XmppConnectionService.java

   1package eu.siacs.conversations.services;
   2
   3import android.annotation.SuppressLint;
   4import android.app.AlarmManager;
   5import android.app.PendingIntent;
   6import android.app.Service;
   7import android.content.Context;
   8import android.content.Intent;
   9import android.content.IntentFilter;
  10import android.content.SharedPreferences;
  11import android.database.ContentObserver;
  12import android.graphics.Bitmap;
  13import android.media.AudioManager;
  14import android.net.ConnectivityManager;
  15import android.net.NetworkInfo;
  16import android.net.Uri;
  17import android.os.Binder;
  18import android.os.Build;
  19import android.os.Bundle;
  20import android.os.FileObserver;
  21import android.os.IBinder;
  22import android.os.Looper;
  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.security.KeyChainException;
  30import android.util.Log;
  31import android.util.LruCache;
  32
  33import net.java.otr4j.OtrException;
  34import net.java.otr4j.session.Session;
  35import net.java.otr4j.session.SessionID;
  36import net.java.otr4j.session.SessionImpl;
  37import net.java.otr4j.session.SessionStatus;
  38
  39import org.bouncycastle.asn1.x500.RDN;
  40import org.bouncycastle.asn1.x500.X500Name;
  41import org.bouncycastle.asn1.x500.style.BCStyle;
  42import org.bouncycastle.asn1.x500.style.IETFUtils;
  43import org.bouncycastle.cert.jcajce.JcaX509CertificateHolder;
  44import org.bouncycastle.jce.PrincipalUtil;
  45import org.bouncycastle.jce.X509Principal;
  46import org.openintents.openpgp.util.OpenPgpApi;
  47import org.openintents.openpgp.util.OpenPgpServiceConnection;
  48
  49import java.math.BigInteger;
  50import java.security.PrivateKey;
  51import java.security.SecureRandom;
  52import java.security.cert.CertificateEncodingException;
  53import java.security.cert.CertificateParsingException;
  54import java.security.cert.X509Certificate;
  55import java.util.ArrayList;
  56import java.util.Arrays;
  57import java.util.Collection;
  58import java.util.Collections;
  59import java.util.Comparator;
  60import java.util.Hashtable;
  61import java.util.Iterator;
  62import java.util.List;
  63import java.util.Locale;
  64import java.util.Map;
  65import java.util.concurrent.CopyOnWriteArrayList;
  66
  67import de.duenndns.ssl.MemorizingTrustManager;
  68import eu.siacs.conversations.Config;
  69import eu.siacs.conversations.R;
  70import eu.siacs.conversations.crypto.PgpEngine;
  71import eu.siacs.conversations.crypto.axolotl.XmppAxolotlMessage;
  72import eu.siacs.conversations.entities.Account;
  73import eu.siacs.conversations.entities.Blockable;
  74import eu.siacs.conversations.entities.Bookmark;
  75import eu.siacs.conversations.entities.Contact;
  76import eu.siacs.conversations.entities.Conversation;
  77import eu.siacs.conversations.entities.Message;
  78import eu.siacs.conversations.entities.MucOptions;
  79import eu.siacs.conversations.entities.MucOptions.OnRenameListener;
  80import eu.siacs.conversations.entities.Presences;
  81import eu.siacs.conversations.entities.Transferable;
  82import eu.siacs.conversations.entities.TransferablePlaceholder;
  83import eu.siacs.conversations.generator.IqGenerator;
  84import eu.siacs.conversations.generator.MessageGenerator;
  85import eu.siacs.conversations.generator.PresenceGenerator;
  86import eu.siacs.conversations.http.HttpConnectionManager;
  87import eu.siacs.conversations.parser.IqParser;
  88import eu.siacs.conversations.parser.MessageParser;
  89import eu.siacs.conversations.parser.PresenceParser;
  90import eu.siacs.conversations.persistance.DatabaseBackend;
  91import eu.siacs.conversations.persistance.FileBackend;
  92import eu.siacs.conversations.ui.UiCallback;
  93import eu.siacs.conversations.utils.CryptoHelper;
  94import eu.siacs.conversations.utils.ExceptionHelper;
  95import eu.siacs.conversations.utils.OnPhoneContactsLoadedListener;
  96import eu.siacs.conversations.utils.PRNGFixes;
  97import eu.siacs.conversations.utils.PhoneHelper;
  98import eu.siacs.conversations.utils.SerialSingleThreadExecutor;
  99import eu.siacs.conversations.utils.Xmlns;
 100import eu.siacs.conversations.xml.Element;
 101import eu.siacs.conversations.xmpp.OnBindListener;
 102import eu.siacs.conversations.xmpp.OnContactStatusChanged;
 103import eu.siacs.conversations.xmpp.OnIqPacketReceived;
 104import eu.siacs.conversations.xmpp.OnKeyStatusUpdated;
 105import eu.siacs.conversations.xmpp.OnMessageAcknowledged;
 106import eu.siacs.conversations.xmpp.OnMessagePacketReceived;
 107import eu.siacs.conversations.xmpp.OnPresencePacketReceived;
 108import eu.siacs.conversations.xmpp.OnStatusChanged;
 109import eu.siacs.conversations.xmpp.OnUpdateBlocklist;
 110import eu.siacs.conversations.xmpp.XmppConnection;
 111import eu.siacs.conversations.xmpp.chatstate.ChatState;
 112import eu.siacs.conversations.xmpp.forms.Data;
 113import eu.siacs.conversations.xmpp.forms.Field;
 114import eu.siacs.conversations.xmpp.jid.InvalidJidException;
 115import eu.siacs.conversations.xmpp.jid.Jid;
 116import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
 117import eu.siacs.conversations.xmpp.jingle.OnJinglePacketReceived;
 118import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
 119import eu.siacs.conversations.xmpp.pep.Avatar;
 120import eu.siacs.conversations.xmpp.stanzas.IqPacket;
 121import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
 122import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
 123import me.leolin.shortcutbadger.ShortcutBadger;
 124
 125public class XmppConnectionService extends Service implements OnPhoneContactsLoadedListener {
 126
 127	public static final String ACTION_CLEAR_NOTIFICATION = "clear_notification";
 128	public static final String ACTION_DISABLE_FOREGROUND = "disable_foreground";
 129	private static final String ACTION_MERGE_PHONE_CONTACTS = "merge_phone_contacts";
 130	public static final String ACTION_TRY_AGAIN = "try_again";
 131	public static final String ACTION_DISABLE_ACCOUNT = "disable_account";
 132	private ContentObserver contactObserver = new ContentObserver(null) {
 133		@Override
 134		public void onChange(boolean selfChange) {
 135			super.onChange(selfChange);
 136			Intent intent = new Intent(getApplicationContext(),
 137					XmppConnectionService.class);
 138			intent.setAction(ACTION_MERGE_PHONE_CONTACTS);
 139			startService(intent);
 140		}
 141	};
 142
 143	private final SerialSingleThreadExecutor mFileAddingExecutor = new SerialSingleThreadExecutor();
 144	private final SerialSingleThreadExecutor mDatabaseExecutor = new SerialSingleThreadExecutor();
 145
 146	private final IBinder mBinder = new XmppConnectionBinder();
 147	private final List<Conversation> conversations = new CopyOnWriteArrayList<>();
 148	private final FileObserver fileObserver = new FileObserver(
 149			FileBackend.getConversationsImageDirectory()) {
 150
 151		@Override
 152		public void onEvent(int event, String path) {
 153			if (event == FileObserver.DELETE) {
 154				markFileDeleted(path.split("\\.")[0]);
 155			}
 156		}
 157	};
 158	private final OnJinglePacketReceived jingleListener = new OnJinglePacketReceived() {
 159
 160		@Override
 161		public void onJinglePacketReceived(Account account, JinglePacket packet) {
 162			mJingleConnectionManager.deliverPacket(account, packet);
 163		}
 164	};
 165	private final OnBindListener mOnBindListener = new OnBindListener() {
 166
 167		@Override
 168		public void onBind(final Account account) {
 169			account.getRoster().clearPresences();
 170			fetchRosterFromServer(account);
 171			fetchBookmarks(account);
 172			sendPresence(account);
 173			connectMultiModeConversations(account);
 174			mMessageArchiveService.executePendingQueries(account);
 175			mJingleConnectionManager.cancelInTransmission();
 176			syncDirtyContacts(account);
 177			account.getAxolotlService().publishBundlesIfNeeded(true);
 178		}
 179	};
 180	private final OnMessageAcknowledged mOnMessageAcknowledgedListener = new OnMessageAcknowledged() {
 181
 182		@Override
 183		public void onMessageAcknowledged(Account account, String uuid) {
 184			for (final Conversation conversation : getConversations()) {
 185				if (conversation.getAccount() == account) {
 186					Message message = conversation.findUnsentMessageWithUuid(uuid);
 187					if (message != null) {
 188						markMessage(message, Message.STATUS_SEND);
 189						if (conversation.setLastMessageTransmitted(System.currentTimeMillis())) {
 190							databaseBackend.updateConversation(conversation);
 191						}
 192					}
 193				}
 194			}
 195		}
 196	};
 197	private final IqGenerator mIqGenerator = new IqGenerator(this);
 198	public DatabaseBackend databaseBackend;
 199	public OnContactStatusChanged onContactStatusChanged = new OnContactStatusChanged() {
 200
 201		@Override
 202		public void onContactStatusChanged(Contact contact, boolean online) {
 203			Conversation conversation = find(getConversations(), contact);
 204			if (conversation != null) {
 205				if (online) {
 206					conversation.endOtrIfNeeded();
 207					if (contact.getPresences().size() == 1) {
 208						sendUnsentMessages(conversation);
 209					}
 210				} else {
 211					if (contact.getPresences().size() >= 1) {
 212						if (conversation.hasValidOtrSession()) {
 213							String otrResource = conversation.getOtrSession().getSessionID().getUserID();
 214							if (!(Arrays.asList(contact.getPresences().asStringArray()).contains(otrResource))) {
 215								conversation.endOtrIfNeeded();
 216							}
 217						}
 218					} else {
 219						conversation.endOtrIfNeeded();
 220					}
 221				}
 222			}
 223		}
 224	};
 225	private FileBackend fileBackend = new FileBackend(this);
 226	private MemorizingTrustManager mMemorizingTrustManager;
 227	private NotificationService mNotificationService = new NotificationService(
 228			this);
 229	private OnMessagePacketReceived mMessageParser = new MessageParser(this);
 230	private OnPresencePacketReceived mPresenceParser = new PresenceParser(this);
 231	private IqParser mIqParser = new IqParser(this);
 232	private OnIqPacketReceived mDefaultIqHandler = new OnIqPacketReceived() {
 233		@Override
 234		public void onIqPacketReceived(Account account, IqPacket packet) {
 235			if (packet.getType() != IqPacket.TYPE.RESULT) {
 236				Element error = packet.findChild("error");
 237				String text = error != null ? error.findChildContent("text") : null;
 238				if (text != null) {
 239					Log.d(Config.LOGTAG,account.getJid().toBareJid()+": received iq error - "+text);
 240				}
 241			}
 242		}
 243	};
 244	private MessageGenerator mMessageGenerator = new MessageGenerator(this);
 245	private PresenceGenerator mPresenceGenerator = new PresenceGenerator(this);
 246	private List<Account> accounts;
 247	private JingleConnectionManager mJingleConnectionManager = new JingleConnectionManager(
 248			this);
 249	private HttpConnectionManager mHttpConnectionManager = new HttpConnectionManager(
 250			this);
 251	private AvatarService mAvatarService = new AvatarService(this);
 252	private final List<String> mInProgressAvatarFetches = new ArrayList<>();
 253	private MessageArchiveService mMessageArchiveService = new MessageArchiveService(this);
 254	private OnConversationUpdate mOnConversationUpdate = null;
 255	private int convChangedListenerCount = 0;
 256	private OnShowErrorToast mOnShowErrorToast = null;
 257	private int showErrorToastListenerCount = 0;
 258	private int unreadCount = -1;
 259	private OnAccountUpdate mOnAccountUpdate = null;
 260	private OnStatusChanged statusListener = new OnStatusChanged() {
 261
 262		@Override
 263		public void onStatusChanged(Account account) {
 264			XmppConnection connection = account.getXmppConnection();
 265			if (mOnAccountUpdate != null) {
 266				mOnAccountUpdate.onAccountUpdate();
 267			}
 268			if (account.getStatus() == Account.State.ONLINE) {
 269				if (connection != null && connection.getFeatures().csi()) {
 270					if (checkListeners()) {
 271						Log.d(Config.LOGTAG, account.getJid().toBareJid()+ " sending csi//inactive");
 272						connection.sendInactive();
 273					} else {
 274						Log.d(Config.LOGTAG, account.getJid().toBareJid()+ " sending csi//active");
 275						connection.sendActive();
 276					}
 277				}
 278				List<Conversation> conversations = getConversations();
 279				for (Conversation conversation : conversations) {
 280					if (conversation.getAccount() == account) {
 281						conversation.startOtrIfNeeded();
 282						sendUnsentMessages(conversation);
 283					}
 284				}
 285				for (Conversation conversation : account.pendingConferenceLeaves) {
 286					leaveMuc(conversation);
 287				}
 288				account.pendingConferenceLeaves.clear();
 289				for (Conversation conversation : account.pendingConferenceJoins) {
 290					joinMuc(conversation);
 291				}
 292				account.pendingConferenceJoins.clear();
 293				scheduleWakeUpCall(Config.PING_MAX_INTERVAL, account.getUuid().hashCode());
 294			} else if (account.getStatus() == Account.State.OFFLINE) {
 295				resetSendingToWaiting(account);
 296				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 297					int timeToReconnect = mRandom.nextInt(20) + 10;
 298					scheduleWakeUpCall(timeToReconnect,account.getUuid().hashCode());
 299				}
 300			} else if (account.getStatus() == Account.State.REGISTRATION_SUCCESSFUL) {
 301				databaseBackend.updateAccount(account);
 302				reconnectAccount(account, true, false);
 303			} else if ((account.getStatus() != Account.State.CONNECTING)
 304					&& (account.getStatus() != Account.State.NO_INTERNET)) {
 305				if (connection != null) {
 306					int next = connection.getTimeToNextAttempt();
 307					Log.d(Config.LOGTAG, account.getJid().toBareJid()
 308							+ ": error connecting account. try again in "
 309							+ next + "s for the "
 310							+ (connection.getAttempt() + 1) + " time");
 311					scheduleWakeUpCall(next,account.getUuid().hashCode());
 312				}
 313					}
 314			getNotificationService().updateErrorNotification();
 315		}
 316	};
 317	private int accountChangedListenerCount = 0;
 318	private OnRosterUpdate mOnRosterUpdate = null;
 319	private OnUpdateBlocklist mOnUpdateBlocklist = null;
 320	private int updateBlocklistListenerCount = 0;
 321	private int rosterChangedListenerCount = 0;
 322	private OnMucRosterUpdate mOnMucRosterUpdate = null;
 323	private int mucRosterChangedListenerCount = 0;
 324	private OnKeyStatusUpdated mOnKeyStatusUpdated = null;
 325	private int keyStatusUpdatedListenerCount = 0;
 326	private SecureRandom mRandom;
 327	private OpenPgpServiceConnection pgpServiceConnection;
 328	private PgpEngine mPgpEngine = null;
 329	private WakeLock wakeLock;
 330	private PowerManager pm;
 331	private LruCache<String, Bitmap> mBitmapCache;
 332	private Thread mPhoneContactMergerThread;
 333	private EventReceiver mEventReceiver = new EventReceiver();
 334
 335	private boolean mRestoredFromDatabase = false;
 336	public boolean areMessagesInitialized() {
 337		return this.mRestoredFromDatabase;
 338	}
 339
 340	public PgpEngine getPgpEngine() {
 341		if (pgpServiceConnection.isBound()) {
 342			if (this.mPgpEngine == null) {
 343				this.mPgpEngine = new PgpEngine(new OpenPgpApi(
 344							getApplicationContext(),
 345							pgpServiceConnection.getService()), this);
 346			}
 347			return mPgpEngine;
 348		} else {
 349			return null;
 350		}
 351
 352	}
 353
 354	public FileBackend getFileBackend() {
 355		return this.fileBackend;
 356	}
 357
 358	public AvatarService getAvatarService() {
 359		return this.mAvatarService;
 360	}
 361
 362	public void attachLocationToConversation(final Conversation conversation,
 363											 final Uri uri,
 364											 final UiCallback<Message> callback) {
 365		int encryption = conversation.getNextEncryption();
 366		if (encryption == Message.ENCRYPTION_PGP) {
 367			encryption = Message.ENCRYPTION_DECRYPTED;
 368		}
 369		Message message = new Message(conversation,uri.toString(),encryption);
 370		if (conversation.getNextCounterpart() != null) {
 371			message.setCounterpart(conversation.getNextCounterpart());
 372		}
 373		if (encryption == Message.ENCRYPTION_DECRYPTED) {
 374			getPgpEngine().encrypt(message, callback);
 375		} else {
 376			callback.success(message);
 377		}
 378	}
 379
 380	public void attachFileToConversation(final Conversation conversation,
 381			final Uri uri,
 382			final UiCallback<Message> callback) {
 383		final Message message;
 384		if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 385			message = new Message(conversation, "", Message.ENCRYPTION_DECRYPTED);
 386		} else {
 387			message = new Message(conversation, "", conversation.getNextEncryption());
 388		}
 389		message.setCounterpart(conversation.getNextCounterpart());
 390		message.setType(Message.TYPE_FILE);
 391		String path = getFileBackend().getOriginalPath(uri);
 392		if (path!=null) {
 393			message.setRelativeFilePath(path);
 394			getFileBackend().updateFileParams(message);
 395			if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 396				getPgpEngine().encrypt(message, callback);
 397			} else {
 398				callback.success(message);
 399			}
 400		} else {
 401			mFileAddingExecutor.execute(new Runnable() {
 402				@Override
 403				public void run() {
 404					try {
 405						getFileBackend().copyFileToPrivateStorage(message, uri);
 406						getFileBackend().updateFileParams(message);
 407						if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 408							getPgpEngine().encrypt(message, callback);
 409						} else {
 410							callback.success(message);
 411						}
 412					} catch (FileBackend.FileCopyException e) {
 413						callback.error(e.getResId(), message);
 414					}
 415				}
 416			});
 417		}
 418	}
 419
 420	public void attachImageToConversation(final Conversation conversation, final Uri uri, final UiCallback<Message> callback) {
 421		if (getFileBackend().useImageAsIs(uri)) {
 422			Log.d(Config.LOGTAG,"using image as is");
 423			attachFileToConversation(conversation, uri, callback);
 424			return;
 425		}
 426		final Message message;
 427		if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 428			message = new Message(conversation, "", Message.ENCRYPTION_DECRYPTED);
 429		} else {
 430			message = new Message(conversation, "",conversation.getNextEncryption());
 431		}
 432		message.setCounterpart(conversation.getNextCounterpart());
 433		message.setType(Message.TYPE_IMAGE);
 434		mFileAddingExecutor.execute(new Runnable() {
 435
 436			@Override
 437			public void run() {
 438				try {
 439					getFileBackend().copyImageToPrivateStorage(message, uri);
 440					if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 441						getPgpEngine().encrypt(message, callback);
 442					} else {
 443						callback.success(message);
 444					}
 445				} catch (final FileBackend.FileCopyException e) {
 446					callback.error(e.getResId(), message);
 447				}
 448			}
 449		});
 450	}
 451
 452	public Conversation find(Bookmark bookmark) {
 453		return find(bookmark.getAccount(), bookmark.getJid());
 454	}
 455
 456	public Conversation find(final Account account, final Jid jid) {
 457		return find(getConversations(), account, jid);
 458	}
 459
 460	@Override
 461	public int onStartCommand(Intent intent, int flags, int startId) {
 462		final String action = intent == null ? null : intent.getAction();
 463		boolean interactive = false;
 464		if (action != null) {
 465			Log.d(Config.LOGTAG,"action: "+action);
 466			switch (action) {
 467				case ConnectivityManager.CONNECTIVITY_ACTION:
 468					if (hasInternetConnection() && Config.RESET_ATTEMPT_COUNT_ON_NETWORK_CHANGE) {
 469						resetAllAttemptCounts(true);
 470					}
 471					break;
 472				case ACTION_MERGE_PHONE_CONTACTS:
 473					if (mRestoredFromDatabase) {
 474						PhoneHelper.loadPhoneContacts(getApplicationContext(),
 475								new CopyOnWriteArrayList<Bundle>(),
 476								this);
 477					}
 478					return START_STICKY;
 479				case Intent.ACTION_SHUTDOWN:
 480					logoutAndSave();
 481					return START_NOT_STICKY;
 482				case ACTION_CLEAR_NOTIFICATION:
 483					mNotificationService.clear();
 484					break;
 485				case ACTION_DISABLE_FOREGROUND:
 486					getPreferences().edit().putBoolean("keep_foreground_service",false).commit();
 487					toggleForegroundService();
 488					break;
 489				case ACTION_TRY_AGAIN:
 490					resetAllAttemptCounts(false);
 491					interactive = true;
 492					break;
 493				case ACTION_DISABLE_ACCOUNT:
 494					try {
 495						String jid = intent.getStringExtra("account");
 496						Account account = jid == null ? null : findAccountByJid(Jid.fromString(jid));
 497						if (account != null) {
 498							account.setOption(Account.OPTION_DISABLED,true);
 499							updateAccount(account);
 500						}
 501					} catch (final InvalidJidException ignored) {
 502						break;
 503					}
 504					break;
 505				case AudioManager.RINGER_MODE_CHANGED_ACTION:
 506					if (xaOnSilentMode()) {
 507						refreshAllPresences();
 508					}
 509					break;
 510				case Intent.ACTION_SCREEN_OFF:
 511				case Intent.ACTION_SCREEN_ON:
 512					if (awayWhenScreenOff()) {
 513						refreshAllPresences();
 514					}
 515					break;
 516			}
 517		}
 518		this.wakeLock.acquire();
 519
 520		for (Account account : accounts) {
 521			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 522				if (!hasInternetConnection()) {
 523					account.setStatus(Account.State.NO_INTERNET);
 524					if (statusListener != null) {
 525						statusListener.onStatusChanged(account);
 526					}
 527				} else {
 528					if (account.getStatus() == Account.State.NO_INTERNET) {
 529						account.setStatus(Account.State.OFFLINE);
 530						if (statusListener != null) {
 531							statusListener.onStatusChanged(account);
 532						}
 533					}
 534					if (account.getStatus() == Account.State.ONLINE) {
 535						long lastReceived = account.getXmppConnection().getLastPacketReceived();
 536						long lastSent = account.getXmppConnection().getLastPingSent();
 537						long pingInterval = "ui".equals(action) ? Config.PING_MIN_INTERVAL * 1000 : Config.PING_MAX_INTERVAL * 1000;
 538						long msToNextPing = (Math.max(lastReceived,lastSent) + pingInterval) - SystemClock.elapsedRealtime();
 539						long pingTimeoutIn = (lastSent + Config.PING_TIMEOUT * 1000) - SystemClock.elapsedRealtime();
 540						if (lastSent > lastReceived) {
 541							if (pingTimeoutIn < 0) {
 542								Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": ping timeout");
 543								this.reconnectAccount(account, true, interactive);
 544							} else {
 545								int secs = (int) (pingTimeoutIn / 1000);
 546								this.scheduleWakeUpCall(secs,account.getUuid().hashCode());
 547							}
 548						} else if (msToNextPing <= 0) {
 549							account.getXmppConnection().sendPing();
 550							Log.d(Config.LOGTAG, account.getJid().toBareJid()+" send ping");
 551							this.scheduleWakeUpCall(Config.PING_TIMEOUT,account.getUuid().hashCode());
 552						} else {
 553							this.scheduleWakeUpCall((int) (msToNextPing / 1000), account.getUuid().hashCode());
 554						}
 555					} else if (account.getStatus() == Account.State.OFFLINE) {
 556						reconnectAccount(account,true, interactive);
 557					} else if (account.getStatus() == Account.State.CONNECTING) {
 558						long timeout = Config.CONNECT_TIMEOUT - ((SystemClock.elapsedRealtime() - account.getXmppConnection().getLastConnect()) / 1000);
 559						if (timeout < 0) {
 560							Log.d(Config.LOGTAG, account.getJid() + ": time out during connect reconnecting");
 561							reconnectAccount(account, true, interactive);
 562						} else {
 563							scheduleWakeUpCall((int) timeout,account.getUuid().hashCode());
 564						}
 565					} else {
 566						if (account.getXmppConnection().getTimeToNextAttempt() <= 0) {
 567							reconnectAccount(account, true, interactive);
 568						}
 569					}
 570
 571				}
 572				if (mOnAccountUpdate != null) {
 573					mOnAccountUpdate.onAccountUpdate();
 574				}
 575			}
 576		}
 577		if (wakeLock.isHeld()) {
 578			try {
 579				wakeLock.release();
 580			} catch (final RuntimeException ignored) {
 581			}
 582		}
 583		return START_STICKY;
 584	}
 585
 586	private boolean xaOnSilentMode() {
 587		return getPreferences().getBoolean("xa_on_silent_mode", false);
 588	}
 589
 590	private boolean awayWhenScreenOff() {
 591		return getPreferences().getBoolean("away_when_screen_off", false);
 592	}
 593
 594	private int getTargetPresence() {
 595		if (xaOnSilentMode() && isPhoneSilenced()) {
 596			return Presences.XA;
 597		} else if (awayWhenScreenOff() && !isInteractive()) {
 598			return Presences.AWAY;
 599		} else {
 600			return Presences.ONLINE;
 601		}
 602	}
 603
 604	@SuppressLint("NewApi")
 605	@SuppressWarnings("deprecation")
 606	public boolean isInteractive() {
 607		final PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 608
 609		final boolean isScreenOn;
 610		if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
 611			isScreenOn = pm.isScreenOn();
 612		} else {
 613			isScreenOn = pm.isInteractive();
 614		}
 615		return isScreenOn;
 616	}
 617
 618	private boolean isPhoneSilenced() {
 619		AudioManager audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
 620		return audioManager.getRingerMode() == AudioManager.RINGER_MODE_SILENT;
 621	}
 622
 623	private void resetAllAttemptCounts(boolean reallyAll) {
 624		Log.d(Config.LOGTAG,"resetting all attepmt counts");
 625		for(Account account : accounts) {
 626			if (account.hasErrorStatus() || reallyAll) {
 627				final XmppConnection connection = account.getXmppConnection();
 628				if (connection != null) {
 629					connection.resetAttemptCount();
 630				}
 631			}
 632		}
 633	}
 634
 635	public boolean hasInternetConnection() {
 636		ConnectivityManager cm = (ConnectivityManager) getApplicationContext()
 637			.getSystemService(Context.CONNECTIVITY_SERVICE);
 638		NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
 639		return activeNetwork != null && activeNetwork.isConnected();
 640	}
 641
 642	@SuppressLint("TrulyRandom")
 643	@Override
 644	public void onCreate() {
 645		ExceptionHelper.init(getApplicationContext());
 646		PRNGFixes.apply();
 647		this.mRandom = new SecureRandom();
 648		updateMemorizingTrustmanager();
 649		final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024);
 650		final int cacheSize = maxMemory / 8;
 651		this.mBitmapCache = new LruCache<String, Bitmap>(cacheSize) {
 652			@Override
 653			protected int sizeOf(final String key, final Bitmap bitmap) {
 654				return bitmap.getByteCount() / 1024;
 655			}
 656		};
 657
 658		this.databaseBackend = DatabaseBackend.getInstance(getApplicationContext());
 659		this.accounts = databaseBackend.getAccounts();
 660
 661		restoreFromDatabase();
 662
 663		getContentResolver().registerContentObserver(ContactsContract.Contacts.CONTENT_URI, true, contactObserver);
 664		this.fileObserver.startWatching();
 665
 666		this.pgpServiceConnection = new OpenPgpServiceConnection(getApplicationContext(), "org.sufficientlysecure.keychain");
 667		this.pgpServiceConnection.bindToService();
 668
 669		this.pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 670		this.wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,"XmppConnectionService");
 671		toggleForegroundService();
 672		updateUnreadCountBadge();
 673		toggleScreenEventReceiver();
 674	}
 675
 676	@Override
 677	public void onDestroy() {
 678		try {
 679			unregisterReceiver(this.mEventReceiver);
 680		} catch (IllegalArgumentException e) {
 681			//ignored
 682		}
 683		super.onDestroy();
 684	}
 685
 686	public void toggleScreenEventReceiver() {
 687		if (awayWhenScreenOff()) {
 688			final IntentFilter filter = new IntentFilter(Intent.ACTION_SCREEN_ON);
 689			filter.addAction(Intent.ACTION_SCREEN_OFF);
 690			registerReceiver(this.mEventReceiver, filter);
 691		} else {
 692			try {
 693				unregisterReceiver(this.mEventReceiver);
 694			} catch (IllegalArgumentException e) {
 695				//ignored
 696			}
 697		}
 698	}
 699
 700	public void toggleForegroundService() {
 701		if (getPreferences().getBoolean("keep_foreground_service", false)) {
 702			startForeground(NotificationService.FOREGROUND_NOTIFICATION_ID, this.mNotificationService.createForegroundNotification());
 703		} else {
 704			stopForeground(true);
 705		}
 706	}
 707
 708	@Override
 709	public void onTaskRemoved(final Intent rootIntent) {
 710		super.onTaskRemoved(rootIntent);
 711		if (!getPreferences().getBoolean("keep_foreground_service",false)) {
 712			this.logoutAndSave();
 713		}
 714	}
 715
 716	private void logoutAndSave() {
 717		for (final Account account : accounts) {
 718			databaseBackend.writeRoster(account.getRoster());
 719			if (account.getXmppConnection() != null) {
 720				disconnect(account, false);
 721			}
 722		}
 723		Context context = getApplicationContext();
 724		AlarmManager alarmManager = (AlarmManager) context
 725				.getSystemService(Context.ALARM_SERVICE);
 726		Intent intent = new Intent(context, EventReceiver.class);
 727		alarmManager.cancel(PendingIntent.getBroadcast(context, 0, intent, 0));
 728		Log.d(Config.LOGTAG, "good bye");
 729		stopSelf();
 730	}
 731
 732	protected void scheduleWakeUpCall(int seconds, int requestCode) {
 733		final long timeToWake = SystemClock.elapsedRealtime() + (seconds < 0 ? 1 : seconds + 1) * 1000;
 734
 735		Context context = getApplicationContext();
 736		AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
 737
 738		Intent intent = new Intent(context, EventReceiver.class);
 739		intent.setAction("ping");
 740		PendingIntent alarmIntent = PendingIntent.getBroadcast(context, requestCode, intent, 0);
 741		alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake, alarmIntent);
 742	}
 743
 744	public XmppConnection createConnection(final Account account) {
 745		final SharedPreferences sharedPref = getPreferences();
 746		account.setResource(sharedPref.getString("resource", "mobile")
 747				.toLowerCase(Locale.getDefault()));
 748		final XmppConnection connection = new XmppConnection(account, this);
 749		connection.setOnMessagePacketReceivedListener(this.mMessageParser);
 750		connection.setOnStatusChangedListener(this.statusListener);
 751		connection.setOnPresencePacketReceivedListener(this.mPresenceParser);
 752		connection.setOnUnregisteredIqPacketReceivedListener(this.mIqParser);
 753		connection.setOnJinglePacketReceivedListener(this.jingleListener);
 754		connection.setOnBindListener(this.mOnBindListener);
 755		connection.setOnMessageAcknowledgeListener(this.mOnMessageAcknowledgedListener);
 756		connection.addOnAdvancedStreamFeaturesAvailableListener(this.mMessageArchiveService);
 757		return connection;
 758	}
 759
 760	public void sendChatState(Conversation conversation) {
 761		if (sendChatStates()) {
 762			MessagePacket packet = mMessageGenerator.generateChatState(conversation);
 763			sendMessagePacket(conversation.getAccount(), packet);
 764		}
 765	}
 766
 767	private void sendFileMessage(final Message message, final boolean delay) {
 768		Log.d(Config.LOGTAG, "send file message");
 769		final Account account = message.getConversation().getAccount();
 770		final XmppConnection connection = account.getXmppConnection();
 771		if (connection != null && connection.getFeatures().httpUpload()) {
 772			mHttpConnectionManager.createNewUploadConnection(message, delay);
 773		} else {
 774			mJingleConnectionManager.createNewConnection(message);
 775		}
 776	}
 777
 778	public void sendMessage(final Message message) {
 779		sendMessage(message, false, false);
 780	}
 781
 782	private void sendMessage(final Message message, final boolean resend, final boolean delay) {
 783		final Account account = message.getConversation().getAccount();
 784		final Conversation conversation = message.getConversation();
 785		account.deactivateGracePeriod();
 786		MessagePacket packet = null;
 787		boolean saveInDb = true;
 788		message.setStatus(Message.STATUS_WAITING);
 789
 790		if (!resend && message.getEncryption() != Message.ENCRYPTION_OTR) {
 791			message.getConversation().endOtrIfNeeded();
 792			message.getConversation().findUnsentMessagesWithEncryption(Message.ENCRYPTION_OTR,
 793					new Conversation.OnMessageFound() {
 794				@Override
 795				public void onMessageFound(Message message) {
 796					markMessage(message,Message.STATUS_SEND_FAILED);
 797				}
 798			});
 799		}
 800
 801		if (account.isOnlineAndConnected()) {
 802			switch (message.getEncryption()) {
 803				case Message.ENCRYPTION_NONE:
 804					if (message.needsUploading()) {
 805						if (account.httpUploadAvailable() || message.fixCounterpart()) {
 806							this.sendFileMessage(message,delay);
 807						} else {
 808							break;
 809						}
 810					} else {
 811						packet = mMessageGenerator.generateChat(message);
 812					}
 813					break;
 814				case Message.ENCRYPTION_PGP:
 815				case Message.ENCRYPTION_DECRYPTED:
 816					if (message.needsUploading()) {
 817						if (account.httpUploadAvailable() || message.fixCounterpart()) {
 818							this.sendFileMessage(message,delay);
 819						} else {
 820							break;
 821						}
 822					} else {
 823						packet = mMessageGenerator.generatePgpChat(message);
 824					}
 825					break;
 826				case Message.ENCRYPTION_OTR:
 827					SessionImpl otrSession = conversation.getOtrSession();
 828					if (otrSession != null && otrSession.getSessionStatus() == SessionStatus.ENCRYPTED) {
 829						try {
 830							message.setCounterpart(Jid.fromSessionID(otrSession.getSessionID()));
 831						} catch (InvalidJidException e) {
 832							break;
 833						}
 834						if (message.needsUploading()) {
 835							mJingleConnectionManager.createNewConnection(message);
 836						} else {
 837							packet = mMessageGenerator.generateOtrChat(message);
 838						}
 839					} else if (otrSession == null) {
 840						if (message.fixCounterpart()) {
 841							conversation.startOtrSession(message.getCounterpart().getResourcepart(), true);
 842						} else {
 843							break;
 844						}
 845					}
 846					break;
 847				case Message.ENCRYPTION_AXOLOTL:
 848					message.setAxolotlFingerprint(account.getAxolotlService().getOwnFingerprint());
 849					if (message.needsUploading()) {
 850						if (account.httpUploadAvailable() || message.fixCounterpart()) {
 851							this.sendFileMessage(message,delay);
 852						} else {
 853							break;
 854						}
 855					} else {
 856						XmppAxolotlMessage axolotlMessage = account.getAxolotlService().fetchAxolotlMessageFromCache(message);
 857						if (axolotlMessage == null) {
 858							account.getAxolotlService().preparePayloadMessage(message, delay);
 859						} else {
 860							packet = mMessageGenerator.generateAxolotlChat(message, axolotlMessage);
 861						}
 862					}
 863					break;
 864
 865			}
 866			if (packet != null) {
 867				if (account.getXmppConnection().getFeatures().sm() || conversation.getMode() == Conversation.MODE_MULTI) {
 868					message.setStatus(Message.STATUS_UNSEND);
 869				} else {
 870					message.setStatus(Message.STATUS_SEND);
 871				}
 872			}
 873		} else {
 874			switch(message.getEncryption()) {
 875				case Message.ENCRYPTION_DECRYPTED:
 876					if (!message.needsUploading()) {
 877						String pgpBody = message.getEncryptedBody();
 878						String decryptedBody = message.getBody();
 879						message.setBody(pgpBody);
 880						message.setEncryption(Message.ENCRYPTION_PGP);
 881						databaseBackend.createMessage(message);
 882						saveInDb = false;
 883						message.setBody(decryptedBody);
 884						message.setEncryption(Message.ENCRYPTION_DECRYPTED);
 885					}
 886					break;
 887				case Message.ENCRYPTION_OTR:
 888					if (!conversation.hasValidOtrSession() && message.getCounterpart() != null) {
 889						conversation.startOtrSession(message.getCounterpart().getResourcepart(), false);
 890					}
 891					break;
 892				case Message.ENCRYPTION_AXOLOTL:
 893					message.setAxolotlFingerprint(account.getAxolotlService().getOwnFingerprint());
 894					break;
 895			}
 896		}
 897
 898		if (resend) {
 899			if (packet != null) {
 900				if (account.getXmppConnection().getFeatures().sm() || conversation.getMode() == Conversation.MODE_MULTI) {
 901					markMessage(message,Message.STATUS_UNSEND);
 902				} else {
 903					markMessage(message,Message.STATUS_SEND);
 904				}
 905			}
 906		} else {
 907			conversation.add(message);
 908			if (saveInDb && (message.getEncryption() == Message.ENCRYPTION_NONE || saveEncryptedMessages())) {
 909				databaseBackend.createMessage(message);
 910			}
 911			updateConversationUi();
 912		}
 913		if (packet != null) {
 914			if (delay) {
 915				mMessageGenerator.addDelay(packet,message.getTimeSent());
 916			}
 917			if (conversation.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
 918				if (this.sendChatStates()) {
 919					packet.addChild(ChatState.toElement(conversation.getOutgoingChatState()));
 920				}
 921			}
 922			sendMessagePacket(account, packet);
 923		}
 924	}
 925
 926	private void sendUnsentMessages(final Conversation conversation) {
 927		conversation.findWaitingMessages(new Conversation.OnMessageFound() {
 928
 929			@Override
 930			public void onMessageFound(Message message) {
 931				resendMessage(message, true);
 932			}
 933		});
 934	}
 935
 936	public void resendMessage(final Message message, final boolean delay) {
 937		sendMessage(message, true, delay);
 938	}
 939
 940	public void fetchRosterFromServer(final Account account) {
 941		final IqPacket iqPacket = new IqPacket(IqPacket.TYPE.GET);
 942		if (!"".equals(account.getRosterVersion())) {
 943			Log.d(Config.LOGTAG, account.getJid().toBareJid()
 944					+ ": fetching roster version " + account.getRosterVersion());
 945		} else {
 946			Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": fetching roster");
 947		}
 948		iqPacket.query(Xmlns.ROSTER).setAttribute("ver", account.getRosterVersion());
 949		sendIqPacket(account, iqPacket, mIqParser);
 950	}
 951
 952	public void fetchBookmarks(final Account account) {
 953		final IqPacket iqPacket = new IqPacket(IqPacket.TYPE.GET);
 954		final Element query = iqPacket.query("jabber:iq:private");
 955		query.addChild("storage", "storage:bookmarks");
 956		final OnIqPacketReceived callback = new OnIqPacketReceived() {
 957
 958			@Override
 959			public void onIqPacketReceived(final Account account, final IqPacket packet) {
 960				if (packet.getType() == IqPacket.TYPE.RESULT) {
 961					final Element query = packet.query();
 962					final List<Bookmark> bookmarks = new CopyOnWriteArrayList<>();
 963					final Element storage = query.findChild("storage", "storage:bookmarks");
 964					if (storage != null) {
 965						for (final Element item : storage.getChildren()) {
 966							if (item.getName().equals("conference")) {
 967								final Bookmark bookmark = Bookmark.parse(item, account);
 968								bookmarks.add(bookmark);
 969								Conversation conversation = find(bookmark);
 970								if (conversation != null) {
 971									conversation.setBookmark(bookmark);
 972								} else if (bookmark.autojoin() && bookmark.getJid() != null) {
 973									conversation = findOrCreateConversation(
 974											account, bookmark.getJid(), true);
 975									conversation.setBookmark(bookmark);
 976									joinMuc(conversation);
 977								}
 978							}
 979						}
 980					}
 981					account.setBookmarks(bookmarks);
 982				} else {
 983					Log.d(Config.LOGTAG,account.getJid().toBareJid()+": could not fetch bookmarks");
 984				}
 985			}
 986		};
 987		sendIqPacket(account, iqPacket, callback);
 988	}
 989
 990	public void pushBookmarks(Account account) {
 991		IqPacket iqPacket = new IqPacket(IqPacket.TYPE.SET);
 992		Element query = iqPacket.query("jabber:iq:private");
 993		Element storage = query.addChild("storage", "storage:bookmarks");
 994		for (Bookmark bookmark : account.getBookmarks()) {
 995			storage.addChild(bookmark);
 996		}
 997		sendIqPacket(account, iqPacket, mDefaultIqHandler);
 998	}
 999
1000	public void onPhoneContactsLoaded(final List<Bundle> phoneContacts) {
1001		if (mPhoneContactMergerThread != null) {
1002			mPhoneContactMergerThread.interrupt();
1003		}
1004		mPhoneContactMergerThread = new Thread(new Runnable() {
1005			@Override
1006			public void run() {
1007				Log.d(Config.LOGTAG,"start merging phone contacts with roster");
1008				for (Account account : accounts) {
1009					List<Contact> withSystemAccounts = account.getRoster().getWithSystemAccounts();
1010					for (Bundle phoneContact : phoneContacts) {
1011						if (Thread.interrupted()) {
1012							Log.d(Config.LOGTAG,"interrupted merging phone contacts");
1013							return;
1014						}
1015						Jid jid;
1016						try {
1017							jid = Jid.fromString(phoneContact.getString("jid"));
1018						} catch (final InvalidJidException e) {
1019							continue;
1020						}
1021						final Contact contact = account.getRoster().getContact(jid);
1022						String systemAccount = phoneContact.getInt("phoneid")
1023							+ "#"
1024							+ phoneContact.getString("lookup");
1025						contact.setSystemAccount(systemAccount);
1026						if (contact.setPhotoUri(phoneContact.getString("photouri"))) {
1027							getAvatarService().clear(contact);
1028						}
1029						contact.setSystemName(phoneContact.getString("displayname"));
1030						withSystemAccounts.remove(contact);
1031					}
1032					for(Contact contact : withSystemAccounts) {
1033						contact.setSystemAccount(null);
1034						contact.setSystemName(null);
1035						if (contact.setPhotoUri(null)) {
1036							getAvatarService().clear(contact);
1037						}
1038					}
1039				}
1040				Log.d(Config.LOGTAG,"finished merging phone contacts");
1041				updateAccountUi();
1042			}
1043		});
1044		mPhoneContactMergerThread.start();
1045	}
1046
1047	private void restoreFromDatabase() {
1048		synchronized (this.conversations) {
1049			final Map<String, Account> accountLookupTable = new Hashtable<>();
1050			for (Account account : this.accounts) {
1051				accountLookupTable.put(account.getUuid(), account);
1052			}
1053			this.conversations.addAll(databaseBackend.getConversations(Conversation.STATUS_AVAILABLE));
1054			for (Conversation conversation : this.conversations) {
1055				Account account = accountLookupTable.get(conversation.getAccountUuid());
1056				conversation.setAccount(account);
1057			}
1058			Runnable runnable =new Runnable() {
1059				@Override
1060				public void run() {
1061					Log.d(Config.LOGTAG,"restoring roster");
1062					for(Account account : accounts) {
1063						databaseBackend.readRoster(account.getRoster());
1064						account.initAccountServices(XmppConnectionService.this);
1065					}
1066					getBitmapCache().evictAll();
1067					Looper.prepare();
1068					PhoneHelper.loadPhoneContacts(getApplicationContext(),
1069							new CopyOnWriteArrayList<Bundle>(),
1070							XmppConnectionService.this);
1071					Log.d(Config.LOGTAG,"restoring messages");
1072					for (Conversation conversation : conversations) {
1073						conversation.addAll(0, databaseBackend.getMessages(conversation, Config.PAGE_SIZE));
1074						checkDeletedFiles(conversation);
1075					}
1076					mRestoredFromDatabase = true;
1077					Log.d(Config.LOGTAG,"restored all messages");
1078					updateConversationUi();
1079				}
1080			};
1081			mDatabaseExecutor.execute(runnable);
1082		}
1083	}
1084
1085	public List<Conversation> getConversations() {
1086		return this.conversations;
1087	}
1088
1089	private void checkDeletedFiles(Conversation conversation) {
1090		conversation.findMessagesWithFiles(new Conversation.OnMessageFound() {
1091
1092			@Override
1093			public void onMessageFound(Message message) {
1094				if (!getFileBackend().isFileAvailable(message)) {
1095					message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
1096					final int s = message.getStatus();
1097					if(s == Message.STATUS_WAITING || s == Message.STATUS_OFFERED || s == Message.STATUS_UNSEND) {
1098						markMessage(message,Message.STATUS_SEND_FAILED);
1099					}
1100				}
1101			}
1102		});
1103	}
1104
1105	private void markFileDeleted(String uuid) {
1106		for (Conversation conversation : getConversations()) {
1107			Message message = conversation.findMessageWithFileAndUuid(uuid);
1108			if (message != null) {
1109				if (!getFileBackend().isFileAvailable(message)) {
1110					message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
1111					final int s = message.getStatus();
1112					if(s == Message.STATUS_WAITING || s == Message.STATUS_OFFERED || s == Message.STATUS_UNSEND) {
1113						markMessage(message,Message.STATUS_SEND_FAILED);
1114					} else {
1115						updateConversationUi();
1116					}
1117				}
1118				return;
1119			}
1120		}
1121	}
1122
1123	public void populateWithOrderedConversations(final List<Conversation> list) {
1124		populateWithOrderedConversations(list, true);
1125	}
1126
1127	public void populateWithOrderedConversations(final List<Conversation> list, boolean includeNoFileUpload) {
1128		list.clear();
1129		if (includeNoFileUpload) {
1130			list.addAll(getConversations());
1131		} else {
1132			for (Conversation conversation : getConversations()) {
1133				if (conversation.getMode() == Conversation.MODE_SINGLE
1134						|| conversation.getAccount().httpUploadAvailable()) {
1135					list.add(conversation);
1136				}
1137			}
1138		}
1139		Collections.sort(list, new Comparator<Conversation>() {
1140			@Override
1141			public int compare(Conversation lhs, Conversation rhs) {
1142				Message left = lhs.getLatestMessage();
1143				Message right = rhs.getLatestMessage();
1144				if (left.getTimeSent() > right.getTimeSent()) {
1145					return -1;
1146				} else if (left.getTimeSent() < right.getTimeSent()) {
1147					return 1;
1148				} else {
1149					return 0;
1150				}
1151			}
1152		});
1153	}
1154
1155	public void loadMoreMessages(final Conversation conversation, final long timestamp, final OnMoreMessagesLoaded callback) {
1156		if (XmppConnectionService.this.getMessageArchiveService().queryInProgress(conversation,callback)) {
1157			return;
1158		}
1159		Log.d(Config.LOGTAG, "load more messages for " + conversation.getName() + " prior to " + MessageGenerator.getTimestamp(timestamp));
1160		Runnable runnable = new Runnable() {
1161			@Override
1162			public void run() {
1163				final Account account = conversation.getAccount();
1164				List<Message> messages = databaseBackend.getMessages(conversation, 50,timestamp);
1165				if (messages.size() > 0) {
1166					conversation.addAll(0, messages);
1167					checkDeletedFiles(conversation);
1168					callback.onMoreMessagesLoaded(messages.size(), conversation);
1169				} else if (conversation.hasMessagesLeftOnServer()
1170						&& account.isOnlineAndConnected()) {
1171					if ((conversation.getMode() == Conversation.MODE_SINGLE && account.getXmppConnection().getFeatures().mam())
1172							|| (conversation.getMode() == Conversation.MODE_MULTI && conversation.getMucOptions().mamSupport())) {
1173						MessageArchiveService.Query query = getMessageArchiveService().query(conversation,0,timestamp - 1);
1174						if (query != null) {
1175							query.setCallback(callback);
1176						}
1177						callback.informUser(R.string.fetching_history_from_server);
1178					}
1179				}
1180			}
1181		};
1182		mDatabaseExecutor.execute(runnable);
1183	}
1184
1185	public List<Account> getAccounts() {
1186		return this.accounts;
1187	}
1188
1189	public Conversation find(final Iterable<Conversation> haystack, final Contact contact) {
1190		for (final Conversation conversation : haystack) {
1191			if (conversation.getContact() == contact) {
1192				return conversation;
1193			}
1194		}
1195		return null;
1196	}
1197
1198	public Conversation find(final Iterable<Conversation> haystack, final Account account, final Jid jid) {
1199		if (jid == null) {
1200			return null;
1201		}
1202		for (final Conversation conversation : haystack) {
1203			if ((account == null || conversation.getAccount() == account)
1204					&& (conversation.getJid().toBareJid().equals(jid.toBareJid()))) {
1205				return conversation;
1206			}
1207		}
1208		return null;
1209	}
1210
1211	public Conversation findOrCreateConversation(final Account account, final Jid jid, final boolean muc) {
1212		return this.findOrCreateConversation(account, jid, muc, null);
1213	}
1214
1215	public Conversation findOrCreateConversation(final Account account, final Jid jid, final boolean muc, final MessageArchiveService.Query query) {
1216		synchronized (this.conversations) {
1217			Conversation conversation = find(account, jid);
1218			if (conversation != null) {
1219				return conversation;
1220			}
1221			conversation = databaseBackend.findConversation(account, jid);
1222			if (conversation != null) {
1223				conversation.setStatus(Conversation.STATUS_AVAILABLE);
1224				conversation.setAccount(account);
1225				if (muc) {
1226					conversation.setMode(Conversation.MODE_MULTI);
1227					conversation.setContactJid(jid);
1228				} else {
1229					conversation.setMode(Conversation.MODE_SINGLE);
1230					conversation.setContactJid(jid.toBareJid());
1231				}
1232				conversation.setNextEncryption(-1);
1233				conversation.addAll(0, databaseBackend.getMessages(conversation, Config.PAGE_SIZE));
1234				this.databaseBackend.updateConversation(conversation);
1235			} else {
1236				String conversationName;
1237				Contact contact = account.getRoster().getContact(jid);
1238				if (contact != null) {
1239					conversationName = contact.getDisplayName();
1240				} else {
1241					conversationName = jid.getLocalpart();
1242				}
1243				if (muc) {
1244					conversation = new Conversation(conversationName, account, jid,
1245							Conversation.MODE_MULTI);
1246				} else {
1247					conversation = new Conversation(conversationName, account, jid.toBareJid(),
1248							Conversation.MODE_SINGLE);
1249				}
1250				this.databaseBackend.createConversation(conversation);
1251			}
1252			if (account.getXmppConnection() != null
1253					&& account.getXmppConnection().getFeatures().mam()
1254					&& !muc) {
1255				if (query == null) {
1256					this.mMessageArchiveService.query(conversation);
1257				} else {
1258					if (query.getConversation() == null) {
1259						this.mMessageArchiveService.query(conversation, query.getStart());
1260					}
1261				}
1262			}
1263			checkDeletedFiles(conversation);
1264			this.conversations.add(conversation);
1265			updateConversationUi();
1266			return conversation;
1267		}
1268	}
1269
1270	public void archiveConversation(Conversation conversation) {
1271		getNotificationService().clear(conversation);
1272		conversation.setStatus(Conversation.STATUS_ARCHIVED);
1273		conversation.setNextEncryption(-1);
1274		synchronized (this.conversations) {
1275			if (conversation.getMode() == Conversation.MODE_MULTI) {
1276				if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
1277					Bookmark bookmark = conversation.getBookmark();
1278					if (bookmark != null && bookmark.autojoin()) {
1279						bookmark.setAutojoin(false);
1280						pushBookmarks(bookmark.getAccount());
1281					}
1282				}
1283				leaveMuc(conversation);
1284			} else {
1285				conversation.endOtrIfNeeded();
1286			}
1287			this.databaseBackend.updateConversation(conversation);
1288			this.conversations.remove(conversation);
1289			updateConversationUi();
1290		}
1291	}
1292
1293	public void createAccount(final Account account) {
1294		account.initAccountServices(this);
1295		databaseBackend.createAccount(account);
1296		this.accounts.add(account);
1297		this.reconnectAccountInBackground(account);
1298		updateAccountUi();
1299	}
1300
1301	public void createAccountFromKey(final String alias, final OnAccountCreated callback) {
1302		new Thread(new Runnable() {
1303			@Override
1304			public void run() {
1305				try {
1306					X509Certificate[] chain = KeyChain.getCertificateChain(XmppConnectionService.this, alias);
1307					PrivateKey key = KeyChain.getPrivateKey(XmppConnectionService.this, alias);
1308					X500Name x500name = new JcaX509CertificateHolder(chain[0]).getSubject();
1309					String email = IETFUtils.valueToString(x500name.getRDNs(BCStyle.EmailAddress)[0].getFirst().getValue());
1310					String name = IETFUtils.valueToString(x500name.getRDNs(BCStyle.CN)[0].getFirst().getValue());
1311					Jid jid = Jid.fromString(email);
1312					if (findAccountByJid(jid) == null) {
1313						Account account = new Account(jid, "");
1314						account.setPrivateKeyAlias(alias);
1315						account.setOption(Account.OPTION_DISABLED, true);
1316						createAccount(account);
1317						callback.onAccountCreated(account);
1318					} else {
1319						callback.informUser(R.string.account_already_exists);
1320					}
1321				} catch (KeyChainException e) {
1322					callback.informUser(R.string.unable_to_parse_certificate);
1323				} catch (InterruptedException e) {
1324					callback.informUser(R.string.unable_to_parse_certificate);
1325					e.printStackTrace();
1326				} catch (CertificateEncodingException e) {
1327					callback.informUser(R.string.unable_to_parse_certificate);
1328					e.printStackTrace();
1329				} catch (InvalidJidException e) {
1330					callback.informUser(R.string.unable_to_parse_certificate);
1331					e.printStackTrace();
1332				}
1333			}
1334		}).start();
1335
1336	}
1337
1338	public void updateAccount(final Account account) {
1339		this.statusListener.onStatusChanged(account);
1340		databaseBackend.updateAccount(account);
1341		reconnectAccount(account, false, true);
1342		updateAccountUi();
1343		getNotificationService().updateErrorNotification();
1344	}
1345
1346	public void updateAccountPasswordOnServer(final Account account, final String newPassword, final OnAccountPasswordChanged callback) {
1347		final IqPacket iq = getIqGenerator().generateSetPassword(account, newPassword);
1348		sendIqPacket(account, iq, new OnIqPacketReceived() {
1349			@Override
1350			public void onIqPacketReceived(final Account account, final IqPacket packet) {
1351				if (packet.getType() == IqPacket.TYPE.RESULT) {
1352					account.setPassword(newPassword);
1353					databaseBackend.updateAccount(account);
1354					callback.onPasswordChangeSucceeded();
1355				} else {
1356					callback.onPasswordChangeFailed();
1357				}
1358			}
1359		});
1360	}
1361
1362	public void deleteAccount(final Account account) {
1363		synchronized (this.conversations) {
1364			for (final Conversation conversation : conversations) {
1365				if (conversation.getAccount() == account) {
1366					if (conversation.getMode() == Conversation.MODE_MULTI) {
1367						leaveMuc(conversation);
1368					} else if (conversation.getMode() == Conversation.MODE_SINGLE) {
1369						conversation.endOtrIfNeeded();
1370					}
1371					conversations.remove(conversation);
1372				}
1373			}
1374			if (account.getXmppConnection() != null) {
1375				this.disconnect(account, true);
1376			}
1377			databaseBackend.deleteAccount(account);
1378			this.accounts.remove(account);
1379			updateAccountUi();
1380			getNotificationService().updateErrorNotification();
1381		}
1382	}
1383
1384	public void setOnConversationListChangedListener(OnConversationUpdate listener) {
1385		synchronized (this) {
1386			if (checkListeners()) {
1387				switchToForeground();
1388			}
1389			this.mOnConversationUpdate = listener;
1390			this.mNotificationService.setIsInForeground(true);
1391			if (this.convChangedListenerCount < 2) {
1392				this.convChangedListenerCount++;
1393			}
1394		}
1395	}
1396
1397	public void removeOnConversationListChangedListener() {
1398		synchronized (this) {
1399			this.convChangedListenerCount--;
1400			if (this.convChangedListenerCount <= 0) {
1401				this.convChangedListenerCount = 0;
1402				this.mOnConversationUpdate = null;
1403				this.mNotificationService.setIsInForeground(false);
1404				if (checkListeners()) {
1405					switchToBackground();
1406				}
1407			}
1408		}
1409	}
1410
1411	public void setOnShowErrorToastListener(OnShowErrorToast onShowErrorToast) {
1412		synchronized (this) {
1413			if (checkListeners()) {
1414				switchToForeground();
1415			}
1416			this.mOnShowErrorToast = onShowErrorToast;
1417			if (this.showErrorToastListenerCount < 2) {
1418				this.showErrorToastListenerCount++;
1419			}
1420		}
1421		this.mOnShowErrorToast = onShowErrorToast;
1422	}
1423
1424	public void removeOnShowErrorToastListener() {
1425		synchronized (this) {
1426			this.showErrorToastListenerCount--;
1427			if (this.showErrorToastListenerCount <= 0) {
1428				this.showErrorToastListenerCount = 0;
1429				this.mOnShowErrorToast = null;
1430				if (checkListeners()) {
1431					switchToBackground();
1432				}
1433			}
1434		}
1435	}
1436
1437	public void setOnAccountListChangedListener(OnAccountUpdate listener) {
1438		synchronized (this) {
1439			if (checkListeners()) {
1440				switchToForeground();
1441			}
1442			this.mOnAccountUpdate = listener;
1443			if (this.accountChangedListenerCount < 2) {
1444				this.accountChangedListenerCount++;
1445			}
1446		}
1447	}
1448
1449	public void removeOnAccountListChangedListener() {
1450		synchronized (this) {
1451			this.accountChangedListenerCount--;
1452			if (this.accountChangedListenerCount <= 0) {
1453				this.mOnAccountUpdate = null;
1454				this.accountChangedListenerCount = 0;
1455				if (checkListeners()) {
1456					switchToBackground();
1457				}
1458			}
1459		}
1460	}
1461
1462	public void setOnRosterUpdateListener(final OnRosterUpdate listener) {
1463		synchronized (this) {
1464			if (checkListeners()) {
1465				switchToForeground();
1466			}
1467			this.mOnRosterUpdate = listener;
1468			if (this.rosterChangedListenerCount < 2) {
1469				this.rosterChangedListenerCount++;
1470			}
1471		}
1472	}
1473
1474	public void removeOnRosterUpdateListener() {
1475		synchronized (this) {
1476			this.rosterChangedListenerCount--;
1477			if (this.rosterChangedListenerCount <= 0) {
1478				this.rosterChangedListenerCount = 0;
1479				this.mOnRosterUpdate = null;
1480				if (checkListeners()) {
1481					switchToBackground();
1482				}
1483			}
1484		}
1485	}
1486
1487	public void setOnUpdateBlocklistListener(final OnUpdateBlocklist listener) {
1488		synchronized (this) {
1489			if (checkListeners()) {
1490				switchToForeground();
1491			}
1492			this.mOnUpdateBlocklist = listener;
1493			if (this.updateBlocklistListenerCount < 2) {
1494				this.updateBlocklistListenerCount++;
1495			}
1496		}
1497	}
1498
1499	public void removeOnUpdateBlocklistListener() {
1500		synchronized (this) {
1501			this.updateBlocklistListenerCount--;
1502			if (this.updateBlocklistListenerCount <= 0) {
1503				this.updateBlocklistListenerCount = 0;
1504				this.mOnUpdateBlocklist = null;
1505				if (checkListeners()) {
1506					switchToBackground();
1507				}
1508			}
1509		}
1510	}
1511
1512	public void setOnKeyStatusUpdatedListener(final OnKeyStatusUpdated listener) {
1513		synchronized (this) {
1514			if (checkListeners()) {
1515				switchToForeground();
1516			}
1517			this.mOnKeyStatusUpdated = listener;
1518			if (this.keyStatusUpdatedListenerCount < 2) {
1519				this.keyStatusUpdatedListenerCount++;
1520			}
1521		}
1522	}
1523
1524	public void removeOnNewKeysAvailableListener() {
1525		synchronized (this) {
1526			this.keyStatusUpdatedListenerCount--;
1527			if (this.keyStatusUpdatedListenerCount <= 0) {
1528				this.keyStatusUpdatedListenerCount = 0;
1529				this.mOnKeyStatusUpdated = null;
1530				if (checkListeners()) {
1531					switchToBackground();
1532				}
1533			}
1534		}
1535	}
1536
1537	public void setOnMucRosterUpdateListener(OnMucRosterUpdate listener) {
1538		synchronized (this) {
1539			if (checkListeners()) {
1540				switchToForeground();
1541			}
1542			this.mOnMucRosterUpdate = listener;
1543			if (this.mucRosterChangedListenerCount < 2) {
1544				this.mucRosterChangedListenerCount++;
1545			}
1546		}
1547	}
1548
1549	public void removeOnMucRosterUpdateListener() {
1550		synchronized (this) {
1551			this.mucRosterChangedListenerCount--;
1552			if (this.mucRosterChangedListenerCount <= 0) {
1553				this.mucRosterChangedListenerCount = 0;
1554				this.mOnMucRosterUpdate = null;
1555				if (checkListeners()) {
1556					switchToBackground();
1557				}
1558			}
1559		}
1560	}
1561
1562	private boolean checkListeners() {
1563		return (this.mOnAccountUpdate == null
1564				&& this.mOnConversationUpdate == null
1565				&& this.mOnRosterUpdate == null
1566				&& this.mOnUpdateBlocklist == null
1567				&& this.mOnShowErrorToast == null
1568				&& this.mOnKeyStatusUpdated == null);
1569	}
1570
1571	private void switchToForeground() {
1572		for (Account account : getAccounts()) {
1573			if (account.getStatus() == Account.State.ONLINE) {
1574				XmppConnection connection = account.getXmppConnection();
1575				if (connection != null && connection.getFeatures().csi()) {
1576					connection.sendActive();
1577				}
1578			}
1579		}
1580		Log.d(Config.LOGTAG, "app switched into foreground");
1581	}
1582
1583	private void switchToBackground() {
1584		for (Account account : getAccounts()) {
1585			if (account.getStatus() == Account.State.ONLINE) {
1586				XmppConnection connection = account.getXmppConnection();
1587				if (connection != null && connection.getFeatures().csi()) {
1588					connection.sendInactive();
1589				}
1590			}
1591		}
1592		for(Conversation conversation : getConversations()) {
1593			conversation.setIncomingChatState(ChatState.ACTIVE);
1594		}
1595		this.mNotificationService.setIsInForeground(false);
1596		Log.d(Config.LOGTAG, "app switched into background");
1597	}
1598
1599	private void connectMultiModeConversations(Account account) {
1600		List<Conversation> conversations = getConversations();
1601		for (Conversation conversation : conversations) {
1602			if (conversation.getMode() == Conversation.MODE_MULTI && conversation.getAccount() == account) {
1603				joinMuc(conversation,true);
1604			}
1605		}
1606	}
1607
1608	public void joinMuc(Conversation conversation) {
1609		joinMuc(conversation, false);
1610	}
1611
1612	private void joinMuc(Conversation conversation, boolean now) {
1613		Account account = conversation.getAccount();
1614		account.pendingConferenceJoins.remove(conversation);
1615		account.pendingConferenceLeaves.remove(conversation);
1616		if (account.getStatus() == Account.State.ONLINE || now) {
1617			conversation.resetMucOptions();
1618			fetchConferenceConfiguration(conversation, new OnConferenceConfigurationFetched() {
1619				@Override
1620				public void onConferenceConfigurationFetched(Conversation conversation) {
1621					Account account = conversation.getAccount();
1622					final String nick = conversation.getMucOptions().getProposedNick();
1623					final Jid joinJid = conversation.getMucOptions().createJoinJid(nick);
1624					if (joinJid == null) {
1625						return; //safety net
1626					}
1627					Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": joining conversation " + joinJid.toString());
1628					PresencePacket packet = new PresencePacket();
1629					packet.setFrom(conversation.getAccount().getJid());
1630					packet.setTo(joinJid);
1631					Element x = packet.addChild("x", "http://jabber.org/protocol/muc");
1632					if (conversation.getMucOptions().getPassword() != null) {
1633						x.addChild("password").setContent(conversation.getMucOptions().getPassword());
1634					}
1635
1636					if (conversation.getMucOptions().mamSupport()) {
1637						// Use MAM instead of the limited muc history to get history
1638						x.addChild("history").setAttribute("maxchars", "0");
1639					} else {
1640						// Fallback to muc history
1641						x.addChild("history").setAttribute("since", PresenceGenerator.getTimestamp(conversation.getLastMessageTransmitted()));
1642					}
1643					String sig = account.getPgpSignature();
1644					if (sig != null) {
1645						packet.addChild("status").setContent("online");
1646						packet.addChild("x", "jabber:x:signed").setContent(sig);
1647					}
1648					sendPresencePacket(account, packet);
1649					fetchConferenceConfiguration(conversation);
1650					if (!joinJid.equals(conversation.getJid())) {
1651						conversation.setContactJid(joinJid);
1652						databaseBackend.updateConversation(conversation);
1653					}
1654					conversation.setHasMessagesLeftOnServer(false);
1655					if (conversation.getMucOptions().mamSupport()) {
1656						getMessageArchiveService().catchupMUC(conversation);
1657					}
1658				}
1659			});
1660
1661		} else {
1662			account.pendingConferenceJoins.add(conversation);
1663		}
1664	}
1665
1666	public void providePasswordForMuc(Conversation conversation, String password) {
1667		if (conversation.getMode() == Conversation.MODE_MULTI) {
1668			conversation.getMucOptions().setPassword(password);
1669			if (conversation.getBookmark() != null) {
1670				conversation.getBookmark().setAutojoin(true);
1671				pushBookmarks(conversation.getAccount());
1672			}
1673			databaseBackend.updateConversation(conversation);
1674			joinMuc(conversation);
1675		}
1676	}
1677
1678	public void renameInMuc(final Conversation conversation, final String nick, final UiCallback<Conversation> callback) {
1679		final MucOptions options = conversation.getMucOptions();
1680		final Jid joinJid = options.createJoinJid(nick);
1681		if (options.online()) {
1682			Account account = conversation.getAccount();
1683			options.setOnRenameListener(new OnRenameListener() {
1684
1685				@Override
1686				public void onSuccess() {
1687					conversation.setContactJid(joinJid);
1688					databaseBackend.updateConversation(conversation);
1689					Bookmark bookmark = conversation.getBookmark();
1690					if (bookmark != null) {
1691						bookmark.setNick(nick);
1692						pushBookmarks(bookmark.getAccount());
1693					}
1694					callback.success(conversation);
1695				}
1696
1697				@Override
1698				public void onFailure() {
1699					callback.error(R.string.nick_in_use, conversation);
1700				}
1701			});
1702
1703			PresencePacket packet = new PresencePacket();
1704			packet.setTo(joinJid);
1705			packet.setFrom(conversation.getAccount().getJid());
1706
1707			String sig = account.getPgpSignature();
1708			if (sig != null) {
1709				packet.addChild("status").setContent("online");
1710				packet.addChild("x", "jabber:x:signed").setContent(sig);
1711			}
1712			sendPresencePacket(account, packet);
1713		} else {
1714			conversation.setContactJid(joinJid);
1715			databaseBackend.updateConversation(conversation);
1716			if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
1717				Bookmark bookmark = conversation.getBookmark();
1718				if (bookmark != null) {
1719					bookmark.setNick(nick);
1720					pushBookmarks(bookmark.getAccount());
1721				}
1722				joinMuc(conversation);
1723			}
1724		}
1725	}
1726
1727	public void leaveMuc(Conversation conversation) {
1728		Account account = conversation.getAccount();
1729		account.pendingConferenceJoins.remove(conversation);
1730		account.pendingConferenceLeaves.remove(conversation);
1731		if (account.getStatus() == Account.State.ONLINE) {
1732			PresencePacket packet = new PresencePacket();
1733			packet.setTo(conversation.getJid());
1734			packet.setFrom(conversation.getAccount().getJid());
1735			packet.setAttribute("type", "unavailable");
1736			sendPresencePacket(conversation.getAccount(), packet);
1737			conversation.getMucOptions().setOffline();
1738			conversation.deregisterWithBookmark();
1739			Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid()
1740					+ ": leaving muc " + conversation.getJid());
1741		} else {
1742			account.pendingConferenceLeaves.add(conversation);
1743		}
1744	}
1745
1746	private String findConferenceServer(final Account account) {
1747		String server;
1748		if (account.getXmppConnection() != null) {
1749			server = account.getXmppConnection().getMucServer();
1750			if (server != null) {
1751				return server;
1752			}
1753		}
1754		for (Account other : getAccounts()) {
1755			if (other != account && other.getXmppConnection() != null) {
1756				server = other.getXmppConnection().getMucServer();
1757				if (server != null) {
1758					return server;
1759				}
1760			}
1761		}
1762		return null;
1763	}
1764
1765	public void createAdhocConference(final Account account, final Iterable<Jid> jids, final UiCallback<Conversation> callback) {
1766		Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": creating adhoc conference with " + jids.toString());
1767		if (account.getStatus() == Account.State.ONLINE) {
1768			try {
1769				String server = findConferenceServer(account);
1770				if (server == null) {
1771					if (callback != null) {
1772						callback.error(R.string.no_conference_server_found, null);
1773					}
1774					return;
1775				}
1776				String name = new BigInteger(75, getRNG()).toString(32);
1777				Jid jid = Jid.fromParts(name, server, null);
1778				final Conversation conversation = findOrCreateConversation(account, jid, true);
1779				joinMuc(conversation);
1780				Bundle options = new Bundle();
1781				options.putString("muc#roomconfig_persistentroom", "1");
1782				options.putString("muc#roomconfig_membersonly", "1");
1783				options.putString("muc#roomconfig_publicroom", "0");
1784				options.putString("muc#roomconfig_whois", "anyone");
1785				pushConferenceConfiguration(conversation, options, new OnConferenceOptionsPushed() {
1786					@Override
1787					public void onPushSucceeded() {
1788						for (Jid invite : jids) {
1789							invite(conversation, invite);
1790						}
1791						if (account.countPresences() > 1) {
1792							directInvite(conversation, account.getJid().toBareJid());
1793						}
1794						if (callback != null) {
1795							callback.success(conversation);
1796						}
1797					}
1798
1799					@Override
1800					public void onPushFailed() {
1801						if (callback != null) {
1802							callback.error(R.string.conference_creation_failed, conversation);
1803						}
1804					}
1805				});
1806
1807			} catch (InvalidJidException e) {
1808				if (callback != null) {
1809					callback.error(R.string.conference_creation_failed, null);
1810				}
1811			}
1812		} else {
1813			if (callback != null) {
1814				callback.error(R.string.not_connected_try_again, null);
1815			}
1816		}
1817	}
1818
1819	public void fetchConferenceConfiguration(final Conversation conversation) {
1820		fetchConferenceConfiguration(conversation, null);
1821	}
1822
1823	public void fetchConferenceConfiguration(final Conversation conversation, final OnConferenceConfigurationFetched callback) {
1824		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
1825		request.setTo(conversation.getJid().toBareJid());
1826		request.query("http://jabber.org/protocol/disco#info");
1827		sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
1828			@Override
1829			public void onIqPacketReceived(Account account, IqPacket packet) {
1830				if (packet.getType() == IqPacket.TYPE.RESULT) {
1831					ArrayList<String> features = new ArrayList<>();
1832					for (Element child : packet.query().getChildren()) {
1833						if (child != null && child.getName().equals("feature")) {
1834							String var = child.getAttribute("var");
1835							if (var != null) {
1836								features.add(var);
1837							}
1838						}
1839					}
1840					conversation.getMucOptions().updateFeatures(features);
1841					if (callback != null) {
1842						callback.onConferenceConfigurationFetched(conversation);
1843					}
1844					updateConversationUi();
1845				}
1846			}
1847		});
1848	}
1849
1850	public void pushConferenceConfiguration(final Conversation conversation, final Bundle options, final OnConferenceOptionsPushed callback) {
1851		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
1852		request.setTo(conversation.getJid().toBareJid());
1853		request.query("http://jabber.org/protocol/muc#owner");
1854		sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
1855			@Override
1856			public void onIqPacketReceived(Account account, IqPacket packet) {
1857				if (packet.getType() == IqPacket.TYPE.RESULT) {
1858					Data data = Data.parse(packet.query().findChild("x", "jabber:x:data"));
1859					for (Field field : data.getFields()) {
1860						if (options.containsKey(field.getFieldName())) {
1861							field.setValue(options.getString(field.getFieldName()));
1862						}
1863					}
1864					data.submit();
1865					IqPacket set = new IqPacket(IqPacket.TYPE.SET);
1866					set.setTo(conversation.getJid().toBareJid());
1867					set.query("http://jabber.org/protocol/muc#owner").addChild(data);
1868					sendIqPacket(account, set, new OnIqPacketReceived() {
1869						@Override
1870						public void onIqPacketReceived(Account account, IqPacket packet) {
1871							if (callback != null) {
1872								if (packet.getType() == IqPacket.TYPE.RESULT) {
1873									callback.onPushSucceeded();
1874								} else {
1875									callback.onPushFailed();
1876								}
1877							}
1878						}
1879					});
1880				} else {
1881					if (callback != null) {
1882						callback.onPushFailed();
1883					}
1884				}
1885			}
1886		});
1887	}
1888
1889	public void pushSubjectToConference(final Conversation conference, final String subject) {
1890		MessagePacket packet = this.getMessageGenerator().conferenceSubject(conference, subject);
1891		this.sendMessagePacket(conference.getAccount(), packet);
1892		final MucOptions mucOptions = conference.getMucOptions();
1893		final MucOptions.User self = mucOptions.getSelf();
1894		if (!mucOptions.persistent() && self.getAffiliation().ranks(MucOptions.Affiliation.OWNER)) {
1895			Bundle options = new Bundle();
1896			options.putString("muc#roomconfig_persistentroom", "1");
1897			this.pushConferenceConfiguration(conference, options, null);
1898		}
1899	}
1900
1901	public void changeAffiliationInConference(final Conversation conference, Jid user, MucOptions.Affiliation affiliation, final OnAffiliationChanged callback) {
1902		final Jid jid = user.toBareJid();
1903		IqPacket request = this.mIqGenerator.changeAffiliation(conference, jid, affiliation.toString());
1904		sendIqPacket(conference.getAccount(), request, new OnIqPacketReceived() {
1905			@Override
1906			public void onIqPacketReceived(Account account, IqPacket packet) {
1907				if (packet.getType() == IqPacket.TYPE.RESULT) {
1908					callback.onAffiliationChangedSuccessful(jid);
1909				} else {
1910					callback.onAffiliationChangeFailed(jid, R.string.could_not_change_affiliation);
1911				}
1912			}
1913		});
1914	}
1915
1916	public void changeAffiliationsInConference(final Conversation conference, MucOptions.Affiliation before, MucOptions.Affiliation after) {
1917		List<Jid> jids = new ArrayList<>();
1918		for (MucOptions.User user : conference.getMucOptions().getUsers()) {
1919			if (user.getAffiliation() == before && user.getJid() != null) {
1920				jids.add(user.getJid());
1921			}
1922		}
1923		IqPacket request = this.mIqGenerator.changeAffiliation(conference, jids, after.toString());
1924		sendIqPacket(conference.getAccount(), request, mDefaultIqHandler);
1925	}
1926
1927	public void changeRoleInConference(final Conversation conference, final String nick, MucOptions.Role role, final OnRoleChanged callback) {
1928		IqPacket request = this.mIqGenerator.changeRole(conference, nick, role.toString());
1929		Log.d(Config.LOGTAG, request.toString());
1930		sendIqPacket(conference.getAccount(), request, new OnIqPacketReceived() {
1931			@Override
1932			public void onIqPacketReceived(Account account, IqPacket packet) {
1933				Log.d(Config.LOGTAG, packet.toString());
1934				if (packet.getType() == IqPacket.TYPE.RESULT) {
1935					callback.onRoleChangedSuccessful(nick);
1936				} else {
1937					callback.onRoleChangeFailed(nick, R.string.could_not_change_role);
1938				}
1939			}
1940		});
1941	}
1942
1943	public void disconnect(Account account, boolean force) {
1944		if ((account.getStatus() == Account.State.ONLINE)
1945				|| (account.getStatus() == Account.State.DISABLED)) {
1946			if (!force) {
1947				List<Conversation> conversations = getConversations();
1948				for (Conversation conversation : conversations) {
1949					if (conversation.getAccount() == account) {
1950						if (conversation.getMode() == Conversation.MODE_MULTI) {
1951							leaveMuc(conversation);
1952						} else {
1953							if (conversation.endOtrIfNeeded()) {
1954								Log.d(Config.LOGTAG, account.getJid().toBareJid()
1955										+ ": ended otr session with "
1956										+ conversation.getJid());
1957							}
1958						}
1959					}
1960				}
1961				sendOfflinePresence(account);
1962			}
1963			account.getXmppConnection().disconnect(force);
1964		}
1965	}
1966
1967	@Override
1968	public IBinder onBind(Intent intent) {
1969		return mBinder;
1970	}
1971
1972	public void updateMessage(Message message) {
1973		databaseBackend.updateMessage(message);
1974		updateConversationUi();
1975	}
1976
1977	protected void syncDirtyContacts(Account account) {
1978		for (Contact contact : account.getRoster().getContacts()) {
1979			if (contact.getOption(Contact.Options.DIRTY_PUSH)) {
1980				pushContactToServer(contact);
1981			}
1982			if (contact.getOption(Contact.Options.DIRTY_DELETE)) {
1983				deleteContactOnServer(contact);
1984			}
1985		}
1986	}
1987
1988	public void createContact(Contact contact) {
1989		SharedPreferences sharedPref = getPreferences();
1990		boolean autoGrant = sharedPref.getBoolean("grant_new_contacts", true);
1991		if (autoGrant) {
1992			contact.setOption(Contact.Options.PREEMPTIVE_GRANT);
1993			contact.setOption(Contact.Options.ASKING);
1994		}
1995		pushContactToServer(contact);
1996	}
1997
1998	public void onOtrSessionEstablished(Conversation conversation) {
1999		final Account account = conversation.getAccount();
2000		final Session otrSession = conversation.getOtrSession();
2001		Log.d(Config.LOGTAG,
2002				account.getJid().toBareJid() + " otr session established with "
2003						+ conversation.getJid() + "/"
2004						+ otrSession.getSessionID().getUserID());
2005		conversation.findUnsentMessagesWithEncryption(Message.ENCRYPTION_OTR, new Conversation.OnMessageFound() {
2006
2007			@Override
2008			public void onMessageFound(Message message) {
2009				SessionID id = otrSession.getSessionID();
2010				try {
2011					message.setCounterpart(Jid.fromString(id.getAccountID() + "/" + id.getUserID()));
2012				} catch (InvalidJidException e) {
2013					return;
2014				}
2015				if (message.needsUploading()) {
2016					mJingleConnectionManager.createNewConnection(message);
2017				} else {
2018					MessagePacket outPacket = mMessageGenerator.generateOtrChat(message);
2019					if (outPacket != null) {
2020						mMessageGenerator.addDelay(outPacket, message.getTimeSent());
2021						message.setStatus(Message.STATUS_SEND);
2022						databaseBackend.updateMessage(message);
2023						sendMessagePacket(account, outPacket);
2024					}
2025				}
2026				updateConversationUi();
2027			}
2028		});
2029	}
2030
2031	public boolean renewSymmetricKey(Conversation conversation) {
2032		Account account = conversation.getAccount();
2033		byte[] symmetricKey = new byte[32];
2034		this.mRandom.nextBytes(symmetricKey);
2035		Session otrSession = conversation.getOtrSession();
2036		if (otrSession != null) {
2037			MessagePacket packet = new MessagePacket();
2038			packet.setType(MessagePacket.TYPE_CHAT);
2039			packet.setFrom(account.getJid());
2040			MessageGenerator.addMessageHints(packet);
2041			packet.setAttribute("to", otrSession.getSessionID().getAccountID() + "/"
2042					+ otrSession.getSessionID().getUserID());
2043			try {
2044				packet.setBody(otrSession
2045						.transformSending(CryptoHelper.FILETRANSFER
2046								+ CryptoHelper.bytesToHex(symmetricKey))[0]);
2047				sendMessagePacket(account, packet);
2048				conversation.setSymmetricKey(symmetricKey);
2049				return true;
2050			} catch (OtrException e) {
2051				return false;
2052			}
2053		}
2054		return false;
2055	}
2056
2057	public void pushContactToServer(final Contact contact) {
2058		contact.resetOption(Contact.Options.DIRTY_DELETE);
2059		contact.setOption(Contact.Options.DIRTY_PUSH);
2060		final Account account = contact.getAccount();
2061		if (account.getStatus() == Account.State.ONLINE) {
2062			final boolean ask = contact.getOption(Contact.Options.ASKING);
2063			final boolean sendUpdates = contact
2064					.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)
2065					&& contact.getOption(Contact.Options.PREEMPTIVE_GRANT);
2066			final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
2067			iq.query(Xmlns.ROSTER).addChild(contact.asElement());
2068			account.getXmppConnection().sendIqPacket(iq, mDefaultIqHandler);
2069			if (sendUpdates) {
2070				sendPresencePacket(account,
2071						mPresenceGenerator.sendPresenceUpdatesTo(contact));
2072			}
2073			if (ask) {
2074				sendPresencePacket(account,
2075						mPresenceGenerator.requestPresenceUpdatesFrom(contact));
2076			}
2077		}
2078	}
2079
2080	public void publishAvatar(final Account account,
2081							  final Uri image,
2082							  final UiCallback<Avatar> callback) {
2083		final Bitmap.CompressFormat format = Config.AVATAR_FORMAT;
2084		final int size = Config.AVATAR_SIZE;
2085		final Avatar avatar = getFileBackend()
2086				.getPepAvatar(image, size, format);
2087		if (avatar != null) {
2088			avatar.height = size;
2089			avatar.width = size;
2090			if (format.equals(Bitmap.CompressFormat.WEBP)) {
2091				avatar.type = "image/webp";
2092			} else if (format.equals(Bitmap.CompressFormat.JPEG)) {
2093				avatar.type = "image/jpeg";
2094			} else if (format.equals(Bitmap.CompressFormat.PNG)) {
2095				avatar.type = "image/png";
2096			}
2097			if (!getFileBackend().save(avatar)) {
2098				callback.error(R.string.error_saving_avatar, avatar);
2099				return;
2100			}
2101			final IqPacket packet = this.mIqGenerator.publishAvatar(avatar);
2102			this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2103
2104				@Override
2105				public void onIqPacketReceived(Account account, IqPacket result) {
2106					if (result.getType() == IqPacket.TYPE.RESULT) {
2107						final IqPacket packet = XmppConnectionService.this.mIqGenerator
2108								.publishAvatarMetadata(avatar);
2109						sendIqPacket(account, packet, new OnIqPacketReceived() {
2110							@Override
2111							public void onIqPacketReceived(Account account, IqPacket result) {
2112								if (result.getType() == IqPacket.TYPE.RESULT) {
2113									if (account.setAvatar(avatar.getFilename())) {
2114										getAvatarService().clear(account);
2115										databaseBackend.updateAccount(account);
2116									}
2117									callback.success(avatar);
2118								} else {
2119									callback.error(
2120											R.string.error_publish_avatar_server_reject,
2121											avatar);
2122								}
2123							}
2124						});
2125					} else {
2126						callback.error(
2127								R.string.error_publish_avatar_server_reject,
2128								avatar);
2129					}
2130				}
2131			});
2132		} else {
2133			callback.error(R.string.error_publish_avatar_converting, null);
2134		}
2135	}
2136
2137	public void fetchAvatar(Account account, Avatar avatar) {
2138		fetchAvatar(account, avatar, null);
2139	}
2140
2141	private static String generateFetchKey(Account account, final Avatar avatar) {
2142		return account.getJid().toBareJid()+"_"+avatar.owner+"_"+avatar.sha1sum;
2143	}
2144
2145	public void fetchAvatar(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2146		final String KEY = generateFetchKey(account, avatar);
2147		synchronized(this.mInProgressAvatarFetches) {
2148			if (this.mInProgressAvatarFetches.contains(KEY)) {
2149				return;
2150			} else {
2151				switch (avatar.origin) {
2152					case PEP:
2153						this.mInProgressAvatarFetches.add(KEY);
2154						fetchAvatarPep(account, avatar, callback);
2155						break;
2156					case VCARD:
2157						this.mInProgressAvatarFetches.add(KEY);
2158						fetchAvatarVcard(account, avatar, callback);
2159						break;
2160				}
2161			}
2162		}
2163	}
2164
2165	private void fetchAvatarPep(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2166		IqPacket packet = this.mIqGenerator.retrievePepAvatar(avatar);
2167		sendIqPacket(account, packet, new OnIqPacketReceived() {
2168
2169			@Override
2170			public void onIqPacketReceived(Account account, IqPacket result) {
2171				synchronized (mInProgressAvatarFetches) {
2172					mInProgressAvatarFetches.remove(generateFetchKey(account, avatar));
2173				}
2174				final String ERROR = account.getJid().toBareJid()
2175						+ ": fetching avatar for " + avatar.owner + " failed ";
2176				if (result.getType() == IqPacket.TYPE.RESULT) {
2177					avatar.image = mIqParser.avatarData(result);
2178					if (avatar.image != null) {
2179						if (getFileBackend().save(avatar)) {
2180							if (account.getJid().toBareJid().equals(avatar.owner)) {
2181								if (account.setAvatar(avatar.getFilename())) {
2182									databaseBackend.updateAccount(account);
2183								}
2184								getAvatarService().clear(account);
2185								updateConversationUi();
2186								updateAccountUi();
2187							} else {
2188								Contact contact = account.getRoster()
2189										.getContact(avatar.owner);
2190								contact.setAvatar(avatar);
2191								getAvatarService().clear(contact);
2192								updateConversationUi();
2193								updateRosterUi();
2194							}
2195							if (callback != null) {
2196								callback.success(avatar);
2197							}
2198							Log.d(Config.LOGTAG, account.getJid().toBareJid()
2199									+ ": succesfuly fetched pep avatar for " + avatar.owner);
2200							return;
2201						}
2202					} else {
2203
2204						Log.d(Config.LOGTAG, ERROR + "(parsing error)");
2205					}
2206				} else {
2207					Element error = result.findChild("error");
2208					if (error == null) {
2209						Log.d(Config.LOGTAG, ERROR + "(server error)");
2210					} else {
2211						Log.d(Config.LOGTAG, ERROR + error.toString());
2212					}
2213				}
2214				if (callback != null) {
2215					callback.error(0, null);
2216				}
2217
2218			}
2219		});
2220	}
2221
2222	private void fetchAvatarVcard(final Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2223		IqPacket packet = this.mIqGenerator.retrieveVcardAvatar(avatar);
2224		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2225			@Override
2226			public void onIqPacketReceived(Account account, IqPacket packet) {
2227				synchronized (mInProgressAvatarFetches) {
2228					mInProgressAvatarFetches.remove(generateFetchKey(account, avatar));
2229				}
2230				if (packet.getType() == IqPacket.TYPE.RESULT) {
2231					Element vCard = packet.findChild("vCard", "vcard-temp");
2232					Element photo = vCard != null ? vCard.findChild("PHOTO") : null;
2233					String image = photo != null ? photo.findChildContent("BINVAL") : null;
2234					if (image != null) {
2235						avatar.image = image;
2236						if (getFileBackend().save(avatar)) {
2237							Log.d(Config.LOGTAG, account.getJid().toBareJid()
2238									+ ": successfully fetched vCard avatar for " + avatar.owner);
2239							Contact contact = account.getRoster()
2240									.getContact(avatar.owner);
2241							contact.setAvatar(avatar);
2242							getAvatarService().clear(contact);
2243							updateConversationUi();
2244							updateRosterUi();
2245						}
2246					}
2247				}
2248			}
2249		});
2250	}
2251
2252	public void checkForAvatar(Account account, final UiCallback<Avatar> callback) {
2253		IqPacket packet = this.mIqGenerator.retrieveAvatarMetaData(null);
2254		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2255
2256			@Override
2257			public void onIqPacketReceived(Account account, IqPacket packet) {
2258				if (packet.getType() == IqPacket.TYPE.RESULT) {
2259					Element pubsub = packet.findChild("pubsub",
2260							"http://jabber.org/protocol/pubsub");
2261					if (pubsub != null) {
2262						Element items = pubsub.findChild("items");
2263						if (items != null) {
2264							Avatar avatar = Avatar.parseMetadata(items);
2265							if (avatar != null) {
2266								avatar.owner = account.getJid().toBareJid();
2267								if (fileBackend.isAvatarCached(avatar)) {
2268									if (account.setAvatar(avatar.getFilename())) {
2269										databaseBackend.updateAccount(account);
2270									}
2271									getAvatarService().clear(account);
2272									callback.success(avatar);
2273								} else {
2274									fetchAvatarPep(account, avatar, callback);
2275								}
2276								return;
2277							}
2278						}
2279					}
2280				}
2281				callback.error(0, null);
2282			}
2283		});
2284	}
2285
2286	public void deleteContactOnServer(Contact contact) {
2287		contact.resetOption(Contact.Options.PREEMPTIVE_GRANT);
2288		contact.resetOption(Contact.Options.DIRTY_PUSH);
2289		contact.setOption(Contact.Options.DIRTY_DELETE);
2290		Account account = contact.getAccount();
2291		if (account.getStatus() == Account.State.ONLINE) {
2292			IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
2293			Element item = iq.query(Xmlns.ROSTER).addChild("item");
2294			item.setAttribute("jid", contact.getJid().toString());
2295			item.setAttribute("subscription", "remove");
2296			account.getXmppConnection().sendIqPacket(iq, mDefaultIqHandler);
2297		}
2298	}
2299
2300	public void updateConversation(Conversation conversation) {
2301		this.databaseBackend.updateConversation(conversation);
2302	}
2303
2304	private void reconnectAccount(final Account account, final boolean force, final boolean interactive) {
2305		synchronized (account) {
2306			if (account.getXmppConnection() != null) {
2307				disconnect(account, force);
2308			}
2309			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
2310
2311				synchronized (this.mInProgressAvatarFetches) {
2312					for(Iterator<String> iterator = this.mInProgressAvatarFetches.iterator(); iterator.hasNext();) {
2313						final String KEY = iterator.next();
2314						if (KEY.startsWith(account.getJid().toBareJid()+"_")) {
2315							iterator.remove();
2316						}
2317					}
2318				}
2319
2320				if (account.getXmppConnection() == null) {
2321					account.setXmppConnection(createConnection(account));
2322				}
2323				Thread thread = new Thread(account.getXmppConnection());
2324				account.getXmppConnection().setInteractive(interactive);
2325				thread.start();
2326				scheduleWakeUpCall(Config.CONNECT_TIMEOUT, account.getUuid().hashCode());
2327			} else {
2328				account.getRoster().clearPresences();
2329				account.setXmppConnection(null);
2330			}
2331		}
2332	}
2333
2334	public void reconnectAccountInBackground(final Account account) {
2335		new Thread(new Runnable() {
2336			@Override
2337			public void run() {
2338				reconnectAccount(account,false,true);
2339			}
2340		}).start();
2341	}
2342
2343	public void invite(Conversation conversation, Jid contact) {
2344		Log.d(Config.LOGTAG,conversation.getAccount().getJid().toBareJid()+": inviting "+contact+" to "+conversation.getJid().toBareJid());
2345		MessagePacket packet = mMessageGenerator.invite(conversation, contact);
2346		sendMessagePacket(conversation.getAccount(), packet);
2347	}
2348
2349	public void directInvite(Conversation conversation, Jid jid) {
2350		MessagePacket packet = mMessageGenerator.directInvite(conversation, jid);
2351		sendMessagePacket(conversation.getAccount(),packet);
2352	}
2353
2354	public void resetSendingToWaiting(Account account) {
2355		for (Conversation conversation : getConversations()) {
2356			if (conversation.getAccount() == account) {
2357				conversation.findUnsentTextMessages(new Conversation.OnMessageFound() {
2358
2359					@Override
2360					public void onMessageFound(Message message) {
2361						markMessage(message, Message.STATUS_WAITING);
2362					}
2363				});
2364			}
2365		}
2366	}
2367
2368	public Message markMessage(final Account account, final Jid recipient, final String uuid, final int status) {
2369		if (uuid == null) {
2370			return null;
2371		}
2372		for (Conversation conversation : getConversations()) {
2373			if (conversation.getJid().toBareJid().equals(recipient) && conversation.getAccount() == account) {
2374				final Message message = conversation.findSentMessageWithUuidOrRemoteId(uuid);
2375				if (message != null) {
2376					markMessage(message, status);
2377				}
2378				return message;
2379			}
2380		}
2381		return null;
2382	}
2383
2384	public boolean markMessage(Conversation conversation, String uuid, int status) {
2385		if (uuid == null) {
2386			return false;
2387		} else {
2388			Message message = conversation.findSentMessageWithUuid(uuid);
2389			if (message != null) {
2390				markMessage(message, status);
2391				return true;
2392			} else {
2393				return false;
2394			}
2395		}
2396	}
2397
2398	public void markMessage(Message message, int status) {
2399		if (status == Message.STATUS_SEND_FAILED
2400				&& (message.getStatus() == Message.STATUS_SEND_RECEIVED || message
2401				.getStatus() == Message.STATUS_SEND_DISPLAYED)) {
2402			return;
2403		}
2404		message.setStatus(status);
2405		databaseBackend.updateMessage(message);
2406		updateConversationUi();
2407	}
2408
2409	public SharedPreferences getPreferences() {
2410		return PreferenceManager
2411				.getDefaultSharedPreferences(getApplicationContext());
2412	}
2413
2414	public boolean forceEncryption() {
2415		return getPreferences().getBoolean("force_encryption", false);
2416	}
2417
2418	public boolean confirmMessages() {
2419		return getPreferences().getBoolean("confirm_messages", true);
2420	}
2421
2422	public boolean sendChatStates() {
2423		return getPreferences().getBoolean("chat_states", false);
2424	}
2425
2426	public boolean saveEncryptedMessages() {
2427		return !getPreferences().getBoolean("dont_save_encrypted", false);
2428	}
2429
2430	public boolean indicateReceived() {
2431		return getPreferences().getBoolean("indicate_received", false);
2432	}
2433
2434	public int unreadCount() {
2435		int count = 0;
2436		for(Conversation conversation : getConversations()) {
2437			count += conversation.unreadCount();
2438		}
2439		return count;
2440	}
2441
2442
2443	public void showErrorToastInUi(int resId) {
2444		if (mOnShowErrorToast != null) {
2445			mOnShowErrorToast.onShowErrorToast(resId);
2446		}
2447	}
2448
2449	public void updateConversationUi() {
2450		if (mOnConversationUpdate != null) {
2451			mOnConversationUpdate.onConversationUpdate();
2452		}
2453	}
2454
2455	public void updateAccountUi() {
2456		if (mOnAccountUpdate != null) {
2457			mOnAccountUpdate.onAccountUpdate();
2458		}
2459	}
2460
2461	public void updateRosterUi() {
2462		if (mOnRosterUpdate != null) {
2463			mOnRosterUpdate.onRosterUpdate();
2464		}
2465	}
2466
2467	public void updateBlocklistUi(final OnUpdateBlocklist.Status status) {
2468		if (mOnUpdateBlocklist != null) {
2469			mOnUpdateBlocklist.OnUpdateBlocklist(status);
2470		}
2471	}
2472
2473	public void updateMucRosterUi() {
2474		if (mOnMucRosterUpdate != null) {
2475			mOnMucRosterUpdate.onMucRosterUpdate();
2476		}
2477	}
2478
2479	public void keyStatusUpdated() {
2480		if(mOnKeyStatusUpdated != null) {
2481			mOnKeyStatusUpdated.onKeyStatusUpdated();
2482		}
2483	}
2484
2485	public Account findAccountByJid(final Jid accountJid) {
2486		for (Account account : this.accounts) {
2487			if (account.getJid().toBareJid().equals(accountJid.toBareJid())) {
2488				return account;
2489			}
2490		}
2491		return null;
2492	}
2493
2494	public Conversation findConversationByUuid(String uuid) {
2495		for (Conversation conversation : getConversations()) {
2496			if (conversation.getUuid().equals(uuid)) {
2497				return conversation;
2498			}
2499		}
2500		return null;
2501	}
2502
2503	public void markRead(final Conversation conversation) {
2504		mNotificationService.clear(conversation);
2505		conversation.markRead();
2506		updateUnreadCountBadge();
2507	}
2508
2509	public synchronized void updateUnreadCountBadge() {
2510		int count = unreadCount();
2511		if (unreadCount != count) {
2512			Log.d(Config.LOGTAG, "update unread count to " + count);
2513			if (count > 0) {
2514				ShortcutBadger.with(getApplicationContext()).count(count);
2515			} else {
2516				ShortcutBadger.with(getApplicationContext()).remove();
2517			}
2518			unreadCount = count;
2519		}
2520	}
2521
2522	public void sendReadMarker(final Conversation conversation) {
2523		final Message markable = conversation.getLatestMarkableMessage();
2524		this.markRead(conversation);
2525		if (confirmMessages() && markable != null && markable.getRemoteMsgId() != null) {
2526			Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid() + ": sending read marker to " + markable.getCounterpart().toString());
2527			Account account = conversation.getAccount();
2528			final Jid to = markable.getCounterpart();
2529			MessagePacket packet = mMessageGenerator.confirm(account, to, markable.getRemoteMsgId());
2530			this.sendMessagePacket(conversation.getAccount(), packet);
2531		}
2532		updateConversationUi();
2533	}
2534
2535	public SecureRandom getRNG() {
2536		return this.mRandom;
2537	}
2538
2539	public MemorizingTrustManager getMemorizingTrustManager() {
2540		return this.mMemorizingTrustManager;
2541	}
2542
2543	public void setMemorizingTrustManager(MemorizingTrustManager trustManager) {
2544		this.mMemorizingTrustManager = trustManager;
2545	}
2546
2547	public void updateMemorizingTrustmanager() {
2548		final MemorizingTrustManager tm;
2549		final boolean dontTrustSystemCAs = getPreferences().getBoolean("dont_trust_system_cas", false);
2550		if (dontTrustSystemCAs) {
2551			 tm = new MemorizingTrustManager(getApplicationContext(), null);
2552		} else {
2553			tm = new MemorizingTrustManager(getApplicationContext());
2554		}
2555		setMemorizingTrustManager(tm);
2556	}
2557
2558	public PowerManager getPowerManager() {
2559		return this.pm;
2560	}
2561
2562	public LruCache<String, Bitmap> getBitmapCache() {
2563		return this.mBitmapCache;
2564	}
2565
2566	public void syncRosterToDisk(final Account account) {
2567		Runnable runnable = new Runnable() {
2568
2569			@Override
2570			public void run() {
2571				databaseBackend.writeRoster(account.getRoster());
2572			}
2573		};
2574		mDatabaseExecutor.execute(runnable);
2575
2576	}
2577
2578	public List<String> getKnownHosts() {
2579		final List<String> hosts = new ArrayList<>();
2580		for (final Account account : getAccounts()) {
2581			if (!hosts.contains(account.getServer().toString())) {
2582				hosts.add(account.getServer().toString());
2583			}
2584			for (final Contact contact : account.getRoster().getContacts()) {
2585				if (contact.showInRoster()) {
2586					final String server = contact.getServer().toString();
2587					if (server != null && !hosts.contains(server)) {
2588						hosts.add(server);
2589					}
2590				}
2591			}
2592		}
2593		return hosts;
2594	}
2595
2596	public List<String> getKnownConferenceHosts() {
2597		final ArrayList<String> mucServers = new ArrayList<>();
2598		for (final Account account : accounts) {
2599			if (account.getXmppConnection() != null) {
2600				final String server = account.getXmppConnection().getMucServer();
2601				if (server != null && !mucServers.contains(server)) {
2602					mucServers.add(server);
2603				}
2604			}
2605		}
2606		return mucServers;
2607	}
2608
2609	public void sendMessagePacket(Account account, MessagePacket packet) {
2610		XmppConnection connection = account.getXmppConnection();
2611		if (connection != null) {
2612			connection.sendMessagePacket(packet);
2613		}
2614	}
2615
2616	public void sendPresencePacket(Account account, PresencePacket packet) {
2617		XmppConnection connection = account.getXmppConnection();
2618		if (connection != null) {
2619			connection.sendPresencePacket(packet);
2620		}
2621	}
2622
2623	public void sendIqPacket(final Account account, final IqPacket packet, final OnIqPacketReceived callback) {
2624		final XmppConnection connection = account.getXmppConnection();
2625		if (connection != null) {
2626			connection.sendIqPacket(packet, callback);
2627		}
2628	}
2629
2630	public void sendPresence(final Account account) {
2631		sendPresencePacket(account, mPresenceGenerator.selfPresence(account, getTargetPresence()));
2632	}
2633
2634	public void refreshAllPresences() {
2635		for (Account account : getAccounts()) {
2636			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
2637				sendPresence(account);
2638			}
2639		}
2640	}
2641
2642	public void sendOfflinePresence(final Account account) {
2643		sendPresencePacket(account, mPresenceGenerator.sendOfflinePresence(account));
2644	}
2645
2646	public MessageGenerator getMessageGenerator() {
2647		return this.mMessageGenerator;
2648	}
2649
2650	public PresenceGenerator getPresenceGenerator() {
2651		return this.mPresenceGenerator;
2652	}
2653
2654	public IqGenerator getIqGenerator() {
2655		return this.mIqGenerator;
2656	}
2657
2658	public IqParser getIqParser() {
2659		return this.mIqParser;
2660	}
2661
2662	public JingleConnectionManager getJingleConnectionManager() {
2663		return this.mJingleConnectionManager;
2664	}
2665
2666	public MessageArchiveService getMessageArchiveService() {
2667		return this.mMessageArchiveService;
2668	}
2669
2670	public List<Contact> findContacts(Jid jid) {
2671		ArrayList<Contact> contacts = new ArrayList<>();
2672		for (Account account : getAccounts()) {
2673			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
2674				Contact contact = account.getRoster().getContactFromRoster(jid);
2675				if (contact != null) {
2676					contacts.add(contact);
2677				}
2678			}
2679		}
2680		return contacts;
2681	}
2682
2683	public NotificationService getNotificationService() {
2684		return this.mNotificationService;
2685	}
2686
2687	public HttpConnectionManager getHttpConnectionManager() {
2688		return this.mHttpConnectionManager;
2689	}
2690
2691	public void resendFailedMessages(final Message message) {
2692		final Collection<Message> messages = new ArrayList<>();
2693		Message current = message;
2694		while (current.getStatus() == Message.STATUS_SEND_FAILED) {
2695			messages.add(current);
2696			if (current.mergeable(current.next())) {
2697				current = current.next();
2698			} else {
2699				break;
2700			}
2701		}
2702		for (final Message msg : messages) {
2703			msg.setTime(System.currentTimeMillis());
2704			markMessage(msg, Message.STATUS_WAITING);
2705			this.resendMessage(msg,false);
2706		}
2707	}
2708
2709	public void clearConversationHistory(final Conversation conversation) {
2710		conversation.clearMessages();
2711		conversation.setHasMessagesLeftOnServer(false); //avoid messages getting loaded through mam
2712		conversation.resetLastMessageTransmitted();
2713		new Thread(new Runnable() {
2714			@Override
2715			public void run() {
2716				databaseBackend.deleteMessagesInConversation(conversation);
2717			}
2718		}).start();
2719	}
2720
2721	public void sendBlockRequest(final Blockable blockable) {
2722		if (blockable != null && blockable.getBlockedJid() != null) {
2723			final Jid jid = blockable.getBlockedJid();
2724			this.sendIqPacket(blockable.getAccount(), getIqGenerator().generateSetBlockRequest(jid), new OnIqPacketReceived() {
2725
2726				@Override
2727				public void onIqPacketReceived(final Account account, final IqPacket packet) {
2728					if (packet.getType() == IqPacket.TYPE.RESULT) {
2729						account.getBlocklist().add(jid);
2730						updateBlocklistUi(OnUpdateBlocklist.Status.BLOCKED);
2731					}
2732				}
2733			});
2734		}
2735	}
2736
2737	public void sendUnblockRequest(final Blockable blockable) {
2738		if (blockable != null && blockable.getJid() != null) {
2739			final Jid jid = blockable.getBlockedJid();
2740			this.sendIqPacket(blockable.getAccount(), getIqGenerator().generateSetUnblockRequest(jid), new OnIqPacketReceived() {
2741				@Override
2742				public void onIqPacketReceived(final Account account, final IqPacket packet) {
2743					if (packet.getType() == IqPacket.TYPE.RESULT) {
2744						account.getBlocklist().remove(jid);
2745						updateBlocklistUi(OnUpdateBlocklist.Status.UNBLOCKED);
2746					}
2747				}
2748			});
2749		}
2750	}
2751
2752	public interface OnAccountCreated {
2753		void onAccountCreated(Account account);
2754		void informUser(int r);
2755	}
2756
2757	public interface OnMoreMessagesLoaded {
2758		void onMoreMessagesLoaded(int count, Conversation conversation);
2759
2760		void informUser(int r);
2761	}
2762
2763	public interface OnAccountPasswordChanged {
2764		void onPasswordChangeSucceeded();
2765
2766		void onPasswordChangeFailed();
2767	}
2768
2769	public interface OnAffiliationChanged {
2770		void onAffiliationChangedSuccessful(Jid jid);
2771
2772		void onAffiliationChangeFailed(Jid jid, int resId);
2773	}
2774
2775	public interface OnRoleChanged {
2776		void onRoleChangedSuccessful(String nick);
2777
2778		void onRoleChangeFailed(String nick, int resid);
2779	}
2780
2781	public interface OnConversationUpdate {
2782		void onConversationUpdate();
2783	}
2784
2785	public interface OnAccountUpdate {
2786		void onAccountUpdate();
2787	}
2788
2789	public interface OnRosterUpdate {
2790		void onRosterUpdate();
2791	}
2792
2793	public interface OnMucRosterUpdate {
2794		void onMucRosterUpdate();
2795	}
2796
2797	public interface OnConferenceConfigurationFetched {
2798		void onConferenceConfigurationFetched(Conversation conversation);
2799	}
2800
2801	public interface OnConferenceOptionsPushed {
2802		void onPushSucceeded();
2803
2804		void onPushFailed();
2805	}
2806
2807	public interface OnShowErrorToast {
2808		void onShowErrorToast(int resId);
2809	}
2810
2811	public class XmppConnectionBinder extends Binder {
2812		public XmppConnectionService getService() {
2813			return XmppConnectionService.this;
2814		}
2815	}
2816}