mobile/android/base/fxa/receivers/FxAccountDeletedService.java

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/mobile/android/base/fxa/receivers/FxAccountDeletedService.java	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,71 @@
     1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.6 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.7 +
     1.8 +package org.mozilla.gecko.fxa.receivers;
     1.9 +
    1.10 +import org.mozilla.gecko.background.common.log.Logger;
    1.11 +import org.mozilla.gecko.fxa.FxAccountConstants;
    1.12 +import org.mozilla.gecko.sync.config.AccountPickler;
    1.13 +
    1.14 +import android.app.IntentService;
    1.15 +import android.content.Context;
    1.16 +import android.content.Intent;
    1.17 +
    1.18 +/**
    1.19 + * A background service to clean up after a Firefox Account is deleted.
    1.20 + * <p>
    1.21 + * Note that we specifically handle deleting the pickle file using a Service and a
    1.22 + * BroadcastReceiver, rather than a background thread, to allow channels sharing a Firefox account
    1.23 + * to delete their respective pickle files (since, if one remains, the account will be restored
    1.24 + * when that channel is used).
    1.25 + */
    1.26 +public class FxAccountDeletedService extends IntentService {
    1.27 +  public static final String LOG_TAG = FxAccountDeletedService.class.getSimpleName();
    1.28 +
    1.29 +  public FxAccountDeletedService() {
    1.30 +    super(LOG_TAG);
    1.31 +  }
    1.32 +
    1.33 +  @Override
    1.34 +  protected void onHandleIntent(final Intent intent) {
    1.35 +    // Intent can, in theory, be null. Bug 1025937.
    1.36 +    if (intent == null) {
    1.37 +      Logger.debug(LOG_TAG, "Short-circuiting on null intent.");
    1.38 +      return;
    1.39 +    }
    1.40 +
    1.41 +    final Context context = this;
    1.42 +
    1.43 +    long intentVersion = intent.getLongExtra(
    1.44 +        FxAccountConstants.ACCOUNT_DELETED_INTENT_VERSION_KEY, 0);
    1.45 +    long expectedVersion = FxAccountConstants.ACCOUNT_DELETED_INTENT_VERSION;
    1.46 +    if (intentVersion != expectedVersion) {
    1.47 +      Logger.warn(LOG_TAG, "Intent malformed: version " + intentVersion + " given but " +
    1.48 +          "version " + expectedVersion + "expected. Not cleaning up after deleted Account.");
    1.49 +      return;
    1.50 +    }
    1.51 +
    1.52 +    // Android Account name, not Sync encoded account name.
    1.53 +    final String accountName = intent.getStringExtra(
    1.54 +        FxAccountConstants.ACCOUNT_DELETED_INTENT_ACCOUNT_KEY);
    1.55 +    if (accountName == null) {
    1.56 +      Logger.warn(LOG_TAG, "Intent malformed: no account name given. Not cleaning up after " +
    1.57 +          "deleted Account.");
    1.58 +      return;
    1.59 +    }
    1.60 +
    1.61 +    Logger.info(LOG_TAG, "Firefox account named " + accountName + " being removed; " +
    1.62 +        "deleting saved pickle file '" + FxAccountConstants.ACCOUNT_PICKLE_FILENAME + "'.");
    1.63 +    deletePickle(context);
    1.64 +  }
    1.65 +
    1.66 +  public static void deletePickle(final Context context) {
    1.67 +    try {
    1.68 +      AccountPickler.deletePickle(context, FxAccountConstants.ACCOUNT_PICKLE_FILENAME);
    1.69 +    } catch (Exception e) {
    1.70 +      // This should never happen, but we really don't want to die in a background thread.
    1.71 +      Logger.warn(LOG_TAG, "Got exception deleting saved pickle file; ignoring.", e);
    1.72 +    }
    1.73 +  }
    1.74 +}

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