1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
/*
* Copyright (C) 2016 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.accounts.AccountManagerInternal;
import android.app.backup.BlobBackupHelper;
import android.os.UserHandle;
import android.util.Slog;
import com.android.server.LocalServices;
/**
* Helper for handling backup of account manager specific state.
*/
public class AccountManagerBackupHelper extends BlobBackupHelper {
private static final String TAG = "AccountsBackup";
private static final boolean DEBUG = false;
// current schema of the backup state blob
private static final int STATE_VERSION = 1;
// key under which the account access grant state blob is committed to backup
private static final String KEY_ACCOUNT_ACCESS_GRANTS = "account_access_grants";
public AccountManagerBackupHelper() {
super(STATE_VERSION, KEY_ACCOUNT_ACCESS_GRANTS);
}
@Override
protected byte[] getBackupPayload(String key) {
AccountManagerInternal am = LocalServices.getService(AccountManagerInternal.class);
if (DEBUG) {
Slog.d(TAG, "Handling backup of " + key);
}
try {
switch (key) {
case KEY_ACCOUNT_ACCESS_GRANTS: {
return am.backupAccountAccessPermissions(UserHandle.USER_SYSTEM);
}
default: {
Slog.w(TAG, "Unexpected backup key " + key);
}
}
} catch (Exception e) {
Slog.e(TAG, "Unable to store payload " + key, e);
}
return new byte[0];
}
@Override
protected void applyRestoredPayload(String key, byte[] payload) {
AccountManagerInternal am = LocalServices.getService(AccountManagerInternal.class);
if (DEBUG) {
Slog.d(TAG, "Handling restore of " + key);
}
try {
switch (key) {
case KEY_ACCOUNT_ACCESS_GRANTS: {
am.restoreAccountAccessPermissions(payload, UserHandle.USER_SYSTEM);
} break;
default: {
Slog.w(TAG, "Unexpected restore key " + key);
}
}
} catch (Exception e) {
Slog.e(TAG, "Unable to restore key " + key, e);
}
}
}
|
