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