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.app.voicemail.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.contacts.common.compat.TelephonyManagerCompat;
28 import com.android.dialer.common.Assert;
29 import com.android.dialer.common.ConfigProviderBindings;
30 import com.android.dialer.common.LogUtil;
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 
maybeFixVoicemailStatus(Context context, Cursor statusCursor, Source source)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_STAIE="
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 (b/32371710). 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