Fixed: Fix potential conflicting PendingIntent for execution commands sent to TermuxService due to same request code being used

agnostic-apollo · agnostic-apollo · commit d9a172d759ad · 2021-09-05T14:55:22.000+05:00
diff --git a/app/build.gradle b/app/build.gradle
@@ -62,7 +62,7 @@ dependencies {
     implementation 'com.google.android.material:material:1.4.0'
     implementation 'com.google.guava:guava:24.1-jre'
 
-    implementation 'com.termux.termux-app:termux-shared:f00738fe3a'
+    implementation 'com.termux.termux-app:termux-shared:ac32fbc53d'
 
     // Use if below libraries are published locally by termux-app with `./gradlew publishReleasePublicationToMavenLocal` and used with `mavenLocal()`.
     // If updates are done, republish there and sync project with gradle files here
diff --git a/app/src/main/java/com/termux/tasker/utils/PluginUtils.java b/app/src/main/java/com/termux/tasker/utils/PluginUtils.java
@@ -17,6 +17,8 @@
 import com.termux.shared.models.ResultConfig;
 import com.termux.shared.models.ResultData;
 import com.termux.shared.models.errors.Errno;
+import com.termux.shared.settings.preferences.TermuxPreferenceConstants.TERMUX_TASKER_APP;
+import com.termux.shared.settings.preferences.TermuxTaskerAppSharedPreferences;
 import com.termux.shared.shell.ResultSender;
 import com.termux.tasker.FireReceiver;
 import com.termux.tasker.PluginResultsService;
@@ -156,7 +158,7 @@ public static void sendExecuteIntentToExecuteService(final Context context, fina
             pluginResultsServiceIntent.putExtra(EXTRA_ORIGINAL_INTENT, originalIntent);
 
             // Create PendingIntent that can be used by execution service to send result of commands back to PluginResultsService
-            PendingIntent pendingIntent = PendingIntent.getService(context, 1, pluginResultsServiceIntent, PendingIntent.FLAG_ONE_SHOT);
+            PendingIntent pendingIntent = PendingIntent.getService(context, getLastPendingIntentRequestCode(context), pluginResultsServiceIntent, PendingIntent.FLAG_ONE_SHOT);
             executionIntent.putExtra(TERMUX_SERVICE.EXTRA_PENDING_INTENT, pendingIntent);
         } else {
             // If execute in background is not enabled, do not expect results back from execution service and return result now so that plugin action does not timeout
@@ -450,4 +452,29 @@ public static String checkIfTermuxTaskerAllowExternalAppsPolicyIsViolated(final
         return errmsg;
     }
 
+    /**
+     * Try to get the next unique {@link PendingIntent} request code that isn't already being used by
+     * the app and which would create a unique {@link PendingIntent} that doesn't conflict with that
+     * of any other execution commands.
+     *
+     * @param context The {@link Context} for operations.
+     * @return Returns the request code that should be safe to use.
+     */
+    public synchronized static int getLastPendingIntentRequestCode(final Context context) {
+        if (context == null) return TERMUX_TASKER_APP.DEFAULT_VALUE_KEY_LAST_PENDING_INTENT_REQUEST_CODE;
+
+        TermuxTaskerAppSharedPreferences preferences = TermuxTaskerAppSharedPreferences.build(context);
+        if (preferences == null) return TERMUX_TASKER_APP.DEFAULT_VALUE_KEY_LAST_PENDING_INTENT_REQUEST_CODE;
+
+        int lastPendingIntentRequestCode = preferences.getLastPendingIntentRequestCode();
+
+        int nextPendingIntentRequestCode = lastPendingIntentRequestCode + 1;
+
+        if (nextPendingIntentRequestCode == Integer.MAX_VALUE || nextPendingIntentRequestCode < 0)
+            nextPendingIntentRequestCode = TERMUX_TASKER_APP.DEFAULT_VALUE_KEY_LAST_PENDING_INTENT_REQUEST_CODE;
+
+        preferences.setLastPendingIntentRequestCode(nextPendingIntentRequestCode);
+        return nextPendingIntentRequestCode;
+    }
+
 }
