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      1 /*
      2  * Copyright (C) 2017 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 package com.android.phone.euicc;
     17 
     18 import android.annotation.Nullable;
     19 import android.app.PendingIntent;
     20 import android.content.Intent;
     21 import android.service.euicc.EuiccService;
     22 import android.telephony.euicc.EuiccManager;
     23 import android.util.Log;
     24 
     25 /**
     26  * Trampoline activity to forward eUICC intents for error resolutions to the active UI
     27  * implementation.
     28  *
     29  * <p>Unlike {@link EuiccUiDispatcherActivity}, this activity is started with extras that must not
     30  * be tampered with, because they are used to resume the operation after the error is resolved. We
     31  * thus declare it as a separate activity which requires a locked-down permission to start.
     32  */
     33 public class EuiccResolutionUiDispatcherActivity extends EuiccUiDispatcherActivity {
     34     private static final String TAG = "EuiccResUiDispatcher";
     35 
     36     @Override
     37     @Nullable
     38     protected Intent getEuiccUiIntent() {
     39         String action = getIntent().getAction();
     40         if (!EuiccManager.ACTION_RESOLVE_ERROR.equals(action)) {
     41             Log.w(TAG, "Unsupported action: " + action);
     42             return null;
     43         }
     44 
     45         String euiccUiAction =
     46                 getIntent().getStringExtra(
     47                         EuiccManager.EXTRA_EMBEDDED_SUBSCRIPTION_RESOLUTION_ACTION);
     48         if (!EuiccService.RESOLUTION_ACTIONS.contains(euiccUiAction)) {
     49             Log.w(TAG, "Unknown resolution action: " + euiccUiAction);
     50             return null;
     51         }
     52 
     53         Intent euiccUiIntent = new Intent(euiccUiAction);
     54         // Propagate the extras from the original Intent.
     55         euiccUiIntent.putExtras(getIntent());
     56         return euiccUiIntent;
     57     }
     58 
     59     @Override
     60     protected void onDispatchFailure() {
     61         // Attempt to dispatch the callback so the caller knows the operation has failed.
     62         PendingIntent callbackIntent =
     63                 getIntent().getParcelableExtra(
     64                         EuiccManager.EXTRA_EMBEDDED_SUBSCRIPTION_RESOLUTION_CALLBACK_INTENT);
     65         if (callbackIntent != null) {
     66             try {
     67                 callbackIntent.send(EuiccManager.EMBEDDED_SUBSCRIPTION_RESULT_ERROR);
     68             } catch (PendingIntent.CanceledException e) {
     69                 // Caller canceled the callback; do nothing.
     70             }
     71         }
     72     }
     73 }
     74