lib_http.h

#ifndef LIB_HTTP_H
#define LIB_HTTP_H
#include "lib_gutil.h"

/*********************** http request ***********************/

typedef struct http_request_header_struc {
    char* key;
    char* value;
}http_request_header_struc;

enum http_request_state {
    REQUEST_STATUS,    //wait parse status
    REQUEST_HEADERS,   //wait parse headers
    REQUEST_BODY,      //wait parse body
    REQUEST_DONE,       //parse finished
};

typedef struct http_request_struc {
    char* version;
    char* method;
    char* url;
    enum http_request_state current_state;
    struct http_request_header_struc* request_headers;
    int request_headers_number;
}http_request_struc;

http_request_struc* http_request_init();
void http_request_free(http_request_struc* http_request);
void http_request_reset(http_request_struc* http_request);
void http_request_add_header(http_request_struc* http_request, char* key, char* value);
char* http_request_get_header(http_request_struc* http_request, char* key);
enum http_request_state http_request_current_state(http_request_struc* http_request);
int http_request_close_connection(http_request_struc* http_request);

/************************* http response ****************************/
typedef struct http_response_header_struc {
    char* key;
    char* value;
}http_response_header_struc;

enum HttpStatusCode {
    UnKnown,
    OK = 200,
    MovePermanently = 301,
    BadRequest = 400,
    NotFound = 404,
};

typedef struct http_response_struc {
    enum HttpStatusCode status_code;
    char* status_message;
    char* content_type;
    char* body;
    http_response_header_struc* response_headers;
    int response_headers_number;
    int keep_connected;
}http_response_struc;

http_response_struc* http_response_init();
void http_response_free(http_response_struc* http_response);
void http_response_encode_buffer(http_response_struc* http_response,
    buffer_struc* output);

/************************* http server *******************************/
typedef int (*request_callback_f)(http_request_struc* http_request,
    http_response_struc* http_response);

typedef struct http_server_struc {
    tcp_server_struc* tcp_server;
    request_callback_f request_callback;
}http_server_struc;

http_server_struc* http_server_init(event_loop_struc* event_loop,
    int port, request_callback_f request_callback, int thread_num);
void http_server_start(http_server_struc* http_server);
int parse_http_request(buffer_struc* request, http_request_struc* http_request);

#endif