Resource get_resource(const char* url){
char pack[1024]={0};
char buf[1024]={0};
char redirect[256]={0},new_url[256]={0},old_url[256]={0};
static int redirect_count=0;
char* i;
char* j;
char* z;
Resource res;
Connection conn=open_url(url);
if(!conn.avaliable){
return res;
}
sprintf(pack,"GET %s HTTP/1.1\nHost: %s\nAccept: */*\nReferer: http://%s\nUser-Agent: Mozilla/4.0 (compatible; MSIE 5.00; Windows 98)\nPragma: no-cache\nCache-Control: no-cache\nConnection: close\n\n",conn.url_info.file,conn.url_info.host_name,conn.url_info.host_name);
send(conn.sock,pack,strlen(pack),0);
recv(conn.sock,buf,sizeof(buf),0);
//printf("%s\n",buf);
if(strstr(buf,"HTTP/1.1 404")!=NULL || strstr(buf,"HTTP/1.0 404")!=NULL){
return res;
}
i=(char *)strstr(buf,"Location:");
if(i!=NULL && redirect_count<5){
sscanf(i,"Location: %s",redirect);
sprintf(old_url,"%s://%s:%d%s",conn.url_info.schema,conn.url_info.host_name,conn.url_info.port,conn.url_info.file);
join_url(old_url,redirect,new_url);
//printf("@#%s\n",new_url);
redirect_count++;
return get_resource(new_url);
}
i=(char *)strstr(buf,"Content-Length:");
if(i!=NULL){
sscanf(i,"Content-Length: %d",&res.file_size);
}
strcpy(res.file_url,url);
//printf("#%d\n",res.file_size);
for(z=(char*)url;(j=strstr(z,"/"))!=NULL;){
z=j+sizeof(char);
}
strcpy(res.file_name,z);
close(conn.sock);
return res;
}
std::string join_url(std::string first, std::string second){
return join_url(ParsedUrl(first), ParsedUrl(second));
}
