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      1 /*
      2  * Copyright (C) 2016 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.dialer.voicemail.listui.error;
     18 
     19 import android.content.ComponentName;
     20 import android.content.Context;
     21 import android.database.Cursor;
     22 import android.os.Build.VERSION;
     23 import android.os.Build.VERSION_CODES;
     24 import android.provider.VoicemailContract.Status;
     25 import android.telecom.PhoneAccountHandle;
     26 import android.telephony.TelephonyManager;
     27 import com.android.dialer.common.Assert;
     28 import com.android.dialer.common.LogUtil;
     29 import com.android.dialer.compat.telephony.TelephonyManagerCompat;
     30 import com.android.dialer.configprovider.ConfigProviderBindings;
     31 import com.android.dialer.logging.DialerImpression;
     32 import com.android.dialer.logging.Logger;
     33 
     34 /**
     35  * This class will detect the corruption in the voicemail status and log it so we can track how many
     36  * users are affected.
     37  */
     38 public class VoicemailStatusCorruptionHandler {
     39 
     40   /** Where the check is made so logging can be done. */
     41   public enum Source {
     42     Activity,
     43     Notification
     44   }
     45 
     46   private static final String CONFIG_VVM_STATUS_FIX_DISABLED = "vvm_status_fix_disabled";
     47 
     48   public static void maybeFixVoicemailStatus(Context context, Cursor statusCursor, Source source) {
     49 
     50     if (ConfigProviderBindings.get(context).getBoolean(CONFIG_VVM_STATUS_FIX_DISABLED, false)) {
     51       return;
     52     }
     53 
     54     if (VERSION.SDK_INT != VERSION_CODES.N_MR1) {
     55       // This issue is specific to N MR1, it is fixed in future SDK.
     56       return;
     57     }
     58 
     59     if (statusCursor.getCount() == 0) {
     60       return;
     61     }
     62 
     63     statusCursor.moveToFirst();
     64     VoicemailStatus status = new VoicemailStatus(context, statusCursor);
     65     PhoneAccountHandle phoneAccountHandle =
     66         new PhoneAccountHandle(
     67             ComponentName.unflattenFromString(status.phoneAccountComponentName),
     68             status.phoneAccountId);
     69 
     70     TelephonyManager telephonyManager = context.getSystemService(TelephonyManager.class);
     71 
     72     boolean visualVoicemailEnabled =
     73         TelephonyManagerCompat.isVisualVoicemailEnabled(telephonyManager, phoneAccountHandle);
     74     LogUtil.i(
     75         "VoicemailStatusCorruptionHandler.maybeFixVoicemailStatus",
     76         "Source="
     77             + source
     78             + ", CONFIGURATION_STATE="
     79             + status.configurationState
     80             + ", visualVoicemailEnabled="
     81             + visualVoicemailEnabled);
     82 
     83     // If visual voicemail is enabled, the CONFIGURATION_STATE should be either OK, PIN_NOT_SET,
     84     // or other failure code. CONFIGURATION_STATE_NOT_CONFIGURED means that the client has been
     85     // shut down improperly (a bug). The client should be reset or the VVM tab will be
     86     // missing.
     87     if (Status.CONFIGURATION_STATE_NOT_CONFIGURED == status.configurationState
     88         && visualVoicemailEnabled) {
     89       LogUtil.e(
     90           "VoicemailStatusCorruptionHandler.maybeFixVoicemailStatus",
     91           "VVM3 voicemail status corrupted");
     92 
     93       switch (source) {
     94         case Activity:
     95           Logger.get(context)
     96               .logImpression(
     97                   DialerImpression.Type
     98                       .VOICEMAIL_CONFIGURATION_STATE_CORRUPTION_DETECTED_FROM_ACTIVITY);
     99           break;
    100         case Notification:
    101           Logger.get(context)
    102               .logImpression(
    103                   DialerImpression.Type
    104                       .VOICEMAIL_CONFIGURATION_STATE_CORRUPTION_DETECTED_FROM_NOTIFICATION);
    105           break;
    106         default:
    107           Assert.fail("this should never happen");
    108           break;
    109       }
    110       // At this point we could attempt to work around the issue by disabling and re-enabling
    111       // voicemail. Unfortunately this work around is buggy so we'll do nothing for now.
    112     }
    113   }
    114 }
    115