Now working for simple, non-encrypted requests

making requests to something like example.com over a non-encrypted
connection now works. Binary files are unlikely to work at the moment
although I haven't tried. Also, non-encrypted doesn't work.

I have also changed a little about how tests work. Requests tests now
display much better.

src/proxy.c

@@ -1,12 +1,50 @@
 #include "proxy.h"
 
-void proxy_startListener(unsigned int port){
+Response *upstreamGetResponse(Request *request){
+	//Here we pretend to be a client
 
+	int client_fd = 0;
+	struct sockaddr_in address;
+	memset( &address, 0, sizeof(address) );
+	struct hostent *host = gethostbyname(request->host);
+	Response *rsp = NULL;
+
+	if ((client_fd = socket(AF_INET, SOCK_STREAM, 0)) == 0){
+		perror("socket failed");
+		return NULL;
+	}
+
+
+	address.sin_family = AF_INET;
+	address.sin_port = htons( 80 );
+	// We want the request to go out to whatever the host was resolved to
+	memcpy( &address.sin_addr, host->h_addr_list[0], host->h_length );
+
+	if((connect(client_fd, (struct sockaddr *)&address, sizeof(address)))<0)  {  
+		perror("connect failed");
+		return NULL;
+	}
+
+	char *toSend = requestToString(request);
+
+	if ( write( client_fd, toSend, strlen(toSend) ) != strlen(toSend) ){
+		perror( "Write Error" );
+		return NULL;
+	}
+
+	rsp = newResponseFromSocket( client_fd );
+
+	return rsp;
+
+}
+
+void proxy_startListener(unsigned int port){
+	//we need to act as an http server
 	int server_fd, new_socket;
     struct sockaddr_in address;
-    int opt = 1;
+	memset( &address, 0, sizeof(address) );
     int addrlen = sizeof(address);
-	char *response;
+	Response *response;
 
     // Creating socket file descriptor
     if ((server_fd = socket(AF_INET, SOCK_STREAM, 0)) == 0) {
@@ -30,25 +68,44 @@ void proxy_startListener(unsigned int port){
     }
 
 	while ( true ){
-		printf("Listening\n");
+		printf("Listening on port %i\n", port);
 		if ((new_socket = accept(server_fd, (struct sockaddr *)&address, 
 				(socklen_t*)&addrlen))<0) {
 			perror("accept");
 			return ;
 		}
 
+		//I think eventually I'd like a different thread here for each request
+		//Not sure how to do that yet though so I'll keep everything on the main
+		//thread
+
 		Request *request = newRequestFromSocket(new_socket);
 
+		//If this is an https request - this is the first part
+		if ( strcmp( request->method, "CONNECT" ) == 0 ){
+			printf("\n\n%s\n\n", requestToString( request ));
+		}
+
+		// If the host is not defined, then it is not a proxy request
+		// Note that the host here is where the request should be sent, not
+		// necesarily the hosts header
 		if ( strcmp( request->host, "" ) == 0 ){
 			response = webserverGetResponse(request);
 		} else {
-			printf("This is a proxy request\n");
+			response = upstreamGetResponse(request);
 		}
 
-		send(new_socket , response, strlen(response) , 0 );
+		char *responseStr = responseToString( response );
 
+		// I'm also not convinced that strlen is the best function to use here
+		// When we get to dealing with binary requests / responses, they may
+		// well have null characters in them
+		send(new_socket , responseStr, strlen(responseStr) , 0 );
 
-		//close(new_socket);
+		close(new_socket);
+		freeRequest( request );
+		freeResponse( response );
+		free(responseStr);
 	}
 
 }