XmppConnectionService.java

   1package eu.siacs.conversations.services;
   2
   3import java.security.SecureRandom;
   4import java.text.SimpleDateFormat;
   5import java.util.ArrayList;
   6import java.util.Collections;
   7import java.util.Comparator;
   8import java.util.Date;
   9import java.util.Hashtable;
  10import java.util.List;
  11import java.util.Locale;
  12import java.util.TimeZone;
  13import java.util.concurrent.CopyOnWriteArrayList;
  14
  15import org.openintents.openpgp.util.OpenPgpApi;
  16import org.openintents.openpgp.util.OpenPgpServiceConnection;
  17
  18import de.duenndns.ssl.MemorizingTrustManager;
  19
  20import net.java.otr4j.OtrException;
  21import net.java.otr4j.session.Session;
  22import net.java.otr4j.session.SessionStatus;
  23import eu.siacs.conversations.Config;
  24import eu.siacs.conversations.R;
  25import eu.siacs.conversations.crypto.PgpEngine;
  26import eu.siacs.conversations.entities.Account;
  27import eu.siacs.conversations.entities.Bookmark;
  28import eu.siacs.conversations.entities.Contact;
  29import eu.siacs.conversations.entities.Conversation;
  30import eu.siacs.conversations.entities.Message;
  31import eu.siacs.conversations.entities.MucOptions;
  32import eu.siacs.conversations.entities.MucOptions.OnRenameListener;
  33import eu.siacs.conversations.entities.Presences;
  34import eu.siacs.conversations.generator.IqGenerator;
  35import eu.siacs.conversations.generator.MessageGenerator;
  36import eu.siacs.conversations.generator.PresenceGenerator;
  37import eu.siacs.conversations.parser.IqParser;
  38import eu.siacs.conversations.parser.MessageParser;
  39import eu.siacs.conversations.parser.PresenceParser;
  40import eu.siacs.conversations.persistance.DatabaseBackend;
  41import eu.siacs.conversations.persistance.FileBackend;
  42import eu.siacs.conversations.ui.UiCallback;
  43import eu.siacs.conversations.utils.CryptoHelper;
  44import eu.siacs.conversations.utils.ExceptionHelper;
  45import eu.siacs.conversations.utils.OnPhoneContactsLoadedListener;
  46import eu.siacs.conversations.utils.PRNGFixes;
  47import eu.siacs.conversations.utils.PhoneHelper;
  48import eu.siacs.conversations.utils.UIHelper;
  49import eu.siacs.conversations.xml.Element;
  50import eu.siacs.conversations.xmpp.OnBindListener;
  51import eu.siacs.conversations.xmpp.OnContactStatusChanged;
  52import eu.siacs.conversations.xmpp.OnIqPacketReceived;
  53import eu.siacs.conversations.xmpp.OnMessageAcknowledged;
  54import eu.siacs.conversations.xmpp.OnStatusChanged;
  55import eu.siacs.conversations.xmpp.XmppConnection;
  56import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
  57import eu.siacs.conversations.xmpp.jingle.OnJinglePacketReceived;
  58import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
  59import eu.siacs.conversations.xmpp.pep.Avatar;
  60import eu.siacs.conversations.xmpp.stanzas.IqPacket;
  61import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
  62import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
  63import android.annotation.SuppressLint;
  64import android.app.AlarmManager;
  65import android.app.PendingIntent;
  66import android.app.Service;
  67import android.content.Context;
  68import android.content.Intent;
  69import android.content.SharedPreferences;
  70import android.database.ContentObserver;
  71import android.graphics.Bitmap;
  72import android.net.ConnectivityManager;
  73import android.net.NetworkInfo;
  74import android.net.Uri;
  75import android.os.Binder;
  76import android.os.Bundle;
  77import android.os.IBinder;
  78import android.os.PowerManager;
  79import android.os.PowerManager.WakeLock;
  80import android.os.SystemClock;
  81import android.preference.PreferenceManager;
  82import android.provider.ContactsContract;
  83import android.util.Log;
  84
  85public class XmppConnectionService extends Service {
  86
  87	public DatabaseBackend databaseBackend;
  88	private FileBackend fileBackend;
  89
  90	public long startDate;
  91
  92	private static String ACTION_MERGE_PHONE_CONTACTS = "merge_phone_contacts";
  93
  94	private MemorizingTrustManager mMemorizingTrustManager;
  95
  96	private MessageParser mMessageParser = new MessageParser(this);
  97	private PresenceParser mPresenceParser = new PresenceParser(this);
  98	private IqParser mIqParser = new IqParser(this);
  99	private MessageGenerator mMessageGenerator = new MessageGenerator(this);
 100	private PresenceGenerator mPresenceGenerator = new PresenceGenerator(this);
 101
 102	private List<Account> accounts;
 103	private CopyOnWriteArrayList<Conversation> conversations = null;
 104	private JingleConnectionManager mJingleConnectionManager = new JingleConnectionManager(
 105			this);
 106
 107	private OnConversationUpdate mOnConversationUpdate = null;
 108	private int convChangedListenerCount = 0;
 109	private OnAccountUpdate mOnAccountUpdate = null;
 110	private int accountChangedListenerCount = 0;
 111	private OnRosterUpdate mOnRosterUpdate = null;
 112	private int rosterChangedListenerCount = 0;
 113	public OnContactStatusChanged onContactStatusChanged = new OnContactStatusChanged() {
 114
 115		@Override
 116		public void onContactStatusChanged(Contact contact, boolean online) {
 117			Conversation conversation = find(getConversations(), contact);
 118			if (conversation != null) {
 119				conversation.endOtrIfNeeded();
 120				if (online && (contact.getPresences().size() == 1)) {
 121					sendUnsendMessages(conversation);
 122				}
 123			}
 124		}
 125	};
 126
 127	private SecureRandom mRandom;
 128
 129	private ContentObserver contactObserver = new ContentObserver(null) {
 130		@Override
 131		public void onChange(boolean selfChange) {
 132			super.onChange(selfChange);
 133			Intent intent = new Intent(getApplicationContext(),
 134					XmppConnectionService.class);
 135			intent.setAction(ACTION_MERGE_PHONE_CONTACTS);
 136			startService(intent);
 137		}
 138	};
 139
 140	private final IBinder mBinder = new XmppConnectionBinder();
 141	private OnStatusChanged statusListener = new OnStatusChanged() {
 142
 143		@Override
 144		public void onStatusChanged(Account account) {
 145			XmppConnection connection = account.getXmppConnection();
 146			if (mOnAccountUpdate != null) {
 147				mOnAccountUpdate.onAccountUpdate();
 148				;
 149			}
 150			if (account.getStatus() == Account.STATUS_ONLINE) {
 151				for (Conversation conversation : account.pendingConferenceLeaves) {
 152					leaveMuc(conversation);
 153				}
 154				for (Conversation conversation : account.pendingConferenceJoins) {
 155					joinMuc(conversation);
 156				}
 157				mJingleConnectionManager.cancelInTransmission();
 158				List<Conversation> conversations = getConversations();
 159				for (int i = 0; i < conversations.size(); ++i) {
 160					if (conversations.get(i).getAccount() == account) {
 161						conversations.get(i).startOtrIfNeeded();
 162						sendUnsendMessages(conversations.get(i));
 163					}
 164				}
 165				if (connection != null && connection.getFeatures().csi()) {
 166					if (checkListeners()) {
 167						Log.d(Config.LOGTAG, account.getJid()
 168								+ " sending csi//inactive");
 169						connection.sendInactive();
 170					} else {
 171						Log.d(Config.LOGTAG, account.getJid()
 172								+ " sending csi//active");
 173						connection.sendActive();
 174					}
 175				}
 176				syncDirtyContacts(account);
 177				scheduleWakeupCall(Config.PING_MAX_INTERVAL, true);
 178			} else if (account.getStatus() == Account.STATUS_OFFLINE) {
 179				resetSendingToWaiting(account);
 180				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 181					int timeToReconnect = mRandom.nextInt(50) + 10;
 182					scheduleWakeupCall(timeToReconnect, false);
 183				}
 184			} else if (account.getStatus() == Account.STATUS_REGISTRATION_SUCCESSFULL) {
 185				databaseBackend.updateAccount(account);
 186				reconnectAccount(account, true);
 187			} else if ((account.getStatus() != Account.STATUS_CONNECTING)
 188					&& (account.getStatus() != Account.STATUS_NO_INTERNET)) {
 189				if (connection != null) {
 190					int next = connection.getTimeToNextAttempt();
 191					Log.d(Config.LOGTAG, account.getJid()
 192							+ ": error connecting account. try again in "
 193							+ next + "s for the "
 194							+ (connection.getAttempt() + 1) + " time");
 195					scheduleWakeupCall((int) (next * 1.2), false);
 196				}
 197			}
 198			UIHelper.showErrorNotification(getApplicationContext(),
 199					getAccounts());
 200		}
 201	};
 202
 203	private OnJinglePacketReceived jingleListener = new OnJinglePacketReceived() {
 204
 205		@Override
 206		public void onJinglePacketReceived(Account account, JinglePacket packet) {
 207			mJingleConnectionManager.deliverPacket(account, packet);
 208		}
 209	};
 210
 211	private OpenPgpServiceConnection pgpServiceConnection;
 212	private PgpEngine mPgpEngine = null;
 213	private Intent pingIntent;
 214	private PendingIntent pendingPingIntent = null;
 215	private WakeLock wakeLock;
 216	private PowerManager pm;
 217	private OnBindListener mOnBindListener = new OnBindListener() {
 218
 219		@Override
 220		public void onBind(final Account account) {
 221			account.getRoster().clearPresences();
 222			account.clearPresences(); // self presences
 223			account.pendingConferenceJoins.clear();
 224			account.pendingConferenceLeaves.clear();
 225			fetchRosterFromServer(account);
 226			fetchBookmarks(account);
 227			sendPresencePacket(account,
 228					mPresenceGenerator.sendPresence(account));
 229			connectMultiModeConversations(account);
 230			updateConversationUi();
 231		}
 232	};
 233
 234	private OnMessageAcknowledged mOnMessageAcknowledgedListener = new OnMessageAcknowledged() {
 235
 236		@Override
 237		public void onMessageAcknowledged(Account account, String uuid) {
 238			for (Conversation conversation : getConversations()) {
 239				if (conversation.getAccount() == account) {
 240					for (Message message : conversation.getMessages()) {
 241						if ((message.getStatus() == Message.STATUS_UNSEND || message
 242								.getStatus() == Message.STATUS_WAITING)
 243								&& message.getUuid().equals(uuid)) {
 244							markMessage(message, Message.STATUS_SEND);
 245							return;
 246						}
 247					}
 248				}
 249			}
 250		}
 251	};
 252
 253	public PgpEngine getPgpEngine() {
 254		if (pgpServiceConnection.isBound()) {
 255			if (this.mPgpEngine == null) {
 256				this.mPgpEngine = new PgpEngine(new OpenPgpApi(
 257						getApplicationContext(),
 258						pgpServiceConnection.getService()), this);
 259			}
 260			return mPgpEngine;
 261		} else {
 262			return null;
 263		}
 264
 265	}
 266
 267	public FileBackend getFileBackend() {
 268		return this.fileBackend;
 269	}
 270
 271	public Message attachImageToConversation(final Conversation conversation,
 272			final Uri uri, final UiCallback<Message> callback) {
 273		final Message message;
 274		if (conversation.getNextEncryption(forceEncryption()) == Message.ENCRYPTION_PGP) {
 275			message = new Message(conversation, "",
 276					Message.ENCRYPTION_DECRYPTED);
 277		} else {
 278			message = new Message(conversation, "",
 279					conversation.getNextEncryption(forceEncryption()));
 280		}
 281		message.setPresence(conversation.getNextPresence());
 282		message.setType(Message.TYPE_IMAGE);
 283		message.setStatus(Message.STATUS_OFFERED);
 284		new Thread(new Runnable() {
 285
 286			@Override
 287			public void run() {
 288				try {
 289					getFileBackend().copyImageToPrivateStorage(message, uri);
 290					if (conversation.getNextEncryption(forceEncryption()) == Message.ENCRYPTION_PGP) {
 291						getPgpEngine().encrypt(message, callback);
 292					} else {
 293						callback.success(message);
 294					}
 295				} catch (FileBackend.ImageCopyException e) {
 296					callback.error(e.getResId(), message);
 297				}
 298			}
 299		}).start();
 300		return message;
 301	}
 302
 303	public Conversation find(Bookmark bookmark) {
 304		return find(bookmark.getAccount(), bookmark.getJid());
 305	}
 306
 307	public Conversation find(Account account, String jid) {
 308		return find(getConversations(), account, jid);
 309	}
 310
 311	public class XmppConnectionBinder extends Binder {
 312		public XmppConnectionService getService() {
 313			return XmppConnectionService.this;
 314		}
 315	}
 316
 317	@Override
 318	public int onStartCommand(Intent intent, int flags, int startId) {
 319		if ((intent != null)
 320				&& (ACTION_MERGE_PHONE_CONTACTS.equals(intent.getAction()))) {
 321			mergePhoneContactsWithRoster();
 322			return START_STICKY;
 323		} else if ((intent != null)
 324				&& (Intent.ACTION_SHUTDOWN.equals(intent.getAction()))) {
 325			logoutAndSave();
 326			return START_NOT_STICKY;
 327		}
 328		this.wakeLock.acquire();
 329		ConnectivityManager cm = (ConnectivityManager) getApplicationContext()
 330				.getSystemService(Context.CONNECTIVITY_SERVICE);
 331		NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
 332		boolean isConnected = activeNetwork != null
 333				&& activeNetwork.isConnected();
 334
 335		for (Account account : accounts) {
 336			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 337				if (!isConnected) {
 338					account.setStatus(Account.STATUS_NO_INTERNET);
 339					if (statusListener != null) {
 340						statusListener.onStatusChanged(account);
 341					}
 342				} else {
 343					if (account.getStatus() == Account.STATUS_NO_INTERNET) {
 344						account.setStatus(Account.STATUS_OFFLINE);
 345						if (statusListener != null) {
 346							statusListener.onStatusChanged(account);
 347						}
 348					}
 349					if (account.getStatus() == Account.STATUS_ONLINE) {
 350						long lastReceived = account.getXmppConnection()
 351								.getLastPacketReceived();
 352						long lastSent = account.getXmppConnection()
 353								.getLastPingSent();
 354						if (lastSent - lastReceived >= Config.PING_TIMEOUT * 1000) {
 355							Log.d(Config.LOGTAG, account.getJid()
 356									+ ": ping timeout");
 357							this.reconnectAccount(account, true);
 358						} else if (SystemClock.elapsedRealtime() - lastReceived >= Config.PING_MIN_INTERVAL * 1000) {
 359							account.getXmppConnection().sendPing();
 360							this.scheduleWakeupCall(2, false);
 361						}
 362					} else if (account.getStatus() == Account.STATUS_OFFLINE) {
 363						if (account.getXmppConnection() == null) {
 364							account.setXmppConnection(this
 365									.createConnection(account));
 366						}
 367						new Thread(account.getXmppConnection()).start();
 368					} else if ((account.getStatus() == Account.STATUS_CONNECTING)
 369							&& ((SystemClock.elapsedRealtime() - account
 370									.getXmppConnection().getLastConnect()) / 1000 >= Config.CONNECT_TIMEOUT)) {
 371						Log.d(Config.LOGTAG, account.getJid()
 372								+ ": time out during connect reconnecting");
 373						reconnectAccount(account, true);
 374					} else {
 375						if (account.getXmppConnection().getTimeToNextAttempt() <= 0) {
 376							reconnectAccount(account, true);
 377						}
 378					}
 379					// in any case. reschedule wakup call
 380					this.scheduleWakeupCall(Config.PING_MAX_INTERVAL, true);
 381				}
 382				if (mOnAccountUpdate != null) {
 383					mOnAccountUpdate.onAccountUpdate();
 384				}
 385			}
 386		}
 387		if (wakeLock.isHeld()) {
 388			try {
 389				wakeLock.release();
 390			} catch (RuntimeException re) {
 391			}
 392		}
 393		return START_STICKY;
 394	}
 395
 396	@SuppressLint("TrulyRandom")
 397	@Override
 398	public void onCreate() {
 399		ExceptionHelper.init(getApplicationContext());
 400		PRNGFixes.apply();
 401		this.mRandom = new SecureRandom();
 402		this.mMemorizingTrustManager = new MemorizingTrustManager(
 403				getApplicationContext());
 404		this.databaseBackend = DatabaseBackend
 405				.getInstance(getApplicationContext());
 406		this.fileBackend = new FileBackend(getApplicationContext());
 407		this.accounts = databaseBackend.getAccounts();
 408
 409		for (Account account : this.accounts) {
 410			this.databaseBackend.readRoster(account.getRoster());
 411		}
 412		this.mergePhoneContactsWithRoster();
 413		this.getConversations();
 414
 415		getContentResolver().registerContentObserver(
 416				ContactsContract.Contacts.CONTENT_URI, true, contactObserver);
 417		this.pgpServiceConnection = new OpenPgpServiceConnection(
 418				getApplicationContext(), "org.sufficientlysecure.keychain");
 419		this.pgpServiceConnection.bindToService();
 420
 421		this.pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 422		this.wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
 423				"XmppConnectionService");
 424	}
 425
 426	@Override
 427	public void onDestroy() {
 428		super.onDestroy();
 429		this.logoutAndSave();
 430	}
 431
 432	@Override
 433	public void onTaskRemoved(Intent rootIntent) {
 434		super.onTaskRemoved(rootIntent);
 435		this.logoutAndSave();
 436	}
 437
 438	private void logoutAndSave() {
 439		for (Account account : accounts) {
 440			databaseBackend.writeRoster(account.getRoster());
 441			if (account.getXmppConnection() != null) {
 442				disconnect(account, false);
 443			}
 444		}
 445		Context context = getApplicationContext();
 446		AlarmManager alarmManager = (AlarmManager) context
 447				.getSystemService(Context.ALARM_SERVICE);
 448		Intent intent = new Intent(context, EventReceiver.class);
 449		alarmManager.cancel(PendingIntent.getBroadcast(context, 0, intent, 0));
 450		Log.d(Config.LOGTAG, "good bye");
 451		stopSelf();
 452	}
 453
 454	protected void scheduleWakeupCall(int seconds, boolean ping) {
 455		long timeToWake = SystemClock.elapsedRealtime() + seconds * 1000;
 456		Context context = getApplicationContext();
 457		AlarmManager alarmManager = (AlarmManager) context
 458				.getSystemService(Context.ALARM_SERVICE);
 459
 460		if (ping) {
 461			if (this.pingIntent == null) {
 462				this.pingIntent = new Intent(context, EventReceiver.class);
 463				this.pingIntent.setAction("ping");
 464				this.pingIntent.putExtra("time", timeToWake);
 465				this.pendingPingIntent = PendingIntent.getBroadcast(context, 0,
 466						this.pingIntent, 0);
 467				alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
 468						timeToWake, pendingPingIntent);
 469			} else {
 470				long scheduledTime = this.pingIntent.getLongExtra("time", 0);
 471				if (scheduledTime < SystemClock.elapsedRealtime()
 472						|| (scheduledTime > timeToWake)) {
 473					this.pingIntent.putExtra("time", timeToWake);
 474					alarmManager.cancel(this.pendingPingIntent);
 475					this.pendingPingIntent = PendingIntent.getBroadcast(
 476							context, 0, this.pingIntent, 0);
 477					alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
 478							timeToWake, pendingPingIntent);
 479				}
 480			}
 481		} else {
 482			Intent intent = new Intent(context, EventReceiver.class);
 483			intent.setAction("ping_check");
 484			PendingIntent alarmIntent = PendingIntent.getBroadcast(context, 0,
 485					intent, 0);
 486			alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake,
 487					alarmIntent);
 488		}
 489
 490	}
 491
 492	public XmppConnection createConnection(Account account) {
 493		SharedPreferences sharedPref = getPreferences();
 494		account.setResource(sharedPref.getString("resource", "mobile")
 495				.toLowerCase(Locale.getDefault()));
 496		XmppConnection connection = new XmppConnection(account, this);
 497		connection.setOnMessagePacketReceivedListener(this.mMessageParser);
 498		connection.setOnStatusChangedListener(this.statusListener);
 499		connection.setOnPresencePacketReceivedListener(this.mPresenceParser);
 500		connection.setOnUnregisteredIqPacketReceivedListener(this.mIqParser);
 501		connection.setOnJinglePacketReceivedListener(this.jingleListener);
 502		connection.setOnBindListener(this.mOnBindListener);
 503		connection
 504				.setOnMessageAcknowledgeListener(this.mOnMessageAcknowledgedListener);
 505		return connection;
 506	}
 507
 508	synchronized public void sendMessage(Message message) {
 509		Account account = message.getConversation().getAccount();
 510		Conversation conv = message.getConversation();
 511		MessagePacket packet = null;
 512		boolean saveInDb = true;
 513		boolean send = false;
 514		if (account.getStatus() == Account.STATUS_ONLINE) {
 515			if (message.getType() == Message.TYPE_IMAGE) {
 516				if (message.getPresence() != null) {
 517					if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 518						if (!conv.hasValidOtrSession()
 519								&& (message.getPresence() != null)) {
 520							conv.startOtrSession(this, message.getPresence(),
 521									true);
 522							message.setStatus(Message.STATUS_WAITING);
 523						} else if (conv.hasValidOtrSession()
 524								&& conv.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) {
 525							mJingleConnectionManager
 526									.createNewConnection(message);
 527						} else if (message.getPresence() == null) {
 528							message.setStatus(Message.STATUS_WAITING);
 529						}
 530					} else {
 531						mJingleConnectionManager.createNewConnection(message);
 532					}
 533				} else {
 534					message.setStatus(Message.STATUS_WAITING);
 535				}
 536			} else {
 537				if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 538					if (!conv.hasValidOtrSession()
 539							&& (message.getPresence() != null)) {
 540						conv.startOtrSession(this, message.getPresence(), true);
 541						message.setStatus(Message.STATUS_WAITING);
 542					} else if (conv.hasValidOtrSession()
 543							&& conv.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) {
 544						message.setPresence(conv.getOtrSession().getSessionID()
 545								.getUserID());
 546						packet = mMessageGenerator.generateOtrChat(message);
 547						send = true;
 548
 549					} else if (message.getPresence() == null) {
 550						message.setStatus(Message.STATUS_WAITING);
 551					}
 552				} else if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 553					message.getConversation().endOtrIfNeeded();
 554					failWaitingOtrMessages(message.getConversation());
 555					packet = mMessageGenerator.generatePgpChat(message);
 556					send = true;
 557				} else {
 558					message.getConversation().endOtrIfNeeded();
 559					failWaitingOtrMessages(message.getConversation());
 560					packet = mMessageGenerator.generateChat(message);
 561					send = true;
 562				}
 563			}
 564		} else {
 565			message.setStatus(Message.STATUS_WAITING);
 566			if (message.getType() == Message.TYPE_TEXT) {
 567				if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 568					String pgpBody = message.getEncryptedBody();
 569					String decryptedBody = message.getBody();
 570					message.setBody(pgpBody);
 571					message.setEncryption(Message.ENCRYPTION_PGP);
 572					databaseBackend.createMessage(message);
 573					saveInDb = false;
 574					message.setBody(decryptedBody);
 575					message.setEncryption(Message.ENCRYPTION_DECRYPTED);
 576				} else if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 577					if (conv.hasValidOtrSession()) {
 578						message.setPresence(conv.getOtrSession().getSessionID()
 579								.getUserID());
 580					} else if (!conv.hasValidOtrSession()
 581							&& message.getPresence() != null) {
 582						conv.startOtrSession(this, message.getPresence(), false);
 583					}
 584				}
 585			}
 586
 587		}
 588		conv.getMessages().add(message);
 589		if (!account.getXmppConnection().getFeatures().sm()
 590				&& conv.getMode() != Conversation.MODE_MULTI) {
 591			message.setStatus(Message.STATUS_SEND);
 592		}
 593		if (saveInDb) {
 594			if (message.getEncryption() == Message.ENCRYPTION_NONE
 595					|| saveEncryptedMessages()) {
 596				databaseBackend.createMessage(message);
 597			}
 598		}
 599		if ((send) && (packet != null)) {
 600			sendMessagePacket(account, packet);
 601		}
 602		updateConversationUi();
 603	}
 604
 605	private void sendUnsendMessages(Conversation conversation) {
 606		for (int i = 0; i < conversation.getMessages().size(); ++i) {
 607			int status = conversation.getMessages().get(i).getStatus();
 608			if (status == Message.STATUS_WAITING) {
 609				resendMessage(conversation.getMessages().get(i));
 610			}
 611		}
 612	}
 613
 614	private void resendMessage(Message message) {
 615		Account account = message.getConversation().getAccount();
 616		MessagePacket packet = null;
 617		if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 618			Presences presences = message.getConversation().getContact()
 619					.getPresences();
 620			if (!message.getConversation().hasValidOtrSession()) {
 621				if ((message.getPresence() != null)
 622						&& (presences.has(message.getPresence()))) {
 623					message.getConversation().startOtrSession(this,
 624							message.getPresence(), true);
 625				} else {
 626					if (presences.size() == 1) {
 627						String presence = presences.asStringArray()[0];
 628						message.getConversation().startOtrSession(this,
 629								presence, true);
 630					}
 631				}
 632			} else {
 633				if (message.getConversation().getOtrSession()
 634						.getSessionStatus() == SessionStatus.ENCRYPTED) {
 635					if (message.getType() == Message.TYPE_TEXT) {
 636						packet = mMessageGenerator.generateOtrChat(message,
 637								true);
 638					} else if (message.getType() == Message.TYPE_IMAGE) {
 639						mJingleConnectionManager.createNewConnection(message);
 640					}
 641				}
 642			}
 643		} else if (message.getType() == Message.TYPE_TEXT) {
 644			if (message.getEncryption() == Message.ENCRYPTION_NONE) {
 645				packet = mMessageGenerator.generateChat(message, true);
 646			} else if ((message.getEncryption() == Message.ENCRYPTION_DECRYPTED)
 647					|| (message.getEncryption() == Message.ENCRYPTION_PGP)) {
 648				packet = mMessageGenerator.generatePgpChat(message, true);
 649			}
 650		} else if (message.getType() == Message.TYPE_IMAGE) {
 651			Presences presences = message.getConversation().getContact()
 652					.getPresences();
 653			if ((message.getPresence() != null)
 654					&& (presences.has(message.getPresence()))) {
 655				markMessage(message, Message.STATUS_OFFERED);
 656				mJingleConnectionManager.createNewConnection(message);
 657			} else {
 658				if (presences.size() == 1) {
 659					String presence = presences.asStringArray()[0];
 660					message.setPresence(presence);
 661					markMessage(message, Message.STATUS_OFFERED);
 662					mJingleConnectionManager.createNewConnection(message);
 663				}
 664			}
 665		}
 666		if (packet != null) {
 667			if (!account.getXmppConnection().getFeatures().sm()
 668					&& message.getConversation().getMode() != Conversation.MODE_MULTI) {
 669				markMessage(message, Message.STATUS_SEND);
 670			} else {
 671				markMessage(message, Message.STATUS_UNSEND);
 672			}
 673			sendMessagePacket(account, packet);
 674		}
 675	}
 676
 677	public void fetchRosterFromServer(Account account) {
 678		IqPacket iqPacket = new IqPacket(IqPacket.TYPE_GET);
 679		if (!"".equals(account.getRosterVersion())) {
 680			Log.d(Config.LOGTAG, account.getJid()
 681					+ ": fetching roster version " + account.getRosterVersion());
 682		} else {
 683			Log.d(Config.LOGTAG, account.getJid() + ": fetching roster");
 684		}
 685		iqPacket.query("jabber:iq:roster").setAttribute("ver",
 686				account.getRosterVersion());
 687		account.getXmppConnection().sendIqPacket(iqPacket,
 688				new OnIqPacketReceived() {
 689
 690					@Override
 691					public void onIqPacketReceived(final Account account,
 692							IqPacket packet) {
 693						Element query = packet.findChild("query");
 694						if (query != null) {
 695							account.getRoster().markAllAsNotInRoster();
 696							mIqParser.rosterItems(account, query);
 697						}
 698					}
 699				});
 700	}
 701
 702	public void fetchBookmarks(Account account) {
 703		IqPacket iqPacket = new IqPacket(IqPacket.TYPE_GET);
 704		Element query = iqPacket.query("jabber:iq:private");
 705		query.addChild("storage", "storage:bookmarks");
 706		OnIqPacketReceived callback = new OnIqPacketReceived() {
 707
 708			@Override
 709			public void onIqPacketReceived(Account account, IqPacket packet) {
 710				Element query = packet.query();
 711				List<Bookmark> bookmarks = new CopyOnWriteArrayList<Bookmark>();
 712				Element storage = query.findChild("storage",
 713						"storage:bookmarks");
 714				if (storage != null) {
 715					for (Element item : storage.getChildren()) {
 716						if (item.getName().equals("conference")) {
 717							Bookmark bookmark = Bookmark.parse(item, account);
 718							bookmarks.add(bookmark);
 719							Conversation conversation = find(bookmark);
 720							if (conversation != null) {
 721								conversation.setBookmark(bookmark);
 722							} else {
 723								if (bookmark.autojoin()) {
 724									conversation = findOrCreateConversation(
 725											account, bookmark.getJid(), true);
 726									conversation.setBookmark(bookmark);
 727									joinMuc(conversation);
 728								}
 729							}
 730						}
 731					}
 732				}
 733				account.setBookmarks(bookmarks);
 734			}
 735		};
 736		sendIqPacket(account, iqPacket, callback);
 737
 738	}
 739
 740	public void pushBookmarks(Account account) {
 741		IqPacket iqPacket = new IqPacket(IqPacket.TYPE_SET);
 742		Element query = iqPacket.query("jabber:iq:private");
 743		Element storage = query.addChild("storage", "storage:bookmarks");
 744		for (Bookmark bookmark : account.getBookmarks()) {
 745			storage.addChild(bookmark.toElement());
 746		}
 747		sendIqPacket(account, iqPacket, null);
 748	}
 749
 750	private void mergePhoneContactsWithRoster() {
 751		PhoneHelper.loadPhoneContacts(getApplicationContext(),
 752				new OnPhoneContactsLoadedListener() {
 753					@Override
 754					public void onPhoneContactsLoaded(List<Bundle> phoneContacts) {
 755						for (Account account : accounts) {
 756							account.getRoster().clearSystemAccounts();
 757						}
 758						for (Bundle phoneContact : phoneContacts) {
 759							for (Account account : accounts) {
 760								String jid = phoneContact.getString("jid");
 761								Contact contact = account.getRoster()
 762										.getContact(jid);
 763								String systemAccount = phoneContact
 764										.getInt("phoneid")
 765										+ "#"
 766										+ phoneContact.getString("lookup");
 767								contact.setSystemAccount(systemAccount);
 768								contact.setPhotoUri(phoneContact
 769										.getString("photouri"));
 770								contact.setSystemName(phoneContact
 771										.getString("displayname"));
 772							}
 773						}
 774					}
 775				});
 776	}
 777
 778	public List<Conversation> getConversations() {
 779		if (this.conversations == null) {
 780			Hashtable<String, Account> accountLookupTable = new Hashtable<String, Account>();
 781			for (Account account : this.accounts) {
 782				accountLookupTable.put(account.getUuid(), account);
 783			}
 784			this.conversations = databaseBackend
 785					.getConversations(Conversation.STATUS_AVAILABLE);
 786			for (Conversation conv : this.conversations) {
 787				Account account = accountLookupTable.get(conv.getAccountUuid());
 788				conv.setAccount(account);
 789				conv.setMessages(databaseBackend.getMessages(conv, 50));
 790			}
 791		}
 792
 793		return this.conversations;
 794	}
 795
 796	public void populateWithOrderedConversations(List<Conversation> list) {
 797		populateWithOrderedConversations(list, true);
 798	}
 799
 800	public void populateWithOrderedConversations(List<Conversation> list,
 801			boolean includeConferences) {
 802		list.clear();
 803		if (includeConferences) {
 804			list.addAll(getConversations());
 805		} else {
 806			for (Conversation conversation : getConversations()) {
 807				if (conversation.getMode() == Conversation.MODE_SINGLE) {
 808					list.add(conversation);
 809				}
 810			}
 811		}
 812		Collections.sort(list, new Comparator<Conversation>() {
 813			@Override
 814			public int compare(Conversation lhs, Conversation rhs) {
 815				Message left = lhs.getLatestMessage();
 816				Message right = rhs.getLatestMessage();
 817				if (left.getTimeSent() > right.getTimeSent()) {
 818					return -1;
 819				} else if (left.getTimeSent() < right.getTimeSent()) {
 820					return 1;
 821				} else {
 822					return 0;
 823				}
 824			}
 825		});
 826	}
 827
 828	public int loadMoreMessages(Conversation conversation, long timestamp) {
 829		List<Message> messages = databaseBackend.getMessages(conversation, 50,
 830				timestamp);
 831		for (Message message : messages) {
 832			message.setConversation(conversation);
 833		}
 834		conversation.getMessages().addAll(0, messages);
 835		return messages.size();
 836	}
 837
 838	public List<Account> getAccounts() {
 839		return this.accounts;
 840	}
 841
 842	public Conversation find(List<Conversation> haystack, Contact contact) {
 843		for (Conversation conversation : haystack) {
 844			if (conversation.getContact() == contact) {
 845				return conversation;
 846			}
 847		}
 848		return null;
 849	}
 850
 851	public Conversation find(List<Conversation> haystack, Account account,
 852			String jid) {
 853		for (Conversation conversation : haystack) {
 854			if ((account == null || conversation.getAccount().equals(account))
 855					&& (conversation.getContactJid().split("/", 2)[0]
 856							.equals(jid))) {
 857				return conversation;
 858			}
 859		}
 860		return null;
 861	}
 862
 863	public Conversation findOrCreateConversation(Account account, String jid,
 864			boolean muc) {
 865		Conversation conversation = find(account, jid);
 866		if (conversation != null) {
 867			return conversation;
 868		}
 869		conversation = databaseBackend.findConversation(account, jid);
 870		if (conversation != null) {
 871			conversation.setStatus(Conversation.STATUS_AVAILABLE);
 872			conversation.setAccount(account);
 873			if (muc) {
 874				conversation.setMode(Conversation.MODE_MULTI);
 875			} else {
 876				conversation.setMode(Conversation.MODE_SINGLE);
 877			}
 878			conversation.setMessages(databaseBackend.getMessages(conversation,
 879					50));
 880			this.databaseBackend.updateConversation(conversation);
 881		} else {
 882			String conversationName;
 883			Contact contact = account.getRoster().getContact(jid);
 884			if (contact != null) {
 885				conversationName = contact.getDisplayName();
 886			} else {
 887				conversationName = jid.split("@")[0];
 888			}
 889			if (muc) {
 890				conversation = new Conversation(conversationName, account, jid,
 891						Conversation.MODE_MULTI);
 892			} else {
 893				conversation = new Conversation(conversationName, account, jid,
 894						Conversation.MODE_SINGLE);
 895			}
 896			this.databaseBackend.createConversation(conversation);
 897		}
 898		this.conversations.add(conversation);
 899		updateConversationUi();
 900		return conversation;
 901	}
 902
 903	public void archiveConversation(Conversation conversation) {
 904		if (conversation.getMode() == Conversation.MODE_MULTI) {
 905			Bookmark bookmark = conversation.getBookmark();
 906			if (bookmark != null && bookmark.autojoin()) {
 907				bookmark.setAutojoin(false);
 908				pushBookmarks(bookmark.getAccount());
 909			}
 910			leaveMuc(conversation);
 911		} else {
 912			conversation.endOtrIfNeeded();
 913		}
 914		this.databaseBackend.updateConversation(conversation);
 915		this.conversations.remove(conversation);
 916		updateConversationUi();
 917	}
 918
 919	public void clearConversationHistory(Conversation conversation) {
 920		this.databaseBackend.deleteMessagesInConversation(conversation);
 921		this.fileBackend.removeFiles(conversation);
 922		conversation.getMessages().clear();
 923		updateConversationUi();
 924	}
 925
 926	public int getConversationCount() {
 927		return this.databaseBackend.getConversationCount();
 928	}
 929
 930	public void createAccount(Account account) {
 931		databaseBackend.createAccount(account);
 932		this.accounts.add(account);
 933		this.reconnectAccount(account, false);
 934		updateAccountUi();
 935	}
 936
 937	public void updateAccount(Account account) {
 938		this.statusListener.onStatusChanged(account);
 939		databaseBackend.updateAccount(account);
 940		reconnectAccount(account, false);
 941		updateAccountUi();
 942		UIHelper.showErrorNotification(getApplicationContext(), getAccounts());
 943	}
 944
 945	public void deleteAccount(Account account) {
 946		for (Conversation conversation : conversations) {
 947			if (conversation.getAccount() == account) {
 948				if (conversation.getMode() == Conversation.MODE_MULTI) {
 949					leaveMuc(conversation);
 950				} else if (conversation.getMode() == Conversation.MODE_SINGLE) {
 951					conversation.endOtrIfNeeded();
 952				}
 953				conversations.remove(conversation);
 954			}
 955		}
 956		if (account.getXmppConnection() != null) {
 957			this.disconnect(account, true);
 958		}
 959		databaseBackend.deleteAccount(account);
 960		this.accounts.remove(account);
 961		updateAccountUi();
 962		UIHelper.showErrorNotification(getApplicationContext(), getAccounts());
 963	}
 964
 965	public void setOnConversationListChangedListener(
 966			OnConversationUpdate listener) {
 967		if (checkListeners()) {
 968			switchToForeground();
 969		}
 970		this.mOnConversationUpdate = listener;
 971		this.convChangedListenerCount++;
 972	}
 973
 974	public void removeOnConversationListChangedListener() {
 975		this.convChangedListenerCount--;
 976		if (this.convChangedListenerCount == 0) {
 977			this.mOnConversationUpdate = null;
 978			if (checkListeners()) {
 979				switchToBackground();
 980			}
 981		}
 982	}
 983
 984	public void setOnAccountListChangedListener(OnAccountUpdate listener) {
 985		if (checkListeners()) {
 986			switchToForeground();
 987		}
 988		this.mOnAccountUpdate = listener;
 989		this.accountChangedListenerCount++;
 990	}
 991
 992	public void removeOnAccountListChangedListener() {
 993		this.accountChangedListenerCount--;
 994		if (this.accountChangedListenerCount == 0) {
 995			this.mOnAccountUpdate = null;
 996			if (checkListeners()) {
 997				switchToBackground();
 998			}
 999		}
1000	}
1001
1002	public void setOnRosterUpdateListener(OnRosterUpdate listener) {
1003		if (checkListeners()) {
1004			switchToForeground();
1005		}
1006		this.mOnRosterUpdate = listener;
1007		this.rosterChangedListenerCount++;
1008	}
1009
1010	public void removeOnRosterUpdateListener() {
1011		this.rosterChangedListenerCount--;
1012		if (this.rosterChangedListenerCount == 0) {
1013			this.mOnRosterUpdate = null;
1014			if (checkListeners()) {
1015				switchToBackground();
1016			}
1017		}
1018	}
1019
1020	private boolean checkListeners() {
1021		return (this.mOnAccountUpdate == null
1022				&& this.mOnConversationUpdate == null && this.mOnRosterUpdate == null);
1023	}
1024
1025	private void switchToForeground() {
1026		for (Account account : getAccounts()) {
1027			if (account.getStatus() == Account.STATUS_ONLINE) {
1028				XmppConnection connection = account.getXmppConnection();
1029				if (connection != null && connection.getFeatures().csi()) {
1030					connection.sendActive();
1031					Log.d(Config.LOGTAG, account.getJid()
1032							+ " sending csi//active");
1033				}
1034			}
1035		}
1036	}
1037
1038	private void switchToBackground() {
1039		for (Account account : getAccounts()) {
1040			if (account.getStatus() == Account.STATUS_ONLINE) {
1041				XmppConnection connection = account.getXmppConnection();
1042				if (connection != null && connection.getFeatures().csi()) {
1043					connection.sendInactive();
1044					Log.d(Config.LOGTAG, account.getJid()
1045							+ " sending csi//inactive");
1046				}
1047			}
1048		}
1049	}
1050
1051	public void connectMultiModeConversations(Account account) {
1052		List<Conversation> conversations = getConversations();
1053		for (int i = 0; i < conversations.size(); i++) {
1054			Conversation conversation = conversations.get(i);
1055			if ((conversation.getMode() == Conversation.MODE_MULTI)
1056					&& (conversation.getAccount() == account)) {
1057				joinMuc(conversation);
1058			}
1059		}
1060	}
1061
1062	public void joinMuc(Conversation conversation) {
1063		Account account = conversation.getAccount();
1064		account.pendingConferenceJoins.remove(conversation);
1065		account.pendingConferenceLeaves.remove(conversation);
1066		if (account.getStatus() == Account.STATUS_ONLINE) {
1067			Log.d(Config.LOGTAG,
1068					"joining conversation " + conversation.getContactJid());
1069			String nick = conversation.getMucOptions().getProposedNick();
1070			conversation.getMucOptions().setJoinNick(nick);
1071			PresencePacket packet = new PresencePacket();
1072			String joinJid = conversation.getMucOptions().getJoinJid();
1073			packet.setAttribute("to", conversation.getMucOptions().getJoinJid());
1074			Element x = new Element("x");
1075			x.setAttribute("xmlns", "http://jabber.org/protocol/muc");
1076			if (conversation.getMucOptions().getPassword() != null) {
1077				Element password = x.addChild("password");
1078				password.setContent(conversation.getMucOptions().getPassword());
1079			}
1080			String sig = account.getPgpSignature();
1081			if (sig != null) {
1082				packet.addChild("status").setContent("online");
1083				packet.addChild("x", "jabber:x:signed").setContent(sig);
1084			}
1085			if (conversation.getMessages().size() != 0) {
1086				final SimpleDateFormat mDateFormat = new SimpleDateFormat(
1087						"yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", Locale.US);
1088				mDateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
1089				Date date = new Date(conversation.getLatestMessage()
1090						.getTimeSent() + 1000);
1091				x.addChild("history").setAttribute("since",
1092						mDateFormat.format(date));
1093			}
1094			packet.addChild(x);
1095			sendPresencePacket(account, packet);
1096			if (!joinJid.equals(conversation.getContactJid())) {
1097				conversation.setContactJid(joinJid);
1098				databaseBackend.updateConversation(conversation);
1099			}
1100		} else {
1101			account.pendingConferenceJoins.add(conversation);
1102		}
1103	}
1104
1105	private OnRenameListener renameListener = null;
1106	private IqGenerator mIqGenerator = new IqGenerator(this);
1107
1108	public void setOnRenameListener(OnRenameListener listener) {
1109		this.renameListener = listener;
1110	}
1111
1112	public void providePasswordForMuc(Conversation conversation, String password) {
1113		if (conversation.getMode() == Conversation.MODE_MULTI) {
1114			conversation.getMucOptions().setPassword(password);
1115			if (conversation.getBookmark() != null
1116					&& conversation.getMucOptions().isPasswordChanged()) {
1117				if (!conversation.getBookmark().autojoin()) {
1118					conversation.getBookmark().setAutojoin(true);
1119				}
1120				pushBookmarks(conversation.getAccount());
1121			}
1122			joinMuc(conversation);
1123		}
1124	}
1125
1126	public void renameInMuc(final Conversation conversation, final String nick) {
1127		final MucOptions options = conversation.getMucOptions();
1128		options.setJoinNick(nick);
1129		if (options.online()) {
1130			Account account = conversation.getAccount();
1131			options.setOnRenameListener(new OnRenameListener() {
1132
1133				@Override
1134				public void onRename(boolean success) {
1135					if (renameListener != null) {
1136						renameListener.onRename(success);
1137					}
1138					if (success) {
1139						conversation.setContactJid(conversation.getMucOptions()
1140								.getJoinJid());
1141						databaseBackend.updateConversation(conversation);
1142						Bookmark bookmark = conversation.getBookmark();
1143						if (bookmark != null) {
1144							bookmark.setNick(nick);
1145							pushBookmarks(bookmark.getAccount());
1146						}
1147					}
1148				}
1149			});
1150			options.flagAboutToRename();
1151			PresencePacket packet = new PresencePacket();
1152			packet.setAttribute("to", options.getJoinJid());
1153			packet.setAttribute("from", conversation.getAccount().getFullJid());
1154
1155			String sig = account.getPgpSignature();
1156			if (sig != null) {
1157				packet.addChild("status").setContent("online");
1158				packet.addChild("x", "jabber:x:signed").setContent(sig);
1159			}
1160			sendPresencePacket(account, packet);
1161		} else {
1162			conversation.setContactJid(options.getJoinJid());
1163			databaseBackend.updateConversation(conversation);
1164			if (conversation.getAccount().getStatus() == Account.STATUS_ONLINE) {
1165				Bookmark bookmark = conversation.getBookmark();
1166				if (bookmark != null) {
1167					bookmark.setNick(nick);
1168					pushBookmarks(bookmark.getAccount());
1169				}
1170				joinMuc(conversation);
1171			}
1172		}
1173	}
1174
1175	public void leaveMuc(Conversation conversation) {
1176		Account account = conversation.getAccount();
1177		account.pendingConferenceJoins.remove(conversation);
1178		account.pendingConferenceLeaves.remove(conversation);
1179		if (account.getStatus() == Account.STATUS_ONLINE) {
1180			PresencePacket packet = new PresencePacket();
1181			packet.setAttribute("to", conversation.getMucOptions().getJoinJid());
1182			packet.setAttribute("from", conversation.getAccount().getFullJid());
1183			packet.setAttribute("type", "unavailable");
1184			sendPresencePacket(conversation.getAccount(), packet);
1185			conversation.getMucOptions().setOffline();
1186			conversation.deregisterWithBookmark();
1187			Log.d(Config.LOGTAG, conversation.getAccount().getJid()
1188					+ " leaving muc " + conversation.getContactJid());
1189		} else {
1190			account.pendingConferenceLeaves.add(conversation);
1191		}
1192	}
1193
1194	public void disconnect(Account account, boolean force) {
1195		if ((account.getStatus() == Account.STATUS_ONLINE)
1196				|| (account.getStatus() == Account.STATUS_DISABLED)) {
1197			if (!force) {
1198				List<Conversation> conversations = getConversations();
1199				for (int i = 0; i < conversations.size(); i++) {
1200					Conversation conversation = conversations.get(i);
1201					if (conversation.getAccount() == account) {
1202						if (conversation.getMode() == Conversation.MODE_MULTI) {
1203							leaveMuc(conversation);
1204						} else {
1205							conversation.endOtrIfNeeded();
1206						}
1207					}
1208				}
1209			}
1210			account.getXmppConnection().disconnect(force);
1211		}
1212	}
1213
1214	@Override
1215	public IBinder onBind(Intent intent) {
1216		return mBinder;
1217	}
1218
1219	public void updateMessage(Message message) {
1220		databaseBackend.updateMessage(message);
1221	}
1222
1223	protected void syncDirtyContacts(Account account) {
1224		for (Contact contact : account.getRoster().getContacts()) {
1225			if (contact.getOption(Contact.Options.DIRTY_PUSH)) {
1226				pushContactToServer(contact);
1227			}
1228			if (contact.getOption(Contact.Options.DIRTY_DELETE)) {
1229				deleteContactOnServer(contact);
1230			}
1231		}
1232	}
1233
1234	public void createContact(Contact contact) {
1235		SharedPreferences sharedPref = getPreferences();
1236		boolean autoGrant = sharedPref.getBoolean("grant_new_contacts", true);
1237		if (autoGrant) {
1238			contact.setOption(Contact.Options.PREEMPTIVE_GRANT);
1239			contact.setOption(Contact.Options.ASKING);
1240		}
1241		pushContactToServer(contact);
1242	}
1243
1244	public void onOtrSessionEstablished(Conversation conversation) {
1245		Account account = conversation.getAccount();
1246		List<Message> messages = conversation.getMessages();
1247		Session otrSession = conversation.getOtrSession();
1248		Log.d(Config.LOGTAG,
1249				account.getJid() + " otr session established with "
1250						+ conversation.getContactJid() + "/"
1251						+ otrSession.getSessionID().getUserID());
1252		for (int i = 0; i < messages.size(); ++i) {
1253			Message msg = messages.get(i);
1254			if ((msg.getStatus() == Message.STATUS_UNSEND || msg.getStatus() == Message.STATUS_WAITING)
1255					&& (msg.getEncryption() == Message.ENCRYPTION_OTR)) {
1256				msg.setPresence(otrSession.getSessionID().getUserID());
1257				if (msg.getType() == Message.TYPE_TEXT) {
1258					MessagePacket outPacket = mMessageGenerator
1259							.generateOtrChat(msg, true);
1260					if (outPacket != null) {
1261						msg.setStatus(Message.STATUS_SEND);
1262						databaseBackend.updateMessage(msg);
1263						sendMessagePacket(account, outPacket);
1264					}
1265				} else if (msg.getType() == Message.TYPE_IMAGE) {
1266					mJingleConnectionManager.createNewConnection(msg);
1267				}
1268			}
1269		}
1270		notifyUi(conversation, false);
1271	}
1272
1273	public boolean renewSymmetricKey(Conversation conversation) {
1274		Account account = conversation.getAccount();
1275		byte[] symmetricKey = new byte[32];
1276		this.mRandom.nextBytes(symmetricKey);
1277		Session otrSession = conversation.getOtrSession();
1278		if (otrSession != null) {
1279			MessagePacket packet = new MessagePacket();
1280			packet.setType(MessagePacket.TYPE_CHAT);
1281			packet.setFrom(account.getFullJid());
1282			packet.addChild("private", "urn:xmpp:carbons:2");
1283			packet.addChild("no-copy", "urn:xmpp:hints");
1284			packet.setTo(otrSession.getSessionID().getAccountID() + "/"
1285					+ otrSession.getSessionID().getUserID());
1286			try {
1287				packet.setBody(otrSession
1288						.transformSending(CryptoHelper.FILETRANSFER
1289								+ CryptoHelper.bytesToHex(symmetricKey)));
1290				sendMessagePacket(account, packet);
1291				conversation.setSymmetricKey(symmetricKey);
1292				return true;
1293			} catch (OtrException e) {
1294				return false;
1295			}
1296		}
1297		return false;
1298	}
1299
1300	public void pushContactToServer(Contact contact) {
1301		contact.resetOption(Contact.Options.DIRTY_DELETE);
1302		contact.setOption(Contact.Options.DIRTY_PUSH);
1303		Account account = contact.getAccount();
1304		if (account.getStatus() == Account.STATUS_ONLINE) {
1305			boolean ask = contact.getOption(Contact.Options.ASKING);
1306			boolean sendUpdates = contact
1307					.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)
1308					&& contact.getOption(Contact.Options.PREEMPTIVE_GRANT);
1309			IqPacket iq = new IqPacket(IqPacket.TYPE_SET);
1310			iq.query("jabber:iq:roster").addChild(contact.asElement());
1311			account.getXmppConnection().sendIqPacket(iq, null);
1312			if (sendUpdates) {
1313				sendPresencePacket(account,
1314						mPresenceGenerator.sendPresenceUpdatesTo(contact));
1315			}
1316			if (ask) {
1317				sendPresencePacket(account,
1318						mPresenceGenerator.requestPresenceUpdatesFrom(contact));
1319			}
1320		}
1321	}
1322
1323	public void publishAvatar(Account account, Uri image,
1324			final UiCallback<Avatar> callback) {
1325		final Bitmap.CompressFormat format = Config.AVATAR_FORMAT;
1326		final int size = Config.AVATAR_SIZE;
1327		final Avatar avatar = getFileBackend()
1328				.getPepAvatar(image, size, format);
1329		if (avatar != null) {
1330			avatar.height = size;
1331			avatar.width = size;
1332			if (format.equals(Bitmap.CompressFormat.WEBP)) {
1333				avatar.type = "image/webp";
1334			} else if (format.equals(Bitmap.CompressFormat.JPEG)) {
1335				avatar.type = "image/jpeg";
1336			} else if (format.equals(Bitmap.CompressFormat.PNG)) {
1337				avatar.type = "image/png";
1338			}
1339			if (!getFileBackend().save(avatar)) {
1340				callback.error(R.string.error_saving_avatar, avatar);
1341				return;
1342			}
1343			IqPacket packet = this.mIqGenerator.publishAvatar(avatar);
1344			this.sendIqPacket(account, packet, new OnIqPacketReceived() {
1345
1346				@Override
1347				public void onIqPacketReceived(Account account, IqPacket result) {
1348					if (result.getType() == IqPacket.TYPE_RESULT) {
1349						IqPacket packet = XmppConnectionService.this.mIqGenerator
1350								.publishAvatarMetadata(avatar);
1351						sendIqPacket(account, packet, new OnIqPacketReceived() {
1352
1353							@Override
1354							public void onIqPacketReceived(Account account,
1355									IqPacket result) {
1356								if (result.getType() == IqPacket.TYPE_RESULT) {
1357									if (account.setAvatar(avatar.getFilename())) {
1358										databaseBackend.updateAccount(account);
1359									}
1360									callback.success(avatar);
1361								} else {
1362									callback.error(
1363											R.string.error_publish_avatar_server_reject,
1364											avatar);
1365								}
1366							}
1367						});
1368					} else {
1369						callback.error(
1370								R.string.error_publish_avatar_server_reject,
1371								avatar);
1372					}
1373				}
1374			});
1375		} else {
1376			callback.error(R.string.error_publish_avatar_converting, null);
1377		}
1378	}
1379
1380	public void fetchAvatar(Account account, Avatar avatar) {
1381		fetchAvatar(account, avatar, null);
1382	}
1383
1384	public void fetchAvatar(Account account, final Avatar avatar,
1385			final UiCallback<Avatar> callback) {
1386		IqPacket packet = this.mIqGenerator.retrieveAvatar(avatar);
1387		sendIqPacket(account, packet, new OnIqPacketReceived() {
1388
1389			@Override
1390			public void onIqPacketReceived(Account account, IqPacket result) {
1391				final String ERROR = account.getJid()
1392						+ ": fetching avatar for " + avatar.owner + " failed ";
1393				if (result.getType() == IqPacket.TYPE_RESULT) {
1394					avatar.image = mIqParser.avatarData(result);
1395					if (avatar.image != null) {
1396						if (getFileBackend().save(avatar)) {
1397							if (account.getJid().equals(avatar.owner)) {
1398								if (account.setAvatar(avatar.getFilename())) {
1399									databaseBackend.updateAccount(account);
1400								}
1401							} else {
1402								Contact contact = account.getRoster()
1403										.getContact(avatar.owner);
1404								contact.setAvatar(avatar.getFilename());
1405							}
1406							if (callback != null) {
1407								callback.success(avatar);
1408							}
1409							Log.d(Config.LOGTAG, account.getJid()
1410									+ ": succesfully fetched avatar for "
1411									+ avatar.owner);
1412							return;
1413						}
1414					} else {
1415
1416						Log.d(Config.LOGTAG, ERROR + "(parsing error)");
1417					}
1418				} else {
1419					Element error = result.findChild("error");
1420					if (error == null) {
1421						Log.d(Config.LOGTAG, ERROR + "(server error)");
1422					} else {
1423						Log.d(Config.LOGTAG, ERROR + error.toString());
1424					}
1425				}
1426				if (callback != null) {
1427					callback.error(0, null);
1428				}
1429
1430			}
1431		});
1432	}
1433
1434	public void checkForAvatar(Account account,
1435			final UiCallback<Avatar> callback) {
1436		IqPacket packet = this.mIqGenerator.retrieveAvatarMetaData(null);
1437		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
1438
1439			@Override
1440			public void onIqPacketReceived(Account account, IqPacket packet) {
1441				if (packet.getType() == IqPacket.TYPE_RESULT) {
1442					Element pubsub = packet.findChild("pubsub",
1443							"http://jabber.org/protocol/pubsub");
1444					if (pubsub != null) {
1445						Element items = pubsub.findChild("items");
1446						if (items != null) {
1447							Avatar avatar = Avatar.parseMetadata(items);
1448							if (avatar != null) {
1449								avatar.owner = account.getJid();
1450								if (fileBackend.isAvatarCached(avatar)) {
1451									if (account.setAvatar(avatar.getFilename())) {
1452										databaseBackend.updateAccount(account);
1453									}
1454									callback.success(avatar);
1455								} else {
1456									fetchAvatar(account, avatar, callback);
1457								}
1458								return;
1459							}
1460						}
1461					}
1462				}
1463				callback.error(0, null);
1464			}
1465		});
1466	}
1467
1468	public void deleteContactOnServer(Contact contact) {
1469		contact.resetOption(Contact.Options.PREEMPTIVE_GRANT);
1470		contact.resetOption(Contact.Options.DIRTY_PUSH);
1471		contact.setOption(Contact.Options.DIRTY_DELETE);
1472		Account account = contact.getAccount();
1473		if (account.getStatus() == Account.STATUS_ONLINE) {
1474			IqPacket iq = new IqPacket(IqPacket.TYPE_SET);
1475			Element item = iq.query("jabber:iq:roster").addChild("item");
1476			item.setAttribute("jid", contact.getJid());
1477			item.setAttribute("subscription", "remove");
1478			account.getXmppConnection().sendIqPacket(iq, null);
1479		}
1480	}
1481
1482	public void updateConversation(Conversation conversation) {
1483		this.databaseBackend.updateConversation(conversation);
1484	}
1485
1486	public void reconnectAccount(final Account account, final boolean force) {
1487		new Thread(new Runnable() {
1488
1489			@Override
1490			public void run() {
1491				if (account.getXmppConnection() != null) {
1492					disconnect(account, force);
1493				}
1494				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
1495					if (account.getXmppConnection() == null) {
1496						account.setXmppConnection(createConnection(account));
1497					}
1498					Thread thread = new Thread(account.getXmppConnection());
1499					thread.start();
1500					scheduleWakeupCall((int) (Config.CONNECT_TIMEOUT * 1.2),
1501							false);
1502				}
1503			}
1504		}).start();
1505	}
1506
1507	public void invite(Conversation conversation, String contact) {
1508		MessagePacket packet = mMessageGenerator.invite(conversation, contact);
1509		sendMessagePacket(conversation.getAccount(), packet);
1510	}
1511
1512	public void resetSendingToWaiting(Account account) {
1513		for (Conversation conversation : getConversations()) {
1514			if (conversation.getAccount() == account) {
1515				for (Message message : conversation.getMessages()) {
1516					if (message.getType() != Message.TYPE_IMAGE
1517							&& message.getStatus() == Message.STATUS_UNSEND) {
1518						markMessage(message, Message.STATUS_WAITING);
1519					}
1520				}
1521			}
1522		}
1523	}
1524
1525	public boolean markMessage(Account account, String recipient, String uuid,
1526			int status) {
1527		for (Conversation conversation : getConversations()) {
1528			if (conversation.getContactJid().equals(recipient)
1529					&& conversation.getAccount().equals(account)) {
1530				return markMessage(conversation, uuid, status);
1531			}
1532		}
1533		return false;
1534	}
1535
1536	public boolean markMessage(Conversation conversation, String uuid,
1537			int status) {
1538		for (Message message : conversation.getMessages()) {
1539			if (message.getUuid().equals(uuid)) {
1540				markMessage(message, status);
1541				return true;
1542			}
1543		}
1544		return false;
1545	}
1546
1547	public void markMessage(Message message, int status) {
1548		if (status == Message.STATUS_SEND_FAILED
1549				&& (message.getStatus() == Message.STATUS_SEND_RECEIVED || message
1550						.getStatus() == Message.STATUS_SEND_DISPLAYED)) {
1551			return;
1552		}
1553		message.setStatus(status);
1554		databaseBackend.updateMessage(message);
1555		updateConversationUi();
1556	}
1557
1558	public SharedPreferences getPreferences() {
1559		return PreferenceManager
1560				.getDefaultSharedPreferences(getApplicationContext());
1561	}
1562
1563	public boolean forceEncryption() {
1564		return getPreferences().getBoolean("force_encryption", false);
1565	}
1566
1567	public boolean confirmMessages() {
1568		return getPreferences().getBoolean("confirm_messages", true);
1569	}
1570
1571	public boolean saveEncryptedMessages() {
1572		return !getPreferences().getBoolean("dont_save_encrypted", false);
1573	}
1574
1575	public boolean indicateReceived() {
1576		return getPreferences().getBoolean("indicate_received", false);
1577	}
1578
1579	public void notifyUi(Conversation conversation, boolean notify) {
1580		if (mOnConversationUpdate != null) {
1581			mOnConversationUpdate.onConversationUpdate();
1582		} else {
1583			UIHelper.updateNotification(getApplicationContext(),
1584					getConversations(), conversation, notify);
1585		}
1586	}
1587
1588	public void updateConversationUi() {
1589		if (mOnConversationUpdate != null) {
1590			mOnConversationUpdate.onConversationUpdate();
1591		}
1592	}
1593
1594	public void updateAccountUi() {
1595		if (mOnAccountUpdate != null) {
1596			mOnAccountUpdate.onAccountUpdate();
1597		}
1598	}
1599
1600	public void updateRosterUi() {
1601		if (mOnRosterUpdate != null) {
1602			mOnRosterUpdate.onRosterUpdate();
1603		}
1604	}
1605
1606	public Account findAccountByJid(String accountJid) {
1607		for (Account account : this.accounts) {
1608			if (account.getJid().equals(accountJid)) {
1609				return account;
1610			}
1611		}
1612		return null;
1613	}
1614
1615	public Conversation findConversationByUuid(String uuid) {
1616		for (Conversation conversation : getConversations()) {
1617			if (conversation.getUuid().equals(uuid)) {
1618				return conversation;
1619			}
1620		}
1621		return null;
1622	}
1623
1624	public void markRead(Conversation conversation) {
1625		conversation.markRead();
1626		String id = conversation.popLatestMarkableMessageId();
1627		if (confirmMessages() && id != null) {
1628			Account account = conversation.getAccount();
1629			String to = conversation.getContactJid();
1630			this.sendMessagePacket(conversation.getAccount(),
1631					mMessageGenerator.confirm(account, to, id));
1632		}
1633	}
1634
1635	public void failWaitingOtrMessages(Conversation conversation) {
1636		for (Message message : conversation.getMessages()) {
1637			if (message.getEncryption() == Message.ENCRYPTION_OTR
1638					&& message.getStatus() == Message.STATUS_WAITING) {
1639				markMessage(message, Message.STATUS_SEND_FAILED);
1640			}
1641		}
1642	}
1643
1644	public SecureRandom getRNG() {
1645		return this.mRandom;
1646	}
1647
1648	public MemorizingTrustManager getMemorizingTrustManager() {
1649		return this.mMemorizingTrustManager;
1650	}
1651
1652	public PowerManager getPowerManager() {
1653		return this.pm;
1654	}
1655
1656	public void replyWithNotAcceptable(Account account, MessagePacket packet) {
1657		if (account.getStatus() == Account.STATUS_ONLINE) {
1658			MessagePacket error = this.mMessageGenerator
1659					.generateNotAcceptable(packet);
1660			sendMessagePacket(account, error);
1661		}
1662	}
1663
1664	public void syncRosterToDisk(final Account account) {
1665		new Thread(new Runnable() {
1666
1667			@Override
1668			public void run() {
1669				databaseBackend.writeRoster(account.getRoster());
1670			}
1671		}).start();
1672
1673	}
1674
1675	public List<String> getKnownHosts() {
1676		List<String> hosts = new ArrayList<String>();
1677		for (Account account : getAccounts()) {
1678			if (!hosts.contains(account.getServer())) {
1679				hosts.add(account.getServer());
1680			}
1681			for (Contact contact : account.getRoster().getContacts()) {
1682				if (contact.showInRoster()) {
1683					String server = contact.getServer();
1684					if (server != null && !hosts.contains(server)) {
1685						hosts.add(server);
1686					}
1687				}
1688			}
1689		}
1690		return hosts;
1691	}
1692
1693	public List<String> getKnownConferenceHosts() {
1694		ArrayList<String> mucServers = new ArrayList<String>();
1695		for (Account account : accounts) {
1696			if (account.getXmppConnection() != null) {
1697				String server = account.getXmppConnection().getMucServer();
1698				if (server != null && !mucServers.contains(server)) {
1699					mucServers.add(server);
1700				}
1701			}
1702		}
1703		return mucServers;
1704	}
1705
1706	public void sendMessagePacket(Account account, MessagePacket packet) {
1707		account.getXmppConnection().sendMessagePacket(packet);
1708	}
1709
1710	public void sendPresencePacket(Account account, PresencePacket packet) {
1711		account.getXmppConnection().sendPresencePacket(packet);
1712	}
1713
1714	public void sendIqPacket(Account account, IqPacket packet,
1715			OnIqPacketReceived callback) {
1716		account.getXmppConnection().sendIqPacket(packet, callback);
1717	}
1718
1719	public MessageGenerator getMessageGenerator() {
1720		return this.mMessageGenerator;
1721	}
1722
1723	public PresenceGenerator getPresenceGenerator() {
1724		return this.mPresenceGenerator;
1725	}
1726
1727	public IqGenerator getIqGenerator() {
1728		return this.mIqGenerator;
1729	}
1730
1731	public JingleConnectionManager getJingleConnectionManager() {
1732		return this.mJingleConnectionManager;
1733	}
1734
1735	public interface OnConversationUpdate {
1736		public void onConversationUpdate();
1737	}
1738
1739	public interface OnAccountUpdate {
1740		public void onAccountUpdate();
1741	}
1742
1743	public interface OnRosterUpdate {
1744		public void onRosterUpdate();
1745	}
1746
1747	public List<Contact> findContacts(String jid) {
1748		ArrayList<Contact> contacts = new ArrayList<Contact>();
1749		for (Account account : getAccounts()) {
1750			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
1751				Contact contact = account.getRoster()
1752						.getContactAsShownInRoster(jid);
1753				if (contact != null) {
1754					contacts.add(contact);
1755				}
1756			}
1757		}
1758		return contacts;
1759	}
1760}