1package eu.siacs.conversations.services;
   2
   3import android.annotation.SuppressLint;
   4import android.annotation.TargetApi;
   5import android.app.AlarmManager;
   6import android.app.PendingIntent;
   7import android.app.Service;
   8import android.content.Context;
   9import android.content.Intent;
  10import android.content.IntentFilter;
  11import android.content.SharedPreferences;
  12import android.database.ContentObserver;
  13import android.graphics.Bitmap;
  14import android.media.AudioManager;
  15import android.net.ConnectivityManager;
  16import android.net.NetworkInfo;
  17import android.net.Uri;
  18import android.os.Binder;
  19import android.os.Build;
  20import android.os.Bundle;
  21import android.os.Environment;
  22import android.os.IBinder;
  23import android.os.PowerManager;
  24import android.os.PowerManager.WakeLock;
  25import android.os.SystemClock;
  26import android.preference.PreferenceManager;
  27import android.provider.ContactsContract;
  28import android.security.KeyChain;
  29import android.support.annotation.BoolRes;
  30import android.support.annotation.IntegerRes;
  31import android.support.v4.app.RemoteInput;
  32import android.util.DisplayMetrics;
  33import android.util.Log;
  34import android.util.LruCache;
  35import android.util.Pair;
  36
  37import net.java.otr4j.OtrException;
  38import net.java.otr4j.session.Session;
  39import net.java.otr4j.session.SessionID;
  40import net.java.otr4j.session.SessionImpl;
  41import net.java.otr4j.session.SessionStatus;
  42
  43import org.openintents.openpgp.IOpenPgpService2;
  44import org.openintents.openpgp.util.OpenPgpApi;
  45import org.openintents.openpgp.util.OpenPgpServiceConnection;
  46
  47import java.math.BigInteger;
  48import java.net.URL;
  49import java.security.SecureRandom;
  50import java.security.cert.CertificateException;
  51import java.security.cert.X509Certificate;
  52import java.util.ArrayList;
  53import java.util.Arrays;
  54import java.util.Collection;
  55import java.util.Collections;
  56import java.util.HashMap;
  57import java.util.HashSet;
  58import java.util.Hashtable;
  59import java.util.Iterator;
  60import java.util.List;
  61import java.util.ListIterator;
  62import java.util.Locale;
  63import java.util.Map;
  64import java.util.concurrent.CopyOnWriteArrayList;
  65import java.util.concurrent.atomic.AtomicBoolean;
  66import java.util.concurrent.atomic.AtomicLong;
  67
  68import de.duenndns.ssl.MemorizingTrustManager;
  69import eu.siacs.conversations.Config;
  70import eu.siacs.conversations.R;
  71import eu.siacs.conversations.crypto.PgpDecryptionService;
  72import eu.siacs.conversations.crypto.PgpEngine;
  73import eu.siacs.conversations.crypto.axolotl.AxolotlService;
  74import eu.siacs.conversations.crypto.axolotl.FingerprintStatus;
  75import eu.siacs.conversations.crypto.axolotl.XmppAxolotlMessage;
  76import eu.siacs.conversations.entities.Account;
  77import eu.siacs.conversations.entities.Blockable;
  78import eu.siacs.conversations.entities.Bookmark;
  79import eu.siacs.conversations.entities.Contact;
  80import eu.siacs.conversations.entities.Conversation;
  81import eu.siacs.conversations.entities.DownloadableFile;
  82import eu.siacs.conversations.entities.Message;
  83import eu.siacs.conversations.entities.MucOptions;
  84import eu.siacs.conversations.entities.MucOptions.OnRenameListener;
  85import eu.siacs.conversations.entities.Presence;
  86import eu.siacs.conversations.entities.PresenceTemplate;
  87import eu.siacs.conversations.entities.Roster;
  88import eu.siacs.conversations.entities.ServiceDiscoveryResult;
  89import eu.siacs.conversations.entities.Transferable;
  90import eu.siacs.conversations.entities.TransferablePlaceholder;
  91import eu.siacs.conversations.generator.AbstractGenerator;
  92import eu.siacs.conversations.generator.IqGenerator;
  93import eu.siacs.conversations.generator.MessageGenerator;
  94import eu.siacs.conversations.generator.PresenceGenerator;
  95import eu.siacs.conversations.http.HttpConnectionManager;
  96import eu.siacs.conversations.http.AesGcmURLStreamHandlerFactory;
  97import eu.siacs.conversations.parser.AbstractParser;
  98import eu.siacs.conversations.parser.IqParser;
  99import eu.siacs.conversations.parser.MessageParser;
 100import eu.siacs.conversations.parser.PresenceParser;
 101import eu.siacs.conversations.persistance.DatabaseBackend;
 102import eu.siacs.conversations.persistance.FileBackend;
 103import eu.siacs.conversations.ui.SettingsActivity;
 104import eu.siacs.conversations.ui.UiCallback;
 105import eu.siacs.conversations.utils.ConversationsFileObserver;
 106import eu.siacs.conversations.utils.CryptoHelper;
 107import eu.siacs.conversations.utils.ExceptionHelper;
 108import eu.siacs.conversations.utils.MimeUtils;
 109import eu.siacs.conversations.utils.OnPhoneContactsLoadedListener;
 110import eu.siacs.conversations.utils.PRNGFixes;
 111import eu.siacs.conversations.utils.PhoneHelper;
 112import eu.siacs.conversations.utils.ReplacingSerialSingleThreadExecutor;
 113import eu.siacs.conversations.utils.Resolver;
 114import eu.siacs.conversations.utils.SerialSingleThreadExecutor;
 115import eu.siacs.conversations.xml.Namespace;
 116import eu.siacs.conversations.utils.XmppUri;
 117import eu.siacs.conversations.xml.Element;
 118import eu.siacs.conversations.xmpp.OnBindListener;
 119import eu.siacs.conversations.xmpp.OnContactStatusChanged;
 120import eu.siacs.conversations.xmpp.OnIqPacketReceived;
 121import eu.siacs.conversations.xmpp.OnKeyStatusUpdated;
 122import eu.siacs.conversations.xmpp.OnMessageAcknowledged;
 123import eu.siacs.conversations.xmpp.OnMessagePacketReceived;
 124import eu.siacs.conversations.xmpp.OnPresencePacketReceived;
 125import eu.siacs.conversations.xmpp.OnStatusChanged;
 126import eu.siacs.conversations.xmpp.OnUpdateBlocklist;
 127import eu.siacs.conversations.xmpp.Patches;
 128import eu.siacs.conversations.xmpp.XmppConnection;
 129import eu.siacs.conversations.xmpp.chatstate.ChatState;
 130import eu.siacs.conversations.xmpp.forms.Data;
 131import eu.siacs.conversations.xmpp.jid.InvalidJidException;
 132import eu.siacs.conversations.xmpp.jid.Jid;
 133import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
 134import eu.siacs.conversations.xmpp.jingle.OnJinglePacketReceived;
 135import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
 136import eu.siacs.conversations.xmpp.mam.MamReference;
 137import eu.siacs.conversations.xmpp.pep.Avatar;
 138import eu.siacs.conversations.xmpp.stanzas.IqPacket;
 139import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
 140import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
 141import me.leolin.shortcutbadger.ShortcutBadger;
 142
 143public class XmppConnectionService extends Service {
 144
 145	static {
 146		URL.setURLStreamHandlerFactory(new AesGcmURLStreamHandlerFactory());
 147	}
 148
 149	public static final String ACTION_REPLY_TO_CONVERSATION = "reply_to_conversations";
 150	public static final String ACTION_MARK_AS_READ = "mark_as_read";
 151	public static final String ACTION_CLEAR_NOTIFICATION = "clear_notification";
 152	public static final String ACTION_DISMISS_ERROR_NOTIFICATIONS = "dismiss_error";
 153	public static final String ACTION_TRY_AGAIN = "try_again";
 154	public static final String ACTION_IDLE_PING = "idle_ping";
 155	private static final String ACTION_MERGE_PHONE_CONTACTS = "merge_phone_contacts";
 156	public static final String ACTION_GCM_TOKEN_REFRESH = "gcm_token_refresh";
 157	public static final String ACTION_GCM_MESSAGE_RECEIVED = "gcm_message_received";
 158	private final SerialSingleThreadExecutor mFileAddingExecutor = new SerialSingleThreadExecutor();
 159	private final SerialSingleThreadExecutor mVideoCompressionExecutor = new SerialSingleThreadExecutor();
 160	private final SerialSingleThreadExecutor mDatabaseExecutor = new SerialSingleThreadExecutor();
 161	private ReplacingSerialSingleThreadExecutor mContactMergerExecutor = new ReplacingSerialSingleThreadExecutor(true);
 162	private final IBinder mBinder = new XmppConnectionBinder();
 163	private final List<Conversation> conversations = new CopyOnWriteArrayList<>();
 164	private final IqGenerator mIqGenerator = new IqGenerator(this);
 165	private final List<String> mInProgressAvatarFetches = new ArrayList<>();
 166	private final HashSet<Jid> mLowPingTimeoutMode = new HashSet<>();
 167
 168	private long mLastActivity = 0;
 169
 170	public DatabaseBackend databaseBackend;
 171	private ContentObserver contactObserver = new ContentObserver(null) {
 172		@Override
 173		public void onChange(boolean selfChange) {
 174			super.onChange(selfChange);
 175			Intent intent = new Intent(getApplicationContext(),
 176					XmppConnectionService.class);
 177			intent.setAction(ACTION_MERGE_PHONE_CONTACTS);
 178			startService(intent);
 179		}
 180	};
 181	private FileBackend fileBackend = new FileBackend(this);
 182	private MemorizingTrustManager mMemorizingTrustManager;
 183	private NotificationService mNotificationService = new NotificationService(this);
 184	private ShortcutService mShortcutService = new ShortcutService(this);
 185	private AtomicBoolean mInitialAddressbookSyncCompleted = new AtomicBoolean(false);
 186	private AtomicBoolean mForceForegroundService = new AtomicBoolean(false);
 187	private OnMessagePacketReceived mMessageParser = new MessageParser(this);
 188	private OnPresencePacketReceived mPresenceParser = new PresenceParser(this);
 189	private IqParser mIqParser = new IqParser(this);
 190	private OnIqPacketReceived mDefaultIqHandler = new OnIqPacketReceived() {
 191		@Override
 192		public void onIqPacketReceived(Account account, IqPacket packet) {
 193			if (packet.getType() != IqPacket.TYPE.RESULT) {
 194				Element error = packet.findChild("error");
 195				String text = error != null ? error.findChildContent("text") : null;
 196				if (text != null) {
 197					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": received iq error - " + text);
 198				}
 199			}
 200		}
 201	};
 202	private MessageGenerator mMessageGenerator = new MessageGenerator(this);
 203	private PresenceGenerator mPresenceGenerator = new PresenceGenerator(this);
 204	private List<Account> accounts;
 205	private JingleConnectionManager mJingleConnectionManager = new JingleConnectionManager(
 206			this);
 207	public OnContactStatusChanged onContactStatusChanged = new OnContactStatusChanged() {
 208
 209		@Override
 210		public void onContactStatusChanged(Contact contact, boolean online) {
 211			Conversation conversation = find(getConversations(), contact);
 212			if (conversation != null) {
 213				if (online) {
 214					conversation.endOtrIfNeeded();
 215					if (contact.getPresences().size() == 1) {
 216						sendUnsentMessages(conversation);
 217					}
 218				} else {
 219					//check if the resource we are haveing a conversation with is still online
 220					if (conversation.hasValidOtrSession()) {
 221						String otrResource = conversation.getOtrSession().getSessionID().getUserID();
 222						if (!(Arrays.asList(contact.getPresences().toResourceArray()).contains(otrResource))) {
 223							conversation.endOtrIfNeeded();
 224						}
 225					}
 226				}
 227			}
 228		}
 229	};
 230	private HttpConnectionManager mHttpConnectionManager = new HttpConnectionManager(
 231			this);
 232	private AvatarService mAvatarService = new AvatarService(this);
 233	private MessageArchiveService mMessageArchiveService = new MessageArchiveService(this);
 234	private PushManagementService mPushManagementService = new PushManagementService(this);
 235	private OnConversationUpdate mOnConversationUpdate = null;
 236
 237
 238	private final ConversationsFileObserver fileObserver = new ConversationsFileObserver(
 239			Environment.getExternalStorageDirectory().getAbsolutePath()
 240	) {
 241		@Override
 242		public void onEvent(int event, String path) {
 243			markFileDeleted(path);
 244		}
 245	};
 246	private final OnJinglePacketReceived jingleListener = new OnJinglePacketReceived() {
 247
 248		@Override
 249		public void onJinglePacketReceived(Account account, JinglePacket packet) {
 250			mJingleConnectionManager.deliverPacket(account, packet);
 251		}
 252	};
 253	private final OnMessageAcknowledged mOnMessageAcknowledgedListener = new OnMessageAcknowledged() {
 254
 255		@Override
 256		public void onMessageAcknowledged(Account account, String uuid) {
 257			for (final Conversation conversation : getConversations()) {
 258				if (conversation.getAccount() == account) {
 259					Message message = conversation.findUnsentMessageWithUuid(uuid);
 260					if (message != null) {
 261						markMessage(message, Message.STATUS_SEND);
 262					}
 263				}
 264			}
 265		}
 266	};
 267	private int convChangedListenerCount = 0;
 268	private OnShowErrorToast mOnShowErrorToast = null;
 269	private int showErrorToastListenerCount = 0;
 270	private int unreadCount = -1;
 271	private OnAccountUpdate mOnAccountUpdate = null;
 272	private OnCaptchaRequested mOnCaptchaRequested = null;
 273	private int accountChangedListenerCount = 0;
 274	private int captchaRequestedListenerCount = 0;
 275	private OnRosterUpdate mOnRosterUpdate = null;
 276	private OnUpdateBlocklist mOnUpdateBlocklist = null;
 277	private int updateBlocklistListenerCount = 0;
 278	private int rosterChangedListenerCount = 0;
 279	private OnMucRosterUpdate mOnMucRosterUpdate = null;
 280	private int mucRosterChangedListenerCount = 0;
 281	private OnKeyStatusUpdated mOnKeyStatusUpdated = null;
 282	private int keyStatusUpdatedListenerCount = 0;
 283	private AtomicLong mLastExpiryRun = new AtomicLong(0);
 284	private SecureRandom mRandom;
 285	private LruCache<Pair<String,String>,ServiceDiscoveryResult> discoCache = new LruCache<>(20);
 286	private final OnBindListener mOnBindListener = new OnBindListener() {
 287
 288		@Override
 289		public void onBind(final Account account) {
 290			synchronized (mInProgressAvatarFetches) {
 291				for (Iterator<String> iterator = mInProgressAvatarFetches.iterator(); iterator.hasNext(); ) {
 292					final String KEY = iterator.next();
 293					if (KEY.startsWith(account.getJid().toBareJid() + "_")) {
 294						iterator.remove();
 295					}
 296				}
 297			}
 298			if (account.setOption(Account.OPTION_LOGGED_IN_SUCCESSFULLY,true)) {
 299				databaseBackend.updateAccount(account);
 300			}
 301			account.getRoster().clearPresences();
 302			mJingleConnectionManager.cancelInTransmission();
 303			fetchRosterFromServer(account);
 304			fetchBookmarks(account);
 305			sendPresence(account);
 306			if (mPushManagementService.available(account)) {
 307				mPushManagementService.registerPushTokenOnServer(account);
 308			}
 309			connectMultiModeConversations(account);
 310			syncDirtyContacts(account);
 311		}
 312	};
 313	private OnStatusChanged statusListener = new OnStatusChanged() {
 314
 315		@Override
 316		public void onStatusChanged(final Account account) {
 317			XmppConnection connection = account.getXmppConnection();
 318			if (mOnAccountUpdate != null) {
 319				mOnAccountUpdate.onAccountUpdate();
 320			}
 321			if (account.getStatus() == Account.State.ONLINE) {
 322				synchronized (mLowPingTimeoutMode) {
 323					if (mLowPingTimeoutMode.remove(account.getJid().toBareJid())) {
 324						Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": leaving low ping timeout mode");
 325					}
 326				}
 327				if (account.setShowErrorNotification(true)) {
 328					databaseBackend.updateAccount(account);
 329				}
 330				mMessageArchiveService.executePendingQueries(account);
 331				if (connection != null && connection.getFeatures().csi()) {
 332					if (checkListeners()) {
 333						Log.d(Config.LOGTAG, account.getJid().toBareJid() + " sending csi//inactive");
 334						connection.sendInactive();
 335					} else {
 336						Log.d(Config.LOGTAG, account.getJid().toBareJid() + " sending csi//active");
 337						connection.sendActive();
 338					}
 339				}
 340				List<Conversation> conversations = getConversations();
 341				for (Conversation conversation : conversations) {
 342					if (conversation.getAccount() == account
 343							&& !account.pendingConferenceJoins.contains(conversation)) {
 344						if (!conversation.startOtrIfNeeded()) {
 345							Log.d(Config.LOGTAG,account.getJid().toBareJid()+": couldn't start OTR with "+conversation.getContact().getJid()+" when needed");
 346						}
 347						sendUnsentMessages(conversation);
 348					}
 349				}
 350				for (Conversation conversation : account.pendingConferenceLeaves) {
 351					leaveMuc(conversation);
 352				}
 353				account.pendingConferenceLeaves.clear();
 354				for (Conversation conversation : account.pendingConferenceJoins) {
 355					joinMuc(conversation);
 356				}
 357				account.pendingConferenceJoins.clear();
 358				scheduleWakeUpCall(Config.PING_MAX_INTERVAL, account.getUuid().hashCode());
 359			} else if (account.getStatus() == Account.State.OFFLINE || account.getStatus() == Account.State.DISABLED) {
 360				resetSendingToWaiting(account);
 361				if (!account.isOptionSet(Account.OPTION_DISABLED) && isInLowPingTimeoutMode(account)) {
 362					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": went into offline state during low ping mode. reconnecting now");
 363					reconnectAccount(account, true, false);
 364				} else {
 365					int timeToReconnect = mRandom.nextInt(10) + 2;
 366					scheduleWakeUpCall(timeToReconnect, account.getUuid().hashCode());
 367				}
 368			} else if (account.getStatus() == Account.State.REGISTRATION_SUCCESSFUL) {
 369				databaseBackend.updateAccount(account);
 370				reconnectAccount(account, true, false);
 371			} else if (account.getStatus() != Account.State.CONNECTING && account.getStatus() != Account.State.NO_INTERNET) {
 372				resetSendingToWaiting(account);
 373				if (connection != null && account.getStatus().isAttemptReconnect()) {
 374					final int next = connection.getTimeToNextAttempt();
 375					final boolean lowPingTimeoutMode = isInLowPingTimeoutMode(account);
 376					if (next <= 0) {
 377						Log.d(Config.LOGTAG, account.getJid().toBareJid()+": error connecting account. reconnecting now. lowPingTimeout="+Boolean.toString(lowPingTimeoutMode));
 378						reconnectAccount(account, true, false);
 379					} else {
 380						final int attempt = connection.getAttempt() + 1;
 381						Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": error connecting account. try again in " + next + "s for the " + attempt+ " time. lowPingTimeout="+Boolean.toString(lowPingTimeoutMode));
 382						scheduleWakeUpCall(next, account.getUuid().hashCode());
 383					}
 384				}
 385			}
 386			getNotificationService().updateErrorNotification();
 387		}
 388	};
 389
 390	private boolean isInLowPingTimeoutMode(Account account) {
 391		synchronized (mLowPingTimeoutMode) {
 392			return mLowPingTimeoutMode.contains(account.getJid().toBareJid());
 393		}
 394	}
 395
 396	public void startForcingForegroundNotification() {
 397		mForceForegroundService.set(true);
 398		toggleForegroundService();
 399	}
 400
 401	public void stopForcingForegroundNotification() {
 402		mForceForegroundService.set(false);
 403		toggleForegroundService();
 404	}
 405
 406	private OpenPgpServiceConnection pgpServiceConnection;
 407	private PgpEngine mPgpEngine = null;
 408	private WakeLock wakeLock;
 409	private PowerManager pm;
 410	private LruCache<String, Bitmap> mBitmapCache;
 411	private EventReceiver mEventReceiver = new EventReceiver();
 412
 413	private boolean mRestoredFromDatabase = false;
 414
 415	private static String generateFetchKey(Account account, final Avatar avatar) {
 416		return account.getJid().toBareJid() + "_" + avatar.owner + "_" + avatar.sha1sum;
 417	}
 418
 419	public boolean areMessagesInitialized() {
 420		return this.mRestoredFromDatabase;
 421	}
 422
 423	public PgpEngine getPgpEngine() {
 424		if (!Config.supportOpenPgp()) {
 425			return null;
 426		} else if (pgpServiceConnection != null && pgpServiceConnection.isBound()) {
 427			if (this.mPgpEngine == null) {
 428				this.mPgpEngine = new PgpEngine(new OpenPgpApi(
 429						getApplicationContext(),
 430						pgpServiceConnection.getService()), this);
 431			}
 432			return mPgpEngine;
 433		} else {
 434			return null;
 435		}
 436
 437	}
 438
 439	public OpenPgpApi getOpenPgpApi() {
 440		if (!Config.supportOpenPgp()) {
 441			return null;
 442		} else if (pgpServiceConnection != null && pgpServiceConnection.isBound()) {
 443			return new OpenPgpApi(this, pgpServiceConnection.getService());
 444		} else {
 445			return null;
 446		}
 447	}
 448
 449	public FileBackend getFileBackend() {
 450		return this.fileBackend;
 451	}
 452
 453	public AvatarService getAvatarService() {
 454		return this.mAvatarService;
 455	}
 456
 457	public void attachLocationToConversation(final Conversation conversation,
 458											 final Uri uri,
 459											 final UiCallback<Message> callback) {
 460		int encryption = conversation.getNextEncryption();
 461		if (encryption == Message.ENCRYPTION_PGP) {
 462			encryption = Message.ENCRYPTION_DECRYPTED;
 463		}
 464		Message message = new Message(conversation, uri.toString(), encryption);
 465		if (conversation.getNextCounterpart() != null) {
 466			message.setCounterpart(conversation.getNextCounterpart());
 467		}
 468		if (encryption == Message.ENCRYPTION_DECRYPTED) {
 469			getPgpEngine().encrypt(message, callback);
 470		} else {
 471			callback.success(message);
 472		}
 473	}
 474
 475	public void attachFileToConversation(final Conversation conversation,
 476										 final Uri uri,
 477										 final UiCallback<Message> callback) {
 478		if (FileBackend.weOwnFile(this, uri)) {
 479			Log.d(Config.LOGTAG,"trying to attach file that belonged to us");
 480			callback.error(R.string.security_error_invalid_file_access, null);
 481			return;
 482		}
 483		final Message message;
 484		if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 485			message = new Message(conversation, "", Message.ENCRYPTION_DECRYPTED);
 486		} else {
 487			message = new Message(conversation, "", conversation.getNextEncryption());
 488		}
 489		message.setCounterpart(conversation.getNextCounterpart());
 490		message.setType(Message.TYPE_FILE);
 491		final AttachFileToConversationRunnable runnable = new AttachFileToConversationRunnable(this,uri,message,callback);
 492		if (runnable.isVideoMessage()) {
 493			mVideoCompressionExecutor.execute(runnable);
 494		} else {
 495			mFileAddingExecutor.execute(runnable);
 496		}
 497	}
 498
 499	public void attachImageToConversation(final Conversation conversation, final Uri uri, final UiCallback<Message> callback) {
 500		if (FileBackend.weOwnFile(this, uri)) {
 501			Log.d(Config.LOGTAG,"trying to attach file that belonged to us");
 502			callback.error(R.string.security_error_invalid_file_access, null);
 503			return;
 504		}
 505
 506		final String mimeType = MimeUtils.guessMimeTypeFromUri(this, uri);
 507		final String compressPictures = getCompressPicturesPreference();
 508
 509		if ("never".equals(compressPictures)
 510				|| ("auto".equals(compressPictures) && getFileBackend().useImageAsIs(uri))
 511				|| (mimeType != null && mimeType.endsWith("/gif"))) {
 512			Log.d(Config.LOGTAG,conversation.getAccount().getJid().toBareJid()+ ": not compressing picture. sending as file");
 513			attachFileToConversation(conversation, uri, callback);
 514			return;
 515		}
 516		final Message message;
 517		if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 518			message = new Message(conversation, "", Message.ENCRYPTION_DECRYPTED);
 519		} else {
 520			message = new Message(conversation, "", conversation.getNextEncryption());
 521		}
 522		message.setCounterpart(conversation.getNextCounterpart());
 523		message.setType(Message.TYPE_IMAGE);
 524		mFileAddingExecutor.execute(new Runnable() {
 525
 526			@Override
 527			public void run() {
 528				try {
 529					getFileBackend().copyImageToPrivateStorage(message, uri);
 530					if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 531						final PgpEngine pgpEngine = getPgpEngine();
 532						if (pgpEngine != null) {
 533							pgpEngine.encrypt(message, callback);
 534						} else if (callback != null){
 535							callback.error(R.string.unable_to_connect_to_keychain, null);
 536						}
 537					} else {
 538						callback.success(message);
 539					}
 540				} catch (final FileBackend.FileCopyException e) {
 541					callback.error(e.getResId(), message);
 542				}
 543			}
 544		});
 545	}
 546
 547	public Conversation find(Bookmark bookmark) {
 548		return find(bookmark.getAccount(), bookmark.getJid());
 549	}
 550
 551	public Conversation find(final Account account, final Jid jid) {
 552		return find(getConversations(), account, jid);
 553	}
 554
 555	@Override
 556	public int onStartCommand(Intent intent, int flags, int startId) {
 557		final String action = intent == null ? null : intent.getAction();
 558		String pushedAccountHash = null;
 559		boolean interactive = false;
 560		if (action != null) {
 561			final String uuid = intent.getStringExtra("uuid");
 562			final Conversation c = findConversationByUuid(uuid);
 563			switch (action) {
 564				case ConnectivityManager.CONNECTIVITY_ACTION:
 565					if (hasInternetConnection() && Config.RESET_ATTEMPT_COUNT_ON_NETWORK_CHANGE) {
 566						resetAllAttemptCounts(true, false);
 567					}
 568					break;
 569				case ACTION_MERGE_PHONE_CONTACTS:
 570					if (mRestoredFromDatabase) {
 571						loadPhoneContacts();
 572					}
 573					return START_STICKY;
 574				case Intent.ACTION_SHUTDOWN:
 575					logoutAndSave(true);
 576					return START_NOT_STICKY;
 577				case ACTION_CLEAR_NOTIFICATION:
 578					if (c != null) {
 579						mNotificationService.clear(c);
 580					} else {
 581						mNotificationService.clear();
 582					}
 583					break;
 584				case ACTION_DISMISS_ERROR_NOTIFICATIONS:
 585					dismissErrorNotifications();
 586					break;
 587				case ACTION_TRY_AGAIN:
 588					resetAllAttemptCounts(false, true);
 589					interactive = true;
 590					break;
 591				case ACTION_REPLY_TO_CONVERSATION:
 592					Bundle remoteInput = RemoteInput.getResultsFromIntent(intent);
 593					if (remoteInput != null && c != null) {
 594						final CharSequence body = remoteInput.getCharSequence("text_reply");
 595						if (body != null && body.length() > 0) {
 596							directReply(c, body.toString(),intent.getBooleanExtra("dismiss_notification",false));
 597						}
 598					}
 599					break;
 600				case ACTION_MARK_AS_READ:
 601					if (c != null) {
 602						sendReadMarker(c);
 603					} else {
 604						Log.d(Config.LOGTAG,"received mark read intent for unknown conversation ("+uuid+")");
 605					}
 606					break;
 607				case AudioManager.RINGER_MODE_CHANGED_ACTION:
 608					if (dndOnSilentMode()) {
 609						refreshAllPresences();
 610					}
 611					break;
 612				case Intent.ACTION_SCREEN_ON:
 613					deactivateGracePeriod();
 614				case Intent.ACTION_SCREEN_OFF:
 615					if (awayWhenScreenOff()) {
 616						refreshAllPresences();
 617					}
 618					break;
 619				case ACTION_GCM_TOKEN_REFRESH:
 620					refreshAllGcmTokens();
 621					break;
 622				case ACTION_IDLE_PING:
 623					if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 624						scheduleNextIdlePing();
 625					}
 626					break;
 627				case ACTION_GCM_MESSAGE_RECEIVED:
 628					Log.d(Config.LOGTAG,"gcm push message arrived in service. extras="+intent.getExtras());
 629					pushedAccountHash = intent.getStringExtra("account");
 630					break;
 631			}
 632		}
 633		synchronized (this) {
 634			this.wakeLock.acquire();
 635			boolean pingNow = ConnectivityManager.CONNECTIVITY_ACTION.equals(action);
 636			HashSet<Account> pingCandidates = new HashSet<>();
 637			for (Account account : accounts) {
 638				pingNow |= processAccountState(account,
 639						interactive,
 640						"ui".equals(action),
 641						CryptoHelper.getAccountFingerprint(account).equals(pushedAccountHash),
 642						pingCandidates);
 643			}
 644			if (pingNow) {
 645				for (Account account : pingCandidates) {
 646					final boolean lowTimeout = isInLowPingTimeoutMode(account);
 647					account.getXmppConnection().sendPing();
 648					Log.d(Config.LOGTAG, account.getJid().toBareJid() + " send ping (action=" + action + ",lowTimeout=" + Boolean.toString(lowTimeout) + ")");
 649					scheduleWakeUpCall(lowTimeout ? Config.LOW_PING_TIMEOUT : Config.PING_TIMEOUT, account.getUuid().hashCode());
 650				}
 651			}
 652			if (wakeLock.isHeld()) {
 653				try {
 654					wakeLock.release();
 655				} catch (final RuntimeException ignored) {
 656				}
 657			}
 658		}
 659		if (SystemClock.elapsedRealtime() - mLastExpiryRun.get() >= Config.EXPIRY_INTERVAL) {
 660			expireOldMessages();
 661		}
 662		return START_STICKY;
 663	}
 664
 665	private boolean processAccountState(Account account, boolean interactive, boolean isUiAction, boolean isAccountPushed, HashSet<Account> pingCandidates) {
 666		boolean pingNow = false;
 667		if (account.getStatus().isAttemptReconnect()) {
 668			if (!hasInternetConnection()) {
 669				account.setStatus(Account.State.NO_INTERNET);
 670				if (statusListener != null) {
 671					statusListener.onStatusChanged(account);
 672				}
 673			} else {
 674				if (account.getStatus() == Account.State.NO_INTERNET) {
 675					account.setStatus(Account.State.OFFLINE);
 676					if (statusListener != null) {
 677						statusListener.onStatusChanged(account);
 678					}
 679				}
 680				if (account.getStatus() == Account.State.ONLINE) {
 681					synchronized (mLowPingTimeoutMode) {
 682						long lastReceived = account.getXmppConnection().getLastPacketReceived();
 683						long lastSent = account.getXmppConnection().getLastPingSent();
 684						long pingInterval = isUiAction ? Config.PING_MIN_INTERVAL * 1000 : Config.PING_MAX_INTERVAL * 1000;
 685						long msToNextPing = (Math.max(lastReceived, lastSent) + pingInterval) - SystemClock.elapsedRealtime();
 686						int pingTimeout = mLowPingTimeoutMode.contains(account.getJid().toBareJid()) ? Config.LOW_PING_TIMEOUT * 1000 : Config.PING_TIMEOUT * 1000;
 687						long pingTimeoutIn = (lastSent + pingTimeout) - SystemClock.elapsedRealtime();
 688						if (lastSent > lastReceived) {
 689							if (pingTimeoutIn < 0) {
 690								Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": ping timeout");
 691								this.reconnectAccount(account, true, interactive);
 692							} else {
 693								int secs = (int) (pingTimeoutIn / 1000);
 694								this.scheduleWakeUpCall(secs, account.getUuid().hashCode());
 695							}
 696						} else {
 697							pingCandidates.add(account);
 698							if (isAccountPushed) {
 699								pingNow = true;
 700								if (mLowPingTimeoutMode.add(account.getJid().toBareJid())) {
 701									Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": entering low ping timeout mode");
 702								}
 703							} else if (msToNextPing <= 0) {
 704								pingNow = true;
 705							} else {
 706								this.scheduleWakeUpCall((int) (msToNextPing / 1000), account.getUuid().hashCode());
 707								if (mLowPingTimeoutMode.remove(account.getJid().toBareJid())) {
 708									Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": leaving low ping timeout mode");
 709								}
 710							}
 711						}
 712					}
 713				} else if (account.getStatus() == Account.State.OFFLINE) {
 714					reconnectAccount(account, true, interactive);
 715				} else if (account.getStatus() == Account.State.CONNECTING) {
 716					long secondsSinceLastConnect = (SystemClock.elapsedRealtime() - account.getXmppConnection().getLastConnect()) / 1000;
 717					long secondsSinceLastDisco = (SystemClock.elapsedRealtime() - account.getXmppConnection().getLastDiscoStarted()) / 1000;
 718					long discoTimeout = Config.CONNECT_DISCO_TIMEOUT - secondsSinceLastDisco;
 719					long timeout = Config.CONNECT_TIMEOUT - secondsSinceLastConnect;
 720					if (timeout < 0) {
 721						Log.d(Config.LOGTAG, account.getJid() + ": time out during connect reconnecting (secondsSinceLast="+secondsSinceLastConnect+")");
 722						account.getXmppConnection().resetAttemptCount(false);
 723						reconnectAccount(account, true, interactive);
 724					} else if (discoTimeout < 0) {
 725						account.getXmppConnection().sendDiscoTimeout();
 726						scheduleWakeUpCall((int) Math.min(timeout,discoTimeout), account.getUuid().hashCode());
 727					} else {
 728						scheduleWakeUpCall((int) Math.min(timeout,discoTimeout), account.getUuid().hashCode());
 729					}
 730				} else {
 731					if (account.getXmppConnection().getTimeToNextAttempt() <= 0) {
 732						reconnectAccount(account, true, interactive);
 733					}
 734				}
 735			}
 736		}
 737		return pingNow;
 738	}
 739
 740	public boolean isDataSaverDisabled() {
 741		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 742			ConnectivityManager connectivityManager = (ConnectivityManager) getSystemService(CONNECTIVITY_SERVICE);
 743			return !connectivityManager.isActiveNetworkMetered()
 744					|| connectivityManager.getRestrictBackgroundStatus() == ConnectivityManager.RESTRICT_BACKGROUND_STATUS_DISABLED;
 745		} else {
 746			return true;
 747		}
 748	}
 749
 750	private void directReply(Conversation conversation, String body, final boolean dismissAfterReply) {
 751		Message message = new Message(conversation,body,conversation.getNextEncryption());
 752		message.markUnread();
 753		if (message.getEncryption() == Message.ENCRYPTION_PGP) {
 754			getPgpEngine().encrypt(message, new UiCallback<Message>() {
 755				@Override
 756				public void success(Message message) {
 757					message.setEncryption(Message.ENCRYPTION_DECRYPTED);
 758					sendMessage(message);
 759					if (dismissAfterReply) {
 760						markRead(message.getConversation(),true);
 761					} else {
 762						mNotificationService.pushFromDirectReply(message);
 763					}
 764				}
 765
 766				@Override
 767				public void error(int errorCode, Message object) {
 768
 769				}
 770
 771				@Override
 772				public void userInputRequried(PendingIntent pi, Message object) {
 773
 774				}
 775			});
 776		} else {
 777			sendMessage(message);
 778			if (dismissAfterReply) {
 779				markRead(conversation,true);
 780			} else {
 781				mNotificationService.pushFromDirectReply(message);
 782			}
 783		}
 784	}
 785
 786	private boolean dndOnSilentMode() {
 787		return getBooleanPreference(SettingsActivity.DND_ON_SILENT_MODE, R.bool.dnd_on_silent_mode);
 788	}
 789
 790	private boolean manuallyChangePresence() {
 791		return getBooleanPreference(SettingsActivity.MANUALLY_CHANGE_PRESENCE, R.bool.manually_change_presence);
 792	}
 793
 794	private boolean treatVibrateAsSilent() {
 795		return getBooleanPreference(SettingsActivity.TREAT_VIBRATE_AS_SILENT, R.bool.treat_vibrate_as_silent);
 796	}
 797
 798	private boolean awayWhenScreenOff() {
 799		return getBooleanPreference(SettingsActivity.AWAY_WHEN_SCREEN_IS_OFF,R.bool.away_when_screen_off);
 800	}
 801
 802	private String getCompressPicturesPreference() {
 803		return getPreferences().getString("picture_compression", getResources().getString(R.string.picture_compression));
 804	}
 805
 806	private Presence.Status getTargetPresence() {
 807		if (dndOnSilentMode() && isPhoneSilenced()) {
 808			return Presence.Status.DND;
 809		} else if (awayWhenScreenOff() && !isInteractive()) {
 810			return Presence.Status.AWAY;
 811		} else {
 812			return Presence.Status.ONLINE;
 813		}
 814	}
 815
 816	@SuppressLint("NewApi")
 817	@SuppressWarnings("deprecation")
 818	public boolean isInteractive() {
 819		final PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 820
 821		final boolean isScreenOn;
 822		if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
 823			isScreenOn = pm.isScreenOn();
 824		} else {
 825			isScreenOn = pm.isInteractive();
 826		}
 827		return isScreenOn;
 828	}
 829
 830	private boolean isPhoneSilenced() {
 831		AudioManager audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
 832		try {
 833			if (treatVibrateAsSilent()) {
 834				return audioManager.getRingerMode() != AudioManager.RINGER_MODE_NORMAL;
 835			} else {
 836				return audioManager.getRingerMode() == AudioManager.RINGER_MODE_SILENT;
 837			}
 838		} catch (Throwable throwable) {
 839			Log.d(Config.LOGTAG,"platform bug in isPhoneSilenced ("+ throwable.getMessage()+")");
 840			return false;
 841		}
 842	}
 843
 844	private void resetAllAttemptCounts(boolean reallyAll, boolean retryImmediately) {
 845		Log.d(Config.LOGTAG, "resetting all attempt counts");
 846		for (Account account : accounts) {
 847			if (account.hasErrorStatus() || reallyAll) {
 848				final XmppConnection connection = account.getXmppConnection();
 849				if (connection != null) {
 850					connection.resetAttemptCount(retryImmediately);
 851				}
 852			}
 853			if (account.setShowErrorNotification(true)) {
 854				databaseBackend.updateAccount(account);
 855			}
 856		}
 857		mNotificationService.updateErrorNotification();
 858	}
 859
 860	private void dismissErrorNotifications() {
 861		for (final Account account : this.accounts) {
 862			if (account.hasErrorStatus()) {
 863				Log.d(Config.LOGTAG,account.getJid().toBareJid()+": dismissing error notification");
 864				if (account.setShowErrorNotification(false)) {
 865					databaseBackend.updateAccount(account);
 866				}
 867			}
 868		}
 869	}
 870
 871	private void expireOldMessages() {
 872		expireOldMessages(false);
 873	}
 874
 875	public void expireOldMessages(final boolean resetHasMessagesLeftOnServer) {
 876		mLastExpiryRun.set(SystemClock.elapsedRealtime());
 877		mDatabaseExecutor.execute(new Runnable() {
 878			@Override
 879			public void run() {
 880				long timestamp = getAutomaticMessageDeletionDate();
 881				if (timestamp > 0) {
 882					databaseBackend.expireOldMessages(timestamp);
 883					synchronized (XmppConnectionService.this.conversations) {
 884						for (Conversation conversation : XmppConnectionService.this.conversations) {
 885							conversation.expireOldMessages(timestamp);
 886							if (resetHasMessagesLeftOnServer) {
 887								conversation.messagesLoaded.set(true);
 888								conversation.setHasMessagesLeftOnServer(true);
 889							}
 890						}
 891					}
 892					updateConversationUi();
 893				}
 894			}
 895		});
 896	}
 897
 898	public boolean hasInternetConnection() {
 899		ConnectivityManager cm = (ConnectivityManager) getApplicationContext()
 900				.getSystemService(Context.CONNECTIVITY_SERVICE);
 901		NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
 902		return activeNetwork != null && activeNetwork.isConnected();
 903	}
 904
 905	@SuppressLint("TrulyRandom")
 906	@Override
 907	public void onCreate() {
 908		ExceptionHelper.init(getApplicationContext());
 909		PRNGFixes.apply();
 910		Resolver.init(this);
 911		this.mRandom = new SecureRandom();
 912		updateMemorizingTrustmanager();
 913		final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024);
 914		final int cacheSize = maxMemory / 8;
 915		this.mBitmapCache = new LruCache<String, Bitmap>(cacheSize) {
 916			@Override
 917			protected int sizeOf(final String key, final Bitmap bitmap) {
 918				return bitmap.getByteCount() / 1024;
 919			}
 920		};
 921
 922		Log.d(Config.LOGTAG,"initializing database...");
 923		this.databaseBackend = DatabaseBackend.getInstance(getApplicationContext());
 924		Log.d(Config.LOGTAG,"restoring accounts...");
 925		this.accounts = databaseBackend.getAccounts();
 926
 927		if (this.accounts.size() == 0 && Arrays.asList("Sony","Sony Ericsson").contains(Build.MANUFACTURER)) {
 928			getPreferences().edit().putBoolean(SettingsActivity.KEEP_FOREGROUND_SERVICE,true).commit();
 929			Log.d(Config.LOGTAG,Build.MANUFACTURER+" is on blacklist. enabling foreground service");
 930		}
 931
 932		restoreFromDatabase();
 933
 934		getContentResolver().registerContentObserver(ContactsContract.Contacts.CONTENT_URI, true, contactObserver);
 935		new Thread(new Runnable() {
 936			@Override
 937			public void run() {
 938				fileObserver.startWatching();
 939			}
 940		}).start();
 941		if (Config.supportOpenPgp()) {
 942			this.pgpServiceConnection = new OpenPgpServiceConnection(getApplicationContext(), "org.sufficientlysecure.keychain", new OpenPgpServiceConnection.OnBound() {
 943				@Override
 944				public void onBound(IOpenPgpService2 service) {
 945					for (Account account : accounts) {
 946						final PgpDecryptionService pgp = account.getPgpDecryptionService();
 947						if(pgp != null) {
 948							pgp.continueDecryption(true);
 949						}
 950					}
 951				}
 952
 953				@Override
 954				public void onError(Exception e) {
 955				}
 956			});
 957			this.pgpServiceConnection.bindToService();
 958		}
 959
 960		this.pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 961		this.wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "XmppConnectionService");
 962
 963		toggleForegroundService();
 964		updateUnreadCountBadge();
 965		toggleScreenEventReceiver();
 966		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 967			scheduleNextIdlePing();
 968		}
 969		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 970			registerReceiver(this.mEventReceiver,new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION));
 971		}
 972	}
 973
 974	@Override
 975	public void onTrimMemory(int level) {
 976		super.onTrimMemory(level);
 977		if (level >= TRIM_MEMORY_COMPLETE) {
 978			Log.d(Config.LOGTAG, "clear cache due to low memory");
 979			getBitmapCache().evictAll();
 980		}
 981	}
 982
 983	@Override
 984	public void onDestroy() {
 985		try {
 986			unregisterReceiver(this.mEventReceiver);
 987		} catch (IllegalArgumentException e) {
 988			//ignored
 989		}
 990		fileObserver.stopWatching();
 991		super.onDestroy();
 992	}
 993
 994	public void toggleScreenEventReceiver() {
 995		if (awayWhenScreenOff() && !manuallyChangePresence()) {
 996			final IntentFilter filter = new IntentFilter(Intent.ACTION_SCREEN_ON);
 997			filter.addAction(Intent.ACTION_SCREEN_OFF);
 998			registerReceiver(this.mEventReceiver, filter);
 999		} else {
1000			try {
1001				unregisterReceiver(this.mEventReceiver);
1002			} catch (IllegalArgumentException e) {
1003				//ignored
1004			}
1005		}
1006	}
1007
1008	public void toggleForegroundService() {
1009		if (mForceForegroundService.get() || (keepForegroundService() && hasEnabledAccounts())) {
1010			startForeground(NotificationService.FOREGROUND_NOTIFICATION_ID, this.mNotificationService.createForegroundNotification());
1011			Log.d(Config.LOGTAG,"started foreground service");
1012		} else {
1013			stopForeground(true);
1014			Log.d(Config.LOGTAG,"stopped foreground service");
1015		}
1016	}
1017
1018	public boolean keepForegroundService() {
1019		return getBooleanPreference(SettingsActivity.KEEP_FOREGROUND_SERVICE,R.bool.enable_foreground_service);
1020	}
1021
1022	@Override
1023	public void onTaskRemoved(final Intent rootIntent) {
1024		super.onTaskRemoved(rootIntent);
1025		if (keepForegroundService() || mForceForegroundService.get()) {
1026			Log.d(Config.LOGTAG,"ignoring onTaskRemoved because foreground service is activated");
1027		} else {
1028			this.logoutAndSave(false);
1029		}
1030	}
1031
1032	private void logoutAndSave(boolean stop) {
1033		int activeAccounts = 0;
1034		for (final Account account : accounts) {
1035			if (account.getStatus() != Account.State.DISABLED) {
1036				activeAccounts++;
1037			}
1038			databaseBackend.writeRoster(account.getRoster());
1039			if (account.getXmppConnection() != null) {
1040				new Thread(new Runnable() {
1041					@Override
1042					public void run() {
1043						disconnect(account, false);
1044					}
1045				}).start();
1046			}
1047		}
1048		if (stop || activeAccounts == 0) {
1049			Log.d(Config.LOGTAG, "good bye");
1050			stopSelf();
1051		}
1052	}
1053
1054	public void scheduleWakeUpCall(int seconds, int requestCode) {
1055		final long timeToWake = SystemClock.elapsedRealtime() + (seconds < 0 ? 1 : seconds + 1) * 1000;
1056		AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
1057		Intent intent = new Intent(this, EventReceiver.class);
1058		intent.setAction("ping");
1059		PendingIntent alarmIntent = PendingIntent.getBroadcast(this, requestCode, intent, 0);
1060		alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake, alarmIntent);
1061	}
1062
1063	@TargetApi(Build.VERSION_CODES.M)
1064	private void scheduleNextIdlePing() {
1065		Log.d(Config.LOGTAG,"schedule next idle ping");
1066		AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
1067		Intent intent = new Intent(this, EventReceiver.class);
1068		intent.setAction(ACTION_IDLE_PING);
1069		alarmManager.setAndAllowWhileIdle(AlarmManager.ELAPSED_REALTIME_WAKEUP,
1070				SystemClock.elapsedRealtime()+(Config.IDLE_PING_INTERVAL * 1000),
1071				PendingIntent.getBroadcast(this,0,intent,0)
1072				);
1073	}
1074
1075	public XmppConnection createConnection(final Account account) {
1076		final SharedPreferences sharedPref = getPreferences();
1077		String resource;
1078		try {
1079			resource = sharedPref.getString("resource", getString(R.string.default_resource)).toLowerCase(Locale.ENGLISH);
1080			if (resource.trim().isEmpty()) {
1081				throw new Exception();
1082			}
1083		} catch (Exception e) {
1084			resource = "conversations";
1085		}
1086		account.setResource(resource);
1087		final XmppConnection connection = new XmppConnection(account, this);
1088		connection.setOnMessagePacketReceivedListener(this.mMessageParser);
1089		connection.setOnStatusChangedListener(this.statusListener);
1090		connection.setOnPresencePacketReceivedListener(this.mPresenceParser);
1091		connection.setOnUnregisteredIqPacketReceivedListener(this.mIqParser);
1092		connection.setOnJinglePacketReceivedListener(this.jingleListener);
1093		connection.setOnBindListener(this.mOnBindListener);
1094		connection.setOnMessageAcknowledgeListener(this.mOnMessageAcknowledgedListener);
1095		connection.addOnAdvancedStreamFeaturesAvailableListener(this.mMessageArchiveService);
1096		connection.addOnAdvancedStreamFeaturesAvailableListener(this.mAvatarService);
1097		AxolotlService axolotlService = account.getAxolotlService();
1098		if (axolotlService != null) {
1099			connection.addOnAdvancedStreamFeaturesAvailableListener(axolotlService);
1100		}
1101		return connection;
1102	}
1103
1104	public void sendChatState(Conversation conversation) {
1105		if (sendChatStates()) {
1106			MessagePacket packet = mMessageGenerator.generateChatState(conversation);
1107			sendMessagePacket(conversation.getAccount(), packet);
1108		}
1109	}
1110
1111	private void sendFileMessage(final Message message, final boolean delay) {
1112		Log.d(Config.LOGTAG, "send file message");
1113		final Account account = message.getConversation().getAccount();
1114		if (account.httpUploadAvailable(fileBackend.getFile(message,false).getSize())
1115				|| message.getConversation().getMode() == Conversation.MODE_MULTI) {
1116			mHttpConnectionManager.createNewUploadConnection(message, delay);
1117		} else {
1118			mJingleConnectionManager.createNewConnection(message);
1119		}
1120	}
1121
1122	public void sendMessage(final Message message) {
1123		sendMessage(message, false, false);
1124	}
1125
1126	private void sendMessage(final Message message, final boolean resend, final boolean delay) {
1127		final Account account = message.getConversation().getAccount();
1128		if (account.setShowErrorNotification(true)) {
1129			databaseBackend.updateAccount(account);
1130			mNotificationService.updateErrorNotification();
1131		}
1132		final Conversation conversation = message.getConversation();
1133		account.deactivateGracePeriod();
1134		MessagePacket packet = null;
1135		final boolean addToConversation = (conversation.getMode() != Conversation.MODE_MULTI
1136				|| !Patches.BAD_MUC_REFLECTION.contains(account.getServerIdentity()))
1137				&& !message.edited();
1138		boolean saveInDb = addToConversation;
1139		message.setStatus(Message.STATUS_WAITING);
1140
1141		if (!resend && message.getEncryption() != Message.ENCRYPTION_OTR) {
1142			message.getConversation().endOtrIfNeeded();
1143			message.getConversation().findUnsentMessagesWithEncryption(Message.ENCRYPTION_OTR,
1144					new Conversation.OnMessageFound() {
1145						@Override
1146						public void onMessageFound(Message message) {
1147							markMessage(message, Message.STATUS_SEND_FAILED);
1148						}
1149					});
1150		}
1151
1152		if (account.isOnlineAndConnected()) {
1153			switch (message.getEncryption()) {
1154				case Message.ENCRYPTION_NONE:
1155					if (message.needsUploading()) {
1156						if (account.httpUploadAvailable(fileBackend.getFile(message,false).getSize())
1157								|| conversation.getMode() == Conversation.MODE_MULTI
1158								|| message.fixCounterpart()) {
1159							this.sendFileMessage(message, delay);
1160						} else {
1161							break;
1162						}
1163					} else {
1164						packet = mMessageGenerator.generateChat(message);
1165					}
1166					break;
1167				case Message.ENCRYPTION_PGP:
1168				case Message.ENCRYPTION_DECRYPTED:
1169					if (message.needsUploading()) {
1170						if (account.httpUploadAvailable(fileBackend.getFile(message,false).getSize())
1171								|| conversation.getMode() == Conversation.MODE_MULTI
1172								|| message.fixCounterpart()) {
1173							this.sendFileMessage(message, delay);
1174						} else {
1175							break;
1176						}
1177					} else {
1178						packet = mMessageGenerator.generatePgpChat(message);
1179					}
1180					break;
1181				case Message.ENCRYPTION_OTR:
1182					SessionImpl otrSession = conversation.getOtrSession();
1183					if (otrSession != null && otrSession.getSessionStatus() == SessionStatus.ENCRYPTED) {
1184						try {
1185							message.setCounterpart(Jid.fromSessionID(otrSession.getSessionID()));
1186						} catch (InvalidJidException e) {
1187							break;
1188						}
1189						if (message.needsUploading()) {
1190							mJingleConnectionManager.createNewConnection(message);
1191						} else {
1192							packet = mMessageGenerator.generateOtrChat(message);
1193						}
1194					} else if (otrSession == null) {
1195						if (message.fixCounterpart()) {
1196							conversation.startOtrSession(message.getCounterpart().getResourcepart(), true);
1197						} else {
1198							Log.d(Config.LOGTAG,account.getJid().toBareJid()+": could not fix counterpart for OTR message to contact "+message.getCounterpart());
1199							break;
1200						}
1201					} else {
1202						Log.d(Config.LOGTAG,account.getJid().toBareJid()+" OTR session with "+message.getContact()+" is in wrong state: "+otrSession.getSessionStatus().toString());
1203					}
1204					break;
1205				case Message.ENCRYPTION_AXOLOTL:
1206					message.setFingerprint(account.getAxolotlService().getOwnFingerprint());
1207					if (message.needsUploading()) {
1208						if (account.httpUploadAvailable(fileBackend.getFile(message,false).getSize())
1209								|| conversation.getMode() == Conversation.MODE_MULTI
1210								|| message.fixCounterpart()) {
1211							this.sendFileMessage(message, delay);
1212						} else {
1213							break;
1214						}
1215					} else {
1216						XmppAxolotlMessage axolotlMessage = account.getAxolotlService().fetchAxolotlMessageFromCache(message);
1217						if (axolotlMessage == null) {
1218							account.getAxolotlService().preparePayloadMessage(message, delay);
1219						} else {
1220							packet = mMessageGenerator.generateAxolotlChat(message, axolotlMessage);
1221						}
1222					}
1223					break;
1224
1225			}
1226			if (packet != null) {
1227				if (account.getXmppConnection().getFeatures().sm()
1228						|| (conversation.getMode() == Conversation.MODE_MULTI && message.getCounterpart().isBareJid())) {
1229					message.setStatus(Message.STATUS_UNSEND);
1230				} else {
1231					message.setStatus(Message.STATUS_SEND);
1232				}
1233			}
1234		} else {
1235			switch (message.getEncryption()) {
1236				case Message.ENCRYPTION_DECRYPTED:
1237					if (!message.needsUploading()) {
1238						String pgpBody = message.getEncryptedBody();
1239						String decryptedBody = message.getBody();
1240						message.setBody(pgpBody);
1241						message.setEncryption(Message.ENCRYPTION_PGP);
1242						if (message.edited()) {
1243							message.setBody(decryptedBody);
1244							message.setEncryption(Message.ENCRYPTION_DECRYPTED);
1245							databaseBackend.updateMessage(message, message.getEditedId());
1246							updateConversationUi();
1247							return;
1248						} else {
1249							databaseBackend.createMessage(message);
1250							saveInDb = false;
1251							message.setBody(decryptedBody);
1252							message.setEncryption(Message.ENCRYPTION_DECRYPTED);
1253						}
1254					}
1255					break;
1256				case Message.ENCRYPTION_OTR:
1257					if (!conversation.hasValidOtrSession() && message.getCounterpart() != null) {
1258						Log.d(Config.LOGTAG,account.getJid().toBareJid()+": create otr session without starting for "+message.getContact().getJid());
1259						conversation.startOtrSession(message.getCounterpart().getResourcepart(), false);
1260					}
1261					break;
1262				case Message.ENCRYPTION_AXOLOTL:
1263					message.setFingerprint(account.getAxolotlService().getOwnFingerprint());
1264					break;
1265			}
1266		}
1267
1268		if (resend) {
1269			if (packet != null && addToConversation) {
1270				if (account.getXmppConnection().getFeatures().sm()
1271						|| (conversation.getMode() == Conversation.MODE_MULTI && message.getCounterpart().isBareJid())) {
1272					markMessage(message, Message.STATUS_UNSEND);
1273				} else {
1274					markMessage(message, Message.STATUS_SEND);
1275				}
1276			}
1277		} else {
1278			if (addToConversation) {
1279				conversation.add(message);
1280			}
1281			if (saveInDb) {
1282				databaseBackend.createMessage(message);
1283			} else if (message.edited()) {
1284				databaseBackend.updateMessage(message, message.getEditedId());
1285			}
1286			updateConversationUi();
1287		}
1288		if (packet != null) {
1289			if (delay) {
1290				mMessageGenerator.addDelay(packet, message.getTimeSent());
1291			}
1292			if (conversation.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
1293				if (this.sendChatStates()) {
1294					packet.addChild(ChatState.toElement(conversation.getOutgoingChatState()));
1295				}
1296			}
1297			sendMessagePacket(account, packet);
1298		}
1299	}
1300
1301	private void sendUnsentMessages(final Conversation conversation) {
1302		conversation.findWaitingMessages(new Conversation.OnMessageFound() {
1303
1304			@Override
1305			public void onMessageFound(Message message) {
1306				resendMessage(message, true);
1307			}
1308		});
1309	}
1310
1311	public void resendMessage(final Message message, final boolean delay) {
1312		sendMessage(message, true, delay);
1313	}
1314
1315	public void fetchRosterFromServer(final Account account) {
1316		final IqPacket iqPacket = new IqPacket(IqPacket.TYPE.GET);
1317		if (!"".equals(account.getRosterVersion())) {
1318			Log.d(Config.LOGTAG, account.getJid().toBareJid()
1319					+ ": fetching roster version " + account.getRosterVersion());
1320		} else {
1321			Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": fetching roster");
1322		}
1323		iqPacket.query(Namespace.ROSTER).setAttribute("ver", account.getRosterVersion());
1324		sendIqPacket(account, iqPacket, mIqParser);
1325	}
1326
1327	public void fetchBookmarks(final Account account) {
1328		final IqPacket iqPacket = new IqPacket(IqPacket.TYPE.GET);
1329		final Element query = iqPacket.query("jabber:iq:private");
1330		query.addChild("storage", "storage:bookmarks");
1331		final OnIqPacketReceived callback = new OnIqPacketReceived() {
1332
1333			@Override
1334			public void onIqPacketReceived(final Account account, final IqPacket packet) {
1335				if (packet.getType() == IqPacket.TYPE.RESULT) {
1336					final Element query = packet.query();
1337					final HashMap<Jid, Bookmark> bookmarks = new HashMap<>();
1338					final Element storage = query.findChild("storage", "storage:bookmarks");
1339					final boolean autojoin = respectAutojoin();
1340					if (storage != null) {
1341						for (final Element item : storage.getChildren()) {
1342							if (item.getName().equals("conference")) {
1343								final Bookmark bookmark = Bookmark.parse(item, account);
1344								Bookmark old = bookmarks.put(bookmark.getJid(), bookmark);
1345								if (old != null && old.getBookmarkName() != null && bookmark.getBookmarkName() == null) {
1346									bookmark.setBookmarkName(old.getBookmarkName());
1347								}
1348								Conversation conversation = find(bookmark);
1349								if (conversation != null) {
1350									conversation.setBookmark(bookmark);
1351								} else if (bookmark.autojoin() && bookmark.getJid() != null && autojoin) {
1352									conversation = findOrCreateConversation(account, bookmark.getJid(), true, true, false);
1353									conversation.setBookmark(bookmark);
1354								}
1355							}
1356						}
1357					}
1358					account.setBookmarks(new ArrayList<>(bookmarks.values()));
1359				} else {
1360					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": could not fetch bookmarks");
1361				}
1362			}
1363		};
1364		sendIqPacket(account, iqPacket, callback);
1365	}
1366
1367	public void pushBookmarks(Account account) {
1368		Log.d(Config.LOGTAG, account.getJid().toBareJid()+": pushing bookmarks");
1369		IqPacket iqPacket = new IqPacket(IqPacket.TYPE.SET);
1370		Element query = iqPacket.query("jabber:iq:private");
1371		Element storage = query.addChild("storage", "storage:bookmarks");
1372		for (Bookmark bookmark : account.getBookmarks()) {
1373			storage.addChild(bookmark);
1374		}
1375		sendIqPacket(account, iqPacket, mDefaultIqHandler);
1376	}
1377
1378	private void restoreFromDatabase() {
1379		synchronized (this.conversations) {
1380			final Map<String, Account> accountLookupTable = new Hashtable<>();
1381			for (Account account : this.accounts) {
1382				accountLookupTable.put(account.getUuid(), account);
1383			}
1384			Log.d(Config.LOGTAG,"restoring conversations...");
1385			final long startTimeConversationsRestore = SystemClock.elapsedRealtime();
1386			this.conversations.addAll(databaseBackend.getConversations(Conversation.STATUS_AVAILABLE));
1387			for(Iterator<Conversation> iterator = conversations.listIterator(); iterator.hasNext();) {
1388				Conversation conversation = iterator.next();
1389				Account account = accountLookupTable.get(conversation.getAccountUuid());
1390				if (account != null) {
1391					conversation.setAccount(account);
1392				} else {
1393					Log.e(Config.LOGTAG,"unable to restore Conversations with "+conversation.getJid());
1394					iterator.remove();
1395				}
1396			}
1397			long diffConversationsRestore = SystemClock.elapsedRealtime() - startTimeConversationsRestore;
1398			Log.d(Config.LOGTAG,"finished restoring conversations in "+diffConversationsRestore+"ms");
1399			Runnable runnable = new Runnable() {
1400				@Override
1401				public void run() {
1402					long deletionDate = getAutomaticMessageDeletionDate();
1403					mLastExpiryRun.set(SystemClock.elapsedRealtime());
1404					if (deletionDate > 0) {
1405						Log.d(Config.LOGTAG, "deleting messages that are older than "+AbstractGenerator.getTimestamp(deletionDate));
1406						databaseBackend.expireOldMessages(deletionDate);
1407					}
1408					Log.d(Config.LOGTAG,"restoring roster...");
1409					for (Account account : accounts) {
1410						databaseBackend.readRoster(account.getRoster());
1411						account.initAccountServices(XmppConnectionService.this); //roster needs to be loaded at this stage
1412					}
1413					getBitmapCache().evictAll();
1414					loadPhoneContacts();
1415					Log.d(Config.LOGTAG, "restoring messages...");
1416					final long startMessageRestore = SystemClock.elapsedRealtime();
1417					for (Conversation conversation : conversations) {
1418						conversation.addAll(0, databaseBackend.getMessages(conversation, Config.PAGE_SIZE));
1419						checkDeletedFiles(conversation);
1420						conversation.findUnsentTextMessages(new Conversation.OnMessageFound() {
1421
1422							@Override
1423							public void onMessageFound(Message message) {
1424								markMessage(message, Message.STATUS_WAITING);
1425							}
1426						});
1427						conversation.findUnreadMessages(new Conversation.OnMessageFound() {
1428							@Override
1429							public void onMessageFound(Message message) {
1430								mNotificationService.pushFromBacklog(message);
1431							}
1432						});
1433					}
1434					mNotificationService.finishBacklog(false);
1435					mRestoredFromDatabase = true;
1436					final long diffMessageRestore = SystemClock.elapsedRealtime() - startMessageRestore;
1437					Log.d(Config.LOGTAG, "finished restoring messages in "+diffMessageRestore+"ms");
1438					updateConversationUi();
1439				}
1440			};
1441			mDatabaseExecutor.execute(runnable);
1442		}
1443	}
1444
1445	public void loadPhoneContacts() {
1446		mContactMergerExecutor.execute(new Runnable() {
1447			@Override
1448			public void run() {
1449				PhoneHelper.loadPhoneContacts(XmppConnectionService.this, new OnPhoneContactsLoadedListener() {
1450					@Override
1451					public void onPhoneContactsLoaded(List<Bundle> phoneContacts) {
1452						Log.d(Config.LOGTAG, "start merging phone contacts with roster");
1453						for (Account account : accounts) {
1454							List<Contact> withSystemAccounts = account.getRoster().getWithSystemAccounts();
1455							for (Bundle phoneContact : phoneContacts) {
1456								Jid jid;
1457								try {
1458									jid = Jid.fromString(phoneContact.getString("jid"));
1459								} catch (final InvalidJidException e) {
1460									continue;
1461								}
1462								final Contact contact = account.getRoster().getContact(jid);
1463								String systemAccount = phoneContact.getInt("phoneid")
1464										+ "#"
1465										+ phoneContact.getString("lookup");
1466								contact.setSystemAccount(systemAccount);
1467								boolean needsCacheClean = contact.setPhotoUri(phoneContact.getString("photouri"));
1468								needsCacheClean |= contact.setSystemName(phoneContact.getString("displayname"));
1469								if (needsCacheClean) {
1470									getAvatarService().clear(contact);
1471								}
1472								withSystemAccounts.remove(contact);
1473							}
1474							for (Contact contact : withSystemAccounts) {
1475								contact.setSystemAccount(null);
1476								boolean needsCacheClean = contact.setPhotoUri(null);
1477								needsCacheClean |= contact.setSystemName(null);
1478								if (needsCacheClean) {
1479									getAvatarService().clear(contact);
1480								}
1481							}
1482						}
1483						Log.d(Config.LOGTAG, "finished merging phone contacts");
1484						mShortcutService.refresh(mInitialAddressbookSyncCompleted.compareAndSet(false,true));
1485						updateAccountUi();
1486					}
1487				});
1488			}
1489		});
1490	}
1491
1492	public List<Conversation> getConversations() {
1493		return this.conversations;
1494	}
1495
1496	private void checkDeletedFiles(Conversation conversation) {
1497		conversation.findMessagesWithFiles(new Conversation.OnMessageFound() {
1498
1499			@Override
1500			public void onMessageFound(Message message) {
1501				if (!getFileBackend().isFileAvailable(message)) {
1502					message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
1503					final int s = message.getStatus();
1504					if (s == Message.STATUS_WAITING || s == Message.STATUS_OFFERED || s == Message.STATUS_UNSEND) {
1505						markMessage(message, Message.STATUS_SEND_FAILED);
1506					}
1507				}
1508			}
1509		});
1510	}
1511
1512	private void markFileDeleted(final String path) {
1513		Log.d(Config.LOGTAG,"deleted file "+path);
1514		for (Conversation conversation : getConversations()) {
1515			conversation.findMessagesWithFiles(new Conversation.OnMessageFound() {
1516				@Override
1517				public void onMessageFound(Message message) {
1518					DownloadableFile file = fileBackend.getFile(message);
1519					if (file.getAbsolutePath().equals(path)) {
1520						if (!file.exists()) {
1521							message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
1522							final int s = message.getStatus();
1523							if (s == Message.STATUS_WAITING || s == Message.STATUS_OFFERED || s == Message.STATUS_UNSEND) {
1524								markMessage(message, Message.STATUS_SEND_FAILED);
1525							} else {
1526								updateConversationUi();
1527							}
1528						} else {
1529							Log.d(Config.LOGTAG,"found matching message for file "+path+" but file still exists");
1530						}
1531					}
1532				}
1533			});
1534		}
1535	}
1536
1537	public void populateWithOrderedConversations(final List<Conversation> list) {
1538		populateWithOrderedConversations(list, true);
1539	}
1540
1541	public void populateWithOrderedConversations(final List<Conversation> list, boolean includeNoFileUpload) {
1542		list.clear();
1543		if (includeNoFileUpload) {
1544			list.addAll(getConversations());
1545		} else {
1546			for (Conversation conversation : getConversations()) {
1547				if (conversation.getMode() == Conversation.MODE_SINGLE
1548						|| conversation.getAccount().httpUploadAvailable()) {
1549					list.add(conversation);
1550				}
1551			}
1552		}
1553		try {
1554			Collections.sort(list);
1555		} catch (IllegalArgumentException e) {
1556			//ignore
1557		}
1558	}
1559
1560	public void loadMoreMessages(final Conversation conversation, final long timestamp, final OnMoreMessagesLoaded callback) {
1561		if (XmppConnectionService.this.getMessageArchiveService().queryInProgress(conversation, callback)) {
1562			return;
1563		} else if (timestamp == 0) {
1564			return;
1565		}
1566		Log.d(Config.LOGTAG, "load more messages for " + conversation.getName() + " prior to " + MessageGenerator.getTimestamp(timestamp));
1567		Runnable runnable = new Runnable() {
1568			@Override
1569			public void run() {
1570				final Account account = conversation.getAccount();
1571				List<Message> messages = databaseBackend.getMessages(conversation, 50, timestamp);
1572				if (messages.size() > 0) {
1573					conversation.addAll(0, messages);
1574					checkDeletedFiles(conversation);
1575					callback.onMoreMessagesLoaded(messages.size(), conversation);
1576				} else if (conversation.hasMessagesLeftOnServer()
1577						&& account.isOnlineAndConnected()
1578						&& conversation.getLastClearHistory().getTimestamp() == 0) {
1579					if ((conversation.getMode() == Conversation.MODE_SINGLE && account.getXmppConnection().getFeatures().mam())
1580							|| (conversation.getMode() == Conversation.MODE_MULTI && conversation.getMucOptions().mamSupport())) {
1581						MessageArchiveService.Query query = getMessageArchiveService().query(conversation, new MamReference(0), timestamp, false);
1582						if (query != null) {
1583							query.setCallback(callback);
1584							callback.informUser(R.string.fetching_history_from_server);
1585						} else {
1586							callback.informUser(R.string.not_fetching_history_retention_period);
1587						}
1588
1589					}
1590				}
1591			}
1592		};
1593		mDatabaseExecutor.execute(runnable);
1594	}
1595
1596	public List<Account> getAccounts() {
1597		return this.accounts;
1598	}
1599
1600	public List<Conversation> findAllConferencesWith(Contact contact) {
1601		ArrayList<Conversation> results = new ArrayList<>();
1602		for(Conversation conversation : conversations) {
1603			if (conversation.getMode() == Conversation.MODE_MULTI
1604					&& conversation.getMucOptions().isContactInRoom(contact)) {
1605				results.add(conversation);
1606			}
1607		}
1608		return results;
1609	}
1610
1611	public Conversation find(final Iterable<Conversation> haystack, final Contact contact) {
1612		for (final Conversation conversation : haystack) {
1613			if (conversation.getContact() == contact) {
1614				return conversation;
1615			}
1616		}
1617		return null;
1618	}
1619
1620	public Conversation find(final Iterable<Conversation> haystack, final Account account, final Jid jid) {
1621		if (jid == null) {
1622			return null;
1623		}
1624		for (final Conversation conversation : haystack) {
1625			if ((account == null || conversation.getAccount() == account)
1626					&& (conversation.getJid().toBareJid().equals(jid.toBareJid()))) {
1627				return conversation;
1628			}
1629		}
1630		return null;
1631	}
1632
1633	public Conversation findOrCreateConversation(Account account, Jid jid, boolean muc, final boolean async) {
1634		return this.findOrCreateConversation(account,jid,muc,false, async);
1635	}
1636
1637	public Conversation findOrCreateConversation(final Account account, final Jid jid, final boolean muc, final boolean joinAfterCreate, final boolean async) {
1638		return this.findOrCreateConversation(account, jid, muc, joinAfterCreate, null, async);
1639	}
1640
1641	public Conversation findOrCreateConversation(final Account account, final Jid jid, final boolean muc, final boolean joinAfterCreate, final MessageArchiveService.Query query, final boolean async) {
1642		synchronized (this.conversations) {
1643			Conversation conversation = find(account, jid);
1644			if (conversation != null) {
1645				return conversation;
1646			}
1647			conversation = databaseBackend.findConversation(account, jid);
1648			final boolean loadMessagesFromDb;
1649			if (conversation != null) {
1650				conversation.setStatus(Conversation.STATUS_AVAILABLE);
1651				conversation.setAccount(account);
1652				if (muc) {
1653					conversation.setMode(Conversation.MODE_MULTI);
1654					conversation.setContactJid(jid);
1655				} else {
1656					conversation.setMode(Conversation.MODE_SINGLE);
1657					conversation.setContactJid(jid.toBareJid());
1658				}
1659				databaseBackend.updateConversation(conversation);
1660				loadMessagesFromDb = conversation.messagesLoaded.compareAndSet(true,false);
1661			} else {
1662				String conversationName;
1663				Contact contact = account.getRoster().getContact(jid);
1664				if (contact != null) {
1665					conversationName = contact.getDisplayName();
1666				} else {
1667					conversationName = jid.getLocalpart();
1668				}
1669				if (muc) {
1670					conversation = new Conversation(conversationName, account, jid,
1671							Conversation.MODE_MULTI);
1672				} else {
1673					conversation = new Conversation(conversationName, account, jid.toBareJid(),
1674							Conversation.MODE_SINGLE);
1675				}
1676				this.databaseBackend.createConversation(conversation);
1677				loadMessagesFromDb = false;
1678			}
1679			final Conversation c = conversation;
1680			final Runnable runnable = new Runnable() {
1681				@Override
1682				public void run() {
1683					if (loadMessagesFromDb) {
1684						c.addAll(0, databaseBackend.getMessages(c, Config.PAGE_SIZE));
1685						updateConversationUi();
1686						c.messagesLoaded.set(true);
1687					}
1688					if (account.getXmppConnection() != null
1689							&& account.getXmppConnection().getFeatures().mam()
1690							&& !muc) {
1691						if (query == null) {
1692							mMessageArchiveService.query(c);
1693						} else {
1694							if (query.getConversation() == null) {
1695								mMessageArchiveService.query(c, query.getStart(),query.isCatchup());
1696							}
1697						}
1698					}
1699					checkDeletedFiles(c);
1700					if (joinAfterCreate) {
1701						joinMuc(c);
1702					}
1703				}
1704			};
1705			if (async) {
1706				mDatabaseExecutor.execute(runnable);
1707			} else {
1708				runnable.run();
1709			}
1710			this.conversations.add(conversation);
1711			updateConversationUi();
1712			return conversation;
1713		}
1714	}
1715
1716	public void archiveConversation(Conversation conversation) {
1717		getNotificationService().clear(conversation);
1718		conversation.setStatus(Conversation.STATUS_ARCHIVED);
1719		synchronized (this.conversations) {
1720			if (conversation.getMode() == Conversation.MODE_MULTI) {
1721				if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
1722					Bookmark bookmark = conversation.getBookmark();
1723					if (bookmark != null && bookmark.autojoin() && respectAutojoin()) {
1724						bookmark.setAutojoin(false);
1725						pushBookmarks(bookmark.getAccount());
1726					}
1727				}
1728				leaveMuc(conversation);
1729			} else {
1730				conversation.endOtrIfNeeded();
1731				if (conversation.getContact().getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
1732					Log.d(Config.LOGTAG, "Canceling presence request from " + conversation.getJid().toString());
1733					sendPresencePacket(
1734							conversation.getAccount(),
1735							mPresenceGenerator.stopPresenceUpdatesTo(conversation.getContact())
1736					);
1737				}
1738			}
1739			updateConversation(conversation);
1740			this.conversations.remove(conversation);
1741			updateConversationUi();
1742		}
1743	}
1744
1745	public void createAccount(final Account account) {
1746		account.initAccountServices(this);
1747		databaseBackend.createAccount(account);
1748		this.accounts.add(account);
1749		this.reconnectAccountInBackground(account);
1750		updateAccountUi();
1751		syncEnabledAccountSetting();
1752		toggleForegroundService();
1753	}
1754
1755	private void syncEnabledAccountSetting() {
1756		getPreferences().edit().putBoolean(EventReceiver.SETTING_ENABLED_ACCOUNTS,hasEnabledAccounts()).apply();
1757	}
1758
1759	public void createAccountFromKey(final String alias, final OnAccountCreated callback) {
1760		new Thread(new Runnable() {
1761			@Override
1762			public void run() {
1763				try {
1764					X509Certificate[] chain = KeyChain.getCertificateChain(XmppConnectionService.this, alias);
1765					Pair<Jid, String> info = CryptoHelper.extractJidAndName(chain[0]);
1766					if (info == null) {
1767						callback.informUser(R.string.certificate_does_not_contain_jid);
1768						return;
1769					}
1770					if (findAccountByJid(info.first) == null) {
1771						Account account = new Account(info.first, "");
1772						account.setPrivateKeyAlias(alias);
1773						account.setOption(Account.OPTION_DISABLED, true);
1774						account.setDisplayName(info.second);
1775						createAccount(account);
1776						callback.onAccountCreated(account);
1777						if (Config.X509_VERIFICATION) {
1778							try {
1779								getMemorizingTrustManager().getNonInteractive(account.getJid().getDomainpart()).checkClientTrusted(chain, "RSA");
1780							} catch (CertificateException e) {
1781								callback.informUser(R.string.certificate_chain_is_not_trusted);
1782							}
1783						}
1784					} else {
1785						callback.informUser(R.string.account_already_exists);
1786					}
1787				} catch (Exception e) {
1788					e.printStackTrace();
1789					callback.informUser(R.string.unable_to_parse_certificate);
1790				}
1791			}
1792		}).start();
1793
1794	}
1795
1796	public void updateKeyInAccount(final Account account, final String alias) {
1797		Log.d(Config.LOGTAG, account.getJid().toBareJid()+": update key in account " + alias);
1798		try {
1799			X509Certificate[] chain = KeyChain.getCertificateChain(XmppConnectionService.this, alias);
1800			Log.d(Config.LOGTAG,account.getJid().toBareJid()+" loaded certificate chain");
1801			Pair<Jid, String> info = CryptoHelper.extractJidAndName(chain[0]);
1802			if (account.getJid().toBareJid().equals(info.first)) {
1803				account.setPrivateKeyAlias(alias);
1804				account.setDisplayName(info.second);
1805				databaseBackend.updateAccount(account);
1806				if (Config.X509_VERIFICATION) {
1807					try {
1808						getMemorizingTrustManager().getNonInteractive().checkClientTrusted(chain, "RSA");
1809					} catch (CertificateException e) {
1810						showErrorToastInUi(R.string.certificate_chain_is_not_trusted);
1811					}
1812					account.getAxolotlService().regenerateKeys(true);
1813				}
1814			} else {
1815				showErrorToastInUi(R.string.jid_does_not_match_certificate);
1816			}
1817		} catch (Exception e) {
1818			e.printStackTrace();
1819		}
1820	}
1821
1822	public boolean updateAccount(final Account account) {
1823		if (databaseBackend.updateAccount(account)) {
1824			account.setShowErrorNotification(true);
1825			this.statusListener.onStatusChanged(account);
1826			databaseBackend.updateAccount(account);
1827			reconnectAccountInBackground(account);
1828			updateAccountUi();
1829			getNotificationService().updateErrorNotification();
1830			toggleForegroundService();
1831			syncEnabledAccountSetting();
1832			return true;
1833		} else {
1834			return false;
1835		}
1836	}
1837
1838	public void updateAccountPasswordOnServer(final Account account, final String newPassword, final OnAccountPasswordChanged callback) {
1839		final IqPacket iq = getIqGenerator().generateSetPassword(account, newPassword);
1840		sendIqPacket(account, iq, new OnIqPacketReceived() {
1841			@Override
1842			public void onIqPacketReceived(final Account account, final IqPacket packet) {
1843				if (packet.getType() == IqPacket.TYPE.RESULT) {
1844					account.setPassword(newPassword);
1845					account.setOption(Account.OPTION_MAGIC_CREATE, false);
1846					databaseBackend.updateAccount(account);
1847					callback.onPasswordChangeSucceeded();
1848				} else {
1849					callback.onPasswordChangeFailed();
1850				}
1851			}
1852		});
1853	}
1854
1855	public void deleteAccount(final Account account) {
1856		synchronized (this.conversations) {
1857			for (final Conversation conversation : conversations) {
1858				if (conversation.getAccount() == account) {
1859					if (conversation.getMode() == Conversation.MODE_MULTI) {
1860						leaveMuc(conversation);
1861					} else if (conversation.getMode() == Conversation.MODE_SINGLE) {
1862						conversation.endOtrIfNeeded();
1863					}
1864					conversations.remove(conversation);
1865				}
1866			}
1867			if (account.getXmppConnection() != null) {
1868				new Thread(new Runnable() {
1869					@Override
1870					public void run() {
1871						disconnect(account, true);
1872					}
1873				}).start();
1874			}
1875			Runnable runnable = new Runnable() {
1876				@Override
1877				public void run() {
1878					if (!databaseBackend.deleteAccount(account)) {
1879						Log.d(Config.LOGTAG,account.getJid().toBareJid()+": unable to delete account");
1880					}
1881				}
1882			};
1883			mDatabaseExecutor.execute(runnable);
1884			this.accounts.remove(account);
1885			updateAccountUi();
1886			getNotificationService().updateErrorNotification();
1887		}
1888	}
1889
1890	public void setOnConversationListChangedListener(OnConversationUpdate listener) {
1891		synchronized (this) {
1892			this.mLastActivity = System.currentTimeMillis();
1893			if (checkListeners()) {
1894				switchToForeground();
1895			}
1896			this.mOnConversationUpdate = listener;
1897			this.mNotificationService.setIsInForeground(true);
1898			if (this.convChangedListenerCount < 2) {
1899				this.convChangedListenerCount++;
1900			}
1901		}
1902	}
1903
1904	public void removeOnConversationListChangedListener() {
1905		synchronized (this) {
1906			this.convChangedListenerCount--;
1907			if (this.convChangedListenerCount <= 0) {
1908				this.convChangedListenerCount = 0;
1909				this.mOnConversationUpdate = null;
1910				this.mNotificationService.setIsInForeground(false);
1911				if (checkListeners()) {
1912					switchToBackground();
1913				}
1914			}
1915		}
1916	}
1917
1918	public void setOnShowErrorToastListener(OnShowErrorToast onShowErrorToast) {
1919		synchronized (this) {
1920			if (checkListeners()) {
1921				switchToForeground();
1922			}
1923			this.mOnShowErrorToast = onShowErrorToast;
1924			if (this.showErrorToastListenerCount < 2) {
1925				this.showErrorToastListenerCount++;
1926			}
1927		}
1928		this.mOnShowErrorToast = onShowErrorToast;
1929	}
1930
1931	public void removeOnShowErrorToastListener() {
1932		synchronized (this) {
1933			this.showErrorToastListenerCount--;
1934			if (this.showErrorToastListenerCount <= 0) {
1935				this.showErrorToastListenerCount = 0;
1936				this.mOnShowErrorToast = null;
1937				if (checkListeners()) {
1938					switchToBackground();
1939				}
1940			}
1941		}
1942	}
1943
1944	public void setOnAccountListChangedListener(OnAccountUpdate listener) {
1945		synchronized (this) {
1946			if (checkListeners()) {
1947				switchToForeground();
1948			}
1949			this.mOnAccountUpdate = listener;
1950			if (this.accountChangedListenerCount < 2) {
1951				this.accountChangedListenerCount++;
1952			}
1953		}
1954	}
1955
1956	public void removeOnAccountListChangedListener() {
1957		synchronized (this) {
1958			this.accountChangedListenerCount--;
1959			if (this.accountChangedListenerCount <= 0) {
1960				this.mOnAccountUpdate = null;
1961				this.accountChangedListenerCount = 0;
1962				if (checkListeners()) {
1963					switchToBackground();
1964				}
1965			}
1966		}
1967	}
1968
1969	public void setOnCaptchaRequestedListener(OnCaptchaRequested listener) {
1970		synchronized (this) {
1971			if (checkListeners()) {
1972				switchToForeground();
1973			}
1974			this.mOnCaptchaRequested = listener;
1975			if (this.captchaRequestedListenerCount < 2) {
1976				this.captchaRequestedListenerCount++;
1977			}
1978		}
1979	}
1980
1981	public void removeOnCaptchaRequestedListener() {
1982		synchronized (this) {
1983			this.captchaRequestedListenerCount--;
1984			if (this.captchaRequestedListenerCount <= 0) {
1985				this.mOnCaptchaRequested = null;
1986				this.captchaRequestedListenerCount = 0;
1987				if (checkListeners()) {
1988					switchToBackground();
1989				}
1990			}
1991		}
1992	}
1993
1994	public void setOnRosterUpdateListener(final OnRosterUpdate listener) {
1995		synchronized (this) {
1996			if (checkListeners()) {
1997				switchToForeground();
1998			}
1999			this.mOnRosterUpdate = listener;
2000			if (this.rosterChangedListenerCount < 2) {
2001				this.rosterChangedListenerCount++;
2002			}
2003		}
2004	}
2005
2006	public void removeOnRosterUpdateListener() {
2007		synchronized (this) {
2008			this.rosterChangedListenerCount--;
2009			if (this.rosterChangedListenerCount <= 0) {
2010				this.rosterChangedListenerCount = 0;
2011				this.mOnRosterUpdate = null;
2012				if (checkListeners()) {
2013					switchToBackground();
2014				}
2015			}
2016		}
2017	}
2018
2019	public void setOnUpdateBlocklistListener(final OnUpdateBlocklist listener) {
2020		synchronized (this) {
2021			if (checkListeners()) {
2022				switchToForeground();
2023			}
2024			this.mOnUpdateBlocklist = listener;
2025			if (this.updateBlocklistListenerCount < 2) {
2026				this.updateBlocklistListenerCount++;
2027			}
2028		}
2029	}
2030
2031	public void removeOnUpdateBlocklistListener() {
2032		synchronized (this) {
2033			this.updateBlocklistListenerCount--;
2034			if (this.updateBlocklistListenerCount <= 0) {
2035				this.updateBlocklistListenerCount = 0;
2036				this.mOnUpdateBlocklist = null;
2037				if (checkListeners()) {
2038					switchToBackground();
2039				}
2040			}
2041		}
2042	}
2043
2044	public void setOnKeyStatusUpdatedListener(final OnKeyStatusUpdated listener) {
2045		synchronized (this) {
2046			if (checkListeners()) {
2047				switchToForeground();
2048			}
2049			this.mOnKeyStatusUpdated = listener;
2050			if (this.keyStatusUpdatedListenerCount < 2) {
2051				this.keyStatusUpdatedListenerCount++;
2052			}
2053		}
2054	}
2055
2056	public void removeOnNewKeysAvailableListener() {
2057		synchronized (this) {
2058			this.keyStatusUpdatedListenerCount--;
2059			if (this.keyStatusUpdatedListenerCount <= 0) {
2060				this.keyStatusUpdatedListenerCount = 0;
2061				this.mOnKeyStatusUpdated = null;
2062				if (checkListeners()) {
2063					switchToBackground();
2064				}
2065			}
2066		}
2067	}
2068
2069	public void setOnMucRosterUpdateListener(OnMucRosterUpdate listener) {
2070		synchronized (this) {
2071			if (checkListeners()) {
2072				switchToForeground();
2073			}
2074			this.mOnMucRosterUpdate = listener;
2075			if (this.mucRosterChangedListenerCount < 2) {
2076				this.mucRosterChangedListenerCount++;
2077			}
2078		}
2079	}
2080
2081	public void removeOnMucRosterUpdateListener() {
2082		synchronized (this) {
2083			this.mucRosterChangedListenerCount--;
2084			if (this.mucRosterChangedListenerCount <= 0) {
2085				this.mucRosterChangedListenerCount = 0;
2086				this.mOnMucRosterUpdate = null;
2087				if (checkListeners()) {
2088					switchToBackground();
2089				}
2090			}
2091		}
2092	}
2093
2094	public boolean checkListeners() {
2095		return (this.mOnAccountUpdate == null
2096				&& this.mOnConversationUpdate == null
2097				&& this.mOnRosterUpdate == null
2098				&& this.mOnCaptchaRequested == null
2099				&& this.mOnUpdateBlocklist == null
2100				&& this.mOnShowErrorToast == null
2101				&& this.mOnKeyStatusUpdated == null);
2102	}
2103
2104	private void switchToForeground() {
2105		final boolean broadcastLastActivity = broadcastLastActivity();
2106		for (Conversation conversation : getConversations()) {
2107			if (conversation.getMode() == Conversation.MODE_MULTI) {
2108				conversation.getMucOptions().resetChatState();
2109			} else {
2110				conversation.setIncomingChatState(Config.DEFAULT_CHATSTATE);
2111			}
2112		}
2113		for (Account account : getAccounts()) {
2114			if (account.getStatus() == Account.State.ONLINE) {
2115				account.deactivateGracePeriod();
2116				final XmppConnection connection = account.getXmppConnection();
2117				if (connection != null ) {
2118					if (connection.getFeatures().csi()) {
2119						connection.sendActive();
2120					}
2121					if (broadcastLastActivity) {
2122						sendPresence(account, false); //send new presence but don't include idle because we are not
2123					}
2124				}
2125			}
2126		}
2127		Log.d(Config.LOGTAG, "app switched into foreground");
2128	}
2129
2130	private void switchToBackground() {
2131		final boolean broadcastLastActivity = broadcastLastActivity();
2132		for (Account account : getAccounts()) {
2133			if (account.getStatus() == Account.State.ONLINE) {
2134				XmppConnection connection = account.getXmppConnection();
2135				if (connection != null) {
2136					if (broadcastLastActivity) {
2137						sendPresence(account, true);
2138					}
2139					if (connection.getFeatures().csi()) {
2140						connection.sendInactive();
2141					}
2142				}
2143			}
2144		}
2145		this.mNotificationService.setIsInForeground(false);
2146		Log.d(Config.LOGTAG, "app switched into background");
2147	}
2148
2149	private void connectMultiModeConversations(Account account) {
2150		List<Conversation> conversations = getConversations();
2151		for (Conversation conversation : conversations) {
2152			if (conversation.getMode() == Conversation.MODE_MULTI && conversation.getAccount() == account) {
2153				joinMuc(conversation);
2154			}
2155		}
2156	}
2157
2158	public void joinMuc(Conversation conversation) {
2159		joinMuc(conversation,null, false);
2160	}
2161
2162	public void joinMuc(Conversation conversation, boolean followedInvite) {
2163		joinMuc(conversation, null, followedInvite);
2164	}
2165
2166	private void joinMuc(Conversation conversation, final OnConferenceJoined onConferenceJoined) {
2167		joinMuc(conversation,onConferenceJoined,false);
2168	}
2169
2170	private void joinMuc(Conversation conversation, final OnConferenceJoined onConferenceJoined, final boolean followedInvite) {
2171		Account account = conversation.getAccount();
2172		account.pendingConferenceJoins.remove(conversation);
2173		account.pendingConferenceLeaves.remove(conversation);
2174		if (account.getStatus() == Account.State.ONLINE) {
2175			sendPresencePacket(account, mPresenceGenerator.leave(conversation.getMucOptions()));
2176			conversation.resetMucOptions();
2177			if (onConferenceJoined != null) {
2178				conversation.getMucOptions().flagNoAutoPushConfiguration();
2179			}
2180			conversation.setHasMessagesLeftOnServer(false);
2181			fetchConferenceConfiguration(conversation, new OnConferenceConfigurationFetched() {
2182
2183				private void join(Conversation conversation) {
2184					Account account = conversation.getAccount();
2185					final MucOptions mucOptions = conversation.getMucOptions();
2186					final Jid joinJid = mucOptions.getSelf().getFullJid();
2187					Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": joining conversation " + joinJid.toString());
2188					PresencePacket packet = mPresenceGenerator.selfPresence(account, Presence.Status.ONLINE, mucOptions.nonanonymous() || onConferenceJoined != null);
2189					packet.setTo(joinJid);
2190					Element x = packet.addChild("x", "http://jabber.org/protocol/muc");
2191					if (conversation.getMucOptions().getPassword() != null) {
2192						x.addChild("password").setContent(mucOptions.getPassword());
2193					}
2194
2195					if (mucOptions.mamSupport()) {
2196						// Use MAM instead of the limited muc history to get history
2197						x.addChild("history").setAttribute("maxchars", "0");
2198					} else {
2199						// Fallback to muc history
2200						x.addChild("history").setAttribute("since", PresenceGenerator.getTimestamp(conversation.getLastMessageTransmitted().getTimestamp()));
2201					}
2202					sendPresencePacket(account, packet);
2203					if (onConferenceJoined != null) {
2204						onConferenceJoined.onConferenceJoined(conversation);
2205					}
2206					if (!joinJid.equals(conversation.getJid())) {
2207						conversation.setContactJid(joinJid);
2208						databaseBackend.updateConversation(conversation);
2209					}
2210
2211					if (mucOptions.mamSupport()) {
2212						getMessageArchiveService().catchupMUC(conversation);
2213					}
2214					if (mucOptions.membersOnly() && mucOptions.nonanonymous()) {
2215						fetchConferenceMembers(conversation);
2216						if (followedInvite && conversation.getBookmark() == null) {
2217							saveConversationAsBookmark(conversation,null);
2218						}
2219					}
2220					sendUnsentMessages(conversation);
2221				}
2222
2223				@Override
2224				public void onConferenceConfigurationFetched(Conversation conversation) {
2225					join(conversation);
2226				}
2227
2228				@Override
2229				public void onFetchFailed(final Conversation conversation, Element error) {
2230					if (error != null && "remote-server-not-found".equals(error.getName())) {
2231						conversation.getMucOptions().setError(MucOptions.Error.SERVER_NOT_FOUND);
2232						updateConversationUi();
2233					} else {
2234						join(conversation);
2235						fetchConferenceConfiguration(conversation);
2236					}
2237				}
2238			});
2239			updateConversationUi();
2240		} else {
2241			account.pendingConferenceJoins.add(conversation);
2242			conversation.resetMucOptions();
2243			conversation.setHasMessagesLeftOnServer(false);
2244			updateConversationUi();
2245		}
2246	}
2247
2248	private void fetchConferenceMembers(final Conversation conversation) {
2249		final Account account = conversation.getAccount();
2250		final AxolotlService axolotlService = account.getAxolotlService();
2251		final String[] affiliations = {"member","admin","owner"};
2252		OnIqPacketReceived callback = new OnIqPacketReceived() {
2253
2254			private int i = 0;
2255			private boolean success = true;
2256
2257			@Override
2258			public void onIqPacketReceived(Account account, IqPacket packet) {
2259
2260				Element query = packet.query("http://jabber.org/protocol/muc#admin");
2261				if (packet.getType() == IqPacket.TYPE.RESULT && query != null) {
2262					for(Element child : query.getChildren()) {
2263						if ("item".equals(child.getName())) {
2264							MucOptions.User user = AbstractParser.parseItem(conversation,child);
2265							if (!user.realJidMatchesAccount()) {
2266								boolean isNew = conversation.getMucOptions().updateUser(user);
2267								if (isNew && user.getRealJid() != null && axolotlService.hasEmptyDeviceList(user.getRealJid())) {
2268									axolotlService.fetchDeviceIds(user.getRealJid());
2269								}
2270							}
2271						}
2272					}
2273				} else {
2274					success = false;
2275					Log.d(Config.LOGTAG,account.getJid().toBareJid()+": could not request affiliation "+affiliations[i]+" in "+conversation.getJid().toBareJid());
2276				}
2277				++i;
2278				if (i >= affiliations.length) {
2279					List<Jid> members = conversation.getMucOptions().getMembers();
2280					if (success) {
2281						List<Jid> cryptoTargets = conversation.getAcceptedCryptoTargets();
2282						boolean changed = false;
2283						for(ListIterator<Jid> iterator = cryptoTargets.listIterator(); iterator.hasNext();) {
2284							Jid jid = iterator.next();
2285							if (!members.contains(jid)) {
2286								iterator.remove();
2287								Log.d(Config.LOGTAG,account.getJid().toBareJid()+": removed "+jid+" from crypto targets of "+conversation.getName());
2288								changed = true;
2289							}
2290						}
2291						if (changed) {
2292							conversation.setAcceptedCryptoTargets(cryptoTargets);
2293							updateConversation(conversation);
2294						}
2295					}
2296					Log.d(Config.LOGTAG,account.getJid().toBareJid()+": retrieved members for "+conversation.getJid().toBareJid()+": "+conversation.getMucOptions().getMembers());
2297					getAvatarService().clear(conversation);
2298					updateMucRosterUi();
2299					updateConversationUi();
2300				}
2301			}
2302		};
2303		for(String affiliation : affiliations) {
2304			sendIqPacket(account, mIqGenerator.queryAffiliation(conversation, affiliation), callback);
2305		}
2306		Log.d(Config.LOGTAG,account.getJid().toBareJid()+": fetching members for "+conversation.getName());
2307	}
2308
2309	public void providePasswordForMuc(Conversation conversation, String password) {
2310		if (conversation.getMode() == Conversation.MODE_MULTI) {
2311			conversation.getMucOptions().setPassword(password);
2312			if (conversation.getBookmark() != null) {
2313				if (respectAutojoin()) {
2314					conversation.getBookmark().setAutojoin(true);
2315				}
2316				pushBookmarks(conversation.getAccount());
2317			}
2318			updateConversation(conversation);
2319			joinMuc(conversation);
2320		}
2321	}
2322
2323	private boolean hasEnabledAccounts() {
2324		for(Account account : this.accounts) {
2325			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
2326				return true;
2327			}
2328		}
2329		return false;
2330	}
2331
2332	public void renameInMuc(final Conversation conversation, final String nick, final UiCallback<Conversation> callback) {
2333		final MucOptions options = conversation.getMucOptions();
2334		final Jid joinJid = options.createJoinJid(nick);
2335		if (options.online()) {
2336			Account account = conversation.getAccount();
2337			options.setOnRenameListener(new OnRenameListener() {
2338
2339				@Override
2340				public void onSuccess() {
2341					conversation.setContactJid(joinJid);
2342					databaseBackend.updateConversation(conversation);
2343					Bookmark bookmark = conversation.getBookmark();
2344					if (bookmark != null) {
2345						bookmark.setNick(nick);
2346						pushBookmarks(bookmark.getAccount());
2347					}
2348					callback.success(conversation);
2349				}
2350
2351				@Override
2352				public void onFailure() {
2353					callback.error(R.string.nick_in_use, conversation);
2354				}
2355			});
2356
2357			PresencePacket packet = new PresencePacket();
2358			packet.setTo(joinJid);
2359			packet.setFrom(conversation.getAccount().getJid());
2360
2361			String sig = account.getPgpSignature();
2362			if (sig != null) {
2363				packet.addChild("status").setContent("online");
2364				packet.addChild("x", "jabber:x:signed").setContent(sig);
2365			}
2366			sendPresencePacket(account, packet);
2367		} else {
2368			conversation.setContactJid(joinJid);
2369			databaseBackend.updateConversation(conversation);
2370			if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
2371				Bookmark bookmark = conversation.getBookmark();
2372				if (bookmark != null) {
2373					bookmark.setNick(nick);
2374					pushBookmarks(bookmark.getAccount());
2375				}
2376				joinMuc(conversation);
2377			}
2378		}
2379	}
2380
2381	public void leaveMuc(Conversation conversation) {
2382		leaveMuc(conversation, false);
2383	}
2384
2385	private void leaveMuc(Conversation conversation, boolean now) {
2386		Account account = conversation.getAccount();
2387		account.pendingConferenceJoins.remove(conversation);
2388		account.pendingConferenceLeaves.remove(conversation);
2389		if (account.getStatus() == Account.State.ONLINE || now) {
2390			sendPresencePacket(conversation.getAccount(), mPresenceGenerator.leave(conversation.getMucOptions()));
2391			conversation.getMucOptions().setOffline();
2392			conversation.deregisterWithBookmark();
2393			Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid() + ": leaving muc " + conversation.getJid());
2394		} else {
2395			account.pendingConferenceLeaves.add(conversation);
2396		}
2397	}
2398
2399	public String findConferenceServer(final Account account) {
2400		String server;
2401		if (account.getXmppConnection() != null) {
2402			server = account.getXmppConnection().getMucServer();
2403			if (server != null) {
2404				return server;
2405			}
2406		}
2407		for (Account other : getAccounts()) {
2408			if (other != account && other.getXmppConnection() != null) {
2409				server = other.getXmppConnection().getMucServer();
2410				if (server != null) {
2411					return server;
2412				}
2413			}
2414		}
2415		return null;
2416	}
2417
2418	public boolean createAdhocConference(final Account account,
2419									  final String subject,
2420									  final Iterable<Jid> jids,
2421									  final UiCallback<Conversation> callback) {
2422		Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": creating adhoc conference with " + jids.toString());
2423		if (account.getStatus() == Account.State.ONLINE) {
2424			try {
2425				String server = findConferenceServer(account);
2426				if (server == null) {
2427					if (callback != null) {
2428						callback.error(R.string.no_conference_server_found, null);
2429					}
2430					return false;
2431				}
2432				final Jid jid = Jid.fromParts(new BigInteger(64, getRNG()).toString(Character.MAX_RADIX), server, null);
2433				final Conversation conversation = findOrCreateConversation(account, jid, true, false, true);
2434				joinMuc(conversation, new OnConferenceJoined() {
2435					@Override
2436					public void onConferenceJoined(final Conversation conversation) {
2437						pushConferenceConfiguration(conversation, IqGenerator.defaultRoomConfiguration(), new OnConfigurationPushed() {
2438							@Override
2439							public void onPushSucceeded() {
2440								if (subject != null && !subject.trim().isEmpty()) {
2441									pushSubjectToConference(conversation, subject.trim());
2442								}
2443								for (Jid invite : jids) {
2444									invite(conversation, invite);
2445								}
2446								if (account.countPresences() > 1) {
2447									directInvite(conversation, account.getJid().toBareJid());
2448								}
2449								saveConversationAsBookmark(conversation, subject);
2450								if (callback != null) {
2451									callback.success(conversation);
2452								}
2453							}
2454
2455							@Override
2456							public void onPushFailed() {
2457								archiveConversation(conversation);
2458								if (callback != null) {
2459									callback.error(R.string.conference_creation_failed, conversation);
2460								}
2461							}
2462						});
2463					}
2464				});
2465				return true;
2466			} catch (InvalidJidException e) {
2467				if (callback != null) {
2468					callback.error(R.string.conference_creation_failed, null);
2469				}
2470				return false;
2471			}
2472		} else {
2473			if (callback != null) {
2474				callback.error(R.string.not_connected_try_again, null);
2475			}
2476			return false;
2477		}
2478	}
2479
2480	public void fetchConferenceConfiguration(final Conversation conversation) {
2481		fetchConferenceConfiguration(conversation, null);
2482	}
2483
2484	public void fetchConferenceConfiguration(final Conversation conversation, final OnConferenceConfigurationFetched callback) {
2485		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
2486		request.setTo(conversation.getJid().toBareJid());
2487		request.query("http://jabber.org/protocol/disco#info");
2488		sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
2489			@Override
2490			public void onIqPacketReceived(Account account, IqPacket packet) {
2491				Element query = packet.findChild("query","http://jabber.org/protocol/disco#info");
2492				if (packet.getType() == IqPacket.TYPE.RESULT && query != null) {
2493					ArrayList<String> features = new ArrayList<>();
2494					for (Element child : query.getChildren()) {
2495						if (child != null && child.getName().equals("feature")) {
2496							String var = child.getAttribute("var");
2497							if (var != null) {
2498								features.add(var);
2499							}
2500						}
2501					}
2502					Element form = query.findChild("x", "jabber:x:data");
2503					if (form != null) {
2504						conversation.getMucOptions().updateFormData(Data.parse(form));
2505					}
2506					conversation.getMucOptions().updateFeatures(features);
2507					if (callback != null) {
2508						callback.onConferenceConfigurationFetched(conversation);
2509					}
2510					Log.d(Config.LOGTAG,account.getJid().toBareJid()+": fetched muc configuration for "+conversation.getJid().toBareJid()+" - "+features.toString());
2511					updateConversationUi();
2512				} else if (packet.getType() == IqPacket.TYPE.ERROR) {
2513					if (callback != null) {
2514						callback.onFetchFailed(conversation, packet.getError());
2515					}
2516				}
2517			}
2518		});
2519	}
2520
2521	public void pushNodeConfiguration(Account account, final String node, final Bundle options, final OnConfigurationPushed callback) {
2522		pushNodeConfiguration(account,account.getJid().toBareJid(),node,options,callback);
2523	}
2524
2525	public void pushNodeConfiguration(Account account, final Jid jid, final String node, final Bundle options, final OnConfigurationPushed callback) {
2526		sendIqPacket(account, mIqGenerator.requestPubsubConfiguration(jid,node), new OnIqPacketReceived() {
2527			@Override
2528			public void onIqPacketReceived(Account account, IqPacket packet) {
2529				if (packet.getType() == IqPacket.TYPE.RESULT) {
2530					Element pubsub = packet.findChild("pubsub","http://jabber.org/protocol/pubsub#owner");
2531					Element configuration = pubsub == null ? null : pubsub.findChild("configure");
2532					Element x = configuration == null ? null : configuration.findChild("x","jabber:x:data");
2533					if (x != null) {
2534						Data data = Data.parse(x);
2535						data.submit(options);
2536						sendIqPacket(account, mIqGenerator.publishPubsubConfiguration(jid, node, data), new OnIqPacketReceived() {
2537							@Override
2538							public void onIqPacketReceived(Account account, IqPacket packet) {
2539								if (packet.getType() == IqPacket.TYPE.RESULT && callback != null) {
2540									callback.onPushSucceeded();
2541								} else {
2542									Log.d(Config.LOGTAG,packet.toString());
2543								}
2544							}
2545						});
2546					} else if (callback !=null) {
2547						callback.onPushFailed();
2548					}
2549				} else if (callback != null){
2550					callback.onPushFailed();
2551				}
2552			}
2553		});
2554	}
2555
2556	public void pushConferenceConfiguration(final Conversation conversation, final Bundle options, final OnConfigurationPushed callback) {
2557		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
2558		request.setTo(conversation.getJid().toBareJid());
2559		request.query("http://jabber.org/protocol/muc#owner");
2560		sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
2561			@Override
2562			public void onIqPacketReceived(Account account, IqPacket packet) {
2563				if (packet.getType() == IqPacket.TYPE.RESULT) {
2564					Data data = Data.parse(packet.query().findChild("x", "jabber:x:data"));
2565					data.submit(options);
2566					IqPacket set = new IqPacket(IqPacket.TYPE.SET);
2567					set.setTo(conversation.getJid().toBareJid());
2568					set.query("http://jabber.org/protocol/muc#owner").addChild(data);
2569					sendIqPacket(account, set, new OnIqPacketReceived() {
2570						@Override
2571						public void onIqPacketReceived(Account account, IqPacket packet) {
2572							if (callback != null) {
2573								if (packet.getType() == IqPacket.TYPE.RESULT) {
2574									callback.onPushSucceeded();
2575								} else {
2576									callback.onPushFailed();
2577								}
2578							}
2579						}
2580					});
2581				} else {
2582					if (callback != null) {
2583						callback.onPushFailed();
2584					}
2585				}
2586			}
2587		});
2588	}
2589
2590	public void pushSubjectToConference(final Conversation conference, final String subject) {
2591		MessagePacket packet = this.getMessageGenerator().conferenceSubject(conference, subject);
2592		this.sendMessagePacket(conference.getAccount(), packet);
2593		final MucOptions mucOptions = conference.getMucOptions();
2594		final MucOptions.User self = mucOptions.getSelf();
2595		if (!mucOptions.persistent() && self.getAffiliation().ranks(MucOptions.Affiliation.OWNER)) {
2596			Bundle options = new Bundle();
2597			options.putString("muc#roomconfig_persistentroom", "1");
2598			this.pushConferenceConfiguration(conference, options, null);
2599		}
2600	}
2601
2602	public void changeAffiliationInConference(final Conversation conference, Jid user, final MucOptions.Affiliation affiliation, final OnAffiliationChanged callback) {
2603		final Jid jid = user.toBareJid();
2604		IqPacket request = this.mIqGenerator.changeAffiliation(conference, jid, affiliation.toString());
2605		sendIqPacket(conference.getAccount(), request, new OnIqPacketReceived() {
2606			@Override
2607			public void onIqPacketReceived(Account account, IqPacket packet) {
2608				if (packet.getType() == IqPacket.TYPE.RESULT) {
2609					conference.getMucOptions().changeAffiliation(jid, affiliation);
2610					getAvatarService().clear(conference);
2611					callback.onAffiliationChangedSuccessful(jid);
2612				} else {
2613					callback.onAffiliationChangeFailed(jid, R.string.could_not_change_affiliation);
2614				}
2615			}
2616		});
2617	}
2618
2619	public void changeAffiliationsInConference(final Conversation conference, MucOptions.Affiliation before, MucOptions.Affiliation after) {
2620		List<Jid> jids = new ArrayList<>();
2621		for (MucOptions.User user : conference.getMucOptions().getUsers()) {
2622			if (user.getAffiliation() == before && user.getRealJid() != null) {
2623				jids.add(user.getRealJid());
2624			}
2625		}
2626		IqPacket request = this.mIqGenerator.changeAffiliation(conference, jids, after.toString());
2627		sendIqPacket(conference.getAccount(), request, mDefaultIqHandler);
2628	}
2629
2630	public void changeRoleInConference(final Conversation conference, final String nick, MucOptions.Role role, final OnRoleChanged callback) {
2631		IqPacket request = this.mIqGenerator.changeRole(conference, nick, role.toString());
2632		Log.d(Config.LOGTAG, request.toString());
2633		sendIqPacket(conference.getAccount(), request, new OnIqPacketReceived() {
2634			@Override
2635			public void onIqPacketReceived(Account account, IqPacket packet) {
2636				Log.d(Config.LOGTAG, packet.toString());
2637				if (packet.getType() == IqPacket.TYPE.RESULT) {
2638					callback.onRoleChangedSuccessful(nick);
2639				} else {
2640					callback.onRoleChangeFailed(nick, R.string.could_not_change_role);
2641				}
2642			}
2643		});
2644	}
2645
2646	private void disconnect(Account account, boolean force) {
2647		if ((account.getStatus() == Account.State.ONLINE)
2648				|| (account.getStatus() == Account.State.DISABLED)) {
2649			final XmppConnection connection = account.getXmppConnection();
2650			if (!force) {
2651				List<Conversation> conversations = getConversations();
2652				for (Conversation conversation : conversations) {
2653					if (conversation.getAccount() == account) {
2654						if (conversation.getMode() == Conversation.MODE_MULTI) {
2655							leaveMuc(conversation, true);
2656						} else {
2657							if (conversation.endOtrIfNeeded()) {
2658								Log.d(Config.LOGTAG, account.getJid().toBareJid()
2659										+ ": ended otr session with "
2660										+ conversation.getJid());
2661							}
2662						}
2663					}
2664				}
2665				sendOfflinePresence(account);
2666			}
2667			connection.disconnect(force);
2668		}
2669	}
2670
2671	@Override
2672	public IBinder onBind(Intent intent) {
2673		return mBinder;
2674	}
2675
2676	public void updateMessage(Message message) {
2677		databaseBackend.updateMessage(message);
2678		updateConversationUi();
2679	}
2680
2681	public void updateMessage(Message message, String uuid) {
2682		databaseBackend.updateMessage(message, uuid);
2683		updateConversationUi();
2684	}
2685
2686	protected void syncDirtyContacts(Account account) {
2687		for (Contact contact : account.getRoster().getContacts()) {
2688			if (contact.getOption(Contact.Options.DIRTY_PUSH)) {
2689				pushContactToServer(contact);
2690			}
2691			if (contact.getOption(Contact.Options.DIRTY_DELETE)) {
2692				deleteContactOnServer(contact);
2693			}
2694		}
2695	}
2696
2697	public void createContact(Contact contact) {
2698		boolean autoGrant = getBooleanPreference("grant_new_contacts", R.bool.grant_new_contacts);
2699		if (autoGrant) {
2700			contact.setOption(Contact.Options.PREEMPTIVE_GRANT);
2701			contact.setOption(Contact.Options.ASKING);
2702		}
2703		pushContactToServer(contact);
2704	}
2705
2706	public void onOtrSessionEstablished(Conversation conversation) {
2707		final Account account = conversation.getAccount();
2708		final Session otrSession = conversation.getOtrSession();
2709		Log.d(Config.LOGTAG,
2710				account.getJid().toBareJid() + " otr session established with "
2711						+ conversation.getJid() + "/"
2712						+ otrSession.getSessionID().getUserID());
2713		conversation.findUnsentMessagesWithEncryption(Message.ENCRYPTION_OTR, new Conversation.OnMessageFound() {
2714
2715			@Override
2716			public void onMessageFound(Message message) {
2717				SessionID id = otrSession.getSessionID();
2718				try {
2719					message.setCounterpart(Jid.fromString(id.getAccountID() + "/" + id.getUserID()));
2720				} catch (InvalidJidException e) {
2721					return;
2722				}
2723				if (message.needsUploading()) {
2724					mJingleConnectionManager.createNewConnection(message);
2725				} else {
2726					MessagePacket outPacket = mMessageGenerator.generateOtrChat(message);
2727					if (outPacket != null) {
2728						mMessageGenerator.addDelay(outPacket, message.getTimeSent());
2729						message.setStatus(Message.STATUS_SEND);
2730						databaseBackend.updateMessage(message);
2731						sendMessagePacket(account, outPacket);
2732					}
2733				}
2734				updateConversationUi();
2735			}
2736		});
2737	}
2738
2739	public boolean renewSymmetricKey(Conversation conversation) {
2740		Account account = conversation.getAccount();
2741		byte[] symmetricKey = new byte[32];
2742		this.mRandom.nextBytes(symmetricKey);
2743		Session otrSession = conversation.getOtrSession();
2744		if (otrSession != null) {
2745			MessagePacket packet = new MessagePacket();
2746			packet.setType(MessagePacket.TYPE_CHAT);
2747			packet.setFrom(account.getJid());
2748			MessageGenerator.addMessageHints(packet);
2749			packet.setAttribute("to", otrSession.getSessionID().getAccountID() + "/"
2750					+ otrSession.getSessionID().getUserID());
2751			try {
2752				packet.setBody(otrSession
2753						.transformSending(CryptoHelper.FILETRANSFER
2754								+ CryptoHelper.bytesToHex(symmetricKey))[0]);
2755				sendMessagePacket(account, packet);
2756				conversation.setSymmetricKey(symmetricKey);
2757				return true;
2758			} catch (OtrException e) {
2759				return false;
2760			}
2761		}
2762		return false;
2763	}
2764
2765	public void pushContactToServer(final Contact contact) {
2766		contact.resetOption(Contact.Options.DIRTY_DELETE);
2767		contact.setOption(Contact.Options.DIRTY_PUSH);
2768		final Account account = contact.getAccount();
2769		if (account.getStatus() == Account.State.ONLINE) {
2770			final boolean ask = contact.getOption(Contact.Options.ASKING);
2771			final boolean sendUpdates = contact
2772					.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)
2773					&& contact.getOption(Contact.Options.PREEMPTIVE_GRANT);
2774			final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
2775			iq.query(Namespace.ROSTER).addChild(contact.asElement());
2776			account.getXmppConnection().sendIqPacket(iq, mDefaultIqHandler);
2777			if (sendUpdates) {
2778				sendPresencePacket(account,
2779						mPresenceGenerator.sendPresenceUpdatesTo(contact));
2780			}
2781			if (ask) {
2782				sendPresencePacket(account,
2783						mPresenceGenerator.requestPresenceUpdatesFrom(contact));
2784			}
2785		}
2786	}
2787
2788	public void publishAvatar(Account account, Uri image, UiCallback<Avatar> callback) {
2789		final Bitmap.CompressFormat format = Config.AVATAR_FORMAT;
2790		final int size = Config.AVATAR_SIZE;
2791		final Avatar avatar = getFileBackend().getPepAvatar(image, size, format);
2792		if (avatar != null) {
2793			avatar.height = size;
2794			avatar.width = size;
2795			if (format.equals(Bitmap.CompressFormat.WEBP)) {
2796				avatar.type = "image/webp";
2797			} else if (format.equals(Bitmap.CompressFormat.JPEG)) {
2798				avatar.type = "image/jpeg";
2799			} else if (format.equals(Bitmap.CompressFormat.PNG)) {
2800				avatar.type = "image/png";
2801			}
2802			if (!getFileBackend().save(avatar)) {
2803				callback.error(R.string.error_saving_avatar, avatar);
2804				return;
2805			}
2806			publishAvatar(account, avatar, callback);
2807		} else {
2808			callback.error(R.string.error_publish_avatar_converting, null);
2809		}
2810	}
2811
2812	public void publishAvatar(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2813		IqPacket packet = this.mIqGenerator.publishAvatar(avatar);
2814		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2815
2816			@Override
2817			public void onIqPacketReceived(Account account, IqPacket result) {
2818				if (result.getType() == IqPacket.TYPE.RESULT) {
2819					final IqPacket packet = XmppConnectionService.this.mIqGenerator.publishAvatarMetadata(avatar);
2820					sendIqPacket(account, packet, new OnIqPacketReceived() {
2821						@Override
2822						public void onIqPacketReceived(Account account, IqPacket result) {
2823							if (result.getType() == IqPacket.TYPE.RESULT) {
2824								if (account.setAvatar(avatar.getFilename())) {
2825									getAvatarService().clear(account);
2826									databaseBackend.updateAccount(account);
2827								}
2828								Log.d(Config.LOGTAG,account.getJid().toBareJid()+": published avatar "+(avatar.size/1024)+"KiB");
2829								if (callback != null) {
2830									callback.success(avatar);
2831								}
2832							} else {
2833								if (callback != null) {
2834									callback.error(R.string.error_publish_avatar_server_reject,avatar);
2835								}
2836							}
2837						}
2838					});
2839				} else {
2840					Element error = result.findChild("error");
2841					Log.d(Config.LOGTAG,account.getJid().toBareJid()+": server rejected avatar "+(avatar.size/1024)+"KiB "+(error!=null?error.toString():""));
2842					if (callback != null) {
2843						callback.error(R.string.error_publish_avatar_server_reject, avatar);
2844					}
2845				}
2846			}
2847		});
2848	}
2849
2850	public void republishAvatarIfNeeded(Account account) {
2851		if (account.getAxolotlService().isPepBroken()) {
2852			Log.d(Config.LOGTAG,account.getJid().toBareJid()+": skipping republication of avatar because pep is broken");
2853			return;
2854		}
2855		IqPacket packet = this.mIqGenerator.retrieveAvatarMetaData(null);
2856		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2857
2858			private Avatar parseAvatar(IqPacket packet) {
2859				Element pubsub = packet.findChild("pubsub", "http://jabber.org/protocol/pubsub");
2860				if (pubsub != null) {
2861					Element items = pubsub.findChild("items");
2862					if (items != null) {
2863						return Avatar.parseMetadata(items);
2864					}
2865				}
2866				return null;
2867			}
2868
2869			private boolean errorIsItemNotFound(IqPacket packet) {
2870				Element error = packet.findChild("error");
2871				return packet.getType() == IqPacket.TYPE.ERROR
2872						&& error != null
2873						&& error.hasChild("item-not-found");
2874			}
2875
2876			@Override
2877			public void onIqPacketReceived(Account account, IqPacket packet) {
2878				if (packet.getType() == IqPacket.TYPE.RESULT || errorIsItemNotFound(packet)) {
2879					Avatar serverAvatar = parseAvatar(packet);
2880					if (serverAvatar == null && account.getAvatar() != null) {
2881						Avatar avatar = fileBackend.getStoredPepAvatar(account.getAvatar());
2882						if (avatar != null) {
2883							Log.d(Config.LOGTAG,account.getJid().toBareJid()+": avatar on server was null. republishing");
2884							publishAvatar(account, fileBackend.getStoredPepAvatar(account.getAvatar()), null);
2885						} else {
2886							Log.e(Config.LOGTAG, account.getJid().toBareJid()+": error rereading avatar");
2887						}
2888					}
2889				}
2890			}
2891		});
2892	}
2893
2894	public void fetchAvatar(Account account, Avatar avatar) {
2895		fetchAvatar(account, avatar, null);
2896	}
2897
2898	public void fetchAvatar(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2899		final String KEY = generateFetchKey(account, avatar);
2900		synchronized (this.mInProgressAvatarFetches) {
2901			if (!this.mInProgressAvatarFetches.contains(KEY)) {
2902				switch (avatar.origin) {
2903					case PEP:
2904						this.mInProgressAvatarFetches.add(KEY);
2905						fetchAvatarPep(account, avatar, callback);
2906						break;
2907					case VCARD:
2908						this.mInProgressAvatarFetches.add(KEY);
2909						fetchAvatarVcard(account, avatar, callback);
2910						break;
2911				}
2912			}
2913		}
2914	}
2915
2916	private void fetchAvatarPep(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2917		IqPacket packet = this.mIqGenerator.retrievePepAvatar(avatar);
2918		sendIqPacket(account, packet, new OnIqPacketReceived() {
2919
2920			@Override
2921			public void onIqPacketReceived(Account account, IqPacket result) {
2922				synchronized (mInProgressAvatarFetches) {
2923					mInProgressAvatarFetches.remove(generateFetchKey(account, avatar));
2924				}
2925				final String ERROR = account.getJid().toBareJid()
2926						+ ": fetching avatar for " + avatar.owner + " failed ";
2927				if (result.getType() == IqPacket.TYPE.RESULT) {
2928					avatar.image = mIqParser.avatarData(result);
2929					if (avatar.image != null) {
2930						if (getFileBackend().save(avatar)) {
2931							if (account.getJid().toBareJid().equals(avatar.owner)) {
2932								if (account.setAvatar(avatar.getFilename())) {
2933									databaseBackend.updateAccount(account);
2934								}
2935								getAvatarService().clear(account);
2936								updateConversationUi();
2937								updateAccountUi();
2938							} else {
2939								Contact contact = account.getRoster()
2940										.getContact(avatar.owner);
2941								contact.setAvatar(avatar);
2942								getAvatarService().clear(contact);
2943								updateConversationUi();
2944								updateRosterUi();
2945							}
2946							if (callback != null) {
2947								callback.success(avatar);
2948							}
2949							Log.d(Config.LOGTAG, account.getJid().toBareJid()
2950									+ ": successfully fetched pep avatar for " + avatar.owner);
2951							return;
2952						}
2953					} else {
2954
2955						Log.d(Config.LOGTAG, ERROR + "(parsing error)");
2956					}
2957				} else {
2958					Element error = result.findChild("error");
2959					if (error == null) {
2960						Log.d(Config.LOGTAG, ERROR + "(server error)");
2961					} else {
2962						Log.d(Config.LOGTAG, ERROR + error.toString());
2963					}
2964				}
2965				if (callback != null) {
2966					callback.error(0, null);
2967				}
2968
2969			}
2970		});
2971	}
2972
2973	private void fetchAvatarVcard(final Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2974		IqPacket packet = this.mIqGenerator.retrieveVcardAvatar(avatar);
2975		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2976			@Override
2977			public void onIqPacketReceived(Account account, IqPacket packet) {
2978				synchronized (mInProgressAvatarFetches) {
2979					mInProgressAvatarFetches.remove(generateFetchKey(account, avatar));
2980				}
2981				if (packet.getType() == IqPacket.TYPE.RESULT) {
2982					Element vCard = packet.findChild("vCard", "vcard-temp");
2983					Element photo = vCard != null ? vCard.findChild("PHOTO") : null;
2984					String image = photo != null ? photo.findChildContent("BINVAL") : null;
2985					if (image != null) {
2986						avatar.image = image;
2987						if (getFileBackend().save(avatar)) {
2988							Log.d(Config.LOGTAG, account.getJid().toBareJid()
2989									+ ": successfully fetched vCard avatar for " + avatar.owner);
2990							if (avatar.owner.isBareJid()) {
2991								if (account.getJid().toBareJid().equals(avatar.owner) && account.getAvatar() == null) {
2992									Log.d(Config.LOGTAG,account.getJid().toBareJid()+": had no avatar. replacing with vcard");
2993									account.setAvatar(avatar.getFilename());
2994									databaseBackend.updateAccount(account);
2995									getAvatarService().clear(account);
2996									updateAccountUi();
2997								} else {
2998									Contact contact = account.getRoster().getContact(avatar.owner);
2999									contact.setAvatar(avatar);
3000									getAvatarService().clear(contact);
3001									updateRosterUi();
3002								}
3003								updateConversationUi();
3004							} else {
3005								Conversation conversation = find(account, avatar.owner.toBareJid());
3006								if (conversation != null && conversation.getMode() == Conversation.MODE_MULTI) {
3007									MucOptions.User user = conversation.getMucOptions().findUserByFullJid(avatar.owner);
3008									if (user != null) {
3009										if (user.setAvatar(avatar)) {
3010											getAvatarService().clear(user);
3011											updateConversationUi();
3012											updateMucRosterUi();
3013										}
3014									}
3015								}
3016							}
3017						}
3018					}
3019				}
3020			}
3021		});
3022	}
3023
3024	public void checkForAvatar(Account account, final UiCallback<Avatar> callback) {
3025		IqPacket packet = this.mIqGenerator.retrieveAvatarMetaData(null);
3026		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
3027
3028			@Override
3029			public void onIqPacketReceived(Account account, IqPacket packet) {
3030				if (packet.getType() == IqPacket.TYPE.RESULT) {
3031					Element pubsub = packet.findChild("pubsub","http://jabber.org/protocol/pubsub");
3032					if (pubsub != null) {
3033						Element items = pubsub.findChild("items");
3034						if (items != null) {
3035							Avatar avatar = Avatar.parseMetadata(items);
3036							if (avatar != null) {
3037								avatar.owner = account.getJid().toBareJid();
3038								if (fileBackend.isAvatarCached(avatar)) {
3039									if (account.setAvatar(avatar.getFilename())) {
3040										databaseBackend.updateAccount(account);
3041									}
3042									getAvatarService().clear(account);
3043									callback.success(avatar);
3044								} else {
3045									fetchAvatarPep(account, avatar, callback);
3046								}
3047								return;
3048							}
3049						}
3050					}
3051				}
3052				callback.error(0, null);
3053			}
3054		});
3055	}
3056
3057	public void deleteContactOnServer(Contact contact) {
3058		contact.resetOption(Contact.Options.PREEMPTIVE_GRANT);
3059		contact.resetOption(Contact.Options.DIRTY_PUSH);
3060		contact.setOption(Contact.Options.DIRTY_DELETE);
3061		Account account = contact.getAccount();
3062		if (account.getStatus() == Account.State.ONLINE) {
3063			IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
3064			Element item = iq.query(Namespace.ROSTER).addChild("item");
3065			item.setAttribute("jid", contact.getJid().toString());
3066			item.setAttribute("subscription", "remove");
3067			account.getXmppConnection().sendIqPacket(iq, mDefaultIqHandler);
3068		}
3069	}
3070
3071	public void updateConversation(final Conversation conversation) {
3072		mDatabaseExecutor.execute(new Runnable() {
3073			@Override
3074			public void run() {
3075				databaseBackend.updateConversation(conversation);
3076			}
3077		});
3078	}
3079
3080	private void reconnectAccount(final Account account, final boolean force, final boolean interactive) {
3081		synchronized (account) {
3082			XmppConnection connection = account.getXmppConnection();
3083			if (connection == null) {
3084				connection = createConnection(account);
3085				account.setXmppConnection(connection);
3086			}
3087			boolean hasInternet = hasInternetConnection();
3088			if (!account.isOptionSet(Account.OPTION_DISABLED) && hasInternet) {
3089				if (!force) {
3090					disconnect(account, false);
3091				}
3092				Thread thread = new Thread(connection);
3093				connection.setInteractive(interactive);
3094				connection.prepareNewConnection();
3095				connection.interrupt();
3096				thread.start();
3097				scheduleWakeUpCall(Config.CONNECT_DISCO_TIMEOUT, account.getUuid().hashCode());
3098			} else {
3099				disconnect(account, force || account.getTrueStatus().isError() || !hasInternet);
3100				account.getRoster().clearPresences();
3101				connection.resetEverything();
3102				final AxolotlService axolotlService = account.getAxolotlService();
3103				if (axolotlService != null) {
3104					axolotlService.resetBrokenness();
3105				}
3106				if (!hasInternet) {
3107					account.setStatus(Account.State.NO_INTERNET);
3108				}
3109			}
3110		}
3111	}
3112
3113	public void reconnectAccountInBackground(final Account account) {
3114		new Thread(new Runnable() {
3115			@Override
3116			public void run() {
3117				reconnectAccount(account, false, true);
3118			}
3119		}).start();
3120	}
3121
3122	public void invite(Conversation conversation, Jid contact) {
3123		Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid() + ": inviting " + contact + " to " + conversation.getJid().toBareJid());
3124		MessagePacket packet = mMessageGenerator.invite(conversation, contact);
3125		sendMessagePacket(conversation.getAccount(), packet);
3126	}
3127
3128	public void directInvite(Conversation conversation, Jid jid) {
3129		MessagePacket packet = mMessageGenerator.directInvite(conversation, jid);
3130		sendMessagePacket(conversation.getAccount(), packet);
3131	}
3132
3133	public void resetSendingToWaiting(Account account) {
3134		for (Conversation conversation : getConversations()) {
3135			if (conversation.getAccount() == account) {
3136				conversation.findUnsentTextMessages(new Conversation.OnMessageFound() {
3137
3138					@Override
3139					public void onMessageFound(Message message) {
3140						markMessage(message, Message.STATUS_WAITING);
3141					}
3142				});
3143			}
3144		}
3145	}
3146
3147	public Message markMessage(final Account account, final Jid recipient, final String uuid, final int status) {
3148		return markMessage(account, recipient, uuid, status, null);
3149	}
3150
3151	public Message markMessage(final Account account, final Jid recipient, final String uuid, final int status, String errorMessage) {
3152		if (uuid == null) {
3153			return null;
3154		}
3155		for (Conversation conversation : getConversations()) {
3156			if (conversation.getJid().toBareJid().equals(recipient) && conversation.getAccount() == account) {
3157				final Message message = conversation.findSentMessageWithUuidOrRemoteId(uuid);
3158				if (message != null) {
3159					markMessage(message, status, errorMessage);
3160				}
3161				return message;
3162			}
3163		}
3164		return null;
3165	}
3166
3167	public boolean markMessage(Conversation conversation, String uuid, int status, String serverMessageId) {
3168		if (uuid == null) {
3169			return false;
3170		} else {
3171			Message message = conversation.findSentMessageWithUuid(uuid);
3172			if (message != null) {
3173				if (message.getServerMsgId() == null) {
3174					message.setServerMsgId(serverMessageId);
3175				}
3176				markMessage(message, status);
3177				return true;
3178			} else {
3179				return false;
3180			}
3181		}
3182	}
3183
3184	public void markMessage(Message message, int status) {
3185		markMessage(message, status, null);
3186	}
3187
3188
3189	public void markMessage(Message message, int status, String errorMessage) {
3190		if (status == Message.STATUS_SEND_FAILED
3191				&& (message.getStatus() == Message.STATUS_SEND_RECEIVED || message
3192				.getStatus() == Message.STATUS_SEND_DISPLAYED)) {
3193			return;
3194		}
3195		message.setErrorMessage(errorMessage);
3196		message.setStatus(status);
3197		databaseBackend.updateMessage(message);
3198		updateConversationUi();
3199	}
3200
3201	private SharedPreferences getPreferences() {
3202		return PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
3203	}
3204
3205	public long getAutomaticMessageDeletionDate() {
3206		final long timeout = getLongPreference(SettingsActivity.AUTOMATIC_MESSAGE_DELETION,R.integer.automatic_message_deletion);
3207		return timeout == 0 ? timeout : (System.currentTimeMillis() - (timeout * 1000));
3208	}
3209
3210	public long getLongPreference(String name, @IntegerRes int res) {
3211		long defaultValue = getResources().getInteger(res);
3212		try {
3213			return Long.parseLong(getPreferences().getString(name,String.valueOf(defaultValue)));
3214		} catch (NumberFormatException e) {
3215			return defaultValue;
3216		}
3217	}
3218
3219	public boolean getBooleanPreference(String name, @BoolRes int res) {
3220		return getPreferences().getBoolean(name,getResources().getBoolean(res));
3221	}
3222
3223	public boolean confirmMessages() {
3224		return getBooleanPreference("confirm_messages", R.bool.confirm_messages);
3225	}
3226
3227	public boolean allowMessageCorrection() {
3228		return getBooleanPreference("allow_message_correction", R.bool.allow_message_correction);
3229	}
3230
3231	public boolean sendChatStates() {
3232		return getBooleanPreference("chat_states", R.bool.chat_states);
3233	}
3234
3235	private boolean respectAutojoin() {
3236		return getBooleanPreference("autojoin", R.bool.autojoin);
3237	}
3238
3239	public boolean indicateReceived() {
3240		return getBooleanPreference("indicate_received", R.bool.indicate_received);
3241	}
3242
3243	public boolean useTorToConnect() {
3244		return Config.FORCE_ORBOT || getBooleanPreference("use_tor", R.bool.use_tor);
3245	}
3246
3247	public boolean showExtendedConnectionOptions() {
3248		return getBooleanPreference("show_connection_options", R.bool.show_connection_options);
3249	}
3250
3251	public boolean broadcastLastActivity() {
3252		return getBooleanPreference(SettingsActivity.BROADCAST_LAST_ACTIVITY, R.bool.last_activity);
3253	}
3254
3255	public int unreadCount() {
3256		int count = 0;
3257		for (Conversation conversation : getConversations()) {
3258			count += conversation.unreadCount();
3259		}
3260		return count;
3261	}
3262
3263
3264	public void showErrorToastInUi(int resId) {
3265		if (mOnShowErrorToast != null) {
3266			mOnShowErrorToast.onShowErrorToast(resId);
3267		}
3268	}
3269
3270	public void updateConversationUi() {
3271		if (mOnConversationUpdate != null) {
3272			mOnConversationUpdate.onConversationUpdate();
3273		}
3274	}
3275
3276	public void updateAccountUi() {
3277		if (mOnAccountUpdate != null) {
3278			mOnAccountUpdate.onAccountUpdate();
3279		}
3280	}
3281
3282	public void updateRosterUi() {
3283		if (mOnRosterUpdate != null) {
3284			mOnRosterUpdate.onRosterUpdate();
3285		}
3286	}
3287
3288	public boolean displayCaptchaRequest(Account account, String id, Data data, Bitmap captcha) {
3289		if (mOnCaptchaRequested != null) {
3290			DisplayMetrics metrics = getApplicationContext().getResources().getDisplayMetrics();
3291			Bitmap scaled = Bitmap.createScaledBitmap(captcha, (int) (captcha.getWidth() * metrics.scaledDensity),
3292					(int) (captcha.getHeight() * metrics.scaledDensity), false);
3293
3294			mOnCaptchaRequested.onCaptchaRequested(account, id, data, scaled);
3295			return true;
3296		}
3297		return false;
3298	}
3299
3300	public void updateBlocklistUi(final OnUpdateBlocklist.Status status) {
3301		if (mOnUpdateBlocklist != null) {
3302			mOnUpdateBlocklist.OnUpdateBlocklist(status);
3303		}
3304	}
3305
3306	public void updateMucRosterUi() {
3307		if (mOnMucRosterUpdate != null) {
3308			mOnMucRosterUpdate.onMucRosterUpdate();
3309		}
3310	}
3311
3312	public void keyStatusUpdated(AxolotlService.FetchStatus report) {
3313		if (mOnKeyStatusUpdated != null) {
3314			mOnKeyStatusUpdated.onKeyStatusUpdated(report);
3315		}
3316	}
3317
3318	public Account findAccountByJid(final Jid accountJid) {
3319		for (Account account : this.accounts) {
3320			if (account.getJid().toBareJid().equals(accountJid.toBareJid())) {
3321				return account;
3322			}
3323		}
3324		return null;
3325	}
3326
3327	public Conversation findConversationByUuid(String uuid) {
3328		for (Conversation conversation : getConversations()) {
3329			if (conversation.getUuid().equals(uuid)) {
3330				return conversation;
3331			}
3332		}
3333		return null;
3334	}
3335
3336	public boolean markRead(final Conversation conversation) {
3337		return markRead(conversation,true);
3338	}
3339
3340	public boolean markRead(final Conversation conversation, boolean clear) {
3341		if (clear) {
3342			mNotificationService.clear(conversation);
3343		}
3344		final List<Message> readMessages = conversation.markRead();
3345		if (readMessages.size() > 0) {
3346			Runnable runnable = new Runnable() {
3347				@Override
3348				public void run() {
3349					for (Message message : readMessages) {
3350						databaseBackend.updateMessage(message);
3351					}
3352				}
3353			};
3354			mDatabaseExecutor.execute(runnable);
3355			updateUnreadCountBadge();
3356			return true;
3357		} else {
3358			return false;
3359		}
3360	}
3361
3362	public synchronized void updateUnreadCountBadge() {
3363		int count = unreadCount();
3364		if (unreadCount != count) {
3365			Log.d(Config.LOGTAG, "update unread count to " + count);
3366			if (count > 0) {
3367				ShortcutBadger.applyCount(getApplicationContext(), count);
3368			} else {
3369				ShortcutBadger.removeCount(getApplicationContext());
3370			}
3371			unreadCount = count;
3372		}
3373	}
3374
3375	public void sendReadMarker(final Conversation conversation) {
3376		final Message markable = conversation.getLatestMarkableMessage();
3377		if (this.markRead(conversation)) {
3378			updateConversationUi();
3379		}
3380		if (confirmMessages()
3381				&& markable != null
3382				&& markable.trusted()
3383				&& markable.getRemoteMsgId() != null) {
3384			Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid() + ": sending read marker to " + markable.getCounterpart().toString());
3385			Account account = conversation.getAccount();
3386			final Jid to = markable.getCounterpart();
3387			MessagePacket packet = mMessageGenerator.confirm(account, to, markable.getRemoteMsgId());
3388			this.sendMessagePacket(conversation.getAccount(), packet);
3389		}
3390	}
3391
3392	public SecureRandom getRNG() {
3393		return this.mRandom;
3394	}
3395
3396	public MemorizingTrustManager getMemorizingTrustManager() {
3397		return this.mMemorizingTrustManager;
3398	}
3399
3400	public void setMemorizingTrustManager(MemorizingTrustManager trustManager) {
3401		this.mMemorizingTrustManager = trustManager;
3402	}
3403
3404	public void updateMemorizingTrustmanager() {
3405		final MemorizingTrustManager tm;
3406		final boolean dontTrustSystemCAs = getBooleanPreference("dont_trust_system_cas", R.bool.dont_trust_system_cas);
3407		if (dontTrustSystemCAs) {
3408			tm = new MemorizingTrustManager(getApplicationContext(), null);
3409		} else {
3410			tm = new MemorizingTrustManager(getApplicationContext());
3411		}
3412		setMemorizingTrustManager(tm);
3413	}
3414
3415	public PowerManager getPowerManager() {
3416		return this.pm;
3417	}
3418
3419	public LruCache<String, Bitmap> getBitmapCache() {
3420		return this.mBitmapCache;
3421	}
3422
3423	public void syncRosterToDisk(final Account account) {
3424		Runnable runnable = new Runnable() {
3425
3426			@Override
3427			public void run() {
3428				databaseBackend.writeRoster(account.getRoster());
3429			}
3430		};
3431		mDatabaseExecutor.execute(runnable);
3432
3433	}
3434
3435	public List<String> getKnownHosts() {
3436		final List<String> hosts = new ArrayList<>();
3437		for (final Account account : getAccounts()) {
3438			if (!hosts.contains(account.getServer().toString())) {
3439				hosts.add(account.getServer().toString());
3440			}
3441			for (final Contact contact : account.getRoster().getContacts()) {
3442				if (contact.showInRoster()) {
3443					final String server = contact.getServer().toString();
3444					if (server != null && !hosts.contains(server)) {
3445						hosts.add(server);
3446					}
3447				}
3448			}
3449		}
3450		if(Config.DOMAIN_LOCK != null && !hosts.contains(Config.DOMAIN_LOCK)) {
3451			hosts.add(Config.DOMAIN_LOCK);
3452		}
3453		if(Config.MAGIC_CREATE_DOMAIN != null && !hosts.contains(Config.MAGIC_CREATE_DOMAIN)) {
3454			hosts.add(Config.MAGIC_CREATE_DOMAIN);
3455		}
3456		return hosts;
3457	}
3458
3459	public List<String> getKnownConferenceHosts() {
3460		final ArrayList<String> mucServers = new ArrayList<>();
3461		for (final Account account : accounts) {
3462			if (account.getXmppConnection() != null) {
3463				final String server = account.getXmppConnection().getMucServer();
3464				if (server != null && !mucServers.contains(server)) {
3465					mucServers.add(server);
3466				}
3467				for(Bookmark bookmark : account.getBookmarks()) {
3468					final Jid jid = bookmark.getJid();
3469					final String s = jid == null ? null : jid.getDomainpart();
3470					if (s != null && !mucServers.contains(s)) {
3471						mucServers.add(s);
3472					}
3473				}
3474			}
3475		}
3476		return mucServers;
3477	}
3478
3479	public void sendMessagePacket(Account account, MessagePacket packet) {
3480		XmppConnection connection = account.getXmppConnection();
3481		if (connection != null) {
3482			connection.sendMessagePacket(packet);
3483		}
3484	}
3485
3486	public void sendPresencePacket(Account account, PresencePacket packet) {
3487		XmppConnection connection = account.getXmppConnection();
3488		if (connection != null) {
3489			connection.sendPresencePacket(packet);
3490		}
3491	}
3492
3493	public void sendCreateAccountWithCaptchaPacket(Account account, String id, Data data) {
3494		final XmppConnection connection = account.getXmppConnection();
3495		if (connection != null) {
3496			IqPacket request = mIqGenerator.generateCreateAccountWithCaptcha(account, id, data);
3497			connection.sendUnmodifiedIqPacket(request, connection.registrationResponseListener);
3498		}
3499	}
3500
3501	public void sendIqPacket(final Account account, final IqPacket packet, final OnIqPacketReceived callback) {
3502		final XmppConnection connection = account.getXmppConnection();
3503		if (connection != null) {
3504			connection.sendIqPacket(packet, callback);
3505		}
3506	}
3507
3508	public void sendPresence(final Account account) {
3509		sendPresence(account, checkListeners() && broadcastLastActivity());
3510	}
3511
3512	private void sendPresence(final Account account, final boolean includeIdleTimestamp) {
3513		PresencePacket packet;
3514		if (manuallyChangePresence()) {
3515			packet =  mPresenceGenerator.selfPresence(account, account.getPresenceStatus());
3516			String message = account.getPresenceStatusMessage();
3517			if (message != null && !message.isEmpty()) {
3518				packet.addChild(new Element("status").setContent(message));
3519			}
3520		} else {
3521			packet = mPresenceGenerator.selfPresence(account, getTargetPresence());
3522		}
3523		if (mLastActivity > 0 && includeIdleTimestamp) {
3524			long since = Math.min(mLastActivity, System.currentTimeMillis()); //don't send future dates
3525			packet.addChild("idle",Namespace.IDLE).setAttribute("since", AbstractGenerator.getTimestamp(since));
3526		}
3527		sendPresencePacket(account, packet);
3528	}
3529
3530	private void deactivateGracePeriod() {
3531		for(Account account : getAccounts()) {
3532			account.deactivateGracePeriod();
3533		}
3534	}
3535
3536	public void refreshAllPresences() {
3537		boolean includeIdleTimestamp = checkListeners() && broadcastLastActivity();
3538		for (Account account : getAccounts()) {
3539			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
3540				sendPresence(account, includeIdleTimestamp);
3541			}
3542		}
3543	}
3544
3545	private void refreshAllGcmTokens() {
3546		for(Account account : getAccounts()) {
3547			if (account.isOnlineAndConnected() && mPushManagementService.available(account)) {
3548				mPushManagementService.registerPushTokenOnServer(account);
3549			}
3550		}
3551	}
3552
3553	private void sendOfflinePresence(final Account account) {
3554		Log.d(Config.LOGTAG,account.getJid().toBareJid()+": sending offline presence");
3555		sendPresencePacket(account, mPresenceGenerator.sendOfflinePresence(account));
3556	}
3557
3558	public MessageGenerator getMessageGenerator() {
3559		return this.mMessageGenerator;
3560	}
3561
3562	public PresenceGenerator getPresenceGenerator() {
3563		return this.mPresenceGenerator;
3564	}
3565
3566	public IqGenerator getIqGenerator() {
3567		return this.mIqGenerator;
3568	}
3569
3570	public IqParser getIqParser() {
3571		return this.mIqParser;
3572	}
3573
3574	public JingleConnectionManager getJingleConnectionManager() {
3575		return this.mJingleConnectionManager;
3576	}
3577
3578	public MessageArchiveService getMessageArchiveService() {
3579		return this.mMessageArchiveService;
3580	}
3581
3582	public List<Contact> findContacts(Jid jid, String accountJid) {
3583		ArrayList<Contact> contacts = new ArrayList<>();
3584		for (Account account : getAccounts()) {
3585			if ((!account.isOptionSet(Account.OPTION_DISABLED) || accountJid != null)
3586					&& (accountJid == null || accountJid.equals(account.getJid().toBareJid().toString()))) {
3587				Contact contact = account.getRoster().getContactFromRoster(jid);
3588				if (contact != null) {
3589					contacts.add(contact);
3590				}
3591			}
3592		}
3593		return contacts;
3594	}
3595
3596	public Conversation findFirstMuc(Jid jid) {
3597		for(Conversation conversation : getConversations()) {
3598			if (conversation.getJid().toBareJid().equals(jid.toBareJid())
3599					&& conversation.getMode() == Conversation.MODE_MULTI) {
3600				return conversation;
3601			}
3602		}
3603		return null;
3604	}
3605
3606	public NotificationService getNotificationService() {
3607		return this.mNotificationService;
3608	}
3609
3610	public HttpConnectionManager getHttpConnectionManager() {
3611		return this.mHttpConnectionManager;
3612	}
3613
3614	public void resendFailedMessages(final Message message) {
3615		final Collection<Message> messages = new ArrayList<>();
3616		Message current = message;
3617		while (current.getStatus() == Message.STATUS_SEND_FAILED) {
3618			messages.add(current);
3619			if (current.mergeable(current.next())) {
3620				current = current.next();
3621			} else {
3622				break;
3623			}
3624		}
3625		for (final Message msg : messages) {
3626			msg.setTime(System.currentTimeMillis());
3627			markMessage(msg, Message.STATUS_WAITING);
3628			this.resendMessage(msg, false);
3629		}
3630	}
3631
3632	public void clearConversationHistory(final Conversation conversation) {
3633		final long clearDate;
3634		final String reference;
3635		if (conversation.countMessages() > 0) {
3636			Message latestMessage = conversation.getLatestMessage();
3637			clearDate = latestMessage.getTimeSent() + 1000;
3638			reference = latestMessage.getServerMsgId();
3639		} else {
3640			clearDate = System.currentTimeMillis();
3641			reference = null;
3642		}
3643		conversation.clearMessages();
3644		conversation.setHasMessagesLeftOnServer(false); //avoid messages getting loaded through mam
3645		conversation.setLastClearHistory(clearDate,reference);
3646		Runnable runnable = new Runnable() {
3647			@Override
3648			public void run() {
3649				databaseBackend.deleteMessagesInConversation(conversation);
3650				databaseBackend.updateConversation(conversation);
3651			}
3652		};
3653		mDatabaseExecutor.execute(runnable);
3654	}
3655
3656	public boolean sendBlockRequest(final Blockable blockable, boolean reportSpam) {
3657		if (blockable != null && blockable.getBlockedJid() != null) {
3658			final Jid jid = blockable.getBlockedJid();
3659			this.sendIqPacket(blockable.getAccount(), getIqGenerator().generateSetBlockRequest(jid, reportSpam), new OnIqPacketReceived() {
3660
3661				@Override
3662				public void onIqPacketReceived(final Account account, final IqPacket packet) {
3663					if (packet.getType() == IqPacket.TYPE.RESULT) {
3664						account.getBlocklist().add(jid);
3665						updateBlocklistUi(OnUpdateBlocklist.Status.BLOCKED);
3666					}
3667				}
3668			});
3669			if (removeBlockedConversations(blockable.getAccount(),jid)) {
3670				updateConversationUi();
3671				return true;
3672			} else {
3673				return false;
3674			}
3675		} else {
3676			return false;
3677		}
3678	}
3679
3680	public boolean removeBlockedConversations(final Account account, final Jid blockedJid) {
3681		boolean removed = false;
3682		synchronized (this.conversations) {
3683			boolean domainJid = blockedJid.isDomainJid();
3684			for(Conversation conversation : this.conversations) {
3685				boolean jidMatches = (domainJid && blockedJid.getDomainpart().equals(conversation.getJid().getDomainpart()))
3686						|| blockedJid.equals(conversation.getJid().toBareJid());
3687				if (conversation.getAccount() == account
3688						&& conversation.getMode() == Conversation.MODE_SINGLE
3689						&& jidMatches) {
3690					this.conversations.remove(conversation);
3691					markRead(conversation);
3692					conversation.setStatus(Conversation.STATUS_ARCHIVED);
3693					Log.d(Config.LOGTAG,account.getJid().toBareJid()+": archiving conversation "+conversation.getJid().toBareJid()+" because jid was blocked");
3694					updateConversation(conversation);
3695					removed = true;
3696				}
3697			}
3698		}
3699		return removed;
3700	}
3701
3702	public void sendUnblockRequest(final Blockable blockable) {
3703		if (blockable != null && blockable.getJid() != null) {
3704			final Jid jid = blockable.getBlockedJid();
3705			this.sendIqPacket(blockable.getAccount(), getIqGenerator().generateSetUnblockRequest(jid), new OnIqPacketReceived() {
3706				@Override
3707				public void onIqPacketReceived(final Account account, final IqPacket packet) {
3708					if (packet.getType() == IqPacket.TYPE.RESULT) {
3709						account.getBlocklist().remove(jid);
3710						updateBlocklistUi(OnUpdateBlocklist.Status.UNBLOCKED);
3711					}
3712				}
3713			});
3714		}
3715	}
3716
3717	public void publishDisplayName(Account account) {
3718		String displayName = account.getDisplayName();
3719		if (displayName != null && !displayName.isEmpty()) {
3720			IqPacket publish = mIqGenerator.publishNick(displayName);
3721			sendIqPacket(account, publish, new OnIqPacketReceived() {
3722				@Override
3723				public void onIqPacketReceived(Account account, IqPacket packet) {
3724					if (packet.getType() == IqPacket.TYPE.ERROR) {
3725						Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": could not publish nick");
3726					}
3727				}
3728			});
3729		}
3730	}
3731
3732	public ServiceDiscoveryResult getCachedServiceDiscoveryResult(Pair<String, String> key) {
3733		ServiceDiscoveryResult result = discoCache.get(key);
3734		if (result != null) {
3735			return result;
3736		} else {
3737			result = databaseBackend.findDiscoveryResult(key.first, key.second);
3738			if (result != null) {
3739				discoCache.put(key, result);
3740			}
3741			return result;
3742		}
3743	}
3744
3745	public void fetchCaps(Account account, final Jid jid, final Presence presence) {
3746		final Pair<String,String> key = new Pair<>(presence.getHash(), presence.getVer());
3747		ServiceDiscoveryResult disco = getCachedServiceDiscoveryResult(key);
3748		if (disco != null) {
3749			presence.setServiceDiscoveryResult(disco);
3750		} else {
3751			if (!account.inProgressDiscoFetches.contains(key)) {
3752				account.inProgressDiscoFetches.add(key);
3753				IqPacket request = new IqPacket(IqPacket.TYPE.GET);
3754				request.setTo(jid);
3755				request.query("http://jabber.org/protocol/disco#info");
3756				Log.d(Config.LOGTAG,account.getJid().toBareJid()+": making disco request for "+key.second+" to "+jid);
3757				sendIqPacket(account, request, new OnIqPacketReceived() {
3758					@Override
3759					public void onIqPacketReceived(Account account, IqPacket discoPacket) {
3760						if (discoPacket.getType() == IqPacket.TYPE.RESULT) {
3761							ServiceDiscoveryResult disco = new ServiceDiscoveryResult(discoPacket);
3762							if (presence.getVer().equals(disco.getVer())) {
3763								databaseBackend.insertDiscoveryResult(disco);
3764								injectServiceDiscorveryResult(account.getRoster(), presence.getHash(), presence.getVer(), disco);
3765							} else {
3766								Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": mismatch in caps for contact " + jid + " " + presence.getVer() + " vs " + disco.getVer());
3767							}
3768						}
3769						account.inProgressDiscoFetches.remove(key);
3770					}
3771				});
3772			}
3773		}
3774	}
3775
3776	private void injectServiceDiscorveryResult(Roster roster, String hash, String ver, ServiceDiscoveryResult disco) {
3777		for(Contact contact : roster.getContacts()) {
3778			for(Presence presence : contact.getPresences().getPresences().values()) {
3779				if (hash.equals(presence.getHash()) && ver.equals(presence.getVer())) {
3780					presence.setServiceDiscoveryResult(disco);
3781				}
3782			}
3783		}
3784	}
3785
3786	public void fetchMamPreferences(Account account, final OnMamPreferencesFetched callback) {
3787		final boolean legacy = account.getXmppConnection().getFeatures().mamLegacy();
3788		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
3789		request.addChild("prefs",legacy ? Namespace.MAM_LEGACY : Namespace.MAM);
3790		sendIqPacket(account, request, new OnIqPacketReceived() {
3791			@Override
3792			public void onIqPacketReceived(Account account, IqPacket packet) {
3793				Element prefs = packet.findChild("prefs",legacy ? Namespace.MAM_LEGACY : Namespace.MAM);
3794				if (packet.getType() == IqPacket.TYPE.RESULT && prefs != null) {
3795					callback.onPreferencesFetched(prefs);
3796				} else {
3797					callback.onPreferencesFetchFailed();
3798				}
3799			}
3800		});
3801	}
3802
3803	public PushManagementService getPushManagementService() {
3804		return mPushManagementService;
3805	}
3806
3807	public Account getPendingAccount() {
3808		Account pending = null;
3809		for(Account account : getAccounts()) {
3810			if (account.isOptionSet(Account.OPTION_REGISTER)) {
3811				pending = account;
3812			} else {
3813				return null;
3814			}
3815		}
3816		return pending;
3817	}
3818
3819	public void changeStatus(Account account, Presence.Status status, String statusMessage, boolean send) {
3820		if (!statusMessage.isEmpty()) {
3821			databaseBackend.insertPresenceTemplate(new PresenceTemplate(status, statusMessage));
3822		}
3823		changeStatusReal(account, status, statusMessage, send);
3824	}
3825
3826	private void changeStatusReal(Account account, Presence.Status status, String statusMessage, boolean send) {
3827		account.setPresenceStatus(status);
3828		account.setPresenceStatusMessage(statusMessage);
3829		databaseBackend.updateAccount(account);
3830		if (!account.isOptionSet(Account.OPTION_DISABLED) && send) {
3831			sendPresence(account);
3832		}
3833	}
3834
3835	public void changeStatus(Presence.Status status, String statusMessage) {
3836		if (!statusMessage.isEmpty()) {
3837			databaseBackend.insertPresenceTemplate(new PresenceTemplate(status, statusMessage));
3838		}
3839		for(Account account : getAccounts()) {
3840			changeStatusReal(account, status, statusMessage, true);
3841		}
3842	}
3843
3844	public List<PresenceTemplate> getPresenceTemplates(Account account) {
3845		List<PresenceTemplate> templates = databaseBackend.getPresenceTemplates();
3846		for(PresenceTemplate template : account.getSelfContact().getPresences().asTemplates()) {
3847			if (!templates.contains(template)) {
3848				templates.add(0, template);
3849			}
3850		}
3851		return templates;
3852	}
3853
3854	public void saveConversationAsBookmark(Conversation conversation, String name) {
3855		Account account = conversation.getAccount();
3856		Bookmark bookmark = new Bookmark(account, conversation.getJid().toBareJid());
3857		if (!conversation.getJid().isBareJid()) {
3858			bookmark.setNick(conversation.getJid().getResourcepart());
3859		}
3860		if (name != null && !name.trim().isEmpty()) {
3861			bookmark.setBookmarkName(name.trim());
3862		}
3863		bookmark.setAutojoin(getPreferences().getBoolean("autojoin",getResources().getBoolean(R.bool.autojoin)));
3864		account.getBookmarks().add(bookmark);
3865		pushBookmarks(account);
3866		conversation.setBookmark(bookmark);
3867	}
3868
3869	public boolean verifyFingerprints(Contact contact, List<XmppUri.Fingerprint> fingerprints) {
3870		boolean needsRosterWrite = false;
3871		boolean performedVerification = false;
3872		final AxolotlService axolotlService = contact.getAccount().getAxolotlService();
3873		for(XmppUri.Fingerprint fp : fingerprints) {
3874			if (fp.type == XmppUri.FingerprintType.OTR) {
3875				performedVerification |= contact.addOtrFingerprint(fp.fingerprint);
3876				needsRosterWrite |= performedVerification;
3877			} else if (fp.type == XmppUri.FingerprintType.OMEMO) {
3878				String fingerprint = "05"+fp.fingerprint.replaceAll("\\s","");
3879				FingerprintStatus fingerprintStatus = axolotlService.getFingerprintTrust(fingerprint);
3880				if (fingerprintStatus != null) {
3881					if (!fingerprintStatus.isVerified()) {
3882						performedVerification = true;
3883						axolotlService.setFingerprintTrust(fingerprint,fingerprintStatus.toVerified());
3884					}
3885				} else {
3886					axolotlService.preVerifyFingerprint(contact,fingerprint);
3887				}
3888			}
3889		}
3890		if (needsRosterWrite) {
3891			syncRosterToDisk(contact.getAccount());
3892		}
3893		return performedVerification;
3894	}
3895
3896	public boolean verifyFingerprints(Account account, List<XmppUri.Fingerprint> fingerprints) {
3897		final AxolotlService axolotlService = account.getAxolotlService();
3898		boolean verifiedSomething = false;
3899		for(XmppUri.Fingerprint fp : fingerprints) {
3900			if (fp.type == XmppUri.FingerprintType.OMEMO) {
3901				String fingerprint = "05"+fp.fingerprint.replaceAll("\\s","");
3902				Log.d(Config.LOGTAG,"trying to verify own fp="+fingerprint);
3903				FingerprintStatus fingerprintStatus = axolotlService.getFingerprintTrust(fingerprint);
3904				if (fingerprintStatus != null) {
3905					if (!fingerprintStatus.isVerified()) {
3906						axolotlService.setFingerprintTrust(fingerprint,fingerprintStatus.toVerified());
3907						verifiedSomething = true;
3908					}
3909				} else {
3910					axolotlService.preVerifyFingerprint(account,fingerprint);
3911					verifiedSomething = true;
3912				}
3913			}
3914		}
3915		return verifiedSomething;
3916	}
3917
3918	public boolean blindTrustBeforeVerification() {
3919		return getBooleanPreference(SettingsActivity.BLIND_TRUST_BEFORE_VERIFICATION,R.bool.btbv);
3920	}
3921
3922	public ShortcutService getShortcutService() {
3923		return mShortcutService;
3924	}
3925
3926	public interface OnMamPreferencesFetched {
3927		void onPreferencesFetched(Element prefs);
3928		void onPreferencesFetchFailed();
3929	}
3930
3931	public void pushMamPreferences(Account account, Element prefs) {
3932		IqPacket set = new IqPacket(IqPacket.TYPE.SET);
3933		set.addChild(prefs);
3934		sendIqPacket(account, set, null);
3935	}
3936
3937	public interface OnAccountCreated {
3938		void onAccountCreated(Account account);
3939
3940		void informUser(int r);
3941	}
3942
3943	public interface OnMoreMessagesLoaded {
3944		void onMoreMessagesLoaded(int count, Conversation conversation);
3945
3946		void informUser(int r);
3947	}
3948
3949	public interface OnAccountPasswordChanged {
3950		void onPasswordChangeSucceeded();
3951
3952		void onPasswordChangeFailed();
3953	}
3954
3955	public interface OnAffiliationChanged {
3956		void onAffiliationChangedSuccessful(Jid jid);
3957
3958		void onAffiliationChangeFailed(Jid jid, int resId);
3959	}
3960
3961	public interface OnRoleChanged {
3962		void onRoleChangedSuccessful(String nick);
3963
3964		void onRoleChangeFailed(String nick, int resid);
3965	}
3966
3967	public interface OnConversationUpdate {
3968		void onConversationUpdate();
3969	}
3970
3971	public interface OnAccountUpdate {
3972		void onAccountUpdate();
3973	}
3974
3975	public interface OnCaptchaRequested {
3976		void onCaptchaRequested(Account account,
3977								String id,
3978								Data data,
3979								Bitmap captcha);
3980	}
3981
3982	public interface OnRosterUpdate {
3983		void onRosterUpdate();
3984	}
3985
3986	public interface OnMucRosterUpdate {
3987		void onMucRosterUpdate();
3988	}
3989
3990	public interface OnConferenceConfigurationFetched {
3991		void onConferenceConfigurationFetched(Conversation conversation);
3992
3993		void onFetchFailed(Conversation conversation, Element error);
3994	}
3995
3996	public interface OnConferenceJoined {
3997		void onConferenceJoined(Conversation conversation);
3998	}
3999
4000	public interface OnConfigurationPushed {
4001		void onPushSucceeded();
4002
4003		void onPushFailed();
4004	}
4005
4006	public interface OnShowErrorToast {
4007		void onShowErrorToast(int resId);
4008	}
4009
4010	public class XmppConnectionBinder extends Binder {
4011		public XmppConnectionService getService() {
4012			return XmppConnectionService.this;
4013		}
4014	}
4015}