Posting Form with Hidden Field

[DenVog]

I am trying to use NSURLConnection to submit a form to a URL. My form requires the inclusion of a hidden field with a specific name and value. In HTML it would look like:

 <form action="http://www.example.com/mail" enctype="multipart/form-data" method="POST">
 <input type="text" name="mailfrom">
 <input type="hidden" name="sendtoemail" value="destination-webmaster@example.com">
 <input type="submit" value="Send Email">
 </form>

I've found several threads on submitting general text fields (e.g. UITextField for entering an email address), but nothing covering how to include a hidden field that requires a specific name and value. Here's what I have so far:

NSString *post = nil;  
post = [[NSString alloc] initWithFormat:@"message=%@",messageText.text];  
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];  
NSString *postLength = [NSString stringWithFormat:@"%d", [postData length]];  
NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];  
[request setURL:[NSURL URLWithString:@"http://www.example.com/mail"]];  
[request setHTTPMethod:@"POST"];  
[request setValue:postLength forHTTPHeaderField:@"Content-Length"];  
[request setValue:@"multipart/form-data" forHTTPHeaderField:@"Content-Type"];  
[request setHTTPBody:postData];  
[ NSURLConnection connectionWithRequest:request delegate:self ];  
[post release];

Thanks for any assistance.

PS-Am I going to run into trouble using "multipart/form-data" for the Content Type, instead of "application/x-www-form-urlencoded" which I see in most of the examples?

[FlyingDiver]

Just add the extra fields to the POST data:

post = [[NSString alloc] initWithFormat:@"message=%@&sendtoemail=%@",messageText.text, @"destination-webmaster@example.com"];

The fact that it's hidden in the HTML that creates the form doesn't effect the actual POST command format.

joe

[DenVog]

Originally Posted by FlyingDiver

Just add the extra fields to the POST data:

post = [[NSString alloc] initWithFormat:@"message=%@&sendtoemail=%@",messageText.text, @"destination-webmaster@example.com"];

The fact that it's hidden in the HTML that creates the form doesn't effect the actual POST command format.

joe

Hi Joe. Thanks for the response. Guess I was making it harder than it needed to be.

NOTE - Setting the form type is important. I tried using "enctype="multipart/form-data" which is what is used on the web version of my form. Does NOT work on the iPhone. Switched it back to "application/x-www-form-urlencoded" for Content-Type which I've seen in the NSURLConnection examples, and it's working fine.