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      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.net.Network;
     22 import android.os.Build.VERSION_CODES;
     23 import android.support.annotation.WorkerThread;
     24 import android.telecom.PhoneAccountHandle;
     25 import com.android.dialer.common.Assert;
     26 import com.android.voicemail.PinChanger;
     27 import com.android.voicemail.impl.imap.ImapHelper;
     28 import com.android.voicemail.impl.imap.ImapHelper.InitializingException;
     29 import com.android.voicemail.impl.mail.MessagingException;
     30 import com.android.voicemail.impl.sync.VvmNetworkRequest;
     31 import com.android.voicemail.impl.sync.VvmNetworkRequest.NetworkWrapper;
     32 import com.android.voicemail.impl.sync.VvmNetworkRequest.RequestFailedException;
     33 
     34 @TargetApi(VERSION_CODES.O)
     35 class PinChangerImpl implements PinChanger {
     36 
     37   private final Context context;
     38   private final PhoneAccountHandle phoneAccountHandle;
     39 
     40   private static final String KEY_SCRAMBLED_PIN = "default_old_pin"; // legacy name, DO NOT CHANGE
     41 
     42   PinChangerImpl(Context context, PhoneAccountHandle phoneAccountHandle) {
     43     this.context = context;
     44     this.phoneAccountHandle = phoneAccountHandle;
     45   }
     46 
     47   @WorkerThread
     48   @Override
     49   @ChangePinResult
     50   public int changePin(String oldPin, String newPin) {
     51     Assert.isWorkerThread();
     52     OmtpVvmCarrierConfigHelper config = new OmtpVvmCarrierConfigHelper(context, phoneAccountHandle);
     53     VoicemailStatus.Editor status = VoicemailStatus.edit(context, phoneAccountHandle);
     54     try (NetworkWrapper networkWrapper =
     55         VvmNetworkRequest.getNetwork(config, phoneAccountHandle, status)) {
     56       Network network = networkWrapper.get();
     57       try (ImapHelper helper = new ImapHelper(context, phoneAccountHandle, network, status)) {
     58         return helper.changePin(oldPin, newPin);
     59       } catch (InitializingException | MessagingException e) {
     60         VvmLog.e(
     61             "VoicemailClientImpl.changePin", "ChangePinNetworkRequestCallback: onAvailable: " + e);
     62         return PinChanger.CHANGE_PIN_SYSTEM_ERROR;
     63       }
     64 
     65     } catch (RequestFailedException e) {
     66       return PinChanger.CHANGE_PIN_SYSTEM_ERROR;
     67     }
     68   }
     69 
     70   @Override
     71   public void setScrambledPin(String pin) {
     72     new VisualVoicemailPreferences(context, phoneAccountHandle)
     73         .edit()
     74         .putString(KEY_SCRAMBLED_PIN, pin)
     75         .apply();
     76     if (pin == null) {
     77       new OmtpVvmCarrierConfigHelper(context, phoneAccountHandle)
     78           .handleEvent(
     79               VoicemailStatus.edit(context, phoneAccountHandle), OmtpEvents.CONFIG_PIN_SET);
     80     }
     81   }
     82 
     83   @Override
     84   public String getScrambledPin() {
     85     return new VisualVoicemailPreferences(context, phoneAccountHandle).getString(KEY_SCRAMBLED_PIN);
     86   }
     87 
     88   @Override
     89   public PinSpecification getPinSpecification() {
     90     PinSpecification result = new PinSpecification();
     91     VisualVoicemailPreferences preferences =
     92         new VisualVoicemailPreferences(context, phoneAccountHandle);
     93     // The OMTP pin length format is {min}-{max}
     94     String[] lengths = preferences.getString(OmtpConstants.TUI_PASSWORD_LENGTH, "").split("-");
     95     if (lengths.length == 2) {
     96       try {
     97         result.minLength = Integer.parseInt(lengths[0]);
     98         result.maxLength = Integer.parseInt(lengths[1]);
     99       } catch (NumberFormatException e) {
    100         // do nothing, return default value;
    101       }
    102     }
    103     return result;
    104   }
    105 }
    106