ASWebAuthenticationSession error when using GIDSignIn

[ajkolean]

[READ] Step 1: Are you in the right place?

YES

[REQUIRED] Step 2: Describe your environment

• Xcode version: 11.0 beta 7
• Firebase SDK version: 6.7.0
• Firebase Component: Auth
• Component version: 6.7.0

My Podfile.lock is

  - Firebase/Analytics (6.7.0):
    - Firebase/Core
  - Firebase/Auth (6.7.0):
    - Firebase/CoreOnly
    - FirebaseAuth (~> 6.2.3)
  - Firebase/Core (6.7.0):
    - Firebase/CoreOnly
    - FirebaseAnalytics (= 6.1.1)
  - Firebase/CoreOnly (6.7.0):
    - FirebaseCore (= 6.2.1)
  - Firebase/DynamicLinks (6.7.0):
    - Firebase/CoreOnly
    - FirebaseDynamicLinks (~> 4.0.3)
  - Firebase/Firestore (6.7.0):
    - Firebase/CoreOnly
    - FirebaseFirestore (~> 1.4.4)
  - Firebase/Functions (6.7.0):
    - Firebase/CoreOnly
    - FirebaseFunctions (~> 2.5.1)
  - Firebase/Messaging (6.7.0):
    - Firebase/CoreOnly
    - FirebaseMessaging (~> 4.1.3)
  - Firebase/Performance (6.7.0):
    - Firebase/CoreOnly
    - FirebasePerformance (~> 3.1.2)
  - Firebase/RemoteConfig (6.7.0):
    - Firebase/CoreOnly
    - FirebaseRemoteConfig (~> 4.3.0)
  - Firebase/Storage (6.7.0):
    - Firebase/CoreOnly
    - FirebaseStorage (~> 3.4.0)
  - FirebaseABTesting (3.1.0):
    - FirebaseAnalyticsInterop (~> 1.3)
    - FirebaseCore (~> 6.1)
    - Protobuf (~> 3.8)
  - FirebaseAnalytics (6.1.1):
    - FirebaseCore (~> 6.2)
    - FirebaseInstanceID (~> 4.2)
    - GoogleAppMeasurement (= 6.1.1)
    - GoogleUtilities/AppDelegateSwizzler (~> 6.0)
    - GoogleUtilities/MethodSwizzler (~> 6.0)
    - GoogleUtilities/Network (~> 6.0)
    - "GoogleUtilities/NSData+zlib (~> 6.0)"
    - nanopb (~> 0.3)
  - FirebaseAnalyticsInterop (1.4.0)
  - FirebaseAuth (6.2.3):
    - FirebaseAuthInterop (~> 1.0)
    - FirebaseCore (~> 6.2)
    - GoogleUtilities/AppDelegateSwizzler (~> 6.2)
    - GoogleUtilities/Environment (~> 6.2)
    - GTMSessionFetcher/Core (~> 1.1)
  - FirebaseAuthInterop (1.0.0)
  - FirebaseCore (6.2.1):
    - FirebaseCoreDiagnostics (~> 1.0)
    - FirebaseCoreDiagnosticsInterop (~> 1.0)
    - GoogleUtilities/Environment (~> 6.2)
    - GoogleUtilities/Logger (~> 6.2)
  - FirebaseCoreDiagnostics (1.0.1):
    - FirebaseCoreDiagnosticsInterop (~> 1.0)
    - GoogleDataTransportCCTSupport (~> 1.0)
    - GoogleUtilities/Environment (~> 6.2)
    - GoogleUtilities/Logger (~> 6.2)
  - FirebaseCoreDiagnosticsInterop (1.0.0)
  - FirebaseDynamicLinks (4.0.3):
    - FirebaseAnalyticsInterop (~> 1.3)
    - FirebaseCore (~> 6.2)
  - FirebaseFirestore (1.4.5):
    - FirebaseAuthInterop (~> 1.0)
    - FirebaseCore (~> 6.2)
    - FirebaseFirestore/abseil-cpp (= 1.4.5)
    - "gRPC-C++ (= 0.0.9)"
    - leveldb-library (~> 1.20)
    - nanopb (~> 0.3.901)
    - Protobuf (~> 3.1)
  - FirebaseFirestore/abseil-cpp (1.4.5):
    - FirebaseAuthInterop (~> 1.0)
    - FirebaseCore (~> 6.2)
    - "gRPC-C++ (= 0.0.9)"
    - leveldb-library (~> 1.20)
    - nanopb (~> 0.3.901)
    - Protobuf (~> 3.1)
  - FirebaseFunctions (2.5.1):
    - FirebaseAuthInterop (~> 1.0)
    - FirebaseCore (~> 6.0)
    - GTMSessionFetcher/Core (~> 1.1)
  - FirebaseInstanceID (4.2.3):
    - FirebaseCore (~> 6.0)
    - GoogleUtilities/Environment (~> 6.0)
    - GoogleUtilities/UserDefaults (~> 6.0)
  - FirebaseMessaging (4.1.3):
    - FirebaseAnalyticsInterop (~> 1.3)
    - FirebaseCore (~> 6.2)
    - FirebaseInstanceID (~> 4.1)
    - GoogleUtilities/AppDelegateSwizzler (~> 6.2)
    - GoogleUtilities/Environment (~> 6.2)
    - GoogleUtilities/Reachability (~> 6.2)
    - GoogleUtilities/UserDefaults (~> 6.2)
    - Protobuf (~> 3.1)
  - FirebasePerformance (3.1.2):
    - FirebaseCore (~> 6.2)
    - FirebaseInstanceID (~> 4.2)
    - FirebaseRemoteConfig (~> 4.2)
    - GoogleToolboxForMac/Logger (~> 2.1)
    - "GoogleToolboxForMac/NSData+zlib (~> 2.1)"
    - GoogleUtilities/Environment (~> 6.0)
    - GoogleUtilities/ISASwizzler (~> 6.0)
    - GoogleUtilities/MethodSwizzler (~> 6.0)
    - GTMSessionFetcher/Core (~> 1.1)
    - Protobuf (~> 3.5)
  - FirebaseRemoteConfig (4.3.0):
    - FirebaseABTesting (~> 3.1)
    - FirebaseAnalyticsInterop (~> 1.4)
    - FirebaseCore (~> 6.2)
    - FirebaseInstanceID (~> 4.2)
    - GoogleUtilities/Environment (~> 6.0)
    - "GoogleUtilities/NSData+zlib (~> 6.0)"
    - Protobuf (~> 3.5)
  - FirebaseStorage (3.4.0):
    - FirebaseAuthInterop (~> 1.0)
    - FirebaseCore (~> 6.0)
    - GTMSessionFetcher/Core (~> 1.1)```

[REQUIRED] Step 3: Describe the problem

Trying to sign in with Google causes crash.

 NSError    domain: "com.google.GIDSignIn" - code: 18446744073709551615    0x0000000283cd0390
Error Domain=com.google.GIDSignIn Code=-1 "The operation couldn’t be completed. (org.openid.appauth.general error -3.)" UserInfo={NSLocalizedDescription=The operation couldn’t be completed. (org.openid.appauth.general error -3.)}

[morganchen12]

Can you share the stack trace of the crash? The error log at the bottom is a non-fatal error.

[jlaws]

@morganchen12 it does not crash for us, it just fails with the error posted above.

[ajkolean]

Yes my mistake the error is being called in func sign( _ signIn: GIDSignIn!, didSignInFor user: GIDGoogleUser!, withError error: Error!) with the above set as the error.

More on the error:
Error Domain=org.openid.appauth.general Code=-3 "(null)" UserInfo={NSUnderlyingError=0x6000007cf240 {Error Domain=com.apple.AuthenticationServices.WebAuthenticationSession Code=2 "Cannot start ASWebAuthenticationSession without providing presentation context. Set presentationContextProvider before calling -start." UserInfo={NSDebugDescription=Cannot start ASWebAuthenticationSession without providing presentation context. Set presentationContextProvider before calling -start.}}} /*! @abstract Provides context to target where in an application's UI the authorization view should be shown. A provider must be set prior to calling -start, otherwise the authorization view cannot be displayed. If deploying to iOS prior to 13.0, the desired window is inferred by the application's key window. */ @property (nonatomic, weak) id <ASWebAuthenticationPresentationContextProviding> presentationContextProvider API_AVAILABLE(ios(13.0), macos(10.15));

line 90 of OIDExternalUserAgentIOS.m
Error Domain=com.apple.AuthenticationServices.WebAuthenticationSession Code=2 "Cannot start ASWebAuthenticationSession without providing presentation context. Set presentationContextProvider before calling -start." UserInfo={NSDebugDescription=Cannot start ASWebAuthenticationSession without providing presentation context. Set presentationContextProvider before calling -start.}
Investigating OIDExternalUserAgentIOS.m more it looks like something must have changed in apple's framework and _presentingViewController.view.window is now returning nil. UIWindow from a view is returning nil even when the VC is on the screen. Updating the return statement on line 239 to return the sharedWindow resolves the issue.

- (ASPresentationAnchor)presentationAnchorForWebAuthenticationSession:(ASWebAuthenticationSession *)session API_AVAILABLE(ios(13.0)){ return _presentingViewController.view.window; }

However, this code isn't ideal. OIDExternalUserAgentIOS should ask for a window rather than trying to derive it from the ViewController that is provided.

[morganchen12]

@renkelvin based on the error posted above it looks like we're misusing AuthenticationServices. Can you investigate?

[renkelvin]

@morganchen12 Firebase Auth doesn't depend on AuthenticationServices. It seems an issue with GSI.

[morganchen12]

Looks like this was reported earlier at b/139778942 (Google-internal only).

[paulb777]

@morganchen12 b/139778942 should only impact binary installs. If the same thing is happening from a CocoaPods install, it's another issue.

@ajkolean Please confirm that you're using the most recent version of GoogleSignIn - 5.x

[ajkolean]

Yes I am, this is from my Podfile.lock:

- GoogleSignIn (5.0.0): - AppAuth (~> 1.1) - GTMAppAuth (~> 1.0) - GTMSessionFetcher/Core (~> 1.1)