mirror of
https://github.com/zerotier/ZeroTierOne.git
synced 2024-12-19 21:17:52 +00:00
2780 lines
76 KiB
C++
2780 lines
76 KiB
C++
//
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// httplib.h
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//
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// Copyright (c) 2019 Yuji Hirose. All rights reserved.
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// MIT License
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//
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#ifndef CPPHTTPLIB_HTTPLIB_H
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#define CPPHTTPLIB_HTTPLIB_H
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#ifdef _WIN32
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#ifndef _CRT_SECURE_NO_WARNINGS
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#define _CRT_SECURE_NO_WARNINGS
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#endif //_CRT_SECURE_NO_WARNINGS
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#ifndef _CRT_NONSTDC_NO_DEPRECATE
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#define _CRT_NONSTDC_NO_DEPRECATE
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#endif //_CRT_NONSTDC_NO_DEPRECATE
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#if defined(_MSC_VER) && _MSC_VER < 1900
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#define snprintf _snprintf_s
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#endif // _MSC_VER
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#ifndef S_ISREG
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#define S_ISREG(m) (((m)&S_IFREG) == S_IFREG)
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#endif // S_ISREG
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#ifndef S_ISDIR
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#define S_ISDIR(m) (((m)&S_IFDIR) == S_IFDIR)
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#endif // S_ISDIR
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#ifndef NOMINMAX
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#define NOMINMAX
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#endif // NOMINMAX
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#include <io.h>
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#include <winsock2.h>
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#include <ws2tcpip.h>
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#pragma comment(lib, "ws2_32.lib")
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#ifndef strcasecmp
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#define strcasecmp _stricmp
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#endif // strcasecmp
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typedef SOCKET socket_t;
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#else
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#include <arpa/inet.h>
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#include <cstring>
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#include <netdb.h>
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#include <netinet/in.h>
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#include <pthread.h>
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#include <signal.h>
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#include <sys/select.h>
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#include <sys/socket.h>
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#include <unistd.h>
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typedef int socket_t;
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#define INVALID_SOCKET (-1)
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#endif //_WIN32
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#include <assert.h>
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#include <atomic>
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#include <fcntl.h>
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#include <fstream>
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#include <functional>
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#include <map>
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#include <memory>
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#include <mutex>
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#include <regex>
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#include <string>
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#include <sys/stat.h>
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#include <thread>
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#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
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#include <openssl/err.h>
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#include <openssl/ssl.h>
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#include <openssl/x509v3.h>
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#if OPENSSL_VERSION_NUMBER < 0x10100000L
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inline const unsigned char *ASN1_STRING_get0_data(const ASN1_STRING *asn1) {
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return M_ASN1_STRING_data(asn1);
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}
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#endif
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#endif
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#ifdef CPPHTTPLIB_ZLIB_SUPPORT
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#include <zlib.h>
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#endif
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/*
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* Configuration
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*/
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#define CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND 5
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#define CPPHTTPLIB_KEEPALIVE_TIMEOUT_USECOND 0
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#define CPPHTTPLIB_KEEPALIVE_MAX_COUNT 5
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#define CPPHTTPLIB_READ_TIMEOUT_SECOND 5
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#define CPPHTTPLIB_READ_TIMEOUT_USECOND 0
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#define CPPHTTPLIB_REQUEST_URI_MAX_LENGTH 8192
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#define CPPHTTPLIB_PAYLOAD_MAX_LENGTH (std::numeric_limits<size_t>::max)()
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#define CPPHTTPLIB_RECV_BUFSIZ size_t(4096u)
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namespace httplib {
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namespace detail {
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struct ci {
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bool operator()(const std::string &s1, const std::string &s2) const {
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return std::lexicographical_compare(
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s1.begin(), s1.end(), s2.begin(), s2.end(),
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[](char c1, char c2) { return ::tolower(c1) < ::tolower(c2); });
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}
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};
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} // namespace detail
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enum class HttpVersion { v1_0 = 0, v1_1 };
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typedef std::multimap<std::string, std::string, detail::ci> Headers;
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template <typename uint64_t, typename... Args>
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std::pair<std::string, std::string> make_range_header(uint64_t value,
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Args... args);
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typedef std::multimap<std::string, std::string> Params;
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typedef std::smatch Match;
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typedef std::function<std::string(uint64_t offset)> ContentProducer;
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typedef std::function<void(const char *data, size_t len)> ContentReceiver;
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typedef std::function<bool(uint64_t current, uint64_t total)> Progress;
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struct MultipartFile {
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std::string filename;
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std::string content_type;
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size_t offset = 0;
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size_t length = 0;
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};
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typedef std::multimap<std::string, MultipartFile> MultipartFiles;
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struct Request {
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std::string version;
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std::string method;
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std::string target;
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std::string path;
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Headers headers;
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std::string body;
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Params params;
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MultipartFiles files;
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Match matches;
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#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
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const SSL *ssl;
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#endif
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bool has_header(const char *key) const;
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std::string get_header_value(const char *key, size_t id = 0) const;
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size_t get_header_value_count(const char *key) const;
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void set_header(const char *key, const char *val);
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bool has_param(const char *key) const;
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std::string get_param_value(const char *key, size_t id = 0) const;
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size_t get_param_value_count(const char *key) const;
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bool has_file(const char *key) const;
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MultipartFile get_file_value(const char *key) const;
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};
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struct Response {
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std::string version;
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int status;
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Headers headers;
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std::string body;
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ContentProducer content_producer;
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ContentReceiver content_receiver;
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Progress progress;
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bool has_header(const char *key) const;
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std::string get_header_value(const char *key, size_t id = 0) const;
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size_t get_header_value_count(const char *key) const;
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void set_header(const char *key, const char *val);
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void set_redirect(const char *uri);
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void set_content(const char *s, size_t n, const char *content_type);
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void set_content(const std::string &s, const char *content_type);
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Response() : status(-1) {}
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};
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class Stream {
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public:
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virtual ~Stream() {}
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virtual int read(char *ptr, size_t size) = 0;
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virtual int write(const char *ptr, size_t size1) = 0;
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virtual int write(const char *ptr) = 0;
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virtual std::string get_remote_addr() const = 0;
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template <typename... Args>
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void write_format(const char *fmt, const Args &... args);
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};
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class SocketStream : public Stream {
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public:
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SocketStream(socket_t sock);
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virtual ~SocketStream();
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virtual int read(char *ptr, size_t size);
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virtual int write(const char *ptr, size_t size);
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virtual int write(const char *ptr);
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virtual std::string get_remote_addr() const;
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private:
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socket_t sock_;
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};
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class BufferStream : public Stream {
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public:
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BufferStream() {}
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virtual ~BufferStream() {}
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virtual int read(char *ptr, size_t size);
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virtual int write(const char *ptr, size_t size);
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virtual int write(const char *ptr);
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virtual std::string get_remote_addr() const;
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const std::string &get_buffer() const;
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private:
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std::string buffer;
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};
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class Server {
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public:
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typedef std::function<void(const Request &, Response &)> Handler;
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typedef std::function<void(const Request &, const Response &)> Logger;
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Server();
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virtual ~Server();
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virtual bool is_valid() const;
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Server &Get(const char *pattern, Handler handler);
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Server &Post(const char *pattern, Handler handler);
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Server &Put(const char *pattern, Handler handler);
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Server &Patch(const char *pattern, Handler handler);
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Server &Delete(const char *pattern, Handler handler);
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Server &Options(const char *pattern, Handler handler);
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bool set_base_dir(const char *path);
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void set_error_handler(Handler handler);
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void set_logger(Logger logger);
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void set_keep_alive_max_count(size_t count);
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void set_payload_max_length(uint64_t length);
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int bind_to_any_port(const char *host, int socket_flags = 0);
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bool listen_after_bind();
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bool listen(const char *host, int port, int socket_flags = 0);
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bool is_running() const;
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void stop();
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protected:
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bool process_request(Stream &strm, bool last_connection,
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bool &connection_close,
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std::function<void(Request &)> setup_request = nullptr);
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size_t keep_alive_max_count_;
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size_t payload_max_length_;
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private:
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typedef std::vector<std::pair<std::regex, Handler>> Handlers;
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socket_t create_server_socket(const char *host, int port,
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int socket_flags) const;
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int bind_internal(const char *host, int port, int socket_flags);
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bool listen_internal();
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bool routing(Request &req, Response &res);
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bool handle_file_request(Request &req, Response &res);
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bool dispatch_request(Request &req, Response &res, Handlers &handlers);
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bool parse_request_line(const char *s, Request &req);
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void write_response(Stream &strm, bool last_connection, const Request &req,
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Response &res);
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virtual bool read_and_close_socket(socket_t sock);
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std::atomic<bool> is_running_;
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std::atomic<socket_t> svr_sock_;
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std::string base_dir_;
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Handlers get_handlers_;
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Handlers post_handlers_;
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Handlers put_handlers_;
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Handlers patch_handlers_;
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Handlers delete_handlers_;
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Handlers options_handlers_;
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Handler error_handler_;
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Logger logger_;
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// TODO: Use thread pool...
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std::mutex running_threads_mutex_;
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int running_threads_;
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};
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class Client {
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public:
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Client(const char *host, int port = 80, time_t timeout_sec = 300);
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virtual ~Client();
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virtual bool is_valid() const;
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std::shared_ptr<Response> Get(const char *path, Progress progress = nullptr);
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std::shared_ptr<Response> Get(const char *path, const Headers &headers,
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Progress progress = nullptr);
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std::shared_ptr<Response> Get(const char *path,
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ContentReceiver content_receiver,
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Progress progress = nullptr);
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std::shared_ptr<Response> Get(const char *path, const Headers &headers,
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ContentReceiver content_receiver,
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Progress progress = nullptr);
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std::shared_ptr<Response> Head(const char *path);
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std::shared_ptr<Response> Head(const char *path, const Headers &headers);
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std::shared_ptr<Response> Post(const char *path, const std::string &body,
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const char *content_type);
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std::shared_ptr<Response> Post(const char *path, const Headers &headers,
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const std::string &body,
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const char *content_type);
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std::shared_ptr<Response> Post(const char *path, const Params ¶ms);
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std::shared_ptr<Response> Post(const char *path, const Headers &headers,
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const Params ¶ms);
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std::shared_ptr<Response> Put(const char *path, const std::string &body,
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const char *content_type);
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std::shared_ptr<Response> Put(const char *path, const Headers &headers,
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const std::string &body,
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const char *content_type);
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std::shared_ptr<Response> Patch(const char *path, const std::string &body,
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const char *content_type);
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std::shared_ptr<Response> Patch(const char *path, const Headers &headers,
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const std::string &body,
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const char *content_type);
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std::shared_ptr<Response> Delete(const char *path,
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const std::string &body = std::string(),
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const char *content_type = nullptr);
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std::shared_ptr<Response> Delete(const char *path, const Headers &headers,
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const std::string &body = std::string(),
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const char *content_type = nullptr);
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std::shared_ptr<Response> Options(const char *path);
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std::shared_ptr<Response> Options(const char *path, const Headers &headers);
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bool send(Request &req, Response &res);
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protected:
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bool process_request(Stream &strm, Request &req, Response &res,
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bool &connection_close);
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const std::string host_;
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const int port_;
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time_t timeout_sec_;
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const std::string host_and_port_;
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private:
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socket_t create_client_socket() const;
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bool read_response_line(Stream &strm, Response &res);
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void write_request(Stream &strm, Request &req);
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virtual bool read_and_close_socket(socket_t sock, Request &req,
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Response &res);
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virtual bool is_ssl() const;
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};
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#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
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class SSLSocketStream : public Stream {
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public:
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SSLSocketStream(socket_t sock, SSL *ssl);
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virtual ~SSLSocketStream();
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virtual int read(char *ptr, size_t size);
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virtual int write(const char *ptr, size_t size);
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virtual int write(const char *ptr);
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virtual std::string get_remote_addr() const;
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private:
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socket_t sock_;
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SSL *ssl_;
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};
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class SSLServer : public Server {
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public:
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SSLServer(const char *cert_path, const char *private_key_path,
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const char *client_ca_cert_file_path = nullptr,
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const char *client_ca_cert_dir_path = nullptr);
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virtual ~SSLServer();
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virtual bool is_valid() const;
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private:
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virtual bool read_and_close_socket(socket_t sock);
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SSL_CTX *ctx_;
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std::mutex ctx_mutex_;
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};
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class SSLClient : public Client {
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public:
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SSLClient(const char *host, int port = 443, time_t timeout_sec = 300,
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const char *client_cert_path = nullptr,
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const char *client_key_path = nullptr);
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virtual ~SSLClient();
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virtual bool is_valid() const;
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void set_ca_cert_path(const char *ca_ceert_file_path,
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const char *ca_cert_dir_path = nullptr);
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void enable_server_certificate_verification(bool enabled);
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long get_openssl_verify_result() const;
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private:
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virtual bool read_and_close_socket(socket_t sock, Request &req,
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Response &res);
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virtual bool is_ssl() const;
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bool verify_host(X509 *server_cert) const;
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bool verify_host_with_subject_alt_name(X509 *server_cert) const;
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bool verify_host_with_common_name(X509 *server_cert) const;
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bool check_host_name(const char *pattern, size_t pattern_len) const;
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SSL_CTX *ctx_;
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std::mutex ctx_mutex_;
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std::vector<std::string> host_components_;
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std::string ca_cert_file_path_;
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std::string ca_cert_dir_path_;
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bool server_certificate_verification_ = false;
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long verify_result_ = 0;
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};
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#endif
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/*
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* Implementation
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*/
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namespace detail {
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inline bool is_hex(char c, int &v) {
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if (0x20 <= c && isdigit(c)) {
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v = c - '0';
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return true;
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} else if ('A' <= c && c <= 'F') {
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v = c - 'A' + 10;
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return true;
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} else if ('a' <= c && c <= 'f') {
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v = c - 'a' + 10;
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return true;
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}
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return false;
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}
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inline bool from_hex_to_i(const std::string &s, size_t i, size_t cnt,
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int &val) {
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if (i >= s.size()) { return false; }
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val = 0;
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for (; cnt; i++, cnt--) {
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if (!s[i]) { return false; }
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int v = 0;
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if (is_hex(s[i], v)) {
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val = val * 16 + v;
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} else {
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return false;
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}
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}
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return true;
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}
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inline std::string from_i_to_hex(uint64_t n) {
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const char *charset = "0123456789abcdef";
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std::string ret;
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do {
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ret = charset[n & 15] + ret;
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n >>= 4;
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} while (n > 0);
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return ret;
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}
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inline size_t to_utf8(int code, char *buff) {
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if (code < 0x0080) {
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buff[0] = (code & 0x7F);
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return 1;
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} else if (code < 0x0800) {
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buff[0] = (0xC0 | ((code >> 6) & 0x1F));
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buff[1] = (0x80 | (code & 0x3F));
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return 2;
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} else if (code < 0xD800) {
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buff[0] = (0xE0 | ((code >> 12) & 0xF));
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buff[1] = (0x80 | ((code >> 6) & 0x3F));
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buff[2] = (0x80 | (code & 0x3F));
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return 3;
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} else if (code < 0xE000) { // D800 - DFFF is invalid...
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return 0;
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} else if (code < 0x10000) {
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buff[0] = (0xE0 | ((code >> 12) & 0xF));
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buff[1] = (0x80 | ((code >> 6) & 0x3F));
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buff[2] = (0x80 | (code & 0x3F));
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return 3;
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} else if (code < 0x110000) {
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buff[0] = (0xF0 | ((code >> 18) & 0x7));
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buff[1] = (0x80 | ((code >> 12) & 0x3F));
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buff[2] = (0x80 | ((code >> 6) & 0x3F));
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|
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 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
|
|
#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 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";
|
|
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_len, T callback) {
|
|
int ret = Z_OK;
|
|
std::string decompressed;
|
|
|
|
// strm.avail_in = content.size();
|
|
// strm.next_in = (Bytef *)content.data();
|
|
strm.avail_in = data_len;
|
|
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;
|
|
}
|
|
|
|
decompressed.append(buff, bufsiz - strm.avail_out);
|
|
} while (strm.avail_out == 0);
|
|
|
|
if (ret == Z_STREAM_END) {
|
|
callback(decompressed.data(), decompressed.size());
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
template <typename T>
|
|
inline bool read_content_with_length(Stream &strm, size_t len,
|
|
Progress progress, T callback) {
|
|
char buf[CPPHTTPLIB_RECV_BUFSIZ];
|
|
|
|
size_t r = 0;
|
|
while (r < len) {
|
|
auto n = strm.read(buf, std::min((len - r), CPPHTTPLIB_RECV_BUFSIZ));
|
|
if (n <= 0) { return false; }
|
|
|
|
callback(buf, n);
|
|
|
|
r += n;
|
|
|
|
if (progress) {
|
|
if (!progress(r, len)) { return false; }
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
inline void skip_content_with_length(Stream &strm, size_t len) {
|
|
char buf[CPPHTTPLIB_RECV_BUFSIZ];
|
|
size_t r = 0;
|
|
while (r < len) {
|
|
auto n = strm.read(buf, std::min((len - r), CPPHTTPLIB_RECV_BUFSIZ));
|
|
if (n <= 0) { return; }
|
|
r += n;
|
|
}
|
|
}
|
|
|
|
template <typename T>
|
|
inline bool read_content_without_length(Stream &strm, T callback) {
|
|
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;
|
|
}
|
|
callback(buf, n);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
template <typename T>
|
|
inline bool read_content_chunked(Stream &strm, T callback) {
|
|
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, callback)) {
|
|
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, typename U>
|
|
bool read_content(Stream &strm, T &x, uint64_t payload_max_length, int &status,
|
|
Progress progress, U callback) {
|
|
|
|
ContentReceiver out = [&](const char *buf, size_t n) { callback(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) {
|
|
decompressor.decompress(
|
|
buf, n, [&](const char *buf, size_t n) { callback(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 > 0) {
|
|
if ((len > payload_max_length) ||
|
|
// For 32-bit platform
|
|
(sizeof(size_t) < sizeof(uint64_t) &&
|
|
len > std::numeric_limits<size_t>::max())) {
|
|
exceed_payload_max_length = true;
|
|
skip_content_with_length(strm, len);
|
|
ret = false;
|
|
} else {
|
|
ret = read_content_with_length(strm, len, progress, out);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!ret) { status = exceed_payload_max_length ? 413 : 400; }
|
|
|
|
return ret;
|
|
}
|
|
|
|
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");
|
|
}
|
|
|
|
template <typename T>
|
|
inline void write_content_chunked(Stream &strm, const T &x) {
|
|
auto chunked_response = !x.has_header("Content-Length");
|
|
uint64_t offset = 0;
|
|
auto data_available = true;
|
|
while (data_available) {
|
|
auto chunk = x.content_producer(offset);
|
|
offset += chunk.size();
|
|
data_available = !chunk.empty();
|
|
|
|
// Emit chunked response header and footer for each chunk
|
|
if (chunked_response) {
|
|
chunk = from_i_to_hex(chunk.size()) + "\r\n" + chunk + "\r\n";
|
|
}
|
|
|
|
if (strm.write(chunk.c_str(), chunk.size()) < 0) {
|
|
break; // Stop on error
|
|
}
|
|
}
|
|
}
|
|
|
|
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 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 _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);
|
|
}
|
|
|
|
|
|
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 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_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) {
|
|
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 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) {
|
|
size_t size = strlen(ptr);
|
|
buffer.append(ptr, size);
|
|
return static_cast<int>(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), 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::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_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(uint64_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 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.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.body.empty()) {
|
|
if (!res.has_header("Content-Length")) {
|
|
if (res.content_producer) {
|
|
// Streamed response
|
|
res.set_header("Transfer-Encoding", "chunked");
|
|
} else {
|
|
res.set_header("Content-Length", "0");
|
|
}
|
|
}
|
|
} else {
|
|
#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
|
|
|
|
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 (req.method != "HEAD") {
|
|
if (!res.body.empty()) {
|
|
strm.write(res.body.c_str(), res.body.size());
|
|
} else if (res.content_producer) {
|
|
detail::write_content_chunked(strm, res);
|
|
}
|
|
}
|
|
|
|
// 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, 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;
|
|
|
|
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;
|
|
}
|
|
|
|
// 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 == "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) {
|
|
res.status = 414;
|
|
write_response(strm, last_connection, req, res);
|
|
return true;
|
|
}
|
|
|
|
// 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;
|
|
}
|
|
|
|
if (req.get_header_value("Connection") == "close") {
|
|
connection_close = true;
|
|
}
|
|
|
|
req.set_header("REMOTE_ADDR", strm.get_remote_addr().c_str());
|
|
|
|
// 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) { req.body.append(buf, n); })) {
|
|
write_response(strm, last_connection, req, res);
|
|
return true;
|
|
}
|
|
|
|
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;
|
|
write_response(strm, last_connection, req, res);
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
// TODO: Add additional request info
|
|
if (setup_request) { setup_request(req); }
|
|
|
|
if (routing(req, res)) {
|
|
if (res.status == -1) { res.status = 200; }
|
|
} else {
|
|
res.status = 404;
|
|
}
|
|
|
|
write_response(strm, last_connection, req, res);
|
|
return true;
|
|
}
|
|
|
|
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, time_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, 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 read_and_close_socket(sock, req, res);
|
|
}
|
|
|
|
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_.c_str());
|
|
} else {
|
|
req.set_header("Host", host_and_port_.c_str());
|
|
}
|
|
} else {
|
|
if (port_ == 80) {
|
|
req.set_header("Host", host_.c_str());
|
|
} else {
|
|
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.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.c_str());
|
|
}
|
|
}
|
|
|
|
detail::write_headers(bstrm, req);
|
|
|
|
// Body
|
|
if (!req.body.empty()) { bstrm.write(req.body.c_str(), req.body.size()); }
|
|
|
|
// 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") {
|
|
ContentReceiver out = [&](const char *buf, size_t n) {
|
|
res.body.append(buf, n);
|
|
};
|
|
|
|
if (res.content_receiver) {
|
|
out = [&](const char *buf, size_t n) { res.content_receiver(buf, n); };
|
|
}
|
|
|
|
int dummy_status;
|
|
if (!detail::read_content(strm, res, std::numeric_limits<uint64_t>::max(),
|
|
dummy_status, res.progress, out)) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
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 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;
|
|
|
|
auto res = std::make_shared<Response>();
|
|
res->progress = progress;
|
|
|
|
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;
|
|
|
|
auto res = std::make_shared<Response>();
|
|
res->content_receiver = content_receiver;
|
|
res->progress = progress;
|
|
|
|
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::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;
|
|
}
|
|
|
|
/*
|
|
* 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) {
|
|
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 > 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(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;
|
|
}
|
|
|
|
class SSLInit {
|
|
public:
|
|
SSLInit() {
|
|
SSL_load_error_strings();
|
|
SSL_library_init();
|
|
}
|
|
|
|
~SSLInit() { ERR_free_strings(); }
|
|
};
|
|
|
|
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 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::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*/) { 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::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 *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 process_request(strm, req, res, 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;
|
|
|
|
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);
|
|
}
|
|
|
|
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
|