Hi,

I'm trying to make a firebase token verification on my Symfony application. I'm using Kreait\Firebase library for that with the following :

composer require kreait/firebase-bundle

I follow firebase-php documentation in order to control the token sent by the client with the following :

$verifiedIdToken = $this->auth->verifyIdToken($identifier);

I know that verifyIdToken() function needs to request https://www.googleapis.com/robot/v1/metadata/x509/securetoken@system.gserviceaccount.com in order to get current google keys for firebase.

In my .env file, when APP_ENV=prod, everything works fine. But wen APP_ENV=dev, I get this error :

[critical] Uncaught PHP Exception Kreait\Firebase\Exception\Auth\FailedToVerifyToken: "The inner handler of Kreait\Firebase\JWT\Action\FetchGooglePublicKeys\WithPsr6Cache (Kreait\Firebase\JWT\Action\FetchGooglePublicKeys\WithGuzzle) failed in fetching keys: The connection to https://www.googleapis.com/robot/v1/metadata/x509/securetoken@system.gserviceaccount.com failed: Unable to read from stream" at /home/guillaume/git/pebble-authenticator/vendor/kreait/firebase-php/src/Firebase/Auth.php line 381

I wasn't able to find this error on firebase or symfony documentation.

It is as if the security system is not allowing to goes throw https://www.googleapis.com/robot/v1/metadata/x509/securetoken@system.gserviceaccount.com in dev mode.

If someone has an idea to make it works in dev mode, it would be so nice !

Guillaume.