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.EmailContent.MessageColumns; 41 import com.android.emailcommon.provider.Mailbox; 42 import com.android.emailcommon.service.EmailServiceProxy; 43 import com.android.emailcommon.service.EmailServiceStatus; 44 import com.android.mail.providers.UIProvider; 45 import com.android.mail.utils.LogUtils; 46 47 import java.util.ArrayList; 48 49 public class PopImapSyncAdapterService extends Service { 50 private static final String TAG = "PopImapSyncService"; 51 private SyncAdapterImpl mSyncAdapter = null; 52 53 public PopImapSyncAdapterService() { 54 super(); 55 } 56 57 private static class SyncAdapterImpl extends AbstractThreadedSyncAdapter { 58 public SyncAdapterImpl(Context context) { 59 super(context, true /* autoInitialize */); 60 } 61 62 @Override 63 public void onPerformSync(android.accounts.Account account, Bundle extras, 64 String authority, ContentProviderClient provider, SyncResult syncResult) { 65 PopImapSyncAdapterService.performSync(getContext(), account, extras, provider, 66 syncResult); 67 } 68 } 69 70 @Override 71 public void onCreate() { 72 super.onCreate(); 73 mSyncAdapter = new SyncAdapterImpl(getApplicationContext()); 74 } 75 76 @Override 77 public IBinder onBind(Intent intent) { 78 return mSyncAdapter.getSyncAdapterBinder(); 79 } 80 81 /** 82 * @return whether or not this mailbox retrieves its data from the server (as opposed to just 83 * a local mailbox that is never synced). 84 */ 85 private static boolean loadsFromServer(Context context, Mailbox m, String protocol) { 86 String legacyImapProtocol = context.getString(R.string.protocol_legacy_imap); 87 String pop3Protocol = context.getString(R.string.protocol_pop3); 88 if (legacyImapProtocol.equals(protocol)) { 89 // TODO: actually use a sync flag when creating the mailboxes. Right now we use an 90 // approximation for IMAP. 91 return m.mType != Mailbox.TYPE_DRAFTS 92 && m.mType != Mailbox.TYPE_OUTBOX 93 && m.mType != Mailbox.TYPE_SEARCH; 94 95 } else if (pop3Protocol.equals(protocol)) { 96 return Mailbox.TYPE_INBOX == m.mType; 97 } 98 99 return false; 100 } 101 102 private static void sync(final Context context, final long mailboxId, 103 final Bundle extras, final SyncResult syncResult, final boolean uiRefresh, 104 final int deltaMessageCount) { 105 TempDirectory.setTempDirectory(context); 106 Mailbox mailbox = Mailbox.restoreMailboxWithId(context, mailboxId); 107 if (mailbox == null) return; 108 Account account = Account.restoreAccountWithId(context, mailbox.mAccountKey); 109 if (account == null) return; 110 ContentResolver resolver = context.getContentResolver(); 111 String protocol = account.getProtocol(context); 112 if ((mailbox.mType != Mailbox.TYPE_OUTBOX) && 113 !loadsFromServer(context, mailbox, protocol)) { 114 // This is an update to a message in a non-syncing mailbox; delete this from the 115 // updates table and return 116 resolver.delete(Message.UPDATED_CONTENT_URI, MessageColumns.MAILBOX_KEY + "=?", 117 new String[] {Long.toString(mailbox.mId)}); 118 return; 119 } 120 LogUtils.d(TAG, "About to sync mailbox: " + mailbox.mDisplayName); 121 122 Uri mailboxUri = ContentUris.withAppendedId(Mailbox.CONTENT_URI, mailboxId); 123 ContentValues values = new ContentValues(); 124 // Set mailbox sync state 125 final int syncStatus = uiRefresh ? EmailContent.SYNC_STATUS_USER : 126 EmailContent.SYNC_STATUS_BACKGROUND; 127 values.put(Mailbox.UI_SYNC_STATUS, syncStatus); 128 resolver.update(mailboxUri, values, null, null); 129 try { 130 int lastSyncResult; 131 try { 132 String legacyImapProtocol = context.getString(R.string.protocol_legacy_imap); 133 if (mailbox.mType == Mailbox.TYPE_OUTBOX) { 134 EmailServiceStub.sendMailImpl(context, account.mId); 135 } else { 136 lastSyncResult = UIProvider.createSyncValue(syncStatus, 137 EmailContent.LAST_SYNC_RESULT_SUCCESS); 138 EmailServiceStatus.syncMailboxStatus(resolver, extras, mailboxId, 139 EmailServiceStatus.IN_PROGRESS, 0, lastSyncResult); 140 final int status; 141 if (protocol.equals(legacyImapProtocol)) { 142 status = ImapService.synchronizeMailboxSynchronous(context, account, 143 mailbox, deltaMessageCount != 0, uiRefresh); 144 } else { 145 status = Pop3Service.synchronizeMailboxSynchronous(context, account, 146 mailbox, deltaMessageCount); 147 } 148 EmailServiceStatus.syncMailboxStatus(resolver, extras, mailboxId, status, 0, 149 lastSyncResult); 150 } 151 } catch (MessagingException e) { 152 final int type = e.getExceptionType(); 153 // type must be translated into the domain of values used by EmailServiceStatus 154 switch (type) { 155 case MessagingException.IOERROR: 156 lastSyncResult = UIProvider.createSyncValue(syncStatus, 157 EmailContent.LAST_SYNC_RESULT_CONNECTION_ERROR); 158 EmailServiceStatus.syncMailboxStatus(resolver, extras, mailboxId, 159 EmailServiceStatus.FAILURE, 0, lastSyncResult); 160 syncResult.stats.numIoExceptions++; 161 break; 162 case MessagingException.AUTHENTICATION_FAILED: 163 lastSyncResult = UIProvider.createSyncValue(syncStatus, 164 EmailContent.LAST_SYNC_RESULT_AUTH_ERROR); 165 EmailServiceStatus.syncMailboxStatus(resolver, extras, mailboxId, 166 EmailServiceStatus.FAILURE, 0, lastSyncResult); 167 syncResult.stats.numAuthExceptions++; 168 break; 169 case MessagingException.SERVER_ERROR: 170 lastSyncResult = UIProvider.createSyncValue(syncStatus, 171 EmailContent.LAST_SYNC_RESULT_SERVER_ERROR); 172 EmailServiceStatus.syncMailboxStatus(resolver, extras, mailboxId, 173 EmailServiceStatus.FAILURE, 0, lastSyncResult); 174 break; 175 176 default: 177 lastSyncResult = UIProvider.createSyncValue(syncStatus, 178 EmailContent.LAST_SYNC_RESULT_INTERNAL_ERROR); 179 EmailServiceStatus.syncMailboxStatus(resolver, extras, mailboxId, 180 EmailServiceStatus.FAILURE, 0, lastSyncResult); 181 } 182 } 183 } finally { 184 // Always clear our sync state and update sync time. 185 values.put(Mailbox.UI_SYNC_STATUS, EmailContent.SYNC_STATUS_NONE); 186 values.put(Mailbox.SYNC_TIME, System.currentTimeMillis()); 187 resolver.update(mailboxUri, values, null, null); 188 } 189 } 190 191 /** 192 * Partial integration with system SyncManager; we initiate manual syncs upon request 193 */ 194 private static void performSync(Context context, android.accounts.Account account, 195 Bundle extras, ContentProviderClient provider, SyncResult syncResult) { 196 // Find an EmailProvider account with the Account's email address 197 Cursor c = null; 198 try { 199 c = provider.query(com.android.emailcommon.provider.Account.CONTENT_URI, 200 Account.CONTENT_PROJECTION, AccountColumns.EMAIL_ADDRESS + "=?", 201 new String[] {account.name}, null); 202 if (c != null && c.moveToNext()) { 203 Account acct = new Account(); 204 acct.restore(c); 205 if (extras.getBoolean(ContentResolver.SYNC_EXTRAS_UPLOAD)) { 206 LogUtils.d(TAG, "Upload sync request for " + acct.mDisplayName); 207 // See if any boxes have mail... 208 ArrayList<Long> mailboxesToUpdate; 209 Cursor updatesCursor = provider.query(Message.UPDATED_CONTENT_URI, 210 new String[] {MessageColumns.MAILBOX_KEY}, 211 MessageColumns.ACCOUNT_KEY + "=?", 212 new String[] {Long.toString(acct.mId)}, 213 null); 214 try { 215 if ((updatesCursor == null) || (updatesCursor.getCount() == 0)) return; 216 mailboxesToUpdate = new ArrayList<Long>(); 217 while (updatesCursor.moveToNext()) { 218 Long mailboxId = updatesCursor.getLong(0); 219 if (!mailboxesToUpdate.contains(mailboxId)) { 220 mailboxesToUpdate.add(mailboxId); 221 } 222 } 223 } finally { 224 if (updatesCursor != null) { 225 updatesCursor.close(); 226 } 227 } 228 for (long mailboxId: mailboxesToUpdate) { 229 sync(context, mailboxId, extras, syncResult, false, 0); 230 } 231 } else { 232 LogUtils.d(TAG, "Sync request for " + acct.mDisplayName); 233 LogUtils.d(TAG, extras.toString()); 234 235 // We update our folder structure on every sync. 236 final EmailServiceProxy service = 237 EmailServiceUtils.getServiceForAccount(context, acct.mId); 238 service.updateFolderList(acct.mId); 239 240 // Get the id for the mailbox we want to sync. 241 long [] mailboxIds = Mailbox.getMailboxIdsFromBundle(extras); 242 if (mailboxIds == null || mailboxIds.length == 0) { 243 // No mailbox specified, just sync the inbox. 244 // TODO: IMAP may eventually want to allow multiple auto-sync mailboxes. 245 final long inboxId = Mailbox.findMailboxOfType(context, acct.mId, 246 Mailbox.TYPE_INBOX); 247 if (inboxId != Mailbox.NO_MAILBOX) { 248 mailboxIds = new long[1]; 249 mailboxIds[0] = inboxId; 250 } 251 } 252 253 if (mailboxIds != null) { 254 boolean uiRefresh = 255 extras.getBoolean(ContentResolver.SYNC_EXTRAS_EXPEDITED, false); 256 int deltaMessageCount = 257 extras.getInt(Mailbox.SYNC_EXTRA_DELTA_MESSAGE_COUNT, 0); 258 for (long mailboxId : mailboxIds) { 259 sync(context, mailboxId, extras, syncResult, uiRefresh, 260 deltaMessageCount); 261 } 262 } 263 } 264 } 265 } catch (Exception e) { 266 e.printStackTrace(); 267 } finally { 268 if (c != null) { 269 c.close(); 270 } 271 } 272 } 273 } 274
