feat: remove email enumeration

app/src/main/AndroidManifest.xml

@@ -2,7 +2,7 @@
 <manifest
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
-    >
+>
 
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
@@ -41,7 +41,7 @@
             android:label="@string/title_auth_activity" />
         <activity
             android:name=".auth.AnonymousUpgradeActivity"
-            android:label="@string/title_anonymous_upgrade"/>
+            android:label="@string/title_anonymous_upgrade" />
 
         <!-- Firestore demo -->
         <activity
@@ -74,4 +74,4 @@
 
     </application>
 
-</manifest>
+</manifest>

auth/build.gradle.kts

@@ -78,10 +78,14 @@ dependencies {
     implementation(Config.Libs.Androidx.customTabs)
     implementation(Config.Libs.Androidx.constraint)
     implementation("androidx.credentials:credentials:1.3.0")
+    implementation("androidx.credentials:credentials-play-services-auth:1.3.0")
 
     implementation(Config.Libs.Androidx.lifecycleExtensions)
     implementation("androidx.core:core-ktx:1.13.1")
     implementation("androidx.lifecycle:lifecycle-viewmodel-ktx:2.2.0")
+    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.7.3")
+    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-android:1.7.3")
+    implementation("com.google.android.libraries.identity.googleid:googleid:1.1.1")
     annotationProcessor(Config.Libs.Androidx.lifecycleCompiler)
 
     implementation(platform(Config.Libs.Firebase.bom))

auth/src/main/AndroidManifest.xml

@@ -2,7 +2,7 @@
 <manifest
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
-    >
+>
 
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
     <uses-permission android:name="android.permission.INTERNET" />
@@ -127,4 +127,4 @@
 
     </application>
 
-</manifest>
+</manifest>

auth/src/main/java/com/firebase/ui/auth/KickoffActivity.java

@@ -36,7 +36,7 @@ protected void onCreate(@Nullable final Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         mKickstarter = new ViewModelProvider(this).get(SignInKickstarter.class);
         mKickstarter.init(getFlowParams());
-        mKickstarter.getOperation().observe(this, new ResourceObserver<IdpResponse>(this) {
+        mKickstarter.getOperation().observe(this, new ResourceObserver<>(this) {
             @Override
             protected void onSuccess(@NonNull IdpResponse response) {
                 finish(RESULT_OK, response.toIntent());

auth/src/main/java/com/firebase/ui/auth/data/model/PendingIntentRequiredException.java

@@ -1,6 +1,7 @@
 package com.firebase.ui.auth.data.model;
 
 import android.app.PendingIntent;
+import android.content.IntentSender;
 
 import com.firebase.ui.auth.ErrorCodes;
 import com.firebase.ui.auth.FirebaseUiException;
@@ -11,19 +12,53 @@
 @RestrictTo(RestrictTo.Scope.LIBRARY_GROUP)
 public class PendingIntentRequiredException extends FirebaseUiException {
     private final PendingIntent mPendingIntent;
+    private final IntentSender mIntentSender;
     private final int mRequestCode;
 
+    /**
+     * Constructor for cases when a PendingIntent is available.
+     *
+     * @param pendingIntent The PendingIntent required to complete the operation.
+     * @param requestCode   The associated request code.
+     */
     public PendingIntentRequiredException(@NonNull PendingIntent pendingIntent, int requestCode) {
         super(ErrorCodes.UNKNOWN_ERROR);
         mPendingIntent = pendingIntent;
+        mIntentSender = null;
         mRequestCode = requestCode;
     }
 
-    @NonNull
+    /**
+     * Constructor for cases when an IntentSender is available.
+     *
+     * @param intentSender The IntentSender required to complete the operation.
+     * @param requestCode  The associated request code.
+     */
+    public PendingIntentRequiredException(@NonNull IntentSender intentSender, int requestCode) {
+        super(ErrorCodes.UNKNOWN_ERROR);
+        mIntentSender = intentSender;
+        mPendingIntent = null;
+        mRequestCode = requestCode;
+    }
+
+    /**
+     * Returns the PendingIntent, if available.
+     *
+     * @return The PendingIntent or null if not available.
+     */
     public PendingIntent getPendingIntent() {
         return mPendingIntent;
     }
 
+    /**
+     * Returns the IntentSender, if available.
+     *
+     * @return The IntentSender or null if not available.
+     */
+    public IntentSender getIntentSender() {
+        return mIntentSender;
+    }
+
     public int getRequestCode() {
         return mRequestCode;
     }