| // |
| // httplib.h |
| // |
| // Copyright (c) 2019 Yuji Hirose. All rights reserved. |
| // MIT License |
| // |
| |
| #ifndef CPPHTTPLIB_HTTPLIB_H |
| #define CPPHTTPLIB_HTTPLIB_H |
| |
| #ifdef _WIN32 |
| #ifndef _CRT_SECURE_NO_WARNINGS |
| #define _CRT_SECURE_NO_WARNINGS |
| #endif //_CRT_SECURE_NO_WARNINGS |
| |
| #ifndef _CRT_NONSTDC_NO_DEPRECATE |
| #define _CRT_NONSTDC_NO_DEPRECATE |
| #endif //_CRT_NONSTDC_NO_DEPRECATE |
| |
| #if defined(_MSC_VER) |
| #ifdef _WIN64 |
| typedef __int64 ssize_t; |
| #else |
| typedef int ssize_t; |
| #endif |
| |
| #if _MSC_VER < 1900 |
| #define snprintf _snprintf_s |
| #endif |
| #endif // _MSC_VER |
| |
| #ifndef S_ISREG |
| #define S_ISREG(m) (((m)&S_IFREG) == S_IFREG) |
| #endif // S_ISREG |
| |
| #ifndef S_ISDIR |
| #define S_ISDIR(m) (((m)&S_IFDIR) == S_IFDIR) |
| #endif // S_ISDIR |
| |
| #ifndef NOMINMAX |
| #define NOMINMAX |
| #endif // NOMINMAX |
| |
| #include <io.h> |
| #include <winsock2.h> |
| #include <ws2tcpip.h> |
| |
| #pragma comment(lib, "ws2_32.lib") |
| |
| #ifndef strcasecmp |
| #define strcasecmp _stricmp |
| #endif // strcasecmp |
| |
| typedef SOCKET socket_t; |
| #else |
| #include <arpa/inet.h> |
| #include <cstring> |
| #include <netdb.h> |
| #include <netinet/in.h> |
| #include <pthread.h> |
| #include <signal.h> |
| #include <sys/select.h> |
| #include <sys/socket.h> |
| #include <unistd.h> |
| |
| typedef int socket_t; |
| #define INVALID_SOCKET (-1) |
| #endif //_WIN32 |
| |
| #include <assert.h> |
| #include <atomic> |
| #include <condition_variable> |
| #include <fcntl.h> |
| #include <fstream> |
| #include <functional> |
| #include <list> |
| #include <map> |
| #include <memory> |
| #include <mutex> |
| #include <random> |
| #include <regex> |
| #include <string> |
| #include <sys/stat.h> |
| #include <thread> |
| |
| #ifdef CPPHTTPLIB_OPENSSL_SUPPORT |
| #include <openssl/err.h> |
| #include <openssl/ssl.h> |
| #include <openssl/x509v3.h> |
| |
| // #if OPENSSL_VERSION_NUMBER < 0x1010100fL |
| // #error Sorry, OpenSSL versions prior to 1.1.1 are not supported |
| // #endif |
| |
| #if OPENSSL_VERSION_NUMBER < 0x10100000L |
| #include <openssl/crypto.h> |
| inline const unsigned char *ASN1_STRING_get0_data(const ASN1_STRING *asn1) { |
| return M_ASN1_STRING_data(asn1); |
| } |
| #endif |
| #endif |
| |
| #ifdef CPPHTTPLIB_ZLIB_SUPPORT |
| #include <zlib.h> |
| #endif |
| |
| /* |
| * Configuration |
| */ |
| #define CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND 5 |
| #define CPPHTTPLIB_KEEPALIVE_TIMEOUT_USECOND 0 |
| #define CPPHTTPLIB_KEEPALIVE_MAX_COUNT 5 |
| #define CPPHTTPLIB_READ_TIMEOUT_SECOND 5 |
| #define CPPHTTPLIB_READ_TIMEOUT_USECOND 0 |
| #define CPPHTTPLIB_REQUEST_URI_MAX_LENGTH 8192 |
| #define CPPHTTPLIB_PAYLOAD_MAX_LENGTH (std::numeric_limits<size_t>::max)() |
| #define CPPHTTPLIB_RECV_BUFSIZ size_t(4096u) |
| #define CPPHTTPLIB_THREAD_POOL_COUNT 8 |
| |
| namespace httplib { |
| |
| namespace detail { |
| |
| struct ci { |
| bool operator()(const std::string &s1, const std::string &s2) const { |
| return std::lexicographical_compare( |
| s1.begin(), s1.end(), s2.begin(), s2.end(), |
| [](char c1, char c2) { return ::tolower(c1) < ::tolower(c2); }); |
| } |
| }; |
| |
| } // namespace detail |
| |
| enum class HttpVersion { v1_0 = 0, v1_1 }; |
| |
| typedef std::multimap<std::string, std::string, detail::ci> Headers; |
| |
| typedef std::multimap<std::string, std::string> Params; |
| typedef std::smatch Match; |
| |
| typedef std::function<void(const char *data, size_t data_len)> DataSink; |
| |
| typedef std::function<void()> Done; |
| |
| typedef std::function<void(size_t offset, size_t length, DataSink sink, |
| Done done)> |
| ContentProvider; |
| |
| typedef std::function<bool(const char *data, size_t data_length, |
| size_t offset, uint64_t content_length)> |
| ContentReceiver; |
| |
| typedef std::function<bool(uint64_t current, uint64_t total)> Progress; |
| |
| struct MultipartFile { |
| std::string filename; |
| std::string content_type; |
| size_t offset = 0; |
| size_t length = 0; |
| }; |
| typedef std::multimap<std::string, MultipartFile> MultipartFiles; |
| |
| struct MultipartFormData { |
| std::string name; |
| std::string content; |
| std::string filename; |
| std::string content_type; |
| }; |
| typedef std::vector<MultipartFormData> MultipartFormDataItems; |
| |
| typedef std::pair<ssize_t, ssize_t> Range; |
| typedef std::vector<Range> Ranges; |
| |
| struct Request { |
| std::string version; |
| std::string method; |
| std::string target; |
| std::string path; |
| Headers headers; |
| std::string body; |
| Params params; |
| MultipartFiles files; |
| Ranges ranges; |
| Match matches; |
| |
| ContentReceiver content_receiver; |
| Progress progress; |
| |
| #ifdef CPPHTTPLIB_OPENSSL_SUPPORT |
| const SSL *ssl; |
| #endif |
| |
| bool has_header(const char *key) const; |
| std::string get_header_value(const char *key, size_t id = 0) const; |
| size_t get_header_value_count(const char *key) const; |
| void set_header(const char *key, const char *val); |
| void set_header(const char *key, const std::string &val); |
| |
| bool has_param(const char *key) const; |
| std::string get_param_value(const char *key, size_t id = 0) const; |
| size_t get_param_value_count(const char *key) const; |
| |
| bool has_file(const char *key) const; |
| MultipartFile get_file_value(const char *key) const; |
| }; |
| |
| struct Response { |
| std::string version; |
| int status; |
| Headers headers; |
| std::string body; |
| |
| bool has_header(const char *key) const; |
| std::string get_header_value(const char *key, size_t id = 0) const; |
| size_t get_header_value_count(const char *key) const; |
| void set_header(const char *key, const char *val); |
| void set_header(const char *key, const std::string &val); |
| |
| void set_redirect(const char *uri); |
| void set_content(const char *s, size_t n, const char *content_type); |
| void set_content(const std::string &s, const char *content_type); |
| |
| void set_content_provider( |
| size_t length, |
| std::function<void(size_t offset, size_t length, DataSink sink)> provider, |
| std::function<void()> resource_releaser = [] {}); |
| |
| void set_chunked_content_provider( |
| std::function<void(size_t offset, DataSink sink, Done done)> provider, |
| std::function<void()> resource_releaser = [] {}); |
| |
| Response() : status(-1), content_provider_resource_length(0) {} |
| |
| ~Response() { |
| if (content_provider_resource_releaser) { |
| content_provider_resource_releaser(); |
| } |
| } |
| |
| size_t content_provider_resource_length; |
| ContentProvider content_provider; |
| std::function<void()> content_provider_resource_releaser; |
| }; |
| |
| class Stream { |
| public: |
| virtual ~Stream() {} |
| virtual int read(char *ptr, size_t size) = 0; |
| virtual int write(const char *ptr, size_t size1) = 0; |
| virtual int write(const char *ptr) = 0; |
| virtual int write(const std::string &s) = 0; |
| virtual std::string get_remote_addr() const = 0; |
| |
| template <typename... Args> |
| int write_format(const char *fmt, const Args &... args); |
| }; |
| |
| class SocketStream : public Stream { |
| public: |
| SocketStream(socket_t sock); |
| virtual ~SocketStream(); |
| |
| virtual int read(char *ptr, size_t size); |
| virtual int write(const char *ptr, size_t size); |
| virtual int write(const char *ptr); |
| virtual int write(const std::string &s); |
| virtual std::string get_remote_addr() const; |
| |
| private: |
| socket_t sock_; |
| }; |
| |
| class BufferStream : public Stream { |
| public: |
| BufferStream() {} |
| virtual ~BufferStream() {} |
| |
| virtual int read(char *ptr, size_t size); |
| virtual int write(const char *ptr, size_t size); |
| virtual int write(const char *ptr); |
| virtual int write(const std::string &s); |
| virtual std::string get_remote_addr() const; |
| |
| const std::string &get_buffer() const; |
| |
| private: |
| std::string buffer; |
| }; |
| |
| class TaskQueue { |
| public: |
| TaskQueue() {} |
| virtual ~TaskQueue() {} |
| virtual void enqueue(std::function<void()> fn) = 0; |
| virtual void shutdown() = 0; |
| }; |
| |
| #if CPPHTTPLIB_THREAD_POOL_COUNT > 0 |
| class ThreadPool : public TaskQueue { |
| public: |
| ThreadPool(size_t n) : shutdown_(false) { |
| while (n) { |
| auto t = std::make_shared<std::thread>(worker(*this)); |
| threads_.push_back(t); |
| n--; |
| } |
| } |
| |
| ThreadPool(const ThreadPool &) = delete; |
| virtual ~ThreadPool() {} |
| |
| virtual void enqueue(std::function<void()> fn) override { |
| std::unique_lock<std::mutex> lock(mutex_); |
| jobs_.push_back(fn); |
| cond_.notify_one(); |
| } |
| |
| virtual void shutdown() override { |
| // Stop all worker threads... |
| { |
| std::unique_lock<std::mutex> lock(mutex_); |
| shutdown_ = true; |
| } |
| |
| cond_.notify_all(); |
| |
| // Join... |
| for (auto t : threads_) { |
| t->join(); |
| } |
| } |
| |
| private: |
| struct worker { |
| worker(ThreadPool &pool) : pool_(pool) {} |
| |
| void operator()() { |
| for (;;) { |
| std::function<void()> fn; |
| { |
| std::unique_lock<std::mutex> lock(pool_.mutex_); |
| |
| pool_.cond_.wait( |
| lock, [&] { return !pool_.jobs_.empty() || pool_.shutdown_; }); |
| |
| if (pool_.shutdown_ && pool_.jobs_.empty()) { break; } |
| |
| fn = pool_.jobs_.front(); |
| pool_.jobs_.pop_front(); |
| } |
| |
| assert(true == (bool)fn); |
| fn(); |
| } |
| } |
| |
| ThreadPool &pool_; |
| }; |
| friend struct worker; |
| |
| std::vector<std::shared_ptr<std::thread>> threads_; |
| std::list<std::function<void()>> jobs_; |
| |
| bool shutdown_; |
| |
| std::condition_variable cond_; |
| std::mutex mutex_; |
| }; |
| #else |
| class Threads : public TaskQueue { |
| public: |
| Threads() : running_threads_(0) {} |
| virtual ~Threads() {} |
| |
| virtual void enqueue(std::function<void()> fn) override { |
| std::thread([=]() { |
| { |
| std::lock_guard<std::mutex> guard(running_threads_mutex_); |
| running_threads_++; |
| } |
| |
| fn(); |
| |
| { |
| std::lock_guard<std::mutex> guard(running_threads_mutex_); |
| running_threads_--; |
| } |
| }).detach(); |
| } |
| |
| virtual void shutdown() override { |
| for (;;) { |
| std::this_thread::sleep_for(std::chrono::milliseconds(10)); |
| std::lock_guard<std::mutex> guard(running_threads_mutex_); |
| if (!running_threads_) { break; } |
| } |
| } |
| |
| private: |
| std::mutex running_threads_mutex_; |
| int running_threads_; |
| }; |
| #endif |
| |
| class Server { |
| public: |
| typedef std::function<void(const Request &, Response &)> Handler; |
| typedef std::function<void(const Request &, const Response &)> Logger; |
| |
| Server(); |
| |
| virtual ~Server(); |
| |
| virtual bool is_valid() const; |
| |
| Server &Get(const char *pattern, Handler handler); |
| Server &Post(const char *pattern, Handler handler); |
| |
| Server &Put(const char *pattern, Handler handler); |
| Server &Patch(const char *pattern, Handler handler); |
| Server &Delete(const char *pattern, Handler handler); |
| Server &Options(const char *pattern, Handler handler); |
| |
| bool set_base_dir(const char *path); |
| void set_file_request_handler(Handler handler); |
| |
| void set_error_handler(Handler handler); |
| void set_logger(Logger logger); |
| |
| void set_keep_alive_max_count(size_t count); |
| void set_payload_max_length(size_t length); |
| |
| int bind_to_any_port(const char *host, int socket_flags = 0); |
| bool listen_after_bind(); |
| |
| bool listen(const char *host, int port, int socket_flags = 0); |
| |
| bool is_running() const; |
| void stop(); |
| |
| std::function<TaskQueue *(void)> new_task_queue; |
| |
| protected: |
| bool process_request(Stream &strm, bool last_connection, |
| bool &connection_close, |
| std::function<void(Request &)> setup_request); |
| |
| size_t keep_alive_max_count_; |
| size_t payload_max_length_; |
| |
| private: |
| typedef std::vector<std::pair<std::regex, Handler>> Handlers; |
| |
| socket_t create_server_socket(const char *host, int port, |
| int socket_flags) const; |
| int bind_internal(const char *host, int port, int socket_flags); |
| bool listen_internal(); |
| |
| bool routing(Request &req, Response &res); |
| bool handle_file_request(Request &req, Response &res); |
| bool dispatch_request(Request &req, Response &res, Handlers &handlers); |
| |
| bool parse_request_line(const char *s, Request &req); |
| bool write_response(Stream &strm, bool last_connection, const Request &req, |
| Response &res); |
| bool write_content_with_provider(Stream &strm, const Request &req, |
| Response &res, const std::string &boundary, |
| const std::string &content_type); |
| |
| virtual bool process_and_close_socket(socket_t sock); |
| |
| std::atomic<bool> is_running_; |
| std::atomic<socket_t> svr_sock_; |
| std::string base_dir_; |
| Handler file_request_handler_; |
| Handlers get_handlers_; |
| Handlers post_handlers_; |
| Handlers put_handlers_; |
| Handlers patch_handlers_; |
| Handlers delete_handlers_; |
| Handlers options_handlers_; |
| Handler error_handler_; |
| Logger logger_; |
| }; |
| |
| class Client { |
| public: |
| Client(const char *host, int port = 80, time_t timeout_sec = 300); |
| |
| virtual ~Client(); |
| |
| virtual bool is_valid() const; |
| |
| std::shared_ptr<Response> Get(const char *path, Progress progress = nullptr); |
| std::shared_ptr<Response> Get(const char *path, const Headers &headers, |
| Progress progress = nullptr); |
| |
| std::shared_ptr<Response> Get(const char *path, |
| ContentReceiver content_receiver, |
| Progress progress = nullptr); |
| std::shared_ptr<Response> Get(const char *path, const Headers &headers, |
| ContentReceiver content_receiver, |
| Progress progress = nullptr); |
| |
| std::shared_ptr<Response> Head(const char *path); |
| std::shared_ptr<Response> Head(const char *path, const Headers &headers); |
| |
| std::shared_ptr<Response> Post(const char *path, const std::string &body, |
| const char *content_type); |
| std::shared_ptr<Response> Post(const char *path, const Headers &headers, |
| const std::string &body, |
| const char *content_type); |
| |
| std::shared_ptr<Response> Post(const char *path, const Params ¶ms); |
| std::shared_ptr<Response> Post(const char *path, const Headers &headers, |
| const Params ¶ms); |
| |
| std::shared_ptr<Response> Post(const char *path, |
| const MultipartFormDataItems &items); |
| std::shared_ptr<Response> Post(const char *path, const Headers &headers, |
| const MultipartFormDataItems &items); |
| |
| std::shared_ptr<Response> Put(const char *path, const std::string &body, |
| const char *content_type); |
| std::shared_ptr<Response> Put(const char *path, const Headers &headers, |
| const std::string &body, |
| const char *content_type); |
| |
| std::shared_ptr<Response> Patch(const char *path, const std::string &body, |
| const char *content_type); |
| std::shared_ptr<Response> Patch(const char *path, const Headers &headers, |
| const std::string &body, |
| const char *content_type); |
| |
| std::shared_ptr<Response> Delete(const char *path, |
| const std::string &body = std::string(), |
| const char *content_type = nullptr); |
| std::shared_ptr<Response> Delete(const char *path, const Headers &headers, |
| const std::string &body = std::string(), |
| const char *content_type = nullptr); |
| |
| std::shared_ptr<Response> Options(const char *path); |
| std::shared_ptr<Response> Options(const char *path, const Headers &headers); |
| |
| bool send(Request &req, Response &res); |
| |
| bool send(std::vector<Request> &requests, std::vector<Response>& responses); |
| |
| void set_keep_alive_max_count(size_t count); |
| |
| protected: |
| bool process_request(Stream &strm, Request &req, Response &res, |
| bool &connection_close); |
| |
| const std::string host_; |
| const int port_; |
| time_t timeout_sec_; |
| const std::string host_and_port_; |
| size_t keep_alive_max_count_; |
| |
| private: |
| socket_t create_client_socket() const; |
| bool read_response_line(Stream &strm, Response &res); |
| void write_request(Stream &strm, Request &req); |
| |
| virtual bool process_and_close_socket( |
| socket_t sock, size_t request_count, |
| std::function<bool(Stream &strm, bool last_connection, |
| bool &connection_close)> |
| callback); |
| |
| virtual bool is_ssl() const; |
| }; |
| |
| inline void Get(std::vector<Request> &requests, const char *path, const Headers &headers) { |
| Request req; |
| req.method = "GET"; |
| req.path = path; |
| req.headers = headers; |
| requests.emplace_back(std::move(req)); |
| } |
| |
| inline void Get(std::vector<Request> &requests, const char *path) { |
| Get(requests, path, Headers()); |
| } |
| |
| inline void Post(std::vector<Request> &requests, const char *path, const Headers &headers, const std::string &body, const char *content_type) { |
| Request req; |
| req.method = "POST"; |
| req.path = path; |
| req.headers = headers; |
| req.headers.emplace("Content-Type", content_type); |
| req.body = body; |
| requests.emplace_back(std::move(req)); |
| } |
| |
| inline void Post(std::vector<Request> &requests, const char *path, const std::string &body, const char *content_type) { |
| Post(requests, path, Headers(), body, content_type); |
| } |
| |
| #ifdef CPPHTTPLIB_OPENSSL_SUPPORT |
| class SSLSocketStream : public Stream { |
| public: |
| SSLSocketStream(socket_t sock, SSL *ssl); |
| virtual ~SSLSocketStream(); |
| |
| virtual int read(char *ptr, size_t size); |
| virtual int write(const char *ptr, size_t size); |
| virtual int write(const char *ptr); |
| virtual int write(const std::string &s); |
| virtual std::string get_remote_addr() const; |
| |
| private: |
| socket_t sock_; |
| SSL *ssl_; |
| }; |
| |
| 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); |
| |
| virtual ~SSLServer(); |
| |
| virtual bool is_valid() const; |
| |
| private: |
| virtual bool process_and_close_socket(socket_t sock); |
| |
| SSL_CTX *ctx_; |
| std::mutex ctx_mutex_; |
| }; |
| |
| class SSLClient : public Client { |
| public: |
| SSLClient(const char *host, int port = 443, time_t timeout_sec = 300, |
| const char *client_cert_path = nullptr, |
| const char *client_key_path = nullptr); |
| |
| virtual ~SSLClient(); |
| |
| virtual bool is_valid() const; |
| |
| void set_ca_cert_path(const char *ca_ceert_file_path, |
| const char *ca_cert_dir_path = nullptr); |
| void enable_server_certificate_verification(bool enabled); |
| |
| long get_openssl_verify_result() const; |
| |
| private: |
| virtual bool process_and_close_socket( |
| socket_t sock, size_t request_count, |
| std::function<bool(Stream &strm, bool last_connection, |
| bool &connection_close)> |
| callback); |
| virtual bool is_ssl() const; |
| |
| bool verify_host(X509 *server_cert) const; |
| bool verify_host_with_subject_alt_name(X509 *server_cert) const; |
| bool verify_host_with_common_name(X509 *server_cert) const; |
| bool check_host_name(const char *pattern, size_t pattern_len) const; |
| |
| SSL_CTX *ctx_; |
| std::mutex ctx_mutex_; |
| std::vector<std::string> host_components_; |
| std::string ca_cert_file_path_; |
| std::string ca_cert_dir_path_; |
| bool server_certificate_verification_ = false; |
| long verify_result_ = 0; |
| }; |
| #endif |
| |
| /* |
| * Implementation |
| */ |
| namespace detail { |
| |
| inline bool is_hex(char c, int &v) { |
| if (0x20 <= c && isdigit(c)) { |
| v = c - '0'; |
| return true; |
| } else if ('A' <= c && c <= 'F') { |
| v = c - 'A' + 10; |
| return true; |
| } else if ('a' <= c && c <= 'f') { |
| v = c - 'a' + 10; |
| return true; |
| } |
| return false; |
| } |
| |
| inline bool from_hex_to_i(const std::string &s, size_t i, size_t cnt, |
| int &val) { |
| if (i >= s.size()) { return false; } |
| |
| val = 0; |
| for (; cnt; i++, cnt--) { |
| if (!s[i]) { return false; } |
| int v = 0; |
| if (is_hex(s[i], v)) { |
| val = val * 16 + v; |
| } else { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| inline std::string from_i_to_hex(size_t n) { |
| const char *charset = "0123456789abcdef"; |
| std::string ret; |
| do { |
| ret = charset[n & 15] + ret; |
| n >>= 4; |
| } while (n > 0); |
| return ret; |
| } |
| |
| inline size_t to_utf8(int code, char *buff) { |
| if (code < 0x0080) { |
| buff[0] = (code & 0x7F); |
| return 1; |
| } else if (code < 0x0800) { |
| buff[0] = (0xC0 | ((code >> 6) & 0x1F)); |
| buff[1] = (0x80 | (code & 0x3F)); |
| return 2; |
| } else if (code < 0xD800) { |
| buff[0] = (0xE0 | ((code >> 12) & 0xF)); |
| buff[1] = (0x80 | ((code >> 6) & 0x3F)); |
| buff[2] = (0x80 | (code & 0x3F)); |
| return 3; |
| } else if (code < 0xE000) { // D800 - DFFF is invalid... |
| return 0; |
| } else if (code < 0x10000) { |
| buff[0] = (0xE0 | ((code >> 12) & 0xF)); |
| buff[1] = (0x80 | ((code >> 6) & 0x3F)); |
| buff[2] = (0x80 | (code & 0x3F)); |
| return 3; |
| } else if (code < 0x110000) { |
| buff[0] = (0xF0 | ((code >> 18) & 0x7)); |
| buff[1] = (0x80 | ((code >> 12) & 0x3F)); |
| buff[2] = (0x80 | ((code >> 6) & 0x3F)); |
| buff[3] = (0x80 | (code & 0x3F)); |
| return 4; |
| } |
| |
| // NOTREACHED |
| return 0; |
| } |
| |
| // NOTE: This code came up with the following stackoverflow post: |
| // https://stackoverflow.com/questions/180947/base64-decode-snippet-in-c |
| inline std::string base64_encode(const std::string &in) { |
| static const auto lookup = |
| "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; |
| |
| std::string out; |
| out.reserve(in.size()); |
| |
| int val = 0; |
| int valb = -6; |
| |
| for (uint8_t c : in) { |
| val = (val << 8) + c; |
| valb += 8; |
| while (valb >= 0) { |
| out.push_back(lookup[(val >> valb) & 0x3F]); |
| valb -= 6; |
| } |
| } |
| |
| if (valb > -6) { out.push_back(lookup[((val << 8) >> (valb + 8)) & 0x3F]); } |
| |
| while (out.size() % 4) { |
| out.push_back('='); |
| } |
| |
| return out; |
| } |
| |
| inline bool is_file(const std::string &path) { |
| struct stat st; |
| return stat(path.c_str(), &st) >= 0 && S_ISREG(st.st_mode); |
| } |
| |
| inline bool is_dir(const std::string &path) { |
| struct stat st; |
| return stat(path.c_str(), &st) >= 0 && S_ISDIR(st.st_mode); |
| } |
| |
| inline bool is_valid_path(const std::string &path) { |
| size_t level = 0; |
| size_t i = 0; |
| |
| // Skip slash |
| while (i < path.size() && path[i] == '/') { |
| i++; |
| } |
| |
| while (i < path.size()) { |
| // Read component |
| auto beg = i; |
| while (i < path.size() && path[i] != '/') { |
| i++; |
| } |
| |
| auto len = i - beg; |
| assert(len > 0); |
| |
| if (!path.compare(beg, len, ".")) { |
| ; |
| } else if (!path.compare(beg, len, "..")) { |
| if (level == 0) { return false; } |
| level--; |
| } else { |
| level++; |
| } |
| |
| // Skip slash |
| while (i < path.size() && path[i] == '/') { |
| i++; |
| } |
| } |
| |
| return true; |
| } |
| |
| inline void read_file(const std::string &path, std::string &out) { |
| std::ifstream fs(path, std::ios_base::binary); |
| fs.seekg(0, std::ios_base::end); |
| auto size = fs.tellg(); |
| fs.seekg(0); |
| out.resize(static_cast<size_t>(size)); |
| fs.read(&out[0], size); |
| } |
| |
| inline std::string file_extension(const std::string &path) { |
| std::smatch m; |
| auto pat = std::regex("\\.([a-zA-Z0-9]+)$"); |
| if (std::regex_search(path, m, pat)) { return m[1].str(); } |
| return std::string(); |
| } |
| |
| template <class Fn> void split(const char *b, const char *e, char d, Fn fn) { |
| int i = 0; |
| int beg = 0; |
| |
| while (e ? (b + i != e) : (b[i] != '\0')) { |
| if (b[i] == d) { |
| fn(&b[beg], &b[i]); |
| beg = i + 1; |
| } |
| i++; |
| } |
| |
| if (i) { fn(&b[beg], &b[i]); } |
| } |
| |
| // NOTE: until the read size reaches `fixed_buffer_size`, use `fixed_buffer` |
| // to store data. The call can set memory on stack for performance. |
| class stream_line_reader { |
| public: |
| stream_line_reader(Stream &strm, char *fixed_buffer, size_t fixed_buffer_size) |
| : strm_(strm), fixed_buffer_(fixed_buffer), |
| fixed_buffer_size_(fixed_buffer_size) {} |
| |
| const char *ptr() const { |
| if (glowable_buffer_.empty()) { |
| return fixed_buffer_; |
| } else { |
| return glowable_buffer_.data(); |
| } |
| } |
| |
| size_t size() const { |
| if (glowable_buffer_.empty()) { |
| return fixed_buffer_used_size_; |
| } else { |
| return glowable_buffer_.size(); |
| } |
| } |
| |
| bool getline() { |
| fixed_buffer_used_size_ = 0; |
| glowable_buffer_.clear(); |
| |
| for (size_t i = 0;; i++) { |
| char byte; |
| auto n = strm_.read(&byte, 1); |
| |
| if (n < 0) { |
| return false; |
| } else if (n == 0) { |
| if (i == 0) { |
| return false; |
| } else { |
| break; |
| } |
| } |
| |
| append(byte); |
| |
| if (byte == '\n') { break; } |
| } |
| |
| return true; |
| } |
| |
| private: |
| void append(char c) { |
| if (fixed_buffer_used_size_ < fixed_buffer_size_ - 1) { |
| fixed_buffer_[fixed_buffer_used_size_++] = c; |
| fixed_buffer_[fixed_buffer_used_size_] = '\0'; |
| } else { |
| if (glowable_buffer_.empty()) { |
| assert(fixed_buffer_[fixed_buffer_used_size_] == '\0'); |
| glowable_buffer_.assign(fixed_buffer_, fixed_buffer_used_size_); |
| } |
| glowable_buffer_ += c; |
| } |
| } |
| |
| Stream &strm_; |
| char *fixed_buffer_; |
| const size_t fixed_buffer_size_; |
| size_t fixed_buffer_used_size_; |
| std::string glowable_buffer_; |
| }; |
| |
| inline int close_socket(socket_t sock) { |
| #ifdef _WIN32 |
| return closesocket(sock); |
| #else |
| return close(sock); |
| #endif |
| } |
| |
| inline int select_read(socket_t sock, time_t sec, time_t usec) { |
| fd_set fds; |
| FD_ZERO(&fds); |
| FD_SET(sock, &fds); |
| |
| timeval tv; |
| tv.tv_sec = static_cast<long>(sec); |
| tv.tv_usec = static_cast<long>(usec); |
| |
| return select(static_cast<int>(sock + 1), &fds, nullptr, nullptr, &tv); |
| } |
| |
| inline bool wait_until_socket_is_ready(socket_t sock, time_t sec, time_t usec) { |
| fd_set fdsr; |
| FD_ZERO(&fdsr); |
| FD_SET(sock, &fdsr); |
| |
| auto fdsw = fdsr; |
| auto fdse = fdsr; |
| |
| timeval tv; |
| tv.tv_sec = static_cast<long>(sec); |
| tv.tv_usec = static_cast<long>(usec); |
| |
| if (select(static_cast<int>(sock + 1), &fdsr, &fdsw, &fdse, &tv) < 0) { |
| return false; |
| } else if (FD_ISSET(sock, &fdsr) || FD_ISSET(sock, &fdsw)) { |
| int error = 0; |
| socklen_t len = sizeof(error); |
| if (getsockopt(sock, SOL_SOCKET, SO_ERROR, (char *)&error, &len) < 0 || |
| error) { |
| return false; |
| } |
| } else { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| template <typename T> |
| inline bool process_and_close_socket(bool is_client_request, socket_t sock, |
| size_t keep_alive_max_count, T callback) { |
| assert(keep_alive_max_count > 0); |
| |
| bool ret = false; |
| |
| if (keep_alive_max_count > 1) { |
| auto count = keep_alive_max_count; |
| while (count > 0 && |
| (is_client_request || |
| detail::select_read(sock, CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND, |
| CPPHTTPLIB_KEEPALIVE_TIMEOUT_USECOND) > 0)) { |
| SocketStream strm(sock); |
| auto last_connection = count == 1; |
| auto connection_close = false; |
| |
| ret = callback(strm, last_connection, connection_close); |
| if (!ret || connection_close) { break; } |
| |
| count--; |
| } |
| } else { |
| SocketStream strm(sock); |
| auto dummy_connection_close = false; |
| ret = callback(strm, true, dummy_connection_close); |
| } |
| |
| close_socket(sock); |
| return ret; |
| } |
| |
| inline int shutdown_socket(socket_t sock) { |
| #ifdef _WIN32 |
| return shutdown(sock, SD_BOTH); |
| #else |
| return shutdown(sock, SHUT_RDWR); |
| #endif |
| } |
| |
| template <typename Fn> |
| socket_t create_socket(const char *host, int port, Fn fn, |
| int socket_flags = 0) { |
| #ifdef _WIN32 |
| #define SO_SYNCHRONOUS_NONALERT 0x20 |
| #define SO_OPENTYPE 0x7008 |
| |
| int opt = SO_SYNCHRONOUS_NONALERT; |
| setsockopt(INVALID_SOCKET, SOL_SOCKET, SO_OPENTYPE, (char *)&opt, |
| sizeof(opt)); |
| #endif |
| |
| // Get address info |
| struct addrinfo hints; |
| struct addrinfo *result; |
| |
| memset(&hints, 0, sizeof(struct addrinfo)); |
| hints.ai_family = AF_UNSPEC; |
| hints.ai_socktype = SOCK_STREAM; |
| hints.ai_flags = socket_flags; |
| hints.ai_protocol = 0; |
| |
| auto service = std::to_string(port); |
| |
| if (getaddrinfo(host, service.c_str(), &hints, &result)) { |
| return INVALID_SOCKET; |
| } |
| |
| for (auto rp = result; rp; rp = rp->ai_next) { |
| // Create a socket |
| #ifdef _WIN32 |
| auto sock = WSASocketW(rp->ai_family, rp->ai_socktype, rp->ai_protocol, |
| nullptr, 0, WSA_FLAG_NO_HANDLE_INHERIT); |
| #else |
| auto sock = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol); |
| #endif |
| if (sock == INVALID_SOCKET) { continue; } |
| |
| #ifndef _WIN32 |
| if (fcntl(sock, F_SETFD, FD_CLOEXEC) == -1) { continue; } |
| #endif |
| |
| // Make 'reuse address' option available |
| int yes = 1; |
| setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (char *)&yes, sizeof(yes)); |
| #ifdef SO_REUSEPORT |
| setsockopt(sock, SOL_SOCKET, SO_REUSEPORT, (char *)&yes, sizeof(yes)); |
| #endif |
| |
| // bind or connect |
| if (fn(sock, *rp)) { |
| freeaddrinfo(result); |
| return sock; |
| } |
| |
| close_socket(sock); |
| } |
| |
| freeaddrinfo(result); |
| return INVALID_SOCKET; |
| } |
| |
| inline void set_nonblocking(socket_t sock, bool nonblocking) { |
| #ifdef _WIN32 |
| auto flags = nonblocking ? 1UL : 0UL; |
| ioctlsocket(sock, FIONBIO, &flags); |
| #else |
| auto flags = fcntl(sock, F_GETFL, 0); |
| fcntl(sock, F_SETFL, |
| nonblocking ? (flags | O_NONBLOCK) : (flags & (~O_NONBLOCK))); |
| #endif |
| } |
| |
| inline bool is_connection_error() { |
| #ifdef _WIN32 |
| return WSAGetLastError() != WSAEWOULDBLOCK; |
| #else |
| return errno != EINPROGRESS; |
| #endif |
| } |
| |
| inline std::string get_remote_addr(socket_t sock) { |
| struct sockaddr_storage addr; |
| socklen_t len = sizeof(addr); |
| |
| if (!getpeername(sock, (struct sockaddr *)&addr, &len)) { |
| char ipstr[NI_MAXHOST]; |
| |
| if (!getnameinfo((struct sockaddr *)&addr, len, ipstr, sizeof(ipstr), |
| nullptr, 0, NI_NUMERICHOST)) { |
| return ipstr; |
| } |
| } |
| |
| return std::string(); |
| } |
| |
| inline const char *find_content_type(const std::string &path) { |
| auto ext = file_extension(path); |
| if (ext == "txt") { |
| return "text/plain"; |
| } else if (ext == "html") { |
| return "text/html"; |
| } else if (ext == "css") { |
| return "text/css"; |
| } else if (ext == "jpeg" || ext == "jpg") { |
| return "image/jpg"; |
| } else if (ext == "png") { |
| return "image/png"; |
| } else if (ext == "gif") { |
| return "image/gif"; |
| } else if (ext == "svg") { |
| return "image/svg+xml"; |
| } else if (ext == "ico") { |
| return "image/x-icon"; |
| } else if (ext == "json") { |
| return "application/json"; |
| } else if (ext == "pdf") { |
| return "application/pdf"; |
| } else if (ext == "js") { |
| return "application/javascript"; |
| } else if (ext == "xml") { |
| return "application/xml"; |
| } else if (ext == "xhtml") { |
| return "application/xhtml+xml"; |
| } |
| return nullptr; |
| } |
| |
| inline const char *status_message(int status) { |
| switch (status) { |
| case 200: return "OK"; |
| case 206: return "Partial Content"; |
| case 301: return "Moved Permanently"; |
| case 302: return "Found"; |
| case 303: return "See Other"; |
| case 304: return "Not Modified"; |
| case 400: return "Bad Request"; |
| case 403: return "Forbidden"; |
| case 404: return "Not Found"; |
| case 413: return "Payload Too Large"; |
| case 414: return "Request-URI Too Long"; |
| case 415: return "Unsupported Media Type"; |
| case 416: return "Range Not Satisfiable"; |
| |
| default: |
| case 500: return "Internal Server Error"; |
| } |
| } |
| |
| #ifdef CPPHTTPLIB_ZLIB_SUPPORT |
| inline bool can_compress(const std::string &content_type) { |
| return !content_type.find("text/") || content_type == "image/svg+xml" || |
| content_type == "application/javascript" || |
| content_type == "application/json" || |
| content_type == "application/xml" || |
| content_type == "application/xhtml+xml"; |
| } |
| |
| inline bool compress(std::string &content) { |
| z_stream strm; |
| strm.zalloc = Z_NULL; |
| strm.zfree = Z_NULL; |
| strm.opaque = Z_NULL; |
| |
| auto ret = deflateInit2(&strm, Z_DEFAULT_COMPRESSION, Z_DEFLATED, 31, 8, |
| Z_DEFAULT_STRATEGY); |
| if (ret != Z_OK) { return false; } |
| |
| strm.avail_in = content.size(); |
| strm.next_in = (Bytef *)content.data(); |
| |
| std::string compressed; |
| |
| const auto bufsiz = 16384; |
| char buff[bufsiz]; |
| do { |
| strm.avail_out = bufsiz; |
| strm.next_out = (Bytef *)buff; |
| ret = deflate(&strm, Z_FINISH); |
| assert(ret != Z_STREAM_ERROR); |
| compressed.append(buff, bufsiz - strm.avail_out); |
| } while (strm.avail_out == 0); |
| |
| assert(ret == Z_STREAM_END); |
| assert(strm.avail_in == 0); |
| |
| content.swap(compressed); |
| |
| deflateEnd(&strm); |
| return true; |
| } |
| |
| class decompressor { |
| public: |
| decompressor() { |
| 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 16 specifies |
| // that the stream to decompress will be formatted with a gzip wrapper. |
| is_valid_ = inflateInit2(&strm, 16 + 15) == Z_OK; |
| } |
| |
| ~decompressor() { inflateEnd(&strm); } |
| |
| bool is_valid() const { return is_valid_; } |
| |
| template <typename T> |
| bool decompress(const char *data, size_t data_length, T callback) { |
| int ret = Z_OK; |
| |
| strm.avail_in = data_length; |
| strm.next_in = (Bytef *)data; |
| |
| const auto bufsiz = 16384; |
| char buff[bufsiz]; |
| do { |
| strm.avail_out = bufsiz; |
| strm.next_out = (Bytef *)buff; |
| |
| ret = inflate(&strm, Z_NO_FLUSH); |
| assert(ret != Z_STREAM_ERROR); |
| switch (ret) { |
| case Z_NEED_DICT: |
| case Z_DATA_ERROR: |
| case Z_MEM_ERROR: inflateEnd(&strm); return false; |
| } |
| |
| if (!callback(buff, bufsiz - strm.avail_out)) { return false; } |
| } while (strm.avail_out == 0); |
| |
| return ret == Z_STREAM_END; |
| } |
| |
| private: |
| bool is_valid_; |
| z_stream strm; |
| }; |
| #endif |
| |
| inline bool has_header(const Headers &headers, const char *key) { |
| return headers.find(key) != headers.end(); |
| } |
| |
| inline const char *get_header_value(const Headers &headers, const char *key, |
| size_t id = 0, const char *def = nullptr) { |
| auto it = headers.find(key); |
| std::advance(it, id); |
| if (it != headers.end()) { return it->second.c_str(); } |
| return def; |
| } |
| |
| inline uint64_t get_header_value_uint64(const Headers &headers, const char *key, |
| int def = 0) { |
| auto it = headers.find(key); |
| if (it != headers.end()) { |
| return std::strtoull(it->second.data(), nullptr, 10); |
| } |
| return def; |
| } |
| |
| inline bool read_headers(Stream &strm, Headers &headers) { |
| static std::regex re(R"((.+?):\s*(.+?)\s*\r\n)"); |
| |
| const auto bufsiz = 2048; |
| char buf[bufsiz]; |
| |
| stream_line_reader reader(strm, buf, bufsiz); |
| |
| for (;;) { |
| if (!reader.getline()) { return false; } |
| if (!strcmp(reader.ptr(), "\r\n")) { break; } |
| std::cmatch m; |
| if (std::regex_match(reader.ptr(), m, re)) { |
| auto key = std::string(m[1]); |
| auto val = std::string(m[2]); |
| headers.emplace(key, val); |
| } |
| } |
| |
| return true; |
| } |
| |
| typedef std::function<bool(const char *data, size_t data_length)> |
| ContentReceiverCore; |
| |
| inline bool read_content_with_length(Stream &strm, uint64_t len, |
| Progress progress, |
| ContentReceiverCore out) { |
| char buf[CPPHTTPLIB_RECV_BUFSIZ]; |
| |
| uint64_t r = 0; |
| while (r < len) { |
| auto read_len = static_cast<size_t>(len - r); |
| auto n = strm.read(buf, std::min(read_len, CPPHTTPLIB_RECV_BUFSIZ)); |
| if (n <= 0) { return false; } |
| |
| if (!out(buf, n)) { return false; } |
| |
| r += n; |
| |
| if (progress) { |
| if (!progress(r, len)) { return false; } |
| } |
| } |
| |
| return true; |
| } |
| |
| inline void skip_content_with_length(Stream &strm, uint64_t len) { |
| char buf[CPPHTTPLIB_RECV_BUFSIZ]; |
| uint64_t r = 0; |
| while (r < len) { |
| auto read_len = static_cast<size_t>(len - r); |
| auto n = strm.read(buf, std::min(read_len, CPPHTTPLIB_RECV_BUFSIZ)); |
| if (n <= 0) { return; } |
| r += n; |
| } |
| } |
| |
| inline bool read_content_without_length(Stream &strm, ContentReceiverCore out) { |
| char buf[CPPHTTPLIB_RECV_BUFSIZ]; |
| for (;;) { |
| auto n = strm.read(buf, CPPHTTPLIB_RECV_BUFSIZ); |
| if (n < 0) { |
| return false; |
| } else if (n == 0) { |
| return true; |
| } |
| if (!out(buf, n)) { return false; } |
| } |
| |
| return true; |
| } |
| |
| inline bool read_content_chunked(Stream &strm, ContentReceiverCore out) { |
| const auto bufsiz = 16; |
| char buf[bufsiz]; |
| |
| stream_line_reader reader(strm, buf, bufsiz); |
| |
| if (!reader.getline()) { return false; } |
| |
| auto chunk_len = std::stoi(reader.ptr(), 0, 16); |
| |
| while (chunk_len > 0) { |
| if (!read_content_with_length(strm, chunk_len, nullptr, out)) { |
| return false; |
| } |
| |
| if (!reader.getline()) { return false; } |
| |
| if (strcmp(reader.ptr(), "\r\n")) { break; } |
| |
| if (!reader.getline()) { return false; } |
| |
| chunk_len = std::stoi(reader.ptr(), 0, 16); |
| } |
| |
| if (chunk_len == 0) { |
| // Reader terminator after chunks |
| if (!reader.getline() || strcmp(reader.ptr(), "\r\n")) return false; |
| } |
| |
| return true; |
| } |
| |
| inline bool is_chunked_transfer_encoding(const Headers &headers) { |
| return !strcasecmp(get_header_value(headers, "Transfer-Encoding", 0, ""), |
| "chunked"); |
| } |
| |
| template <typename T> |
| bool read_content(Stream &strm, T &x, size_t payload_max_length, int &status, |
| Progress progress, ContentReceiverCore receiver) { |
| |
| ContentReceiverCore out = [&](const char *buf, size_t n) { |
| return receiver(buf, n); |
| }; |
| |
| #ifdef CPPHTTPLIB_ZLIB_SUPPORT |
| detail::decompressor decompressor; |
| |
| if (!decompressor.is_valid()) { |
| status = 500; |
| return false; |
| } |
| |
| if (x.get_header_value("Content-Encoding") == "gzip") { |
| out = [&](const char *buf, size_t n) { |
| return decompressor.decompress( |
| buf, n, [&](const char *buf, size_t n) { return receiver(buf, n); }); |
| }; |
| } |
| #else |
| if (x.get_header_value("Content-Encoding") == "gzip") { |
| status = 415; |
| return false; |
| } |
| #endif |
| |
| auto ret = true; |
| auto exceed_payload_max_length = false; |
| |
| if (is_chunked_transfer_encoding(x.headers)) { |
| ret = read_content_chunked(strm, out); |
| } else if (!has_header(x.headers, "Content-Length")) { |
| ret = read_content_without_length(strm, out); |
| } else { |
| auto len = get_header_value_uint64(x.headers, "Content-Length", 0); |
| if (len > payload_max_length) { |
| exceed_payload_max_length = true; |
| skip_content_with_length(strm, len); |
| ret = false; |
| } else if (len > 0) { |
| ret = read_content_with_length(strm, len, progress, out); |
| } |
| } |
| |
| if (!ret) { status = exceed_payload_max_length ? 413 : 400; } |
| |
| return ret; |
| } |
| |
| template <typename T> inline int write_headers(Stream &strm, const T &info) { |
| auto write_len = 0; |
| for (const auto &x : info.headers) { |
| auto len = |
| strm.write_format("%s: %s\r\n", x.first.c_str(), x.second.c_str()); |
| if (len < 0) { return len; } |
| write_len += len; |
| } |
| auto len = strm.write("\r\n"); |
| if (len < 0) { return len; } |
| write_len += len; |
| return write_len; |
| } |
| |
| inline ssize_t write_content(Stream &strm, ContentProvider content_provider, |
| size_t offset, size_t length) { |
| size_t begin_offset = offset; |
| size_t end_offset = offset + length; |
| while (offset < end_offset) { |
| ssize_t written_length = 0; |
| content_provider( |
| offset, end_offset - offset, |
| [&](const char *d, size_t l) { |
| offset += l; |
| written_length = strm.write(d, l); |
| }, |
| [&](void) { written_length = -1; }); |
| if (written_length < 0) { return written_length; } |
| } |
| return static_cast<ssize_t>(offset - begin_offset); |
| } |
| |
| inline ssize_t write_content_chunked(Stream &strm, |
| ContentProvider content_provider) { |
| size_t offset = 0; |
| auto data_available = true; |
| ssize_t total_written_length = 0; |
| while (data_available) { |
| ssize_t written_length = 0; |
| content_provider( |
| offset, 0, |
| [&](const char *d, size_t l) { |
| data_available = l > 0; |
| offset += l; |
| |
| // Emit chunked response header and footer for each chunk |
| auto chunk = from_i_to_hex(l) + "\r\n" + std::string(d, l) + "\r\n"; |
| written_length = strm.write(chunk); |
| }, |
| [&](void) { |
| data_available = false; |
| written_length = strm.write("0\r\n\r\n"); |
| }); |
| |
| if (written_length < 0) { return written_length; } |
| total_written_length += written_length; |
| } |
| return total_written_length; |
| } |
| |
| inline std::string encode_url(const std::string &s) { |
| std::string result; |
| |
| for (auto i = 0; s[i]; i++) { |
| switch (s[i]) { |
| case ' ': result += "%20"; break; |
| case '+': result += "%2B"; break; |
| case '\r': result += "%0D"; break; |
| case '\n': result += "%0A"; break; |
| case '\'': result += "%27"; break; |
| case ',': result += "%2C"; break; |
| case ':': result += "%3A"; break; |
| case ';': result += "%3B"; break; |
| default: |
| auto c = static_cast<uint8_t>(s[i]); |
| if (c >= 0x80) { |
| result += '%'; |
| char hex[4]; |
| size_t len = snprintf(hex, sizeof(hex) - 1, "%02X", c); |
| assert(len == 2); |
| result.append(hex, len); |
| } else { |
| result += s[i]; |
| } |
| break; |
| } |
| } |
| |
| return result; |
| } |
| |
| inline std::string decode_url(const std::string &s) { |
| std::string result; |
| |
| for (size_t i = 0; i < s.size(); i++) { |
| if (s[i] == '%' && i + 1 < s.size()) { |
| if (s[i + 1] == 'u') { |
| int val = 0; |
| if (from_hex_to_i(s, i + 2, 4, val)) { |
| // 4 digits Unicode codes |
| char buff[4]; |
| size_t len = to_utf8(val, buff); |
| if (len > 0) { result.append(buff, len); } |
| i += 5; // 'u0000' |
| } else { |
| result += s[i]; |
| } |
| } else { |
| int val = 0; |
| if (from_hex_to_i(s, i + 1, 2, val)) { |
| // 2 digits hex codes |
| result += val; |
| i += 2; // '00' |
| } else { |
| result += s[i]; |
| } |
| } |
| } else if (s[i] == '+') { |
| result += ' '; |
| } else { |
| result += s[i]; |
| } |
| } |
| |
| return result; |
| } |
| |
| inline void parse_query_text(const std::string &s, Params ¶ms) { |
| split(&s[0], &s[s.size()], '&', [&](const char *b, const char *e) { |
| std::string key; |
| std::string val; |
| split(b, e, '=', [&](const char *b, const char *e) { |
| if (key.empty()) { |
| key.assign(b, e); |
| } else { |
| val.assign(b, e); |
| } |
| }); |
| params.emplace(key, decode_url(val)); |
| }); |
| } |
| |
| inline bool parse_multipart_boundary(const std::string &content_type, |
| std::string &boundary) { |
| auto pos = content_type.find("boundary="); |
| if (pos == std::string::npos) { return false; } |
| |
| boundary = content_type.substr(pos + 9); |
| return true; |
| } |
| |
| inline bool parse_multipart_formdata(const std::string &boundary, |
| const std::string &body, |
| MultipartFiles &files) { |
| static std::string dash = "--"; |
| static std::string crlf = "\r\n"; |
| |
| static std::regex re_content_type("Content-Type: (.*?)", |
| std::regex_constants::icase); |
| |
| static std::regex re_content_disposition( |
| "Content-Disposition: form-data; name=\"(.*?)\"(?:; filename=\"(.*?)\")?", |
| std::regex_constants::icase); |
| |
| auto dash_boundary = dash + boundary; |
| |
| auto pos = body.find(dash_boundary); |
| if (pos != 0) { return false; } |
| |
| pos += dash_boundary.size(); |
| |
| auto next_pos = body.find(crlf, pos); |
| if (next_pos == std::string::npos) { return false; } |
| |
| pos = next_pos + crlf.size(); |
| |
| while (pos < body.size()) { |
| next_pos = body.find(crlf, pos); |
| if (next_pos == std::string::npos) { return false; } |
| |
| std::string name; |
| MultipartFile file; |
| |
| auto header = body.substr(pos, (next_pos - pos)); |
| |
| while (pos != next_pos) { |
| std::smatch m; |
| if (std::regex_match(header, m, re_content_type)) { |
| file.content_type = m[1]; |
| } else if (std::regex_match(header, m, re_content_disposition)) { |
| name = m[1]; |
| file.filename = m[2]; |
| } |
| |
| pos = next_pos + crlf.size(); |
| |
| next_pos = body.find(crlf, pos); |
| if (next_pos == std::string::npos) { return false; } |
| |
| header = body.substr(pos, (next_pos - pos)); |
| } |
| |
| pos = next_pos + crlf.size(); |
| |
| next_pos = body.find(crlf + dash_boundary, pos); |
| |
| if (next_pos == std::string::npos) { return false; } |
| |
| file.offset = pos; |
| file.length = next_pos - pos; |
| |
| pos = next_pos + crlf.size() + dash_boundary.size(); |
| |
| next_pos = body.find(crlf, pos); |
| if (next_pos == std::string::npos) { return false; } |
| |
| files.emplace(name, file); |
| |
| pos = next_pos + crlf.size(); |
| } |
| |
| return true; |
| } |
| |
| inline bool parse_range_header(const std::string &s, Ranges &ranges) { |
| try { |
| static auto re = std::regex(R"(bytes=(\d*-\d*(?:,\s*\d*-\d*)*))"); |
| std::smatch m; |
| if (std::regex_match(s, m, re)) { |
| auto pos = m.position(1); |
| auto len = m.length(1); |
| detail::split( |
| &s[pos], &s[pos + len], ',', [&](const char *b, const char *e) { |
| static auto re = std::regex(R"(\s*(\d*)-(\d*))"); |
| std::cmatch m; |
| if (std::regex_match(b, e, m, re)) { |
| ssize_t first = -1; |
| if (!m.str(1).empty()) { first = static_cast<ssize_t>(std::stoll(m.str(1))); } |
| |
| ssize_t last = -1; |
| if (!m.str(2).empty()) { last = static_cast<ssize_t>(std::stoll(m.str(2))); } |
| |
| if (first != -1 && last != -1 && first > last) { |
| throw std::runtime_error("invalid range error"); |
| } |
| ranges.emplace_back(std::make_pair(first, last)); |
| } |
| }); |
| return true; |
| } |
| return false; |
| } catch (...) { return false; } |
| } |
| |
| inline std::string to_lower(const char *beg, const char *end) { |
| std::string out; |
| auto it = beg; |
| while (it != end) { |
| out += ::tolower(*it); |
| it++; |
| } |
| return out; |
| } |
| |
| inline std::string make_multipart_data_boundary() { |
| static const char data[] = |
| "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"; |
| |
| std::random_device seed_gen; |
| std::mt19937 engine(seed_gen()); |
| |
| std::string result = "--cpp-httplib-multipart-data-"; |
| |
| for (auto i = 0; i < 16; i++) { |
| result += data[engine() % (sizeof(data) - 1)]; |
| } |
| |
| return result; |
| } |
| |
| inline std::pair<size_t, size_t> |
| get_range_offset_and_length(const Request &req, size_t content_length, |
| size_t index) { |
| auto r = req.ranges[index]; |
| |
| if (r.first == -1 && r.second == -1) { |
| return std::make_pair(0, content_length); |
| } |
| |
| if (r.first == -1) { |
| r.first = content_length - r.second; |
| r.second = content_length - 1; |
| } |
| |
| if (r.second == -1) { r.second = content_length - 1; } |
| |
| return std::make_pair(r.first, r.second - r.first + 1); |
| } |
| |
| inline std::string make_content_range_header_field(size_t offset, |
| size_t length, |
| size_t content_length) { |
| std::string field = "bytes "; |
| field += std::to_string(offset); |
| field += "-"; |
| field += std::to_string(offset + length - 1); |
| field += "/"; |
| field += std::to_string(content_length); |
| return field; |
| } |
| |
| template <typename SToken, typename CToken, typename Content> |
| bool process_multipart_ranges_data(const Request &req, Response &res, |
| const std::string &boundary, |
| const std::string &content_type, |
| SToken stoken, CToken ctoken, |
| Content content) { |
| for (size_t i = 0; i < req.ranges.size(); i++) { |
| ctoken("--"); |
| stoken(boundary); |
| ctoken("\r\n"); |
| if (!content_type.empty()) { |
| ctoken("Content-Type: "); |
| stoken(content_type); |
| ctoken("\r\n"); |
| } |
| |
| auto offsets = detail::get_range_offset_and_length(req, res.body.size(), i); |
| auto offset = offsets.first; |
| auto length = offsets.second; |
| |
| ctoken("Content-Range: "); |
| stoken(make_content_range_header_field(offset, length, res.body.size())); |
| ctoken("\r\n"); |
| ctoken("\r\n"); |
| if (!content(offset, length)) { return false; } |
| ctoken("\r\n"); |
| } |
| |
| ctoken("--"); |
| stoken(boundary); |
| ctoken("--\r\n"); |
| |
| return true; |
| } |
| |
| inline std::string make_multipart_ranges_data(const Request &req, Response &res, |
| const std::string &boundary, |
| const std::string &content_type) { |
| std::string data; |
| |
| process_multipart_ranges_data( |
| req, res, boundary, content_type, |
| [&](const std::string &token) { data += token; }, |
| [&](const char *token) { data += token; }, |
| [&](size_t offset, size_t length) { |
| data += res.body.substr(offset, length); |
| return true; |
| }); |
| |
| return data; |
| } |
| |
| inline size_t |
| get_multipart_ranges_data_length(const Request &req, Response &res, |
| const std::string &boundary, |
| const std::string &content_type) { |
| size_t data_length = 0; |
| |
| process_multipart_ranges_data( |
| req, res, boundary, content_type, |
| [&](const std::string &token) { data_length += token.size(); }, |
| [&](const char *token) { data_length += strlen(token); }, |
| [&](size_t /*offset*/, size_t length) { |
| data_length += length; |
| return true; |
| }); |
| |
| return data_length; |
| } |
| |
| inline bool write_multipart_ranges_data(Stream &strm, const Request &req, |
| Response &res, |
| const std::string &boundary, |
| const std::string &content_type) { |
| return process_multipart_ranges_data( |
| req, res, boundary, content_type, |
| [&](const std::string &token) { strm.write(token); }, |
| [&](const char *token) { strm.write(token); }, |
| [&](size_t offset, size_t length) { |
| return detail::write_content(strm, res.content_provider, offset, |
| length) >= 0; |
| }); |
| } |
| |
| inline std::pair<size_t, size_t> |
| get_range_offset_and_length(const Request &req, const Response &res, |
| size_t index) { |
| auto r = req.ranges[index]; |
| |
| if (r.second == -1) { r.second = res.content_provider_resource_length - 1; } |
| |
| return std::make_pair(r.first, r.second - r.first + 1); |
| } |
| |
| #ifdef _WIN32 |
| class WSInit { |
| public: |
| WSInit() { |
| WSADATA wsaData; |
| WSAStartup(0x0002, &wsaData); |
| } |
| |
| ~WSInit() { WSACleanup(); } |
| }; |
| |
| static WSInit wsinit_; |
| #endif |
| |
| } // namespace detail |
| |
| // Header utilities |
| inline std::pair<std::string, std::string> make_range_header(Ranges ranges) { |
| std::string field = "bytes="; |
| auto i = 0; |
| for (auto r : ranges) { |
| if (i != 0) { field += ", "; } |
| if (r.first != -1) { field += std::to_string(r.first); } |
| field += '-'; |
| if (r.second != -1) { field += std::to_string(r.second); } |
| i++; |
| } |
| return std::make_pair("Range", field); |
| } |
| |
| inline std::pair<std::string, std::string> |
| make_basic_authentication_header(const std::string &username, |
| const std::string &password) { |
| auto field = "Basic " + detail::base64_encode(username + ":" + password); |
| return std::make_pair("Authorization", field); |
| } |
| |
| // Request implementation |
| inline bool Request::has_header(const char *key) const { |
| return detail::has_header(headers, key); |
| } |
| |
| inline std::string Request::get_header_value(const char *key, size_t id) const { |
| return detail::get_header_value(headers, key, id, ""); |
| } |
| |
| inline size_t Request::get_header_value_count(const char *key) const { |
| auto r = headers.equal_range(key); |
| return std::distance(r.first, r.second); |
| } |
| |
| inline void Request::set_header(const char *key, const char *val) { |
| headers.emplace(key, val); |
| } |
| |
| inline void Request::set_header(const char *key, const std::string &val) { |
| headers.emplace(key, val); |
| } |
| |
| inline bool Request::has_param(const char *key) const { |
| return params.find(key) != params.end(); |
| } |
| |
| inline std::string Request::get_param_value(const char *key, size_t id) const { |
| auto it = params.find(key); |
| std::advance(it, id); |
| if (it != params.end()) { return it->second; } |
| return std::string(); |
| } |
| |
| inline size_t Request::get_param_value_count(const char *key) const { |
| auto r = params.equal_range(key); |
| return std::distance(r.first, r.second); |
| } |
| |
| inline bool Request::has_file(const char *key) const { |
| return files.find(key) != files.end(); |
| } |
| |
| inline MultipartFile Request::get_file_value(const char *key) const { |
| auto it = files.find(key); |
| if (it != files.end()) { return it->second; } |
| return MultipartFile(); |
| } |
| |
| // Response implementation |
| inline bool Response::has_header(const char *key) const { |
| return headers.find(key) != headers.end(); |
| } |
| |
| inline std::string Response::get_header_value(const char *key, |
| size_t id) const { |
| return detail::get_header_value(headers, key, id, ""); |
| } |
| |
| inline size_t Response::get_header_value_count(const char *key) const { |
| auto r = headers.equal_range(key); |
| return std::distance(r.first, r.second); |
| } |
| |
| inline void Response::set_header(const char *key, const char *val) { |
| headers.emplace(key, val); |
| } |
| |
| inline void Response::set_header(const char *key, const std::string &val) { |
| headers.emplace(key, val); |
| } |
| |
| inline void Response::set_redirect(const char *url) { |
| set_header("Location", url); |
| status = 302; |
| } |
| |
| inline void Response::set_content(const char *s, size_t n, |
| const char *content_type) { |
| body.assign(s, n); |
| set_header("Content-Type", content_type); |
| } |
| |
| inline void Response::set_content(const std::string &s, |
| const char *content_type) { |
| body = s; |
| set_header("Content-Type", content_type); |
| } |
| |
| inline void Response::set_content_provider( |
| size_t length, |
| std::function<void(size_t offset, size_t length, DataSink sink)> provider, |
| std::function<void()> resource_releaser) { |
| assert(length > 0); |
| content_provider_resource_length = length; |
| content_provider = [provider](size_t offset, size_t length, DataSink sink, |
| Done) { provider(offset, length, sink); }; |
| content_provider_resource_releaser = resource_releaser; |
| } |
| |
| inline void Response::set_chunked_content_provider( |
| std::function<void(size_t offset, DataSink sink, Done done)> provider, |
| std::function<void()> resource_releaser) { |
| content_provider_resource_length = 0; |
| content_provider = [provider](size_t offset, size_t, DataSink sink, Done done) { |
| provider(offset, sink, done); |
| }; |
| content_provider_resource_releaser = resource_releaser; |
| } |
| |
| // Rstream implementation |
| template <typename... Args> |
| inline int Stream::write_format(const char *fmt, const Args &... args) { |
| const auto bufsiz = 2048; |
| char buf[bufsiz]; |
| |
| #if defined(_MSC_VER) && _MSC_VER < 1900 |
| auto n = _snprintf_s(buf, bufsiz, bufsiz - 1, fmt, args...); |
| #else |
| auto n = snprintf(buf, bufsiz - 1, fmt, args...); |
| #endif |
| if (n <= 0) { return n; } |
| |
| if (n >= bufsiz - 1) { |
| std::vector<char> glowable_buf(bufsiz); |
| |
| while (n >= static_cast<int>(glowable_buf.size() - 1)) { |
| glowable_buf.resize(glowable_buf.size() * 2); |
| #if defined(_MSC_VER) && _MSC_VER < 1900 |
| n = _snprintf_s(&glowable_buf[0], glowable_buf.size(), |
| glowable_buf.size() - 1, fmt, args...); |
| #else |
| n = snprintf(&glowable_buf[0], glowable_buf.size() - 1, fmt, args...); |
| #endif |
| } |
| return write(&glowable_buf[0], n); |
| } else { |
| return write(buf, n); |
| } |
| } |
| |
| // Socket stream implementation |
| inline SocketStream::SocketStream(socket_t sock) : sock_(sock) {} |
| |
| inline SocketStream::~SocketStream() {} |
| |
| inline int SocketStream::read(char *ptr, size_t size) { |
| if (detail::select_read(sock_, CPPHTTPLIB_READ_TIMEOUT_SECOND, |
| CPPHTTPLIB_READ_TIMEOUT_USECOND) > 0) { |
| return recv(sock_, ptr, static_cast<int>(size), 0); |
| } |
| return -1; |
| } |
| |
| inline int SocketStream::write(const char *ptr, size_t size) { |
| return send(sock_, ptr, static_cast<int>(size), 0); |
| } |
| |
| inline int SocketStream::write(const char *ptr) { |
| return write(ptr, strlen(ptr)); |
| } |
| |
| inline int SocketStream::write(const std::string &s) { |
| return write(s.data(), s.size()); |
| } |
| |
| inline std::string SocketStream::get_remote_addr() const { |
| return detail::get_remote_addr(sock_); |
| } |
| |
| // Buffer stream implementation |
| inline int BufferStream::read(char *ptr, size_t size) { |
| #if defined(_MSC_VER) && _MSC_VER < 1900 |
| return static_cast<int>(buffer._Copy_s(ptr, size, size)); |
| #else |
| return static_cast<int>(buffer.copy(ptr, size)); |
| #endif |
| } |
| |
| inline int BufferStream::write(const char *ptr, size_t size) { |
| buffer.append(ptr, size); |
| return static_cast<int>(size); |
| } |
| |
| inline int BufferStream::write(const char *ptr) { |
| return write(ptr, strlen(ptr)); |
| } |
| |
| inline int BufferStream::write(const std::string &s) { |
| return write(s.data(), s.size()); |
| } |
| |
| inline std::string BufferStream::get_remote_addr() const { return ""; } |
| |
| inline const std::string &BufferStream::get_buffer() const { return buffer; } |
| |
| // HTTP server implementation |
| inline Server::Server() |
| : keep_alive_max_count_(CPPHTTPLIB_KEEPALIVE_MAX_COUNT), |
| payload_max_length_(CPPHTTPLIB_PAYLOAD_MAX_LENGTH), is_running_(false), |
| svr_sock_(INVALID_SOCKET) { |
| #ifndef _WIN32 |
| signal(SIGPIPE, SIG_IGN); |
| #endif |
| new_task_queue = [] { |
| #if CPPHTTPLIB_THREAD_POOL_COUNT > 0 |
| return new ThreadPool(CPPHTTPLIB_THREAD_POOL_COUNT); |
| #else |
| return new Threads(); |
| #endif |
| }; |
| } |
| |
| inline Server::~Server() {} |
| |
| inline Server &Server::Get(const char *pattern, Handler handler) { |
| get_handlers_.push_back(std::make_pair(std::regex(pattern), handler)); |
| return *this; |
| } |
| |
| inline Server &Server::Post(const char *pattern, Handler handler) { |
| post_handlers_.push_back(std::make_pair(std::regex(pattern), handler)); |
| return *this; |
| } |
| |
| inline Server &Server::Put(const char *pattern, Handler handler) { |
| put_handlers_.push_back(std::make_pair(std::regex(pattern), handler)); |
| return *this; |
| } |
| |
| inline Server &Server::Patch(const char *pattern, Handler handler) { |
| patch_handlers_.push_back(std::make_pair(std::regex(pattern), handler)); |
| return *this; |
| } |
| |
| inline Server &Server::Delete(const char *pattern, Handler handler) { |
| delete_handlers_.push_back(std::make_pair(std::regex(pattern), handler)); |
| return *this; |
| } |
| |
| inline Server &Server::Options(const char *pattern, Handler handler) { |
| options_handlers_.push_back(std::make_pair(std::regex(pattern), handler)); |
| return *this; |
| } |
| |
| inline bool Server::set_base_dir(const char *path) { |
| if (detail::is_dir(path)) { |
| base_dir_ = path; |
| return true; |
| } |
| return false; |
| } |
| |
| inline void Server::set_file_request_handler(Handler handler) { |
| file_request_handler_ = handler; |
| } |
| |
| inline void Server::set_error_handler(Handler handler) { |
| error_handler_ = handler; |
| } |
| |
| inline void Server::set_logger(Logger logger) { logger_ = logger; } |
| |
| inline void Server::set_keep_alive_max_count(size_t count) { |
| keep_alive_max_count_ = count; |
| } |
| |
| inline void Server::set_payload_max_length(size_t length) { |
| payload_max_length_ = length; |
| } |
| |
| inline int Server::bind_to_any_port(const char *host, int socket_flags) { |
| return bind_internal(host, 0, socket_flags); |
| } |
| |
| inline bool Server::listen_after_bind() { return listen_internal(); } |
| |
| inline bool Server::listen(const char *host, int port, int socket_flags) { |
| if (bind_internal(host, port, socket_flags) < 0) return false; |
| return listen_internal(); |
| } |
| |
| inline bool Server::is_running() const { return is_running_; } |
| |
| inline void Server::stop() { |
| if (is_running_) { |
| assert(svr_sock_ != INVALID_SOCKET); |
| std::atomic<socket_t> sock(svr_sock_.exchange(INVALID_SOCKET)); |
| detail::shutdown_socket(sock); |
| detail::close_socket(sock); |
| } |
| } |
| |
| inline bool Server::parse_request_line(const char *s, Request &req) { |
| static std::regex re("(GET|HEAD|POST|PUT|PATCH|DELETE|OPTIONS) " |
| "(([^?]+)(?:\\?(.+?))?) (HTTP/1\\.[01])\r\n"); |
| |
| std::cmatch m; |
| if (std::regex_match(s, m, re)) { |
| req.version = std::string(m[5]); |
| req.method = std::string(m[1]); |
| req.target = std::string(m[2]); |
| req.path = detail::decode_url(m[3]); |
| |
| // Parse query text |
| auto len = std::distance(m[4].first, m[4].second); |
| if (len > 0) { detail::parse_query_text(m[4], req.params); } |
| |
| return true; |
| } |
| |
| return false; |
| } |
| |
| inline bool Server::write_response(Stream &strm, bool last_connection, |
| const Request &req, Response &res) { |
| assert(res.status != -1); |
| |
| if (400 <= res.status && error_handler_) { error_handler_(req, res); } |
| |
| // Response line |
| if (!strm.write_format("HTTP/1.1 %d %s\r\n", res.status, |
| detail::status_message(res.status))) { |
| return false; |
| } |
| |
| // Headers |
| if (last_connection || req.get_header_value("Connection") == "close") { |
| res.set_header("Connection", "close"); |
| } |
| |
| if (!last_connection && req.get_header_value("Connection") == "Keep-Alive") { |
| res.set_header("Connection", "Keep-Alive"); |
| } |
| |
| if (!res.has_header("Content-Type")) { |
| res.set_header("Content-Type", "text/plain"); |
| } |
| |
| if (!res.has_header("Accept-Ranges")) { |
| res.set_header("Accept-Ranges", "bytes"); |
| } |
| |
| std::string content_type; |
| std::string boundary; |
| |
| if (req.ranges.size() > 1) { |
| boundary = detail::make_multipart_data_boundary(); |
| |
| auto it = res.headers.find("Content-Type"); |
| if (it != res.headers.end()) { |
| content_type = it->second; |
| res.headers.erase(it); |
| } |
| |
| res.headers.emplace("Content-Type", |
| "multipart/byteranges; boundary=" + boundary); |
| } |
| |
| if (res.body.empty()) { |
| if (res.content_provider_resource_length > 0) { |
| size_t length = 0; |
| if (req.ranges.empty()) { |
| length = res.content_provider_resource_length; |
| } else if (req.ranges.size() == 1) { |
| auto offsets = detail::get_range_offset_and_length( |
| req, res.content_provider_resource_length, 0); |
| auto offset = offsets.first; |
| length = offsets.second; |
| auto content_range = detail::make_content_range_header_field( |
| offset, length, res.content_provider_resource_length); |
| res.set_header("Content-Range", content_range); |
| } else { |
| length = detail::get_multipart_ranges_data_length(req, res, boundary, |
| content_type); |
| } |
| res.set_header("Content-Length", std::to_string(length)); |
| } else { |
| if (res.content_provider) { |
| res.set_header("Transfer-Encoding", "chunked"); |
| } else { |
| res.set_header("Content-Length", "0"); |
| } |
| } |
| } else { |
| if (req.ranges.empty()) { |
| ; |
| } else if (req.ranges.size() == 1) { |
| auto offsets = |
| detail::get_range_offset_and_length(req, res.body.size(), 0); |
| auto offset = offsets.first; |
| auto length = offsets.second; |
| auto content_range = detail::make_content_range_header_field( |
| offset, length, res.body.size()); |
| res.set_header("Content-Range", content_range); |
| res.body = res.body.substr(offset, length); |
| } else { |
| res.body = |
| detail::make_multipart_ranges_data(req, res, boundary, content_type); |
| } |
| |
| #ifdef CPPHTTPLIB_ZLIB_SUPPORT |
| // TODO: 'Accpet-Encoding' has gzip, not gzip;q=0 |
| const auto &encodings = req.get_header_value("Accept-Encoding"); |
| if (encodings.find("gzip") != std::string::npos && |
| detail::can_compress(res.get_header_value("Content-Type"))) { |
| if (detail::compress(res.body)) { |
| res.set_header("Content-Encoding", "gzip"); |
| } |
| } |
| #endif |
| |
| auto length = std::to_string(res.body.size()); |
| res.set_header("Content-Length", length); |
| } |
| |
| if (!detail::write_headers(strm, res)) { return false; } |
| |
| // Body |
| if (req.method != "HEAD") { |
| if (!res.body.empty()) { |
| if (!strm.write(res.body)) { return false; } |
| } else if (res.content_provider) { |
| if (!write_content_with_provider(strm, req, res, boundary, |
| content_type)) { |
| return false; |
| } |
| } |
| } |
| |
| // Log |
| if (logger_) { logger_(req, res); } |
| |
| return true; |
| } |
| |
| inline bool |
| Server::write_content_with_provider(Stream &strm, const Request &req, |
| Response &res, const std::string &boundary, |
| const std::string &content_type) { |
| if (res.content_provider_resource_length) { |
| if (req.ranges.empty()) { |
| if (detail::write_content(strm, res.content_provider, 0, |
| res.content_provider_resource_length) < 0) { |
| return false; |
| } |
| } else if (req.ranges.size() == 1) { |
| auto offsets = detail::get_range_offset_and_length( |
| req, res.content_provider_resource_length, 0); |
| auto offset = offsets.first; |
| auto length = offsets.second; |
| if (detail::write_content(strm, res.content_provider, offset, length) < |
| 0) { |
| return false; |
| } |
| } else { |
| if (!detail::write_multipart_ranges_data(strm, req, res, boundary, |
| content_type)) { |
| return false; |
| } |
| } |
| } else { |
| if (detail::write_content_chunked(strm, res.content_provider) < 0) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| inline bool Server::handle_file_request(Request &req, Response &res) { |
| if (!base_dir_.empty() && detail::is_valid_path(req.path)) { |
| std::string path = base_dir_ + req.path; |
| |
| if (!path.empty() && path.back() == '/') { path += "index.html"; } |
| |
| if (detail::is_file(path)) { |
| detail::read_file(path, res.body); |
| auto type = detail::find_content_type(path); |
| if (type) { res.set_header("Content-Type", type); } |
| res.status = 200; |
| if (file_request_handler_) { file_request_handler_(req, res); } |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| |
| inline socket_t Server::create_server_socket(const char *host, int port, |
| int socket_flags) const { |
| return detail::create_socket( |
| host, port, |
| [](socket_t sock, struct addrinfo &ai) -> bool { |
| if (::bind(sock, ai.ai_addr, static_cast<int>(ai.ai_addrlen))) { |
| return false; |
| } |
| if (::listen(sock, 5)) { // Listen through 5 channels |
| return false; |
| } |
| return true; |
| }, |
| socket_flags); |
| } |
| |
| inline int Server::bind_internal(const char *host, int port, int socket_flags) { |
| if (!is_valid()) { return -1; } |
| |
| svr_sock_ = create_server_socket(host, port, socket_flags); |
| if (svr_sock_ == INVALID_SOCKET) { return -1; } |
| |
| if (port == 0) { |
| struct sockaddr_storage address; |
| socklen_t len = sizeof(address); |
| if (getsockname(svr_sock_, reinterpret_cast<struct sockaddr *>(&address), |
| &len) == -1) { |
| return -1; |
| } |
| if (address.ss_family == AF_INET) { |
| return ntohs(reinterpret_cast<struct sockaddr_in *>(&address)->sin_port); |
| } else if (address.ss_family == AF_INET6) { |
| return ntohs( |
| reinterpret_cast<struct sockaddr_in6 *>(&address)->sin6_port); |
| } else { |
| return -1; |
| } |
| } else { |
| return port; |
| } |
| } |
| |
| inline bool Server::listen_internal() { |
| auto ret = true; |
| is_running_ = true; |
| |
| { |
| std::unique_ptr<TaskQueue> task_queue(new_task_queue()); |
| |
| for (;;) { |
| if (svr_sock_ == INVALID_SOCKET) { |
| // The server socket was closed by 'stop' method. |
| break; |
| } |
| |
| auto val = detail::select_read(svr_sock_, 0, 100000); |
| |
| if (val == 0) { // Timeout |
| continue; |
| } |
| |
| socket_t sock = accept(svr_sock_, nullptr, nullptr); |
| |
| if (sock == INVALID_SOCKET) { |
| if (svr_sock_ != INVALID_SOCKET) { |
| detail::close_socket(svr_sock_); |
| ret = false; |
| } else { |
| ; // The server socket was closed by user. |
| } |
| break; |
| } |
| |
| task_queue->enqueue([=]() { process_and_close_socket(sock); }); |
| } |
| |
| task_queue->shutdown(); |
| } |
| |
| is_running_ = false; |
| return ret; |
| } |
| |
| inline bool Server::routing(Request &req, Response &res) { |
| if (req.method == "GET" && handle_file_request(req, res)) { return true; } |
| |
| if (req.method == "GET" || req.method == "HEAD") { |
| return dispatch_request(req, res, get_handlers_); |
| } else if (req.method == "POST") { |
| return dispatch_request(req, res, post_handlers_); |
| } else if (req.method == "PUT") { |
| return dispatch_request(req, res, put_handlers_); |
| } else if (req.method == "PATCH") { |
| return dispatch_request(req, res, patch_handlers_); |
| } else if (req.method == "DELETE") { |
| return dispatch_request(req, res, delete_handlers_); |
| } else if (req.method == "OPTIONS") { |
| return dispatch_request(req, res, options_handlers_); |
| } |
| return false; |
| } |
| |
| inline bool Server::dispatch_request(Request &req, Response &res, |
| Handlers &handlers) { |
| for (const auto &x : handlers) { |
| const auto &pattern = x.first; |
| const auto &handler = x.second; |
| |
| if (std::regex_match(req.path, req.matches, pattern)) { |
| handler(req, res); |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| inline bool |
| Server::process_request(Stream &strm, bool last_connection, |
| bool &connection_close, |
| std::function<void(Request &)> setup_request) { |
| const auto bufsiz = 2048; |
| char buf[bufsiz]; |
| |
| detail::stream_line_reader reader(strm, buf, bufsiz); |
| |
| // Connection has been closed on client |
| if (!reader.getline()) { return false; } |
| |
| Request req; |
| Response res; |
| |
| res.version = "HTTP/1.1"; |
| |
| // Check if the request URI doesn't exceed the limit |
| if (reader.size() > CPPHTTPLIB_REQUEST_URI_MAX_LENGTH) { |
| Headers dummy; |
| detail::read_headers(strm, dummy); |
| res.status = 414; |
| return write_response(strm, last_connection, req, res); |
| } |
| |
| // Request line and headers |
| if (!parse_request_line(reader.ptr(), req) || |
| !detail::read_headers(strm, req.headers)) { |
| res.status = 400; |
| return write_response(strm, last_connection, req, res); |
| } |
| |
| if (req.get_header_value("Connection") == "close") { |
| connection_close = true; |
| } |
| |
| if (req.version == "HTTP/1.0" && |
| req.get_header_value("Connection") != "Keep-Alive") { |
| connection_close = true; |
| } |
| |
| req.set_header("REMOTE_ADDR", strm.get_remote_addr()); |
| |
| // Body |
| if (req.method == "POST" || req.method == "PUT" || req.method == "PATCH") { |
| if (!detail::read_content(strm, req, payload_max_length_, res.status, |
| Progress(), [&](const char *buf, size_t n) { |
| if (req.body.size() + n > req.body.max_size()) { |
| return false; |
| } |
| req.body.append(buf, n); |
| return true; |
| })) { |
| return write_response(strm, last_connection, req, res); |
| } |
| |
| const auto &content_type = req.get_header_value("Content-Type"); |
| |
| if (!content_type.find("application/x-www-form-urlencoded")) { |
| detail::parse_query_text(req.body, req.params); |
| } else if (!content_type.find("multipart/form-data")) { |
| std::string boundary; |
| if (!detail::parse_multipart_boundary(content_type, boundary) || |
| !detail::parse_multipart_formdata(boundary, req.body, req.files)) { |
| res.status = 400; |
| return write_response(strm, last_connection, req, res); |
| } |
| } |
| } |
| |
| if (req.has_header("Range")) { |
| const auto &range_header_value = req.get_header_value("Range"); |
| if (!detail::parse_range_header(range_header_value, req.ranges)) { |
| // TODO: error |
| } |
| } |
| |
| if (setup_request) { setup_request(req); } |
| |
| if (routing(req, res)) { |
| if (res.status == -1) { res.status = req.ranges.empty() ? 200 : 206; } |
| } else { |
| res.status = 404; |
| } |
| |
| return write_response(strm, last_connection, req, res); |
| } |
| |
| inline bool Server::is_valid() const { return true; } |
| |
| inline bool Server::process_and_close_socket(socket_t sock) { |
| return detail::process_and_close_socket( |
| false, sock, keep_alive_max_count_, |
| [this](Stream &strm, bool last_connection, bool &connection_close) { |
| return process_request(strm, last_connection, connection_close, |
| nullptr); |
| }); |
| } |
| |
| // HTTP client implementation |
| inline Client::Client(const char *host, int port, time_t timeout_sec) |
| : host_(host), port_(port), timeout_sec_(timeout_sec), |
| host_and_port_(host_ + ":" + std::to_string(port_)), |
| keep_alive_max_count_(CPPHTTPLIB_KEEPALIVE_MAX_COUNT) {} |
| |
| inline Client::~Client() {} |
| |
| inline bool Client::is_valid() const { return true; } |
| |
| inline socket_t Client::create_client_socket() const { |
| return detail::create_socket( |
| host_.c_str(), port_, [=](socket_t sock, struct addrinfo &ai) -> bool { |
| detail::set_nonblocking(sock, true); |
| |
| auto ret = connect(sock, ai.ai_addr, static_cast<int>(ai.ai_addrlen)); |
| if (ret < 0) { |
| if (detail::is_connection_error() || |
| !detail::wait_until_socket_is_ready(sock, timeout_sec_, 0)) { |
| detail::close_socket(sock); |
| return false; |
| } |
| } |
| |
| detail::set_nonblocking(sock, false); |
| return true; |
| }); |
| } |
| |
| inline bool Client::read_response_line(Stream &strm, Response &res) { |
| const auto bufsiz = 2048; |
| char buf[bufsiz]; |
| |
| detail::stream_line_reader reader(strm, buf, bufsiz); |
| |
| if (!reader.getline()) { return false; } |
| |
| const static std::regex re("(HTTP/1\\.[01]) (\\d+?) .*\r\n"); |
| |
| std::cmatch m; |
| if (std::regex_match(reader.ptr(), m, re)) { |
| res.version = std::string(m[1]); |
| res.status = std::stoi(std::string(m[2])); |
| } |
| |
| return true; |
| } |
| |
| inline bool Client::send(Request &req, Response &res) { |
| if (req.path.empty()) { return false; } |
| |
| auto sock = create_client_socket(); |
| if (sock == INVALID_SOCKET) { return false; } |
| |
| return process_and_close_socket( |
| sock, 1, |
| [&](Stream &strm, bool /*last_connection*/, bool &connection_close) { |
| return process_request(strm, req, res, connection_close); |
| }); |
| } |
| |
| inline bool Client::send(std::vector<Request> &requests, std::vector<Response>& responses) { |
| size_t i = 0; |
| while (i < requests.size()) { |
| auto sock = create_client_socket(); |
| if (sock == INVALID_SOCKET) { return false; } |
| |
| if (!process_and_close_socket( |
| sock, requests.size() - i, |
| [&](Stream &strm, bool last_connection, bool &connection_close) { |
| auto &req = requests[i]; |
| auto res = Response(); |
| i++; |
| |
| if (req.path.empty()) { return false; } |
| if (last_connection) { req.set_header("Connection", "close"); } |
| auto ret = process_request(strm, req, res, connection_close); |
| if (ret) { responses.emplace_back(std::move(res)); } |
| return ret; |
| })) { |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| inline void Client::write_request(Stream &strm, Request &req) { |
| BufferStream bstrm; |
| |
| // Request line |
| auto path = detail::encode_url(req.path); |
| |
| bstrm.write_format("%s %s HTTP/1.1\r\n", req.method.c_str(), path.c_str()); |
| |
| // Headers |
| 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", "*/*"); } |
| |
| if (!req.has_header("User-Agent")) { |
| req.set_header("User-Agent", "cpp-httplib/0.2"); |
| } |
| |
| if (req.body.empty()) { |
| 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); |
| } |
| } |
| |
| detail::write_headers(bstrm, req); |
| |
| // Body |
| if (!req.body.empty()) { bstrm.write(req.body); } |
| |
| // Flush buffer |
| auto &data = bstrm.get_buffer(); |
| strm.write(data.data(), data.size()); |
| } |
| |
| inline bool Client::process_request(Stream &strm, Request &req, Response &res, |
| bool &connection_close) { |
| // Send request |
| write_request(strm, req); |
| |
| // Receive response and headers |
| if (!read_response_line(strm, res) || |
| !detail::read_headers(strm, res.headers)) { |
| return false; |
| } |
| |
| if (res.get_header_value("Connection") == "close" || |
| res.version == "HTTP/1.0") { |
| connection_close = true; |
| } |
| |
| // Body |
| if (req.method != "HEAD") { |
| detail::ContentReceiverCore out = [&](const char *buf, size_t n) { |
| if (res.body.size() + n > res.body.max_size()) { |
| return false; |
| } |
| res.body.append(buf, n); |
| return true; |
| }; |
| |
| if (req.content_receiver) { |
| auto offset = std::make_shared<size_t>(); |
| auto length = get_header_value_uint64(res.headers, "Content-Length", 0); |
| auto receiver = req.content_receiver; |
| out = [offset, length, receiver](const char *buf, size_t n) { |
| auto ret = receiver(buf, n, *offset, length); |
| (*offset) += n; |
| return ret; |
| }; |
| } |
| |
| int dummy_status; |
| if (!detail::read_content(strm, res, std::numeric_limits<size_t>::max(), |
| dummy_status, req.progress, out)) { |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| inline bool Client::process_and_close_socket( |
| socket_t sock, size_t request_count, |
| std::function<bool(Stream &strm, bool last_connection, |
| bool &connection_close)> |
| callback) { |
| request_count = std::min(request_count, keep_alive_max_count_); |
| return detail::process_and_close_socket(true, sock, request_count, callback); |
| } |
| |
| inline bool Client::is_ssl() const { return false; } |
| |
| inline std::shared_ptr<Response> Client::Get(const char *path, |
| Progress progress) { |
| return Get(path, Headers(), progress); |
| } |
| |
| inline std::shared_ptr<Response> |
| Client::Get(const char *path, const Headers &headers, Progress progress) { |
| Request req; |
| req.method = "GET"; |
| req.path = path; |
| req.headers = headers; |
| req.progress = progress; |
| |
| auto res = std::make_shared<Response>(); |
| return send(req, *res) ? res : nullptr; |
| } |
| |
| inline std::shared_ptr<Response> Client::Get(const char *path, |
| ContentReceiver content_receiver, |
| Progress progress) { |
| return Get(path, Headers(), content_receiver, progress); |
| } |
| |
| inline std::shared_ptr<Response> Client::Get(const char *path, |
| const Headers &headers, |
| ContentReceiver content_receiver, |
| Progress progress) { |
| Request req; |
| req.method = "GET"; |
| req.path = path; |
| req.headers = headers; |
| req.content_receiver = content_receiver; |
| req.progress = progress; |
| |
| auto res = std::make_shared<Response>(); |
| return send(req, *res) ? res : nullptr; |
| } |
| |
| inline std::shared_ptr<Response> Client::Head(const char *path) { |
| return Head(path, Headers()); |
| } |
| |
| inline std::shared_ptr<Response> Client::Head(const char *path, |
| const Headers &headers) { |
| Request req; |
| req.method = "HEAD"; |
| req.headers = headers; |
| req.path = path; |
| |
| auto res = std::make_shared<Response>(); |
| |
| return send(req, *res) ? res : nullptr; |
| } |
| |
| inline std::shared_ptr<Response> Client::Post(const char *path, |
| const std::string &body, |
| const char *content_type) { |
| return Post(path, Headers(), body, content_type); |
| } |
| |
| inline std::shared_ptr<Response> Client::Post(const char *path, |
| const Headers &headers, |
| const std::string &body, |
| const char *content_type) { |
| Request req; |
| req.method = "POST"; |
| req.headers = headers; |
| req.path = path; |
| |
| req.headers.emplace("Content-Type", content_type); |
| req.body = body; |
| |
| auto res = std::make_shared<Response>(); |
| |
| return send(req, *res) ? res : nullptr; |
| } |
| |
| inline std::shared_ptr<Response> Client::Post(const char *path, |
| const Params ¶ms) { |
| return Post(path, Headers(), params); |
| } |
| |
| inline std::shared_ptr<Response> |
| Client::Post(const char *path, const Headers &headers, const Params ¶ms) { |
| std::string query; |
| for (auto it = params.begin(); it != params.end(); ++it) { |
| if (it != params.begin()) { query += "&"; } |
| query += it->first; |
| query += "="; |
| query += detail::encode_url(it->second); |
| } |
| |
| return Post(path, headers, query, "application/x-www-form-urlencoded"); |
| } |
| |
| inline std::shared_ptr<Response> |
| Client::Post(const char *path, const MultipartFormDataItems &items) { |
| return Post(path, Headers(), items); |
| } |
| |
| inline std::shared_ptr<Response> |
| Client::Post(const char *path, const Headers &headers, |
| const MultipartFormDataItems &items) { |
| Request req; |
| req.method = "POST"; |
| req.headers = headers; |
| req.path = path; |
| |
| auto boundary = detail::make_multipart_data_boundary(); |
| |
| req.headers.emplace("Content-Type", |
| "multipart/form-data; boundary=" + boundary); |
| |
| for (const auto &item : items) { |
| req.body += "--" + boundary + "\r\n"; |
| req.body += "Content-Disposition: form-data; name=\"" + item.name + "\""; |
| if (!item.filename.empty()) { |
| req.body += "; filename=\"" + item.filename + "\""; |
| } |
| req.body += "\r\n"; |
| if (!item.content_type.empty()) { |
| req.body += "Content-Type: " + item.content_type + "\r\n"; |
| } |
| req.body += "\r\n"; |
| req.body += item.content + "\r\n"; |
| } |
| |
| req.body += "--" + boundary + "--\r\n"; |
| |
| auto res = std::make_shared<Response>(); |
| |
| return send(req, *res) ? res : nullptr; |
| } |
| |
| inline std::shared_ptr<Response> Client::Put(const char *path, |
| const std::string &body, |
| const char *content_type) { |
| return Put(path, Headers(), body, content_type); |
| } |
| |
| inline std::shared_ptr<Response> Client::Put(const char *path, |
| const Headers &headers, |
| const std::string &body, |
| const char *content_type) { |
| Request req; |
| req.method = "PUT"; |
| req.headers = headers; |
| req.path = path; |
| |
| req.headers.emplace("Content-Type", content_type); |
| req.body = body; |
| |
| auto res = std::make_shared<Response>(); |
| |
| return send(req, *res) ? res : nullptr; |
| } |
| |
| inline std::shared_ptr<Response> Client::Patch(const char *path, |
| const std::string &body, |
| const char *content_type) { |
| return Patch(path, Headers(), body, content_type); |
| } |
| |
| inline std::shared_ptr<Response> Client::Patch(const char *path, |
| const Headers &headers, |
| const std::string &body, |
| const char *content_type) { |
| Request req; |
| req.method = "PATCH"; |
| req.headers = headers; |
| req.path = path; |
| |
| req.headers.emplace("Content-Type", content_type); |
| req.body = body; |
| |
| auto res = std::make_shared<Response>(); |
| |
| return send(req, *res) ? res : nullptr; |
| } |
| |
| inline std::shared_ptr<Response> Client::Delete(const char *path, |
| const std::string &body, |
| const char *content_type) { |
| return Delete(path, Headers(), body, content_type); |
| } |
| |
| inline std::shared_ptr<Response> Client::Delete(const char *path, |
| const Headers &headers, |
| const std::string &body, |
| const char *content_type) { |
| Request req; |
| req.method = "DELETE"; |
| req.headers = headers; |
| req.path = path; |
| |
| if (content_type) { req.headers.emplace("Content-Type", content_type); } |
| req.body = body; |
| |
| auto res = std::make_shared<Response>(); |
| |
| return send(req, *res) ? res : nullptr; |
| } |
| |
| inline std::shared_ptr<Response> Client::Options(const char *path) { |
| return Options(path, Headers()); |
| } |
| |
| inline std::shared_ptr<Response> Client::Options(const char *path, |
| const Headers &headers) { |
| Request req; |
| req.method = "OPTIONS"; |
| req.path = path; |
| req.headers = headers; |
| |
| auto res = std::make_shared<Response>(); |
| |
| return send(req, *res) ? res : nullptr; |
| } |
| |
| inline void Client::set_keep_alive_max_count(size_t count) { |
| keep_alive_max_count_ = count; |
| } |
| |
| /* |
| * SSL Implementation |
| */ |
| #ifdef CPPHTTPLIB_OPENSSL_SUPPORT |
| namespace detail { |
| |
| template <typename U, typename V, typename T> |
| inline bool process_and_close_socket_ssl(bool is_client_request, socket_t sock, |
| size_t keep_alive_max_count, |
| SSL_CTX *ctx, std::mutex &ctx_mutex, |
| U SSL_connect_or_accept, V setup, |
| T callback) { |
| assert(keep_alive_max_count > 0); |
| |
| SSL *ssl = nullptr; |
| { |
| std::lock_guard<std::mutex> guard(ctx_mutex); |
| ssl = SSL_new(ctx); |
| } |
| |
| if (!ssl) { |
| close_socket(sock); |
| return false; |
| } |
| |
| auto bio = BIO_new_socket(sock, BIO_NOCLOSE); |
| SSL_set_bio(ssl, bio, bio); |
| |
| if (!setup(ssl)) { |
| SSL_shutdown(ssl); |
| { |
| std::lock_guard<std::mutex> guard(ctx_mutex); |
| SSL_free(ssl); |
| } |
| |
| close_socket(sock); |
| return false; |
| } |
| |
| bool ret = false; |
| |
| if (SSL_connect_or_accept(ssl) == 1) { |
| if (keep_alive_max_count > 1) { |
| auto count = keep_alive_max_count; |
| while (count > 0 && |
| (is_client_request || |
| detail::select_read(sock, CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND, |
| CPPHTTPLIB_KEEPALIVE_TIMEOUT_USECOND) > 0)) { |
| SSLSocketStream strm(sock, ssl); |
| auto last_connection = count == 1; |
| auto connection_close = false; |
| |
| ret = callback(ssl, strm, last_connection, connection_close); |
| if (!ret || connection_close) { break; } |
| |
| count--; |
| } |
| } else { |
| SSLSocketStream strm(sock, ssl); |
| auto dummy_connection_close = false; |
| ret = callback(ssl, strm, true, dummy_connection_close); |
| } |
| } |
| |
| SSL_shutdown(ssl); |
| { |
| std::lock_guard<std::mutex> guard(ctx_mutex); |
| SSL_free(ssl); |
| } |
| |
| close_socket(sock); |
| |
| return ret; |
| } |
| |
| #if OPENSSL_VERSION_NUMBER < 0x10100000L |
| static std::shared_ptr<std::vector<std::mutex>> openSSL_locks_; |
| |
| class SSLThreadLocks { |
| public: |
| SSLThreadLocks() { |
| openSSL_locks_ = |
| std::make_shared<std::vector<std::mutex>>(CRYPTO_num_locks()); |
| CRYPTO_set_locking_callback(locking_callback); |
| } |
| |
| ~SSLThreadLocks() { CRYPTO_set_locking_callback(nullptr); } |
| |
| private: |
| static void locking_callback(int mode, int type, const char * /*file*/, |
| int /*line*/) { |
| auto &locks = *openSSL_locks_; |
| if (mode & CRYPTO_LOCK) { |
| locks[type].lock(); |
| } else { |
| locks[type].unlock(); |
| } |
| } |
| }; |
| |
| #endif |
| |
| class SSLInit { |
| public: |
| SSLInit() { |
| SSL_load_error_strings(); |
| SSL_library_init(); |
| } |
| |
| ~SSLInit() { ERR_free_strings(); } |
| |
| private: |
| #if OPENSSL_VERSION_NUMBER < 0x10100000L |
| SSLThreadLocks thread_init_; |
| #endif |
| }; |
| |
| static SSLInit sslinit_; |
| |
| } // namespace detail |
| |
| // SSL socket stream implementation |
| inline SSLSocketStream::SSLSocketStream(socket_t sock, SSL *ssl) |
| : sock_(sock), ssl_(ssl) {} |
| |
| inline SSLSocketStream::~SSLSocketStream() {} |
| |
| inline int SSLSocketStream::read(char *ptr, size_t size) { |
| if (SSL_pending(ssl_) > 0 || |
| detail::select_read(sock_, CPPHTTPLIB_READ_TIMEOUT_SECOND, |
| CPPHTTPLIB_READ_TIMEOUT_USECOND) > 0) { |
| return SSL_read(ssl_, ptr, size); |
| } |
| return -1; |
| } |
| |
| inline int SSLSocketStream::write(const char *ptr, size_t size) { |
| return SSL_write(ssl_, ptr, size); |
| } |
| |
| inline int SSLSocketStream::write(const char *ptr) { |
| return write(ptr, strlen(ptr)); |
| } |
| |
| inline int SSLSocketStream::write(const std::string &s) { |
| return write(s.data(), s.size()); |
| } |
| |
| inline std::string SSLSocketStream::get_remote_addr() const { |
| return detail::get_remote_addr(sock_); |
| } |
| |
| // SSL HTTP server implementation |
| inline SSLServer::SSLServer(const char *cert_path, const char *private_key_path, |
| const char *client_ca_cert_file_path, |
| const char *client_ca_cert_dir_path) { |
| ctx_ = SSL_CTX_new(SSLv23_server_method()); |
| |
| if (ctx_) { |
| SSL_CTX_set_options(ctx_, |
| SSL_OP_ALL | SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3 | |
| SSL_OP_NO_COMPRESSION | |
| SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION); |
| |
| // auto ecdh = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1); |
| // SSL_CTX_set_tmp_ecdh(ctx_, ecdh); |
| // EC_KEY_free(ecdh); |
| |
| if (SSL_CTX_use_certificate_chain_file(ctx_, cert_path) != 1 || |
| SSL_CTX_use_PrivateKey_file(ctx_, private_key_path, SSL_FILETYPE_PEM) != |
| 1) { |
| SSL_CTX_free(ctx_); |
| ctx_ = nullptr; |
| } else if (client_ca_cert_file_path || client_ca_cert_dir_path) { |
| // if (client_ca_cert_file_path) { |
| // auto list = SSL_load_client_CA_file(client_ca_cert_file_path); |
| // SSL_CTX_set_client_CA_list(ctx_, list); |
| // } |
| |
| SSL_CTX_load_verify_locations(ctx_, client_ca_cert_file_path, |
| client_ca_cert_dir_path); |
| |
| SSL_CTX_set_verify( |
| ctx_, |
| SSL_VERIFY_PEER | |
| SSL_VERIFY_FAIL_IF_NO_PEER_CERT, // SSL_VERIFY_CLIENT_ONCE, |
| nullptr); |
| } |
| } |
| } |
| |
| inline SSLServer::~SSLServer() { |
| if (ctx_) { SSL_CTX_free(ctx_); } |
| } |
| |
| inline bool SSLServer::is_valid() const { return ctx_; } |
| |
| inline bool SSLServer::process_and_close_socket(socket_t sock) { |
| return detail::process_and_close_socket_ssl( |
| false, sock, keep_alive_max_count_, ctx_, ctx_mutex_, SSL_accept, |
| [](SSL * /*ssl*/) { return true; }, |
| [this](SSL *ssl, Stream &strm, bool last_connection, |
| bool &connection_close) { |
| return process_request(strm, last_connection, connection_close, |
| [&](Request &req) { req.ssl = ssl; }); |
| }); |
| } |
| |
| // SSL HTTP client implementation |
| inline SSLClient::SSLClient(const char *host, int port, time_t timeout_sec, |
| const char *client_cert_path, |
| const char *client_key_path) |
| : Client(host, port, timeout_sec) { |
| ctx_ = SSL_CTX_new(SSLv23_client_method()); |
| |
| detail::split(&host_[0], &host_[host_.size()], '.', |
| [&](const char *b, const char *e) { |
| host_components_.emplace_back(std::string(b, e)); |
| }); |
| if (client_cert_path && client_key_path) { |
| if (SSL_CTX_use_certificate_file(ctx_, client_cert_path, |
| SSL_FILETYPE_PEM) != 1 || |
| SSL_CTX_use_PrivateKey_file(ctx_, client_key_path, SSL_FILETYPE_PEM) != |
| 1) { |
| SSL_CTX_free(ctx_); |
| ctx_ = nullptr; |
| } |
| } |
| } |
| |
| inline SSLClient::~SSLClient() { |
| if (ctx_) { SSL_CTX_free(ctx_); } |
| } |
| |
| inline bool SSLClient::is_valid() const { return ctx_; } |
| |
| inline void SSLClient::set_ca_cert_path(const char *ca_cert_file_path, |
| const char *ca_cert_dir_path) { |
| if (ca_cert_file_path) { ca_cert_file_path_ = ca_cert_file_path; } |
| if (ca_cert_dir_path) { ca_cert_dir_path_ = ca_cert_dir_path; } |
| } |
| |
| inline void SSLClient::enable_server_certificate_verification(bool enabled) { |
| server_certificate_verification_ = enabled; |
| } |
| |
| inline long SSLClient::get_openssl_verify_result() const { |
| return verify_result_; |
| } |
| |
| inline bool SSLClient::process_and_close_socket( |
| socket_t sock, size_t request_count, |
| std::function<bool(Stream &strm, bool last_connection, |
| bool &connection_close)> |
| callback) { |
| |
| request_count = std::min(request_count, keep_alive_max_count_); |
| |
| return is_valid() && |
| detail::process_and_close_socket_ssl( |
| true, sock, request_count, ctx_, ctx_mutex_, |
| [&](SSL *ssl) { |
| if (ca_cert_file_path_.empty()) { |
| SSL_CTX_set_verify(ctx_, SSL_VERIFY_NONE, nullptr); |
| } else { |
| if (!SSL_CTX_load_verify_locations( |
| ctx_, ca_cert_file_path_.c_str(), nullptr)) { |
| return false; |
| } |
| SSL_CTX_set_verify(ctx_, SSL_VERIFY_PEER, nullptr); |
| } |
| |
| if (SSL_connect(ssl) != 1) { return false; } |
| |
| if (server_certificate_verification_) { |
| verify_result_ = SSL_get_verify_result(ssl); |
| |
| if (verify_result_ != X509_V_OK) { return false; } |
| |
| auto server_cert = SSL_get_peer_certificate(ssl); |
| |
| if (server_cert == nullptr) { return false; } |
| |
| if (!verify_host(server_cert)) { |
| X509_free(server_cert); |
| return false; |
| } |
| X509_free(server_cert); |
| } |
| |
| return true; |
| }, |
| [&](SSL *ssl) { |
| SSL_set_tlsext_host_name(ssl, host_.c_str()); |
| return true; |
| }, |
| [&](SSL * /*ssl*/, Stream &strm, bool last_connection, |
| bool &connection_close) { |
| return callback(strm, last_connection, connection_close); |
| }); |
| } |
| |
| inline bool SSLClient::is_ssl() const { return true; } |
| |
| inline bool SSLClient::verify_host(X509 *server_cert) const { |
| /* Quote from RFC2818 section 3.1 "Server Identity" |
| |
| If a subjectAltName extension of type dNSName is present, that MUST |
| be used as the identity. Otherwise, the (most specific) Common Name |
| field in the Subject field of the certificate MUST be used. Although |
| the use of the Common Name is existing practice, it is deprecated and |
| Certification Authorities are encouraged to use the dNSName instead. |
| |
| Matching is performed using the matching rules specified by |
| [RFC2459]. If more than one identity of a given type is present in |
| the certificate (e.g., more than one dNSName name, a match in any one |
| of the set is considered acceptable.) Names may contain the wildcard |
| character * which is considered to match any single domain name |
| component or component fragment. E.g., *.a.com matches foo.a.com but |
| not bar.foo.a.com. f*.com matches foo.com but not bar.com. |
| |
| In some cases, the URI is specified as an IP address rather than a |
| hostname. In this case, the iPAddress subjectAltName must be present |
| in the certificate and must exactly match the IP in the URI. |
| |
| */ |
| return verify_host_with_subject_alt_name(server_cert) || |
| verify_host_with_common_name(server_cert); |
| } |
| |
| inline bool |
| SSLClient::verify_host_with_subject_alt_name(X509 *server_cert) const { |
| auto ret = false; |
| |
| auto type = GEN_DNS; |
| |
| struct in6_addr addr6; |
| struct in_addr addr; |
| size_t addr_len = 0; |
| |
| #ifndef __MINGW32__ |
| if (inet_pton(AF_INET6, host_.c_str(), &addr6)) { |
| type = GEN_IPADD; |
| addr_len = sizeof(struct in6_addr); |
| } else if (inet_pton(AF_INET, host_.c_str(), &addr)) { |
| type = GEN_IPADD; |
| addr_len = sizeof(struct in_addr); |
| } |
| #endif |
| |
| auto alt_names = static_cast<const struct stack_st_GENERAL_NAME *>( |
| X509_get_ext_d2i(server_cert, NID_subject_alt_name, nullptr, nullptr)); |
| |
| if (alt_names) { |
| auto dsn_matched = false; |
| auto ip_mached = false; |
| |
| auto count = sk_GENERAL_NAME_num(alt_names); |
| |
| for (auto i = 0; i < count && !dsn_matched; i++) { |
| auto val = sk_GENERAL_NAME_value(alt_names, i); |
| if (val->type == type) { |
| auto name = (const char *)ASN1_STRING_get0_data(val->d.ia5); |
| auto name_len = (size_t)ASN1_STRING_length(val->d.ia5); |
| |
| if (strlen(name) == name_len) { |
| switch (type) { |
| case GEN_DNS: dsn_matched = check_host_name(name, name_len); break; |
| |
| case GEN_IPADD: |
| if (!memcmp(&addr6, name, addr_len) || |
| !memcmp(&addr, name, addr_len)) { |
| ip_mached = true; |
| } |
| break; |
| } |
| } |
| } |
| } |
| |
| if (dsn_matched || ip_mached) { ret = true; } |
| } |
| |
| GENERAL_NAMES_free((STACK_OF(GENERAL_NAME) *)alt_names); |
| |
| return ret; |
| } |
| |
| inline bool SSLClient::verify_host_with_common_name(X509 *server_cert) const { |
| const auto subject_name = X509_get_subject_name(server_cert); |
| |
| if (subject_name != nullptr) { |
| char name[BUFSIZ]; |
| auto name_len = X509_NAME_get_text_by_NID(subject_name, NID_commonName, |
| name, sizeof(name)); |
| |
| if (name_len != -1) { return check_host_name(name, name_len); } |
| } |
| |
| return false; |
| } |
| |
| inline bool SSLClient::check_host_name(const char *pattern, |
| size_t pattern_len) const { |
| if (host_.size() == pattern_len && host_ == pattern) { return true; } |
| |
| // Wildcard match |
| // https://bugs.launchpad.net/ubuntu/+source/firefox-3.0/+bug/376484 |
| std::vector<std::string> pattern_components; |
| detail::split(&pattern[0], &pattern[pattern_len], '.', |
| [&](const char *b, const char *e) { |
| pattern_components.emplace_back(std::string(b, e)); |
| }); |
| |
| if (host_components_.size() != pattern_components.size()) { return false; } |
| |
| auto itr = pattern_components.begin(); |
| for (const auto &h : host_components_) { |
| auto &p = *itr; |
| if (p != h && p != "*") { |
| auto partial_match = (p.size() > 0 && p[p.size() - 1] == '*' && |
| !p.compare(0, p.size() - 1, h)); |
| if (!partial_match) { return false; } |
| } |
| ++itr; |
| } |
| |
| return true; |
| } |
| #endif |
| |
| } // namespace httplib |
| |
| #endif // CPPHTTPLIB_HTTPLIB_H |