1 files changed, 102 insertions, 0 deletions
diff --git a/java/com/android/voicemail/impl/PreOMigrationHandler.java b/java/com/android/voicemail/impl/PreOMigrationHandler.java
new file mode 100644
index 000000000..6dc2dee90
--- /dev/null
+++ b/java/com/android/voicemail/impl/PreOMigrationHandler.java
@@ -0,0 +1,102 @@
+/*
+ * 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);
+      }
+    }
+  }
+}