340 lines
15 KiB
Java
340 lines
15 KiB
Java
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.email.service;
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import android.app.Service;
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import android.content.AbstractThreadedSyncAdapter;
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import android.content.ContentProviderClient;
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import android.content.ContentResolver;
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import android.content.ContentUris;
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import android.content.ContentValues;
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import android.content.Context;
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import android.content.Intent;
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import android.content.SyncResult;
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import android.database.Cursor;
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import android.net.Uri;
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import android.os.Bundle;
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import android.os.IBinder;
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import com.android.email.R;
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import com.android.email.service.EmailServiceUtils.EmailServiceInfo;
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import com.android.emailcommon.TempDirectory;
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import com.android.emailcommon.mail.MessagingException;
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import com.android.emailcommon.provider.Account;
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import com.android.emailcommon.provider.EmailContent;
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import com.android.emailcommon.provider.EmailContent.AccountColumns;
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import com.android.emailcommon.provider.EmailContent.Message;
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import com.android.emailcommon.provider.EmailContent.MessageColumns;
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import com.android.emailcommon.provider.Mailbox;
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import com.android.emailcommon.service.EmailServiceProxy;
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import com.android.emailcommon.service.EmailServiceStatus;
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import com.android.mail.providers.UIProvider;
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import com.android.mail.utils.LogUtils;
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import java.util.ArrayList;
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public class PopImapSyncAdapterService extends Service {
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private static final String TAG = "PopImapSyncService";
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private AbstractThreadedSyncAdapter mSyncAdapter = null;
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private static String sPop3Protocol;
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private static String sLegacyImapProtocol;
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public PopImapSyncAdapterService() {
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super();
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}
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static class SyncAdapterImpl extends AbstractThreadedSyncAdapter {
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public SyncAdapterImpl(Context context) {
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super(context, true /* autoInitialize */);
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}
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@Override
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public void onPerformSync(android.accounts.Account account, Bundle extras,
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String authority, ContentProviderClient provider, SyncResult syncResult) {
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PopImapSyncAdapterService.performSync(getContext(), account, extras, provider,
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syncResult);
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}
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}
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public AbstractThreadedSyncAdapter getSyncAdapter() {
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return new SyncAdapterImpl(getApplicationContext());
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}
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@Override
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public void onCreate() {
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super.onCreate();
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mSyncAdapter = getSyncAdapter();
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}
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@Override
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public IBinder onBind(Intent intent) {
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return mSyncAdapter.getSyncAdapterBinder();
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}
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/**
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* @return whether or not this mailbox retrieves its data from the server (as opposed to just
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* a local mailbox that is never synced).
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*/
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private static boolean loadsFromServer(Context context, Mailbox m, Account acct) {
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if (isLegacyImapProtocol(context, acct)) {
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// TODO: actually use a sync flag when creating the mailboxes. Right now we use an
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// approximation for IMAP.
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return m.mType != Mailbox.TYPE_DRAFTS
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&& m.mType != Mailbox.TYPE_OUTBOX
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&& m.mType != Mailbox.TYPE_SEARCH;
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} else if (isPop3Protocol(context, acct)) {
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return Mailbox.TYPE_INBOX == m.mType;
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}
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return false;
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}
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private static boolean sync(final Context context, final long mailboxId,
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final Bundle extras, final SyncResult syncResult, final boolean uiRefresh,
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final int deltaMessageCount) {
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TempDirectory.setTempDirectory(context);
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Mailbox mailbox = Mailbox.restoreMailboxWithId(context, mailboxId);
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if (mailbox == null) return false;
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Account account = Account.restoreAccountWithId(context, mailbox.mAccountKey);
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if (account == null) return false;
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ContentResolver resolver = context.getContentResolver();
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if ((mailbox.mType != Mailbox.TYPE_OUTBOX) &&
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!loadsFromServer(context, mailbox, account)) {
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// This is an update to a message in a non-syncing mailbox; delete this from the
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// updates table and return
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resolver.delete(Message.UPDATED_CONTENT_URI, MessageColumns.MAILBOX_KEY + "=?",
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new String[] {Long.toString(mailbox.mId)});
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return true;
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}
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LogUtils.d(TAG, "About to sync mailbox: " + mailbox.mDisplayName);
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Uri mailboxUri = ContentUris.withAppendedId(Mailbox.CONTENT_URI, mailboxId);
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ContentValues values = new ContentValues();
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// Set mailbox sync state
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final int syncStatus = uiRefresh ? EmailContent.SYNC_STATUS_USER :
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EmailContent.SYNC_STATUS_BACKGROUND;
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values.put(Mailbox.UI_SYNC_STATUS, syncStatus);
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resolver.update(mailboxUri, values, null, null);
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try {
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int lastSyncResult;
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try {
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if (mailbox.mType == Mailbox.TYPE_OUTBOX) {
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EmailServiceStub.sendMailImpl(context, account.mId);
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} else {
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lastSyncResult = UIProvider.createSyncValue(syncStatus,
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EmailContent.LAST_SYNC_RESULT_SUCCESS);
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EmailServiceStatus.syncMailboxStatus(resolver, extras, mailboxId,
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EmailServiceStatus.IN_PROGRESS, 0, lastSyncResult);
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final int status;
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if (isLegacyImapProtocol(context, account)) {
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status = ImapService.synchronizeMailboxSynchronous(context, account,
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mailbox, deltaMessageCount != 0, uiRefresh);
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} else {
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status = Pop3Service.synchronizeMailboxSynchronous(context, account,
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mailbox, deltaMessageCount);
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}
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EmailServiceStatus.syncMailboxStatus(resolver, extras, mailboxId, status, 0,
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lastSyncResult);
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return true;
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}
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} catch (MessagingException e) {
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final int type = e.getExceptionType();
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// type must be translated into the domain of values used by EmailServiceStatus
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switch (type) {
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case MessagingException.IOERROR:
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lastSyncResult = UIProvider.createSyncValue(syncStatus,
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EmailContent.LAST_SYNC_RESULT_CONNECTION_ERROR);
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EmailServiceStatus.syncMailboxStatus(resolver, extras, mailboxId,
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EmailServiceStatus.FAILURE, 0, lastSyncResult);
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syncResult.stats.numIoExceptions++;
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break;
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case MessagingException.AUTHENTICATION_FAILED:
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lastSyncResult = UIProvider.createSyncValue(syncStatus,
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EmailContent.LAST_SYNC_RESULT_AUTH_ERROR);
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EmailServiceStatus.syncMailboxStatus(resolver, extras, mailboxId,
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EmailServiceStatus.FAILURE, 0, lastSyncResult);
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syncResult.stats.numAuthExceptions++;
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break;
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case MessagingException.SERVER_ERROR:
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lastSyncResult = UIProvider.createSyncValue(syncStatus,
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EmailContent.LAST_SYNC_RESULT_SERVER_ERROR);
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EmailServiceStatus.syncMailboxStatus(resolver, extras, mailboxId,
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EmailServiceStatus.FAILURE, 0, lastSyncResult);
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break;
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default:
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lastSyncResult = UIProvider.createSyncValue(syncStatus,
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EmailContent.LAST_SYNC_RESULT_INTERNAL_ERROR);
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EmailServiceStatus.syncMailboxStatus(resolver, extras, mailboxId,
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EmailServiceStatus.FAILURE, 0, lastSyncResult);
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}
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}
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} finally {
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// Always clear our sync state and update sync time.
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values.put(Mailbox.UI_SYNC_STATUS, EmailContent.SYNC_STATUS_NONE);
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values.put(Mailbox.SYNC_TIME, System.currentTimeMillis());
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resolver.update(mailboxUri, values, null, null);
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}
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return false;
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}
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/**
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* Partial integration with system SyncManager; we initiate manual syncs upon request
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*/
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private static void performSync(Context context, android.accounts.Account account,
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Bundle extras, ContentProviderClient provider, SyncResult syncResult) {
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// Find an EmailProvider account with the Account's email address
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Cursor c = null;
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try {
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c = provider.query(com.android.emailcommon.provider.Account.CONTENT_URI,
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Account.CONTENT_PROJECTION, AccountColumns.EMAIL_ADDRESS + "=?",
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new String[] {account.name}, null);
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if (c != null && c.moveToNext()) {
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Account acct = new Account();
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acct.restore(c);
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if (extras.getBoolean(ContentResolver.SYNC_EXTRAS_UPLOAD)) {
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LogUtils.d(TAG, "Upload sync request for " + acct.mDisplayName);
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// See if any boxes have mail...
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ArrayList<Long> mailboxesToUpdate;
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Cursor updatesCursor = provider.query(Message.UPDATED_CONTENT_URI,
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new String[] {MessageColumns.MAILBOX_KEY},
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MessageColumns.ACCOUNT_KEY + "=?",
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new String[] {Long.toString(acct.mId)},
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null);
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try {
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if ((updatesCursor == null) || (updatesCursor.getCount() == 0)) return;
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mailboxesToUpdate = new ArrayList<Long>();
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while (updatesCursor.moveToNext()) {
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Long mailboxId = updatesCursor.getLong(0);
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if (!mailboxesToUpdate.contains(mailboxId)) {
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mailboxesToUpdate.add(mailboxId);
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}
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}
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} finally {
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if (updatesCursor != null) {
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updatesCursor.close();
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}
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}
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for (long mailboxId: mailboxesToUpdate) {
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sync(context, mailboxId, extras, syncResult, false, 0);
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}
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} else {
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LogUtils.d(TAG, "Sync request for " + acct.mDisplayName);
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LogUtils.d(TAG, extras.toString());
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// We update our folder structure on every sync.
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final EmailServiceProxy service =
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EmailServiceUtils.getServiceForAccount(context, acct.mId);
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service.updateFolderList(acct.mId);
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// Get the id for the mailbox we want to sync.
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long [] mailboxIds = Mailbox.getMailboxIdsFromBundle(extras);
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if (mailboxIds == null || mailboxIds.length == 0) {
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EmailServiceInfo info = EmailServiceUtils.getServiceInfo(
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context, acct.getProtocol(context));
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// No mailbox specified, check if the protocol support auto-sync
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// multiple mailboxes. In that case retrieve the mailboxes to sync
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// from the account settings. Otherwise just sync the inbox.
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if (info.offerLookback) {
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mailboxIds = getLoopBackMailboxIdsForSync(context, acct);
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}
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if (mailboxIds == null || mailboxIds.length == 0) {
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final long inboxId = Mailbox.findMailboxOfType(context, acct.mId,
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Mailbox.TYPE_INBOX);
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if (inboxId != Mailbox.NO_MAILBOX) {
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mailboxIds = new long[1];
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mailboxIds[0] = inboxId;
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}
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}
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}
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if (mailboxIds != null) {
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boolean uiRefresh =
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extras.getBoolean(ContentResolver.SYNC_EXTRAS_EXPEDITED, false);
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int deltaMessageCount =
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extras.getInt(Mailbox.SYNC_EXTRA_DELTA_MESSAGE_COUNT, 0);
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boolean success = mailboxIds.length > 0;
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for (long mailboxId : mailboxIds) {
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boolean result = sync(context, mailboxId, extras, syncResult,
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uiRefresh, deltaMessageCount);
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if (!result) {
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success = false;
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}
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}
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// Initial sync performed?
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if (success) {
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// All mailboxes (that need a sync) are now synced. Assume we
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// have a valid sync key, in case this account has push support
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markAsInitialSyncKey(context, acct.mId);
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}
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}
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}
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}
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} catch (Exception e) {
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e.printStackTrace();
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} finally {
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if (c != null) {
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c.close();
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}
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}
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}
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private static void markAsInitialSyncKey(Context context, long accountId) {
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ContentResolver resolver = context.getContentResolver();
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Uri accountUri = ContentUris.withAppendedId(Account.CONTENT_URI, accountId);
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ContentValues values = new ContentValues();
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values.put(AccountColumns.SYNC_KEY, "1");
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resolver.update(accountUri, values, null, null);
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}
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private static boolean isLegacyImapProtocol(Context ctx, Account acct) {
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if (sLegacyImapProtocol == null) {
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sLegacyImapProtocol = ctx.getString(R.string.protocol_legacy_imap);
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}
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return acct.getProtocol(ctx).equals(sLegacyImapProtocol);
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}
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private static boolean isPop3Protocol(Context ctx, Account acct) {
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if (sPop3Protocol == null) {
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sPop3Protocol = ctx.getString(R.string.protocol_pop3);
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}
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return acct.getProtocol(ctx).equals(sPop3Protocol);
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}
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private static long[] getLoopBackMailboxIdsForSync(Context ctx, Account acct) {
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final Cursor c = Mailbox.getLoopBackMailboxIdsForSync(ctx.getContentResolver(), acct.mId);
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if (c == null) {
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// No mailboxes
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return null;
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}
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long[] mailboxes = new long[c.getCount()];
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try {
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int i = 0;
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while (c.moveToNext()) {
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mailboxes[i] = c.getLong(Mailbox.CONTENT_ID_COLUMN);
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i++;
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}
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} finally {
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c.close();
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}
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return mailboxes;
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}
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}
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