/* This function is the entrypoint for the library and * loads definitions of the 'web' scope */
int cortexmain(int argc, char* argv[]) {
CX_UNUSED(argc);
CX_UNUSED(argv);
int result = web_load();
/* $begin(cortexmain) */
/* Insert user-code here */
/* $end */
return result;
}
/*forward response (lines/headers/body) to client*/
int forward_response(rio_t *rio_server, char *uri, char *resp_buf, int connfd)
{
char response[MAX_OBJECT_SIZE];
char resp_body[MAX_OBJECT_SIZE];
char resp_line[MAXLINE];
int resp_size = 0;
int length = 0;
int body_size = 0;
int content_len = -1;
int cont_size = 0;
#if 1
if((web_load(uri, response)) == 0)
{
printf("Cache hit!\n");
if(rio_writen(connfd, response, sizeof(response)) < 0)
{
fprintf(stderr, "rio_writen send cache response error\n");
return -1;
}
memset(response, 0, sizeof(response));
return 0;
}
#endif
/*send reponse line and headers to client*/
while((length = rio_readlineb(rio_server, resp_line, MAXLINE)) > 0)
{
strcat(response, resp_line);
/* send headers to clinet*/
if (rio_writen(connfd, resp_line, length) < 0) {
fprintf(stderr, "Error: rio_writen() in forward_response header: %s\n", strerror(errno));
DEBUG_PRINT("Error: rio_writen() in forward_response header\n");
return -1;
}
/*empty line between headers and body*/
if(strcmp(resp_line, "\r\n") == 0)
break;
/* get size of response body from response header: Content-Length */
if (strstr(resp_line, "Content-Length: ")) {
content_len = parse_num(resp_line);
if(content_len < 0)
{
fprintf(stderr, "Error get Content-Length: %s", resp_line);
DEBUG_PRINT("Error get Content-Length\n");
Close(connfd);
return -1;
}
}
memset(resp_line, 0, sizeof(resp_line));
resp_size += length;
}
/*w/o content length in response headers*/
if(content_len == -1)
content_len = MAX_OBJECT_SIZE;
cont_size = MIN(content_len, MAX_OBJECT_SIZE);
/* Send response body to client */
#if DEBUG
/* send fake response body */
Rio_writen(connfd, test, strlen(test));
#else
while((length = rio_readnb(rio_server, resp_body, cont_size)) > 0)
{
strcat(response, resp_body);
if (rio_writen(connfd, resp_body, length) < 0) {
fprintf(stderr, "rio_writen in forward_response body error: %s!", strerror(errno));
DEBUG_PRINT("rio_writen in forward_response body error!");
return -1;
}
body_size += length;
}
#endif
#if 1
resp_size += body_size;
if(resp_size <= MAX_OBJECT_SIZE)
{
if(web_store(uri, response) < 0) //store response in cache
{
printf("web_store, cache error!\n");
return -1;
}
}
#endif
#if 0
srcfd = Open(filename, O_RDONLY, 0);
srcp = Mmap(0, filesize, PROT_READ, MAP_PRIVATE, srcfd, 0);
Close(srcfd);
Rio_writen(fd, srcp, filesize);
Munmap(srcp, filesize);
#endif
return 0;
}
