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/*
* Copyright (C) 2015 The CyanogenMod 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.util;
import android.content.ContentResolver;
import android.database.ContentObserver;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.os.Handler;
import android.util.Log;
import com.android.messaging.datamodel.BugleDatabaseOperations;
import com.android.messaging.datamodel.DataModel;
import com.android.messaging.datamodel.DatabaseWrapper;
import com.android.messaging.datamodel.MessagingContentProvider;
import com.android.messaging.datamodel.action.UpdateConversationArchiveStatusAction;
import com.android.messaging.datamodel.data.ParticipantData;
// ContentObserver class to monitor changes to the Framework Blacklist DB
public class BlacklistObserver extends ContentObserver {
private static final String TAG = BlacklistObserver.class.getSimpleName();
private final Context mContext;
private ContentResolver mResolver;
public BlacklistObserver(Handler handler, Context context) {
super(handler);
mResolver = context.getContentResolver();
mContext = context;
}
@Override
public void onChange(boolean selfChange, final Uri uri) {
// depending on the Thread in which the handler was created, this function
// may or may not run on the UI thread, to be sure that it doesn't, launch
// it via AsyncTask
SafeAsyncTask.executeOnThreadPool(new Runnable() {
@Override
public void run() {
if (LogUtil.isLoggable(TAG, LogUtil.VERBOSE)) {
Log.i(TAG, "BlacklistObserver: onChange: Uri:" + uri.toString());
}
boolean requiresNotifyAllParticipants = false;
// we need to find the phone number being blacklisted and add/update it
// in the bugle database
Cursor cursor = null;
try {
cursor = mResolver.query(uri, null, null, null, null);
DatabaseWrapper db = DataModel.get().getDatabase();
// Row was deleted
if (cursor.getCount() == 0) {
if (!uri.getPath().contains("bynumber")) {
// We don't have enough information, lets run a full sync
BlacklistSync blacklistSync = new BlacklistSync(mContext);
blacklistSync.execute();
} else {
// We have the number that was deleted, lets update it locally
String number = uri.getLastPathSegment();
BugleDatabaseOperations.updateDestination(db, number,
false, false);
String conversationId = updateArchiveStatusForConversation(false, number, db);
if (conversationId == null) {
requiresNotifyAllParticipants = true;
} else {
MessagingContentProvider.notifyParticipantsChanged(conversationId);
}
}
return;
}
int normalizedNumberIndex = cursor.getColumnIndex("normalized_number");
int blockedIndex = cursor.getColumnIndex("message");
int nonNormalizedNumberIndex = cursor.getColumnIndex("number");
int regexIndex = cursor.getColumnIndex("is_regex");
// if the column indices are not valid, don't perform the queries
if (normalizedNumberIndex < 0 || blockedIndex < 0) {
return;
}
while(cursor.moveToNext()) {
String number = cursor.getString(normalizedNumberIndex);
String blocked = cursor.getString(blockedIndex);
boolean isBlocked = blocked.compareTo("1") == 0;
String formattedNumber = cursor.getInt(regexIndex) != 0
? cursor.getString(nonNormalizedNumberIndex) : null;
// don't update the framework db - the 'false' argument
int updateCount = BugleDatabaseOperations.updateDestination(db, number,
isBlocked, false);
if (updateCount == 0) {
// there was no phone number in the local participants database that was
// blacklisted in the framework blacklist database,
// create a new participant
// and insert him into the local participants database
ParticipantData participant =
ParticipantData.getFromRawPhoneBySystemLocale(number, formattedNumber);
BugleDatabaseOperations.getOrCreateParticipantInTransaction(db,
participant);
BugleDatabaseOperations.updateDestination(db, number,
isBlocked, false);
}
String conversationId = updateArchiveStatusForConversation(isBlocked, number, db);
if (!requiresNotifyAllParticipants && conversationId != null) {
MessagingContentProvider.notifyParticipantsChanged(conversationId);
} else {
requiresNotifyAllParticipants = true;
}
}
} catch (Exception e) {
Log.e(TAG, "BlacklistObserver: onChange: " + e.getMessage());
} finally {
if (cursor != null) {
cursor.close();
}
if (requiresNotifyAllParticipants) {
MessagingContentProvider.notifyAllParticipantsChanged();
}
}
}
});
}
private String updateArchiveStatusForConversation(boolean isBlocked, String number, DatabaseWrapper db) {
String conversationId = BugleDatabaseOperations
.getConversationFromOtherParticipantDestination(db, number);
if (conversationId != null) {
if (isBlocked) {
UpdateConversationArchiveStatusAction
.archiveConversation(conversationId);
} else {
UpdateConversationArchiveStatusAction
.unarchiveConversation(conversationId);
}
}
return conversationId;
}
}
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