diff --git a/image_tagger.c b/image_tagger.c
index d099cc5b698945560620a6bdcac0e0e31e460b8f..8b6d307d6877994dc845d71ce631caa8c6fe7f94 100644
--- a/image_tagger.c
+++ b/image_tagger.c
@@ -3,7 +3,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
-
+#include <stddef.h>
#include <arpa/inet.h>
#include <fcntl.h>
#include <netdb.h>
@@ -33,7 +33,7 @@ typedef enum
UNKNOWN
} METHOD;
-static bool handle_http_request(int sockfd)
+static bool handle_http_request(int sockfd, int player)
{
// try to read the request
char buff[2049];
@@ -49,7 +49,7 @@ static bool handle_http_request(int sockfd)
// terminate the string
buff[n] = 0;
-
+ //fwrite(buff,1,2049,stdout);
char * curr = buff;
// parse the method
@@ -74,7 +74,106 @@ static bool handle_http_request(int sockfd)
while (*curr == '.' || *curr == '/')
++curr;
// assume the only valid request URI is "/" but it can be modified to accept more files
- if (*curr == ' ')
+
+
+if (strncmp(curr, "?start", 6) == 0){
+ if (method == GET)
+ {
+ // get the size of the file
+ struct stat st;
+ stat("3_first_turn.html", &st);
+ n = sprintf(buff, HTTP_200_FORMAT, st.st_size);
+
+ // send the header first
+ if (write(sockfd, buff, n) < 0)
+ {
+ perror("write");
+ return false;
+ }
+ // send the file
+ int filefd = open("3_first_turn.html", O_RDONLY);
+ do
+ {
+ n = sendfile(sockfd, filefd, NULL, 2048);
+ }
+ while (n > 0);
+ if (n < 0)
+ {
+ perror("sendfile");
+ close(filefd);
+ return false;
+ }
+ close(filefd);
+ }
+ else if(method == POST){
+ char * quit = strstr(buff, "quit=");
+ char * guess = strstr(buff, "guess=");
+ if (quit) {
+ player -=1;
+ // get the size of the file
+ struct stat st;
+ stat("7_gameover.html", &st);
+ n = sprintf(buff, HTTP_200_FORMAT, st.st_size);
+ // send the header first
+ if (write(sockfd, buff, n) < 0)
+ {
+ perror("write");
+ return false;
+ }
+ // send the file
+ int filefd = open("7_gameover.html", O_RDONLY);
+ do
+ {
+ n = sendfile(sockfd, filefd, NULL, 2048);
+ }
+ while (n > 0);
+ if (n < 0)
+ {
+ perror("sendfile");
+ close(filefd);
+ return false;
+ }
+ close(filefd);
+ }
+ if(guess){
+ // get the size of the file
+ if(player < 2){
+ struct stat st;
+ stat("5_discarded.html", &st);
+ n = sprintf(buff, HTTP_200_FORMAT, st.st_size);
+ // send the header first
+ if (write(sockfd, buff, n) < 0)
+ {
+ perror("write");
+ return false;
+ }
+ // send the file
+ int filefd = open("5_discarded.html", O_RDONLY);
+ do
+ {
+ n = sendfile(sockfd, filefd, NULL, 2048);
+ }
+ while (n > 0);
+ if (n < 0)
+ {
+ perror("sendfile");
+ close(filefd);
+ return false;
+ }
+ close(filefd);
+ }
+ }
+
+ }
+ }
+
+
+
+
+
+
+ if (*curr == ' '){
+
if (method == GET)
{
// get the size of the file
@@ -102,70 +201,107 @@ static bool handle_http_request(int sockfd)
}
close(filefd);
}
+
else if (method == POST)
{
// locate the username, it is safe to do so in this sample code, but usually the result is expected to be
// copied to another buffer using strcpy or strncpy to ensure that it will not be overwritten.
- char * username = strstr(buff, "user=") + 5;
- int username_length = strlen(username);
- // the length needs to include the "Hi, " before the username
- long added_length = username_length + 4;
+ char * quit = strstr(buff, "quit=");
+ if (quit) {
+ player -=1;
+ // get the size of the file
+ struct stat st;
+ stat("7_gameover.html", &st);
+ n = sprintf(buff, HTTP_200_FORMAT, st.st_size);
+ // send the header first
+ if (write(sockfd, buff, n) < 0)
+ {
+ perror("write");
+ return false;
+ }
+ // send the file
+ int filefd = open("7_gameover.html", O_RDONLY);
+ do
+ {
+ n = sendfile(sockfd, filefd, NULL, 2048);
+ }
+ while (n > 0);
+ if (n < 0)
+ {
+ perror("sendfile");
+ close(filefd);
+ return false;
+ }
+ close(filefd);
+ }
+ else{
+ char * username = strstr(buff, "user=") + 5;
+ int username_length = strlen(username);
+ char userbuff[2049];
+ strncpy(userbuff, username, username_length);
+ userbuff[username_length]=0;
// get the size of the file
- struct stat st;
- stat("2_start.html", &st);
- // increase file size to accommodate the username
- long size = st.st_size + added_length;
- n = sprintf(buff, HTTP_200_FORMAT, size);
- // send the header first
- if (write(sockfd, buff, n) < 0)
- {
- perror("write");
- return false;
- }
- // read the content of the HTML file
- int filefd = open("2_start.html", O_RDONLY);
- n = read(filefd, buff, 2048);
- if (n < 0)
- {
- perror("read");
- close(filefd);
- return false;
- }
- close(filefd);
- //move the trailing part backward
- int p2;
- /*for (p1 = size - 1, p2 = p1 - added_length; p1 >= size - 25; --p1, --p2)
- buff[p1] = buff[p2];
- ++p2;*/
- // put the separator
- buff[p2++] = 'H';
- buff[p2++] ='i';
- buff[p2++] = ',';
- buff[p2++] = ' ';
- // copy the username
- strncpy(buff + p2, username, username_length);
+ struct stat st;
+ stat("2_start.html", &st);
+ // increase file size to accommodate the username
+ long size = st.st_size + username_length;
+ n = sprintf(buff, HTTP_200_FORMAT, size);
+ // send the header first
+ if (write(sockfd, buff, n) < 0)
+ {
+ perror("write");
+ return false;
+ }
+ // read the content of the HTML file
+ int filefd = open("2_start.html", O_RDONLY);
+ n = read(filefd, buff, 2048);
+ if (n < 0)
+ {
+ perror("read");
+ close(filefd);
+ return false;
+ }
+ close(filefd);
+ //move the trailing part backward
+ int p1, p2;
+ for (p1 = size - 1, p2 = p1 - username_length; p1 >= size - 17; --p1, --p2)
+ buff[p1] = buff[p2];
+
+ ++p2;
+
+ // copy the username
+
+ for(int i=0;i<username_length;i++){
+ buff[p2]=userbuff[i];
+ p2++;
+ }
+
+
if (write(sockfd, buff, size) < 0)
{
perror("write");
return false;
}
+ }
}
- else
- // never used, just for completeness
+
+ else{// never used, just for completeness
fprintf(stderr, "no other methods supported");
- // send 404
- else if (write(sockfd, HTTP_404, HTTP_404_LENGTH) < 0)
- {
- perror("write");
- return false;
+ // send 404
+ if (write(sockfd, HTTP_404, HTTP_404_LENGTH) < 0)
+ {
+ perror("write");
+ return false;
+ }
+ }
}
-
return true;
}
int main(int argc, char * argv[])
{
+ int player = 0;
if (argc < 3)
{
fprintf(stderr, "usage: %s ip port\n", argv[0]);
@@ -222,9 +358,9 @@ int main(int argc, char * argv[])
perror("select");
exit(EXIT_FAILURE);
}
-
+ int player = 0;
// loop all possible descriptor
- for (int i = 0; i <= maxfd; ++i)
+ for (int i = 0; i <= maxfd; ++i){
// determine if the current file descriptor is active
if (FD_ISSET(i, &readfds))
{
@@ -252,14 +388,17 @@ int main(int argc, char * argv[])
newsockfd
);
}
+ player += 1;
}
+
// a request is sent from the client
- else if (!handle_http_request(i))
+ else if (!handle_http_request(i, player))
{
close(i);
FD_CLR(i, &masterfds);
}
- }
+ }
+ }
}
return 0;