Firebase-ios-sdk: Hi, reCAPTCHA flow on ios 13 is not working on lastest sdk.

[AbubakerMajeed]

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• Xcode version: _____
• Firebase SDK version: _____
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Steps to reproduce:

What happened? How can we make the problem occur?
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Relevant Code:

// TODO(you): code here to reproduce the problem

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[rizafran]

Hi @AbubakerMajeed, thanks for filing a report. However, I couldn't identify what's causing the issue here. To replicate, please provide the following information required from the template:

• Firebase SDK version used / Podfile.lock file
• Detailed steps to reproduce the issue
• Screenshot / complete error logs (if any)
• Relevant code / MCVE that I can run locally

[AbubakerMajeed]

Xcode : 11.1
IOS : 13
Firebase sdk : Firebase/Auth (6.11.0)
ReCaptcha is not working, go to simulator, try using phone auth , it will take user to safariviewcontroller, then after ReCaptcha autoverifcation. screen stays there.

PhoneAuthProvider.provider(auth: Auth.auth())
PhoneAuthProvider.provider().verifyPhoneNumber(phoneNumber, uiDelegate: nil) { (result, error) in
if let _ = error {
completion(false, nil , nil )
return
}
completion(true , phoneNumber , result)
}

[morganchen12]

@AbubakerMajeed, the code you've shared is not enough to reproduce the issue. Please upload a sample project that exhibits the error you're describing.

[AbubakerMajeed]

@morganchen12 this is exactly the code, when you implement firebase otp service, you need to verify number first. above sample code is doing same. but problem is after ReCaptcha verification, screen stay there not take user back to application.

[rizafran]

Hi @AbubakerMajeed Upon investigating, I was able to replicate the issue which it didn't automatically take back to the app. However, based on the documentation, I added the following code in SceneDelegate.swift to handle redirect URL and the issue has gone:

func scene(_ scene: UIScene, openURLContexts URLContexts: Set<UIOpenURLContext>) {
for urlContext in URLContexts {
     let url = urlContext.url
     Auth.auth().canHandle(url)
     }
}

You may try to add it in your SceneDelegate.swift file and see if it works on your end.

[AbubakerMajeed]

But i am not using swift UI, my app support ios 11 to onwards. This issue can be duplicated on ios12 too.

[rizafran]

Hi @AbubakerMajeed, my sample project is also not using SwiftUI, but I observed that when I create a new project in Xcode 11, I can see that the AppDelegate has split in two: AppDelegate.swift and SceneDelegate.swift.

I also tried this on Auth quickstart for iOS, but I can't seem to replicate the issue using iOS 12 or 13.

[rizafran]

@AbubakerMajeed Could you try to check if you have a SceneDelegate.swift in your project file? If so, you may add the code snippet I provided here and see if the issue persists.

[AbubakerMajeed]

Did you try on simulator? recapctha process is not working in any case.

[AbubakerMajeed]

My project is running from last 4 years. and it start with xcode older version. I do added "SceneDelegate.swift" of you request. Although it specifically requires me available check. but its not working in simulator. It stuck on white screen. As shown above.

[rizafran]

Hi @AbubakerMajeed thanks for clarifying. Yes, I'm using a simulator (iOS 12 and 13). I tried running the Auth quickstart for iOS which doesn't have a SceneDelegate.swift file, but I can't seem to get the same issue. It would be great if you can share a minimal repro of your app that I can run locally to reproduce the issue.

[AbubakerMajeed]

strange it quick easy to produce, I will share a repo with you today. Although i shifted to another otp sms solution. but it great if we have a fix.

[rizafran]

Hi @AbubakerMajeed apologies, but I can't reproduce the behavior you encountered so I asked for an MCVE in order to replicate it on my end and determine what's causing it.

[AbubakerMajeed]

testfirebase.zip

here is demo code, just run app and click on "SignIn with defaultnumber".

[rizafran]

Thanks for sharing an MCVE @AbubakerMajeed.

I tried running your app and the reCAPTCHA didn't show. However, when I tried to change the GoogleService-Info.plist file with the copy from my project, the reCAPTCHA worked as intended. I'll consult this internally to see what's causing the issue.

[rizafran]

@AbubakerMajeed May I know if you have tried to re-download and update your GoogleService-Info.plist file?

[AbubakerMajeed]

this is latest download googleservicer-info plist. For above code(recaptch point) please run on any simulator, not on device.

[rizafran]

Hi @AbubakerMajeed, apologies for the late response. May I know if you're not using Google Identity Toolkit?

[AbubakerMajeed]

No, i am not using identity toolkit. Using only firebase phoneauth.

[rizafran]

Thanks for the info @AbubakerMajeed. I've forwarded this to the Auth team, and will let you know once I have an update.

[juergengunz]

any update on this?

[Nodirbek-Sharipov]

I had similar issue, try using VPN. Firebase seems to have some limitations to users trying to spam from same IP, default sign up quota is 100 times/hr, but not sure about default login quota for same device with same IP

[paulb777]

The conversation looks to be dropped here. Sorry about that. Is this still an issue?

[AbubakerMajeed]

no solved; being ignore... move to another service...

[morganchen12]

For anyone running into a similar issue, please try the steps mentioned above:

• Implement the SceneDelegate method to handle URL redirects
• Re-download your GoogleService-Info.plist file

If both of these steps fail, please file an issue to Firebase Support.

Given the limited number of reports and our inability to reproduce the issue with the sample project from @AbubakerMajeed and our own quickstart, I'm going to _tentatively_ conclude that this was a configuration issue and does not require SDK code changes, but again if you're encountering this issue please file a ticket at support and we'll take a look.