EmailBroadcastProcessorService.java revision 2959a7e073c87e2fa5fab42ec543b352a91cf187 
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 com.android.email.Email;
20import com.android.email.ExchangeUtils;
21import com.android.email.Preferences;
22import com.android.email.VendorPolicyLoader;
23import com.android.email.activity.ActivityHelper;
24import com.android.email.activity.setup.AccountSettingsXL;
25
26import android.app.IntentService;
27import android.content.ComponentName;
28import android.content.Context;
29import android.content.Intent;
30import android.content.pm.PackageManager;
31import android.util.Config;
32import android.util.Log;
33
34/**
35 * The service that really handles broadcast intents on a worker thread.
36 *
37 * We make it a service, because:
38 * <ul>
39 *   <li>So that it's less likely for the process to get killed.
40 *   <li>Even if it does, the Intent that have started it will be re-delivered by the system,
41 *   and we can start the process again.  (Using {@link #setIntentRedelivery}).
42 * </ul>
43 */
44public class EmailBroadcastProcessorService extends IntentService {
45    // Dialing "*#*#36245#*#*" to open the debug screen.   "36245" = "email"
46    private static final String SECRET_CODE_ACTION = "android.provider.Telephony.SECRET_CODE";
47    private static final String SECRET_CODE_HOST_DEBUG_SCREEN = "36245";
48
49    public EmailBroadcastProcessorService() {
50        // Class name will be the thread name.
51        super(EmailBroadcastProcessorService.class.getName());
52
53        // Intent should be redelivered if the process gets killed before completing the job.
54        setIntentRedelivery(true);
55    }
56
57    /**
58     * Entry point for {@link EmailBroadcastReceiver}.
59     */
60    public static void processBroadcastIntent(Context context, Intent broadcastIntent) {
61        Intent i = new Intent(context, EmailBroadcastProcessorService.class);
62        i.putExtra(Intent.EXTRA_INTENT, broadcastIntent);
63        context.startService(i);
64    }
65
66    @Override
67    protected void onHandleIntent(Intent intent) {
68        // This method is called on a worker thread.
69
70        final Intent original = intent.getParcelableExtra(Intent.EXTRA_INTENT);
71        final String action = original.getAction();
72
73        if (Intent.ACTION_BOOT_COMPLETED.equals(action)) {
74            onBootCompleted();
75
76        // TODO: Do a better job when we get ACTION_DEVICE_STORAGE_LOW.
77        //       The code below came from very old code....
78        } else if (Intent.ACTION_DEVICE_STORAGE_LOW.equals(action)) {
79            // Stop IMAP/POP3 poll.
80            MailService.actionCancel(this);
81        } else if (Intent.ACTION_DEVICE_STORAGE_OK.equals(action)) {
82            enableComponentsIfNecessary();
83        } else if (SECRET_CODE_ACTION.equals(action)
84                && SECRET_CODE_HOST_DEBUG_SCREEN.equals(original.getData().getHost())) {
85            AccountSettingsXL.actionSettingsWithDebug(this);
86        }
87    }
88
89    private void enableComponentsIfNecessary() {
90        if (Email.setServicesEnabledSync(this)) {
91            // At least one account exists.
92            // TODO probably we should check if it's a POP/IMAP account.
93            MailService.actionReschedule(this);
94        }
95    }
96
97    /**
98     * Handles {@link Intent#ACTION_BOOT_COMPLETED}.  Called on a worker thread.
99     */
100    private void onBootCompleted() {
101        performOneTimeInitialization();
102
103        enableComponentsIfNecessary();
104
105        // Starts the service for Exchange, if supported.
106        ExchangeUtils.startExchangeService(this);
107    }
108
109    private void performOneTimeInitialization() {
110        final Preferences pref = Preferences.getPreferences(this);
111        int progress = pref.getOneTimeInitializationProgress();
112        final int initialProgress = progress;
113
114        if (progress < 1) {
115            Log.i(Email.LOG_TAG, "Onetime initialization: 1");
116            progress = 1;
117            if (VendorPolicyLoader.getInstance(this).useAlternateExchangeStrings()) {
118                setComponentEnabled(EasAuthenticatorServiceAlternate.class, true);
119                setComponentEnabled(EasAuthenticatorService.class, false);
120            }
121
122            ExchangeUtils.enableEasCalendarSync(this);
123        }
124
125        // Add your initialization steps here.
126        // Use "progress" to skip the initializations that's already done before.
127        // Using this preference also makes it safe when a user skips an upgrade.  (i.e. upgrading
128        // version N to version N+2)
129
130        if (progress != initialProgress) {
131            pref.setOneTimeInitializationProgress(progress);
132            Log.i(Email.LOG_TAG, "Onetime initialization: completed.");
133        }
134    }
135
136    private void setComponentEnabled(Class<?> clazz, boolean enabled) {
137        final ComponentName c = new ComponentName(this, clazz.getName());
138        getPackageManager().setComponentEnabledSetting(c,
139                enabled ? PackageManager.COMPONENT_ENABLED_STATE_ENABLED
140                        : PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
141                PackageManager.DONT_KILL_APP);
142    }
143}
144