252 lines
11 KiB
Java
252 lines
11 KiB
Java
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/*
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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.accounts.OperationCanceledException;
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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 android.util.Log;
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import com.android.email.R;
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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.HostAuth;
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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 java.util.ArrayList;
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public class PopImapSyncAdapterService extends Service {
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private static final String TAG = "PopImapSyncAdapterService";
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private SyncAdapterImpl mSyncAdapter = null;
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private static final Object sSyncAdapterLock = new Object();
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public PopImapSyncAdapterService() {
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super();
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}
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private static class SyncAdapterImpl extends AbstractThreadedSyncAdapter {
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private Context mContext;
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public SyncAdapterImpl(Context context) {
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super(context, true /* autoInitialize */);
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mContext = context;
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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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try {
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PopImapSyncAdapterService.performSync(mContext, account, extras,
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authority, provider, syncResult);
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} catch (OperationCanceledException e) {
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}
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}
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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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synchronized (sSyncAdapterLock) {
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mSyncAdapter = new SyncAdapterImpl(getApplicationContext());
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}
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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, String protocol) {
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String legacyImapProtocol = context.getString(R.string.protocol_legacy_imap);
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if (legacyImapProtocol.equals(protocol)) {
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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 (HostAuth.LEGACY_SCHEME_POP3.equals(protocol)) {
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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 void sync(Context context, long mailboxId, SyncResult syncResult,
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boolean uiRefresh) {
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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;
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Account account = Account.restoreAccountWithId(context, mailbox.mAccountKey);
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if (account == null) return;
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ContentResolver resolver = context.getContentResolver();
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String protocol = account.getProtocol(context);
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if ((mailbox.mType != Mailbox.TYPE_OUTBOX) &&
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!loadsFromServer(context, mailbox, protocol)) {
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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, Message.MAILBOX_KEY + "=?",
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new String[] {Long.toString(mailbox.mId)});
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return;
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}
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Log.d(TAG, "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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values.put(Mailbox.UI_SYNC_STATUS,
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uiRefresh ? EmailContent.SYNC_STATUS_USER : EmailContent.SYNC_STATUS_BACKGROUND);
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resolver.update(mailboxUri, values, null, null);
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try {
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try {
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String legacyImapProtocol = context.getString(R.string.protocol_legacy_imap);
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if (mailbox.mType == Mailbox.TYPE_OUTBOX) {
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EmailServiceStub.sendMailImpl(context, account.mId);
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} else if (protocol.equals(legacyImapProtocol)) {
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ImapService.synchronizeMailboxSynchronous(context, account, mailbox);
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} else {
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Pop3Service.synchronizeMailboxSynchronous(context, account, mailbox);
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}
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} catch (MessagingException e) {
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int cause = e.getExceptionType();
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switch(cause) {
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case MessagingException.IOERROR:
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syncResult.stats.numIoExceptions++;
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break;
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case MessagingException.AUTHENTICATION_FAILED:
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syncResult.stats.numAuthExceptions++;
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break;
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}
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}
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} finally {
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// Always clear our sync state
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values.put(Mailbox.UI_SYNC_STATUS, EmailContent.SYNC_STATUS_NONE);
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resolver.update(mailboxUri, values, null, null);
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}
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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, String authority, ContentProviderClient provider, SyncResult syncResult)
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throws OperationCanceledException {
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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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Log.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[] {Message.MAILBOX_KEY},
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Message.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, syncResult, false);
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}
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} else {
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Log.d(TAG, "Sync request for " + acct.mDisplayName);
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Log.d(TAG, extras.toString());
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long mailboxId = extras.getLong(EmailServiceStub.SYNC_EXTRA_MAILBOX_ID,
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Mailbox.NO_MAILBOX);
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boolean isInbox = false;
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if (mailboxId == Mailbox.NO_MAILBOX) {
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mailboxId = Mailbox.findMailboxOfType(context, acct.mId,
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Mailbox.TYPE_INBOX);
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if (mailboxId == Mailbox.NO_MAILBOX) {
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// Update folders?
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EmailServiceProxy service =
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EmailServiceUtils.getServiceForAccount(context, null, acct.mId);
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service.updateFolderList(acct.mId);
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}
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isInbox = true;
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}
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if (mailboxId == Mailbox.NO_MAILBOX) return;
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boolean uiRefresh =
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extras.getBoolean(ContentResolver.SYNC_EXTRAS_EXPEDITED, false);
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sync(context, mailboxId, syncResult, uiRefresh);
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// Outbox is a special case here
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Mailbox mailbox = Mailbox.restoreMailboxWithId(context, mailboxId);
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if (mailbox.mType == Mailbox.TYPE_OUTBOX) {
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return;
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}
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// Convert from minutes to seconds
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int syncFrequency = acct.mSyncInterval * 60;
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// Values < 0 are for "never" or "push"; 0 is undefined
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if (syncFrequency <= 0) return;
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Bundle ex = new Bundle();
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if (!isInbox) {
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ex.putLong(EmailServiceStub.SYNC_EXTRA_MAILBOX_ID, mailboxId);
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}
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Log.d(TAG, "Setting periodic sync for " + acct.mDisplayName + ": " +
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syncFrequency + " seconds");
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ContentResolver.addPeriodicSync(account, authority, ex, syncFrequency);
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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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}
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