From 7ee1d245cf5774e4fc872a2dd093f79cbcae8ca6 Mon Sep 17 00:00:00 2001
From: Daniel Gultsch <daniel@gultsch.de>
Date: Thu, 4 Dec 2025 12:44:45 +0100
Subject: [PATCH] UnifiedPush: add support for link activity

---
 src/main/AndroidManifest.xml                  | 13 +++++++
 .../services/UnifiedPushBroker.java           | 30 ++++++++++------
 .../ui/UnifiedPushDistributor.java            | 35 +++++++++++++++++++
 3 files changed, 68 insertions(+), 10 deletions(-)
 create mode 100644 src/main/java/eu/siacs/conversations/ui/UnifiedPushDistributor.java

diff --git a/src/main/AndroidManifest.xml b/src/main/AndroidManifest.xml
index f8468b4235d2732b79c6b1d6e6963fd7874cd00a..5809e70d2102e6bf419b2e8fbb584a8fc12de31b 100644
--- a/src/main/AndroidManifest.xml
+++ b/src/main/AndroidManifest.xml
@@ -140,6 +140,19 @@
             </intent-filter>
         </receiver>
 
+        <activity
+            android:enabled="false"
+            android:name=".ui.UnifiedPushDistributor"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <data
+                    android:host="link"
+                    android:scheme="unifiedpush" />
+            </intent-filter>
+        </activity>
+
         <receiver
             android:name=".receiver.UnifiedPushDistributor"
             android:enabled="false"
diff --git a/src/main/java/eu/siacs/conversations/services/UnifiedPushBroker.java b/src/main/java/eu/siacs/conversations/services/UnifiedPushBroker.java
index 41d3ca7cbc1bf5c9134c3f7186ea3b2c2bde275f..c49889a376a9e5d96e04125ac2d8f957d5cadbc7 100644
--- a/src/main/java/eu/siacs/conversations/services/UnifiedPushBroker.java
+++ b/src/main/java/eu/siacs/conversations/services/UnifiedPushBroker.java
@@ -34,6 +34,7 @@ import im.conversations.android.xmpp.model.stanza.Iq;
 import im.conversations.android.xmpp.model.up.Push;
 import java.nio.charset.StandardCharsets;
 import java.text.ParseException;
+import java.util.Arrays;
 import java.util.List;
 import java.util.concurrent.Executors;
 import java.util.concurrent.ScheduledExecutorService;
@@ -263,19 +264,28 @@ public class UnifiedPushBroker {
 
     private void setUnifiedPushDistributorEnabled(final boolean enabled) {
         final PackageManager packageManager = service.getPackageManager();
-        final ComponentName componentName =
-                new ComponentName(service, UnifiedPushDistributor.class);
+        final var componentNames =
+                Arrays.asList(
+                        new ComponentName(
+                                service.getApplicationContext(),
+                                eu.siacs.conversations.ui.UnifiedPushDistributor.class),
+                        new ComponentName(
+                                service.getApplicationContext(), UnifiedPushDistributor.class));
         if (enabled) {
-            packageManager.setComponentEnabledSetting(
-                    componentName,
-                    PackageManager.COMPONENT_ENABLED_STATE_ENABLED,
-                    PackageManager.DONT_KILL_APP);
+            for (final var componentName : componentNames) {
+                packageManager.setComponentEnabledSetting(
+                        componentName,
+                        PackageManager.COMPONENT_ENABLED_STATE_ENABLED,
+                        PackageManager.DONT_KILL_APP);
+            }
             Log.d(Config.LOGTAG, "UnifiedPushDistributor has been enabled");
         } else {
-            packageManager.setComponentEnabledSetting(
-                    componentName,
-                    PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
-                    PackageManager.DONT_KILL_APP);
+            for (final var componentName : componentNames) {
+                packageManager.setComponentEnabledSetting(
+                        componentName,
+                        PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
+                        PackageManager.DONT_KILL_APP);
+            }
             Log.d(Config.LOGTAG, "UnifiedPushDistributor has been disabled");
         }
     }
diff --git a/src/main/java/eu/siacs/conversations/ui/UnifiedPushDistributor.java b/src/main/java/eu/siacs/conversations/ui/UnifiedPushDistributor.java
new file mode 100644
index 0000000000000000000000000000000000000000..878cc731ab19d358f3800af0af9d20d28108f02b
--- /dev/null
+++ b/src/main/java/eu/siacs/conversations/ui/UnifiedPushDistributor.java
@@ -0,0 +1,35 @@
+package eu.siacs.conversations.ui;
+
+import android.app.PendingIntent;
+import android.content.Intent;
+import android.os.Bundle;
+import android.util.Log;
+import androidx.appcompat.app.AppCompatActivity;
+import com.google.common.base.Strings;
+import eu.siacs.conversations.Config;
+
+public class UnifiedPushDistributor extends AppCompatActivity {
+
+    private static final String DUMMY_APP = "org.unifiedpush.dummy_app";
+    private static final String EXTRA_PENDING_INTENT = "pi";
+
+    @Override
+    public void onCreate(final Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        final var intent = getIntent();
+        final var callingPackage = getCallingPackage();
+        final var result = new Intent();
+        if (intent == null || Strings.isNullOrEmpty(callingPackage)) {
+            setResult(RESULT_CANCELED, result);
+            finish();
+            ;
+        }
+        Log.d(Config.LOGTAG, "a package (" + callingPackage + ") called our link activity");
+        final var pendingIntent =
+                PendingIntent.getBroadcast(
+                        this, 0, new Intent(DUMMY_APP), PendingIntent.FLAG_IMMUTABLE);
+        result.putExtra(EXTRA_PENDING_INTENT, pendingIntent);
+        setResult(RESULT_OK, result);
+        finish();
+    }
+}