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Fix crash on Knox devices with USB blocking policies

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This commit is contained in:
Cameron Gutman 2018-02-10 16:56:01 -08:00
parent 617c8582b4
commit 03ecf3e5ac
2 changed files with 14 additions and 1 deletions
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12
app/src/main/java/com/limelight/binding/input/driver/UsbDriverService.java
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@ -14,8 +14,10 @@ import android.os.Build;
import android.os.Handler;
import android.os.IBinder;
import android.view.InputDevice;
import android.widget.Toast;
import com.limelight.LimeLog;
import com.limelight.R;
import java.util.ArrayList;
@ -121,7 +123,17 @@ public class UsbDriverService extends Service implements UsbDriverListener {
// Do we have permission yet?
if (!usbManager.hasPermission(device)) {
// Let's ask for permission
try {
// This function is not documented as throwing any exceptions (denying access
// is indicated by calling the PendingIntent with a false result). However,
// Samsung Knox has some policies which block this request, but rather than
// just returning a false result or returning 0 enumerated devices,
// they throw an undocumented SecurityException from this call, crashing
// the whole app. :(
usbManager.requestPermission(device, PendingIntent.getBroadcast(UsbDriverService.this, 0, new Intent(ACTION_USB_PERMISSION), 0));
} catch (SecurityException e) {
Toast.makeText(this, this.getText(R.string.error_usb_prohibited), Toast.LENGTH_LONG).show();
}
return;
}

1
app/src/main/res/values/strings.xml
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@ -51,6 +51,7 @@
<string name="message_decoding_error">Moonlight has crashed due to a problem with this device\'s video decoder. Try adjusting the streaming settings if the crashes continue.</string>
<string name="title_decoding_reset">Video Settings Reset</string>
<string name="message_decoding_reset">Your device\'s video decoder continues to crash at your selected streaming settings. Your streaming settings have been reset to default.</string>
<string name="error_usb_prohibited">USB access is prohibited by your device administrator. Check your Knox or MDM settings.</string>
<!-- Start application messages -->
<string name="conn_establishing_title">Establishing Connection</string>