On 19 Apr 2015, at 03:36, Daryle Walker <[email protected]> wrote:
> I was originally going to go with adding the username/password credential
> inside the session configuration’s credential store [...]
Just FYI, I'd recommend against pre-populating the credential store. IMO it's
much better to respond to authentication challenges.
* * *
Having said that, you need to make sure you respond to the /right/ challenges.
An authentication challenge handler should always have this general structure:
- (void)URLSession:(NSURLSession *)session task:(NSURLSessionTask *)task
didReceiveChallenge:(NSURLAuthenticationChallenge *)challenge
completionHandler:(...))completionHandler
{
if ([challenge.protectionSpace.authenticationMethod isEqual:xxx]) {
... handle the xxx challenge ...
} else if ([challenge.protectionSpace.authenticationMethod isEqual:yyy]) {
... handle the yyy challenge ...
} else {
completionHandler(NSURLSessionAuthChallengePerformDefaultHandling, nil);
}
}
That is, you should specifically look for the challenges you care about and
handle those explicitly. If you get a challenge you don't care about, complete
it with NSURLSessionAuthChallengePerformDefaultHandling.
With regards the differences between FTP vs HTTP challenges, you can run into
issues with the difference between NSURLAuthenticationMethodDefault and
NSURLAuthenticationMethodHTTP{Basic,Digest}. In general I recommend that you
handle all the password-based challenges (NSURLAuthenticationMethodDefault,
NSURLAuthenticationMethodHTTP{Basic,Digest,NTLML}) in the same branch of your
authentication challenge handler method.
Share and Enjoy
--
Quinn "The Eskimo!" <http://www.apple.com/developer/>
Apple Developer Relations, Developer Technical Support, Core OS/Hardware
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