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 17package com.android.email.service; 18 19import android.app.Service; 20import android.content.AbstractThreadedSyncAdapter; 21import android.content.ContentProviderClient; 22import android.content.ContentResolver; 23import android.content.ContentUris; 24import android.content.ContentValues; 25import android.content.Context; 26import android.content.Intent; 27import android.content.SyncResult; 28import android.database.Cursor; 29import android.net.Uri; 30import android.os.Bundle; 31import android.os.IBinder; 32 33import com.android.email.R; 34import com.android.emailcommon.TempDirectory; 35import com.android.emailcommon.mail.MessagingException; 36import com.android.emailcommon.provider.Account; 37import com.android.emailcommon.provider.EmailContent; 38import com.android.emailcommon.provider.EmailContent.AccountColumns; 39import com.android.emailcommon.provider.EmailContent.Message; 40import com.android.emailcommon.provider.EmailContent.MessageColumns; 41import com.android.emailcommon.provider.Mailbox; 42import com.android.emailcommon.service.EmailServiceProxy; 43import com.android.emailcommon.service.EmailServiceStatus; 44import com.android.mail.providers.UIProvider; 45import com.android.mail.utils.LogUtils; 46 47import java.util.ArrayList; 48 49public 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 values.put(Mailbox.UI_SYNC_STATUS, 126 uiRefresh ? EmailContent.SYNC_STATUS_USER : EmailContent.SYNC_STATUS_BACKGROUND); 127 resolver.update(mailboxUri, values, null, null); 128 try { 129 try { 130 String legacyImapProtocol = context.getString(R.string.protocol_legacy_imap); 131 if (mailbox.mType == Mailbox.TYPE_OUTBOX) { 132 EmailServiceStub.sendMailImpl(context, account.mId); 133 } else { 134 EmailServiceStatus.syncMailboxStatus(resolver, extras, mailboxId, 135 EmailServiceStatus.IN_PROGRESS, 0, UIProvider.LastSyncResult.SUCCESS); 136 final int status; 137 if (protocol.equals(legacyImapProtocol)) { 138 status = ImapService.synchronizeMailboxSynchronous(context, account, 139 mailbox, deltaMessageCount != 0, uiRefresh); 140 } else { 141 status = Pop3Service.synchronizeMailboxSynchronous(context, account, 142 mailbox, deltaMessageCount); 143 } 144 EmailServiceStatus.syncMailboxStatus(resolver, extras, mailboxId, status, 0, 145 UIProvider.LastSyncResult.SUCCESS); 146 } 147 } catch (MessagingException e) { 148 final int type = e.getExceptionType(); 149 // type must be translated into the domain of values used by EmailServiceStatus 150 switch(type) { 151 case MessagingException.IOERROR: 152 EmailServiceStatus.syncMailboxStatus(resolver, extras, mailboxId, type, 0, 153 UIProvider.LastSyncResult.CONNECTION_ERROR); 154 syncResult.stats.numIoExceptions++; 155 break; 156 case MessagingException.AUTHENTICATION_FAILED: 157 EmailServiceStatus.syncMailboxStatus(resolver, extras, mailboxId, type, 0, 158 UIProvider.LastSyncResult.AUTH_ERROR); 159 syncResult.stats.numAuthExceptions++; 160 break; 161 case MessagingException.SERVER_ERROR: 162 EmailServiceStatus.syncMailboxStatus(resolver, extras, mailboxId, type, 0, 163 UIProvider.LastSyncResult.SERVER_ERROR); 164 break; 165 166 default: 167 EmailServiceStatus.syncMailboxStatus(resolver, extras, mailboxId, type, 0, 168 UIProvider.LastSyncResult.INTERNAL_ERROR); 169 } 170 } 171 } finally { 172 // Always clear our sync state and update sync time. 173 values.put(Mailbox.UI_SYNC_STATUS, EmailContent.SYNC_STATUS_NONE); 174 values.put(Mailbox.SYNC_TIME, System.currentTimeMillis()); 175 resolver.update(mailboxUri, values, null, null); 176 } 177 } 178 179 /** 180 * Partial integration with system SyncManager; we initiate manual syncs upon request 181 */ 182 private static void performSync(Context context, android.accounts.Account account, 183 Bundle extras, ContentProviderClient provider, SyncResult syncResult) { 184 // Find an EmailProvider account with the Account's email address 185 Cursor c = null; 186 try { 187 c = provider.query(com.android.emailcommon.provider.Account.CONTENT_URI, 188 Account.CONTENT_PROJECTION, AccountColumns.EMAIL_ADDRESS + "=?", 189 new String[] {account.name}, null); 190 if (c != null && c.moveToNext()) { 191 Account acct = new Account(); 192 acct.restore(c); 193 if (extras.getBoolean(ContentResolver.SYNC_EXTRAS_UPLOAD)) { 194 LogUtils.d(TAG, "Upload sync request for " + acct.mDisplayName); 195 // See if any boxes have mail... 196 ArrayList<Long> mailboxesToUpdate; 197 Cursor updatesCursor = provider.query(Message.UPDATED_CONTENT_URI, 198 new String[] {MessageColumns.MAILBOX_KEY}, 199 MessageColumns.ACCOUNT_KEY + "=?", 200 new String[] {Long.toString(acct.mId)}, 201 null); 202 try { 203 if ((updatesCursor == null) || (updatesCursor.getCount() == 0)) return; 204 mailboxesToUpdate = new ArrayList<Long>(); 205 while (updatesCursor.moveToNext()) { 206 Long mailboxId = updatesCursor.getLong(0); 207 if (!mailboxesToUpdate.contains(mailboxId)) { 208 mailboxesToUpdate.add(mailboxId); 209 } 210 } 211 } finally { 212 if (updatesCursor != null) { 213 updatesCursor.close(); 214 } 215 } 216 for (long mailboxId: mailboxesToUpdate) { 217 sync(context, mailboxId, extras, syncResult, false, 0); 218 } 219 } else { 220 LogUtils.d(TAG, "Sync request for " + acct.mDisplayName); 221 LogUtils.d(TAG, extras.toString()); 222 223 // We update our folder structure on every sync. 224 final EmailServiceProxy service = 225 EmailServiceUtils.getServiceForAccount(context, acct.mId); 226 service.updateFolderList(acct.mId); 227 228 // Get the id for the mailbox we want to sync. 229 long [] mailboxIds = Mailbox.getMailboxIdsFromBundle(extras); 230 if (mailboxIds == null || mailboxIds.length == 0) { 231 // No mailbox specified, just sync the inbox. 232 // TODO: IMAP may eventually want to allow multiple auto-sync mailboxes. 233 final long inboxId = Mailbox.findMailboxOfType(context, acct.mId, 234 Mailbox.TYPE_INBOX); 235 if (inboxId != Mailbox.NO_MAILBOX) { 236 mailboxIds = new long[1]; 237 mailboxIds[0] = inboxId; 238 } 239 } 240 241 if (mailboxIds != null) { 242 boolean uiRefresh = 243 extras.getBoolean(ContentResolver.SYNC_EXTRAS_EXPEDITED, false); 244 int deltaMessageCount = 245 extras.getInt(Mailbox.SYNC_EXTRA_DELTA_MESSAGE_COUNT, 0); 246 for (long mailboxId : mailboxIds) { 247 sync(context, mailboxId, extras, syncResult, uiRefresh, 248 deltaMessageCount); 249 } 250 } 251 } 252 } 253 } catch (Exception e) { 254 e.printStackTrace(); 255 } finally { 256 if (c != null) { 257 c.close(); 258 } 259 } 260 } 261} 262