Merge "Clearing up invalid entries when SyncStorageEngine starts" into oc-dev (170915b4) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/content/SyncStorageEngine.java

+67 −14

Original line number	Diff line number	Diff line
		@@ -18,6 +18,7 @@ package com.android.server.content;

		import android.accounts.Account;
		import android.accounts.AccountAndUser;
		import android.accounts.AccountManager;
		import android.app.backup.BackupManager;
		import android.content.ComponentName;
		import android.content.ContentResolver;
		@@ -27,6 +28,7 @@ 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;
		@@ -350,6 +352,50 @@ public class SyncStorageEngine extends Handler {
		void onAuthorityRemoved(EndPoint removedAuthority);
		}

		/**
		* 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 = context.getSystemService(AccountManager.class);
		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,
		PackageManager.MATCH_DIRECT_BOOT_AWARE
		\| PackageManager.MATCH_DIRECT_BOOT_UNAWARE, userId) != null);
		}
		return authorityMap.get(authority);
		}
		}

		// Primary list of all syncable authorities. Also our global lock.
		private final SparseArray<AuthorityInfo> mAuthorities =
		new SparseArray<AuthorityInfo>();
		@@ -1502,12 +1548,13 @@ 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) {
		@@ -1636,7 +1683,8 @@ 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 {
		@@ -1676,22 +1724,27 @@ public class SyncStorageEngine extends Handler {
		if (Log.isLoggable(TAG_FILE, Log.VERBOSE)) {
		Slog.v(TAG_FILE, "Creating authority entry");
		}
		EndPoint info = null;
		if (accountName != null && authorityName != null) {
		info = new EndPoint(
		EndPoint info = new EndPoint(
		new Account(accountName, accountType),
		authorityName, userId);
		}
		if (info != null) {
		if (validator.isAccountValid(info.account, userId)
		&& validator.isAuthorityValid(authorityName, userId)) {
		authority = getOrCreateAuthorityLocked(info, id, false);
		// 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.
		// Otherwise clear out this default list since we will populate it later with
		// Otherwise clear out this default list since we will populate it later
		// with
		// the periodic sync descriptions that are read from the configuration file.
		if (version > 0) {
		authority.periodicSyncs.clear();
		}
		} else {
		EventLog.writeEvent(0x534e4554, "35028827", -1,
		"account:" + info.account + " provider:" + authorityName + " user:"
		+ userId);
		}
		}
		}
		if (authority != null) {