| // |
| // httplib.h |
| // |
| // Copyright (c) 2017 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 |
| #ifndef _CRT_NONSTDC_NO_DEPRECATE |
| #define _CRT_NONSTDC_NO_DEPRECATE |
| #endif |
| |
| #if defined(_MSC_VER) && _MSC_VER < 1900 |
| #define snprintf _snprintf_s |
| #endif |
| |
| #ifndef S_ISREG |
| #define S_ISREG(m) (((m)&S_IFREG)==S_IFREG) |
| #endif |
| #ifndef S_ISDIR |
| #define S_ISDIR(m) (((m)&S_IFDIR)==S_IFDIR) |
| #endif |
| |
| #include <io.h> |
| #include <winsock2.h> |
| #include <ws2tcpip.h> |
| |
| #undef min |
| #undef max |
| |
| #ifndef strcasecmp |
| #define strcasecmp _stricmp |
| #endif |
| |
| typedef SOCKET socket_t; |
| #else |
| #include <pthread.h> |
| #include <unistd.h> |
| #include <netdb.h> |
| #include <cstring> |
| #include <netinet/in.h> |
| #include <arpa/inet.h> |
| #include <signal.h> |
| #include <sys/socket.h> |
| #include <sys/select.h> |
| |
| typedef int socket_t; |
| #define INVALID_SOCKET (-1) |
| #endif |
| |
| #include <fstream> |
| #include <functional> |
| #include <map> |
| #include <memory> |
| #include <mutex> |
| #include <regex> |
| #include <string> |
| #include <thread> |
| #include <sys/stat.h> |
| #include <fcntl.h> |
| #include <assert.h> |
| |
| #ifdef CPPHTTPLIB_OPENSSL_SUPPORT |
| #include <openssl/ssl.h> |
| #endif |
| |
| #ifdef CPPHTTPLIB_ZLIB_SUPPORT |
| #include "third_party/zlib/zlib_crashpad.h" |
| #endif |
| |
| /* |
| * Configuration |
| */ |
| #define CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND 5 |
| #define CPPHTTPLIB_KEEPALIVE_TIMEOUT_USECOND 0 |
| |
| 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; |
| |
| template<typename uint64_t, typename... Args> |
| std::pair<std::string, std::string> make_range_header(uint64_t value, Args... args); |
| |
| typedef std::multimap<std::string, std::string> Params; |
| typedef std::smatch Match; |
| typedef std::function<void (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 Request { |
| std::string version; |
| std::string method; |
| std::string target; |
| std::string path; |
| Headers headers; |
| std::string body; |
| Params params; |
| MultipartFiles files; |
| Match matches; |
| |
| Progress progress; |
| |
| bool has_header(const char* key) const; |
| std::string get_header_value(const char* key) const; |
| void set_header(const char* key, const char* val); |
| |
| bool has_param(const char* key) const; |
| std::string get_param_value(const char* key) const; |
| |
| bool has_file(const char* key) const; |
| MultipartFile get_file_value(const char* key) const; |
| }; |
| |
| 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) const; |
| void set_header(const char* key, const char* 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); |
| |
| Response() : status(-1) {} |
| }; |
| |
| class Stream { |
| public: |
| virtual ~Stream() {} |
| virtual int read(char* ptr, size_t size) = 0; |
| virtual int write(const char* ptr, size_t size1) = 0; |
| virtual int write(const char* ptr) = 0; |
| virtual std::string get_remote_addr() = 0; |
| |
| template <typename ...Args> |
| void write_format(const char* fmt, const Args& ...args); |
| }; |
| |
| 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 std::string get_remote_addr(); |
| |
| private: |
| socket_t sock_; |
| }; |
| |
| 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& Delete(const char* pattern, Handler handler); |
| Server& Options(const char* pattern, Handler handler); |
| |
| bool set_base_dir(const char* path); |
| |
| void set_error_handler(Handler handler); |
| void set_logger(Logger logger); |
| |
| void set_keep_alive_max_count(size_t count); |
| |
| int bind_to_any_port(const char* host, int socket_flags = 0); |
| bool listen_after_bind(); |
| |
| bool listen(const char* host, int port, int socket_flags = 0); |
| |
| bool is_running() const; |
| void stop(); |
| |
| protected: |
| bool process_request(Stream& strm, bool last_connection, bool& connection_close); |
| |
| size_t keep_alive_max_count_; |
| |
| private: |
| typedef std::vector<std::pair<std::regex, Handler>> Handlers; |
| |
| socket_t create_server_socket(const char* host, int port, int socket_flags) const; |
| int bind_internal(const char* host, int port, int socket_flags); |
| bool listen_internal(); |
| |
| bool routing(Request& req, Response& res); |
| bool handle_file_request(Request& req, Response& res); |
| bool dispatch_request(Request& req, Response& res, Handlers& handlers); |
| |
| bool parse_request_line(const char* s, Request& req); |
| void write_response(Stream& strm, bool last_connection, const Request& req, Response& res); |
| |
| virtual bool read_and_close_socket(socket_t sock); |
| |
| bool is_running_; |
| socket_t svr_sock_; |
| std::string base_dir_; |
| Handlers get_handlers_; |
| Handlers post_handlers_; |
| Handlers put_handlers_; |
| Handlers delete_handlers_; |
| Handlers options_handlers_; |
| Handler error_handler_; |
| Logger logger_; |
| |
| // TODO: Use thread pool... |
| std::mutex running_threads_mutex_; |
| int running_threads_; |
| }; |
| |
| class Client { |
| public: |
| Client( |
| const char* host, |
| int port = 80, |
| size_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> 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& params); |
| std::shared_ptr<Response> Post(const char* path, const Headers& headers, const Params& params); |
| |
| 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> Delete(const char* path); |
| std::shared_ptr<Response> Delete(const char* path, const Headers& headers); |
| |
| std::shared_ptr<Response> Options(const char* path); |
| std::shared_ptr<Response> Options(const char* path, const Headers& headers); |
| |
| bool send(Request& req, Response& res); |
| |
| protected: |
| bool process_request(Stream& strm, Request& req, Response& res, bool& connection_close); |
| |
| const std::string host_; |
| const int port_; |
| size_t timeout_sec_; |
| const std::string host_and_port_; |
| |
| private: |
| socket_t create_client_socket() const; |
| bool read_response_line(Stream& strm, Response& res); |
| void write_request(Stream& strm, Request& req); |
| |
| virtual bool read_and_close_socket(socket_t sock, Request& req, Response& res); |
| }; |
| |
| #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 std::string get_remote_addr(); |
| |
| private: |
| socket_t sock_; |
| SSL* ssl_; |
| }; |
| |
| class SSLServer : public Server { |
| public: |
| SSLServer( |
| const char* cert_path, const char* private_key_path); |
| |
| virtual ~SSLServer(); |
| |
| virtual bool is_valid() const; |
| |
| private: |
| virtual bool read_and_close_socket(socket_t sock); |
| |
| SSL_CTX* ctx_; |
| std::mutex ctx_mutex_; |
| }; |
| |
| class SSLClient : public Client { |
| public: |
| SSLClient( |
| const char* host, |
| int port = 80, |
| size_t timeout_sec = 300); |
| |
| virtual ~SSLClient(); |
| |
| virtual bool is_valid() const; |
| |
| private: |
| virtual bool read_and_close_socket(socket_t sock, Request& req, Response& res); |
| |
| SSL_CTX* ctx_; |
| std::mutex ctx_mutex_; |
| }; |
| #endif |
| |
| /* |
| * Implementation |
| */ |
| namespace detail { |
| |
| 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(); |
| } |
| } |
| |
| 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, size_t sec, size_t usec) |
| { |
| fd_set fds; |
| FD_ZERO(&fds); |
| FD_SET(sock, &fds); |
| |
| timeval tv; |
| tv.tv_sec = sec; |
| tv.tv_usec = usec; |
| |
| return select(sock + 1, &fds, NULL, NULL, &tv); |
| } |
| |
| inline bool wait_until_socket_is_ready(socket_t sock, size_t sec, size_t usec) |
| { |
| fd_set fdsr; |
| FD_ZERO(&fdsr); |
| FD_SET(sock, &fdsr); |
| |
| auto fdsw = fdsr; |
| auto fdse = fdsr; |
| |
| timeval tv; |
| tv.tv_sec = sec; |
| tv.tv_usec = usec; |
| |
| if (select(sock + 1, &fdsr, &fdsw, &fdse, &tv) < 0) { |
| return false; |
| } else if (FD_ISSET(sock, &fdsr) || FD_ISSET(sock, &fdsw)) { |
| int error = 0; |
| socklen_t len = sizeof(error); |
| if (getsockopt(sock, SOL_SOCKET, SO_ERROR, (char*)&error, &len) < 0 || error) { |
| return false; |
| } |
| } else { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| template <typename T> |
| inline bool read_and_close_socket(socket_t sock, size_t keep_alive_max_count, T callback) |
| { |
| bool ret = false; |
| |
| if (keep_alive_max_count > 0) { |
| auto count = keep_alive_max_count; |
| while (count > 0 && |
| detail::select_read(sock, |
| CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND, |
| CPPHTTPLIB_KEEPALIVE_TIMEOUT_USECOND) > 0) { |
| SocketStream strm(sock); |
| auto last_connection = count == 1; |
| auto connection_close = false; |
| |
| ret = callback(strm, last_connection, connection_close); |
| if (!ret || connection_close) { |
| break; |
| } |
| |
| 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 |
| auto sock = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol); |
| if (sock == INVALID_SOCKET) { |
| continue; |
| } |
| |
| // Make 'reuse address' option available |
| int yes = 1; |
| setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (char*)&yes, sizeof(yes)); |
| |
| // 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 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(); |
| } |
| |
| inline const char* find_content_type(const std::string& path) |
| { |
| auto ext = file_extension(path); |
| if (ext == "txt") { |
| return "text/plain"; |
| } else if (ext == "html") { |
| return "text/html"; |
| } else if (ext == "css") { |
| return "text/css"; |
| } else if (ext == "jpeg" || ext == "jpg") { |
| return "image/jpg"; |
| } else if (ext == "png") { |
| return "image/png"; |
| } else if (ext == "gif") { |
| return "image/gif"; |
| } else if (ext == "svg") { |
| return "image/svg+xml"; |
| } else if (ext == "ico") { |
| return "image/x-icon"; |
| } else if (ext == "json") { |
| return "application/json"; |
| } else if (ext == "pdf") { |
| return "application/pdf"; |
| } else if (ext == "js") { |
| return "application/javascript"; |
| } else if (ext == "xml") { |
| return "application/xml"; |
| } else if (ext == "xhtml") { |
| return "application/xhtml+xml"; |
| } |
| return nullptr; |
| } |
| |
| inline const char* status_message(int status) |
| { |
| switch (status) { |
| case 200: return "OK"; |
| case 400: return "Bad Request"; |
| case 404: return "Not Found"; |
| case 415: return "Unsupported Media Type"; |
| default: |
| case 500: return "Internal Server Error"; |
| } |
| } |
| |
| inline const char* get_header_value(const Headers& headers, const char* key, const char* def) |
| { |
| auto it = headers.find(key); |
| if (it != headers.end()) { |
| return it->second.c_str(); |
| } |
| return def; |
| } |
| |
| inline int get_header_value_int(const Headers& headers, const char* key, int def) |
| { |
| auto it = headers.find(key); |
| if (it != headers.end()) { |
| return std::stoi(it->second); |
| } |
| return def; |
| } |
| |
| inline bool read_headers(Stream& strm, Headers& headers) |
| { |
| static std::regex re(R"((.+?):\s*(.+?)\s*\r\n)"); |
| |
| const auto bufsiz = 2048; |
| char buf[bufsiz]; |
| |
| stream_line_reader reader(strm, buf, bufsiz); |
| |
| for (;;) { |
| if (!reader.getline()) { |
| return false; |
| } |
| if (!strcmp(reader.ptr(), "\r\n")) { |
| break; |
| } |
| std::cmatch m; |
| if (std::regex_match(reader.ptr(), m, re)) { |
| auto key = std::string(m[1]); |
| auto val = std::string(m[2]); |
| headers.emplace(key, val); |
| } |
| } |
| |
| return true; |
| } |
| |
| inline bool read_content_with_length(Stream& strm, std::string& out, size_t len, Progress progress) |
| { |
| out.assign(len, 0); |
| size_t r = 0; |
| while (r < len){ |
| auto n = strm.read(&out[r], len - r); |
| if (n <= 0) { |
| return false; |
| } |
| |
| r += n; |
| |
| if (progress) { |
| progress(r, len); |
| } |
| } |
| |
| return true; |
| } |
| |
| inline bool read_content_without_length(Stream& strm, std::string& out) |
| { |
| for (;;) { |
| char byte; |
| auto n = strm.read(&byte, 1); |
| if (n < 0) { |
| return false; |
| } else if (n == 0) { |
| return true; |
| } |
| out += byte; |
| } |
| |
| return true; |
| } |
| |
| inline bool read_content_chunked(Stream& strm, std::string& out) |
| { |
| const auto bufsiz = 16; |
| char buf[bufsiz]; |
| |
| stream_line_reader reader(strm, buf, bufsiz); |
| |
| if (!reader.getline()) { |
| return false; |
| } |
| |
| auto chunk_len = std::stoi(reader.ptr(), 0, 16); |
| |
| while (chunk_len > 0){ |
| std::string chunk; |
| if (!read_content_with_length(strm, chunk, chunk_len, nullptr)) { |
| return false; |
| } |
| |
| if (!reader.getline()) { |
| return false; |
| } |
| |
| if (strcmp(reader.ptr(), "\r\n")) { |
| break; |
| } |
| |
| out += chunk; |
| |
| 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; |
| } |
| |
| template <typename T> |
| bool read_content(Stream& strm, T& x, Progress progress = Progress()) |
| { |
| auto len = get_header_value_int(x.headers, "Content-Length", 0); |
| |
| if (len) { |
| return read_content_with_length(strm, x.body, len, progress); |
| } else { |
| const auto& encoding = get_header_value(x.headers, "Transfer-Encoding", ""); |
| |
| if (!strcasecmp(encoding, "chunked")) { |
| return read_content_chunked(strm, x.body); |
| } else { |
| return read_content_without_length(strm, x.body); |
| } |
| } |
| |
| return true; |
| } |
| |
| template <typename T> |
| inline void write_headers(Stream& strm, const T& info) |
| { |
| for (const auto& x: info.headers) { |
| strm.write_format("%s: %s\r\n", x.first.c_str(), x.second.c_str()); |
| } |
| strm.write("\r\n"); |
| } |
| |
| inline std::string encode_url(const std::string& s) |
| { |
| std::string result; |
| |
| for (auto i = 0; s[i]; i++) { |
| switch (s[i]) { |
| case ' ': result += "+"; break; |
| case '\'': result += "%27"; break; |
| case ',': result += "%2C"; break; |
| case ':': result += "%3A"; break; |
| case ';': result += "%3B"; break; |
| default: |
| if (s[i] < 0) { |
| result += '%'; |
| char hex[4]; |
| size_t len = snprintf(hex, sizeof(hex) - 1, "%02X", (unsigned char)s[i]); |
| assert(len == 2); |
| result.append(hex, len); |
| } else { |
| result += s[i]; |
| } |
| break; |
| } |
| } |
| |
| return result; |
| } |
| |
| inline bool is_hex(char c, int& v) |
| { |
| if (0x20 <= c && isdigit(c)) { |
| v = c - '0'; |
| return true; |
| } else if ('A' <= c && c <= 'F') { |
| v = c - 'A' + 10; |
| return true; |
| } else if ('a' <= c && c <= 'f') { |
| v = c - 'a' + 10; |
| return true; |
| } |
| return false; |
| } |
| |
| inline bool from_hex_to_i(const std::string& s, int i, int cnt, int& val) |
| { |
| val = 0; |
| for (; cnt; i++, cnt--) { |
| if (!s[i]) { |
| return false; |
| } |
| int v = 0; |
| if (is_hex(s[i], v)) { |
| val = val * 16 + v; |
| } else { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| inline size_t to_utf8(int code, char* buff) |
| { |
| if (code < 0x0080) { |
| buff[0] = (code & 0x7F); |
| return 1; |
| } else if (code < 0x0800) { |
| buff[0] = (0xC0 | ((code >> 6) & 0x1F)); |
| buff[1] = (0x80 | (code & 0x3F)); |
| return 2; |
| } else if (code < 0xD800) { |
| buff[0] = (0xE0 | ((code >> 12) & 0xF)); |
| buff[1] = (0x80 | ((code >> 6) & 0x3F)); |
| buff[2] = (0x80 | (code & 0x3F)); |
| return 3; |
| } else if (code < 0xE000) { // D800 - DFFF is invalid... |
| return 0; |
| } else if (code < 0x10000) { |
| buff[0] = (0xE0 | ((code >> 12) & 0xF)); |
| buff[1] = (0x80 | ((code >> 6) & 0x3F)); |
| buff[2] = (0x80 | (code & 0x3F)); |
| return 3; |
| } else if (code < 0x110000) { |
| buff[0] = (0xF0 | ((code >> 18) & 0x7)); |
| buff[1] = (0x80 | ((code >> 12) & 0x3F)); |
| buff[2] = (0x80 | ((code >> 6) & 0x3F)); |
| buff[3] = (0x80 | (code & 0x3F)); |
| return 4; |
| } |
| |
| // NOTREACHED |
| return 0; |
| } |
| |
| inline std::string decode_url(const std::string& s) |
| { |
| std::string result; |
| |
| for (int i = 0; s[i]; i++) { |
| if (s[i] == '%') { |
| if (s[i + 1] && s[i + 1] == 'u') { |
| int val = 0; |
| if (from_hex_to_i(s, i + 2, 4, val)) { |
| // 4 digits Unicode codes |
| char buff[4]; |
| size_t len = to_utf8(val, buff); |
| if (len > 0) { |
| result.append(buff, len); |
| } |
| i += 5; // 'u0000' |
| } else { |
| result += s[i]; |
| } |
| } else { |
| int val = 0; |
| if (from_hex_to_i(s, i + 1, 2, val)) { |
| // 2 digits hex codes |
| result += val; |
| i += 2; // '00' |
| } else { |
| result += s[i]; |
| } |
| } |
| } else if (s[i] == '+') { |
| result += ' '; |
| } else { |
| result += s[i]; |
| } |
| } |
| |
| return result; |
| } |
| |
| inline void parse_query_text(const std::string& s, Params& params) |
| { |
| split(&s[0], &s[s.size()], '&', [&](const char* b, const char* e) { |
| std::string key; |
| std::string val; |
| split(b, e, '=', [&](const char* b, const char* e) { |
| if (key.empty()) { |
| key.assign(b, e); |
| } else { |
| val.assign(b, e); |
| } |
| }); |
| params.emplace(key, decode_url(val)); |
| }); |
| } |
| |
| inline bool parse_multipart_boundary(const std::string& content_type, std::string& boundary) |
| { |
| auto pos = content_type.find("boundary="); |
| if (pos == std::string::npos) { |
| return false; |
| } |
| |
| boundary = content_type.substr(pos + 9); |
| return true; |
| } |
| |
| inline bool parse_multipart_formdata( |
| const std::string& boundary, const std::string& body, MultipartFiles& files) |
| { |
| static std::string dash = "--"; |
| static std::string crlf = "\r\n"; |
| |
| static std::regex re_content_type( |
| "Content-Type: (.*?)", 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 std::string to_lower(const char* beg, const char* end) |
| { |
| std::string out; |
| auto it = beg; |
| while (it != end) { |
| out += ::tolower(*it); |
| it++; |
| } |
| return out; |
| } |
| |
| inline void make_range_header_core(std::string&) {} |
| |
| template<typename uint64_t> |
| inline void make_range_header_core(std::string& field, uint64_t value) |
| { |
| if (!field.empty()) { |
| field += ", "; |
| } |
| field += std::to_string(value) + "-"; |
| } |
| |
| template<typename uint64_t, typename... Args> |
| inline void make_range_header_core(std::string& field, uint64_t value1, uint64_t value2, Args... args) |
| { |
| if (!field.empty()) { |
| field += ", "; |
| } |
| field += std::to_string(value1) + "-" + std::to_string(value2); |
| make_range_header_core(field, args...); |
| } |
| |
| #ifdef CPPHTTPLIB_ZLIB_SUPPORT |
| inline bool can_compress(const std::string& content_type) { |
| return !content_type.find("text/") || |
| content_type == "image/svg+xml" || |
| content_type == "application/javascript" || |
| content_type == "application/json" || |
| content_type == "application/xml" || |
| content_type == "application/xhtml+xml"; |
| } |
| |
| inline void compress(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; |
| } |
| |
| 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; |
| deflate(&strm, Z_FINISH); |
| compressed.append(buff, bufsiz - strm.avail_out); |
| } while (strm.avail_out == 0); |
| |
| content.swap(compressed); |
| |
| deflateEnd(&strm); |
| } |
| |
| inline void decompress(std::string& content) |
| { |
| z_stream strm; |
| strm.zalloc = Z_NULL; |
| strm.zfree = Z_NULL; |
| strm.opaque = Z_NULL; |
| |
| // 15 is the value of wbits, which should be at the maximum possible value to ensure |
| // that any gzip stream can be decoded. The offset of 16 specifies that the stream |
| // to decompress will be formatted with a gzip wrapper. |
| auto ret = inflateInit2(&strm, 16 + 15); |
| if (ret != Z_OK) { |
| return; |
| } |
| |
| strm.avail_in = content.size(); |
| strm.next_in = (Bytef *)content.data(); |
| |
| std::string decompressed; |
| |
| const auto bufsiz = 16384; |
| char buff[bufsiz]; |
| do { |
| strm.avail_out = bufsiz; |
| strm.next_out = (Bytef *)buff; |
| inflate(&strm, Z_NO_FLUSH); |
| decompressed.append(buff, bufsiz - strm.avail_out); |
| } while (strm.avail_out == 0); |
| |
| content.swap(decompressed); |
| |
| inflateEnd(&strm); |
| } |
| #endif |
| |
| #ifdef _WIN32 |
| class WSInit { |
| public: |
| WSInit() { |
| WSADATA wsaData; |
| WSAStartup(0x0002, &wsaData); |
| } |
| |
| ~WSInit() { |
| WSACleanup(); |
| } |
| }; |
| |
| static WSInit wsinit_; |
| #endif |
| |
| } // namespace detail |
| |
| // Header utilities |
| template<typename uint64_t, typename... Args> |
| inline std::pair<std::string, std::string> make_range_header(uint64_t value, Args... args) |
| { |
| std::string field; |
| detail::make_range_header_core(field, value, args...); |
| field.insert(0, "bytes="); |
| return std::make_pair("Range", field); |
| } |
| |
| // Request implementation |
| inline bool Request::has_header(const char* key) const |
| { |
| return headers.find(key) != headers.end(); |
| } |
| |
| inline std::string Request::get_header_value(const char* key) const |
| { |
| return detail::get_header_value(headers, key, ""); |
| } |
| |
| inline void Request::set_header(const char* key, const char* val) |
| { |
| headers.emplace(key, val); |
| } |
| |
| inline bool Request::has_param(const char* key) const |
| { |
| return params.find(key) != params.end(); |
| } |
| |
| inline std::string Request::get_param_value(const char* key) const |
| { |
| auto it = params.find(key); |
| if (it != params.end()) { |
| return it->second; |
| } |
| return std::string(); |
| } |
| |
| inline bool Request::has_file(const char* key) const |
| { |
| return files.find(key) != files.end(); |
| } |
| |
| inline MultipartFile Request::get_file_value(const char* key) const |
| { |
| auto it = files.find(key); |
| if (it != files.end()) { |
| return it->second; |
| } |
| return MultipartFile(); |
| } |
| |
| // Response implementation |
| inline bool Response::has_header(const char* key) const |
| { |
| return headers.find(key) != headers.end(); |
| } |
| |
| inline std::string Response::get_header_value(const char* key) const |
| { |
| return detail::get_header_value(headers, key, ""); |
| } |
| |
| inline void Response::set_header(const char* key, const char* val) |
| { |
| headers.emplace(key, val); |
| } |
| |
| inline void Response::set_redirect(const char* url) |
| { |
| set_header("Location", url); |
| status = 302; |
| } |
| |
| inline void Response::set_content(const char* s, size_t n, const char* content_type) |
| { |
| body.assign(s, n); |
| set_header("Content-Type", content_type); |
| } |
| |
| inline void Response::set_content(const std::string& s, const char* content_type) |
| { |
| body = s; |
| set_header("Content-Type", content_type); |
| } |
| |
| // Rstream implementation |
| template <typename ...Args> |
| inline void Stream::write_format(const char* fmt, const Args& ...args) |
| { |
| const auto bufsiz = 2048; |
| char buf[bufsiz]; |
| |
| #if defined(_MSC_VER) && _MSC_VER < 1900 |
| auto n = _snprintf_s(buf, bufsiz, bufsiz - 1, fmt, args...); |
| #else |
| auto n = snprintf(buf, bufsiz - 1, fmt, args...); |
| #endif |
| if (n > 0) { |
| if (n >= bufsiz - 1) { |
| std::vector<char> glowable_buf(bufsiz); |
| |
| while (n >= static_cast<int>(glowable_buf.size() - 1)) { |
| glowable_buf.resize(glowable_buf.size() * 2); |
| #if defined(_MSC_VER) && _MSC_VER < 1900 |
| n = _snprintf_s(&glowable_buf[0], glowable_buf.size(), glowable_buf.size() - 1, fmt, args...); |
| #else |
| n = snprintf(&glowable_buf[0], glowable_buf.size() - 1, fmt, args...); |
| #endif |
| } |
| write(&glowable_buf[0], n); |
| } else { |
| write(buf, n); |
| } |
| } |
| } |
| |
| // Socket stream implementation |
| inline SocketStream::SocketStream(socket_t sock): sock_(sock) |
| { |
| } |
| |
| inline SocketStream::~SocketStream() |
| { |
| } |
| |
| inline int SocketStream::read(char* ptr, size_t size) |
| { |
| return recv(sock_, ptr, size, 0); |
| } |
| |
| inline int SocketStream::write(const char* ptr, size_t size) |
| { |
| return send(sock_, ptr, size, 0); |
| } |
| |
| inline int SocketStream::write(const char* ptr) |
| { |
| return write(ptr, strlen(ptr)); |
| } |
| |
| inline std::string SocketStream::get_remote_addr() { |
| return detail::get_remote_addr(sock_); |
| } |
| |
| // HTTP server implementation |
| inline Server::Server() |
| : keep_alive_max_count_(5) |
| , is_running_(false) |
| , svr_sock_(INVALID_SOCKET) |
| , running_threads_(0) |
| { |
| #ifndef _WIN32 |
| signal(SIGPIPE, SIG_IGN); |
| #endif |
| } |
| |
| inline Server::~Server() |
| { |
| } |
| |
| inline Server& Server::Get(const char* pattern, Handler handler) |
| { |
| get_handlers_.push_back(std::make_pair(std::regex(pattern), handler)); |
| return *this; |
| } |
| |
| inline Server& Server::Post(const char* pattern, Handler handler) |
| { |
| post_handlers_.push_back(std::make_pair(std::regex(pattern), handler)); |
| return *this; |
| } |
| |
| inline Server& Server::Put(const char* pattern, Handler handler) |
| { |
| put_handlers_.push_back(std::make_pair(std::regex(pattern), handler)); |
| return *this; |
| } |
| |
| inline Server& Server::Delete(const char* pattern, Handler handler) |
| { |
| delete_handlers_.push_back(std::make_pair(std::regex(pattern), handler)); |
| return *this; |
| } |
| |
| inline Server& Server::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_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 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); |
| detail::shutdown_socket(svr_sock_); |
| detail::close_socket(svr_sock_); |
| svr_sock_ = INVALID_SOCKET; |
| } |
| } |
| |
| inline bool Server::parse_request_line(const char* s, Request& req) |
| { |
| static std::regex re("(GET|HEAD|POST|PUT|DELETE|OPTIONS) (([^?]+)(?:\\?(.+?))?) (HTTP/1\\.[01])\r\n"); |
| |
| std::cmatch m; |
| if (std::regex_match(s, m, re)) { |
| req.version = std::string(m[4]); |
| req.method = std::string(m[1]); |
| req.target = std::string(m[2]); |
| req.path = detail::decode_url(m[3]); |
| |
| // Parse query text |
| auto len = std::distance(m[4].first, m[4].second); |
| if (len > 0) { |
| detail::parse_query_text(m[4], req.params); |
| } |
| |
| return true; |
| } |
| |
| return false; |
| } |
| |
| inline void Server::write_response(Stream& strm, bool last_connection, const Request& req, Response& res) |
| { |
| assert(res.status != -1); |
| |
| if (400 <= res.status && error_handler_) { |
| error_handler_(req, res); |
| } |
| |
| // Response line |
| strm.write_format("HTTP/1.1 %d %s\r\n", |
| res.status, |
| detail::status_message(res.status)); |
| |
| // Headers |
| if (last_connection || |
| req.version == "HTTP/1.0" || |
| req.get_header_value("Connection") == "close") { |
| res.set_header("Connection", "close"); |
| } |
| |
| if (!res.body.empty()) { |
| #ifdef CPPHTTPLIB_ZLIB_SUPPORT |
| // TODO: 'Accpet-Encoding' has gzip, not gzip;q=0 |
| const auto& encodings = req.get_header_value("Accept-Encoding"); |
| if (encodings.find("gzip") != std::string::npos && |
| detail::can_compress(res.get_header_value("Content-Type"))) { |
| detail::compress(res.body); |
| res.set_header("Content-Encoding", "gzip"); |
| } |
| #endif |
| |
| if (!res.has_header("Content-Type")) { |
| res.set_header("Content-Type", "text/plain"); |
| } |
| |
| auto length = std::to_string(res.body.size()); |
| res.set_header("Content-Length", length.c_str()); |
| } |
| |
| detail::write_headers(strm, res); |
| |
| // Body |
| if (!res.body.empty() && req.method != "HEAD") { |
| strm.write(res.body.c_str(), res.body.size()); |
| } |
| |
| // Log |
| if (logger_) { |
| logger_(req, res); |
| } |
| } |
| |
| inline bool Server::handle_file_request(Request& req, Response& res) |
| { |
| if (!base_dir_.empty() && detail::is_valid_path(req.path)) { |
| std::string path = base_dir_ + req.path; |
| |
| if (!path.empty() && path.back() == '/') { |
| path += "index.html"; |
| } |
| |
| if (detail::is_file(path)) { |
| detail::read_file(path, res.body); |
| auto type = detail::find_content_type(path); |
| if (type) { |
| res.set_header("Content-Type", type); |
| } |
| res.status = 200; |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| |
| inline socket_t Server::create_server_socket(const char* host, int port, int socket_flags) const |
| { |
| return detail::create_socket(host, port, |
| [](socket_t sock, struct addrinfo& ai) -> bool { |
| if (::bind(sock, ai.ai_addr, ai.ai_addrlen)) { |
| return false; |
| } |
| if (::listen(sock, 5)) { // Listen through 5 channels |
| return false; |
| } |
| return true; |
| }, socket_flags); |
| } |
| |
| inline 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; |
| |
| for (;;) { |
| auto val = detail::select_read(svr_sock_, 0, 100000); |
| |
| if (val == 0) { // Timeout |
| if (svr_sock_ == INVALID_SOCKET) { |
| // The server socket was closed by 'stop' method. |
| break; |
| } |
| continue; |
| } |
| |
| socket_t sock = accept(svr_sock_, NULL, NULL); |
| |
| 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; |
| } |
| |
| // TODO: Use thread pool... |
| std::thread([=]() { |
| { |
| std::lock_guard<std::mutex> guard(running_threads_mutex_); |
| running_threads_++; |
| } |
| |
| read_and_close_socket(sock); |
| |
| { |
| std::lock_guard<std::mutex> guard(running_threads_mutex_); |
| running_threads_--; |
| } |
| }).detach(); |
| } |
| |
| // TODO: Use thread pool... |
| for (;;) { |
| std::this_thread::sleep_for(std::chrono::milliseconds(10)); |
| std::lock_guard<std::mutex> guard(running_threads_mutex_); |
| if (!running_threads_) { |
| break; |
| } |
| } |
| |
| is_running_ = false; |
| |
| return ret; |
| } |
| |
| inline bool Server::routing(Request& req, Response& res) |
| { |
| if (req.method == "GET" && handle_file_request(req, res)) { |
| return true; |
| } |
| |
| if (req.method == "GET" || req.method == "HEAD") { |
| return dispatch_request(req, res, get_handlers_); |
| } else if (req.method == "POST") { |
| return dispatch_request(req, res, post_handlers_); |
| } else if (req.method == "PUT") { |
| return dispatch_request(req, res, put_handlers_); |
| } else if (req.method == "DELETE") { |
| return dispatch_request(req, res, delete_handlers_); |
| } else if (req.method == "OPTIONS") { |
| return dispatch_request(req, res, options_handlers_); |
| } |
| 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) |
| { |
| 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"; |
| |
| // Request line and headers |
| if (!parse_request_line(reader.ptr(), req) || !detail::read_headers(strm, req.headers)) { |
| res.status = 400; |
| write_response(strm, last_connection, req, res); |
| return true; |
| } |
| |
| auto ret = true; |
| if (req.get_header_value("Connection") == "close") { |
| // ret = false; |
| connection_close = true; |
| } |
| |
| req.set_header("REMOTE_ADDR", strm.get_remote_addr().c_str()); |
| |
| // Body |
| if (req.method == "POST" || req.method == "PUT") { |
| if (!detail::read_content(strm, req)) { |
| res.status = 400; |
| write_response(strm, last_connection, req, res); |
| return ret; |
| } |
| |
| const auto& content_type = req.get_header_value("Content-Type"); |
| |
| if (req.get_header_value("Content-Encoding") == "gzip") { |
| #ifdef CPPHTTPLIB_ZLIB_SUPPORT |
| detail::decompress(req.body); |
| #else |
| res.status = 415; |
| write_response(strm, last_connection, req, res); |
| return ret; |
| #endif |
| } |
| |
| if (!content_type.find("application/x-www-form-urlencoded")) { |
| detail::parse_query_text(req.body, req.params); |
| } else if(!content_type.find("multipart/form-data")) { |
| std::string boundary; |
| if (!detail::parse_multipart_boundary(content_type, boundary) || |
| !detail::parse_multipart_formdata(boundary, req.body, req.files)) { |
| res.status = 400; |
| write_response(strm, last_connection, req, res); |
| return ret; |
| } |
| } |
| } |
| |
| if (routing(req, res)) { |
| if (res.status == -1) { |
| res.status = 200; |
| } |
| } else { |
| res.status = 404; |
| } |
| |
| write_response(strm, last_connection, req, res); |
| return ret; |
| } |
| |
| inline bool Server::is_valid() const |
| { |
| return true; |
| } |
| |
| inline bool Server::read_and_close_socket(socket_t sock) |
| { |
| return detail::read_and_close_socket( |
| sock, |
| keep_alive_max_count_, |
| [this](Stream& strm, bool last_connection, bool& connection_close) { |
| return process_request(strm, last_connection, connection_close); |
| }); |
| } |
| |
| // HTTP client implementation |
| inline Client::Client( |
| const char* host, int port, size_t timeout_sec) |
| : host_(host) |
| , port_(port) |
| , timeout_sec_(timeout_sec) |
| , host_and_port_(host_ + ":" + std::to_string(port_)) |
| { |
| } |
| |
| inline Client::~Client() |
| { |
| } |
| |
| inline bool Client::is_valid() const |
| { |
| return true; |
| } |
| |
| inline socket_t Client::create_client_socket() const |
| { |
| return detail::create_socket(host_.c_str(), port_, |
| [=](socket_t sock, struct addrinfo& ai) -> bool { |
| detail::set_nonblocking(sock, true); |
| |
| auto ret = connect(sock, ai.ai_addr, ai.ai_addrlen); |
| if (ret < 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 read_and_close_socket(sock, req, res); |
| } |
| |
| inline void Client::write_request(Stream& strm, Request& req) |
| { |
| auto path = detail::encode_url(req.path); |
| |
| // Request line |
| strm.write_format("%s %s HTTP/1.1\r\n", |
| req.method.c_str(), |
| path.c_str()); |
| |
| // Headers |
| req.set_header("Host", host_and_port_.c_str()); |
| |
| if (!req.has_header("Accept")) { |
| req.set_header("Accept", "*/*"); |
| } |
| |
| if (!req.has_header("User-Agent")) { |
| req.set_header("User-Agent", "cpp-httplib/0.2"); |
| } |
| |
| // TODO: Support KeepAlive connection |
| // if (!req.has_header("Connection")) { |
| req.set_header("Connection", "close"); |
| // } |
| |
| if (!req.body.empty()) { |
| if (!req.has_header("Content-Type")) { |
| req.set_header("Content-Type", "text/plain"); |
| } |
| |
| auto length = std::to_string(req.body.size()); |
| req.set_header("Content-Length", length.c_str()); |
| } |
| |
| detail::write_headers(strm, req); |
| |
| // Body |
| if (!req.body.empty()) { |
| if (req.get_header_value("Content-Type") == "application/x-www-form-urlencoded") { |
| auto str = detail::encode_url(req.body); |
| strm.write(str.c_str(), str.size()); |
| } else { |
| strm.write(req.body.c_str(), req.body.size()); |
| } |
| } |
| } |
| |
| inline bool Client::process_request(Stream& strm, Request& req, Response& res, 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") { |
| if (!detail::read_content(strm, res, req.progress)) { |
| return false; |
| } |
| |
| if (res.get_header_value("Content-Encoding") == "gzip") { |
| #ifdef CPPHTTPLIB_ZLIB_SUPPORT |
| detail::decompress(res.body); |
| #else |
| return false; |
| #endif |
| } |
| } |
| |
| return true; |
| } |
| |
| inline bool Client::read_and_close_socket(socket_t sock, Request& req, Response& res) |
| { |
| return detail::read_and_close_socket( |
| sock, |
| 0, |
| [&](Stream& strm, bool /*last_connection*/, bool& connection_close) { |
| return process_request(strm, req, res, connection_close); |
| }); |
| } |
| |
| inline std::shared_ptr<Response> Client::Get(const char* path, Progress progress) |
| { |
| return Get(path, Headers(), progress); |
| } |
| |
| inline std::shared_ptr<Response> Client::Get(const char* path, const Headers& headers, Progress progress) |
| { |
| Request req; |
| req.method = "GET"; |
| req.path = path; |
| req.headers = headers; |
| req.progress = progress; |
| |
| auto res = std::make_shared<Response>(); |
| |
| return send(req, *res) ? res : nullptr; |
| } |
| |
| inline std::shared_ptr<Response> Client::Head(const char* path) |
| { |
| return Head(path, Headers()); |
| } |
| |
| inline std::shared_ptr<Response> Client::Head(const char* path, const Headers& headers) |
| { |
| Request req; |
| req.method = "HEAD"; |
| req.headers = headers; |
| req.path = path; |
| |
| auto res = std::make_shared<Response>(); |
| |
| return send(req, *res) ? res : nullptr; |
| } |
| |
| inline std::shared_ptr<Response> Client::Post( |
| const char* path, const std::string& body, const char* content_type) |
| { |
| return Post(path, Headers(), body, content_type); |
| } |
| |
| inline std::shared_ptr<Response> Client::Post( |
| const char* path, const Headers& headers, const std::string& body, const char* content_type) |
| { |
| Request req; |
| req.method = "POST"; |
| req.headers = headers; |
| req.path = path; |
| |
| req.headers.emplace("Content-Type", content_type); |
| req.body = body; |
| |
| auto res = std::make_shared<Response>(); |
| |
| return send(req, *res) ? res : nullptr; |
| } |
| |
| inline std::shared_ptr<Response> Client::Post(const char* path, const Params& params) |
| { |
| return Post(path, Headers(), params); |
| } |
| |
| inline std::shared_ptr<Response> Client::Post(const char* path, const Headers& headers, const Params& params) |
| { |
| std::string query; |
| for (auto it = params.begin(); it != params.end(); ++it) { |
| if (it != params.begin()) { |
| query += "&"; |
| } |
| query += it->first; |
| query += "="; |
| query += it->second; |
| } |
| |
| return Post(path, headers, query, "application/x-www-form-urlencoded"); |
| } |
| |
| 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::Delete(const char* path) |
| { |
| return Delete(path, Headers()); |
| } |
| |
| inline std::shared_ptr<Response> Client::Delete(const char* path, const Headers& headers) |
| { |
| Request req; |
| req.method = "DELETE"; |
| req.path = path; |
| req.headers = headers; |
| |
| 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; |
| } |
| |
| /* |
| * SSL Implementation |
| */ |
| #ifdef CPPHTTPLIB_OPENSSL_SUPPORT |
| namespace detail { |
| |
| template <typename U, typename V, typename T> |
| inline bool read_and_close_socket_ssl( |
| socket_t sock, size_t keep_alive_max_count, |
| // TODO: OpenSSL 1.0.2 occasionally crashes... |
| // The upcoming 1.1.0 is going to be thread safe. |
| SSL_CTX* ctx, std::mutex& ctx_mutex, |
| U SSL_connect_or_accept, V setup, |
| T callback) |
| { |
| SSL* ssl = nullptr; |
| { |
| std::lock_guard<std::mutex> guard(ctx_mutex); |
| |
| ssl = SSL_new(ctx); |
| if (!ssl) { |
| return false; |
| } |
| } |
| |
| auto bio = BIO_new_socket(sock, BIO_NOCLOSE); |
| SSL_set_bio(ssl, bio, bio); |
| |
| setup(ssl); |
| |
| SSL_connect_or_accept(ssl); |
| |
| bool ret = false; |
| |
| if (keep_alive_max_count > 0) { |
| auto count = keep_alive_max_count; |
| while (count > 0 && |
| detail::select_read(sock, |
| CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND, |
| CPPHTTPLIB_KEEPALIVE_TIMEOUT_USECOND) > 0) { |
| SSLSocketStream strm(sock, ssl); |
| auto last_connection = count == 1; |
| auto connection_close = false; |
| |
| ret = callback(strm, last_connection, connection_close); |
| if (!ret || connection_close) { |
| break; |
| } |
| |
| count--; |
| } |
| } else { |
| SSLSocketStream strm(sock, ssl); |
| auto dummy_connection_close = false; |
| ret = callback(strm, true, dummy_connection_close); |
| } |
| |
| SSL_shutdown(ssl); |
| |
| { |
| std::lock_guard<std::mutex> guard(ctx_mutex); |
| SSL_free(ssl); |
| } |
| |
| close_socket(sock); |
| |
| return ret; |
| } |
| |
| class SSLInit { |
| public: |
| SSLInit() { |
| SSL_load_error_strings(); |
| SSL_library_init(); |
| } |
| }; |
| |
| static SSLInit sslinit_; |
| |
| } // namespace detail |
| |
| // SSL socket stream implementation |
| inline SSLSocketStream::SSLSocketStream(socket_t sock, SSL* ssl) |
| : sock_(sock), ssl_(ssl) |
| { |
| } |
| |
| inline SSLSocketStream::~SSLSocketStream() |
| { |
| } |
| |
| inline int SSLSocketStream::read(char* ptr, size_t size) |
| { |
| return SSL_read(ssl_, ptr, size); |
| } |
| |
| inline int SSLSocketStream::write(const char* ptr, size_t size) |
| { |
| return SSL_write(ssl_, ptr, size); |
| } |
| |
| inline int SSLSocketStream::write(const char* ptr) |
| { |
| return write(ptr, strlen(ptr)); |
| } |
| |
| inline std::string SSLSocketStream::get_remote_addr() { |
| return detail::get_remote_addr(sock_); |
| } |
| |
| // SSL HTTP server implementation |
| inline SSLServer::SSLServer(const char* cert_path, const char* private_key_path) |
| { |
| ctx_ = SSL_CTX_new(SSLv23_server_method()); |
| |
| if (ctx_) { |
| SSL_CTX_set_options(ctx_, |
| SSL_OP_ALL | SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3 | |
| SSL_OP_NO_COMPRESSION | |
| SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION); |
| |
| // auto ecdh = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1); |
| // SSL_CTX_set_tmp_ecdh(ctx_, ecdh); |
| // EC_KEY_free(ecdh); |
| |
| if (SSL_CTX_use_certificate_file(ctx_, cert_path, SSL_FILETYPE_PEM) != 1 || |
| SSL_CTX_use_PrivateKey_file(ctx_, private_key_path, SSL_FILETYPE_PEM) != 1) { |
| SSL_CTX_free(ctx_); |
| ctx_ = nullptr; |
| } |
| } |
| } |
| |
| inline SSLServer::~SSLServer() |
| { |
| if (ctx_) { |
| SSL_CTX_free(ctx_); |
| } |
| } |
| |
| inline bool SSLServer::is_valid() const |
| { |
| return ctx_; |
| } |
| |
| inline bool SSLServer::read_and_close_socket(socket_t sock) |
| { |
| return detail::read_and_close_socket_ssl( |
| sock, |
| keep_alive_max_count_, |
| ctx_, ctx_mutex_, |
| SSL_accept, |
| [](SSL* /*ssl*/) {}, |
| [this](Stream& strm, bool last_connection, bool& connection_close) { |
| return process_request(strm, last_connection, connection_close); |
| }); |
| } |
| |
| // SSL HTTP client implementation |
| inline SSLClient::SSLClient(const char* host, int port, size_t timeout_sec) |
| : Client(host, port, timeout_sec) |
| { |
| ctx_ = SSL_CTX_new(SSLv23_client_method()); |
| } |
| |
| inline SSLClient::~SSLClient() |
| { |
| if (ctx_) { |
| SSL_CTX_free(ctx_); |
| } |
| } |
| |
| inline bool SSLClient::is_valid() const |
| { |
| return ctx_; |
| } |
| |
| inline bool SSLClient::read_and_close_socket(socket_t sock, Request& req, Response& res) |
| { |
| return is_valid() && detail::read_and_close_socket_ssl( |
| sock, 0, |
| ctx_, ctx_mutex_, |
| SSL_connect, |
| [&](SSL* ssl) { |
| SSL_set_tlsext_host_name(ssl, host_.c_str()); |
| }, |
| [&](Stream& strm, bool /*last_connection*/, bool& connection_close) { |
| return process_request(strm, req, res, connection_close); |
| }); |
| } |
| #endif |
| |
| } // namespace httplib |
| |
| #endif |
| |
| // vim: et ts=4 sw=4 cin cino={1s ff=unix |
