Home | History | Annotate | Download | only in impl 
      1 /*
      2  * Copyright (C) 2017 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.voicemail.impl;
     18 
     19 import android.annotation.TargetApi;
     20 import android.content.Context;
     21 import android.content.Intent;
     22 import android.os.Build.VERSION_CODES;
     23 import android.os.UserManager;
     24 import android.preference.PreferenceManager;
     25 import android.support.annotation.MainThread;
     26 import android.support.annotation.NonNull;
     27 import android.telecom.PhoneAccountHandle;
     28 import android.telephony.TelephonyManager;
     29 import android.telephony.VisualVoicemailService;
     30 import android.telephony.VisualVoicemailSms;
     31 import com.android.dialer.logging.DialerImpression;
     32 import com.android.dialer.logging.Logger;
     33 import com.android.voicemail.VoicemailComponent;
     34 import com.android.voicemail.impl.settings.VisualVoicemailSettingsUtil;
     35 import com.android.voicemail.impl.sms.LegacyModeSmsHandler;
     36 import com.android.voicemail.impl.sync.VvmAccountManager;
     37 
     38 /** Implements {@link VisualVoicemailService} to receive visual voicemail events */
     39 @TargetApi(VERSION_CODES.O)
     40 public class OmtpService extends VisualVoicemailService {
     41 
     42   private static final String TAG = "VvmOmtpService";
     43 
     44   public static final String ACTION_SMS_RECEIVED = "com.android.vociemailomtp.sms.sms_received";
     45 
     46   public static final String EXTRA_VOICEMAIL_SMS = "extra_voicemail_sms";
     47 
     48   private static final String IS_SHUTTING_DOWN = "com.android.voicemail.impl.is_shutting_down";
     49 
     50   @Override
     51   public void onCellServiceConnected(
     52       VisualVoicemailTask task, final PhoneAccountHandle phoneAccountHandle) {
     53     VvmLog.i(TAG, "onCellServiceConnected");
     54     if (!isModuleEnabled()) {
     55       VvmLog.e(TAG, "onCellServiceConnected received when module is disabled");
     56       task.finish();
     57       return;
     58     }
     59 
     60     if (!isUserUnlocked(this)) {
     61       VvmLog.i(TAG, "onCellServiceConnected: user locked");
     62       task.finish();
     63       return;
     64     }
     65 
     66     if (!isServiceEnabled(phoneAccountHandle)) {
     67       disableFilter(phoneAccountHandle);
     68       task.finish();
     69       return;
     70     }
     71 
     72     Logger.get(this).logImpression(DialerImpression.Type.VVM_UNBUNDLED_EVENT_RECEIVED);
     73     ActivationTask.start(OmtpService.this, phoneAccountHandle, null);
     74     task.finish();
     75   }
     76 
     77   @Override
     78   public void onSmsReceived(VisualVoicemailTask task, final VisualVoicemailSms sms) {
     79     VvmLog.i(TAG, "onSmsReceived");
     80     if (!isModuleEnabled()) {
     81       VvmLog.e(TAG, "onSmsReceived received when module is disabled");
     82       task.finish();
     83       return;
     84     }
     85 
     86     if (!isUserUnlocked(this)) {
     87       LegacyModeSmsHandler.handle(this, sms);
     88       return;
     89     }
     90 
     91     if (!isServiceEnabled(sms.getPhoneAccountHandle())) {
     92       VvmLog.e(TAG, "onSmsReceived received when service is disabled");
     93       disableFilter(sms.getPhoneAccountHandle());
     94       task.finish();
     95       return;
     96     }
     97 
     98     // isUserUnlocked() is not checked. OmtpMessageReceiver will handle the locked case.
     99 
    100     Logger.get(this).logImpression(DialerImpression.Type.VVM_UNBUNDLED_EVENT_RECEIVED);
    101     Intent intent = new Intent(ACTION_SMS_RECEIVED);
    102     intent.setPackage(getPackageName());
    103     intent.putExtra(EXTRA_VOICEMAIL_SMS, sms);
    104     sendBroadcast(intent);
    105     task.finish();
    106   }
    107 
    108   @Override
    109   public void onSimRemoved(
    110       final VisualVoicemailTask task, final PhoneAccountHandle phoneAccountHandle) {
    111     VvmLog.i(TAG, "onSimRemoved");
    112     if (!isModuleEnabled()) {
    113       VvmLog.e(TAG, "onSimRemoved called when module is disabled");
    114       task.finish();
    115       return;
    116     }
    117 
    118     if (!isUserUnlocked(this)) {
    119       VvmLog.i(TAG, "onSimRemoved: user locked");
    120       task.finish();
    121       return;
    122     }
    123 
    124     if (isShuttingDown(this)) {
    125       VvmLog.i(TAG, "onSimRemoved: system shutting down, ignoring");
    126       task.finish();
    127       return;
    128     }
    129 
    130     Logger.get(this).logImpression(DialerImpression.Type.VVM_UNBUNDLED_EVENT_RECEIVED);
    131     VvmAccountManager.removeAccount(this, phoneAccountHandle);
    132     task.finish();
    133   }
    134 
    135   @Override
    136   public void onStopped(VisualVoicemailTask task) {
    137     VvmLog.i(TAG, "onStopped");
    138     if (!isModuleEnabled()) {
    139       VvmLog.e(TAG, "onStopped called when module is disabled");
    140       task.finish();
    141       return;
    142     }
    143     if (!isUserUnlocked(this)) {
    144       VvmLog.i(TAG, "onStopped: user locked");
    145       task.finish();
    146       return;
    147     }
    148     Logger.get(this).logImpression(DialerImpression.Type.VVM_UNBUNDLED_EVENT_RECEIVED);
    149   }
    150 
    151   @MainThread
    152   static void onBoot(@NonNull Context context) {
    153     VvmLog.i(TAG, "onBoot");
    154     Assert.isTrue(isUserUnlocked(context));
    155     Assert.isMainThread();
    156     setShuttingDown(context, false);
    157   }
    158 
    159   @MainThread
    160   static void onShutdown(@NonNull Context context) {
    161     VvmLog.i(TAG, "onShutdown");
    162     Assert.isTrue(isUserUnlocked(context));
    163     Assert.isMainThread();
    164     setShuttingDown(context, true);
    165   }
    166 
    167   private boolean isModuleEnabled() {
    168     return VoicemailComponent.get(this).getVoicemailClient().isVoicemailModuleEnabled();
    169   }
    170 
    171   private boolean isServiceEnabled(PhoneAccountHandle phoneAccountHandle) {
    172     OmtpVvmCarrierConfigHelper config = new OmtpVvmCarrierConfigHelper(this, phoneAccountHandle);
    173     if (!config.isValid()) {
    174       VvmLog.i(TAG, "VVM not supported on " + phoneAccountHandle);
    175       return false;
    176     }
    177     if (!VisualVoicemailSettingsUtil.isEnabled(this, phoneAccountHandle)
    178         && !config.isLegacyModeEnabled()) {
    179       VvmLog.i(TAG, "VVM is disabled");
    180       return false;
    181     }
    182     return true;
    183   }
    184 
    185   private void disableFilter(PhoneAccountHandle phoneAccountHandle) {
    186     TelephonyManager telephonyManager =
    187         getSystemService(TelephonyManager.class).createForPhoneAccountHandle(phoneAccountHandle);
    188     if (telephonyManager != null) {
    189       VvmLog.i(TAG, "disabling SMS filter");
    190       telephonyManager.setVisualVoicemailSmsFilterSettings(null);
    191     }
    192   }
    193 
    194   private static boolean isUserUnlocked(@NonNull Context context) {
    195     UserManager userManager = context.getSystemService(UserManager.class);
    196     return userManager.isUserUnlocked();
    197   }
    198 
    199   private static void setShuttingDown(Context context, boolean value) {
    200     PreferenceManager.getDefaultSharedPreferences(context.getApplicationContext())
    201         .edit()
    202         .putBoolean(IS_SHUTTING_DOWN, value)
    203         .apply();
    204   }
    205 
    206   private static boolean isShuttingDown(Context context) {
    207     return PreferenceManager.getDefaultSharedPreferences(context.getApplicationContext())
    208         .getBoolean(IS_SHUTTING_DOWN, false);
    209   }
    210 }
    211