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Merged
merged 8 commits into from
Feb 14, 2025
Merged

Add Credential Manager to Auth samples #610

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c094f3a
Add Credential Manager to Kotlin sample
marinacoelho Feb 6, 2025
8e69564
Add Credential Manager to Java sample and improve Kotlin sample
marinacoelho Feb 6, 2025
bdcdb3c
Add sign out
marinacoelho Feb 6, 2025
5179375
Fix tags to add to the documentation
marinacoelho Feb 11, 2025
c41c4e5
Update method name
marinacoelho Feb 12, 2025
67fc272
Update auth/app/src/main/java/com/google/firebase/quickstart/auth/kot…
marinacoelho Feb 14, 2025
35d2acc
Update method name to match Credential Manager docs, merge Firebase s…
marinacoelho Feb 14, 2025
203b23e
Merge branch 'master' into marina/add-credential-manager-to-auth-sample
marinacoelho Feb 14, 2025
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5 changes: 5 additions & 0 deletions auth/app/build.gradle.kts
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Original file line number Diff line number Diff line change
Expand Up @@ -49,6 +49,11 @@ dependencies {
// [START gradle_firebase_ui_auth]
implementation("com.firebaseui:firebase-ui-auth:8.0.2")

// Google Identity Services SDK (only required for Auth with Google)
implementation("androidx.credentials:credentials:1.3.0")
implementation("androidx.credentials:credentials-play-services-auth:1.3.0")
implementation("com.google.android.libraries.identity.googleid:googleid:1.1.1")

// Required only if Facebook login support is required
// Find the latest Facebook SDK releases here: https://goo.gl/Ce5L94
implementation("com.facebook.android:facebook-android-sdk:4.42.0")
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168 changes: 109 additions & 59 deletions auth/app/src/main/java/com/google/firebase/quickstart/auth/GoogleSignInActivity.java
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Expand Up @@ -16,57 +16,61 @@

package com.google.firebase.quickstart.auth;

import android.app.Activity;
import android.content.Intent;
import static com.google.android.libraries.identity.googleid.GoogleIdTokenCredential.TYPE_GOOGLE_ID_TOKEN_CREDENTIAL;

import android.os.Bundle;
import android.os.CancellationSignal;
import android.util.Log;

import androidx.annotation.NonNull;

import com.google.android.gms.auth.api.signin.GoogleSignIn;
import com.google.android.gms.auth.api.signin.GoogleSignInAccount;
import com.google.android.gms.auth.api.signin.GoogleSignInClient;
import com.google.android.gms.auth.api.signin.GoogleSignInOptions;
import com.google.android.gms.common.api.ApiException;
import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.Task;
import androidx.appcompat.app.AppCompatActivity;
import androidx.credentials.ClearCredentialStateRequest;
import androidx.credentials.Credential;
import androidx.credentials.CredentialManager;
import androidx.credentials.CredentialManagerCallback;
import androidx.credentials.CustomCredential;
import androidx.credentials.GetCredentialRequest;
import androidx.credentials.GetCredentialResponse;
import androidx.credentials.exceptions.ClearCredentialException;
import androidx.credentials.exceptions.GetCredentialException;
import com.google.android.libraries.identity.googleid.GetGoogleIdOption;
import com.google.android.libraries.identity.googleid.GoogleIdTokenCredential;
import com.google.firebase.auth.AuthCredential;
import com.google.firebase.auth.AuthResult;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.auth.FirebaseUser;
import com.google.firebase.auth.GoogleAuthProvider;
import java.util.concurrent.Executors;

/**
* Demonstrate Firebase Authentication using a Google ID Token.
*/
public class GoogleSignInActivity extends Activity {
public class GoogleSignInActivity extends AppCompatActivity {

private static final String TAG = "GoogleActivity";
private static final int RC_SIGN_IN = 9001;

// [START declare_auth]
private FirebaseAuth mAuth;
// [END declare_auth]

private GoogleSignInClient mGoogleSignInClient;
// [START declare_credential_manager]
private CredentialManager credentialManager;
// [END declare_credential_manager]

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// [START config_signin]
// Configure Google Sign In
GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
.requestIdToken(getString(R.string.default_web_client_id))
.requestEmail()
.build();

mGoogleSignInClient = GoogleSignIn.getClient(this, gso);
// [END config_signin]

// [START initialize_auth]
// Initialize Firebase Auth
mAuth = FirebaseAuth.getInstance();
// [END initialize_auth]

// [START initialize_credential_manager]
// Initialize Credential Manager
credentialManager = CredentialManager.create(getBaseContext());
// [END initialize_credential_manager]

launchCredentialManager();
}

// [START on_start_check_user]
Expand All @@ -79,55 +83,101 @@ public void onStart() {
}
// [END on_start_check_user]

// [START onactivityresult]
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);

// Result returned from launching the Intent from GoogleSignInApi.getSignInIntent(...);
if (requestCode == RC_SIGN_IN) {
Task<GoogleSignInAccount> task = GoogleSignIn.getSignedInAccountFromIntent(data);
try {
// Google Sign In was successful, authenticate with Firebase
GoogleSignInAccount account = task.getResult(ApiException.class);
Log.d(TAG, "firebaseAuthWithGoogle:" + account.getId());
firebaseAuthWithGoogle(account.getIdToken());
} catch (ApiException e) {
// Google Sign In failed, update UI appropriately
Log.w(TAG, "Google sign in failed", e);
}
private void launchCredentialManager() {
// [START create_credential_manager_request]
// Instantiate a Google sign-in request
GetGoogleIdOption googleIdOption = new GetGoogleIdOption.Builder()
.setFilterByAuthorizedAccounts(true)
.setServerClientId(getString(R.string.default_web_client_id))
.build();

// Create the Credential Manager request
GetCredentialRequest request = new GetCredentialRequest.Builder()
.addCredentialOption(googleIdOption)
.build();
// [END create_credential_manager_request]

// Launch Credential Manager UI
credentialManager.getCredentialAsync(
getBaseContext(),
request,
new CancellationSignal(),
Executors.newSingleThreadExecutor(),
new CredentialManagerCallback<>() {
@Override
public void onResult(GetCredentialResponse result) {
// Extract credential from the result returned by Credential Manager
handleSignIn(result.getCredential());
}

@Override
public void onError(GetCredentialException e) {
Log.e(TAG, "Couldn't retrieve user's credentials: " + e.getLocalizedMessage());
}
}
);
}

// [START handle_sign_in]
private void handleSignIn(Credential credential) {
// Check if credential is of type Google ID
if (credential instanceof CustomCredential customCredential
&& credential.getType().equals(TYPE_GOOGLE_ID_TOKEN_CREDENTIAL)) {
// Create Google ID Token
Bundle credentialData = customCredential.getData();
GoogleIdTokenCredential googleIdTokenCredential = GoogleIdTokenCredential.createFrom(credentialData);

// Sign in to Firebase with using the token
firebaseAuthWithGoogle(googleIdTokenCredential.getIdToken());
} else {
Log.w(TAG, "Credential is not of type Google ID!");
}
}
// [END onactivityresult]
// [END handle_sign_in]

// [START auth_with_google]
private void firebaseAuthWithGoogle(String idToken) {
AuthCredential credential = GoogleAuthProvider.getCredential(idToken, null);
mAuth.signInWithCredential(credential)
.addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
@Override
public void onComplete(@NonNull Task<AuthResult> task) {
if (task.isSuccessful()) {
// Sign in success, update UI with the signed-in user's information
Log.d(TAG, "signInWithCredential:success");
FirebaseUser user = mAuth.getCurrentUser();
updateUI(user);
} else {
// If sign in fails, display a message to the user.
Log.w(TAG, "signInWithCredential:failure", task.getException());
updateUI(null);
}
.addOnCompleteListener(this, task -> {
if (task.isSuccessful()) {
// Sign in success, update UI with the signed-in user's information
Log.d(TAG, "signInWithCredential:success");
FirebaseUser user = mAuth.getCurrentUser();
updateUI(user);
} else {
// If sign in fails, display a message to the user
Log.w(TAG, "signInWithCredential:failure", task.getException());
updateUI(null);
}
});
}
// [END auth_with_google]

// [START signin]
private void signIn() {
Intent signInIntent = mGoogleSignInClient.getSignInIntent();
startActivityForResult(signInIntent, RC_SIGN_IN);
// [START sign_out]
private void signOut() {
// Firebase sign out
mAuth.signOut();

// When a user signs out, clear the current user credential state from all credential providers.
ClearCredentialStateRequest clearRequest = new ClearCredentialStateRequest();
credentialManager.clearCredentialStateAsync(
clearRequest,
new CancellationSignal(),
Executors.newSingleThreadExecutor(),
new CredentialManagerCallback<>() {
@Override
public void onResult(@NonNull Void result) {
updateUI(null);
}

@Override
public void onError(@NonNull ClearCredentialException e) {
Log.e(TAG, "Couldn't clear user credentials: " + e.getLocalizedMessage());
}
});
}
// [END signin]
// [END sign_out]

private void updateUI(FirebaseUser user) {

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