chrono::duration &duration); void set_read_timeout(time_t sec, time_t usec = 0); template void set_read_timeout(const std::chrono::duration &duration); void set_write_timeout(time_t sec, time_t usec = 0); template void set_write_timeout(const std::chrono::duration &duration); void set_basic_auth(const char *username, const char *password); void set_bearer_token_auth(const char *token); #ifdef CPPHTTPLIB_OPENSSL_SUPPORT void set_digest_auth(const char *username, const char *password); #endif void set_keep_alive(bool on); void set_follow_location(bool on); void set_url_encode(bool on); void set_compress(bool on); void set_decompress(bool on); void set_interface(const char *intf); void set_proxy(const char *host, int port); void set_proxy_basic_auth(const char *username, const char *password); void set_proxy_bearer_token_auth(const char *token); #ifdef CPPHTTPLIB_OPENSSL_SUPPORT void set_proxy_digest_auth(const char *username, const char *password); #endif #ifdef CPPHTTPLIB_OPENSSL_SUPPORT void set_ca_cert_path(const char *ca_cert_file_path, const char *ca_cert_dir_path = nullptr); void set_ca_cert_store(X509_STORE *ca_cert_store); #endif #ifdef CPPHTTPLIB_OPENSSL_SUPPORT void enable_server_certificate_verification(bool enabled); #endif void set_logger(Logger logger); protected: struct Socket { socket_t sock = INVALID_SOCKET; #ifdef CPPHTTPLIB_OPENSSL_SUPPORT SSL *ssl = nullptr; #endif bool is_open() const { return sock != INVALID_SOCKET; } }; Result send_(Request &&req); virtual bool create_and_connect_socket(Socket &socket, Error &error); // All of: // shutdown_ssl // shutdown_socket // close_socket // should ONLY be called when socket_mutex_ is locked. // Also, shutdown_ssl and close_socket should also NOT be called concurrently // with a DIFFERENT thread sending requests using that socket. virtual void shutdown_ssl(Socket &socket, bool shutdown_gracefully); void shutdown_socket(Socket &socket); void close_socket(Socket &socket); bool process_request(Stream &strm, Request &req, Response &res, bool close_connection, Error &error); bool write_content_with_provider(Stream &strm, const Request &req, Error &error); void copy_settings(const ClientImpl &rhs); // Socket endoint information const std::string host_; const int port_; const std::string host_and_port_; // Current open socket Socket socket_; mutable std::mutex socket_mutex_; std::recursive_mutex request_mutex_; // These are all protected under socket_mutex size_t socket_requests_in_flight_ = 0; std::thread::id socket_requests_are_from_thread_ = std::thread::id(); bool socket_should_be_closed_when_request_is_done_ = false; // Hostname-IP map std::map addr_map_; // Default headers Headers default_headers_; // Settings std::string client_cert_path_; std::string client_key_path_; time_t connection_timeout_sec_ = CPPHTTPLIB_CONNECTION_TIMEOUT_SECOND; time_t connection_timeout_usec_ = CPPHTTPLIB_CONNECTION_TIMEOUT_USECOND; time_t read_timeout_sec_ = CPPHTTPLIB_READ_TIMEOUT_SECOND; time_t read_timeout_usec_ = CPPHTTPLIB_READ_TIMEOUT_USECOND; time_t write_timeout_sec_ = CPPHTTPLIB_WRITE_TIMEOUT_SECOND; time_t write_timeout_usec_ = CPPHTTPLIB_WRITE_TIMEOUT_USECOND; std::string basic_auth_username_; std::string basic_auth_password_; std::string bearer_token_auth_token_; #ifdef CPPHTTPLIB_OPENSSL_SUPPORT std::string digest_auth_username_; std::string digest_auth_password_; #endif bool keep_alive_ = false; bool follow_location_ = false; bool url_encode_ = true; int address_family_ = AF_UNSPEC; bool tcp_nodelay_ = CPPHTTPLIB_TCP_NODELAY; SocketOptions socket_options_ = nullptr; bool compress_ = false; bool decompress_ = true; std::string interface_; std::string proxy_host_; int proxy_port_ = -1; std::string proxy_basic_auth_username_; std::string proxy_basic_auth_password_; std::string proxy_bearer_token_auth_token_; #ifdef CPPHTTPLIB_OPENSSL_SUPPORT std::string proxy_digest_auth_username_; std::string proxy_digest_auth_password_; #endif #ifdef CPPHTTPLIB_OPENSSL_SUPPORT std::string ca_cert_file_path_; std::string ca_cert_dir_path_; X509_STORE *ca_cert_store_ = nullptr; #endif #ifdef CPPHTTPLIB_OPENSSL_SUPPORT bool server_certificate_verification_ = true; #endif Logger logger_; private: socket_t create_client_socket(Error &error) const; bool read_response_line(Stream &strm, const Request &req, Response &res); bool write_request(Stream &strm, Request &req, bool close_connection, Error &error); bool redirect(Request &req, Response &res, Error &error); bool handle_request(Stream &strm, Request &req, Response &res, bool close_connection, Error &error); std::unique_ptr send_with_content_provider( Request &req, // const char *method, const char *path, const Headers &headers, const char *body, size_t content_length, ContentProvider content_provider, ContentProviderWithoutLength content_provider_without_length, const char *content_type, Error &error); Result send_with_content_provider( const char *method, const char *path, const Headers &headers, const char *body, size_t content_length, ContentProvider content_provider, ContentProviderWithoutLength content_provider_without_length, const char *content_type); std::string adjust_host_string(const std::string &host) const; virtual bool process_socket(const Socket &socket, std::function callback); virtual bool is_ssl() const; }; class Client { public: // Universal interface explicit Client(const std::string &scheme_host_port); explicit Client(const std::string &scheme_host_port, const std::string &client_cert_path, const std::string &client_key_path); // HTTP only interface explicit Client(const std::string &host, int port); explicit Client(const std::string &host, int port, const std::string &client_cert_path, const std::string &client_key_path); Client(Client &&) = default; ~Client(); bool is_valid() const; Result Get(const char *path); Result Get(const char *path, const Headers &headers); Result Get(const char *path, Progress progress); Result Get(const char *path, const Headers &headers, Progress progress); Result Get(const char *path, ContentReceiver content_receiver); Result Get(const char *path, const Headers &headers, ContentReceiver content_receiver); Result Get(const char *path, ContentReceiver content_receiver, Progress progress); Result Get(const char *path, const Headers &headers, ContentReceiver content_receiver, Progress progress); Result Get(const char *path, ResponseHandler response_handler, ContentReceiver content_receiver); Result Get(const char *path, const Headers &headers, ResponseHandler response_handler, ContentReceiver content_receiver); Result Get(const char *path, const Headers &headers, ResponseHandler response_handler, ContentReceiver content_receiver, Progress progress); Result Get(const char *path, ResponseHandler response_handler, ContentReceiver content_receiver, Progress progress); Result Get(const char *path, const Params ¶ms, const Headers &headers, Progress progress = nullptr); Result Get(const char *path, const Params ¶ms, const Headers &headers, ContentReceiver content_receiver, Progress progress = nullptr); Result Get(const char *path, const Params ¶ms, const Headers &headers, ResponseHandler response_handler, ContentReceiver content_receiver, Progress progress = nullptr); Result Head(const char *path); Result Head(const char *path, const Headers &headers); Result Post(const char *path); Result Post(const char *path, const char *body, size_t content_length, const char *content_type); Result Post(const char *path, const Headers &headers, const char *body, size_t content_length, const char *content_type); Result Post(const char *path, const std::string &body, const char *content_type); Result Post(const char *path, const Headers &headers, const std::string &body, const char *content_type); Result Post(const char *path, size_t content_length, ContentProvider content_provider, const char *content_type); Result Post(const char *path, ContentProviderWithoutLength content_provider, const char *content_type); Result Post(const char *path, const Headers &headers, size_t content_length, ContentProvider content_provider, const char *content_type); Result Post(const char *path, const Headers &headers, ContentProviderWithoutLength content_provider, const char *content_type); Result Post(const char *path, const Params ¶ms); Result Post(const char *path, const Headers &headers, const Params ¶ms); Result Post(const char *path, const MultipartFormDataItems &items); Result Post(const char *path, const Headers &headers, const MultipartFormDataItems &items); Result Post(const char *path, const Headers &headers, const MultipartFormDataItems &items, const std::string &boundary); Result Put(const char *path); Result Put(const char *path, const char *body, size_t content_length, const char *content_type); Result Put(const char *path, const Headers &headers, const char *body, size_t content_length, const char *content_type); Result Put(const char *path, const std::string &body, const char *content_type); Result Put(const char *path, const Headers &headers, const std::string &body, const char *content_type); Result Put(const char *path, size_t content_length, ContentProvider content_provider, const char *content_type); Result Put(const char *path, ContentProviderWithoutLength content_provider, const char *content_type); Result Put(const char *path, const Headers &headers, size_t content_length, ContentProvider content_provider, const char *content_type); Result Put(const char *path, const Headers &headers, ContentProviderWithoutLength content_provider, const char *content_type); Result Put(const char *path, const Params ¶ms); Result Put(const char *path, const Headers &headers, const Params ¶ms); Result Patch(const char *path); Result Patch(const char *path, const char *body, size_t content_length, const char *content_type); Result Patch(const char *path, const Headers &headers, const char *body, size_t content_length, const char *content_type); Result Patch(const char *path, const std::string &body, const char *content_type); Result Patch(const char *path, const Headers &headers, const std::string &body, const char *content_type); Result Patch(const char *path, size_t content_length, ContentProvider content_provider, const char *content_type); Result Patch(const char *path, ContentProviderWithoutLength content_provider, const char *content_type); Result Patch(const char *path, const Headers &headers, size_t content_length, ContentProvider content_provider, const char *content_type); Result Patch(const char *path, const Headers &headers, ContentProviderWithoutLength content_provider, const char *content_type); Result Delete(const char *path); Result Delete(const char *path, const Headers &headers); Result Delete(const char *path, const char *body, size_t content_length, const char *content_type); Result Delete(const char *path, const Headers &headers, const char *body, size_t content_length, const char *content_type); Result Delete(const char *path, const std::string &body, const char *content_type); Result Delete(const char *path, const Headers &headers, const std::string &body, const char *content_type); Result Options(const char *path); Result Options(const char *path, const Headers &headers); bool send(Request &req, Response &res, Error &error); Result send(const Request &req); size_t is_socket_open() const; void stop(); void set_hostname_addr_map(const std::map addr_map); void set_default_headers(Headers headers); void set_address_family(int family); void set_tcp_nodelay(bool on); void set_socket_options(SocketOptions socket_options); void set_connection_timeout(time_t sec, time_t usec = 0); template void set_connection_timeout(const std::chrono::duration &duration); void set_read_timeout(time_t sec, time_t usec = 0); template void set_read_timeout(const std::chrono::duration &duration); void set_write_timeout(time_t sec, time_t usec = 0); template void set_write_timeout(const std::chrono::duration &duration); void set_basic_auth(const char *username, const char *password); void set_bearer_token_auth(const char *token); #ifdef CPPHTTPLIB_OPENSSL_SUPPORT void set_digest_auth(const char *username, const char *password); #endif void set_keep_alive(bool on); void set_follow_location(bool on); void set_url_encode(bool on); void set_compress(bool on); void set_decompress(bool on); void set_interface(const char *intf); void set_proxy(const char *host, int port); void set_proxy_basic_auth(const char *username, const char *password); void set_proxy_bearer_token_auth(const char *token); #ifdef CPPHTTPLIB_OPENSSL_SUPPORT void set_proxy_digest_auth(const char *username, const char *password); #endif #ifdef CPPHTTPLIB_OPENSSL_SUPPORT void enable_server_certificate_verification(bool enabled); #endif void set_logger(Logger logger); // SSL #ifdef CPPHTTPLIB_OPENSSL_SUPPORT void set_ca_cert_path(const char *ca_cert_file_path, const char *ca_cert_dir_path = nullptr); void set_ca_cert_store(X509_STORE *ca_cert_store); long get_openssl_verify_result() const; SSL_CTX *ssl_context() const; #endif private: std::unique_ptr cli_; #ifdef CPPHTTPLIB_OPENSSL_SUPPORT bool is_ssl_ = false; #endif }; #ifdef CPPHTTPLIB_OPENSSL_SUPPORT class SSLServer : public Server { public: SSLServer(const char *cert_path, const char *private_key_path, const char *client_ca_cert_file_path = nullptr, const char *client_ca_cert_dir_path = nullptr); SSLServer(X509 *cert, EVP_PKEY *private_key, X509_STORE *client_ca_cert_store = nullptr); SSLServer( const std::function &setup_ssl_ctx_callback); ~SSLServer() override; bool is_valid() const override; SSL_CTX *ssl_context() const; private: bool process_and_close_socket(socket_t sock) override; SSL_CTX *ctx_; std::mutex ctx_mutex_; }; class SSLClient : public ClientImpl { public: explicit SSLClient(const std::string &host); explicit SSLClient(const std::string &host, int port); explicit SSLClient(const std::string &host, int port, const std::string &client_cert_path, const std::string &client_key_path); explicit SSLClient(const std::string &host, int port, X509 *client_cert, EVP_PKEY *client_key); ~SSLClient() override; bool is_valid() const override; void set_ca_cert_store(X509_STORE *ca_cert_store); long get_openssl_verify_result() const; SSL_CTX *ssl_context() const; private: bool create_and_connect_socket(Socket &socket, Error &error) override; void shutdown_ssl(Socket &socket, bool shutdown_gracefully) override; void shutdown_ssl_impl(Socket &socket, bool shutdown_socket); bool process_socket(const Socket &socket, std::function callback) override; bool is_ssl() const override; bool connect_with_proxy(Socket &sock, Response &res, bool &success, Error &error); bool initialize_ssl(Socket &socket, Error &error); bool load_certs(); bool verify_host(X509 *server_cert) const; bool verify_host_with_subject_alt_name(X509 *server_cert) const; bool verify_host_with_common_name(X509 *server_cert) const; bool check_host_name(const char *pattern, size_t pattern_len) const; SSL_CTX *ctx_; std::mutex ctx_mutex_; std::once_flag initialize_cert_; std::vector host_components_; long verify_result_ = 0; friend class ClientImpl; }; #endif /* * Implementation of template methods. */ namespace detail { template inline void duration_to_sec_and_usec(const T &duration, U callback) { auto sec = std::chrono::duration_cast(duration).count(); auto usec = std::chrono::duration_cast( duration - std::chrono::seconds(sec)) .count(); callback(sec, usec); } template inline T get_header_value(const Headers & /*headers*/, const char * /*key*/, size_t /*id*/ = 0, uint64_t /*def*/ = 0) {} template <> inline uint64_t get_header_value(const Headers &headers, const char *key, size_t id, uint64_t def) { auto rng = headers.equal_range(key); auto it = rng.first; std::advance(it, static_cast(id)); if (it != rng.second) { return std::strtoull(it->second.data(), nullptr, 10); } return def; } } // namespace detail template inline T Request::get_header_value(const char *key, size_t id) const { return detail::get_header_value(headers, key, id, 0); } template inline T Response::get_header_value(const char *key, size_t id) const { return detail::get_header_value(headers, key, id, 0); } template inline ssize_t Stream::write_format(const char *fmt, const Args &...args) { const auto bufsiz = 2048; std::array buf{}; #if defined(_MSC_VER) && _MSC_VER < 1900 auto sn = _snprintf_s(buf.data(), bufsiz, _TRUNCATE, fmt, args...); #else auto sn = snprintf(buf.data(), buf.size() - 1, fmt, args...); #endif if (sn <= 0) { return sn; } auto n = static_cast(sn); if (n >= buf.size() - 1) { std::vector glowable_buf(buf.size()); while (n >= glowable_buf.size() - 1) { glowable_buf.resize(glowable_buf.size() * 2); #if defined(_MSC_VER) && _MSC_VER < 1900 n = static_cast(_snprintf_s(&glowable_buf[0], glowable_buf.size(), glowable_buf.size() - 1, fmt, args...)); #else n = static_cast( snprintf(&glowable_buf[0], glowable_buf.size() - 1, fmt, args...)); #endif } return write(&glowable_buf[0], n); } else { return write(buf.data(), n); } } inline void default_socket_options(socket_t sock) { int yes = 1; #ifdef _WIN32 setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, reinterpret_cast(&yes), sizeof(yes)); setsockopt(sock, SOL_SOCKET, SO_EXCLUSIVEADDRUSE, reinterpret_cast(&yes), sizeof(yes)); #else #ifdef SO_REUSEPORT setsockopt(sock, SOL_SOCKET, SO_REUSEPORT, reinterpret_cast(&yes), sizeof(yes)); #else setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, reinterpret_cast(&yes), sizeof(yes)); #endif #endif } template inline Server & Server::set_read_timeout(const std::chrono::duration &duration) { detail::duration_to_sec_and_usec( duration, [&](time_t sec, time_t usec) { set_read_timeout(sec, usec); }); return *this; } template inline Server & Server::set_write_timeout(const std::chrono::duration &duration) { detail::duration_to_sec_and_usec( duration, [&](time_t sec, time_t usec) { set_write_timeout(sec, usec); }); return *this; } template inline Server & Server::set_idle_interval(const std::chrono::duration &duration) { detail::duration_to_sec_and_usec( duration, [&](time_t sec, time_t usec) { set_idle_interval(sec, usec); }); return *this; } inline std::string to_string(const Error error) { switch (error) { case Error::Success: return "Success"; case Error::Connection: return "Connection"; case Error::BindIPAddress: return "BindIPAddress"; case Error::Read: return "Read"; case Error::Write: return "Write"; case Error::ExceedRedirectCount: return "ExceedRedirectCount"; case Error::Canceled: return "Canceled"; case Error::SSLConnection: return "SSLConnection"; case Error::SSLLoadingCerts: return "SSLLoadingCerts"; case Error::SSLServerVerification: return "SSLServerVerification"; case Error::UnsupportedMultipartBoundaryChars: return "UnsupportedMultipartBoundaryChars"; case Error::Compression: return "Compression"; case Error::ConnectionTimeout: return "ConnectionTimeout"; case Error::Unknown: return "Unknown"; default: break; } return "Invalid"; } inline std::ostream &operator<<(std::ostream &os, const Error &obj) { os << to_string(obj); os << " (" << static_cast::type>(obj) << ')'; return os; } template inline T Result::get_request_header_value(const char *key, size_t id) const { return detail::get_header_value(request_headers_, key, id, 0); } template inline void ClientImpl::set_connection_timeout( const std::chrono::duration &duration) { detail::duration_to_sec_and_usec(duration, [&](time_t sec, time_t usec) { set_connection_timeout(sec, usec); }); } template inline void ClientImpl::set_read_timeout( const std::chrono::duration &duration) { detail::duration_to_sec_and_usec( duration, [&](time_t sec, time_t usec) { set_read_timeout(sec, usec); }); } template inline void ClientImpl::set_write_timeout( const std::chrono::duration &duration) { detail::duration_to_sec_and_usec( duration, [&](time_t sec, time_t usec) { set_write_timeout(sec, usec); }); } template inline void Client::set_connection_timeout( const std::chrono::duration &duration) { cli_->set_connection_timeout(duration); } template inline void Client::set_read_timeout(const std::chrono::duration &duration) { cli_->set_read_timeout(duration); } template inline void Client::set_write_timeout(const std::chrono::duration &duration) { cli_->set_write_timeout(duration); } /* * Forward declarations and types that will be part of the .h file if split into * .h + .cc. */ std::string hosted_at(const char *hostname); void hosted_at(const char *hostname, std::vector &addrs); std::string append_query_params(const char *path, const Params ¶ms); std::pair make_range_header(Ranges ranges); std::pair make_basic_authentication_header(const std::string &username, const std::string &password, bool is_proxy = false); namespace detail { std::string encode_query_param(const std::string &value); std::string decode_url(const std::string &s, bool convert_plus_to_space); void read_file(const std::string &path, std::string &out); std::string trim_copy(const std::string &s); void split(const char *b, const char *e, char d, std::function fn); bool process_client_socket(socket_t sock, time_t read_timeout_sec, time_t read_timeout_usec, time_t write_timeout_sec, time_t write_timeout_usec, std::function callback); socket_t create_client_socket( const char *host, const char *ip, int port, int address_family, bool tcp_nodelay, SocketOptions socket_options, time_t connection_timeout_sec, time_t connection_timeout_usec, time_t read_timeout_sec, time_t read_timeout_usec, time_t write_timeout_sec, time_t write_timeout_usec, const std::string &intf, Error &error); const char *get_header_value(const Headers &headers, const char *key, size_t id = 0, const char *def = nullptr); std::string params_to_query_str(const Params ¶ms); void parse_query_text(const std::string &s, Params ¶ms); bool parse_range_header(const std::string &s, Ranges &ranges); int close_socket(socket_t sock); ssize_t send_socket(socket_t sock, const void *ptr, size_t size, int flags); ssize_t read_socket(socket_t sock, void *ptr, size_t size, int flags); enum class EncodingType { None = 0, Gzip, Brotli }; EncodingType encoding_type(const Request &req, const Response &res); class BufferStream : public Stream { public: BufferStream() = default; ~BufferStream() override = default; bool is_readable() const override; bool is_writable() const override; ssize_t read(char *ptr, size_t size) override; ssize_t write(const char *ptr, size_t size) override; void get_remote_ip_and_port(std::string &ip, int &port) const override; socket_t socket() const override; const std::string &get_buffer() const; private: std::string buffer; size_t position = 0; }; class compressor { public: virtual ~compressor() = default; typedef std::function Callback; virtual bool compress(const char *data, size_t data_length, bool last, Callback callback) = 0; }; class decompressor { public: virtual ~decompressor() = default; virtual bool is_valid() const = 0; typedef std::function Callback; virtual bool decompress(const char *data, size_t data_length, Callback callback) = 0; }; class nocompressor : public compressor { public: virtual ~nocompressor() = default; bool compress(const char *data, size_t data_length, bool /*last*/, Callback callback) override; }; #ifdef CPPHTTPLIB_ZLIB_SUPPORT class gzip_compressor : public compressor { public: gzip_compressor(); ~gzip_compressor(); bool compress(const char *data, size_t data_length, bool last, Callback callback) override; private: bool is_valid_ = false; z_stream strm_; }; class gzip_decompressor : public decompressor { public: gzip_decompressor(); ~gzip_decompressor(); bool is_valid() const override; bool decompress(const char *data, size_t data_length, Callback callback) override; private: bool is_valid_ = false; z_stream strm_; }; #endif #ifdef CPPHTTPLIB_BROTLI_SUPPORT class brotli_compressor : public compressor { public: brotli_compressor(); ~brotli_compressor(); bool compress(const char *data, size_t data_length, bool last, Callback callback) override; private: BrotliEncoderState *state_ = nullptr; }; class brotli_decompressor : public decompressor { public: brotli_decompressor(); ~brotli_decompressor(); bool is_valid() const override; bool decompress(const char *data, size_t data_length, Callback callback) override; private: BrotliDecoderResult decoder_r; BrotliDecoderState *decoder_s = nullptr; }; #endif // 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); const char *ptr() const; size_t size() const; bool end_with_crlf() const; bool getline(); private: void append(char c); Stream &strm_; char *fixed_buffer_; const size_t fixed_buffer_size_; size_t fixed_buffer_used_size_ = 0; std::string glowable_buffer_; }; } // namespace detail // ---------------------------------------------------------------------------- /* * Implementation that will be part of the .cc file if split into .h + .cc. */ namespace detail { inline bool is_hex(char c, int &v) { if (0x20 <= c && isdigit(c)) { v = c - '0'; return true; } else if ('A' <= c && c <= 'F') { v = c - 'A' + 10; return true; } else if ('a' <= c && c <= 'f') { v = c - 'a' + 10; return true; } return false; } inline bool from_hex_to_i(const std::string &s, size_t i, size_t cnt, int &val) { if (i >= s.size()) { return false; } val = 0; for (; cnt; i++, cnt--) { if (!s[i]) { return false; } int v = 0; if (is_hex(s[i], v)) { val = val * 16 + v; } else { return false; } } return true; } inline std::string from_i_to_hex(size_t n) { const char *charset = "0123456789abcdef"; std::string ret; do { ret = charset[n & 15] + ret; n >>= 4; } while (n > 0); return ret; } inline size_t to_utf8(int code, char *buff) { if (code < 0x0080) { buff[0] = (code & 0x7F); return 1; } else if (code < 0x0800) { buff[0] = static_cast(0xC0 | ((code >> 6) & 0x1F)); buff[1] = static_cast(0x80 | (code & 0x3F)); return 2; } else if (code < 0xD800) { buff[0] = static_cast(0xE0 | ((code >> 12) & 0xF)); buff[1] = static_cast(0x80 | ((code >> 6) & 0x3F)); buff[2] = static_cast(0x80 | (code & 0x3F)); return 3; } else if (code < 0xE000) { // D800 - DFFF is invalid... return 0; } else if (code < 0x10000) { buff[0] = static_cast(0xE0 | ((code >> 12) & 0xF)); buff[1] = static_cast(0x80 | ((code >> 6) & 0x3F)); buff[2] = static_cast(0x80 | (code & 0x3F)); return 3; } else if (code < 0x110000) { buff[0] = static_cast(0xF0 | ((code >> 18) & 0x7)); buff[1] = static_cast(0x80 | ((code >> 12) & 0x3F)); buff[2] = static_cast(0x80 | ((code >> 6) & 0x3F)); buff[3] = static_cast(0x80 | (code & 0x3F)); return 4; } // NOTREACHED return 0; } // NOTE: This code came up with the following stackoverflow post: // https://stackoverflow.com/questions/180947/base64-decode-snippet-in-c inline std::string base64_encode(const std::string &in) { static const auto lookup = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; std::string out; out.reserve(in.size()); int val = 0; int valb = -6; for (auto c : in) { val = (val << 8) + static_cast(c); valb += 8; while (valb >= 0) { out.push_back(lookup[(val >> valb) & 0x3F]); valb -= 6; } } if (valb > -6) { out.push_back(lookup[((val << 8) >> (valb + 8)) & 0x3F]); } while (out.size() % 4) { out.push_back('='); } return out; } inline bool is_file(const std::string &path) { #ifdef _WIN32 return _access_s(path.c_str(), 0) == 0; #else struct stat st; return stat(path.c_str(), &st) >= 0 && S_ISREG(st.st_mode); #endif } inline bool is_dir(const std::string &path) { struct stat st; return stat(path.c_str(), &st) >= 0 && S_ISDIR(st.st_mode); } inline bool is_valid_path(const std::string &path) { size_t level = 0; size_t i = 0; // Skip slash while (i < path.size() && path[i] == '/') { i++; } while (i < path.size()) { // Read component auto beg = i; while (i < path.size() && path[i] != '/') { i++; } auto len = i - beg; assert(len > 0); if (!path.compare(beg, len, ".")) { ; } else if (!path.compare(beg, len, "..")) { if (level == 0) { return false; } level--; } else { level++; } // Skip slash while (i < path.size() && path[i] == '/') { i++; } } return true; } inline std::string encode_query_param(const std::string &value) { std::ostringstream escaped; escaped.fill('0'); escaped << std::hex; for (auto c : value) { if (std::isalnum(static_cast(c)) || c == '-' || c == '_' || c == '.' || c == '!' || c == '~' || c == '*' || c == '\'' || c == '(' || c == ')') { escaped << c; } else { escaped << std::uppercase; escaped << '%' << std::setw(2) << static_cast(static_cast(c)); escaped << std::nouppercase; } } return escaped.str(); } inline std::string encode_url(const std::string &s) { std::string result; result.reserve(s.size()); for (size_t i = 0; s[i]; i++) { switch (s[i]) { case ' ': result += "%20"; break; // case '+': result += "%2B"; break; case '\r': result += "%0D"; break; case '\n': result += "%0A"; break; case '\'': result += "%27"; break; case ',': result += "%2C"; break; // case ':': result += "%3A"; break; // ok? probably... case ';': result += "%3B"; break; default: auto c = static_cast(s[i]); if (c >= 0x80) { result += '%'; char hex[4]; auto len = snprintf(hex, sizeof(hex) - 1, "%02X", c); assert(len == 2); result.append(hex, static_cast(len)); } else { result += s[i]; } break; } } return result; } inline std::string decode_url(const std::string &s, bool convert_plus_to_space) { std::string result; for (size_t i = 0; i < s.size(); i++) { if (s[i] == '%' && i + 1 < s.size()) { if (s[i + 1] == 'u') { int val = 0; if (from_hex_to_i(s, i + 2, 4, val)) { // 4 digits Unicode codes char buff[4]; size_t len = to_utf8(val, buff); if (len > 0) { result.append(buff, len); } i += 5; // 'u0000' } else { result += s[i]; } } else { int val = 0; if (from_hex_to_i(s, i + 1, 2, val)) { // 2 digits hex codes if (static_cast(val) == '+'){ // We don't decode + result += "%2B"; } else { result += static_cast(val); } i += 2; // '00' } else { result += s[i]; } } } else if (convert_plus_to_space && s[i] == '+') { result += ' '; } else { result += s[i]; } } return result; } inline void read_file(const std::string &path, std::string &out) { std::ifstream fs(path, std::ios_base::binary); fs.seekg(0, std::ios_base::end); auto size = fs.tellg(); fs.seekg(0); out.resize(static_cast(size)); fs.read(&out[0], static_cast(size)); } inline std::string file_extension(const std::string &path) { Match m; static Regex re("\\.([a-zA-Z0-9]+)$"); if (duckdb_re2::RegexSearch(path, m, re)) { return m.str(1); } return std::string(); } inline bool is_space_or_tab(char c) { return c == ' ' || c == '\t'; } inline std::pair trim(const char *b, const char *e, size_t left, size_t right) { while (b + left < e && is_space_or_tab(b[left])) { left++; } while (right > 0 && is_space_or_tab(b[right - 1])) { right--; } return std::make_pair(left, right); } inline std::string trim_copy(const std::string &s) { auto r = trim(s.data(), s.data() + s.size(), 0, s.size()); return s.substr(r.first, r.second - r.first); } inline void split(const char *b, const char *e, char d, std::function fn) { size_t i = 0; size_t beg = 0; while (e ? (b + i < e) : (b[i] != '\0')) { if (b[i] == d) { auto r = trim(b, e, beg, i); if (r.first < r.second) { fn(&b[r.first], &b[r.second]); } beg = i + 1; } i++; } if (i) { auto r = trim(b, e, beg, i); if (r.first < r.second) { fn(&b[r.first], &b[r.second]); } } } inline stream_line_reader::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) {} inline const char *stream_line_reader::ptr() const { if (glowable_buffer_.empty()) { return fixed_buffer_; } else { return glowable_buffer_.data(); } } inline size_t stream_line_reader::size() const { if (glowable_buffer_.empty()) { return fixed_buffer_used_size_; } else { return glowable_buffer_.size(); } } inline bool stream_line_reader::end_with_crlf() const { auto end = ptr() + size(); return size() >= 2 && end[-2] == '\r' && end[-1] == '\n'; } inline bool stream_line_reader::getline() { fixed_buffer_used_size_ = 0; glowable_buffer_.clear(); for (size_t i = 0;; i++) { char byte; auto n = strm_.read(&byte, 1); if (n < 0) { return false; } else if (n == 0) { if (i == 0) { return false; } else { break; } } append(byte); if (byte == '\n') { break; } } return true; } inline void stream_line_reader::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; } } inline int close_socket(socket_t sock) { #ifdef _WIN32 return closesocket(sock); #else return close(sock); #endif } template inline ssize_t handle_EINTR(T fn) { ssize_t res = false; while (true) { res = fn(); if (res < 0 && errno == EINTR) { continue; } break; } return res; } inline ssize_t read_socket(socket_t sock, void *ptr, size_t size, int flags) { return handle_EINTR([&]() { return recv(sock, #ifdef _WIN32 static_cast(ptr), static_cast(size), #else ptr, size, #endif flags); }); } inline ssize_t send_socket(socket_t sock, const void *ptr, size_t size, int flags) { return handle_EINTR([&]() { return send(sock, #ifdef _WIN32 static_cast(ptr), static_cast(size), #else ptr, size, #endif flags); }); } inline ssize_t select_read(socket_t sock, time_t sec, time_t usec) { #ifdef CPPHTTPLIB_USE_POLL struct pollfd pfd_read; pfd_read.fd = sock; pfd_read.events = POLLIN; auto timeout = static_cast(sec * 1000 + usec / 1000); return handle_EINTR([&]() { return poll(&pfd_read, 1, timeout); }); #else #ifndef _WIN32 if (sock >= FD_SETSIZE) { return 1; } #endif fd_set fds; FD_ZERO(&fds); FD_SET(sock, &fds); timeval tv; tv.tv_sec = static_cast(sec); tv.tv_usec = static_cast(usec); return handle_EINTR([&]() { return select(static_cast(sock + 1), &fds, nullptr, nullptr, &tv); }); #endif } inline ssize_t select_write(socket_t sock, time_t sec, time_t usec) { #ifdef CPPHTTPLIB_USE_POLL struct pollfd pfd_read; pfd_read.fd = sock; pfd_read.events = POLLOUT; auto timeout = static_cast(sec * 1000 + usec / 1000); return handle_EINTR([&]() { return poll(&pfd_read, 1, timeout); }); #else #ifndef _WIN32 if (sock >= FD_SETSIZE) { return 1; } #endif fd_set fds; FD_ZERO(&fds); FD_SET(sock, &fds); timeval tv; tv.tv_sec = static_cast(sec); tv.tv_usec = static_cast(usec); return handle_EINTR([&]() { return select(static_cast(sock + 1), nullptr, &fds, nullptr, &tv); }); #endif } inline Error wait_until_socket_is_ready(socket_t sock, time_t sec, time_t usec) { #ifdef CPPHTTPLIB_USE_POLL struct pollfd pfd_read; pfd_read.fd = sock; pfd_read.events = POLLIN | POLLOUT; auto timeout = static_cast(sec * 1000 + usec / 1000); auto poll_res = handle_EINTR([&]() { return poll(&pfd_read, 1, timeout); }); if (poll_res == 0) { return Error::ConnectionTimeout; } if (poll_res > 0 && pfd_read.revents & (POLLIN | POLLOUT)) { int error = 0; socklen_t len = sizeof(error); auto res = getsockopt(sock, SOL_SOCKET, SO_ERROR, reinterpret_cast(&error), &len); auto successful = res >= 0 && !error; return successful ? Error::Success : Error::Connection; } return Error::Connection; #else #ifndef _WIN32 if (sock >= FD_SETSIZE) { return Error::Connection; } #endif fd_set fdsr; FD_ZERO(&fdsr); FD_SET(sock, &fdsr); auto fdsw = fdsr; auto fdse = fdsr; timeval tv; tv.tv_sec = static_cast(sec); tv.tv_usec = static_cast(usec); auto ret = handle_EINTR([&]() { return select(static_cast(sock + 1), &fdsr, &fdsw, &fdse, &tv); }); if (ret == 0) { return Error::ConnectionTimeout; } if (ret > 0 && (FD_ISSET(sock, &fdsr) || FD_ISSET(sock, &fdsw))) { int error = 0; socklen_t len = sizeof(error); auto res = getsockopt(sock, SOL_SOCKET, SO_ERROR, reinterpret_cast(&error), &len); auto successful = res >= 0 && !error; return successful ? Error::Success : Error::Connection; } return Error::Connection; #endif } inline bool is_socket_alive(socket_t sock) { const auto val = detail::select_read(sock, 0, 0); if (val == 0) { return true; } else if (val < 0 && errno == EBADF) { return false; } char buf[1]; return detail::read_socket(sock, &buf[0], sizeof(buf), MSG_PEEK) > 0; } class SocketStream : public Stream { public: SocketStream(socket_t sock, time_t read_timeout_sec, time_t read_timeout_usec, time_t write_timeout_sec, time_t write_timeout_usec); ~SocketStream() override; bool is_readable() const override; bool is_writable() const override; ssize_t read(char *ptr, size_t size) override; ssize_t write(const char *ptr, size_t size) override; void get_remote_ip_and_port(std::string &ip, int &port) const override; socket_t socket() const override; private: socket_t sock_; time_t read_timeout_sec_; time_t read_timeout_usec_; time_t write_timeout_sec_; time_t write_timeout_usec_; std::vector read_buff_; size_t read_buff_off_ = 0; size_t read_buff_content_size_ = 0; static const size_t read_buff_size_ = 1024 * 4; }; #ifdef CPPHTTPLIB_OPENSSL_SUPPORT class SSLSocketStream : public Stream { public: SSLSocketStream(socket_t sock, SSL *ssl, time_t read_timeout_sec, time_t read_timeout_usec, time_t write_timeout_sec, time_t write_timeout_usec); ~SSLSocketStream() override; bool is_readable() const override; bool is_writable() const override; ssize_t read(char *ptr, size_t size) override; ssize_t write(const char *ptr, size_t size) override; void get_remote_ip_and_port(std::string &ip, int &port) const override; socket_t socket() const override; private: socket_t sock_; SSL *ssl_; time_t read_timeout_sec_; time_t read_timeout_usec_; time_t write_timeout_sec_; time_t write_timeout_usec_; }; #endif inline bool keep_alive(socket_t sock, time_t keep_alive_timeout_sec) { using namespace std::chrono; auto start = steady_clock::now(); while (true) { auto val = select_read(sock, 0, 10000); if (val < 0) { return false; } else if (val == 0) { auto current = steady_clock::now(); auto duration = duration_cast(current - start); auto timeout = keep_alive_timeout_sec * 1000; if (duration.count() > timeout) { return false; } std::this_thread::sleep_for(std::chrono::milliseconds(1)); } else { return true; } } } template inline bool process_server_socket_core(const std::atomic &svr_sock, socket_t sock, size_t keep_alive_max_count, time_t keep_alive_timeout_sec, T callback) { assert(keep_alive_max_count > 0); auto ret = false; auto count = keep_alive_max_count; while (svr_sock != INVALID_SOCKET && count > 0 && keep_alive(sock, keep_alive_timeout_sec)) { auto close_connection = count == 1; auto connection_closed = false; ret = callback(close_connection, connection_closed); if (!ret || connection_closed) { break; } count--; } return ret; } template inline bool process_server_socket(const std::atomic &svr_sock, socket_t sock, size_t keep_alive_max_count, time_t keep_alive_timeout_sec, time_t read_timeout_sec, time_t read_timeout_usec, time_t write_timeout_sec, time_t write_timeout_usec, T callback) { return process_server_socket_core( svr_sock, sock, keep_alive_max_count, keep_alive_timeout_sec, [&](bool close_connection, bool &connection_closed) { SocketStream strm(sock, read_timeout_sec, read_timeout_usec, write_timeout_sec, write_timeout_usec); return callback(strm, close_connection, connection_closed); }); } inline bool process_client_socket(socket_t sock, time_t read_timeout_sec, time_t read_timeout_usec, time_t write_timeout_sec, time_t write_timeout_usec, std::function callback) { SocketStream strm(sock, read_timeout_sec, read_timeout_usec, write_timeout_sec, write_timeout_usec); return callback(strm); } inline int shutdown_socket(socket_t sock) { #ifdef _WIN32 return shutdown(sock, SD_BOTH); #else return shutdown(sock, SHUT_RDWR); #endif } template socket_t create_socket(const char *host, const char *ip, int port, int address_family, int socket_flags, bool tcp_nodelay, SocketOptions socket_options, BindOrConnect bind_or_connect) { // Get address info const char *node = nullptr; struct addrinfo hints; struct addrinfo *result; memset(&hints, 0, sizeof(struct addrinfo)); hints.ai_socktype = SOCK_STREAM; hints.ai_protocol = 0; if (ip[0] != '\0') { node = ip; // Ask getaddrinfo to convert IP in c-string to address hints.ai_family = AF_UNSPEC; hints.ai_flags = AI_NUMERICHOST; } else { node = host; hints.ai_family = address_family; hints.ai_flags = socket_flags; } auto service = std::to_string(port); if (getaddrinfo(node, service.c_str(), &hints, &result)) { #if defined __linux__ && !defined __ANDROID__ res_init(); #endif return INVALID_SOCKET; } for (auto rp = result; rp; rp = rp->ai_next) { // Create a socket #ifdef _WIN32 auto sock = WSASocketW(rp->ai_family, rp->ai_socktype, rp->ai_protocol, nullptr, 0, WSA_FLAG_NO_HANDLE_INHERIT | WSA_FLAG_OVERLAPPED); /** * Since the WSA_FLAG_NO_HANDLE_INHERIT is only supported on Windows 7 SP1 * and above the socket creation fails on older Windows Systems. * * Let's try to create a socket the old way in this case. * * Reference: * https://docs.microsoft.com/en-us/windows/win32/api/winsock2/nf-winsock2-wsasocketa * * WSA_FLAG_NO_HANDLE_INHERIT: * This flag is supported on Windows 7 with SP1, Windows Server 2008 R2 with * SP1, and later * */ if (sock == INVALID_SOCKET) { sock = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol); } #else auto sock = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol); #endif if (sock == INVALID_SOCKET) { continue; } #ifndef _WIN32 if (fcntl(sock, F_SETFD, FD_CLOEXEC) == -1) { continue; } #endif if (tcp_nodelay) { int yes = 1; setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, reinterpret_cast(&yes), sizeof(yes)); } if (socket_options) { socket_options(sock); } if (rp->ai_family == AF_INET6) { int no = 0; setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY, reinterpret_cast(&no), sizeof(no)); } // bind or connect if (bind_or_connect(sock, *rp)) { freeaddrinfo(result); return sock; } close_socket(sock); } freeaddrinfo(result); return INVALID_SOCKET; } inline void set_nonblocking(socket_t sock, bool nonblocking) { #ifdef _WIN32 auto flags = nonblocking ? 1UL : 0UL; ioctlsocket(sock, FIONBIO, &flags); #else auto flags = fcntl(sock, F_GETFL, 0); fcntl(sock, F_SETFL, nonblocking ? (flags | O_NONBLOCK) : (flags & (~O_NONBLOCK))); #endif } inline bool is_connection_error() { #ifdef _WIN32 return WSAGetLastError() != WSAEWOULDBLOCK; #else return errno != EINPROGRESS; #endif } inline bool bind_ip_address(socket_t sock, const char *host) { struct addrinfo hints; struct addrinfo *result; memset(&hints, 0, sizeof(struct addrinfo)); hints.ai_family = AF_UNSPEC; hints.ai_socktype = SOCK_STREAM; hints.ai_protocol = 0; if (getaddrinfo(host, "0", &hints, &result)) { return false; } auto ret = false; for (auto rp = result; rp; rp = rp->ai_next) { const auto &ai = *rp; if (!::bind(sock, ai.ai_addr, static_cast(ai.ai_addrlen))) { ret = true; break; } } freeaddrinfo(result); return ret; } #if !defined _WIN32 && !defined ANDROID #define USE_IF2IP #endif #ifdef USE_IF2IP inline std::string if2ip(const std::string &ifn) { struct ifaddrs *ifap; getifaddrs(&ifap); for (auto ifa = ifap; ifa; ifa = ifa->ifa_next) { if (ifa->ifa_addr && ifn == ifa->ifa_name) { if (ifa->ifa_addr->sa_family == AF_INET) { auto sa = reinterpret_cast(ifa->ifa_addr); char buf[INET_ADDRSTRLEN]; if (inet_ntop(AF_INET, &sa->sin_addr, buf, INET_ADDRSTRLEN)) { freeifaddrs(ifap); return std::string(buf, INET_ADDRSTRLEN); } } } } freeifaddrs(ifap); return std::string(); } #endif inline socket_t create_client_socket( const char *host, const char *ip, int port, int address_family, bool tcp_nodelay, SocketOptions socket_options, time_t connection_timeout_sec, time_t connection_timeout_usec, time_t read_timeout_sec, time_t read_timeout_usec, time_t write_timeout_sec, time_t write_timeout_usec, const std::string &intf, Error &error) { auto sock = create_socket( host, ip, port, address_family, 0, tcp_nodelay, std::move(socket_options), [&](socket_t sock2, struct addrinfo &ai) -> bool { if (!intf.empty()) { #ifdef USE_IF2IP auto ip = if2ip(intf); if (ip.empty()) { ip = intf; } if (!bind_ip_address(sock2, ip.c_str())) { error = Error::BindIPAddress; return false; } #endif } set_nonblocking(sock2, true); auto ret = ::connect(sock2, ai.ai_addr, static_cast(ai.ai_addrlen)); if (ret < 0) { if (is_connection_error()) { error = Error::Connection; return false; } error = wait_until_socket_is_ready(sock2, connection_timeout_sec, connection_timeout_usec); if (error != Error::Success) { return false; } } set_nonblocking(sock2, false); { #ifdef _WIN32 auto timeout = static_cast(read_timeout_sec * 1000 + read_timeout_usec / 1000); setsockopt(sock2, SOL_SOCKET, SO_RCVTIMEO, (char *)&timeout, sizeof(timeout)); #else timeval tv; tv.tv_sec = static_cast(read_timeout_sec); tv.tv_usec = static_cast(read_timeout_usec); setsockopt(sock2, SOL_SOCKET, SO_RCVTIMEO, (char *)&tv, sizeof(tv)); #endif } { #ifdef _WIN32 auto timeout = static_cast(write_timeout_sec * 1000 + write_timeout_usec / 1000); setsockopt(sock2, SOL_SOCKET, SO_SNDTIMEO, (char *)&timeout, sizeof(timeout)); #else timeval tv; tv.tv_sec = static_cast(write_timeout_sec); tv.tv_usec = static_cast(write_timeout_usec); setsockopt(sock2, SOL_SOCKET, SO_SNDTIMEO, (char *)&tv, sizeof(tv)); #endif } error = Error::Success; return true; }); if (sock != INVALID_SOCKET) { error = Error::Success; } else { if (error == Error::Success) { error = Error::Connection; } } return sock; } inline bool get_remote_ip_and_port(const struct sockaddr_storage &addr, socklen_t addr_len, std::string &ip, int &port) { if (addr.ss_family == AF_INET) { port = ntohs(reinterpret_cast(&addr)->sin_port); } else if (addr.ss_family == AF_INET6) { port = ntohs(reinterpret_cast(&addr)->sin6_port); } else { return false; } std::array ipstr{}; if (getnameinfo(reinterpret_cast(&addr), addr_len, ipstr.data(), static_cast(ipstr.size()), nullptr, 0, NI_NUMERICHOST)) { return false; } ip = ipstr.data(); return true; } inline void get_remote_ip_and_port(socket_t sock, std::string &ip, int &port) { struct sockaddr_storage addr; socklen_t addr_len = sizeof(addr); if (!getpeername(sock, reinterpret_cast(&addr), &addr_len)) { get_remote_ip_and_port(addr, addr_len, ip, port); } } inline constexpr unsigned int str2tag_core(const char *s, size_t l, unsigned int h) { return (l == 0) ? h : str2tag_core(s + 1, l - 1, (h * 33) ^ static_cast(*s)); } inline unsigned int str2tag(const std::string &s) { return str2tag_core(s.data(), s.size(), 0); } namespace udl { inline constexpr unsigned int operator"" _t(const char *s, size_t l) { return str2tag_core(s, l, 0); } } // namespace udl inline const char * find_content_type(const std::string &path, const std::map &user_data) { auto ext = file_extension(path); auto it = user_data.find(ext); if (it != user_data.end()) { return it->second.c_str(); } using udl::operator"" _t; switch (str2tag(ext)) { default: return nullptr; case "css"_t: return "text/css"; case "csv"_t: return "text/csv"; case "txt"_t: return "text/plain"; case "vtt"_t: return "text/vtt"; case "htm"_t: case "html"_t: return "text/html"; case "apng"_t: return "image/apng"; case "avif"_t: return "image/avif"; case "bmp"_t: return "image/bmp"; case "gif"_t: return "image/gif"; case "png"_t: return "image/png"; case "svg"_t: return "image/svg+xml"; case "webp"_t: return "image/webp"; case "ico"_t: return "image/x-icon"; case "tif"_t: return "image/tiff"; case "tiff"_t: return "image/tiff"; case "jpg"_t: case "jpeg"_t: return "image/jpeg"; case "mp4"_t: return "video/mp4"; case "mpeg"_t: return "video/mpeg"; case "webm"_t: return "video/webm"; case "mp3"_t: return "audio/mp3"; case "mpga"_t: return "audio/mpeg"; case "weba"_t: return "audio/webm"; case "wav"_t: return "audio/wave"; case "otf"_t: return "font/otf"; case "ttf"_t: return "font/ttf"; case "woff"_t: return "font/woff"; case "woff2"_t: return "font/woff2"; case "7z"_t: return "application/x-7z-compressed"; case "atom"_t: return "application/atom+xml"; case "pdf"_t: return "application/pdf"; case "js"_t: case "mjs"_t: return "application/javascript"; case "json"_t: return "application/json"; case "rss"_t: return "application/rss+xml"; case "tar"_t: return "application/x-tar"; case "xht"_t: case "xhtml"_t: return "application/xhtml+xml"; case "xslt"_t: return "application/xslt+xml"; case "xml"_t: return "application/xml"; case "gz"_t: return "application/gzip"; case "zip"_t: return "application/zip"; case "wasm"_t: return "application/wasm"; } } inline const char *status_message(int status) { switch (status) { case 100: return "Continue"; case 101: return "Switching Protocol"; case 102: return "Processing"; case 103: return "Early Hints"; case 200: return "OK"; case 201: return "Created"; case 202: return "Accepted"; case 203: return "Non-Authoritative Information"; case 204: return "No Content"; case 205: return "Reset Content"; case 206: return "Partial Content"; case 207: return "Multi-Status"; case 208: return "Already Reported"; case 226: return "IM Used"; case 300: return "Multiple Choice"; case 301: return "Moved Permanently"; case 302: return "Found"; case 303: return "See Other"; case 304: return "Not Modified"; case 305: return "Use Proxy"; case 306: return "unused"; case 307: return "Temporary Redirect"; case 308: return "Permanent Redirect"; case 400: return "Bad Request"; case 401: return "Unauthorized"; case 402: return "Payment Required"; case 403: return "Forbidden"; case 404: return "Not Found"; case 405: return "Method Not Allowed"; case 406: return "Not Acceptable"; case 407: return "Proxy Authentication Required"; case 408: return "Request Timeout"; case 409: return "Conflict"; case 410: return "Gone"; case 411: return "Length Required"; case 412: return "Precondition Failed"; case 413: return "Payload Too Large"; case 414: return "URI Too Long"; case 415: return "Unsupported Media Type"; case 416: return "Range Not Satisfiable"; case 417: return "Expectation Failed"; case 418: return "I'm a teapot"; case 421: return "Misdirected Request"; case 422: return "Unprocessable Entity"; case 423: return "Locked"; case 424: return "Failed Dependency"; case 425: return "Too Early"; case 426: return "Upgrade Required"; case 428: return "Precondition Required"; case 429: return "Too Many Requests"; case 431: return "Request Header Fields Too Large"; case 451: return "Unavailable For Legal Reasons"; case 501: return "Not Implemented"; case 502: return "Bad Gateway"; case 503: return "Service Unavailable"; case 504: return "Gateway Timeout"; case 505: return "HTTP Version Not Supported"; case 506: return "Variant Also Negotiates"; case 507: return "Insufficient Storage"; case 508: return "Loop Detected"; case 510: return "Not Extended"; case 511: return "Network Authentication Required"; default: case 500: return "Internal Server Error"; } } inline bool can_compress_content_type(const std::string &content_type) { return (!content_type.rfind("text/", 0) && content_type != "text/event-stream") || content_type == "image/svg+xml" || content_type == "application/javascript" || content_type == "application/json" || content_type == "application/xml" || content_type == "application/protobuf" || content_type == "application/xhtml+xml"; } inline EncodingType encoding_type(const Request &req, const Response &res) { auto ret = detail::can_compress_content_type(res.get_header_value("Content-Type")); if (!ret) { return EncodingType::None; } const auto &s = req.get_header_value("Accept-Encoding"); (void)(s); #ifdef CPPHTTPLIB_BROTLI_SUPPORT // TODO: 'Accept-Encoding' has br, not br;q=0 ret = s.find("br") != std::string::npos; if (ret) { return EncodingType::Brotli; } #endif #ifdef CPPHTTPLIB_ZLIB_SUPPORT // TODO: 'Accept-Encoding' has gzip, not gzip;q=0 ret = s.find("gzip") != std::string::npos; if (ret) { return EncodingType::Gzip; } #endif return EncodingType::None; } inline bool nocompressor::compress(const char *data, size_t data_length, bool /*last*/, Callback callback) { if (!data_length) { return true; } return callback(data, data_length); } #ifdef CPPHTTPLIB_ZLIB_SUPPORT inline gzip_compressor::gzip_compressor() { std::memset(&strm_, 0, sizeof(strm_)); strm_.zalloc = Z_NULL; strm_.zfree = Z_NULL; strm_.opaque = Z_NULL; is_valid_ = deflateInit2(&strm_, Z_DEFAULT_COMPRESSION, Z_DEFLATED, 31, 8, Z_DEFAULT_STRATEGY) == Z_OK; } inline gzip_compressor::~gzip_compressor() { deflateEnd(&strm_); } inline bool gzip_compressor::compress(const char *data, size_t data_length, bool last, Callback callback) { assert(is_valid_); do { constexpr size_t max_avail_in = (std::numeric_limits::max)(); strm_.avail_in = static_cast( (std::min)(data_length, max_avail_in)); strm_.next_in = const_cast(reinterpret_cast(data)); data_length -= strm_.avail_in; data += strm_.avail_in; auto flush = (last && data_length == 0) ? Z_FINISH : Z_NO_FLUSH; int ret = Z_OK; std::array buff{}; do { strm_.avail_out = static_cast(buff.size()); strm_.next_out = reinterpret_cast(buff.data()); ret = deflate(&strm_, flush); if (ret == Z_STREAM_ERROR) { return false; } if (!callback(buff.data(), buff.size() - strm_.avail_out)) { return false; } } while (strm_.avail_out == 0); assert((flush == Z_FINISH && ret == Z_STREAM_END) || (flush == Z_NO_FLUSH && ret == Z_OK)); assert(strm_.avail_in == 0); } while (data_length > 0); return true; } inline gzip_decompressor::gzip_decompressor() { std::memset(&strm_, 0, sizeof(strm_)); strm_.zalloc = Z_NULL; strm_.zfree = Z_NULL; strm_.opaque = Z_NULL; // 15 is the value of wbits, which should be at the maximum possible value // to ensure that any gzip stream can be decoded. The offset of 32 specifies // that the stream type should be automatically detected either gzip or // deflate. is_valid_ = inflateInit2(&strm_, 32 + 15) == Z_OK; } inline gzip_decompressor::~gzip_decompressor() { inflateEnd(&strm_); } inline bool gzip_decompressor::is_valid() const { return is_valid_; } inline bool gzip_decompressor::decompress(const char *data, size_t data_length, Callback callback) { assert(is_valid_); int ret = Z_OK; do { constexpr size_t max_avail_in = (std::numeric_limits::max)(); strm_.avail_in = static_cast( (std::min)(data_length, max_avail_in)); strm_.next_in = const_cast(reinterpret_cast(data)); data_length -= strm_.avail_in; data += strm_.avail_in; std::array buff{}; while (strm_.avail_in > 0) { strm_.avail_out = static_cast(buff.size()); strm_.next_out = reinterpret_cast(buff.data()); auto prev_avail_in = strm_.avail_in; ret = inflate(&strm_, Z_NO_FLUSH); if (prev_avail_in - strm_.avail_in == 0) { return false; } assert(ret != Z_STREAM_ERROR); switch (ret) { case Z_NEED_DICT: case Z_DATA_ERROR: case Z_MEM_ERROR: inflateEnd(&strm_); return false; } if (!callback(buff.data(), buff.size() - strm_.avail_out)) { return false; } } if (ret != Z_OK && ret != Z_STREAM_END) return false; } while (data_length > 0); return true; } #endif #ifdef CPPHTTPLIB_BROTLI_SUPPORT inline brotli_compressor::brotli_compressor() { state_ = BrotliEncoderCreateInstance(nullptr, nullptr, nullptr); } inline brotli_compressor::~brotli_compressor() { BrotliEncoderDestroyInstance(state_); } inline bool brotli_compressor::compress(const char *data, size_t data_length, bool last, Callback callback) { std::array buff{}; auto operation = last ? BROTLI_OPERATION_FINISH : BROTLI_OPERATION_PROCESS; auto available_in = data_length; auto next_in = reinterpret_cast(data); for (;;) { if (last) { if (BrotliEncoderIsFinished(state_)) { break; } } else { if (!available_in) { break; } } auto available_out = buff.size(); auto next_out = buff.data(); if (!BrotliEncoderCompressStream(state_, operation, &available_in, &next_in, &available_out, &next_out, nullptr)) { return false; } auto output_bytes = buff.size() - available_out; if (output_bytes) { callback(reinterpret_cast(buff.data()), output_bytes); } } return true; } inline brotli_decompressor::brotli_decompressor() { decoder_s = BrotliDecoderCreateInstance(0, 0, 0); decoder_r = decoder_s ? BROTLI_DECODER_RESULT_NEEDS_MORE_INPUT : BROTLI_DECODER_RESULT_ERROR; } inline brotli_decompressor::~brotli_decompressor() { if (decoder_s) { BrotliDecoderDestroyInstance(decoder_s); } } inline bool brotli_decompressor::is_valid() const { return decoder_s; } inline bool brotli_decompressor::decompress(const char *data, size_t data_length, Callback callback) { if (decoder_r == BROTLI_DECODER_RESULT_SUCCESS || decoder_r == BROTLI_DECODER_RESULT_ERROR) { return 0; } const uint8_t *next_in = (const uint8_t *)data; size_t avail_in = data_length; size_t total_out; decoder_r = BROTLI_DECODER_RESULT_NEEDS_MORE_OUTPUT; std::array buff{}; while (decoder_r == BROTLI_DECODER_RESULT_NEEDS_MORE_OUTPUT) { char *next_out = buff.data(); size_t avail_out = buff.size(); decoder_r = BrotliDecoderDecompressStream( decoder_s, &avail_in, &next_in, &avail_out, reinterpret_cast(&next_out), &total_out); if (decoder_r == BROTLI_DECODER_RESULT_ERROR) { return false; } if (!callback(buff.data(), buff.size() - avail_out)) { return false; } } return decoder_r == BROTLI_DECODER_RESULT_SUCCESS || decoder_r == BROTLI_DECODER_RESULT_NEEDS_MORE_INPUT; } #endif inline bool has_header(const Headers &headers, const char *key) { return headers.find(key) != headers.end(); } inline const char *get_header_value(const Headers &headers, const char *key, size_t id, const char *def) { auto rng = headers.equal_range(key); auto it = rng.first; std::advance(it, static_cast(id)); if (it != rng.second) { return it->second.c_str(); } return def; } template inline bool parse_header(const char *beg, const char *end, T fn) { // Skip trailing spaces and tabs. while (beg < end && is_space_or_tab(end[-1])) { end--; } auto p = beg; while (p < end && *p != ':') { p++; } if (p == end) { return false; } auto key_end = p; if (*p++ != ':') { return false; } while (p < end && is_space_or_tab(*p)) { p++; } if (p < end) { fn(std::string(beg, key_end), std::string(p, end)); return true; } return false; } inline bool read_headers(Stream &strm, Headers &headers) { const auto bufsiz = 2048; char buf[bufsiz]; stream_line_reader line_reader(strm, buf, bufsiz); for (;;) { if (!line_reader.getline()) { return false; } // Check if the line ends with CRLF. auto line_terminator_len = 2; if (line_reader.end_with_crlf()) { // Blank line indicates end of headers. if (line_reader.size() == 2) { break; } #ifdef CPPHTTPLIB_ALLOW_LF_AS_LINE_TERMINATOR } else { // Blank line indicates end of headers. if (line_reader.size() == 1) { break; } line_terminator_len = 1; } #else } else { continue; // Skip invalid line. } #endif if (line_reader.size() > CPPHTTPLIB_HEADER_MAX_LENGTH) { return false; } // Exclude line terminator auto end = line_reader.ptr() + line_reader.size() - line_terminator_len; parse_header(line_reader.ptr(), end, [&](std::string &&key, std::string &&val) { headers.emplace(std::move(key), std::move(val)); }); } return true; } inline bool read_content_with_length(Stream &strm, uint64_t len, Progress progress, ContentReceiverWithProgress out) { char buf[CPPHTTPLIB_RECV_BUFSIZ]; uint64_t r = 0; while (r < len) { auto read_len = static_cast(len - r); auto n = strm.read(buf, (std::min)(read_len, CPPHTTPLIB_RECV_BUFSIZ)); if (n <= 0) { return false; } if (!out(buf, static_cast(n), r, len)) { return false; } r += static_cast(n); if (progress) { if (!progress(r, len)) { return false; } } } return true; } inline void skip_content_with_length(Stream &strm, uint64_t len) { char buf[CPPHTTPLIB_RECV_BUFSIZ]; uint64_t r = 0; while (r < len) { auto read_len = static_cast(len - r); auto n = strm.read(buf, (std::min)(read_len, CPPHTTPLIB_RECV_BUFSIZ)); if (n <= 0) { return; } r += static_cast(n); } } inline bool read_content_without_length(Stream &strm, ContentReceiverWithProgress out) { char buf[CPPHTTPLIB_RECV_BUFSIZ]; uint64_t r = 0; for (;;) { auto n = strm.read(buf, CPPHTTPLIB_RECV_BUFSIZ); if (n < 0) { return false; } else if (n == 0) { return true; } if (!out(buf, static_cast(n), r, 0)) { return false; } r += static_cast(n); } return true; } inline bool read_content_chunked(Stream &strm, ContentReceiverWithProgress out) { const auto bufsiz = 16; char buf[bufsiz]; stream_line_reader line_reader(strm, buf, bufsiz); if (!line_reader.getline()) { return false; } unsigned long chunk_len; while (true) { char *end_ptr; chunk_len = std::strtoul(line_reader.ptr(), &end_ptr, 16); if (end_ptr == line_reader.ptr()) { return false; } if (chunk_len == ULONG_MAX) { return false; } if (chunk_len == 0) { break; } if (!read_content_with_length(strm, chunk_len, nullptr, out)) { return false; } if (!line_reader.getline()) { return false; } if (strcmp(line_reader.ptr(), "\r\n")) { break; } if (!line_reader.getline()) { return false; } } if (chunk_len == 0) { // Reader terminator after chunks if (!line_reader.getline() || strcmp(line_reader.ptr(), "\r\n")) return false; } return true; } inline bool is_chunked_transfer_encoding(const Headers &headers) { return !strcasecmp(get_header_value(headers, "Transfer-Encoding", 0, ""), "chunked"); } template bool prepare_content_receiver(T &x, int &status, ContentReceiverWithProgress receiver, bool decompress, U callback) { if (decompress) { std::string encoding = x.get_header_value("Content-Encoding"); std::unique_ptr decompressor; if (encoding == "gzip" || encoding == "deflate") { #ifdef CPPHTTPLIB_ZLIB_SUPPORT decompressor = detail::make_unique(); #else status = 415; return false; #endif } else if (encoding.find("br") != std::string::npos) { #ifdef CPPHTTPLIB_BROTLI_SUPPORT decompressor = detail::make_unique(); #else status = 415; return false; #endif } if (decompressor) { if (decompressor->is_valid()) { ContentReceiverWithProgress out = [&](const char *buf, size_t n, uint64_t off, uint64_t len) { return decompressor->decompress(buf, n, [&](const char *buf2, size_t n2) { return receiver(buf2, n2, off, len); }); }; return callback(std::move(out)); } else { status = 500; return false; } } } ContentReceiverWithProgress out = [&](const char *buf, size_t n, uint64_t off, uint64_t len) { return receiver(buf, n, off, len); }; return callback(std::move(out)); } template bool read_content(Stream &strm, T &x, size_t payload_max_length, int &status, Progress progress, ContentReceiverWithProgress receiver, bool decompress) { return prepare_content_receiver( x, status, std::move(receiver), decompress, [&](const ContentReceiverWithProgress &out) { auto ret = true; auto exceed_payload_max_length = false; if (is_chunked_transfer_encoding(x.headers)) { ret = read_content_chunked(strm, out); } else if (!has_header(x.headers, "Content-Length")) { ret = read_content_without_length(strm, out); } else { auto len = get_header_value(x.headers, "Content-Length"); if (len > payload_max_length) { exceed_payload_max_length = true; skip_content_with_length(strm, len); ret = false; } else if (len > 0) { ret = read_content_with_length(strm, len, std::move(progress), out); } } if (!ret) { status = exceed_payload_max_length ? 413 : 400; } return ret; }); } inline ssize_t write_headers(Stream &strm, const Headers &headers) { ssize_t write_len = 0; for (const auto &x : headers) { auto len = strm.write_format("%s: %s\r\n", x.first.c_str(), x.second.c_str()); if (len < 0) { return len; } write_len += len; } auto len = strm.write("\r\n"); if (len < 0) { return len; } write_len += len; return write_len; } inline bool write_data(Stream &strm, const char *d, size_t l) { size_t offset = 0; while (offset < l) { auto length = strm.write(d + offset, l - offset); if (length < 0) { return false; } offset += static_cast(length); } return true; } template inline bool write_content(Stream &strm, const ContentProvider &content_provider, size_t offset, size_t length, T is_shutting_down, Error &error) { size_t end_offset = offset + length; auto ok = true; DataSink data_sink; data_sink.write = [&](const char *d, size_t l) -> bool { if (ok) { if (write_data(strm, d, l)) { offset += l; } else { ok = false; } } return ok; }; data_sink.is_writable = [&](void) { return ok && strm.is_writable(); }; while (offset < end_offset && !is_shutting_down()) { if (!content_provider(offset, end_offset - offset, data_sink)) { error = Error::Canceled; return false; } if (!ok) { error = Error::Write; return false; } } error = Error::Success; return true; } template inline bool write_content(Stream &strm, const ContentProvider &content_provider, size_t offset, size_t length, const T &is_shutting_down) { auto error = Error::Success; return write_content(strm, content_provider, offset, length, is_shutting_down, error); } template inline bool write_content_without_length(Stream &strm, const ContentProvider &content_provider, const T &is_shutting_down) { size_t offset = 0; auto data_available = true; auto ok = true; DataSink data_sink; data_sink.write = [&](const char *d, size_t l) -> bool { if (ok) { offset += l; if (!write_data(strm, d, l)) { ok = false; } } return ok; }; data_sink.done = [&](void) { data_available = false; }; data_sink.is_writable = [&](void) { return ok && strm.is_writable(); }; while (data_available && !is_shutting_down()) { if (!content_provider(offset, 0, data_sink)) { return false; } if (!ok) { return false; } } return true; } template inline bool write_content_chunked(Stream &strm, const ContentProvider &content_provider, const T &is_shutting_down, U &compressor, Error &error) { size_t offset = 0; auto data_available = true; auto ok = true; DataSink data_sink; data_sink.write = [&](const char *d, size_t l) -> bool { if (ok) { data_available = l > 0; offset += l; std::string payload; if (compressor.compress(d, l, false, [&](const char *data, size_t data_len) { payload.append(data, data_len); return true; })) { if (!payload.empty()) { // Emit chunked response header and footer for each chunk auto chunk = from_i_to_hex(payload.size()) + "\r\n" + payload + "\r\n"; if (!write_data(strm, chunk.data(), chunk.size())) { ok = false; } } } else { ok = false; } } return ok; }; data_sink.done = [&](void) { if (!ok) { return; } data_available = false; std::string payload; if (!compressor.compress(nullptr, 0, true, [&](const char *data, size_t data_len) { payload.append(data, data_len); return true; })) { ok = false; return; } if (!payload.empty()) { // Emit chunked response header and footer for each chunk auto chunk = from_i_to_hex(payload.size()) + "\r\n" + payload + "\r\n"; if (!write_data(strm, chunk.data(), chunk.size())) { ok = false; return; } } static const std::string done_marker("0\r\n\r\n"); if (!write_data(strm, done_marker.data(), done_marker.size())) { ok = false; } }; data_sink.is_writable = [&](void) { return ok && strm.is_writable(); }; while (data_available && !is_shutting_down()) { if (!content_provider(offset, 0, data_sink)) { error = Error::Canceled; return false; } if (!ok) { error = Error::Write; return false; } } error = Error::Success; return true; } template inline bool write_content_chunked(Stream &strm, const ContentProvider &content_provider, const T &is_shutting_down, U &compressor) { auto error = Error::Success; return write_content_chunked(strm, content_provider, is_shutting_down, compressor, error); } template inline bool redirect(T &cli, Request &req, Response &res, const std::string &path, const std::string &location, Error &error) { Request new_req = req; new_req.path = path; new_req.redirect_count_ -= 1; if (res.status == 303 && (req.method != "GET" && req.method != "HEAD")) { new_req.method = "GET"; new_req.body.clear(); new_req.headers.clear(); } Response new_res; auto ret = cli.send(new_req, new_res, error); if (ret) { req = new_req; res = new_res; res.location = location; } return ret; } inline std::string params_to_query_str(const Params ¶ms) { std::string query; for (auto it = params.begin(); it != params.end(); ++it) { if (it != params.begin()) { query += "&"; } query += it->first; query += "="; query += encode_query_param(it->second); } return query; } inline void parse_query_text(const std::string &s, Params ¶ms) { std::set cache; split(s.data(), s.data() + s.size(), '&', [&](const char *b, const char *e) { std::string kv(b, e); if (cache.find(kv) != cache.end()) { return; } cache.insert(kv); std::string key; std::string val; split(b, e, '=', [&](const char *b2, const char *e2) { if (key.empty()) { key.assign(b2, e2); } else { val.assign(b2, e2); } }); if (!key.empty()) { params.emplace(decode_url(key, true), decode_url(val, 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); if (boundary.length() >= 2 && boundary.front() == '"' && boundary.back() == '"') { boundary = boundary.substr(1, boundary.size() - 2); } return !boundary.empty(); } #ifdef CPPHTTPLIB_NO_EXCEPTIONS inline bool parse_range_header(const std::string &s, Ranges &ranges) { #else inline bool parse_range_header(const std::string &s, Ranges &ranges) try { #endif static Regex re_first_range(R"(bytes=(\d*-\d*(?:,\s*\d*-\d*)*))"); Match m; if (duckdb_re2::RegexMatch(s, m, re_first_range)) { auto pos = static_cast(m.position(1)); auto len = static_cast(m.length(1)); bool all_valid_ranges = true; split(&s[pos], &s[pos + len], ',', [&](const char *b, const char *e) { if (!all_valid_ranges) return; static Regex re_another_range(R"(\s*(\d*)-(\d*))"); Match cm; if (duckdb_re2::RegexMatch(b, e, cm, re_another_range)) { ssize_t first = -1; if (!cm.str(1).empty()) { first = static_cast(std::stoll(cm.str(1))); } ssize_t last = -1; if (!cm.str(2).empty()) { last = static_cast(std::stoll(cm.str(2))); } if (first != -1 && last != -1 && first > last) { all_valid_ranges = false; return; } ranges.emplace_back(std::make_pair(first, last)); } }); return all_valid_ranges; } return false; #ifdef CPPHTTPLIB_NO_EXCEPTIONS } #else } catch (...) { return false; } #endif class MultipartFormDataParser { public: MultipartFormDataParser() = default; void set_boundary(std::string &&boundary) { boundary_ = boundary; } bool is_valid() const { return is_valid_; } bool parse(const char *buf, size_t n, const ContentReceiver &content_callback, const MultipartContentHeader &header_callback) { static const Regex re_content_disposition( "^Content-Disposition:\\s*form-data;\\s*name=\"(.*?)\"(?:;\\s*filename=" "\"(.*?)\")?\\s*$", duckdb_re2::RegexOptions::CASE_INSENSITIVE); static const std::string dash_ = "--"; static const std::string crlf_ = "\r\n"; buf_append(buf, n); while (buf_size() > 0) { switch (state_) { case 0: { // Initial boundary auto pattern = dash_ + boundary_ + crlf_; if (pattern.size() > buf_size()) { return true; } if (!buf_start_with(pattern)) { return false; } buf_erase(pattern.size()); state_ = 1; break; } case 1: { // New entry clear_file_info(); state_ = 2; break; } case 2: { // Headers auto pos = buf_find(crlf_); if (pos > CPPHTTPLIB_HEADER_MAX_LENGTH) { return false; } while (pos < buf_size()) { // Empty line if (pos == 0) { if (!header_callback(file_)) { is_valid_ = false; return false; } buf_erase(crlf_.size()); state_ = 3; break; } static const std::string header_name = "content-type:"; const auto header = buf_head(pos); if (start_with_case_ignore(header, header_name)) { file_.content_type = trim_copy(header.substr(header_name.size())); } else { Match m; if (duckdb_re2::RegexMatch(header, m, re_content_disposition)) { file_.name = m[1]; file_.filename = m[2]; } } buf_erase(pos + crlf_.size()); pos = buf_find(crlf_); } if (state_ != 3) { return true; } break; } case 3: { // Body { auto pattern = crlf_ + dash_; if (pattern.size() > buf_size()) { return true; } auto pos = buf_find(pattern); if (!content_callback(buf_data(), pos)) { is_valid_ = false; return false; } buf_erase(pos); } { auto pattern = crlf_ + dash_ + boundary_; if (pattern.size() > buf_size()) { return true; } auto pos = buf_find(pattern); if (pos < buf_size()) { if (!content_callback(buf_data(), pos)) { is_valid_ = false; return false; } buf_erase(pos + pattern.size()); state_ = 4; } else { if (!content_callback(buf_data(), pattern.size())) { is_valid_ = false; return false; } buf_erase(pattern.size()); } } break; } case 4: { // Boundary if (crlf_.size() > buf_size()) { return true; } if (buf_start_with(crlf_)) { buf_erase(crlf_.size()); state_ = 1; } else { auto pattern = dash_ + crlf_; if (pattern.size() > buf_size()) { return true; } if (buf_start_with(pattern)) { buf_erase(pattern.size()); is_valid_ = true; state_ = 5; } else { return true; } } break; } case 5: { // Done is_valid_ = false; return false; } } } return true; } private: void clear_file_info() { file_.name.clear(); file_.filename.clear(); file_.content_type.clear(); } bool start_with_case_ignore(const std::string &a, const std::string &b) const { if (a.size() < b.size()) { return false; } for (size_t i = 0; i < b.size(); i++) { if (::tolower(a[i]) != ::tolower(b[i])) { return false; } } return true; } std::string boundary_; size_t state_ = 0; bool is_valid_ = false; MultipartFormData file_; // Buffer bool start_with(const std::string &a, size_t spos, size_t epos, const std::string &b) const { if (epos - spos < b.size()) { return false; } for (size_t i = 0; i < b.size(); i++) { if (a[i + spos] != b[i]) { return false; } } return true; } size_t buf_size() const { return buf_epos_ - buf_spos_; } const char *buf_data() const { return &buf_[buf_spos_]; } std::string buf_head(size_t l) const { return buf_.substr(buf_spos_, l); } bool buf_start_with(const std::string &s) const { return start_with(buf_, buf_spos_, buf_epos_, s); } size_t buf_find(const std::string &s) const { auto c = s.front(); size_t off = buf_spos_; while (off < buf_epos_) { auto pos = off; while (true) { if (pos == buf_epos_) { return buf_size(); } if (buf_[pos] == c) { break; } pos++; } auto remaining_size = buf_epos_ - pos; if (s.size() > remaining_size) { return buf_size(); } if (start_with(buf_, pos, buf_epos_, s)) { return pos - buf_spos_; } off = pos + 1; } return buf_size(); } void buf_append(const char *data, size_t n) { auto remaining_size = buf_size(); if (remaining_size > 0 && buf_spos_ > 0) { for (size_t i = 0; i < remaining_size; i++) { buf_[i] = buf_[buf_spos_ + i]; } } buf_spos_ = 0; buf_epos_ = remaining_size; if (remaining_size + n > buf_.size()) { buf_.resize(remaining_size + n); } for (size_t i = 0; i < n; i++) { buf_[buf_epos_ + i] = data[i]; } buf_epos_ += n; } void buf_erase(size_t size) { buf_spos_ += size; } std::string buf_; size_t buf_spos_ = 0; size_t buf_epos_ = 0; }; inline std::string to_lower(const char *beg, const char *end) { std::string out; auto it = beg; while (it != end) { out += static_cast(::tolower(*it)); it++; } return out; } inline std::string make_multipart_data_boundary() { static const char data[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"; // std::random_device might actually be deterministic on some // platforms, but due to lack of support in the c++ standard library, // doing better requires either some ugly hacks or breaking portability. std::random_device seed_gen; // Request 128 bits of entropy for initialization std::seed_seq seed_sequence{seed_gen(), seed_gen(), seed_gen(), seed_gen()}; std::mt19937 engine(seed_sequence); std::string result = "--cpp-httplib-multipart-data-"; for (auto i = 0; i < 16; i++) { result += data[engine() % (sizeof(data) - 1)]; } return result; } inline std::pair get_range_offset_and_length(const Request &req, size_t content_length, size_t index) { auto r = req.ranges[index]; if (r.first == -1 && r.second == -1) { return std::make_pair(0, content_length); } auto slen = static_cast(content_length); if (r.first == -1) { r.first = (std::max)(static_cast(0), slen - r.second); r.second = slen - 1; } if (r.second == -1) { r.second = slen - 1; } return std::make_pair(r.first, static_cast(r.second - r.first) + 1); } inline std::string make_content_range_header_field(size_t offset, size_t length, size_t content_length) { std::string field = "bytes "; field += std::to_string(offset); field += "-"; field += std::to_string(offset + length - 1); field += "/"; field += std::to_string(content_length); return field; } template bool process_multipart_ranges_data(const Request &req, Response &res, const std::string &boundary, const std::string &content_type, SToken stoken, CToken ctoken, Content content) { for (size_t i = 0; i < req.ranges.size(); i++) { ctoken("--"); stoken(boundary); ctoken("\r\n"); if (!content_type.empty()) { ctoken("Content-Type: "); stoken(content_type); ctoken("\r\n"); } auto offsets = get_range_offset_and_length(req, res.body.size(), i); auto offset = offsets.first; auto length = offsets.second; ctoken("Content-Range: "); stoken(make_content_range_header_field(offset, length, res.body.size())); ctoken("\r\n"); ctoken("\r\n"); if (!content(offset, length)) { return false; } ctoken("\r\n"); } ctoken("--"); stoken(boundary); ctoken("--\r\n"); return true; } inline bool make_multipart_ranges_data(const Request &req, Response &res, const std::string &boundary, const std::string &content_type, std::string &data) { return 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) { if (offset < res.body.size()) { data += res.body.substr(offset, length); return true; } return false; }); } inline size_t get_multipart_ranges_data_length(const Request &req, Response &res, const std::string &boundary, const std::string &content_type) { size_t data_length = 0; process_multipart_ranges_data( req, res, boundary, content_type, [&](const std::string &token) { data_length += token.size(); }, [&](const char *token) { data_length += strlen(token); }, [&](size_t /*offset*/, size_t length) { data_length += length; return true; }); return data_length; } template inline bool write_multipart_ranges_data(Stream &strm, const Request &req, Response &res, const std::string &boundary, const std::string &content_type, const T &is_shutting_down) { return process_multipart_ranges_data( req, res, boundary, content_type, [&](const std::string &token) { strm.write(token); }, [&](const char *token) { strm.write(token); }, [&](size_t offset, size_t length) { return write_content(strm, res.content_provider_, offset, length, is_shutting_down); }); } inline std::pair get_range_offset_and_length(const Request &req, const Response &res, size_t index) { auto r = req.ranges[index]; if (r.second == -1) { r.second = static_cast(res.content_length_) - 1; } return std::make_pair(r.first, r.second - r.first + 1); } inline bool expect_content(const Request &req) { if (req.method == "POST" || req.method == "PUT" || req.method == "PATCH" || req.method == "PRI" || req.method == "DELETE") { return true; } // TODO: check if Content-Length is set return false; } inline bool has_crlf(const char *s) { auto p = s; while (*p) { if (*p == '\r' || *p == '\n') { return true; } p++; } return false; } #ifdef CPPHTTPLIB_OPENSSL_SUPPORT template inline std::string message_digest(const std::string &s, Init init, Update update, Final final, size_t digest_length) { std::vector md(digest_length, 0); CTX ctx; init(&ctx); update(&ctx, s.data(), s.size()); final(md.data(), &ctx); std::stringstream ss; for (auto c : md) { ss << std::setfill('0') << std::setw(2) << std::hex << (unsigned int)c; } return ss.str(); } inline std::string MD5(const std::string &s) { return message_digest(s, MD5_Init, MD5_Update, MD5_Final, MD5_DIGEST_LENGTH); } inline std::string SHA_256(const std::string &s) { return message_digest(s, SHA256_Init, SHA256_Update, SHA256_Final, SHA256_DIGEST_LENGTH); } inline std::string SHA_512(const std::string &s) { return message_digest(s, SHA512_Init, SHA512_Update, SHA512_Final, SHA512_DIGEST_LENGTH); } #endif #ifdef _WIN32 #ifdef CPPHTTPLIB_OPENSSL_SUPPORT // NOTE: This code came up with the following stackoverflow post: // https://stackoverflow.com/questions/9507184/can-openssl-on-windows-use-the-system-certificate-store inline bool load_system_certs_on_windows(X509_STORE *store) { auto hStore = CertOpenSystemStoreW((HCRYPTPROV_LEGACY)NULL, L"ROOT"); if (!hStore) { return false; } PCCERT_CONTEXT pContext = NULL; while ((pContext = CertEnumCertificatesInStore(hStore, pContext)) != nullptr) { auto encoded_cert = static_cast(pContext->pbCertEncoded); auto x509 = d2i_X509(NULL, &encoded_cert, pContext->cbCertEncoded); if (x509) { X509_STORE_add_cert(store, x509); X509_free(x509); } } CertFreeCertificateContext(pContext); CertCloseStore(hStore, 0); return true; } #endif class WSInit { public: WSInit() { WSADATA wsaData; WSAStartup(0x0002, &wsaData); } ~WSInit() { WSACleanup(); } }; static WSInit wsinit_; #endif #ifdef CPPHTTPLIB_OPENSSL_SUPPORT inline std::pair make_digest_authentication_header( const Request &req, const std::map &auth, size_t cnonce_count, const std::string &cnonce, const std::string &username, const std::string &password, bool is_proxy = false) { std::string nc; { std::stringstream ss; ss << std::setfill('0') << std::setw(8) << std::hex << cnonce_count; nc = ss.str(); } std::string qop; if (auth.find("qop") != auth.end()) { qop = auth.at("qop"); if (qop.find("auth-int") != std::string::npos) { qop = "auth-int"; } else if (qop.find("auth") != std::string::npos) { qop = "auth"; } else { qop.clear(); } } std::string algo = "MD5"; if (auth.find("algorithm") != auth.end()) { algo = auth.at("algorithm"); } std::string response; { auto H = algo == "SHA-256" ? detail::SHA_256 : algo == "SHA-512" ? detail::SHA_512 : detail::MD5; auto A1 = username + ":" + auth.at("realm") + ":" + password; auto A2 = req.method + ":" + req.path; if (qop == "auth-int") { A2 += ":" + H(req.body); } if (qop.empty()) { response = H(H(A1) + ":" + auth.at("nonce") + ":" + H(A2)); } else { response = H(H(A1) + ":" + auth.at("nonce") + ":" + nc + ":" + cnonce + ":" + qop + ":" + H(A2)); } } auto opaque = (auth.find("opaque") != auth.end()) ? auth.at("opaque") : ""; auto field = "Digest username=\"" + username + "\", realm=\"" + auth.at("realm") + "\", nonce=\"" + auth.at("nonce") + "\", uri=\"" + req.path + "\", algorithm=" + algo + (qop.empty() ? ", response=\"" : ", qop=" + qop + ", nc=" + nc + ", cnonce=\"" + cnonce + "\", response=\"") + response + "\"" + (opaque.empty() ? "" : ", opaque=\"" + opaque + "\""); auto key = is_proxy ? "Proxy-Authorization" : "Authorization"; return std::make_pair(key, field); } #endif inline bool parse_www_authenticate(const Response &res, std::map &auth, bool is_proxy) { auto auth_key = is_proxy ? "Proxy-Authenticate" : "WWW-Authenticate"; if (res.has_header(auth_key)) { static Regex re(R"~((?:(?:,\s*)?(.+?)=(?:"(.*?)"|([^,]*))))~"); auto s = res.get_header_value(auth_key); auto pos = s.find(' '); if (pos != std::string::npos) { auto type = s.substr(0, pos); if (type == "Basic") { return false; } else if (type == "Digest") { s = s.substr(pos + 1); auto matches = duckdb_re2::RegexFindAll(s, re); for (auto &m : matches) { auto key = s.substr(static_cast(m.position(1)), static_cast(m.length(1))); auto val = m.length(2) > 0 ? s.substr(static_cast(m.position(2)), static_cast(m.length(2))) : s.substr(static_cast(m.position(3)), static_cast(m.length(3))); auth[key] = val; } return true; } } } return false; } // https://stackoverflow.com/questions/440133/how-do-i-create-a-random-alpha-numeric-string-in-c/440240#answer-440240 inline std::string random_string(size_t length) { auto randchar = []() -> char { const char charset[] = "0123456789" "ABCDEFGHIJKLMNOPQRSTUVWXYZ" "abcdefghijklmnopqrstuvwxyz"; const size_t max_index = (sizeof(charset) - 1); return charset[static_cast(std::rand()) % max_index]; }; std::string str(length, 0); std::generate_n(str.begin(), length, randchar); return str; } class ContentProviderAdapter { public: explicit ContentProviderAdapter( ContentProviderWithoutLength &&content_provider) : content_provider_(content_provider) {} bool operator()(size_t offset, size_t, DataSink &sink) { return content_provider_(offset, sink); } private: ContentProviderWithoutLength content_provider_; }; } // namespace detail inline std::string hosted_at(const char *hostname) { std::vector addrs; hosted_at(hostname, addrs); if (addrs.empty()) { return std::string(); } return addrs[0]; } inline void hosted_at(const char *hostname, std::vector &addrs) { struct addrinfo hints; struct addrinfo *result; memset(&hints, 0, sizeof(struct addrinfo)); hints.ai_family = AF_UNSPEC; hints.ai_socktype = SOCK_STREAM; hints.ai_protocol = 0; if (getaddrinfo(hostname, nullptr, &hints, &result)) { #if defined __linux__ && !defined __ANDROID__ res_init(); #endif return; } for (auto rp = result; rp; rp = rp->ai_next) { const auto &addr = *reinterpret_cast(rp->ai_addr); std::string ip; int dummy = -1; if (detail::get_remote_ip_and_port(addr, sizeof(struct sockaddr_storage), ip, dummy)) { addrs.push_back(ip); } } } inline std::string append_query_params(const char *path, const Params ¶ms) { std::string path_with_query = path; const static Regex re("[^?]+\\?.*"); auto delm = duckdb_re2::RegexMatch(path, re) ? '&' : '?'; path_with_query += delm + detail::params_to_query_str(params); return path_with_query; } // Header utilities inline std::pair make_range_header(Ranges ranges) { std::string field = "bytes="; auto i = 0; for (auto r : ranges) { if (i != 0) { field += ", "; } if (r.first != -1) { field += std::to_string(r.first); } field += '-'; if (r.second != -1) { field += std::to_string(r.second); } i++; } return std::make_pair("Range", std::move(field)); } inline std::pair make_basic_authentication_header(const std::string &username, const std::string &password, bool is_proxy) { auto field = "Basic " + detail::base64_encode(username + ":" + password); auto key = is_proxy ? "Proxy-Authorization" : "Authorization"; return std::make_pair(key, std::move(field)); } inline std::pair make_bearer_token_authentication_header(const std::string &token, bool is_proxy = false) { auto field = "Bearer " + token; auto key = is_proxy ? "Proxy-Authorization" : "Authorization"; return std::make_pair(key, std::move(field)); } // Request implementation inline bool Request::has_header(const char *key) const { return detail::has_header(headers, key); } inline std::string Request::get_header_value(const char *key, size_t id) const { return detail::get_header_value(headers, key, id, ""); } inline size_t Request::get_header_value_count(const char *key) const { auto r = headers.equal_range(key); return static_cast(std::distance(r.first, r.second)); } inline void Request::set_header(const char *key, const char *val) { if (!detail::has_crlf(key) && !detail::has_crlf(val)) { headers.emplace(key, val); } } inline void Request::set_header(const char *key, const std::string &val) { if (!detail::has_crlf(key) && !detail::has_crlf(val.c_str())) { headers.emplace(key, val); } } inline bool Request::has_param(const char *key) const { return params.find(key) != params.end(); } inline std::string Request::get_param_value(const char *key, size_t id) const { auto rng = params.equal_range(key); auto it = rng.first; std::advance(it, static_cast(id)); if (it != rng.second) { return it->second; } return std::string(); } inline size_t Request::get_param_value_count(const char *key) const { auto r = params.equal_range(key); return static_cast(std::distance(r.first, r.second)); } inline bool Request::is_multipart_form_data() const { const auto &content_type = get_header_value("Content-Type"); return !content_type.rfind("multipart/form-data", 0); } inline bool Request::has_file(const char *key) const { return files.find(key) != files.end(); } inline MultipartFormData Request::get_file_value(const char *key) const { auto it = files.find(key); if (it != files.end()) { return it->second; } return MultipartFormData(); } // Response implementation inline bool Response::has_header(const char *key) const { return headers.find(key) != headers.end(); } inline std::string Response::get_header_value(const char *key, size_t id) const { return detail::get_header_value(headers, key, id, ""); } inline size_t Response::get_header_value_count(const char *key) const { auto r = headers.equal_range(key); return static_cast(std::distance(r.first, r.second)); } inline void Response::set_header(const char *key, const char *val) { if (!detail::has_crlf(key) && !detail::has_crlf(val)) { headers.emplace(key, val); } } inline void Response::set_header(const char *key, const std::string &val) { if (!detail::has_crlf(key) && !detail::has_crlf(val.c_str())) { headers.emplace(key, val); } } inline void Response::set_redirect(const char *url, int stat) { if (!detail::has_crlf(url)) { set_header("Location", url); if (300 <= stat && stat < 400) { this->status = stat; } else { this->status = 302; } } } inline void Response::set_redirect(const std::string &url, int stat) { set_redirect(url.c_str(), stat); } inline void Response::set_content(const char *s, size_t n, const char *content_type) { body.assign(s, n); auto rng = headers.equal_range("Content-Type"); headers.erase(rng.first, rng.second); set_header("Content-Type", content_type); } inline void Response::set_content(const std::string &s, const char *content_type) { set_content(s.data(), s.size(), content_type); } inline void Response::set_content_provider( size_t in_length, const char *content_type, ContentProvider provider, ContentProviderResourceReleaser resource_releaser) { assert(in_length > 0); set_header("Content-Type", content_type); content_length_ = in_length; content_provider_ = std::move(provider); content_provider_resource_releaser_ = resource_releaser; is_chunked_content_provider_ = false; } inline void Response::set_content_provider( const char *content_type, ContentProviderWithoutLength provider, ContentProviderResourceReleaser resource_releaser) { set_header("Content-Type", content_type); content_length_ = 0; content_provider_ = detail::ContentProviderAdapter(std::move(provider)); content_provider_resource_releaser_ = resource_releaser; is_chunked_content_provider_ = false; } inline void Response::set_chunked_content_provider( const char *content_type, ContentProviderWithoutLength provider, ContentProviderResourceReleaser resource_releaser) { set_header("Content-Type", content_type); content_length_ = 0; content_provider_ = detail::ContentProviderAdapter(std::move(provider)); content_provider_resource_releaser_ = resource_releaser; is_chunked_content_provider_ = true; } // Result implementation inline bool Result::has_request_header(const char *key) const { return request_headers_.find(key) != request_headers_.end(); } inline std::string Result::get_request_header_value(const char *key, size_t id) const { return detail::get_header_value(request_headers_, key, id, ""); } inline size_t Result::get_request_header_value_count(const char *key) const { auto r = request_headers_.equal_range(key); return static_cast(std::distance(r.first, r.second)); } // Stream implementation inline ssize_t Stream::write(const char *ptr) { return write(ptr, strlen(ptr)); } inline ssize_t Stream::write(const std::string &s) { return write(s.data(), s.size()); } namespace detail { // Socket stream implementation inline SocketStream::SocketStream(socket_t sock, time_t read_timeout_sec, time_t read_timeout_usec, time_t write_timeout_sec, time_t write_timeout_usec) : sock_(sock), read_timeout_sec_(read_timeout_sec), read_timeout_usec_(read_timeout_usec), write_timeout_sec_(write_timeout_sec), write_timeout_usec_(write_timeout_usec), read_buff_(read_buff_size_, 0) {} inline SocketStream::~SocketStream() {} inline bool SocketStream::is_readable() const { return select_read(sock_, read_timeout_sec_, read_timeout_usec_) > 0; } inline bool SocketStream::is_writable() const { return select_write(sock_, write_timeout_sec_, write_timeout_usec_) > 0; } inline ssize_t SocketStream::read(char *ptr, size_t size) { #ifdef _WIN32 size = (std::min)(size, static_cast((std::numeric_limits::max)())); #else size = (std::min)(size, static_cast((std::numeric_limits::max)())); #endif if (read_buff_off_ < read_buff_content_size_) { auto remaining_size = read_buff_content_size_ - read_buff_off_; if (size <= remaining_size) { memcpy(ptr, read_buff_.data() + read_buff_off_, size); read_buff_off_ += size; return static_cast(size); } else { memcpy(ptr, read_buff_.data() + read_buff_off_, remaining_size); read_buff_off_ += remaining_size; return static_cast(remaining_size); } } if (!is_readable()) { return -1; } read_buff_off_ = 0; read_buff_content_size_ = 0; if (size < read_buff_size_) { auto n = read_socket(sock_, read_buff_.data(), read_buff_size_, CPPHTTPLIB_RECV_FLAGS); if (n <= 0) { return n; } else if (n <= static_cast(size)) { memcpy(ptr, read_buff_.data(), static_cast(n)); return n; } else { memcpy(ptr, read_buff_.data(), size); read_buff_off_ = size; read_buff_content_size_ = static_cast(n); return static_cast(size); } } else { return read_socket(sock_, ptr, size, CPPHTTPLIB_RECV_FLAGS); } } inline ssize_t SocketStream::write(const char *ptr, size_t size) { if (!is_writable()) { return -1; } #ifdef _WIN32 size = (std::min)(size, static_cast((std::numeric_limits::max)())); #endif return send_socket(sock_, ptr, size, CPPHTTPLIB_SEND_FLAGS); } inline void SocketStream::get_remote_ip_and_port(std::string &ip, int &port) const { return detail::get_remote_ip_and_port(sock_, ip, port); } inline socket_t SocketStream::socket() const { return sock_; } // Buffer stream implementation inline bool BufferStream::is_readable() const { return true; } inline bool BufferStream::is_writable() const { return true; } inline ssize_t BufferStream::read(char *ptr, size_t size) { #if defined(_MSC_VER) && _MSC_VER <= 1900 auto len_read = buffer._Copy_s(ptr, size, size, position); #else auto len_read = buffer.copy(ptr, size, position); #endif position += static_cast(len_read); return static_cast(len_read); } inline ssize_t BufferStream::write(const char *ptr, size_t size) { buffer.append(ptr, size); return static_cast(size); } inline void BufferStream::get_remote_ip_and_port(std::string & /*ip*/, int & /*port*/) const {} inline socket_t BufferStream::socket() const { return 0; } inline const std::string &BufferStream::get_buffer() const { return buffer; } } // namespace detail // HTTP server implementation inline Server::Server() : new_task_queue( [] { return new ThreadPool(CPPHTTPLIB_THREAD_POOL_COUNT); }), svr_sock_(INVALID_SOCKET), is_running_(false) { #ifndef _WIN32 signal(SIGPIPE, SIG_IGN); #endif } inline Server::~Server() {} inline Server &Server::Get(const std::string &pattern, Handler handler) { get_handlers_.push_back( std::make_pair(Regex(pattern), std::move(handler))); return *this; } inline Server &Server::Post(const std::string &pattern, Handler handler) { post_handlers_.push_back( std::make_pair(Regex(pattern), std::move(handler))); return *this; } inline Server &Server::Post(const std::string &pattern, HandlerWithContentReader handler) { post_handlers_for_content_reader_.push_back( std::make_pair(Regex(pattern), std::move(handler))); return *this; } inline Server &Server::Put(const std::string &pattern, Handler handler) { put_handlers_.push_back( std::make_pair(Regex(pattern), std::move(handler))); return *this; } inline Server &Server::Put(const std::string &pattern, HandlerWithContentReader handler) { put_handlers_for_content_reader_.push_back( std::make_pair(Regex(pattern), std::move(handler))); return *this; } inline Server &Server::Patch(const std::string &pattern, Handler handler) { patch_handlers_.push_back( std::make_pair(Regex(pattern), std::move(handler))); return *this; } inline Server &Server::Patch(const std::string &pattern, HandlerWithContentReader handler) { patch_handlers_for_content_reader_.push_back( std::make_pair(Regex(pattern), std::move(handler))); return *this; } inline Server &Server::Delete(const std::string &pattern, Handler handler) { delete_handlers_.push_back( std::make_pair(Regex(pattern), std::move(handler))); return *this; } inline Server &Server::Delete(const std::string &pattern, HandlerWithContentReader handler) { delete_handlers_for_content_reader_.push_back( std::make_pair(Regex(pattern), std::move(handler))); return *this; } inline Server &Server::Options(const std::string &pattern, Handler handler) { options_handlers_.push_back( std::make_pair(Regex(pattern), std::move(handler))); return *this; } inline bool Server::set_base_dir(const std::string &dir, const std::string &mount_point) { return set_mount_point(mount_point, dir); } inline bool Server::set_mount_point(const std::string &mount_point, const std::string &dir, Headers headers) { if (detail::is_dir(dir)) { std::string mnt = !mount_point.empty() ? mount_point : "/"; if (!mnt.empty() && mnt[0] == '/') { base_dirs_.push_back({mnt, dir, std::move(headers)}); return true; } } return false; } inline bool Server::remove_mount_point(const std::string &mount_point) { for (auto it = base_dirs_.begin(); it != base_dirs_.end(); ++it) { if (it->mount_point == mount_point) { base_dirs_.erase(it); return true; } } return false; } inline Server & Server::set_file_extension_and_mimetype_mapping(const char *ext, const char *mime) { file_extension_and_mimetype_map_[ext] = mime; return *this; } inline Server &Server::set_file_request_handler(Handler handler) { file_request_handler_ = std::move(handler); return *this; } inline Server &Server::set_error_handler(HandlerWithResponse handler) { error_handler_ = std::move(handler); return *this; } inline Server &Server::set_error_handler(Handler handler) { error_handler_ = [handler](const Request &req, Response &res) { handler(req, res); return HandlerResponse::Handled; }; return *this; } inline Server &Server::set_exception_handler(ExceptionHandler handler) { exception_handler_ = std::move(handler); return *this; } inline Server &Server::set_pre_routing_handler(HandlerWithResponse handler) { pre_routing_handler_ = std::move(handler); return *this; } inline Server &Server::set_post_routing_handler(Handler handler) { post_routing_handler_ = std::move(handler); return *this; } inline Server &Server::set_logger(Logger logger) { logger_ = std::move(logger); return *this; } inline Server & Server::set_expect_100_continue_handler(Expect100ContinueHandler handler) { expect_100_continue_handler_ = std::move(handler); return *this; } inline Server &Server::set_address_family(int family) { address_family_ = family; return *this; } inline Server &Server::set_tcp_nodelay(bool on) { tcp_nodelay_ = on; return *this; } inline Server &Server::set_socket_options(SocketOptions socket_options) { socket_options_ = std::move(socket_options); return *this; } inline Server &Server::set_default_headers(Headers headers) { default_headers_ = std::move(headers); return *this; } inline Server &Server::set_keep_alive_max_count(size_t count) { keep_alive_max_count_ = count; return *this; } inline Server &Server::set_keep_alive_timeout(time_t sec) { keep_alive_timeout_sec_ = sec; return *this; } inline Server &Server::set_read_timeout(time_t sec, time_t usec) { read_timeout_sec_ = sec; read_timeout_usec_ = usec; return *this; } inline Server &Server::set_write_timeout(time_t sec, time_t usec) { write_timeout_sec_ = sec; write_timeout_usec_ = usec; return *this; } inline Server &Server::set_idle_interval(time_t sec, time_t usec) { idle_interval_sec_ = sec; idle_interval_usec_ = usec; return *this; } inline Server &Server::set_payload_max_length(size_t length) { payload_max_length_ = length; return *this; } inline bool Server::bind_to_port(const char *host, int port, int socket_flags) { if (bind_internal(host, port, socket_flags) < 0) return false; return true; } inline int Server::bind_to_any_port(const char *host, int socket_flags) { return bind_internal(host, 0, socket_flags); } inline bool Server::listen_after_bind() { return listen_internal(); } inline bool Server::listen(const char *host, int port, int socket_flags) { return bind_to_port(host, port, socket_flags) && listen_internal(); } inline bool Server::is_running() const { return is_running_; } inline void Server::stop() { if (is_running_) { assert(svr_sock_ != INVALID_SOCKET); std::atomic sock(svr_sock_.exchange(INVALID_SOCKET)); detail::shutdown_socket(sock); detail::close_socket(sock); } } inline bool Server::parse_request_line(const char *s, Request &req) { auto len = strlen(s); if (len < 2 || s[len - 2] != '\r' || s[len - 1] != '\n') { return false; } len -= 2; { size_t count = 0; detail::split(s, s + len, ' ', [&](const char *b, const char *e) { switch (count) { case 0: req.method = std::string(b, e); break; case 1: req.target = std::string(b, e); break; case 2: req.version = std::string(b, e); break; default: break; } count++; }); if (count != 3) { return false; } } static const std::set methods{ "GET", "HEAD", "POST", "PUT", "DELETE", "CONNECT", "OPTIONS", "TRACE", "PATCH", "PRI"}; if (methods.find(req.method) == methods.end()) { return false; } if (req.version != "HTTP/1.1" && req.version != "HTTP/1.0") { return false; } { size_t count = 0; detail::split(req.target.data(), req.target.data() + req.target.size(), '?', [&](const char *b, const char *e) { switch (count) { case 0: req.path = detail::decode_url(std::string(b, e), false); break; case 1: { if (e - b > 0) { detail::parse_query_text(std::string(b, e), req.params); } break; } default: break; } count++; }); if (count > 2) { return false; } } return true; } inline bool Server::write_response(Stream &strm, bool close_connection, const Request &req, Response &res) { return write_response_core(strm, close_connection, req, res, false); } inline bool Server::write_response_with_content(Stream &strm, bool close_connection, const Request &req, Response &res) { return write_response_core(strm, close_connection, req, res, true); } inline bool Server::write_response_core(Stream &strm, bool close_connection, const Request &req, Response &res, bool need_apply_ranges) { assert(res.status != -1); if (400 <= res.status && error_handler_ && error_handler_(req, res) == HandlerResponse::Handled) { need_apply_ranges = true; } std::string content_type; std::string boundary; if (need_apply_ranges) { apply_ranges(req, res, content_type, boundary); } // Prepare additional headers if (close_connection || req.get_header_value("Connection") == "close") { res.set_header("Connection", "close"); } else { std::stringstream ss; ss << "timeout=" << keep_alive_timeout_sec_ << ", max=" << keep_alive_max_count_; res.set_header("Keep-Alive", ss.str()); } if (!res.has_header("Content-Type") && (!res.body.empty() || res.content_length_ > 0 || res.content_provider_)) { res.set_header("Content-Type", "text/plain"); } if (!res.has_header("Content-Length") && res.body.empty() && !res.content_length_ && !res.content_provider_) { res.set_header("Content-Length", "0"); } if (!res.has_header("Accept-Ranges") && req.method == "HEAD") { res.set_header("Accept-Ranges", "bytes"); } if (post_routing_handler_) { post_routing_handler_(req, res); } // Response line and headers { detail::BufferStream bstrm; if (!bstrm.write_format("HTTP/1.1 %d %s\r\n", res.status, detail::status_message(res.status))) { return false; } if (!detail::write_headers(bstrm, res.headers)) { return false; } // Flush buffer auto &data = bstrm.get_buffer(); strm.write(data.data(), data.size()); } // Body auto ret = true; if (req.method != "HEAD") { if (!res.body.empty()) { if (!strm.write(res.body)) { ret = false; } } else if (res.content_provider_) { if (write_content_with_provider(strm, req, res, boundary, content_type)) { res.content_provider_success_ = true; } else { res.content_provider_success_ = false; ret = false; } } } // Log if (logger_) { logger_(req, res); } return ret; } inline bool Server::write_content_with_provider(Stream &strm, const Request &req, Response &res, const std::string &boundary, const std::string &content_type) { auto is_shutting_down = [this]() { return this->svr_sock_ == INVALID_SOCKET; }; if (res.content_length_ > 0) { if (req.ranges.empty()) { return detail::write_content(strm, res.content_provider_, 0, res.content_length_, is_shutting_down); } else if (req.ranges.size() == 1) { auto offsets = detail::get_range_offset_and_length(req, res.content_length_, 0); auto offset = offsets.first; auto length = offsets.second; return detail::write_content(strm, res.content_provider_, offset, length, is_shutting_down); } else { return detail::write_multipart_ranges_data( strm, req, res, boundary, content_type, is_shutting_down); } } else { if (res.is_chunked_content_provider_) { auto type = detail::encoding_type(req, res); std::unique_ptr compressor; if (type == detail::EncodingType::Gzip) { #ifdef CPPHTTPLIB_ZLIB_SUPPORT compressor = detail::make_unique(); #endif } else if (type == detail::EncodingType::Brotli) { #ifdef CPPHTTPLIB_BROTLI_SUPPORT compressor = detail::make_unique(); #endif } else { compressor = detail::make_unique(); } assert(compressor != nullptr); return detail::write_content_chunked(strm, res.content_provider_, is_shutting_down, *compressor); } else { return detail::write_content_without_length(strm, res.content_provider_, is_shutting_down); } } } inline bool Server::read_content(Stream &strm, Request &req, Response &res) { MultipartFormDataMap::iterator cur; if (read_content_core( strm, req, res, // Regular [&](const char *buf, size_t n) { if (req.body.size() + n > req.body.max_size()) { return false; } req.body.append(buf, n); return true; }, // Multipart [&](const MultipartFormData &file) { cur = req.files.emplace(file.name, file); return true; }, [&](const char *buf, size_t n) { auto &content = cur->second.content; if (content.size() + n > content.max_size()) { return false; } content.append(buf, n); return true; })) { const auto &content_type = req.get_header_value("Content-Type"); if (!content_type.find("application/x-www-form-urlencoded")) { if (req.body.size() > CPPHTTPLIB_REQUEST_URI_MAX_LENGTH) { res.status = 413; // NOTE: should be 414? return false; } detail::parse_query_text(req.body, req.params); } return true; } return false; } inline bool Server::read_content_with_content_receiver( Stream &strm, Request &req, Response &res, ContentReceiver receiver, MultipartContentHeader multipart_header, ContentReceiver multipart_receiver) { return read_content_core(strm, req, res, std::move(receiver), std::move(multipart_header), std::move(multipart_receiver)); } inline bool Server::read_content_core(Stream &strm, Request &req, Response &res, ContentReceiver receiver, MultipartContentHeader mulitpart_header, ContentReceiver multipart_receiver) { detail::MultipartFormDataParser multipart_form_data_parser; ContentReceiverWithProgress out; if (req.is_multipart_form_data()) { const auto &content_type = req.get_header_value("Content-Type"); std::string boundary; if (!detail::parse_multipart_boundary(content_type, boundary)) { res.status = 400; return false; } multipart_form_data_parser.set_boundary(std::move(boundary)); out = [&](const char *buf, size_t n, uint64_t /*off*/, uint64_t /*len*/) { /* For debug size_t pos = 0; while (pos < n) { auto read_size = (std::min)(1, n - pos); auto ret = multipart_form_data_parser.parse( buf + pos, read_size, multipart_receiver, mulitpart_header); if (!ret) { return false; } pos += read_size; } return true; */ return multipart_form_data_parser.parse(buf, n, multipart_receiver, mulitpart_header); }; } else { out = [receiver](const char *buf, size_t n, uint64_t /*off*/, uint64_t /*len*/) { return receiver(buf, n); }; } if (req.method == "DELETE" && !req.has_header("Content-Length")) { return true; } if (!detail::read_content(strm, req, payload_max_length_, res.status, nullptr, out, true)) { return false; } if (req.is_multipart_form_data()) { if (!multipart_form_data_parser.is_valid()) { res.status = 400; return false; } } return true; } inline bool Server::handle_file_request(const Request &req, Response &res, bool head) { for (const auto &entry : base_dirs_) { // Prefix match if (!req.path.compare(0, entry.mount_point.size(), entry.mount_point)) { std::string sub_path = "/" + req.path.substr(entry.mount_point.size()); if (detail::is_valid_path(sub_path)) { auto path = entry.base_dir + sub_path; if (path.back() == '/') { path += "index.html"; } if (detail::is_file(path)) { detail::read_file(path, res.body); auto type = detail::find_content_type(path, file_extension_and_mimetype_map_); if (type) { res.set_header("Content-Type", type); } for (const auto &kv : entry.headers) { res.set_header(kv.first.c_str(), kv.second); } res.status = req.has_header("Range") ? 206 : 200; if (!head && file_request_handler_) { file_request_handler_(req, res); } return true; } } } } return false; } inline socket_t Server::create_server_socket(const char *host, int port, int socket_flags, SocketOptions socket_options) const { return detail::create_socket( host, "", port, address_family_, socket_flags, tcp_nodelay_, std::move(socket_options), [](socket_t sock, struct addrinfo &ai) -> bool { if (::bind(sock, ai.ai_addr, static_cast(ai.ai_addrlen))) { return false; } if (::listen(sock, CPPHTTPLIB_LISTEN_BACKLOG)) { return false; } return true; }); } inline int Server::bind_internal(const char *host, int port, int socket_flags) { if (!is_valid()) { return -1; } svr_sock_ = create_server_socket(host, port, socket_flags, socket_options_); if (svr_sock_ == INVALID_SOCKET) { return -1; } if (port == 0) { struct sockaddr_storage addr; socklen_t addr_len = sizeof(addr); if (getsockname(svr_sock_, reinterpret_cast(&addr), &addr_len) == -1) { return -1; } if (addr.ss_family == AF_INET) { return ntohs(reinterpret_cast(&addr)->sin_port); } else if (addr.ss_family == AF_INET6) { return ntohs(reinterpret_cast(&addr)->sin6_port); } else { return -1; } } else { return port; } } inline bool Server::listen_internal() { auto ret = true; is_running_ = true; { std::unique_ptr task_queue(new_task_queue()); while (svr_sock_ != INVALID_SOCKET) { #ifndef _WIN32 if (idle_interval_sec_ > 0 || idle_interval_usec_ > 0) { #endif auto val = detail::select_read(svr_sock_, idle_interval_sec_, idle_interval_usec_); if (val == 0) { // Timeout task_queue->on_idle(); continue; } #ifndef _WIN32 } #endif socket_t sock = accept(svr_sock_, nullptr, nullptr); if (sock == INVALID_SOCKET) { if (errno == EMFILE) { // The per-process limit of open file descriptors has been reached. // Try to accept new connections after a short sleep. std::this_thread::sleep_for(std::chrono::milliseconds(1)); continue; } if (svr_sock_ != INVALID_SOCKET) { detail::close_socket(svr_sock_); ret = false; } else { ; // The server socket was closed by user. } break; } { #ifdef _WIN32 auto timeout = static_cast(read_timeout_sec_ * 1000 + read_timeout_usec_ / 1000); setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (char *)&timeout, sizeof(timeout)); #else timeval tv; tv.tv_sec = static_cast(read_timeout_sec_); tv.tv_usec = static_cast(read_timeout_usec_); setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (char *)&tv, sizeof(tv)); #endif } { #ifdef _WIN32 auto timeout = static_cast(write_timeout_sec_ * 1000 + write_timeout_usec_ / 1000); setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO, (char *)&timeout, sizeof(timeout)); #else timeval tv; tv.tv_sec = static_cast(write_timeout_sec_); tv.tv_usec = static_cast(write_timeout_usec_); setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO, (char *)&tv, sizeof(tv)); #endif } #if __cplusplus > 201703L task_queue->enqueue([=, this]() { process_and_close_socket(sock); }); #else task_queue->enqueue([=]() { process_and_close_socket(sock); }); #endif } task_queue->shutdown(); } is_running_ = false; return ret; } inline bool Server::routing(Request &req, Response &res, Stream &strm) { if (pre_routing_handler_ && pre_routing_handler_(req, res) == HandlerResponse::Handled) { return true; } // File handler bool is_head_request = req.method == "HEAD"; if ((req.method == "GET" || is_head_request) && handle_file_request(req, res, is_head_request)) { return true; } if (detail::expect_content(req)) { // Content reader handler { ContentReader reader( [&](ContentReceiver receiver) { return read_content_with_content_receiver( strm, req, res, std::move(receiver), nullptr, nullptr); }, [&](MultipartContentHeader header, ContentReceiver receiver) { return read_content_with_content_receiver(strm, req, res, nullptr, std::move(header), std::move(receiver)); }); if (req.method == "POST") { if (dispatch_request_for_content_reader( req, res, std::move(reader), post_handlers_for_content_reader_)) { return true; } } else if (req.method == "PUT") { if (dispatch_request_for_content_reader( req, res, std::move(reader), put_handlers_for_content_reader_)) { return true; } } else if (req.method == "PATCH") { if (dispatch_request_for_content_reader( req, res, std::move(reader), patch_handlers_for_content_reader_)) { return true; } } else if (req.method == "DELETE") { if (dispatch_request_for_content_reader( req, res, std::move(reader), delete_handlers_for_content_reader_)) { return true; } } } // Read content into `req.body` if (!read_content(strm, req, res)) { return false; } } // Regular handler if (req.method == "GET" || req.method == "HEAD") { return dispatch_request(req, res, get_handlers_); } else if (req.method == "POST") { return dispatch_request(req, res, post_handlers_); } else if (req.method == "PUT") { return dispatch_request(req, res, put_handlers_); } else if (req.method == "DELETE") { return dispatch_request(req, res, delete_handlers_); } else if (req.method == "OPTIONS") { return dispatch_request(req, res, options_handlers_); } else if (req.method == "PATCH") { return dispatch_request(req, res, patch_handlers_); } res.status = 400; return false; } inline bool Server::dispatch_request(Request &req, Response &res, const Handlers &handlers) { for (const auto &x : handlers) { const auto &pattern = x.first; const auto &handler = x.second; if (duckdb_re2::RegexMatch(req.path, req.matches, pattern)) { handler(req, res); return true; } } return false; } inline void Server::apply_ranges(const Request &req, Response &res, std::string &content_type, std::string &boundary) { if (req.ranges.size() > 1) { boundary = detail::make_multipart_data_boundary(); auto it = res.headers.find("Content-Type"); if (it != res.headers.end()) { content_type = it->second; res.headers.erase(it); } res.headers.emplace("Content-Type", "multipart/byteranges; boundary=" + boundary); } auto type = detail::encoding_type(req, res); if (res.body.empty()) { if (res.content_length_ > 0) { size_t length = 0; if (req.ranges.empty()) { length = res.content_length_; } else if (req.ranges.size() == 1) { auto offsets = detail::get_range_offset_and_length(req, res.content_length_, 0); auto offset = offsets.first; length = offsets.second; auto content_range = detail::make_content_range_header_field( offset, length, res.content_length_); res.set_header("Content-Range", content_range); } else { length = detail::get_multipart_ranges_data_length(req, res, boundary, content_type); } res.set_header("Content-Length", std::to_string(length)); } else { if (res.content_provider_) { if (res.is_chunked_content_provider_) { res.set_header("Transfer-Encoding", "chunked"); if (type == detail::EncodingType::Gzip) { res.set_header("Content-Encoding", "gzip"); } else if (type == detail::EncodingType::Brotli) { res.set_header("Content-Encoding", "br"); } } } } } else { 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); if (offset < res.body.size()) { res.body = res.body.substr(offset, length); } else { res.body.clear(); res.status = 416; } } else { std::string data; if (detail::make_multipart_ranges_data(req, res, boundary, content_type, data)) { res.body.swap(data); } else { res.body.clear(); res.status = 416; } } if (type != detail::EncodingType::None) { std::unique_ptr compressor; std::string content_encoding; if (type == detail::EncodingType::Gzip) { #ifdef CPPHTTPLIB_ZLIB_SUPPORT compressor = detail::make_unique(); content_encoding = "gzip"; #endif } else if (type == detail::EncodingType::Brotli) { #ifdef CPPHTTPLIB_BROTLI_SUPPORT compressor = detail::make_unique(); content_encoding = "br"; #endif } if (compressor) { std::string compressed; if (compressor->compress(res.body.data(), res.body.size(), true, [&](const char *data, size_t data_len) { compressed.append(data, data_len); return true; })) { res.body.swap(compressed); res.set_header("Content-Encoding", content_encoding); } } } auto length = std::to_string(res.body.size()); res.set_header("Content-Length", length); } } inline bool Server::dispatch_request_for_content_reader( Request &req, Response &res, ContentReader content_reader, const HandlersForContentReader &handlers) { for (const auto &x : handlers) { const auto &pattern = x.first; const auto &handler = x.second; if (duckdb_re2::RegexMatch(req.path, req.matches, pattern)) { handler(req, res, content_reader); return true; } } return false; } inline bool Server::process_request(Stream &strm, bool close_connection, bool &connection_closed, const std::function &setup_request) { std::array buf{}; detail::stream_line_reader line_reader(strm, buf.data(), buf.size()); // Connection has been closed on client if (!line_reader.getline()) { return false; } Request req; Response res; res.version = "HTTP/1.1"; for (const auto &header : default_headers_) { if (res.headers.find(header.first) == res.headers.end()) { res.headers.insert(header); } } #ifdef _WIN32 // TODO: Increase FD_SETSIZE statically (libzmq), dynamically (MySQL). #else #ifndef CPPHTTPLIB_USE_POLL // Socket file descriptor exceeded FD_SETSIZE... if (strm.socket() >= FD_SETSIZE) { Headers dummy; detail::read_headers(strm, dummy); res.status = 500; return write_response(strm, close_connection, req, res); } #endif #endif // Check if the request URI doesn't exceed the limit if (line_reader.size() > CPPHTTPLIB_REQUEST_URI_MAX_LENGTH) { Headers dummy; detail::read_headers(strm, dummy); res.status = 414; return write_response(strm, close_connection, req, res); } // Request line and headers if (!parse_request_line(line_reader.ptr(), req) || !detail::read_headers(strm, req.headers)) { res.status = 400; return write_response(strm, close_connection, req, res); } if (req.get_header_value("Connection") == "close") { connection_closed = true; } if (req.version == "HTTP/1.0" && req.get_header_value("Connection") != "Keep-Alive") { connection_closed = true; } strm.get_remote_ip_and_port(req.remote_addr, req.remote_port); req.set_header("REMOTE_ADDR", req.remote_addr); req.set_header("REMOTE_PORT", std::to_string(req.remote_port)); if (req.has_header("Range")) { const auto &range_header_value = req.get_header_value("Range"); if (!detail::parse_range_header(range_header_value, req.ranges)) { res.status = 416; return write_response(strm, close_connection, req, res); } } if (setup_request) { setup_request(req); } if (req.get_header_value("Expect") == "100-continue") { auto status = 100; if (expect_100_continue_handler_) { status = expect_100_continue_handler_(req, res); } switch (status) { case 100: case 417: strm.write_format("HTTP/1.1 %d %s\r\n\r\n", status, detail::status_message(status)); break; default: return write_response(strm, close_connection, req, res); } } // Rounting bool routed = false; #ifdef CPPHTTPLIB_NO_EXCEPTIONS routed = routing(req, res, strm); #else try { routed = routing(req, res, strm); } catch (std::exception &e) { if (exception_handler_) { exception_handler_(req, res, e); routed = true; } else { res.status = 500; res.set_header("EXCEPTION_WHAT", e.what()); } } catch (...) { res.status = 500; res.set_header("EXCEPTION_WHAT", "UNKNOWN"); } #endif if (routed) { if (res.status == -1) { res.status = req.ranges.empty() ? 200 : 206; } return write_response_with_content(strm, close_connection, req, res); } else { if (res.status == -1) { res.status = 404; } return write_response(strm, close_connection, req, res); } } inline bool Server::is_valid() const { return true; } inline bool Server::process_and_close_socket(socket_t sock) { auto ret = detail::process_server_socket( svr_sock_, sock, keep_alive_max_count_, keep_alive_timeout_sec_, read_timeout_sec_, read_timeout_usec_, write_timeout_sec_, write_timeout_usec_, [this](Stream &strm, bool close_connection, bool &connection_closed) { return process_request(strm, close_connection, connection_closed, nullptr); }); detail::shutdown_socket(sock); detail::close_socket(sock); return ret; } // HTTP client implementation inline ClientImpl::ClientImpl(const std::string &host) : ClientImpl(host, 80, std::string(), std::string()) {} inline ClientImpl::ClientImpl(const std::string &host, int port) : ClientImpl(host, port, std::string(), std::string()) {} inline ClientImpl::ClientImpl(const std::string &host, int port, const std::string &client_cert_path, const std::string &client_key_path) : host_(host), port_(port), host_and_port_(adjust_host_string(host) + ":" + std::to_string(port)), client_cert_path_(client_cert_path), client_key_path_(client_key_path) {} inline ClientImpl::~ClientImpl() { std::lock_guard guard(socket_mutex_); shutdown_socket(socket_); close_socket(socket_); } inline bool ClientImpl::is_valid() const { return true; } inline void ClientImpl::copy_settings(const ClientImpl &rhs) { client_cert_path_ = rhs.client_cert_path_; client_key_path_ = rhs.client_key_path_; connection_timeout_sec_ = rhs.connection_timeout_sec_; read_timeout_sec_ = rhs.read_timeout_sec_; read_timeout_usec_ = rhs.read_timeout_usec_; write_timeout_sec_ = rhs.write_timeout_sec_; write_timeout_usec_ = rhs.write_timeout_usec_; basic_auth_username_ = rhs.basic_auth_username_; basic_auth_password_ = rhs.basic_auth_password_; bearer_token_auth_token_ = rhs.bearer_token_auth_token_; #ifdef CPPHTTPLIB_OPENSSL_SUPPORT digest_auth_username_ = rhs.digest_auth_username_; digest_auth_password_ = rhs.digest_auth_password_; #endif keep_alive_ = rhs.keep_alive_; follow_location_ = rhs.follow_location_; url_encode_ = rhs.url_encode_; address_family_ = rhs.address_family_; tcp_nodelay_ = rhs.tcp_nodelay_; socket_options_ = rhs.socket_options_; compress_ = rhs.compress_; decompress_ = rhs.decompress_; interface_ = rhs.interface_; proxy_host_ = rhs.proxy_host_; proxy_port_ = rhs.proxy_port_; proxy_basic_auth_username_ = rhs.proxy_basic_auth_username_; proxy_basic_auth_password_ = rhs.proxy_basic_auth_password_; proxy_bearer_token_auth_token_ = rhs.proxy_bearer_token_auth_token_; #ifdef CPPHTTPLIB_OPENSSL_SUPPORT proxy_digest_auth_username_ = rhs.proxy_digest_auth_username_; proxy_digest_auth_password_ = rhs.proxy_digest_auth_password_; #endif #ifdef CPPHTTPLIB_OPENSSL_SUPPORT ca_cert_file_path_ = rhs.ca_cert_file_path_; ca_cert_dir_path_ = rhs.ca_cert_dir_path_; ca_cert_store_ = rhs.ca_cert_store_; #endif #ifdef CPPHTTPLIB_OPENSSL_SUPPORT server_certificate_verification_ = rhs.server_certificate_verification_; #endif logger_ = rhs.logger_; } inline socket_t ClientImpl::create_client_socket(Error &error) const { if (!proxy_host_.empty() && proxy_port_ != -1) { return detail::create_client_socket( proxy_host_.c_str(), "", proxy_port_, address_family_, tcp_nodelay_, socket_options_, connection_timeout_sec_, connection_timeout_usec_, read_timeout_sec_, read_timeout_usec_, write_timeout_sec_, write_timeout_usec_, interface_, error); } // Check is custom IP specified for host_ std::string ip; auto it = addr_map_.find(host_); if (it != addr_map_.end()) ip = it->second; return detail::create_client_socket( host_.c_str(), ip.c_str(), port_, address_family_, tcp_nodelay_, socket_options_, connection_timeout_sec_, connection_timeout_usec_, read_timeout_sec_, read_timeout_usec_, write_timeout_sec_, write_timeout_usec_, interface_, error); } inline bool ClientImpl::create_and_connect_socket(Socket &socket, Error &error) { auto sock = create_client_socket(error); if (sock == INVALID_SOCKET) { return false; } socket.sock = sock; return true; } inline void ClientImpl::shutdown_ssl(Socket & /*socket*/, bool /*shutdown_gracefully*/) { // If there are any requests in flight from threads other than us, then it's // a thread-unsafe race because individual ssl* objects are not thread-safe. assert(socket_requests_in_flight_ == 0 || socket_requests_are_from_thread_ == std::this_thread::get_id()); } inline void ClientImpl::shutdown_socket(Socket &socket) { if (socket.sock == INVALID_SOCKET) { return; } detail::shutdown_socket(socket.sock); } inline void ClientImpl::close_socket(Socket &socket) { // If there are requests in flight in another thread, usually closing // the socket will be fine and they will simply receive an error when // using the closed socket, but it is still a bug since rarely the OS // may reassign the socket id to be used for a new socket, and then // suddenly they will be operating on a live socket that is different // than the one they intended! assert(socket_requests_in_flight_ == 0 || socket_requests_are_from_thread_ == std::this_thread::get_id()); // It is also a bug if this happens while SSL is still active #ifdef CPPHTTPLIB_OPENSSL_SUPPORT assert(socket.ssl == nullptr); #endif if (socket.sock == INVALID_SOCKET) { return; } detail::close_socket(socket.sock); socket.sock = INVALID_SOCKET; } inline bool ClientImpl::read_response_line(Stream &strm, const Request &req, Response &res) { std::array buf{}; detail::stream_line_reader line_reader(strm, buf.data(), buf.size()); if (!line_reader.getline()) { return false; } #ifdef CPPHTTPLIB_ALLOW_LF_AS_LINE_TERMINATOR const static Regex re("(HTTP/1\\.[01]) (\\d{3})(?: (.*?))?\r\n"); #else const static Regex re("(HTTP/1\\.[01]) (\\d{3})(?: (.*?))?\r?\n"); #endif Match m; if (!duckdb_re2::RegexMatch(line_reader.ptr(), m, re)) { return req.method == "CONNECT"; } res.version = std::string(m[1]); res.status = std::stoi(std::string(m[2])); res.reason = std::string(m[3]); // Ignore '100 Continue' while (res.status == 100) { if (!line_reader.getline()) { return false; } // CRLF if (!line_reader.getline()) { return false; } // next response line if (!duckdb_re2::RegexMatch(line_reader.ptr(), m, re)) { return false; } res.version = std::string(m[1]); res.status = std::stoi(std::string(m[2])); res.reason = std::string(m[3]); } return true; } inline bool ClientImpl::send(Request &req, Response &res, Error &error) { std::lock_guard request_mutex_guard(request_mutex_); { std::lock_guard guard(socket_mutex_); // Set this to false immediately - if it ever gets set to true by the end of // the request, we know another thread instructed us to close the socket. socket_should_be_closed_when_request_is_done_ = false; auto is_alive = false; if (socket_.is_open()) { is_alive = detail::is_socket_alive(socket_.sock); if (!is_alive) { // Attempt to avoid sigpipe by shutting down nongracefully if it seems // like the other side has already closed the connection Also, there // cannot be any requests in flight from other threads since we locked // request_mutex_, so safe to close everything immediately const bool shutdown_gracefully = false; shutdown_ssl(socket_, shutdown_gracefully); shutdown_socket(socket_); close_socket(socket_); } } if (!is_alive) { if (!create_and_connect_socket(socket_, error)) { return false; } #ifdef CPPHTTPLIB_OPENSSL_SUPPORT // TODO: refactoring if (is_ssl()) { auto &scli = static_cast(*this); if (!proxy_host_.empty() && proxy_port_ != -1) { bool success = false; if (!scli.connect_with_proxy(socket_, res, success, error)) { return success; } } if (!scli.initialize_ssl(socket_, error)) { return false; } } #endif } // Mark the current socket as being in use so that it cannot be closed by // anyone else while this request is ongoing, even though we will be // releasing the mutex. if (socket_requests_in_flight_ > 1) { assert(socket_requests_are_from_thread_ == std::this_thread::get_id()); } socket_requests_in_flight_ += 1; socket_requests_are_from_thread_ = std::this_thread::get_id(); } for (const auto &header : default_headers_) { if (req.headers.find(header.first) == req.headers.end()) { req.headers.insert(header); } } auto close_connection = !keep_alive_; auto ret = process_socket(socket_, [&](Stream &strm) { return handle_request(strm, req, res, close_connection, error); }); // Briefly lock mutex in order to mark that a request is no longer ongoing { std::lock_guard guard(socket_mutex_); socket_requests_in_flight_ -= 1; if (socket_requests_in_flight_ <= 0) { assert(socket_requests_in_flight_ == 0); socket_requests_are_from_thread_ = std::thread::id(); } if (socket_should_be_closed_when_request_is_done_ || close_connection || !ret) { shutdown_ssl(socket_, true); shutdown_socket(socket_); close_socket(socket_); } } if (!ret) { if (error == Error::Success) { error = Error::Unknown; } } return ret; } inline Result ClientImpl::send(const Request &req) { auto req2 = req; return send_(std::move(req2)); } inline Result ClientImpl::send_(Request &&req) { auto res = detail::make_unique(); auto error = Error::Success; auto ret = send(req, *res, error); return Result{ret ? std::move(res) : nullptr, error, std::move(req.headers)}; } inline bool ClientImpl::handle_request(Stream &strm, Request &req, Response &res, bool close_connection, Error &error) { if (req.path.empty()) { error = Error::Connection; return false; } auto req_save = req; bool ret; if (!is_ssl() && !proxy_host_.empty() && proxy_port_ != -1) { auto req2 = req; req2.path = "http://" + host_and_port_ + req.path; ret = process_request(strm, req2, res, close_connection, error); req = req2; req.path = req_save.path; } else { ret = process_request(strm, req, res, close_connection, error); } if (!ret) { return false; } if (300 < res.status && res.status < 400 && follow_location_) { req = req_save; ret = redirect(req, res, error); } #ifdef CPPHTTPLIB_OPENSSL_SUPPORT if ((res.status == 401 || res.status == 407) && req.authorization_count_ < 5) { auto is_proxy = res.status == 407; const auto &username = is_proxy ? proxy_digest_auth_username_ : digest_auth_username_; const auto &password = is_proxy ? proxy_digest_auth_password_ : digest_auth_password_; if (!username.empty() && !password.empty()) { std::map auth; if (detail::parse_www_authenticate(res, auth, is_proxy)) { Request new_req = req; new_req.authorization_count_ += 1; new_req.headers.erase(is_proxy ? "Proxy-Authorization" : "Authorization"); new_req.headers.insert(detail::make_digest_authentication_header( req, auth, new_req.authorization_count_, detail::random_string(10), username, password, is_proxy)); Response new_res; ret = send(new_req, new_res, error); if (ret) { res = new_res; } } } } #endif return ret; } inline bool ClientImpl::redirect(Request &req, Response &res, Error &error) { if (req.redirect_count_ == 0) { error = Error::ExceedRedirectCount; return false; } auto location = res.get_header_value("location"); if (location.empty()) { return false; } const static Regex re( R"((?:(https?):)?(?://(?:\[([\d:]+)\]|([^:/?#]+))(?::(\d+))?)?([^?#]*(?:\?[^#]*)?)(?:#.*)?)"); Match m; if (!duckdb_re2::RegexMatch(location, m, re)) { return false; } auto scheme = is_ssl() ? "https" : "http"; auto next_scheme = m[1].str(); auto next_host = m[2].str(); if (next_host.empty()) { next_host = m[3].str(); } auto port_str = m[4].str(); auto next_path = m[5].str(); auto next_port = port_; if (!port_str.empty()) { next_port = std::stoi(port_str); } else if (!next_scheme.empty()) { next_port = next_scheme == "https" ? 443 : 80; } if (next_scheme.empty()) { next_scheme = scheme; } if (next_host.empty()) { next_host = host_; } if (next_path.empty()) { next_path = "/"; } if (next_scheme == scheme && next_host == host_ && next_port == port_) { return detail::redirect(*this, req, res, next_path, location, error); } else { if (next_scheme == "https") { #ifdef CPPHTTPLIB_OPENSSL_SUPPORT SSLClient cli(next_host.c_str(), next_port); cli.copy_settings(*this); if (ca_cert_store_) { cli.set_ca_cert_store(ca_cert_store_); } return detail::redirect(cli, req, res, next_path, location, error); #else return false; #endif } else { ClientImpl cli(next_host.c_str(), next_port); cli.copy_settings(*this); return detail::redirect(cli, req, res, next_path, location, error); } } } inline bool ClientImpl::write_content_with_provider(Stream &strm, const Request &req, Error &error) { auto is_shutting_down = []() { return false; }; if (req.is_chunked_content_provider_) { // TODO: Brotli suport std::unique_ptr compressor; #ifdef CPPHTTPLIB_ZLIB_SUPPORT if (compress_) { compressor = detail::make_unique(); } else #endif { compressor = detail::make_unique(); } return detail::write_content_chunked(strm, req.content_provider_, is_shutting_down, *compressor, error); } else { return detail::write_content(strm, req.content_provider_, 0, req.content_length_, is_shutting_down, error); } } // namespace CPPHTTPLIB_NAMESPACE inline bool ClientImpl::write_request(Stream &strm, Request &req, bool close_connection, Error &error) { // Prepare additional headers if (close_connection) { if (!req.has_header("Connection")) { req.headers.emplace("Connection", "close"); } } if (!req.has_header("Host")) { if (is_ssl()) { if (port_ == 443) { req.headers.emplace("Host", host_); } else { req.headers.emplace("Host", host_and_port_); } } else { if (port_ == 80) { req.headers.emplace("Host", host_); } else { req.headers.emplace("Host", host_and_port_); } } } if (!req.has_header("Accept")) { req.headers.emplace("Accept", "*/*"); } if (!req.has_header("User-Agent")) { req.headers.emplace("User-Agent", "cpp-httplib/0.10.1"); } if (req.body.empty()) { if (req.content_provider_) { if (!req.is_chunked_content_provider_) { if (!req.has_header("Content-Length")) { auto length = std::to_string(req.content_length_); req.headers.emplace("Content-Length", length); } } } else { if (req.method == "POST" || req.method == "PUT" || req.method == "PATCH") { req.headers.emplace("Content-Length", "0"); } } } else { if (!req.has_header("Content-Type")) { req.headers.emplace("Content-Type", "text/plain"); } if (!req.has_header("Content-Length")) { auto length = std::to_string(req.body.size()); req.headers.emplace("Content-Length", length); } } if (!basic_auth_password_.empty() || !basic_auth_username_.empty()) { if (!req.has_header("Authorization")) { req.headers.insert(make_basic_authentication_header( basic_auth_username_, basic_auth_password_, false)); } } if (!proxy_basic_auth_username_.empty() && !proxy_basic_auth_password_.empty()) { if (!req.has_header("Proxy-Authorization")) { req.headers.insert(make_basic_authentication_header( proxy_basic_auth_username_, proxy_basic_auth_password_, true)); } } if (!bearer_token_auth_token_.empty()) { if (!req.has_header("Authorization")) { req.headers.insert(make_bearer_token_authentication_header( bearer_token_auth_token_, false)); } } if (!proxy_bearer_token_auth_token_.empty()) { if (!req.has_header("Proxy-Authorization")) { req.headers.insert(make_bearer_token_authentication_header( proxy_bearer_token_auth_token_, true)); } } // Request line and headers { detail::BufferStream bstrm; const auto &path = url_encode_ ? detail::encode_url(req.path) : req.path; bstrm.write_format("%s %s HTTP/1.1\r\n", req.method.c_str(), path.c_str()); detail::write_headers(bstrm, req.headers); // Flush buffer auto &data = bstrm.get_buffer(); if (!detail::write_data(strm, data.data(), data.size())) { error = Error::Write; return false; } } // Body if (req.body.empty()) { return write_content_with_provider(strm, req, error); } if (!detail::write_data(strm, req.body.data(), req.body.size())) { error = Error::Write; return false; } return true; } inline std::unique_ptr ClientImpl::send_with_content_provider( Request &req, // const char *method, const char *path, const Headers &headers, const char *body, size_t content_length, ContentProvider content_provider, ContentProviderWithoutLength content_provider_without_length, const char *content_type, Error &error) { if (content_type) { req.headers.emplace("Content-Type", content_type); } #ifdef CPPHTTPLIB_ZLIB_SUPPORT if (compress_) { req.headers.emplace("Content-Encoding", "gzip"); } #endif #ifdef CPPHTTPLIB_ZLIB_SUPPORT if (compress_ && !content_provider_without_length) { // TODO: Brotli support detail::gzip_compressor compressor; if (content_provider) { auto ok = true; size_t offset = 0; DataSink data_sink; data_sink.write = [&](const char *data, size_t data_len) -> bool { if (ok) { auto last = offset + data_len == content_length; auto ret = compressor.compress( data, data_len, last, [&](const char *data, size_t data_len) { req.body.append(data, data_len); return true; }); if (ret) { offset += data_len; } else { ok = false; } } return ok; }; data_sink.is_writable = [&](void) { return ok && true; }; while (ok && offset < content_length) { if (!content_provider(offset, content_length - offset, data_sink)) { error = Error::Canceled; return nullptr; } } } else { if (!compressor.compress(body, content_length, true, [&](const char *data, size_t data_len) { req.body.append(data, data_len); return true; })) { error = Error::Compression; return nullptr; } } } else #endif { if (content_provider) { req.content_length_ = content_length; req.content_provider_ = std::move(content_provider); req.is_chunked_content_provider_ = false; } else if (content_provider_without_length) { req.content_length_ = 0; req.content_provider_ = detail::ContentProviderAdapter( std::move(content_provider_without_length)); req.is_chunked_content_provider_ = true; req.headers.emplace("Transfer-Encoding", "chunked"); } else { req.body.assign(body, content_length); ; } } auto res = detail::make_unique(); return send(req, *res, error) ? std::move(res) : nullptr; } inline Result ClientImpl::send_with_content_provider( const char *method, const char *path, const Headers &headers, const char *body, size_t content_length, ContentProvider content_provider, ContentProviderWithoutLength content_provider_without_length, const char *content_type) { Request req; req.method = method; req.headers = headers; req.path = path; auto error = Error::Success; auto res = send_with_content_provider( req, // method, path, headers, body, content_length, std::move(content_provider), std::move(content_provider_without_length), content_type, error); return Result{std::move(res), error, std::move(req.headers)}; } inline std::string ClientImpl::adjust_host_string(const std::string &host) const { if (host.find(':') != std::string::npos) { return "[" + host + "]"; } return host; } inline bool ClientImpl::process_request(Stream &strm, Request &req, Response &res, bool close_connection, Error &error) { // Send request if (!write_request(strm, req, close_connection, error)) { return false; } // Receive response and headers if (!read_response_line(strm, req, res) || !detail::read_headers(strm, res.headers)) { error = Error::Read; return false; } // Body if ((res.status != 204) && req.method != "HEAD" && req.method != "CONNECT") { auto redirect = 300 < res.status && res.status < 400 && follow_location_; if (req.response_handler && !redirect) { if (!req.response_handler(res)) { error = Error::Canceled; return false; } } auto out = req.content_receiver ? static_cast( [&](const char *buf, size_t n, uint64_t off, uint64_t len) { if (redirect) { return true; } auto ret = req.content_receiver(buf, n, off, len); if (!ret) { error = Error::Canceled; } return ret; }) : static_cast( [&](const char *buf, size_t n, uint64_t /*off*/, uint64_t /*len*/) { if (res.body.size() + n > res.body.max_size()) { return false; } res.body.append(buf, n); return true; }); auto progress = [&](uint64_t current, uint64_t total) { if (!req.progress || redirect) { return true; } auto ret = req.progress(current, total); if (!ret) { error = Error::Canceled; } return ret; }; int dummy_status; if (!detail::read_content(strm, res, (std::numeric_limits::max)(), dummy_status, std::move(progress), std::move(out), decompress_)) { if (error != Error::Canceled) { error = Error::Read; } return false; } } if (res.get_header_value("Connection") == "close" || (res.version == "HTTP/1.0" && res.reason != "Connection established")) { // TODO this requires a not-entirely-obvious chain of calls to be correct // for this to be safe. Maybe a code refactor (such as moving this out to // the send function and getting rid of the recursiveness of the mutex) // could make this more obvious. // This is safe to call because process_request is only called by // handle_request which is only called by send, which locks the request // mutex during the process. It would be a bug to call it from a different // thread since it's a thread-safety issue to do these things to the socket // if another thread is using the socket. std::lock_guard guard(socket_mutex_); shutdown_ssl(socket_, true); shutdown_socket(socket_); close_socket(socket_); } // Log if (logger_) { logger_(req, res); } return true; } inline bool ClientImpl::process_socket(const Socket &socket, std::function callback) { return detail::process_client_socket( socket.sock, read_timeout_sec_, read_timeout_usec_, write_timeout_sec_, write_timeout_usec_, std::move(callback)); } inline bool ClientImpl::is_ssl() const { return false; } inline Result ClientImpl::Get(const char *path) { return Get(path, Headers(), Progress()); } inline Result ClientImpl::Get(const char *path, Progress progress) { return Get(path, Headers(), std::move(progress)); } inline Result ClientImpl::Get(const char *path, const Headers &headers) { return Get(path, headers, Progress()); } inline Result ClientImpl::Get(const char *path, const Headers &headers, Progress progress) { Request req; req.method = "GET"; req.path = path; req.headers = headers; req.progress = std::move(progress); return send_(std::move(req)); } inline Result ClientImpl::Get(const char *path, ContentReceiver content_receiver) { return Get(path, Headers(), nullptr, std::move(content_receiver), nullptr); } inline Result ClientImpl::Get(const char *path, ContentReceiver content_receiver, Progress progress) { return Get(path, Headers(), nullptr, std::move(content_receiver), std::move(progress)); } inline Result ClientImpl::Get(const char *path, const Headers &headers, ContentReceiver content_receiver) { return Get(path, headers, nullptr, std::move(content_receiver), nullptr); } inline Result ClientImpl::Get(const char *path, const Headers &headers, ContentReceiver content_receiver, Progress progress) { return Get(path, headers, nullptr, std::move(content_receiver), std::move(progress)); } inline Result ClientImpl::Get(const char *path, ResponseHandler response_handler, ContentReceiver content_receiver) { return Get(path, Headers(), std::move(response_handler), std::move(content_receiver), nullptr); } inline Result ClientImpl::Get(const char *path, const Headers &headers, ResponseHandler response_handler, ContentReceiver content_receiver) { return Get(path, headers, std::move(response_handler), std::move(content_receiver), nullptr); } inline Result ClientImpl::Get(const char *path, ResponseHandler response_handler, ContentReceiver content_receiver, Progress progress) { return Get(path, Headers(), std::move(response_handler), std::move(content_receiver), std::move(progress)); } inline Result ClientImpl::Get(const char *path, const Headers &headers, ResponseHandler response_handler, ContentReceiver content_receiver, Progress progress) { Request req; req.method = "GET"; req.path = path; req.headers = headers; req.response_handler = std::move(response_handler); req.content_receiver = [content_receiver](const char *data, size_t data_length, uint64_t /*offset*/, uint64_t /*total_length*/) { return content_receiver(data, data_length); }; req.progress = std::move(progress); return send_(std::move(req)); } inline Result ClientImpl::Get(const char *path, const Params ¶ms, const Headers &headers, Progress progress) { if (params.empty()) { return Get(path, headers); } std::string path_with_query = append_query_params(path, params); return Get(path_with_query.c_str(), headers, progress); } inline Result ClientImpl::Get(const char *path, const Params ¶ms, const Headers &headers, ContentReceiver content_receiver, Progress progress) { return Get(path, params, headers, nullptr, content_receiver, progress); } inline Result ClientImpl::Get(const char *path, const Params ¶ms, const Headers &headers, ResponseHandler response_handler, ContentReceiver content_receiver, Progress progress) { if (params.empty()) { return Get(path, headers, response_handler, content_receiver, progress); } std::string path_with_query = append_query_params(path, params); return Get(path_with_query.c_str(), headers, response_handler, content_receiver, progress); } inline Result ClientImpl::Head(const char *path) { return Head(path, Headers()); } inline Result ClientImpl::Head(const char *path, const Headers &headers) { Request req; req.method = "HEAD"; req.headers = headers; req.path = path; return send_(std::move(req)); } inline Result ClientImpl::Post(const char *path) { return Post(path, std::string(), nullptr); } inline Result ClientImpl::Post(const char *path, const char *body, size_t content_length, const char *content_type) { return Post(path, Headers(), body, content_length, content_type); } inline Result ClientImpl::Post(const char *path, const Headers &headers, const char *body, size_t content_length, const char *content_type) { return send_with_content_provider("POST", path, headers, body, content_length, nullptr, nullptr, content_type); } inline Result ClientImpl::Post(const char *path, const std::string &body, const char *content_type) { return Post(path, Headers(), body, content_type); } inline Result ClientImpl::Post(const char *path, const Headers &headers, const std::string &body, const char *content_type) { return send_with_content_provider("POST", path, headers, body.data(), body.size(), nullptr, nullptr, content_type); } inline Result ClientImpl::Post(const char *path, const Params ¶ms) { return Post(path, Headers(), params); } inline Result ClientImpl::Post(const char *path, size_t content_length, ContentProvider content_provider, const char *content_type) { return Post(path, Headers(), content_length, std::move(content_provider), content_type); } inline Result ClientImpl::Post(const char *path, ContentProviderWithoutLength content_provider, const char *content_type) { return Post(path, Headers(), std::move(content_provider), content_type); } inline Result ClientImpl::Post(const char *path, const Headers &headers, size_t content_length, ContentProvider content_provider, const char *content_type) { return send_with_content_provider("POST", path, headers, nullptr, content_length, std::move(content_provider), nullptr, content_type); } inline Result ClientImpl::Post(const char *path, const Headers &headers, ContentProviderWithoutLength content_provider, const char *content_type) { return send_with_content_provider("POST", path, headers, nullptr, 0, nullptr, std::move(content_provider), content_type); } inline Result ClientImpl::Post(const char *path, const Headers &headers, const Params ¶ms) { auto query = detail::params_to_query_str(params); return Post(path, headers, query, "application/x-www-form-urlencoded"); } inline Result ClientImpl::Post(const char *path, const MultipartFormDataItems &items) { return Post(path, Headers(), items); } inline Result ClientImpl::Post(const char *path, const Headers &headers, const MultipartFormDataItems &items) { return Post(path, headers, items, detail::make_multipart_data_boundary()); } inline Result ClientImpl::Post(const char *path, const Headers &headers, const MultipartFormDataItems &items, const std::string &boundary) { for (size_t i = 0; i < boundary.size(); i++) { char c = boundary[i]; if (!std::isalnum(c) && c != '-' && c != '_') { return Result{nullptr, Error::UnsupportedMultipartBoundaryChars}; } } std::string body; for (const auto &item : items) { body += "--" + boundary + "\r\n"; body += "Content-Disposition: form-data; name=\"" + item.name + "\""; if (!item.filename.empty()) { body += "; filename=\"" + item.filename + "\""; } body += "\r\n"; if (!item.content_type.empty()) { body += "Content-Type: " + item.content_type + "\r\n"; } body += "\r\n"; body += item.content + "\r\n"; } body += "--" + boundary + "--\r\n"; std::string content_type = "multipart/form-data; boundary=" + boundary; return Post(path, headers, body, content_type.c_str()); } inline Result ClientImpl::Put(const char *path) { return Put(path, std::string(), nullptr); } inline Result ClientImpl::Put(const char *path, const char *body, size_t content_length, const char *content_type) { return Put(path, Headers(), body, content_length, content_type); } inline Result ClientImpl::Put(const char *path, const Headers &headers, const char *body, size_t content_length, const char *content_type) { return send_with_content_provider("PUT", path, headers, body, content_length, nullptr, nullptr, content_type); } inline Result ClientImpl::Put(const char *path, const std::string &body, const char *content_type) { return Put(path, Headers(), body, content_type); } inline Result ClientImpl::Put(const char *path, const Headers &headers, const std::string &body, const char *content_type) { return send_with_content_provider("PUT", path, headers, body.data(), body.size(), nullptr, nullptr, content_type); } inline Result ClientImpl::Put(const char *path, size_t content_length, ContentProvider content_provider, const char *content_type) { return Put(path, Headers(), content_length, std::move(content_provider), content_type); } inline Result ClientImpl::Put(const char *path, ContentProviderWithoutLength content_provider, const char *content_type) { return Put(path, Headers(), std::move(content_provider), content_type); } inline Result ClientImpl::Put(const char *path, const Headers &headers, size_t content_length, ContentProvider content_provider, const char *content_type) { return send_with_content_provider("PUT", path, headers, nullptr, content_length, std::move(content_provider), nullptr, content_type); } inline Result ClientImpl::Put(const char *path, const Headers &headers, ContentProviderWithoutLength content_provider, const char *content_type) { return send_with_content_provider("PUT", path, headers, nullptr, 0, nullptr, std::move(content_provider), content_type); } inline Result ClientImpl::Put(const char *path, const Params ¶ms) { return Put(path, Headers(), params); } inline Result ClientImpl::Put(const char *path, const Headers &headers, const Params ¶ms) { auto query = detail::params_to_query_str(params); return Put(path, headers, query, "application/x-www-form-urlencoded"); } inline Result ClientImpl::Patch(const char *path) { return Patch(path, std::string(), nullptr); } inline Result ClientImpl::Patch(const char *path, const char *body, size_t content_length, const char *content_type) { return Patch(path, Headers(), body, content_length, content_type); } inline Result ClientImpl::Patch(const char *path, const Headers &headers, const char *body, size_t content_length, const char *content_type) { return send_with_content_provider("PATCH", path, headers, body, content_length, nullptr, nullptr, content_type); } inline Result ClientImpl::Patch(const char *path, const std::string &body, const char *content_type) { return Patch(path, Headers(), body, content_type); } inline Result ClientImpl::Patch(const char *path, const Headers &headers, const std::string &body, const char *content_type) { return send_with_content_provider("PATCH", path, headers, body.data(), body.size(), nullptr, nullptr, content_type); } inline Result ClientImpl::Patch(const char *path, size_t content_length, ContentProvider content_provider, const char *content_type) { return Patch(path, Headers(), content_length, std::move(content_provider), content_type); } inline Result ClientImpl::Patch(const char *path, ContentProviderWithoutLength content_provider, const char *content_type) { return Patch(path, Headers(), std::move(content_provider), content_type); } inline Result ClientImpl::Patch(const char *path, const Headers &headers, size_t content_length, ContentProvider content_provider, const char *content_type) { return send_with_content_provider("PATCH", path, headers, nullptr, content_length, std::move(content_provider), nullptr, content_type); } inline Result ClientImpl::Patch(const char *path, const Headers &headers, ContentProviderWithoutLength content_provider, const char *content_type) { return send_with_content_provider("PATCH", path, headers, nullptr, 0, nullptr, std::move(content_provider), content_type); } inline Result ClientImpl::Delete(const char *path) { return Delete(path, Headers(), std::string(), nullptr); } inline Result ClientImpl::Delete(const char *path, const Headers &headers) { return Delete(path, headers, std::string(), nullptr); } inline Result ClientImpl::Delete(const char *path, const char *body, size_t content_length, const char *content_type) { return Delete(path, Headers(), body, content_length, content_type); } inline Result ClientImpl::Delete(const char *path, const Headers &headers, const char *body, size_t content_length, const char *content_type) { Request req; req.method = "DELETE"; req.headers = headers; req.path = path; if (content_type) { req.headers.emplace("Content-Type", content_type); } req.body.assign(body, content_length); return send_(std::move(req)); } inline Result ClientImpl::Delete(const char *path, const std::string &body, const char *content_type) { return Delete(path, Headers(), body.data(), body.size(), content_type); } inline Result ClientImpl::Delete(const char *path, const Headers &headers, const std::string &body, const char *content_type) { return Delete(path, headers, body.data(), body.size(), content_type); } inline Result ClientImpl::Options(const char *path) { return Options(path, Headers()); } inline Result ClientImpl::Options(const char *path, const Headers &headers) { Request req; req.method = "OPTIONS"; req.headers = headers; req.path = path; return send_(std::move(req)); } inline size_t ClientImpl::is_socket_open() const { std::lock_guard guard(socket_mutex_); return socket_.is_open(); } inline void ClientImpl::stop() { std::lock_guard guard(socket_mutex_); // If there is anything ongoing right now, the ONLY thread-safe thing we can // do is to shutdown_socket, so that threads using this socket suddenly // discover they can't read/write any more and error out. Everything else // (closing the socket, shutting ssl down) is unsafe because these actions are // not thread-safe. if (socket_requests_in_flight_ > 0) { shutdown_socket(socket_); // Aside from that, we set a flag for the socket to be closed when we're // done. socket_should_be_closed_when_request_is_done_ = true; return; } // Otherwise, sitll holding the mutex, we can shut everything down ourselves shutdown_ssl(socket_, true); shutdown_socket(socket_); close_socket(socket_); } inline void ClientImpl::set_connection_timeout(time_t sec, time_t usec) { connection_timeout_sec_ = sec; connection_timeout_usec_ = usec; } inline void ClientImpl::set_read_timeout(time_t sec, time_t usec) { read_timeout_sec_ = sec; read_timeout_usec_ = usec; } inline void ClientImpl::set_write_timeout(time_t sec, time_t usec) { write_timeout_sec_ = sec; write_timeout_usec_ = usec; } inline void ClientImpl::set_basic_auth(const char *username, const char *password) { basic_auth_username_ = username; basic_auth_password_ = password; } inline void ClientImpl::set_bearer_token_auth(const char *token) { bearer_token_auth_token_ = token; } #ifdef CPPHTTPLIB_OPENSSL_SUPPORT inline void ClientImpl::set_digest_auth(const char *username, const char *password) { digest_auth_username_ = username; digest_auth_password_ = password; } #endif inline void ClientImpl::set_keep_alive(bool on) { keep_alive_ = on; } inline void ClientImpl::set_follow_location(bool on) { follow_location_ = on; } inline void ClientImpl::set_url_encode(bool on) { url_encode_ = on; } inline void ClientImpl::set_hostname_addr_map( const std::map addr_map) { addr_map_ = std::move(addr_map); } inline void ClientImpl::set_default_headers(Headers headers) { default_headers_ = std::move(headers); } inline void ClientImpl::set_address_family(int family) { address_family_ = family; } inline void ClientImpl::set_tcp_nodelay(bool on) { tcp_nodelay_ = on; } inline void ClientImpl::set_socket_options(SocketOptions socket_options) { socket_options_ = std::move(socket_options); } inline void ClientImpl::set_compress(bool on) { compress_ = on; } inline void ClientImpl::set_decompress(bool on) { decompress_ = on; } inline void ClientImpl::set_interface(const char *intf) { interface_ = intf; } inline void ClientImpl::set_proxy(const char *host, int port) { proxy_host_ = host; proxy_port_ = port; } inline void ClientImpl::set_proxy_basic_auth(const char *username, const char *password) { proxy_basic_auth_username_ = username; proxy_basic_auth_password_ = password; } inline void ClientImpl::set_proxy_bearer_token_auth(const char *token) { proxy_bearer_token_auth_token_ = token; } #ifdef CPPHTTPLIB_OPENSSL_SUPPORT inline void ClientImpl::set_proxy_digest_auth(const char *username, const char *password) { proxy_digest_auth_username_ = username; proxy_digest_auth_password_ = password; } #endif #ifdef CPPHTTPLIB_OPENSSL_SUPPORT inline void ClientImpl::set_ca_cert_path(const char *ca_cert_file_path, const char *ca_cert_dir_path) { if (ca_cert_file_path) { ca_cert_file_path_ = ca_cert_file_path; } if (ca_cert_dir_path) { ca_cert_dir_path_ = ca_cert_dir_path; } } inline void ClientImpl::set_ca_cert_store(X509_STORE *ca_cert_store) { if (ca_cert_store && ca_cert_store != ca_cert_store_) { ca_cert_store_ = ca_cert_store; } } #endif #ifdef CPPHTTPLIB_OPENSSL_SUPPORT inline void ClientImpl::enable_server_certificate_verification(bool enabled) { server_certificate_verification_ = enabled; } #endif inline void ClientImpl::set_logger(Logger logger) { logger_ = std::move(logger); } /* * SSL Implementation */ #ifdef CPPHTTPLIB_OPENSSL_SUPPORT namespace detail { template inline SSL *ssl_new(socket_t sock, SSL_CTX *ctx, std::mutex &ctx_mutex, U SSL_connect_or_accept, V setup) { SSL *ssl = nullptr; { std::lock_guard guard(ctx_mutex); ssl = SSL_new(ctx); } if (ssl) { set_nonblocking(sock, true); auto bio = BIO_new_socket(static_cast(sock), BIO_NOCLOSE); BIO_set_nbio(bio, 1); SSL_set_bio(ssl, bio, bio); if (!setup(ssl) || SSL_connect_or_accept(ssl) != 1) { SSL_shutdown(ssl); { std::lock_guard guard(ctx_mutex); SSL_free(ssl); } set_nonblocking(sock, false); return nullptr; } BIO_set_nbio(bio, 0); set_nonblocking(sock, false); } return ssl; } inline void ssl_delete(std::mutex &ctx_mutex, SSL *ssl, bool shutdown_gracefully) { // sometimes we may want to skip this to try to avoid SIGPIPE if we know // the remote has closed the network connection // Note that it is not always possible to avoid SIGPIPE, this is merely a // best-efforts. if (shutdown_gracefully) { SSL_shutdown(ssl); } std::lock_guard guard(ctx_mutex); SSL_free(ssl); } template bool ssl_connect_or_accept_nonblocking(socket_t sock, SSL *ssl, U ssl_connect_or_accept, time_t timeout_sec, time_t timeout_usec) { int res = 0; while ((res = ssl_connect_or_accept(ssl)) != 1) { auto err = SSL_get_error(ssl, res); switch (err) { case SSL_ERROR_WANT_READ: if (select_read(sock, timeout_sec, timeout_usec) > 0) { continue; } break; case SSL_ERROR_WANT_WRITE: if (select_write(sock, timeout_sec, timeout_usec) > 0) { continue; } break; default: break; } return false; } return true; } template inline bool process_server_socket_ssl( const std::atomic &svr_sock, SSL *ssl, socket_t sock, size_t keep_alive_max_count, time_t keep_alive_timeout_sec, time_t read_timeout_sec, time_t read_timeout_usec, time_t write_timeout_sec, time_t write_timeout_usec, T callback) { return process_server_socket_core( svr_sock, sock, keep_alive_max_count, keep_alive_timeout_sec, [&](bool close_connection, bool &connection_closed) { SSLSocketStream strm(sock, ssl, read_timeout_sec, read_timeout_usec, write_timeout_sec, write_timeout_usec); return callback(strm, close_connection, connection_closed); }); } template inline bool process_client_socket_ssl(SSL *ssl, socket_t sock, time_t read_timeout_sec, time_t read_timeout_usec, time_t write_timeout_sec, time_t write_timeout_usec, T callback) { SSLSocketStream strm(sock, ssl, read_timeout_sec, read_timeout_usec, write_timeout_sec, write_timeout_usec); return callback(strm); } #if OPENSSL_VERSION_NUMBER < 0x10100000L static std::shared_ptr> openSSL_locks_; class SSLThreadLocks { public: SSLThreadLocks() { openSSL_locks_ = std::make_shared>(CRYPTO_num_locks()); CRYPTO_set_locking_callback(locking_callback); } ~SSLThreadLocks() { CRYPTO_set_locking_callback(nullptr); } private: static void locking_callback(int mode, int type, const char * /*file*/, int /*line*/) { auto &lk = (*openSSL_locks_)[static_cast(type)]; if (mode & CRYPTO_LOCK) { lk.lock(); } else { lk.unlock(); } } }; #endif class SSLInit { public: SSLInit() { #if OPENSSL_VERSION_NUMBER < 0x1010001fL SSL_load_error_strings(); SSL_library_init(); #else OPENSSL_init_ssl( OPENSSL_INIT_LOAD_SSL_STRINGS | OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL); #endif } ~SSLInit() { #if OPENSSL_VERSION_NUMBER < 0x1010001fL ERR_free_strings(); #endif } private: #if OPENSSL_VERSION_NUMBER < 0x10100000L SSLThreadLocks thread_init_; #endif }; // SSL socket stream implementation inline SSLSocketStream::SSLSocketStream(socket_t sock, SSL *ssl, time_t read_timeout_sec, time_t read_timeout_usec, time_t write_timeout_sec, time_t write_timeout_usec) : sock_(sock), ssl_(ssl), read_timeout_sec_(read_timeout_sec), read_timeout_usec_(read_timeout_usec), write_timeout_sec_(write_timeout_sec), write_timeout_usec_(write_timeout_usec) { SSL_clear_mode(ssl, SSL_MODE_AUTO_RETRY); } inline SSLSocketStream::~SSLSocketStream() {} inline bool SSLSocketStream::is_readable() const { return detail::select_read(sock_, read_timeout_sec_, read_timeout_usec_) > 0; } inline bool SSLSocketStream::is_writable() const { return detail::select_write(sock_, write_timeout_sec_, write_timeout_usec_) > 0; } inline ssize_t SSLSocketStream::read(char *ptr, size_t size) { if (SSL_pending(ssl_) > 0) { return SSL_read(ssl_, ptr, static_cast(size)); } else if (is_readable()) { auto ret = SSL_read(ssl_, ptr, static_cast(size)); if (ret < 0) { auto err = SSL_get_error(ssl_, ret); int n = 1000; #ifdef _WIN32 while (--n >= 0 && (err == SSL_ERROR_WANT_READ || (err == SSL_ERROR_SYSCALL && WSAGetLastError() == WSAETIMEDOUT))) { #else while (--n >= 0 && err == SSL_ERROR_WANT_READ) { #endif if (SSL_pending(ssl_) > 0) { return SSL_read(ssl_, ptr, static_cast(size)); } else if (is_readable()) { std::this_thread::sleep_for(std::chrono::milliseconds(1)); ret = SSL_read(ssl_, ptr, static_cast(size)); if (ret >= 0) { return ret; } err = SSL_get_error(ssl_, ret); } else { return -1; } } } return ret; } return -1; } inline ssize_t SSLSocketStream::write(const char *ptr, size_t size) { if (is_writable()) { auto ret = SSL_write(ssl_, ptr, static_cast(size)); if (ret < 0) { auto err = SSL_get_error(ssl_, ret); int n = 1000; #ifdef _WIN32 while (--n >= 0 && (err == SSL_ERROR_WANT_WRITE || (err == SSL_ERROR_SYSCALL && WSAGetLastError() == WSAETIMEDOUT))) { #else while (--n >= 0 && err == SSL_ERROR_WANT_WRITE) { #endif if (is_writable()) { std::this_thread::sleep_for(std::chrono::milliseconds(1)); ret = SSL_write(ssl_, ptr, static_cast(size)); if (ret >= 0) { return ret; } err = SSL_get_error(ssl_, ret); } else { return -1; } } } return ret; } return -1; } inline void SSLSocketStream::get_remote_ip_and_port(std::string &ip, int &port) const { detail::get_remote_ip_and_port(sock_, ip, port); } inline socket_t SSLSocketStream::socket() const { return sock_; } static SSLInit sslinit_; } // namespace detail // SSL HTTP server implementation inline SSLServer::SSLServer(const char *cert_path, const char *private_key_path, const char *client_ca_cert_file_path, const char *client_ca_cert_dir_path) { ctx_ = SSL_CTX_new(TLS_server_method()); if (ctx_) { SSL_CTX_set_options(ctx_, SSL_OP_NO_COMPRESSION | SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION); SSL_CTX_set_min_proto_version(ctx_, TLS1_1_VERSION); 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) { 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, nullptr); } } } inline SSLServer::SSLServer(X509 *cert, EVP_PKEY *private_key, X509_STORE *client_ca_cert_store) { ctx_ = SSL_CTX_new(TLS_server_method()); if (ctx_) { SSL_CTX_set_options(ctx_, SSL_OP_NO_COMPRESSION | SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION); SSL_CTX_set_min_proto_version(ctx_, TLS1_1_VERSION); if (SSL_CTX_use_certificate(ctx_, cert) != 1 || SSL_CTX_use_PrivateKey(ctx_, private_key) != 1) { SSL_CTX_free(ctx_); ctx_ = nullptr; } else if (client_ca_cert_store) { SSL_CTX_set_cert_store(ctx_, client_ca_cert_store); SSL_CTX_set_verify( ctx_, SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT, nullptr); } } } inline SSLServer::SSLServer( const std::function &setup_ssl_ctx_callback) { ctx_ = SSL_CTX_new(TLS_method()); if (ctx_) { if (!setup_ssl_ctx_callback(*ctx_)) { SSL_CTX_free(ctx_); ctx_ = nullptr; } } } inline SSLServer::~SSLServer() { if (ctx_) { SSL_CTX_free(ctx_); } } inline bool SSLServer::is_valid() const { return ctx_; } inline SSL_CTX *SSLServer::ssl_context() const { return ctx_; } inline bool SSLServer::process_and_close_socket(socket_t sock) { auto ssl = detail::ssl_new( sock, ctx_, ctx_mutex_, [&](SSL *ssl) { return detail::ssl_connect_or_accept_nonblocking( sock, ssl, SSL_accept, read_timeout_sec_, read_timeout_usec_); }, [](SSL * /*ssl*/) { return true; }); bool ret = false; if (ssl) { ret = detail::process_server_socket_ssl( svr_sock_, ssl, sock, keep_alive_max_count_, keep_alive_timeout_sec_, read_timeout_sec_, read_timeout_usec_, write_timeout_sec_, write_timeout_usec_, [this, ssl](Stream &strm, bool close_connection, bool &connection_closed) { return process_request(strm, close_connection, connection_closed, [&](Request &req) { req.ssl = ssl; }); }); // Shutdown gracefully if the result seemed successful, non-gracefully if // the connection appeared to be closed. const bool shutdown_gracefully = ret; detail::ssl_delete(ctx_mutex_, ssl, shutdown_gracefully); } detail::shutdown_socket(sock); detail::close_socket(sock); return ret; } // SSL HTTP client implementation inline SSLClient::SSLClient(const std::string &host) : SSLClient(host, 443, std::string(), std::string()) {} inline SSLClient::SSLClient(const std::string &host, int port) : SSLClient(host, port, std::string(), std::string()) {} inline SSLClient::SSLClient(const std::string &host, int port, const std::string &client_cert_path, const std::string &client_key_path) : ClientImpl(host, port, client_cert_path, client_key_path) { ctx_ = SSL_CTX_new(TLS_client_method()); detail::split(&host_[0], &host_[host_.size()], '.', [&](const char *b, const char *e) { host_components_.emplace_back(std::string(b, e)); }); if (!client_cert_path.empty() && !client_key_path.empty()) { if (SSL_CTX_use_certificate_file(ctx_, client_cert_path.c_str(), SSL_FILETYPE_PEM) != 1 || SSL_CTX_use_PrivateKey_file(ctx_, client_key_path.c_str(), SSL_FILETYPE_PEM) != 1) { SSL_CTX_free(ctx_); ctx_ = nullptr; } } } inline SSLClient::SSLClient(const std::string &host, int port, X509 *client_cert, EVP_PKEY *client_key) : ClientImpl(host, port) { ctx_ = SSL_CTX_new(TLS_client_method()); detail::split(&host_[0], &host_[host_.size()], '.', [&](const char *b, const char *e) { host_components_.emplace_back(std::string(b, e)); }); if (client_cert != nullptr && client_key != nullptr) { if (SSL_CTX_use_certificate(ctx_, client_cert) != 1 || SSL_CTX_use_PrivateKey(ctx_, client_key) != 1) { SSL_CTX_free(ctx_); ctx_ = nullptr; } } } inline SSLClient::~SSLClient() { if (ctx_) { SSL_CTX_free(ctx_); } // Make sure to shut down SSL since shutdown_ssl will resolve to the // base function rather than the derived function once we get to the // base class destructor, and won't free the SSL (causing a leak). shutdown_ssl_impl(socket_, true); } inline bool SSLClient::is_valid() const { return ctx_; } inline void SSLClient::set_ca_cert_store(X509_STORE *ca_cert_store) { if (ca_cert_store) { if (ctx_) { if (SSL_CTX_get_cert_store(ctx_) != ca_cert_store) { // Free memory allocated for old cert and use new store `ca_cert_store` SSL_CTX_set_cert_store(ctx_, ca_cert_store); } } else { X509_STORE_free(ca_cert_store); } } } inline long SSLClient::get_openssl_verify_result() const { return verify_result_; } inline SSL_CTX *SSLClient::ssl_context() const { return ctx_; } inline bool SSLClient::create_and_connect_socket(Socket &socket, Error &error) { return is_valid() && ClientImpl::create_and_connect_socket(socket, error); } // Assumes that socket_mutex_ is locked and that there are no requests in flight inline bool SSLClient::connect_with_proxy(Socket &socket, Response &res, bool &success, Error &error) { success = true; Response res2; if (!detail::process_client_socket( socket.sock, read_timeout_sec_, read_timeout_usec_, write_timeout_sec_, write_timeout_usec_, [&](Stream &strm) { Request req2; req2.method = "CONNECT"; req2.path = host_and_port_; return process_request(strm, req2, res2, false, error); })) { // Thread-safe to close everything because we are assuming there are no // requests in flight shutdown_ssl(socket, true); shutdown_socket(socket); close_socket(socket); success = false; return false; } if (res2.status == 407) { if (!proxy_digest_auth_username_.empty() && !proxy_digest_auth_password_.empty()) { std::map auth; if (detail::parse_www_authenticate(res2, auth, true)) { Response res3; if (!detail::process_client_socket( socket.sock, read_timeout_sec_, read_timeout_usec_, write_timeout_sec_, write_timeout_usec_, [&](Stream &strm) { Request req3; req3.method = "CONNECT"; req3.path = host_and_port_; req3.headers.insert(detail::make_digest_authentication_header( req3, auth, 1, detail::random_string(10), proxy_digest_auth_username_, proxy_digest_auth_password_, true)); return process_request(strm, req3, res3, false, error); })) { // Thread-safe to close everything because we are assuming there are // no requests in flight shutdown_ssl(socket, true); shutdown_socket(socket); close_socket(socket); success = false; return false; } } } else { res = res2; return false; } } return true; } inline bool SSLClient::load_certs() { bool ret = true; std::call_once(initialize_cert_, [&]() { std::lock_guard guard(ctx_mutex_); if (!ca_cert_file_path_.empty()) { if (!SSL_CTX_load_verify_locations(ctx_, ca_cert_file_path_.c_str(), nullptr)) { ret = false; } } else if (!ca_cert_dir_path_.empty()) { if (!SSL_CTX_load_verify_locations(ctx_, nullptr, ca_cert_dir_path_.c_str())) { ret = false; } } else { #ifdef _WIN32 detail::load_system_certs_on_windows(SSL_CTX_get_cert_store(ctx_)); #else SSL_CTX_set_default_verify_paths(ctx_); #endif } }); return ret; } inline bool SSLClient::initialize_ssl(Socket &socket, Error &error) { auto ssl = detail::ssl_new( socket.sock, ctx_, ctx_mutex_, [&](SSL *ssl) { if (server_certificate_verification_) { if (!load_certs()) { error = Error::SSLLoadingCerts; return false; } SSL_set_verify(ssl, SSL_VERIFY_NONE, nullptr); } if (!detail::ssl_connect_or_accept_nonblocking( socket.sock, ssl, SSL_connect, connection_timeout_sec_, connection_timeout_usec_)) { error = Error::SSLConnection; return false; } if (server_certificate_verification_) { verify_result_ = SSL_get_verify_result(ssl); if (verify_result_ != X509_V_OK) { error = Error::SSLServerVerification; return false; } auto server_cert = SSL_get_peer_certificate(ssl); if (server_cert == nullptr) { error = Error::SSLServerVerification; return false; } if (!verify_host(server_cert)) { X509_free(server_cert); error = Error::SSLServerVerification; return false; } X509_free(server_cert); } return true; }, [&](SSL *ssl) { SSL_set_tlsext_host_name(ssl, host_.c_str()); return true; }); if (ssl) { socket.ssl = ssl; return true; } shutdown_socket(socket); close_socket(socket); return false; } inline void SSLClient::shutdown_ssl(Socket &socket, bool shutdown_gracefully) { shutdown_ssl_impl(socket, shutdown_gracefully); } inline void SSLClient::shutdown_ssl_impl(Socket &socket, bool shutdown_gracefully) { if (socket.sock == INVALID_SOCKET) { assert(socket.ssl == nullptr); return; } if (socket.ssl) { detail::ssl_delete(ctx_mutex_, socket.ssl, shutdown_gracefully); socket.ssl = nullptr; } assert(socket.ssl == nullptr); } inline bool SSLClient::process_socket(const Socket &socket, std::function callback) { assert(socket.ssl); return detail::process_client_socket_ssl( socket.ssl, socket.sock, read_timeout_sec_, read_timeout_usec_, write_timeout_sec_, write_timeout_usec_, std::move(callback)); } inline bool SSLClient::is_ssl() const { return true; } inline bool SSLClient::verify_host(X509 *server_cert) const { /* Quote from RFC2818 section 3.1 "Server Identity" If a subjectAltName extension of type dNSName is present, that MUST be used as the identity. Otherwise, the (most specific) Common Name field in the Subject field of the certificate MUST be used. Although the use of the Common Name is existing practice, it is deprecated and Certification Authorities are encouraged to use the dNSName instead. Matching is performed using the matching rules specified by [RFC2459]. If more than one identity of a given type is present in the certificate (e.g., more than one dNSName name, a match in any one of the set is considered acceptable.) Names may contain the wildcard character * which is considered to match any single domain name component or component fragment. E.g., *.a.com matches foo.a.com but not bar.foo.a.com. f*.com matches foo.com but not bar.com. In some cases, the URI is specified as an IP address rather than a hostname. In this case, the iPAddress subjectAltName must be present in the certificate and must exactly match the IP in the URI. */ return verify_host_with_subject_alt_name(server_cert) || verify_host_with_common_name(server_cert); } inline bool SSLClient::verify_host_with_subject_alt_name(X509 *server_cert) const { auto ret = false; auto type = GEN_DNS; struct in6_addr addr6; struct in_addr addr; size_t addr_len = 0; #ifndef __MINGW32__ if (inet_pton(AF_INET6, host_.c_str(), &addr6)) { type = GEN_IPADD; addr_len = sizeof(struct in6_addr); } else if (inet_pton(AF_INET, host_.c_str(), &addr)) { type = GEN_IPADD; addr_len = sizeof(struct in_addr); } #endif auto alt_names = static_cast( X509_get_ext_d2i(server_cert, NID_subject_alt_name, nullptr, nullptr)); if (alt_names) { auto dsn_matched = false; auto ip_mached = false; auto count = sk_GENERAL_NAME_num(alt_names); for (decltype(count) i = 0; i < count && !dsn_matched; i++) { auto val = sk_GENERAL_NAME_value(alt_names, i); if (val->type == type) { auto name = (const char *)ASN1_STRING_get0_data(val->d.ia5); auto name_len = (size_t)ASN1_STRING_length(val->d.ia5); switch (type) { case GEN_DNS: dsn_matched = check_host_name(name, name_len); break; case GEN_IPADD: if (!memcmp(&addr6, name, addr_len) || !memcmp(&addr, name, addr_len)) { ip_mached = true; } break; } } } if (dsn_matched || ip_mached) { ret = true; } } GENERAL_NAMES_free((STACK_OF(GENERAL_NAME) *)alt_names); return ret; } inline bool SSLClient::verify_host_with_common_name(X509 *server_cert) const { const auto subject_name = X509_get_subject_name(server_cert); if (subject_name != nullptr) { char name[BUFSIZ]; auto name_len = X509_NAME_get_text_by_NID(subject_name, NID_commonName, name, sizeof(name)); if (name_len != -1) { return check_host_name(name, static_cast(name_len)); } } return false; } inline bool SSLClient::check_host_name(const char *pattern, size_t pattern_len) const { if (host_.size() == pattern_len && host_ == pattern) { return true; } // Wildcard match // https://bugs.launchpad.net/ubuntu/+source/firefox-3.0/+bug/376484 std::vector pattern_components; detail::split(&pattern[0], &pattern[pattern_len], '.', [&](const char *b, const char *e) { pattern_components.emplace_back(std::string(b, e)); }); if (host_components_.size() != pattern_components.size()) { return false; } auto itr = pattern_components.begin(); for (const auto &h : host_components_) { auto &p = *itr; if (p != h && p != "*") { auto partial_match = (p.size() > 0 && p[p.size() - 1] == '*' && !p.compare(0, p.size() - 1, h)); if (!partial_match) { return false; } } ++itr; } return true; } #endif // Universal client implementation inline Client::Client(const std::string &scheme_host_port) : Client(scheme_host_port, std::string(), std::string()) {} inline Client::Client(const std::string &scheme_host_port, const std::string &client_cert_path, const std::string &client_key_path) { const static Regex re( R"((?:([a-z]+):\/\/)?(?:\[([\d:]+)\]|([^:/?#]+))(?::(\d+))?)"); Match m; if (duckdb_re2::RegexMatch(scheme_host_port, m, re)) { auto scheme = m[1].str(); #ifdef CPPHTTPLIB_OPENSSL_SUPPORT if (!scheme.empty() && (scheme != "http" && scheme != "https")) { #else if (!scheme.empty() && scheme != "http") { #endif #ifndef CPPHTTPLIB_NO_EXCEPTIONS std::string msg = "'" + scheme + "' scheme is not supported."; throw std::invalid_argument(msg); #endif return; } auto is_ssl = scheme == "https"; auto host = m[2].str(); if (host.empty()) { host = m[3].str(); } auto port_str = m[4].str(); auto port = !port_str.empty() ? std::stoi(port_str) : (is_ssl ? 443 : 80); if (is_ssl) { #ifdef CPPHTTPLIB_OPENSSL_SUPPORT cli_ = detail::make_unique(host.c_str(), port, client_cert_path, client_key_path); is_ssl_ = is_ssl; #endif } else { cli_ = detail::make_unique(host.c_str(), port, client_cert_path, client_key_path); } } else { cli_ = detail::make_unique(scheme_host_port, 80, client_cert_path, client_key_path); } } inline Client::Client(const std::string &host, int port) : cli_(detail::make_unique(host, port)) {} inline Client::Client(const std::string &host, int port, const std::string &client_cert_path, const std::string &client_key_path) : cli_(detail::make_unique(host, port, client_cert_path, client_key_path)) {} inline Client::~Client() {} inline bool Client::is_valid() const { return cli_ != nullptr && cli_->is_valid(); } inline Result Client::Get(const char *path) { return cli_->Get(path); } inline Result Client::Get(const char *path, const Headers &headers) { return cli_->Get(path, headers); } inline Result Client::Get(const char *path, Progress progress) { return cli_->Get(path, std::move(progress)); } inline Result Client::Get(const char *path, const Headers &headers, Progress progress) { return cli_->Get(path, headers, std::move(progress)); } inline Result Client::Get(const char *path, ContentReceiver content_receiver) { return cli_->Get(path, std::move(content_receiver)); } inline Result Client::Get(const char *path, const Headers &headers, ContentReceiver content_receiver) { return cli_->Get(path, headers, std::move(content_receiver)); } inline Result Client::Get(const char *path, ContentReceiver content_receiver, Progress progress) { return cli_->Get(path, std::move(content_receiver), std::move(progress)); } inline Result Client::Get(const char *path, const Headers &headers, ContentReceiver content_receiver, Progress progress) { return cli_->Get(path, headers, std::move(content_receiver), std::move(progress)); } inline Result Client::Get(const char *path, ResponseHandler response_handler, ContentReceiver content_receiver) { return cli_->Get(path, std::move(response_handler), std::move(content_receiver)); } inline Result Client::Get(const char *path, const Headers &headers, ResponseHandler response_handler, ContentReceiver content_receiver) { return cli_->Get(path, headers, std::move(response_handler), std::move(content_receiver)); } inline Result Client::Get(const char *path, ResponseHandler response_handler, ContentReceiver content_receiver, Progress progress) { return cli_->Get(path, std::move(response_handler), std::move(content_receiver), std::move(progress)); } inline Result Client::Get(const char *path, const Headers &headers, ResponseHandler response_handler, ContentReceiver content_receiver, Progress progress) { return cli_->Get(path, headers, std::move(response_handler), std::move(content_receiver), std::move(progress)); } inline Result Client::Get(const char *path, const Params ¶ms, const Headers &headers, Progress progress) { return cli_->Get(path, params, headers, progress); } inline Result Client::Get(const char *path, const Params ¶ms, const Headers &headers, ContentReceiver content_receiver, Progress progress) { return cli_->Get(path, params, headers, content_receiver, progress); } inline Result Client::Get(const char *path, const Params ¶ms, const Headers &headers, ResponseHandler response_handler, ContentReceiver content_receiver, Progress progress) { return cli_->Get(path, params, headers, response_handler, content_receiver, progress); } inline Result Client::Head(const char *path) { return cli_->Head(path); } inline Result Client::Head(const char *path, const Headers &headers) { return cli_->Head(path, headers); } inline Result Client::Post(const char *path) { return cli_->Post(path); } inline Result Client::Post(const char *path, const char *body, size_t content_length, const char *content_type) { return cli_->Post(path, body, content_length, content_type); } inline Result Client::Post(const char *path, const Headers &headers, const char *body, size_t content_length, const char *content_type) { return cli_->Post(path, headers, body, content_length, content_type); } inline Result Client::Post(const char *path, const std::string &body, const char *content_type) { return cli_->Post(path, body, content_type); } inline Result Client::Post(const char *path, const Headers &headers, const std::string &body, const char *content_type) { return cli_->Post(path, headers, body, content_type); } inline Result Client::Post(const char *path, size_t content_length, ContentProvider content_provider, const char *content_type) { return cli_->Post(path, content_length, std::move(content_provider), content_type); } inline Result Client::Post(const char *path, ContentProviderWithoutLength content_provider, const char *content_type) { return cli_->Post(path, std::move(content_provider), content_type); } inline Result Client::Post(const char *path, const Headers &headers, size_t content_length, ContentProvider content_provider, const char *content_type) { return cli_->Post(path, headers, content_length, std::move(content_provider), content_type); } inline Result Client::Post(const char *path, const Headers &headers, ContentProviderWithoutLength content_provider, const char *content_type) { return cli_->Post(path, headers, std::move(content_provider), content_type); } inline Result Client::Post(const char *path, const Params ¶ms) { return cli_->Post(path, params); } inline Result Client::Post(const char *path, const Headers &headers, const Params ¶ms) { return cli_->Post(path, headers, params); } inline Result Client::Post(const char *path, const MultipartFormDataItems &items) { return cli_->Post(path, items); } inline Result Client::Post(const char *path, const Headers &headers, const MultipartFormDataItems &items) { return cli_->Post(path, headers, items); } inline Result Client::Post(const char *path, const Headers &headers, const MultipartFormDataItems &items, const std::string &boundary) { return cli_->Post(path, headers, items, boundary); } inline Result Client::Put(const char *path) { return cli_->Put(path); } inline Result Client::Put(const char *path, const char *body, size_t content_length, const char *content_type) { return cli_->Put(path, body, content_length, content_type); } inline Result Client::Put(const char *path, const Headers &headers, const char *body, size_t content_length, const char *content_type) { return cli_->Put(path, headers, body, content_length, content_type); } inline Result Client::Put(const char *path, const std::string &body, const char *content_type) { return cli_->Put(path, body, content_type); } inline Result Client::Put(const char *path, const Headers &headers, const std::string &body, const char *content_type) { return cli_->Put(path, headers, body, content_type); } inline Result Client::Put(const char *path, size_t content_length, ContentProvider content_provider, const char *content_type) { return cli_->Put(path, content_length, std::move(content_provider), content_type); } inline Result Client::Put(const char *path, ContentProviderWithoutLength content_provider, const char *content_type) { return cli_->Put(path, std::move(content_provider), content_type); } inline Result Client::Put(const char *path, const Headers &headers, size_t content_length, ContentProvider content_provider, const char *content_type) { return cli_->Put(path, headers, content_length, std::move(content_provider), content_type); } inline Result Client::Put(const char *path, const Headers &headers, ContentProviderWithoutLength content_provider, const char *content_type) { return cli_->Put(path, headers, std::move(content_provider), content_type); } inline Result Client::Put(const char *path, const Params ¶ms) { return cli_->Put(path, params); } inline Result Client::Put(const char *path, const Headers &headers, const Params ¶ms) { return cli_->Put(path, headers, params); } inline Result Client::Patch(const char *path) { return cli_->Patch(path); } inline Result Client::Patch(const char *path, const char *body, size_t content_length, const char *content_type) { return cli_->Patch(path, body, content_length, content_type); } inline Result Client::Patch(const char *path, const Headers &headers, const char *body, size_t content_length, const char *content_type) { return cli_->Patch(path, headers, body, content_length, content_type); } inline Result Client::Patch(const char *path, const std::string &body, const char *content_type) { return cli_->Patch(path, body, content_type); } inline Result Client::Patch(const char *path, const Headers &headers, const std::string &body, const char *content_type) { return cli_->Patch(path, headers, body, content_type); } inline Result Client::Patch(const char *path, size_t content_length, ContentProvider content_provider, const char *content_type) { return cli_->Patch(path, content_length, std::move(content_provider), content_type); } inline Result Client::Patch(const char *path, ContentProviderWithoutLength content_provider, const char *content_type) { return cli_->Patch(path, std::move(content_provider), content_type); } inline Result Client::Patch(const char *path, const Headers &headers, size_t content_length, ContentProvider content_provider, const char *content_type) { return cli_->Patch(path, headers, content_length, std::move(content_provider), content_type); } inline Result Client::Patch(const char *path, const Headers &headers, ContentProviderWithoutLength content_provider, const char *content_type) { return cli_->Patch(path, headers, std::move(content_provider), content_type); } inline Result Client::Delete(const char *path) { return cli_->Delete(path); } inline Result Client::Delete(const char *path, const Headers &headers) { return cli_->Delete(path, headers); } inline Result Client::Delete(const char *path, const char *body, size_t content_length, const char *content_type) { return cli_->Delete(path, body, content_length, content_type); } inline Result Client::Delete(const char *path, const Headers &headers, const char *body, size_t content_length, const char *content_type) { return cli_->Delete(path, headers, body, content_length, content_type); } inline Result Client::Delete(const char *path, const std::string &body, const char *content_type) { return cli_->Delete(path, body, content_type); } inline Result Client::Delete(const char *path, const Headers &headers, const std::string &body, const char *content_type) { return cli_->Delete(path, headers, body, content_type); } inline Result Client::Options(const char *path) { return cli_->Options(path); } inline Result Client::Options(const char *path, const Headers &headers) { return cli_->Options(path, headers); } inline bool Client::send(Request &req, Response &res, Error &error) { return cli_->send(req, res, error); } inline Result Client::send(const Request &req) { return cli_->send(req); } inline size_t Client::is_socket_open() const { return cli_->is_socket_open(); } inline void Client::stop() { cli_->stop(); } inline void Client::set_hostname_addr_map( const std::map addr_map) { cli_->set_hostname_addr_map(std::move(addr_map)); } inline void Client::set_default_headers(Headers headers) { cli_->set_default_headers(std::move(headers)); } inline void Client::set_address_family(int family) { cli_->set_address_family(family); } inline void Client::set_tcp_nodelay(bool on) { cli_->set_tcp_nodelay(on); } inline void Client::set_socket_options(SocketOptions socket_options) { cli_->set_socket_options(std::move(socket_options)); } inline void Client::set_connection_timeout(time_t sec, time_t usec) { cli_->set_connection_timeout(sec, usec); } inline void Client::set_read_timeout(time_t sec, time_t usec) { cli_->set_read_timeout(sec, usec); } inline void Client::set_write_timeout(time_t sec, time_t usec) { cli_->set_write_timeout(sec, usec); } inline void Client::set_basic_auth(const char *username, const char *password) { cli_->set_basic_auth(username, password); } inline void Client::set_bearer_token_auth(const char *token) { cli_->set_bearer_token_auth(token); } #ifdef CPPHTTPLIB_OPENSSL_SUPPORT inline void Client::set_digest_auth(const char *username, const char *password) { cli_->set_digest_auth(username, password); } #endif inline void Client::set_keep_alive(bool on) { cli_->set_keep_alive(on); } inline void Client::set_follow_location(bool on) { cli_->set_follow_location(on); } inline void Client::set_url_encode(bool on) { cli_->set_url_encode(on); } inline void Client::set_compress(bool on) { cli_->set_compress(on); } inline void Client::set_decompress(bool on) { cli_->set_decompress(on); } inline void Client::set_interface(const char *intf) { cli_->set_interface(intf); } inline void Client::set_proxy(const char *host, int port) { cli_->set_proxy(host, port); } inline void Client::set_proxy_basic_auth(const char *username, const char *password) { cli_->set_proxy_basic_auth(username, password); } inline void Client::set_proxy_bearer_token_auth(const char *token) { cli_->set_proxy_bearer_token_auth(token); } #ifdef CPPHTTPLIB_OPENSSL_SUPPORT inline void Client::set_proxy_digest_auth(const char *username, const char *password) { cli_->set_proxy_digest_auth(username, password); } #endif #ifdef CPPHTTPLIB_OPENSSL_SUPPORT inline void Client::enable_server_certificate_verification(bool enabled) { cli_->enable_server_certificate_verification(enabled); } #endif inline void Client::set_logger(Logger logger) { cli_->set_logger(logger); } #ifdef CPPHTTPLIB_OPENSSL_SUPPORT inline void Client::set_ca_cert_path(const char *ca_cert_file_path, const char *ca_cert_dir_path) { cli_->set_ca_cert_path(ca_cert_file_path, ca_cert_dir_path); } inline void Client::set_ca_cert_store(X509_STORE *ca_cert_store) { if (is_ssl_) { static_cast(*cli_).set_ca_cert_store(ca_cert_store); } else { cli_->set_ca_cert_store(ca_cert_store); } } inline long Client::get_openssl_verify_result() const { if (is_ssl_) { return static_cast(*cli_).get_openssl_verify_result(); } return -1; // NOTE: -1 doesn't match any of X509_V_ERR_??? } inline SSL_CTX *Client::ssl_context() const { if (is_ssl_) { return static_cast(*cli_).ssl_context(); } return nullptr; } #endif // ---------------------------------------------------------------------------- } // namespace CPPHTTPLIB_NAMESPACE #endif // CPPHTTPLIB_HTTPLIB_H