I2P: End-to-End encrypted and anonymous Internet https://i2pd.website/
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/*
* Copyright (c) 2013-2016, The PurpleI2P Project
*
* This file is part of Purple i2pd project and licensed under BSD3
*
* See full license text in LICENSE file at top of project tree
*/
#ifndef HTTP_H__
#define HTTP_H__
#include <cstring>
#include <map>
#include <sstream>
#include <string>
#include <vector>
namespace i2p {
namespace http {
const char CRLF[] = "\r\n"; /**< HTTP line terminator */
const char HTTP_EOH[] = "\r\n\r\n"; /**< HTTP end-of-headers mark */
extern const std::vector<std::string> HTTP_METHODS; /**< list of valid HTTP methods */
extern const std::vector<std::string> HTTP_VERSIONS; /**< list of valid HTTP versions */
struct URL {
std::string schema;
std::string user;
std::string pass;
std::string host;
unsigned short int port;
std::string path;
std::string query;
std::string frag;
URL(): schema(""), user(""), pass(""), host(""), port(0), path(""), query(""), frag("") {};
/**
* @brief Tries to parse url from string
* @return true on success, false on invalid url
*/
bool parse (const char *str, size_t len = 0);
bool parse (const std::string& url);
/**
* @brief Parse query part of url to key/value map
* @note Honestly, this should be implemented with std::multimap
*/
bool parse_query(std::map<std::string, std::string> & params);
/**
* @brief Serialize URL structure to url
* @note Returns relative url if schema if empty, absolute url otherwise
*/
std::string to_string ();
};
struct HTTPReq {
std::map<std::string, std::string> headers;
std::string version;
std::string method;
std::string uri;
std::string host;
HTTPReq (): version("HTTP/1.0"), method("GET"), uri("/") {};
/**
* @brief Tries to parse HTTP request from string
* @return -1 on error, 0 on incomplete query, >0 on success
* @note Positive return value is a size of header
*/
int parse(const char *buf, size_t len);
int parse(const std::string& buf);
/** @brief Serialize HTTP request to string */
std::string to_string();
};
struct HTTPRes {
std::map<std::string, std::string> headers;
std::string version;
std::string status;
unsigned short int code;
HTTPRes (): version("HTTP/1.1"), status("OK"), code(200) {}
/**
* @brief Tries to parse HTTP response from string
* @return -1 on error, 0 on incomplete query, >0 on success
* @note Positive return value is a size of header
*/
int parse(const char *buf, size_t len);
int parse(const std::string& buf);
/** @brief Serialize HTTP response to string */
std::string to_string();
/** @brief Checks that response declared as chunked data */
bool is_chunked();
/** @brief Returns declared response length or -1 if unknown */
long int length();
};
/**
* @brief returns HTTP status string by integer code
* @param code HTTP code [100, 599]
* @return Immutable string with status
*/
const char * HTTPCodeToStatus(int code);
/**
* @brief Replaces %-encoded characters in string with their values
* @param data Source string
* @param null If set to true - decode also %00 sequence, otherwise - skip
* @return Decoded string
*/
std::string UrlDecode(const std::string& data, bool null = false);
} // http
} // i2p
#endif /* HTTP_H__ */