server.c

/*
** COMP30023_2019SM1 Project1
** Code completed by Xun Zhang (854776)
**
** Reference
** "http-server.c" from Lab 6
*/

#include <errno.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include <arpa/inet.h>
#include <fcntl.h>
#include <netdb.h>
#include <netinet/in.h>
#include <strings.h>
#include <sys/select.h>
#include <sys/sendfile.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>

// constants
static char const* const HTTP_200_FORMAT =
    "HTTP/1.1 200 OK\r\n\
Content-Type: text/html\r\n\
Content-Length: %ld\r\n\r\n";
static char const* const HTTP_400 =
    "HTTP/1.1 400 Bad Request\r\nContent-Length: 0\r\n\r\n";
static int const HTTP_400_LENGTH = 47;
static char const* const HTTP_404 =
    "HTTP/1.1 404 Not Found\r\nContent-Length: 0\r\n\r\n";
static int const HTTP_404_LENGTH = 45;

static char const* const INTRO_PAGE = "./views/1_intro.html";
static char const* const START_PAGE = "./views/2_start.html";
static char const* const FIRST_TURN_PAGE = "./views/3_first_turn.html";
static char const* const ACCEPTED_PAGE = "./views/4_accepted.html";
static char const* const DISCARDED_PAGE = "./views/5_discarded.html";
static char const* const ENDGAME_PAGE = "./views/6_endgame.html";
static char const* const GAMEOVER_PAGE = "./views/7_gameover.html";

bool is_end_game, is_quit_game;
bool p1_is_ready, p2_is_ready;
int p1_sockfd, p2_sockfd;
// assume we can save 2000 keywords from each player,
// and 200 words for each keyword
char p1_guess[2000][200], p2_guess[2000][200];
int p1_guess_len, p2_guess_len;

// represents the types of method
typedef enum { GET, POST, UNKNOWN } METHOD;

// methods reference
void run_server(const char* ip, const int port);
int create_server_socket(const char* ip, const int port);
static bool handle_http_request(int sockfd);
bool show_page(int sockfd, const char* htmldir);
bool show_modified_page(int sockfd, const char* htmldir, char* added,
                        int inset_index);
bool show_start_page(int sockfd, char* username);
bool show_accepted_page(int sockfd);
void print_buff(char* request); // test method
bool keyword_check(int sockfd, char* keyword);
void player_init();