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.ParcelFileDescriptor;
  24import android.os.PowerManager;
  25import android.os.PowerManager.WakeLock;
  26import android.os.SystemClock;
  27import android.preference.PreferenceManager;
  28import android.provider.ContactsContract;
  29import android.security.KeyChain;
  30import android.support.v4.app.RemoteInput;
  31import android.util.DisplayMetrics;
  32import android.util.Log;
  33import android.util.LruCache;
  34import android.util.Pair;
  35
  36import net.java.otr4j.OtrException;
  37import net.java.otr4j.session.Session;
  38import net.java.otr4j.session.SessionID;
  39import net.java.otr4j.session.SessionImpl;
  40import net.java.otr4j.session.SessionStatus;
  41import net.ypresto.androidtranscoder.MediaTranscoder;
  42import net.ypresto.androidtranscoder.format.MediaFormatStrategyPresets;
  43
  44import org.openintents.openpgp.IOpenPgpService2;
  45import org.openintents.openpgp.util.OpenPgpApi;
  46import org.openintents.openpgp.util.OpenPgpServiceConnection;
  47
  48import java.io.FileDescriptor;
  49import java.io.FileNotFoundException;
  50import java.math.BigInteger;
  51import java.net.URL;
  52import java.security.SecureRandom;
  53import java.security.cert.CertificateException;
  54import java.security.cert.X509Certificate;
  55import java.util.ArrayList;
  56import java.util.Arrays;
  57import java.util.Collection;
  58import java.util.Collections;
  59import java.util.HashMap;
  60import java.util.HashSet;
  61import java.util.Hashtable;
  62import java.util.Iterator;
  63import java.util.List;
  64import java.util.ListIterator;
  65import java.util.Locale;
  66import java.util.Map;
  67import java.util.concurrent.CopyOnWriteArrayList;
  68import java.util.concurrent.atomic.AtomicLong;
  69
  70import de.duenndns.ssl.MemorizingTrustManager;
  71import eu.siacs.conversations.Config;
  72import eu.siacs.conversations.R;
  73import eu.siacs.conversations.crypto.PgpDecryptionService;
  74import eu.siacs.conversations.crypto.PgpEngine;
  75import eu.siacs.conversations.crypto.axolotl.AxolotlService;
  76import eu.siacs.conversations.crypto.axolotl.FingerprintStatus;
  77import eu.siacs.conversations.crypto.axolotl.XmppAxolotlMessage;
  78import eu.siacs.conversations.entities.Account;
  79import eu.siacs.conversations.entities.Blockable;
  80import eu.siacs.conversations.entities.Bookmark;
  81import eu.siacs.conversations.entities.Contact;
  82import eu.siacs.conversations.entities.Conversation;
  83import eu.siacs.conversations.entities.DownloadableFile;
  84import eu.siacs.conversations.entities.Message;
  85import eu.siacs.conversations.entities.MucOptions;
  86import eu.siacs.conversations.entities.MucOptions.OnRenameListener;
  87import eu.siacs.conversations.entities.Presence;
  88import eu.siacs.conversations.entities.PresenceTemplate;
  89import eu.siacs.conversations.entities.Roster;
  90import eu.siacs.conversations.entities.ServiceDiscoveryResult;
  91import eu.siacs.conversations.entities.Transferable;
  92import eu.siacs.conversations.entities.TransferablePlaceholder;
  93import eu.siacs.conversations.generator.AbstractGenerator;
  94import eu.siacs.conversations.generator.IqGenerator;
  95import eu.siacs.conversations.generator.MessageGenerator;
  96import eu.siacs.conversations.generator.PresenceGenerator;
  97import eu.siacs.conversations.http.HttpConnectionManager;
  98import eu.siacs.conversations.http.AesGcmURLStreamHandlerFactory;
  99import eu.siacs.conversations.parser.AbstractParser;
 100import eu.siacs.conversations.parser.IqParser;
 101import eu.siacs.conversations.parser.MessageParser;
 102import eu.siacs.conversations.parser.PresenceParser;
 103import eu.siacs.conversations.persistance.DatabaseBackend;
 104import eu.siacs.conversations.persistance.FileBackend;
 105import eu.siacs.conversations.ui.SettingsActivity;
 106import eu.siacs.conversations.ui.UiCallback;
 107import eu.siacs.conversations.ui.UiInformableCallback;
 108import eu.siacs.conversations.utils.ConversationsFileObserver;
 109import eu.siacs.conversations.utils.CryptoHelper;
 110import eu.siacs.conversations.utils.ExceptionHelper;
 111import eu.siacs.conversations.utils.MimeUtils;
 112import eu.siacs.conversations.utils.OnPhoneContactsLoadedListener;
 113import eu.siacs.conversations.utils.PRNGFixes;
 114import eu.siacs.conversations.utils.PhoneHelper;
 115import eu.siacs.conversations.utils.ReplacingSerialSingleThreadExecutor;
 116import eu.siacs.conversations.utils.SerialSingleThreadExecutor;
 117import eu.siacs.conversations.utils.Xmlns;
 118import eu.siacs.conversations.utils.XmppUri;
 119import eu.siacs.conversations.xml.Element;
 120import eu.siacs.conversations.xmpp.OnBindListener;
 121import eu.siacs.conversations.xmpp.OnContactStatusChanged;
 122import eu.siacs.conversations.xmpp.OnIqPacketReceived;
 123import eu.siacs.conversations.xmpp.OnKeyStatusUpdated;
 124import eu.siacs.conversations.xmpp.OnMessageAcknowledged;
 125import eu.siacs.conversations.xmpp.OnMessagePacketReceived;
 126import eu.siacs.conversations.xmpp.OnPresencePacketReceived;
 127import eu.siacs.conversations.xmpp.OnStatusChanged;
 128import eu.siacs.conversations.xmpp.OnUpdateBlocklist;
 129import eu.siacs.conversations.xmpp.XmppConnection;
 130import eu.siacs.conversations.xmpp.chatstate.ChatState;
 131import eu.siacs.conversations.xmpp.forms.Data;
 132import eu.siacs.conversations.xmpp.forms.Field;
 133import eu.siacs.conversations.xmpp.jid.InvalidJidException;
 134import eu.siacs.conversations.xmpp.jid.Jid;
 135import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
 136import eu.siacs.conversations.xmpp.jingle.OnJinglePacketReceived;
 137import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
 138import eu.siacs.conversations.xmpp.pep.Avatar;
 139import eu.siacs.conversations.xmpp.stanzas.IqPacket;
 140import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
 141import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
 142import me.leolin.shortcutbadger.ShortcutBadger;
 143
 144public class XmppConnectionService extends Service {
 145
 146	static {
 147		URL.setURLStreamHandlerFactory(new AesGcmURLStreamHandlerFactory());
 148	}
 149
 150	public static final String ACTION_REPLY_TO_CONVERSATION = "reply_to_conversations";
 151	public static final String ACTION_CLEAR_NOTIFICATION = "clear_notification";
 152	public static final String ACTION_DISABLE_FOREGROUND = "disable_foreground";
 153	public static final String ACTION_DISMISS_ERROR_NOTIFICATIONS = "dismiss_error";
 154	public static final String ACTION_TRY_AGAIN = "try_again";
 155	public static final String ACTION_IDLE_PING = "idle_ping";
 156	private static final String ACTION_MERGE_PHONE_CONTACTS = "merge_phone_contacts";
 157	public static final String ACTION_GCM_TOKEN_REFRESH = "gcm_token_refresh";
 158	public static final String ACTION_GCM_MESSAGE_RECEIVED = "gcm_message_received";
 159	private final SerialSingleThreadExecutor mFileAddingExecutor = 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(
 184			this);
 185	private OnMessagePacketReceived mMessageParser = new MessageParser(this);
 186	private OnPresencePacketReceived mPresenceParser = new PresenceParser(this);
 187	private IqParser mIqParser = new IqParser(this);
 188	private OnIqPacketReceived mDefaultIqHandler = new OnIqPacketReceived() {
 189		@Override
 190		public void onIqPacketReceived(Account account, IqPacket packet) {
 191			if (packet.getType() != IqPacket.TYPE.RESULT) {
 192				Element error = packet.findChild("error");
 193				String text = error != null ? error.findChildContent("text") : null;
 194				if (text != null) {
 195					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": received iq error - " + text);
 196				}
 197			}
 198		}
 199	};
 200	private MessageGenerator mMessageGenerator = new MessageGenerator(this);
 201	private PresenceGenerator mPresenceGenerator = new PresenceGenerator(this);
 202	private List<Account> accounts;
 203	private JingleConnectionManager mJingleConnectionManager = new JingleConnectionManager(
 204			this);
 205	public OnContactStatusChanged onContactStatusChanged = new OnContactStatusChanged() {
 206
 207		@Override
 208		public void onContactStatusChanged(Contact contact, boolean online) {
 209			Conversation conversation = find(getConversations(), contact);
 210			if (conversation != null) {
 211				if (online) {
 212					conversation.endOtrIfNeeded();
 213					if (contact.getPresences().size() == 1) {
 214						sendUnsentMessages(conversation);
 215					}
 216				} else {
 217					//check if the resource we are haveing a conversation with is still online
 218					if (conversation.hasValidOtrSession()) {
 219						String otrResource = conversation.getOtrSession().getSessionID().getUserID();
 220						if (!(Arrays.asList(contact.getPresences().toResourceArray()).contains(otrResource))) {
 221							conversation.endOtrIfNeeded();
 222						}
 223					}
 224				}
 225			}
 226		}
 227	};
 228	private HttpConnectionManager mHttpConnectionManager = new HttpConnectionManager(
 229			this);
 230	private AvatarService mAvatarService = new AvatarService(this);
 231	private MessageArchiveService mMessageArchiveService = new MessageArchiveService(this);
 232	private PushManagementService mPushManagementService = new PushManagementService(this);
 233	private OnConversationUpdate mOnConversationUpdate = null;
 234
 235
 236	private final ConversationsFileObserver fileObserver = new ConversationsFileObserver(
 237			Environment.getExternalStorageDirectory().getAbsolutePath()
 238	) {
 239		@Override
 240		public void onEvent(int event, String path) {
 241			markFileDeleted(path);
 242		}
 243	};
 244	private final OnJinglePacketReceived jingleListener = new OnJinglePacketReceived() {
 245
 246		@Override
 247		public void onJinglePacketReceived(Account account, JinglePacket packet) {
 248			mJingleConnectionManager.deliverPacket(account, packet);
 249		}
 250	};
 251	private final OnMessageAcknowledged mOnMessageAcknowledgedListener = new OnMessageAcknowledged() {
 252
 253		@Override
 254		public void onMessageAcknowledged(Account account, String uuid) {
 255			for (final Conversation conversation : getConversations()) {
 256				if (conversation.getAccount() == account) {
 257					Message message = conversation.findUnsentMessageWithUuid(uuid);
 258					if (message != null) {
 259						markMessage(message, Message.STATUS_SEND);
 260					}
 261				}
 262			}
 263		}
 264	};
 265	private int convChangedListenerCount = 0;
 266	private OnShowErrorToast mOnShowErrorToast = null;
 267	private int showErrorToastListenerCount = 0;
 268	private int unreadCount = -1;
 269	private OnAccountUpdate mOnAccountUpdate = null;
 270	private OnCaptchaRequested mOnCaptchaRequested = null;
 271	private int accountChangedListenerCount = 0;
 272	private int captchaRequestedListenerCount = 0;
 273	private OnRosterUpdate mOnRosterUpdate = null;
 274	private OnUpdateBlocklist mOnUpdateBlocklist = null;
 275	private int updateBlocklistListenerCount = 0;
 276	private int rosterChangedListenerCount = 0;
 277	private OnMucRosterUpdate mOnMucRosterUpdate = null;
 278	private int mucRosterChangedListenerCount = 0;
 279	private OnKeyStatusUpdated mOnKeyStatusUpdated = null;
 280	private int keyStatusUpdatedListenerCount = 0;
 281	private AtomicLong mLastExpiryRun = new AtomicLong(0);
 282	private SecureRandom mRandom;
 283	private LruCache<Pair<String,String>,ServiceDiscoveryResult> discoCache = new LruCache<>(20);
 284	private final OnBindListener mOnBindListener = new OnBindListener() {
 285
 286		@Override
 287		public void onBind(final Account account) {
 288			synchronized (mInProgressAvatarFetches) {
 289				for (Iterator<String> iterator = mInProgressAvatarFetches.iterator(); iterator.hasNext(); ) {
 290					final String KEY = iterator.next();
 291					if (KEY.startsWith(account.getJid().toBareJid() + "_")) {
 292						iterator.remove();
 293					}
 294				}
 295			}
 296			account.getRoster().clearPresences();
 297			mJingleConnectionManager.cancelInTransmission();
 298			fetchRosterFromServer(account);
 299			fetchBookmarks(account);
 300			sendPresence(account);
 301			if (mPushManagementService.available(account)) {
 302				mPushManagementService.registerPushTokenOnServer(account);
 303			}
 304			connectMultiModeConversations(account);
 305			syncDirtyContacts(account);
 306		}
 307	};
 308	private OnStatusChanged statusListener = new OnStatusChanged() {
 309
 310		@Override
 311		public void onStatusChanged(final Account account) {
 312			XmppConnection connection = account.getXmppConnection();
 313			if (mOnAccountUpdate != null) {
 314				mOnAccountUpdate.onAccountUpdate();
 315			}
 316			if (account.getStatus() == Account.State.ONLINE) {
 317				synchronized (mLowPingTimeoutMode) {
 318					if (mLowPingTimeoutMode.remove(account.getJid().toBareJid())) {
 319						Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": leaving low ping timeout mode");
 320					}
 321				}
 322				if (account.setShowErrorNotification(true)) {
 323					databaseBackend.updateAccount(account);
 324				}
 325				mMessageArchiveService.executePendingQueries(account);
 326				if (connection != null && connection.getFeatures().csi()) {
 327					if (checkListeners()) {
 328						Log.d(Config.LOGTAG, account.getJid().toBareJid() + " sending csi//inactive");
 329						connection.sendInactive();
 330					} else {
 331						Log.d(Config.LOGTAG, account.getJid().toBareJid() + " sending csi//active");
 332						connection.sendActive();
 333					}
 334				}
 335				List<Conversation> conversations = getConversations();
 336				for (Conversation conversation : conversations) {
 337					if (conversation.getAccount() == account
 338							&& !account.pendingConferenceJoins.contains(conversation)) {
 339						if (!conversation.startOtrIfNeeded()) {
 340							Log.d(Config.LOGTAG,account.getJid().toBareJid()+": couldn't start OTR with "+conversation.getContact().getJid()+" when needed");
 341						}
 342						sendUnsentMessages(conversation);
 343					}
 344				}
 345				for (Conversation conversation : account.pendingConferenceLeaves) {
 346					leaveMuc(conversation);
 347				}
 348				account.pendingConferenceLeaves.clear();
 349				for (Conversation conversation : account.pendingConferenceJoins) {
 350					joinMuc(conversation);
 351				}
 352				account.pendingConferenceJoins.clear();
 353				scheduleWakeUpCall(Config.PING_MAX_INTERVAL, account.getUuid().hashCode());
 354			} else {
 355				if (account.getStatus() == Account.State.OFFLINE || account.getStatus() == Account.State.DISABLED) {
 356					resetSendingToWaiting(account);
 357					if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 358						synchronized (mLowPingTimeoutMode) {
 359							if (mLowPingTimeoutMode.contains(account.getJid().toBareJid())) {
 360								Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": went into offline state during low ping mode. reconnecting now");
 361								reconnectAccount(account, true, false);
 362							} else {
 363								int timeToReconnect = mRandom.nextInt(10) + 2;
 364								scheduleWakeUpCall(timeToReconnect, account.getUuid().hashCode());
 365							}
 366						}
 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)
 372						&& (account.getStatus() != Account.State.NO_INTERNET)) {
 373					resetSendingToWaiting(account);
 374					if (connection != null) {
 375						int next = connection.getTimeToNextAttempt();
 376						Log.d(Config.LOGTAG, account.getJid().toBareJid()
 377								+ ": error connecting account. try again in "
 378								+ next + "s for the "
 379								+ (connection.getAttempt() + 1) + " time");
 380						scheduleWakeUpCall(next, account.getUuid().hashCode());
 381					}
 382				}
 383			}
 384			getNotificationService().updateErrorNotification();
 385		}
 386	};
 387	private OpenPgpServiceConnection pgpServiceConnection;
 388	private PgpEngine mPgpEngine = null;
 389	private WakeLock wakeLock;
 390	private PowerManager pm;
 391	private LruCache<String, Bitmap> mBitmapCache;
 392	private EventReceiver mEventReceiver = new EventReceiver();
 393
 394	private boolean mRestoredFromDatabase = false;
 395
 396	private static String generateFetchKey(Account account, final Avatar avatar) {
 397		return account.getJid().toBareJid() + "_" + avatar.owner + "_" + avatar.sha1sum;
 398	}
 399
 400	public boolean areMessagesInitialized() {
 401		return this.mRestoredFromDatabase;
 402	}
 403
 404	public PgpEngine getPgpEngine() {
 405		if (!Config.supportOpenPgp()) {
 406			return null;
 407		} else if (pgpServiceConnection != null && pgpServiceConnection.isBound()) {
 408			if (this.mPgpEngine == null) {
 409				this.mPgpEngine = new PgpEngine(new OpenPgpApi(
 410						getApplicationContext(),
 411						pgpServiceConnection.getService()), this);
 412			}
 413			return mPgpEngine;
 414		} else {
 415			return null;
 416		}
 417
 418	}
 419
 420	public OpenPgpApi getOpenPgpApi() {
 421		if (!Config.supportOpenPgp()) {
 422			return null;
 423		} else if (pgpServiceConnection != null && pgpServiceConnection.isBound()) {
 424			return new OpenPgpApi(this, pgpServiceConnection.getService());
 425		} else {
 426			return null;
 427		}
 428	}
 429
 430	public FileBackend getFileBackend() {
 431		return this.fileBackend;
 432	}
 433
 434	public AvatarService getAvatarService() {
 435		return this.mAvatarService;
 436	}
 437
 438	public void attachLocationToConversation(final Conversation conversation,
 439											 final Uri uri,
 440											 final UiCallback<Message> callback) {
 441		int encryption = conversation.getNextEncryption();
 442		if (encryption == Message.ENCRYPTION_PGP) {
 443			encryption = Message.ENCRYPTION_DECRYPTED;
 444		}
 445		Message message = new Message(conversation, uri.toString(), encryption);
 446		if (conversation.getNextCounterpart() != null) {
 447			message.setCounterpart(conversation.getNextCounterpart());
 448		}
 449		if (encryption == Message.ENCRYPTION_DECRYPTED) {
 450			getPgpEngine().encrypt(message, callback);
 451		} else {
 452			callback.success(message);
 453		}
 454	}
 455
 456	public void attachFileToConversation(final Conversation conversation,
 457										 final Uri uri,
 458										 final UiCallback<Message> callback) {
 459		if (FileBackend.weOwnFile(this, uri)) {
 460			Log.d(Config.LOGTAG,"trying to attach file that belonged to us");
 461			callback.error(R.string.security_error_invalid_file_access, null);
 462			return;
 463		}
 464		final Message message;
 465		if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 466			message = new Message(conversation, "", Message.ENCRYPTION_DECRYPTED);
 467		} else {
 468			message = new Message(conversation, "", conversation.getNextEncryption());
 469		}
 470		message.setCounterpart(conversation.getNextCounterpart());
 471		message.setType(Message.TYPE_FILE);
 472		mFileAddingExecutor.execute(new Runnable() {
 473
 474			private void processAsFile() {
 475				final String path = getFileBackend().getOriginalPath(uri);
 476				if (path != null) {
 477					message.setRelativeFilePath(path);
 478					getFileBackend().updateFileParams(message);
 479					if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 480						getPgpEngine().encrypt(message, callback);
 481					} else {
 482						callback.success(message);
 483					}
 484				} else {
 485					try {
 486						getFileBackend().copyFileToPrivateStorage(message, uri);
 487						getFileBackend().updateFileParams(message);
 488						if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 489							final PgpEngine pgpEngine = getPgpEngine();
 490							if (pgpEngine != null) {
 491								pgpEngine.encrypt(message, callback);
 492							} else if (callback != null) {
 493								callback.error(R.string.unable_to_connect_to_keychain, null);
 494							}
 495						} else {
 496							callback.success(message);
 497						}
 498					} catch (FileBackend.FileCopyException e) {
 499						callback.error(e.getResId(), message);
 500					}
 501				}
 502			}
 503
 504			private void processAsVideo() throws FileNotFoundException {
 505				Log.d(Config.LOGTAG,"processing file as video");
 506				message.setRelativeFilePath(message.getUuid() + ".mp4");
 507				final DownloadableFile file = getFileBackend().getFile(message);
 508				file.getParentFile().mkdirs();
 509				ParcelFileDescriptor parcelFileDescriptor = getContentResolver().openFileDescriptor(uri, "r");
 510				FileDescriptor fileDescriptor = parcelFileDescriptor.getFileDescriptor();
 511				final ArrayList<Integer> progressTracker = new ArrayList<>();
 512				final UiInformableCallback<Message> informableCallback;
 513				if (callback instanceof UiInformableCallback) {
 514					informableCallback = (UiInformableCallback<Message>) callback;
 515				} else {
 516					informableCallback = null;
 517				}
 518				MediaTranscoder.Listener listener = new MediaTranscoder.Listener() {
 519					@Override
 520					public void onTranscodeProgress(double progress) {
 521						int p = ((int) Math.round(progress * 100) / 20) * 20;
 522						if (!progressTracker.contains(p) && p != 100 && p != 0) {
 523							progressTracker.add(p);
 524							if (informableCallback != null) {
 525
 526								informableCallback.inform(getString(R.string.transcoding_video_progress, p));
 527							}
 528						}
 529					}
 530
 531					@Override
 532					public void onTranscodeCompleted() {
 533						if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 534							getPgpEngine().encrypt(message, callback);
 535						} else {
 536							callback.success(message);
 537						}
 538					}
 539
 540					@Override
 541					public void onTranscodeCanceled() {
 542						processAsFile();
 543					}
 544
 545					@Override
 546					public void onTranscodeFailed(Exception e) {
 547						Log.d(Config.LOGTAG,"video transcoding failed "+e.getMessage());
 548						processAsFile();
 549					}
 550				};
 551				MediaTranscoder.getInstance().transcodeVideo(fileDescriptor, file.getAbsolutePath(),
 552						MediaFormatStrategyPresets.createAndroid720pStrategy(), listener);
 553			}
 554
 555			@Override
 556			public void run() {
 557				final String mimeType = MimeUtils.guessMimeTypeFromUri(XmppConnectionService.this, uri);
 558				if (mimeType != null && mimeType.startsWith("video/") && Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
 559					try {
 560						processAsVideo();
 561					} catch (Throwable e) {
 562						processAsFile();
 563					}
 564				} else {
 565					processAsFile();
 566				}
 567
 568			}
 569		});
 570	}
 571
 572	public void attachImageToConversation(final Conversation conversation, final Uri uri, final UiCallback<Message> callback) {
 573		if (FileBackend.weOwnFile(this, uri)) {
 574			Log.d(Config.LOGTAG,"trying to attach file that belonged to us");
 575			callback.error(R.string.security_error_invalid_file_access, null);
 576			return;
 577		}
 578
 579		final String mimeType = MimeUtils.guessMimeTypeFromUri(this, uri);
 580		final String compressPictures = getCompressPicturesPreference();
 581
 582		if ("never".equals(compressPictures)
 583				|| ("auto".equals(compressPictures) && getFileBackend().useImageAsIs(uri))
 584				|| (mimeType != null && mimeType.endsWith("/gif"))) {
 585			Log.d(Config.LOGTAG,conversation.getAccount().getJid().toBareJid()+ ": not compressing picture. sending as file");
 586			attachFileToConversation(conversation, uri, callback);
 587			return;
 588		}
 589		final Message message;
 590		if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 591			message = new Message(conversation, "", Message.ENCRYPTION_DECRYPTED);
 592		} else {
 593			message = new Message(conversation, "", conversation.getNextEncryption());
 594		}
 595		message.setCounterpart(conversation.getNextCounterpart());
 596		message.setType(Message.TYPE_IMAGE);
 597		mFileAddingExecutor.execute(new Runnable() {
 598
 599			@Override
 600			public void run() {
 601				try {
 602					getFileBackend().copyImageToPrivateStorage(message, uri);
 603					if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 604						final PgpEngine pgpEngine = getPgpEngine();
 605						if (pgpEngine != null) {
 606							pgpEngine.encrypt(message, callback);
 607						} else if (callback != null){
 608							callback.error(R.string.unable_to_connect_to_keychain, null);
 609						}
 610					} else {
 611						callback.success(message);
 612					}
 613				} catch (final FileBackend.FileCopyException e) {
 614					callback.error(e.getResId(), message);
 615				}
 616			}
 617		});
 618	}
 619
 620	public Conversation find(Bookmark bookmark) {
 621		return find(bookmark.getAccount(), bookmark.getJid());
 622	}
 623
 624	public Conversation find(final Account account, final Jid jid) {
 625		return find(getConversations(), account, jid);
 626	}
 627
 628	@Override
 629	public int onStartCommand(Intent intent, int flags, int startId) {
 630		final String action = intent == null ? null : intent.getAction();
 631		String pushedAccountHash = null;
 632		boolean interactive = false;
 633		if (action != null) {
 634			final Conversation c = findConversationByUuid(intent.getStringExtra("uuid"));
 635			switch (action) {
 636				case ConnectivityManager.CONNECTIVITY_ACTION:
 637					if (hasInternetConnection() && Config.RESET_ATTEMPT_COUNT_ON_NETWORK_CHANGE) {
 638						resetAllAttemptCounts(true, false);
 639					}
 640					break;
 641				case ACTION_MERGE_PHONE_CONTACTS:
 642					if (mRestoredFromDatabase) {
 643						loadPhoneContacts();
 644					}
 645					return START_STICKY;
 646				case Intent.ACTION_SHUTDOWN:
 647					logoutAndSave(true);
 648					return START_NOT_STICKY;
 649				case ACTION_CLEAR_NOTIFICATION:
 650					if (c != null) {
 651						mNotificationService.clear(c);
 652					} else {
 653						mNotificationService.clear();
 654					}
 655					break;
 656				case ACTION_DISABLE_FOREGROUND:
 657					getPreferences().edit().putBoolean(SettingsActivity.KEEP_FOREGROUND_SERVICE, false).commit();
 658					toggleForegroundService();
 659					break;
 660				case ACTION_DISMISS_ERROR_NOTIFICATIONS:
 661					dismissErrorNotifications();
 662					break;
 663				case ACTION_TRY_AGAIN:
 664					resetAllAttemptCounts(false, true);
 665					interactive = true;
 666					break;
 667				case ACTION_REPLY_TO_CONVERSATION:
 668					Bundle remoteInput = RemoteInput.getResultsFromIntent(intent);
 669					if (remoteInput != null && c != null) {
 670						final CharSequence body = remoteInput.getCharSequence("text_reply");
 671						if (body != null && body.length() > 0) {
 672							directReply(c, body.toString(),intent.getBooleanExtra("dismiss_notification",false));
 673						}
 674					}
 675					break;
 676				case AudioManager.RINGER_MODE_CHANGED_ACTION:
 677					if (xaOnSilentMode()) {
 678						refreshAllPresences();
 679					}
 680					break;
 681				case Intent.ACTION_SCREEN_ON:
 682					deactivateGracePeriod();
 683				case Intent.ACTION_SCREEN_OFF:
 684					if (awayWhenScreenOff()) {
 685						refreshAllPresences();
 686					}
 687					break;
 688				case ACTION_GCM_TOKEN_REFRESH:
 689					refreshAllGcmTokens();
 690					break;
 691				case ACTION_IDLE_PING:
 692					if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 693						scheduleNextIdlePing();
 694					}
 695					break;
 696				case ACTION_GCM_MESSAGE_RECEIVED:
 697					Log.d(Config.LOGTAG,"gcm push message arrived in service. extras="+intent.getExtras());
 698					pushedAccountHash = intent.getStringExtra("account");
 699					break;
 700			}
 701		}
 702		synchronized (this) {
 703			this.wakeLock.acquire();
 704			boolean pingNow = ConnectivityManager.CONNECTIVITY_ACTION.equals(action);
 705			HashSet<Account> pingCandidates = new HashSet<>();
 706			for (Account account : accounts) {
 707				pingNow |= processAccountState(account,
 708						interactive,
 709						"ui".equals(action),
 710						CryptoHelper.getAccountFingerprint(account).equals(pushedAccountHash),
 711						pingCandidates);
 712			}
 713			if (pingNow) {
 714				for (Account account : pingCandidates) {
 715					final boolean lowTimeout = mLowPingTimeoutMode.contains(account.getJid().toBareJid());
 716					account.getXmppConnection().sendPing();
 717					Log.d(Config.LOGTAG, account.getJid().toBareJid() + " send ping (action=" + action + ",lowTimeout=" + Boolean.toString(lowTimeout) + ")");
 718					scheduleWakeUpCall(lowTimeout ? Config.LOW_PING_TIMEOUT : Config.PING_TIMEOUT, account.getUuid().hashCode());
 719				}
 720			}
 721			if (wakeLock.isHeld()) {
 722				try {
 723					wakeLock.release();
 724				} catch (final RuntimeException ignored) {
 725				}
 726			}
 727		}
 728		if (SystemClock.elapsedRealtime() - mLastExpiryRun.get() >= Config.EXPIRY_INTERVAL) {
 729			expireOldMessages();
 730		}
 731		return START_STICKY;
 732	}
 733
 734	private boolean processAccountState(Account account, boolean interactive, boolean isUiAction, boolean isAccountPushed, HashSet<Account> pingCandidates) {
 735		boolean pingNow = false;
 736		if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 737			if (!hasInternetConnection()) {
 738				account.setStatus(Account.State.NO_INTERNET);
 739				if (statusListener != null) {
 740					statusListener.onStatusChanged(account);
 741				}
 742			} else {
 743				if (account.getStatus() == Account.State.NO_INTERNET) {
 744					account.setStatus(Account.State.OFFLINE);
 745					if (statusListener != null) {
 746						statusListener.onStatusChanged(account);
 747					}
 748				}
 749				if (account.getStatus() == Account.State.ONLINE) {
 750					synchronized (mLowPingTimeoutMode) {
 751						long lastReceived = account.getXmppConnection().getLastPacketReceived();
 752						long lastSent = account.getXmppConnection().getLastPingSent();
 753						long pingInterval = isUiAction ? Config.PING_MIN_INTERVAL * 1000 : Config.PING_MAX_INTERVAL * 1000;
 754						long msToNextPing = (Math.max(lastReceived, lastSent) + pingInterval) - SystemClock.elapsedRealtime();
 755						int pingTimeout = mLowPingTimeoutMode.contains(account.getJid().toBareJid()) ? Config.LOW_PING_TIMEOUT * 1000 : Config.PING_TIMEOUT * 1000;
 756						long pingTimeoutIn = (lastSent + pingTimeout) - SystemClock.elapsedRealtime();
 757						if (lastSent > lastReceived) {
 758							if (pingTimeoutIn < 0) {
 759								Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": ping timeout");
 760								this.reconnectAccount(account, true, interactive);
 761							} else {
 762								int secs = (int) (pingTimeoutIn / 1000);
 763								this.scheduleWakeUpCall(secs, account.getUuid().hashCode());
 764							}
 765						} else {
 766							pingCandidates.add(account);
 767							if (isAccountPushed) {
 768								pingNow = true;
 769								if (mLowPingTimeoutMode.add(account.getJid().toBareJid())) {
 770									Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": entering low ping timeout mode");
 771								}
 772							} else if (msToNextPing <= 0) {
 773								pingNow = true;
 774							} else {
 775								this.scheduleWakeUpCall((int) (msToNextPing / 1000), account.getUuid().hashCode());
 776								if (mLowPingTimeoutMode.remove(account.getJid().toBareJid())) {
 777									Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": leaving low ping timeout mode");
 778								}
 779							}
 780						}
 781					}
 782				} else if (account.getStatus() == Account.State.OFFLINE) {
 783					reconnectAccount(account, true, interactive);
 784				} else if (account.getStatus() == Account.State.CONNECTING) {
 785					long secondsSinceLastConnect = (SystemClock.elapsedRealtime() - account.getXmppConnection().getLastConnect()) / 1000;
 786					long secondsSinceLastDisco = (SystemClock.elapsedRealtime() - account.getXmppConnection().getLastDiscoStarted()) / 1000;
 787					long discoTimeout = Config.CONNECT_DISCO_TIMEOUT - secondsSinceLastDisco;
 788					long timeout = Config.CONNECT_TIMEOUT - secondsSinceLastConnect;
 789					if (timeout < 0) {
 790						Log.d(Config.LOGTAG, account.getJid() + ": time out during connect reconnecting (secondsSinceLast="+secondsSinceLastConnect+")");
 791						account.getXmppConnection().resetAttemptCount(false);
 792						reconnectAccount(account, true, interactive);
 793					} else if (discoTimeout < 0) {
 794						account.getXmppConnection().sendDiscoTimeout();
 795						scheduleWakeUpCall((int) Math.min(timeout,discoTimeout), account.getUuid().hashCode());
 796					} else {
 797						scheduleWakeUpCall((int) Math.min(timeout,discoTimeout), account.getUuid().hashCode());
 798					}
 799				} else {
 800					if (account.getXmppConnection().getTimeToNextAttempt() <= 0) {
 801						reconnectAccount(account, true, interactive);
 802					}
 803				}
 804			}
 805		}
 806		return pingNow;
 807	}
 808
 809	public boolean isDataSaverDisabled() {
 810		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 811			ConnectivityManager connectivityManager = (ConnectivityManager) getSystemService(CONNECTIVITY_SERVICE);
 812			return !connectivityManager.isActiveNetworkMetered()
 813					|| connectivityManager.getRestrictBackgroundStatus() == ConnectivityManager.RESTRICT_BACKGROUND_STATUS_DISABLED;
 814		} else {
 815			return true;
 816		}
 817	}
 818
 819	private void directReply(Conversation conversation, String body, final boolean dismissAfterReply) {
 820		Message message = new Message(conversation,body,conversation.getNextEncryption());
 821		message.markUnread();
 822		if (message.getEncryption() == Message.ENCRYPTION_PGP) {
 823			getPgpEngine().encrypt(message, new UiCallback<Message>() {
 824				@Override
 825				public void success(Message message) {
 826					message.setEncryption(Message.ENCRYPTION_DECRYPTED);
 827					sendMessage(message);
 828					if (dismissAfterReply) {
 829						markRead(message.getConversation(),true);
 830					} else {
 831						mNotificationService.pushFromDirectReply(message);
 832					}
 833				}
 834
 835				@Override
 836				public void error(int errorCode, Message object) {
 837
 838				}
 839
 840				@Override
 841				public void userInputRequried(PendingIntent pi, Message object) {
 842
 843				}
 844			});
 845		} else {
 846			sendMessage(message);
 847			if (dismissAfterReply) {
 848				markRead(conversation,true);
 849			} else {
 850				mNotificationService.pushFromDirectReply(message);
 851			}
 852		}
 853	}
 854
 855	private boolean xaOnSilentMode() {
 856		return getPreferences().getBoolean("xa_on_silent_mode", false);
 857	}
 858
 859	private boolean manuallyChangePresence() {
 860		return getPreferences().getBoolean(SettingsActivity.MANUALLY_CHANGE_PRESENCE, false);
 861	}
 862
 863	private boolean treatVibrateAsSilent() {
 864		return getPreferences().getBoolean(SettingsActivity.TREAT_VIBRATE_AS_SILENT, false);
 865	}
 866
 867	private boolean awayWhenScreenOff() {
 868		return getPreferences().getBoolean(SettingsActivity.AWAY_WHEN_SCREEN_IS_OFF, false);
 869	}
 870
 871	private String getCompressPicturesPreference() {
 872		return getPreferences().getString("picture_compression", "auto");
 873	}
 874
 875	private Presence.Status getTargetPresence() {
 876		if (xaOnSilentMode() && isPhoneSilenced()) {
 877			return Presence.Status.XA;
 878		} else if (awayWhenScreenOff() && !isInteractive()) {
 879			return Presence.Status.AWAY;
 880		} else {
 881			return Presence.Status.ONLINE;
 882		}
 883	}
 884
 885	@SuppressLint("NewApi")
 886	@SuppressWarnings("deprecation")
 887	public boolean isInteractive() {
 888		final PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 889
 890		final boolean isScreenOn;
 891		if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
 892			isScreenOn = pm.isScreenOn();
 893		} else {
 894			isScreenOn = pm.isInteractive();
 895		}
 896		return isScreenOn;
 897	}
 898
 899	private boolean isPhoneSilenced() {
 900		AudioManager audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
 901		try {
 902			if (treatVibrateAsSilent()) {
 903				return audioManager.getRingerMode() != AudioManager.RINGER_MODE_NORMAL;
 904			} else {
 905				return audioManager.getRingerMode() == AudioManager.RINGER_MODE_SILENT;
 906			}
 907		} catch (Throwable throwable) {
 908			Log.d(Config.LOGTAG,"platform bug in isPhoneSilenced ("+ throwable.getMessage()+")");
 909			return false;
 910		}
 911	}
 912
 913	private void resetAllAttemptCounts(boolean reallyAll, boolean retryImmediately) {
 914		Log.d(Config.LOGTAG, "resetting all attempt counts");
 915		for (Account account : accounts) {
 916			if (account.hasErrorStatus() || reallyAll) {
 917				final XmppConnection connection = account.getXmppConnection();
 918				if (connection != null) {
 919					connection.resetAttemptCount(retryImmediately);
 920				}
 921			}
 922			if (account.setShowErrorNotification(true)) {
 923				databaseBackend.updateAccount(account);
 924			}
 925		}
 926		mNotificationService.updateErrorNotification();
 927	}
 928
 929	private void dismissErrorNotifications() {
 930		for (final Account account : this.accounts) {
 931			if (account.hasErrorStatus()) {
 932				Log.d(Config.LOGTAG,account.getJid().toBareJid()+": dismissing error notification");
 933				if (account.setShowErrorNotification(false)) {
 934					databaseBackend.updateAccount(account);
 935				}
 936			}
 937		}
 938	}
 939
 940	private void expireOldMessages() {
 941		expireOldMessages(false);
 942	}
 943
 944	public void expireOldMessages(final boolean resetHasMessagesLeftOnServer) {
 945		mLastExpiryRun.set(SystemClock.elapsedRealtime());
 946		mDatabaseExecutor.execute(new Runnable() {
 947			@Override
 948			public void run() {
 949				long timestamp = getAutomaticMessageDeletionDate();
 950				if (timestamp > 0) {
 951					databaseBackend.expireOldMessages(timestamp);
 952					synchronized (XmppConnectionService.this.conversations) {
 953						for (Conversation conversation : XmppConnectionService.this.conversations) {
 954							conversation.expireOldMessages(timestamp);
 955							if (resetHasMessagesLeftOnServer) {
 956								conversation.messagesLoaded.set(true);
 957								conversation.setHasMessagesLeftOnServer(true);
 958							}
 959						}
 960					}
 961					updateConversationUi();
 962				}
 963			}
 964		});
 965	}
 966
 967	public boolean hasInternetConnection() {
 968		ConnectivityManager cm = (ConnectivityManager) getApplicationContext()
 969				.getSystemService(Context.CONNECTIVITY_SERVICE);
 970		NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
 971		return activeNetwork != null && activeNetwork.isConnected();
 972	}
 973
 974	@SuppressLint("TrulyRandom")
 975	@Override
 976	public void onCreate() {
 977		ExceptionHelper.init(getApplicationContext());
 978		PRNGFixes.apply();
 979		this.mRandom = new SecureRandom();
 980		updateMemorizingTrustmanager();
 981		final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024);
 982		final int cacheSize = maxMemory / 8;
 983		this.mBitmapCache = new LruCache<String, Bitmap>(cacheSize) {
 984			@Override
 985			protected int sizeOf(final String key, final Bitmap bitmap) {
 986				return bitmap.getByteCount() / 1024;
 987			}
 988		};
 989
 990		this.databaseBackend = DatabaseBackend.getInstance(getApplicationContext());
 991		this.accounts = databaseBackend.getAccounts();
 992
 993		if (Config.FREQUENT_RESTARTS_THRESHOLD != 0
 994				&& Config.FREQUENT_RESTARTS_DETECTION_WINDOW != 0
 995				&& !keepForegroundService()
 996				&& databaseBackend.startTimeCountExceedsThreshold()) {
 997			getPreferences().edit().putBoolean(SettingsActivity.KEEP_FOREGROUND_SERVICE,true).commit();
 998			Log.d(Config.LOGTAG,"number of restarts exceeds threshold. enabling foreground service");
 999		}
1000
1001		restoreFromDatabase();
1002
1003		getContentResolver().registerContentObserver(ContactsContract.Contacts.CONTENT_URI, true, contactObserver);
1004		new Thread(new Runnable() {
1005			@Override
1006			public void run() {
1007				fileObserver.startWatching();
1008			}
1009		}).start();
1010		if (Config.supportOpenPgp()) {
1011			this.pgpServiceConnection = new OpenPgpServiceConnection(getApplicationContext(), "org.sufficientlysecure.keychain", new OpenPgpServiceConnection.OnBound() {
1012				@Override
1013				public void onBound(IOpenPgpService2 service) {
1014					for (Account account : accounts) {
1015						final PgpDecryptionService pgp = account.getPgpDecryptionService();
1016						if(pgp != null) {
1017							pgp.continueDecryption(true);
1018						}
1019					}
1020				}
1021
1022				@Override
1023				public void onError(Exception e) {
1024				}
1025			});
1026			this.pgpServiceConnection.bindToService();
1027		}
1028
1029		this.pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
1030		this.wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "XmppConnectionService");
1031
1032		toggleForegroundService();
1033		updateUnreadCountBadge();
1034		toggleScreenEventReceiver();
1035		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1036			scheduleNextIdlePing();
1037		}
1038		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
1039			registerReceiver(this.mEventReceiver,new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION));
1040		}
1041	}
1042
1043	@Override
1044	public void onTrimMemory(int level) {
1045		super.onTrimMemory(level);
1046		if (level >= TRIM_MEMORY_COMPLETE) {
1047			Log.d(Config.LOGTAG, "clear cache due to low memory");
1048			getBitmapCache().evictAll();
1049		}
1050	}
1051
1052	@Override
1053	public void onDestroy() {
1054		try {
1055			unregisterReceiver(this.mEventReceiver);
1056		} catch (IllegalArgumentException e) {
1057			//ignored
1058		}
1059		fileObserver.stopWatching();
1060		super.onDestroy();
1061	}
1062
1063	public void toggleScreenEventReceiver() {
1064		if (awayWhenScreenOff() && !manuallyChangePresence()) {
1065			final IntentFilter filter = new IntentFilter(Intent.ACTION_SCREEN_ON);
1066			filter.addAction(Intent.ACTION_SCREEN_OFF);
1067			registerReceiver(this.mEventReceiver, filter);
1068		} else {
1069			try {
1070				unregisterReceiver(this.mEventReceiver);
1071			} catch (IllegalArgumentException e) {
1072				//ignored
1073			}
1074		}
1075	}
1076
1077	public void toggleForegroundService() {
1078		if (keepForegroundService()) {
1079			startForeground(NotificationService.FOREGROUND_NOTIFICATION_ID, this.mNotificationService.createForegroundNotification());
1080		} else {
1081			stopForeground(true);
1082		}
1083	}
1084
1085	private boolean keepForegroundService() {
1086		return getPreferences().getBoolean(SettingsActivity.KEEP_FOREGROUND_SERVICE,false);
1087	}
1088
1089	@Override
1090	public void onTaskRemoved(final Intent rootIntent) {
1091		super.onTaskRemoved(rootIntent);
1092		if (!keepForegroundService()) {
1093			this.logoutAndSave(false);
1094		} else {
1095			Log.d(Config.LOGTAG,"ignoring onTaskRemoved because foreground service is activated");
1096		}
1097	}
1098
1099	private void logoutAndSave(boolean stop) {
1100		int activeAccounts = 0;
1101		databaseBackend.clearStartTimeCounter(true); // regular swipes don't count towards restart counter
1102		for (final Account account : accounts) {
1103			if (account.getStatus() != Account.State.DISABLED) {
1104				activeAccounts++;
1105			}
1106			databaseBackend.writeRoster(account.getRoster());
1107			if (account.getXmppConnection() != null) {
1108				new Thread(new Runnable() {
1109					@Override
1110					public void run() {
1111						disconnect(account, false);
1112					}
1113				}).start();
1114			}
1115		}
1116		if (stop || activeAccounts == 0) {
1117			Log.d(Config.LOGTAG, "good bye");
1118			stopSelf();
1119		}
1120	}
1121
1122	public void scheduleWakeUpCall(int seconds, int requestCode) {
1123		final long timeToWake = SystemClock.elapsedRealtime() + (seconds < 0 ? 1 : seconds + 1) * 1000;
1124		AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
1125		Intent intent = new Intent(this, EventReceiver.class);
1126		intent.setAction("ping");
1127		PendingIntent alarmIntent = PendingIntent.getBroadcast(this, requestCode, intent, 0);
1128		alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake, alarmIntent);
1129	}
1130
1131	@TargetApi(Build.VERSION_CODES.M)
1132	private void scheduleNextIdlePing() {
1133		Log.d(Config.LOGTAG,"schedule next idle ping");
1134		AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
1135		Intent intent = new Intent(this, EventReceiver.class);
1136		intent.setAction(ACTION_IDLE_PING);
1137		alarmManager.setAndAllowWhileIdle(AlarmManager.ELAPSED_REALTIME_WAKEUP,
1138				SystemClock.elapsedRealtime()+(Config.IDLE_PING_INTERVAL * 1000),
1139				PendingIntent.getBroadcast(this,0,intent,0)
1140				);
1141	}
1142
1143	public XmppConnection createConnection(final Account account) {
1144		final SharedPreferences sharedPref = getPreferences();
1145		String resource;
1146		try {
1147			resource = sharedPref.getString("resource", getString(R.string.default_resource)).toLowerCase(Locale.ENGLISH);
1148			if (resource.trim().isEmpty()) {
1149				throw new Exception();
1150			}
1151		} catch (Exception e) {
1152			resource = "conversations";
1153		}
1154		account.setResource(resource);
1155		final XmppConnection connection = new XmppConnection(account, this);
1156		connection.setOnMessagePacketReceivedListener(this.mMessageParser);
1157		connection.setOnStatusChangedListener(this.statusListener);
1158		connection.setOnPresencePacketReceivedListener(this.mPresenceParser);
1159		connection.setOnUnregisteredIqPacketReceivedListener(this.mIqParser);
1160		connection.setOnJinglePacketReceivedListener(this.jingleListener);
1161		connection.setOnBindListener(this.mOnBindListener);
1162		connection.setOnMessageAcknowledgeListener(this.mOnMessageAcknowledgedListener);
1163		connection.addOnAdvancedStreamFeaturesAvailableListener(this.mMessageArchiveService);
1164		connection.addOnAdvancedStreamFeaturesAvailableListener(this.mAvatarService);
1165		AxolotlService axolotlService = account.getAxolotlService();
1166		if (axolotlService != null) {
1167			connection.addOnAdvancedStreamFeaturesAvailableListener(axolotlService);
1168		}
1169		return connection;
1170	}
1171
1172	public void sendChatState(Conversation conversation) {
1173		if (sendChatStates()) {
1174			MessagePacket packet = mMessageGenerator.generateChatState(conversation);
1175			sendMessagePacket(conversation.getAccount(), packet);
1176		}
1177	}
1178
1179	private void sendFileMessage(final Message message, final boolean delay) {
1180		Log.d(Config.LOGTAG, "send file message");
1181		final Account account = message.getConversation().getAccount();
1182		if (account.httpUploadAvailable(fileBackend.getFile(message,false).getSize())) {
1183			mHttpConnectionManager.createNewUploadConnection(message, delay);
1184		} else {
1185			mJingleConnectionManager.createNewConnection(message);
1186		}
1187	}
1188
1189	public void sendMessage(final Message message) {
1190		sendMessage(message, false, false);
1191	}
1192
1193	private void sendMessage(final Message message, final boolean resend, final boolean delay) {
1194		final Account account = message.getConversation().getAccount();
1195		if (account.setShowErrorNotification(true)) {
1196			databaseBackend.updateAccount(account);
1197			mNotificationService.updateErrorNotification();
1198		}
1199		final Conversation conversation = message.getConversation();
1200		account.deactivateGracePeriod();
1201		MessagePacket packet = null;
1202		final boolean addToConversation = (conversation.getMode() != Conversation.MODE_MULTI
1203				|| account.getServerIdentity() != XmppConnection.Identity.SLACK)
1204				&& !message.edited();
1205		boolean saveInDb = addToConversation;
1206		message.setStatus(Message.STATUS_WAITING);
1207
1208		if (!resend && message.getEncryption() != Message.ENCRYPTION_OTR) {
1209			message.getConversation().endOtrIfNeeded();
1210			message.getConversation().findUnsentMessagesWithEncryption(Message.ENCRYPTION_OTR,
1211					new Conversation.OnMessageFound() {
1212						@Override
1213						public void onMessageFound(Message message) {
1214							markMessage(message, Message.STATUS_SEND_FAILED);
1215						}
1216					});
1217		}
1218
1219		if (account.isOnlineAndConnected()) {
1220			switch (message.getEncryption()) {
1221				case Message.ENCRYPTION_NONE:
1222					if (message.needsUploading()) {
1223						if (account.httpUploadAvailable(fileBackend.getFile(message,false).getSize())
1224								|| message.fixCounterpart()) {
1225							this.sendFileMessage(message, delay);
1226						} else {
1227							break;
1228						}
1229					} else {
1230						packet = mMessageGenerator.generateChat(message);
1231					}
1232					break;
1233				case Message.ENCRYPTION_PGP:
1234				case Message.ENCRYPTION_DECRYPTED:
1235					if (message.needsUploading()) {
1236						if (account.httpUploadAvailable(fileBackend.getFile(message,false).getSize())
1237								|| message.fixCounterpart()) {
1238							this.sendFileMessage(message, delay);
1239						} else {
1240							break;
1241						}
1242					} else {
1243						packet = mMessageGenerator.generatePgpChat(message);
1244					}
1245					break;
1246				case Message.ENCRYPTION_OTR:
1247					SessionImpl otrSession = conversation.getOtrSession();
1248					if (otrSession != null && otrSession.getSessionStatus() == SessionStatus.ENCRYPTED) {
1249						try {
1250							message.setCounterpart(Jid.fromSessionID(otrSession.getSessionID()));
1251						} catch (InvalidJidException e) {
1252							break;
1253						}
1254						if (message.needsUploading()) {
1255							mJingleConnectionManager.createNewConnection(message);
1256						} else {
1257							packet = mMessageGenerator.generateOtrChat(message);
1258						}
1259					} else if (otrSession == null) {
1260						if (message.fixCounterpart()) {
1261							conversation.startOtrSession(message.getCounterpart().getResourcepart(), true);
1262						} else {
1263							Log.d(Config.LOGTAG,account.getJid().toBareJid()+": could not fix counterpart for OTR message to contact "+message.getContact().getJid());
1264							break;
1265						}
1266					} else {
1267						Log.d(Config.LOGTAG,account.getJid().toBareJid()+" OTR session with "+message.getContact()+" is in wrong state: "+otrSession.getSessionStatus().toString());
1268					}
1269					break;
1270				case Message.ENCRYPTION_AXOLOTL:
1271					message.setFingerprint(account.getAxolotlService().getOwnFingerprint());
1272					if (message.needsUploading()) {
1273						if (account.httpUploadAvailable(fileBackend.getFile(message,false).getSize())
1274								|| message.fixCounterpart()) {
1275							this.sendFileMessage(message, delay);
1276						} else {
1277							break;
1278						}
1279					} else {
1280						XmppAxolotlMessage axolotlMessage = account.getAxolotlService().fetchAxolotlMessageFromCache(message);
1281						if (axolotlMessage == null) {
1282							account.getAxolotlService().preparePayloadMessage(message, delay);
1283						} else {
1284							packet = mMessageGenerator.generateAxolotlChat(message, axolotlMessage);
1285						}
1286					}
1287					break;
1288
1289			}
1290			if (packet != null) {
1291				if (account.getXmppConnection().getFeatures().sm()
1292						|| (conversation.getMode() == Conversation.MODE_MULTI && message.getCounterpart().isBareJid())) {
1293					message.setStatus(Message.STATUS_UNSEND);
1294				} else {
1295					message.setStatus(Message.STATUS_SEND);
1296				}
1297			}
1298		} else {
1299			switch (message.getEncryption()) {
1300				case Message.ENCRYPTION_DECRYPTED:
1301					if (!message.needsUploading()) {
1302						String pgpBody = message.getEncryptedBody();
1303						String decryptedBody = message.getBody();
1304						message.setBody(pgpBody);
1305						message.setEncryption(Message.ENCRYPTION_PGP);
1306						if (message.edited()) {
1307							message.setBody(decryptedBody);
1308							message.setEncryption(Message.ENCRYPTION_DECRYPTED);
1309							databaseBackend.updateMessage(message, message.getEditedId());
1310							updateConversationUi();
1311							return;
1312						} else {
1313							databaseBackend.createMessage(message);
1314							saveInDb = false;
1315							message.setBody(decryptedBody);
1316							message.setEncryption(Message.ENCRYPTION_DECRYPTED);
1317						}
1318					}
1319					break;
1320				case Message.ENCRYPTION_OTR:
1321					if (!conversation.hasValidOtrSession() && message.getCounterpart() != null) {
1322						Log.d(Config.LOGTAG,account.getJid().toBareJid()+": create otr session without starting for "+message.getContact().getJid());
1323						conversation.startOtrSession(message.getCounterpart().getResourcepart(), false);
1324					}
1325					break;
1326				case Message.ENCRYPTION_AXOLOTL:
1327					message.setFingerprint(account.getAxolotlService().getOwnFingerprint());
1328					break;
1329			}
1330		}
1331
1332		if (resend) {
1333			if (packet != null && addToConversation) {
1334				if (account.getXmppConnection().getFeatures().sm()
1335						|| (conversation.getMode() == Conversation.MODE_MULTI && message.getCounterpart().isBareJid())) {
1336					markMessage(message, Message.STATUS_UNSEND);
1337				} else {
1338					markMessage(message, Message.STATUS_SEND);
1339				}
1340			}
1341		} else {
1342			if (addToConversation) {
1343				conversation.add(message);
1344			}
1345			if (saveInDb) {
1346				databaseBackend.createMessage(message);
1347			} else if (message.edited()) {
1348				databaseBackend.updateMessage(message, message.getEditedId());
1349			}
1350			updateConversationUi();
1351		}
1352		if (packet != null) {
1353			if (delay) {
1354				mMessageGenerator.addDelay(packet, message.getTimeSent());
1355			}
1356			if (conversation.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
1357				if (this.sendChatStates()) {
1358					packet.addChild(ChatState.toElement(conversation.getOutgoingChatState()));
1359				}
1360			}
1361			sendMessagePacket(account, packet);
1362		}
1363	}
1364
1365	private void sendUnsentMessages(final Conversation conversation) {
1366		conversation.findWaitingMessages(new Conversation.OnMessageFound() {
1367
1368			@Override
1369			public void onMessageFound(Message message) {
1370				resendMessage(message, true);
1371			}
1372		});
1373	}
1374
1375	public void resendMessage(final Message message, final boolean delay) {
1376		sendMessage(message, true, delay);
1377	}
1378
1379	public void fetchRosterFromServer(final Account account) {
1380		final IqPacket iqPacket = new IqPacket(IqPacket.TYPE.GET);
1381		if (!"".equals(account.getRosterVersion())) {
1382			Log.d(Config.LOGTAG, account.getJid().toBareJid()
1383					+ ": fetching roster version " + account.getRosterVersion());
1384		} else {
1385			Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": fetching roster");
1386		}
1387		iqPacket.query(Xmlns.ROSTER).setAttribute("ver", account.getRosterVersion());
1388		sendIqPacket(account, iqPacket, mIqParser);
1389	}
1390
1391	public void fetchBookmarks(final Account account) {
1392		final IqPacket iqPacket = new IqPacket(IqPacket.TYPE.GET);
1393		final Element query = iqPacket.query("jabber:iq:private");
1394		query.addChild("storage", "storage:bookmarks");
1395		final OnIqPacketReceived callback = new OnIqPacketReceived() {
1396
1397			@Override
1398			public void onIqPacketReceived(final Account account, final IqPacket packet) {
1399				if (packet.getType() == IqPacket.TYPE.RESULT) {
1400					final Element query = packet.query();
1401					final HashMap<Jid, Bookmark> bookmarks = new HashMap<>();
1402					final Element storage = query.findChild("storage", "storage:bookmarks");
1403					final boolean autojoin = respectAutojoin();
1404					if (storage != null) {
1405						for (final Element item : storage.getChildren()) {
1406							if (item.getName().equals("conference")) {
1407								final Bookmark bookmark = Bookmark.parse(item, account);
1408								Bookmark old = bookmarks.put(bookmark.getJid(), bookmark);
1409								if (old != null && old.getBookmarkName() != null && bookmark.getBookmarkName() == null) {
1410									bookmark.setBookmarkName(old.getBookmarkName());
1411								}
1412								Conversation conversation = find(bookmark);
1413								if (conversation != null) {
1414									conversation.setBookmark(bookmark);
1415								} else if (bookmark.autojoin() && bookmark.getJid() != null && autojoin) {
1416									conversation = findOrCreateConversation(
1417											account, bookmark.getJid(), true);
1418									conversation.setBookmark(bookmark);
1419									joinMuc(conversation);
1420								}
1421							}
1422						}
1423					}
1424					account.setBookmarks(new ArrayList<>(bookmarks.values()));
1425				} else {
1426					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": could not fetch bookmarks");
1427				}
1428			}
1429		};
1430		sendIqPacket(account, iqPacket, callback);
1431	}
1432
1433	public void pushBookmarks(Account account) {
1434		Log.d(Config.LOGTAG, account.getJid().toBareJid()+": pushing bookmarks");
1435		IqPacket iqPacket = new IqPacket(IqPacket.TYPE.SET);
1436		Element query = iqPacket.query("jabber:iq:private");
1437		Element storage = query.addChild("storage", "storage:bookmarks");
1438		for (Bookmark bookmark : account.getBookmarks()) {
1439			storage.addChild(bookmark);
1440		}
1441		sendIqPacket(account, iqPacket, mDefaultIqHandler);
1442	}
1443
1444	private void restoreFromDatabase() {
1445		synchronized (this.conversations) {
1446			final Map<String, Account> accountLookupTable = new Hashtable<>();
1447			for (Account account : this.accounts) {
1448				accountLookupTable.put(account.getUuid(), account);
1449			}
1450			this.conversations.addAll(databaseBackend.getConversations(Conversation.STATUS_AVAILABLE));
1451			for (Conversation conversation : this.conversations) {
1452				Account account = accountLookupTable.get(conversation.getAccountUuid());
1453				conversation.setAccount(account);
1454			}
1455			Runnable runnable = new Runnable() {
1456				@Override
1457				public void run() {
1458					long deletionDate = getAutomaticMessageDeletionDate();
1459					mLastExpiryRun.set(SystemClock.elapsedRealtime());
1460					if (deletionDate > 0) {
1461						Log.d(Config.LOGTAG, "deleting messages that are older than "+AbstractGenerator.getTimestamp(deletionDate));
1462						databaseBackend.expireOldMessages(deletionDate);
1463					}
1464					Log.d(Config.LOGTAG, "restoring roster");
1465					for (Account account : accounts) {
1466						databaseBackend.readRoster(account.getRoster());
1467						account.initAccountServices(XmppConnectionService.this); //roster needs to be loaded at this stage
1468					}
1469					getBitmapCache().evictAll();
1470					loadPhoneContacts();
1471					Log.d(Config.LOGTAG, "restoring messages");
1472					for (Conversation conversation : conversations) {
1473						conversation.addAll(0, databaseBackend.getMessages(conversation, Config.PAGE_SIZE));
1474						checkDeletedFiles(conversation);
1475						conversation.findUnsentTextMessages(new Conversation.OnMessageFound() {
1476
1477							@Override
1478							public void onMessageFound(Message message) {
1479								markMessage(message, Message.STATUS_WAITING);
1480							}
1481						});
1482						conversation.findUnreadMessages(new Conversation.OnMessageFound() {
1483							@Override
1484							public void onMessageFound(Message message) {
1485								mNotificationService.pushFromBacklog(message);
1486							}
1487						});
1488					}
1489					mNotificationService.finishBacklog(false);
1490					mRestoredFromDatabase = true;
1491					Log.d(Config.LOGTAG, "restored all messages");
1492					updateConversationUi();
1493				}
1494			};
1495			mDatabaseExecutor.execute(runnable);
1496		}
1497	}
1498
1499	public void loadPhoneContacts() {
1500		mContactMergerExecutor.execute(new Runnable() {
1501			@Override
1502			public void run() {
1503				PhoneHelper.loadPhoneContacts(XmppConnectionService.this, new OnPhoneContactsLoadedListener() {
1504					@Override
1505					public void onPhoneContactsLoaded(List<Bundle> phoneContacts) {
1506						Log.d(Config.LOGTAG, "start merging phone contacts with roster");
1507						for (Account account : accounts) {
1508							List<Contact> withSystemAccounts = account.getRoster().getWithSystemAccounts();
1509							for (Bundle phoneContact : phoneContacts) {
1510								Jid jid;
1511								try {
1512									jid = Jid.fromString(phoneContact.getString("jid"));
1513								} catch (final InvalidJidException e) {
1514									continue;
1515								}
1516								final Contact contact = account.getRoster().getContact(jid);
1517								String systemAccount = phoneContact.getInt("phoneid")
1518										+ "#"
1519										+ phoneContact.getString("lookup");
1520								contact.setSystemAccount(systemAccount);
1521								boolean needsCacheClean = contact.setPhotoUri(phoneContact.getString("photouri"));
1522								needsCacheClean |= contact.setSystemName(phoneContact.getString("displayname"));
1523								if (needsCacheClean) {
1524									getAvatarService().clear(contact);
1525								}
1526								withSystemAccounts.remove(contact);
1527							}
1528							for (Contact contact : withSystemAccounts) {
1529								contact.setSystemAccount(null);
1530								boolean needsCacheClean = contact.setPhotoUri(null);
1531								needsCacheClean |= contact.setSystemName(null);
1532								if (needsCacheClean) {
1533									getAvatarService().clear(contact);
1534								}
1535							}
1536						}
1537						Log.d(Config.LOGTAG, "finished merging phone contacts");
1538						updateAccountUi();
1539					}
1540				});
1541			}
1542		});
1543	}
1544
1545	public List<Conversation> getConversations() {
1546		return this.conversations;
1547	}
1548
1549	private void checkDeletedFiles(Conversation conversation) {
1550		conversation.findMessagesWithFiles(new Conversation.OnMessageFound() {
1551
1552			@Override
1553			public void onMessageFound(Message message) {
1554				if (!getFileBackend().isFileAvailable(message)) {
1555					message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
1556					final int s = message.getStatus();
1557					if (s == Message.STATUS_WAITING || s == Message.STATUS_OFFERED || s == Message.STATUS_UNSEND) {
1558						markMessage(message, Message.STATUS_SEND_FAILED);
1559					}
1560				}
1561			}
1562		});
1563	}
1564
1565	private void markFileDeleted(final String path) {
1566		Log.d(Config.LOGTAG,"deleted file "+path);
1567		for (Conversation conversation : getConversations()) {
1568			conversation.findMessagesWithFiles(new Conversation.OnMessageFound() {
1569				@Override
1570				public void onMessageFound(Message message) {
1571					DownloadableFile file = fileBackend.getFile(message);
1572					if (file.getAbsolutePath().equals(path)) {
1573						if (!file.exists()) {
1574							message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
1575							final int s = message.getStatus();
1576							if (s == Message.STATUS_WAITING || s == Message.STATUS_OFFERED || s == Message.STATUS_UNSEND) {
1577								markMessage(message, Message.STATUS_SEND_FAILED);
1578							} else {
1579								updateConversationUi();
1580							}
1581						} else {
1582							Log.d(Config.LOGTAG,"found matching message for file "+path+" but file still exists");
1583						}
1584					}
1585				}
1586			});
1587		}
1588	}
1589
1590	public void populateWithOrderedConversations(final List<Conversation> list) {
1591		populateWithOrderedConversations(list, true);
1592	}
1593
1594	public void populateWithOrderedConversations(final List<Conversation> list, boolean includeNoFileUpload) {
1595		list.clear();
1596		if (includeNoFileUpload) {
1597			list.addAll(getConversations());
1598		} else {
1599			for (Conversation conversation : getConversations()) {
1600				if (conversation.getMode() == Conversation.MODE_SINGLE
1601						|| conversation.getAccount().httpUploadAvailable()) {
1602					list.add(conversation);
1603				}
1604			}
1605		}
1606		try {
1607			Collections.sort(list);
1608		} catch (IllegalArgumentException e) {
1609			//ignore
1610		}
1611	}
1612
1613	public void loadMoreMessages(final Conversation conversation, final long timestamp, final OnMoreMessagesLoaded callback) {
1614		if (XmppConnectionService.this.getMessageArchiveService().queryInProgress(conversation, callback)) {
1615			return;
1616		} else if (timestamp == 0) {
1617			return;
1618		}
1619		Log.d(Config.LOGTAG, "load more messages for " + conversation.getName() + " prior to " + MessageGenerator.getTimestamp(timestamp));
1620		Runnable runnable = new Runnable() {
1621			@Override
1622			public void run() {
1623				final Account account = conversation.getAccount();
1624				List<Message> messages = databaseBackend.getMessages(conversation, 50, timestamp);
1625				if (messages.size() > 0) {
1626					conversation.addAll(0, messages);
1627					checkDeletedFiles(conversation);
1628					callback.onMoreMessagesLoaded(messages.size(), conversation);
1629				} else if (conversation.hasMessagesLeftOnServer()
1630						&& account.isOnlineAndConnected()
1631						&& conversation.getLastClearHistory() == 0) {
1632					if ((conversation.getMode() == Conversation.MODE_SINGLE && account.getXmppConnection().getFeatures().mam())
1633							|| (conversation.getMode() == Conversation.MODE_MULTI && conversation.getMucOptions().mamSupport())) {
1634						MessageArchiveService.Query query = getMessageArchiveService().query(conversation, 0, timestamp);
1635						if (query != null) {
1636							query.setCallback(callback);
1637							callback.informUser(R.string.fetching_history_from_server);
1638						} else {
1639							callback.informUser(R.string.not_fetching_history_retention_period);
1640						}
1641
1642					}
1643				}
1644			}
1645		};
1646		mDatabaseExecutor.execute(runnable);
1647	}
1648
1649	public List<Account> getAccounts() {
1650		return this.accounts;
1651	}
1652
1653	public List<Conversation> findAllConferencesWith(Contact contact) {
1654		ArrayList<Conversation> results = new ArrayList<>();
1655		for(Conversation conversation : conversations) {
1656			if (conversation.getMode() == Conversation.MODE_MULTI
1657					&& conversation.getMucOptions().isContactInRoom(contact)) {
1658				results.add(conversation);
1659			}
1660		}
1661		return results;
1662	}
1663
1664	public Conversation find(final Iterable<Conversation> haystack, final Contact contact) {
1665		for (final Conversation conversation : haystack) {
1666			if (conversation.getContact() == contact) {
1667				return conversation;
1668			}
1669		}
1670		return null;
1671	}
1672
1673	public Conversation find(final Iterable<Conversation> haystack, final Account account, final Jid jid) {
1674		if (jid == null) {
1675			return null;
1676		}
1677		for (final Conversation conversation : haystack) {
1678			if ((account == null || conversation.getAccount() == account)
1679					&& (conversation.getJid().toBareJid().equals(jid.toBareJid()))) {
1680				return conversation;
1681			}
1682		}
1683		return null;
1684	}
1685
1686	public Conversation findOrCreateConversation(final Account account, final Jid jid, final boolean muc) {
1687		return this.findOrCreateConversation(account, jid, muc, null);
1688	}
1689
1690	public Conversation findOrCreateConversation(final Account account, final Jid jid, final boolean muc, final MessageArchiveService.Query query) {
1691		synchronized (this.conversations) {
1692			Conversation conversation = find(account, jid);
1693			if (conversation != null) {
1694				return conversation;
1695			}
1696			conversation = databaseBackend.findConversation(account, jid);
1697			final boolean loadMessagesFromDb;
1698			if (conversation != null) {
1699				conversation.setStatus(Conversation.STATUS_AVAILABLE);
1700				conversation.setAccount(account);
1701				if (muc) {
1702					conversation.setMode(Conversation.MODE_MULTI);
1703					conversation.setContactJid(jid);
1704				} else {
1705					conversation.setMode(Conversation.MODE_SINGLE);
1706					conversation.setContactJid(jid.toBareJid());
1707				}
1708				databaseBackend.updateConversation(conversation);
1709				loadMessagesFromDb = conversation.messagesLoaded.compareAndSet(true,false);
1710			} else {
1711				String conversationName;
1712				Contact contact = account.getRoster().getContact(jid);
1713				if (contact != null) {
1714					conversationName = contact.getDisplayName();
1715				} else {
1716					conversationName = jid.getLocalpart();
1717				}
1718				if (muc) {
1719					conversation = new Conversation(conversationName, account, jid,
1720							Conversation.MODE_MULTI);
1721				} else {
1722					conversation = new Conversation(conversationName, account, jid.toBareJid(),
1723							Conversation.MODE_SINGLE);
1724				}
1725				this.databaseBackend.createConversation(conversation);
1726				loadMessagesFromDb = false;
1727			}
1728			final Conversation c = conversation;
1729			mDatabaseExecutor.execute(new Runnable() {
1730				@Override
1731				public void run() {
1732					if (loadMessagesFromDb) {
1733						c.addAll(0, databaseBackend.getMessages(c, Config.PAGE_SIZE));
1734						updateConversationUi();
1735						c.messagesLoaded.set(true);
1736					}
1737					if (account.getXmppConnection() != null
1738							&& account.getXmppConnection().getFeatures().mam()
1739							&& !muc) {
1740						if (query == null) {
1741							mMessageArchiveService.query(c);
1742						} else {
1743							if (query.getConversation() == null) {
1744								mMessageArchiveService.query(c, query.getStart());
1745							}
1746						}
1747					}
1748					checkDeletedFiles(c);
1749				}
1750			});
1751			this.conversations.add(conversation);
1752			updateConversationUi();
1753			return conversation;
1754		}
1755	}
1756
1757	public void archiveConversation(Conversation conversation) {
1758		getNotificationService().clear(conversation);
1759		conversation.setStatus(Conversation.STATUS_ARCHIVED);
1760		synchronized (this.conversations) {
1761			if (conversation.getMode() == Conversation.MODE_MULTI) {
1762				if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
1763					Bookmark bookmark = conversation.getBookmark();
1764					if (bookmark != null && bookmark.autojoin() && respectAutojoin()) {
1765						bookmark.setAutojoin(false);
1766						pushBookmarks(bookmark.getAccount());
1767					}
1768				}
1769				leaveMuc(conversation);
1770			} else {
1771				conversation.endOtrIfNeeded();
1772				if (conversation.getContact().getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
1773					Log.d(Config.LOGTAG, "Canceling presence request from " + conversation.getJid().toString());
1774					sendPresencePacket(
1775							conversation.getAccount(),
1776							mPresenceGenerator.stopPresenceUpdatesTo(conversation.getContact())
1777					);
1778				}
1779			}
1780			updateConversation(conversation);
1781			this.conversations.remove(conversation);
1782			updateConversationUi();
1783		}
1784	}
1785
1786	public void createAccount(final Account account) {
1787		account.initAccountServices(this);
1788		databaseBackend.createAccount(account);
1789		this.accounts.add(account);
1790		this.reconnectAccountInBackground(account);
1791		updateAccountUi();
1792	}
1793
1794	public void createAccountFromKey(final String alias, final OnAccountCreated callback) {
1795		new Thread(new Runnable() {
1796			@Override
1797			public void run() {
1798				try {
1799					X509Certificate[] chain = KeyChain.getCertificateChain(XmppConnectionService.this, alias);
1800					Pair<Jid, String> info = CryptoHelper.extractJidAndName(chain[0]);
1801					if (findAccountByJid(info.first) == null) {
1802						Account account = new Account(info.first, "");
1803						account.setPrivateKeyAlias(alias);
1804						account.setOption(Account.OPTION_DISABLED, true);
1805						account.setDisplayName(info.second);
1806						createAccount(account);
1807						callback.onAccountCreated(account);
1808						if (Config.X509_VERIFICATION) {
1809							try {
1810								getMemorizingTrustManager().getNonInteractive(account.getJid().getDomainpart()).checkClientTrusted(chain, "RSA");
1811							} catch (CertificateException e) {
1812								callback.informUser(R.string.certificate_chain_is_not_trusted);
1813							}
1814						}
1815					} else {
1816						callback.informUser(R.string.account_already_exists);
1817					}
1818				} catch (Exception e) {
1819					e.printStackTrace();
1820					callback.informUser(R.string.unable_to_parse_certificate);
1821				}
1822			}
1823		}).start();
1824
1825	}
1826
1827	public void updateKeyInAccount(final Account account, final String alias) {
1828		Log.d(Config.LOGTAG, "update key in account " + alias);
1829		try {
1830			X509Certificate[] chain = KeyChain.getCertificateChain(XmppConnectionService.this, alias);
1831			Pair<Jid, String> info = CryptoHelper.extractJidAndName(chain[0]);
1832			if (account.getJid().toBareJid().equals(info.first)) {
1833				account.setPrivateKeyAlias(alias);
1834				account.setDisplayName(info.second);
1835				databaseBackend.updateAccount(account);
1836				if (Config.X509_VERIFICATION) {
1837					try {
1838						getMemorizingTrustManager().getNonInteractive(account.getJid().getDomainpart()).checkClientTrusted(chain, "RSA");
1839					} catch (CertificateException e) {
1840						showErrorToastInUi(R.string.certificate_chain_is_not_trusted);
1841					}
1842					account.getAxolotlService().regenerateKeys(true);
1843				}
1844			} else {
1845				showErrorToastInUi(R.string.jid_does_not_match_certificate);
1846			}
1847		} catch (Exception e) {
1848			e.printStackTrace();
1849		}
1850	}
1851
1852	public boolean updateAccount(final Account account) {
1853		if (databaseBackend.updateAccount(account)) {
1854			account.setShowErrorNotification(true);
1855			this.statusListener.onStatusChanged(account);
1856			databaseBackend.updateAccount(account);
1857			reconnectAccountInBackground(account);
1858			updateAccountUi();
1859			getNotificationService().updateErrorNotification();
1860			return true;
1861		} else {
1862			return false;
1863		}
1864	}
1865
1866	public void updateAccountPasswordOnServer(final Account account, final String newPassword, final OnAccountPasswordChanged callback) {
1867		final IqPacket iq = getIqGenerator().generateSetPassword(account, newPassword);
1868		sendIqPacket(account, iq, new OnIqPacketReceived() {
1869			@Override
1870			public void onIqPacketReceived(final Account account, final IqPacket packet) {
1871				if (packet.getType() == IqPacket.TYPE.RESULT) {
1872					account.setPassword(newPassword);
1873					account.setOption(Account.OPTION_MAGIC_CREATE, false);
1874					databaseBackend.updateAccount(account);
1875					callback.onPasswordChangeSucceeded();
1876				} else {
1877					callback.onPasswordChangeFailed();
1878				}
1879			}
1880		});
1881	}
1882
1883	public void deleteAccount(final Account account) {
1884		synchronized (this.conversations) {
1885			for (final Conversation conversation : conversations) {
1886				if (conversation.getAccount() == account) {
1887					if (conversation.getMode() == Conversation.MODE_MULTI) {
1888						leaveMuc(conversation);
1889					} else if (conversation.getMode() == Conversation.MODE_SINGLE) {
1890						conversation.endOtrIfNeeded();
1891					}
1892					conversations.remove(conversation);
1893				}
1894			}
1895			if (account.getXmppConnection() != null) {
1896				new Thread(new Runnable() {
1897					@Override
1898					public void run() {
1899						disconnect(account, true);
1900					}
1901				}).start();
1902			}
1903			Runnable runnable = new Runnable() {
1904				@Override
1905				public void run() {
1906					if (!databaseBackend.deleteAccount(account)) {
1907						Log.d(Config.LOGTAG,account.getJid().toBareJid()+": unable to delete account");
1908					}
1909				}
1910			};
1911			mDatabaseExecutor.execute(runnable);
1912			this.accounts.remove(account);
1913			updateAccountUi();
1914			getNotificationService().updateErrorNotification();
1915		}
1916	}
1917
1918	public void setOnConversationListChangedListener(OnConversationUpdate listener) {
1919		synchronized (this) {
1920			this.mLastActivity = System.currentTimeMillis();
1921			if (checkListeners()) {
1922				switchToForeground();
1923			}
1924			this.mOnConversationUpdate = listener;
1925			this.mNotificationService.setIsInForeground(true);
1926			if (this.convChangedListenerCount < 2) {
1927				this.convChangedListenerCount++;
1928			}
1929		}
1930	}
1931
1932	public void removeOnConversationListChangedListener() {
1933		synchronized (this) {
1934			this.convChangedListenerCount--;
1935			if (this.convChangedListenerCount <= 0) {
1936				this.convChangedListenerCount = 0;
1937				this.mOnConversationUpdate = null;
1938				this.mNotificationService.setIsInForeground(false);
1939				if (checkListeners()) {
1940					switchToBackground();
1941				}
1942			}
1943		}
1944	}
1945
1946	public void setOnShowErrorToastListener(OnShowErrorToast onShowErrorToast) {
1947		synchronized (this) {
1948			if (checkListeners()) {
1949				switchToForeground();
1950			}
1951			this.mOnShowErrorToast = onShowErrorToast;
1952			if (this.showErrorToastListenerCount < 2) {
1953				this.showErrorToastListenerCount++;
1954			}
1955		}
1956		this.mOnShowErrorToast = onShowErrorToast;
1957	}
1958
1959	public void removeOnShowErrorToastListener() {
1960		synchronized (this) {
1961			this.showErrorToastListenerCount--;
1962			if (this.showErrorToastListenerCount <= 0) {
1963				this.showErrorToastListenerCount = 0;
1964				this.mOnShowErrorToast = null;
1965				if (checkListeners()) {
1966					switchToBackground();
1967				}
1968			}
1969		}
1970	}
1971
1972	public void setOnAccountListChangedListener(OnAccountUpdate listener) {
1973		synchronized (this) {
1974			if (checkListeners()) {
1975				switchToForeground();
1976			}
1977			this.mOnAccountUpdate = listener;
1978			if (this.accountChangedListenerCount < 2) {
1979				this.accountChangedListenerCount++;
1980			}
1981		}
1982	}
1983
1984	public void removeOnAccountListChangedListener() {
1985		synchronized (this) {
1986			this.accountChangedListenerCount--;
1987			if (this.accountChangedListenerCount <= 0) {
1988				this.mOnAccountUpdate = null;
1989				this.accountChangedListenerCount = 0;
1990				if (checkListeners()) {
1991					switchToBackground();
1992				}
1993			}
1994		}
1995	}
1996
1997	public void setOnCaptchaRequestedListener(OnCaptchaRequested listener) {
1998		synchronized (this) {
1999			if (checkListeners()) {
2000				switchToForeground();
2001			}
2002			this.mOnCaptchaRequested = listener;
2003			if (this.captchaRequestedListenerCount < 2) {
2004				this.captchaRequestedListenerCount++;
2005			}
2006		}
2007	}
2008
2009	public void removeOnCaptchaRequestedListener() {
2010		synchronized (this) {
2011			this.captchaRequestedListenerCount--;
2012			if (this.captchaRequestedListenerCount <= 0) {
2013				this.mOnCaptchaRequested = null;
2014				this.captchaRequestedListenerCount = 0;
2015				if (checkListeners()) {
2016					switchToBackground();
2017				}
2018			}
2019		}
2020	}
2021
2022	public void setOnRosterUpdateListener(final OnRosterUpdate listener) {
2023		synchronized (this) {
2024			if (checkListeners()) {
2025				switchToForeground();
2026			}
2027			this.mOnRosterUpdate = listener;
2028			if (this.rosterChangedListenerCount < 2) {
2029				this.rosterChangedListenerCount++;
2030			}
2031		}
2032	}
2033
2034	public void removeOnRosterUpdateListener() {
2035		synchronized (this) {
2036			this.rosterChangedListenerCount--;
2037			if (this.rosterChangedListenerCount <= 0) {
2038				this.rosterChangedListenerCount = 0;
2039				this.mOnRosterUpdate = null;
2040				if (checkListeners()) {
2041					switchToBackground();
2042				}
2043			}
2044		}
2045	}
2046
2047	public void setOnUpdateBlocklistListener(final OnUpdateBlocklist listener) {
2048		synchronized (this) {
2049			if (checkListeners()) {
2050				switchToForeground();
2051			}
2052			this.mOnUpdateBlocklist = listener;
2053			if (this.updateBlocklistListenerCount < 2) {
2054				this.updateBlocklistListenerCount++;
2055			}
2056		}
2057	}
2058
2059	public void removeOnUpdateBlocklistListener() {
2060		synchronized (this) {
2061			this.updateBlocklistListenerCount--;
2062			if (this.updateBlocklistListenerCount <= 0) {
2063				this.updateBlocklistListenerCount = 0;
2064				this.mOnUpdateBlocklist = null;
2065				if (checkListeners()) {
2066					switchToBackground();
2067				}
2068			}
2069		}
2070	}
2071
2072	public void setOnKeyStatusUpdatedListener(final OnKeyStatusUpdated listener) {
2073		synchronized (this) {
2074			if (checkListeners()) {
2075				switchToForeground();
2076			}
2077			this.mOnKeyStatusUpdated = listener;
2078			if (this.keyStatusUpdatedListenerCount < 2) {
2079				this.keyStatusUpdatedListenerCount++;
2080			}
2081		}
2082	}
2083
2084	public void removeOnNewKeysAvailableListener() {
2085		synchronized (this) {
2086			this.keyStatusUpdatedListenerCount--;
2087			if (this.keyStatusUpdatedListenerCount <= 0) {
2088				this.keyStatusUpdatedListenerCount = 0;
2089				this.mOnKeyStatusUpdated = null;
2090				if (checkListeners()) {
2091					switchToBackground();
2092				}
2093			}
2094		}
2095	}
2096
2097	public void setOnMucRosterUpdateListener(OnMucRosterUpdate listener) {
2098		synchronized (this) {
2099			if (checkListeners()) {
2100				switchToForeground();
2101			}
2102			this.mOnMucRosterUpdate = listener;
2103			if (this.mucRosterChangedListenerCount < 2) {
2104				this.mucRosterChangedListenerCount++;
2105			}
2106		}
2107	}
2108
2109	public void removeOnMucRosterUpdateListener() {
2110		synchronized (this) {
2111			this.mucRosterChangedListenerCount--;
2112			if (this.mucRosterChangedListenerCount <= 0) {
2113				this.mucRosterChangedListenerCount = 0;
2114				this.mOnMucRosterUpdate = null;
2115				if (checkListeners()) {
2116					switchToBackground();
2117				}
2118			}
2119		}
2120	}
2121
2122	public boolean checkListeners() {
2123		return (this.mOnAccountUpdate == null
2124				&& this.mOnConversationUpdate == null
2125				&& this.mOnRosterUpdate == null
2126				&& this.mOnCaptchaRequested == null
2127				&& this.mOnUpdateBlocklist == null
2128				&& this.mOnShowErrorToast == null
2129				&& this.mOnKeyStatusUpdated == null);
2130	}
2131
2132	private void switchToForeground() {
2133		final boolean broadcastLastActivity = broadcastLastActivity();
2134		for (Conversation conversation : getConversations()) {
2135			conversation.setIncomingChatState(ChatState.ACTIVE);
2136		}
2137		for (Account account : getAccounts()) {
2138			if (account.getStatus() == Account.State.ONLINE) {
2139				account.deactivateGracePeriod();
2140				final XmppConnection connection = account.getXmppConnection();
2141				if (connection != null ) {
2142					if (connection.getFeatures().csi()) {
2143						connection.sendActive();
2144					}
2145					if (broadcastLastActivity) {
2146						sendPresence(account, false); //send new presence but don't include idle because we are not
2147					}
2148				}
2149			}
2150		}
2151		Log.d(Config.LOGTAG, "app switched into foreground");
2152	}
2153
2154	private void switchToBackground() {
2155		final boolean broadcastLastActivity = broadcastLastActivity();
2156		for (Account account : getAccounts()) {
2157			if (account.getStatus() == Account.State.ONLINE) {
2158				XmppConnection connection = account.getXmppConnection();
2159				if (connection != null) {
2160					if (broadcastLastActivity) {
2161						sendPresence(account, broadcastLastActivity);
2162					}
2163					if (connection.getFeatures().csi()) {
2164						connection.sendInactive();
2165					}
2166				}
2167			}
2168		}
2169		this.mNotificationService.setIsInForeground(false);
2170		Log.d(Config.LOGTAG, "app switched into background");
2171	}
2172
2173	private void connectMultiModeConversations(Account account) {
2174		List<Conversation> conversations = getConversations();
2175		for (Conversation conversation : conversations) {
2176			if (conversation.getMode() == Conversation.MODE_MULTI && conversation.getAccount() == account) {
2177				joinMuc(conversation);
2178			}
2179		}
2180	}
2181
2182	public void joinMuc(Conversation conversation) {
2183		joinMuc(conversation,null, false);
2184	}
2185
2186	public void joinMuc(Conversation conversation, boolean followedInvite) {
2187		joinMuc(conversation, null, followedInvite);
2188	}
2189
2190	private void joinMuc(Conversation conversation, final OnConferenceJoined onConferenceJoined) {
2191		joinMuc(conversation,onConferenceJoined,false);
2192	}
2193
2194	private void joinMuc(Conversation conversation, final OnConferenceJoined onConferenceJoined, final boolean followedInvite) {
2195		Account account = conversation.getAccount();
2196		account.pendingConferenceJoins.remove(conversation);
2197		account.pendingConferenceLeaves.remove(conversation);
2198		if (account.getStatus() == Account.State.ONLINE) {
2199			conversation.resetMucOptions();
2200			if (onConferenceJoined != null) {
2201				conversation.getMucOptions().flagNoAutoPushConfiguration();
2202			}
2203			conversation.setHasMessagesLeftOnServer(false);
2204			fetchConferenceConfiguration(conversation, new OnConferenceConfigurationFetched() {
2205
2206				private void join(Conversation conversation) {
2207					Account account = conversation.getAccount();
2208					final MucOptions mucOptions = conversation.getMucOptions();
2209					final Jid joinJid = mucOptions.getSelf().getFullJid();
2210					Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": joining conversation " + joinJid.toString());
2211					PresencePacket packet = mPresenceGenerator.selfPresence(account, Presence.Status.ONLINE, mucOptions.nonanonymous());
2212					packet.setTo(joinJid);
2213					Element x = packet.addChild("x", "http://jabber.org/protocol/muc");
2214					if (conversation.getMucOptions().getPassword() != null) {
2215						x.addChild("password").setContent(mucOptions.getPassword());
2216					}
2217
2218					if (mucOptions.mamSupport()) {
2219						// Use MAM instead of the limited muc history to get history
2220						x.addChild("history").setAttribute("maxchars", "0");
2221					} else {
2222						// Fallback to muc history
2223						x.addChild("history").setAttribute("since", PresenceGenerator.getTimestamp(conversation.getLastMessageTransmitted()));
2224					}
2225					sendPresencePacket(account, packet);
2226					if (onConferenceJoined != null) {
2227						onConferenceJoined.onConferenceJoined(conversation);
2228					}
2229					if (!joinJid.equals(conversation.getJid())) {
2230						conversation.setContactJid(joinJid);
2231						databaseBackend.updateConversation(conversation);
2232					}
2233
2234					if (mucOptions.mamSupport()) {
2235						getMessageArchiveService().catchupMUC(conversation);
2236					}
2237					if (mucOptions.membersOnly() && mucOptions.nonanonymous()) {
2238						fetchConferenceMembers(conversation);
2239						if (followedInvite && conversation.getBookmark() == null) {
2240							saveConversationAsBookmark(conversation,null);
2241						}
2242					}
2243					sendUnsentMessages(conversation);
2244				}
2245
2246				@Override
2247				public void onConferenceConfigurationFetched(Conversation conversation) {
2248					join(conversation);
2249				}
2250
2251				@Override
2252				public void onFetchFailed(final Conversation conversation, Element error) {
2253					if (error != null && "remote-server-not-found".equals(error.getName())) {
2254						conversation.getMucOptions().setError(MucOptions.Error.SERVER_NOT_FOUND);
2255					} else {
2256						join(conversation);
2257						fetchConferenceConfiguration(conversation);
2258					}
2259				}
2260			});
2261			updateConversationUi();
2262		} else {
2263			account.pendingConferenceJoins.add(conversation);
2264			conversation.resetMucOptions();
2265			conversation.setHasMessagesLeftOnServer(false);
2266			updateConversationUi();
2267		}
2268	}
2269
2270	private void fetchConferenceMembers(final Conversation conversation) {
2271		final Account account = conversation.getAccount();
2272		final String[] affiliations = {"member","admin","owner"};
2273		OnIqPacketReceived callback = new OnIqPacketReceived() {
2274
2275			private int i = 0;
2276			private boolean success = true;
2277
2278			@Override
2279			public void onIqPacketReceived(Account account, IqPacket packet) {
2280
2281				Element query = packet.query("http://jabber.org/protocol/muc#admin");
2282				if (packet.getType() == IqPacket.TYPE.RESULT && query != null) {
2283					for(Element child : query.getChildren()) {
2284						if ("item".equals(child.getName())) {
2285							MucOptions.User user = AbstractParser.parseItem(conversation,child);
2286							if (!user.realJidMatchesAccount()) {
2287								conversation.getMucOptions().updateUser(user);
2288							}
2289						}
2290					}
2291				} else {
2292					success = false;
2293					Log.d(Config.LOGTAG,account.getJid().toBareJid()+": could not request affiliation "+affiliations[i]+" in "+conversation.getJid().toBareJid());
2294				}
2295				++i;
2296				if (i >= affiliations.length) {
2297					List<Jid> members = conversation.getMucOptions().getMembers();
2298					if (success) {
2299						List<Jid> cryptoTargets = conversation.getAcceptedCryptoTargets();
2300						boolean changed = false;
2301						for(ListIterator<Jid> iterator = cryptoTargets.listIterator(); iterator.hasNext();) {
2302							Jid jid = iterator.next();
2303							if (!members.contains(jid)) {
2304								iterator.remove();
2305								Log.d(Config.LOGTAG,account.getJid().toBareJid()+": removed "+jid+" from crypto targets of "+conversation.getName());
2306								changed = true;
2307							}
2308						}
2309						if (changed) {
2310							conversation.setAcceptedCryptoTargets(cryptoTargets);
2311							updateConversation(conversation);
2312						}
2313					}
2314					Log.d(Config.LOGTAG,account.getJid().toBareJid()+": retrieved members for "+conversation.getJid().toBareJid()+": "+conversation.getMucOptions().getMembers());
2315					getAvatarService().clear(conversation);
2316					updateMucRosterUi();
2317					updateConversationUi();
2318				}
2319			}
2320		};
2321		for(String affiliation : affiliations) {
2322			sendIqPacket(account, mIqGenerator.queryAffiliation(conversation, affiliation), callback);
2323		}
2324		Log.d(Config.LOGTAG,account.getJid().toBareJid()+": fetching members for "+conversation.getName());
2325	}
2326
2327	public void providePasswordForMuc(Conversation conversation, String password) {
2328		if (conversation.getMode() == Conversation.MODE_MULTI) {
2329			conversation.getMucOptions().setPassword(password);
2330			if (conversation.getBookmark() != null) {
2331				if (respectAutojoin()) {
2332					conversation.getBookmark().setAutojoin(true);
2333				}
2334				pushBookmarks(conversation.getAccount());
2335			}
2336			updateConversation(conversation);
2337			joinMuc(conversation);
2338		}
2339	}
2340
2341	public void renameInMuc(final Conversation conversation, final String nick, final UiCallback<Conversation> callback) {
2342		final MucOptions options = conversation.getMucOptions();
2343		final Jid joinJid = options.createJoinJid(nick);
2344		if (options.online()) {
2345			Account account = conversation.getAccount();
2346			options.setOnRenameListener(new OnRenameListener() {
2347
2348				@Override
2349				public void onSuccess() {
2350					conversation.setContactJid(joinJid);
2351					databaseBackend.updateConversation(conversation);
2352					Bookmark bookmark = conversation.getBookmark();
2353					if (bookmark != null) {
2354						bookmark.setNick(nick);
2355						pushBookmarks(bookmark.getAccount());
2356					}
2357					callback.success(conversation);
2358				}
2359
2360				@Override
2361				public void onFailure() {
2362					callback.error(R.string.nick_in_use, conversation);
2363				}
2364			});
2365
2366			PresencePacket packet = new PresencePacket();
2367			packet.setTo(joinJid);
2368			packet.setFrom(conversation.getAccount().getJid());
2369
2370			String sig = account.getPgpSignature();
2371			if (sig != null) {
2372				packet.addChild("status").setContent("online");
2373				packet.addChild("x", "jabber:x:signed").setContent(sig);
2374			}
2375			sendPresencePacket(account, packet);
2376		} else {
2377			conversation.setContactJid(joinJid);
2378			databaseBackend.updateConversation(conversation);
2379			if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
2380				Bookmark bookmark = conversation.getBookmark();
2381				if (bookmark != null) {
2382					bookmark.setNick(nick);
2383					pushBookmarks(bookmark.getAccount());
2384				}
2385				joinMuc(conversation);
2386			}
2387		}
2388	}
2389
2390	public void leaveMuc(Conversation conversation) {
2391		leaveMuc(conversation, false);
2392	}
2393
2394	private void leaveMuc(Conversation conversation, boolean now) {
2395		Account account = conversation.getAccount();
2396		account.pendingConferenceJoins.remove(conversation);
2397		account.pendingConferenceLeaves.remove(conversation);
2398		if (account.getStatus() == Account.State.ONLINE || now) {
2399			PresencePacket packet = new PresencePacket();
2400			packet.setTo(conversation.getMucOptions().getSelf().getFullJid());
2401			packet.setFrom(conversation.getAccount().getJid());
2402			packet.setAttribute("type", "unavailable");
2403			sendPresencePacket(conversation.getAccount(), packet);
2404			conversation.getMucOptions().setOffline();
2405			conversation.deregisterWithBookmark();
2406			Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid()
2407					+ ": leaving muc " + conversation.getJid());
2408		} else {
2409			account.pendingConferenceLeaves.add(conversation);
2410		}
2411	}
2412
2413	private String findConferenceServer(final Account account) {
2414		String server;
2415		if (account.getXmppConnection() != null) {
2416			server = account.getXmppConnection().getMucServer();
2417			if (server != null) {
2418				return server;
2419			}
2420		}
2421		for (Account other : getAccounts()) {
2422			if (other != account && other.getXmppConnection() != null) {
2423				server = other.getXmppConnection().getMucServer();
2424				if (server != null) {
2425					return server;
2426				}
2427			}
2428		}
2429		return null;
2430	}
2431
2432	public void createAdhocConference(final Account account,
2433									  final String subject,
2434									  final Iterable<Jid> jids,
2435									  final UiCallback<Conversation> callback) {
2436		Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": creating adhoc conference with " + jids.toString());
2437		if (account.getStatus() == Account.State.ONLINE) {
2438			try {
2439				String server = findConferenceServer(account);
2440				if (server == null) {
2441					if (callback != null) {
2442						callback.error(R.string.no_conference_server_found, null);
2443					}
2444					return;
2445				}
2446				final Jid jid = Jid.fromParts(new BigInteger(64, getRNG()).toString(Character.MAX_RADIX), server, null);
2447				final Conversation conversation = findOrCreateConversation(account, jid, true);
2448				joinMuc(conversation, new OnConferenceJoined() {
2449					@Override
2450					public void onConferenceJoined(final Conversation conversation) {
2451						pushConferenceConfiguration(conversation, IqGenerator.defaultRoomConfiguration(), new OnConferenceOptionsPushed() {
2452							@Override
2453							public void onPushSucceeded() {
2454								if (subject != null && !subject.trim().isEmpty()) {
2455									pushSubjectToConference(conversation, subject.trim());
2456								}
2457								for (Jid invite : jids) {
2458									invite(conversation, invite);
2459								}
2460								if (account.countPresences() > 1) {
2461									directInvite(conversation, account.getJid().toBareJid());
2462								}
2463								saveConversationAsBookmark(conversation, subject);
2464								if (callback != null) {
2465									callback.success(conversation);
2466								}
2467							}
2468
2469							@Override
2470							public void onPushFailed() {
2471								archiveConversation(conversation);
2472								if (callback != null) {
2473									callback.error(R.string.conference_creation_failed, conversation);
2474								}
2475							}
2476						});
2477					}
2478				});
2479			} catch (InvalidJidException e) {
2480				if (callback != null) {
2481					callback.error(R.string.conference_creation_failed, null);
2482				}
2483			}
2484		} else {
2485			if (callback != null) {
2486				callback.error(R.string.not_connected_try_again, null);
2487			}
2488		}
2489	}
2490
2491	public void fetchConferenceConfiguration(final Conversation conversation) {
2492		fetchConferenceConfiguration(conversation, null);
2493	}
2494
2495	public void fetchConferenceConfiguration(final Conversation conversation, final OnConferenceConfigurationFetched callback) {
2496		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
2497		request.setTo(conversation.getJid().toBareJid());
2498		request.query("http://jabber.org/protocol/disco#info");
2499		sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
2500			@Override
2501			public void onIqPacketReceived(Account account, IqPacket packet) {
2502				Element query = packet.findChild("query","http://jabber.org/protocol/disco#info");
2503				if (packet.getType() == IqPacket.TYPE.RESULT && query != null) {
2504					ArrayList<String> features = new ArrayList<>();
2505					for (Element child : query.getChildren()) {
2506						if (child != null && child.getName().equals("feature")) {
2507							String var = child.getAttribute("var");
2508							if (var != null) {
2509								features.add(var);
2510							}
2511						}
2512					}
2513					Element form = query.findChild("x", "jabber:x:data");
2514					if (form != null) {
2515						conversation.getMucOptions().updateFormData(Data.parse(form));
2516					}
2517					conversation.getMucOptions().updateFeatures(features);
2518					if (callback != null) {
2519						callback.onConferenceConfigurationFetched(conversation);
2520					}
2521					Log.d(Config.LOGTAG,account.getJid().toBareJid()+": fetched muc configuration for "+conversation.getJid().toBareJid()+" - "+features.toString());
2522					updateConversationUi();
2523				} else if (packet.getType() == IqPacket.TYPE.ERROR) {
2524					if (callback != null) {
2525						callback.onFetchFailed(conversation, packet.getError());
2526					}
2527				}
2528			}
2529		});
2530	}
2531
2532	public void pushConferenceConfiguration(final Conversation conversation, final Bundle options, final OnConferenceOptionsPushed callback) {
2533		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
2534		request.setTo(conversation.getJid().toBareJid());
2535		request.query("http://jabber.org/protocol/muc#owner");
2536		sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
2537			@Override
2538			public void onIqPacketReceived(Account account, IqPacket packet) {
2539				if (packet.getType() == IqPacket.TYPE.RESULT) {
2540					Data data = Data.parse(packet.query().findChild("x", "jabber:x:data"));
2541					for (Field field : data.getFields()) {
2542						if (options.containsKey(field.getFieldName())) {
2543							field.setValue(options.getString(field.getFieldName()));
2544						}
2545					}
2546					data.submit();
2547					IqPacket set = new IqPacket(IqPacket.TYPE.SET);
2548					set.setTo(conversation.getJid().toBareJid());
2549					set.query("http://jabber.org/protocol/muc#owner").addChild(data);
2550					sendIqPacket(account, set, new OnIqPacketReceived() {
2551						@Override
2552						public void onIqPacketReceived(Account account, IqPacket packet) {
2553							if (callback != null) {
2554								if (packet.getType() == IqPacket.TYPE.RESULT) {
2555									callback.onPushSucceeded();
2556								} else {
2557									callback.onPushFailed();
2558								}
2559							}
2560						}
2561					});
2562				} else {
2563					if (callback != null) {
2564						callback.onPushFailed();
2565					}
2566				}
2567			}
2568		});
2569	}
2570
2571	public void pushSubjectToConference(final Conversation conference, final String subject) {
2572		MessagePacket packet = this.getMessageGenerator().conferenceSubject(conference, subject);
2573		this.sendMessagePacket(conference.getAccount(), packet);
2574		final MucOptions mucOptions = conference.getMucOptions();
2575		final MucOptions.User self = mucOptions.getSelf();
2576		if (!mucOptions.persistent() && self.getAffiliation().ranks(MucOptions.Affiliation.OWNER)) {
2577			Bundle options = new Bundle();
2578			options.putString("muc#roomconfig_persistentroom", "1");
2579			this.pushConferenceConfiguration(conference, options, null);
2580		}
2581	}
2582
2583	public void changeAffiliationInConference(final Conversation conference, Jid user, final MucOptions.Affiliation affiliation, final OnAffiliationChanged callback) {
2584		final Jid jid = user.toBareJid();
2585		IqPacket request = this.mIqGenerator.changeAffiliation(conference, jid, affiliation.toString());
2586		sendIqPacket(conference.getAccount(), request, new OnIqPacketReceived() {
2587			@Override
2588			public void onIqPacketReceived(Account account, IqPacket packet) {
2589				if (packet.getType() == IqPacket.TYPE.RESULT) {
2590					conference.getMucOptions().changeAffiliation(jid, affiliation);
2591					getAvatarService().clear(conference);
2592					callback.onAffiliationChangedSuccessful(jid);
2593				} else {
2594					callback.onAffiliationChangeFailed(jid, R.string.could_not_change_affiliation);
2595				}
2596			}
2597		});
2598	}
2599
2600	public void changeAffiliationsInConference(final Conversation conference, MucOptions.Affiliation before, MucOptions.Affiliation after) {
2601		List<Jid> jids = new ArrayList<>();
2602		for (MucOptions.User user : conference.getMucOptions().getUsers()) {
2603			if (user.getAffiliation() == before && user.getRealJid() != null) {
2604				jids.add(user.getRealJid());
2605			}
2606		}
2607		IqPacket request = this.mIqGenerator.changeAffiliation(conference, jids, after.toString());
2608		sendIqPacket(conference.getAccount(), request, mDefaultIqHandler);
2609	}
2610
2611	public void changeRoleInConference(final Conversation conference, final String nick, MucOptions.Role role, final OnRoleChanged callback) {
2612		IqPacket request = this.mIqGenerator.changeRole(conference, nick, role.toString());
2613		Log.d(Config.LOGTAG, request.toString());
2614		sendIqPacket(conference.getAccount(), request, new OnIqPacketReceived() {
2615			@Override
2616			public void onIqPacketReceived(Account account, IqPacket packet) {
2617				Log.d(Config.LOGTAG, packet.toString());
2618				if (packet.getType() == IqPacket.TYPE.RESULT) {
2619					callback.onRoleChangedSuccessful(nick);
2620				} else {
2621					callback.onRoleChangeFailed(nick, R.string.could_not_change_role);
2622				}
2623			}
2624		});
2625	}
2626
2627	private void disconnect(Account account, boolean force) {
2628		if ((account.getStatus() == Account.State.ONLINE)
2629				|| (account.getStatus() == Account.State.DISABLED)) {
2630			final XmppConnection connection = account.getXmppConnection();
2631			if (!force) {
2632				List<Conversation> conversations = getConversations();
2633				for (Conversation conversation : conversations) {
2634					if (conversation.getAccount() == account) {
2635						if (conversation.getMode() == Conversation.MODE_MULTI) {
2636							leaveMuc(conversation, true);
2637						} else {
2638							if (conversation.endOtrIfNeeded()) {
2639								Log.d(Config.LOGTAG, account.getJid().toBareJid()
2640										+ ": ended otr session with "
2641										+ conversation.getJid());
2642							}
2643						}
2644					}
2645				}
2646				sendOfflinePresence(account);
2647			}
2648			connection.disconnect(force);
2649		}
2650	}
2651
2652	@Override
2653	public IBinder onBind(Intent intent) {
2654		return mBinder;
2655	}
2656
2657	public void updateMessage(Message message) {
2658		databaseBackend.updateMessage(message);
2659		updateConversationUi();
2660	}
2661
2662	public void updateMessage(Message message, String uuid) {
2663		databaseBackend.updateMessage(message, uuid);
2664		updateConversationUi();
2665	}
2666
2667	protected void syncDirtyContacts(Account account) {
2668		for (Contact contact : account.getRoster().getContacts()) {
2669			if (contact.getOption(Contact.Options.DIRTY_PUSH)) {
2670				pushContactToServer(contact);
2671			}
2672			if (contact.getOption(Contact.Options.DIRTY_DELETE)) {
2673				deleteContactOnServer(contact);
2674			}
2675		}
2676	}
2677
2678	public void createContact(Contact contact) {
2679		boolean autoGrant = getPreferences().getBoolean("grant_new_contacts", true);
2680		if (autoGrant) {
2681			contact.setOption(Contact.Options.PREEMPTIVE_GRANT);
2682			contact.setOption(Contact.Options.ASKING);
2683		}
2684		pushContactToServer(contact);
2685	}
2686
2687	public void onOtrSessionEstablished(Conversation conversation) {
2688		final Account account = conversation.getAccount();
2689		final Session otrSession = conversation.getOtrSession();
2690		Log.d(Config.LOGTAG,
2691				account.getJid().toBareJid() + " otr session established with "
2692						+ conversation.getJid() + "/"
2693						+ otrSession.getSessionID().getUserID());
2694		conversation.findUnsentMessagesWithEncryption(Message.ENCRYPTION_OTR, new Conversation.OnMessageFound() {
2695
2696			@Override
2697			public void onMessageFound(Message message) {
2698				SessionID id = otrSession.getSessionID();
2699				try {
2700					message.setCounterpart(Jid.fromString(id.getAccountID() + "/" + id.getUserID()));
2701				} catch (InvalidJidException e) {
2702					return;
2703				}
2704				if (message.needsUploading()) {
2705					mJingleConnectionManager.createNewConnection(message);
2706				} else {
2707					MessagePacket outPacket = mMessageGenerator.generateOtrChat(message);
2708					if (outPacket != null) {
2709						mMessageGenerator.addDelay(outPacket, message.getTimeSent());
2710						message.setStatus(Message.STATUS_SEND);
2711						databaseBackend.updateMessage(message);
2712						sendMessagePacket(account, outPacket);
2713					}
2714				}
2715				updateConversationUi();
2716			}
2717		});
2718	}
2719
2720	public boolean renewSymmetricKey(Conversation conversation) {
2721		Account account = conversation.getAccount();
2722		byte[] symmetricKey = new byte[32];
2723		this.mRandom.nextBytes(symmetricKey);
2724		Session otrSession = conversation.getOtrSession();
2725		if (otrSession != null) {
2726			MessagePacket packet = new MessagePacket();
2727			packet.setType(MessagePacket.TYPE_CHAT);
2728			packet.setFrom(account.getJid());
2729			MessageGenerator.addMessageHints(packet);
2730			packet.setAttribute("to", otrSession.getSessionID().getAccountID() + "/"
2731					+ otrSession.getSessionID().getUserID());
2732			try {
2733				packet.setBody(otrSession
2734						.transformSending(CryptoHelper.FILETRANSFER
2735								+ CryptoHelper.bytesToHex(symmetricKey))[0]);
2736				sendMessagePacket(account, packet);
2737				conversation.setSymmetricKey(symmetricKey);
2738				return true;
2739			} catch (OtrException e) {
2740				return false;
2741			}
2742		}
2743		return false;
2744	}
2745
2746	public void pushContactToServer(final Contact contact) {
2747		contact.resetOption(Contact.Options.DIRTY_DELETE);
2748		contact.setOption(Contact.Options.DIRTY_PUSH);
2749		final Account account = contact.getAccount();
2750		if (account.getStatus() == Account.State.ONLINE) {
2751			final boolean ask = contact.getOption(Contact.Options.ASKING);
2752			final boolean sendUpdates = contact
2753					.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)
2754					&& contact.getOption(Contact.Options.PREEMPTIVE_GRANT);
2755			final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
2756			iq.query(Xmlns.ROSTER).addChild(contact.asElement());
2757			account.getXmppConnection().sendIqPacket(iq, mDefaultIqHandler);
2758			if (sendUpdates) {
2759				sendPresencePacket(account,
2760						mPresenceGenerator.sendPresenceUpdatesTo(contact));
2761			}
2762			if (ask) {
2763				sendPresencePacket(account,
2764						mPresenceGenerator.requestPresenceUpdatesFrom(contact));
2765			}
2766		}
2767	}
2768
2769	public void publishAvatar(Account account, Uri image, UiCallback<Avatar> callback) {
2770		final Bitmap.CompressFormat format = Config.AVATAR_FORMAT;
2771		final int size = Config.AVATAR_SIZE;
2772		final Avatar avatar = getFileBackend().getPepAvatar(image, size, format);
2773		if (avatar != null) {
2774			avatar.height = size;
2775			avatar.width = size;
2776			if (format.equals(Bitmap.CompressFormat.WEBP)) {
2777				avatar.type = "image/webp";
2778			} else if (format.equals(Bitmap.CompressFormat.JPEG)) {
2779				avatar.type = "image/jpeg";
2780			} else if (format.equals(Bitmap.CompressFormat.PNG)) {
2781				avatar.type = "image/png";
2782			}
2783			if (!getFileBackend().save(avatar)) {
2784				callback.error(R.string.error_saving_avatar, avatar);
2785				return;
2786			}
2787			publishAvatar(account, avatar, callback);
2788		} else {
2789			callback.error(R.string.error_publish_avatar_converting, null);
2790		}
2791	}
2792
2793	public void publishAvatar(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2794		IqPacket packet = this.mIqGenerator.publishAvatar(avatar);
2795		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2796
2797			@Override
2798			public void onIqPacketReceived(Account account, IqPacket result) {
2799				if (result.getType() == IqPacket.TYPE.RESULT) {
2800					final IqPacket packet = XmppConnectionService.this.mIqGenerator.publishAvatarMetadata(avatar);
2801					sendIqPacket(account, packet, new OnIqPacketReceived() {
2802						@Override
2803						public void onIqPacketReceived(Account account, IqPacket result) {
2804							if (result.getType() == IqPacket.TYPE.RESULT) {
2805								if (account.setAvatar(avatar.getFilename())) {
2806									getAvatarService().clear(account);
2807									databaseBackend.updateAccount(account);
2808								}
2809								Log.d(Config.LOGTAG,account.getJid().toBareJid()+": published avatar "+(avatar.size/1024)+"KiB");
2810								if (callback != null) {
2811									callback.success(avatar);
2812								}
2813							} else {
2814								if (callback != null) {
2815									callback.error(R.string.error_publish_avatar_server_reject,avatar);
2816								}
2817							}
2818						}
2819					});
2820				} else {
2821					Element error = result.findChild("error");
2822					Log.d(Config.LOGTAG,account.getJid().toBareJid()+": server rejected avatar "+(avatar.size/1024)+"KiB "+(error!=null?error.toString():""));
2823					if (callback != null) {
2824						callback.error(R.string.error_publish_avatar_server_reject, avatar);
2825					}
2826				}
2827			}
2828		});
2829	}
2830
2831	public void republishAvatarIfNeeded(Account account) {
2832		if (account.getAxolotlService().isPepBroken()) {
2833			Log.d(Config.LOGTAG,account.getJid().toBareJid()+": skipping republication of avatar because pep is broken");
2834			return;
2835		}
2836		IqPacket packet = this.mIqGenerator.retrieveAvatarMetaData(null);
2837		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2838
2839			private Avatar parseAvatar(IqPacket packet) {
2840				Element pubsub = packet.findChild("pubsub", "http://jabber.org/protocol/pubsub");
2841				if (pubsub != null) {
2842					Element items = pubsub.findChild("items");
2843					if (items != null) {
2844						return Avatar.parseMetadata(items);
2845					}
2846				}
2847				return null;
2848			}
2849
2850			private boolean errorIsItemNotFound(IqPacket packet) {
2851				Element error = packet.findChild("error");
2852				return packet.getType() == IqPacket.TYPE.ERROR
2853						&& error != null
2854						&& error.hasChild("item-not-found");
2855			}
2856
2857			@Override
2858			public void onIqPacketReceived(Account account, IqPacket packet) {
2859				if (packet.getType() == IqPacket.TYPE.RESULT || errorIsItemNotFound(packet)) {
2860					Avatar serverAvatar = parseAvatar(packet);
2861					if (serverAvatar == null && account.getAvatar() != null) {
2862						Avatar avatar = fileBackend.getStoredPepAvatar(account.getAvatar());
2863						if (avatar != null) {
2864							Log.d(Config.LOGTAG,account.getJid().toBareJid()+": avatar on server was null. republishing");
2865							publishAvatar(account, fileBackend.getStoredPepAvatar(account.getAvatar()), null);
2866						} else {
2867							Log.e(Config.LOGTAG, account.getJid().toBareJid()+": error rereading avatar");
2868						}
2869					}
2870				}
2871			}
2872		});
2873	}
2874
2875	public void fetchAvatar(Account account, Avatar avatar) {
2876		fetchAvatar(account, avatar, null);
2877	}
2878
2879	public void fetchAvatar(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2880		final String KEY = generateFetchKey(account, avatar);
2881		synchronized (this.mInProgressAvatarFetches) {
2882			if (!this.mInProgressAvatarFetches.contains(KEY)) {
2883				switch (avatar.origin) {
2884					case PEP:
2885						this.mInProgressAvatarFetches.add(KEY);
2886						fetchAvatarPep(account, avatar, callback);
2887						break;
2888					case VCARD:
2889						this.mInProgressAvatarFetches.add(KEY);
2890						fetchAvatarVcard(account, avatar, callback);
2891						break;
2892				}
2893			}
2894		}
2895	}
2896
2897	private void fetchAvatarPep(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2898		IqPacket packet = this.mIqGenerator.retrievePepAvatar(avatar);
2899		sendIqPacket(account, packet, new OnIqPacketReceived() {
2900
2901			@Override
2902			public void onIqPacketReceived(Account account, IqPacket result) {
2903				synchronized (mInProgressAvatarFetches) {
2904					mInProgressAvatarFetches.remove(generateFetchKey(account, avatar));
2905				}
2906				final String ERROR = account.getJid().toBareJid()
2907						+ ": fetching avatar for " + avatar.owner + " failed ";
2908				if (result.getType() == IqPacket.TYPE.RESULT) {
2909					avatar.image = mIqParser.avatarData(result);
2910					if (avatar.image != null) {
2911						if (getFileBackend().save(avatar)) {
2912							if (account.getJid().toBareJid().equals(avatar.owner)) {
2913								if (account.setAvatar(avatar.getFilename())) {
2914									databaseBackend.updateAccount(account);
2915								}
2916								getAvatarService().clear(account);
2917								updateConversationUi();
2918								updateAccountUi();
2919							} else {
2920								Contact contact = account.getRoster()
2921										.getContact(avatar.owner);
2922								contact.setAvatar(avatar);
2923								getAvatarService().clear(contact);
2924								updateConversationUi();
2925								updateRosterUi();
2926							}
2927							if (callback != null) {
2928								callback.success(avatar);
2929							}
2930							Log.d(Config.LOGTAG, account.getJid().toBareJid()
2931									+ ": successfully fetched pep avatar for " + avatar.owner);
2932							return;
2933						}
2934					} else {
2935
2936						Log.d(Config.LOGTAG, ERROR + "(parsing error)");
2937					}
2938				} else {
2939					Element error = result.findChild("error");
2940					if (error == null) {
2941						Log.d(Config.LOGTAG, ERROR + "(server error)");
2942					} else {
2943						Log.d(Config.LOGTAG, ERROR + error.toString());
2944					}
2945				}
2946				if (callback != null) {
2947					callback.error(0, null);
2948				}
2949
2950			}
2951		});
2952	}
2953
2954	private void fetchAvatarVcard(final Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2955		IqPacket packet = this.mIqGenerator.retrieveVcardAvatar(avatar);
2956		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2957			@Override
2958			public void onIqPacketReceived(Account account, IqPacket packet) {
2959				synchronized (mInProgressAvatarFetches) {
2960					mInProgressAvatarFetches.remove(generateFetchKey(account, avatar));
2961				}
2962				if (packet.getType() == IqPacket.TYPE.RESULT) {
2963					Element vCard = packet.findChild("vCard", "vcard-temp");
2964					Element photo = vCard != null ? vCard.findChild("PHOTO") : null;
2965					String image = photo != null ? photo.findChildContent("BINVAL") : null;
2966					if (image != null) {
2967						avatar.image = image;
2968						if (getFileBackend().save(avatar)) {
2969							Log.d(Config.LOGTAG, account.getJid().toBareJid()
2970									+ ": successfully fetched vCard avatar for " + avatar.owner);
2971							if (avatar.owner.isBareJid()) {
2972								if (account.getJid().toBareJid().equals(avatar.owner) && account.getAvatar() == null) {
2973									Log.d(Config.LOGTAG,account.getJid().toBareJid()+": had no avatar. replacing with vcard");
2974									account.setAvatar(avatar.getFilename());
2975									databaseBackend.updateAccount(account);
2976									getAvatarService().clear(account);
2977									updateAccountUi();
2978								} else {
2979									Contact contact = account.getRoster().getContact(avatar.owner);
2980									contact.setAvatar(avatar);
2981									getAvatarService().clear(contact);
2982									updateRosterUi();
2983								}
2984								updateConversationUi();
2985							} else {
2986								Conversation conversation = find(account, avatar.owner.toBareJid());
2987								if (conversation != null && conversation.getMode() == Conversation.MODE_MULTI) {
2988									MucOptions.User user = conversation.getMucOptions().findUserByFullJid(avatar.owner);
2989									if (user != null) {
2990										if (user.setAvatar(avatar)) {
2991											getAvatarService().clear(user);
2992											updateConversationUi();
2993											updateMucRosterUi();
2994										}
2995									}
2996								}
2997							}
2998						}
2999					}
3000				}
3001			}
3002		});
3003	}
3004
3005	public void checkForAvatar(Account account, final UiCallback<Avatar> callback) {
3006		IqPacket packet = this.mIqGenerator.retrieveAvatarMetaData(null);
3007		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
3008
3009			@Override
3010			public void onIqPacketReceived(Account account, IqPacket packet) {
3011				if (packet.getType() == IqPacket.TYPE.RESULT) {
3012					Element pubsub = packet.findChild("pubsub","http://jabber.org/protocol/pubsub");
3013					if (pubsub != null) {
3014						Element items = pubsub.findChild("items");
3015						if (items != null) {
3016							Avatar avatar = Avatar.parseMetadata(items);
3017							if (avatar != null) {
3018								avatar.owner = account.getJid().toBareJid();
3019								if (fileBackend.isAvatarCached(avatar)) {
3020									if (account.setAvatar(avatar.getFilename())) {
3021										databaseBackend.updateAccount(account);
3022									}
3023									getAvatarService().clear(account);
3024									callback.success(avatar);
3025								} else {
3026									fetchAvatarPep(account, avatar, callback);
3027								}
3028								return;
3029							}
3030						}
3031					}
3032				}
3033				callback.error(0, null);
3034			}
3035		});
3036	}
3037
3038	public void deleteContactOnServer(Contact contact) {
3039		contact.resetOption(Contact.Options.PREEMPTIVE_GRANT);
3040		contact.resetOption(Contact.Options.DIRTY_PUSH);
3041		contact.setOption(Contact.Options.DIRTY_DELETE);
3042		Account account = contact.getAccount();
3043		if (account.getStatus() == Account.State.ONLINE) {
3044			IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
3045			Element item = iq.query(Xmlns.ROSTER).addChild("item");
3046			item.setAttribute("jid", contact.getJid().toString());
3047			item.setAttribute("subscription", "remove");
3048			account.getXmppConnection().sendIqPacket(iq, mDefaultIqHandler);
3049		}
3050	}
3051
3052	public void updateConversation(final Conversation conversation) {
3053		mDatabaseExecutor.execute(new Runnable() {
3054			@Override
3055			public void run() {
3056				databaseBackend.updateConversation(conversation);
3057			}
3058		});
3059	}
3060
3061	private void reconnectAccount(final Account account, final boolean force, final boolean interactive) {
3062		synchronized (account) {
3063			XmppConnection connection = account.getXmppConnection();
3064			if (connection == null) {
3065				connection = createConnection(account);
3066				account.setXmppConnection(connection);
3067			}
3068			boolean hasInternet = hasInternetConnection();
3069			if (!account.isOptionSet(Account.OPTION_DISABLED) && hasInternet) {
3070				if (!force) {
3071					disconnect(account, false);
3072				}
3073				Thread thread = new Thread(connection);
3074				connection.setInteractive(interactive);
3075				connection.prepareNewConnection();
3076				connection.interrupt();
3077				thread.start();
3078				scheduleWakeUpCall(Config.CONNECT_DISCO_TIMEOUT, account.getUuid().hashCode());
3079			} else {
3080				disconnect(account, force || account.getTrueStatus().isError() || !hasInternet);
3081				account.getRoster().clearPresences();
3082				connection.resetEverything();
3083				account.getAxolotlService().resetBrokenness();
3084				if (!hasInternet) {
3085					account.setStatus(Account.State.NO_INTERNET);
3086				}
3087			}
3088		}
3089	}
3090
3091	public void reconnectAccountInBackground(final Account account) {
3092		new Thread(new Runnable() {
3093			@Override
3094			public void run() {
3095				reconnectAccount(account, false, true);
3096			}
3097		}).start();
3098	}
3099
3100	public void invite(Conversation conversation, Jid contact) {
3101		Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid() + ": inviting " + contact + " to " + conversation.getJid().toBareJid());
3102		MessagePacket packet = mMessageGenerator.invite(conversation, contact);
3103		sendMessagePacket(conversation.getAccount(), packet);
3104	}
3105
3106	public void directInvite(Conversation conversation, Jid jid) {
3107		MessagePacket packet = mMessageGenerator.directInvite(conversation, jid);
3108		sendMessagePacket(conversation.getAccount(), packet);
3109	}
3110
3111	public void resetSendingToWaiting(Account account) {
3112		for (Conversation conversation : getConversations()) {
3113			if (conversation.getAccount() == account) {
3114				conversation.findUnsentTextMessages(new Conversation.OnMessageFound() {
3115
3116					@Override
3117					public void onMessageFound(Message message) {
3118						markMessage(message, Message.STATUS_WAITING);
3119					}
3120				});
3121			}
3122		}
3123	}
3124
3125	public Message markMessage(final Account account, final Jid recipient, final String uuid, final int status) {
3126		return markMessage(account, recipient, uuid, status, null);
3127	}
3128
3129	public Message markMessage(final Account account, final Jid recipient, final String uuid, final int status, String errorMessage) {
3130		if (uuid == null) {
3131			return null;
3132		}
3133		for (Conversation conversation : getConversations()) {
3134			if (conversation.getJid().toBareJid().equals(recipient) && conversation.getAccount() == account) {
3135				final Message message = conversation.findSentMessageWithUuidOrRemoteId(uuid);
3136				if (message != null) {
3137					markMessage(message, status, errorMessage);
3138				}
3139				return message;
3140			}
3141		}
3142		return null;
3143	}
3144
3145	public boolean markMessage(Conversation conversation, String uuid, int status) {
3146		if (uuid == null) {
3147			return false;
3148		} else {
3149			Message message = conversation.findSentMessageWithUuid(uuid);
3150			if (message != null) {
3151				markMessage(message, status);
3152				return true;
3153			} else {
3154				return false;
3155			}
3156		}
3157	}
3158
3159	public void markMessage(Message message, int status) {
3160		markMessage(message, status, null);
3161	}
3162
3163
3164	public void markMessage(Message message, int status, String errorMessage) {
3165		if (status == Message.STATUS_SEND_FAILED
3166				&& (message.getStatus() == Message.STATUS_SEND_RECEIVED || message
3167				.getStatus() == Message.STATUS_SEND_DISPLAYED)) {
3168			return;
3169		}
3170		message.setErrorMessage(errorMessage);
3171		message.setStatus(status);
3172		databaseBackend.updateMessage(message);
3173		updateConversationUi();
3174	}
3175
3176	public SharedPreferences getPreferences() {
3177		return PreferenceManager
3178				.getDefaultSharedPreferences(getApplicationContext());
3179	}
3180
3181	public long getAutomaticMessageDeletionDate() {
3182		try {
3183			final long timeout = Long.parseLong(getPreferences().getString(SettingsActivity.AUTOMATIC_MESSAGE_DELETION, "0")) * 1000;
3184			return timeout == 0 ? timeout : System.currentTimeMillis() - timeout;
3185		} catch (NumberFormatException e) {
3186			return 0;
3187		}
3188	}
3189
3190	public boolean confirmMessages() {
3191		return getPreferences().getBoolean("confirm_messages", true);
3192	}
3193
3194	public boolean allowMessageCorrection() {
3195		return getPreferences().getBoolean("allow_message_correction", true);
3196	}
3197
3198	public boolean sendChatStates() {
3199		return getPreferences().getBoolean("chat_states", false);
3200	}
3201
3202	private boolean respectAutojoin() {
3203		return getPreferences().getBoolean("autojoin", true);
3204	}
3205
3206	public boolean indicateReceived() {
3207		return getPreferences().getBoolean("indicate_received", false);
3208	}
3209
3210	public boolean useTorToConnect() {
3211		return Config.FORCE_ORBOT || getPreferences().getBoolean("use_tor", false);
3212	}
3213
3214	public boolean showExtendedConnectionOptions() {
3215		return getPreferences().getBoolean("show_connection_options", false);
3216	}
3217
3218	public boolean broadcastLastActivity() {
3219		return getPreferences().getBoolean("last_activity", false);
3220	}
3221
3222	public int unreadCount() {
3223		int count = 0;
3224		for (Conversation conversation : getConversations()) {
3225			count += conversation.unreadCount();
3226		}
3227		return count;
3228	}
3229
3230
3231	public void showErrorToastInUi(int resId) {
3232		if (mOnShowErrorToast != null) {
3233			mOnShowErrorToast.onShowErrorToast(resId);
3234		}
3235	}
3236
3237	public void updateConversationUi() {
3238		if (mOnConversationUpdate != null) {
3239			mOnConversationUpdate.onConversationUpdate();
3240		}
3241	}
3242
3243	public void updateAccountUi() {
3244		if (mOnAccountUpdate != null) {
3245			mOnAccountUpdate.onAccountUpdate();
3246		}
3247	}
3248
3249	public void updateRosterUi() {
3250		if (mOnRosterUpdate != null) {
3251			mOnRosterUpdate.onRosterUpdate();
3252		}
3253	}
3254
3255	public boolean displayCaptchaRequest(Account account, String id, Data data, Bitmap captcha) {
3256		if (mOnCaptchaRequested != null) {
3257			DisplayMetrics metrics = getApplicationContext().getResources().getDisplayMetrics();
3258			Bitmap scaled = Bitmap.createScaledBitmap(captcha, (int) (captcha.getWidth() * metrics.scaledDensity),
3259					(int) (captcha.getHeight() * metrics.scaledDensity), false);
3260
3261			mOnCaptchaRequested.onCaptchaRequested(account, id, data, scaled);
3262			return true;
3263		}
3264		return false;
3265	}
3266
3267	public void updateBlocklistUi(final OnUpdateBlocklist.Status status) {
3268		if (mOnUpdateBlocklist != null) {
3269			mOnUpdateBlocklist.OnUpdateBlocklist(status);
3270		}
3271	}
3272
3273	public void updateMucRosterUi() {
3274		if (mOnMucRosterUpdate != null) {
3275			mOnMucRosterUpdate.onMucRosterUpdate();
3276		}
3277	}
3278
3279	public void keyStatusUpdated(AxolotlService.FetchStatus report) {
3280		if (mOnKeyStatusUpdated != null) {
3281			mOnKeyStatusUpdated.onKeyStatusUpdated(report);
3282		}
3283	}
3284
3285	public Account findAccountByJid(final Jid accountJid) {
3286		for (Account account : this.accounts) {
3287			if (account.getJid().toBareJid().equals(accountJid.toBareJid())) {
3288				return account;
3289			}
3290		}
3291		return null;
3292	}
3293
3294	public Conversation findConversationByUuid(String uuid) {
3295		for (Conversation conversation : getConversations()) {
3296			if (conversation.getUuid().equals(uuid)) {
3297				return conversation;
3298			}
3299		}
3300		return null;
3301	}
3302
3303	public boolean markRead(final Conversation conversation) {
3304		return markRead(conversation,true);
3305	}
3306
3307	public boolean markRead(final Conversation conversation, boolean clear) {
3308		if (clear) {
3309			mNotificationService.clear(conversation);
3310		}
3311		final List<Message> readMessages = conversation.markRead();
3312		if (readMessages.size() > 0) {
3313			Runnable runnable = new Runnable() {
3314				@Override
3315				public void run() {
3316					for (Message message : readMessages) {
3317						databaseBackend.updateMessage(message);
3318					}
3319				}
3320			};
3321			mDatabaseExecutor.execute(runnable);
3322			updateUnreadCountBadge();
3323			return true;
3324		} else {
3325			return false;
3326		}
3327	}
3328
3329	public synchronized void updateUnreadCountBadge() {
3330		int count = unreadCount();
3331		if (unreadCount != count) {
3332			Log.d(Config.LOGTAG, "update unread count to " + count);
3333			if (count > 0) {
3334				ShortcutBadger.applyCount(getApplicationContext(), count);
3335			} else {
3336				ShortcutBadger.removeCount(getApplicationContext());
3337			}
3338			unreadCount = count;
3339		}
3340	}
3341
3342	public void sendReadMarker(final Conversation conversation) {
3343		final Message markable = conversation.getLatestMarkableMessage();
3344		if (this.markRead(conversation)) {
3345			updateConversationUi();
3346		}
3347		if (confirmMessages()
3348				&& markable != null
3349				&& markable.trusted()
3350				&& markable.getRemoteMsgId() != null) {
3351			Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid() + ": sending read marker to " + markable.getCounterpart().toString());
3352			Account account = conversation.getAccount();
3353			final Jid to = markable.getCounterpart();
3354			MessagePacket packet = mMessageGenerator.confirm(account, to, markable.getRemoteMsgId());
3355			this.sendMessagePacket(conversation.getAccount(), packet);
3356		}
3357	}
3358
3359	public SecureRandom getRNG() {
3360		return this.mRandom;
3361	}
3362
3363	public MemorizingTrustManager getMemorizingTrustManager() {
3364		return this.mMemorizingTrustManager;
3365	}
3366
3367	public void setMemorizingTrustManager(MemorizingTrustManager trustManager) {
3368		this.mMemorizingTrustManager = trustManager;
3369	}
3370
3371	public void updateMemorizingTrustmanager() {
3372		final MemorizingTrustManager tm;
3373		final boolean dontTrustSystemCAs = getPreferences().getBoolean("dont_trust_system_cas", false);
3374		if (dontTrustSystemCAs) {
3375			tm = new MemorizingTrustManager(getApplicationContext(), null);
3376		} else {
3377			tm = new MemorizingTrustManager(getApplicationContext());
3378		}
3379		setMemorizingTrustManager(tm);
3380	}
3381
3382	public PowerManager getPowerManager() {
3383		return this.pm;
3384	}
3385
3386	public LruCache<String, Bitmap> getBitmapCache() {
3387		return this.mBitmapCache;
3388	}
3389
3390	public void syncRosterToDisk(final Account account) {
3391		Runnable runnable = new Runnable() {
3392
3393			@Override
3394			public void run() {
3395				databaseBackend.writeRoster(account.getRoster());
3396			}
3397		};
3398		mDatabaseExecutor.execute(runnable);
3399
3400	}
3401
3402	public List<String> getKnownHosts() {
3403		final List<String> hosts = new ArrayList<>();
3404		for (final Account account : getAccounts()) {
3405			if (!hosts.contains(account.getServer().toString())) {
3406				hosts.add(account.getServer().toString());
3407			}
3408			for (final Contact contact : account.getRoster().getContacts()) {
3409				if (contact.showInRoster()) {
3410					final String server = contact.getServer().toString();
3411					if (server != null && !hosts.contains(server)) {
3412						hosts.add(server);
3413					}
3414				}
3415			}
3416		}
3417		if(Config.DOMAIN_LOCK != null && !hosts.contains(Config.DOMAIN_LOCK)) {
3418			hosts.add(Config.DOMAIN_LOCK);
3419		}
3420		if(Config.MAGIC_CREATE_DOMAIN != null && !hosts.contains(Config.MAGIC_CREATE_DOMAIN)) {
3421			hosts.add(Config.MAGIC_CREATE_DOMAIN);
3422		}
3423		return hosts;
3424	}
3425
3426	public List<String> getKnownConferenceHosts() {
3427		final ArrayList<String> mucServers = new ArrayList<>();
3428		for (final Account account : accounts) {
3429			if (account.getXmppConnection() != null) {
3430				final String server = account.getXmppConnection().getMucServer();
3431				if (server != null && !mucServers.contains(server)) {
3432					mucServers.add(server);
3433				}
3434			}
3435		}
3436		return mucServers;
3437	}
3438
3439	public void sendMessagePacket(Account account, MessagePacket packet) {
3440		XmppConnection connection = account.getXmppConnection();
3441		if (connection != null) {
3442			connection.sendMessagePacket(packet);
3443		}
3444	}
3445
3446	public void sendPresencePacket(Account account, PresencePacket packet) {
3447		XmppConnection connection = account.getXmppConnection();
3448		if (connection != null) {
3449			connection.sendPresencePacket(packet);
3450		}
3451	}
3452
3453	public void sendCreateAccountWithCaptchaPacket(Account account, String id, Data data) {
3454		final XmppConnection connection = account.getXmppConnection();
3455		if (connection != null) {
3456			IqPacket request = mIqGenerator.generateCreateAccountWithCaptcha(account, id, data);
3457			connection.sendUnmodifiedIqPacket(request, connection.registrationResponseListener);
3458		}
3459	}
3460
3461	public void sendIqPacket(final Account account, final IqPacket packet, final OnIqPacketReceived callback) {
3462		final XmppConnection connection = account.getXmppConnection();
3463		if (connection != null) {
3464			connection.sendIqPacket(packet, callback);
3465		}
3466	}
3467
3468	public void sendPresence(final Account account) {
3469		sendPresence(account, checkListeners() && broadcastLastActivity());
3470	}
3471
3472	private void sendPresence(final Account account, final boolean includeIdleTimestamp) {
3473		PresencePacket packet;
3474		if (manuallyChangePresence()) {
3475			packet =  mPresenceGenerator.selfPresence(account, account.getPresenceStatus());
3476			String message = account.getPresenceStatusMessage();
3477			if (message != null && !message.isEmpty()) {
3478				packet.addChild(new Element("status").setContent(message));
3479			}
3480		} else {
3481			packet = mPresenceGenerator.selfPresence(account, getTargetPresence());
3482		}
3483		if (mLastActivity > 0 && includeIdleTimestamp) {
3484			long since = Math.min(mLastActivity, System.currentTimeMillis()); //don't send future dates
3485			packet.addChild("idle","urn:xmpp:idle:1").setAttribute("since", AbstractGenerator.getTimestamp(since));
3486		}
3487		sendPresencePacket(account, packet);
3488	}
3489
3490	private void deactivateGracePeriod() {
3491		for(Account account : getAccounts()) {
3492			account.deactivateGracePeriod();
3493		}
3494	}
3495
3496	public void refreshAllPresences() {
3497		boolean includeIdleTimestamp = checkListeners() && broadcastLastActivity();
3498		for (Account account : getAccounts()) {
3499			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
3500				sendPresence(account, includeIdleTimestamp);
3501			}
3502		}
3503	}
3504
3505	private void refreshAllGcmTokens() {
3506		for(Account account : getAccounts()) {
3507			if (account.isOnlineAndConnected() && mPushManagementService.available(account)) {
3508				mPushManagementService.registerPushTokenOnServer(account);
3509			}
3510		}
3511	}
3512
3513	private void sendOfflinePresence(final Account account) {
3514		Log.d(Config.LOGTAG,account.getJid().toBareJid()+": sending offline presence");
3515		sendPresencePacket(account, mPresenceGenerator.sendOfflinePresence(account));
3516	}
3517
3518	public MessageGenerator getMessageGenerator() {
3519		return this.mMessageGenerator;
3520	}
3521
3522	public PresenceGenerator getPresenceGenerator() {
3523		return this.mPresenceGenerator;
3524	}
3525
3526	public IqGenerator getIqGenerator() {
3527		return this.mIqGenerator;
3528	}
3529
3530	public IqParser getIqParser() {
3531		return this.mIqParser;
3532	}
3533
3534	public JingleConnectionManager getJingleConnectionManager() {
3535		return this.mJingleConnectionManager;
3536	}
3537
3538	public MessageArchiveService getMessageArchiveService() {
3539		return this.mMessageArchiveService;
3540	}
3541
3542	public List<Contact> findContacts(Jid jid) {
3543		ArrayList<Contact> contacts = new ArrayList<>();
3544		for (Account account : getAccounts()) {
3545			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
3546				Contact contact = account.getRoster().getContactFromRoster(jid);
3547				if (contact != null) {
3548					contacts.add(contact);
3549				}
3550			}
3551		}
3552		return contacts;
3553	}
3554
3555	public Conversation findFirstMuc(Jid jid) {
3556		for(Conversation conversation : getConversations()) {
3557			if (conversation.getJid().toBareJid().equals(jid.toBareJid())
3558					&& conversation.getMode() == Conversation.MODE_MULTI) {
3559				return conversation;
3560			}
3561		}
3562		return null;
3563	}
3564
3565	public NotificationService getNotificationService() {
3566		return this.mNotificationService;
3567	}
3568
3569	public HttpConnectionManager getHttpConnectionManager() {
3570		return this.mHttpConnectionManager;
3571	}
3572
3573	public void resendFailedMessages(final Message message) {
3574		final Collection<Message> messages = new ArrayList<>();
3575		Message current = message;
3576		while (current.getStatus() == Message.STATUS_SEND_FAILED) {
3577			messages.add(current);
3578			if (current.mergeable(current.next())) {
3579				current = current.next();
3580			} else {
3581				break;
3582			}
3583		}
3584		for (final Message msg : messages) {
3585			msg.setTime(System.currentTimeMillis());
3586			markMessage(msg, Message.STATUS_WAITING);
3587			this.resendMessage(msg, false);
3588		}
3589	}
3590
3591	public void clearConversationHistory(final Conversation conversation) {
3592		conversation.clearMessages();
3593		conversation.setHasMessagesLeftOnServer(false); //avoid messages getting loaded through mam
3594		conversation.setLastClearHistory(System.currentTimeMillis());
3595		Runnable runnable = new Runnable() {
3596			@Override
3597			public void run() {
3598				databaseBackend.deleteMessagesInConversation(conversation);
3599				databaseBackend.updateConversation(conversation);
3600			}
3601		};
3602		mDatabaseExecutor.execute(runnable);
3603	}
3604
3605	public void sendBlockRequest(final Blockable blockable, boolean reportSpam) {
3606		if (blockable != null && blockable.getBlockedJid() != null) {
3607			final Jid jid = blockable.getBlockedJid();
3608			this.sendIqPacket(blockable.getAccount(), getIqGenerator().generateSetBlockRequest(jid, reportSpam), new OnIqPacketReceived() {
3609
3610				@Override
3611				public void onIqPacketReceived(final Account account, final IqPacket packet) {
3612					if (packet.getType() == IqPacket.TYPE.RESULT) {
3613						account.getBlocklist().add(jid);
3614						updateBlocklistUi(OnUpdateBlocklist.Status.BLOCKED);
3615					}
3616				}
3617			});
3618		}
3619	}
3620
3621	public void sendUnblockRequest(final Blockable blockable) {
3622		if (blockable != null && blockable.getJid() != null) {
3623			final Jid jid = blockable.getBlockedJid();
3624			this.sendIqPacket(blockable.getAccount(), getIqGenerator().generateSetUnblockRequest(jid), new OnIqPacketReceived() {
3625				@Override
3626				public void onIqPacketReceived(final Account account, final IqPacket packet) {
3627					if (packet.getType() == IqPacket.TYPE.RESULT) {
3628						account.getBlocklist().remove(jid);
3629						updateBlocklistUi(OnUpdateBlocklist.Status.UNBLOCKED);
3630					}
3631				}
3632			});
3633		}
3634	}
3635
3636	public void publishDisplayName(Account account) {
3637		String displayName = account.getDisplayName();
3638		if (displayName != null && !displayName.isEmpty()) {
3639			IqPacket publish = mIqGenerator.publishNick(displayName);
3640			sendIqPacket(account, publish, new OnIqPacketReceived() {
3641				@Override
3642				public void onIqPacketReceived(Account account, IqPacket packet) {
3643					if (packet.getType() == IqPacket.TYPE.ERROR) {
3644						Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": could not publish nick");
3645					}
3646				}
3647			});
3648		}
3649	}
3650
3651	public ServiceDiscoveryResult getCachedServiceDiscoveryResult(Pair<String, String> key) {
3652		ServiceDiscoveryResult result = discoCache.get(key);
3653		if (result != null) {
3654			return result;
3655		} else {
3656			result = databaseBackend.findDiscoveryResult(key.first, key.second);
3657			if (result != null) {
3658				discoCache.put(key, result);
3659			}
3660			return result;
3661		}
3662	}
3663
3664	public void fetchCaps(Account account, final Jid jid, final Presence presence) {
3665		final Pair<String,String> key = new Pair<>(presence.getHash(), presence.getVer());
3666		ServiceDiscoveryResult disco = getCachedServiceDiscoveryResult(key);
3667		if (disco != null) {
3668			presence.setServiceDiscoveryResult(disco);
3669		} else {
3670			if (!account.inProgressDiscoFetches.contains(key)) {
3671				account.inProgressDiscoFetches.add(key);
3672				IqPacket request = new IqPacket(IqPacket.TYPE.GET);
3673				request.setTo(jid);
3674				request.query("http://jabber.org/protocol/disco#info");
3675				Log.d(Config.LOGTAG,account.getJid().toBareJid()+": making disco request for "+key.second+" to "+jid);
3676				sendIqPacket(account, request, new OnIqPacketReceived() {
3677					@Override
3678					public void onIqPacketReceived(Account account, IqPacket discoPacket) {
3679						if (discoPacket.getType() == IqPacket.TYPE.RESULT) {
3680							ServiceDiscoveryResult disco = new ServiceDiscoveryResult(discoPacket);
3681							if (presence.getVer().equals(disco.getVer())) {
3682								databaseBackend.insertDiscoveryResult(disco);
3683								injectServiceDiscorveryResult(account.getRoster(), presence.getHash(), presence.getVer(), disco);
3684							} else {
3685								Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": mismatch in caps for contact " + jid + " " + presence.getVer() + " vs " + disco.getVer());
3686							}
3687						}
3688						account.inProgressDiscoFetches.remove(key);
3689					}
3690				});
3691			}
3692		}
3693	}
3694
3695	private void injectServiceDiscorveryResult(Roster roster, String hash, String ver, ServiceDiscoveryResult disco) {
3696		for(Contact contact : roster.getContacts()) {
3697			for(Presence presence : contact.getPresences().getPresences().values()) {
3698				if (hash.equals(presence.getHash()) && ver.equals(presence.getVer())) {
3699					presence.setServiceDiscoveryResult(disco);
3700				}
3701			}
3702		}
3703	}
3704
3705	public void fetchMamPreferences(Account account, final OnMamPreferencesFetched callback) {
3706		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
3707		request.addChild("prefs","urn:xmpp:mam:0");
3708		sendIqPacket(account, request, new OnIqPacketReceived() {
3709			@Override
3710			public void onIqPacketReceived(Account account, IqPacket packet) {
3711				Element prefs = packet.findChild("prefs","urn:xmpp:mam:0");
3712				if (packet.getType() == IqPacket.TYPE.RESULT && prefs != null) {
3713					callback.onPreferencesFetched(prefs);
3714				} else {
3715					callback.onPreferencesFetchFailed();
3716				}
3717			}
3718		});
3719	}
3720
3721	public PushManagementService getPushManagementService() {
3722		return mPushManagementService;
3723	}
3724
3725	public Account getPendingAccount() {
3726		Account pending = null;
3727		for(Account account : getAccounts()) {
3728			if (account.isOptionSet(Account.OPTION_REGISTER)) {
3729				pending = account;
3730			} else {
3731				return null;
3732			}
3733		}
3734		return pending;
3735	}
3736
3737	public void changeStatus(Account account, Presence.Status status, String statusMessage, boolean send) {
3738		if (!statusMessage.isEmpty()) {
3739			databaseBackend.insertPresenceTemplate(new PresenceTemplate(status, statusMessage));
3740		}
3741		changeStatusReal(account, status, statusMessage, send);
3742	}
3743
3744	private void changeStatusReal(Account account, Presence.Status status, String statusMessage, boolean send) {
3745		account.setPresenceStatus(status);
3746		account.setPresenceStatusMessage(statusMessage);
3747		databaseBackend.updateAccount(account);
3748		if (!account.isOptionSet(Account.OPTION_DISABLED) && send) {
3749			sendPresence(account);
3750		}
3751	}
3752
3753	public void changeStatus(Presence.Status status, String statusMessage) {
3754		if (!statusMessage.isEmpty()) {
3755			databaseBackend.insertPresenceTemplate(new PresenceTemplate(status, statusMessage));
3756		}
3757		for(Account account : getAccounts()) {
3758			changeStatusReal(account, status, statusMessage, true);
3759		}
3760	}
3761
3762	public List<PresenceTemplate> getPresenceTemplates(Account account) {
3763		List<PresenceTemplate> templates = databaseBackend.getPresenceTemplates();
3764		for(PresenceTemplate template : account.getSelfContact().getPresences().asTemplates()) {
3765			if (!templates.contains(template)) {
3766				templates.add(0, template);
3767			}
3768		}
3769		return templates;
3770	}
3771
3772	public void saveConversationAsBookmark(Conversation conversation, String name) {
3773		Account account = conversation.getAccount();
3774		Bookmark bookmark = new Bookmark(account, conversation.getJid().toBareJid());
3775		if (!conversation.getJid().isBareJid()) {
3776			bookmark.setNick(conversation.getJid().getResourcepart());
3777		}
3778		if (name != null && !name.trim().isEmpty()) {
3779			bookmark.setBookmarkName(name.trim());
3780		}
3781		bookmark.setAutojoin(getPreferences().getBoolean("autojoin",true));
3782		account.getBookmarks().add(bookmark);
3783		pushBookmarks(account);
3784		conversation.setBookmark(bookmark);
3785	}
3786
3787	public void clearStartTimeCounter() {
3788		mDatabaseExecutor.execute(new Runnable() {
3789			@Override
3790			public void run() {
3791				databaseBackend.clearStartTimeCounter(false);
3792			}
3793		});
3794	}
3795
3796	public boolean verifyFingerprints(Contact contact, List<XmppUri.Fingerprint> fingerprints) {
3797		boolean needsRosterWrite = false;
3798		boolean performedVerification = false;
3799		final AxolotlService axolotlService = contact.getAccount().getAxolotlService();
3800		for(XmppUri.Fingerprint fp : fingerprints) {
3801			if (fp.type == XmppUri.FingerprintType.OTR) {
3802				performedVerification |= contact.addOtrFingerprint(fp.fingerprint);
3803				needsRosterWrite |= performedVerification;
3804			} else if (fp.type == XmppUri.FingerprintType.OMEMO) {
3805				String fingerprint = "05"+fp.fingerprint.replaceAll("\\s","");
3806				FingerprintStatus fingerprintStatus = axolotlService.getFingerprintTrust(fingerprint);
3807				if (fingerprintStatus != null) {
3808					if (!fingerprintStatus.isVerified()) {
3809						performedVerification = true;
3810						axolotlService.setFingerprintTrust(fingerprint,fingerprintStatus.toVerified());
3811					}
3812				} else {
3813					axolotlService.preVerifyFingerprint(contact,fingerprint);
3814				}
3815			}
3816		}
3817		if (needsRosterWrite) {
3818			syncRosterToDisk(contact.getAccount());
3819		}
3820		return performedVerification;
3821	}
3822
3823	public boolean verifyFingerprints(Account account, List<XmppUri.Fingerprint> fingerprints) {
3824		final AxolotlService axolotlService = account.getAxolotlService();
3825		boolean verifiedSomething = false;
3826		for(XmppUri.Fingerprint fp : fingerprints) {
3827			if (fp.type == XmppUri.FingerprintType.OMEMO) {
3828				String fingerprint = "05"+fp.fingerprint.replaceAll("\\s","");
3829				Log.d(Config.LOGTAG,"trying to verify own fp="+fingerprint);
3830				FingerprintStatus fingerprintStatus = axolotlService.getFingerprintTrust(fingerprint);
3831				if (fingerprintStatus != null) {
3832					if (!fingerprintStatus.isVerified()) {
3833						axolotlService.setFingerprintTrust(fingerprint,fingerprintStatus.toVerified());
3834						verifiedSomething = true;
3835					}
3836				} else {
3837					axolotlService.preVerifyFingerprint(account,fingerprint);
3838					verifiedSomething = true;
3839				}
3840			}
3841		}
3842		return verifiedSomething;
3843	}
3844
3845	public boolean blindTrustBeforeVerification() {
3846		return getPreferences().getBoolean(SettingsActivity.BLIND_TRUST_BEFORE_VERIFICATION, true);
3847	}
3848
3849	public interface OnMamPreferencesFetched {
3850		void onPreferencesFetched(Element prefs);
3851		void onPreferencesFetchFailed();
3852	}
3853
3854	public void pushMamPreferences(Account account, Element prefs) {
3855		IqPacket set = new IqPacket(IqPacket.TYPE.SET);
3856		set.addChild(prefs);
3857		sendIqPacket(account, set, null);
3858	}
3859
3860	public interface OnAccountCreated {
3861		void onAccountCreated(Account account);
3862
3863		void informUser(int r);
3864	}
3865
3866	public interface OnMoreMessagesLoaded {
3867		void onMoreMessagesLoaded(int count, Conversation conversation);
3868
3869		void informUser(int r);
3870	}
3871
3872	public interface OnAccountPasswordChanged {
3873		void onPasswordChangeSucceeded();
3874
3875		void onPasswordChangeFailed();
3876	}
3877
3878	public interface OnAffiliationChanged {
3879		void onAffiliationChangedSuccessful(Jid jid);
3880
3881		void onAffiliationChangeFailed(Jid jid, int resId);
3882	}
3883
3884	public interface OnRoleChanged {
3885		void onRoleChangedSuccessful(String nick);
3886
3887		void onRoleChangeFailed(String nick, int resid);
3888	}
3889
3890	public interface OnConversationUpdate {
3891		void onConversationUpdate();
3892	}
3893
3894	public interface OnAccountUpdate {
3895		void onAccountUpdate();
3896	}
3897
3898	public interface OnCaptchaRequested {
3899		void onCaptchaRequested(Account account,
3900								String id,
3901								Data data,
3902								Bitmap captcha);
3903	}
3904
3905	public interface OnRosterUpdate {
3906		void onRosterUpdate();
3907	}
3908
3909	public interface OnMucRosterUpdate {
3910		void onMucRosterUpdate();
3911	}
3912
3913	public interface OnConferenceConfigurationFetched {
3914		void onConferenceConfigurationFetched(Conversation conversation);
3915
3916		void onFetchFailed(Conversation conversation, Element error);
3917	}
3918
3919	public interface OnConferenceJoined {
3920		void onConferenceJoined(Conversation conversation);
3921	}
3922
3923	public interface OnConferenceOptionsPushed {
3924		void onPushSucceeded();
3925
3926		void onPushFailed();
3927	}
3928
3929	public interface OnShowErrorToast {
3930		void onShowErrorToast(int resId);
3931	}
3932
3933	public class XmppConnectionBinder extends Binder {
3934		public XmppConnectionService getService() {
3935			return XmppConnectionService.this;
3936		}
3937	}
3938}