EmailBroadcastProcessorService.java revision e714bb9d153cfe13a7f0932e7d67ea08fa5a1d98
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.accounts.AccountManager; 20import android.app.IntentService; 21import android.content.ComponentName; 22import android.content.ContentResolver; 23import android.content.ContentUris; 24import android.content.ContentValues; 25import android.content.Context; 26import android.content.Intent; 27import android.content.pm.PackageManager; 28import android.database.Cursor; 29import android.net.Uri; 30import android.util.Log; 31 32import com.android.email.NotificationController; 33import com.android.email.Preferences; 34import com.android.email.SecurityPolicy; 35import com.android.email.activity.setup.AccountSettings; 36import com.android.emailcommon.Logging; 37import com.android.emailcommon.VendorPolicyLoader; 38import com.android.emailcommon.provider.Account; 39import com.android.emailcommon.provider.EmailContent.AccountColumns; 40import com.android.emailcommon.provider.HostAuth; 41 42/** 43 * The service that really handles broadcast intents on a worker thread. 44 * 45 * We make it a service, because: 46 * <ul> 47 * <li>So that it's less likely for the process to get killed. 48 * <li>Even if it does, the Intent that have started it will be re-delivered by the system, 49 * and we can start the process again. (Using {@link #setIntentRedelivery}). 50 * </ul> 51 * 52 * This also handles the DeviceAdminReceiver in SecurityPolicy, because it is also 53 * a BroadcastReceiver and requires the same processing semantics. 54 */ 55public class EmailBroadcastProcessorService extends IntentService { 56 // Action used for BroadcastReceiver entry point 57 private static final String ACTION_BROADCAST = "broadcast_receiver"; 58 59 // Dialing "*#*#36245#*#*" to open the debug screen. "36245" = "email" 60 private static final String ACTION_SECRET_CODE = "android.provider.Telephony.SECRET_CODE"; 61 private static final String SECRET_CODE_HOST_DEBUG_SCREEN = "36245"; 62 63 // This is a helper used to process DeviceAdminReceiver messages 64 private static final String ACTION_DEVICE_POLICY_ADMIN = "com.android.email.devicepolicy"; 65 private static final String EXTRA_DEVICE_POLICY_ADMIN = "message_code"; 66 67 // Broadcast received to initiate new message notification updates 68 public static final String ACTION_NOTIFY_NEW_MAIL = 69 "com.android.mail.action.update_notification"; 70 71 public EmailBroadcastProcessorService() { 72 // Class name will be the thread name. 73 super(EmailBroadcastProcessorService.class.getName()); 74 75 // Intent should be redelivered if the process gets killed before completing the job. 76 setIntentRedelivery(true); 77 } 78 79 /** 80 * Entry point for {@link EmailBroadcastReceiver}. 81 */ 82 public static void processBroadcastIntent(Context context, Intent broadcastIntent) { 83 Intent i = new Intent(context, EmailBroadcastProcessorService.class); 84 i.setAction(ACTION_BROADCAST); 85 i.putExtra(Intent.EXTRA_INTENT, broadcastIntent); 86 context.startService(i); 87 } 88 89 /** 90 * Entry point for {@link com.android.email.SecurityPolicy.PolicyAdmin}. These will 91 * simply callback to {@link 92 * com.android.email.SecurityPolicy#onDeviceAdminReceiverMessage(Context, int)}. 93 */ 94 public static void processDevicePolicyMessage(Context context, int message) { 95 Intent i = new Intent(context, EmailBroadcastProcessorService.class); 96 i.setAction(ACTION_DEVICE_POLICY_ADMIN); 97 i.putExtra(EXTRA_DEVICE_POLICY_ADMIN, message); 98 context.startService(i); 99 } 100 101 @Override 102 protected void onHandleIntent(Intent intent) { 103 // This method is called on a worker thread. 104 105 // Dispatch from entry point 106 final String action = intent.getAction(); 107 if (ACTION_BROADCAST.equals(action)) { 108 final Intent broadcastIntent = intent.getParcelableExtra(Intent.EXTRA_INTENT); 109 final String broadcastAction = broadcastIntent.getAction(); 110 111 if (Intent.ACTION_BOOT_COMPLETED.equals(broadcastAction)) { 112 onBootCompleted(); 113 } else if (ACTION_SECRET_CODE.equals(broadcastAction) 114 && SECRET_CODE_HOST_DEBUG_SCREEN.equals(broadcastIntent.getData().getHost())) { 115 AccountSettings.actionSettingsWithDebug(this); 116 } else if (AccountManager.LOGIN_ACCOUNTS_CHANGED_ACTION.equals(broadcastAction)) { 117 onSystemAccountChanged(); 118 } else if (ACTION_NOTIFY_NEW_MAIL.equals(broadcastAction)) { 119 NotificationController.notifyNewMail(this, broadcastIntent); 120 } 121 } else if (ACTION_DEVICE_POLICY_ADMIN.equals(action)) { 122 int message = intent.getIntExtra(EXTRA_DEVICE_POLICY_ADMIN, -1); 123 SecurityPolicy.onDeviceAdminReceiverMessage(this, message); 124 } 125 } 126 127 /** 128 * Handles {@link Intent#ACTION_BOOT_COMPLETED}. Called on a worker thread. 129 */ 130 private void onBootCompleted() { 131 performOneTimeInitialization(); 132 133 // Starts remote services, if any 134 EmailServiceUtils.startRemoteServices(this); 135 } 136 137 private void performOneTimeInitialization() { 138 final Preferences pref = Preferences.getPreferences(this); 139 int progress = pref.getOneTimeInitializationProgress(); 140 final int initialProgress = progress; 141 142 if (progress < 1) { 143 Log.i(Logging.LOG_TAG, "Onetime initialization: 1"); 144 progress = 1; 145 if (VendorPolicyLoader.getInstance(this).useAlternateExchangeStrings()) { 146 setComponentEnabled(EasAuthenticatorServiceAlternate.class, true); 147 setComponentEnabled(EasAuthenticatorService.class, false); 148 } 149 } 150 151 if (progress < 2) { 152 Log.i(Logging.LOG_TAG, "Onetime initialization: 2"); 153 progress = 2; 154 setImapDeletePolicy(this); 155 } 156 157 // Add your initialization steps here. 158 // Use "progress" to skip the initializations that's already done before. 159 // Using this preference also makes it safe when a user skips an upgrade. (i.e. upgrading 160 // version N to version N+2) 161 162 if (progress != initialProgress) { 163 pref.setOneTimeInitializationProgress(progress); 164 Log.i(Logging.LOG_TAG, "Onetime initialization: completed."); 165 } 166 } 167 168 /** 169 * Sets the delete policy to the correct value for all IMAP accounts. This will have no 170 * effect on either EAS or POP3 accounts. 171 */ 172 /*package*/ static void setImapDeletePolicy(Context context) { 173 ContentResolver resolver = context.getContentResolver(); 174 Cursor c = resolver.query(Account.CONTENT_URI, Account.CONTENT_PROJECTION, 175 null, null, null); 176 try { 177 while (c.moveToNext()) { 178 long recvAuthKey = c.getLong(Account.CONTENT_HOST_AUTH_KEY_RECV_COLUMN); 179 HostAuth recvAuth = HostAuth.restoreHostAuthWithId(context, recvAuthKey); 180 if (HostAuth.LEGACY_SCHEME_IMAP.equals(recvAuth.mProtocol)) { 181 int flags = c.getInt(Account.CONTENT_FLAGS_COLUMN); 182 flags &= ~Account.FLAGS_DELETE_POLICY_MASK; 183 flags |= Account.DELETE_POLICY_ON_DELETE << Account.FLAGS_DELETE_POLICY_SHIFT; 184 ContentValues cv = new ContentValues(); 185 cv.put(AccountColumns.FLAGS, flags); 186 long accountId = c.getLong(Account.CONTENT_ID_COLUMN); 187 Uri uri = ContentUris.withAppendedId(Account.CONTENT_URI, accountId); 188 resolver.update(uri, cv, null, null); 189 } 190 } 191 } finally { 192 c.close(); 193 } 194 } 195 196 private void setComponentEnabled(Class<?> clazz, boolean enabled) { 197 final ComponentName c = new ComponentName(this, clazz.getName()); 198 getPackageManager().setComponentEnabledSetting(c, 199 enabled ? PackageManager.COMPONENT_ENABLED_STATE_ENABLED 200 : PackageManager.COMPONENT_ENABLED_STATE_DISABLED, 201 PackageManager.DONT_KILL_APP); 202 } 203 204 private void onSystemAccountChanged() { 205 Log.i(Logging.LOG_TAG, "System accounts updated."); 206 MailService.reconcilePopAccountsSync(this); 207 208 // Start any remote services 209 EmailServiceUtils.startRemoteServices(this); 210 } 211} 212