HTTP GET by CFNetwork

I came across the same problem described in fraserspeirs: HTTP Nerdery, or, Why NSURLConnection Sucks For POST.I tried to send POST reqeust to a HTTP server with NSURLRequest and NSURLConnection, but nothing sent.

So I decided to use CFNetwork instead.Here is my first attempt. Because this code blocks until the server returns HTTP response, I’m modifying to non-blocking version which make use of “Run Loops”.

CFURLRef url = CFURLCreateWithString(NULL, CFSTR("http://www.google.co.jp/"), NULL);
CFHTTPMessageRef httpRequest = CFHTTPMessageCreateRequest(NULL, CFSTR("GET"), url, kCFHTTPVersion1_1);
CFReadStreamRef readStream = CFReadStreamCreateForHTTPRequest(NULL, httpRequest);
CFReadStreamOpen(readStream);

CFIndex bytes;
int bufSize = 1024;
UInt8 buf[bufSize];

do {
    bytes = CFReadStreamRead(readStream, buf, sizeof(buf));
    if( bytes > 0 ){
        NSString *responseString = [[NSString alloc] initWithBytes:buf length:bytes encoding:NSUTF8StringEncoding];
        NSLog(responseString);
    } else if( bytes < 0 ) {
        CFStreamError error = CFReadStreamGetError(readStream);
    }
} while( bytes > 0 );

CFHTTPMessageRef httpResponse = (CFHTTPMessageRef)CFReadStreamCopyProperty(readStream, kCFStreamPropertyHTTPResponseHeader);

if(httpResponse) {
    CFStringRef responseStatus = CFHTTPMessageCopyResponseStatusLine(httpResponse);
    NSLog((NSString *)responseStatus);
}