feat(server): use sticky broadcast to prevent starting again when UI starts

1 files changed, 42 insertions, 0 deletions

diff --git a/app/src/main/java/eu/chainfire/librootjava/IPCBroadcastHelper.java b/app/src/main/java/eu/chainfire/librootjava/IPCBroadcastHelper.java
new file mode 100644
index 0000000..0b67ef0
--- /dev/null
+++ b/app/src/main/java/eu/chainfire/librootjava/IPCBroadcastHelper.java
@@ -0,0 +1,42 @@
+package eu.chainfire.librootjava;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.os.IBinder;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+
+import androidx.annotation.NonNull;
+
+/**
+ * A helper to create custom broadcasts
+ * Should be synced with {@link eu.chainfire.librootjava.RootIPC}.
+ */
+public class IPCBroadcastHelper {
+    public static Intent buildStickyBroadcastIntent (@NonNull RootIPC rootIPC) throws NoSuchFieldException, NoSuchMethodException, IllegalAccessException, InvocationTargetException {
+        // RootIPC.java part
+        Field fIBinder = rootIPC.getClass().getDeclaredField("binder");
+        Field fCode = rootIPC.getClass().getDeclaredField("code");
+        Field fPackageName = rootIPC.getClass().getDeclaredField("packageName");
+        fIBinder.setAccessible(true);
+        fCode.setAccessible(true);
+        fPackageName.setAccessible(true);
+        Intent intent = new Intent();
+        intent.setPackage((String) fPackageName.get(rootIPC));
+        intent.setAction(RootIPCReceiver.BROADCAST_ACTION);
+
+        Bundle bundle = new Bundle();
+        bundle.putBinder(RootIPCReceiver.BROADCAST_BINDER, (IBinder) fIBinder.get(rootIPC));
+        bundle.putInt(RootIPCReceiver.BROADCAST_CODE, fCode.getInt(rootIPC));
+        intent.putExtra(RootIPCReceiver.BROADCAST_EXTRA, bundle);
+
+        // Reflection.java part
+        Method mGetFlagReceiverFromShell = Reflection.class.getDeclaredMethod("getFlagReceiverFromShell");
+        mGetFlagReceiverFromShell.setAccessible(true);
+        intent.setFlags((int) mGetFlagReceiverFromShell.invoke(null));
+
+        return intent;
+    }
+}