Based on Apple's CustomHTTPProtocol,
JiveAuthenticatingHTTPProtocol provides authentication callbacks for a UIWebView.
JiveAuthenticatingHTTPProtocol captures all NSURLConnection traffic. Ensure that no other NSURLConnections can start after you call +[JAHPAuthenticatingHTTPProtocol start]. Before loading an NSURLRequest that may require handling an authentication callback, call +[JAHPAuthenticatingHTTPProtocol setDelegate:], then +[JAHPAuthenticatingHTTPProtocol start]. Finally, load your NSURLRequest, and handle the callbacks from JAHPAuthenticatingHTTPProtocolDelegate.
See JiveAuthenticatingHTTPProtocolDemo/ViewController.m for an example.
BSD per the LICENSE file.