1package eu.siacs.conversations.services;
   2
   3import android.annotation.SuppressLint;
   4import android.annotation.TargetApi;
   5import android.app.AlarmManager;
   6import android.app.PendingIntent;
   7import android.app.Service;
   8import android.content.Context;
   9import android.content.Intent;
  10import android.content.IntentFilter;
  11import android.content.SharedPreferences;
  12import android.database.ContentObserver;
  13import android.graphics.Bitmap;
  14import android.media.AudioManager;
  15import android.net.ConnectivityManager;
  16import android.net.NetworkInfo;
  17import android.net.Uri;
  18import android.os.Binder;
  19import android.os.Build;
  20import android.os.Bundle;
  21import android.os.Environment;
  22import android.os.IBinder;
  23import android.os.PowerManager;
  24import android.os.PowerManager.WakeLock;
  25import android.os.SystemClock;
  26import android.preference.PreferenceManager;
  27import android.provider.ContactsContract;
  28import android.security.KeyChain;
  29import android.support.annotation.BoolRes;
  30import android.support.annotation.IntegerRes;
  31import android.support.v4.app.RemoteInput;
  32import android.util.DisplayMetrics;
  33import android.util.Log;
  34import android.util.LruCache;
  35import android.util.Pair;
  36
  37import net.java.otr4j.OtrException;
  38import net.java.otr4j.session.Session;
  39import net.java.otr4j.session.SessionID;
  40import net.java.otr4j.session.SessionImpl;
  41import net.java.otr4j.session.SessionStatus;
  42
  43import org.openintents.openpgp.IOpenPgpService2;
  44import org.openintents.openpgp.util.OpenPgpApi;
  45import org.openintents.openpgp.util.OpenPgpServiceConnection;
  46
  47import java.math.BigInteger;
  48import java.net.URL;
  49import java.security.SecureRandom;
  50import java.security.cert.CertificateException;
  51import java.security.cert.X509Certificate;
  52import java.util.ArrayList;
  53import java.util.Arrays;
  54import java.util.Collection;
  55import java.util.Collections;
  56import java.util.HashMap;
  57import java.util.HashSet;
  58import java.util.Hashtable;
  59import java.util.Iterator;
  60import java.util.List;
  61import java.util.ListIterator;
  62import java.util.Locale;
  63import java.util.Map;
  64import java.util.concurrent.CopyOnWriteArrayList;
  65import java.util.concurrent.atomic.AtomicBoolean;
  66import java.util.concurrent.atomic.AtomicLong;
  67
  68import de.duenndns.ssl.MemorizingTrustManager;
  69import eu.siacs.conversations.Config;
  70import eu.siacs.conversations.R;
  71import eu.siacs.conversations.crypto.PgpDecryptionService;
  72import eu.siacs.conversations.crypto.PgpEngine;
  73import eu.siacs.conversations.crypto.axolotl.AxolotlService;
  74import eu.siacs.conversations.crypto.axolotl.FingerprintStatus;
  75import eu.siacs.conversations.crypto.axolotl.XmppAxolotlMessage;
  76import eu.siacs.conversations.entities.Account;
  77import eu.siacs.conversations.entities.Blockable;
  78import eu.siacs.conversations.entities.Bookmark;
  79import eu.siacs.conversations.entities.Contact;
  80import eu.siacs.conversations.entities.Conversation;
  81import eu.siacs.conversations.entities.DownloadableFile;
  82import eu.siacs.conversations.entities.Message;
  83import eu.siacs.conversations.entities.MucOptions;
  84import eu.siacs.conversations.entities.MucOptions.OnRenameListener;
  85import eu.siacs.conversations.entities.Presence;
  86import eu.siacs.conversations.entities.PresenceTemplate;
  87import eu.siacs.conversations.entities.Roster;
  88import eu.siacs.conversations.entities.ServiceDiscoveryResult;
  89import eu.siacs.conversations.entities.Transferable;
  90import eu.siacs.conversations.entities.TransferablePlaceholder;
  91import eu.siacs.conversations.generator.AbstractGenerator;
  92import eu.siacs.conversations.generator.IqGenerator;
  93import eu.siacs.conversations.generator.MessageGenerator;
  94import eu.siacs.conversations.generator.PresenceGenerator;
  95import eu.siacs.conversations.http.HttpConnectionManager;
  96import eu.siacs.conversations.http.AesGcmURLStreamHandlerFactory;
  97import eu.siacs.conversations.parser.AbstractParser;
  98import eu.siacs.conversations.parser.IqParser;
  99import eu.siacs.conversations.parser.MessageParser;
 100import eu.siacs.conversations.parser.PresenceParser;
 101import eu.siacs.conversations.persistance.DatabaseBackend;
 102import eu.siacs.conversations.persistance.FileBackend;
 103import eu.siacs.conversations.ui.SettingsActivity;
 104import eu.siacs.conversations.ui.UiCallback;
 105import eu.siacs.conversations.utils.ConversationsFileObserver;
 106import eu.siacs.conversations.utils.CryptoHelper;
 107import eu.siacs.conversations.utils.ExceptionHelper;
 108import eu.siacs.conversations.utils.MimeUtils;
 109import eu.siacs.conversations.utils.OnPhoneContactsLoadedListener;
 110import eu.siacs.conversations.utils.PRNGFixes;
 111import eu.siacs.conversations.utils.PhoneHelper;
 112import eu.siacs.conversations.utils.ReplacingSerialSingleThreadExecutor;
 113import eu.siacs.conversations.utils.Resolver;
 114import eu.siacs.conversations.utils.SerialSingleThreadExecutor;
 115import eu.siacs.conversations.xml.Namespace;
 116import eu.siacs.conversations.utils.XmppUri;
 117import eu.siacs.conversations.xml.Element;
 118import eu.siacs.conversations.xmpp.OnBindListener;
 119import eu.siacs.conversations.xmpp.OnContactStatusChanged;
 120import eu.siacs.conversations.xmpp.OnIqPacketReceived;
 121import eu.siacs.conversations.xmpp.OnKeyStatusUpdated;
 122import eu.siacs.conversations.xmpp.OnMessageAcknowledged;
 123import eu.siacs.conversations.xmpp.OnMessagePacketReceived;
 124import eu.siacs.conversations.xmpp.OnPresencePacketReceived;
 125import eu.siacs.conversations.xmpp.OnStatusChanged;
 126import eu.siacs.conversations.xmpp.OnUpdateBlocklist;
 127import eu.siacs.conversations.xmpp.Patches;
 128import eu.siacs.conversations.xmpp.XmppConnection;
 129import eu.siacs.conversations.xmpp.chatstate.ChatState;
 130import eu.siacs.conversations.xmpp.forms.Data;
 131import eu.siacs.conversations.xmpp.jid.InvalidJidException;
 132import eu.siacs.conversations.xmpp.jid.Jid;
 133import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
 134import eu.siacs.conversations.xmpp.jingle.OnJinglePacketReceived;
 135import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
 136import eu.siacs.conversations.xmpp.mam.MamReference;
 137import eu.siacs.conversations.xmpp.pep.Avatar;
 138import eu.siacs.conversations.xmpp.stanzas.IqPacket;
 139import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
 140import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
 141import me.leolin.shortcutbadger.ShortcutBadger;
 142
 143public class XmppConnectionService extends Service {
 144
 145	static {
 146		URL.setURLStreamHandlerFactory(new AesGcmURLStreamHandlerFactory());
 147	}
 148
 149	public static final String ACTION_REPLY_TO_CONVERSATION = "reply_to_conversations";
 150	public static final String ACTION_MARK_AS_READ = "mark_as_read";
 151	public static final String ACTION_CLEAR_NOTIFICATION = "clear_notification";
 152	public static final String ACTION_DISMISS_ERROR_NOTIFICATIONS = "dismiss_error";
 153	public static final String ACTION_TRY_AGAIN = "try_again";
 154	public static final String ACTION_IDLE_PING = "idle_ping";
 155	private static final String ACTION_MERGE_PHONE_CONTACTS = "merge_phone_contacts";
 156	public static final String ACTION_GCM_TOKEN_REFRESH = "gcm_token_refresh";
 157	public static final String ACTION_GCM_MESSAGE_RECEIVED = "gcm_message_received";
 158	private final SerialSingleThreadExecutor mFileAddingExecutor = new SerialSingleThreadExecutor("FileAdding");
 159	private final SerialSingleThreadExecutor mVideoCompressionExecutor = new SerialSingleThreadExecutor("VideoCompression");
 160	private final SerialSingleThreadExecutor mDatabaseWriterExecutor = new SerialSingleThreadExecutor("DatabaseWriter");
 161	private final SerialSingleThreadExecutor mDatabaseReaderExecutor = new SerialSingleThreadExecutor("DatabaseReader");
 162	private ReplacingSerialSingleThreadExecutor mContactMergerExecutor = new ReplacingSerialSingleThreadExecutor(true);
 163	private final IBinder mBinder = new XmppConnectionBinder();
 164	private final List<Conversation> conversations = new CopyOnWriteArrayList<>();
 165	private final IqGenerator mIqGenerator = new IqGenerator(this);
 166	private final List<String> mInProgressAvatarFetches = new ArrayList<>();
 167	private final HashSet<Jid> mLowPingTimeoutMode = new HashSet<>();
 168
 169	private long mLastActivity = 0;
 170
 171	public DatabaseBackend databaseBackend;
 172	private ContentObserver contactObserver = new ContentObserver(null) {
 173		@Override
 174		public void onChange(boolean selfChange) {
 175			super.onChange(selfChange);
 176			Intent intent = new Intent(getApplicationContext(),
 177					XmppConnectionService.class);
 178			intent.setAction(ACTION_MERGE_PHONE_CONTACTS);
 179			startService(intent);
 180		}
 181	};
 182	private FileBackend fileBackend = new FileBackend(this);
 183	private MemorizingTrustManager mMemorizingTrustManager;
 184	private NotificationService mNotificationService = new NotificationService(this);
 185	private ShortcutService mShortcutService = new ShortcutService(this);
 186	private AtomicBoolean mInitialAddressbookSyncCompleted = new AtomicBoolean(false);
 187	private AtomicBoolean mForceForegroundService = new AtomicBoolean(false);
 188	private OnMessagePacketReceived mMessageParser = new MessageParser(this);
 189	private OnPresencePacketReceived mPresenceParser = new PresenceParser(this);
 190	private IqParser mIqParser = new IqParser(this);
 191	private OnIqPacketReceived mDefaultIqHandler = new OnIqPacketReceived() {
 192		@Override
 193		public void onIqPacketReceived(Account account, IqPacket packet) {
 194			if (packet.getType() != IqPacket.TYPE.RESULT) {
 195				Element error = packet.findChild("error");
 196				String text = error != null ? error.findChildContent("text") : null;
 197				if (text != null) {
 198					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": received iq error - " + text);
 199				}
 200			}
 201		}
 202	};
 203	private MessageGenerator mMessageGenerator = new MessageGenerator(this);
 204	private PresenceGenerator mPresenceGenerator = new PresenceGenerator(this);
 205	private List<Account> accounts;
 206	private JingleConnectionManager mJingleConnectionManager = new JingleConnectionManager(
 207			this);
 208	public OnContactStatusChanged onContactStatusChanged = new OnContactStatusChanged() {
 209
 210		@Override
 211		public void onContactStatusChanged(Contact contact, boolean online) {
 212			Conversation conversation = find(getConversations(), contact);
 213			if (conversation != null) {
 214				if (online) {
 215					conversation.endOtrIfNeeded();
 216					if (contact.getPresences().size() == 1) {
 217						sendUnsentMessages(conversation);
 218					}
 219				} else {
 220					//check if the resource we are haveing a conversation with is still online
 221					if (conversation.hasValidOtrSession()) {
 222						String otrResource = conversation.getOtrSession().getSessionID().getUserID();
 223						if (!(Arrays.asList(contact.getPresences().toResourceArray()).contains(otrResource))) {
 224							conversation.endOtrIfNeeded();
 225						}
 226					}
 227				}
 228			}
 229		}
 230	};
 231	private HttpConnectionManager mHttpConnectionManager = new HttpConnectionManager(
 232			this);
 233	private AvatarService mAvatarService = new AvatarService(this);
 234	private MessageArchiveService mMessageArchiveService = new MessageArchiveService(this);
 235	private PushManagementService mPushManagementService = new PushManagementService(this);
 236	private OnConversationUpdate mOnConversationUpdate = null;
 237
 238
 239	private final ConversationsFileObserver fileObserver = new ConversationsFileObserver(
 240			Environment.getExternalStorageDirectory().getAbsolutePath()
 241	) {
 242		@Override
 243		public void onEvent(int event, String path) {
 244			markFileDeleted(path);
 245		}
 246	};
 247	private final OnJinglePacketReceived jingleListener = new OnJinglePacketReceived() {
 248
 249		@Override
 250		public void onJinglePacketReceived(Account account, JinglePacket packet) {
 251			mJingleConnectionManager.deliverPacket(account, packet);
 252		}
 253	};
 254	private final OnMessageAcknowledged mOnMessageAcknowledgedListener = new OnMessageAcknowledged() {
 255
 256		@Override
 257		public void onMessageAcknowledged(Account account, String uuid) {
 258			for (final Conversation conversation : getConversations()) {
 259				if (conversation.getAccount() == account) {
 260					Message message = conversation.findUnsentMessageWithUuid(uuid);
 261					if (message != null) {
 262						markMessage(message, Message.STATUS_SEND);
 263					}
 264				}
 265			}
 266		}
 267	};
 268	private int convChangedListenerCount = 0;
 269	private OnShowErrorToast mOnShowErrorToast = null;
 270	private int showErrorToastListenerCount = 0;
 271	private int unreadCount = -1;
 272	private OnAccountUpdate mOnAccountUpdate = null;
 273	private OnCaptchaRequested mOnCaptchaRequested = null;
 274	private int accountChangedListenerCount = 0;
 275	private int captchaRequestedListenerCount = 0;
 276	private OnRosterUpdate mOnRosterUpdate = null;
 277	private OnUpdateBlocklist mOnUpdateBlocklist = null;
 278	private int updateBlocklistListenerCount = 0;
 279	private int rosterChangedListenerCount = 0;
 280	private OnMucRosterUpdate mOnMucRosterUpdate = null;
 281	private int mucRosterChangedListenerCount = 0;
 282	private OnKeyStatusUpdated mOnKeyStatusUpdated = null;
 283	private int keyStatusUpdatedListenerCount = 0;
 284	private AtomicLong mLastExpiryRun = new AtomicLong(0);
 285	private SecureRandom mRandom;
 286	private LruCache<Pair<String, String>, ServiceDiscoveryResult> discoCache = new LruCache<>(20);
 287	private final OnBindListener mOnBindListener = new OnBindListener() {
 288
 289		@Override
 290		public void onBind(final Account account) {
 291			synchronized (mInProgressAvatarFetches) {
 292				for (Iterator<String> iterator = mInProgressAvatarFetches.iterator(); iterator.hasNext(); ) {
 293					final String KEY = iterator.next();
 294					if (KEY.startsWith(account.getJid().toBareJid() + "_")) {
 295						iterator.remove();
 296					}
 297				}
 298			}
 299			if (account.setOption(Account.OPTION_LOGGED_IN_SUCCESSFULLY, true)) {
 300				databaseBackend.updateAccount(account);
 301			}
 302			account.getRoster().clearPresences();
 303			mJingleConnectionManager.cancelInTransmission();
 304			fetchRosterFromServer(account);
 305			fetchBookmarks(account);
 306			sendPresence(account);
 307			if (mPushManagementService.available(account)) {
 308				mPushManagementService.registerPushTokenOnServer(account);
 309			}
 310			connectMultiModeConversations(account);
 311			syncDirtyContacts(account);
 312		}
 313	};
 314	private OnStatusChanged statusListener = new OnStatusChanged() {
 315
 316		@Override
 317		public void onStatusChanged(final Account account) {
 318			XmppConnection connection = account.getXmppConnection();
 319			if (mOnAccountUpdate != null) {
 320				mOnAccountUpdate.onAccountUpdate();
 321			}
 322			if (account.getStatus() == Account.State.ONLINE) {
 323				synchronized (mLowPingTimeoutMode) {
 324					if (mLowPingTimeoutMode.remove(account.getJid().toBareJid())) {
 325						Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": leaving low ping timeout mode");
 326					}
 327				}
 328				if (account.setShowErrorNotification(true)) {
 329					databaseBackend.updateAccount(account);
 330				}
 331				mMessageArchiveService.executePendingQueries(account);
 332				if (connection != null && connection.getFeatures().csi()) {
 333					if (checkListeners()) {
 334						Log.d(Config.LOGTAG, account.getJid().toBareJid() + " sending csi//inactive");
 335						connection.sendInactive();
 336					} else {
 337						Log.d(Config.LOGTAG, account.getJid().toBareJid() + " sending csi//active");
 338						connection.sendActive();
 339					}
 340				}
 341				List<Conversation> conversations = getConversations();
 342				for (Conversation conversation : conversations) {
 343					if (conversation.getAccount() == account
 344							&& !account.pendingConferenceJoins.contains(conversation)) {
 345						if (!conversation.startOtrIfNeeded()) {
 346							Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": couldn't start OTR with " + conversation.getContact().getJid() + " when needed");
 347						}
 348						sendUnsentMessages(conversation);
 349					}
 350				}
 351				for (Conversation conversation : account.pendingConferenceLeaves) {
 352					leaveMuc(conversation);
 353				}
 354				account.pendingConferenceLeaves.clear();
 355				for (Conversation conversation : account.pendingConferenceJoins) {
 356					joinMuc(conversation);
 357				}
 358				account.pendingConferenceJoins.clear();
 359				scheduleWakeUpCall(Config.PING_MAX_INTERVAL, account.getUuid().hashCode());
 360			} else if (account.getStatus() == Account.State.OFFLINE || account.getStatus() == Account.State.DISABLED) {
 361				resetSendingToWaiting(account);
 362				if (account.isEnabled() && isInLowPingTimeoutMode(account)) {
 363					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": went into offline state during low ping mode. reconnecting now");
 364					reconnectAccount(account, true, false);
 365				} else {
 366					int timeToReconnect = mRandom.nextInt(10) + 2;
 367					scheduleWakeUpCall(timeToReconnect, account.getUuid().hashCode());
 368				}
 369			} else if (account.getStatus() == Account.State.REGISTRATION_SUCCESSFUL) {
 370				databaseBackend.updateAccount(account);
 371				reconnectAccount(account, true, false);
 372			} else if (account.getStatus() != Account.State.CONNECTING && account.getStatus() != Account.State.NO_INTERNET) {
 373				resetSendingToWaiting(account);
 374				if (connection != null && account.getStatus().isAttemptReconnect()) {
 375					final int next = connection.getTimeToNextAttempt();
 376					final boolean lowPingTimeoutMode = isInLowPingTimeoutMode(account);
 377					if (next <= 0) {
 378						Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": error connecting account. reconnecting now. lowPingTimeout=" + Boolean.toString(lowPingTimeoutMode));
 379						reconnectAccount(account, true, false);
 380					} else {
 381						final int attempt = connection.getAttempt() + 1;
 382						Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": error connecting account. try again in " + next + "s for the " + attempt + " time. lowPingTimeout=" + Boolean.toString(lowPingTimeoutMode));
 383						scheduleWakeUpCall(next, account.getUuid().hashCode());
 384					}
 385				}
 386			}
 387			getNotificationService().updateErrorNotification();
 388		}
 389	};
 390
 391	private boolean isInLowPingTimeoutMode(Account account) {
 392		synchronized (mLowPingTimeoutMode) {
 393			return mLowPingTimeoutMode.contains(account.getJid().toBareJid());
 394		}
 395	}
 396
 397	public void startForcingForegroundNotification() {
 398		mForceForegroundService.set(true);
 399		toggleForegroundService();
 400	}
 401
 402	public void stopForcingForegroundNotification() {
 403		mForceForegroundService.set(false);
 404		toggleForegroundService();
 405	}
 406
 407	private OpenPgpServiceConnection pgpServiceConnection;
 408	private PgpEngine mPgpEngine = null;
 409	private WakeLock wakeLock;
 410	private PowerManager pm;
 411	private LruCache<String, Bitmap> mBitmapCache;
 412	private EventReceiver mEventReceiver = new EventReceiver();
 413
 414	private boolean mRestoredFromDatabase = false;
 415
 416	private static String generateFetchKey(Account account, final Avatar avatar) {
 417		return account.getJid().toBareJid() + "_" + avatar.owner + "_" + avatar.sha1sum;
 418	}
 419
 420	public boolean areMessagesInitialized() {
 421		return this.mRestoredFromDatabase;
 422	}
 423
 424	public PgpEngine getPgpEngine() {
 425		if (!Config.supportOpenPgp()) {
 426			return null;
 427		} else if (pgpServiceConnection != null && pgpServiceConnection.isBound()) {
 428			if (this.mPgpEngine == null) {
 429				this.mPgpEngine = new PgpEngine(new OpenPgpApi(
 430						getApplicationContext(),
 431						pgpServiceConnection.getService()), this);
 432			}
 433			return mPgpEngine;
 434		} else {
 435			return null;
 436		}
 437
 438	}
 439
 440	public OpenPgpApi getOpenPgpApi() {
 441		if (!Config.supportOpenPgp()) {
 442			return null;
 443		} else if (pgpServiceConnection != null && pgpServiceConnection.isBound()) {
 444			return new OpenPgpApi(this, pgpServiceConnection.getService());
 445		} else {
 446			return null;
 447		}
 448	}
 449
 450	public FileBackend getFileBackend() {
 451		return this.fileBackend;
 452	}
 453
 454	public AvatarService getAvatarService() {
 455		return this.mAvatarService;
 456	}
 457
 458	public void attachLocationToConversation(final Conversation conversation,
 459	                                         final Uri uri,
 460	                                         final UiCallback<Message> callback) {
 461		int encryption = conversation.getNextEncryption();
 462		if (encryption == Message.ENCRYPTION_PGP) {
 463			encryption = Message.ENCRYPTION_DECRYPTED;
 464		}
 465		Message message = new Message(conversation, uri.toString(), encryption);
 466		if (conversation.getNextCounterpart() != null) {
 467			message.setCounterpart(conversation.getNextCounterpart());
 468		}
 469		if (encryption == Message.ENCRYPTION_DECRYPTED) {
 470			getPgpEngine().encrypt(message, callback);
 471		} else {
 472			callback.success(message);
 473		}
 474	}
 475
 476	public void attachFileToConversation(final Conversation conversation,
 477	                                     final Uri uri,
 478	                                     final UiCallback<Message> callback) {
 479		if (FileBackend.weOwnFile(this, uri)) {
 480			Log.d(Config.LOGTAG, "trying to attach file that belonged to us");
 481			callback.error(R.string.security_error_invalid_file_access, null);
 482			return;
 483		}
 484		final Message message;
 485		if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 486			message = new Message(conversation, "", Message.ENCRYPTION_DECRYPTED);
 487		} else {
 488			message = new Message(conversation, "", conversation.getNextEncryption());
 489		}
 490		message.setCounterpart(conversation.getNextCounterpart());
 491		message.setType(Message.TYPE_FILE);
 492		final AttachFileToConversationRunnable runnable = new AttachFileToConversationRunnable(this, uri, message, callback);
 493		if (runnable.isVideoMessage()) {
 494			mVideoCompressionExecutor.execute(runnable);
 495		} else {
 496			mFileAddingExecutor.execute(runnable);
 497		}
 498	}
 499
 500	public void attachImageToConversation(final Conversation conversation, final Uri uri, final UiCallback<Message> callback) {
 501		if (FileBackend.weOwnFile(this, uri)) {
 502			Log.d(Config.LOGTAG, "trying to attach file that belonged to us");
 503			callback.error(R.string.security_error_invalid_file_access, null);
 504			return;
 505		}
 506
 507		final String mimeType = MimeUtils.guessMimeTypeFromUri(this, uri);
 508		final String compressPictures = getCompressPicturesPreference();
 509
 510		if ("never".equals(compressPictures)
 511				|| ("auto".equals(compressPictures) && getFileBackend().useImageAsIs(uri))
 512				|| (mimeType != null && mimeType.endsWith("/gif"))) {
 513			Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid() + ": not compressing picture. sending as file");
 514			attachFileToConversation(conversation, uri, callback);
 515			return;
 516		}
 517		final Message message;
 518		if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 519			message = new Message(conversation, "", Message.ENCRYPTION_DECRYPTED);
 520		} else {
 521			message = new Message(conversation, "", conversation.getNextEncryption());
 522		}
 523		message.setCounterpart(conversation.getNextCounterpart());
 524		message.setType(Message.TYPE_IMAGE);
 525		mFileAddingExecutor.execute(new Runnable() {
 526
 527			@Override
 528			public void run() {
 529				try {
 530					getFileBackend().copyImageToPrivateStorage(message, uri);
 531					if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 532						final PgpEngine pgpEngine = getPgpEngine();
 533						if (pgpEngine != null) {
 534							pgpEngine.encrypt(message, callback);
 535						} else if (callback != null) {
 536							callback.error(R.string.unable_to_connect_to_keychain, null);
 537						}
 538					} else {
 539						callback.success(message);
 540					}
 541				} catch (final FileBackend.FileCopyException e) {
 542					callback.error(e.getResId(), message);
 543				}
 544			}
 545		});
 546	}
 547
 548	public Conversation find(Bookmark bookmark) {
 549		return find(bookmark.getAccount(), bookmark.getJid());
 550	}
 551
 552	public Conversation find(final Account account, final Jid jid) {
 553		return find(getConversations(), account, jid);
 554	}
 555
 556	@Override
 557	public int onStartCommand(Intent intent, int flags, int startId) {
 558		final String action = intent == null ? null : intent.getAction();
 559		String pushedAccountHash = null;
 560		boolean interactive = false;
 561		if (action != null) {
 562			final String uuid = intent.getStringExtra("uuid");
 563			final Conversation c = findConversationByUuid(uuid);
 564			switch (action) {
 565				case ConnectivityManager.CONNECTIVITY_ACTION:
 566					if (hasInternetConnection() && Config.RESET_ATTEMPT_COUNT_ON_NETWORK_CHANGE) {
 567						resetAllAttemptCounts(true, false);
 568					}
 569					break;
 570				case ACTION_MERGE_PHONE_CONTACTS:
 571					if (mRestoredFromDatabase) {
 572						loadPhoneContacts();
 573					}
 574					return START_STICKY;
 575				case Intent.ACTION_SHUTDOWN:
 576					logoutAndSave(true);
 577					return START_NOT_STICKY;
 578				case ACTION_CLEAR_NOTIFICATION:
 579					if (c != null) {
 580						mNotificationService.clear(c);
 581					} else {
 582						mNotificationService.clear();
 583					}
 584					break;
 585				case ACTION_DISMISS_ERROR_NOTIFICATIONS:
 586					dismissErrorNotifications();
 587					break;
 588				case ACTION_TRY_AGAIN:
 589					resetAllAttemptCounts(false, true);
 590					interactive = true;
 591					break;
 592				case ACTION_REPLY_TO_CONVERSATION:
 593					Bundle remoteInput = RemoteInput.getResultsFromIntent(intent);
 594					if (remoteInput != null && c != null) {
 595						final CharSequence body = remoteInput.getCharSequence("text_reply");
 596						if (body != null && body.length() > 0) {
 597							directReply(c, body.toString(), intent.getBooleanExtra("dismiss_notification", false));
 598						}
 599					}
 600					break;
 601				case ACTION_MARK_AS_READ:
 602					if (c != null) {
 603						sendReadMarker(c);
 604					} else {
 605						Log.d(Config.LOGTAG, "received mark read intent for unknown conversation (" + uuid + ")");
 606					}
 607					break;
 608				case AudioManager.RINGER_MODE_CHANGED_ACTION:
 609					if (dndOnSilentMode()) {
 610						refreshAllPresences();
 611					}
 612					break;
 613				case Intent.ACTION_SCREEN_ON:
 614					deactivateGracePeriod();
 615				case Intent.ACTION_SCREEN_OFF:
 616					if (awayWhenScreenOff()) {
 617						refreshAllPresences();
 618					}
 619					break;
 620				case ACTION_GCM_TOKEN_REFRESH:
 621					refreshAllGcmTokens();
 622					break;
 623				case ACTION_IDLE_PING:
 624					if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 625						scheduleNextIdlePing();
 626					}
 627					break;
 628				case ACTION_GCM_MESSAGE_RECEIVED:
 629					Log.d(Config.LOGTAG, "gcm push message arrived in service. extras=" + intent.getExtras());
 630					pushedAccountHash = intent.getStringExtra("account");
 631					break;
 632			}
 633		}
 634		synchronized (this) {
 635			this.wakeLock.acquire();
 636			boolean pingNow = ConnectivityManager.CONNECTIVITY_ACTION.equals(action);
 637			HashSet<Account> pingCandidates = new HashSet<>();
 638			for (Account account : accounts) {
 639				pingNow |= processAccountState(account,
 640						interactive,
 641						"ui".equals(action),
 642						CryptoHelper.getAccountFingerprint(account).equals(pushedAccountHash),
 643						pingCandidates);
 644			}
 645			if (pingNow) {
 646				for (Account account : pingCandidates) {
 647					final boolean lowTimeout = isInLowPingTimeoutMode(account);
 648					account.getXmppConnection().sendPing();
 649					Log.d(Config.LOGTAG, account.getJid().toBareJid() + " send ping (action=" + action + ",lowTimeout=" + Boolean.toString(lowTimeout) + ")");
 650					scheduleWakeUpCall(lowTimeout ? Config.LOW_PING_TIMEOUT : Config.PING_TIMEOUT, account.getUuid().hashCode());
 651				}
 652			}
 653			if (wakeLock.isHeld()) {
 654				try {
 655					wakeLock.release();
 656				} catch (final RuntimeException ignored) {
 657				}
 658			}
 659		}
 660		if (SystemClock.elapsedRealtime() - mLastExpiryRun.get() >= Config.EXPIRY_INTERVAL) {
 661			expireOldMessages();
 662		}
 663		return START_STICKY;
 664	}
 665
 666	private boolean processAccountState(Account account, boolean interactive, boolean isUiAction, boolean isAccountPushed, HashSet<Account> pingCandidates) {
 667		boolean pingNow = false;
 668		if (account.getStatus().isAttemptReconnect()) {
 669			if (!hasInternetConnection()) {
 670				account.setStatus(Account.State.NO_INTERNET);
 671				if (statusListener != null) {
 672					statusListener.onStatusChanged(account);
 673				}
 674			} else {
 675				if (account.getStatus() == Account.State.NO_INTERNET) {
 676					account.setStatus(Account.State.OFFLINE);
 677					if (statusListener != null) {
 678						statusListener.onStatusChanged(account);
 679					}
 680				}
 681				if (account.getStatus() == Account.State.ONLINE) {
 682					synchronized (mLowPingTimeoutMode) {
 683						long lastReceived = account.getXmppConnection().getLastPacketReceived();
 684						long lastSent = account.getXmppConnection().getLastPingSent();
 685						long pingInterval = isUiAction ? Config.PING_MIN_INTERVAL * 1000 : Config.PING_MAX_INTERVAL * 1000;
 686						long msToNextPing = (Math.max(lastReceived, lastSent) + pingInterval) - SystemClock.elapsedRealtime();
 687						int pingTimeout = mLowPingTimeoutMode.contains(account.getJid().toBareJid()) ? Config.LOW_PING_TIMEOUT * 1000 : Config.PING_TIMEOUT * 1000;
 688						long pingTimeoutIn = (lastSent + pingTimeout) - SystemClock.elapsedRealtime();
 689						if (lastSent > lastReceived) {
 690							if (pingTimeoutIn < 0) {
 691								Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": ping timeout");
 692								this.reconnectAccount(account, true, interactive);
 693							} else {
 694								int secs = (int) (pingTimeoutIn / 1000);
 695								this.scheduleWakeUpCall(secs, account.getUuid().hashCode());
 696							}
 697						} else {
 698							pingCandidates.add(account);
 699							if (isAccountPushed) {
 700								pingNow = true;
 701								if (mLowPingTimeoutMode.add(account.getJid().toBareJid())) {
 702									Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": entering low ping timeout mode");
 703								}
 704							} else if (msToNextPing <= 0) {
 705								pingNow = true;
 706							} else {
 707								this.scheduleWakeUpCall((int) (msToNextPing / 1000), account.getUuid().hashCode());
 708								if (mLowPingTimeoutMode.remove(account.getJid().toBareJid())) {
 709									Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": leaving low ping timeout mode");
 710								}
 711							}
 712						}
 713					}
 714				} else if (account.getStatus() == Account.State.OFFLINE) {
 715					reconnectAccount(account, true, interactive);
 716				} else if (account.getStatus() == Account.State.CONNECTING) {
 717					long secondsSinceLastConnect = (SystemClock.elapsedRealtime() - account.getXmppConnection().getLastConnect()) / 1000;
 718					long secondsSinceLastDisco = (SystemClock.elapsedRealtime() - account.getXmppConnection().getLastDiscoStarted()) / 1000;
 719					long discoTimeout = Config.CONNECT_DISCO_TIMEOUT - secondsSinceLastDisco;
 720					long timeout = Config.CONNECT_TIMEOUT - secondsSinceLastConnect;
 721					if (timeout < 0) {
 722						Log.d(Config.LOGTAG, account.getJid() + ": time out during connect reconnecting (secondsSinceLast=" + secondsSinceLastConnect + ")");
 723						account.getXmppConnection().resetAttemptCount(false);
 724						reconnectAccount(account, true, interactive);
 725					} else if (discoTimeout < 0) {
 726						account.getXmppConnection().sendDiscoTimeout();
 727						scheduleWakeUpCall((int) Math.min(timeout, discoTimeout), account.getUuid().hashCode());
 728					} else {
 729						scheduleWakeUpCall((int) Math.min(timeout, discoTimeout), account.getUuid().hashCode());
 730					}
 731				} else {
 732					if (account.getXmppConnection().getTimeToNextAttempt() <= 0) {
 733						reconnectAccount(account, true, interactive);
 734					}
 735				}
 736			}
 737		}
 738		return pingNow;
 739	}
 740
 741	public boolean isDataSaverDisabled() {
 742		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 743			ConnectivityManager connectivityManager = (ConnectivityManager) getSystemService(CONNECTIVITY_SERVICE);
 744			return !connectivityManager.isActiveNetworkMetered()
 745					|| connectivityManager.getRestrictBackgroundStatus() == ConnectivityManager.RESTRICT_BACKGROUND_STATUS_DISABLED;
 746		} else {
 747			return true;
 748		}
 749	}
 750
 751	private void directReply(Conversation conversation, String body, final boolean dismissAfterReply) {
 752		Message message = new Message(conversation, body, conversation.getNextEncryption());
 753		message.markUnread();
 754		if (message.getEncryption() == Message.ENCRYPTION_PGP) {
 755			getPgpEngine().encrypt(message, new UiCallback<Message>() {
 756				@Override
 757				public void success(Message message) {
 758					message.setEncryption(Message.ENCRYPTION_DECRYPTED);
 759					sendMessage(message);
 760					if (dismissAfterReply) {
 761						markRead(message.getConversation(), true);
 762					} else {
 763						mNotificationService.pushFromDirectReply(message);
 764					}
 765				}
 766
 767				@Override
 768				public void error(int errorCode, Message object) {
 769
 770				}
 771
 772				@Override
 773				public void userInputRequried(PendingIntent pi, Message object) {
 774
 775				}
 776			});
 777		} else {
 778			sendMessage(message);
 779			if (dismissAfterReply) {
 780				markRead(conversation, true);
 781			} else {
 782				mNotificationService.pushFromDirectReply(message);
 783			}
 784		}
 785	}
 786
 787	private boolean dndOnSilentMode() {
 788		return getBooleanPreference(SettingsActivity.DND_ON_SILENT_MODE, R.bool.dnd_on_silent_mode);
 789	}
 790
 791	private boolean manuallyChangePresence() {
 792		return getBooleanPreference(SettingsActivity.MANUALLY_CHANGE_PRESENCE, R.bool.manually_change_presence);
 793	}
 794
 795	private boolean treatVibrateAsSilent() {
 796		return getBooleanPreference(SettingsActivity.TREAT_VIBRATE_AS_SILENT, R.bool.treat_vibrate_as_silent);
 797	}
 798
 799	private boolean awayWhenScreenOff() {
 800		return getBooleanPreference(SettingsActivity.AWAY_WHEN_SCREEN_IS_OFF, R.bool.away_when_screen_off);
 801	}
 802
 803	private String getCompressPicturesPreference() {
 804		return getPreferences().getString("picture_compression", getResources().getString(R.string.picture_compression));
 805	}
 806
 807	private Presence.Status getTargetPresence() {
 808		if (dndOnSilentMode() && isPhoneSilenced()) {
 809			return Presence.Status.DND;
 810		} else if (awayWhenScreenOff() && !isInteractive()) {
 811			return Presence.Status.AWAY;
 812		} else {
 813			return Presence.Status.ONLINE;
 814		}
 815	}
 816
 817	@SuppressLint("NewApi")
 818	@SuppressWarnings("deprecation")
 819	public boolean isInteractive() {
 820		final PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 821
 822		final boolean isScreenOn;
 823		if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
 824			isScreenOn = pm.isScreenOn();
 825		} else {
 826			isScreenOn = pm.isInteractive();
 827		}
 828		return isScreenOn;
 829	}
 830
 831	private boolean isPhoneSilenced() {
 832		AudioManager audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
 833		try {
 834			if (treatVibrateAsSilent()) {
 835				return audioManager.getRingerMode() != AudioManager.RINGER_MODE_NORMAL;
 836			} else {
 837				return audioManager.getRingerMode() == AudioManager.RINGER_MODE_SILENT;
 838			}
 839		} catch (Throwable throwable) {
 840			Log.d(Config.LOGTAG, "platform bug in isPhoneSilenced (" + throwable.getMessage() + ")");
 841			return false;
 842		}
 843	}
 844
 845	private void resetAllAttemptCounts(boolean reallyAll, boolean retryImmediately) {
 846		Log.d(Config.LOGTAG, "resetting all attempt counts");
 847		for (Account account : accounts) {
 848			if (account.hasErrorStatus() || reallyAll) {
 849				final XmppConnection connection = account.getXmppConnection();
 850				if (connection != null) {
 851					connection.resetAttemptCount(retryImmediately);
 852				}
 853			}
 854			if (account.setShowErrorNotification(true)) {
 855				databaseBackend.updateAccount(account);
 856			}
 857		}
 858		mNotificationService.updateErrorNotification();
 859	}
 860
 861	private void dismissErrorNotifications() {
 862		for (final Account account : this.accounts) {
 863			if (account.hasErrorStatus()) {
 864				Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": dismissing error notification");
 865				if (account.setShowErrorNotification(false)) {
 866					databaseBackend.updateAccount(account);
 867				}
 868			}
 869		}
 870	}
 871
 872	private void expireOldMessages() {
 873		expireOldMessages(false);
 874	}
 875
 876	public void expireOldMessages(final boolean resetHasMessagesLeftOnServer) {
 877		mLastExpiryRun.set(SystemClock.elapsedRealtime());
 878		mDatabaseWriterExecutor.execute(new Runnable() {
 879			@Override
 880			public void run() {
 881				long timestamp = getAutomaticMessageDeletionDate();
 882				if (timestamp > 0) {
 883					databaseBackend.expireOldMessages(timestamp);
 884					synchronized (XmppConnectionService.this.conversations) {
 885						for (Conversation conversation : XmppConnectionService.this.conversations) {
 886							conversation.expireOldMessages(timestamp);
 887							if (resetHasMessagesLeftOnServer) {
 888								conversation.messagesLoaded.set(true);
 889								conversation.setHasMessagesLeftOnServer(true);
 890							}
 891						}
 892					}
 893					updateConversationUi();
 894				}
 895			}
 896		});
 897	}
 898
 899	public boolean hasInternetConnection() {
 900		final ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
 901		try {
 902			final NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
 903			return activeNetwork != null && activeNetwork.isConnected();
 904		} catch (RuntimeException e) {
 905			Log.d(Config.LOGTAG,"unable to check for internet connection",e);
 906			return true; //if internet connection can not be checked it is probably best to just try
 907		}
 908	}
 909
 910	@SuppressLint("TrulyRandom")
 911	@Override
 912	public void onCreate() {
 913		ExceptionHelper.init(getApplicationContext());
 914		PRNGFixes.apply();
 915		Resolver.init(this);
 916		this.mRandom = new SecureRandom();
 917		updateMemorizingTrustmanager();
 918		final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024);
 919		final int cacheSize = maxMemory / 8;
 920		this.mBitmapCache = new LruCache<String, Bitmap>(cacheSize) {
 921			@Override
 922			protected int sizeOf(final String key, final Bitmap bitmap) {
 923				return bitmap.getByteCount() / 1024;
 924			}
 925		};
 926
 927		Log.d(Config.LOGTAG, "initializing database...");
 928		this.databaseBackend = DatabaseBackend.getInstance(getApplicationContext());
 929		Log.d(Config.LOGTAG, "restoring accounts...");
 930		this.accounts = databaseBackend.getAccounts();
 931		final SharedPreferences.Editor editor = getPreferences().edit();
 932		if (this.accounts.size() == 0 && Arrays.asList("Sony", "Sony Ericsson").contains(Build.MANUFACTURER)) {
 933			editor.putBoolean(SettingsActivity.KEEP_FOREGROUND_SERVICE, true);
 934			Log.d(Config.LOGTAG, Build.MANUFACTURER + " is on blacklist. enabling foreground service");
 935		}
 936		editor.putBoolean(EventReceiver.SETTING_ENABLED_ACCOUNTS, hasEnabledAccounts()).apply();
 937		editor.apply();
 938
 939		restoreFromDatabase();
 940
 941		getContentResolver().registerContentObserver(ContactsContract.Contacts.CONTENT_URI, true, contactObserver);
 942		new Thread(new Runnable() {
 943			@Override
 944			public void run() {
 945				fileObserver.startWatching();
 946			}
 947		}).start();
 948		if (Config.supportOpenPgp()) {
 949			this.pgpServiceConnection = new OpenPgpServiceConnection(this, "org.sufficientlysecure.keychain", new OpenPgpServiceConnection.OnBound() {
 950				@Override
 951				public void onBound(IOpenPgpService2 service) {
 952					for (Account account : accounts) {
 953						final PgpDecryptionService pgp = account.getPgpDecryptionService();
 954						if (pgp != null) {
 955							pgp.continueDecryption(true);
 956						}
 957					}
 958				}
 959
 960				@Override
 961				public void onError(Exception e) {
 962				}
 963			});
 964			this.pgpServiceConnection.bindToService();
 965		}
 966
 967		this.pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 968		this.wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "XmppConnectionService");
 969
 970		toggleForegroundService();
 971		updateUnreadCountBadge();
 972		toggleScreenEventReceiver();
 973		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 974			scheduleNextIdlePing();
 975		}
 976		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 977			registerReceiver(this.mEventReceiver, new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION));
 978		}
 979	}
 980
 981	@Override
 982	public void onTrimMemory(int level) {
 983		super.onTrimMemory(level);
 984		if (level >= TRIM_MEMORY_COMPLETE) {
 985			Log.d(Config.LOGTAG, "clear cache due to low memory");
 986			getBitmapCache().evictAll();
 987		}
 988	}
 989
 990	@Override
 991	public void onDestroy() {
 992		try {
 993			unregisterReceiver(this.mEventReceiver);
 994		} catch (IllegalArgumentException e) {
 995			//ignored
 996		}
 997		fileObserver.stopWatching();
 998		super.onDestroy();
 999	}
1000
1001	public void toggleScreenEventReceiver() {
1002		if (awayWhenScreenOff() && !manuallyChangePresence()) {
1003			final IntentFilter filter = new IntentFilter(Intent.ACTION_SCREEN_ON);
1004			filter.addAction(Intent.ACTION_SCREEN_OFF);
1005			registerReceiver(this.mEventReceiver, filter);
1006		} else {
1007			try {
1008				unregisterReceiver(this.mEventReceiver);
1009			} catch (IllegalArgumentException e) {
1010				//ignored
1011			}
1012		}
1013	}
1014
1015	public void toggleForegroundService() {
1016		if (mForceForegroundService.get() || (keepForegroundService() && hasEnabledAccounts())) {
1017			startForeground(NotificationService.FOREGROUND_NOTIFICATION_ID, this.mNotificationService.createForegroundNotification());
1018			Log.d(Config.LOGTAG, "started foreground service");
1019		} else {
1020			stopForeground(true);
1021			Log.d(Config.LOGTAG, "stopped foreground service");
1022		}
1023	}
1024
1025	public boolean keepForegroundService() {
1026		return getBooleanPreference(SettingsActivity.KEEP_FOREGROUND_SERVICE, R.bool.enable_foreground_service);
1027	}
1028
1029	@Override
1030	public void onTaskRemoved(final Intent rootIntent) {
1031		super.onTaskRemoved(rootIntent);
1032		if (keepForegroundService() || mForceForegroundService.get()) {
1033			Log.d(Config.LOGTAG, "ignoring onTaskRemoved because foreground service is activated");
1034		} else {
1035			this.logoutAndSave(false);
1036		}
1037	}
1038
1039	private void logoutAndSave(boolean stop) {
1040		int activeAccounts = 0;
1041		for (final Account account : accounts) {
1042			if (account.getStatus() != Account.State.DISABLED) {
1043				activeAccounts++;
1044			}
1045			databaseBackend.writeRoster(account.getRoster());
1046			if (account.getXmppConnection() != null) {
1047				new Thread(new Runnable() {
1048					@Override
1049					public void run() {
1050						disconnect(account, false);
1051					}
1052				}).start();
1053			}
1054		}
1055		if (stop || activeAccounts == 0) {
1056			Log.d(Config.LOGTAG, "good bye");
1057			stopSelf();
1058		}
1059	}
1060
1061	public void scheduleWakeUpCall(int seconds, int requestCode) {
1062		final long timeToWake = SystemClock.elapsedRealtime() + (seconds < 0 ? 1 : seconds + 1) * 1000;
1063		final AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
1064		Intent intent = new Intent(this, EventReceiver.class);
1065		intent.setAction("ping");
1066		PendingIntent pendingIntent = PendingIntent.getBroadcast(this, requestCode, intent, 0);
1067		try {
1068			alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake, pendingIntent);
1069		} catch (RuntimeException e) {
1070			Log.e(Config.LOGTAG, "unable to schedule alarm for ping", e);
1071		}
1072	}
1073
1074	@TargetApi(Build.VERSION_CODES.M)
1075	private void scheduleNextIdlePing() {
1076		final long timeToWake = SystemClock.elapsedRealtime() + (Config.IDLE_PING_INTERVAL * 1000);
1077		final AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
1078		Intent intent = new Intent(this, EventReceiver.class);
1079		intent.setAction(ACTION_IDLE_PING);
1080		PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, intent, 0);
1081		try {
1082			alarmManager.setAndAllowWhileIdle(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake, pendingIntent);
1083		} catch (RuntimeException e) {
1084			Log.d(Config.LOGTAG, "unable to schedule alarm for idle ping", e);
1085		}
1086	}
1087
1088	public XmppConnection createConnection(final Account account) {
1089		final SharedPreferences sharedPref = getPreferences();
1090		String resource;
1091		try {
1092			resource = sharedPref.getString("resource", getString(R.string.default_resource)).toLowerCase(Locale.ENGLISH);
1093			if (resource.trim().isEmpty()) {
1094				throw new Exception();
1095			}
1096		} catch (Exception e) {
1097			resource = "conversations";
1098		}
1099		account.setResource(resource);
1100		final XmppConnection connection = new XmppConnection(account, this);
1101		connection.setOnMessagePacketReceivedListener(this.mMessageParser);
1102		connection.setOnStatusChangedListener(this.statusListener);
1103		connection.setOnPresencePacketReceivedListener(this.mPresenceParser);
1104		connection.setOnUnregisteredIqPacketReceivedListener(this.mIqParser);
1105		connection.setOnJinglePacketReceivedListener(this.jingleListener);
1106		connection.setOnBindListener(this.mOnBindListener);
1107		connection.setOnMessageAcknowledgeListener(this.mOnMessageAcknowledgedListener);
1108		connection.addOnAdvancedStreamFeaturesAvailableListener(this.mMessageArchiveService);
1109		connection.addOnAdvancedStreamFeaturesAvailableListener(this.mAvatarService);
1110		AxolotlService axolotlService = account.getAxolotlService();
1111		if (axolotlService != null) {
1112			connection.addOnAdvancedStreamFeaturesAvailableListener(axolotlService);
1113		}
1114		return connection;
1115	}
1116
1117	public void sendChatState(Conversation conversation) {
1118		if (sendChatStates()) {
1119			MessagePacket packet = mMessageGenerator.generateChatState(conversation);
1120			sendMessagePacket(conversation.getAccount(), packet);
1121		}
1122	}
1123
1124	private void sendFileMessage(final Message message, final boolean delay) {
1125		Log.d(Config.LOGTAG, "send file message");
1126		final Account account = message.getConversation().getAccount();
1127		if (account.httpUploadAvailable(fileBackend.getFile(message, false).getSize())
1128				|| message.getConversation().getMode() == Conversation.MODE_MULTI) {
1129			mHttpConnectionManager.createNewUploadConnection(message, delay);
1130		} else {
1131			mJingleConnectionManager.createNewConnection(message);
1132		}
1133	}
1134
1135	public void sendMessage(final Message message) {
1136		sendMessage(message, false, false);
1137	}
1138
1139	private void sendMessage(final Message message, final boolean resend, final boolean delay) {
1140		final Account account = message.getConversation().getAccount();
1141		if (account.setShowErrorNotification(true)) {
1142			databaseBackend.updateAccount(account);
1143			mNotificationService.updateErrorNotification();
1144		}
1145		final Conversation conversation = message.getConversation();
1146		account.deactivateGracePeriod();
1147		MessagePacket packet = null;
1148		final boolean addToConversation = (conversation.getMode() != Conversation.MODE_MULTI
1149				|| !Patches.BAD_MUC_REFLECTION.contains(account.getServerIdentity()))
1150				&& !message.edited();
1151		boolean saveInDb = addToConversation;
1152		message.setStatus(Message.STATUS_WAITING);
1153
1154		if (!resend && message.getEncryption() != Message.ENCRYPTION_OTR) {
1155			message.getConversation().endOtrIfNeeded();
1156			message.getConversation().findUnsentMessagesWithEncryption(Message.ENCRYPTION_OTR,
1157					new Conversation.OnMessageFound() {
1158						@Override
1159						public void onMessageFound(Message message) {
1160							markMessage(message, Message.STATUS_SEND_FAILED);
1161						}
1162					});
1163		}
1164
1165		if (account.isOnlineAndConnected()) {
1166			switch (message.getEncryption()) {
1167				case Message.ENCRYPTION_NONE:
1168					if (message.needsUploading()) {
1169						if (account.httpUploadAvailable(fileBackend.getFile(message, false).getSize())
1170								|| conversation.getMode() == Conversation.MODE_MULTI
1171								|| message.fixCounterpart()) {
1172							this.sendFileMessage(message, delay);
1173						} else {
1174							break;
1175						}
1176					} else {
1177						packet = mMessageGenerator.generateChat(message);
1178					}
1179					break;
1180				case Message.ENCRYPTION_PGP:
1181				case Message.ENCRYPTION_DECRYPTED:
1182					if (message.needsUploading()) {
1183						if (account.httpUploadAvailable(fileBackend.getFile(message, false).getSize())
1184								|| conversation.getMode() == Conversation.MODE_MULTI
1185								|| message.fixCounterpart()) {
1186							this.sendFileMessage(message, delay);
1187						} else {
1188							break;
1189						}
1190					} else {
1191						packet = mMessageGenerator.generatePgpChat(message);
1192					}
1193					break;
1194				case Message.ENCRYPTION_OTR:
1195					SessionImpl otrSession = conversation.getOtrSession();
1196					if (otrSession != null && otrSession.getSessionStatus() == SessionStatus.ENCRYPTED) {
1197						try {
1198							message.setCounterpart(Jid.fromSessionID(otrSession.getSessionID()));
1199						} catch (InvalidJidException e) {
1200							break;
1201						}
1202						if (message.needsUploading()) {
1203							mJingleConnectionManager.createNewConnection(message);
1204						} else {
1205							packet = mMessageGenerator.generateOtrChat(message);
1206						}
1207					} else if (otrSession == null) {
1208						if (message.fixCounterpart()) {
1209							conversation.startOtrSession(message.getCounterpart().getResourcepart(), true);
1210						} else {
1211							Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": could not fix counterpart for OTR message to contact " + message.getCounterpart());
1212							break;
1213						}
1214					} else {
1215						Log.d(Config.LOGTAG, account.getJid().toBareJid() + " OTR session with " + message.getContact() + " is in wrong state: " + otrSession.getSessionStatus().toString());
1216					}
1217					break;
1218				case Message.ENCRYPTION_AXOLOTL:
1219					message.setFingerprint(account.getAxolotlService().getOwnFingerprint());
1220					if (message.needsUploading()) {
1221						if (account.httpUploadAvailable(fileBackend.getFile(message, false).getSize())
1222								|| conversation.getMode() == Conversation.MODE_MULTI
1223								|| message.fixCounterpart()) {
1224							this.sendFileMessage(message, delay);
1225						} else {
1226							break;
1227						}
1228					} else {
1229						XmppAxolotlMessage axolotlMessage = account.getAxolotlService().fetchAxolotlMessageFromCache(message);
1230						if (axolotlMessage == null) {
1231							account.getAxolotlService().preparePayloadMessage(message, delay);
1232						} else {
1233							packet = mMessageGenerator.generateAxolotlChat(message, axolotlMessage);
1234						}
1235					}
1236					break;
1237
1238			}
1239			if (packet != null) {
1240				if (account.getXmppConnection().getFeatures().sm()
1241						|| (conversation.getMode() == Conversation.MODE_MULTI && message.getCounterpart().isBareJid())) {
1242					message.setStatus(Message.STATUS_UNSEND);
1243				} else {
1244					message.setStatus(Message.STATUS_SEND);
1245				}
1246			}
1247		} else {
1248			switch (message.getEncryption()) {
1249				case Message.ENCRYPTION_DECRYPTED:
1250					if (!message.needsUploading()) {
1251						String pgpBody = message.getEncryptedBody();
1252						String decryptedBody = message.getBody();
1253						message.setBody(pgpBody); //TODO might throw NPE
1254						message.setEncryption(Message.ENCRYPTION_PGP);
1255						if (message.edited()) {
1256							message.setBody(decryptedBody);
1257							message.setEncryption(Message.ENCRYPTION_DECRYPTED);
1258							databaseBackend.updateMessage(message, message.getEditedId());
1259							updateConversationUi();
1260							return;
1261						} else {
1262							databaseBackend.createMessage(message);
1263							saveInDb = false;
1264							message.setBody(decryptedBody);
1265							message.setEncryption(Message.ENCRYPTION_DECRYPTED);
1266						}
1267					}
1268					break;
1269				case Message.ENCRYPTION_OTR:
1270					if (!conversation.hasValidOtrSession() && message.getCounterpart() != null) {
1271						Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": create otr session without starting for " + message.getContact().getJid());
1272						conversation.startOtrSession(message.getCounterpart().getResourcepart(), false);
1273					}
1274					break;
1275				case Message.ENCRYPTION_AXOLOTL:
1276					message.setFingerprint(account.getAxolotlService().getOwnFingerprint());
1277					break;
1278			}
1279		}
1280
1281
1282		boolean mucMessage = conversation.getMode() == Conversation.MODE_MULTI && message.getType() != Message.TYPE_PRIVATE;
1283		if (mucMessage) {
1284			message.setCounterpart(conversation.getMucOptions().getSelf().getFullJid());
1285		}
1286
1287		if (resend) {
1288			if (packet != null && addToConversation) {
1289				if (account.getXmppConnection().getFeatures().sm() || mucMessage) {
1290					markMessage(message, Message.STATUS_UNSEND);
1291				} else {
1292					markMessage(message, Message.STATUS_SEND);
1293				}
1294			}
1295		} else {
1296			if (addToConversation) {
1297				conversation.add(message);
1298			}
1299			if (saveInDb) {
1300				databaseBackend.createMessage(message);
1301			} else if (message.edited()) {
1302				databaseBackend.updateMessage(message, message.getEditedId());
1303			}
1304			updateConversationUi();
1305		}
1306		if (packet != null) {
1307			if (delay) {
1308				mMessageGenerator.addDelay(packet, message.getTimeSent());
1309			}
1310			if (conversation.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
1311				if (this.sendChatStates()) {
1312					packet.addChild(ChatState.toElement(conversation.getOutgoingChatState()));
1313				}
1314			}
1315			sendMessagePacket(account, packet);
1316		}
1317	}
1318
1319	private void sendUnsentMessages(final Conversation conversation) {
1320		conversation.findWaitingMessages(new Conversation.OnMessageFound() {
1321
1322			@Override
1323			public void onMessageFound(Message message) {
1324				resendMessage(message, true);
1325			}
1326		});
1327	}
1328
1329	public void resendMessage(final Message message, final boolean delay) {
1330		sendMessage(message, true, delay);
1331	}
1332
1333	public void fetchRosterFromServer(final Account account) {
1334		final IqPacket iqPacket = new IqPacket(IqPacket.TYPE.GET);
1335		if (!"".equals(account.getRosterVersion())) {
1336			Log.d(Config.LOGTAG, account.getJid().toBareJid()
1337					+ ": fetching roster version " + account.getRosterVersion());
1338		} else {
1339			Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": fetching roster");
1340		}
1341		iqPacket.query(Namespace.ROSTER).setAttribute("ver", account.getRosterVersion());
1342		sendIqPacket(account, iqPacket, mIqParser);
1343	}
1344
1345	public void fetchBookmarks(final Account account) {
1346		final IqPacket iqPacket = new IqPacket(IqPacket.TYPE.GET);
1347		final Element query = iqPacket.query("jabber:iq:private");
1348		query.addChild("storage", "storage:bookmarks");
1349		final OnIqPacketReceived callback = new OnIqPacketReceived() {
1350
1351			@Override
1352			public void onIqPacketReceived(final Account account, final IqPacket packet) {
1353				if (packet.getType() == IqPacket.TYPE.RESULT) {
1354					final Element query = packet.query();
1355					final HashMap<Jid, Bookmark> bookmarks = new HashMap<>();
1356					final Element storage = query.findChild("storage", "storage:bookmarks");
1357					final boolean autojoin = respectAutojoin();
1358					if (storage != null) {
1359						for (final Element item : storage.getChildren()) {
1360							if (item.getName().equals("conference")) {
1361								final Bookmark bookmark = Bookmark.parse(item, account);
1362								Bookmark old = bookmarks.put(bookmark.getJid(), bookmark);
1363								if (old != null && old.getBookmarkName() != null && bookmark.getBookmarkName() == null) {
1364									bookmark.setBookmarkName(old.getBookmarkName());
1365								}
1366								Conversation conversation = find(bookmark);
1367								if (conversation != null) {
1368									conversation.setBookmark(bookmark);
1369								} else if (bookmark.autojoin() && bookmark.getJid() != null && autojoin) {
1370									conversation = findOrCreateConversation(account, bookmark.getJid(), true, true, false);
1371									conversation.setBookmark(bookmark);
1372								}
1373							}
1374						}
1375					}
1376					account.setBookmarks(new ArrayList<>(bookmarks.values()));
1377				} else {
1378					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": could not fetch bookmarks");
1379				}
1380			}
1381		};
1382		sendIqPacket(account, iqPacket, callback);
1383	}
1384
1385	public void pushBookmarks(Account account) {
1386		Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": pushing bookmarks");
1387		IqPacket iqPacket = new IqPacket(IqPacket.TYPE.SET);
1388		Element query = iqPacket.query("jabber:iq:private");
1389		Element storage = query.addChild("storage", "storage:bookmarks");
1390		for (Bookmark bookmark : account.getBookmarks()) {
1391			storage.addChild(bookmark);
1392		}
1393		sendIqPacket(account, iqPacket, mDefaultIqHandler);
1394	}
1395
1396	private void restoreFromDatabase() {
1397		synchronized (this.conversations) {
1398			final Map<String, Account> accountLookupTable = new Hashtable<>();
1399			for (Account account : this.accounts) {
1400				accountLookupTable.put(account.getUuid(), account);
1401			}
1402			Log.d(Config.LOGTAG, "restoring conversations...");
1403			final long startTimeConversationsRestore = SystemClock.elapsedRealtime();
1404			this.conversations.addAll(databaseBackend.getConversations(Conversation.STATUS_AVAILABLE));
1405			for (Iterator<Conversation> iterator = conversations.listIterator(); iterator.hasNext(); ) {
1406				Conversation conversation = iterator.next();
1407				Account account = accountLookupTable.get(conversation.getAccountUuid());
1408				if (account != null) {
1409					conversation.setAccount(account);
1410				} else {
1411					Log.e(Config.LOGTAG, "unable to restore Conversations with " + conversation.getJid());
1412					iterator.remove();
1413				}
1414			}
1415			long diffConversationsRestore = SystemClock.elapsedRealtime() - startTimeConversationsRestore;
1416			Log.d(Config.LOGTAG, "finished restoring conversations in " + diffConversationsRestore + "ms");
1417			Runnable runnable = new Runnable() {
1418				@Override
1419				public void run() {
1420					long deletionDate = getAutomaticMessageDeletionDate();
1421					mLastExpiryRun.set(SystemClock.elapsedRealtime());
1422					if (deletionDate > 0) {
1423						Log.d(Config.LOGTAG, "deleting messages that are older than " + AbstractGenerator.getTimestamp(deletionDate));
1424						databaseBackend.expireOldMessages(deletionDate);
1425					}
1426					Log.d(Config.LOGTAG, "restoring roster...");
1427					for (Account account : accounts) {
1428						databaseBackend.readRoster(account.getRoster());
1429						account.initAccountServices(XmppConnectionService.this); //roster needs to be loaded at this stage
1430					}
1431					getBitmapCache().evictAll();
1432					loadPhoneContacts();
1433					Log.d(Config.LOGTAG, "restoring messages...");
1434					final long startMessageRestore = SystemClock.elapsedRealtime();
1435					for (Conversation conversation : conversations) {
1436						conversation.addAll(0, databaseBackend.getMessages(conversation, Config.PAGE_SIZE));
1437						checkDeletedFiles(conversation);
1438						conversation.findUnsentTextMessages(new Conversation.OnMessageFound() {
1439
1440							@Override
1441							public void onMessageFound(Message message) {
1442								markMessage(message, Message.STATUS_WAITING);
1443							}
1444						});
1445						conversation.findUnreadMessages(new Conversation.OnMessageFound() {
1446							@Override
1447							public void onMessageFound(Message message) {
1448								mNotificationService.pushFromBacklog(message);
1449							}
1450						});
1451					}
1452					mNotificationService.finishBacklog(false);
1453					mRestoredFromDatabase = true;
1454					final long diffMessageRestore = SystemClock.elapsedRealtime() - startMessageRestore;
1455					Log.d(Config.LOGTAG, "finished restoring messages in " + diffMessageRestore + "ms");
1456					updateConversationUi();
1457				}
1458			};
1459			mDatabaseReaderExecutor.execute(runnable); //will contain one write command (expiry) but that's fine
1460		}
1461	}
1462
1463	public void loadPhoneContacts() {
1464		mContactMergerExecutor.execute(new Runnable() {
1465			@Override
1466			public void run() {
1467				PhoneHelper.loadPhoneContacts(XmppConnectionService.this, new OnPhoneContactsLoadedListener() {
1468					@Override
1469					public void onPhoneContactsLoaded(List<Bundle> phoneContacts) {
1470						Log.d(Config.LOGTAG, "start merging phone contacts with roster");
1471						for (Account account : accounts) {
1472							List<Contact> withSystemAccounts = account.getRoster().getWithSystemAccounts();
1473							for (Bundle phoneContact : phoneContacts) {
1474								Jid jid;
1475								try {
1476									jid = Jid.fromString(phoneContact.getString("jid"));
1477								} catch (final InvalidJidException e) {
1478									continue;
1479								}
1480								final Contact contact = account.getRoster().getContact(jid);
1481								String systemAccount = phoneContact.getInt("phoneid")
1482										+ "#"
1483										+ phoneContact.getString("lookup");
1484								contact.setSystemAccount(systemAccount);
1485								boolean needsCacheClean = contact.setPhotoUri(phoneContact.getString("photouri"));
1486								needsCacheClean |= contact.setSystemName(phoneContact.getString("displayname"));
1487								if (needsCacheClean) {
1488									getAvatarService().clear(contact);
1489								}
1490								withSystemAccounts.remove(contact);
1491							}
1492							for (Contact contact : withSystemAccounts) {
1493								contact.setSystemAccount(null);
1494								boolean needsCacheClean = contact.setPhotoUri(null);
1495								needsCacheClean |= contact.setSystemName(null);
1496								if (needsCacheClean) {
1497									getAvatarService().clear(contact);
1498								}
1499							}
1500						}
1501						Log.d(Config.LOGTAG, "finished merging phone contacts");
1502						mShortcutService.refresh(mInitialAddressbookSyncCompleted.compareAndSet(false, true));
1503						updateAccountUi();
1504					}
1505				});
1506			}
1507		});
1508	}
1509
1510	public List<Conversation> getConversations() {
1511		return this.conversations;
1512	}
1513
1514	private void checkDeletedFiles(Conversation conversation) {
1515		conversation.findMessagesWithFiles(new Conversation.OnMessageFound() {
1516
1517			@Override
1518			public void onMessageFound(Message message) {
1519				if (!getFileBackend().isFileAvailable(message)) {
1520					message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
1521					final int s = message.getStatus();
1522					if (s == Message.STATUS_WAITING || s == Message.STATUS_OFFERED || s == Message.STATUS_UNSEND) {
1523						markMessage(message, Message.STATUS_SEND_FAILED);
1524					}
1525				}
1526			}
1527		});
1528	}
1529
1530	private void markFileDeleted(final String path) {
1531		Log.d(Config.LOGTAG, "deleted file " + path);
1532		for (Conversation conversation : getConversations()) {
1533			conversation.findMessagesWithFiles(new Conversation.OnMessageFound() {
1534				@Override
1535				public void onMessageFound(Message message) {
1536					DownloadableFile file = fileBackend.getFile(message);
1537					if (file.getAbsolutePath().equals(path)) {
1538						if (!file.exists()) {
1539							message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
1540							final int s = message.getStatus();
1541							if (s == Message.STATUS_WAITING || s == Message.STATUS_OFFERED || s == Message.STATUS_UNSEND) {
1542								markMessage(message, Message.STATUS_SEND_FAILED);
1543							} else {
1544								updateConversationUi();
1545							}
1546						} else {
1547							Log.d(Config.LOGTAG, "found matching message for file " + path + " but file still exists");
1548						}
1549					}
1550				}
1551			});
1552		}
1553	}
1554
1555	public void populateWithOrderedConversations(final List<Conversation> list) {
1556		populateWithOrderedConversations(list, true);
1557	}
1558
1559	public void populateWithOrderedConversations(final List<Conversation> list, boolean includeNoFileUpload) {
1560		list.clear();
1561		if (includeNoFileUpload) {
1562			list.addAll(getConversations());
1563		} else {
1564			for (Conversation conversation : getConversations()) {
1565				if (conversation.getMode() == Conversation.MODE_SINGLE
1566						|| conversation.getAccount().httpUploadAvailable()) {
1567					list.add(conversation);
1568				}
1569			}
1570		}
1571		try {
1572			Collections.sort(list);
1573		} catch (IllegalArgumentException e) {
1574			//ignore
1575		}
1576	}
1577
1578	public void loadMoreMessages(final Conversation conversation, final long timestamp, final OnMoreMessagesLoaded callback) {
1579		if (XmppConnectionService.this.getMessageArchiveService().queryInProgress(conversation, callback)) {
1580			return;
1581		} else if (timestamp == 0) {
1582			return;
1583		}
1584		Log.d(Config.LOGTAG, "load more messages for " + conversation.getName() + " prior to " + MessageGenerator.getTimestamp(timestamp));
1585		Runnable runnable = new Runnable() {
1586			@Override
1587			public void run() {
1588				final Account account = conversation.getAccount();
1589				List<Message> messages = databaseBackend.getMessages(conversation, 50, timestamp);
1590				if (messages.size() > 0) {
1591					conversation.addAll(0, messages);
1592					checkDeletedFiles(conversation);
1593					callback.onMoreMessagesLoaded(messages.size(), conversation);
1594				} else if (conversation.hasMessagesLeftOnServer()
1595						&& account.isOnlineAndConnected()
1596						&& conversation.getLastClearHistory().getTimestamp() == 0) {
1597					if ((conversation.getMode() == Conversation.MODE_SINGLE && account.getXmppConnection().getFeatures().mam())
1598							|| (conversation.getMode() == Conversation.MODE_MULTI && conversation.getMucOptions().mamSupport())) {
1599						MessageArchiveService.Query query = getMessageArchiveService().query(conversation, new MamReference(0), timestamp, false);
1600						if (query != null) {
1601							query.setCallback(callback);
1602							callback.informUser(R.string.fetching_history_from_server);
1603						} else {
1604							callback.informUser(R.string.not_fetching_history_retention_period);
1605						}
1606
1607					}
1608				}
1609			}
1610		};
1611		mDatabaseReaderExecutor.execute(runnable);
1612	}
1613
1614	public List<Account> getAccounts() {
1615		return this.accounts;
1616	}
1617
1618	public List<Conversation> findAllConferencesWith(Contact contact) {
1619		ArrayList<Conversation> results = new ArrayList<>();
1620		for (Conversation conversation : conversations) {
1621			if (conversation.getMode() == Conversation.MODE_MULTI
1622					&& conversation.getMucOptions().isContactInRoom(contact)) {
1623				results.add(conversation);
1624			}
1625		}
1626		return results;
1627	}
1628
1629	public Conversation find(final Iterable<Conversation> haystack, final Contact contact) {
1630		for (final Conversation conversation : haystack) {
1631			if (conversation.getContact() == contact) {
1632				return conversation;
1633			}
1634		}
1635		return null;
1636	}
1637
1638	public Conversation find(final Iterable<Conversation> haystack, final Account account, final Jid jid) {
1639		if (jid == null) {
1640			return null;
1641		}
1642		for (final Conversation conversation : haystack) {
1643			if ((account == null || conversation.getAccount() == account)
1644					&& (conversation.getJid().toBareJid().equals(jid.toBareJid()))) {
1645				return conversation;
1646			}
1647		}
1648		return null;
1649	}
1650
1651	public Conversation findOrCreateConversation(Account account, Jid jid, boolean muc, final boolean async) {
1652		return this.findOrCreateConversation(account, jid, muc, false, async);
1653	}
1654
1655	public Conversation findOrCreateConversation(final Account account, final Jid jid, final boolean muc, final boolean joinAfterCreate, final boolean async) {
1656		return this.findOrCreateConversation(account, jid, muc, joinAfterCreate, null, async);
1657	}
1658
1659	public Conversation findOrCreateConversation(final Account account, final Jid jid, final boolean muc, final boolean joinAfterCreate, final MessageArchiveService.Query query, final boolean async) {
1660		synchronized (this.conversations) {
1661			Conversation conversation = find(account, jid);
1662			if (conversation != null) {
1663				return conversation;
1664			}
1665			conversation = databaseBackend.findConversation(account, jid);
1666			final boolean loadMessagesFromDb;
1667			if (conversation != null) {
1668				conversation.setStatus(Conversation.STATUS_AVAILABLE);
1669				conversation.setAccount(account);
1670				if (muc) {
1671					conversation.setMode(Conversation.MODE_MULTI);
1672					conversation.setContactJid(jid);
1673				} else {
1674					conversation.setMode(Conversation.MODE_SINGLE);
1675					conversation.setContactJid(jid.toBareJid());
1676				}
1677				databaseBackend.updateConversation(conversation);
1678				loadMessagesFromDb = conversation.messagesLoaded.compareAndSet(true, false);
1679			} else {
1680				String conversationName;
1681				Contact contact = account.getRoster().getContact(jid);
1682				if (contact != null) {
1683					conversationName = contact.getDisplayName();
1684				} else {
1685					conversationName = jid.getLocalpart();
1686				}
1687				if (muc) {
1688					conversation = new Conversation(conversationName, account, jid,
1689							Conversation.MODE_MULTI);
1690				} else {
1691					conversation = new Conversation(conversationName, account, jid.toBareJid(),
1692							Conversation.MODE_SINGLE);
1693				}
1694				this.databaseBackend.createConversation(conversation);
1695				loadMessagesFromDb = false;
1696			}
1697			final Conversation c = conversation;
1698			final Runnable runnable = new Runnable() {
1699				@Override
1700				public void run() {
1701					if (loadMessagesFromDb) {
1702						c.addAll(0, databaseBackend.getMessages(c, Config.PAGE_SIZE));
1703						updateConversationUi();
1704						c.messagesLoaded.set(true);
1705					}
1706					if (account.getXmppConnection() != null
1707							&& account.getXmppConnection().getFeatures().mam()
1708							&& !muc) {
1709						if (query == null) {
1710							mMessageArchiveService.query(c);
1711						} else {
1712							if (query.getConversation() == null) {
1713								mMessageArchiveService.query(c, query.getStart(), query.isCatchup());
1714							}
1715						}
1716					}
1717					checkDeletedFiles(c);
1718					if (joinAfterCreate) {
1719						joinMuc(c);
1720					}
1721				}
1722			};
1723			if (async) {
1724				mDatabaseReaderExecutor.execute(runnable);
1725			} else {
1726				runnable.run();
1727			}
1728			this.conversations.add(conversation);
1729			updateConversationUi();
1730			return conversation;
1731		}
1732	}
1733
1734	public void archiveConversation(Conversation conversation) {
1735		getNotificationService().clear(conversation);
1736		conversation.setStatus(Conversation.STATUS_ARCHIVED);
1737		synchronized (this.conversations) {
1738			if (conversation.getMode() == Conversation.MODE_MULTI) {
1739				if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
1740					Bookmark bookmark = conversation.getBookmark();
1741					if (bookmark != null && bookmark.autojoin() && respectAutojoin()) {
1742						bookmark.setAutojoin(false);
1743						pushBookmarks(bookmark.getAccount());
1744					}
1745				}
1746				leaveMuc(conversation);
1747			} else {
1748				conversation.endOtrIfNeeded();
1749				if (conversation.getContact().getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
1750					Log.d(Config.LOGTAG, "Canceling presence request from " + conversation.getJid().toString());
1751					sendPresencePacket(
1752							conversation.getAccount(),
1753							mPresenceGenerator.stopPresenceUpdatesTo(conversation.getContact())
1754					);
1755				}
1756			}
1757			updateConversation(conversation);
1758			this.conversations.remove(conversation);
1759			updateConversationUi();
1760		}
1761	}
1762
1763	public void createAccount(final Account account) {
1764		account.initAccountServices(this);
1765		databaseBackend.createAccount(account);
1766		this.accounts.add(account);
1767		this.reconnectAccountInBackground(account);
1768		updateAccountUi();
1769		syncEnabledAccountSetting();
1770		toggleForegroundService();
1771	}
1772
1773	private void syncEnabledAccountSetting() {
1774		getPreferences().edit().putBoolean(EventReceiver.SETTING_ENABLED_ACCOUNTS, hasEnabledAccounts()).apply();
1775	}
1776
1777	public void createAccountFromKey(final String alias, final OnAccountCreated callback) {
1778		new Thread(new Runnable() {
1779			@Override
1780			public void run() {
1781				try {
1782					X509Certificate[] chain = KeyChain.getCertificateChain(XmppConnectionService.this, alias);
1783					Pair<Jid, String> info = CryptoHelper.extractJidAndName(chain[0]);
1784					if (info == null) {
1785						callback.informUser(R.string.certificate_does_not_contain_jid);
1786						return;
1787					}
1788					if (findAccountByJid(info.first) == null) {
1789						Account account = new Account(info.first, "");
1790						account.setPrivateKeyAlias(alias);
1791						account.setOption(Account.OPTION_DISABLED, true);
1792						account.setDisplayName(info.second);
1793						createAccount(account);
1794						callback.onAccountCreated(account);
1795						if (Config.X509_VERIFICATION) {
1796							try {
1797								getMemorizingTrustManager().getNonInteractive(account.getJid().getDomainpart()).checkClientTrusted(chain, "RSA");
1798							} catch (CertificateException e) {
1799								callback.informUser(R.string.certificate_chain_is_not_trusted);
1800							}
1801						}
1802					} else {
1803						callback.informUser(R.string.account_already_exists);
1804					}
1805				} catch (Exception e) {
1806					e.printStackTrace();
1807					callback.informUser(R.string.unable_to_parse_certificate);
1808				}
1809			}
1810		}).start();
1811
1812	}
1813
1814	public void updateKeyInAccount(final Account account, final String alias) {
1815		Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": update key in account " + alias);
1816		try {
1817			X509Certificate[] chain = KeyChain.getCertificateChain(XmppConnectionService.this, alias);
1818			Log.d(Config.LOGTAG, account.getJid().toBareJid() + " loaded certificate chain");
1819			Pair<Jid, String> info = CryptoHelper.extractJidAndName(chain[0]);
1820			if (account.getJid().toBareJid().equals(info.first)) {
1821				account.setPrivateKeyAlias(alias);
1822				account.setDisplayName(info.second);
1823				databaseBackend.updateAccount(account);
1824				if (Config.X509_VERIFICATION) {
1825					try {
1826						getMemorizingTrustManager().getNonInteractive().checkClientTrusted(chain, "RSA");
1827					} catch (CertificateException e) {
1828						showErrorToastInUi(R.string.certificate_chain_is_not_trusted);
1829					}
1830					account.getAxolotlService().regenerateKeys(true);
1831				}
1832			} else {
1833				showErrorToastInUi(R.string.jid_does_not_match_certificate);
1834			}
1835		} catch (Exception e) {
1836			e.printStackTrace();
1837		}
1838	}
1839
1840	public boolean updateAccount(final Account account) {
1841		if (databaseBackend.updateAccount(account)) {
1842			account.setShowErrorNotification(true);
1843			this.statusListener.onStatusChanged(account);
1844			databaseBackend.updateAccount(account);
1845			reconnectAccountInBackground(account);
1846			updateAccountUi();
1847			getNotificationService().updateErrorNotification();
1848			toggleForegroundService();
1849			syncEnabledAccountSetting();
1850			return true;
1851		} else {
1852			return false;
1853		}
1854	}
1855
1856	public void updateAccountPasswordOnServer(final Account account, final String newPassword, final OnAccountPasswordChanged callback) {
1857		final IqPacket iq = getIqGenerator().generateSetPassword(account, newPassword);
1858		sendIqPacket(account, iq, new OnIqPacketReceived() {
1859			@Override
1860			public void onIqPacketReceived(final Account account, final IqPacket packet) {
1861				if (packet.getType() == IqPacket.TYPE.RESULT) {
1862					account.setPassword(newPassword);
1863					account.setOption(Account.OPTION_MAGIC_CREATE, false);
1864					databaseBackend.updateAccount(account);
1865					callback.onPasswordChangeSucceeded();
1866				} else {
1867					callback.onPasswordChangeFailed();
1868				}
1869			}
1870		});
1871	}
1872
1873	public void deleteAccount(final Account account) {
1874		synchronized (this.conversations) {
1875			for (final Conversation conversation : conversations) {
1876				if (conversation.getAccount() == account) {
1877					if (conversation.getMode() == Conversation.MODE_MULTI) {
1878						leaveMuc(conversation);
1879					} else if (conversation.getMode() == Conversation.MODE_SINGLE) {
1880						conversation.endOtrIfNeeded();
1881					}
1882					conversations.remove(conversation);
1883				}
1884			}
1885			if (account.getXmppConnection() != null) {
1886				new Thread(new Runnable() {
1887					@Override
1888					public void run() {
1889						disconnect(account, true);
1890					}
1891				}).start();
1892			}
1893			Runnable runnable = new Runnable() {
1894				@Override
1895				public void run() {
1896					if (!databaseBackend.deleteAccount(account)) {
1897						Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": unable to delete account");
1898					}
1899				}
1900			};
1901			mDatabaseWriterExecutor.execute(runnable);
1902			this.accounts.remove(account);
1903			updateAccountUi();
1904			getNotificationService().updateErrorNotification();
1905			syncEnabledAccountSetting();
1906		}
1907	}
1908
1909	public void setOnConversationListChangedListener(OnConversationUpdate listener) {
1910		synchronized (this) {
1911			this.mLastActivity = System.currentTimeMillis();
1912			if (checkListeners()) {
1913				switchToForeground();
1914			}
1915			this.mOnConversationUpdate = listener;
1916			this.mNotificationService.setIsInForeground(true);
1917			if (this.convChangedListenerCount < 2) {
1918				this.convChangedListenerCount++;
1919			}
1920		}
1921	}
1922
1923	public void removeOnConversationListChangedListener() {
1924		synchronized (this) {
1925			this.convChangedListenerCount--;
1926			if (this.convChangedListenerCount <= 0) {
1927				this.convChangedListenerCount = 0;
1928				this.mOnConversationUpdate = null;
1929				this.mNotificationService.setIsInForeground(false);
1930				if (checkListeners()) {
1931					switchToBackground();
1932				}
1933			}
1934		}
1935	}
1936
1937	public void setOnShowErrorToastListener(OnShowErrorToast onShowErrorToast) {
1938		synchronized (this) {
1939			if (checkListeners()) {
1940				switchToForeground();
1941			}
1942			this.mOnShowErrorToast = onShowErrorToast;
1943			if (this.showErrorToastListenerCount < 2) {
1944				this.showErrorToastListenerCount++;
1945			}
1946		}
1947		this.mOnShowErrorToast = onShowErrorToast;
1948	}
1949
1950	public void removeOnShowErrorToastListener() {
1951		synchronized (this) {
1952			this.showErrorToastListenerCount--;
1953			if (this.showErrorToastListenerCount <= 0) {
1954				this.showErrorToastListenerCount = 0;
1955				this.mOnShowErrorToast = null;
1956				if (checkListeners()) {
1957					switchToBackground();
1958				}
1959			}
1960		}
1961	}
1962
1963	public void setOnAccountListChangedListener(OnAccountUpdate listener) {
1964		synchronized (this) {
1965			if (checkListeners()) {
1966				switchToForeground();
1967			}
1968			this.mOnAccountUpdate = listener;
1969			if (this.accountChangedListenerCount < 2) {
1970				this.accountChangedListenerCount++;
1971			}
1972		}
1973	}
1974
1975	public void removeOnAccountListChangedListener() {
1976		synchronized (this) {
1977			this.accountChangedListenerCount--;
1978			if (this.accountChangedListenerCount <= 0) {
1979				this.mOnAccountUpdate = null;
1980				this.accountChangedListenerCount = 0;
1981				if (checkListeners()) {
1982					switchToBackground();
1983				}
1984			}
1985		}
1986	}
1987
1988	public void setOnCaptchaRequestedListener(OnCaptchaRequested listener) {
1989		synchronized (this) {
1990			if (checkListeners()) {
1991				switchToForeground();
1992			}
1993			this.mOnCaptchaRequested = listener;
1994			if (this.captchaRequestedListenerCount < 2) {
1995				this.captchaRequestedListenerCount++;
1996			}
1997		}
1998	}
1999
2000	public void removeOnCaptchaRequestedListener() {
2001		synchronized (this) {
2002			this.captchaRequestedListenerCount--;
2003			if (this.captchaRequestedListenerCount <= 0) {
2004				this.mOnCaptchaRequested = null;
2005				this.captchaRequestedListenerCount = 0;
2006				if (checkListeners()) {
2007					switchToBackground();
2008				}
2009			}
2010		}
2011	}
2012
2013	public void setOnRosterUpdateListener(final OnRosterUpdate listener) {
2014		synchronized (this) {
2015			if (checkListeners()) {
2016				switchToForeground();
2017			}
2018			this.mOnRosterUpdate = listener;
2019			if (this.rosterChangedListenerCount < 2) {
2020				this.rosterChangedListenerCount++;
2021			}
2022		}
2023	}
2024
2025	public void removeOnRosterUpdateListener() {
2026		synchronized (this) {
2027			this.rosterChangedListenerCount--;
2028			if (this.rosterChangedListenerCount <= 0) {
2029				this.rosterChangedListenerCount = 0;
2030				this.mOnRosterUpdate = null;
2031				if (checkListeners()) {
2032					switchToBackground();
2033				}
2034			}
2035		}
2036	}
2037
2038	public void setOnUpdateBlocklistListener(final OnUpdateBlocklist listener) {
2039		synchronized (this) {
2040			if (checkListeners()) {
2041				switchToForeground();
2042			}
2043			this.mOnUpdateBlocklist = listener;
2044			if (this.updateBlocklistListenerCount < 2) {
2045				this.updateBlocklistListenerCount++;
2046			}
2047		}
2048	}
2049
2050	public void removeOnUpdateBlocklistListener() {
2051		synchronized (this) {
2052			this.updateBlocklistListenerCount--;
2053			if (this.updateBlocklistListenerCount <= 0) {
2054				this.updateBlocklistListenerCount = 0;
2055				this.mOnUpdateBlocklist = null;
2056				if (checkListeners()) {
2057					switchToBackground();
2058				}
2059			}
2060		}
2061	}
2062
2063	public void setOnKeyStatusUpdatedListener(final OnKeyStatusUpdated listener) {
2064		synchronized (this) {
2065			if (checkListeners()) {
2066				switchToForeground();
2067			}
2068			this.mOnKeyStatusUpdated = listener;
2069			if (this.keyStatusUpdatedListenerCount < 2) {
2070				this.keyStatusUpdatedListenerCount++;
2071			}
2072		}
2073	}
2074
2075	public void removeOnNewKeysAvailableListener() {
2076		synchronized (this) {
2077			this.keyStatusUpdatedListenerCount--;
2078			if (this.keyStatusUpdatedListenerCount <= 0) {
2079				this.keyStatusUpdatedListenerCount = 0;
2080				this.mOnKeyStatusUpdated = null;
2081				if (checkListeners()) {
2082					switchToBackground();
2083				}
2084			}
2085		}
2086	}
2087
2088	public void setOnMucRosterUpdateListener(OnMucRosterUpdate listener) {
2089		synchronized (this) {
2090			if (checkListeners()) {
2091				switchToForeground();
2092			}
2093			this.mOnMucRosterUpdate = listener;
2094			if (this.mucRosterChangedListenerCount < 2) {
2095				this.mucRosterChangedListenerCount++;
2096			}
2097		}
2098	}
2099
2100	public void removeOnMucRosterUpdateListener() {
2101		synchronized (this) {
2102			this.mucRosterChangedListenerCount--;
2103			if (this.mucRosterChangedListenerCount <= 0) {
2104				this.mucRosterChangedListenerCount = 0;
2105				this.mOnMucRosterUpdate = null;
2106				if (checkListeners()) {
2107					switchToBackground();
2108				}
2109			}
2110		}
2111	}
2112
2113	public boolean checkListeners() {
2114		return (this.mOnAccountUpdate == null
2115				&& this.mOnConversationUpdate == null
2116				&& this.mOnRosterUpdate == null
2117				&& this.mOnCaptchaRequested == null
2118				&& this.mOnUpdateBlocklist == null
2119				&& this.mOnShowErrorToast == null
2120				&& this.mOnKeyStatusUpdated == null);
2121	}
2122
2123	private void switchToForeground() {
2124		final boolean broadcastLastActivity = broadcastLastActivity();
2125		for (Conversation conversation : getConversations()) {
2126			if (conversation.getMode() == Conversation.MODE_MULTI) {
2127				conversation.getMucOptions().resetChatState();
2128			} else {
2129				conversation.setIncomingChatState(Config.DEFAULT_CHATSTATE);
2130			}
2131		}
2132		for (Account account : getAccounts()) {
2133			if (account.getStatus() == Account.State.ONLINE) {
2134				account.deactivateGracePeriod();
2135				final XmppConnection connection = account.getXmppConnection();
2136				if (connection != null) {
2137					if (connection.getFeatures().csi()) {
2138						connection.sendActive();
2139					}
2140					if (broadcastLastActivity) {
2141						sendPresence(account, false); //send new presence but don't include idle because we are not
2142					}
2143				}
2144			}
2145		}
2146		Log.d(Config.LOGTAG, "app switched into foreground");
2147	}
2148
2149	private void switchToBackground() {
2150		final boolean broadcastLastActivity = broadcastLastActivity();
2151		for (Account account : getAccounts()) {
2152			if (account.getStatus() == Account.State.ONLINE) {
2153				XmppConnection connection = account.getXmppConnection();
2154				if (connection != null) {
2155					if (broadcastLastActivity) {
2156						sendPresence(account, true);
2157					}
2158					if (connection.getFeatures().csi()) {
2159						connection.sendInactive();
2160					}
2161				}
2162			}
2163		}
2164		this.mNotificationService.setIsInForeground(false);
2165		Log.d(Config.LOGTAG, "app switched into background");
2166	}
2167
2168	private void connectMultiModeConversations(Account account) {
2169		List<Conversation> conversations = getConversations();
2170		for (Conversation conversation : conversations) {
2171			if (conversation.getMode() == Conversation.MODE_MULTI && conversation.getAccount() == account) {
2172				joinMuc(conversation);
2173			}
2174		}
2175	}
2176
2177	public void joinMuc(Conversation conversation) {
2178		joinMuc(conversation, null, false);
2179	}
2180
2181	public void joinMuc(Conversation conversation, boolean followedInvite) {
2182		joinMuc(conversation, null, followedInvite);
2183	}
2184
2185	private void joinMuc(Conversation conversation, final OnConferenceJoined onConferenceJoined) {
2186		joinMuc(conversation, onConferenceJoined, false);
2187	}
2188
2189	private void joinMuc(Conversation conversation, final OnConferenceJoined onConferenceJoined, final boolean followedInvite) {
2190		Account account = conversation.getAccount();
2191		account.pendingConferenceJoins.remove(conversation);
2192		account.pendingConferenceLeaves.remove(conversation);
2193		if (account.getStatus() == Account.State.ONLINE) {
2194			sendPresencePacket(account, mPresenceGenerator.leave(conversation.getMucOptions()));
2195			conversation.resetMucOptions();
2196			if (onConferenceJoined != null) {
2197				conversation.getMucOptions().flagNoAutoPushConfiguration();
2198			}
2199			conversation.setHasMessagesLeftOnServer(false);
2200			fetchConferenceConfiguration(conversation, new OnConferenceConfigurationFetched() {
2201
2202				private void join(Conversation conversation) {
2203					Account account = conversation.getAccount();
2204					final MucOptions mucOptions = conversation.getMucOptions();
2205					final Jid joinJid = mucOptions.getSelf().getFullJid();
2206					Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": joining conversation " + joinJid.toString());
2207					PresencePacket packet = mPresenceGenerator.selfPresence(account, Presence.Status.ONLINE, mucOptions.nonanonymous() || onConferenceJoined != null);
2208					packet.setTo(joinJid);
2209					Element x = packet.addChild("x", "http://jabber.org/protocol/muc");
2210					if (conversation.getMucOptions().getPassword() != null) {
2211						x.addChild("password").setContent(mucOptions.getPassword());
2212					}
2213
2214					if (mucOptions.mamSupport()) {
2215						// Use MAM instead of the limited muc history to get history
2216						x.addChild("history").setAttribute("maxchars", "0");
2217					} else {
2218						// Fallback to muc history
2219						x.addChild("history").setAttribute("since", PresenceGenerator.getTimestamp(conversation.getLastMessageTransmitted().getTimestamp()));
2220					}
2221					sendPresencePacket(account, packet);
2222					if (onConferenceJoined != null) {
2223						onConferenceJoined.onConferenceJoined(conversation);
2224					}
2225					if (!joinJid.equals(conversation.getJid())) {
2226						conversation.setContactJid(joinJid);
2227						databaseBackend.updateConversation(conversation);
2228					}
2229
2230					if (mucOptions.mamSupport()) {
2231						getMessageArchiveService().catchupMUC(conversation);
2232					}
2233					if (mucOptions.membersOnly() && mucOptions.nonanonymous()) {
2234						fetchConferenceMembers(conversation);
2235						if (followedInvite && conversation.getBookmark() == null) {
2236							saveConversationAsBookmark(conversation, null);
2237						}
2238					}
2239					sendUnsentMessages(conversation);
2240				}
2241
2242				@Override
2243				public void onConferenceConfigurationFetched(Conversation conversation) {
2244					join(conversation);
2245				}
2246
2247				@Override
2248				public void onFetchFailed(final Conversation conversation, Element error) {
2249					if (error != null && "remote-server-not-found".equals(error.getName())) {
2250						conversation.getMucOptions().setError(MucOptions.Error.SERVER_NOT_FOUND);
2251						updateConversationUi();
2252					} else {
2253						join(conversation);
2254						fetchConferenceConfiguration(conversation);
2255					}
2256				}
2257			});
2258			updateConversationUi();
2259		} else {
2260			account.pendingConferenceJoins.add(conversation);
2261			conversation.resetMucOptions();
2262			conversation.setHasMessagesLeftOnServer(false);
2263			updateConversationUi();
2264		}
2265	}
2266
2267	private void fetchConferenceMembers(final Conversation conversation) {
2268		final Account account = conversation.getAccount();
2269		final AxolotlService axolotlService = account.getAxolotlService();
2270		final String[] affiliations = {"member", "admin", "owner"};
2271		OnIqPacketReceived callback = new OnIqPacketReceived() {
2272
2273			private int i = 0;
2274			private boolean success = true;
2275
2276			@Override
2277			public void onIqPacketReceived(Account account, IqPacket packet) {
2278
2279				Element query = packet.query("http://jabber.org/protocol/muc#admin");
2280				if (packet.getType() == IqPacket.TYPE.RESULT && query != null) {
2281					for (Element child : query.getChildren()) {
2282						if ("item".equals(child.getName())) {
2283							MucOptions.User user = AbstractParser.parseItem(conversation, child);
2284							if (!user.realJidMatchesAccount()) {
2285								boolean isNew = conversation.getMucOptions().updateUser(user);
2286								if (isNew && user.getRealJid() != null && axolotlService.hasEmptyDeviceList(user.getRealJid())) {
2287									axolotlService.fetchDeviceIds(user.getRealJid());
2288								}
2289							}
2290						}
2291					}
2292				} else {
2293					success = false;
2294					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": could not request affiliation " + affiliations[i] + " in " + conversation.getJid().toBareJid());
2295				}
2296				++i;
2297				if (i >= affiliations.length) {
2298					List<Jid> members = conversation.getMucOptions().getMembers();
2299					if (success) {
2300						List<Jid> cryptoTargets = conversation.getAcceptedCryptoTargets();
2301						boolean changed = false;
2302						for (ListIterator<Jid> iterator = cryptoTargets.listIterator(); iterator.hasNext(); ) {
2303							Jid jid = iterator.next();
2304							if (!members.contains(jid)) {
2305								iterator.remove();
2306								Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": removed " + jid + " from crypto targets of " + conversation.getName());
2307								changed = true;
2308							}
2309						}
2310						if (changed) {
2311							conversation.setAcceptedCryptoTargets(cryptoTargets);
2312							updateConversation(conversation);
2313						}
2314					}
2315					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": retrieved members for " + conversation.getJid().toBareJid() + ": " + conversation.getMucOptions().getMembers());
2316					getAvatarService().clear(conversation);
2317					updateMucRosterUi();
2318					updateConversationUi();
2319				}
2320			}
2321		};
2322		for (String affiliation : affiliations) {
2323			sendIqPacket(account, mIqGenerator.queryAffiliation(conversation, affiliation), callback);
2324		}
2325		Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": fetching members for " + conversation.getName());
2326	}
2327
2328	public void providePasswordForMuc(Conversation conversation, String password) {
2329		if (conversation.getMode() == Conversation.MODE_MULTI) {
2330			conversation.getMucOptions().setPassword(password);
2331			if (conversation.getBookmark() != null) {
2332				if (respectAutojoin()) {
2333					conversation.getBookmark().setAutojoin(true);
2334				}
2335				pushBookmarks(conversation.getAccount());
2336			}
2337			updateConversation(conversation);
2338			joinMuc(conversation);
2339		}
2340	}
2341
2342	private boolean hasEnabledAccounts() {
2343		for (Account account : this.accounts) {
2344			if (account.isEnabled()) {
2345				return true;
2346			}
2347		}
2348		return false;
2349	}
2350
2351	public boolean renameInMuc(final Conversation conversation, final String nick, final UiCallback<Conversation> callback) {
2352		final MucOptions options = conversation.getMucOptions();
2353		final Jid joinJid = options.createJoinJid(nick);
2354		if (joinJid == null) {
2355			return false;
2356		}
2357		if (options.online()) {
2358			Account account = conversation.getAccount();
2359			options.setOnRenameListener(new OnRenameListener() {
2360
2361				@Override
2362				public void onSuccess() {
2363					conversation.setContactJid(joinJid);
2364					databaseBackend.updateConversation(conversation);
2365					Bookmark bookmark = conversation.getBookmark();
2366					if (bookmark != null) {
2367						bookmark.setNick(nick);
2368						pushBookmarks(bookmark.getAccount());
2369					}
2370					callback.success(conversation);
2371				}
2372
2373				@Override
2374				public void onFailure() {
2375					callback.error(R.string.nick_in_use, conversation);
2376				}
2377			});
2378
2379			PresencePacket packet = new PresencePacket();
2380			packet.setTo(joinJid);
2381			packet.setFrom(conversation.getAccount().getJid());
2382
2383			String sig = account.getPgpSignature();
2384			if (sig != null) {
2385				packet.addChild("status").setContent("online");
2386				packet.addChild("x", "jabber:x:signed").setContent(sig);
2387			}
2388			sendPresencePacket(account, packet);
2389		} else {
2390			conversation.setContactJid(joinJid);
2391			databaseBackend.updateConversation(conversation);
2392			if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
2393				Bookmark bookmark = conversation.getBookmark();
2394				if (bookmark != null) {
2395					bookmark.setNick(nick);
2396					pushBookmarks(bookmark.getAccount());
2397				}
2398				joinMuc(conversation);
2399			}
2400		}
2401		return true;
2402	}
2403
2404	public void leaveMuc(Conversation conversation) {
2405		leaveMuc(conversation, false);
2406	}
2407
2408	private void leaveMuc(Conversation conversation, boolean now) {
2409		Account account = conversation.getAccount();
2410		account.pendingConferenceJoins.remove(conversation);
2411		account.pendingConferenceLeaves.remove(conversation);
2412		if (account.getStatus() == Account.State.ONLINE || now) {
2413			sendPresencePacket(conversation.getAccount(), mPresenceGenerator.leave(conversation.getMucOptions()));
2414			conversation.getMucOptions().setOffline();
2415			conversation.deregisterWithBookmark();
2416			Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid() + ": leaving muc " + conversation.getJid());
2417		} else {
2418			account.pendingConferenceLeaves.add(conversation);
2419		}
2420	}
2421
2422	public String findConferenceServer(final Account account) {
2423		String server;
2424		if (account.getXmppConnection() != null) {
2425			server = account.getXmppConnection().getMucServer();
2426			if (server != null) {
2427				return server;
2428			}
2429		}
2430		for (Account other : getAccounts()) {
2431			if (other != account && other.getXmppConnection() != null) {
2432				server = other.getXmppConnection().getMucServer();
2433				if (server != null) {
2434					return server;
2435				}
2436			}
2437		}
2438		return null;
2439	}
2440
2441	public boolean createAdhocConference(final Account account,
2442	                                     final String subject,
2443	                                     final Iterable<Jid> jids,
2444	                                     final UiCallback<Conversation> callback) {
2445		Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": creating adhoc conference with " + jids.toString());
2446		if (account.getStatus() == Account.State.ONLINE) {
2447			try {
2448				String server = findConferenceServer(account);
2449				if (server == null) {
2450					if (callback != null) {
2451						callback.error(R.string.no_conference_server_found, null);
2452					}
2453					return false;
2454				}
2455				final Jid jid = Jid.fromParts(new BigInteger(64, getRNG()).toString(Character.MAX_RADIX), server, null);
2456				final Conversation conversation = findOrCreateConversation(account, jid, true, false, true);
2457				joinMuc(conversation, new OnConferenceJoined() {
2458					@Override
2459					public void onConferenceJoined(final Conversation conversation) {
2460						pushConferenceConfiguration(conversation, IqGenerator.defaultRoomConfiguration(), new OnConfigurationPushed() {
2461							@Override
2462							public void onPushSucceeded() {
2463								if (subject != null && !subject.trim().isEmpty()) {
2464									pushSubjectToConference(conversation, subject.trim());
2465								}
2466								for (Jid invite : jids) {
2467									invite(conversation, invite);
2468								}
2469								if (account.countPresences() > 1) {
2470									directInvite(conversation, account.getJid().toBareJid());
2471								}
2472								saveConversationAsBookmark(conversation, subject);
2473								if (callback != null) {
2474									callback.success(conversation);
2475								}
2476							}
2477
2478							@Override
2479							public void onPushFailed() {
2480								archiveConversation(conversation);
2481								if (callback != null) {
2482									callback.error(R.string.conference_creation_failed, conversation);
2483								}
2484							}
2485						});
2486					}
2487				});
2488				return true;
2489			} catch (InvalidJidException e) {
2490				if (callback != null) {
2491					callback.error(R.string.conference_creation_failed, null);
2492				}
2493				return false;
2494			}
2495		} else {
2496			if (callback != null) {
2497				callback.error(R.string.not_connected_try_again, null);
2498			}
2499			return false;
2500		}
2501	}
2502
2503	public void fetchConferenceConfiguration(final Conversation conversation) {
2504		fetchConferenceConfiguration(conversation, null);
2505	}
2506
2507	public void fetchConferenceConfiguration(final Conversation conversation, final OnConferenceConfigurationFetched callback) {
2508		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
2509		request.setTo(conversation.getJid().toBareJid());
2510		request.query("http://jabber.org/protocol/disco#info");
2511		sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
2512			@Override
2513			public void onIqPacketReceived(Account account, IqPacket packet) {
2514				Element query = packet.findChild("query", "http://jabber.org/protocol/disco#info");
2515				if (packet.getType() == IqPacket.TYPE.RESULT && query != null) {
2516					ArrayList<String> features = new ArrayList<>();
2517					for (Element child : query.getChildren()) {
2518						if (child != null && child.getName().equals("feature")) {
2519							String var = child.getAttribute("var");
2520							if (var != null) {
2521								features.add(var);
2522							}
2523						}
2524					}
2525					Element form = query.findChild("x", "jabber:x:data");
2526					if (form != null) {
2527						conversation.getMucOptions().updateFormData(Data.parse(form));
2528					}
2529					conversation.getMucOptions().updateFeatures(features);
2530					if (callback != null) {
2531						callback.onConferenceConfigurationFetched(conversation);
2532					}
2533					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": fetched muc configuration for " + conversation.getJid().toBareJid() + " - " + features.toString());
2534					updateConversationUi();
2535				} else if (packet.getType() == IqPacket.TYPE.ERROR) {
2536					if (callback != null) {
2537						callback.onFetchFailed(conversation, packet.getError());
2538					}
2539				}
2540			}
2541		});
2542	}
2543
2544	public void pushNodeConfiguration(Account account, final String node, final Bundle options, final OnConfigurationPushed callback) {
2545		pushNodeConfiguration(account, account.getJid().toBareJid(), node, options, callback);
2546	}
2547
2548	public void pushNodeConfiguration(Account account, final Jid jid, final String node, final Bundle options, final OnConfigurationPushed callback) {
2549		sendIqPacket(account, mIqGenerator.requestPubsubConfiguration(jid, node), new OnIqPacketReceived() {
2550			@Override
2551			public void onIqPacketReceived(Account account, IqPacket packet) {
2552				if (packet.getType() == IqPacket.TYPE.RESULT) {
2553					Element pubsub = packet.findChild("pubsub", "http://jabber.org/protocol/pubsub#owner");
2554					Element configuration = pubsub == null ? null : pubsub.findChild("configure");
2555					Element x = configuration == null ? null : configuration.findChild("x", "jabber:x:data");
2556					if (x != null) {
2557						Data data = Data.parse(x);
2558						data.submit(options);
2559						sendIqPacket(account, mIqGenerator.publishPubsubConfiguration(jid, node, data), new OnIqPacketReceived() {
2560							@Override
2561							public void onIqPacketReceived(Account account, IqPacket packet) {
2562								if (packet.getType() == IqPacket.TYPE.RESULT && callback != null) {
2563									callback.onPushSucceeded();
2564								} else {
2565									Log.d(Config.LOGTAG, packet.toString());
2566								}
2567							}
2568						});
2569					} else if (callback != null) {
2570						callback.onPushFailed();
2571					}
2572				} else if (callback != null) {
2573					callback.onPushFailed();
2574				}
2575			}
2576		});
2577	}
2578
2579	public void pushConferenceConfiguration(final Conversation conversation, final Bundle options, final OnConfigurationPushed callback) {
2580		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
2581		request.setTo(conversation.getJid().toBareJid());
2582		request.query("http://jabber.org/protocol/muc#owner");
2583		sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
2584			@Override
2585			public void onIqPacketReceived(Account account, IqPacket packet) {
2586				if (packet.getType() == IqPacket.TYPE.RESULT) {
2587					Data data = Data.parse(packet.query().findChild("x", "jabber:x:data"));
2588					data.submit(options);
2589					IqPacket set = new IqPacket(IqPacket.TYPE.SET);
2590					set.setTo(conversation.getJid().toBareJid());
2591					set.query("http://jabber.org/protocol/muc#owner").addChild(data);
2592					sendIqPacket(account, set, new OnIqPacketReceived() {
2593						@Override
2594						public void onIqPacketReceived(Account account, IqPacket packet) {
2595							if (callback != null) {
2596								if (packet.getType() == IqPacket.TYPE.RESULT) {
2597									callback.onPushSucceeded();
2598								} else {
2599									callback.onPushFailed();
2600								}
2601							}
2602						}
2603					});
2604				} else {
2605					if (callback != null) {
2606						callback.onPushFailed();
2607					}
2608				}
2609			}
2610		});
2611	}
2612
2613	public void pushSubjectToConference(final Conversation conference, final String subject) {
2614		MessagePacket packet = this.getMessageGenerator().conferenceSubject(conference, subject);
2615		this.sendMessagePacket(conference.getAccount(), packet);
2616		final MucOptions mucOptions = conference.getMucOptions();
2617		final MucOptions.User self = mucOptions.getSelf();
2618		if (!mucOptions.persistent() && self.getAffiliation().ranks(MucOptions.Affiliation.OWNER)) {
2619			Bundle options = new Bundle();
2620			options.putString("muc#roomconfig_persistentroom", "1");
2621			this.pushConferenceConfiguration(conference, options, null);
2622		}
2623	}
2624
2625	public void changeAffiliationInConference(final Conversation conference, Jid user, final MucOptions.Affiliation affiliation, final OnAffiliationChanged callback) {
2626		final Jid jid = user.toBareJid();
2627		IqPacket request = this.mIqGenerator.changeAffiliation(conference, jid, affiliation.toString());
2628		sendIqPacket(conference.getAccount(), request, new OnIqPacketReceived() {
2629			@Override
2630			public void onIqPacketReceived(Account account, IqPacket packet) {
2631				if (packet.getType() == IqPacket.TYPE.RESULT) {
2632					conference.getMucOptions().changeAffiliation(jid, affiliation);
2633					getAvatarService().clear(conference);
2634					callback.onAffiliationChangedSuccessful(jid);
2635				} else {
2636					callback.onAffiliationChangeFailed(jid, R.string.could_not_change_affiliation);
2637				}
2638			}
2639		});
2640	}
2641
2642	public void changeAffiliationsInConference(final Conversation conference, MucOptions.Affiliation before, MucOptions.Affiliation after) {
2643		List<Jid> jids = new ArrayList<>();
2644		for (MucOptions.User user : conference.getMucOptions().getUsers()) {
2645			if (user.getAffiliation() == before && user.getRealJid() != null) {
2646				jids.add(user.getRealJid());
2647			}
2648		}
2649		IqPacket request = this.mIqGenerator.changeAffiliation(conference, jids, after.toString());
2650		sendIqPacket(conference.getAccount(), request, mDefaultIqHandler);
2651	}
2652
2653	public void changeRoleInConference(final Conversation conference, final String nick, MucOptions.Role role, final OnRoleChanged callback) {
2654		IqPacket request = this.mIqGenerator.changeRole(conference, nick, role.toString());
2655		Log.d(Config.LOGTAG, request.toString());
2656		sendIqPacket(conference.getAccount(), request, new OnIqPacketReceived() {
2657			@Override
2658			public void onIqPacketReceived(Account account, IqPacket packet) {
2659				Log.d(Config.LOGTAG, packet.toString());
2660				if (packet.getType() == IqPacket.TYPE.RESULT) {
2661					callback.onRoleChangedSuccessful(nick);
2662				} else {
2663					callback.onRoleChangeFailed(nick, R.string.could_not_change_role);
2664				}
2665			}
2666		});
2667	}
2668
2669	private void disconnect(Account account, boolean force) {
2670		if ((account.getStatus() == Account.State.ONLINE)
2671				|| (account.getStatus() == Account.State.DISABLED)) {
2672			final XmppConnection connection = account.getXmppConnection();
2673			if (!force) {
2674				List<Conversation> conversations = getConversations();
2675				for (Conversation conversation : conversations) {
2676					if (conversation.getAccount() == account) {
2677						if (conversation.getMode() == Conversation.MODE_MULTI) {
2678							leaveMuc(conversation, true);
2679						} else {
2680							if (conversation.endOtrIfNeeded()) {
2681								Log.d(Config.LOGTAG, account.getJid().toBareJid()
2682										+ ": ended otr session with "
2683										+ conversation.getJid());
2684							}
2685						}
2686					}
2687				}
2688				sendOfflinePresence(account);
2689			}
2690			connection.disconnect(force);
2691		}
2692	}
2693
2694	@Override
2695	public IBinder onBind(Intent intent) {
2696		return mBinder;
2697	}
2698
2699	public void updateMessage(Message message) {
2700		databaseBackend.updateMessage(message);
2701		updateConversationUi();
2702	}
2703
2704	public void updateMessage(Message message, String uuid) {
2705		databaseBackend.updateMessage(message, uuid);
2706		updateConversationUi();
2707	}
2708
2709	protected void syncDirtyContacts(Account account) {
2710		for (Contact contact : account.getRoster().getContacts()) {
2711			if (contact.getOption(Contact.Options.DIRTY_PUSH)) {
2712				pushContactToServer(contact);
2713			}
2714			if (contact.getOption(Contact.Options.DIRTY_DELETE)) {
2715				deleteContactOnServer(contact);
2716			}
2717		}
2718	}
2719
2720	public void createContact(Contact contact) {
2721		boolean autoGrant = getBooleanPreference("grant_new_contacts", R.bool.grant_new_contacts);
2722		if (autoGrant) {
2723			contact.setOption(Contact.Options.PREEMPTIVE_GRANT);
2724			contact.setOption(Contact.Options.ASKING);
2725		}
2726		pushContactToServer(contact);
2727	}
2728
2729	public void onOtrSessionEstablished(Conversation conversation) {
2730		final Account account = conversation.getAccount();
2731		final Session otrSession = conversation.getOtrSession();
2732		Log.d(Config.LOGTAG,
2733				account.getJid().toBareJid() + " otr session established with "
2734						+ conversation.getJid() + "/"
2735						+ otrSession.getSessionID().getUserID());
2736		conversation.findUnsentMessagesWithEncryption(Message.ENCRYPTION_OTR, new Conversation.OnMessageFound() {
2737
2738			@Override
2739			public void onMessageFound(Message message) {
2740				SessionID id = otrSession.getSessionID();
2741				try {
2742					message.setCounterpart(Jid.fromString(id.getAccountID() + "/" + id.getUserID()));
2743				} catch (InvalidJidException e) {
2744					return;
2745				}
2746				if (message.needsUploading()) {
2747					mJingleConnectionManager.createNewConnection(message);
2748				} else {
2749					MessagePacket outPacket = mMessageGenerator.generateOtrChat(message);
2750					if (outPacket != null) {
2751						mMessageGenerator.addDelay(outPacket, message.getTimeSent());
2752						message.setStatus(Message.STATUS_SEND);
2753						databaseBackend.updateMessage(message);
2754						sendMessagePacket(account, outPacket);
2755					}
2756				}
2757				updateConversationUi();
2758			}
2759		});
2760	}
2761
2762	public boolean renewSymmetricKey(Conversation conversation) {
2763		Account account = conversation.getAccount();
2764		byte[] symmetricKey = new byte[32];
2765		this.mRandom.nextBytes(symmetricKey);
2766		Session otrSession = conversation.getOtrSession();
2767		if (otrSession != null) {
2768			MessagePacket packet = new MessagePacket();
2769			packet.setType(MessagePacket.TYPE_CHAT);
2770			packet.setFrom(account.getJid());
2771			MessageGenerator.addMessageHints(packet);
2772			packet.setAttribute("to", otrSession.getSessionID().getAccountID() + "/"
2773					+ otrSession.getSessionID().getUserID());
2774			try {
2775				packet.setBody(otrSession
2776						.transformSending(CryptoHelper.FILETRANSFER
2777								+ CryptoHelper.bytesToHex(symmetricKey))[0]);
2778				sendMessagePacket(account, packet);
2779				conversation.setSymmetricKey(symmetricKey);
2780				return true;
2781			} catch (OtrException e) {
2782				return false;
2783			}
2784		}
2785		return false;
2786	}
2787
2788	public void pushContactToServer(final Contact contact) {
2789		contact.resetOption(Contact.Options.DIRTY_DELETE);
2790		contact.setOption(Contact.Options.DIRTY_PUSH);
2791		final Account account = contact.getAccount();
2792		if (account.getStatus() == Account.State.ONLINE) {
2793			final boolean ask = contact.getOption(Contact.Options.ASKING);
2794			final boolean sendUpdates = contact
2795					.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)
2796					&& contact.getOption(Contact.Options.PREEMPTIVE_GRANT);
2797			final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
2798			iq.query(Namespace.ROSTER).addChild(contact.asElement());
2799			account.getXmppConnection().sendIqPacket(iq, mDefaultIqHandler);
2800			if (sendUpdates) {
2801				sendPresencePacket(account,
2802						mPresenceGenerator.sendPresenceUpdatesTo(contact));
2803			}
2804			if (ask) {
2805				sendPresencePacket(account,
2806						mPresenceGenerator.requestPresenceUpdatesFrom(contact));
2807			}
2808		}
2809	}
2810
2811	public void publishAvatar(Account account, Uri image, UiCallback<Avatar> callback) {
2812		final Bitmap.CompressFormat format = Config.AVATAR_FORMAT;
2813		final int size = Config.AVATAR_SIZE;
2814		final Avatar avatar = getFileBackend().getPepAvatar(image, size, format);
2815		if (avatar != null) {
2816			avatar.height = size;
2817			avatar.width = size;
2818			if (format.equals(Bitmap.CompressFormat.WEBP)) {
2819				avatar.type = "image/webp";
2820			} else if (format.equals(Bitmap.CompressFormat.JPEG)) {
2821				avatar.type = "image/jpeg";
2822			} else if (format.equals(Bitmap.CompressFormat.PNG)) {
2823				avatar.type = "image/png";
2824			}
2825			if (!getFileBackend().save(avatar)) {
2826				callback.error(R.string.error_saving_avatar, avatar);
2827				return;
2828			}
2829			publishAvatar(account, avatar, callback);
2830		} else {
2831			callback.error(R.string.error_publish_avatar_converting, null);
2832		}
2833	}
2834
2835	public void publishAvatar(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2836		IqPacket packet = this.mIqGenerator.publishAvatar(avatar);
2837		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2838
2839			@Override
2840			public void onIqPacketReceived(Account account, IqPacket result) {
2841				if (result.getType() == IqPacket.TYPE.RESULT) {
2842					final IqPacket packet = XmppConnectionService.this.mIqGenerator.publishAvatarMetadata(avatar);
2843					sendIqPacket(account, packet, new OnIqPacketReceived() {
2844						@Override
2845						public void onIqPacketReceived(Account account, IqPacket result) {
2846							if (result.getType() == IqPacket.TYPE.RESULT) {
2847								if (account.setAvatar(avatar.getFilename())) {
2848									getAvatarService().clear(account);
2849									databaseBackend.updateAccount(account);
2850								}
2851								Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": published avatar " + (avatar.size / 1024) + "KiB");
2852								if (callback != null) {
2853									callback.success(avatar);
2854								}
2855							} else {
2856								if (callback != null) {
2857									callback.error(R.string.error_publish_avatar_server_reject, avatar);
2858								}
2859							}
2860						}
2861					});
2862				} else {
2863					Element error = result.findChild("error");
2864					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": server rejected avatar " + (avatar.size / 1024) + "KiB " + (error != null ? error.toString() : ""));
2865					if (callback != null) {
2866						callback.error(R.string.error_publish_avatar_server_reject, avatar);
2867					}
2868				}
2869			}
2870		});
2871	}
2872
2873	public void republishAvatarIfNeeded(Account account) {
2874		if (account.getAxolotlService().isPepBroken()) {
2875			Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": skipping republication of avatar because pep is broken");
2876			return;
2877		}
2878		IqPacket packet = this.mIqGenerator.retrieveAvatarMetaData(null);
2879		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2880
2881			private Avatar parseAvatar(IqPacket packet) {
2882				Element pubsub = packet.findChild("pubsub", "http://jabber.org/protocol/pubsub");
2883				if (pubsub != null) {
2884					Element items = pubsub.findChild("items");
2885					if (items != null) {
2886						return Avatar.parseMetadata(items);
2887					}
2888				}
2889				return null;
2890			}
2891
2892			private boolean errorIsItemNotFound(IqPacket packet) {
2893				Element error = packet.findChild("error");
2894				return packet.getType() == IqPacket.TYPE.ERROR
2895						&& error != null
2896						&& error.hasChild("item-not-found");
2897			}
2898
2899			@Override
2900			public void onIqPacketReceived(Account account, IqPacket packet) {
2901				if (packet.getType() == IqPacket.TYPE.RESULT || errorIsItemNotFound(packet)) {
2902					Avatar serverAvatar = parseAvatar(packet);
2903					if (serverAvatar == null && account.getAvatar() != null) {
2904						Avatar avatar = fileBackend.getStoredPepAvatar(account.getAvatar());
2905						if (avatar != null) {
2906							Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": avatar on server was null. republishing");
2907							publishAvatar(account, fileBackend.getStoredPepAvatar(account.getAvatar()), null);
2908						} else {
2909							Log.e(Config.LOGTAG, account.getJid().toBareJid() + ": error rereading avatar");
2910						}
2911					}
2912				}
2913			}
2914		});
2915	}
2916
2917	public void fetchAvatar(Account account, Avatar avatar) {
2918		fetchAvatar(account, avatar, null);
2919	}
2920
2921	public void fetchAvatar(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2922		final String KEY = generateFetchKey(account, avatar);
2923		synchronized (this.mInProgressAvatarFetches) {
2924			if (!this.mInProgressAvatarFetches.contains(KEY)) {
2925				switch (avatar.origin) {
2926					case PEP:
2927						this.mInProgressAvatarFetches.add(KEY);
2928						fetchAvatarPep(account, avatar, callback);
2929						break;
2930					case VCARD:
2931						this.mInProgressAvatarFetches.add(KEY);
2932						fetchAvatarVcard(account, avatar, callback);
2933						break;
2934				}
2935			}
2936		}
2937	}
2938
2939	private void fetchAvatarPep(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2940		IqPacket packet = this.mIqGenerator.retrievePepAvatar(avatar);
2941		sendIqPacket(account, packet, new OnIqPacketReceived() {
2942
2943			@Override
2944			public void onIqPacketReceived(Account account, IqPacket result) {
2945				synchronized (mInProgressAvatarFetches) {
2946					mInProgressAvatarFetches.remove(generateFetchKey(account, avatar));
2947				}
2948				final String ERROR = account.getJid().toBareJid()
2949						+ ": fetching avatar for " + avatar.owner + " failed ";
2950				if (result.getType() == IqPacket.TYPE.RESULT) {
2951					avatar.image = mIqParser.avatarData(result);
2952					if (avatar.image != null) {
2953						if (getFileBackend().save(avatar)) {
2954							if (account.getJid().toBareJid().equals(avatar.owner)) {
2955								if (account.setAvatar(avatar.getFilename())) {
2956									databaseBackend.updateAccount(account);
2957								}
2958								getAvatarService().clear(account);
2959								updateConversationUi();
2960								updateAccountUi();
2961							} else {
2962								Contact contact = account.getRoster()
2963										.getContact(avatar.owner);
2964								contact.setAvatar(avatar);
2965								getAvatarService().clear(contact);
2966								updateConversationUi();
2967								updateRosterUi();
2968							}
2969							if (callback != null) {
2970								callback.success(avatar);
2971							}
2972							Log.d(Config.LOGTAG, account.getJid().toBareJid()
2973									+ ": successfully fetched pep avatar for " + avatar.owner);
2974							return;
2975						}
2976					} else {
2977
2978						Log.d(Config.LOGTAG, ERROR + "(parsing error)");
2979					}
2980				} else {
2981					Element error = result.findChild("error");
2982					if (error == null) {
2983						Log.d(Config.LOGTAG, ERROR + "(server error)");
2984					} else {
2985						Log.d(Config.LOGTAG, ERROR + error.toString());
2986					}
2987				}
2988				if (callback != null) {
2989					callback.error(0, null);
2990				}
2991
2992			}
2993		});
2994	}
2995
2996	private void fetchAvatarVcard(final Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2997		IqPacket packet = this.mIqGenerator.retrieveVcardAvatar(avatar);
2998		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2999			@Override
3000			public void onIqPacketReceived(Account account, IqPacket packet) {
3001				synchronized (mInProgressAvatarFetches) {
3002					mInProgressAvatarFetches.remove(generateFetchKey(account, avatar));
3003				}
3004				if (packet.getType() == IqPacket.TYPE.RESULT) {
3005					Element vCard = packet.findChild("vCard", "vcard-temp");
3006					Element photo = vCard != null ? vCard.findChild("PHOTO") : null;
3007					String image = photo != null ? photo.findChildContent("BINVAL") : null;
3008					if (image != null) {
3009						avatar.image = image;
3010						if (getFileBackend().save(avatar)) {
3011							Log.d(Config.LOGTAG, account.getJid().toBareJid()
3012									+ ": successfully fetched vCard avatar for " + avatar.owner);
3013							if (avatar.owner.isBareJid()) {
3014								if (account.getJid().toBareJid().equals(avatar.owner) && account.getAvatar() == null) {
3015									Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": had no avatar. replacing with vcard");
3016									account.setAvatar(avatar.getFilename());
3017									databaseBackend.updateAccount(account);
3018									getAvatarService().clear(account);
3019									updateAccountUi();
3020								} else {
3021									Contact contact = account.getRoster().getContact(avatar.owner);
3022									contact.setAvatar(avatar);
3023									getAvatarService().clear(contact);
3024									updateRosterUi();
3025								}
3026								updateConversationUi();
3027							} else {
3028								Conversation conversation = find(account, avatar.owner.toBareJid());
3029								if (conversation != null && conversation.getMode() == Conversation.MODE_MULTI) {
3030									MucOptions.User user = conversation.getMucOptions().findUserByFullJid(avatar.owner);
3031									if (user != null) {
3032										if (user.setAvatar(avatar)) {
3033											getAvatarService().clear(user);
3034											updateConversationUi();
3035											updateMucRosterUi();
3036										}
3037									}
3038								}
3039							}
3040						}
3041					}
3042				}
3043			}
3044		});
3045	}
3046
3047	public void checkForAvatar(Account account, final UiCallback<Avatar> callback) {
3048		IqPacket packet = this.mIqGenerator.retrieveAvatarMetaData(null);
3049		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
3050
3051			@Override
3052			public void onIqPacketReceived(Account account, IqPacket packet) {
3053				if (packet.getType() == IqPacket.TYPE.RESULT) {
3054					Element pubsub = packet.findChild("pubsub", "http://jabber.org/protocol/pubsub");
3055					if (pubsub != null) {
3056						Element items = pubsub.findChild("items");
3057						if (items != null) {
3058							Avatar avatar = Avatar.parseMetadata(items);
3059							if (avatar != null) {
3060								avatar.owner = account.getJid().toBareJid();
3061								if (fileBackend.isAvatarCached(avatar)) {
3062									if (account.setAvatar(avatar.getFilename())) {
3063										databaseBackend.updateAccount(account);
3064									}
3065									getAvatarService().clear(account);
3066									callback.success(avatar);
3067								} else {
3068									fetchAvatarPep(account, avatar, callback);
3069								}
3070								return;
3071							}
3072						}
3073					}
3074				}
3075				callback.error(0, null);
3076			}
3077		});
3078	}
3079
3080	public void deleteContactOnServer(Contact contact) {
3081		contact.resetOption(Contact.Options.PREEMPTIVE_GRANT);
3082		contact.resetOption(Contact.Options.DIRTY_PUSH);
3083		contact.setOption(Contact.Options.DIRTY_DELETE);
3084		Account account = contact.getAccount();
3085		if (account.getStatus() == Account.State.ONLINE) {
3086			IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
3087			Element item = iq.query(Namespace.ROSTER).addChild("item");
3088			item.setAttribute("jid", contact.getJid().toString());
3089			item.setAttribute("subscription", "remove");
3090			account.getXmppConnection().sendIqPacket(iq, mDefaultIqHandler);
3091		}
3092	}
3093
3094	public void updateConversation(final Conversation conversation) {
3095		mDatabaseWriterExecutor.execute(new Runnable() {
3096			@Override
3097			public void run() {
3098				databaseBackend.updateConversation(conversation);
3099			}
3100		});
3101	}
3102
3103	private void reconnectAccount(final Account account, final boolean force, final boolean interactive) {
3104		synchronized (account) {
3105			XmppConnection connection = account.getXmppConnection();
3106			if (connection == null) {
3107				connection = createConnection(account);
3108				account.setXmppConnection(connection);
3109			}
3110			boolean hasInternet = hasInternetConnection();
3111			if (account.isEnabled() && hasInternet) {
3112				if (!force) {
3113					disconnect(account, false);
3114				}
3115				Thread thread = new Thread(connection);
3116				connection.setInteractive(interactive);
3117				connection.prepareNewConnection();
3118				connection.interrupt();
3119				thread.start();
3120				scheduleWakeUpCall(Config.CONNECT_DISCO_TIMEOUT, account.getUuid().hashCode());
3121			} else {
3122				disconnect(account, force || account.getTrueStatus().isError() || !hasInternet);
3123				account.getRoster().clearPresences();
3124				connection.resetEverything();
3125				final AxolotlService axolotlService = account.getAxolotlService();
3126				if (axolotlService != null) {
3127					axolotlService.resetBrokenness();
3128				}
3129				if (!hasInternet) {
3130					account.setStatus(Account.State.NO_INTERNET);
3131				}
3132			}
3133		}
3134	}
3135
3136	public void reconnectAccountInBackground(final Account account) {
3137		new Thread(new Runnable() {
3138			@Override
3139			public void run() {
3140				reconnectAccount(account, false, true);
3141			}
3142		}).start();
3143	}
3144
3145	public void invite(Conversation conversation, Jid contact) {
3146		Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid() + ": inviting " + contact + " to " + conversation.getJid().toBareJid());
3147		MessagePacket packet = mMessageGenerator.invite(conversation, contact);
3148		sendMessagePacket(conversation.getAccount(), packet);
3149	}
3150
3151	public void directInvite(Conversation conversation, Jid jid) {
3152		MessagePacket packet = mMessageGenerator.directInvite(conversation, jid);
3153		sendMessagePacket(conversation.getAccount(), packet);
3154	}
3155
3156	public void resetSendingToWaiting(Account account) {
3157		for (Conversation conversation : getConversations()) {
3158			if (conversation.getAccount() == account) {
3159				conversation.findUnsentTextMessages(new Conversation.OnMessageFound() {
3160
3161					@Override
3162					public void onMessageFound(Message message) {
3163						markMessage(message, Message.STATUS_WAITING);
3164					}
3165				});
3166			}
3167		}
3168	}
3169
3170	public Message markMessage(final Account account, final Jid recipient, final String uuid, final int status) {
3171		return markMessage(account, recipient, uuid, status, null);
3172	}
3173
3174	public Message markMessage(final Account account, final Jid recipient, final String uuid, final int status, String errorMessage) {
3175		if (uuid == null) {
3176			return null;
3177		}
3178		for (Conversation conversation : getConversations()) {
3179			if (conversation.getJid().toBareJid().equals(recipient) && conversation.getAccount() == account) {
3180				final Message message = conversation.findSentMessageWithUuidOrRemoteId(uuid);
3181				if (message != null) {
3182					markMessage(message, status, errorMessage);
3183				}
3184				return message;
3185			}
3186		}
3187		return null;
3188	}
3189
3190	public boolean markMessage(Conversation conversation, String uuid, int status, String serverMessageId) {
3191		if (uuid == null) {
3192			return false;
3193		} else {
3194			Message message = conversation.findSentMessageWithUuid(uuid);
3195			if (message != null) {
3196				if (message.getServerMsgId() == null) {
3197					message.setServerMsgId(serverMessageId);
3198				}
3199				markMessage(message, status);
3200				return true;
3201			} else {
3202				return false;
3203			}
3204		}
3205	}
3206
3207	public void markMessage(Message message, int status) {
3208		markMessage(message, status, null);
3209	}
3210
3211
3212	public void markMessage(Message message, int status, String errorMessage) {
3213		if (status == Message.STATUS_SEND_FAILED
3214				&& (message.getStatus() == Message.STATUS_SEND_RECEIVED || message
3215				.getStatus() == Message.STATUS_SEND_DISPLAYED)) {
3216			return;
3217		}
3218		message.setErrorMessage(errorMessage);
3219		message.setStatus(status);
3220		databaseBackend.updateMessage(message);
3221		updateConversationUi();
3222	}
3223
3224	private SharedPreferences getPreferences() {
3225		return PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
3226	}
3227
3228	public long getAutomaticMessageDeletionDate() {
3229		final long timeout = getLongPreference(SettingsActivity.AUTOMATIC_MESSAGE_DELETION, R.integer.automatic_message_deletion);
3230		return timeout == 0 ? timeout : (System.currentTimeMillis() - (timeout * 1000));
3231	}
3232
3233	public long getLongPreference(String name, @IntegerRes int res) {
3234		long defaultValue = getResources().getInteger(res);
3235		try {
3236			return Long.parseLong(getPreferences().getString(name, String.valueOf(defaultValue)));
3237		} catch (NumberFormatException e) {
3238			return defaultValue;
3239		}
3240	}
3241
3242	public boolean getBooleanPreference(String name, @BoolRes int res) {
3243		return getPreferences().getBoolean(name, getResources().getBoolean(res));
3244	}
3245
3246	public boolean confirmMessages() {
3247		return getBooleanPreference("confirm_messages", R.bool.confirm_messages);
3248	}
3249
3250	public boolean allowMessageCorrection() {
3251		return getBooleanPreference("allow_message_correction", R.bool.allow_message_correction);
3252	}
3253
3254	public boolean sendChatStates() {
3255		return getBooleanPreference("chat_states", R.bool.chat_states);
3256	}
3257
3258	private boolean respectAutojoin() {
3259		return getBooleanPreference("autojoin", R.bool.autojoin);
3260	}
3261
3262	public boolean indicateReceived() {
3263		return getBooleanPreference("indicate_received", R.bool.indicate_received);
3264	}
3265
3266	public boolean useTorToConnect() {
3267		return Config.FORCE_ORBOT || getBooleanPreference("use_tor", R.bool.use_tor);
3268	}
3269
3270	public boolean showExtendedConnectionOptions() {
3271		return getBooleanPreference("show_connection_options", R.bool.show_connection_options);
3272	}
3273
3274	public boolean broadcastLastActivity() {
3275		return getBooleanPreference(SettingsActivity.BROADCAST_LAST_ACTIVITY, R.bool.last_activity);
3276	}
3277
3278	public int unreadCount() {
3279		int count = 0;
3280		for (Conversation conversation : getConversations()) {
3281			count += conversation.unreadCount();
3282		}
3283		return count;
3284	}
3285
3286
3287	public void showErrorToastInUi(int resId) {
3288		if (mOnShowErrorToast != null) {
3289			mOnShowErrorToast.onShowErrorToast(resId);
3290		}
3291	}
3292
3293	public void updateConversationUi() {
3294		if (mOnConversationUpdate != null) {
3295			mOnConversationUpdate.onConversationUpdate();
3296		}
3297	}
3298
3299	public void updateAccountUi() {
3300		if (mOnAccountUpdate != null) {
3301			mOnAccountUpdate.onAccountUpdate();
3302		}
3303	}
3304
3305	public void updateRosterUi() {
3306		if (mOnRosterUpdate != null) {
3307			mOnRosterUpdate.onRosterUpdate();
3308		}
3309	}
3310
3311	public boolean displayCaptchaRequest(Account account, String id, Data data, Bitmap captcha) {
3312		if (mOnCaptchaRequested != null) {
3313			DisplayMetrics metrics = getApplicationContext().getResources().getDisplayMetrics();
3314			Bitmap scaled = Bitmap.createScaledBitmap(captcha, (int) (captcha.getWidth() * metrics.scaledDensity),
3315					(int) (captcha.getHeight() * metrics.scaledDensity), false);
3316
3317			mOnCaptchaRequested.onCaptchaRequested(account, id, data, scaled);
3318			return true;
3319		}
3320		return false;
3321	}
3322
3323	public void updateBlocklistUi(final OnUpdateBlocklist.Status status) {
3324		if (mOnUpdateBlocklist != null) {
3325			mOnUpdateBlocklist.OnUpdateBlocklist(status);
3326		}
3327	}
3328
3329	public void updateMucRosterUi() {
3330		if (mOnMucRosterUpdate != null) {
3331			mOnMucRosterUpdate.onMucRosterUpdate();
3332		}
3333	}
3334
3335	public void keyStatusUpdated(AxolotlService.FetchStatus report) {
3336		if (mOnKeyStatusUpdated != null) {
3337			mOnKeyStatusUpdated.onKeyStatusUpdated(report);
3338		}
3339	}
3340
3341	public Account findAccountByJid(final Jid accountJid) {
3342		for (Account account : this.accounts) {
3343			if (account.getJid().toBareJid().equals(accountJid.toBareJid())) {
3344				return account;
3345			}
3346		}
3347		return null;
3348	}
3349
3350	public Conversation findConversationByUuid(String uuid) {
3351		for (Conversation conversation : getConversations()) {
3352			if (conversation.getUuid().equals(uuid)) {
3353				return conversation;
3354			}
3355		}
3356		return null;
3357	}
3358
3359	public boolean markRead(final Conversation conversation) {
3360		return markRead(conversation, true);
3361	}
3362
3363	public boolean markRead(final Conversation conversation, boolean clear) {
3364		if (clear) {
3365			mNotificationService.clear(conversation);
3366		}
3367		final List<Message> readMessages = conversation.markRead();
3368		if (readMessages.size() > 0) {
3369			Runnable runnable = new Runnable() {
3370				@Override
3371				public void run() {
3372					for (Message message : readMessages) {
3373						databaseBackend.updateMessage(message);
3374					}
3375				}
3376			};
3377			mDatabaseWriterExecutor.execute(runnable);
3378			updateUnreadCountBadge();
3379			return true;
3380		} else {
3381			return false;
3382		}
3383	}
3384
3385	public synchronized void updateUnreadCountBadge() {
3386		int count = unreadCount();
3387		if (unreadCount != count) {
3388			Log.d(Config.LOGTAG, "update unread count to " + count);
3389			if (count > 0) {
3390				ShortcutBadger.applyCount(getApplicationContext(), count);
3391			} else {
3392				ShortcutBadger.removeCount(getApplicationContext());
3393			}
3394			unreadCount = count;
3395		}
3396	}
3397
3398	public void sendReadMarker(final Conversation conversation) {
3399		final Message markable = conversation.getLatestMarkableMessage();
3400		if (this.markRead(conversation)) {
3401			updateConversationUi();
3402		}
3403		if (confirmMessages()
3404				&& markable != null
3405				&& markable.trusted()
3406				&& markable.getRemoteMsgId() != null
3407				&& markable.getType() != Message.TYPE_PRIVATE) {
3408			Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid() + ": sending read marker to " + markable.getCounterpart().toString());
3409			Account account = conversation.getAccount();
3410			final Jid to = markable.getCounterpart();
3411			final boolean groupChat = conversation.getMode() == Conversation.MODE_MULTI;
3412			MessagePacket packet = mMessageGenerator.confirm(account, to, markable.getRemoteMsgId(), markable.getCounterpart(), groupChat);
3413			this.sendMessagePacket(conversation.getAccount(), packet);
3414		}
3415	}
3416
3417	public SecureRandom getRNG() {
3418		return this.mRandom;
3419	}
3420
3421	public MemorizingTrustManager getMemorizingTrustManager() {
3422		return this.mMemorizingTrustManager;
3423	}
3424
3425	public void setMemorizingTrustManager(MemorizingTrustManager trustManager) {
3426		this.mMemorizingTrustManager = trustManager;
3427	}
3428
3429	public void updateMemorizingTrustmanager() {
3430		final MemorizingTrustManager tm;
3431		final boolean dontTrustSystemCAs = getBooleanPreference("dont_trust_system_cas", R.bool.dont_trust_system_cas);
3432		if (dontTrustSystemCAs) {
3433			tm = new MemorizingTrustManager(getApplicationContext(), null);
3434		} else {
3435			tm = new MemorizingTrustManager(getApplicationContext());
3436		}
3437		setMemorizingTrustManager(tm);
3438	}
3439
3440	public PowerManager getPowerManager() {
3441		return this.pm;
3442	}
3443
3444	public LruCache<String, Bitmap> getBitmapCache() {
3445		return this.mBitmapCache;
3446	}
3447
3448	public void syncRosterToDisk(final Account account) {
3449		Runnable runnable = new Runnable() {
3450
3451			@Override
3452			public void run() {
3453				databaseBackend.writeRoster(account.getRoster());
3454			}
3455		};
3456		mDatabaseWriterExecutor.execute(runnable);
3457
3458	}
3459
3460	public List<String> getKnownHosts() {
3461		final List<String> hosts = new ArrayList<>();
3462		for (final Account account : getAccounts()) {
3463			if (!hosts.contains(account.getServer().toString())) {
3464				hosts.add(account.getServer().toString());
3465			}
3466			for (final Contact contact : account.getRoster().getContacts()) {
3467				if (contact.showInRoster()) {
3468					final String server = contact.getServer().toString();
3469					if (server != null && !hosts.contains(server)) {
3470						hosts.add(server);
3471					}
3472				}
3473			}
3474		}
3475		if (Config.DOMAIN_LOCK != null && !hosts.contains(Config.DOMAIN_LOCK)) {
3476			hosts.add(Config.DOMAIN_LOCK);
3477		}
3478		if (Config.MAGIC_CREATE_DOMAIN != null && !hosts.contains(Config.MAGIC_CREATE_DOMAIN)) {
3479			hosts.add(Config.MAGIC_CREATE_DOMAIN);
3480		}
3481		return hosts;
3482	}
3483
3484	public List<String> getKnownConferenceHosts() {
3485		final ArrayList<String> mucServers = new ArrayList<>();
3486		for (final Account account : accounts) {
3487			if (account.getXmppConnection() != null) {
3488				final String server = account.getXmppConnection().getMucServer();
3489				if (server != null && !mucServers.contains(server)) {
3490					mucServers.add(server);
3491				}
3492				for (Bookmark bookmark : account.getBookmarks()) {
3493					final Jid jid = bookmark.getJid();
3494					final String s = jid == null ? null : jid.getDomainpart();
3495					if (s != null && !mucServers.contains(s)) {
3496						mucServers.add(s);
3497					}
3498				}
3499			}
3500		}
3501		return mucServers;
3502	}
3503
3504	public void sendMessagePacket(Account account, MessagePacket packet) {
3505		XmppConnection connection = account.getXmppConnection();
3506		if (connection != null) {
3507			connection.sendMessagePacket(packet);
3508		}
3509	}
3510
3511	public void sendPresencePacket(Account account, PresencePacket packet) {
3512		XmppConnection connection = account.getXmppConnection();
3513		if (connection != null) {
3514			connection.sendPresencePacket(packet);
3515		}
3516	}
3517
3518	public void sendCreateAccountWithCaptchaPacket(Account account, String id, Data data) {
3519		final XmppConnection connection = account.getXmppConnection();
3520		if (connection != null) {
3521			IqPacket request = mIqGenerator.generateCreateAccountWithCaptcha(account, id, data);
3522			connection.sendUnmodifiedIqPacket(request, connection.registrationResponseListener);
3523		}
3524	}
3525
3526	public void sendIqPacket(final Account account, final IqPacket packet, final OnIqPacketReceived callback) {
3527		final XmppConnection connection = account.getXmppConnection();
3528		if (connection != null) {
3529			connection.sendIqPacket(packet, callback);
3530		}
3531	}
3532
3533	public void sendPresence(final Account account) {
3534		sendPresence(account, checkListeners() && broadcastLastActivity());
3535	}
3536
3537	private void sendPresence(final Account account, final boolean includeIdleTimestamp) {
3538		PresencePacket packet;
3539		if (manuallyChangePresence()) {
3540			packet = mPresenceGenerator.selfPresence(account, account.getPresenceStatus());
3541			String message = account.getPresenceStatusMessage();
3542			if (message != null && !message.isEmpty()) {
3543				packet.addChild(new Element("status").setContent(message));
3544			}
3545		} else {
3546			packet = mPresenceGenerator.selfPresence(account, getTargetPresence());
3547		}
3548		if (mLastActivity > 0 && includeIdleTimestamp) {
3549			long since = Math.min(mLastActivity, System.currentTimeMillis()); //don't send future dates
3550			packet.addChild("idle", Namespace.IDLE).setAttribute("since", AbstractGenerator.getTimestamp(since));
3551		}
3552		sendPresencePacket(account, packet);
3553	}
3554
3555	private void deactivateGracePeriod() {
3556		for (Account account : getAccounts()) {
3557			account.deactivateGracePeriod();
3558		}
3559	}
3560
3561	public void refreshAllPresences() {
3562		boolean includeIdleTimestamp = checkListeners() && broadcastLastActivity();
3563		for (Account account : getAccounts()) {
3564			if (account.isEnabled()) {
3565				sendPresence(account, includeIdleTimestamp);
3566			}
3567		}
3568	}
3569
3570	private void refreshAllGcmTokens() {
3571		for (Account account : getAccounts()) {
3572			if (account.isOnlineAndConnected() && mPushManagementService.available(account)) {
3573				mPushManagementService.registerPushTokenOnServer(account);
3574			}
3575		}
3576	}
3577
3578	private void sendOfflinePresence(final Account account) {
3579		Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": sending offline presence");
3580		sendPresencePacket(account, mPresenceGenerator.sendOfflinePresence(account));
3581	}
3582
3583	public MessageGenerator getMessageGenerator() {
3584		return this.mMessageGenerator;
3585	}
3586
3587	public PresenceGenerator getPresenceGenerator() {
3588		return this.mPresenceGenerator;
3589	}
3590
3591	public IqGenerator getIqGenerator() {
3592		return this.mIqGenerator;
3593	}
3594
3595	public IqParser getIqParser() {
3596		return this.mIqParser;
3597	}
3598
3599	public JingleConnectionManager getJingleConnectionManager() {
3600		return this.mJingleConnectionManager;
3601	}
3602
3603	public MessageArchiveService getMessageArchiveService() {
3604		return this.mMessageArchiveService;
3605	}
3606
3607	public List<Contact> findContacts(Jid jid, String accountJid) {
3608		ArrayList<Contact> contacts = new ArrayList<>();
3609		for (Account account : getAccounts()) {
3610			if ((account.isEnabled() || accountJid != null)
3611					&& (accountJid == null || accountJid.equals(account.getJid().toBareJid().toString()))) {
3612				Contact contact = account.getRoster().getContactFromRoster(jid);
3613				if (contact != null) {
3614					contacts.add(contact);
3615				}
3616			}
3617		}
3618		return contacts;
3619	}
3620
3621	public Conversation findFirstMuc(Jid jid) {
3622		for (Conversation conversation : getConversations()) {
3623			if (conversation.getAccount().isEnabled() && conversation.getJid().toBareJid().equals(jid.toBareJid()) && conversation.getMode() == Conversation.MODE_MULTI) {
3624				return conversation;
3625			}
3626		}
3627		return null;
3628	}
3629
3630	public NotificationService getNotificationService() {
3631		return this.mNotificationService;
3632	}
3633
3634	public HttpConnectionManager getHttpConnectionManager() {
3635		return this.mHttpConnectionManager;
3636	}
3637
3638	public void resendFailedMessages(final Message message) {
3639		final Collection<Message> messages = new ArrayList<>();
3640		Message current = message;
3641		while (current.getStatus() == Message.STATUS_SEND_FAILED) {
3642			messages.add(current);
3643			if (current.mergeable(current.next())) {
3644				current = current.next();
3645			} else {
3646				break;
3647			}
3648		}
3649		for (final Message msg : messages) {
3650			msg.setTime(System.currentTimeMillis());
3651			markMessage(msg, Message.STATUS_WAITING);
3652			this.resendMessage(msg, false);
3653		}
3654	}
3655
3656	public void clearConversationHistory(final Conversation conversation) {
3657		final long clearDate;
3658		final String reference;
3659		if (conversation.countMessages() > 0) {
3660			Message latestMessage = conversation.getLatestMessage();
3661			clearDate = latestMessage.getTimeSent() + 1000;
3662			reference = latestMessage.getServerMsgId();
3663		} else {
3664			clearDate = System.currentTimeMillis();
3665			reference = null;
3666		}
3667		conversation.clearMessages();
3668		conversation.setHasMessagesLeftOnServer(false); //avoid messages getting loaded through mam
3669		conversation.setLastClearHistory(clearDate, reference);
3670		Runnable runnable = new Runnable() {
3671			@Override
3672			public void run() {
3673				databaseBackend.deleteMessagesInConversation(conversation);
3674				databaseBackend.updateConversation(conversation);
3675			}
3676		};
3677		mDatabaseWriterExecutor.execute(runnable);
3678	}
3679
3680	public boolean sendBlockRequest(final Blockable blockable, boolean reportSpam) {
3681		if (blockable != null && blockable.getBlockedJid() != null) {
3682			final Jid jid = blockable.getBlockedJid();
3683			this.sendIqPacket(blockable.getAccount(), getIqGenerator().generateSetBlockRequest(jid, reportSpam), new OnIqPacketReceived() {
3684
3685				@Override
3686				public void onIqPacketReceived(final Account account, final IqPacket packet) {
3687					if (packet.getType() == IqPacket.TYPE.RESULT) {
3688						account.getBlocklist().add(jid);
3689						updateBlocklistUi(OnUpdateBlocklist.Status.BLOCKED);
3690					}
3691				}
3692			});
3693			if (removeBlockedConversations(blockable.getAccount(), jid)) {
3694				updateConversationUi();
3695				return true;
3696			} else {
3697				return false;
3698			}
3699		} else {
3700			return false;
3701		}
3702	}
3703
3704	public boolean removeBlockedConversations(final Account account, final Jid blockedJid) {
3705		boolean removed = false;
3706		synchronized (this.conversations) {
3707			boolean domainJid = blockedJid.isDomainJid();
3708			for (Conversation conversation : this.conversations) {
3709				boolean jidMatches = (domainJid && blockedJid.getDomainpart().equals(conversation.getJid().getDomainpart()))
3710						|| blockedJid.equals(conversation.getJid().toBareJid());
3711				if (conversation.getAccount() == account
3712						&& conversation.getMode() == Conversation.MODE_SINGLE
3713						&& jidMatches) {
3714					this.conversations.remove(conversation);
3715					markRead(conversation);
3716					conversation.setStatus(Conversation.STATUS_ARCHIVED);
3717					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": archiving conversation " + conversation.getJid().toBareJid() + " because jid was blocked");
3718					updateConversation(conversation);
3719					removed = true;
3720				}
3721			}
3722		}
3723		return removed;
3724	}
3725
3726	public void sendUnblockRequest(final Blockable blockable) {
3727		if (blockable != null && blockable.getJid() != null) {
3728			final Jid jid = blockable.getBlockedJid();
3729			this.sendIqPacket(blockable.getAccount(), getIqGenerator().generateSetUnblockRequest(jid), new OnIqPacketReceived() {
3730				@Override
3731				public void onIqPacketReceived(final Account account, final IqPacket packet) {
3732					if (packet.getType() == IqPacket.TYPE.RESULT) {
3733						account.getBlocklist().remove(jid);
3734						updateBlocklistUi(OnUpdateBlocklist.Status.UNBLOCKED);
3735					}
3736				}
3737			});
3738		}
3739	}
3740
3741	public void publishDisplayName(Account account) {
3742		String displayName = account.getDisplayName();
3743		if (displayName != null && !displayName.isEmpty()) {
3744			IqPacket publish = mIqGenerator.publishNick(displayName);
3745			sendIqPacket(account, publish, new OnIqPacketReceived() {
3746				@Override
3747				public void onIqPacketReceived(Account account, IqPacket packet) {
3748					if (packet.getType() == IqPacket.TYPE.ERROR) {
3749						Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": could not publish nick");
3750					}
3751				}
3752			});
3753		}
3754	}
3755
3756	public ServiceDiscoveryResult getCachedServiceDiscoveryResult(Pair<String, String> key) {
3757		ServiceDiscoveryResult result = discoCache.get(key);
3758		if (result != null) {
3759			return result;
3760		} else {
3761			result = databaseBackend.findDiscoveryResult(key.first, key.second);
3762			if (result != null) {
3763				discoCache.put(key, result);
3764			}
3765			return result;
3766		}
3767	}
3768
3769	public void fetchCaps(Account account, final Jid jid, final Presence presence) {
3770		final Pair<String, String> key = new Pair<>(presence.getHash(), presence.getVer());
3771		ServiceDiscoveryResult disco = getCachedServiceDiscoveryResult(key);
3772		if (disco != null) {
3773			presence.setServiceDiscoveryResult(disco);
3774		} else {
3775			if (!account.inProgressDiscoFetches.contains(key)) {
3776				account.inProgressDiscoFetches.add(key);
3777				IqPacket request = new IqPacket(IqPacket.TYPE.GET);
3778				request.setTo(jid);
3779				request.query("http://jabber.org/protocol/disco#info");
3780				Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": making disco request for " + key.second + " to " + jid);
3781				sendIqPacket(account, request, new OnIqPacketReceived() {
3782					@Override
3783					public void onIqPacketReceived(Account account, IqPacket discoPacket) {
3784						if (discoPacket.getType() == IqPacket.TYPE.RESULT) {
3785							ServiceDiscoveryResult disco = new ServiceDiscoveryResult(discoPacket);
3786							if (presence.getVer().equals(disco.getVer())) {
3787								databaseBackend.insertDiscoveryResult(disco);
3788								injectServiceDiscorveryResult(account.getRoster(), presence.getHash(), presence.getVer(), disco);
3789							} else {
3790								Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": mismatch in caps for contact " + jid + " " + presence.getVer() + " vs " + disco.getVer());
3791							}
3792						}
3793						account.inProgressDiscoFetches.remove(key);
3794					}
3795				});
3796			}
3797		}
3798	}
3799
3800	private void injectServiceDiscorveryResult(Roster roster, String hash, String ver, ServiceDiscoveryResult disco) {
3801		for (Contact contact : roster.getContacts()) {
3802			for (Presence presence : contact.getPresences().getPresences().values()) {
3803				if (hash.equals(presence.getHash()) && ver.equals(presence.getVer())) {
3804					presence.setServiceDiscoveryResult(disco);
3805				}
3806			}
3807		}
3808	}
3809
3810	public void fetchMamPreferences(Account account, final OnMamPreferencesFetched callback) {
3811		final boolean legacy = account.getXmppConnection().getFeatures().mamLegacy();
3812		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
3813		request.addChild("prefs", legacy ? Namespace.MAM_LEGACY : Namespace.MAM);
3814		sendIqPacket(account, request, new OnIqPacketReceived() {
3815			@Override
3816			public void onIqPacketReceived(Account account, IqPacket packet) {
3817				Element prefs = packet.findChild("prefs", legacy ? Namespace.MAM_LEGACY : Namespace.MAM);
3818				if (packet.getType() == IqPacket.TYPE.RESULT && prefs != null) {
3819					callback.onPreferencesFetched(prefs);
3820				} else {
3821					callback.onPreferencesFetchFailed();
3822				}
3823			}
3824		});
3825	}
3826
3827	public PushManagementService getPushManagementService() {
3828		return mPushManagementService;
3829	}
3830
3831	public Account getPendingAccount() {
3832		Account pending = null;
3833		for (Account account : getAccounts()) {
3834			if (account.isOptionSet(Account.OPTION_REGISTER)) {
3835				pending = account;
3836			} else {
3837				return null;
3838			}
3839		}
3840		return pending;
3841	}
3842
3843	public void changeStatus(Account account, Presence.Status status, String statusMessage, boolean send) {
3844		if (!statusMessage.isEmpty()) {
3845			databaseBackend.insertPresenceTemplate(new PresenceTemplate(status, statusMessage));
3846		}
3847		changeStatusReal(account, status, statusMessage, send);
3848	}
3849
3850	private void changeStatusReal(Account account, Presence.Status status, String statusMessage, boolean send) {
3851		account.setPresenceStatus(status);
3852		account.setPresenceStatusMessage(statusMessage);
3853		databaseBackend.updateAccount(account);
3854		if (account.isEnabled() && send) {
3855			sendPresence(account);
3856		}
3857	}
3858
3859	public void changeStatus(Presence.Status status, String statusMessage) {
3860		if (!statusMessage.isEmpty()) {
3861			databaseBackend.insertPresenceTemplate(new PresenceTemplate(status, statusMessage));
3862		}
3863		for (Account account : getAccounts()) {
3864			changeStatusReal(account, status, statusMessage, true);
3865		}
3866	}
3867
3868	public List<PresenceTemplate> getPresenceTemplates(Account account) {
3869		List<PresenceTemplate> templates = databaseBackend.getPresenceTemplates();
3870		for (PresenceTemplate template : account.getSelfContact().getPresences().asTemplates()) {
3871			if (!templates.contains(template)) {
3872				templates.add(0, template);
3873			}
3874		}
3875		return templates;
3876	}
3877
3878	public void saveConversationAsBookmark(Conversation conversation, String name) {
3879		Account account = conversation.getAccount();
3880		Bookmark bookmark = new Bookmark(account, conversation.getJid().toBareJid());
3881		if (!conversation.getJid().isBareJid()) {
3882			bookmark.setNick(conversation.getJid().getResourcepart());
3883		}
3884		if (name != null && !name.trim().isEmpty()) {
3885			bookmark.setBookmarkName(name.trim());
3886		}
3887		bookmark.setAutojoin(getPreferences().getBoolean("autojoin", getResources().getBoolean(R.bool.autojoin)));
3888		account.getBookmarks().add(bookmark);
3889		pushBookmarks(account);
3890		conversation.setBookmark(bookmark);
3891	}
3892
3893	public boolean verifyFingerprints(Contact contact, List<XmppUri.Fingerprint> fingerprints) {
3894		boolean needsRosterWrite = false;
3895		boolean performedVerification = false;
3896		final AxolotlService axolotlService = contact.getAccount().getAxolotlService();
3897		for (XmppUri.Fingerprint fp : fingerprints) {
3898			if (fp.type == XmppUri.FingerprintType.OTR) {
3899				performedVerification |= contact.addOtrFingerprint(fp.fingerprint);
3900				needsRosterWrite |= performedVerification;
3901			} else if (fp.type == XmppUri.FingerprintType.OMEMO) {
3902				String fingerprint = "05" + fp.fingerprint.replaceAll("\\s", "");
3903				FingerprintStatus fingerprintStatus = axolotlService.getFingerprintTrust(fingerprint);
3904				if (fingerprintStatus != null) {
3905					if (!fingerprintStatus.isVerified()) {
3906						performedVerification = true;
3907						axolotlService.setFingerprintTrust(fingerprint, fingerprintStatus.toVerified());
3908					}
3909				} else {
3910					axolotlService.preVerifyFingerprint(contact, fingerprint);
3911				}
3912			}
3913		}
3914		if (needsRosterWrite) {
3915			syncRosterToDisk(contact.getAccount());
3916		}
3917		return performedVerification;
3918	}
3919
3920	public boolean verifyFingerprints(Account account, List<XmppUri.Fingerprint> fingerprints) {
3921		final AxolotlService axolotlService = account.getAxolotlService();
3922		boolean verifiedSomething = false;
3923		for (XmppUri.Fingerprint fp : fingerprints) {
3924			if (fp.type == XmppUri.FingerprintType.OMEMO) {
3925				String fingerprint = "05" + fp.fingerprint.replaceAll("\\s", "");
3926				Log.d(Config.LOGTAG, "trying to verify own fp=" + fingerprint);
3927				FingerprintStatus fingerprintStatus = axolotlService.getFingerprintTrust(fingerprint);
3928				if (fingerprintStatus != null) {
3929					if (!fingerprintStatus.isVerified()) {
3930						axolotlService.setFingerprintTrust(fingerprint, fingerprintStatus.toVerified());
3931						verifiedSomething = true;
3932					}
3933				} else {
3934					axolotlService.preVerifyFingerprint(account, fingerprint);
3935					verifiedSomething = true;
3936				}
3937			}
3938		}
3939		return verifiedSomething;
3940	}
3941
3942	public boolean blindTrustBeforeVerification() {
3943		return getBooleanPreference(SettingsActivity.BLIND_TRUST_BEFORE_VERIFICATION, R.bool.btbv);
3944	}
3945
3946	public ShortcutService getShortcutService() {
3947		return mShortcutService;
3948	}
3949
3950	public interface OnMamPreferencesFetched {
3951		void onPreferencesFetched(Element prefs);
3952
3953		void onPreferencesFetchFailed();
3954	}
3955
3956	public void pushMamPreferences(Account account, Element prefs) {
3957		IqPacket set = new IqPacket(IqPacket.TYPE.SET);
3958		set.addChild(prefs);
3959		sendIqPacket(account, set, null);
3960	}
3961
3962	public interface OnAccountCreated {
3963		void onAccountCreated(Account account);
3964
3965		void informUser(int r);
3966	}
3967
3968	public interface OnMoreMessagesLoaded {
3969		void onMoreMessagesLoaded(int count, Conversation conversation);
3970
3971		void informUser(int r);
3972	}
3973
3974	public interface OnAccountPasswordChanged {
3975		void onPasswordChangeSucceeded();
3976
3977		void onPasswordChangeFailed();
3978	}
3979
3980	public interface OnAffiliationChanged {
3981		void onAffiliationChangedSuccessful(Jid jid);
3982
3983		void onAffiliationChangeFailed(Jid jid, int resId);
3984	}
3985
3986	public interface OnRoleChanged {
3987		void onRoleChangedSuccessful(String nick);
3988
3989		void onRoleChangeFailed(String nick, int resid);
3990	}
3991
3992	public interface OnConversationUpdate {
3993		void onConversationUpdate();
3994	}
3995
3996	public interface OnAccountUpdate {
3997		void onAccountUpdate();
3998	}
3999
4000	public interface OnCaptchaRequested {
4001		void onCaptchaRequested(Account account,
4002		                        String id,
4003		                        Data data,
4004		                        Bitmap captcha);
4005	}
4006
4007	public interface OnRosterUpdate {
4008		void onRosterUpdate();
4009	}
4010
4011	public interface OnMucRosterUpdate {
4012		void onMucRosterUpdate();
4013	}
4014
4015	public interface OnConferenceConfigurationFetched {
4016		void onConferenceConfigurationFetched(Conversation conversation);
4017
4018		void onFetchFailed(Conversation conversation, Element error);
4019	}
4020
4021	public interface OnConferenceJoined {
4022		void onConferenceJoined(Conversation conversation);
4023	}
4024
4025	public interface OnConfigurationPushed {
4026		void onPushSucceeded();
4027
4028		void onPushFailed();
4029	}
4030
4031	public interface OnShowErrorToast {
4032		void onShowErrorToast(int resId);
4033	}
4034
4035	public class XmppConnectionBinder extends Binder {
4036		public XmppConnectionService getService() {
4037			return XmppConnectionService.this;
4038		}
4039	}
4040}