isNetworkError does not report case where Wifi + Mobile Data is off

[lordzsolt]

Checklist

• [X] The issue can be reproduced in the Auth0.swift sample app (or N/A).
• [X] I have looked into the Readme, Examples, and FAQ and have not found a suitable solution or answer.
• [X] I have looked into the API documentation and have not found a suitable solution or answer.
• [X] I have searched the issues and have not found a suitable solution or answer.
• [X] I have searched the Auth0 Community forums and have not found a suitable solution or answer.
• [X] I agree to the terms within the Auth0 Code of Conduct.

Description

When I turn off Wifi + Mobile Data, and I call oauth/token through Auth0.swift, I receive the following error:

Unhandled error happened: The credentials renewal failed. CAUSE: Unable to complete the operation. CAUSE: Error Domain=NSURLErrorDomain Code=-1020 "A data connection is not currently allowed."

AuthenticationError.isNetworkError will report this as false, because:

Error code -1020 is equivalent to .dataNotAllowed which is not in the list of networkErrorCodes.

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Interestingly, if I put the phone into airplane mode, I receive .notConnectedToInternet and this is reported as network error... 🤯

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What is the intended purpose of isNetworkError?

• I was intending to use it to distinguish between unknown errors and network errors.

Reproduction

1. Log in with a user on a physical device
2. Turn off Mobile Data + Wifi
3. Call CredentialsManager.credentials(minTTL:) with a token that triggers the oauth/token endpoint
4. Notice the returned error, and isNetworkError being false

Additional context

No response

Auth0.swift version

2.5.0

Platform

iOS

Platform version(s)

16.1.1

Xcode version

15.0

Package manager

Cocoapods

[Widcket]

Hi @lordzsolt, thanks for raising this.

.dataNotAllowed should indeed be on the list of networkErrorCodes. If you raise a PR adding it I'll happily review it.