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copied!<p>Check out the documentation for <a href="http://developer.apple.com/mac/library/documentation/Cocoa/Reference/Foundation/Classes/NSURLRequest_Class/Reference/Reference.html" rel="nofollow noreferrer"><code>NSURLRequest</code></a> (and <a href="http://developer.apple.com/mac/library/DOCUMENTATION/Cocoa/Reference/Foundation/Classes/NSMutableURLRequest_Class/Reference/Reference.html" rel="nofollow noreferrer"><code>NSMutableURLRequest</code></a>): you can use it to make a <code>POST</code> request to your login and registration pages, just like a web browser. You can write the form UI in Cocoa/Objective-C and then send the data to the server.</p> <p>As far as displaying the result to the user, you'll have to figure out a way to either parse the returned HTML (bad idea) or modify your CMS to return JSON or XML to iPhone requests (better idea).</p> <p><strong>Edit:</strong> Here's some sample code, taken from an app I'm working on (it submits data to Last.fm using <code>POST</code>):</p> <pre><code>NSURL *url = [NSURL URLWithString:@"http://example.com/"]; NSString *str = @"This is my example data!"; // everything below here is directly from my app: NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url]; [request setHTTPMethod:@"POST"]; [request setHTTPBody:[str dataUsingEncoding:NSUTF8StringEncoding]]; [request setValue:kLastFMClientUserAgent forHTTPHeaderField:@"User-Agent"]; [request setCachePolicy:NSURLRequestReloadIgnoringLocalAndRemoteCacheData]; [request setHTTPShouldHandleCookies:NO]; *connection = [[NSURLConnection alloc] initWithRequest:request delegate:self startImmediately:YES]; </code></pre>

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