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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.server.backup;
import android.annotation.StringDef;
import android.annotation.UserIdInt;
import android.app.AppGlobals;
import android.app.backup.BlobBackupHelper;
import android.content.pm.IPackageManager;
import android.content.pm.verify.domain.DomainVerificationManager;
import android.util.Slog;
public class PreferredActivityBackupHelper extends BlobBackupHelper {
private static final String TAG = "PreferredBackup";
private static final boolean DEBUG = false;
// current schema of the backup state blob
private static final int STATE_VERSION = 4;
// key under which the preferred-activity state blob is committed to backup
private static final String KEY_PREFERRED = "preferred-activity";
// key for default-browser [etc] state
private static final String KEY_DEFAULT_APPS = "default-apps";
/**
* Intent-filter verification state
* @deprecated Replaced by {@link #KEY_DOMAIN_VERIFICATION}, retained to ensure the key is
* never reused.
*/
@Deprecated
private static final String KEY_INTENT_VERIFICATION = "intent-verification";
/**
* State for {@link DomainVerificationManager}.
*/
private static final String KEY_DOMAIN_VERIFICATION = "domain-verification";
private static final String[] KEYS = new String[] {
KEY_PREFERRED,
KEY_DEFAULT_APPS,
KEY_INTENT_VERIFICATION,
KEY_DOMAIN_VERIFICATION
};
@StringDef(value = {
KEY_PREFERRED,
KEY_DEFAULT_APPS,
KEY_INTENT_VERIFICATION,
KEY_DOMAIN_VERIFICATION
})
private @interface Key {
}
@UserIdInt
private final int mUserId;
public PreferredActivityBackupHelper(@UserIdInt int userId) {
super(STATE_VERSION, KEYS);
mUserId = userId;
}
@Override
protected byte[] getBackupPayload(String key) {
IPackageManager pm = AppGlobals.getPackageManager();
if (DEBUG) {
Slog.d(TAG, "Handling backup of " + key);
}
try {
switch (key) {
case KEY_PREFERRED:
return pm.getPreferredActivityBackup(mUserId);
case KEY_DEFAULT_APPS:
return pm.getDefaultAppsBackup(mUserId);
case KEY_INTENT_VERIFICATION:
// Deprecated
return null;
case KEY_DOMAIN_VERIFICATION:
return pm.getDomainVerificationBackup(mUserId);
default:
Slog.w(TAG, "Unexpected backup key " + key);
}
} catch (Exception e) {
Slog.e(TAG, "Unable to store payload " + key, e);
}
return null;
}
@Override
protected void applyRestoredPayload(@Key String key, byte[] payload) {
IPackageManager pm = AppGlobals.getPackageManager();
if (DEBUG) {
Slog.d(TAG, "Handling restore of " + key);
}
try {
switch (key) {
case KEY_PREFERRED:
pm.restorePreferredActivities(payload, mUserId);
break;
case KEY_DEFAULT_APPS:
pm.restoreDefaultApps(payload, mUserId);
break;
case KEY_INTENT_VERIFICATION:
// Deprecated
break;
case KEY_DOMAIN_VERIFICATION:
pm.restoreDomainVerification(payload, mUserId);
break;
default:
Slog.w(TAG, "Unexpected restore key " + key);
}
} catch (Exception e) {
Slog.e(TAG, "Unable to restore key " + key, e);
}
}
}
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