diff --git a/Makefile b/Makefile index c95e2cda..04d98829 100644 --- a/Makefile +++ b/Makefile @@ -48,15 +48,15 @@ rm-net: run-demo: @if [ ! -d "data" ]; then mkdir data; fi; @if [ ! -d "logs" ]; then mkdir logs; fi; - docker run --name kvserver-node1 --network mytestnetwork --ip 172.18.0.10 --privileged=true -d --rm -v $(realpath .):/eraft eraft/eraftkv:$(IMAGE_VERSION) /eraft/build/example/eraftkv -svr_id 0 -kv_db_path /eraft/data/kv_db0 -log_db_path /eraft/data/log_db0 -snap_db_path /eraft/data/snap_db0 -peer_addrs 172.18.0.10:8088,172.18.0.11:8089,172.18.0.12:8090 -log_file_path /eraft/logs/eraftkv-1.log -monitor_addrs 0.0.0.0:12306 + docker run --name kvserver-node1 --network mytestnetwork -p 18080:18080 --ip 172.18.0.10 --privileged=true -d --rm -v $(realpath .):/eraft eraft/eraftkv:$(IMAGE_VERSION) /eraft/build/example/eraftkv -svr_id 0 -kv_db_path /eraft/data/kv_db0 -log_db_path /eraft/data/log_db0 -snap_db_path /eraft/data/snap_db0 -peer_addrs 172.18.0.10:8088,172.18.0.11:8089,172.18.0.12:8090 -log_file_path /eraft/logs/eraftkv-1.log -monitor_port 18080 sleep 2 - docker run --name kvserver-node2 --network mytestnetwork --ip 172.18.0.11 --privileged=true -d --rm -v $(realpath .):/eraft eraft/eraftkv:$(IMAGE_VERSION) /eraft/build/example/eraftkv -svr_id 1 -kv_db_path /eraft/data/kv_db1 -log_db_path /eraft/data/log_db1 -snap_db_path /eraft/data/snap_db1 -peer_addrs 172.18.0.10:8088,172.18.0.11:8089,172.18.0.12:8090 -log_file_path /eraft/logs/eraftkv-2.log -monitor_addrs 0.0.0.0:12306 - docker run --name kvserver-node3 --network mytestnetwork --ip 172.18.0.12 --privileged=true -d --rm -v $(realpath .):/eraft eraft/eraftkv:$(IMAGE_VERSION) /eraft/build/example/eraftkv -svr_id 2 -kv_db_path /eraft/data/kv_db2 -log_db_path /eraft/data/log_db2 -snap_db_path /eraft/data/snap_db2 -peer_addrs 172.18.0.10:8088,172.18.0.11:8089,172.18.0.12:8090 -log_file_path /eraft/logs/eraftkv-3.log -monitor_addrs 0.0.0.0:12306 + docker run --name kvserver-node2 --network mytestnetwork -p 18081:18081 --ip 172.18.0.11 --privileged=true -d --rm -v $(realpath .):/eraft eraft/eraftkv:$(IMAGE_VERSION) /eraft/build/example/eraftkv -svr_id 1 -kv_db_path /eraft/data/kv_db1 -log_db_path /eraft/data/log_db1 -snap_db_path /eraft/data/snap_db1 -peer_addrs 172.18.0.10:8088,172.18.0.11:8089,172.18.0.12:8090 -log_file_path /eraft/logs/eraftkv-2.log -monitor_port 18081 + docker run --name kvserver-node3 --network mytestnetwork -p 18082:18082 --ip 172.18.0.12 --privileged=true -d --rm -v $(realpath .):/eraft eraft/eraftkv:$(IMAGE_VERSION) /eraft/build/example/eraftkv -svr_id 2 -kv_db_path /eraft/data/kv_db2 -log_db_path /eraft/data/log_db2 -snap_db_path /eraft/data/snap_db2 -peer_addrs 172.18.0.10:8088,172.18.0.11:8089,172.18.0.12:8090 -log_file_path /eraft/logs/eraftkv-3.log -monitor_port 18082 sleep 1 - docker run --name metaserver-node1 --network mytestnetwork --ip 172.18.0.2 -d --rm -v $(realpath .):/eraft eraft/eraftkv:$(IMAGE_VERSION) /eraft/build/example/eraftmeta -svr_id 0 -kv_db_path /eraft/data/meta_db0 -log_db_path /eraft/data/meta_log_db0 -peer_addrs 172.18.0.2:8088,172.18.0.3:8089,172.18.0.4:8090 -monitor_addrs 0.0.0.0:12306 + docker run --name metaserver-node1 --network mytestnetwork -p 19080:19080 --ip 172.18.0.2 -d --rm -v $(realpath .):/eraft eraft/eraftkv:$(IMAGE_VERSION) /eraft/build/example/eraftmeta -svr_id 0 -kv_db_path /eraft/data/meta_db0 -log_db_path /eraft/data/meta_log_db0 -peer_addrs 172.18.0.2:8088,172.18.0.3:8089,172.18.0.4:8090 -monitor_port 19080 sleep 3 - docker run --name metaserver-node2 --network mytestnetwork --ip 172.18.0.3 -d --rm -v $(realpath .):/eraft eraft/eraftkv:$(IMAGE_VERSION) /eraft/build/example/eraftmeta -svr_id 1 -kv_db_path /eraft/data/meta_db1 -log_db_path /eraft/data/meta_log_db1 -peer_addrs 172.18.0.2:8088,172.18.0.3:8089,172.18.0.4:8090 -monitor_addrs 0.0.0.0:12306 - docker run --name metaserver-node3 --network mytestnetwork --ip 172.18.0.4 -d --rm -v $(realpath .):/eraft eraft/eraftkv:$(IMAGE_VERSION) /eraft/build/example/eraftmeta -svr_id 2 -kv_db_path /eraft/data/meta_db2 -log_db_path /eraft/data/meta_log_db2 -peer_addrs 172.18.0.2:8088,172.18.0.3:8089,172.18.0.4:8090 -monitor_addrs 0.0.0.0:12306 + docker run --name metaserver-node2 --network mytestnetwork -p 19081:19081 --ip 172.18.0.3 -d --rm -v $(realpath .):/eraft eraft/eraftkv:$(IMAGE_VERSION) /eraft/build/example/eraftmeta -svr_id 1 -kv_db_path /eraft/data/meta_db1 -log_db_path /eraft/data/meta_log_db1 -peer_addrs 172.18.0.2:8088,172.18.0.3:8089,172.18.0.4:8090 -monitor_port 19081 + docker run --name metaserver-node3 --network mytestnetwork -p 19082:19082 --ip 172.18.0.4 -d --rm -v $(realpath .):/eraft eraft/eraftkv:$(IMAGE_VERSION) /eraft/build/example/eraftmeta -svr_id 2 -kv_db_path /eraft/data/meta_db2 -log_db_path /eraft/data/meta_log_db2 -peer_addrs 172.18.0.2:8088,172.18.0.3:8089,172.18.0.4:8090 -monitor_port 19082 stop-demo: docker stop kvserver-node1 kvserver-node2 kvserver-node3 metaserver-node1 metaserver-node2 metaserver-node3 diff --git a/example/CMakeLists.txt b/example/CMakeLists.txt index 971365c6..e08b1e20 100644 --- a/example/CMakeLists.txt +++ b/example/CMakeLists.txt @@ -9,6 +9,7 @@ list(APPEND eraftkv_sources src/sequential_file_reader.cc) list(APPEND eraftkv_sources src/sequential_file_writer.cc) list(APPEND eraftkv_sources src/log_entry_cache.cc) list(APPEND eraftkv_sources src/grpc_network_impl.cc) +list(APPEND eraftkv_sources src/client.cc) list(APPEND eraftkv_sources src/eraftkv.cc) add_executable(eraftkv ${eraftkv_sources}) @@ -32,6 +33,7 @@ list(APPEND eraftmeta_sources src/sequential_file_reader.cc) list(APPEND eraftmeta_sources src/sequential_file_writer.cc) list(APPEND eraftmeta_sources src/log_entry_cache.cc) list(APPEND eraftmeta_sources src/grpc_network_impl.cc) +list(APPEND eraftmeta_sources src/client.cc) list(APPEND eraftmeta_sources src/eraftmeta.cc) add_executable(eraftmeta ${eraftmeta_sources}) diff --git a/example/include/client.h b/example/include/client.h index 1dd636ba..69fa571b 100644 --- a/example/include/client.h +++ b/example/include/client.h @@ -45,6 +45,8 @@ #define DEFAULT_METASERVER_ADDRS \ "172.18.0.2:8088,172.18.0.3:8089,172.18.0.4:8090" +#define DEFAULT_SHARD_MONITOR_ADDRS \ + "http://172.18.0.10:18088,http://172.18.0.11:18081,http://172.18.0.12:18082" using eraftkv::ERaftKv; using grpc::Channel; @@ -63,6 +65,7 @@ class Client { void UpdateKvServerLeaderStubByPartitionKey(std::string partition_key); bool AddServerGroupToMeta(int64_t group_shard_id, + int64_t leader_id, std::string group_server_addrs); std::map GetServerGroupsFromMeta(); diff --git a/example/include/eraftkv_server.h b/example/include/eraftkv_server.h index de7b3fad..e2bac6c6 100644 --- a/example/include/eraftkv_server.h +++ b/example/include/eraftkv_server.h @@ -96,19 +96,23 @@ class ERaftKvServer : public eraftkv::ERaftKv::Service { * * @param config */ - ERaftKvServer(ERaftKvServerOptions option) : options_(option), op_sign(1) { + ERaftKvServer(ERaftKvServerOptions option, int server_role) + : options_(option), op_sign(1) { // init raft lib RaftConfig raft_config; raft_config.id = options_.svr_id; + svr_role_ = server_role; auto peers = StringUtil::Split(options_.peer_addrs, ','); int64_t count = 0; for (auto peer : peers) { raft_config.peer_address_map[count] = peer; count++; } - if (options_.svr_role == ServerRoleEnum::DataServer) { + if (server_role == 0) { DirectoryTool::MkDir(options_.snap_db_path); } + stat_json_str_ = new std::string(""); + cluster_stats_json_str_ = new std::string(""); raft_config.snap_path = options_.snap_db_path; options_.svr_addr = raft_config.peer_address_map[options_.svr_id]; GRpcNetworkImpl* net_rpc = new GRpcNetworkImpl(); @@ -194,6 +198,10 @@ class ERaftKvServer : public eraftkv::ERaftKv::Service { */ EStatus BuildAndRunRpcServer(); + static void ReportStats(); + + static void UpdateMetaStats(); + /** * @brief * @@ -206,6 +214,12 @@ class ERaftKvServer : public eraftkv::ERaftKv::Service { static bool* is_ok_to_response_; + static std::atomic stat_json_str_; + + static std::atomic cluster_stats_json_str_; + + static int svr_role_; + private: /** * @brief diff --git a/example/include/httplib.h b/example/include/httplib.h new file mode 100644 index 00000000..36805dab --- /dev/null +++ b/example/include/httplib.h @@ -0,0 +1,11611 @@ +// +// httplib.h +// +// Copyright (c) 2024 Yuji Hirose. All rights reserved. +// MIT License +// + +#ifndef CPPHTTPLIB_HTTPLIB_H +#define CPPHTTPLIB_HTTPLIB_H + +#define CPPHTTPLIB_VERSION "0.16.3" + +/* + * Configuration + */ + +#ifndef CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND +#define CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND 5 +#endif + +#ifndef CPPHTTPLIB_KEEPALIVE_MAX_COUNT +#define CPPHTTPLIB_KEEPALIVE_MAX_COUNT 5 +#endif + +#ifndef CPPHTTPLIB_CONNECTION_TIMEOUT_SECOND +#define CPPHTTPLIB_CONNECTION_TIMEOUT_SECOND 300 +#endif + +#ifndef CPPHTTPLIB_CONNECTION_TIMEOUT_USECOND +#define CPPHTTPLIB_CONNECTION_TIMEOUT_USECOND 0 +#endif + +#ifndef CPPHTTPLIB_READ_TIMEOUT_SECOND +#define CPPHTTPLIB_READ_TIMEOUT_SECOND 5 +#endif + +#ifndef CPPHTTPLIB_READ_TIMEOUT_USECOND +#define CPPHTTPLIB_READ_TIMEOUT_USECOND 0 +#endif + +#ifndef CPPHTTPLIB_WRITE_TIMEOUT_SECOND +#define CPPHTTPLIB_WRITE_TIMEOUT_SECOND 5 +#endif + +#ifndef CPPHTTPLIB_WRITE_TIMEOUT_USECOND +#define CPPHTTPLIB_WRITE_TIMEOUT_USECOND 0 +#endif + +#ifndef CPPHTTPLIB_IDLE_INTERVAL_SECOND +#define CPPHTTPLIB_IDLE_INTERVAL_SECOND 0 +#endif + +#ifndef CPPHTTPLIB_IDLE_INTERVAL_USECOND +#ifdef _WIN32 +#define CPPHTTPLIB_IDLE_INTERVAL_USECOND 10000 +#else +#define CPPHTTPLIB_IDLE_INTERVAL_USECOND 0 +#endif +#endif + +#ifndef CPPHTTPLIB_REQUEST_URI_MAX_LENGTH +#define CPPHTTPLIB_REQUEST_URI_MAX_LENGTH 8192 +#endif + +#ifndef CPPHTTPLIB_HEADER_MAX_LENGTH +#define CPPHTTPLIB_HEADER_MAX_LENGTH 8192 +#endif + +#ifndef CPPHTTPLIB_REDIRECT_MAX_COUNT +#define CPPHTTPLIB_REDIRECT_MAX_COUNT 20 +#endif + +#ifndef CPPHTTPLIB_MULTIPART_FORM_DATA_FILE_MAX_COUNT +#define CPPHTTPLIB_MULTIPART_FORM_DATA_FILE_MAX_COUNT 1024 +#endif + +#ifndef CPPHTTPLIB_PAYLOAD_MAX_LENGTH +#define CPPHTTPLIB_PAYLOAD_MAX_LENGTH ((std::numeric_limits::max)()) +#endif + +#ifndef CPPHTTPLIB_FORM_URL_ENCODED_PAYLOAD_MAX_LENGTH +#define CPPHTTPLIB_FORM_URL_ENCODED_PAYLOAD_MAX_LENGTH 8192 +#endif + +#ifndef CPPHTTPLIB_RANGE_MAX_COUNT +#define CPPHTTPLIB_RANGE_MAX_COUNT 1024 +#endif + +#ifndef CPPHTTPLIB_TCP_NODELAY +#define CPPHTTPLIB_TCP_NODELAY false +#endif + +#ifndef CPPHTTPLIB_RECV_BUFSIZ +#define CPPHTTPLIB_RECV_BUFSIZ size_t(16384u) +#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 CPPHTTPLIB_SEND_FLAGS +#define CPPHTTPLIB_SEND_FLAGS 0 +#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) +#if _MSC_VER < 1900 +#error Sorry, Visual Studio versions prior to 2015 are not supported +#endif + +#pragma comment(lib, "ws2_32.lib") + +#ifdef _WIN64 +using ssize_t = __int64; +#else +using ssize_t = long; +#endif +#endif // _MSC_VER + +#ifndef S_ISREG +#define S_ISREG(m) (((m) & S_IFREG) == S_IFREG) +#endif // S_ISREG + +#ifndef S_ISDIR +#define S_ISDIR(m) (((m) & S_IFDIR) == S_IFDIR) +#endif // S_ISDIR + +#ifndef NOMINMAX +#define NOMINMAX +#endif // NOMINMAX + +#include +#include +#include + +#ifndef WSA_FLAG_NO_HANDLE_INHERIT +#define WSA_FLAG_NO_HANDLE_INHERIT 0x80 +#endif + +using socket_t = SOCKET; +#ifdef CPPHTTPLIB_USE_POLL +#define poll(fds, nfds, timeout) WSAPoll(fds, nfds, timeout) +#endif + +#else // not _WIN32 + +#include +#if !defined(_AIX) && !defined(__MVS__) +#include +#endif +#ifdef __MVS__ +#include +#ifndef NI_MAXHOST +#define NI_MAXHOST 1025 +#endif +#endif +#include +#include +#include +#ifdef __linux__ +#include +#endif +#include +#ifdef CPPHTTPLIB_USE_POLL +#include +#endif +#include +#include +#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 +#include +#include +#include +#include +#include + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT +#ifdef _WIN32 +#include + +// these are defined in wincrypt.h and it breaks compilation if BoringSSL is +// used +#undef X509_NAME +#undef X509_CERT_PAIR +#undef X509_EXTENSIONS +#undef PKCS7_SIGNER_INFO + +#ifdef _MSC_VER +#pragma comment(lib, "crypt32.lib") +#endif +#elif defined(CPPHTTPLIB_USE_CERTS_FROM_MACOSX_KEYCHAIN) && defined(__APPLE__) +#include +#if TARGET_OS_OSX +#include +#include +#endif // TARGET_OS_OSX +#endif // _WIN32 + +#include +#include +#include +#include + +#if defined(_WIN32) && defined(OPENSSL_USE_APPLINK) +#include +#endif + +#include +#include + +#if defined(OPENSSL_IS_BORINGSSL) +#if OPENSSL_VERSION_NUMBER < 0x1010107f +#error Please use OpenSSL or a current version of BoringSSL +#endif +#define SSL_get1_peer_certificate SSL_get_peer_certificate +#elif OPENSSL_VERSION_NUMBER < 0x30000000L +#error Sorry, OpenSSL versions prior to 3.0.0 are not supported +#endif + +#endif + +#ifdef CPPHTTPLIB_ZLIB_SUPPORT +#include +#endif + +#ifdef CPPHTTPLIB_BROTLI_SUPPORT +#include +#include +#endif + +/* + * Declaration + */ +namespace httplib { + +namespace detail { + +/* + * Backport std::make_unique from C++14. + * + * NOTE: This code came up with the following stackoverflow post: + * https://stackoverflow.com/questions/10149840/c-arrays-and-make-unique + * + */ + +template +typename std::enable_if::value, std::unique_ptr>::type + make_unique(Args &&...args) { + return std::unique_ptr(new T(std::forward(args)...)); +} + +template +typename std::enable_if::value, std::unique_ptr>::type + make_unique(std::size_t n) { + typedef typename std::remove_extent::type RT; + return std::unique_ptr(new RT[n]); +} + +struct ci { + bool operator()(const std::string &s1, const std::string &s2) const { + return std::lexicographical_compare(s1.begin(), + s1.end(), + s2.begin(), + s2.end(), + [](unsigned char c1, unsigned char c2) { + return ::tolower(c1) < ::tolower(c2); + }); + } +}; + +// This is based on +// "http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4189". + +struct scope_exit { + explicit scope_exit(std::function &&f) + : exit_function(std::move(f)), execute_on_destruction{true} {} + + scope_exit(scope_exit &&rhs) noexcept + : exit_function(std::move(rhs.exit_function)) + , execute_on_destruction{rhs.execute_on_destruction} { + rhs.release(); + } + + ~scope_exit() { + if (execute_on_destruction) { + this->exit_function(); + } + } + + void release() { + this->execute_on_destruction = false; + } + + private: + scope_exit(const scope_exit &) = delete; + void operator=(const scope_exit &) = delete; + scope_exit &operator=(scope_exit &&) = delete; + + std::function exit_function; + bool execute_on_destruction; +}; + +} // namespace detail + +enum StatusCode { + // Information responses + Continue_100 = 100, + SwitchingProtocol_101 = 101, + Processing_102 = 102, + EarlyHints_103 = 103, + + // Successful responses + OK_200 = 200, + Created_201 = 201, + Accepted_202 = 202, + NonAuthoritativeInformation_203 = 203, + NoContent_204 = 204, + ResetContent_205 = 205, + PartialContent_206 = 206, + MultiStatus_207 = 207, + AlreadyReported_208 = 208, + IMUsed_226 = 226, + + // Redirection messages + MultipleChoices_300 = 300, + MovedPermanently_301 = 301, + Found_302 = 302, + SeeOther_303 = 303, + NotModified_304 = 304, + UseProxy_305 = 305, + unused_306 = 306, + TemporaryRedirect_307 = 307, + PermanentRedirect_308 = 308, + + // Client error responses + BadRequest_400 = 400, + Unauthorized_401 = 401, + PaymentRequired_402 = 402, + Forbidden_403 = 403, + NotFound_404 = 404, + MethodNotAllowed_405 = 405, + NotAcceptable_406 = 406, + ProxyAuthenticationRequired_407 = 407, + RequestTimeout_408 = 408, + Conflict_409 = 409, + Gone_410 = 410, + LengthRequired_411 = 411, + PreconditionFailed_412 = 412, + PayloadTooLarge_413 = 413, + UriTooLong_414 = 414, + UnsupportedMediaType_415 = 415, + RangeNotSatisfiable_416 = 416, + ExpectationFailed_417 = 417, + ImATeapot_418 = 418, + MisdirectedRequest_421 = 421, + UnprocessableContent_422 = 422, + Locked_423 = 423, + FailedDependency_424 = 424, + TooEarly_425 = 425, + UpgradeRequired_426 = 426, + PreconditionRequired_428 = 428, + TooManyRequests_429 = 429, + RequestHeaderFieldsTooLarge_431 = 431, + UnavailableForLegalReasons_451 = 451, + + // Server error responses + InternalServerError_500 = 500, + NotImplemented_501 = 501, + BadGateway_502 = 502, + ServiceUnavailable_503 = 503, + GatewayTimeout_504 = 504, + HttpVersionNotSupported_505 = 505, + VariantAlsoNegotiates_506 = 506, + InsufficientStorage_507 = 507, + LoopDetected_508 = 508, + NotExtended_510 = 510, + NetworkAuthenticationRequired_511 = 511, +}; + +using Headers = std::multimap; + +using Params = std::multimap; +using Match = std::smatch; + +using Progress = std::function; + +struct Response; +using ResponseHandler = std::function; + +struct MultipartFormData { + std::string name; + std::string content; + std::string filename; + std::string content_type; +}; +using MultipartFormDataItems = std::vector; +using MultipartFormDataMap = std::multimap; + +class DataSink { + public: + DataSink() : os(&sb_), sb_(*this) {} + + DataSink(const DataSink &) = delete; + DataSink &operator=(const DataSink &) = delete; + DataSink(DataSink &&) = delete; + DataSink &operator=(DataSink &&) = delete; + + std::function write; + std::function is_writable; + std::function done; + std::function done_with_trailer; + std::ostream os; + + private: + class data_sink_streambuf final : public std::streambuf { + public: + explicit data_sink_streambuf(DataSink &sink) : sink_(sink) {} + + protected: + std::streamsize xsputn(const char *s, std::streamsize n) override { + 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; + +struct MultipartFormDataProvider { + std::string name; + ContentProviderWithoutLength provider; + std::string filename; + std::string content_type; +}; +using MultipartFormDataProviderItems = std::vector; + +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; + std::string local_addr; + int local_port = -1; + + // for server + std::string version; + std::string target; + Params params; + MultipartFormDataMap files; + Ranges ranges; + Match matches; + std::unordered_map path_params; + + // for client + ResponseHandler response_handler; + ContentReceiverWithProgress content_receiver; + Progress progress; +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + const SSL *ssl = nullptr; +#endif + + bool has_header(const std::string &key) const; + std::string get_header_value(const std::string &key, size_t id = 0) const; + uint64_t get_header_value_u64(const std::string &key, size_t id = 0) const; + size_t get_header_value_count(const std::string &key) const; + void set_header(const std::string &key, const std::string &val); + + bool has_param(const std::string &key) const; + std::string get_param_value(const std::string &key, size_t id = 0) const; + size_t get_param_value_count(const std::string &key) const; + + bool is_multipart_form_data() const; + + bool has_file(const std::string &key) const; + MultipartFormData get_file_value(const std::string &key) const; + std::vector get_file_values(const std::string &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 std::string &key) const; + std::string get_header_value(const std::string &key, size_t id = 0) const; + uint64_t get_header_value_u64(const std::string &key, size_t id = 0) const; + size_t get_header_value_count(const std::string &key) const; + void set_header(const std::string &key, const std::string &val); + + void set_redirect(const std::string &url, int status = StatusCode::Found_302); + void set_content(const char *s, size_t n, const std::string &content_type); + void set_content(const std::string &s, const std::string &content_type); + void set_content(std::string &&s, const std::string &content_type); + + void set_content_provider( + size_t length, + const std::string &content_type, + ContentProvider provider, + ContentProviderResourceReleaser resource_releaser = nullptr); + + void set_content_provider( + const std::string &content_type, + ContentProviderWithoutLength provider, + ContentProviderResourceReleaser resource_releaser = nullptr); + + void set_chunked_content_provider( + const std::string &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 void get_local_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 bool enqueue(std::function fn) = 0; + virtual void shutdown() = 0; + + virtual void on_idle() {} +}; + +class ThreadPool final : public TaskQueue { + public: + explicit ThreadPool(size_t n, size_t mqr = 0) + : shutdown_(false), max_queued_requests_(mqr) { + while (n) { + threads_.emplace_back(worker(*this)); + n--; + } + } + + ThreadPool(const ThreadPool &) = delete; + ~ThreadPool() override = default; + + bool enqueue(std::function fn) override { + { + std::unique_lock lock(mutex_); + if (max_queued_requests_ > 0 && jobs_.size() >= max_queued_requests_) { + return false; + } + jobs_.push_back(std::move(fn)); + } + + cond_.notify_one(); + return true; + } + + 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(); + } + +#if defined(CPPHTTPLIB_OPENSSL_SUPPORT) && !defined(OPENSSL_IS_BORINGSSL) + OPENSSL_thread_stop(); +#endif + } + + ThreadPool &pool_; + }; + friend struct worker; + + std::vector threads_; + std::list> jobs_; + + bool shutdown_; + size_t max_queued_requests_ = 0; + + std::condition_variable cond_; + std::mutex mutex_; +}; + +using Logger = std::function; + +using SocketOptions = std::function; + +void default_socket_options(socket_t sock); + +const char *status_message(int status); + +std::string get_bearer_token_auth(const Request &req); + +namespace detail { + +class MatcherBase { + public: + virtual ~MatcherBase() = default; + + // Match request path and populate its matches and + virtual bool match(Request &request) const = 0; +}; + +/** + * Captures parameters in request path and stores them in Request::path_params + * + * Capture name is a substring of a pattern from : to /. + * The rest of the pattern is matched agains the request path directly + * Parameters are captured starting from the next character after + * the end of the last matched static pattern fragment until the next /. + * + * Example pattern: + * "/path/fragments/:capture/more/fragments/:second_capture" + * Static fragments: + * "/path/fragments/", "more/fragments/" + * + * Given the following request path: + * "/path/fragments/:1/more/fragments/:2" + * the resulting capture will be + * {{"capture", "1"}, {"second_capture", "2"}} + */ +class PathParamsMatcher final : public MatcherBase { + public: + PathParamsMatcher(const std::string &pattern); + + bool match(Request &request) const override; + + private: + static constexpr char marker = ':'; + // Treat segment separators as the end of path parameter capture + // Does not need to handle query parameters as they are parsed before path + // matching + static constexpr char separator = '/'; + + // Contains static path fragments to match against, excluding the '/' after + // path params + // Fragments are separated by path params + std::vector static_fragments_; + // Stores the names of the path parameters to be used as keys in the + // Request::path_params map + std::vector param_names_; +}; + +/** + * Performs std::regex_match on request path + * and stores the result in Request::matches + * + * Note that regex match is performed directly on the whole request. + * This means that wildcard patterns may match multiple path segments with /: + * "/begin/(.*)/end" will match both "/begin/middle/end" and "/begin/1/2/end". + */ +class RegexMatcher final : public MatcherBase { + public: + RegexMatcher(const std::string &pattern) : regex_(pattern) {} + + bool match(Request &request) const override; + + private: + std::regex regex_; +}; + +ssize_t write_headers(Stream &strm, const Headers &headers); + +} // namespace detail + +class Server { + public: + using Handler = std::function; + + using ExceptionHandler = + std::function; + + enum class HandlerResponse { + Handled, + Unhandled, + }; + using HandlerWithResponse = + std::function; + + using HandlerWithContentReader = std::function< + void(const Request &, Response &, const ContentReader &content_reader)>; + + 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 std::string &ext, + const std::string &mime); + Server &set_default_file_mimetype(const std::string &mime); + Server &set_file_request_handler(Handler handler); + + template + Server &set_error_handler(ErrorHandlerFunc &&handler) { + return set_error_handler_core( + std::forward(handler), + std::is_convertible{}); + } + + 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_header_writer( + std::function const &writer); + + 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 std::string &host, int port, int socket_flags = 0); + int bind_to_any_port(const std::string &host, int socket_flags = 0); + bool listen_after_bind(); + + bool listen(const std::string &host, int port, int socket_flags = 0); + + bool is_running() const; + void wait_until_ready() 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_{INVALID_SOCKET}; + 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, Handler>>; + using HandlersForContentReader = + std::vector, + HandlerWithContentReader>>; + + static std::unique_ptr make_matcher( + const std::string &pattern); + + Server &set_error_handler_core(HandlerWithResponse handler, std::true_type); + Server &set_error_handler_core(Handler handler, std::false_type); + + socket_t create_server_socket(const std::string &host, + int port, + int socket_flags, + SocketOptions socket_options) const; + int bind_internal(const std::string &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) const; + bool dispatch_request_for_content_reader( + Request &req, + Response &res, + ContentReader content_reader, + const HandlersForContentReader &handlers) const; + + bool parse_request_line(const char *s, Request &req) const; + void apply_ranges(const Request &req, + Response &res, + std::string &content_type, + std::string &boundary) const; + bool write_response(Stream &strm, + bool close_connection, + 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 multipart_header, + ContentReceiver multipart_receiver) const; + + virtual bool process_and_close_socket(socket_t sock); + + std::atomic is_running_{false}; + std::atomic done_{false}; + + struct MountPointEntry { + std::string mount_point; + std::string base_dir; + Headers headers; + }; + std::vector base_dirs_; + std::map file_extension_and_mimetype_map_; + std::string default_file_mimetype_ = "application/octet-stream"; + 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_; + Expect100ContinueHandler expect_100_continue_handler_; + + Logger logger_; + + int address_family_ = AF_UNSPEC; + bool tcp_nodelay_ = CPPHTTPLIB_TCP_NODELAY; + SocketOptions socket_options_ = default_socket_options; + + Headers default_headers_; + std::function header_writer_ = + detail::write_headers; +}; + +enum class Error { + Success = 0, + Unknown, + Connection, + BindIPAddress, + Read, + Write, + ExceedRedirectCount, + Canceled, + SSLConnection, + SSLLoadingCerts, + SSLServerVerification, + UnsupportedMultipartBoundaryChars, + Compression, + ConnectionTimeout, + ProxyConnection, + + // For internal use only + SSLPeerCouldBeClosed_, +}; + +std::string to_string(Error error); + +std::ostream &operator<<(std::ostream &os, const Error &obj); + +class Result { + public: + Result() = default; + 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 std::string &key) const; + std::string get_request_header_value(const std::string &key, + size_t id = 0) const; + uint64_t get_request_header_value_u64(const std::string &key, + size_t id = 0) const; + size_t get_request_header_value_count(const std::string &key) const; + + private: + std::unique_ptr res_; + Error err_ = Error::Unknown; + 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 std::string &path); + Result Get(const std::string &path, const Headers &headers); + Result Get(const std::string &path, Progress progress); + Result Get(const std::string &path, + const Headers &headers, + Progress progress); + Result Get(const std::string &path, ContentReceiver content_receiver); + Result Get(const std::string &path, + const Headers &headers, + ContentReceiver content_receiver); + Result Get(const std::string &path, + ContentReceiver content_receiver, + Progress progress); + Result Get(const std::string &path, + const Headers &headers, + ContentReceiver content_receiver, + Progress progress); + Result Get(const std::string &path, + ResponseHandler response_handler, + ContentReceiver content_receiver); + Result Get(const std::string &path, + const Headers &headers, + ResponseHandler response_handler, + ContentReceiver content_receiver); + Result Get(const std::string &path, + ResponseHandler response_handler, + ContentReceiver content_receiver, + Progress progress); + Result Get(const std::string &path, + const Headers &headers, + ResponseHandler response_handler, + ContentReceiver content_receiver, + Progress progress); + + Result Get(const std::string &path, + const Params ¶ms, + const Headers &headers, + Progress progress = nullptr); + Result Get(const std::string &path, + const Params ¶ms, + const Headers &headers, + ContentReceiver content_receiver, + Progress progress = nullptr); + Result Get(const std::string &path, + const Params ¶ms, + const Headers &headers, + ResponseHandler response_handler, + ContentReceiver content_receiver, + Progress progress = nullptr); + + Result Head(const std::string &path); + Result Head(const std::string &path, const Headers &headers); + + Result Post(const std::string &path); + Result Post(const std::string &path, const Headers &headers); + Result Post(const std::string &path, + const char *body, + size_t content_length, + const std::string &content_type); + Result Post(const std::string &path, + const Headers &headers, + const char *body, + size_t content_length, + const std::string &content_type); + Result Post(const std::string &path, + const Headers &headers, + const char *body, + size_t content_length, + const std::string &content_type, + Progress progress); + Result Post(const std::string &path, + const std::string &body, + const std::string &content_type); + Result Post(const std::string &path, + const std::string &body, + const std::string &content_type, + Progress progress); + Result Post(const std::string &path, + const Headers &headers, + const std::string &body, + const std::string &content_type); + Result Post(const std::string &path, + const Headers &headers, + const std::string &body, + const std::string &content_type, + Progress progress); + Result Post(const std::string &path, + size_t content_length, + ContentProvider content_provider, + const std::string &content_type); + Result Post(const std::string &path, + ContentProviderWithoutLength content_provider, + const std::string &content_type); + Result Post(const std::string &path, + const Headers &headers, + size_t content_length, + ContentProvider content_provider, + const std::string &content_type); + Result Post(const std::string &path, + const Headers &headers, + ContentProviderWithoutLength content_provider, + const std::string &content_type); + Result Post(const std::string &path, const Params ¶ms); + Result Post(const std::string &path, + const Headers &headers, + const Params ¶ms); + Result Post(const std::string &path, + const Headers &headers, + const Params ¶ms, + Progress progress); + Result Post(const std::string &path, const MultipartFormDataItems &items); + Result Post(const std::string &path, + const Headers &headers, + const MultipartFormDataItems &items); + Result Post(const std::string &path, + const Headers &headers, + const MultipartFormDataItems &items, + const std::string &boundary); + Result Post(const std::string &path, + const Headers &headers, + const MultipartFormDataItems &items, + const MultipartFormDataProviderItems &provider_items); + + Result Put(const std::string &path); + Result Put(const std::string &path, + const char *body, + size_t content_length, + const std::string &content_type); + Result Put(const std::string &path, + const Headers &headers, + const char *body, + size_t content_length, + const std::string &content_type); + Result Put(const std::string &path, + const Headers &headers, + const char *body, + size_t content_length, + const std::string &content_type, + Progress progress); + Result Put(const std::string &path, + const std::string &body, + const std::string &content_type); + Result Put(const std::string &path, + const std::string &body, + const std::string &content_type, + Progress progress); + Result Put(const std::string &path, + const Headers &headers, + const std::string &body, + const std::string &content_type); + Result Put(const std::string &path, + const Headers &headers, + const std::string &body, + const std::string &content_type, + Progress progress); + Result Put(const std::string &path, + size_t content_length, + ContentProvider content_provider, + const std::string &content_type); + Result Put(const std::string &path, + ContentProviderWithoutLength content_provider, + const std::string &content_type); + Result Put(const std::string &path, + const Headers &headers, + size_t content_length, + ContentProvider content_provider, + const std::string &content_type); + Result Put(const std::string &path, + const Headers &headers, + ContentProviderWithoutLength content_provider, + const std::string &content_type); + Result Put(const std::string &path, const Params ¶ms); + Result Put(const std::string &path, + const Headers &headers, + const Params ¶ms); + Result Put(const std::string &path, + const Headers &headers, + const Params ¶ms, + Progress progress); + Result Put(const std::string &path, const MultipartFormDataItems &items); + Result Put(const std::string &path, + const Headers &headers, + const MultipartFormDataItems &items); + Result Put(const std::string &path, + const Headers &headers, + const MultipartFormDataItems &items, + const std::string &boundary); + Result Put(const std::string &path, + const Headers &headers, + const MultipartFormDataItems &items, + const MultipartFormDataProviderItems &provider_items); + + Result Patch(const std::string &path); + Result Patch(const std::string &path, + const char *body, + size_t content_length, + const std::string &content_type); + Result Patch(const std::string &path, + const char *body, + size_t content_length, + const std::string &content_type, + Progress progress); + Result Patch(const std::string &path, + const Headers &headers, + const char *body, + size_t content_length, + const std::string &content_type); + Result Patch(const std::string &path, + const Headers &headers, + const char *body, + size_t content_length, + const std::string &content_type, + Progress progress); + Result Patch(const std::string &path, + const std::string &body, + const std::string &content_type); + Result Patch(const std::string &path, + const std::string &body, + const std::string &content_type, + Progress progress); + Result Patch(const std::string &path, + const Headers &headers, + const std::string &body, + const std::string &content_type); + Result Patch(const std::string &path, + const Headers &headers, + const std::string &body, + const std::string &content_type, + Progress progress); + Result Patch(const std::string &path, + size_t content_length, + ContentProvider content_provider, + const std::string &content_type); + Result Patch(const std::string &path, + ContentProviderWithoutLength content_provider, + const std::string &content_type); + Result Patch(const std::string &path, + const Headers &headers, + size_t content_length, + ContentProvider content_provider, + const std::string &content_type); + Result Patch(const std::string &path, + const Headers &headers, + ContentProviderWithoutLength content_provider, + const std::string &content_type); + + Result Delete(const std::string &path); + Result Delete(const std::string &path, const Headers &headers); + Result Delete(const std::string &path, + const char *body, + size_t content_length, + const std::string &content_type); + Result Delete(const std::string &path, + const char *body, + size_t content_length, + const std::string &content_type, + Progress progress); + Result Delete(const std::string &path, + const Headers &headers, + const char *body, + size_t content_length, + const std::string &content_type); + Result Delete(const std::string &path, + const Headers &headers, + const char *body, + size_t content_length, + const std::string &content_type, + Progress progress); + Result Delete(const std::string &path, + const std::string &body, + const std::string &content_type); + Result Delete(const std::string &path, + const std::string &body, + const std::string &content_type, + Progress progress); + Result Delete(const std::string &path, + const Headers &headers, + const std::string &body, + const std::string &content_type); + Result Delete(const std::string &path, + const Headers &headers, + const std::string &body, + const std::string &content_type, + Progress progress); + + Result Options(const std::string &path); + Result Options(const std::string &path, const Headers &headers); + + bool send(Request &req, Response &res, Error &error); + Result send(const Request &req); + + void stop(); + + std::string host() const; + int port() const; + + size_t is_socket_open() const; + socket_t socket() const; + + void set_hostname_addr_map(std::map addr_map); + + void set_default_headers(Headers headers); + + void set_header_writer( + std::function const &writer); + + 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 std::string &username, const std::string &password); + void set_bearer_token_auth(const std::string &token); +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + void set_digest_auth(const std::string &username, + const std::string &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 std::string &intf); + + void set_proxy(const std::string &host, int port); + void set_proxy_basic_auth(const std::string &username, + const std::string &password); + void set_proxy_bearer_token_auth(const std::string &token); +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + void set_proxy_digest_auth(const std::string &username, + const std::string &password); +#endif + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + void set_ca_cert_path(const std::string &ca_cert_file_path, + const std::string &ca_cert_dir_path = std::string()); + void set_ca_cert_store(X509_STORE *ca_cert_store); + X509_STORE *create_ca_cert_store(const char *ca_cert, std::size_t size) const; +#endif + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + void enable_server_certificate_verification(bool enabled); +#endif + + void set_logger(Logger logger); + + protected: + struct Socket { + socket_t sock = INVALID_SOCKET; +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + SSL *ssl = nullptr; +#endif + + bool is_open() const { + return sock != INVALID_SOCKET; + } + }; + + virtual bool create_and_connect_socket(Socket &socket, 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) const; + 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) const; + + void copy_settings(const ClientImpl &rhs); + + // Socket endpoint 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_; + + // Header writer + std::function header_writer_ = + detail::write_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: + bool send_(Request &req, Response &res, Error &error); + Result send_(Request &&req); + + socket_t create_client_socket(Error &error) const; + bool read_response_line(Stream &strm, + const Request &req, + Response &res) const; + 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 *body, + size_t content_length, + ContentProvider content_provider, + ContentProviderWithoutLength content_provider_without_length, + const std::string &content_type, + Error &error); + Result send_with_content_provider( + const std::string &method, + const std::string &path, + const Headers &headers, + const char *body, + size_t content_length, + ContentProvider content_provider, + ContentProviderWithoutLength content_provider_without_length, + const std::string &content_type, + Progress progress); + ContentProviderWithoutLength get_multipart_content_provider( + const std::string &boundary, + const MultipartFormDataItems &items, + const MultipartFormDataProviderItems &provider_items) const; + + 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 &operator=(Client &&) = default; + + ~Client(); + + bool is_valid() const; + + Result Get(const std::string &path); + Result Get(const std::string &path, const Headers &headers); + Result Get(const std::string &path, Progress progress); + Result Get(const std::string &path, + const Headers &headers, + Progress progress); + Result Get(const std::string &path, ContentReceiver content_receiver); + Result Get(const std::string &path, + const Headers &headers, + ContentReceiver content_receiver); + Result Get(const std::string &path, + ContentReceiver content_receiver, + Progress progress); + Result Get(const std::string &path, + const Headers &headers, + ContentReceiver content_receiver, + Progress progress); + Result Get(const std::string &path, + ResponseHandler response_handler, + ContentReceiver content_receiver); + Result Get(const std::string &path, + const Headers &headers, + ResponseHandler response_handler, + ContentReceiver content_receiver); + Result Get(const std::string &path, + const Headers &headers, + ResponseHandler response_handler, + ContentReceiver content_receiver, + Progress progress); + Result Get(const std::string &path, + ResponseHandler response_handler, + ContentReceiver content_receiver, + Progress progress); + + Result Get(const std::string &path, + const Params ¶ms, + const Headers &headers, + Progress progress = nullptr); + Result Get(const std::string &path, + const Params ¶ms, + const Headers &headers, + ContentReceiver content_receiver, + Progress progress = nullptr); + Result Get(const std::string &path, + const Params ¶ms, + const Headers &headers, + ResponseHandler response_handler, + ContentReceiver content_receiver, + Progress progress = nullptr); + + Result Head(const std::string &path); + Result Head(const std::string &path, const Headers &headers); + + Result Post(const std::string &path); + Result Post(const std::string &path, const Headers &headers); + Result Post(const std::string &path, + const char *body, + size_t content_length, + const std::string &content_type); + Result Post(const std::string &path, + const Headers &headers, + const char *body, + size_t content_length, + const std::string &content_type); + Result Post(const std::string &path, + const Headers &headers, + const char *body, + size_t content_length, + const std::string &content_type, + Progress progress); + Result Post(const std::string &path, + const std::string &body, + const std::string &content_type); + Result Post(const std::string &path, + const std::string &body, + const std::string &content_type, + Progress progress); + Result Post(const std::string &path, + const Headers &headers, + const std::string &body, + const std::string &content_type); + Result Post(const std::string &path, + const Headers &headers, + const std::string &body, + const std::string &content_type, + Progress progress); + Result Post(const std::string &path, + size_t content_length, + ContentProvider content_provider, + const std::string &content_type); + Result Post(const std::string &path, + ContentProviderWithoutLength content_provider, + const std::string &content_type); + Result Post(const std::string &path, + const Headers &headers, + size_t content_length, + ContentProvider content_provider, + const std::string &content_type); + Result Post(const std::string &path, + const Headers &headers, + ContentProviderWithoutLength content_provider, + const std::string &content_type); + Result Post(const std::string &path, const Params ¶ms); + Result Post(const std::string &path, + const Headers &headers, + const Params ¶ms); + Result Post(const std::string &path, + const Headers &headers, + const Params ¶ms, + Progress progress); + Result Post(const std::string &path, const MultipartFormDataItems &items); + Result Post(const std::string &path, + const Headers &headers, + const MultipartFormDataItems &items); + Result Post(const std::string &path, + const Headers &headers, + const MultipartFormDataItems &items, + const std::string &boundary); + Result Post(const std::string &path, + const Headers &headers, + const MultipartFormDataItems &items, + const MultipartFormDataProviderItems &provider_items); + + Result Put(const std::string &path); + Result Put(const std::string &path, + const char *body, + size_t content_length, + const std::string &content_type); + Result Put(const std::string &path, + const Headers &headers, + const char *body, + size_t content_length, + const std::string &content_type); + Result Put(const std::string &path, + const Headers &headers, + const char *body, + size_t content_length, + const std::string &content_type, + Progress progress); + Result Put(const std::string &path, + const std::string &body, + const std::string &content_type); + Result Put(const std::string &path, + const std::string &body, + const std::string &content_type, + Progress progress); + Result Put(const std::string &path, + const Headers &headers, + const std::string &body, + const std::string &content_type); + Result Put(const std::string &path, + const Headers &headers, + const std::string &body, + const std::string &content_type, + Progress progress); + Result Put(const std::string &path, + size_t content_length, + ContentProvider content_provider, + const std::string &content_type); + Result Put(const std::string &path, + ContentProviderWithoutLength content_provider, + const std::string &content_type); + Result Put(const std::string &path, + const Headers &headers, + size_t content_length, + ContentProvider content_provider, + const std::string &content_type); + Result Put(const std::string &path, + const Headers &headers, + ContentProviderWithoutLength content_provider, + const std::string &content_type); + Result Put(const std::string &path, const Params ¶ms); + Result Put(const std::string &path, + const Headers &headers, + const Params ¶ms); + Result Put(const std::string &path, + const Headers &headers, + const Params ¶ms, + Progress progress); + Result Put(const std::string &path, const MultipartFormDataItems &items); + Result Put(const std::string &path, + const Headers &headers, + const MultipartFormDataItems &items); + Result Put(const std::string &path, + const Headers &headers, + const MultipartFormDataItems &items, + const std::string &boundary); + Result Put(const std::string &path, + const Headers &headers, + const MultipartFormDataItems &items, + const MultipartFormDataProviderItems &provider_items); + + Result Patch(const std::string &path); + Result Patch(const std::string &path, + const char *body, + size_t content_length, + const std::string &content_type); + Result Patch(const std::string &path, + const char *body, + size_t content_length, + const std::string &content_type, + Progress progress); + Result Patch(const std::string &path, + const Headers &headers, + const char *body, + size_t content_length, + const std::string &content_type); + Result Patch(const std::string &path, + const Headers &headers, + const char *body, + size_t content_length, + const std::string &content_type, + Progress progress); + Result Patch(const std::string &path, + const std::string &body, + const std::string &content_type); + Result Patch(const std::string &path, + const std::string &body, + const std::string &content_type, + Progress progress); + Result Patch(const std::string &path, + const Headers &headers, + const std::string &body, + const std::string &content_type); + Result Patch(const std::string &path, + const Headers &headers, + const std::string &body, + const std::string &content_type, + Progress progress); + Result Patch(const std::string &path, + size_t content_length, + ContentProvider content_provider, + const std::string &content_type); + Result Patch(const std::string &path, + ContentProviderWithoutLength content_provider, + const std::string &content_type); + Result Patch(const std::string &path, + const Headers &headers, + size_t content_length, + ContentProvider content_provider, + const std::string &content_type); + Result Patch(const std::string &path, + const Headers &headers, + ContentProviderWithoutLength content_provider, + const std::string &content_type); + + Result Delete(const std::string &path); + Result Delete(const std::string &path, const Headers &headers); + Result Delete(const std::string &path, + const char *body, + size_t content_length, + const std::string &content_type); + Result Delete(const std::string &path, + const char *body, + size_t content_length, + const std::string &content_type, + Progress progress); + Result Delete(const std::string &path, + const Headers &headers, + const char *body, + size_t content_length, + const std::string &content_type); + Result Delete(const std::string &path, + const Headers &headers, + const char *body, + size_t content_length, + const std::string &content_type, + Progress progress); + Result Delete(const std::string &path, + const std::string &body, + const std::string &content_type); + Result Delete(const std::string &path, + const std::string &body, + const std::string &content_type, + Progress progress); + Result Delete(const std::string &path, + const Headers &headers, + const std::string &body, + const std::string &content_type); + Result Delete(const std::string &path, + const Headers &headers, + const std::string &body, + const std::string &content_type, + Progress progress); + + Result Options(const std::string &path); + Result Options(const std::string &path, const Headers &headers); + + bool send(Request &req, Response &res, Error &error); + Result send(const Request &req); + + void stop(); + + std::string host() const; + int port() const; + + size_t is_socket_open() const; + socket_t socket() const; + + void set_hostname_addr_map(std::map addr_map); + + void set_default_headers(Headers headers); + + void set_header_writer( + std::function const &writer); + + 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 std::string &username, const std::string &password); + void set_bearer_token_auth(const std::string &token); +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + void set_digest_auth(const std::string &username, + const std::string &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 std::string &intf); + + void set_proxy(const std::string &host, int port); + void set_proxy_basic_auth(const std::string &username, + const std::string &password); + void set_proxy_bearer_token_auth(const std::string &token); +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + void set_proxy_digest_auth(const std::string &username, + const std::string &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 std::string &ca_cert_file_path, + const std::string &ca_cert_dir_path = std::string()); + + void set_ca_cert_store(X509_STORE *ca_cert_store); + void load_ca_cert_store(const char *ca_cert, std::size_t size); + + 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, + const char *private_key_password = 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; + + void update_certs(X509 *cert, + EVP_PKEY *private_key, + X509_STORE *client_ca_cert_store = nullptr); + + private: + bool process_and_close_socket(socket_t sock) override; + + SSL_CTX *ctx_; + std::mutex ctx_mutex_; +}; + +class SSLClient final : 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, + const std::string &private_key_password = std::string()); + + explicit SSLClient(const std::string &host, + int port, + X509 *client_cert, + EVP_PKEY *client_key, + const std::string &private_key_password = std::string()); + + ~SSLClient() override; + + bool is_valid() const override; + + void set_ca_cert_store(X509_STORE *ca_cert_store); + void load_ca_cert_store(const char *ca_cert, std::size_t size); + + 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_gracefully); + + 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(static_cast(sec), static_cast(usec)); +} + +inline uint64_t get_header_value_u64(const Headers &headers, + const std::string &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 + +inline uint64_t Request::get_header_value_u64(const std::string &key, + size_t id) const { + return detail::get_header_value_u64(headers, key, id, 0); +} + +inline uint64_t Response::get_header_value_u64(const std::string &key, + size_t id) const { + return detail::get_header_value_u64(headers, key, id, 0); +} + +template +inline ssize_t Stream::write_format(const char *fmt, const Args &...args) { + const auto bufsiz = 2048; + std::array buf{}; + + auto sn = snprintf(buf.data(), buf.size() - 1, fmt, args...); + 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); + n = static_cast( + snprintf(&glowable_buf[0], glowable_buf.size() - 1, fmt, args...)); + } + 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 +} + +inline const char *status_message(int status) { + switch (status) { + case StatusCode::Continue_100: + return "Continue"; + case StatusCode::SwitchingProtocol_101: + return "Switching Protocol"; + case StatusCode::Processing_102: + return "Processing"; + case StatusCode::EarlyHints_103: + return "Early Hints"; + case StatusCode::OK_200: + return "OK"; + case StatusCode::Created_201: + return "Created"; + case StatusCode::Accepted_202: + return "Accepted"; + case StatusCode::NonAuthoritativeInformation_203: + return "Non-Authoritative Information"; + case StatusCode::NoContent_204: + return "No Content"; + case StatusCode::ResetContent_205: + return "Reset Content"; + case StatusCode::PartialContent_206: + return "Partial Content"; + case StatusCode::MultiStatus_207: + return "Multi-Status"; + case StatusCode::AlreadyReported_208: + return "Already Reported"; + case StatusCode::IMUsed_226: + return "IM Used"; + case StatusCode::MultipleChoices_300: + return "Multiple Choices"; + case StatusCode::MovedPermanently_301: + return "Moved Permanently"; + case StatusCode::Found_302: + return "Found"; + case StatusCode::SeeOther_303: + return "See Other"; + case StatusCode::NotModified_304: + return "Not Modified"; + case StatusCode::UseProxy_305: + return "Use Proxy"; + case StatusCode::unused_306: + return "unused"; + case StatusCode::TemporaryRedirect_307: + return "Temporary Redirect"; + case StatusCode::PermanentRedirect_308: + return "Permanent Redirect"; + case StatusCode::BadRequest_400: + return "Bad Request"; + case StatusCode::Unauthorized_401: + return "Unauthorized"; + case StatusCode::PaymentRequired_402: + return "Payment Required"; + case StatusCode::Forbidden_403: + return "Forbidden"; + case StatusCode::NotFound_404: + return "Not Found"; + case StatusCode::MethodNotAllowed_405: + return "Method Not Allowed"; + case StatusCode::NotAcceptable_406: + return "Not Acceptable"; + case StatusCode::ProxyAuthenticationRequired_407: + return "Proxy Authentication Required"; + case StatusCode::RequestTimeout_408: + return "Request Timeout"; + case StatusCode::Conflict_409: + return "Conflict"; + case StatusCode::Gone_410: + return "Gone"; + case StatusCode::LengthRequired_411: + return "Length Required"; + case StatusCode::PreconditionFailed_412: + return "Precondition Failed"; + case StatusCode::PayloadTooLarge_413: + return "Payload Too Large"; + case StatusCode::UriTooLong_414: + return "URI Too Long"; + case StatusCode::UnsupportedMediaType_415: + return "Unsupported Media Type"; + case StatusCode::RangeNotSatisfiable_416: + return "Range Not Satisfiable"; + case StatusCode::ExpectationFailed_417: + return "Expectation Failed"; + case StatusCode::ImATeapot_418: + return "I'm a teapot"; + case StatusCode::MisdirectedRequest_421: + return "Misdirected Request"; + case StatusCode::UnprocessableContent_422: + return "Unprocessable Content"; + case StatusCode::Locked_423: + return "Locked"; + case StatusCode::FailedDependency_424: + return "Failed Dependency"; + case StatusCode::TooEarly_425: + return "Too Early"; + case StatusCode::UpgradeRequired_426: + return "Upgrade Required"; + case StatusCode::PreconditionRequired_428: + return "Precondition Required"; + case StatusCode::TooManyRequests_429: + return "Too Many Requests"; + case StatusCode::RequestHeaderFieldsTooLarge_431: + return "Request Header Fields Too Large"; + case StatusCode::UnavailableForLegalReasons_451: + return "Unavailable For Legal Reasons"; + case StatusCode::NotImplemented_501: + return "Not Implemented"; + case StatusCode::BadGateway_502: + return "Bad Gateway"; + case StatusCode::ServiceUnavailable_503: + return "Service Unavailable"; + case StatusCode::GatewayTimeout_504: + return "Gateway Timeout"; + case StatusCode::HttpVersionNotSupported_505: + return "HTTP Version Not Supported"; + case StatusCode::VariantAlsoNegotiates_506: + return "Variant Also Negotiates"; + case StatusCode::InsufficientStorage_507: + return "Insufficient Storage"; + case StatusCode::LoopDetected_508: + return "Loop Detected"; + case StatusCode::NotExtended_510: + return "Not Extended"; + case StatusCode::NetworkAuthenticationRequired_511: + return "Network Authentication Required"; + + default: + case StatusCode::InternalServerError_500: + return "Internal Server Error"; + } +} + +inline std::string get_bearer_token_auth(const Request &req) { + if (req.has_header("Authorization")) { + static std::string BearerHeaderPrefix = "Bearer "; + return req.get_header_value("Authorization") + .substr(BearerHeaderPrefix.length()); + } + return ""; +} + +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 (no error)"; + case Error::Connection: + return "Could not establish connection"; + case Error::BindIPAddress: + return "Failed to bind IP address"; + case Error::Read: + return "Failed to read connection"; + case Error::Write: + return "Failed to write connection"; + case Error::ExceedRedirectCount: + return "Maximum redirect count exceeded"; + case Error::Canceled: + return "Connection handling canceled"; + case Error::SSLConnection: + return "SSL connection failed"; + case Error::SSLLoadingCerts: + return "SSL certificate loading failed"; + case Error::SSLServerVerification: + return "SSL server verification failed"; + case Error::UnsupportedMultipartBoundaryChars: + return "Unsupported HTTP multipart boundary characters"; + case Error::Compression: + return "Compression failed"; + case Error::ConnectionTimeout: + return "Connection timed out"; + case Error::ProxyConnection: + return "Proxy connection failed"; + 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; +} + +inline uint64_t Result::get_request_header_value_u64(const std::string &key, + size_t id) const { + return detail::get_header_value_u64(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 std::string &hostname); + +void hosted_at(const std::string &hostname, std::vector &addrs); + +std::string append_query_params(const std::string &path, const Params ¶ms); + +std::pair make_range_header(const 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 divide( + const char *data, + std::size_t size, + char d, + std::function + fn); + +void divide( + const std::string &str, + char d, + std::function + fn); + +void split(const char *b, + const char *e, + char d, + std::function fn); + +void split(const char *b, + const char *e, + char d, + size_t m, + 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 std::string &host, + const std::string &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 std::string &key, + size_t id = 0, + const char *def = nullptr); + +std::string params_to_query_str(const Params ¶ms); + +void parse_query_text(const char *data, std::size_t size, Params ¶ms); + +void parse_query_text(const std::string &s, Params ¶ms); + +bool parse_multipart_boundary(const std::string &content_type, + std::string &boundary); + +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 final : 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; + void get_local_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 final : public compressor { + public: + ~nocompressor() override = default; + + bool compress(const char *data, + size_t data_length, + bool /*last*/, + Callback callback) override; +}; + +#ifdef CPPHTTPLIB_ZLIB_SUPPORT +class gzip_compressor final : public compressor { + public: + gzip_compressor(); + ~gzip_compressor() override; + + 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 final : public decompressor { + public: + gzip_decompressor(); + ~gzip_decompressor() override; + + 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 final : 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 final : 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_; +}; + +class mmap { + public: + mmap(const char *path); + ~mmap(); + + bool open(const char *path); + void close(); + + bool is_open() const; + size_t size() const; + const char *data() const; + + private: +#if defined(_WIN32) + HANDLE hFile_; + HANDLE hMapping_; +#else + int fd_; +#endif + size_t size_; + void *addr_; +}; + +} // 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; + } + auto 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) { + static const auto 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] = static_cast(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()); + + auto val = 0; + auto 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] != '/') { + if (path[i] == '\0') { + return false; + } else if (path[i] == '\\') { + return false; + } + 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') { + auto 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 { + auto val = 0; + if (from_hex_to_i(s, i + 1, 2, val)) { + // 2 digits hex codes + result += static_cast(val); + i += 2; // '00' + } else { + result += s[i]; + } + } + } else if (convert_plus_to_space && s[i] == '+') { + result += ' '; + } else { + result += s[i]; + } + } + + return result; +} + +inline void read_file(const std::string &path, std::string &out) { + std::ifstream fs(path, std::ios_base::binary); + fs.seekg(0, std::ios_base::end); + auto size = fs.tellg(); + fs.seekg(0); + out.resize(static_cast(size)); + fs.read(&out[0], static_cast(size)); +} + +inline std::string file_extension(const std::string &path) { + std::smatch m; + static auto re = std::regex("\\.([a-zA-Z0-9]+)$"); + if (std::regex_search(path, m, re)) { + return m[1].str(); + } + return std::string(); +} + +inline bool is_space_or_tab(char c) { + return c == ' ' || c == '\t'; +} + +inline std::pair trim(const char *b, + const char *e, + size_t left, + size_t right) { + while (b + left < e && is_space_or_tab(b[left])) { + left++; + } + while (right > 0 && is_space_or_tab(b[right - 1])) { + right--; + } + return std::make_pair(left, right); +} + +inline std::string trim_copy(const std::string &s) { + auto r = trim(s.data(), s.data() + s.size(), 0, s.size()); + return s.substr(r.first, r.second - r.first); +} + +inline std::string trim_double_quotes_copy(const std::string &s) { + if (s.length() >= 2 && s.front() == '"' && s.back() == '"') { + return s.substr(1, s.size() - 2); + } + return s; +} + +inline void divide( + const char *data, + std::size_t size, + char d, + std::function + fn) { + const auto it = std::find(data, data + size, d); + const auto found = static_cast(it != data + size); + const auto lhs_data = data; + const auto lhs_size = static_cast(it - data); + const auto rhs_data = it + found; + const auto rhs_size = size - lhs_size - found; + + fn(lhs_data, lhs_size, rhs_data, rhs_size); +} + +inline void divide( + const std::string &str, + char d, + std::function + fn) { + divide(str.data(), str.size(), d, std::move(fn)); +} + +inline void split(const char *b, + const char *e, + char d, + std::function fn) { + return split(b, e, d, (std::numeric_limits::max)(), std::move(fn)); +} + +inline void split(const char *b, + const char *e, + char d, + size_t m, + std::function fn) { + size_t i = 0; + size_t beg = 0; + size_t count = 1; + + while (e ? (b + i < e) : (b[i] != '\0')) { + if (b[i] == d && count < m) { + auto r = trim(b, e, beg, i); + if (r.first < r.second) { + fn(&b[r.first], &b[r.second]); + } + beg = i + 1; + count++; + } + 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 mmap::mmap(const char *path) +#if defined(_WIN32) + : hFile_(NULL) + , hMapping_(NULL) +#else + : fd_(-1) +#endif + , size_(0) + , addr_(nullptr) { + open(path); +} + +inline mmap::~mmap() { + close(); +} + +inline bool mmap::open(const char *path) { + close(); + +#if defined(_WIN32) + std::wstring wpath; + for (size_t i = 0; i < strlen(path); i++) { + wpath += path[i]; + } + +#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP | WINAPI_PARTITION_SYSTEM | \ + WINAPI_PARTITION_GAMES) && \ + (_WIN32_WINNT >= _WIN32_WINNT_WIN8) + hFile_ = ::CreateFile2( + wpath.c_str(), GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING, NULL); +#else + hFile_ = ::CreateFileW(wpath.c_str(), + GENERIC_READ, + FILE_SHARE_READ, + NULL, + OPEN_EXISTING, + FILE_ATTRIBUTE_NORMAL, + NULL); +#endif + + if (hFile_ == INVALID_HANDLE_VALUE) { + return false; + } + +#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP | WINAPI_PARTITION_SYSTEM | \ + WINAPI_PARTITION_GAMES) + LARGE_INTEGER size{}; + if (!::GetFileSizeEx(hFile_, &size)) { + return false; + } + size_ = static_cast(size.QuadPart); +#else + DWORD sizeHigh; + DWORD sizeLow; + sizeLow = ::GetFileSize(hFile_, &sizeHigh); + if (sizeLow == INVALID_FILE_SIZE) { + return false; + } + size_ = (static_cast(sizeHigh) << (sizeof(DWORD) * 8)) | sizeLow; +#endif + +#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP | WINAPI_PARTITION_SYSTEM) && \ + (_WIN32_WINNT >= _WIN32_WINNT_WIN8) + hMapping_ = + ::CreateFileMappingFromApp(hFile_, NULL, PAGE_READONLY, size_, NULL); +#else + hMapping_ = ::CreateFileMappingW( + hFile_, NULL, PAGE_READONLY, size.HighPart, size.LowPart, NULL); +#endif + + if (hMapping_ == NULL) { + close(); + return false; + } + +#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP | WINAPI_PARTITION_SYSTEM) && \ + (_WIN32_WINNT >= _WIN32_WINNT_WIN8) + addr_ = ::MapViewOfFileFromApp(hMapping_, FILE_MAP_READ, 0, 0); +#else + addr_ = ::MapViewOfFile(hMapping_, FILE_MAP_READ, 0, 0, 0); +#endif +#else + fd_ = ::open(path, O_RDONLY); + if (fd_ == -1) { + return false; + } + + struct stat sb; + if (fstat(fd_, &sb) == -1) { + close(); + return false; + } + size_ = static_cast(sb.st_size); + + addr_ = ::mmap(NULL, size_, PROT_READ, MAP_PRIVATE, fd_, 0); +#endif + + if (addr_ == nullptr) { + close(); + return false; + } + + return true; +} + +inline bool mmap::is_open() const { + return addr_ != nullptr; +} + +inline size_t mmap::size() const { + return size_; +} + +inline const char *mmap::data() const { + return static_cast(addr_); +} + +inline void mmap::close() { +#if defined(_WIN32) + if (addr_) { + ::UnmapViewOfFile(addr_); + addr_ = nullptr; + } + + if (hMapping_) { + ::CloseHandle(hMapping_); + hMapping_ = NULL; + } + + if (hFile_ != INVALID_HANDLE_VALUE) { + ::CloseHandle(hFile_); + hFile_ = INVALID_HANDLE_VALUE; + } +#else + if (addr_ != nullptr) { + munmap(addr_, size_); + addr_ = nullptr; + } + + if (fd_ != -1) { + ::close(fd_); + fd_ = -1; + } +#endif + size_ = 0; +} +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 = 0; + 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)) { + auto 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))) { + auto 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 final : 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; + void get_local_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_ = 1024l * 4; +}; + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT +class SSLSocketStream final : 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; + void get_local_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 std::string &host, + const std::string &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.empty()) { + node = ip.c_str(); + // Ask getaddrinfo to convert IP in c-string to address + hints.ai_family = AF_UNSPEC; + hints.ai_flags = AI_NUMERICHOST; + } else { + if (!host.empty()) { + node = host.c_str(); + } + hints.ai_family = address_family; + hints.ai_flags = socket_flags; + } + +#ifndef _WIN32 + if (hints.ai_family == AF_UNIX) { + const auto addrlen = host.length(); + if (addrlen > sizeof(sockaddr_un::sun_path)) { + return INVALID_SOCKET; + } + +#ifdef SOCK_CLOEXEC + auto sock = socket( + hints.ai_family, hints.ai_socktype | SOCK_CLOEXEC, hints.ai_protocol); +#else + auto sock = socket(hints.ai_family, hints.ai_socktype, hints.ai_protocol); +#endif + + if (sock != INVALID_SOCKET) { + sockaddr_un addr{}; + addr.sun_family = AF_UNIX; + std::copy(host.begin(), host.end(), addr.sun_path); + + hints.ai_addr = reinterpret_cast(&addr); + hints.ai_addrlen = static_cast( + sizeof(addr) - sizeof(addr.sun_path) + addrlen); + +#ifndef SOCK_CLOEXEC + fcntl(sock, F_SETFD, FD_CLOEXEC); +#endif + + if (socket_options) { + socket_options(sock); + } + + bool dummy; + if (!bind_or_connect(sock, hints, dummy)) { + close_socket(sock); + sock = INVALID_SOCKET; + } + } + return sock; + } +#endif + + 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 + +#ifdef SOCK_CLOEXEC + auto sock = + socket(rp->ai_family, rp->ai_socktype | SOCK_CLOEXEC, rp->ai_protocol); +#else + auto sock = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol); +#endif + +#endif + if (sock == INVALID_SOCKET) { + continue; + } + +#if !defined _WIN32 && !defined SOCK_CLOEXEC + if (fcntl(sock, F_SETFD, FD_CLOEXEC) == -1) { + close_socket(sock); + continue; + } +#endif + + if (tcp_nodelay) { + auto yes = 1; +#ifdef _WIN32 + setsockopt(sock, + IPPROTO_TCP, + TCP_NODELAY, + reinterpret_cast(&yes), + sizeof(yes)); +#else + setsockopt(sock, + IPPROTO_TCP, + TCP_NODELAY, + reinterpret_cast(&yes), + sizeof(yes)); +#endif + } + + if (socket_options) { + socket_options(sock); + } + + if (rp->ai_family == AF_INET6) { + auto no = 0; +#ifdef _WIN32 + setsockopt(sock, + IPPROTO_IPV6, + IPV6_V6ONLY, + reinterpret_cast(&no), + sizeof(no)); +#else + setsockopt(sock, + IPPROTO_IPV6, + IPV6_V6ONLY, + reinterpret_cast(&no), + sizeof(no)); +#endif + } + + // bind or connect + auto quit = false; + if (bind_or_connect(sock, *rp, quit)) { + freeaddrinfo(result); + return sock; + } + + close_socket(sock); + + if (quit) { + break; + } + } + + 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 std::string &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.c_str(), "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 && !defined _AIX && !defined __MVS__ +#define USE_IF2IP +#endif + +#ifdef USE_IF2IP +inline std::string if2ip(int address_family, const std::string &ifn) { + struct ifaddrs *ifap; + getifaddrs(&ifap); + std::string addr_candidate; + for (auto ifa = ifap; ifa; ifa = ifa->ifa_next) { + if (ifa->ifa_addr && ifn == ifa->ifa_name && + (AF_UNSPEC == address_family || + ifa->ifa_addr->sa_family == address_family)) { + 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); + } + } else if (ifa->ifa_addr->sa_family == AF_INET6) { + auto sa = reinterpret_cast(ifa->ifa_addr); + if (!IN6_IS_ADDR_LINKLOCAL(&sa->sin6_addr)) { + char buf[INET6_ADDRSTRLEN] = {}; + if (inet_ntop(AF_INET6, &sa->sin6_addr, buf, INET6_ADDRSTRLEN)) { + // equivalent to mac's IN6_IS_ADDR_UNIQUE_LOCAL + auto s6_addr_head = sa->sin6_addr.s6_addr[0]; + if (s6_addr_head == 0xfc || s6_addr_head == 0xfd) { + addr_candidate = std::string(buf, INET6_ADDRSTRLEN); + } else { + freeifaddrs(ifap); + return std::string(buf, INET6_ADDRSTRLEN); + } + } + } + } + } + } + freeifaddrs(ifap); + return addr_candidate; +} +#endif + +inline socket_t create_client_socket(const std::string &host, + const std::string &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 &quit) -> bool { + if (!intf.empty()) { +#ifdef USE_IF2IP + auto ip_from_if = if2ip(address_family, intf); + if (ip_from_if.empty()) { + ip_from_if = intf; + } + if (!bind_ip_address(sock2, ip_from_if)) { + 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) { + if (error == Error::ConnectionTimeout) { + quit = true; + } + 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, + reinterpret_cast(&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, + reinterpret_cast(&tv), + sizeof(tv)); +#endif + } + { + +#ifdef _WIN32 + auto timeout = static_cast(write_timeout_sec * 1000 + + write_timeout_usec / 1000); + setsockopt(sock2, + SOL_SOCKET, + SO_SNDTIMEO, + reinterpret_cast(&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, + reinterpret_cast(&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_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_local_ip_and_port(socket_t sock, std::string &ip, int &port) { + struct sockaddr_storage addr; + socklen_t addr_len = sizeof(addr); + if (!getsockname( + sock, reinterpret_cast(&addr), &addr_len)) { + get_ip_and_port(addr, addr_len, ip, port); + } +} + +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)) { +#ifndef _WIN32 + if (addr.ss_family == AF_UNIX) { +#if defined(__linux__) + struct ucred ucred; + socklen_t len = sizeof(ucred); + if (getsockopt(sock, SOL_SOCKET, SO_PEERCRED, &ucred, &len) == 0) { + port = ucred.pid; + } +#elif defined(SOL_LOCAL) && defined(SO_PEERPID) // __APPLE__ + pid_t pid; + socklen_t len = sizeof(pid); + if (getsockopt(sock, SOL_LOCAL, SO_PEERPID, &pid, &len) == 0) { + port = pid; + } +#endif + return; + } +#endif + get_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, + // Unsets the 6 high bits of h, therefore no overflow happens + (((std::numeric_limits::max)() >> 6) & + 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 std::string find_content_type( + const std::string &path, + const std::map &user_data, + const std::string &default_content_type) { + auto ext = file_extension(path); + + auto it = user_data.find(ext); + if (it != user_data.end()) { + return it->second; + } + + using udl::operator""_t; + + switch (str2tag(ext)) { + default: + return default_content_type; + + case "css"_t: + return "text/css"; + case "csv"_t: + return "text/csv"; + case "htm"_t: + case "html"_t: + return "text/html"; + case "js"_t: + case "mjs"_t: + return "text/javascript"; + case "txt"_t: + return "text/plain"; + case "vtt"_t: + return "text/vtt"; + + 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 "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 bool can_compress_content_type(const std::string &content_type) { + using udl::operator""_t; + + auto tag = str2tag(content_type); + + switch (tag) { + case "image/svg+xml"_t: + case "application/javascript"_t: + case "application/json"_t: + case "application/xml"_t: + case "application/protobuf"_t: + case "application/xhtml+xml"_t: + return true; + + default: + return !content_type.rfind("text/", 0) && tag != "text/event-stream"_t; + } +} + +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; + auto 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_); + + auto 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 && ret == Z_OK) { + strm_.avail_out = static_cast(buff.size()); + strm_.next_out = reinterpret_cast(buff.data()); + + ret = inflate(&strm_, Z_NO_FLUSH); + + assert(ret != Z_STREAM_ERROR); + switch (ret) { + case Z_NEED_DICT: + case Z_DATA_ERROR: + case Z_MEM_ERROR: + inflateEnd(&strm_); + return false; + } + + if (!callback(buff.data(), buff.size() - strm_.avail_out)) { + return false; + } + } + + 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; + } + + auto next_in = reinterpret_cast(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 std::string &key) { + return headers.find(key) != headers.end(); +} + +inline const char *get_header_value(const Headers &headers, + const std::string &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; +} + +inline bool compare_case_ignore(const std::string &a, const std::string &b) { + if (a.size() != b.size()) { + return false; + } + for (size_t i = 0; i < b.size(); i++) { + if (::tolower(a[i]) != ::tolower(b[i])) { + return false; + } + } + return true; +} + +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) { + auto key_len = key_end - beg; + if (!key_len) { + return false; + } + + auto key = std::string(beg, key_end); + auto val = compare_case_ignore(key, "Location") + ? std::string(p, end) + : decode_url(std::string(p, end), false); + fn(key, val); + 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, + [&](const std::string &key, const std::string &val) { + headers.emplace(key, 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 true; + } + + if (!out(buf, static_cast(n), r, 0)) { + return false; + } + r += static_cast(n); + } + + return true; +} + +template +inline bool read_content_chunked(Stream &strm, + T &x, + 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") != 0) { + return false; + } + + if (!line_reader.getline()) { + return false; + } + } + + assert(chunk_len == 0); + + // Trailer + if (!line_reader.getline()) { + return false; + } + + while (strcmp(line_reader.ptr(), "\r\n") != 0) { + if (line_reader.size() > CPPHTTPLIB_HEADER_MAX_LENGTH) { + return false; + } + + // Exclude line terminator + constexpr auto line_terminator_len = 2; + auto end = line_reader.ptr() + line_reader.size() - line_terminator_len; + + parse_header(line_reader.ptr(), + end, + [&](const std::string &key, const std::string &val) { + x.headers.emplace(key, val); + }); + + if (!line_reader.getline()) { + return false; + } + } + + return true; +} + +inline bool is_chunked_transfer_encoding(const Headers &headers) { + return compare_case_ignore( + 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 = StatusCode::UnsupportedMediaType_415; + return false; +#endif + } else if (encoding.find("br") != std::string::npos) { +#ifdef CPPHTTPLIB_BROTLI_SUPPORT + decompressor = detail::make_unique(); +#else + status = StatusCode::UnsupportedMediaType_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 = StatusCode::InternalServerError_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, x, out); + } else if (!has_header(x.headers, "Content-Length")) { + ret = read_content_without_length(strm, out); + } else { + auto len = get_header_value_u64(x.headers, "Content-Length", 0, 0); + if (len > payload_max_length) { + exceed_payload_max_length = true; + skip_content_with_length(strm, len); + ret = false; + } else if (len > 0) { + ret = read_content_with_length(strm, len, std::move(progress), out); + } + } + + if (!ret) { + status = exceed_payload_max_length ? StatusCode::PayloadTooLarge_413 + : StatusCode::BadRequest_400; + } + return ret; + }); +} // namespace detail + +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 (strm.is_writable() && write_data(strm, d, l)) { + offset += l; + } else { + ok = false; + } + } + return ok; + }; + + data_sink.is_writable = [&]() -> bool { return strm.is_writable(); }; + + while (offset < end_offset && !is_shutting_down()) { + if (!strm.is_writable()) { + error = Error::Write; + return false; + } else if (!content_provider(offset, end_offset - offset, data_sink)) { + error = Error::Canceled; + return false; + } else 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 (!strm.is_writable() || !write_data(strm, d, l)) { + ok = false; + } + } + return ok; + }; + + data_sink.is_writable = [&]() -> bool { return strm.is_writable(); }; + + data_sink.done = [&](void) { data_available = false; }; + + while (data_available && !is_shutting_down()) { + if (!strm.is_writable()) { + return false; + } else if (!content_provider(offset, 0, data_sink)) { + return false; + } else 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 (!strm.is_writable() || + !write_data(strm, chunk.data(), chunk.size())) { + ok = false; + } + } + } else { + ok = false; + } + } + return ok; + }; + + data_sink.is_writable = [&]() -> bool { return strm.is_writable(); }; + + auto done_with_trailer = [&](const Headers *trailer) { + 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 (!strm.is_writable() || + !write_data(strm, chunk.data(), chunk.size())) { + ok = false; + return; + } + } + + static const std::string done_marker("0\r\n"); + if (!write_data(strm, done_marker.data(), done_marker.size())) { + ok = false; + } + + // Trailer + if (trailer) { + for (const auto &kv : *trailer) { + std::string field_line = kv.first + ": " + kv.second + "\r\n"; + if (!write_data(strm, field_line.data(), field_line.size())) { + ok = false; + } + } + } + + static const std::string crlf("\r\n"); + if (!write_data(strm, crlf.data(), crlf.size())) { + ok = false; + } + }; + + data_sink.done = [&](void) { done_with_trailer(nullptr); }; + + data_sink.done_with_trailer = [&](const Headers &trailer) { + done_with_trailer(&trailer); + }; + + while (data_available && !is_shutting_down()) { + if (!strm.is_writable()) { + error = Error::Write; + return false; + } else if (!content_provider(offset, 0, data_sink)) { + error = Error::Canceled; + return false; + } else 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 == StatusCode::SeeOther_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; + + if (res.location.empty()) { + 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 char *data, + std::size_t size, + Params ¶ms) { + std::set cache; + split(data, data + size, '&', [&](const char *b, const char *e) { + std::string kv(b, e); + if (cache.find(kv) != cache.end()) { + return; + } + cache.insert(std::move(kv)); + + std::string key; + std::string val; + divide(b, + static_cast(e - b), + '=', + [&](const char *lhs_data, + std::size_t lhs_size, + const char *rhs_data, + std::size_t rhs_size) { + key.assign(lhs_data, lhs_size); + val.assign(rhs_data, rhs_size); + }); + + if (!key.empty()) { + params.emplace(decode_url(key, true), decode_url(val, true)); + } + }); +} + +inline void parse_query_text(const std::string &s, Params ¶ms) { + parse_query_text(s.data(), s.size(), params); +} + +inline bool parse_multipart_boundary(const std::string &content_type, + std::string &boundary) { + auto boundary_keyword = "boundary="; + auto pos = content_type.find(boundary_keyword); + if (pos == std::string::npos) { + return false; + } + auto end = content_type.find(';', pos); + auto beg = pos + strlen(boundary_keyword); + boundary = trim_double_quotes_copy(content_type.substr(beg, end - beg)); + return !boundary.empty(); +} + +inline void parse_disposition_params(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(trim_double_quotes_copy((key)), + trim_double_quotes_copy((val))); + } + }); +} + +#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 + auto is_valid = [](const std::string &str) { + return std::all_of(str.cbegin(), str.cend(), [](unsigned char c) { + return std::isdigit(c); + }); + }; + + if (s.size() > 7 && s.compare(0, 6, "bytes=") == 0) { + const auto pos = static_cast(6); + const auto len = static_cast(s.size() - 6); + auto all_valid_ranges = true; + split(&s[pos], &s[pos + len], ',', [&](const char *b, const char *e) { + if (!all_valid_ranges) { + return; + } + + const auto it = std::find(b, e, '-'); + if (it == e) { + all_valid_ranges = false; + return; + } + + const auto lhs = std::string(b, it); + const auto rhs = std::string(it + 1, e); + if (!is_valid(lhs) || !is_valid(rhs)) { + all_valid_ranges = false; + return; + } + + const auto first = + static_cast(lhs.empty() ? -1 : std::stoll(lhs)); + const auto last = + static_cast(rhs.empty() ? -1 : std::stoll(rhs)); + if ((first == -1 && last == -1) || + (first != -1 && last != -1 && first > last)) { + all_valid_ranges = false; + return; + } + + ranges.emplace_back(first, last); + }); + return all_valid_ranges && !ranges.empty(); + } + return false; +#ifdef CPPHTTPLIB_NO_EXCEPTIONS +} +#else +} catch (...) { + return false; +} +#endif + +class MultipartFormDataParser { + public: + MultipartFormDataParser() = default; + + void set_boundary(std::string &&boundary) { + boundary_ = boundary; + dash_boundary_crlf_ = dash_ + boundary_ + crlf_; + crlf_dash_boundary_ = crlf_ + dash_ + boundary_; + } + + bool is_valid() const { + return is_valid_; + } + + bool parse(const char *buf, + size_t n, + const ContentReceiver &content_callback, + const MultipartContentHeader &header_callback) { + + buf_append(buf, n); + + while (buf_size() > 0) { + switch (state_) { + case 0: { // Initial boundary + buf_erase(buf_find(dash_boundary_crlf_)); + if (dash_boundary_crlf_.size() > buf_size()) { + return true; + } + if (!buf_start_with(dash_boundary_crlf_)) { + return false; + } + buf_erase(dash_boundary_crlf_.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; + } + + const auto header = buf_head(pos); + + if (!parse_header( + header.data(), + header.data() + header.size(), + [&](const std::string &, const std::string &) {})) { + is_valid_ = false; + return false; + } + + static const std::string header_content_type = "Content-Type:"; + + if (start_with_case_ignore(header, header_content_type)) { + file_.content_type = + trim_copy(header.substr(header_content_type.size())); + } else { + static const std::regex re_content_disposition( + R"~(^Content-Disposition:\s*form-data;\s*(.*)$)~", + std::regex_constants::icase); + + std::smatch m; + if (std::regex_match(header, m, re_content_disposition)) { + Params params; + parse_disposition_params(m[1], params); + + auto it = params.find("name"); + if (it != params.end()) { + file_.name = it->second; + } else { + is_valid_ = false; + return false; + } + + it = params.find("filename"); + if (it != params.end()) { + file_.filename = it->second; + } + + it = params.find("filename*"); + if (it != params.end()) { + // Only allow UTF-8 enconnding... + static const std::regex re_rfc5987_encoding( + R"~(^UTF-8''(.+?)$)~", std::regex_constants::icase); + + std::smatch m2; + if (std::regex_match(it->second, m2, re_rfc5987_encoding)) { + file_.filename = decode_url(m2[1], false); // override... + } else { + is_valid_ = false; + return false; + } + } + } + } + buf_erase(pos + crlf_.size()); + pos = buf_find(crlf_); + } + if (state_ != 3) { + return true; + } + break; + } + case 3: { // Body + if (crlf_dash_boundary_.size() > buf_size()) { + return true; + } + auto pos = buf_find(crlf_dash_boundary_); + if (pos < buf_size()) { + if (!content_callback(buf_data(), pos)) { + is_valid_ = false; + return false; + } + buf_erase(pos + crlf_dash_boundary_.size()); + state_ = 4; + } else { + auto len = buf_size() - crlf_dash_boundary_.size(); + if (len > 0) { + if (!content_callback(buf_data(), len)) { + is_valid_ = false; + return false; + } + buf_erase(len); + } + return true; + } + break; + } + case 4: { // Boundary + if (crlf_.size() > buf_size()) { + return true; + } + if (buf_start_with(crlf_)) { + buf_erase(crlf_.size()); + state_ = 1; + } else { + if (dash_.size() > buf_size()) { + return true; + } + if (buf_start_with(dash_)) { + buf_erase(dash_.size()); + is_valid_ = true; + buf_erase(buf_size()); // Remove epilogue + } else { + return true; + } + } + break; + } + } + } + + 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; + } + + const std::string dash_ = "--"; + const std::string crlf_ = "\r\n"; + std::string boundary_; + std::string dash_boundary_crlf_; + std::string crlf_dash_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 random_string(size_t length) { + 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. + static std::random_device seed_gen; + + // Request 128 bits of entropy for initialization + static std::seed_seq seed_sequence{ + seed_gen(), seed_gen(), seed_gen(), seed_gen()}; + + static std::mt19937 engine(seed_sequence); + + std::string result; + for (size_t i = 0; i < length; i++) { + result += data[engine() % (sizeof(data) - 1)]; + } + return result; +} + +inline std::string make_multipart_data_boundary() { + return "--cpp-httplib-multipart-data-" + detail::random_string(16); +} + +inline bool is_multipart_boundary_chars_valid(const std::string &boundary) { + auto valid = true; + for (size_t i = 0; i < boundary.size(); i++) { + auto c = boundary[i]; + if (!std::isalnum(c) && c != '-' && c != '_') { + valid = false; + break; + } + } + return valid; +} + +template +inline std::string serialize_multipart_formdata_item_begin( + const T &item, + const std::string &boundary) { + std::string 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"; + + return body; +} + +inline std::string serialize_multipart_formdata_item_end() { + return "\r\n"; +} + +inline std::string serialize_multipart_formdata_finish( + const std::string &boundary) { + return "--" + boundary + "--\r\n"; +} + +inline std::string serialize_multipart_formdata_get_content_type( + const std::string &boundary) { + return "multipart/form-data; boundary=" + boundary; +} + +inline std::string serialize_multipart_formdata( + const MultipartFormDataItems &items, + const std::string &boundary, + bool finish = true) { + std::string body; + + for (const auto &item : items) { + body += serialize_multipart_formdata_item_begin(item, boundary); + body += item.content + serialize_multipart_formdata_item_end(); + } + + if (finish) { + body += serialize_multipart_formdata_finish(boundary); + } + + return body; +} + +inline bool range_error(Request &req, Response &res) { + if (!req.ranges.empty() && 200 <= res.status && res.status < 300) { + ssize_t contant_len = static_cast( + res.content_length_ ? res.content_length_ : res.body.size()); + + ssize_t prev_first_pos = -1; + ssize_t prev_last_pos = -1; + size_t overwrapping_count = 0; + + // NOTE: The following Range check is based on '14.2. Range' in RFC 9110 + // 'HTTP Semantics' to avoid potential denial-of-service attacks. + // https://www.rfc-editor.org/rfc/rfc9110#section-14.2 + + // Too many ranges + if (req.ranges.size() > CPPHTTPLIB_RANGE_MAX_COUNT) { + return true; + } + + for (auto &r : req.ranges) { + auto &first_pos = r.first; + auto &last_pos = r.second; + + if (first_pos == -1 && last_pos == -1) { + first_pos = 0; + last_pos = contant_len; + } + + if (first_pos == -1) { + first_pos = contant_len - last_pos; + last_pos = contant_len - 1; + } + + if (last_pos == -1) { + last_pos = contant_len - 1; + } + + // Range must be within content length + if (!(0 <= first_pos && first_pos <= last_pos && + last_pos <= contant_len - 1)) { + return true; + } + + // Ranges must be in ascending order + if (first_pos <= prev_first_pos) { + return true; + } + + // Request must not have more than two overlapping ranges + if (first_pos <= prev_last_pos) { + overwrapping_count++; + if (overwrapping_count > 2) { + return true; + } + } + + prev_first_pos = (std::max)(prev_first_pos, first_pos); + prev_last_pos = (std::max)(prev_last_pos, last_pos); + } + } + + return false; +} + +inline std::pair get_range_offset_and_length( + Range r, + size_t content_length) { + assert(r.first != -1 && r.second != -1); + assert(0 <= r.first && r.first < static_cast(content_length)); + assert(r.first <= r.second && + r.second < static_cast(content_length)); + (void)(content_length); + return std::make_pair(r.first, static_cast(r.second - r.first) + 1); +} + +inline std::string make_content_range_header_field( + const std::pair &offset_and_length, + size_t content_length) { + auto st = offset_and_length.first; + auto ed = st + offset_and_length.second - 1; + + std::string field = "bytes "; + field += std::to_string(st); + field += "-"; + field += std::to_string(ed); + field += "/"; + field += std::to_string(content_length); + return field; +} + +template +bool process_multipart_ranges_data(const Request &req, + const std::string &boundary, + const std::string &content_type, + size_t content_length, + 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 offset_and_length = + get_range_offset_and_length(req.ranges[i], content_length); + + ctoken("Content-Range: "); + stoken(make_content_range_header_field(offset_and_length, content_length)); + ctoken("\r\n"); + ctoken("\r\n"); + + if (!content(offset_and_length.first, offset_and_length.second)) { + return false; + } + ctoken("\r\n"); + } + + ctoken("--"); + stoken(boundary); + ctoken("--"); + + return true; +} + +inline void make_multipart_ranges_data(const Request &req, + Response &res, + const std::string &boundary, + const std::string &content_type, + size_t content_length, + std::string &data) { + process_multipart_ranges_data( + req, + boundary, + content_type, + content_length, + [&](const std::string &token) { data += token; }, + [&](const std::string &token) { data += token; }, + [&](size_t offset, size_t length) { + assert(offset + length <= content_length); + data += res.body.substr(offset, length); + return true; + }); +} + +inline size_t get_multipart_ranges_data_length(const Request &req, + const std::string &boundary, + const std::string &content_type, + size_t content_length) { + size_t data_length = 0; + + process_multipart_ranges_data( + req, + boundary, + content_type, + content_length, + [&](const std::string &token) { data_length += token.size(); }, + [&](const std::string &token) { data_length += token.size(); }, + [&](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, + size_t content_length, + const T &is_shutting_down) { + return process_multipart_ranges_data( + req, + boundary, + content_type, + content_length, + [&](const std::string &token) { strm.write(token); }, + [&](const std::string &token) { strm.write(token); }, + [&](size_t offset, size_t length) { + return write_content( + strm, res.content_provider_, offset, length, is_shutting_down); + }); +} + +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 std::string &s) { + auto p = s.c_str(); + while (*p) { + if (*p == '\r' || *p == '\n') { + return true; + } + p++; + } + return false; +} + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT +inline std::string message_digest(const std::string &s, const EVP_MD *algo) { + auto context = std::unique_ptr( + EVP_MD_CTX_new(), EVP_MD_CTX_free); + + unsigned int hash_length = 0; + unsigned char hash[EVP_MAX_MD_SIZE]; + + EVP_DigestInit_ex(context.get(), algo, nullptr); + EVP_DigestUpdate(context.get(), s.c_str(), s.size()); + EVP_DigestFinal_ex(context.get(), hash, &hash_length); + + std::stringstream ss; + for (auto i = 0u; i < hash_length; ++i) { + ss << std::hex << std::setw(2) << std::setfill('0') + << static_cast(hash[i]); + } + + return ss.str(); +} + +inline std::string MD5(const std::string &s) { + return message_digest(s, EVP_md5()); +} + +inline std::string SHA_256(const std::string &s) { + return message_digest(s, EVP_sha256()); +} + +inline std::string SHA_512(const std::string &s) { + return message_digest(s, EVP_sha512()); +} +#endif + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT +#ifdef _WIN32 +// 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; + } + + auto result = 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); + result = true; + } + } + + CertFreeCertificateContext(pContext); + CertCloseStore(hStore, 0); + + return result; +} +#elif defined(CPPHTTPLIB_USE_CERTS_FROM_MACOSX_KEYCHAIN) && defined(__APPLE__) +#if TARGET_OS_OSX +template +using CFObjectPtr = + std::unique_ptr::type, void (*)(CFTypeRef)>; + +inline void cf_object_ptr_deleter(CFTypeRef obj) { + if (obj) { + CFRelease(obj); + } +} + +inline bool retrieve_certs_from_keychain(CFObjectPtr &certs) { + CFStringRef keys[] = {kSecClass, kSecMatchLimit, kSecReturnRef}; + CFTypeRef values[] = { + kSecClassCertificate, kSecMatchLimitAll, kCFBooleanTrue}; + + CFObjectPtr query( + CFDictionaryCreate(nullptr, + reinterpret_cast(keys), + values, + sizeof(keys) / sizeof(keys[0]), + &kCFTypeDictionaryKeyCallBacks, + &kCFTypeDictionaryValueCallBacks), + cf_object_ptr_deleter); + + if (!query) { + return false; + } + + CFTypeRef security_items = nullptr; + if (SecItemCopyMatching(query.get(), &security_items) != errSecSuccess || + CFArrayGetTypeID() != CFGetTypeID(security_items)) { + return false; + } + + certs.reset(reinterpret_cast(security_items)); + return true; +} + +inline bool retrieve_root_certs_from_keychain(CFObjectPtr &certs) { + CFArrayRef root_security_items = nullptr; + if (SecTrustCopyAnchorCertificates(&root_security_items) != errSecSuccess) { + return false; + } + + certs.reset(root_security_items); + return true; +} + +inline bool add_certs_to_x509_store(CFArrayRef certs, X509_STORE *store) { + auto result = false; + for (auto i = 0; i < CFArrayGetCount(certs); ++i) { + const auto cert = reinterpret_cast( + CFArrayGetValueAtIndex(certs, i)); + + if (SecCertificateGetTypeID() != CFGetTypeID(cert)) { + continue; + } + + CFDataRef cert_data = nullptr; + if (SecItemExport(cert, kSecFormatX509Cert, 0, nullptr, &cert_data) != + errSecSuccess) { + continue; + } + + CFObjectPtr cert_data_ptr(cert_data, cf_object_ptr_deleter); + + auto encoded_cert = static_cast( + CFDataGetBytePtr(cert_data_ptr.get())); + + auto x509 = + d2i_X509(NULL, &encoded_cert, CFDataGetLength(cert_data_ptr.get())); + + if (x509) { + X509_STORE_add_cert(store, x509); + X509_free(x509); + result = true; + } + } + + return result; +} + +inline bool load_system_certs_on_macos(X509_STORE *store) { + auto result = false; + CFObjectPtr certs(nullptr, cf_object_ptr_deleter); + if (retrieve_certs_from_keychain(certs) && certs) { + result = add_certs_to_x509_store(certs.get(), store); + } + + if (retrieve_root_certs_from_keychain(certs) && certs) { + result = add_certs_to_x509_store(certs.get(), store) || result; + } + + return result; +} +#endif // TARGET_OS_OSX +#endif // _WIN32 +#endif // CPPHTTPLIB_OPENSSL_SUPPORT + +#ifdef _WIN32 +class WSInit { + public: + WSInit() { + WSADATA wsaData; + if (WSAStartup(0x0002, &wsaData) == 0) + is_valid_ = true; + } + + ~WSInit() { + if (is_valid_) + WSACleanup(); + } + + bool is_valid_ = false; +}; + +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 auto re = std::regex(R"~((?:(?:,\s*)?(.+?)=(?:"(.*?)"|([^,]*))))~"); + auto s = res.get_header_value(auth_key); + auto pos = s.find(' '); + if (pos != std::string::npos) { + auto type = s.substr(0, pos); + if (type == "Basic") { + return false; + } else if (type == "Digest") { + s = s.substr(pos + 1); + auto beg = std::sregex_iterator(s.begin(), s.end(), re); + for (auto i = beg; i != std::sregex_iterator(); ++i) { + const auto &m = *i; + auto key = s.substr(static_cast(m.position(1)), + static_cast(m.length(1))); + auto val = m.length(2) > 0 + ? s.substr(static_cast(m.position(2)), + static_cast(m.length(2))) + : s.substr(static_cast(m.position(3)), + static_cast(m.length(3))); + auth[key] = val; + } + return true; + } + } + } + return false; +} + +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 std::string &hostname) { + std::vector addrs; + hosted_at(hostname, addrs); + if (addrs.empty()) { + return std::string(); + } + return addrs[0]; +} + +inline void hosted_at(const std::string &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.c_str(), 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; + auto dummy = -1; + if (detail::get_ip_and_port( + addr, sizeof(struct sockaddr_storage), ip, dummy)) { + addrs.push_back(ip); + } + } + + freeaddrinfo(result); +} + +inline std::string append_query_params(const std::string &path, + const Params ¶ms) { + std::string path_with_query = path; + const static std::regex re("[^?]+\\?.*"); + auto delm = std::regex_match(path, re) ? '&' : '?'; + path_with_query += delm + detail::params_to_query_str(params); + return path_with_query; +} + +// Header utilities +inline std::pair make_range_header( + const Ranges &ranges) { + std::string field = "bytes="; + auto i = 0; + for (const 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 std::string &key) const { + return detail::has_header(headers, key); +} + +inline std::string Request::get_header_value(const std::string &key, + size_t id) const { + return detail::get_header_value(headers, key, id, ""); +} + +inline size_t Request::get_header_value_count(const std::string &key) const { + auto r = headers.equal_range(key); + return static_cast(std::distance(r.first, r.second)); +} + +inline void Request::set_header(const std::string &key, + const std::string &val) { + if (!detail::has_crlf(key) && !detail::has_crlf(val)) { + headers.emplace(key, val); + } +} + +inline bool Request::has_param(const std::string &key) const { + return params.find(key) != params.end(); +} + +inline std::string Request::get_param_value(const std::string &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 std::string &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 std::string &key) const { + return files.find(key) != files.end(); +} + +inline MultipartFormData Request::get_file_value(const std::string &key) const { + auto it = files.find(key); + if (it != files.end()) { + return it->second; + } + return MultipartFormData(); +} + +inline std::vector Request::get_file_values( + const std::string &key) const { + std::vector values; + auto rng = files.equal_range(key); + for (auto it = rng.first; it != rng.second; it++) { + values.push_back(it->second); + } + return values; +} + +// Response implementation +inline bool Response::has_header(const std::string &key) const { + return headers.find(key) != headers.end(); +} + +inline std::string Response::get_header_value(const std::string &key, + size_t id) const { + return detail::get_header_value(headers, key, id, ""); +} + +inline size_t Response::get_header_value_count(const std::string &key) const { + auto r = headers.equal_range(key); + return static_cast(std::distance(r.first, r.second)); +} + +inline void Response::set_header(const std::string &key, + const std::string &val) { + if (!detail::has_crlf(key) && !detail::has_crlf(val)) { + headers.emplace(key, val); + } +} + +inline void Response::set_redirect(const std::string &url, int stat) { + if (!detail::has_crlf(url)) { + set_header("Location", url); + if (300 <= stat && stat < 400) { + this->status = stat; + } else { + this->status = StatusCode::Found_302; + } + } +} + +inline void Response::set_content(const char *s, + size_t n, + const std::string &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 std::string &content_type) { + set_content(s.data(), s.size(), content_type); +} + +inline void Response::set_content(std::string &&s, + const std::string &content_type) { + body = std::move(s); + + auto rng = headers.equal_range("Content-Type"); + headers.erase(rng.first, rng.second); + set_header("Content-Type", content_type); +} + +inline void Response::set_content_provider( + size_t in_length, + const std::string &content_type, + ContentProvider provider, + ContentProviderResourceReleaser resource_releaser) { + set_header("Content-Type", content_type); + content_length_ = in_length; + if (in_length > 0) { + content_provider_ = std::move(provider); + } + content_provider_resource_releaser_ = std::move(resource_releaser); + is_chunked_content_provider_ = false; +} + +inline void Response::set_content_provider( + const std::string &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_ = std::move(resource_releaser); + is_chunked_content_provider_ = false; +} + +inline void Response::set_chunked_content_provider( + const std::string &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_ = std::move(resource_releaser); + is_chunked_content_provider_ = true; +} + +// Result implementation +inline bool Result::has_request_header(const std::string &key) const { + return request_headers_.find(key) != request_headers_.end(); +} + +inline std::string Result::get_request_header_value(const std::string &key, + size_t id) const { + return detail::get_header_value(request_headers_, key, id, ""); +} + +inline size_t Result::get_request_header_value_count( + const std::string &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() = default; + +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 && + is_socket_alive(sock_); +} + +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; + } + +#if defined(_WIN32) && !defined(_WIN64) + 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 void SocketStream::get_local_ip_and_port(std::string &ip, + int &port) const { + return detail::get_local_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 < 1910 + 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 void BufferStream::get_local_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; +} + +inline PathParamsMatcher::PathParamsMatcher(const std::string &pattern) { + // One past the last ending position of a path param substring + std::size_t last_param_end = 0; + +#ifndef CPPHTTPLIB_NO_EXCEPTIONS + // Needed to ensure that parameter names are unique during matcher + // construction + // If exceptions are disabled, only last duplicate path + // parameter will be set + std::unordered_set param_name_set; +#endif + + while (true) { + const auto marker_pos = pattern.find(marker, last_param_end); + if (marker_pos == std::string::npos) { + break; + } + + static_fragments_.push_back( + pattern.substr(last_param_end, marker_pos - last_param_end)); + + const auto param_name_start = marker_pos + 1; + + auto sep_pos = pattern.find(separator, param_name_start); + if (sep_pos == std::string::npos) { + sep_pos = pattern.length(); + } + + auto param_name = + pattern.substr(param_name_start, sep_pos - param_name_start); + +#ifndef CPPHTTPLIB_NO_EXCEPTIONS + if (param_name_set.find(param_name) != param_name_set.cend()) { + std::string msg = "Encountered path parameter '" + param_name + + "' multiple times in route pattern '" + pattern + "'."; + throw std::invalid_argument(msg); + } +#endif + + param_names_.push_back(std::move(param_name)); + + last_param_end = sep_pos + 1; + } + + if (last_param_end < pattern.length()) { + static_fragments_.push_back(pattern.substr(last_param_end)); + } +} + +inline bool PathParamsMatcher::match(Request &request) const { + request.matches = std::smatch(); + request.path_params.clear(); + request.path_params.reserve(param_names_.size()); + + // One past the position at which the path matched the pattern last time + std::size_t starting_pos = 0; + for (size_t i = 0; i < static_fragments_.size(); ++i) { + const auto &fragment = static_fragments_[i]; + + if (starting_pos + fragment.length() > request.path.length()) { + return false; + } + + // Avoid unnecessary allocation by using strncmp instead of substr + + // comparison + if (std::strncmp(request.path.c_str() + starting_pos, + fragment.c_str(), + fragment.length()) != 0) { + return false; + } + + starting_pos += fragment.length(); + + // Should only happen when we have a static fragment after a param + // Example: '/users/:id/subscriptions' + // The 'subscriptions' fragment here does not have a corresponding param + if (i >= param_names_.size()) { + continue; + } + + auto sep_pos = request.path.find(separator, starting_pos); + if (sep_pos == std::string::npos) { + sep_pos = request.path.length(); + } + + const auto ¶m_name = param_names_[i]; + + request.path_params.emplace( + param_name, request.path.substr(starting_pos, sep_pos - starting_pos)); + + // Mark everythin up to '/' as matched + starting_pos = sep_pos + 1; + } + // Returns false if the path is longer than the pattern + return starting_pos >= request.path.length(); +} + +inline bool RegexMatcher::match(Request &request) const { + request.path_params.clear(); + return std::regex_match(request.path, request.matches, regex_); +} + +} // namespace detail + +// HTTP server implementation +inline Server::Server() + : new_task_queue( + [] { return new ThreadPool(CPPHTTPLIB_THREAD_POOL_COUNT); }) { +#ifndef _WIN32 + signal(SIGPIPE, SIG_IGN); +#endif +} + +inline Server::~Server() = default; + +inline std::unique_ptr Server::make_matcher( + const std::string &pattern) { + if (pattern.find("/:") != std::string::npos) { + return detail::make_unique(pattern); + } else { + return detail::make_unique(pattern); + } +} + +inline Server &Server::Get(const std::string &pattern, Handler handler) { + get_handlers_.emplace_back(make_matcher(pattern), std::move(handler)); + return *this; +} + +inline Server &Server::Post(const std::string &pattern, Handler handler) { + post_handlers_.emplace_back(make_matcher(pattern), std::move(handler)); + return *this; +} + +inline Server &Server::Post(const std::string &pattern, + HandlerWithContentReader handler) { + post_handlers_for_content_reader_.emplace_back(make_matcher(pattern), + std::move(handler)); + return *this; +} + +inline Server &Server::Put(const std::string &pattern, Handler handler) { + put_handlers_.emplace_back(make_matcher(pattern), std::move(handler)); + return *this; +} + +inline Server &Server::Put(const std::string &pattern, + HandlerWithContentReader handler) { + put_handlers_for_content_reader_.emplace_back(make_matcher(pattern), + std::move(handler)); + return *this; +} + +inline Server &Server::Patch(const std::string &pattern, Handler handler) { + patch_handlers_.emplace_back(make_matcher(pattern), std::move(handler)); + return *this; +} + +inline Server &Server::Patch(const std::string &pattern, + HandlerWithContentReader handler) { + patch_handlers_for_content_reader_.emplace_back(make_matcher(pattern), + std::move(handler)); + return *this; +} + +inline Server &Server::Delete(const std::string &pattern, Handler handler) { + delete_handlers_.emplace_back(make_matcher(pattern), std::move(handler)); + return *this; +} + +inline Server &Server::Delete(const std::string &pattern, + HandlerWithContentReader handler) { + delete_handlers_for_content_reader_.emplace_back(make_matcher(pattern), + std::move(handler)); + return *this; +} + +inline Server &Server::Options(const std::string &pattern, Handler handler) { + options_handlers_.emplace_back(make_matcher(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 std::string &ext, + const std::string &mime) { + file_extension_and_mimetype_map_[ext] = mime; + return *this; +} + +inline Server &Server::set_default_file_mimetype(const std::string &mime) { + default_file_mimetype_ = 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_core(HandlerWithResponse handler, + std::true_type) { + error_handler_ = std::move(handler); + return *this; +} + +inline Server &Server::set_error_handler_core(Handler handler, + std::false_type) { + 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_header_writer( + std::function const &writer) { + header_writer_ = writer; + 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 std::string &host, + int port, + int socket_flags) { + return bind_internal(host, port, socket_flags) >= 0; +} +inline int Server::bind_to_any_port(const std::string &host, int socket_flags) { + return bind_internal(host, 0, socket_flags); +} + +inline bool Server::listen_after_bind() { + auto se = detail::scope_exit([&]() { done_ = true; }); + return listen_internal(); +} + +inline bool Server::listen(const std::string &host, + int port, + int socket_flags) { + auto se = detail::scope_exit([&]() { done_ = true; }); + return bind_to_port(host, port, socket_flags) && listen_internal(); +} + +inline bool Server::is_running() const { + return is_running_; +} + +inline void Server::wait_until_ready() const { + while (!is_running() && !done_) { + std::this_thread::sleep_for(std::chrono::milliseconds{1}); + } +} + +inline void Server::stop() { + if (is_running_) { + assert(svr_sock_ != INVALID_SOCKET); + std::atomic sock(svr_sock_.exchange(INVALID_SOCKET)); + detail::shutdown_socket(sock); + detail::close_socket(sock); + } +} + +inline bool Server::parse_request_line(const char *s, Request &req) const { + 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; + } + + { + // Skip URL fragment + for (size_t i = 0; i < req.target.size(); i++) { + if (req.target[i] == '#') { + req.target.erase(i); + break; + } + } + + detail::divide(req.target, + '?', + [&](const char *lhs_data, + std::size_t lhs_size, + const char *rhs_data, + std::size_t rhs_size) { + req.path = detail::decode_url( + std::string(lhs_data, lhs_size), false); + detail::parse_query_text(rhs_data, rhs_size, req.params); + }); + } + + return true; +} + +inline bool Server::write_response(Stream &strm, + bool close_connection, + Request &req, + Response &res) { + // NOTE: `req.ranges` should be empty, otherwise it will be applied + // incorrectly to the error content. + req.ranges.clear(); + 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, status_message(res.status))) { + return false; + } + + if (!header_writer_(bstrm, res.headers)) { + return false; + } + + // Flush buffer + auto &data = bstrm.get_buffer(); + detail::write_data(strm, data.data(), data.size()); + } + + // Body + auto ret = true; + if (req.method != "HEAD") { + if (!res.body.empty()) { + if (!detail::write_data(strm, res.body.data(), res.body.size())) { + ret = false; + } + } else if (res.content_provider_) { + if (write_content_with_provider(strm, req, res, boundary, content_type)) { + res.content_provider_success_ = true; + } else { + 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 offset_and_length = detail::get_range_offset_and_length( + req.ranges[0], res.content_length_); + + return detail::write_content(strm, + res.content_provider_, + offset_and_length.first, + offset_and_length.second, + is_shutting_down); + } else { + return detail::write_multipart_ranges_data(strm, + req, + res, + boundary, + content_type, + res.content_length_, + 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; + auto file_count = 0; + 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) { + if (file_count++ == CPPHTTPLIB_MULTIPART_FORM_DATA_FILE_MAX_COUNT) { + return false; + } + 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_FORM_URL_ENCODED_PAYLOAD_MAX_LENGTH) { + res.status = StatusCode::PayloadTooLarge_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 multipart_header, + ContentReceiver multipart_receiver) const { + 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 = StatusCode::BadRequest_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, multipart_header); + if (!ret) { return false; } + pos += read_size; + } + return true; + */ + return multipart_form_data_parser.parse( + buf, n, multipart_receiver, multipart_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 = StatusCode::BadRequest_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)) { + for (const auto &kv : entry.headers) { + res.set_header(kv.first, kv.second); + } + + auto mm = std::make_shared(path.c_str()); + if (!mm->is_open()) { + return false; + } + + res.set_content_provider( + mm->size(), + detail::find_content_type(path, + file_extension_and_mimetype_map_, + default_file_mimetype_), + [mm](size_t offset, size_t length, DataSink &sink) -> bool { + sink.write(mm->data() + offset, length); + return true; + }); + + if (!head && file_request_handler_) { + file_request_handler_(req, res); + } + + return true; + } + } + } + } + return false; +} + +inline socket_t Server::create_server_socket( + const std::string &host, + int port, + int socket_flags, + SocketOptions socket_options) const { + return detail::create_socket( + host, + std::string(), + port, + address_family_, + socket_flags, + tcp_nodelay_, + std::move(socket_options), + [](socket_t sock, struct addrinfo &ai, bool & /*quit*/) -> 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 std::string &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; + auto se = detail::scope_exit([&]() { is_running_ = false; }); + + { + 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 + +#if defined _WIN32 + // sockets conneced via WASAccept inherit flags NO_HANDLE_INHERIT, + // OVERLAPPED + socket_t sock = WSAAccept(svr_sock_, nullptr, nullptr, nullptr, 0); +#elif defined SOCK_CLOEXEC + socket_t sock = accept4(svr_sock_, nullptr, nullptr, SOCK_CLOEXEC); +#else + socket_t sock = accept(svr_sock_, nullptr, nullptr); +#endif + + 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; + } else if (errno == EINTR || errno == EAGAIN) { + 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, + reinterpret_cast(&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, + reinterpret_cast(&tv), + sizeof(tv)); +#endif + } + { + +#ifdef _WIN32 + auto timeout = static_cast(write_timeout_sec_ * 1000 + + write_timeout_usec_ / 1000); + setsockopt(sock, + SOL_SOCKET, + SO_SNDTIMEO, + reinterpret_cast(&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, + reinterpret_cast(&tv), + sizeof(tv)); +#endif + } + + if (!task_queue->enqueue( + [this, sock]() { process_and_close_socket(sock); })) { + detail::shutdown_socket(sock); + detail::close_socket(sock); + } + } + + task_queue->shutdown(); + } + + 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 + auto 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 = StatusCode::BadRequest_400; + return false; +} + +inline bool Server::dispatch_request(Request &req, + Response &res, + const Handlers &handlers) const { + for (const auto &x : handlers) { + const auto &matcher = x.first; + const auto &handler = x.second; + + if (matcher->match(req)) { + handler(req, res); + return true; + } + } + return false; +} + +inline void Server::apply_ranges(const Request &req, + Response &res, + std::string &content_type, + std::string &boundary) const { + if (req.ranges.size() > 1 && res.status == StatusCode::PartialContent_206) { + auto it = res.headers.find("Content-Type"); + if (it != res.headers.end()) { + content_type = it->second; + res.headers.erase(it); + } + + boundary = detail::make_multipart_data_boundary(); + + res.set_header("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() || res.status != StatusCode::PartialContent_206) { + length = res.content_length_; + } else if (req.ranges.size() == 1) { + auto offset_and_length = detail::get_range_offset_and_length( + req.ranges[0], res.content_length_); + + length = offset_and_length.second; + + auto content_range = detail::make_content_range_header_field( + offset_and_length, res.content_length_); + res.set_header("Content-Range", content_range); + } else { + length = detail::get_multipart_ranges_data_length( + req, boundary, content_type, res.content_length_); + } + 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() || res.status != StatusCode::PartialContent_206) { + ; + } else if (req.ranges.size() == 1) { + auto offset_and_length = + detail::get_range_offset_and_length(req.ranges[0], res.body.size()); + auto offset = offset_and_length.first; + auto length = offset_and_length.second; + + auto content_range = detail::make_content_range_header_field( + offset_and_length, res.body.size()); + res.set_header("Content-Range", content_range); + + assert(offset + length <= res.body.size()); + res.body = res.body.substr(offset, length); + } else { + std::string data; + detail::make_multipart_ranges_data( + req, res, boundary, content_type, res.body.size(), data); + res.body.swap(data); + } + + 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) const { + for (const auto &x : handlers) { + const auto &matcher = x.first; + const auto &handler = x.second; + + if (matcher->match(req)) { + 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"; + res.headers = default_headers_; + +#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 = StatusCode::InternalServerError_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 = StatusCode::UriTooLong_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 = StatusCode::BadRequest_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)); + + strm.get_local_ip_and_port(req.local_addr, req.local_port); + req.set_header("LOCAL_ADDR", req.local_addr); + req.set_header("LOCAL_PORT", std::to_string(req.local_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 = StatusCode::RangeNotSatisfiable_416; + return write_response(strm, close_connection, req, res); + } + } + + if (setup_request) { + setup_request(req); + } + + if (req.get_header_value("Expect") == "100-continue") { + int status = StatusCode::Continue_100; + if (expect_100_continue_handler_) { + status = expect_100_continue_handler_(req, res); + } + switch (status) { + case StatusCode::Continue_100: + case StatusCode::ExpectationFailed_417: + strm.write_format( + "HTTP/1.1 %d %s\r\n\r\n", status, status_message(status)); + break; + default: + return write_response(strm, close_connection, req, res); + } + } + + // Routing + auto 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_) { + auto ep = std::current_exception(); + exception_handler_(req, res, ep); + routed = true; + } else { + res.status = StatusCode::InternalServerError_500; + std::string val; + auto s = e.what(); + for (size_t i = 0; s[i]; i++) { + switch (s[i]) { + case '\r': + val += "\\r"; + break; + case '\n': + val += "\\n"; + break; + default: + val += s[i]; + break; + } + } + res.set_header("EXCEPTION_WHAT", val); + } + } catch (...) { + if (exception_handler_) { + auto ep = std::current_exception(); + exception_handler_(req, res, ep); + routed = true; + } else { + res.status = StatusCode::InternalServerError_500; + res.set_header("EXCEPTION_WHAT", "UNKNOWN"); + } + } +#endif + if (routed) { + if (res.status == -1) { + res.status = req.ranges.empty() ? StatusCode::OK_200 + : StatusCode::PartialContent_206; + } + + if (detail::range_error(req, res)) { + res.body.clear(); + res.content_length_ = 0; + res.content_provider_ = nullptr; + res.status = StatusCode::RangeNotSatisfiable_416; + return write_response(strm, close_connection, req, res); + } + + return write_response_with_content(strm, close_connection, req, res); + } else { + if (res.status == -1) { + res.status = StatusCode::NotFound_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_, + std::string(), + 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_, + ip, + 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) const { + 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) const { + 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 std::regex re("(HTTP/1\\.[01]) (\\d{3})(?: (.*?))?\r?\n"); +#else + const static std::regex re("(HTTP/1\\.[01]) (\\d{3})(?: (.*?))?\r\n"); +#endif + + std::cmatch m; + if (!std::regex_match(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 == StatusCode::Continue_100) { + if (!line_reader.getline()) { + return false; + } // CRLF + if (!line_reader.getline()) { + return false; + } // next response line + + if (!std::regex_match(line_reader.ptr(), m, re)) { + return false; + } + res.version = std::string(m[1]); + res.status = std::stoi(std::string(m[2])); + res.reason = std::string(m[3]); + } + + return true; +} + +inline bool ClientImpl::send(Request &req, Response &res, Error &error) { + std::lock_guard request_mutex_guard(request_mutex_); + auto ret = send_(req, res, error); + if (error == Error::SSLPeerCouldBeClosed_) { + assert(!ret); + ret = send_(req, res, error); + } + return ret; +} + +inline bool ClientImpl::send_(Request &req, Response &res, Error &error) { + { + 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) { + auto 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 ret = false; + auto close_connection = !keep_alive_; + + auto se = detail::scope_exit([&]() { + // 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_); + } + }); + + ret = process_socket(socket_, [&](Stream &strm) { + return handle_request(strm, req, res, close_connection, error); + }); + + 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 (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. + + // This is safe to call because handle_request 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_); + } + + if (300 < res.status && res.status < 400 && follow_location_) { + req = req_save; + ret = redirect(req, res, error); + } + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + if ((res.status == StatusCode::Unauthorized_401 || + res.status == StatusCode::ProxyAuthenticationRequired_407) && + req.authorization_count_ < 5) { + auto is_proxy = res.status == StatusCode::ProxyAuthenticationRequired_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 std::regex re( + R"((?:(https?):)?(?://(?:\[([a-fA-F\d:]+)\]|([^:/?#]+))(?::(\d+))?)?([^?#]*)(\?[^#]*)?(?:#.*)?)"); + + std::smatch m; + if (!std::regex_match(location, m, re)) { + return false; + } + + auto scheme = is_ssl() ? "https" : "http"; + + auto next_scheme = m[1].str(); + auto next_host = m[2].str(); + if (next_host.empty()) { + next_host = m[3].str(); + } + auto port_str = m[4].str(); + auto next_path = m[5].str(); + auto next_query = m[6].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 = "/"; + } + + auto path = detail::decode_url(next_path, true) + next_query; + + if (next_scheme == scheme && next_host == host_ && next_port == port_) { + return detail::redirect(*this, req, res, path, location, error); + } else { + if (next_scheme == "https") { +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + SSLClient cli(next_host, next_port); + cli.copy_settings(*this); + if (ca_cert_store_) { + cli.set_ca_cert_store(ca_cert_store_); + } + return detail::redirect(cli, req, res, path, location, error); +#else + return false; +#endif + } else { + ClientImpl cli(next_host, next_port); + cli.copy_settings(*this); + return detail::redirect(cli, req, res, path, location, error); + } + } +} + +inline bool ClientImpl::write_content_with_provider(Stream &strm, + const Request &req, + Error &error) const { + auto is_shutting_down = []() { return false; }; + + if (req.is_chunked_content_provider_) { + // TODO: Brotli support + 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); + } +} + +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.set_header("Connection", "close"); + } + } + + if (!req.has_header("Host")) { + if (is_ssl()) { + if (port_ == 443) { + req.set_header("Host", host_); + } else { + req.set_header("Host", host_and_port_); + } + } else { + if (port_ == 80) { + req.set_header("Host", host_); + } else { + req.set_header("Host", host_and_port_); + } + } + } + + if (!req.has_header("Accept")) { + req.set_header("Accept", "*/*"); + } + +#ifndef CPPHTTPLIB_NO_DEFAULT_USER_AGENT + if (!req.has_header("User-Agent")) { + auto agent = std::string("cpp-httplib/") + CPPHTTPLIB_VERSION; + req.set_header("User-Agent", agent); + } +#endif + + 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.set_header("Content-Length", length); + } + } + } else { + if (req.method == "POST" || req.method == "PUT" || + req.method == "PATCH") { + req.set_header("Content-Length", "0"); + } + } + } else { + if (!req.has_header("Content-Type")) { + req.set_header("Content-Type", "text/plain"); + } + + if (!req.has_header("Content-Length")) { + auto length = std::to_string(req.body.size()); + req.set_header("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()); + + header_writer_(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 *body, + size_t content_length, + ContentProvider content_provider, + ContentProviderWithoutLength content_provider_without_length, + const std::string &content_type, + Error &error) { + if (!content_type.empty()) { + req.set_header("Content-Type", content_type); + } + +#ifdef CPPHTTPLIB_ZLIB_SUPPORT + if (compress_) { + req.set_header("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 *compressed_data, size_t compressed_data_len) { + req.body.append(compressed_data, compressed_data_len); + return true; + }); + + if (ret) { + offset += data_len; + } else { + ok = false; + } + } + return ok; + }; + + 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.set_header("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 std::string &method, + const std::string &path, + const Headers &headers, + const char *body, + size_t content_length, + ContentProvider content_provider, + ContentProviderWithoutLength content_provider_without_length, + const std::string &content_type, + Progress progress) { + Request req; + req.method = method; + req.headers = headers; + req.path = path; + req.progress = progress; + + auto error = Error::Success; + + auto res = + send_with_content_provider(req, + 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; + } + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + if (is_ssl()) { + auto is_proxy_enabled = !proxy_host_.empty() && proxy_port_ != -1; + if (!is_proxy_enabled) { + char buf[1]; + if (SSL_peek(socket_.ssl, buf, 1) == 0 && + SSL_get_error(socket_.ssl, 0) == SSL_ERROR_ZERO_RETURN) { + error = Error::SSLPeerCouldBeClosed_; + return false; + } + } + } +#endif + + // 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 != StatusCode::NoContent_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; + } + } + + // Log + if (logger_) { + logger_(req, res); + } + + return true; +} + +inline ContentProviderWithoutLength ClientImpl::get_multipart_content_provider( + const std::string &boundary, + const MultipartFormDataItems &items, + const MultipartFormDataProviderItems &provider_items) const { + size_t cur_item = 0; + size_t cur_start = 0; + // cur_item and cur_start are copied to within the std::function and maintain + // state between successive calls + return [&, cur_item, cur_start](size_t offset, + DataSink &sink) mutable -> bool { + if (!offset && !items.empty()) { + sink.os << detail::serialize_multipart_formdata(items, boundary, false); + return true; + } else if (cur_item < provider_items.size()) { + if (!cur_start) { + const auto &begin = detail::serialize_multipart_formdata_item_begin( + provider_items[cur_item], boundary); + offset += begin.size(); + cur_start = offset; + sink.os << begin; + } + + DataSink cur_sink; + auto has_data = true; + cur_sink.write = sink.write; + cur_sink.done = [&]() { has_data = false; }; + + if (!provider_items[cur_item].provider(offset - cur_start, cur_sink)) { + return false; + } + + if (!has_data) { + sink.os << detail::serialize_multipart_formdata_item_end(); + cur_item++; + cur_start = 0; + } + return true; + } else { + sink.os << detail::serialize_multipart_formdata_finish(boundary); + sink.done(); + 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 std::string &path) { + return Get(path, Headers(), Progress()); +} + +inline Result ClientImpl::Get(const std::string &path, Progress progress) { + return Get(path, Headers(), std::move(progress)); +} + +inline Result ClientImpl::Get(const std::string &path, const Headers &headers) { + return Get(path, headers, Progress()); +} + +inline Result ClientImpl::Get(const std::string &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 std::string &path, + ContentReceiver content_receiver) { + return Get(path, Headers(), nullptr, std::move(content_receiver), nullptr); +} + +inline Result ClientImpl::Get(const std::string &path, + ContentReceiver content_receiver, + Progress progress) { + return Get(path, + Headers(), + nullptr, + std::move(content_receiver), + std::move(progress)); +} + +inline Result ClientImpl::Get(const std::string &path, + const Headers &headers, + ContentReceiver content_receiver) { + return Get(path, headers, nullptr, std::move(content_receiver), nullptr); +} + +inline Result ClientImpl::Get(const std::string &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 std::string &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 std::string &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 std::string &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 std::string &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 std::string &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, headers, std::move(progress)); +} + +inline Result ClientImpl::Get(const std::string &path, + const Params ¶ms, + const Headers &headers, + ContentReceiver content_receiver, + Progress progress) { + return Get(path, + params, + headers, + nullptr, + std::move(content_receiver), + std::move(progress)); +} + +inline Result ClientImpl::Get(const std::string &path, + const Params ¶ms, + const Headers &headers, + ResponseHandler response_handler, + ContentReceiver content_receiver, + Progress progress) { + if (params.empty()) { + return Get(path, + headers, + std::move(response_handler), + std::move(content_receiver), + std::move(progress)); + } + + std::string path_with_query = append_query_params(path, params); + return Get(path_with_query, + headers, + std::move(response_handler), + std::move(content_receiver), + std::move(progress)); +} + +inline Result ClientImpl::Head(const std::string &path) { + return Head(path, Headers()); +} + +inline Result ClientImpl::Head(const std::string &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 std::string &path) { + return Post(path, std::string(), std::string()); +} + +inline Result ClientImpl::Post(const std::string &path, + const Headers &headers) { + return Post(path, headers, nullptr, 0, std::string()); +} + +inline Result ClientImpl::Post(const std::string &path, + const char *body, + size_t content_length, + const std::string &content_type) { + return Post(path, Headers(), body, content_length, content_type, nullptr); +} + +inline Result ClientImpl::Post(const std::string &path, + const Headers &headers, + const char *body, + size_t content_length, + const std::string &content_type) { + return send_with_content_provider("POST", + path, + headers, + body, + content_length, + nullptr, + nullptr, + content_type, + nullptr); +} + +inline Result ClientImpl::Post(const std::string &path, + const Headers &headers, + const char *body, + size_t content_length, + const std::string &content_type, + Progress progress) { + return send_with_content_provider("POST", + path, + headers, + body, + content_length, + nullptr, + nullptr, + content_type, + progress); +} + +inline Result ClientImpl::Post(const std::string &path, + const std::string &body, + const std::string &content_type) { + return Post(path, Headers(), body, content_type); +} + +inline Result ClientImpl::Post(const std::string &path, + const std::string &body, + const std::string &content_type, + Progress progress) { + return Post(path, Headers(), body, content_type, progress); +} + +inline Result ClientImpl::Post(const std::string &path, + const Headers &headers, + const std::string &body, + const std::string &content_type) { + return send_with_content_provider("POST", + path, + headers, + body.data(), + body.size(), + nullptr, + nullptr, + content_type, + nullptr); +} + +inline Result ClientImpl::Post(const std::string &path, + const Headers &headers, + const std::string &body, + const std::string &content_type, + Progress progress) { + return send_with_content_provider("POST", + path, + headers, + body.data(), + body.size(), + nullptr, + nullptr, + content_type, + progress); +} + +inline Result ClientImpl::Post(const std::string &path, const Params ¶ms) { + return Post(path, Headers(), params); +} + +inline Result ClientImpl::Post(const std::string &path, + size_t content_length, + ContentProvider content_provider, + const std::string &content_type) { + return Post(path, + Headers(), + content_length, + std::move(content_provider), + content_type); +} + +inline Result ClientImpl::Post(const std::string &path, + ContentProviderWithoutLength content_provider, + const std::string &content_type) { + return Post(path, Headers(), std::move(content_provider), content_type); +} + +inline Result ClientImpl::Post(const std::string &path, + const Headers &headers, + size_t content_length, + ContentProvider content_provider, + const std::string &content_type) { + return send_with_content_provider("POST", + path, + headers, + nullptr, + content_length, + std::move(content_provider), + nullptr, + content_type, + nullptr); +} + +inline Result ClientImpl::Post(const std::string &path, + const Headers &headers, + ContentProviderWithoutLength content_provider, + const std::string &content_type) { + return send_with_content_provider("POST", + path, + headers, + nullptr, + 0, + nullptr, + std::move(content_provider), + content_type, + nullptr); +} + +inline Result ClientImpl::Post(const std::string &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 std::string &path, + const Headers &headers, + const Params ¶ms, + Progress progress) { + auto query = detail::params_to_query_str(params); + return Post( + path, headers, query, "application/x-www-form-urlencoded", progress); +} + +inline Result ClientImpl::Post(const std::string &path, + const MultipartFormDataItems &items) { + return Post(path, Headers(), items); +} + +inline Result ClientImpl::Post(const std::string &path, + const Headers &headers, + const MultipartFormDataItems &items) { + const auto &boundary = detail::make_multipart_data_boundary(); + const auto &content_type = + detail::serialize_multipart_formdata_get_content_type(boundary); + const auto &body = detail::serialize_multipart_formdata(items, boundary); + return Post(path, headers, body, content_type); +} + +inline Result ClientImpl::Post(const std::string &path, + const Headers &headers, + const MultipartFormDataItems &items, + const std::string &boundary) { + if (!detail::is_multipart_boundary_chars_valid(boundary)) { + return Result{nullptr, Error::UnsupportedMultipartBoundaryChars}; + } + + const auto &content_type = + detail::serialize_multipart_formdata_get_content_type(boundary); + const auto &body = detail::serialize_multipart_formdata(items, boundary); + return Post(path, headers, body, content_type); +} + +inline Result ClientImpl::Post( + const std::string &path, + const Headers &headers, + const MultipartFormDataItems &items, + const MultipartFormDataProviderItems &provider_items) { + const auto &boundary = detail::make_multipart_data_boundary(); + const auto &content_type = + detail::serialize_multipart_formdata_get_content_type(boundary); + return send_with_content_provider( + "POST", + path, + headers, + nullptr, + 0, + nullptr, + get_multipart_content_provider(boundary, items, provider_items), + content_type, + nullptr); +} + +inline Result ClientImpl::Put(const std::string &path) { + return Put(path, std::string(), std::string()); +} + +inline Result ClientImpl::Put(const std::string &path, + const char *body, + size_t content_length, + const std::string &content_type) { + return Put(path, Headers(), body, content_length, content_type); +} + +inline Result ClientImpl::Put(const std::string &path, + const Headers &headers, + const char *body, + size_t content_length, + const std::string &content_type) { + return send_with_content_provider("PUT", + path, + headers, + body, + content_length, + nullptr, + nullptr, + content_type, + nullptr); +} + +inline Result ClientImpl::Put(const std::string &path, + const Headers &headers, + const char *body, + size_t content_length, + const std::string &content_type, + Progress progress) { + return send_with_content_provider("PUT", + path, + headers, + body, + content_length, + nullptr, + nullptr, + content_type, + progress); +} + +inline Result ClientImpl::Put(const std::string &path, + const std::string &body, + const std::string &content_type) { + return Put(path, Headers(), body, content_type); +} + +inline Result ClientImpl::Put(const std::string &path, + const std::string &body, + const std::string &content_type, + Progress progress) { + return Put(path, Headers(), body, content_type, progress); +} + +inline Result ClientImpl::Put(const std::string &path, + const Headers &headers, + const std::string &body, + const std::string &content_type) { + return send_with_content_provider("PUT", + path, + headers, + body.data(), + body.size(), + nullptr, + nullptr, + content_type, + nullptr); +} + +inline Result ClientImpl::Put(const std::string &path, + const Headers &headers, + const std::string &body, + const std::string &content_type, + Progress progress) { + return send_with_content_provider("PUT", + path, + headers, + body.data(), + body.size(), + nullptr, + nullptr, + content_type, + progress); +} + +inline Result ClientImpl::Put(const std::string &path, + size_t content_length, + ContentProvider content_provider, + const std::string &content_type) { + return Put(path, + Headers(), + content_length, + std::move(content_provider), + content_type); +} + +inline Result ClientImpl::Put(const std::string &path, + ContentProviderWithoutLength content_provider, + const std::string &content_type) { + return Put(path, Headers(), std::move(content_provider), content_type); +} + +inline Result ClientImpl::Put(const std::string &path, + const Headers &headers, + size_t content_length, + ContentProvider content_provider, + const std::string &content_type) { + return send_with_content_provider("PUT", + path, + headers, + nullptr, + content_length, + std::move(content_provider), + nullptr, + content_type, + nullptr); +} + +inline Result ClientImpl::Put(const std::string &path, + const Headers &headers, + ContentProviderWithoutLength content_provider, + const std::string &content_type) { + return send_with_content_provider("PUT", + path, + headers, + nullptr, + 0, + nullptr, + std::move(content_provider), + content_type, + nullptr); +} + +inline Result ClientImpl::Put(const std::string &path, const Params ¶ms) { + return Put(path, Headers(), params); +} + +inline Result ClientImpl::Put(const std::string &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::Put(const std::string &path, + const Headers &headers, + const Params ¶ms, + Progress progress) { + auto query = detail::params_to_query_str(params); + return Put( + path, headers, query, "application/x-www-form-urlencoded", progress); +} + +inline Result ClientImpl::Put(const std::string &path, + const MultipartFormDataItems &items) { + return Put(path, Headers(), items); +} + +inline Result ClientImpl::Put(const std::string &path, + const Headers &headers, + const MultipartFormDataItems &items) { + const auto &boundary = detail::make_multipart_data_boundary(); + const auto &content_type = + detail::serialize_multipart_formdata_get_content_type(boundary); + const auto &body = detail::serialize_multipart_formdata(items, boundary); + return Put(path, headers, body, content_type); +} + +inline Result ClientImpl::Put(const std::string &path, + const Headers &headers, + const MultipartFormDataItems &items, + const std::string &boundary) { + if (!detail::is_multipart_boundary_chars_valid(boundary)) { + return Result{nullptr, Error::UnsupportedMultipartBoundaryChars}; + } + + const auto &content_type = + detail::serialize_multipart_formdata_get_content_type(boundary); + const auto &body = detail::serialize_multipart_formdata(items, boundary); + return Put(path, headers, body, content_type); +} + +inline Result ClientImpl::Put( + const std::string &path, + const Headers &headers, + const MultipartFormDataItems &items, + const MultipartFormDataProviderItems &provider_items) { + const auto &boundary = detail::make_multipart_data_boundary(); + const auto &content_type = + detail::serialize_multipart_formdata_get_content_type(boundary); + return send_with_content_provider( + "PUT", + path, + headers, + nullptr, + 0, + nullptr, + get_multipart_content_provider(boundary, items, provider_items), + content_type, + nullptr); +} +inline Result ClientImpl::Patch(const std::string &path) { + return Patch(path, std::string(), std::string()); +} + +inline Result ClientImpl::Patch(const std::string &path, + const char *body, + size_t content_length, + const std::string &content_type) { + return Patch(path, Headers(), body, content_length, content_type); +} + +inline Result ClientImpl::Patch(const std::string &path, + const char *body, + size_t content_length, + const std::string &content_type, + Progress progress) { + return Patch(path, Headers(), body, content_length, content_type, progress); +} + +inline Result ClientImpl::Patch(const std::string &path, + const Headers &headers, + const char *body, + size_t content_length, + const std::string &content_type) { + return Patch(path, headers, body, content_length, content_type, nullptr); +} + +inline Result ClientImpl::Patch(const std::string &path, + const Headers &headers, + const char *body, + size_t content_length, + const std::string &content_type, + Progress progress) { + return send_with_content_provider("PATCH", + path, + headers, + body, + content_length, + nullptr, + nullptr, + content_type, + progress); +} + +inline Result ClientImpl::Patch(const std::string &path, + const std::string &body, + const std::string &content_type) { + return Patch(path, Headers(), body, content_type); +} + +inline Result ClientImpl::Patch(const std::string &path, + const std::string &body, + const std::string &content_type, + Progress progress) { + return Patch(path, Headers(), body, content_type, progress); +} + +inline Result ClientImpl::Patch(const std::string &path, + const Headers &headers, + const std::string &body, + const std::string &content_type) { + return Patch(path, headers, body, content_type, nullptr); +} + +inline Result ClientImpl::Patch(const std::string &path, + const Headers &headers, + const std::string &body, + const std::string &content_type, + Progress progress) { + return send_with_content_provider("PATCH", + path, + headers, + body.data(), + body.size(), + nullptr, + nullptr, + content_type, + progress); +} + +inline Result ClientImpl::Patch(const std::string &path, + size_t content_length, + ContentProvider content_provider, + const std::string &content_type) { + return Patch(path, + Headers(), + content_length, + std::move(content_provider), + content_type); +} + +inline Result ClientImpl::Patch(const std::string &path, + ContentProviderWithoutLength content_provider, + const std::string &content_type) { + return Patch(path, Headers(), std::move(content_provider), content_type); +} + +inline Result ClientImpl::Patch(const std::string &path, + const Headers &headers, + size_t content_length, + ContentProvider content_provider, + const std::string &content_type) { + return send_with_content_provider("PATCH", + path, + headers, + nullptr, + content_length, + std::move(content_provider), + nullptr, + content_type, + nullptr); +} + +inline Result ClientImpl::Patch(const std::string &path, + const Headers &headers, + ContentProviderWithoutLength content_provider, + const std::string &content_type) { + return send_with_content_provider("PATCH", + path, + headers, + nullptr, + 0, + nullptr, + std::move(content_provider), + content_type, + nullptr); +} + +inline Result ClientImpl::Delete(const std::string &path) { + return Delete(path, Headers(), std::string(), std::string()); +} + +inline Result ClientImpl::Delete(const std::string &path, + const Headers &headers) { + return Delete(path, headers, std::string(), std::string()); +} + +inline Result ClientImpl::Delete(const std::string &path, + const char *body, + size_t content_length, + const std::string &content_type) { + return Delete(path, Headers(), body, content_length, content_type); +} + +inline Result ClientImpl::Delete(const std::string &path, + const char *body, + size_t content_length, + const std::string &content_type, + Progress progress) { + return Delete(path, Headers(), body, content_length, content_type, progress); +} + +inline Result ClientImpl::Delete(const std::string &path, + const Headers &headers, + const char *body, + size_t content_length, + const std::string &content_type) { + return Delete(path, headers, body, content_length, content_type, nullptr); +} + +inline Result ClientImpl::Delete(const std::string &path, + const Headers &headers, + const char *body, + size_t content_length, + const std::string &content_type, + Progress progress) { + Request req; + req.method = "DELETE"; + req.headers = headers; + req.path = path; + req.progress = progress; + + if (!content_type.empty()) { + req.set_header("Content-Type", content_type); + } + req.body.assign(body, content_length); + + return send_(std::move(req)); +} + +inline Result ClientImpl::Delete(const std::string &path, + const std::string &body, + const std::string &content_type) { + return Delete(path, Headers(), body.data(), body.size(), content_type); +} + +inline Result ClientImpl::Delete(const std::string &path, + const std::string &body, + const std::string &content_type, + Progress progress) { + return Delete( + path, Headers(), body.data(), body.size(), content_type, progress); +} + +inline Result ClientImpl::Delete(const std::string &path, + const Headers &headers, + const std::string &body, + const std::string &content_type) { + return Delete(path, headers, body.data(), body.size(), content_type); +} + +inline Result ClientImpl::Delete(const std::string &path, + const Headers &headers, + const std::string &body, + const std::string &content_type, + Progress progress) { + return Delete( + path, headers, body.data(), body.size(), content_type, progress); +} + +inline Result ClientImpl::Options(const std::string &path) { + return Options(path, Headers()); +} + +inline Result ClientImpl::Options(const std::string &path, + const Headers &headers) { + Request req; + req.method = "OPTIONS"; + req.headers = headers; + req.path = path; + + return send_(std::move(req)); +} + +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, still holding the mutex, we can shut everything down ourselves + shutdown_ssl(socket_, true); + shutdown_socket(socket_); + close_socket(socket_); +} + +inline std::string ClientImpl::host() const { + return host_; +} + +inline int ClientImpl::port() const { + return port_; +} + +inline size_t ClientImpl::is_socket_open() const { + std::lock_guard guard(socket_mutex_); + return socket_.is_open(); +} + +inline socket_t ClientImpl::socket() const { + return socket_.sock; +} + +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 std::string &username, + const std::string &password) { + basic_auth_username_ = username; + basic_auth_password_ = password; +} + +inline void ClientImpl::set_bearer_token_auth(const std::string &token) { + bearer_token_auth_token_ = token; +} + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT +inline void ClientImpl::set_digest_auth(const std::string &username, + const std::string &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( + 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_header_writer( + std::function const &writer) { + header_writer_ = writer; +} + +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 std::string &intf) { + interface_ = intf; +} + +inline void ClientImpl::set_proxy(const std::string &host, int port) { + proxy_host_ = host; + proxy_port_ = port; +} + +inline void ClientImpl::set_proxy_basic_auth(const std::string &username, + const std::string &password) { + proxy_basic_auth_username_ = username; + proxy_basic_auth_password_ = password; +} + +inline void ClientImpl::set_proxy_bearer_token_auth(const std::string &token) { + proxy_bearer_token_auth_token_ = token; +} + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT +inline void ClientImpl::set_proxy_digest_auth(const std::string &username, + const std::string &password) { + proxy_digest_auth_username_ = username; + proxy_digest_auth_password_ = password; +} + +inline void ClientImpl::set_ca_cert_path(const std::string &ca_cert_file_path, + const std::string &ca_cert_dir_path) { + ca_cert_file_path_ = ca_cert_file_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; + } +} + +inline X509_STORE *ClientImpl::create_ca_cert_store(const char *ca_cert, + std::size_t size) const { + auto mem = BIO_new_mem_buf(ca_cert, static_cast(size)); + if (!mem) { + return nullptr; + } + + auto inf = PEM_X509_INFO_read_bio(mem, nullptr, nullptr, nullptr); + if (!inf) { + BIO_free_all(mem); + return nullptr; + } + + auto cts = X509_STORE_new(); + if (cts) { + for (auto i = 0; i < static_cast(sk_X509_INFO_num(inf)); i++) { + auto itmp = sk_X509_INFO_value(inf, i); + if (!itmp) { + continue; + } + + if (itmp->x509) { + X509_STORE_add_cert(cts, itmp->x509); + } + if (itmp->crl) { + X509_STORE_add_crl(cts, itmp->crl); + } + } + } + + sk_X509_INFO_pop_free(inf, X509_INFO_free); + BIO_free_all(mem); + return cts; +} + +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, + socket_t sock, + 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) { +#ifdef _WIN32 + SSL_shutdown(ssl); +#else + timeval tv; + tv.tv_sec = 1; + tv.tv_usec = 0; + setsockopt(sock, + SOL_SOCKET, + SO_RCVTIMEO, + reinterpret_cast(&tv), + sizeof(tv)); + + auto ret = SSL_shutdown(ssl); + while (ret == 0) { + std::this_thread::sleep_for(std::chrono::milliseconds(100)); + ret = SSL_shutdown(ssl); + } +#endif + } + + 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) { + auto 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); +} + +class SSLInit { + public: + SSLInit() { + OPENSSL_init_ssl( + OPENSSL_INIT_LOAD_SSL_STRINGS | OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL); + } +}; + +// 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() = default; + +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 select_write(sock_, write_timeout_sec_, write_timeout_usec_) > 0 && + is_socket_alive(sock_); +} + +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); + auto 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 handle_size = static_cast( + std::min(size, (std::numeric_limits::max)())); + + auto ret = SSL_write(ssl_, ptr, static_cast(handle_size)); + if (ret < 0) { + auto err = SSL_get_error(ssl_, ret); + auto 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(handle_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 void SSLSocketStream::get_local_ip_and_port(std::string &ip, + int &port) const { + detail::get_local_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, + const char *private_key_password) { + 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_2_VERSION); + + if (private_key_password != nullptr && (private_key_password[0] != '\0')) { + SSL_CTX_set_default_passwd_cb_userdata( + ctx_, + reinterpret_cast(const_cast(private_key_password))); + } + + 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_2_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 void SSLServer::update_certs(X509 *cert, + EVP_PKEY *private_key, + X509_STORE *client_ca_cert_store) { + + std::lock_guard guard(ctx_mutex_); + + SSL_CTX_use_certificate(ctx_, cert); + SSL_CTX_use_PrivateKey(ctx_, private_key); + + if (client_ca_cert_store != nullptr) { + SSL_CTX_set_cert_store(ctx_, client_ca_cert_store); + } +} + +inline bool SSLServer::process_and_close_socket(socket_t sock) { + auto ssl = detail::ssl_new( + sock, + ctx_, + ctx_mutex_, + [&](SSL *ssl2) { + return detail::ssl_connect_or_accept_nonblocking( + sock, ssl2, SSL_accept, read_timeout_sec_, read_timeout_usec_); + }, + [](SSL * /*ssl2*/) { return true; }); + + auto 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, sock, 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, + const std::string &private_key_password) + : 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(b, e); + }); + + if (!client_cert_path.empty() && !client_key_path.empty()) { + if (!private_key_password.empty()) { + SSL_CTX_set_default_passwd_cb_userdata( + ctx_, + reinterpret_cast( + const_cast(private_key_password.c_str()))); + } + + 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, + const std::string &private_key_password) + : 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(b, e); + }); + + if (client_cert != nullptr && client_key != nullptr) { + if (!private_key_password.empty()) { + SSL_CTX_set_default_passwd_cb_userdata( + ctx_, + reinterpret_cast( + const_cast(private_key_password.c_str()))); + } + + 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 void SSLClient::load_ca_cert_store(const char *ca_cert, + std::size_t size) { + set_ca_cert_store(ClientImpl::create_ca_cert_store(ca_cert, size)); +} + +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 proxy_res; + 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, proxy_res, 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 (proxy_res.status == StatusCode::ProxyAuthenticationRequired_407) { + if (!proxy_digest_auth_username_.empty() && + !proxy_digest_auth_password_.empty()) { + std::map auth; + if (detail::parse_www_authenticate(proxy_res, auth, true)) { + proxy_res = Response(); + 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, proxy_res, 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 status code is not 200, proxy request is failed. + // Set error to ProxyConnection and return proxy response + // as the response of the request + if (proxy_res.status != StatusCode::OK_200) { + error = Error::ProxyConnection; + res = std::move(proxy_res); + // 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); + return false; + } + + return true; +} + +inline bool SSLClient::load_certs() { + auto 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 { + auto loaded = false; +#ifdef _WIN32 + loaded = + detail::load_system_certs_on_windows(SSL_CTX_get_cert_store(ctx_)); +#elif defined(CPPHTTPLIB_USE_CERTS_FROM_MACOSX_KEYCHAIN) && defined(__APPLE__) +#if TARGET_OS_OSX + loaded = detail::load_system_certs_on_macos(SSL_CTX_get_cert_store(ctx_)); +#endif // TARGET_OS_OSX +#endif // _WIN32 + if (!loaded) { + SSL_CTX_set_default_verify_paths(ctx_); + } + } + }); + + return ret; +} + +inline bool SSLClient::initialize_ssl(Socket &socket, Error &error) { + auto ssl = detail::ssl_new( + socket.sock, + ctx_, + ctx_mutex_, + [&](SSL *ssl2) { + if (server_certificate_verification_) { + if (!load_certs()) { + error = Error::SSLLoadingCerts; + return false; + } + SSL_set_verify(ssl2, SSL_VERIFY_NONE, nullptr); + } + + if (!detail::ssl_connect_or_accept_nonblocking( + socket.sock, + ssl2, + SSL_connect, + connection_timeout_sec_, + connection_timeout_usec_)) { + error = Error::SSLConnection; + return false; + } + + if (server_certificate_verification_) { + verify_result_ = SSL_get_verify_result(ssl2); + + if (verify_result_ != X509_V_OK) { + error = Error::SSLServerVerification; + return false; + } + + auto server_cert = SSL_get1_peer_certificate(ssl2); + + 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 *ssl2) { +#if defined(OPENSSL_IS_BORINGSSL) + SSL_set_tlsext_host_name(ssl2, host_.c_str()); +#else + // NOTE: Direct call instead of using the OpenSSL macro to suppress + // -Wold-style-cast warning + SSL_ctrl(ssl2, + SSL_CTRL_SET_TLSEXT_HOSTNAME, + TLSEXT_NAMETYPE_host_name, + static_cast(const_cast(host_.c_str()))); +#endif + 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, socket.sock, 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_matched = 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 = + reinterpret_cast(ASN1_STRING_get0_data(val->d.ia5)); + auto name_len = static_cast(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_matched = true; + } + break; + } + } + } + + if (dsn_matched || ip_matched) { + ret = true; + } + } + + GENERAL_NAMES_free(const_cast( + reinterpret_cast(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(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 std::regex re( + R"((?:([a-z]+):\/\/)?(?:\[([a-fA-F\d:]+)\]|([^:/?#]+))(?::(\d+))?)"); + + std::smatch m; + if (std::regex_match(scheme_host_port, m, re)) { + auto scheme = m[1].str(); + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + if (!scheme.empty() && (scheme != "http" && scheme != "https")) { +#else + if (!scheme.empty() && scheme != "http") { +#endif +#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, port, client_cert_path, client_key_path); + is_ssl_ = is_ssl; +#endif + } else { + cli_ = detail::make_unique( + host, port, client_cert_path, client_key_path); + } + } else { + // NOTE: Update TEST(UniversalClientImplTest, Ipv6LiteralAddress) + // if port param below changes. + cli_ = detail::make_unique( + scheme_host_port, 80, client_cert_path, client_key_path); + } +} // namespace detail + +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() = default; + +inline bool Client::is_valid() const { + return cli_ != nullptr && cli_->is_valid(); +} + +inline Result Client::Get(const std::string &path) { + return cli_->Get(path); +} +inline Result Client::Get(const std::string &path, const Headers &headers) { + return cli_->Get(path, headers); +} +inline Result Client::Get(const std::string &path, Progress progress) { + return cli_->Get(path, std::move(progress)); +} +inline Result Client::Get(const std::string &path, + const Headers &headers, + Progress progress) { + return cli_->Get(path, headers, std::move(progress)); +} +inline Result Client::Get(const std::string &path, + ContentReceiver content_receiver) { + return cli_->Get(path, std::move(content_receiver)); +} +inline Result Client::Get(const std::string &path, + const Headers &headers, + ContentReceiver content_receiver) { + return cli_->Get(path, headers, std::move(content_receiver)); +} +inline Result Client::Get(const std::string &path, + ContentReceiver content_receiver, + Progress progress) { + return cli_->Get(path, std::move(content_receiver), std::move(progress)); +} +inline Result Client::Get(const std::string &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 std::string &path, + ResponseHandler response_handler, + ContentReceiver content_receiver) { + return cli_->Get( + path, std::move(response_handler), std::move(content_receiver)); +} +inline Result Client::Get(const std::string &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 std::string &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 std::string &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 std::string &path, + const Params ¶ms, + const Headers &headers, + Progress progress) { + return cli_->Get(path, params, headers, std::move(progress)); +} +inline Result Client::Get(const std::string &path, + const Params ¶ms, + const Headers &headers, + ContentReceiver content_receiver, + Progress progress) { + return cli_->Get( + path, params, headers, std::move(content_receiver), std::move(progress)); +} +inline Result Client::Get(const std::string &path, + const Params ¶ms, + const Headers &headers, + ResponseHandler response_handler, + ContentReceiver content_receiver, + Progress progress) { + return cli_->Get(path, + params, + headers, + std::move(response_handler), + std::move(content_receiver), + std::move(progress)); +} + +inline Result Client::Head(const std::string &path) { + return cli_->Head(path); +} +inline Result Client::Head(const std::string &path, const Headers &headers) { + return cli_->Head(path, headers); +} + +inline Result Client::Post(const std::string &path) { + return cli_->Post(path); +} +inline Result Client::Post(const std::string &path, const Headers &headers) { + return cli_->Post(path, headers); +} +inline Result Client::Post(const std::string &path, + const char *body, + size_t content_length, + const std::string &content_type) { + return cli_->Post(path, body, content_length, content_type); +} +inline Result Client::Post(const std::string &path, + const Headers &headers, + const char *body, + size_t content_length, + const std::string &content_type) { + return cli_->Post(path, headers, body, content_length, content_type); +} +inline Result Client::Post(const std::string &path, + const Headers &headers, + const char *body, + size_t content_length, + const std::string &content_type, + Progress progress) { + return cli_->Post( + path, headers, body, content_length, content_type, progress); +} +inline Result Client::Post(const std::string &path, + const std::string &body, + const std::string &content_type) { + return cli_->Post(path, body, content_type); +} +inline Result Client::Post(const std::string &path, + const std::string &body, + const std::string &content_type, + Progress progress) { + return cli_->Post(path, body, content_type, progress); +} +inline Result Client::Post(const std::string &path, + const Headers &headers, + const std::string &body, + const std::string &content_type) { + return cli_->Post(path, headers, body, content_type); +} +inline Result Client::Post(const std::string &path, + const Headers &headers, + const std::string &body, + const std::string &content_type, + Progress progress) { + return cli_->Post(path, headers, body, content_type, progress); +} +inline Result Client::Post(const std::string &path, + size_t content_length, + ContentProvider content_provider, + const std::string &content_type) { + return cli_->Post( + path, content_length, std::move(content_provider), content_type); +} +inline Result Client::Post(const std::string &path, + ContentProviderWithoutLength content_provider, + const std::string &content_type) { + return cli_->Post(path, std::move(content_provider), content_type); +} +inline Result Client::Post(const std::string &path, + const Headers &headers, + size_t content_length, + ContentProvider content_provider, + const std::string &content_type) { + return cli_->Post( + path, headers, content_length, std::move(content_provider), content_type); +} +inline Result Client::Post(const std::string &path, + const Headers &headers, + ContentProviderWithoutLength content_provider, + const std::string &content_type) { + return cli_->Post(path, headers, std::move(content_provider), content_type); +} +inline Result Client::Post(const std::string &path, const Params ¶ms) { + return cli_->Post(path, params); +} +inline Result Client::Post(const std::string &path, + const Headers &headers, + const Params ¶ms) { + return cli_->Post(path, headers, params); +} +inline Result Client::Post(const std::string &path, + const Headers &headers, + const Params ¶ms, + Progress progress) { + return cli_->Post(path, headers, params, progress); +} +inline Result Client::Post(const std::string &path, + const MultipartFormDataItems &items) { + return cli_->Post(path, items); +} +inline Result Client::Post(const std::string &path, + const Headers &headers, + const MultipartFormDataItems &items) { + return cli_->Post(path, headers, items); +} +inline Result Client::Post(const std::string &path, + const Headers &headers, + const MultipartFormDataItems &items, + const std::string &boundary) { + return cli_->Post(path, headers, items, boundary); +} +inline Result Client::Post( + const std::string &path, + const Headers &headers, + const MultipartFormDataItems &items, + const MultipartFormDataProviderItems &provider_items) { + return cli_->Post(path, headers, items, provider_items); +} +inline Result Client::Put(const std::string &path) { + return cli_->Put(path); +} +inline Result Client::Put(const std::string &path, + const char *body, + size_t content_length, + const std::string &content_type) { + return cli_->Put(path, body, content_length, content_type); +} +inline Result Client::Put(const std::string &path, + const Headers &headers, + const char *body, + size_t content_length, + const std::string &content_type) { + return cli_->Put(path, headers, body, content_length, content_type); +} +inline Result Client::Put(const std::string &path, + const Headers &headers, + const char *body, + size_t content_length, + const std::string &content_type, + Progress progress) { + return cli_->Put(path, headers, body, content_length, content_type, progress); +} +inline Result Client::Put(const std::string &path, + const std::string &body, + const std::string &content_type) { + return cli_->Put(path, body, content_type); +} +inline Result Client::Put(const std::string &path, + const std::string &body, + const std::string &content_type, + Progress progress) { + return cli_->Put(path, body, content_type, progress); +} +inline Result Client::Put(const std::string &path, + const Headers &headers, + const std::string &body, + const std::string &content_type) { + return cli_->Put(path, headers, body, content_type); +} +inline Result Client::Put(const std::string &path, + const Headers &headers, + const std::string &body, + const std::string &content_type, + Progress progress) { + return cli_->Put(path, headers, body, content_type, progress); +} +inline Result Client::Put(const std::string &path, + size_t content_length, + ContentProvider content_provider, + const std::string &content_type) { + return cli_->Put( + path, content_length, std::move(content_provider), content_type); +} +inline Result Client::Put(const std::string &path, + ContentProviderWithoutLength content_provider, + const std::string &content_type) { + return cli_->Put(path, std::move(content_provider), content_type); +} +inline Result Client::Put(const std::string &path, + const Headers &headers, + size_t content_length, + ContentProvider content_provider, + const std::string &content_type) { + return cli_->Put( + path, headers, content_length, std::move(content_provider), content_type); +} +inline Result Client::Put(const std::string &path, + const Headers &headers, + ContentProviderWithoutLength content_provider, + const std::string &content_type) { + return cli_->Put(path, headers, std::move(content_provider), content_type); +} +inline Result Client::Put(const std::string &path, const Params ¶ms) { + return cli_->Put(path, params); +} +inline Result Client::Put(const std::string &path, + const Headers &headers, + const Params ¶ms) { + return cli_->Put(path, headers, params); +} +inline Result Client::Put(const std::string &path, + const Headers &headers, + const Params ¶ms, + Progress progress) { + return cli_->Put(path, headers, params, progress); +} +inline Result Client::Put(const std::string &path, + const MultipartFormDataItems &items) { + return cli_->Put(path, items); +} +inline Result Client::Put(const std::string &path, + const Headers &headers, + const MultipartFormDataItems &items) { + return cli_->Put(path, headers, items); +} +inline Result Client::Put(const std::string &path, + const Headers &headers, + const MultipartFormDataItems &items, + const std::string &boundary) { + return cli_->Put(path, headers, items, boundary); +} +inline Result Client::Put( + const std::string &path, + const Headers &headers, + const MultipartFormDataItems &items, + const MultipartFormDataProviderItems &provider_items) { + return cli_->Put(path, headers, items, provider_items); +} +inline Result Client::Patch(const std::string &path) { + return cli_->Patch(path); +} +inline Result Client::Patch(const std::string &path, + const char *body, + size_t content_length, + const std::string &content_type) { + return cli_->Patch(path, body, content_length, content_type); +} +inline Result Client::Patch(const std::string &path, + const char *body, + size_t content_length, + const std::string &content_type, + Progress progress) { + return cli_->Patch(path, body, content_length, content_type, progress); +} +inline Result Client::Patch(const std::string &path, + const Headers &headers, + const char *body, + size_t content_length, + const std::string &content_type) { + return cli_->Patch(path, headers, body, content_length, content_type); +} +inline Result Client::Patch(const std::string &path, + const Headers &headers, + const char *body, + size_t content_length, + const std::string &content_type, + Progress progress) { + return cli_->Patch( + path, headers, body, content_length, content_type, progress); +} +inline Result Client::Patch(const std::string &path, + const std::string &body, + const std::string &content_type) { + return cli_->Patch(path, body, content_type); +} +inline Result Client::Patch(const std::string &path, + const std::string &body, + const std::string &content_type, + Progress progress) { + return cli_->Patch(path, body, content_type, progress); +} +inline Result Client::Patch(const std::string &path, + const Headers &headers, + const std::string &body, + const std::string &content_type) { + return cli_->Patch(path, headers, body, content_type); +} +inline Result Client::Patch(const std::string &path, + const Headers &headers, + const std::string &body, + const std::string &content_type, + Progress progress) { + return cli_->Patch(path, headers, body, content_type, progress); +} +inline Result Client::Patch(const std::string &path, + size_t content_length, + ContentProvider content_provider, + const std::string &content_type) { + return cli_->Patch( + path, content_length, std::move(content_provider), content_type); +} +inline Result Client::Patch(const std::string &path, + ContentProviderWithoutLength content_provider, + const std::string &content_type) { + return cli_->Patch(path, std::move(content_provider), content_type); +} +inline Result Client::Patch(const std::string &path, + const Headers &headers, + size_t content_length, + ContentProvider content_provider, + const std::string &content_type) { + return cli_->Patch( + path, headers, content_length, std::move(content_provider), content_type); +} +inline Result Client::Patch(const std::string &path, + const Headers &headers, + ContentProviderWithoutLength content_provider, + const std::string &content_type) { + return cli_->Patch(path, headers, std::move(content_provider), content_type); +} +inline Result Client::Delete(const std::string &path) { + return cli_->Delete(path); +} +inline Result Client::Delete(const std::string &path, const Headers &headers) { + return cli_->Delete(path, headers); +} +inline Result Client::Delete(const std::string &path, + const char *body, + size_t content_length, + const std::string &content_type) { + return cli_->Delete(path, body, content_length, content_type); +} +inline Result Client::Delete(const std::string &path, + const char *body, + size_t content_length, + const std::string &content_type, + Progress progress) { + return cli_->Delete(path, body, content_length, content_type, progress); +} +inline Result Client::Delete(const std::string &path, + const Headers &headers, + const char *body, + size_t content_length, + const std::string &content_type) { + return cli_->Delete(path, headers, body, content_length, content_type); +} +inline Result Client::Delete(const std::string &path, + const Headers &headers, + const char *body, + size_t content_length, + const std::string &content_type, + Progress progress) { + return cli_->Delete( + path, headers, body, content_length, content_type, progress); +} +inline Result Client::Delete(const std::string &path, + const std::string &body, + const std::string &content_type) { + return cli_->Delete(path, body, content_type); +} +inline Result Client::Delete(const std::string &path, + const std::string &body, + const std::string &content_type, + Progress progress) { + return cli_->Delete(path, body, content_type, progress); +} +inline Result Client::Delete(const std::string &path, + const Headers &headers, + const std::string &body, + const std::string &content_type) { + return cli_->Delete(path, headers, body, content_type); +} +inline Result Client::Delete(const std::string &path, + const Headers &headers, + const std::string &body, + const std::string &content_type, + Progress progress) { + return cli_->Delete(path, headers, body, content_type, progress); +} +inline Result Client::Options(const std::string &path) { + return cli_->Options(path); +} +inline Result Client::Options(const std::string &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 void Client::stop() { + cli_->stop(); +} + +inline std::string Client::host() const { + return cli_->host(); +} + +inline int Client::port() const { + return cli_->port(); +} + +inline size_t Client::is_socket_open() const { + return cli_->is_socket_open(); +} + +inline socket_t Client::socket() const { + return cli_->socket(); +} + +inline void Client::set_hostname_addr_map( + 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_header_writer( + std::function const &writer) { + cli_->set_header_writer(writer); +} + +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 std::string &username, + const std::string &password) { + cli_->set_basic_auth(username, password); +} +inline void Client::set_bearer_token_auth(const std::string &token) { + cli_->set_bearer_token_auth(token); +} +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT +inline void Client::set_digest_auth(const std::string &username, + const std::string &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 std::string &intf) { + cli_->set_interface(intf); +} + +inline void Client::set_proxy(const std::string &host, int port) { + cli_->set_proxy(host, port); +} +inline void Client::set_proxy_basic_auth(const std::string &username, + const std::string &password) { + cli_->set_proxy_basic_auth(username, password); +} +inline void Client::set_proxy_bearer_token_auth(const std::string &token) { + cli_->set_proxy_bearer_token_auth(token); +} +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT +inline void Client::set_proxy_digest_auth(const std::string &username, + const std::string &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(std::move(logger)); +} + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT +inline void Client::set_ca_cert_path(const std::string &ca_cert_file_path, + const std::string &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 void Client::load_ca_cert_store(const char *ca_cert, std::size_t size) { + set_ca_cert_store(cli_->create_ca_cert_store(ca_cert, size)); +} + +inline long Client::get_openssl_verify_result() const { + if (is_ssl_) { + return static_cast(*cli_).get_openssl_verify_result(); + } + return -1; // NOTE: -1 doesn't match any of X509_V_ERR_??? +} + +inline SSL_CTX *Client::ssl_context() const { + if (is_ssl_) { + return static_cast(*cli_).ssl_context(); + } + return nullptr; +} +#endif + +// ---------------------------------------------------------------------------- + +} // namespace httplib + +#if defined(_WIN32) && defined(CPPHTTPLIB_USE_POLL) +#undef poll +#endif + +#endif // CPPHTTPLIB_HTTPLIB_H \ No newline at end of file diff --git a/example/src/client.cc b/example/src/client.cc index b700d963..a14f1fcf 100644 --- a/example/src/client.cc +++ b/example/src/client.cc @@ -84,6 +84,7 @@ bool Client::SetServerGroupSlotsToMeta(int64_t start_slot, } bool Client::AddServerGroupToMeta(int64_t shard_id, + int64_t leader_id, std::string group_server_addrs) { ClientContext context; eraftkv::ClusterConfigChangeReq req; @@ -101,6 +102,7 @@ bool Client::AddServerGroupToMeta(int64_t shard_id, count++; svr->set_server_status(eraftkv::ServerStatus::Up); } + req.mutable_shard_group()->set_leader_id(leader_id); req.set_change_type(eraftkv::ChangeType::ShardJoin); eraftkv::ClusterConfigChangeResp resp; auto st = this->meta_leader_stub_->ClusterConfigChange(&context, req, &resp); diff --git a/example/src/eraftkv.cc b/example/src/eraftkv.cc index ebc05310..5be8e370 100644 --- a/example/src/eraftkv.cc +++ b/example/src/eraftkv.cc @@ -43,6 +43,7 @@ #include "eraft/raft_server.h" #include "eraftkv_server.h" +#include "httplib.h" DEFINE_int32(svr_id, 0, "server id"); DEFINE_string(kv_db_path, "", "kv rocksdb path"); @@ -50,7 +51,19 @@ DEFINE_string(log_db_path, "", "log rocksdb path"); DEFINE_string(snap_db_path, "", "snapshot db path"); DEFINE_string(peer_addrs, "", "peer address"); DEFINE_string(log_file_path, "", "log file path"); -DEFINE_string(monitor_addrs, "", "monitor address"); +DEFINE_int32(monitor_port, 18080, "monitor port"); + +static void RunHTTPServer(std::atomic* json_stat, + int32_t monitor_port) { + httplib::Server svr; + svr.Get("/collect_stats", + [json_stat](const httplib::Request& req, httplib::Response& res) { + ERaftKvServer::ReportStats(); + res.set_header("Access-Control-Allow-Origin", "*"); + res.set_content(*(*json_stat), "application/json"); + }); + svr.listen("0.0.0.0", monitor_port); +} /** * @brief @@ -74,9 +87,8 @@ int main(int argc, char* argv[]) { options_.log_db_path = FLAGS_log_db_path; options_.snap_db_path = FLAGS_snap_db_path; options_.peer_addrs = FLAGS_peer_addrs; - options_.monitor_addrs = FLAGS_monitor_addrs; std::string log_file_path = FLAGS_log_file_path; - ERaftKvServer server(options_); + ERaftKvServer server(options_, 0); auto console_sink = std::make_shared(); console_sink->set_level(spdlog::level::debug); @@ -100,6 +112,10 @@ int main(int argc, char* argv[]) { SPDLOG_INFO("eraftkv server start with peer_addrs " + options_.peer_addrs + " kv_db_path " + options_.kv_db_path); + std::thread httpSvrThread( + &RunHTTPServer, &ERaftKvServer::stat_json_str_, FLAGS_monitor_port); + httpSvrThread.detach(); + server.BuildAndRunRpcServer(); return 0; } diff --git a/example/src/eraftkv_ctl.cc b/example/src/eraftkv_ctl.cc index f0ee2ff3..6c4d0ef9 100644 --- a/example/src/eraftkv_ctl.cc +++ b/example/src/eraftkv_ctl.cc @@ -109,7 +109,7 @@ int main(int argc, char* argv[]) { switch (hashit(cmd)) { case AddGroup: { int shard_id = stoi(std::string(argv[3])); - eraftkv_ctl.AddServerGroupToMeta(shard_id, std::string(argv[4])); + eraftkv_ctl.AddServerGroupToMeta(shard_id, -1, std::string(argv[4])); break; } case QeuryGroups: { diff --git a/example/src/eraftkv_server.cc b/example/src/eraftkv_server.cc index ed2ab9d6..6ffb6f13 100644 --- a/example/src/eraftkv_server.cc +++ b/example/src/eraftkv_server.cc @@ -38,7 +38,9 @@ #include #include +#include "client.h" #include "file_reader_into_stream.h" +#include "httplib.h" #include "sequential_file_reader.h" #include "sequential_file_writer.h" @@ -51,6 +53,11 @@ std::mutex* ERaftKvServer::response_ready_mutex_ = nullptr; bool* ERaftKvServer::is_ok_to_response_ = nullptr; +std::atomic ERaftKvServer::stat_json_str_ = nullptr; + +std::atomic ERaftKvServer::cluster_stats_json_str_ = nullptr; + +int ERaftKvServer::svr_role_ = -1; /** * @brief @@ -291,3 +298,61 @@ EStatus ERaftKvServer::BuildAndRunRpcServer() { server->Wait(); return EStatus::kOk; } + +void ERaftKvServer::UpdateMetaStats() { + try { + if (raft_context_->GetLeaderId() == -1) { + return; + } + auto kvs = raft_context_->store_->PrefixScan(SG_META_PREFIX, 0, 256); + for (auto kv : kvs) { + eraftkv::ShardGroup* sg = new eraftkv::ShardGroup(); + sg->ParseFromString(kv.second); + auto sg_leader_id = sg->leader_id(); + *cluster_stats_json_str_ = "["; + auto shard_svr_addrs = + StringUtil::Split(DEFAULT_SHARD_MONITOR_ADDRS, ','); + for (auto shard_svr : shard_svr_addrs) { + httplib::Client cli(shard_svr); + auto res = cli.Get("/collect_stats"); + } + for (auto server : sg->servers()) { + *cluster_stats_json_str_ += ("{\"id\":" + std::to_string(server.id())); + *cluster_stats_json_str_ += (",\"addr\":\"" + server.address() + "\""); + if (sg_leader_id == server.id()) { + *cluster_stats_json_str_ += ",\"state\":\"L\""; + } else { + *cluster_stats_json_str_ += ",\"state\":\"F\""; + } + *cluster_stats_json_str_ += "},"; + } + (*cluster_stats_json_str_).pop_back(); + *cluster_stats_json_str_ += "]"; + delete sg; + } + } catch (const std::exception& e) { + std::cerr << e.what() << '\n'; + } +} + +void ERaftKvServer::ReportStats() { + try { + if (raft_context_->GetLeaderId() == -1) { + return; + } + auto nodes = raft_context_->GetNodes(); + std::string group_server_addresses = ""; + for (auto node : nodes) { + group_server_addresses += node->address + ","; + } + group_server_addresses.pop_back(); + Client metaserver_cli = Client(); + metaserver_cli.AddServerGroupToMeta( + 1, raft_context_->GetLeaderId(), group_server_addresses); + *stat_json_str_ = "{"; + *stat_json_str_ += "\"commit_index\":\"" + + std::to_string(raft_context_->GetCommitIndex()) + "\"}"; + } catch (const std::exception& e) { + std::cerr << e.what() << '\n'; + } +} \ No newline at end of file diff --git a/example/src/eraftmeta.cc b/example/src/eraftmeta.cc index 89447647..b1782bb3 100644 --- a/example/src/eraftmeta.cc +++ b/example/src/eraftmeta.cc @@ -13,12 +13,26 @@ #include "eraft/raft_server.h" #include "eraftkv_server.h" +#include "httplib.h" DEFINE_int32(svr_id, 0, "server id"); DEFINE_string(kv_db_path, "", "kv rocksdb path"); DEFINE_string(log_db_path, "", "log rocksdb path"); DEFINE_string(peer_addrs, "", "peer address"); -DEFINE_string(monitor_addrs, "", "monitor address"); +DEFINE_int32(monitor_port, 19080, "monitor port"); + +static void RunHTTPServer(std::atomic* json_stat, + int32_t monitor_port) { + httplib::Server svr; + svr.Get("/v1_cluster_stats", + [json_stat](const httplib::Request& req, httplib::Response& res) { + ERaftKvServer::UpdateMetaStats(); + res.set_header("Access-Control-Allow-Origin", "*"); + res.set_content(*(*json_stat), "application/json"); + }); + svr.listen("0.0.0.0", monitor_port); +} + /** * @brief @@ -39,9 +53,12 @@ int main(int argc, char* argv[]) { options_.kv_db_path = FLAGS_kv_db_path; options_.log_db_path = FLAGS_log_db_path; options_.peer_addrs = FLAGS_peer_addrs; - options_.monitor_addrs = FLAGS_monitor_addrs; - ERaftKvServer server(options_); + ERaftKvServer server(options_, 1); + std::thread httpSvrThread(&RunHTTPServer, + &ERaftKvServer::cluster_stats_json_str_, + FLAGS_monitor_port); + httpSvrThread.detach(); server.BuildAndRunRpcServer(); return 0; diff --git a/raftcore/include/eraft/raft_server.h b/raftcore/include/eraft/raft_server.h index ec97e0ed..ae596d02 100644 --- a/raftcore/include/eraft/raft_server.h +++ b/raftcore/include/eraft/raft_server.h @@ -380,6 +380,10 @@ class RaftServer { */ EStatus SnapshotingStart(int64_t ety_idx); + int64_t GetCommitIndex(); + + int64_t GetAppliedIndex(); + /** * @brief * diff --git a/raftcore/src/raft_server.cc b/raftcore/src/raft_server.cc index e042c54e..829aaf9b 100644 --- a/raftcore/src/raft_server.cc +++ b/raftcore/src/raft_server.cc @@ -171,7 +171,7 @@ void RaftServer::RunApply() { * @return EStatus */ EStatus RaftServer::RunCycle() { - ResetRandomElectionTimeout(); + this->ResetRandomElectionTimeout(); while (true) { SPDLOG_INFO("heartbeat_tick_count_ " + std::to_string(heartbeat_tick_count_)); @@ -184,13 +184,12 @@ EStatus RaftServer::RunCycle() { this->last_applied_idx_); heartbeat_tick_count_ += 1; election_tick_count_ += 1; - if (heartbeat_tick_count_ == heartbeat_timeout_) { - if (this->role_ == NodeRaftRoleEnum::Leader) { - SPDLOG_INFO("heartbeat timeout"); - this->SendHeartBeat(); - this->ResetRandomElectionTimeout(); - heartbeat_tick_count_ = 0; - } + if (heartbeat_tick_count_ == heartbeat_timeout_ && + this->role_ == NodeRaftRoleEnum::Leader) { + SPDLOG_INFO("heartbeat timeout"); + this->SendHeartBeat(); + this->ResetRandomElectionTimeout(); + heartbeat_tick_count_ = 0; } if (election_tick_count_ >= election_timeout_) { switch (this->role_) { @@ -1206,4 +1205,12 @@ bool RaftServer::IsLeader() { */ bool RaftServer::IsSnapshoting() { return is_snapshoting_; +} + +int64_t RaftServer::GetCommitIndex() { + return commit_idx_; +} + +int64_t RaftServer::GetAppliedIndex() { + return last_applied_idx_; } \ No newline at end of file