| /* |
| * Copyright (C) 2015 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.messaging.datamodel.action; |
| |
| import android.database.Cursor; |
| import android.net.Uri; |
| import android.os.Bundle; |
| import android.os.Parcel; |
| import android.os.Parcelable; |
| import android.text.TextUtils; |
| |
| import com.android.messaging.Factory; |
| import com.android.messaging.datamodel.BugleDatabaseOperations; |
| import com.android.messaging.datamodel.BugleNotifications; |
| import com.android.messaging.datamodel.DataModel; |
| import com.android.messaging.datamodel.DataModelException; |
| import com.android.messaging.datamodel.DatabaseHelper; |
| import com.android.messaging.datamodel.DatabaseHelper.MessageColumns; |
| import com.android.messaging.datamodel.DatabaseWrapper; |
| import com.android.messaging.datamodel.MessagingContentProvider; |
| import com.android.messaging.sms.MmsUtils; |
| import com.android.messaging.util.Assert; |
| import com.android.messaging.util.LogUtil; |
| import com.android.messaging.widget.WidgetConversationProvider; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * Action used to delete a conversation. |
| */ |
| public class DeleteConversationAction extends Action implements Parcelable { |
| private static final String TAG = LogUtil.BUGLE_DATAMODEL_TAG; |
| |
| public static void deleteConversation(final String conversationId, final long cutoffTimestamp) { |
| final DeleteConversationAction action = new DeleteConversationAction(conversationId, |
| cutoffTimestamp); |
| action.start(); |
| } |
| |
| private static final String KEY_CONVERSATION_ID = "conversation_id"; |
| private static final String KEY_CUTOFF_TIMESTAMP = "cutoff_timestamp"; |
| |
| private DeleteConversationAction(final String conversationId, final long cutoffTimestamp) { |
| super(); |
| actionParameters.putString(KEY_CONVERSATION_ID, conversationId); |
| // TODO: Should we set cuttoff timestamp to prevent us deleting new messages? |
| actionParameters.putLong(KEY_CUTOFF_TIMESTAMP, cutoffTimestamp); |
| } |
| |
| // Delete conversation from both the local DB and telephony in the background so sync cannot |
| // run concurrently and incorrectly try to recreate the conversation's messages locally. The |
| // telephony database can sometimes be quite slow to delete conversations, so we delete from |
| // the local DB first, notify the UI, and then delete from telephony. |
| @Override |
| protected Bundle doBackgroundWork() throws DataModelException { |
| final DatabaseWrapper db = DataModel.get().getDatabase(); |
| |
| final String conversationId = actionParameters.getString(KEY_CONVERSATION_ID); |
| final long cutoffTimestamp = actionParameters.getLong(KEY_CUTOFF_TIMESTAMP); |
| |
| if (!TextUtils.isEmpty(conversationId)) { |
| // First find the thread id for this conversation. |
| final long threadId = BugleDatabaseOperations.getThreadId(db, conversationId); |
| |
| if (BugleDatabaseOperations.deleteConversation(db, conversationId, cutoffTimestamp)) { |
| LogUtil.i(TAG, "DeleteConversationAction: Deleted local conversation " |
| + conversationId); |
| |
| BugleActionToasts.onConversationDeleted(); |
| |
| // Remove notifications if necessary |
| BugleNotifications.update(true /* silent */, null /* conversationId */, |
| BugleNotifications.UPDATE_MESSAGES); |
| |
| // We have changed the conversation list |
| MessagingContentProvider.notifyConversationListChanged(); |
| |
| // Notify the widget the conversation is deleted so it can go into its configure state. |
| WidgetConversationProvider.notifyConversationDeleted( |
| Factory.get().getApplicationContext(), |
| conversationId); |
| } else { |
| LogUtil.w(TAG, "DeleteConversationAction: Could not delete local conversation " |
| + conversationId); |
| return null; |
| } |
| |
| // Now delete from telephony DB. MmsSmsProvider throws an exception if the thread id is |
| // less than 0. If it's greater than zero, it will delete all messages with that thread |
| // id, even if there's no corresponding row in the threads table. |
| if (threadId >= 0) { |
| final int count = MmsUtils.deleteThread(threadId, cutoffTimestamp); |
| if (count > 0) { |
| LogUtil.i(TAG, "DeleteConversationAction: Deleted telephony thread " |
| + threadId + " (cutoffTimestamp = " + cutoffTimestamp + ")"); |
| } else { |
| LogUtil.w(TAG, "DeleteConversationAction: Could not delete thread from " |
| + "telephony: conversationId = " + conversationId + ", thread id = " |
| + threadId); |
| } |
| } else { |
| LogUtil.w(TAG, "DeleteConversationAction: Local conversation " + conversationId |
| + " has an invalid telephony thread id; will delete messages individually"); |
| deleteConversationMessagesFromTelephony(); |
| } |
| } else { |
| LogUtil.e(TAG, "DeleteConversationAction: conversationId is empty"); |
| } |
| |
| return null; |
| } |
| |
| /** |
| * Deletes all the telephony messages for the local conversation being deleted. |
| * <p> |
| * This is a fallback used when the conversation is not associated with any telephony thread, |
| * or its thread id is invalid (e.g. negative). This is not common, but can happen sometimes |
| * (e.g. the Unknown Sender conversation). In the usual case of deleting a conversation, we |
| * don't need this because the telephony provider automatically deletes messages when a thread |
| * is deleted. |
| */ |
| private void deleteConversationMessagesFromTelephony() { |
| final DatabaseWrapper db = DataModel.get().getDatabase(); |
| final String conversationId = actionParameters.getString(KEY_CONVERSATION_ID); |
| Assert.notNull(conversationId); |
| |
| final List<Uri> messageUris = new ArrayList<>(); |
| Cursor cursor = null; |
| try { |
| cursor = db.query(DatabaseHelper.MESSAGES_TABLE, |
| new String[] { MessageColumns.SMS_MESSAGE_URI }, |
| MessageColumns.CONVERSATION_ID + "=?", |
| new String[] { conversationId }, |
| null, null, null); |
| while (cursor.moveToNext()) { |
| String messageUri = cursor.getString(0); |
| try { |
| messageUris.add(Uri.parse(messageUri)); |
| } catch (Exception e) { |
| LogUtil.e(TAG, "DeleteConversationAction: Could not parse message uri " |
| + messageUri); |
| } |
| } |
| } finally { |
| if (cursor != null) { |
| cursor.close(); |
| } |
| } |
| for (Uri messageUri : messageUris) { |
| int count = MmsUtils.deleteMessage(messageUri); |
| if (count > 0) { |
| if (LogUtil.isLoggable(TAG, LogUtil.DEBUG)) { |
| LogUtil.d(TAG, "DeleteConversationAction: Deleted telephony message " |
| + messageUri); |
| } |
| } else { |
| LogUtil.w(TAG, "DeleteConversationAction: Could not delete telephony message " |
| + messageUri); |
| } |
| } |
| } |
| |
| @Override |
| protected Object executeAction() { |
| requestBackgroundWork(); |
| return null; |
| } |
| |
| private DeleteConversationAction(final Parcel in) { |
| super(in); |
| } |
| |
| public static final Parcelable.Creator<DeleteConversationAction> CREATOR |
| = new Parcelable.Creator<DeleteConversationAction>() { |
| @Override |
| public DeleteConversationAction createFromParcel(final Parcel in) { |
| return new DeleteConversationAction(in); |
| } |
| |
| @Override |
| public DeleteConversationAction[] newArray(final int size) { |
| return new DeleteConversationAction[size]; |
| } |
| }; |
| |
| @Override |
| public void writeToParcel(final Parcel parcel, final int flags) { |
| writeActionToParcel(parcel, flags); |
| } |
| } |