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Clearing up invalid entries when SyncStorageEngine starts

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am: 271702fc28

Change-Id: I4943cf417be41679c2fa332223825dd01a477814
This commit is contained in:
Suprabh Shukla
2017-09-13 20:21:09 +00:00
committed by android-build-merger
parent 3ca0cc0ae6 271702fc28
commit 8b438236ce
1 changed files with 60 additions and 5 deletions
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65
services/core/java/com/android/server/content/SyncStorageEngine.java
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@@ -18,6 +18,7 @@ package com.android.server.content;
import android.accounts.Account;
import android.accounts.AccountAndUser;
import android.accounts.AccountManager;
import android.content.ComponentName;
import android.content.ContentResolver;
import android.content.Context;
@@ -26,6 +27,7 @@ import android.content.PeriodicSync;
import android.content.SyncInfo;
import android.content.SyncRequest;
import android.content.SyncStatusInfo;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteException;
@@ -404,6 +406,49 @@ public class SyncStorageEngine extends Handler {
public void onSyncRequest(EndPoint info, int reason, Bundle extras);
}
/**
* Validator that maintains a lazy cache of accounts and providers to tell if an authority or
* account is valid.
*/
private static class AccountAuthorityValidator {
final private AccountManager mAccountManager;
final private PackageManager mPackageManager;
final private SparseArray<Account[]> mAccountsCache;
final private SparseArray<ArrayMap<String, Boolean>> mProvidersPerUserCache;
AccountAuthorityValidator(Context context) {
mAccountManager = (AccountManager) context.getSystemService(Context.ACCOUNT_SERVICE);
mPackageManager = context.getPackageManager();
mAccountsCache = new SparseArray<>();
mProvidersPerUserCache = new SparseArray<>();
}
// An account is valid if an installed authenticator has previously created that account
// on the device
boolean isAccountValid(Account account, int userId) {
Account[] accountsForUser = mAccountsCache.get(userId);
if (accountsForUser == null) {
accountsForUser = mAccountManager.getAccountsAsUser(userId);
mAccountsCache.put(userId, accountsForUser);
}
return ArrayUtils.contains(accountsForUser, account);
}
// An authority is only valid if it has a content provider installed on the system
boolean isAuthorityValid(String authority, int userId) {
ArrayMap<String, Boolean> authorityMap = mProvidersPerUserCache.get(userId);
if (authorityMap == null) {
authorityMap = new ArrayMap<>();
mProvidersPerUserCache.put(userId, authorityMap);
}
if (!authorityMap.containsKey(authority)) {
authorityMap.put(authority,
mPackageManager.resolveContentProviderAsUser(authority, 0, userId) != null);
}
return authorityMap.get(authority);
}
}
// Primary list of all syncable authorities. Also our global lock.
private final SparseArray<AuthorityInfo> mAuthorities =
new SparseArray<AuthorityInfo>();
@@ -1862,12 +1907,13 @@ public class SyncStorageEngine extends Handler {
eventType = parser.next();
AuthorityInfo authority = null;
PeriodicSync periodicSync = null;
AccountAuthorityValidator validator = new AccountAuthorityValidator(mContext);
do {
if (eventType == XmlPullParser.START_TAG) {
tagName = parser.getName();
if (parser.getDepth() == 2) {
if ("authority".equals(tagName)) {
authority = parseAuthority(parser, version);
authority = parseAuthority(parser, version, validator);
periodicSync = null;
if (authority != null) {
if (authority.ident > highestAuthorityId) {
@@ -2000,7 +2046,8 @@ public class SyncStorageEngine extends Handler {
mMasterSyncAutomatically.put(userId, listen);
}
private AuthorityInfo parseAuthority(XmlPullParser parser, int version) {
private AuthorityInfo parseAuthority(XmlPullParser parser, int version,
AccountAuthorityValidator validator) {
AuthorityInfo authority = null;
int id = -1;
try {
@@ -2045,12 +2092,22 @@ public class SyncStorageEngine extends Handler {
info = new EndPoint(
new Account(accountName, accountType),
authorityName, userId);
if (validator.isAccountValid(info.account, userId)
&& validator.isAuthorityValid(authorityName, userId)) {
authority = getOrCreateAuthorityLocked(info, id, false);
} else {
EventLog.writeEvent(0x534e4554, "35028827", -1,
"account:" + info.account + " provider:" + authorityName + " user:"
+ userId);
}
} else {
info = new EndPoint(
new ComponentName(packageName, className),
userId);
authority = getOrCreateAuthorityLocked(info, id, false);
}
authority = getOrCreateAuthorityLocked(info, id, false);
}
if (authority != null) {
// If the version is 0 then we are upgrading from a file format that did not
// know about periodic syncs. In that case don't clear the list since we
// want the default, which is a daily periodic sync.
@@ -2059,8 +2116,6 @@ public class SyncStorageEngine extends Handler {
if (version > 0) {
authority.periodicSyncs.clear();
}
}
if (authority != null) {
authority.enabled = enabled == null || Boolean.parseBoolean(enabled);
if ("unknown".equals(syncable)) {
authority.syncable = -1;