Allow proxy deep links during registration.

app/src/main/java/org/thoughtcrime/securesms/PassphraseRequiredActivity.java

@@ -194,7 +194,7 @@ public abstract class PassphraseRequiredActivity extends BaseActivity implements
   }
 
   private Intent getPushRegistrationIntent() {
-    return RegistrationNavigationActivity.newIntentForNewRegistration(this);
+    return RegistrationNavigationActivity.newIntentForNewRegistration(this, getIntent());
   }
 
   private Intent getEnterSignalPinIntent() {

app/src/main/java/org/thoughtcrime/securesms/registration/RegistrationNavigationActivity.java

@@ -7,6 +7,7 @@ import android.content.IntentFilter;
 import android.os.Bundle;
 
 import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.appcompat.app.AppCompatDelegate;
 
@@ -18,6 +19,7 @@ import org.greenrobot.eventbus.EventBus;
 import org.signal.core.util.logging.Log;
 import org.thoughtcrime.securesms.R;
 import org.thoughtcrime.securesms.service.VerificationCodeParser;
+import org.thoughtcrime.securesms.util.CommunicationActions;
 import org.whispersystems.libsignal.util.guava.Optional;
 
 public final class RegistrationNavigationActivity extends AppCompatActivity {
@@ -28,9 +30,16 @@ public final class RegistrationNavigationActivity extends AppCompatActivity {
 
   private SmsRetrieverReceiver smsRetrieverReceiver;
 
-  public static Intent newIntentForNewRegistration(@NonNull Context context) {
+  /**
+   */
+  public static Intent newIntentForNewRegistration(@NonNull Context context, @Nullable Intent originalIntent) {
     Intent intent = new Intent(context, RegistrationNavigationActivity.class);
     intent.putExtra(RE_REGISTRATION_EXTRA, false);
+
+    if (intent != null) {
+      intent.setData(originalIntent.getData());
+    }
+
     return intent;
   }
 
@@ -51,6 +60,19 @@ public final class RegistrationNavigationActivity extends AppCompatActivity {
     super.onCreate(savedInstanceState);
     setContentView(R.layout.activity_registration_navigation);
     initializeChallengeListener();
+
+    if (getIntent() != null && getIntent().getData() != null) {
+      CommunicationActions.handlePotentialProxyLinkUrl(this, getIntent().getDataString());
+    }
+  }
+
+  @Override
+  protected void onNewIntent(Intent intent) {
+    super.onNewIntent(intent);
+
+    if (intent.getData() != null) {
+      CommunicationActions.handlePotentialProxyLinkUrl(this, intent.getDataString());
+    }
   }
 
   @Override