XmppConnectionService.java

   1package eu.siacs.conversations.services;
   2
   3import java.text.ParseException;
   4import java.text.SimpleDateFormat;
   5import java.util.Collections;
   6import java.util.Comparator;
   7import java.util.Date;
   8import java.util.Hashtable;
   9import java.util.List;
  10import java.util.Locale;
  11import java.util.Random;
  12
  13import org.openintents.openpgp.OpenPgpError;
  14import org.openintents.openpgp.util.OpenPgpApi;
  15import org.openintents.openpgp.util.OpenPgpServiceConnection;
  16
  17import net.java.otr4j.OtrException;
  18import net.java.otr4j.session.Session;
  19import net.java.otr4j.session.SessionStatus;
  20
  21import eu.siacs.conversations.crypto.OnPgpEngineResult;
  22import eu.siacs.conversations.crypto.PgpEngine;
  23import eu.siacs.conversations.entities.Account;
  24import eu.siacs.conversations.entities.Contact;
  25import eu.siacs.conversations.entities.Conversation;
  26import eu.siacs.conversations.entities.Message;
  27import eu.siacs.conversations.entities.MucOptions;
  28import eu.siacs.conversations.entities.MucOptions.OnRenameListener;
  29import eu.siacs.conversations.entities.Presences;
  30import eu.siacs.conversations.persistance.DatabaseBackend;
  31import eu.siacs.conversations.persistance.FileBackend;
  32import eu.siacs.conversations.persistance.OnPhoneContactsMerged;
  33import eu.siacs.conversations.ui.OnAccountListChangedListener;
  34import eu.siacs.conversations.ui.OnConversationListChangedListener;
  35import eu.siacs.conversations.ui.OnRosterFetchedListener;
  36import eu.siacs.conversations.utils.ExceptionHelper;
  37import eu.siacs.conversations.utils.MessageParser;
  38import eu.siacs.conversations.utils.OnPhoneContactsLoadedListener;
  39import eu.siacs.conversations.utils.PhoneHelper;
  40import eu.siacs.conversations.utils.UIHelper;
  41import eu.siacs.conversations.xml.Element;
  42import eu.siacs.conversations.xmpp.OnBindListener;
  43import eu.siacs.conversations.xmpp.OnIqPacketReceived;
  44import eu.siacs.conversations.xmpp.OnMessagePacketReceived;
  45import eu.siacs.conversations.xmpp.OnPresencePacketReceived;
  46import eu.siacs.conversations.xmpp.OnStatusChanged;
  47import eu.siacs.conversations.xmpp.OnTLSExceptionReceived;
  48import eu.siacs.conversations.xmpp.XmppConnection;
  49import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
  50import eu.siacs.conversations.xmpp.jingle.OnJinglePacketReceived;
  51import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
  52import eu.siacs.conversations.xmpp.stanzas.IqPacket;
  53import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
  54import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
  55import android.app.AlarmManager;
  56import android.app.PendingIntent;
  57import android.app.Service;
  58import android.content.Context;
  59import android.content.Intent;
  60import android.content.SharedPreferences;
  61import android.database.ContentObserver;
  62import android.database.DatabaseUtils;
  63import android.net.ConnectivityManager;
  64import android.net.NetworkInfo;
  65import android.net.Uri;
  66import android.os.Binder;
  67import android.os.Bundle;
  68import android.os.IBinder;
  69import android.os.PowerManager;
  70import android.os.PowerManager.WakeLock;
  71import android.os.SystemClock;
  72import android.preference.PreferenceManager;
  73import android.provider.ContactsContract;
  74import android.util.Log;
  75
  76public class XmppConnectionService extends Service {
  77
  78	protected static final String LOGTAG = "xmppService";
  79	public DatabaseBackend databaseBackend;
  80	private FileBackend fileBackend;
  81
  82	public long startDate;
  83
  84	private static final int PING_MAX_INTERVAL = 300;
  85	private static final int PING_MIN_INTERVAL = 10;
  86	private static final int PING_TIMEOUT = 5;
  87	private static final int CONNECT_TIMEOUT = 60;
  88	private static final long CARBON_GRACE_PERIOD = 60000L;
  89
  90	private List<Account> accounts;
  91	private List<Conversation> conversations = null;
  92	private JingleConnectionManager mJingleConnectionManager = new JingleConnectionManager(
  93			this);
  94
  95	public OnConversationListChangedListener convChangedListener = null;
  96	private int convChangedListenerCount = 0;
  97	private OnAccountListChangedListener accountChangedListener = null;
  98	private OnTLSExceptionReceived tlsException = null;
  99
 100	public void setOnTLSExceptionReceivedListener(
 101			OnTLSExceptionReceived listener) {
 102		tlsException = listener;
 103	}
 104
 105	private Random mRandom = new Random(System.currentTimeMillis());
 106
 107	private long lastCarbonMessageReceived = -CARBON_GRACE_PERIOD;
 108
 109	private ContentObserver contactObserver = new ContentObserver(null) {
 110		@Override
 111		public void onChange(boolean selfChange) {
 112			super.onChange(selfChange);
 113			Log.d(LOGTAG, "contact list has changed");
 114			mergePhoneContactsWithRoster(null);
 115		}
 116	};
 117
 118	private XmppConnectionService service = this;
 119
 120	private final IBinder mBinder = new XmppConnectionBinder();
 121	private OnMessagePacketReceived messageListener = new OnMessagePacketReceived() {
 122
 123		@Override
 124		public void onMessagePacketReceived(Account account,
 125				MessagePacket packet) {
 126			Message message = null;
 127			boolean notify = true;
 128			if (getPreferences().getBoolean(
 129					"notification_grace_period_after_carbon_received", true)) {
 130				notify = (SystemClock.elapsedRealtime() - lastCarbonMessageReceived) > CARBON_GRACE_PERIOD;
 131			}
 132
 133			if ((packet.getType() == MessagePacket.TYPE_CHAT)) {
 134				String pgpBody = MessageParser.getPgpBody(packet);
 135				if (pgpBody != null) {
 136					message = MessageParser.parsePgpChat(pgpBody, packet,
 137							account, service);
 138					message.markUnread();
 139				} else if ((packet.getBody() != null)
 140						&& (packet.getBody().startsWith("?OTR"))) {
 141					message = MessageParser.parseOtrChat(packet, account,
 142							service);
 143					if (message != null) {
 144						message.markUnread();
 145					}
 146				} else if (packet.hasChild("body")) {
 147					message = MessageParser.parsePlainTextChat(packet, account,
 148							service);
 149					message.markUnread();
 150				} else if (packet.hasChild("received")
 151						|| (packet.hasChild("sent"))) {
 152					message = MessageParser.parseCarbonMessage(packet, account,
 153							service);
 154					if (message != null) {
 155						if (message.getStatus() == Message.STATUS_SEND) {
 156							lastCarbonMessageReceived = SystemClock
 157									.elapsedRealtime();
 158							notify = false;
 159							message.getConversation().markRead();
 160						} else {
 161							message.markUnread();
 162						}
 163					}
 164				}
 165
 166			} else if (packet.getType() == MessagePacket.TYPE_GROUPCHAT) {
 167				message = MessageParser
 168						.parseGroupchat(packet, account, service);
 169				if (message != null) {
 170					if (message.getStatus() == Message.STATUS_RECIEVED) {
 171						message.markUnread();
 172					} else {
 173						message.getConversation().markRead();
 174						notify = false;
 175					}
 176				}
 177			} else if (packet.getType() == MessagePacket.TYPE_ERROR) {
 178				MessageParser.parseError(packet, account, service);
 179				return;
 180			} else if (packet.getType() == MessagePacket.TYPE_NORMAL) {
 181				if (packet.hasChild("x")) {
 182					Element x = packet.findChild("x");
 183					if (x.hasChild("invite")) {
 184						findOrCreateConversation(account, packet.getFrom(),
 185								true);
 186						if (convChangedListener != null) {
 187							convChangedListener.onConversationListChanged();
 188						}
 189						Log.d(LOGTAG,
 190								"invitation received to " + packet.getFrom());
 191					}
 192
 193				} else {
 194					// Log.d(LOGTAG, "unparsed message " + packet.toString());
 195				}
 196			}
 197			if ((message == null) || (message.getBody() == null)) {
 198				return;
 199			}
 200			if (packet.hasChild("delay")) {
 201				try {
 202					String stamp = packet.findChild("delay").getAttribute(
 203							"stamp");
 204					stamp = stamp.replace("Z", "+0000");
 205					Date date = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssZ")
 206							.parse(stamp);
 207					message.setTime(date.getTime());
 208				} catch (ParseException e) {
 209					Log.d(LOGTAG, "error trying to parse date" + e.getMessage());
 210				}
 211			}
 212			Conversation conversation = message.getConversation();
 213			conversation.getMessages().add(message);
 214			if (packet.getType() != MessagePacket.TYPE_ERROR) {
 215				databaseBackend.createMessage(message);
 216			}
 217			if (convChangedListener != null) {
 218				convChangedListener.onConversationListChanged();
 219			} else {
 220				UIHelper.updateNotification(getApplicationContext(),
 221						getConversations(), message.getConversation(), notify);
 222			}
 223		}
 224	};
 225	private OnStatusChanged statusListener = new OnStatusChanged() {
 226
 227		@Override
 228		public void onStatusChanged(Account account) {
 229			if (accountChangedListener != null) {
 230				accountChangedListener.onAccountListChangedListener();
 231			}
 232			if (account.getStatus() == Account.STATUS_ONLINE) {
 233				List<Conversation> conversations = getConversations();
 234				for (int i = 0; i < conversations.size(); ++i) {
 235					if (conversations.get(i).getAccount() == account) {
 236						sendUnsendMessages(conversations.get(i));
 237					}
 238				}
 239				scheduleWakeupCall(PING_MAX_INTERVAL, true);
 240			} else if (account.getStatus() == Account.STATUS_OFFLINE) {
 241				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 242					int timeToReconnect = mRandom.nextInt(50) + 10;
 243					scheduleWakeupCall(timeToReconnect, false);
 244				}
 245
 246			} else if (account.getStatus() == Account.STATUS_REGISTRATION_SUCCESSFULL) {
 247				databaseBackend.updateAccount(account);
 248				reconnectAccount(account, true);
 249			} else {
 250				UIHelper.showErrorNotification(getApplicationContext(),
 251						getAccounts());
 252			}
 253		}
 254	};
 255
 256	private OnPresencePacketReceived presenceListener = new OnPresencePacketReceived() {
 257
 258		@Override
 259		public void onPresencePacketReceived(final Account account,
 260				PresencePacket packet) {
 261			if (packet.hasChild("x", "http://jabber.org/protocol/muc#user")) {
 262				Conversation muc = findMuc(
 263						packet.getAttribute("from").split("/")[0], account);
 264				if (muc != null) {
 265					muc.getMucOptions().processPacket(packet);
 266				} else {
 267					Log.d(LOGTAG, account.getJid()
 268							+ ": could not find muc for received muc package "
 269							+ packet.toString());
 270				}
 271			} else if (packet.hasChild("x", "http://jabber.org/protocol/muc")) {
 272				Conversation muc = findMuc(
 273						packet.getAttribute("from").split("/")[0], account);
 274				if (muc != null) {
 275					Log.d(LOGTAG,
 276							account.getJid() + ": reading muc status packet "
 277									+ packet.toString());
 278					int error = muc.getMucOptions().getError();
 279					muc.getMucOptions().processPacket(packet);
 280					if ((muc.getMucOptions().getError() != error)
 281							&& (convChangedListener != null)) {
 282						Log.d(LOGTAG, "muc error status changed");
 283						convChangedListener.onConversationListChanged();
 284					}
 285				}
 286			} else {
 287				String[] fromParts = packet.getAttribute("from").split("/");
 288				String type = packet.getAttribute("type");
 289				if (fromParts[0].equals(account.getJid())) {
 290					if (fromParts.length == 2) {
 291						if (type == null) {
 292							account.updatePresence(fromParts[1], Presences
 293									.parseShow(packet.findChild("show")));
 294						} else if (type.equals("unavailable")) {
 295							account.removePresence(fromParts[1]);
 296						}
 297					}
 298
 299				} else {
 300					Contact contact = findContact(account, fromParts[0]);
 301					if (contact == null) {
 302						if ("subscribe".equals(type)) {
 303							account.getXmppConnection().addPendingSubscription(
 304									fromParts[0]);
 305						} else {
 306							// Log.d(LOGTAG,packet.getFrom()+
 307							// " could not be found");
 308						}
 309						return;
 310					}
 311					if (type == null) {
 312						if (fromParts.length == 2) {
 313							contact.updatePresence(fromParts[1], Presences
 314									.parseShow(packet.findChild("show")));
 315							PgpEngine pgp = getPgpEngine();
 316							if (pgp != null) {
 317								Element x = packet.findChild("x",
 318										"jabber:x:signed");
 319								if (x != null) {
 320									Element status = packet.findChild("status");
 321									String msg;
 322									if (status != null) {
 323										msg = status.getContent();
 324									} else {
 325										msg = "";
 326									}
 327									contact.setPgpKeyId(pgp.fetchKeyId(account,msg,x.getContent()));
 328									Log.d("xmppService","fetched key id for "+contact.getDisplayName()+" was:"+contact.getPgpKeyId());
 329								}
 330							}
 331							replaceContactInConversation(account,
 332									contact.getJid(), contact);
 333								databaseBackend.updateContact(contact, true);
 334						} else {
 335							// Log.d(LOGTAG,"presence without resource "+packet.toString());
 336						}
 337					} else if (type.equals("unavailable")) {
 338						if (fromParts.length != 2) {
 339							contact.clearPresences();
 340						} else {
 341							contact.removePresence(fromParts[1]);
 342						}
 343						replaceContactInConversation(account, contact.getJid(),
 344								contact);
 345						databaseBackend.updateContact(contact, true);
 346					} else if (type.equals("subscribe")) {
 347						Log.d(LOGTAG, "received subscribe packet from "
 348								+ packet.getFrom());
 349						if (contact
 350								.getSubscriptionOption(Contact.Subscription.PREEMPTIVE_GRANT)) {
 351							Log.d(LOGTAG, "preemptive grant; granting");
 352							sendPresenceUpdatesTo(contact);
 353							contact.setSubscriptionOption(Contact.Subscription.FROM);
 354							contact.resetSubscriptionOption(Contact.Subscription.PREEMPTIVE_GRANT);
 355							replaceContactInConversation(account,
 356									contact.getJid(), contact);
 357							databaseBackend.updateContact(contact, false);
 358							if ((contact
 359									.getSubscriptionOption(Contact.Subscription.ASKING))
 360									&& (!contact
 361											.getSubscriptionOption(Contact.Subscription.TO))) {
 362								requestPresenceUpdatesFrom(contact);
 363							}
 364						} else {
 365							account.getXmppConnection().addPendingSubscription(
 366									fromParts[0]);
 367						}
 368					} else {
 369						// Log.d(LOGTAG, packet.toString());
 370					}
 371				}
 372			}
 373		}
 374	};
 375
 376	private OnIqPacketReceived unknownIqListener = new OnIqPacketReceived() {
 377
 378		@Override
 379		public void onIqPacketReceived(Account account, IqPacket packet) {
 380			if (packet.hasChild("query","jabber:iq:roster")) {
 381				String from = packet.getFrom();
 382				if ((from==null)||(from.equals(account.getJid()))) {
 383					Element query = packet.findChild("query");
 384					processRosterItems(account, query);
 385					mergePhoneContactsWithRoster(null);
 386				} else {
 387					Log.d(LOGTAG,"unauthorized roster push from: "+from);
 388				}
 389			} else if (packet
 390					.hasChild("open", "http://jabber.org/protocol/ibb")
 391					|| packet
 392							.hasChild("data", "http://jabber.org/protocol/ibb")) {
 393				XmppConnectionService.this.mJingleConnectionManager
 394						.deliverIbbPacket(account, packet);
 395			} else if (packet.hasChild("query","http://jabber.org/protocol/disco#info")) {
 396				IqPacket iqResponse = packet.generateRespone(IqPacket.TYPE_RESULT);
 397				Element query = iqResponse.addChild("query", "http://jabber.org/protocol/disco#info");
 398				query.addChild("feature").setAttribute("var", "urn:xmpp:jingle:1");
 399				query.addChild("feature").setAttribute("var", "urn:xmpp:jingle:apps:file-transfer:3");
 400				query.addChild("feature").setAttribute("var", "urn:xmpp:jingle:transports:s5b:1");
 401				query.addChild("feature").setAttribute("var", "urn:xmpp:jingle:transports:ibb:1");
 402				account.getXmppConnection().sendIqPacket(iqResponse, null);
 403			} else {
 404				if ((packet.getType() == IqPacket.TYPE_GET)||(packet.getType() == IqPacket.TYPE_SET)) {
 405					IqPacket response = packet.generateRespone(IqPacket.TYPE_ERROR);
 406					Element error = response.addChild("error");
 407					error.setAttribute("type","cancel");
 408					error.addChild("feature-not-implemented","urn:ietf:params:xml:ns:xmpp-stanzas");
 409					account.getXmppConnection().sendIqPacket(response, null);
 410				}
 411			}
 412		}
 413	};
 414
 415	private OnJinglePacketReceived jingleListener = new OnJinglePacketReceived() {
 416
 417		@Override
 418		public void onJinglePacketReceived(Account account, JinglePacket packet) {
 419			mJingleConnectionManager.deliverPacket(account, packet);
 420		}
 421	};
 422
 423	private OpenPgpServiceConnection pgpServiceConnection;
 424	private PgpEngine mPgpEngine = null;
 425	private Intent pingIntent;
 426	private PendingIntent pendingPingIntent = null;
 427	private WakeLock wakeLock;
 428	private PowerManager pm;
 429
 430	public PgpEngine getPgpEngine() {
 431		if (pgpServiceConnection.isBound()) {
 432			if (this.mPgpEngine == null) {
 433				this.mPgpEngine = new PgpEngine(new OpenPgpApi(
 434						getApplicationContext(),
 435						pgpServiceConnection.getService()));
 436			}
 437			return mPgpEngine;
 438		} else {
 439			return null;
 440		}
 441
 442	}
 443
 444	public FileBackend getFileBackend() {
 445		return this.fileBackend;
 446	}
 447
 448	public void attachImageToConversation(final Conversation conversation,
 449			final String presence, final Uri uri) {
 450		new Thread(new Runnable() {
 451
 452			@Override
 453			public void run() {
 454				Message message = new Message(conversation, "",
 455						Message.ENCRYPTION_NONE);
 456				message.setPresence(presence);
 457				message.setType(Message.TYPE_IMAGE);
 458				message.setStatus(Message.STATUS_PREPARING);
 459				conversation.getMessages().add(message);
 460				if (convChangedListener != null) {
 461					convChangedListener.onConversationListChanged();
 462				}
 463				getFileBackend().copyImageToPrivateStorage(message, uri);
 464				message.setStatus(Message.STATUS_OFFERED);
 465				databaseBackend.createMessage(message);
 466				if (convChangedListener != null) {
 467					convChangedListener.onConversationListChanged();
 468				}
 469				sendMessage(message, null);
 470			}
 471		}).start();
 472	}
 473
 474	protected Conversation findMuc(String name, Account account) {
 475		for (Conversation conversation : this.conversations) {
 476			if (conversation.getContactJid().split("/")[0].equals(name)
 477					&& (conversation.getAccount() == account)) {
 478				return conversation;
 479			}
 480		}
 481		return null;
 482	}
 483
 484	private void processRosterItems(Account account, Element elements) {
 485		String version = elements.getAttribute("ver");
 486		if (version != null) {
 487			account.setRosterVersion(version);
 488			databaseBackend.updateAccount(account);
 489		}
 490		for (Element item : elements.getChildren()) {
 491			if (item.getName().equals("item")) {
 492				String jid = item.getAttribute("jid");
 493				String subscription = item.getAttribute("subscription");
 494				Contact contact = databaseBackend.findContact(account, jid);
 495				if (contact == null) {
 496					if (!subscription.equals("remove")) {
 497						String name = item.getAttribute("name");
 498						if (name == null) {
 499							name = jid.split("@")[0];
 500						}
 501						contact = new Contact(account, name, jid, null);
 502						contact.parseSubscriptionFromElement(item);
 503						databaseBackend.createContact(contact);
 504					}
 505				} else {
 506					if (subscription.equals("remove")) {
 507						databaseBackend.deleteContact(contact);
 508						replaceContactInConversation(account, contact.getJid(),
 509								null);
 510					} else {
 511						contact.parseSubscriptionFromElement(item);
 512						databaseBackend.updateContact(contact, false);
 513						replaceContactInConversation(account, contact.getJid(),
 514								contact);
 515					}
 516				}
 517			}
 518		}
 519	}
 520
 521	private void replaceContactInConversation(Account account, String jid,
 522			Contact contact) {
 523		List<Conversation> conversations = getConversations();
 524		for (Conversation c : conversations) {
 525			if (c.getContactJid().equals(jid) && (c.getAccount() == account)) {
 526				c.setContact(contact);
 527				break;
 528			}
 529		}
 530	}
 531
 532	public class XmppConnectionBinder extends Binder {
 533		public XmppConnectionService getService() {
 534			return XmppConnectionService.this;
 535		}
 536	}
 537
 538	@Override
 539	public int onStartCommand(Intent intent, int flags, int startId) {
 540		this.wakeLock.acquire();
 541		// Log.d(LOGTAG,"calling start service. caller was:"+intent.getAction());
 542		ConnectivityManager cm = (ConnectivityManager) getApplicationContext()
 543				.getSystemService(Context.CONNECTIVITY_SERVICE);
 544		NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
 545		boolean isConnected = activeNetwork != null
 546				&& activeNetwork.isConnected();
 547
 548		for (Account account : accounts) {
 549			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 550				if (!isConnected) {
 551					account.setStatus(Account.STATUS_NO_INTERNET);
 552					if (statusListener != null) {
 553						statusListener.onStatusChanged(account);
 554					}
 555				} else {
 556					if (account.getStatus() == Account.STATUS_NO_INTERNET) {
 557						account.setStatus(Account.STATUS_OFFLINE);
 558						if (statusListener != null) {
 559							statusListener.onStatusChanged(account);
 560						}
 561					}
 562
 563					// TODO 3 remaining cases
 564					if (account.getStatus() == Account.STATUS_ONLINE) {
 565						long lastReceived = account.getXmppConnection().lastPaketReceived;
 566						long lastSent = account.getXmppConnection().lastPingSent;
 567						if (lastSent - lastReceived >= PING_TIMEOUT * 1000) {
 568							Log.d(LOGTAG, account.getJid() + ": ping timeout");
 569							this.reconnectAccount(account, true);
 570						} else if (SystemClock.elapsedRealtime() - lastReceived >= PING_MIN_INTERVAL * 1000) {
 571							account.getXmppConnection().sendPing();
 572							account.getXmppConnection().lastPingSent = SystemClock
 573									.elapsedRealtime();
 574							this.scheduleWakeupCall(2, false);
 575						}
 576					} else if (account.getStatus() == Account.STATUS_OFFLINE) {
 577						if (account.getXmppConnection() == null) {
 578							account.setXmppConnection(this
 579									.createConnection(account));
 580						}
 581						account.getXmppConnection().lastPingSent = SystemClock
 582								.elapsedRealtime();
 583						new Thread(account.getXmppConnection()).start();
 584					} else if ((account.getStatus() == Account.STATUS_CONNECTING)
 585							&& ((SystemClock.elapsedRealtime() - account
 586									.getXmppConnection().lastConnect) / 1000 >= CONNECT_TIMEOUT)) {
 587						Log.d(LOGTAG, account.getJid()
 588								+ ": time out during connect reconnecting");
 589						reconnectAccount(account, true);
 590					} else {
 591						Log.d(LOGTAG,
 592								"seconds since last connect:"
 593										+ ((SystemClock.elapsedRealtime() - account
 594												.getXmppConnection().lastConnect) / 1000));
 595						Log.d(LOGTAG,
 596								account.getJid() + ": status="
 597										+ account.getStatus());
 598						// TODO notify user of ssl cert problem or auth problem
 599						// or what ever
 600					}
 601					// in any case. reschedule wakup call
 602					this.scheduleWakeupCall(PING_MAX_INTERVAL, true);
 603				}
 604				if (accountChangedListener != null) {
 605					accountChangedListener.onAccountListChangedListener();
 606				}
 607			}
 608		}
 609		if (wakeLock.isHeld()) {
 610			wakeLock.release();
 611		}
 612		return START_STICKY;
 613	}
 614
 615	@Override
 616	public void onCreate() {
 617		ExceptionHelper.init(getApplicationContext());
 618		this.databaseBackend = DatabaseBackend
 619				.getInstance(getApplicationContext());
 620		this.fileBackend = new FileBackend(getApplicationContext());
 621		this.accounts = databaseBackend.getAccounts();
 622
 623		this.getConversations();
 624
 625		getContentResolver().registerContentObserver(
 626				ContactsContract.Contacts.CONTENT_URI, true, contactObserver);
 627		this.pgpServiceConnection = new OpenPgpServiceConnection(
 628				getApplicationContext(), "org.sufficientlysecure.keychain");
 629		this.pgpServiceConnection.bindToService();
 630
 631		this.pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 632		this.wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
 633				"XmppConnectionService");
 634	}
 635
 636	@Override
 637	public void onDestroy() {
 638		Log.d(LOGTAG,"stopping service");
 639		super.onDestroy();
 640		for (Account account : accounts) {
 641			if (account.getXmppConnection() != null) {
 642				disconnect(account, true);
 643			}
 644		}
 645	}
 646
 647	protected void scheduleWakeupCall(int seconds, boolean ping) {
 648		long timeToWake = SystemClock.elapsedRealtime() + seconds * 1000;
 649		Context context = getApplicationContext();
 650		AlarmManager alarmManager = (AlarmManager) context
 651				.getSystemService(Context.ALARM_SERVICE);
 652
 653		if (ping) {
 654			if (this.pingIntent == null) {
 655				this.pingIntent = new Intent(context, EventReceiver.class);
 656				this.pingIntent.setAction("ping");
 657				this.pingIntent.putExtra("time", timeToWake);
 658				this.pendingPingIntent = PendingIntent.getBroadcast(context, 0,
 659						this.pingIntent, 0);
 660				alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
 661						timeToWake, pendingPingIntent);
 662				// Log.d(LOGTAG,"schedule ping in "+seconds+" seconds");
 663			} else {
 664				long scheduledTime = this.pingIntent.getLongExtra("time", 0);
 665				if (scheduledTime < SystemClock.elapsedRealtime()
 666						|| (scheduledTime > timeToWake)) {
 667					this.pingIntent.putExtra("time", timeToWake);
 668					alarmManager.cancel(this.pendingPingIntent);
 669					this.pendingPingIntent = PendingIntent.getBroadcast(
 670							context, 0, this.pingIntent, 0);
 671					alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
 672							timeToWake, pendingPingIntent);
 673					// Log.d(LOGTAG,"reschedule old ping to ping in "+seconds+" seconds");
 674				}
 675			}
 676		} else {
 677			Intent intent = new Intent(context, EventReceiver.class);
 678			intent.setAction("ping_check");
 679			PendingIntent alarmIntent = PendingIntent.getBroadcast(context, 0,
 680					intent, 0);
 681			alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake,
 682					alarmIntent);
 683		}
 684
 685	}
 686
 687	public XmppConnection createConnection(Account account) {
 688		SharedPreferences sharedPref = getPreferences();
 689		account.setResource(sharedPref.getString("resource", "mobile")
 690				.toLowerCase(Locale.getDefault()));
 691		XmppConnection connection = new XmppConnection(account, this.pm);
 692		connection.setOnMessagePacketReceivedListener(this.messageListener);
 693		connection.setOnStatusChangedListener(this.statusListener);
 694		connection.setOnPresencePacketReceivedListener(this.presenceListener);
 695		connection
 696				.setOnUnregisteredIqPacketReceivedListener(this.unknownIqListener);
 697		connection.setOnJinglePacketReceivedListener(this.jingleListener);
 698		connection
 699				.setOnTLSExceptionReceivedListener(new OnTLSExceptionReceived() {
 700
 701					@Override
 702					public void onTLSExceptionReceived(String fingerprint,
 703							Account account) {
 704						Log.d(LOGTAG, "tls exception arrived in service");
 705						if (tlsException != null) {
 706							tlsException.onTLSExceptionReceived(fingerprint,
 707									account);
 708						}
 709					}
 710				});
 711		connection.setOnBindListener(new OnBindListener() {
 712
 713			@Override
 714			public void onBind(Account account) {
 715				databaseBackend.clearPresences(account);
 716				account.clearPresences(); // self presences
 717				if (account.getXmppConnection().hasFeatureRosterManagment()) {
 718					updateRoster(account, null);
 719				}
 720				connectMultiModeConversations(account);
 721				if (convChangedListener != null) {
 722					convChangedListener.onConversationListChanged();
 723				}
 724			}
 725		});
 726		return connection;
 727	}
 728
 729	synchronized public void sendMessage(Message message, String presence) {
 730		Account account = message.getConversation().getAccount();
 731		Conversation conv = message.getConversation();
 732		MessagePacket packet = null;
 733		boolean saveInDb = false;
 734		boolean addToConversation = false;
 735		boolean send = false;
 736		if (account.getStatus() == Account.STATUS_ONLINE) {
 737			if (message.getType() == Message.TYPE_IMAGE) {
 738				mJingleConnectionManager.createNewConnection(message);
 739			} else {
 740				if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 741					if (!conv.hasValidOtrSession()) {
 742						// starting otr session. messages will be send later
 743						conv.startOtrSession(getApplicationContext(), presence,
 744								true);
 745					} else if (conv.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) {
 746						// otr session aleary exists, creating message packet
 747						// accordingly
 748						packet = prepareMessagePacket(account, message,
 749								conv.getOtrSession());
 750						send = true;
 751						message.setStatus(Message.STATUS_SEND);
 752					}
 753					saveInDb = true;
 754					addToConversation = true;
 755				} else if (message.getEncryption() == Message.ENCRYPTION_PGP) {
 756					message.getConversation().endOtrIfNeeded();
 757					long keyId = message.getConversation().getContact()
 758							.getPgpKeyId();
 759					packet = new MessagePacket();
 760					packet.setType(MessagePacket.TYPE_CHAT);
 761					packet.setFrom(message.getConversation().getAccount()
 762							.getFullJid());
 763					packet.setTo(message.getCounterpart());
 764					packet.setBody("This is an XEP-0027 encryted message");
 765					packet.addChild("x", "jabber:x:encrypted").setContent(
 766							message.getEncryptedBody());
 767					message.setStatus(Message.STATUS_SEND);
 768					message.setEncryption(Message.ENCRYPTION_DECRYPTED);
 769					saveInDb = true;
 770					addToConversation = true;
 771					send = true;
 772				} else {
 773					message.getConversation().endOtrIfNeeded();
 774					// don't encrypt
 775					if (message.getConversation().getMode() == Conversation.MODE_SINGLE) {
 776						message.setStatus(Message.STATUS_SEND);
 777						saveInDb = true;
 778						addToConversation = true;
 779					}
 780					packet = prepareMessagePacket(account, message, null);
 781					send = true;
 782				}
 783			}
 784		} else {
 785			// account is offline
 786			saveInDb = true;
 787			addToConversation = true;
 788
 789		}
 790		if (saveInDb) {
 791			databaseBackend.createMessage(message);
 792		}
 793		if (addToConversation) {
 794			conv.getMessages().add(message);
 795			if (convChangedListener != null) {
 796				convChangedListener.onConversationListChanged();
 797			}
 798		}
 799		if ((send) && (packet != null)) {
 800			account.getXmppConnection().sendMessagePacket(packet);
 801		}
 802
 803	}
 804
 805	private void sendUnsendMessages(Conversation conversation) {
 806		for (int i = 0; i < conversation.getMessages().size(); ++i) {
 807			if ((conversation.getMessages().get(i).getStatus() == Message.STATUS_UNSEND)
 808					&& (conversation.getMessages().get(i).getEncryption() == Message.ENCRYPTION_NONE)) {
 809				Message message = conversation.getMessages().get(i);
 810				MessagePacket packet = prepareMessagePacket(
 811						conversation.getAccount(), message, null);
 812				conversation.getAccount().getXmppConnection()
 813						.sendMessagePacket(packet);
 814				message.setStatus(Message.STATUS_SEND);
 815				if (conversation.getMode() == Conversation.MODE_SINGLE) {
 816					databaseBackend.updateMessage(message);
 817				} else {
 818					databaseBackend.deleteMessage(message);
 819					conversation.getMessages().remove(i);
 820					i--;
 821				}
 822			}
 823		}
 824	}
 825
 826	public MessagePacket prepareMessagePacket(Account account, Message message,
 827			Session otrSession) {
 828		MessagePacket packet = new MessagePacket();
 829		if (message.getConversation().getMode() == Conversation.MODE_SINGLE) {
 830			packet.setType(MessagePacket.TYPE_CHAT);
 831			if (otrSession != null) {
 832				try {
 833					packet.setBody(otrSession.transformSending(message
 834							.getBody()));
 835				} catch (OtrException e) {
 836					Log.d(LOGTAG,
 837							account.getJid()
 838									+ ": could not encrypt message to "
 839									+ message.getCounterpart());
 840				}
 841				packet.addChild("private", "urn:xmpp:carbons:2");
 842				packet.addChild("no-copy", "urn:xmpp:hints");
 843				packet.setTo(otrSession.getSessionID().getAccountID() + "/"
 844						+ otrSession.getSessionID().getUserID());
 845				packet.setFrom(account.getFullJid());
 846			} else {
 847				packet.setBody(message.getBody());
 848				packet.setTo(message.getCounterpart());
 849				packet.setFrom(account.getJid());
 850			}
 851		} else if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
 852			packet.setType(MessagePacket.TYPE_GROUPCHAT);
 853			packet.setBody(message.getBody());
 854			packet.setTo(message.getCounterpart().split("/")[0]);
 855			packet.setFrom(account.getJid());
 856		}
 857		packet.setId(message.getUuid());
 858		return packet;
 859	}
 860
 861	private void getRoster(Account account,
 862			final OnRosterFetchedListener listener) {
 863		List<Contact> contacts = databaseBackend.getContactsByAccount(account);
 864		for (int i = 0; i < contacts.size(); ++i) {
 865			contacts.get(i).setAccount(account);
 866		}
 867		if (listener != null) {
 868			listener.onRosterFetched(contacts);
 869		}
 870	}
 871
 872	public List<Contact> getRoster(Account account) {
 873		List<Contact> contacts = databaseBackend.getContactsByAccount(account);
 874		for (int i = 0; i < contacts.size(); ++i) {
 875			contacts.get(i).setAccount(account);
 876		}
 877		return contacts;
 878	}
 879
 880	public void updateRoster(final Account account,
 881			final OnRosterFetchedListener listener) {
 882		IqPacket iqPacket = new IqPacket(IqPacket.TYPE_GET);
 883		if (!"".equals(account.getRosterVersion())) {
 884			Log.d(LOGTAG, account.getJid() + ": fetching roster version "
 885					+ account.getRosterVersion());
 886		} else {
 887			Log.d(LOGTAG, account.getJid() + ": fetching roster");
 888		}
 889		iqPacket.query("jabber:iq:roster").setAttribute("ver",
 890				account.getRosterVersion());
 891		account.getXmppConnection().sendIqPacket(iqPacket,
 892				new OnIqPacketReceived() {
 893
 894					@Override
 895					public void onIqPacketReceived(final Account account,
 896							IqPacket packet) {
 897						Element roster = packet.findChild("query");
 898						if (roster != null) {
 899							Log.d(LOGTAG, account.getJid()
 900									+ ": processing roster");
 901							processRosterItems(account, roster);
 902							StringBuilder mWhere = new StringBuilder();
 903							mWhere.append("jid NOT IN(");
 904							List<Element> items = roster.getChildren();
 905							for (int i = 0; i < items.size(); ++i) {
 906								mWhere.append(DatabaseUtils
 907										.sqlEscapeString(items.get(i)
 908												.getAttribute("jid")));
 909								if (i != items.size() - 1) {
 910									mWhere.append(",");
 911								}
 912							}
 913							mWhere.append(") and accountUuid = \"");
 914							mWhere.append(account.getUuid());
 915							mWhere.append("\"");
 916							List<Contact> contactsToDelete = databaseBackend
 917									.getContacts(mWhere.toString());
 918							for (Contact contact : contactsToDelete) {
 919								databaseBackend.deleteContact(contact);
 920								replaceContactInConversation(account,
 921										contact.getJid(), null);
 922							}
 923
 924						} else {
 925							Log.d(LOGTAG, account.getJid()
 926									+ ": empty roster returend");
 927						}
 928						mergePhoneContactsWithRoster(new OnPhoneContactsMerged() {
 929
 930							@Override
 931							public void phoneContactsMerged() {
 932								if (listener != null) {
 933									getRoster(account, listener);
 934								}
 935							}
 936						});
 937					}
 938				});
 939	}
 940
 941	public void mergePhoneContactsWithRoster(
 942			final OnPhoneContactsMerged listener) {
 943		PhoneHelper.loadPhoneContacts(getApplicationContext(),
 944				new OnPhoneContactsLoadedListener() {
 945					@Override
 946					public void onPhoneContactsLoaded(
 947							Hashtable<String, Bundle> phoneContacts) {
 948						List<Contact> contacts = databaseBackend
 949								.getContactsByAccount(null);
 950						for (int i = 0; i < contacts.size(); ++i) {
 951							Contact contact = contacts.get(i);
 952							if (phoneContacts.containsKey(contact.getJid())) {
 953								Bundle phoneContact = phoneContacts.get(contact
 954										.getJid());
 955								String systemAccount = phoneContact
 956										.getInt("phoneid")
 957										+ "#"
 958										+ phoneContact.getString("lookup");
 959								contact.setSystemAccount(systemAccount);
 960								contact.setPhotoUri(phoneContact
 961										.getString("photouri"));
 962								contact.setDisplayName(phoneContact
 963										.getString("displayname"));
 964								databaseBackend.updateContact(contact, false);
 965								replaceContactInConversation(
 966										contact.getAccount(), contact.getJid(),
 967										contact);
 968							} else {
 969								if ((contact.getSystemAccount() != null)
 970										|| (contact.getProfilePhoto() != null)) {
 971									contact.setSystemAccount(null);
 972									contact.setPhotoUri(null);
 973									databaseBackend.updateContact(contact,
 974											false);
 975									replaceContactInConversation(
 976											contact.getAccount(),
 977											contact.getJid(), contact);
 978								}
 979							}
 980						}
 981						if (listener != null) {
 982							listener.phoneContactsMerged();
 983						}
 984					}
 985				});
 986	}
 987
 988	public List<Conversation> getConversations() {
 989		if (this.conversations == null) {
 990			Hashtable<String, Account> accountLookupTable = new Hashtable<String, Account>();
 991			for (Account account : this.accounts) {
 992				accountLookupTable.put(account.getUuid(), account);
 993			}
 994			this.conversations = databaseBackend
 995					.getConversations(Conversation.STATUS_AVAILABLE);
 996			for (Conversation conv : this.conversations) {
 997				Account account = accountLookupTable.get(conv.getAccountUuid());
 998				conv.setAccount(account);
 999				conv.setContact(findContact(account, conv.getContactJid()));
1000				conv.setMessages(databaseBackend.getMessages(conv, 50));
1001			}
1002		}
1003		Collections.sort(this.conversations, new Comparator<Conversation>() {
1004			@Override
1005			public int compare(Conversation lhs, Conversation rhs) {
1006				return (int) (rhs.getLatestMessage().getTimeSent() - lhs
1007						.getLatestMessage().getTimeSent());
1008			}
1009		});
1010		return this.conversations;
1011	}
1012
1013	public List<Account> getAccounts() {
1014		return this.accounts;
1015	}
1016
1017	public Contact findContact(Account account, String jid) {
1018		Contact contact = databaseBackend.findContact(account, jid);
1019		if (contact != null) {
1020			contact.setAccount(account);
1021		}
1022		return contact;
1023	}
1024
1025	public Conversation findOrCreateConversation(Account account, String jid,
1026			boolean muc) {
1027		for (Conversation conv : this.getConversations()) {
1028			if ((conv.getAccount().equals(account))
1029					&& (conv.getContactJid().split("/")[0].equals(jid))) {
1030				return conv;
1031			}
1032		}
1033		Conversation conversation = databaseBackend.findConversation(account,
1034				jid);
1035		if (conversation != null) {
1036			conversation.setStatus(Conversation.STATUS_AVAILABLE);
1037			conversation.setAccount(account);
1038			if (muc) {
1039				conversation.setMode(Conversation.MODE_MULTI);
1040			} else {
1041				conversation.setMode(Conversation.MODE_SINGLE);
1042			}
1043			conversation.setMessages(databaseBackend.getMessages(conversation,
1044					50));
1045			this.databaseBackend.updateConversation(conversation);
1046			conversation.setContact(findContact(account,
1047					conversation.getContactJid()));
1048		} else {
1049			String conversationName;
1050			Contact contact = findContact(account, jid);
1051			if (contact != null) {
1052				conversationName = contact.getDisplayName();
1053			} else {
1054				conversationName = jid.split("@")[0];
1055			}
1056			if (muc) {
1057				conversation = new Conversation(conversationName, account, jid,
1058						Conversation.MODE_MULTI);
1059			} else {
1060				conversation = new Conversation(conversationName, account, jid,
1061						Conversation.MODE_SINGLE);
1062			}
1063			conversation.setContact(contact);
1064			this.databaseBackend.createConversation(conversation);
1065		}
1066		this.conversations.add(conversation);
1067		if ((account.getStatus() == Account.STATUS_ONLINE)
1068				&& (conversation.getMode() == Conversation.MODE_MULTI)) {
1069			joinMuc(conversation);
1070		}
1071		if (this.convChangedListener != null) {
1072			this.convChangedListener.onConversationListChanged();
1073		}
1074		return conversation;
1075	}
1076
1077	public void archiveConversation(Conversation conversation) {
1078		if (conversation.getMode() == Conversation.MODE_MULTI) {
1079			leaveMuc(conversation);
1080		} else {
1081			conversation.endOtrIfNeeded();
1082		}
1083		this.databaseBackend.updateConversation(conversation);
1084		this.conversations.remove(conversation);
1085		if (this.convChangedListener != null) {
1086			this.convChangedListener.onConversationListChanged();
1087		}
1088	}
1089
1090	public void clearConversationHistory(Conversation conversation) {
1091		this.databaseBackend.deleteMessagesInConversation(conversation);
1092		this.fileBackend.removeFiles(conversation);
1093		conversation.getMessages().clear();
1094		if (this.convChangedListener != null) {
1095			this.convChangedListener.onConversationListChanged();
1096		}
1097	}
1098
1099	public int getConversationCount() {
1100		return this.databaseBackend.getConversationCount();
1101	}
1102
1103	public void createAccount(Account account) {
1104		databaseBackend.createAccount(account);
1105		this.accounts.add(account);
1106		this.reconnectAccount(account, false);
1107		if (accountChangedListener != null)
1108			accountChangedListener.onAccountListChangedListener();
1109	}
1110
1111	public void deleteContact(Contact contact) {
1112		IqPacket iq = new IqPacket(IqPacket.TYPE_SET);
1113		Element query = iq.query("jabber:iq:roster");
1114		query.addChild("item").setAttribute("jid", contact.getJid())
1115				.setAttribute("subscription", "remove");
1116		contact.getAccount().getXmppConnection().sendIqPacket(iq, null);
1117		replaceContactInConversation(contact.getAccount(), contact.getJid(),
1118				null);
1119		databaseBackend.deleteContact(contact);
1120	}
1121
1122	public void updateAccount(Account account) {
1123		this.statusListener.onStatusChanged(account);
1124		databaseBackend.updateAccount(account);
1125		reconnectAccount(account, false);
1126		if (accountChangedListener != null)
1127			accountChangedListener.onAccountListChangedListener();
1128	}
1129
1130	public void deleteAccount(Account account) {
1131		if (account.getXmppConnection() != null) {
1132			this.disconnect(account, true);
1133		}
1134		databaseBackend.deleteAccount(account);
1135		this.accounts.remove(account);
1136		if (accountChangedListener != null)
1137			accountChangedListener.onAccountListChangedListener();
1138	}
1139
1140	public void setOnConversationListChangedListener(
1141			OnConversationListChangedListener listener) {
1142		this.convChangedListener = listener;
1143		this.convChangedListenerCount++;
1144	}
1145
1146	public void removeOnConversationListChangedListener() {
1147		this.convChangedListenerCount--;
1148		if (this.convChangedListenerCount == 0) {
1149			this.convChangedListener = null;
1150		}
1151	}
1152
1153	public void setOnAccountListChangedListener(
1154			OnAccountListChangedListener listener) {
1155		this.accountChangedListener = listener;
1156	}
1157
1158	public void removeOnAccountListChangedListener() {
1159		this.accountChangedListener = null;
1160	}
1161
1162	public void connectMultiModeConversations(Account account) {
1163		List<Conversation> conversations = getConversations();
1164		for (int i = 0; i < conversations.size(); i++) {
1165			Conversation conversation = conversations.get(i);
1166			if ((conversation.getMode() == Conversation.MODE_MULTI)
1167					&& (conversation.getAccount() == account)) {
1168				joinMuc(conversation);
1169			}
1170		}
1171	}
1172
1173	public void joinMuc(Conversation conversation) {
1174		String[] mucParts = conversation.getContactJid().split("/");
1175		String muc;
1176		String nick;
1177		if (mucParts.length == 2) {
1178			muc = mucParts[0];
1179			nick = mucParts[1];
1180		} else {
1181			muc = mucParts[0];
1182			nick = conversation.getAccount().getUsername();
1183		}
1184		PresencePacket packet = new PresencePacket();
1185		packet.setAttribute("to", muc + "/" + nick);
1186		Element x = new Element("x");
1187		x.setAttribute("xmlns", "http://jabber.org/protocol/muc");
1188		if (conversation.getMessages().size() != 0) {
1189			long lastMsgTime = conversation.getLatestMessage().getTimeSent();
1190			long diff = (System.currentTimeMillis() - lastMsgTime) / 1000 - 1;
1191			x.addChild("history").setAttribute("seconds", diff + "");
1192		}
1193		packet.addChild(x);
1194		conversation.getAccount().getXmppConnection()
1195				.sendPresencePacket(packet);
1196	}
1197
1198	private OnRenameListener renameListener = null;
1199
1200	public void setOnRenameListener(OnRenameListener listener) {
1201		this.renameListener = listener;
1202	}
1203
1204	public void renameInMuc(final Conversation conversation, final String nick) {
1205		final MucOptions options = conversation.getMucOptions();
1206		if (options.online()) {
1207			options.setOnRenameListener(new OnRenameListener() {
1208
1209				@Override
1210				public void onRename(boolean success) {
1211					if (renameListener != null) {
1212						renameListener.onRename(success);
1213					}
1214					if (success) {
1215						String jid = conversation.getContactJid().split("/")[0] + "/"
1216								+ nick;
1217						conversation.setContactJid(jid);
1218						databaseBackend.updateConversation(conversation);
1219					}
1220				}
1221			});
1222			options.flagAboutToRename();
1223			PresencePacket packet = new PresencePacket();
1224			packet.setAttribute("to",
1225					conversation.getContactJid().split("/")[0] + "/" + nick);
1226			packet.setAttribute("from", conversation.getAccount().getFullJid());
1227
1228			conversation.getAccount().getXmppConnection()
1229					.sendPresencePacket(packet, null);
1230		} else {
1231			String jid = conversation.getContactJid().split("/")[0] + "/"
1232					+ nick;
1233			conversation.setContactJid(jid);
1234			databaseBackend.updateConversation(conversation);
1235			if (conversation.getAccount().getStatus() == Account.STATUS_ONLINE) {
1236				joinMuc(conversation);
1237			}
1238		}
1239	}
1240
1241	public void leaveMuc(Conversation conversation) {
1242		PresencePacket packet = new PresencePacket();
1243		packet.setAttribute("to", conversation.getContactJid().split("/")[0]
1244				+ "/" + conversation.getMucOptions().getNick());
1245		packet.setAttribute("from", conversation.getAccount().getFullJid());
1246		packet.setAttribute("type", "unavailable");
1247		Log.d(LOGTAG, "send leaving muc " + packet);
1248		conversation.getAccount().getXmppConnection()
1249				.sendPresencePacket(packet);
1250		conversation.getMucOptions().setOffline();
1251	}
1252
1253	public void disconnect(Account account, boolean force) {
1254		if ((account.getStatus() == Account.STATUS_ONLINE)
1255				|| (account.getStatus() == Account.STATUS_DISABLED)) {
1256			if (!force) {
1257				List<Conversation> conversations = getConversations();
1258				for (int i = 0; i < conversations.size(); i++) {
1259					Conversation conversation = conversations.get(i);
1260					if (conversation.getAccount() == account) {
1261						if (conversation.getMode() == Conversation.MODE_MULTI) {
1262							leaveMuc(conversation);
1263						} else {
1264							conversation.endOtrIfNeeded();
1265						}
1266					}
1267				}
1268			}
1269			account.getXmppConnection().disconnect(force);
1270		}
1271	}
1272
1273	@Override
1274	public IBinder onBind(Intent intent) {
1275		return mBinder;
1276	}
1277
1278	public void updateContact(Contact contact) {
1279		databaseBackend.updateContact(contact, false);
1280		replaceContactInConversation(contact.getAccount(), contact.getJid(),
1281				contact);
1282	}
1283
1284	public void updateMessage(Message message) {
1285		databaseBackend.updateMessage(message);
1286	}
1287
1288	public void createContact(Contact contact) {
1289		SharedPreferences sharedPref = getPreferences();
1290		boolean autoGrant = sharedPref.getBoolean("grant_new_contacts", true);
1291		if (autoGrant) {
1292			contact.setSubscriptionOption(Contact.Subscription.PREEMPTIVE_GRANT);
1293			contact.setSubscriptionOption(Contact.Subscription.ASKING);
1294		}
1295		databaseBackend.createContact(contact);
1296		IqPacket iq = new IqPacket(IqPacket.TYPE_SET);
1297		Element query = new Element("query");
1298		query.setAttribute("xmlns", "jabber:iq:roster");
1299		Element item = new Element("item");
1300		item.setAttribute("jid", contact.getJid());
1301		item.setAttribute("name", contact.getJid());
1302		query.addChild(item);
1303		iq.addChild(query);
1304		Account account = contact.getAccount();
1305		account.getXmppConnection().sendIqPacket(iq, null);
1306		if (autoGrant) {
1307			requestPresenceUpdatesFrom(contact);
1308			if (account.getXmppConnection().hasPendingSubscription(
1309					contact.getJid())) {
1310				Log.d("xmppService", "contact had pending subscription");
1311				sendPresenceUpdatesTo(contact);
1312			}
1313		}
1314		replaceContactInConversation(contact.getAccount(), contact.getJid(),
1315				contact);
1316	}
1317
1318	public void requestPresenceUpdatesFrom(Contact contact) {
1319		// Requesting a Subscription type=subscribe
1320		PresencePacket packet = new PresencePacket();
1321		packet.setAttribute("type", "subscribe");
1322		packet.setAttribute("to", contact.getJid());
1323		packet.setAttribute("from", contact.getAccount().getJid());
1324		Log.d(LOGTAG, packet.toString());
1325		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1326	}
1327
1328	public void stopPresenceUpdatesFrom(Contact contact) {
1329		// Unsubscribing type='unsubscribe'
1330		PresencePacket packet = new PresencePacket();
1331		packet.setAttribute("type", "unsubscribe");
1332		packet.setAttribute("to", contact.getJid());
1333		packet.setAttribute("from", contact.getAccount().getJid());
1334		Log.d(LOGTAG, packet.toString());
1335		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1336	}
1337
1338	public void stopPresenceUpdatesTo(Contact contact) {
1339		// Canceling a Subscription type=unsubscribed
1340		PresencePacket packet = new PresencePacket();
1341		packet.setAttribute("type", "unsubscribed");
1342		packet.setAttribute("to", contact.getJid());
1343		packet.setAttribute("from", contact.getAccount().getJid());
1344		Log.d(LOGTAG, packet.toString());
1345		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1346	}
1347
1348	public void sendPresenceUpdatesTo(Contact contact) {
1349		// type='subscribed'
1350		PresencePacket packet = new PresencePacket();
1351		packet.setAttribute("type", "subscribed");
1352		packet.setAttribute("to", contact.getJid());
1353		packet.setAttribute("from", contact.getAccount().getJid());
1354		Log.d(LOGTAG, packet.toString());
1355		contact.getAccount().getXmppConnection().sendPresencePacket(packet);
1356	}
1357
1358	public void sendPgpPresence(Account account, String signature) {
1359		PresencePacket packet = new PresencePacket();
1360		packet.setAttribute("from", account.getFullJid());
1361		Element status = new Element("status");
1362		status.setContent("online");
1363		packet.addChild(status);
1364		Element x = new Element("x");
1365		x.setAttribute("xmlns", "jabber:x:signed");
1366		x.setContent(signature);
1367		packet.addChild(x);
1368		account.getXmppConnection().sendPresencePacket(packet);
1369	}
1370
1371	public void updateConversation(Conversation conversation) {
1372		this.databaseBackend.updateConversation(conversation);
1373	}
1374
1375	public Contact findContact(String uuid) {
1376		Contact contact = this.databaseBackend.getContact(uuid);
1377		if (contact != null) {
1378			for (Account account : getAccounts()) {
1379				if (contact.getAccountUuid().equals(account.getUuid())) {
1380					contact.setAccount(account);
1381				}
1382			}
1383		}
1384		return contact;
1385	}
1386
1387	public void removeOnTLSExceptionReceivedListener() {
1388		this.tlsException = null;
1389	}
1390
1391	// TODO dont let thread sleep but schedule wake up
1392	public void reconnectAccount(final Account account, final boolean force) {
1393		new Thread(new Runnable() {
1394
1395			@Override
1396			public void run() {
1397				if (account.getXmppConnection() != null) {
1398					disconnect(account, force);
1399				}
1400				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
1401					if (account.getXmppConnection() == null) {
1402						account.setXmppConnection(createConnection(account));
1403					}
1404					Thread thread = new Thread(account.getXmppConnection());
1405					thread.start();
1406					scheduleWakeupCall((int) (CONNECT_TIMEOUT * 1.2), false);
1407				}
1408			}
1409		}).start();
1410	}
1411
1412	public void updateConversationInGui() {
1413		if (convChangedListener != null) {
1414			convChangedListener.onConversationListChanged();
1415		}
1416	}
1417
1418	public void sendConversationSubject(Conversation conversation,
1419			String subject) {
1420		MessagePacket packet = new MessagePacket();
1421		packet.setType(MessagePacket.TYPE_GROUPCHAT);
1422		packet.setTo(conversation.getContactJid().split("/")[0]);
1423		Element subjectChild = new Element("subject");
1424		subjectChild.setContent(subject);
1425		packet.addChild(subjectChild);
1426		packet.setFrom(conversation.getAccount().getJid());
1427		Account account = conversation.getAccount();
1428		if (account.getStatus() == Account.STATUS_ONLINE) {
1429			account.getXmppConnection().sendMessagePacket(packet);
1430		}
1431	}
1432
1433	public void inviteToConference(Conversation conversation,
1434			List<Contact> contacts) {
1435		for (Contact contact : contacts) {
1436			MessagePacket packet = new MessagePacket();
1437			packet.setTo(conversation.getContactJid().split("/")[0]);
1438			packet.setFrom(conversation.getAccount().getFullJid());
1439			Element x = new Element("x");
1440			x.setAttribute("xmlns", "http://jabber.org/protocol/muc#user");
1441			Element invite = new Element("invite");
1442			invite.setAttribute("to", contact.getJid());
1443			x.addChild(invite);
1444			packet.addChild(x);
1445			Log.d(LOGTAG, packet.toString());
1446			conversation.getAccount().getXmppConnection()
1447					.sendMessagePacket(packet);
1448		}
1449
1450	}
1451
1452	public boolean markMessage(Account account, String recipient, String uuid,
1453			int status) {
1454		boolean marked = false;
1455		for (Conversation conversation : getConversations()) {
1456			if (conversation.getContactJid().equals(recipient)
1457					&& conversation.getAccount().equals(account)) {
1458				for (Message message : conversation.getMessages()) {
1459					if (message.getUuid().equals(uuid)) {
1460						markMessage(message, status);
1461						marked = true;
1462						break;
1463					}
1464				}
1465				break;
1466			}
1467		}
1468		return marked;
1469	}
1470
1471	public void markMessage(Message message, int status) {
1472		message.setStatus(status);
1473		databaseBackend.updateMessage(message);
1474		if (convChangedListener != null) {
1475			convChangedListener.onConversationListChanged();
1476		}
1477	}
1478
1479	public SharedPreferences getPreferences() {
1480		return PreferenceManager
1481				.getDefaultSharedPreferences(getApplicationContext());
1482	}
1483}