1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.email.service; 18 19 import android.app.Service; 20 import android.content.AbstractThreadedSyncAdapter; 21 import android.content.ContentProviderClient; 22 import android.content.ContentResolver; 23 import android.content.ContentUris; 24 import android.content.ContentValues; 25 import android.content.Context; 26 import android.content.Intent; 27 import android.content.SyncResult; 28 import android.database.Cursor; 29 import android.net.Uri; 30 import android.os.Bundle; 31 import android.os.IBinder; 32 33 import com.android.email.R; 34 import com.android.emailcommon.TempDirectory; 35 import com.android.emailcommon.mail.MessagingException; 36 import com.android.emailcommon.provider.Account; 37 import com.android.emailcommon.provider.EmailContent; 38 import com.android.emailcommon.provider.EmailContent.AccountColumns; 39 import com.android.emailcommon.provider.EmailContent.Message; 40 import com.android.emailcommon.provider.Mailbox; 41 import com.android.emailcommon.service.EmailServiceProxy; 42 import com.android.emailcommon.service.EmailServiceStatus; 43 import com.android.mail.utils.LogUtils; 44 45 import java.util.ArrayList; 46 47 public class PopImapSyncAdapterService extends Service { 48 private static final String TAG = "PopImapSyncService"; 49 private SyncAdapterImpl mSyncAdapter = null; 50 51 public PopImapSyncAdapterService() { 52 super(); 53 } 54 55 private static class SyncAdapterImpl extends AbstractThreadedSyncAdapter { 56 public SyncAdapterImpl(Context context) { 57 super(context, true /* autoInitialize */); 58 } 59 60 @Override 61 public void onPerformSync(android.accounts.Account account, Bundle extras, 62 String authority, ContentProviderClient provider, SyncResult syncResult) { 63 PopImapSyncAdapterService.performSync(getContext(), account, extras, provider, 64 syncResult); 65 } 66 } 67 68 @Override 69 public void onCreate() { 70 super.onCreate(); 71 mSyncAdapter = new SyncAdapterImpl(getApplicationContext()); 72 } 73 74 @Override 75 public IBinder onBind(Intent intent) { 76 return mSyncAdapter.getSyncAdapterBinder(); 77 } 78 79 /** 80 * @return whether or not this mailbox retrieves its data from the server (as opposed to just 81 * a local mailbox that is never synced). 82 */ 83 private static boolean loadsFromServer(Context context, Mailbox m, String protocol) { 84 String legacyImapProtocol = context.getString(R.string.protocol_legacy_imap); 85 String pop3Protocol = context.getString(R.string.protocol_pop3); 86 if (legacyImapProtocol.equals(protocol)) { 87 // TODO: actually use a sync flag when creating the mailboxes. Right now we use an 88 // approximation for IMAP. 89 return m.mType != Mailbox.TYPE_DRAFTS 90 && m.mType != Mailbox.TYPE_OUTBOX 91 && m.mType != Mailbox.TYPE_SEARCH; 92 93 } else if (pop3Protocol.equals(protocol)) { 94 return Mailbox.TYPE_INBOX == m.mType; 95 } 96 97 return false; 98 } 99 100 private static void sync(final Context context, final long mailboxId, 101 final Bundle extras, final SyncResult syncResult, final boolean uiRefresh, 102 final int deltaMessageCount) { 103 TempDirectory.setTempDirectory(context); 104 Mailbox mailbox = Mailbox.restoreMailboxWithId(context, mailboxId); 105 if (mailbox == null) return; 106 Account account = Account.restoreAccountWithId(context, mailbox.mAccountKey); 107 if (account == null) return; 108 ContentResolver resolver = context.getContentResolver(); 109 String protocol = account.getProtocol(context); 110 if ((mailbox.mType != Mailbox.TYPE_OUTBOX) && 111 !loadsFromServer(context, mailbox, protocol)) { 112 // This is an update to a message in a non-syncing mailbox; delete this from the 113 // updates table and return 114 resolver.delete(Message.UPDATED_CONTENT_URI, Message.MAILBOX_KEY + "=?", 115 new String[] {Long.toString(mailbox.mId)}); 116 return; 117 } 118 LogUtils.d(TAG, "About to sync mailbox: " + mailbox.mDisplayName); 119 120 Uri mailboxUri = ContentUris.withAppendedId(Mailbox.CONTENT_URI, mailboxId); 121 ContentValues values = new ContentValues(); 122 // Set mailbox sync state 123 values.put(Mailbox.UI_SYNC_STATUS, 124 uiRefresh ? EmailContent.SYNC_STATUS_USER : EmailContent.SYNC_STATUS_BACKGROUND); 125 resolver.update(mailboxUri, values, null, null); 126 try { 127 try { 128 String legacyImapProtocol = context.getString(R.string.protocol_legacy_imap); 129 if (mailbox.mType == Mailbox.TYPE_OUTBOX) { 130 EmailServiceStub.sendMailImpl(context, account.mId); 131 } else { 132 EmailServiceStatus.syncMailboxStatus(resolver, extras, mailboxId, 133 EmailServiceStatus.IN_PROGRESS, 0); 134 final int status; 135 if (protocol.equals(legacyImapProtocol)) { 136 status = ImapService.synchronizeMailboxSynchronous(context, account, 137 mailbox, deltaMessageCount != 0, uiRefresh); 138 } else { 139 status = Pop3Service.synchronizeMailboxSynchronous(context, account, 140 mailbox, deltaMessageCount); 141 } 142 EmailServiceStatus.syncMailboxStatus(resolver, extras, mailboxId, status, 0); 143 } 144 } catch (MessagingException e) { 145 int cause = e.getExceptionType(); 146 // XXX It's no good to put the MessagingException.cause here, that's not the 147 // same set of values that we use in EmailServiceStatus. 148 EmailServiceStatus.syncMailboxStatus(resolver, extras, mailboxId, cause, 0); 149 switch(cause) { 150 case MessagingException.IOERROR: 151 syncResult.stats.numIoExceptions++; 152 break; 153 case MessagingException.AUTHENTICATION_FAILED: 154 syncResult.stats.numAuthExceptions++; 155 break; 156 } 157 } 158 } finally { 159 // Always clear our sync state and update sync time. 160 values.put(Mailbox.UI_SYNC_STATUS, EmailContent.SYNC_STATUS_NONE); 161 values.put(Mailbox.SYNC_TIME, System.currentTimeMillis()); 162 resolver.update(mailboxUri, values, null, null); 163 } 164 } 165 166 /** 167 * Partial integration with system SyncManager; we initiate manual syncs upon request 168 */ 169 private static void performSync(Context context, android.accounts.Account account, 170 Bundle extras, ContentProviderClient provider, SyncResult syncResult) { 171 // Find an EmailProvider account with the Account's email address 172 Cursor c = null; 173 try { 174 c = provider.query(com.android.emailcommon.provider.Account.CONTENT_URI, 175 Account.CONTENT_PROJECTION, AccountColumns.EMAIL_ADDRESS + "=?", 176 new String[] {account.name}, null); 177 if (c != null && c.moveToNext()) { 178 Account acct = new Account(); 179 acct.restore(c); 180 if (extras.getBoolean(ContentResolver.SYNC_EXTRAS_UPLOAD)) { 181 LogUtils.d(TAG, "Upload sync request for " + acct.mDisplayName); 182 // See if any boxes have mail... 183 ArrayList<Long> mailboxesToUpdate; 184 Cursor updatesCursor = provider.query(Message.UPDATED_CONTENT_URI, 185 new String[] {Message.MAILBOX_KEY}, 186 Message.ACCOUNT_KEY + "=?", 187 new String[] {Long.toString(acct.mId)}, 188 null); 189 try { 190 if ((updatesCursor == null) || (updatesCursor.getCount() == 0)) return; 191 mailboxesToUpdate = new ArrayList<Long>(); 192 while (updatesCursor.moveToNext()) { 193 Long mailboxId = updatesCursor.getLong(0); 194 if (!mailboxesToUpdate.contains(mailboxId)) { 195 mailboxesToUpdate.add(mailboxId); 196 } 197 } 198 } finally { 199 if (updatesCursor != null) { 200 updatesCursor.close(); 201 } 202 } 203 for (long mailboxId: mailboxesToUpdate) { 204 sync(context, mailboxId, extras, syncResult, false, 0); 205 } 206 } else { 207 LogUtils.d(TAG, "Sync request for " + acct.mDisplayName); 208 LogUtils.d(TAG, extras.toString()); 209 210 // We update our folder structure on every sync. 211 final EmailServiceProxy service = 212 EmailServiceUtils.getServiceForAccount(context, acct.mId); 213 service.updateFolderList(acct.mId); 214 215 // Get the id for the mailbox we want to sync. 216 long [] mailboxIds = Mailbox.getMailboxIdsFromBundle(extras); 217 if (mailboxIds == null || mailboxIds.length == 0) { 218 // No mailbox specified, just sync the inbox. 219 // TODO: IMAP may eventually want to allow multiple auto-sync mailboxes. 220 final long inboxId = Mailbox.findMailboxOfType(context, acct.mId, 221 Mailbox.TYPE_INBOX); 222 if (inboxId != Mailbox.NO_MAILBOX) { 223 mailboxIds = new long[1]; 224 mailboxIds[0] = inboxId; 225 } 226 } 227 228 if (mailboxIds != null) { 229 boolean uiRefresh = 230 extras.getBoolean(ContentResolver.SYNC_EXTRAS_EXPEDITED, false); 231 int deltaMessageCount = 232 extras.getInt(Mailbox.SYNC_EXTRA_DELTA_MESSAGE_COUNT, 0); 233 for (long mailboxId : mailboxIds) { 234 sync(context, mailboxId, extras, syncResult, uiRefresh, deltaMessageCount); 235 } 236 } 237 } 238 } 239 } catch (Exception e) { 240 e.printStackTrace(); 241 } finally { 242 if (c != null) { 243 c.close(); 244 } 245 } 246 } 247 } 248
