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/*
* Copyright (C) 2017 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License
*/
package com.android.voicemail.impl;
import android.content.Context;
import android.os.Bundle;
import android.support.annotation.WorkerThread;
import android.telecom.PhoneAccountHandle;
import android.telephony.TelephonyManager;
import android.text.TextUtils;
import com.android.voicemail.impl.settings.VisualVoicemailSettingsUtil;
import com.android.voicemail.impl.settings.VoicemailChangePinActivity;
import java.lang.reflect.Method;
/** Handles migration of data from the visual voicemail client in telephony before O. */
public final class PreOMigrationHandler {
// Hidden system APIs to access pre O VVM data
// Bundle getVisualVoicemailSettings()
private static final String METHOD_GET_VISUAL_VOICEMAIL_SETTINGS = "getVisualVoicemailSettings";
/**
* Key in bundle returned by {@link #METHOD_GET_VISUAL_VOICEMAIL_SETTINGS}, indicating whether
* visual voicemail was enabled or disabled by the user. If the user never explicitly changed this
* setting, this key will not exist.
*/
private static final String EXTRA_VISUAL_VOICEMAIL_ENABLED_BY_USER_BOOL =
"android.telephony.extra.VISUAL_VOICEMAIL_ENABLED_BY_USER_BOOL";
/**
* Key in bundle returned by {@link #METHOD_GET_VISUAL_VOICEMAIL_SETTINGS}, indicating the
* voicemail access PIN scrambled during the auto provisioning process. The user is expected to
* reset their PIN if this value is not {@code null}.
*/
private static final String EXTRA_VOICEMAIL_SCRAMBLED_PIN_STRING =
"android.telephony.extra.VOICEMAIL_SCRAMBLED_PIN_STRING";
private static final String PRE_O_MIGRATION_FINISHED = "pre_o_migration_finished";
@WorkerThread
public static void migrate(Context context, PhoneAccountHandle phoneAccountHandle) {
Assert.isNotMainThread();
VisualVoicemailPreferences preferences =
new VisualVoicemailPreferences(context, phoneAccountHandle);
if (preferences.getBoolean(PRE_O_MIGRATION_FINISHED, false)) {
VvmLog.i("PreOMigrationHandler", phoneAccountHandle + " already migrated");
return;
}
VvmLog.i("PreOMigrationHandler", "migrating " + phoneAccountHandle);
migrateSettings(context, phoneAccountHandle);
preferences.edit().putBoolean(PRE_O_MIGRATION_FINISHED, true).apply();
}
private static void migrateSettings(Context context, PhoneAccountHandle phoneAccountHandle) {
VvmLog.i("PreOMigrationHandler.migrateSettings", "migrating settings");
TelephonyManager telephonyManager =
context
.getSystemService(TelephonyManager.class)
.createForPhoneAccountHandle(phoneAccountHandle);
if (telephonyManager == null) {
VvmLog.e("PreOMigrationHandler.migrateSettings", "invalid PhoneAccountHandle");
return;
}
Bundle legacySettings;
try {
Method method = TelephonyManager.class.getMethod(METHOD_GET_VISUAL_VOICEMAIL_SETTINGS);
legacySettings = (Bundle) method.invoke(telephonyManager);
} catch (ReflectiveOperationException | ClassCastException e) {
VvmLog.i("PreOMigrationHandler.migrateSettings", "unable to retrieve settings from system");
return;
}
if (legacySettings.containsKey(EXTRA_VISUAL_VOICEMAIL_ENABLED_BY_USER_BOOL)) {
boolean enabled = legacySettings.getBoolean(EXTRA_VISUAL_VOICEMAIL_ENABLED_BY_USER_BOOL);
VvmLog.i("PreOMigrationHandler.migrateSettings", "setting VVM enabled to " + enabled);
VisualVoicemailSettingsUtil.setEnabled(context, phoneAccountHandle, enabled);
}
if (legacySettings.containsKey(EXTRA_VOICEMAIL_SCRAMBLED_PIN_STRING)) {
String scrambledPin = legacySettings.getString(EXTRA_VOICEMAIL_SCRAMBLED_PIN_STRING);
if (!TextUtils.isEmpty(scrambledPin)) {
VvmLog.i("PreOMigrationHandler.migrateSettings", "migrating scrambled PIN");
VoicemailChangePinActivity.setDefaultOldPIN(context, phoneAccountHandle, scrambledPin);
}
}
}
}
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