michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: package org.mozilla.gecko.fxa.receivers;
michael@0: 
michael@0: import org.mozilla.gecko.background.common.log.Logger;
michael@0: import org.mozilla.gecko.fxa.FxAccountConstants;
michael@0: import org.mozilla.gecko.sync.config.AccountPickler;
michael@0: 
michael@0: import android.app.IntentService;
michael@0: import android.content.Context;
michael@0: import android.content.Intent;
michael@0: 
michael@0: /**
michael@0:  * A background service to clean up after a Firefox Account is deleted.
michael@0:  * <p>
michael@0:  * Note that we specifically handle deleting the pickle file using a Service and a
michael@0:  * BroadcastReceiver, rather than a background thread, to allow channels sharing a Firefox account
michael@0:  * to delete their respective pickle files (since, if one remains, the account will be restored
michael@0:  * when that channel is used).
michael@0:  */
michael@0: public class FxAccountDeletedService extends IntentService {
michael@0:   public static final String LOG_TAG = FxAccountDeletedService.class.getSimpleName();
michael@0: 
michael@0:   public FxAccountDeletedService() {
michael@0:     super(LOG_TAG);
michael@0:   }
michael@0: 
michael@0:   @Override
michael@0:   protected void onHandleIntent(final Intent intent) {
michael@0:     // Intent can, in theory, be null. Bug 1025937.
michael@0:     if (intent == null) {
michael@0:       Logger.debug(LOG_TAG, "Short-circuiting on null intent.");
michael@0:       return;
michael@0:     }
michael@0: 
michael@0:     final Context context = this;
michael@0: 
michael@0:     long intentVersion = intent.getLongExtra(
michael@0:         FxAccountConstants.ACCOUNT_DELETED_INTENT_VERSION_KEY, 0);
michael@0:     long expectedVersion = FxAccountConstants.ACCOUNT_DELETED_INTENT_VERSION;
michael@0:     if (intentVersion != expectedVersion) {
michael@0:       Logger.warn(LOG_TAG, "Intent malformed: version " + intentVersion + " given but " +
michael@0:           "version " + expectedVersion + "expected. Not cleaning up after deleted Account.");
michael@0:       return;
michael@0:     }
michael@0: 
michael@0:     // Android Account name, not Sync encoded account name.
michael@0:     final String accountName = intent.getStringExtra(
michael@0:         FxAccountConstants.ACCOUNT_DELETED_INTENT_ACCOUNT_KEY);
michael@0:     if (accountName == null) {
michael@0:       Logger.warn(LOG_TAG, "Intent malformed: no account name given. Not cleaning up after " +
michael@0:           "deleted Account.");
michael@0:       return;
michael@0:     }
michael@0: 
michael@0:     Logger.info(LOG_TAG, "Firefox account named " + accountName + " being removed; " +
michael@0:         "deleting saved pickle file '" + FxAccountConstants.ACCOUNT_PICKLE_FILENAME + "'.");
michael@0:     deletePickle(context);
michael@0:   }
michael@0: 
michael@0:   public static void deletePickle(final Context context) {
michael@0:     try {
michael@0:       AccountPickler.deletePickle(context, FxAccountConstants.ACCOUNT_PICKLE_FILENAME);
michael@0:     } catch (Exception e) {
michael@0:       // This should never happen, but we really don't want to die in a background thread.
michael@0:       Logger.warn(LOG_TAG, "Got exception deleting saved pickle file; ignoring.", e);
michael@0:     }
michael@0:   }
michael@0: }