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.Downloadable;
  31import eu.siacs.conversations.entities.Message;
  32import eu.siacs.conversations.entities.MucOptions;
  33import eu.siacs.conversations.entities.MucOptions.OnRenameListener;
  34import eu.siacs.conversations.entities.Presences;
  35import eu.siacs.conversations.generator.IqGenerator;
  36import eu.siacs.conversations.generator.MessageGenerator;
  37import eu.siacs.conversations.generator.PresenceGenerator;
  38import eu.siacs.conversations.http.HttpConnectionManager;
  39import eu.siacs.conversations.parser.IqParser;
  40import eu.siacs.conversations.parser.MessageParser;
  41import eu.siacs.conversations.parser.PresenceParser;
  42import eu.siacs.conversations.persistance.DatabaseBackend;
  43import eu.siacs.conversations.persistance.FileBackend;
  44import eu.siacs.conversations.ui.UiCallback;
  45import eu.siacs.conversations.utils.CryptoHelper;
  46import eu.siacs.conversations.utils.ExceptionHelper;
  47import eu.siacs.conversations.utils.OnPhoneContactsLoadedListener;
  48import eu.siacs.conversations.utils.PRNGFixes;
  49import eu.siacs.conversations.utils.PhoneHelper;
  50import eu.siacs.conversations.utils.UIHelper;
  51import eu.siacs.conversations.xml.Element;
  52import eu.siacs.conversations.xmpp.OnBindListener;
  53import eu.siacs.conversations.xmpp.OnContactStatusChanged;
  54import eu.siacs.conversations.xmpp.OnIqPacketReceived;
  55import eu.siacs.conversations.xmpp.OnMessageAcknowledged;
  56import eu.siacs.conversations.xmpp.OnStatusChanged;
  57import eu.siacs.conversations.xmpp.XmppConnection;
  58import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
  59import eu.siacs.conversations.xmpp.jingle.OnJinglePacketReceived;
  60import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
  61import eu.siacs.conversations.xmpp.pep.Avatar;
  62import eu.siacs.conversations.xmpp.stanzas.IqPacket;
  63import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
  64import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
  65import android.annotation.SuppressLint;
  66import android.app.AlarmManager;
  67import android.app.PendingIntent;
  68import android.app.Service;
  69import android.content.Context;
  70import android.content.Intent;
  71import android.content.SharedPreferences;
  72import android.database.ContentObserver;
  73import android.graphics.Bitmap;
  74import android.net.ConnectivityManager;
  75import android.net.NetworkInfo;
  76import android.net.Uri;
  77import android.os.Binder;
  78import android.os.Bundle;
  79import android.os.FileObserver;
  80import android.os.IBinder;
  81import android.os.PowerManager;
  82import android.os.PowerManager.WakeLock;
  83import android.os.SystemClock;
  84import android.preference.PreferenceManager;
  85import android.provider.ContactsContract;
  86import android.util.Log;
  87
  88public class XmppConnectionService extends Service {
  89
  90	public DatabaseBackend databaseBackend;
  91	private FileBackend fileBackend;
  92
  93	public long startDate;
  94
  95	private static String ACTION_MERGE_PHONE_CONTACTS = "merge_phone_contacts";
  96	public static String ACTION_CLEAR_NOTIFICATION = "clear_notification";
  97
  98	private MemorizingTrustManager mMemorizingTrustManager;
  99
 100	private NotificationService mNotificationService;
 101
 102	private MessageParser mMessageParser = new MessageParser(this);
 103	private PresenceParser mPresenceParser = new PresenceParser(this);
 104	private IqParser mIqParser = new IqParser(this);
 105	private MessageGenerator mMessageGenerator = new MessageGenerator(this);
 106	private PresenceGenerator mPresenceGenerator = new PresenceGenerator(this);
 107
 108	private List<Account> accounts;
 109	private CopyOnWriteArrayList<Conversation> conversations = null;
 110	private JingleConnectionManager mJingleConnectionManager = new JingleConnectionManager(
 111			this);
 112	private HttpConnectionManager mHttpConnectionManager = new HttpConnectionManager(
 113			this);
 114
 115	private OnConversationUpdate mOnConversationUpdate = null;
 116	private Integer convChangedListenerCount = 0;
 117	private OnAccountUpdate mOnAccountUpdate = null;
 118	private Integer accountChangedListenerCount = 0;
 119	private OnRosterUpdate mOnRosterUpdate = null;
 120	private Integer rosterChangedListenerCount = 0;
 121	public OnContactStatusChanged onContactStatusChanged = new OnContactStatusChanged() {
 122
 123		@Override
 124		public void onContactStatusChanged(Contact contact, boolean online) {
 125			Conversation conversation = find(getConversations(), contact);
 126			if (conversation != null) {
 127				conversation.endOtrIfNeeded();
 128				if (online && (contact.getPresences().size() == 1)) {
 129					sendUnsendMessages(conversation);
 130				}
 131			}
 132		}
 133	};
 134
 135	private SecureRandom mRandom;
 136
 137	private ContentObserver contactObserver = new ContentObserver(null) {
 138		@Override
 139		public void onChange(boolean selfChange) {
 140			super.onChange(selfChange);
 141			Intent intent = new Intent(getApplicationContext(),
 142					XmppConnectionService.class);
 143			intent.setAction(ACTION_MERGE_PHONE_CONTACTS);
 144			startService(intent);
 145		}
 146	};
 147	
 148	private FileObserver fileObserver = new FileObserver(FileBackend.getConversationsDirectory()) {
 149		
 150		@Override
 151		public void onEvent(int event, String path) {
 152			if (event == FileObserver.DELETE) {
 153				markFileDeleted(path.split("\\.")[0]);
 154			}
 155		}
 156	};
 157
 158	private final IBinder mBinder = new XmppConnectionBinder();
 159	private OnStatusChanged statusListener = new OnStatusChanged() {
 160
 161		@Override
 162		public void onStatusChanged(Account account) {
 163			XmppConnection connection = account.getXmppConnection();
 164			if (mOnAccountUpdate != null) {
 165				mOnAccountUpdate.onAccountUpdate();
 166				;
 167			}
 168			if (account.getStatus() == Account.STATUS_ONLINE) {
 169				for (Conversation conversation : account.pendingConferenceLeaves) {
 170					leaveMuc(conversation);
 171				}
 172				for (Conversation conversation : account.pendingConferenceJoins) {
 173					joinMuc(conversation);
 174				}
 175				mJingleConnectionManager.cancelInTransmission();
 176				List<Conversation> conversations = getConversations();
 177				for (int i = 0; i < conversations.size(); ++i) {
 178					if (conversations.get(i).getAccount() == account) {
 179						conversations.get(i).startOtrIfNeeded();
 180						sendUnsendMessages(conversations.get(i));
 181					}
 182				}
 183				if (connection != null && connection.getFeatures().csi()) {
 184					if (checkListeners()) {
 185						Log.d(Config.LOGTAG, account.getJid()
 186								+ " sending csi//inactive");
 187						connection.sendInactive();
 188					} else {
 189						Log.d(Config.LOGTAG, account.getJid()
 190								+ " sending csi//active");
 191						connection.sendActive();
 192					}
 193				}
 194				syncDirtyContacts(account);
 195				scheduleWakeupCall(Config.PING_MAX_INTERVAL, true);
 196			} else if (account.getStatus() == Account.STATUS_OFFLINE) {
 197				resetSendingToWaiting(account);
 198				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 199					int timeToReconnect = mRandom.nextInt(50) + 10;
 200					scheduleWakeupCall(timeToReconnect, false);
 201				}
 202			} else if (account.getStatus() == Account.STATUS_REGISTRATION_SUCCESSFULL) {
 203				databaseBackend.updateAccount(account);
 204				reconnectAccount(account, true);
 205			} else if ((account.getStatus() != Account.STATUS_CONNECTING)
 206					&& (account.getStatus() != Account.STATUS_NO_INTERNET)) {
 207				if (connection != null) {
 208					int next = connection.getTimeToNextAttempt();
 209					Log.d(Config.LOGTAG, account.getJid()
 210							+ ": error connecting account. try again in "
 211							+ next + "s for the "
 212							+ (connection.getAttempt() + 1) + " time");
 213					scheduleWakeupCall((int) (next * 1.2), false);
 214				}
 215			}
 216			UIHelper.showErrorNotification(getApplicationContext(),
 217					getAccounts());
 218		}
 219	};
 220
 221	private OnJinglePacketReceived jingleListener = new OnJinglePacketReceived() {
 222
 223		@Override
 224		public void onJinglePacketReceived(Account account, JinglePacket packet) {
 225			mJingleConnectionManager.deliverPacket(account, packet);
 226		}
 227	};
 228
 229	private OpenPgpServiceConnection pgpServiceConnection;
 230	private PgpEngine mPgpEngine = null;
 231	private Intent pingIntent;
 232	private PendingIntent pendingPingIntent = null;
 233	private WakeLock wakeLock;
 234	private PowerManager pm;
 235	private OnBindListener mOnBindListener = new OnBindListener() {
 236
 237		@Override
 238		public void onBind(final Account account) {
 239			account.getRoster().clearPresences();
 240			account.clearPresences(); // self presences
 241			account.pendingConferenceJoins.clear();
 242			account.pendingConferenceLeaves.clear();
 243			fetchRosterFromServer(account);
 244			fetchBookmarks(account);
 245			sendPresencePacket(account,
 246					mPresenceGenerator.sendPresence(account));
 247			connectMultiModeConversations(account);
 248			updateConversationUi();
 249		}
 250	};
 251
 252	private OnMessageAcknowledged mOnMessageAcknowledgedListener = new OnMessageAcknowledged() {
 253
 254		@Override
 255		public void onMessageAcknowledged(Account account, String uuid) {
 256			for (Conversation conversation : getConversations()) {
 257				if (conversation.getAccount() == account) {
 258					for (Message message : conversation.getMessages()) {
 259						if ((message.getStatus() == Message.STATUS_UNSEND || message
 260								.getStatus() == Message.STATUS_WAITING)
 261								&& message.getUuid().equals(uuid)) {
 262							markMessage(message, Message.STATUS_SEND);
 263							return;
 264						}
 265					}
 266				}
 267			}
 268		}
 269	};
 270
 271	public PgpEngine getPgpEngine() {
 272		if (pgpServiceConnection.isBound()) {
 273			if (this.mPgpEngine == null) {
 274				this.mPgpEngine = new PgpEngine(new OpenPgpApi(
 275						getApplicationContext(),
 276						pgpServiceConnection.getService()), this);
 277			}
 278			return mPgpEngine;
 279		} else {
 280			return null;
 281		}
 282
 283	}
 284
 285	public FileBackend getFileBackend() {
 286		return this.fileBackend;
 287	}
 288
 289	public Message attachImageToConversation(final Conversation conversation,
 290			final Uri uri, final UiCallback<Message> callback) {
 291		final Message message;
 292		if (conversation.getNextEncryption(forceEncryption()) == Message.ENCRYPTION_PGP) {
 293			message = new Message(conversation, "",
 294					Message.ENCRYPTION_DECRYPTED);
 295		} else {
 296			message = new Message(conversation, "",
 297					conversation.getNextEncryption(forceEncryption()));
 298		}
 299		message.setPresence(conversation.getNextPresence());
 300		message.setType(Message.TYPE_IMAGE);
 301		message.setStatus(Message.STATUS_OFFERED);
 302		new Thread(new Runnable() {
 303
 304			@Override
 305			public void run() {
 306				try {
 307					getFileBackend().copyImageToPrivateStorage(message, uri);
 308					if (conversation.getNextEncryption(forceEncryption()) == Message.ENCRYPTION_PGP) {
 309						getPgpEngine().encrypt(message, callback);
 310					} else {
 311						callback.success(message);
 312					}
 313				} catch (FileBackend.ImageCopyException e) {
 314					callback.error(e.getResId(), message);
 315				}
 316			}
 317		}).start();
 318		return message;
 319	}
 320
 321	public Conversation find(Bookmark bookmark) {
 322		return find(bookmark.getAccount(), bookmark.getJid());
 323	}
 324
 325	public Conversation find(Account account, String jid) {
 326		return find(getConversations(), account, jid);
 327	}
 328
 329	public class XmppConnectionBinder extends Binder {
 330		public XmppConnectionService getService() {
 331			return XmppConnectionService.this;
 332		}
 333	}
 334
 335	@Override
 336	public int onStartCommand(Intent intent, int flags, int startId) {
 337		if (intent != null && intent.getAction() != null) {
 338			if (intent.getAction().equals(ACTION_MERGE_PHONE_CONTACTS)) {
 339				mergePhoneContactsWithRoster();
 340				return START_STICKY;
 341			} else if (intent.getAction().equals(Intent.ACTION_SHUTDOWN)) {
 342				logoutAndSave();
 343				return START_NOT_STICKY;
 344			} else if (intent.getAction().equals(ACTION_CLEAR_NOTIFICATION)) {
 345				mNotificationService.clear();
 346			}
 347		}
 348		this.wakeLock.acquire();
 349		ConnectivityManager cm = (ConnectivityManager) getApplicationContext()
 350				.getSystemService(Context.CONNECTIVITY_SERVICE);
 351		NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
 352		boolean isConnected = activeNetwork != null
 353				&& activeNetwork.isConnected();
 354
 355		for (Account account : accounts) {
 356			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 357				if (!isConnected) {
 358					account.setStatus(Account.STATUS_NO_INTERNET);
 359					if (statusListener != null) {
 360						statusListener.onStatusChanged(account);
 361					}
 362				} else {
 363					if (account.getStatus() == Account.STATUS_NO_INTERNET) {
 364						account.setStatus(Account.STATUS_OFFLINE);
 365						if (statusListener != null) {
 366							statusListener.onStatusChanged(account);
 367						}
 368					}
 369					if (account.getStatus() == Account.STATUS_ONLINE) {
 370						long lastReceived = account.getXmppConnection()
 371								.getLastPacketReceived();
 372						long lastSent = account.getXmppConnection()
 373								.getLastPingSent();
 374						if (lastSent - lastReceived >= Config.PING_TIMEOUT * 1000) {
 375							Log.d(Config.LOGTAG, account.getJid()
 376									+ ": ping timeout");
 377							this.reconnectAccount(account, true);
 378						} else if (SystemClock.elapsedRealtime() - lastReceived >= Config.PING_MIN_INTERVAL * 1000) {
 379							account.getXmppConnection().sendPing();
 380							this.scheduleWakeupCall(2, false);
 381						}
 382					} else if (account.getStatus() == Account.STATUS_OFFLINE) {
 383						if (account.getXmppConnection() == null) {
 384							account.setXmppConnection(this
 385									.createConnection(account));
 386						}
 387						new Thread(account.getXmppConnection()).start();
 388					} else if ((account.getStatus() == Account.STATUS_CONNECTING)
 389							&& ((SystemClock.elapsedRealtime() - account
 390									.getXmppConnection().getLastConnect()) / 1000 >= Config.CONNECT_TIMEOUT)) {
 391						Log.d(Config.LOGTAG, account.getJid()
 392								+ ": time out during connect reconnecting");
 393						reconnectAccount(account, true);
 394					} else {
 395						if (account.getXmppConnection().getTimeToNextAttempt() <= 0) {
 396							reconnectAccount(account, true);
 397						}
 398					}
 399					// in any case. reschedule wakup call
 400					this.scheduleWakeupCall(Config.PING_MAX_INTERVAL, true);
 401				}
 402				if (mOnAccountUpdate != null) {
 403					mOnAccountUpdate.onAccountUpdate();
 404				}
 405			}
 406		}
 407		if (wakeLock.isHeld()) {
 408			try {
 409				wakeLock.release();
 410			} catch (RuntimeException re) {
 411			}
 412		}
 413		return START_STICKY;
 414	}
 415
 416	@SuppressLint("TrulyRandom")
 417	@Override
 418	public void onCreate() {
 419		ExceptionHelper.init(getApplicationContext());
 420		PRNGFixes.apply();
 421		this.mRandom = new SecureRandom();
 422		this.mMemorizingTrustManager = new MemorizingTrustManager(
 423				getApplicationContext());
 424		this.mNotificationService = new NotificationService(this);
 425		this.databaseBackend = DatabaseBackend
 426				.getInstance(getApplicationContext());
 427		this.fileBackend = new FileBackend(getApplicationContext());
 428		this.accounts = databaseBackend.getAccounts();
 429
 430		for (Account account : this.accounts) {
 431			this.databaseBackend.readRoster(account.getRoster());
 432		}
 433		this.mergePhoneContactsWithRoster();
 434		this.getConversations();
 435
 436		getContentResolver().registerContentObserver(
 437				ContactsContract.Contacts.CONTENT_URI, true, contactObserver);
 438		this.fileObserver.startWatching();
 439		this.pgpServiceConnection = new OpenPgpServiceConnection(
 440				getApplicationContext(), "org.sufficientlysecure.keychain");
 441		this.pgpServiceConnection.bindToService();
 442
 443		this.pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 444		this.wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
 445				"XmppConnectionService");
 446	}
 447
 448	@Override
 449	public void onDestroy() {
 450		super.onDestroy();
 451		this.logoutAndSave();
 452	}
 453
 454	@Override
 455	public void onTaskRemoved(Intent rootIntent) {
 456		super.onTaskRemoved(rootIntent);
 457		this.logoutAndSave();
 458	}
 459
 460	private void logoutAndSave() {
 461		for (Account account : accounts) {
 462			databaseBackend.writeRoster(account.getRoster());
 463			if (account.getXmppConnection() != null) {
 464				disconnect(account, false);
 465			}
 466		}
 467		Context context = getApplicationContext();
 468		AlarmManager alarmManager = (AlarmManager) context
 469				.getSystemService(Context.ALARM_SERVICE);
 470		Intent intent = new Intent(context, EventReceiver.class);
 471		alarmManager.cancel(PendingIntent.getBroadcast(context, 0, intent, 0));
 472		Log.d(Config.LOGTAG, "good bye");
 473		stopSelf();
 474	}
 475
 476	protected void scheduleWakeupCall(int seconds, boolean ping) {
 477		long timeToWake = SystemClock.elapsedRealtime() + seconds * 1000;
 478		Context context = getApplicationContext();
 479		AlarmManager alarmManager = (AlarmManager) context
 480				.getSystemService(Context.ALARM_SERVICE);
 481
 482		if (ping) {
 483			if (this.pingIntent == null) {
 484				this.pingIntent = new Intent(context, EventReceiver.class);
 485				this.pingIntent.setAction("ping");
 486				this.pingIntent.putExtra("time", timeToWake);
 487				this.pendingPingIntent = PendingIntent.getBroadcast(context, 0,
 488						this.pingIntent, 0);
 489				alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
 490						timeToWake, pendingPingIntent);
 491			} else {
 492				long scheduledTime = this.pingIntent.getLongExtra("time", 0);
 493				if (scheduledTime < SystemClock.elapsedRealtime()
 494						|| (scheduledTime > timeToWake)) {
 495					this.pingIntent.putExtra("time", timeToWake);
 496					alarmManager.cancel(this.pendingPingIntent);
 497					this.pendingPingIntent = PendingIntent.getBroadcast(
 498							context, 0, this.pingIntent, 0);
 499					alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
 500							timeToWake, pendingPingIntent);
 501				}
 502			}
 503		} else {
 504			Intent intent = new Intent(context, EventReceiver.class);
 505			intent.setAction("ping_check");
 506			PendingIntent alarmIntent = PendingIntent.getBroadcast(context, 0,
 507					intent, 0);
 508			alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake,
 509					alarmIntent);
 510		}
 511
 512	}
 513
 514	public XmppConnection createConnection(Account account) {
 515		SharedPreferences sharedPref = getPreferences();
 516		account.setResource(sharedPref.getString("resource", "mobile")
 517				.toLowerCase(Locale.getDefault()));
 518		XmppConnection connection = new XmppConnection(account, this);
 519		connection.setOnMessagePacketReceivedListener(this.mMessageParser);
 520		connection.setOnStatusChangedListener(this.statusListener);
 521		connection.setOnPresencePacketReceivedListener(this.mPresenceParser);
 522		connection.setOnUnregisteredIqPacketReceivedListener(this.mIqParser);
 523		connection.setOnJinglePacketReceivedListener(this.jingleListener);
 524		connection.setOnBindListener(this.mOnBindListener);
 525		connection
 526				.setOnMessageAcknowledgeListener(this.mOnMessageAcknowledgedListener);
 527		return connection;
 528	}
 529
 530	synchronized public void sendMessage(Message message) {
 531		Account account = message.getConversation().getAccount();
 532		Conversation conv = message.getConversation();
 533		MessagePacket packet = null;
 534		boolean saveInDb = true;
 535		boolean send = false;
 536		if (account.getStatus() == Account.STATUS_ONLINE
 537				&& account.getXmppConnection() != null) {
 538			if (message.getType() == Message.TYPE_IMAGE) {
 539				if (message.getPresence() != null) {
 540					if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 541						if (!conv.hasValidOtrSession()
 542								&& (message.getPresence() != null)) {
 543							conv.startOtrSession(this, message.getPresence(),
 544									true);
 545							message.setStatus(Message.STATUS_WAITING);
 546						} else if (conv.hasValidOtrSession()
 547								&& conv.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) {
 548							mJingleConnectionManager
 549									.createNewConnection(message);
 550						} else if (message.getPresence() == null) {
 551							message.setStatus(Message.STATUS_WAITING);
 552						}
 553					} else {
 554						mJingleConnectionManager.createNewConnection(message);
 555					}
 556				} else {
 557					message.setStatus(Message.STATUS_WAITING);
 558				}
 559			} else {
 560				if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 561					if (!conv.hasValidOtrSession()
 562							&& (message.getPresence() != null)) {
 563						conv.startOtrSession(this, message.getPresence(), true);
 564						message.setStatus(Message.STATUS_WAITING);
 565					} else if (conv.hasValidOtrSession()
 566							&& conv.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) {
 567						message.setPresence(conv.getOtrSession().getSessionID()
 568								.getUserID());
 569						packet = mMessageGenerator.generateOtrChat(message);
 570						send = true;
 571
 572					} else if (message.getPresence() == null) {
 573						message.setStatus(Message.STATUS_WAITING);
 574					}
 575				} else if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 576					message.getConversation().endOtrIfNeeded();
 577					failWaitingOtrMessages(message.getConversation());
 578					packet = mMessageGenerator.generatePgpChat(message);
 579					send = true;
 580				} else {
 581					message.getConversation().endOtrIfNeeded();
 582					failWaitingOtrMessages(message.getConversation());
 583					packet = mMessageGenerator.generateChat(message);
 584					send = true;
 585				}
 586			}
 587			if (!account.getXmppConnection().getFeatures().sm()
 588					&& conv.getMode() != Conversation.MODE_MULTI) {
 589				message.setStatus(Message.STATUS_SEND);
 590			}
 591		} else {
 592			message.setStatus(Message.STATUS_WAITING);
 593			if (message.getType() == Message.TYPE_TEXT) {
 594				if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 595					String pgpBody = message.getEncryptedBody();
 596					String decryptedBody = message.getBody();
 597					message.setBody(pgpBody);
 598					message.setEncryption(Message.ENCRYPTION_PGP);
 599					databaseBackend.createMessage(message);
 600					saveInDb = false;
 601					message.setBody(decryptedBody);
 602					message.setEncryption(Message.ENCRYPTION_DECRYPTED);
 603				} else if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 604					if (conv.hasValidOtrSession()) {
 605						message.setPresence(conv.getOtrSession().getSessionID()
 606								.getUserID());
 607					} else if (!conv.hasValidOtrSession()
 608							&& message.getPresence() != null) {
 609						conv.startOtrSession(this, message.getPresence(), false);
 610					}
 611				}
 612			}
 613
 614		}
 615		conv.getMessages().add(message);
 616		if (saveInDb) {
 617			if (message.getEncryption() == Message.ENCRYPTION_NONE
 618					|| saveEncryptedMessages()) {
 619				databaseBackend.createMessage(message);
 620			}
 621		}
 622		if ((send) && (packet != null)) {
 623			sendMessagePacket(account, packet);
 624		}
 625		updateConversationUi();
 626	}
 627
 628	private void sendUnsendMessages(Conversation conversation) {
 629		for (int i = 0; i < conversation.getMessages().size(); ++i) {
 630			int status = conversation.getMessages().get(i).getStatus();
 631			if (status == Message.STATUS_WAITING) {
 632				resendMessage(conversation.getMessages().get(i));
 633			}
 634		}
 635	}
 636
 637	private void resendMessage(Message message) {
 638		Account account = message.getConversation().getAccount();
 639		MessagePacket packet = null;
 640		if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 641			Presences presences = message.getConversation().getContact()
 642					.getPresences();
 643			if (!message.getConversation().hasValidOtrSession()) {
 644				if ((message.getPresence() != null)
 645						&& (presences.has(message.getPresence()))) {
 646					message.getConversation().startOtrSession(this,
 647							message.getPresence(), true);
 648				} else {
 649					if (presences.size() == 1) {
 650						String presence = presences.asStringArray()[0];
 651						message.getConversation().startOtrSession(this,
 652								presence, true);
 653					}
 654				}
 655			} else {
 656				if (message.getConversation().getOtrSession()
 657						.getSessionStatus() == SessionStatus.ENCRYPTED) {
 658					if (message.getType() == Message.TYPE_TEXT) {
 659						packet = mMessageGenerator.generateOtrChat(message,
 660								true);
 661					} else if (message.getType() == Message.TYPE_IMAGE) {
 662						mJingleConnectionManager.createNewConnection(message);
 663					}
 664				}
 665			}
 666		} else if (message.getType() == Message.TYPE_TEXT) {
 667			if (message.getEncryption() == Message.ENCRYPTION_NONE) {
 668				packet = mMessageGenerator.generateChat(message, true);
 669			} else if ((message.getEncryption() == Message.ENCRYPTION_DECRYPTED)
 670					|| (message.getEncryption() == Message.ENCRYPTION_PGP)) {
 671				packet = mMessageGenerator.generatePgpChat(message, true);
 672			}
 673		} else if (message.getType() == Message.TYPE_IMAGE) {
 674			Presences presences = message.getConversation().getContact()
 675					.getPresences();
 676			if ((message.getPresence() != null)
 677					&& (presences.has(message.getPresence()))) {
 678				markMessage(message, Message.STATUS_OFFERED);
 679				mJingleConnectionManager.createNewConnection(message);
 680			} else {
 681				if (presences.size() == 1) {
 682					String presence = presences.asStringArray()[0];
 683					message.setPresence(presence);
 684					markMessage(message, Message.STATUS_OFFERED);
 685					mJingleConnectionManager.createNewConnection(message);
 686				}
 687			}
 688		}
 689		if (packet != null) {
 690			if (!account.getXmppConnection().getFeatures().sm()
 691					&& message.getConversation().getMode() != Conversation.MODE_MULTI) {
 692				markMessage(message, Message.STATUS_SEND);
 693			} else {
 694				markMessage(message, Message.STATUS_UNSEND);
 695			}
 696			sendMessagePacket(account, packet);
 697		}
 698	}
 699
 700	public void fetchRosterFromServer(Account account) {
 701		IqPacket iqPacket = new IqPacket(IqPacket.TYPE_GET);
 702		if (!"".equals(account.getRosterVersion())) {
 703			Log.d(Config.LOGTAG, account.getJid()
 704					+ ": fetching roster version " + account.getRosterVersion());
 705		} else {
 706			Log.d(Config.LOGTAG, account.getJid() + ": fetching roster");
 707		}
 708		iqPacket.query("jabber:iq:roster").setAttribute("ver",
 709				account.getRosterVersion());
 710		account.getXmppConnection().sendIqPacket(iqPacket,
 711				new OnIqPacketReceived() {
 712
 713					@Override
 714					public void onIqPacketReceived(final Account account,
 715							IqPacket packet) {
 716						Element query = packet.findChild("query");
 717						if (query != null) {
 718							account.getRoster().markAllAsNotInRoster();
 719							mIqParser.rosterItems(account, query);
 720						}
 721					}
 722				});
 723	}
 724
 725	public void fetchBookmarks(Account account) {
 726		IqPacket iqPacket = new IqPacket(IqPacket.TYPE_GET);
 727		Element query = iqPacket.query("jabber:iq:private");
 728		query.addChild("storage", "storage:bookmarks");
 729		OnIqPacketReceived callback = new OnIqPacketReceived() {
 730
 731			@Override
 732			public void onIqPacketReceived(Account account, IqPacket packet) {
 733				Element query = packet.query();
 734				List<Bookmark> bookmarks = new CopyOnWriteArrayList<Bookmark>();
 735				Element storage = query.findChild("storage",
 736						"storage:bookmarks");
 737				if (storage != null) {
 738					for (Element item : storage.getChildren()) {
 739						if (item.getName().equals("conference")) {
 740							Bookmark bookmark = Bookmark.parse(item, account);
 741							bookmarks.add(bookmark);
 742							Conversation conversation = find(bookmark);
 743							if (conversation != null) {
 744								conversation.setBookmark(bookmark);
 745							} else {
 746								if (bookmark.autojoin()) {
 747									conversation = findOrCreateConversation(
 748											account, bookmark.getJid(), true);
 749									conversation.setBookmark(bookmark);
 750									joinMuc(conversation);
 751								}
 752							}
 753						}
 754					}
 755				}
 756				account.setBookmarks(bookmarks);
 757			}
 758		};
 759		sendIqPacket(account, iqPacket, callback);
 760
 761	}
 762
 763	public void pushBookmarks(Account account) {
 764		IqPacket iqPacket = new IqPacket(IqPacket.TYPE_SET);
 765		Element query = iqPacket.query("jabber:iq:private");
 766		Element storage = query.addChild("storage", "storage:bookmarks");
 767		for (Bookmark bookmark : account.getBookmarks()) {
 768			storage.addChild(bookmark);
 769		}
 770		sendIqPacket(account, iqPacket, null);
 771	}
 772
 773	private void mergePhoneContactsWithRoster() {
 774		PhoneHelper.loadPhoneContacts(getApplicationContext(),
 775				new OnPhoneContactsLoadedListener() {
 776					@Override
 777					public void onPhoneContactsLoaded(List<Bundle> phoneContacts) {
 778						for (Account account : accounts) {
 779							account.getRoster().clearSystemAccounts();
 780						}
 781						for (Bundle phoneContact : phoneContacts) {
 782							for (Account account : accounts) {
 783								String jid = phoneContact.getString("jid");
 784								Contact contact = account.getRoster()
 785										.getContact(jid);
 786								String systemAccount = phoneContact
 787										.getInt("phoneid")
 788										+ "#"
 789										+ phoneContact.getString("lookup");
 790								contact.setSystemAccount(systemAccount);
 791								contact.setPhotoUri(phoneContact
 792										.getString("photouri"));
 793								contact.setSystemName(phoneContact
 794										.getString("displayname"));
 795							}
 796						}
 797					}
 798				});
 799	}
 800
 801	public List<Conversation> getConversations() {
 802		if (this.conversations == null) {
 803			Hashtable<String, Account> accountLookupTable = new Hashtable<String, Account>();
 804			for (Account account : this.accounts) {
 805				accountLookupTable.put(account.getUuid(), account);
 806			}
 807			this.conversations = databaseBackend
 808					.getConversations(Conversation.STATUS_AVAILABLE);
 809			for (Conversation conv : this.conversations) {
 810				Account account = accountLookupTable.get(conv.getAccountUuid());
 811				conv.setAccount(account);
 812				conv.setMessages(databaseBackend.getMessages(conv, 50));
 813				checkDeletedFiles(conv);
 814			}
 815		}
 816		return this.conversations;
 817	}
 818	
 819	private void checkDeletedFiles(Conversation conversation) {
 820		for(Message message : conversation.getMessages()) {
 821			if (message.getType() == Message.TYPE_IMAGE && message.getEncryption() != Message.ENCRYPTION_PGP) {
 822				if (!getFileBackend().isFileAvailable(message)) {
 823					message.setDownloadable(new DeletedDownloadable());
 824				}
 825			}
 826		}
 827	}
 828	
 829	private void markFileDeleted(String uuid) {
 830		for(Conversation conversation : getConversations()) {
 831			for(Message message : conversation.getMessages()) {
 832				if (message.getType() == Message.TYPE_IMAGE && message.getEncryption() != Message.ENCRYPTION_PGP && message.getUuid().equals(uuid)) {
 833					if (!getFileBackend().isFileAvailable(message)) {
 834						message.setDownloadable(new DeletedDownloadable());
 835						updateConversationUi();
 836					}
 837					return;
 838				}
 839			}
 840		}
 841	}
 842
 843	public void populateWithOrderedConversations(List<Conversation> list) {
 844		populateWithOrderedConversations(list, true);
 845	}
 846
 847	public void populateWithOrderedConversations(List<Conversation> list,
 848			boolean includeConferences) {
 849		list.clear();
 850		if (includeConferences) {
 851			list.addAll(getConversations());
 852		} else {
 853			for (Conversation conversation : getConversations()) {
 854				if (conversation.getMode() == Conversation.MODE_SINGLE) {
 855					list.add(conversation);
 856				}
 857			}
 858		}
 859		Collections.sort(list, new Comparator<Conversation>() {
 860			@Override
 861			public int compare(Conversation lhs, Conversation rhs) {
 862				Message left = lhs.getLatestMessage();
 863				Message right = rhs.getLatestMessage();
 864				if (left.getTimeSent() > right.getTimeSent()) {
 865					return -1;
 866				} else if (left.getTimeSent() < right.getTimeSent()) {
 867					return 1;
 868				} else {
 869					return 0;
 870				}
 871			}
 872		});
 873	}
 874
 875	public int loadMoreMessages(Conversation conversation, long timestamp) {
 876		List<Message> messages = databaseBackend.getMessages(conversation, 50,
 877				timestamp);
 878		for (Message message : messages) {
 879			message.setConversation(conversation);
 880		}
 881		conversation.getMessages().addAll(0, messages);
 882		return messages.size();
 883	}
 884
 885	public List<Account> getAccounts() {
 886		return this.accounts;
 887	}
 888
 889	public Conversation find(List<Conversation> haystack, Contact contact) {
 890		for (Conversation conversation : haystack) {
 891			if (conversation.getContact() == contact) {
 892				return conversation;
 893			}
 894		}
 895		return null;
 896	}
 897
 898	public Conversation find(List<Conversation> haystack, Account account,
 899			String jid) {
 900		for (Conversation conversation : haystack) {
 901			if ((account == null || conversation.getAccount().equals(account))
 902					&& (conversation.getContactJid().split("/", 2)[0]
 903							.equals(jid))) {
 904				return conversation;
 905			}
 906		}
 907		return null;
 908	}
 909
 910	public Conversation findOrCreateConversation(Account account, String jid,
 911			boolean muc) {
 912		Conversation conversation = find(account, jid);
 913		if (conversation != null) {
 914			return conversation;
 915		}
 916		conversation = databaseBackend.findConversation(account, jid);
 917		if (conversation != null) {
 918			conversation.setStatus(Conversation.STATUS_AVAILABLE);
 919			conversation.setAccount(account);
 920			if (muc) {
 921				conversation.setMode(Conversation.MODE_MULTI);
 922			} else {
 923				conversation.setMode(Conversation.MODE_SINGLE);
 924			}
 925			conversation.setMessages(databaseBackend.getMessages(conversation,
 926					50));
 927			this.databaseBackend.updateConversation(conversation);
 928		} else {
 929			String conversationName;
 930			Contact contact = account.getRoster().getContact(jid);
 931			if (contact != null) {
 932				conversationName = contact.getDisplayName();
 933			} else {
 934				conversationName = jid.split("@")[0];
 935			}
 936			if (muc) {
 937				conversation = new Conversation(conversationName, account, jid,
 938						Conversation.MODE_MULTI);
 939			} else {
 940				conversation = new Conversation(conversationName, account, jid,
 941						Conversation.MODE_SINGLE);
 942			}
 943			this.databaseBackend.createConversation(conversation);
 944		}
 945		this.conversations.add(conversation);
 946		updateConversationUi();
 947		return conversation;
 948	}
 949
 950	public void archiveConversation(Conversation conversation) {
 951		if (conversation.getMode() == Conversation.MODE_MULTI) {
 952			if (conversation.getAccount().getStatus() == Account.STATUS_ONLINE) {
 953				Bookmark bookmark = conversation.getBookmark();
 954				if (bookmark != null && bookmark.autojoin()) {
 955					bookmark.setAutojoin(false);
 956					pushBookmarks(bookmark.getAccount());
 957				}
 958			}
 959			leaveMuc(conversation);
 960		} else {
 961			conversation.endOtrIfNeeded();
 962		}
 963		this.databaseBackend.updateConversation(conversation);
 964		this.conversations.remove(conversation);
 965		updateConversationUi();
 966	}
 967
 968	public void clearConversationHistory(Conversation conversation) {
 969		this.databaseBackend.deleteMessagesInConversation(conversation);
 970		this.fileBackend.removeFiles(conversation);
 971		conversation.getMessages().clear();
 972		updateConversationUi();
 973	}
 974
 975	public int getConversationCount() {
 976		return this.databaseBackend.getConversationCount();
 977	}
 978
 979	public void createAccount(Account account) {
 980		databaseBackend.createAccount(account);
 981		this.accounts.add(account);
 982		this.reconnectAccount(account, false);
 983		updateAccountUi();
 984	}
 985
 986	public void updateAccount(Account account) {
 987		this.statusListener.onStatusChanged(account);
 988		databaseBackend.updateAccount(account);
 989		reconnectAccount(account, false);
 990		updateAccountUi();
 991		UIHelper.showErrorNotification(getApplicationContext(), getAccounts());
 992	}
 993
 994	public void deleteAccount(Account account) {
 995		for (Conversation conversation : conversations) {
 996			if (conversation.getAccount() == account) {
 997				if (conversation.getMode() == Conversation.MODE_MULTI) {
 998					leaveMuc(conversation);
 999				} else if (conversation.getMode() == Conversation.MODE_SINGLE) {
1000					conversation.endOtrIfNeeded();
1001				}
1002				conversations.remove(conversation);
1003			}
1004		}
1005		if (account.getXmppConnection() != null) {
1006			this.disconnect(account, true);
1007		}
1008		databaseBackend.deleteAccount(account);
1009		this.accounts.remove(account);
1010		updateAccountUi();
1011		UIHelper.showErrorNotification(getApplicationContext(), getAccounts());
1012	}
1013
1014	public void setOnConversationListChangedListener(
1015			OnConversationUpdate listener) {
1016		if (!isScreenOn()) {
1017			Log.d(Config.LOGTAG,
1018					"ignoring setOnConversationListChangedListener");
1019			return;
1020		}
1021		synchronized (this.convChangedListenerCount) {
1022			this.mNotificationService.deactivateGracePeriod();
1023			if (checkListeners()) {
1024				switchToForeground();
1025			}
1026			this.mOnConversationUpdate = listener;
1027			this.mNotificationService.setIsInForeground(true);
1028			this.convChangedListenerCount++;
1029		}
1030	}
1031
1032	public void removeOnConversationListChangedListener() {
1033		synchronized (this.convChangedListenerCount) {
1034			this.convChangedListenerCount--;
1035			if (this.convChangedListenerCount <= 0) {
1036				this.convChangedListenerCount = 0;
1037				this.mOnConversationUpdate = null;
1038				this.mNotificationService.setIsInForeground(false);
1039				if (checkListeners()) {
1040					switchToBackground();
1041				}
1042			}
1043		}
1044	}
1045
1046	public void setOnAccountListChangedListener(OnAccountUpdate listener) {
1047		if (!isScreenOn()) {
1048			Log.d(Config.LOGTAG, "ignoring setOnAccountListChangedListener");
1049			return;
1050		}
1051		synchronized (this.accountChangedListenerCount) {
1052			this.mNotificationService.deactivateGracePeriod();
1053			if (checkListeners()) {
1054				switchToForeground();
1055			}
1056			this.mOnAccountUpdate = listener;
1057			this.accountChangedListenerCount++;
1058		}
1059	}
1060
1061	public void removeOnAccountListChangedListener() {
1062		synchronized (this.accountChangedListenerCount) {
1063			this.accountChangedListenerCount--;
1064			if (this.accountChangedListenerCount <= 0) {
1065				this.mOnAccountUpdate = null;
1066				this.accountChangedListenerCount = 0;
1067				if (checkListeners()) {
1068					switchToBackground();
1069				}
1070			}
1071		}
1072	}
1073
1074	public void setOnRosterUpdateListener(OnRosterUpdate listener) {
1075		if (!isScreenOn()) {
1076			Log.d(Config.LOGTAG, "ignoring setOnRosterUpdateListener");
1077			return;
1078		}
1079		synchronized (this.rosterChangedListenerCount) {
1080			this.mNotificationService.deactivateGracePeriod();
1081			if (checkListeners()) {
1082				switchToForeground();
1083			}
1084			this.mOnRosterUpdate = listener;
1085			this.rosterChangedListenerCount++;
1086		}
1087	}
1088
1089	public void removeOnRosterUpdateListener() {
1090		synchronized (this.rosterChangedListenerCount) {
1091			this.rosterChangedListenerCount--;
1092			if (this.rosterChangedListenerCount <= 0) {
1093				this.rosterChangedListenerCount = 0;
1094				this.mOnRosterUpdate = null;
1095				if (checkListeners()) {
1096					switchToBackground();
1097				}
1098			}
1099		}
1100	}
1101
1102	private boolean checkListeners() {
1103		return (this.mOnAccountUpdate == null
1104				&& this.mOnConversationUpdate == null && this.mOnRosterUpdate == null);
1105	}
1106
1107	private void switchToForeground() {
1108		for (Account account : getAccounts()) {
1109			if (account.getStatus() == Account.STATUS_ONLINE) {
1110				XmppConnection connection = account.getXmppConnection();
1111				if (connection != null && connection.getFeatures().csi()) {
1112					connection.sendActive();
1113					Log.d(Config.LOGTAG, account.getJid()
1114							+ " sending csi//active");
1115				}
1116			}
1117		}
1118	}
1119
1120	private void switchToBackground() {
1121		for (Account account : getAccounts()) {
1122			if (account.getStatus() == Account.STATUS_ONLINE) {
1123				XmppConnection connection = account.getXmppConnection();
1124				if (connection != null && connection.getFeatures().csi()) {
1125					connection.sendInactive();
1126					Log.d(Config.LOGTAG, account.getJid()
1127							+ " sending csi//inactive");
1128				}
1129			}
1130		}
1131	}
1132
1133	private boolean isScreenOn() {
1134		PowerManager pm = (PowerManager) this
1135				.getSystemService(Context.POWER_SERVICE);
1136		return pm.isScreenOn();
1137	}
1138
1139	public void connectMultiModeConversations(Account account) {
1140		List<Conversation> conversations = getConversations();
1141		for (int i = 0; i < conversations.size(); i++) {
1142			Conversation conversation = conversations.get(i);
1143			if ((conversation.getMode() == Conversation.MODE_MULTI)
1144					&& (conversation.getAccount() == account)) {
1145				joinMuc(conversation);
1146			}
1147		}
1148	}
1149
1150	public void joinMuc(Conversation conversation) {
1151		Account account = conversation.getAccount();
1152		account.pendingConferenceJoins.remove(conversation);
1153		account.pendingConferenceLeaves.remove(conversation);
1154		if (account.getStatus() == Account.STATUS_ONLINE) {
1155			Log.d(Config.LOGTAG,
1156					"joining conversation " + conversation.getContactJid());
1157			String nick = conversation.getMucOptions().getProposedNick();
1158			conversation.getMucOptions().setJoinNick(nick);
1159			PresencePacket packet = new PresencePacket();
1160			String joinJid = conversation.getMucOptions().getJoinJid();
1161			packet.setAttribute("to", conversation.getMucOptions().getJoinJid());
1162			Element x = new Element("x");
1163			x.setAttribute("xmlns", "http://jabber.org/protocol/muc");
1164			if (conversation.getMucOptions().getPassword() != null) {
1165				Element password = x.addChild("password");
1166				password.setContent(conversation.getMucOptions().getPassword());
1167			}
1168			String sig = account.getPgpSignature();
1169			if (sig != null) {
1170				packet.addChild("status").setContent("online");
1171				packet.addChild("x", "jabber:x:signed").setContent(sig);
1172			}
1173			if (conversation.getMessages().size() != 0) {
1174				final SimpleDateFormat mDateFormat = new SimpleDateFormat(
1175						"yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", Locale.US);
1176				mDateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
1177				Date date = new Date(conversation.getLatestMessage()
1178						.getTimeSent() + 1000);
1179				x.addChild("history").setAttribute("since",
1180						mDateFormat.format(date));
1181			}
1182			packet.addChild(x);
1183			sendPresencePacket(account, packet);
1184			if (!joinJid.equals(conversation.getContactJid())) {
1185				conversation.setContactJid(joinJid);
1186				databaseBackend.updateConversation(conversation);
1187			}
1188		} else {
1189			account.pendingConferenceJoins.add(conversation);
1190		}
1191	}
1192
1193	private OnRenameListener renameListener = null;
1194	private IqGenerator mIqGenerator = new IqGenerator(this);
1195
1196	public void setOnRenameListener(OnRenameListener listener) {
1197		this.renameListener = listener;
1198	}
1199
1200	public void providePasswordForMuc(Conversation conversation, String password) {
1201		if (conversation.getMode() == Conversation.MODE_MULTI) {
1202			conversation.getMucOptions().setPassword(password);
1203			if (conversation.getBookmark() != null) {
1204				conversation.getBookmark().setAutojoin(true);
1205				pushBookmarks(conversation.getAccount());
1206			}
1207			databaseBackend.updateConversation(conversation);
1208			joinMuc(conversation);
1209		}
1210	}
1211
1212	public void renameInMuc(final Conversation conversation, final String nick) {
1213		final MucOptions options = conversation.getMucOptions();
1214		options.setJoinNick(nick);
1215		if (options.online()) {
1216			Account account = conversation.getAccount();
1217			options.setOnRenameListener(new OnRenameListener() {
1218
1219				@Override
1220				public void onRename(boolean success) {
1221					if (renameListener != null) {
1222						renameListener.onRename(success);
1223					}
1224					if (success) {
1225						conversation.setContactJid(conversation.getMucOptions()
1226								.getJoinJid());
1227						databaseBackend.updateConversation(conversation);
1228						Bookmark bookmark = conversation.getBookmark();
1229						if (bookmark != null) {
1230							bookmark.setNick(nick);
1231							pushBookmarks(bookmark.getAccount());
1232						}
1233					}
1234				}
1235			});
1236			options.flagAboutToRename();
1237			PresencePacket packet = new PresencePacket();
1238			packet.setAttribute("to", options.getJoinJid());
1239			packet.setAttribute("from", conversation.getAccount().getFullJid());
1240
1241			String sig = account.getPgpSignature();
1242			if (sig != null) {
1243				packet.addChild("status").setContent("online");
1244				packet.addChild("x", "jabber:x:signed").setContent(sig);
1245			}
1246			sendPresencePacket(account, packet);
1247		} else {
1248			conversation.setContactJid(options.getJoinJid());
1249			databaseBackend.updateConversation(conversation);
1250			if (conversation.getAccount().getStatus() == Account.STATUS_ONLINE) {
1251				Bookmark bookmark = conversation.getBookmark();
1252				if (bookmark != null) {
1253					bookmark.setNick(nick);
1254					pushBookmarks(bookmark.getAccount());
1255				}
1256				joinMuc(conversation);
1257			}
1258		}
1259	}
1260
1261	public void leaveMuc(Conversation conversation) {
1262		Account account = conversation.getAccount();
1263		account.pendingConferenceJoins.remove(conversation);
1264		account.pendingConferenceLeaves.remove(conversation);
1265		if (account.getStatus() == Account.STATUS_ONLINE) {
1266			PresencePacket packet = new PresencePacket();
1267			packet.setAttribute("to", conversation.getMucOptions().getJoinJid());
1268			packet.setAttribute("from", conversation.getAccount().getFullJid());
1269			packet.setAttribute("type", "unavailable");
1270			sendPresencePacket(conversation.getAccount(), packet);
1271			conversation.getMucOptions().setOffline();
1272			conversation.deregisterWithBookmark();
1273			Log.d(Config.LOGTAG, conversation.getAccount().getJid()
1274					+ " leaving muc " + conversation.getContactJid());
1275		} else {
1276			account.pendingConferenceLeaves.add(conversation);
1277		}
1278	}
1279
1280	public void disconnect(Account account, boolean force) {
1281		if ((account.getStatus() == Account.STATUS_ONLINE)
1282				|| (account.getStatus() == Account.STATUS_DISABLED)) {
1283			if (!force) {
1284				List<Conversation> conversations = getConversations();
1285				for (int i = 0; i < conversations.size(); i++) {
1286					Conversation conversation = conversations.get(i);
1287					if (conversation.getAccount() == account) {
1288						if (conversation.getMode() == Conversation.MODE_MULTI) {
1289							leaveMuc(conversation);
1290						} else {
1291							conversation.endOtrIfNeeded();
1292						}
1293					}
1294				}
1295			}
1296			account.getXmppConnection().disconnect(force);
1297		}
1298	}
1299
1300	@Override
1301	public IBinder onBind(Intent intent) {
1302		return mBinder;
1303	}
1304
1305	public void updateMessage(Message message) {
1306		databaseBackend.updateMessage(message);
1307		updateConversationUi();
1308	}
1309
1310	protected void syncDirtyContacts(Account account) {
1311		for (Contact contact : account.getRoster().getContacts()) {
1312			if (contact.getOption(Contact.Options.DIRTY_PUSH)) {
1313				pushContactToServer(contact);
1314			}
1315			if (contact.getOption(Contact.Options.DIRTY_DELETE)) {
1316				deleteContactOnServer(contact);
1317			}
1318		}
1319	}
1320
1321	public void createContact(Contact contact) {
1322		SharedPreferences sharedPref = getPreferences();
1323		boolean autoGrant = sharedPref.getBoolean("grant_new_contacts", true);
1324		if (autoGrant) {
1325			contact.setOption(Contact.Options.PREEMPTIVE_GRANT);
1326			contact.setOption(Contact.Options.ASKING);
1327		}
1328		pushContactToServer(contact);
1329	}
1330
1331	public void onOtrSessionEstablished(Conversation conversation) {
1332		Account account = conversation.getAccount();
1333		List<Message> messages = conversation.getMessages();
1334		Session otrSession = conversation.getOtrSession();
1335		Log.d(Config.LOGTAG,
1336				account.getJid() + " otr session established with "
1337						+ conversation.getContactJid() + "/"
1338						+ otrSession.getSessionID().getUserID());
1339		for (int i = 0; i < messages.size(); ++i) {
1340			Message msg = messages.get(i);
1341			if ((msg.getStatus() == Message.STATUS_UNSEND || msg.getStatus() == Message.STATUS_WAITING)
1342					&& (msg.getEncryption() == Message.ENCRYPTION_OTR)) {
1343				msg.setPresence(otrSession.getSessionID().getUserID());
1344				if (msg.getType() == Message.TYPE_TEXT) {
1345					MessagePacket outPacket = mMessageGenerator
1346							.generateOtrChat(msg, true);
1347					if (outPacket != null) {
1348						msg.setStatus(Message.STATUS_SEND);
1349						databaseBackend.updateMessage(msg);
1350						sendMessagePacket(account, outPacket);
1351					}
1352				} else if (msg.getType() == Message.TYPE_IMAGE) {
1353					mJingleConnectionManager.createNewConnection(msg);
1354				}
1355			}
1356		}
1357		updateConversationUi();
1358	}
1359
1360	public boolean renewSymmetricKey(Conversation conversation) {
1361		Account account = conversation.getAccount();
1362		byte[] symmetricKey = new byte[32];
1363		this.mRandom.nextBytes(symmetricKey);
1364		Session otrSession = conversation.getOtrSession();
1365		if (otrSession != null) {
1366			MessagePacket packet = new MessagePacket();
1367			packet.setType(MessagePacket.TYPE_CHAT);
1368			packet.setFrom(account.getFullJid());
1369			packet.addChild("private", "urn:xmpp:carbons:2");
1370			packet.addChild("no-copy", "urn:xmpp:hints");
1371			packet.setTo(otrSession.getSessionID().getAccountID() + "/"
1372					+ otrSession.getSessionID().getUserID());
1373			try {
1374				packet.setBody(otrSession
1375						.transformSending(CryptoHelper.FILETRANSFER
1376								+ CryptoHelper.bytesToHex(symmetricKey)));
1377				sendMessagePacket(account, packet);
1378				conversation.setSymmetricKey(symmetricKey);
1379				return true;
1380			} catch (OtrException e) {
1381				return false;
1382			}
1383		}
1384		return false;
1385	}
1386
1387	public void pushContactToServer(Contact contact) {
1388		contact.resetOption(Contact.Options.DIRTY_DELETE);
1389		contact.setOption(Contact.Options.DIRTY_PUSH);
1390		Account account = contact.getAccount();
1391		if (account.getStatus() == Account.STATUS_ONLINE) {
1392			boolean ask = contact.getOption(Contact.Options.ASKING);
1393			boolean sendUpdates = contact
1394					.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)
1395					&& contact.getOption(Contact.Options.PREEMPTIVE_GRANT);
1396			IqPacket iq = new IqPacket(IqPacket.TYPE_SET);
1397			iq.query("jabber:iq:roster").addChild(contact.asElement());
1398			account.getXmppConnection().sendIqPacket(iq, null);
1399			if (sendUpdates) {
1400				sendPresencePacket(account,
1401						mPresenceGenerator.sendPresenceUpdatesTo(contact));
1402			}
1403			if (ask) {
1404				sendPresencePacket(account,
1405						mPresenceGenerator.requestPresenceUpdatesFrom(contact));
1406			}
1407		}
1408	}
1409
1410	public void publishAvatar(Account account, Uri image,
1411			final UiCallback<Avatar> callback) {
1412		final Bitmap.CompressFormat format = Config.AVATAR_FORMAT;
1413		final int size = Config.AVATAR_SIZE;
1414		final Avatar avatar = getFileBackend()
1415				.getPepAvatar(image, size, format);
1416		if (avatar != null) {
1417			avatar.height = size;
1418			avatar.width = size;
1419			if (format.equals(Bitmap.CompressFormat.WEBP)) {
1420				avatar.type = "image/webp";
1421			} else if (format.equals(Bitmap.CompressFormat.JPEG)) {
1422				avatar.type = "image/jpeg";
1423			} else if (format.equals(Bitmap.CompressFormat.PNG)) {
1424				avatar.type = "image/png";
1425			}
1426			if (!getFileBackend().save(avatar)) {
1427				callback.error(R.string.error_saving_avatar, avatar);
1428				return;
1429			}
1430			IqPacket packet = this.mIqGenerator.publishAvatar(avatar);
1431			this.sendIqPacket(account, packet, new OnIqPacketReceived() {
1432
1433				@Override
1434				public void onIqPacketReceived(Account account, IqPacket result) {
1435					if (result.getType() == IqPacket.TYPE_RESULT) {
1436						IqPacket packet = XmppConnectionService.this.mIqGenerator
1437								.publishAvatarMetadata(avatar);
1438						sendIqPacket(account, packet, new OnIqPacketReceived() {
1439
1440							@Override
1441							public void onIqPacketReceived(Account account,
1442									IqPacket result) {
1443								if (result.getType() == IqPacket.TYPE_RESULT) {
1444									if (account.setAvatar(avatar.getFilename())) {
1445										databaseBackend.updateAccount(account);
1446									}
1447									callback.success(avatar);
1448								} else {
1449									callback.error(
1450											R.string.error_publish_avatar_server_reject,
1451											avatar);
1452								}
1453							}
1454						});
1455					} else {
1456						callback.error(
1457								R.string.error_publish_avatar_server_reject,
1458								avatar);
1459					}
1460				}
1461			});
1462		} else {
1463			callback.error(R.string.error_publish_avatar_converting, null);
1464		}
1465	}
1466
1467	public void fetchAvatar(Account account, Avatar avatar) {
1468		fetchAvatar(account, avatar, null);
1469	}
1470
1471	public void fetchAvatar(Account account, final Avatar avatar,
1472			final UiCallback<Avatar> callback) {
1473		IqPacket packet = this.mIqGenerator.retrieveAvatar(avatar);
1474		sendIqPacket(account, packet, new OnIqPacketReceived() {
1475
1476			@Override
1477			public void onIqPacketReceived(Account account, IqPacket result) {
1478				final String ERROR = account.getJid()
1479						+ ": fetching avatar for " + avatar.owner + " failed ";
1480				if (result.getType() == IqPacket.TYPE_RESULT) {
1481					avatar.image = mIqParser.avatarData(result);
1482					if (avatar.image != null) {
1483						if (getFileBackend().save(avatar)) {
1484							if (account.getJid().equals(avatar.owner)) {
1485								if (account.setAvatar(avatar.getFilename())) {
1486									databaseBackend.updateAccount(account);
1487								}
1488							} else {
1489								Contact contact = account.getRoster()
1490										.getContact(avatar.owner);
1491								contact.setAvatar(avatar.getFilename());
1492							}
1493							if (callback != null) {
1494								callback.success(avatar);
1495							}
1496							Log.d(Config.LOGTAG, account.getJid()
1497									+ ": succesfully fetched avatar for "
1498									+ avatar.owner);
1499							return;
1500						}
1501					} else {
1502
1503						Log.d(Config.LOGTAG, ERROR + "(parsing error)");
1504					}
1505				} else {
1506					Element error = result.findChild("error");
1507					if (error == null) {
1508						Log.d(Config.LOGTAG, ERROR + "(server error)");
1509					} else {
1510						Log.d(Config.LOGTAG, ERROR + error.toString());
1511					}
1512				}
1513				if (callback != null) {
1514					callback.error(0, null);
1515				}
1516
1517			}
1518		});
1519	}
1520
1521	public void checkForAvatar(Account account,
1522			final UiCallback<Avatar> callback) {
1523		IqPacket packet = this.mIqGenerator.retrieveAvatarMetaData(null);
1524		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
1525
1526			@Override
1527			public void onIqPacketReceived(Account account, IqPacket packet) {
1528				if (packet.getType() == IqPacket.TYPE_RESULT) {
1529					Element pubsub = packet.findChild("pubsub",
1530							"http://jabber.org/protocol/pubsub");
1531					if (pubsub != null) {
1532						Element items = pubsub.findChild("items");
1533						if (items != null) {
1534							Avatar avatar = Avatar.parseMetadata(items);
1535							if (avatar != null) {
1536								avatar.owner = account.getJid();
1537								if (fileBackend.isAvatarCached(avatar)) {
1538									if (account.setAvatar(avatar.getFilename())) {
1539										databaseBackend.updateAccount(account);
1540									}
1541									callback.success(avatar);
1542								} else {
1543									fetchAvatar(account, avatar, callback);
1544								}
1545								return;
1546							}
1547						}
1548					}
1549				}
1550				callback.error(0, null);
1551			}
1552		});
1553	}
1554
1555	public void deleteContactOnServer(Contact contact) {
1556		contact.resetOption(Contact.Options.PREEMPTIVE_GRANT);
1557		contact.resetOption(Contact.Options.DIRTY_PUSH);
1558		contact.setOption(Contact.Options.DIRTY_DELETE);
1559		Account account = contact.getAccount();
1560		if (account.getStatus() == Account.STATUS_ONLINE) {
1561			IqPacket iq = new IqPacket(IqPacket.TYPE_SET);
1562			Element item = iq.query("jabber:iq:roster").addChild("item");
1563			item.setAttribute("jid", contact.getJid());
1564			item.setAttribute("subscription", "remove");
1565			account.getXmppConnection().sendIqPacket(iq, null);
1566		}
1567	}
1568
1569	public void updateConversation(Conversation conversation) {
1570		this.databaseBackend.updateConversation(conversation);
1571	}
1572
1573	public void reconnectAccount(final Account account, final boolean force) {
1574		new Thread(new Runnable() {
1575
1576			@Override
1577			public void run() {
1578				if (account.getXmppConnection() != null) {
1579					disconnect(account, force);
1580				}
1581				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
1582					if (account.getXmppConnection() == null) {
1583						account.setXmppConnection(createConnection(account));
1584					}
1585					Thread thread = new Thread(account.getXmppConnection());
1586					thread.start();
1587					scheduleWakeupCall((int) (Config.CONNECT_TIMEOUT * 1.2),
1588							false);
1589				} else {
1590					account.getRoster().clearPresences();
1591					account.setXmppConnection(null);
1592				}
1593			}
1594		}).start();
1595	}
1596
1597	public void invite(Conversation conversation, String contact) {
1598		MessagePacket packet = mMessageGenerator.invite(conversation, contact);
1599		sendMessagePacket(conversation.getAccount(), packet);
1600	}
1601
1602	public void resetSendingToWaiting(Account account) {
1603		for (Conversation conversation : getConversations()) {
1604			if (conversation.getAccount() == account) {
1605				for (Message message : conversation.getMessages()) {
1606					if (message.getType() != Message.TYPE_IMAGE
1607							&& message.getStatus() == Message.STATUS_UNSEND) {
1608						markMessage(message, Message.STATUS_WAITING);
1609					}
1610				}
1611			}
1612		}
1613	}
1614
1615	public boolean markMessage(Account account, String recipient, String uuid,
1616			int status) {
1617		if (uuid == null) {
1618			return false;
1619		} else {
1620			for (Conversation conversation : getConversations()) {
1621				if (conversation.getContactJid().equals(recipient)
1622						&& conversation.getAccount().equals(account)) {
1623					return markMessage(conversation, uuid, status);
1624				}
1625			}
1626			return false;
1627		}
1628	}
1629
1630	public boolean markMessage(Conversation conversation, String uuid,
1631			int status) {
1632		if (uuid == null) {
1633			return false;
1634		} else {
1635			for (Message message : conversation.getMessages()) {
1636				if (uuid.equals(message.getUuid())
1637						|| (message.getStatus() >= Message.STATUS_SEND && uuid
1638								.equals(message.getRemoteMsgId()))) {
1639					markMessage(message, status);
1640					return true;
1641				}
1642			}
1643			return false;
1644		}
1645	}
1646
1647	public void markMessage(Message message, int status) {
1648		if (status == Message.STATUS_SEND_FAILED
1649				&& (message.getStatus() == Message.STATUS_SEND_RECEIVED || message
1650						.getStatus() == Message.STATUS_SEND_DISPLAYED)) {
1651			return;
1652		}
1653		message.setStatus(status);
1654		databaseBackend.updateMessage(message);
1655		updateConversationUi();
1656	}
1657
1658	public SharedPreferences getPreferences() {
1659		return PreferenceManager
1660				.getDefaultSharedPreferences(getApplicationContext());
1661	}
1662
1663	public boolean forceEncryption() {
1664		return getPreferences().getBoolean("force_encryption", false);
1665	}
1666
1667	public boolean confirmMessages() {
1668		return getPreferences().getBoolean("confirm_messages", true);
1669	}
1670
1671	public boolean saveEncryptedMessages() {
1672		return !getPreferences().getBoolean("dont_save_encrypted", false);
1673	}
1674
1675	public boolean indicateReceived() {
1676		return getPreferences().getBoolean("indicate_received", false);
1677	}
1678
1679	public void updateConversationUi() {
1680		if (mOnConversationUpdate != null) {
1681			mOnConversationUpdate.onConversationUpdate();
1682		}
1683	}
1684
1685	public void updateAccountUi() {
1686		if (mOnAccountUpdate != null) {
1687			mOnAccountUpdate.onAccountUpdate();
1688		}
1689	}
1690
1691	public void updateRosterUi() {
1692		if (mOnRosterUpdate != null) {
1693			mOnRosterUpdate.onRosterUpdate();
1694		}
1695	}
1696
1697	public Account findAccountByJid(String accountJid) {
1698		for (Account account : this.accounts) {
1699			if (account.getJid().equals(accountJid)) {
1700				return account;
1701			}
1702		}
1703		return null;
1704	}
1705
1706	public Conversation findConversationByUuid(String uuid) {
1707		for (Conversation conversation : getConversations()) {
1708			if (conversation.getUuid().equals(uuid)) {
1709				return conversation;
1710			}
1711		}
1712		return null;
1713	}
1714
1715	public void markRead(Conversation conversation, boolean calledByUi) {
1716		mNotificationService.clear(conversation);
1717		String id = conversation.getLatestMarkableMessageId();
1718		conversation.markRead();
1719		if (confirmMessages() && id != null && calledByUi) {
1720			Log.d(Config.LOGTAG, conversation.getAccount().getJid()
1721					+ ": sending read marker for " + conversation.getName());
1722			Account account = conversation.getAccount();
1723			String to = conversation.getContactJid();
1724			this.sendMessagePacket(conversation.getAccount(),
1725					mMessageGenerator.confirm(account, to, id));
1726		}
1727		if (!calledByUi) {
1728			updateConversationUi();
1729		}
1730	}
1731
1732	public void failWaitingOtrMessages(Conversation conversation) {
1733		for (Message message : conversation.getMessages()) {
1734			if (message.getEncryption() == Message.ENCRYPTION_OTR
1735					&& message.getStatus() == Message.STATUS_WAITING) {
1736				markMessage(message, Message.STATUS_SEND_FAILED);
1737			}
1738		}
1739	}
1740
1741	public SecureRandom getRNG() {
1742		return this.mRandom;
1743	}
1744
1745	public MemorizingTrustManager getMemorizingTrustManager() {
1746		return this.mMemorizingTrustManager;
1747	}
1748
1749	public PowerManager getPowerManager() {
1750		return this.pm;
1751	}
1752
1753	public void replyWithNotAcceptable(Account account, MessagePacket packet) {
1754		if (account.getStatus() == Account.STATUS_ONLINE) {
1755			MessagePacket error = this.mMessageGenerator
1756					.generateNotAcceptable(packet);
1757			sendMessagePacket(account, error);
1758		}
1759	}
1760
1761	public void syncRosterToDisk(final Account account) {
1762		new Thread(new Runnable() {
1763
1764			@Override
1765			public void run() {
1766				databaseBackend.writeRoster(account.getRoster());
1767			}
1768		}).start();
1769
1770	}
1771
1772	public List<String> getKnownHosts() {
1773		List<String> hosts = new ArrayList<String>();
1774		for (Account account : getAccounts()) {
1775			if (!hosts.contains(account.getServer())) {
1776				hosts.add(account.getServer());
1777			}
1778			for (Contact contact : account.getRoster().getContacts()) {
1779				if (contact.showInRoster()) {
1780					String server = contact.getServer();
1781					if (server != null && !hosts.contains(server)) {
1782						hosts.add(server);
1783					}
1784				}
1785			}
1786		}
1787		return hosts;
1788	}
1789
1790	public List<String> getKnownConferenceHosts() {
1791		ArrayList<String> mucServers = new ArrayList<String>();
1792		for (Account account : accounts) {
1793			if (account.getXmppConnection() != null) {
1794				String server = account.getXmppConnection().getMucServer();
1795				if (server != null && !mucServers.contains(server)) {
1796					mucServers.add(server);
1797				}
1798			}
1799		}
1800		return mucServers;
1801	}
1802
1803	public void sendMessagePacket(Account account, MessagePacket packet) {
1804		XmppConnection connection = account.getXmppConnection();
1805		if (connection != null) {
1806			connection.sendMessagePacket(packet);
1807		}
1808	}
1809
1810	public void sendPresencePacket(Account account, PresencePacket packet) {
1811		XmppConnection connection = account.getXmppConnection();
1812		if (connection != null) {
1813			connection.sendPresencePacket(packet);
1814		}
1815	}
1816
1817	public void sendIqPacket(Account account, IqPacket packet,
1818			OnIqPacketReceived callback) {
1819		XmppConnection connection = account.getXmppConnection();
1820		if (connection != null) {
1821			connection.sendIqPacket(packet, callback);
1822		}
1823	}
1824
1825	public MessageGenerator getMessageGenerator() {
1826		return this.mMessageGenerator;
1827	}
1828
1829	public PresenceGenerator getPresenceGenerator() {
1830		return this.mPresenceGenerator;
1831	}
1832
1833	public IqGenerator getIqGenerator() {
1834		return this.mIqGenerator;
1835	}
1836
1837	public JingleConnectionManager getJingleConnectionManager() {
1838		return this.mJingleConnectionManager;
1839	}
1840
1841	public interface OnConversationUpdate {
1842		public void onConversationUpdate();
1843	}
1844
1845	public interface OnAccountUpdate {
1846		public void onAccountUpdate();
1847	}
1848
1849	public interface OnRosterUpdate {
1850		public void onRosterUpdate();
1851	}
1852
1853	public List<Contact> findContacts(String jid) {
1854		ArrayList<Contact> contacts = new ArrayList<Contact>();
1855		for (Account account : getAccounts()) {
1856			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
1857				Contact contact = account.getRoster().getContactFromRoster(jid);
1858				if (contact != null) {
1859					contacts.add(contact);
1860				}
1861			}
1862		}
1863		return contacts;
1864	}
1865
1866	public NotificationService getNotificationService() {
1867		return this.mNotificationService;
1868	}
1869
1870	public HttpConnectionManager getHttpConnectionManager() {
1871		return this.mHttpConnectionManager;
1872	}
1873	
1874	private class DeletedDownloadable implements Downloadable {
1875
1876		@Override
1877		public void start() {
1878			return;
1879		}
1880
1881		@Override
1882		public int getStatus() {
1883			return Downloadable.STATUS_DELETED;
1884		}
1885
1886		@Override
1887		public long getFileSize() {
1888			return 0;
1889		}
1890		
1891	}
1892}