XmppConnectionService.java

   1package eu.siacs.conversations.services;
   2
   3import android.annotation.SuppressLint;
   4import android.app.AlarmManager;
   5import android.app.PendingIntent;
   6import android.app.Service;
   7import android.content.Context;
   8import android.content.Intent;
   9import android.content.IntentFilter;
  10import android.content.SharedPreferences;
  11import android.database.ContentObserver;
  12import android.graphics.Bitmap;
  13import android.media.AudioManager;
  14import android.net.ConnectivityManager;
  15import android.net.NetworkInfo;
  16import android.net.Uri;
  17import android.os.Binder;
  18import android.os.Build;
  19import android.os.Bundle;
  20import android.os.FileObserver;
  21import android.os.IBinder;
  22import android.os.Looper;
  23import android.os.PowerManager;
  24import android.os.PowerManager.WakeLock;
  25import android.os.SystemClock;
  26import android.preference.PreferenceManager;
  27import android.provider.ContactsContract;
  28import android.security.KeyChain;
  29import android.security.KeyChainException;
  30import android.util.Log;
  31import android.util.LruCache;
  32import android.util.DisplayMetrics;
  33
  34import net.java.otr4j.OtrException;
  35import net.java.otr4j.session.Session;
  36import net.java.otr4j.session.SessionID;
  37import net.java.otr4j.session.SessionImpl;
  38import net.java.otr4j.session.SessionStatus;
  39
  40import org.bouncycastle.asn1.x500.RDN;
  41import org.bouncycastle.asn1.x500.X500Name;
  42import org.bouncycastle.asn1.x500.style.BCStyle;
  43import org.bouncycastle.asn1.x500.style.IETFUtils;
  44import org.bouncycastle.cert.jcajce.JcaX509CertificateHolder;
  45import org.bouncycastle.jce.PrincipalUtil;
  46import org.bouncycastle.jce.X509Principal;
  47import org.openintents.openpgp.util.OpenPgpApi;
  48import org.openintents.openpgp.util.OpenPgpServiceConnection;
  49
  50import java.math.BigInteger;
  51import java.security.PrivateKey;
  52import java.security.SecureRandom;
  53import java.security.cert.CertificateEncodingException;
  54import java.security.cert.CertificateParsingException;
  55import java.security.cert.X509Certificate;
  56import java.util.ArrayList;
  57import java.util.Arrays;
  58import java.util.Collection;
  59import java.util.Collections;
  60import java.util.Comparator;
  61import java.util.Hashtable;
  62import java.util.Iterator;
  63import java.util.List;
  64import java.util.Locale;
  65import java.util.Map;
  66import java.util.concurrent.CopyOnWriteArrayList;
  67
  68import de.duenndns.ssl.MemorizingTrustManager;
  69import eu.siacs.conversations.Config;
  70import eu.siacs.conversations.R;
  71import eu.siacs.conversations.crypto.PgpEngine;
  72import eu.siacs.conversations.crypto.axolotl.XmppAxolotlMessage;
  73import eu.siacs.conversations.entities.Account;
  74import eu.siacs.conversations.entities.Blockable;
  75import eu.siacs.conversations.entities.Bookmark;
  76import eu.siacs.conversations.entities.Contact;
  77import eu.siacs.conversations.entities.Conversation;
  78import eu.siacs.conversations.entities.Message;
  79import eu.siacs.conversations.entities.MucOptions;
  80import eu.siacs.conversations.entities.MucOptions.OnRenameListener;
  81import eu.siacs.conversations.entities.Presences;
  82import eu.siacs.conversations.entities.Transferable;
  83import eu.siacs.conversations.entities.TransferablePlaceholder;
  84import eu.siacs.conversations.generator.IqGenerator;
  85import eu.siacs.conversations.generator.MessageGenerator;
  86import eu.siacs.conversations.generator.PresenceGenerator;
  87import eu.siacs.conversations.http.HttpConnectionManager;
  88import eu.siacs.conversations.parser.IqParser;
  89import eu.siacs.conversations.parser.MessageParser;
  90import eu.siacs.conversations.parser.PresenceParser;
  91import eu.siacs.conversations.persistance.DatabaseBackend;
  92import eu.siacs.conversations.persistance.FileBackend;
  93import eu.siacs.conversations.ui.UiCallback;
  94import eu.siacs.conversations.utils.CryptoHelper;
  95import eu.siacs.conversations.utils.ExceptionHelper;
  96import eu.siacs.conversations.utils.OnPhoneContactsLoadedListener;
  97import eu.siacs.conversations.utils.PRNGFixes;
  98import eu.siacs.conversations.utils.PhoneHelper;
  99import eu.siacs.conversations.utils.SerialSingleThreadExecutor;
 100import eu.siacs.conversations.utils.Xmlns;
 101import eu.siacs.conversations.xml.Element;
 102import eu.siacs.conversations.xmpp.OnBindListener;
 103import eu.siacs.conversations.xmpp.OnContactStatusChanged;
 104import eu.siacs.conversations.xmpp.OnIqPacketReceived;
 105import eu.siacs.conversations.xmpp.OnKeyStatusUpdated;
 106import eu.siacs.conversations.xmpp.OnMessageAcknowledged;
 107import eu.siacs.conversations.xmpp.OnMessagePacketReceived;
 108import eu.siacs.conversations.xmpp.OnPresencePacketReceived;
 109import eu.siacs.conversations.xmpp.OnStatusChanged;
 110import eu.siacs.conversations.xmpp.OnUpdateBlocklist;
 111import eu.siacs.conversations.xmpp.XmppConnection;
 112import eu.siacs.conversations.xmpp.chatstate.ChatState;
 113import eu.siacs.conversations.xmpp.forms.Data;
 114import eu.siacs.conversations.xmpp.forms.Field;
 115import eu.siacs.conversations.xmpp.jid.InvalidJidException;
 116import eu.siacs.conversations.xmpp.jid.Jid;
 117import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
 118import eu.siacs.conversations.xmpp.jingle.OnJinglePacketReceived;
 119import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
 120import eu.siacs.conversations.xmpp.pep.Avatar;
 121import eu.siacs.conversations.xmpp.stanzas.IqPacket;
 122import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
 123import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
 124import me.leolin.shortcutbadger.ShortcutBadger;
 125
 126public class XmppConnectionService extends Service implements OnPhoneContactsLoadedListener {
 127
 128	public static final String ACTION_CLEAR_NOTIFICATION = "clear_notification";
 129	public static final String ACTION_DISABLE_FOREGROUND = "disable_foreground";
 130	private static final String ACTION_MERGE_PHONE_CONTACTS = "merge_phone_contacts";
 131	public static final String ACTION_TRY_AGAIN = "try_again";
 132	public static final String ACTION_DISABLE_ACCOUNT = "disable_account";
 133	private ContentObserver contactObserver = new ContentObserver(null) {
 134		@Override
 135		public void onChange(boolean selfChange) {
 136			super.onChange(selfChange);
 137			Intent intent = new Intent(getApplicationContext(),
 138					XmppConnectionService.class);
 139			intent.setAction(ACTION_MERGE_PHONE_CONTACTS);
 140			startService(intent);
 141		}
 142	};
 143
 144	private final SerialSingleThreadExecutor mFileAddingExecutor = new SerialSingleThreadExecutor();
 145	private final SerialSingleThreadExecutor mDatabaseExecutor = new SerialSingleThreadExecutor();
 146
 147	private final IBinder mBinder = new XmppConnectionBinder();
 148	private final List<Conversation> conversations = new CopyOnWriteArrayList<>();
 149	private final FileObserver fileObserver = new FileObserver(
 150			FileBackend.getConversationsImageDirectory()) {
 151
 152		@Override
 153		public void onEvent(int event, String path) {
 154			if (event == FileObserver.DELETE) {
 155				markFileDeleted(path.split("\\.")[0]);
 156			}
 157		}
 158	};
 159	private final OnJinglePacketReceived jingleListener = new OnJinglePacketReceived() {
 160
 161		@Override
 162		public void onJinglePacketReceived(Account account, JinglePacket packet) {
 163			mJingleConnectionManager.deliverPacket(account, packet);
 164		}
 165	};
 166	private final OnBindListener mOnBindListener = new OnBindListener() {
 167
 168		@Override
 169		public void onBind(final Account account) {
 170			account.getRoster().clearPresences();
 171			fetchRosterFromServer(account);
 172			fetchBookmarks(account);
 173			sendPresence(account);
 174			connectMultiModeConversations(account);
 175			mMessageArchiveService.executePendingQueries(account);
 176			mJingleConnectionManager.cancelInTransmission();
 177			syncDirtyContacts(account);
 178			account.getAxolotlService().publishBundlesIfNeeded(true);
 179		}
 180	};
 181	private final OnMessageAcknowledged mOnMessageAcknowledgedListener = new OnMessageAcknowledged() {
 182
 183		@Override
 184		public void onMessageAcknowledged(Account account, String uuid) {
 185			for (final Conversation conversation : getConversations()) {
 186				if (conversation.getAccount() == account) {
 187					Message message = conversation.findUnsentMessageWithUuid(uuid);
 188					if (message != null) {
 189						markMessage(message, Message.STATUS_SEND);
 190						if (conversation.setLastMessageTransmitted(System.currentTimeMillis())) {
 191							databaseBackend.updateConversation(conversation);
 192						}
 193					}
 194				}
 195			}
 196		}
 197	};
 198	private final IqGenerator mIqGenerator = new IqGenerator(this);
 199	public DatabaseBackend databaseBackend;
 200	public OnContactStatusChanged onContactStatusChanged = new OnContactStatusChanged() {
 201
 202		@Override
 203		public void onContactStatusChanged(Contact contact, boolean online) {
 204			Conversation conversation = find(getConversations(), contact);
 205			if (conversation != null) {
 206				if (online) {
 207					conversation.endOtrIfNeeded();
 208					if (contact.getPresences().size() == 1) {
 209						sendUnsentMessages(conversation);
 210					}
 211				} else {
 212					if (contact.getPresences().size() >= 1) {
 213						if (conversation.hasValidOtrSession()) {
 214							String otrResource = conversation.getOtrSession().getSessionID().getUserID();
 215							if (!(Arrays.asList(contact.getPresences().asStringArray()).contains(otrResource))) {
 216								conversation.endOtrIfNeeded();
 217							}
 218						}
 219					} else {
 220						conversation.endOtrIfNeeded();
 221					}
 222				}
 223			}
 224		}
 225	};
 226	private FileBackend fileBackend = new FileBackend(this);
 227	private MemorizingTrustManager mMemorizingTrustManager;
 228	private NotificationService mNotificationService = new NotificationService(
 229			this);
 230	private OnMessagePacketReceived mMessageParser = new MessageParser(this);
 231	private OnPresencePacketReceived mPresenceParser = new PresenceParser(this);
 232	private IqParser mIqParser = new IqParser(this);
 233	private OnIqPacketReceived mDefaultIqHandler = new OnIqPacketReceived() {
 234		@Override
 235		public void onIqPacketReceived(Account account, IqPacket packet) {
 236			if (packet.getType() != IqPacket.TYPE.RESULT) {
 237				Element error = packet.findChild("error");
 238				String text = error != null ? error.findChildContent("text") : null;
 239				if (text != null) {
 240					Log.d(Config.LOGTAG,account.getJid().toBareJid()+": received iq error - "+text);
 241				}
 242			}
 243		}
 244	};
 245	private MessageGenerator mMessageGenerator = new MessageGenerator(this);
 246	private PresenceGenerator mPresenceGenerator = new PresenceGenerator(this);
 247	private List<Account> accounts;
 248	private JingleConnectionManager mJingleConnectionManager = new JingleConnectionManager(
 249			this);
 250	private HttpConnectionManager mHttpConnectionManager = new HttpConnectionManager(
 251			this);
 252	private AvatarService mAvatarService = new AvatarService(this);
 253	private final List<String> mInProgressAvatarFetches = new ArrayList<>();
 254	private MessageArchiveService mMessageArchiveService = new MessageArchiveService(this);
 255	private OnConversationUpdate mOnConversationUpdate = null;
 256	private int convChangedListenerCount = 0;
 257	private OnShowErrorToast mOnShowErrorToast = null;
 258	private int showErrorToastListenerCount = 0;
 259	private int unreadCount = -1;
 260	private OnAccountUpdate mOnAccountUpdate = null;
 261	private OnCaptchaRequested mOnCaptchaRequested = null;
 262	private OnStatusChanged statusListener = new OnStatusChanged() {
 263
 264		@Override
 265		public void onStatusChanged(Account account) {
 266			XmppConnection connection = account.getXmppConnection();
 267			if (mOnAccountUpdate != null) {
 268				mOnAccountUpdate.onAccountUpdate();
 269			}
 270			if (account.getStatus() == Account.State.ONLINE) {
 271				if (connection != null && connection.getFeatures().csi()) {
 272					if (checkListeners()) {
 273						Log.d(Config.LOGTAG, account.getJid().toBareJid()+ " sending csi//inactive");
 274						connection.sendInactive();
 275					} else {
 276						Log.d(Config.LOGTAG, account.getJid().toBareJid()+ " sending csi//active");
 277						connection.sendActive();
 278					}
 279				}
 280				List<Conversation> conversations = getConversations();
 281				for (Conversation conversation : conversations) {
 282					if (conversation.getAccount() == account) {
 283						conversation.startOtrIfNeeded();
 284						sendUnsentMessages(conversation);
 285					}
 286				}
 287				for (Conversation conversation : account.pendingConferenceLeaves) {
 288					leaveMuc(conversation);
 289				}
 290				account.pendingConferenceLeaves.clear();
 291				for (Conversation conversation : account.pendingConferenceJoins) {
 292					joinMuc(conversation);
 293				}
 294				account.pendingConferenceJoins.clear();
 295				scheduleWakeUpCall(Config.PING_MAX_INTERVAL, account.getUuid().hashCode());
 296			} else if (account.getStatus() == Account.State.OFFLINE) {
 297				resetSendingToWaiting(account);
 298				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 299					int timeToReconnect = mRandom.nextInt(20) + 10;
 300					scheduleWakeUpCall(timeToReconnect,account.getUuid().hashCode());
 301				}
 302			} else if (account.getStatus() == Account.State.REGISTRATION_SUCCESSFUL) {
 303				databaseBackend.updateAccount(account);
 304				reconnectAccount(account, true, false);
 305			} else if ((account.getStatus() != Account.State.CONNECTING)
 306					&& (account.getStatus() != Account.State.NO_INTERNET)) {
 307				if (connection != null) {
 308					int next = connection.getTimeToNextAttempt();
 309					Log.d(Config.LOGTAG, account.getJid().toBareJid()
 310							+ ": error connecting account. try again in "
 311							+ next + "s for the "
 312							+ (connection.getAttempt() + 1) + " time");
 313					scheduleWakeUpCall(next,account.getUuid().hashCode());
 314				}
 315					}
 316			getNotificationService().updateErrorNotification();
 317		}
 318	};
 319	private int accountChangedListenerCount = 0;
 320	private int captchaRequestedListenerCount = 0;
 321	private OnRosterUpdate mOnRosterUpdate = null;
 322	private OnUpdateBlocklist mOnUpdateBlocklist = null;
 323	private int updateBlocklistListenerCount = 0;
 324	private int rosterChangedListenerCount = 0;
 325	private OnMucRosterUpdate mOnMucRosterUpdate = null;
 326	private int mucRosterChangedListenerCount = 0;
 327	private OnKeyStatusUpdated mOnKeyStatusUpdated = null;
 328	private int keyStatusUpdatedListenerCount = 0;
 329	private SecureRandom mRandom;
 330	private OpenPgpServiceConnection pgpServiceConnection;
 331	private PgpEngine mPgpEngine = null;
 332	private WakeLock wakeLock;
 333	private PowerManager pm;
 334	private LruCache<String, Bitmap> mBitmapCache;
 335	private Thread mPhoneContactMergerThread;
 336	private EventReceiver mEventReceiver = new EventReceiver();
 337
 338	private boolean mRestoredFromDatabase = false;
 339	public boolean areMessagesInitialized() {
 340		return this.mRestoredFromDatabase;
 341	}
 342
 343	public PgpEngine getPgpEngine() {
 344		if (pgpServiceConnection.isBound()) {
 345			if (this.mPgpEngine == null) {
 346				this.mPgpEngine = new PgpEngine(new OpenPgpApi(
 347							getApplicationContext(),
 348							pgpServiceConnection.getService()), this);
 349			}
 350			return mPgpEngine;
 351		} else {
 352			return null;
 353		}
 354
 355	}
 356
 357	public FileBackend getFileBackend() {
 358		return this.fileBackend;
 359	}
 360
 361	public AvatarService getAvatarService() {
 362		return this.mAvatarService;
 363	}
 364
 365	public void attachLocationToConversation(final Conversation conversation,
 366											 final Uri uri,
 367											 final UiCallback<Message> callback) {
 368		int encryption = conversation.getNextEncryption();
 369		if (encryption == Message.ENCRYPTION_PGP) {
 370			encryption = Message.ENCRYPTION_DECRYPTED;
 371		}
 372		Message message = new Message(conversation,uri.toString(),encryption);
 373		if (conversation.getNextCounterpart() != null) {
 374			message.setCounterpart(conversation.getNextCounterpart());
 375		}
 376		if (encryption == Message.ENCRYPTION_DECRYPTED) {
 377			getPgpEngine().encrypt(message, callback);
 378		} else {
 379			callback.success(message);
 380		}
 381	}
 382
 383	public void attachFileToConversation(final Conversation conversation,
 384			final Uri uri,
 385			final UiCallback<Message> callback) {
 386		final Message message;
 387		if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 388			message = new Message(conversation, "", Message.ENCRYPTION_DECRYPTED);
 389		} else {
 390			message = new Message(conversation, "", conversation.getNextEncryption());
 391		}
 392		message.setCounterpart(conversation.getNextCounterpart());
 393		message.setType(Message.TYPE_FILE);
 394		String path = getFileBackend().getOriginalPath(uri);
 395		if (path!=null) {
 396			message.setRelativeFilePath(path);
 397			getFileBackend().updateFileParams(message);
 398			if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 399				getPgpEngine().encrypt(message, callback);
 400			} else {
 401				callback.success(message);
 402			}
 403		} else {
 404			mFileAddingExecutor.execute(new Runnable() {
 405				@Override
 406				public void run() {
 407					try {
 408						getFileBackend().copyFileToPrivateStorage(message, uri);
 409						getFileBackend().updateFileParams(message);
 410						if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 411							getPgpEngine().encrypt(message, callback);
 412						} else {
 413							callback.success(message);
 414						}
 415					} catch (FileBackend.FileCopyException e) {
 416						callback.error(e.getResId(), message);
 417					}
 418				}
 419			});
 420		}
 421	}
 422
 423	public void attachImageToConversation(final Conversation conversation, final Uri uri, final UiCallback<Message> callback) {
 424		if (getFileBackend().useImageAsIs(uri)) {
 425			Log.d(Config.LOGTAG,"using image as is");
 426			attachFileToConversation(conversation, uri, callback);
 427			return;
 428		}
 429		final Message message;
 430		if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 431			message = new Message(conversation, "", Message.ENCRYPTION_DECRYPTED);
 432		} else {
 433			message = new Message(conversation, "",conversation.getNextEncryption());
 434		}
 435		message.setCounterpart(conversation.getNextCounterpart());
 436		message.setType(Message.TYPE_IMAGE);
 437		mFileAddingExecutor.execute(new Runnable() {
 438
 439			@Override
 440			public void run() {
 441				try {
 442					getFileBackend().copyImageToPrivateStorage(message, uri);
 443					if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 444						getPgpEngine().encrypt(message, callback);
 445					} else {
 446						callback.success(message);
 447					}
 448				} catch (final FileBackend.FileCopyException e) {
 449					callback.error(e.getResId(), message);
 450				}
 451			}
 452		});
 453	}
 454
 455	public Conversation find(Bookmark bookmark) {
 456		return find(bookmark.getAccount(), bookmark.getJid());
 457	}
 458
 459	public Conversation find(final Account account, final Jid jid) {
 460		return find(getConversations(), account, jid);
 461	}
 462
 463	@Override
 464	public int onStartCommand(Intent intent, int flags, int startId) {
 465		final String action = intent == null ? null : intent.getAction();
 466		boolean interactive = false;
 467		if (action != null) {
 468			Log.d(Config.LOGTAG,"action: "+action);
 469			switch (action) {
 470				case ConnectivityManager.CONNECTIVITY_ACTION:
 471					if (hasInternetConnection() && Config.RESET_ATTEMPT_COUNT_ON_NETWORK_CHANGE) {
 472						resetAllAttemptCounts(true);
 473					}
 474					break;
 475				case ACTION_MERGE_PHONE_CONTACTS:
 476					if (mRestoredFromDatabase) {
 477						PhoneHelper.loadPhoneContacts(getApplicationContext(),
 478								new CopyOnWriteArrayList<Bundle>(),
 479								this);
 480					}
 481					return START_STICKY;
 482				case Intent.ACTION_SHUTDOWN:
 483					logoutAndSave();
 484					return START_NOT_STICKY;
 485				case ACTION_CLEAR_NOTIFICATION:
 486					mNotificationService.clear();
 487					break;
 488				case ACTION_DISABLE_FOREGROUND:
 489					getPreferences().edit().putBoolean("keep_foreground_service",false).commit();
 490					toggleForegroundService();
 491					break;
 492				case ACTION_TRY_AGAIN:
 493					resetAllAttemptCounts(false);
 494					interactive = true;
 495					break;
 496				case ACTION_DISABLE_ACCOUNT:
 497					try {
 498						String jid = intent.getStringExtra("account");
 499						Account account = jid == null ? null : findAccountByJid(Jid.fromString(jid));
 500						if (account != null) {
 501							account.setOption(Account.OPTION_DISABLED,true);
 502							updateAccount(account);
 503						}
 504					} catch (final InvalidJidException ignored) {
 505						break;
 506					}
 507					break;
 508				case AudioManager.RINGER_MODE_CHANGED_ACTION:
 509					if (xaOnSilentMode()) {
 510						refreshAllPresences();
 511					}
 512					break;
 513				case Intent.ACTION_SCREEN_OFF:
 514				case Intent.ACTION_SCREEN_ON:
 515					if (awayWhenScreenOff()) {
 516						refreshAllPresences();
 517					}
 518					break;
 519			}
 520		}
 521		this.wakeLock.acquire();
 522
 523		for (Account account : accounts) {
 524			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 525				if (!hasInternetConnection()) {
 526					account.setStatus(Account.State.NO_INTERNET);
 527					if (statusListener != null) {
 528						statusListener.onStatusChanged(account);
 529					}
 530				} else {
 531					if (account.getStatus() == Account.State.NO_INTERNET) {
 532						account.setStatus(Account.State.OFFLINE);
 533						if (statusListener != null) {
 534							statusListener.onStatusChanged(account);
 535						}
 536					}
 537					if (account.getStatus() == Account.State.ONLINE) {
 538						long lastReceived = account.getXmppConnection().getLastPacketReceived();
 539						long lastSent = account.getXmppConnection().getLastPingSent();
 540						long pingInterval = "ui".equals(action) ? Config.PING_MIN_INTERVAL * 1000 : Config.PING_MAX_INTERVAL * 1000;
 541						long msToNextPing = (Math.max(lastReceived,lastSent) + pingInterval) - SystemClock.elapsedRealtime();
 542						long pingTimeoutIn = (lastSent + Config.PING_TIMEOUT * 1000) - SystemClock.elapsedRealtime();
 543						if (lastSent > lastReceived) {
 544							if (pingTimeoutIn < 0) {
 545								Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": ping timeout");
 546								this.reconnectAccount(account, true, interactive);
 547							} else {
 548								int secs = (int) (pingTimeoutIn / 1000);
 549								this.scheduleWakeUpCall(secs,account.getUuid().hashCode());
 550							}
 551						} else if (msToNextPing <= 0) {
 552							account.getXmppConnection().sendPing();
 553							Log.d(Config.LOGTAG, account.getJid().toBareJid()+" send ping");
 554							this.scheduleWakeUpCall(Config.PING_TIMEOUT,account.getUuid().hashCode());
 555						} else {
 556							this.scheduleWakeUpCall((int) (msToNextPing / 1000), account.getUuid().hashCode());
 557						}
 558					} else if (account.getStatus() == Account.State.OFFLINE) {
 559						reconnectAccount(account,true, interactive);
 560					} else if (account.getStatus() == Account.State.CONNECTING) {
 561						long timeout = Config.CONNECT_TIMEOUT - ((SystemClock.elapsedRealtime() - account.getXmppConnection().getLastConnect()) / 1000);
 562						if (timeout < 0) {
 563							Log.d(Config.LOGTAG, account.getJid() + ": time out during connect reconnecting");
 564							reconnectAccount(account, true, interactive);
 565						} else {
 566							scheduleWakeUpCall((int) timeout,account.getUuid().hashCode());
 567						}
 568					} else {
 569						if (account.getXmppConnection().getTimeToNextAttempt() <= 0) {
 570							reconnectAccount(account, true, interactive);
 571						}
 572					}
 573
 574				}
 575				if (mOnAccountUpdate != null) {
 576					mOnAccountUpdate.onAccountUpdate();
 577				}
 578			}
 579		}
 580		if (wakeLock.isHeld()) {
 581			try {
 582				wakeLock.release();
 583			} catch (final RuntimeException ignored) {
 584			}
 585		}
 586		return START_STICKY;
 587	}
 588
 589	private boolean xaOnSilentMode() {
 590		return getPreferences().getBoolean("xa_on_silent_mode", false);
 591	}
 592
 593	private boolean awayWhenScreenOff() {
 594		return getPreferences().getBoolean("away_when_screen_off", false);
 595	}
 596
 597	private int getTargetPresence() {
 598		if (xaOnSilentMode() && isPhoneSilenced()) {
 599			return Presences.XA;
 600		} else if (awayWhenScreenOff() && !isInteractive()) {
 601			return Presences.AWAY;
 602		} else {
 603			return Presences.ONLINE;
 604		}
 605	}
 606
 607	@SuppressLint("NewApi")
 608	@SuppressWarnings("deprecation")
 609	public boolean isInteractive() {
 610		final PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 611
 612		final boolean isScreenOn;
 613		if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
 614			isScreenOn = pm.isScreenOn();
 615		} else {
 616			isScreenOn = pm.isInteractive();
 617		}
 618		return isScreenOn;
 619	}
 620
 621	private boolean isPhoneSilenced() {
 622		AudioManager audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
 623		return audioManager.getRingerMode() == AudioManager.RINGER_MODE_SILENT;
 624	}
 625
 626	private void resetAllAttemptCounts(boolean reallyAll) {
 627		Log.d(Config.LOGTAG,"resetting all attepmt counts");
 628		for(Account account : accounts) {
 629			if (account.hasErrorStatus() || reallyAll) {
 630				final XmppConnection connection = account.getXmppConnection();
 631				if (connection != null) {
 632					connection.resetAttemptCount();
 633				}
 634			}
 635		}
 636	}
 637
 638	public boolean hasInternetConnection() {
 639		ConnectivityManager cm = (ConnectivityManager) getApplicationContext()
 640			.getSystemService(Context.CONNECTIVITY_SERVICE);
 641		NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
 642		return activeNetwork != null && activeNetwork.isConnected();
 643	}
 644
 645	@SuppressLint("TrulyRandom")
 646	@Override
 647	public void onCreate() {
 648		ExceptionHelper.init(getApplicationContext());
 649		PRNGFixes.apply();
 650		this.mRandom = new SecureRandom();
 651		updateMemorizingTrustmanager();
 652		final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024);
 653		final int cacheSize = maxMemory / 8;
 654		this.mBitmapCache = new LruCache<String, Bitmap>(cacheSize) {
 655			@Override
 656			protected int sizeOf(final String key, final Bitmap bitmap) {
 657				return bitmap.getByteCount() / 1024;
 658			}
 659		};
 660
 661		this.databaseBackend = DatabaseBackend.getInstance(getApplicationContext());
 662		this.accounts = databaseBackend.getAccounts();
 663
 664		restoreFromDatabase();
 665
 666		getContentResolver().registerContentObserver(ContactsContract.Contacts.CONTENT_URI, true, contactObserver);
 667		this.fileObserver.startWatching();
 668
 669		this.pgpServiceConnection = new OpenPgpServiceConnection(getApplicationContext(), "org.sufficientlysecure.keychain");
 670		this.pgpServiceConnection.bindToService();
 671
 672		this.pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 673		this.wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,"XmppConnectionService");
 674		toggleForegroundService();
 675		updateUnreadCountBadge();
 676		toggleScreenEventReceiver();
 677	}
 678
 679	@Override
 680	public void onDestroy() {
 681		try {
 682			unregisterReceiver(this.mEventReceiver);
 683		} catch (IllegalArgumentException e) {
 684			//ignored
 685		}
 686		super.onDestroy();
 687	}
 688
 689	public void toggleScreenEventReceiver() {
 690		if (awayWhenScreenOff()) {
 691			final IntentFilter filter = new IntentFilter(Intent.ACTION_SCREEN_ON);
 692			filter.addAction(Intent.ACTION_SCREEN_OFF);
 693			registerReceiver(this.mEventReceiver, filter);
 694		} else {
 695			try {
 696				unregisterReceiver(this.mEventReceiver);
 697			} catch (IllegalArgumentException e) {
 698				//ignored
 699			}
 700		}
 701	}
 702
 703	public void toggleForegroundService() {
 704		if (getPreferences().getBoolean("keep_foreground_service", false)) {
 705			startForeground(NotificationService.FOREGROUND_NOTIFICATION_ID, this.mNotificationService.createForegroundNotification());
 706		} else {
 707			stopForeground(true);
 708		}
 709	}
 710
 711	@Override
 712	public void onTaskRemoved(final Intent rootIntent) {
 713		super.onTaskRemoved(rootIntent);
 714		if (!getPreferences().getBoolean("keep_foreground_service",false)) {
 715			this.logoutAndSave();
 716		}
 717	}
 718
 719	private void logoutAndSave() {
 720		for (final Account account : accounts) {
 721			databaseBackend.writeRoster(account.getRoster());
 722			if (account.getXmppConnection() != null) {
 723				disconnect(account, false);
 724			}
 725		}
 726		Context context = getApplicationContext();
 727		AlarmManager alarmManager = (AlarmManager) context
 728				.getSystemService(Context.ALARM_SERVICE);
 729		Intent intent = new Intent(context, EventReceiver.class);
 730		alarmManager.cancel(PendingIntent.getBroadcast(context, 0, intent, 0));
 731		Log.d(Config.LOGTAG, "good bye");
 732		stopSelf();
 733	}
 734
 735	protected void scheduleWakeUpCall(int seconds, int requestCode) {
 736		final long timeToWake = SystemClock.elapsedRealtime() + (seconds < 0 ? 1 : seconds + 1) * 1000;
 737
 738		Context context = getApplicationContext();
 739		AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
 740
 741		Intent intent = new Intent(context, EventReceiver.class);
 742		intent.setAction("ping");
 743		PendingIntent alarmIntent = PendingIntent.getBroadcast(context, requestCode, intent, 0);
 744		alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake, alarmIntent);
 745	}
 746
 747	public XmppConnection createConnection(final Account account) {
 748		final SharedPreferences sharedPref = getPreferences();
 749		account.setResource(sharedPref.getString("resource", "mobile")
 750				.toLowerCase(Locale.getDefault()));
 751		final XmppConnection connection = new XmppConnection(account, this);
 752		connection.setOnMessagePacketReceivedListener(this.mMessageParser);
 753		connection.setOnStatusChangedListener(this.statusListener);
 754		connection.setOnPresencePacketReceivedListener(this.mPresenceParser);
 755		connection.setOnUnregisteredIqPacketReceivedListener(this.mIqParser);
 756		connection.setOnJinglePacketReceivedListener(this.jingleListener);
 757		connection.setOnBindListener(this.mOnBindListener);
 758		connection.setOnMessageAcknowledgeListener(this.mOnMessageAcknowledgedListener);
 759		connection.addOnAdvancedStreamFeaturesAvailableListener(this.mMessageArchiveService);
 760		return connection;
 761	}
 762
 763	public void sendChatState(Conversation conversation) {
 764		if (sendChatStates()) {
 765			MessagePacket packet = mMessageGenerator.generateChatState(conversation);
 766			sendMessagePacket(conversation.getAccount(), packet);
 767		}
 768	}
 769
 770	private void sendFileMessage(final Message message, final boolean delay) {
 771		Log.d(Config.LOGTAG, "send file message");
 772		final Account account = message.getConversation().getAccount();
 773		final XmppConnection connection = account.getXmppConnection();
 774		if (connection != null && connection.getFeatures().httpUpload()) {
 775			mHttpConnectionManager.createNewUploadConnection(message, delay);
 776		} else {
 777			mJingleConnectionManager.createNewConnection(message);
 778		}
 779	}
 780
 781	public void sendMessage(final Message message) {
 782		sendMessage(message, false, false);
 783	}
 784
 785	private void sendMessage(final Message message, final boolean resend, final boolean delay) {
 786		final Account account = message.getConversation().getAccount();
 787		final Conversation conversation = message.getConversation();
 788		account.deactivateGracePeriod();
 789		MessagePacket packet = null;
 790		boolean saveInDb = true;
 791		message.setStatus(Message.STATUS_WAITING);
 792
 793		if (!resend && message.getEncryption() != Message.ENCRYPTION_OTR) {
 794			message.getConversation().endOtrIfNeeded();
 795			message.getConversation().findUnsentMessagesWithEncryption(Message.ENCRYPTION_OTR,
 796					new Conversation.OnMessageFound() {
 797				@Override
 798				public void onMessageFound(Message message) {
 799					markMessage(message,Message.STATUS_SEND_FAILED);
 800				}
 801			});
 802		}
 803
 804		if (account.isOnlineAndConnected()) {
 805			switch (message.getEncryption()) {
 806				case Message.ENCRYPTION_NONE:
 807					if (message.needsUploading()) {
 808						if (account.httpUploadAvailable() || message.fixCounterpart()) {
 809							this.sendFileMessage(message,delay);
 810						} else {
 811							break;
 812						}
 813					} else {
 814						packet = mMessageGenerator.generateChat(message);
 815					}
 816					break;
 817				case Message.ENCRYPTION_PGP:
 818				case Message.ENCRYPTION_DECRYPTED:
 819					if (message.needsUploading()) {
 820						if (account.httpUploadAvailable() || message.fixCounterpart()) {
 821							this.sendFileMessage(message,delay);
 822						} else {
 823							break;
 824						}
 825					} else {
 826						packet = mMessageGenerator.generatePgpChat(message);
 827					}
 828					break;
 829				case Message.ENCRYPTION_OTR:
 830					SessionImpl otrSession = conversation.getOtrSession();
 831					if (otrSession != null && otrSession.getSessionStatus() == SessionStatus.ENCRYPTED) {
 832						try {
 833							message.setCounterpart(Jid.fromSessionID(otrSession.getSessionID()));
 834						} catch (InvalidJidException e) {
 835							break;
 836						}
 837						if (message.needsUploading()) {
 838							mJingleConnectionManager.createNewConnection(message);
 839						} else {
 840							packet = mMessageGenerator.generateOtrChat(message);
 841						}
 842					} else if (otrSession == null) {
 843						if (message.fixCounterpart()) {
 844							conversation.startOtrSession(message.getCounterpart().getResourcepart(), true);
 845						} else {
 846							break;
 847						}
 848					}
 849					break;
 850				case Message.ENCRYPTION_AXOLOTL:
 851					message.setAxolotlFingerprint(account.getAxolotlService().getOwnFingerprint());
 852					if (message.needsUploading()) {
 853						if (account.httpUploadAvailable() || message.fixCounterpart()) {
 854							this.sendFileMessage(message,delay);
 855						} else {
 856							break;
 857						}
 858					} else {
 859						XmppAxolotlMessage axolotlMessage = account.getAxolotlService().fetchAxolotlMessageFromCache(message);
 860						if (axolotlMessage == null) {
 861							account.getAxolotlService().preparePayloadMessage(message, delay);
 862						} else {
 863							packet = mMessageGenerator.generateAxolotlChat(message, axolotlMessage);
 864						}
 865					}
 866					break;
 867
 868			}
 869			if (packet != null) {
 870				if (account.getXmppConnection().getFeatures().sm() || conversation.getMode() == Conversation.MODE_MULTI) {
 871					message.setStatus(Message.STATUS_UNSEND);
 872				} else {
 873					message.setStatus(Message.STATUS_SEND);
 874				}
 875			}
 876		} else {
 877			switch(message.getEncryption()) {
 878				case Message.ENCRYPTION_DECRYPTED:
 879					if (!message.needsUploading()) {
 880						String pgpBody = message.getEncryptedBody();
 881						String decryptedBody = message.getBody();
 882						message.setBody(pgpBody);
 883						message.setEncryption(Message.ENCRYPTION_PGP);
 884						databaseBackend.createMessage(message);
 885						saveInDb = false;
 886						message.setBody(decryptedBody);
 887						message.setEncryption(Message.ENCRYPTION_DECRYPTED);
 888					}
 889					break;
 890				case Message.ENCRYPTION_OTR:
 891					if (!conversation.hasValidOtrSession() && message.getCounterpart() != null) {
 892						conversation.startOtrSession(message.getCounterpart().getResourcepart(), false);
 893					}
 894					break;
 895				case Message.ENCRYPTION_AXOLOTL:
 896					message.setAxolotlFingerprint(account.getAxolotlService().getOwnFingerprint());
 897					break;
 898			}
 899		}
 900
 901		if (resend) {
 902			if (packet != null) {
 903				if (account.getXmppConnection().getFeatures().sm() || conversation.getMode() == Conversation.MODE_MULTI) {
 904					markMessage(message,Message.STATUS_UNSEND);
 905				} else {
 906					markMessage(message,Message.STATUS_SEND);
 907				}
 908			}
 909		} else {
 910			conversation.add(message);
 911			if (saveInDb && (message.getEncryption() == Message.ENCRYPTION_NONE || saveEncryptedMessages())) {
 912				databaseBackend.createMessage(message);
 913			}
 914			updateConversationUi();
 915		}
 916		if (packet != null) {
 917			if (delay) {
 918				mMessageGenerator.addDelay(packet,message.getTimeSent());
 919			}
 920			if (conversation.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
 921				if (this.sendChatStates()) {
 922					packet.addChild(ChatState.toElement(conversation.getOutgoingChatState()));
 923				}
 924			}
 925			sendMessagePacket(account, packet);
 926		}
 927	}
 928
 929	private void sendUnsentMessages(final Conversation conversation) {
 930		conversation.findWaitingMessages(new Conversation.OnMessageFound() {
 931
 932			@Override
 933			public void onMessageFound(Message message) {
 934				resendMessage(message, true);
 935			}
 936		});
 937	}
 938
 939	public void resendMessage(final Message message, final boolean delay) {
 940		sendMessage(message, true, delay);
 941	}
 942
 943	public void fetchRosterFromServer(final Account account) {
 944		final IqPacket iqPacket = new IqPacket(IqPacket.TYPE.GET);
 945		if (!"".equals(account.getRosterVersion())) {
 946			Log.d(Config.LOGTAG, account.getJid().toBareJid()
 947					+ ": fetching roster version " + account.getRosterVersion());
 948		} else {
 949			Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": fetching roster");
 950		}
 951		iqPacket.query(Xmlns.ROSTER).setAttribute("ver", account.getRosterVersion());
 952		sendIqPacket(account, iqPacket, mIqParser);
 953	}
 954
 955	public void fetchBookmarks(final Account account) {
 956		final IqPacket iqPacket = new IqPacket(IqPacket.TYPE.GET);
 957		final Element query = iqPacket.query("jabber:iq:private");
 958		query.addChild("storage", "storage:bookmarks");
 959		final OnIqPacketReceived callback = new OnIqPacketReceived() {
 960
 961			@Override
 962			public void onIqPacketReceived(final Account account, final IqPacket packet) {
 963				if (packet.getType() == IqPacket.TYPE.RESULT) {
 964					final Element query = packet.query();
 965					final List<Bookmark> bookmarks = new CopyOnWriteArrayList<>();
 966					final Element storage = query.findChild("storage", "storage:bookmarks");
 967					if (storage != null) {
 968						for (final Element item : storage.getChildren()) {
 969							if (item.getName().equals("conference")) {
 970								final Bookmark bookmark = Bookmark.parse(item, account);
 971								bookmarks.add(bookmark);
 972								Conversation conversation = find(bookmark);
 973								if (conversation != null) {
 974									conversation.setBookmark(bookmark);
 975								} else if (bookmark.autojoin() && bookmark.getJid() != null) {
 976									conversation = findOrCreateConversation(
 977											account, bookmark.getJid(), true);
 978									conversation.setBookmark(bookmark);
 979									joinMuc(conversation);
 980								}
 981							}
 982						}
 983					}
 984					account.setBookmarks(bookmarks);
 985				} else {
 986					Log.d(Config.LOGTAG,account.getJid().toBareJid()+": could not fetch bookmarks");
 987				}
 988			}
 989		};
 990		sendIqPacket(account, iqPacket, callback);
 991	}
 992
 993	public void pushBookmarks(Account account) {
 994		IqPacket iqPacket = new IqPacket(IqPacket.TYPE.SET);
 995		Element query = iqPacket.query("jabber:iq:private");
 996		Element storage = query.addChild("storage", "storage:bookmarks");
 997		for (Bookmark bookmark : account.getBookmarks()) {
 998			storage.addChild(bookmark);
 999		}
1000		sendIqPacket(account, iqPacket, mDefaultIqHandler);
1001	}
1002
1003	public void onPhoneContactsLoaded(final List<Bundle> phoneContacts) {
1004		if (mPhoneContactMergerThread != null) {
1005			mPhoneContactMergerThread.interrupt();
1006		}
1007		mPhoneContactMergerThread = new Thread(new Runnable() {
1008			@Override
1009			public void run() {
1010				Log.d(Config.LOGTAG,"start merging phone contacts with roster");
1011				for (Account account : accounts) {
1012					List<Contact> withSystemAccounts = account.getRoster().getWithSystemAccounts();
1013					for (Bundle phoneContact : phoneContacts) {
1014						if (Thread.interrupted()) {
1015							Log.d(Config.LOGTAG,"interrupted merging phone contacts");
1016							return;
1017						}
1018						Jid jid;
1019						try {
1020							jid = Jid.fromString(phoneContact.getString("jid"));
1021						} catch (final InvalidJidException e) {
1022							continue;
1023						}
1024						final Contact contact = account.getRoster().getContact(jid);
1025						String systemAccount = phoneContact.getInt("phoneid")
1026							+ "#"
1027							+ phoneContact.getString("lookup");
1028						contact.setSystemAccount(systemAccount);
1029						if (contact.setPhotoUri(phoneContact.getString("photouri"))) {
1030							getAvatarService().clear(contact);
1031						}
1032						contact.setSystemName(phoneContact.getString("displayname"));
1033						withSystemAccounts.remove(contact);
1034					}
1035					for(Contact contact : withSystemAccounts) {
1036						contact.setSystemAccount(null);
1037						contact.setSystemName(null);
1038						if (contact.setPhotoUri(null)) {
1039							getAvatarService().clear(contact);
1040						}
1041					}
1042				}
1043				Log.d(Config.LOGTAG,"finished merging phone contacts");
1044				updateAccountUi();
1045			}
1046		});
1047		mPhoneContactMergerThread.start();
1048	}
1049
1050	private void restoreFromDatabase() {
1051		synchronized (this.conversations) {
1052			final Map<String, Account> accountLookupTable = new Hashtable<>();
1053			for (Account account : this.accounts) {
1054				accountLookupTable.put(account.getUuid(), account);
1055			}
1056			this.conversations.addAll(databaseBackend.getConversations(Conversation.STATUS_AVAILABLE));
1057			for (Conversation conversation : this.conversations) {
1058				Account account = accountLookupTable.get(conversation.getAccountUuid());
1059				conversation.setAccount(account);
1060			}
1061			Runnable runnable =new Runnable() {
1062				@Override
1063				public void run() {
1064					Log.d(Config.LOGTAG,"restoring roster");
1065					for(Account account : accounts) {
1066						databaseBackend.readRoster(account.getRoster());
1067						account.initAccountServices(XmppConnectionService.this);
1068					}
1069					getBitmapCache().evictAll();
1070					Looper.prepare();
1071					PhoneHelper.loadPhoneContacts(getApplicationContext(),
1072							new CopyOnWriteArrayList<Bundle>(),
1073							XmppConnectionService.this);
1074					Log.d(Config.LOGTAG,"restoring messages");
1075					for (Conversation conversation : conversations) {
1076						conversation.addAll(0, databaseBackend.getMessages(conversation, Config.PAGE_SIZE));
1077						checkDeletedFiles(conversation);
1078					}
1079					mRestoredFromDatabase = true;
1080					Log.d(Config.LOGTAG,"restored all messages");
1081					updateConversationUi();
1082				}
1083			};
1084			mDatabaseExecutor.execute(runnable);
1085		}
1086	}
1087
1088	public List<Conversation> getConversations() {
1089		return this.conversations;
1090	}
1091
1092	private void checkDeletedFiles(Conversation conversation) {
1093		conversation.findMessagesWithFiles(new Conversation.OnMessageFound() {
1094
1095			@Override
1096			public void onMessageFound(Message message) {
1097				if (!getFileBackend().isFileAvailable(message)) {
1098					message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
1099					final int s = message.getStatus();
1100					if(s == Message.STATUS_WAITING || s == Message.STATUS_OFFERED || s == Message.STATUS_UNSEND) {
1101						markMessage(message,Message.STATUS_SEND_FAILED);
1102					}
1103				}
1104			}
1105		});
1106	}
1107
1108	private void markFileDeleted(String uuid) {
1109		for (Conversation conversation : getConversations()) {
1110			Message message = conversation.findMessageWithFileAndUuid(uuid);
1111			if (message != null) {
1112				if (!getFileBackend().isFileAvailable(message)) {
1113					message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
1114					final int s = message.getStatus();
1115					if(s == Message.STATUS_WAITING || s == Message.STATUS_OFFERED || s == Message.STATUS_UNSEND) {
1116						markMessage(message,Message.STATUS_SEND_FAILED);
1117					} else {
1118						updateConversationUi();
1119					}
1120				}
1121				return;
1122			}
1123		}
1124	}
1125
1126	public void populateWithOrderedConversations(final List<Conversation> list) {
1127		populateWithOrderedConversations(list, true);
1128	}
1129
1130	public void populateWithOrderedConversations(final List<Conversation> list, boolean includeNoFileUpload) {
1131		list.clear();
1132		if (includeNoFileUpload) {
1133			list.addAll(getConversations());
1134		} else {
1135			for (Conversation conversation : getConversations()) {
1136				if (conversation.getMode() == Conversation.MODE_SINGLE
1137						|| conversation.getAccount().httpUploadAvailable()) {
1138					list.add(conversation);
1139				}
1140			}
1141		}
1142		Collections.sort(list, new Comparator<Conversation>() {
1143			@Override
1144			public int compare(Conversation lhs, Conversation rhs) {
1145				Message left = lhs.getLatestMessage();
1146				Message right = rhs.getLatestMessage();
1147				if (left.getTimeSent() > right.getTimeSent()) {
1148					return -1;
1149				} else if (left.getTimeSent() < right.getTimeSent()) {
1150					return 1;
1151				} else {
1152					return 0;
1153				}
1154			}
1155		});
1156	}
1157
1158	public void loadMoreMessages(final Conversation conversation, final long timestamp, final OnMoreMessagesLoaded callback) {
1159		if (XmppConnectionService.this.getMessageArchiveService().queryInProgress(conversation,callback)) {
1160			return;
1161		}
1162		Log.d(Config.LOGTAG, "load more messages for " + conversation.getName() + " prior to " + MessageGenerator.getTimestamp(timestamp));
1163		Runnable runnable = new Runnable() {
1164			@Override
1165			public void run() {
1166				final Account account = conversation.getAccount();
1167				List<Message> messages = databaseBackend.getMessages(conversation, 50,timestamp);
1168				if (messages.size() > 0) {
1169					conversation.addAll(0, messages);
1170					checkDeletedFiles(conversation);
1171					callback.onMoreMessagesLoaded(messages.size(), conversation);
1172				} else if (conversation.hasMessagesLeftOnServer()
1173						&& account.isOnlineAndConnected()) {
1174					if ((conversation.getMode() == Conversation.MODE_SINGLE && account.getXmppConnection().getFeatures().mam())
1175							|| (conversation.getMode() == Conversation.MODE_MULTI && conversation.getMucOptions().mamSupport())) {
1176						MessageArchiveService.Query query = getMessageArchiveService().query(conversation,0,timestamp - 1);
1177						if (query != null) {
1178							query.setCallback(callback);
1179						}
1180						callback.informUser(R.string.fetching_history_from_server);
1181					}
1182				}
1183			}
1184		};
1185		mDatabaseExecutor.execute(runnable);
1186	}
1187
1188	public List<Account> getAccounts() {
1189		return this.accounts;
1190	}
1191
1192	public Conversation find(final Iterable<Conversation> haystack, final Contact contact) {
1193		for (final Conversation conversation : haystack) {
1194			if (conversation.getContact() == contact) {
1195				return conversation;
1196			}
1197		}
1198		return null;
1199	}
1200
1201	public Conversation find(final Iterable<Conversation> haystack, final Account account, final Jid jid) {
1202		if (jid == null) {
1203			return null;
1204		}
1205		for (final Conversation conversation : haystack) {
1206			if ((account == null || conversation.getAccount() == account)
1207					&& (conversation.getJid().toBareJid().equals(jid.toBareJid()))) {
1208				return conversation;
1209			}
1210		}
1211		return null;
1212	}
1213
1214	public Conversation findOrCreateConversation(final Account account, final Jid jid, final boolean muc) {
1215		return this.findOrCreateConversation(account, jid, muc, null);
1216	}
1217
1218	public Conversation findOrCreateConversation(final Account account, final Jid jid, final boolean muc, final MessageArchiveService.Query query) {
1219		synchronized (this.conversations) {
1220			Conversation conversation = find(account, jid);
1221			if (conversation != null) {
1222				return conversation;
1223			}
1224			conversation = databaseBackend.findConversation(account, jid);
1225			if (conversation != null) {
1226				conversation.setStatus(Conversation.STATUS_AVAILABLE);
1227				conversation.setAccount(account);
1228				if (muc) {
1229					conversation.setMode(Conversation.MODE_MULTI);
1230					conversation.setContactJid(jid);
1231				} else {
1232					conversation.setMode(Conversation.MODE_SINGLE);
1233					conversation.setContactJid(jid.toBareJid());
1234				}
1235				conversation.setNextEncryption(-1);
1236				conversation.addAll(0, databaseBackend.getMessages(conversation, Config.PAGE_SIZE));
1237				this.databaseBackend.updateConversation(conversation);
1238			} else {
1239				String conversationName;
1240				Contact contact = account.getRoster().getContact(jid);
1241				if (contact != null) {
1242					conversationName = contact.getDisplayName();
1243				} else {
1244					conversationName = jid.getLocalpart();
1245				}
1246				if (muc) {
1247					conversation = new Conversation(conversationName, account, jid,
1248							Conversation.MODE_MULTI);
1249				} else {
1250					conversation = new Conversation(conversationName, account, jid.toBareJid(),
1251							Conversation.MODE_SINGLE);
1252				}
1253				this.databaseBackend.createConversation(conversation);
1254			}
1255			if (account.getXmppConnection() != null
1256					&& account.getXmppConnection().getFeatures().mam()
1257					&& !muc) {
1258				if (query == null) {
1259					this.mMessageArchiveService.query(conversation);
1260				} else {
1261					if (query.getConversation() == null) {
1262						this.mMessageArchiveService.query(conversation, query.getStart());
1263					}
1264				}
1265			}
1266			checkDeletedFiles(conversation);
1267			this.conversations.add(conversation);
1268			updateConversationUi();
1269			return conversation;
1270		}
1271	}
1272
1273	public void archiveConversation(Conversation conversation) {
1274		getNotificationService().clear(conversation);
1275		conversation.setStatus(Conversation.STATUS_ARCHIVED);
1276		conversation.setNextEncryption(-1);
1277		synchronized (this.conversations) {
1278			if (conversation.getMode() == Conversation.MODE_MULTI) {
1279				if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
1280					Bookmark bookmark = conversation.getBookmark();
1281					if (bookmark != null && bookmark.autojoin()) {
1282						bookmark.setAutojoin(false);
1283						pushBookmarks(bookmark.getAccount());
1284					}
1285				}
1286				leaveMuc(conversation);
1287			} else {
1288				conversation.endOtrIfNeeded();
1289			}
1290			this.databaseBackend.updateConversation(conversation);
1291			this.conversations.remove(conversation);
1292			updateConversationUi();
1293		}
1294	}
1295
1296	public void createAccount(final Account account) {
1297		account.initAccountServices(this);
1298		databaseBackend.createAccount(account);
1299		this.accounts.add(account);
1300		this.reconnectAccountInBackground(account);
1301		updateAccountUi();
1302	}
1303
1304	public void createAccountFromKey(final String alias, final OnAccountCreated callback) {
1305		new Thread(new Runnable() {
1306			@Override
1307			public void run() {
1308				try {
1309					X509Certificate[] chain = KeyChain.getCertificateChain(XmppConnectionService.this, alias);
1310					PrivateKey key = KeyChain.getPrivateKey(XmppConnectionService.this, alias);
1311					X500Name x500name = new JcaX509CertificateHolder(chain[0]).getSubject();
1312					String email = IETFUtils.valueToString(x500name.getRDNs(BCStyle.EmailAddress)[0].getFirst().getValue());
1313					String name = IETFUtils.valueToString(x500name.getRDNs(BCStyle.CN)[0].getFirst().getValue());
1314					Jid jid = Jid.fromString(email);
1315					if (findAccountByJid(jid) == null) {
1316						Account account = new Account(jid, "");
1317						account.setPrivateKeyAlias(alias);
1318						account.setOption(Account.OPTION_DISABLED, true);
1319						createAccount(account);
1320						callback.onAccountCreated(account);
1321					} else {
1322						callback.informUser(R.string.account_already_exists);
1323					}
1324				} catch (KeyChainException e) {
1325					callback.informUser(R.string.unable_to_parse_certificate);
1326				} catch (InterruptedException e) {
1327					callback.informUser(R.string.unable_to_parse_certificate);
1328					e.printStackTrace();
1329				} catch (CertificateEncodingException e) {
1330					callback.informUser(R.string.unable_to_parse_certificate);
1331					e.printStackTrace();
1332				} catch (InvalidJidException e) {
1333					callback.informUser(R.string.unable_to_parse_certificate);
1334					e.printStackTrace();
1335				}
1336			}
1337		}).start();
1338
1339	}
1340
1341	public void updateAccount(final Account account) {
1342		this.statusListener.onStatusChanged(account);
1343		databaseBackend.updateAccount(account);
1344		reconnectAccount(account, false, true);
1345		updateAccountUi();
1346		getNotificationService().updateErrorNotification();
1347	}
1348
1349	public void updateAccountPasswordOnServer(final Account account, final String newPassword, final OnAccountPasswordChanged callback) {
1350		final IqPacket iq = getIqGenerator().generateSetPassword(account, newPassword);
1351		sendIqPacket(account, iq, new OnIqPacketReceived() {
1352			@Override
1353			public void onIqPacketReceived(final Account account, final IqPacket packet) {
1354				if (packet.getType() == IqPacket.TYPE.RESULT) {
1355					account.setPassword(newPassword);
1356					databaseBackend.updateAccount(account);
1357					callback.onPasswordChangeSucceeded();
1358				} else {
1359					callback.onPasswordChangeFailed();
1360				}
1361			}
1362		});
1363	}
1364
1365	public void deleteAccount(final Account account) {
1366		synchronized (this.conversations) {
1367			for (final Conversation conversation : conversations) {
1368				if (conversation.getAccount() == account) {
1369					if (conversation.getMode() == Conversation.MODE_MULTI) {
1370						leaveMuc(conversation);
1371					} else if (conversation.getMode() == Conversation.MODE_SINGLE) {
1372						conversation.endOtrIfNeeded();
1373					}
1374					conversations.remove(conversation);
1375				}
1376			}
1377			if (account.getXmppConnection() != null) {
1378				this.disconnect(account, true);
1379			}
1380			databaseBackend.deleteAccount(account);
1381			this.accounts.remove(account);
1382			updateAccountUi();
1383			getNotificationService().updateErrorNotification();
1384		}
1385	}
1386
1387	public void setOnConversationListChangedListener(OnConversationUpdate listener) {
1388		synchronized (this) {
1389			if (checkListeners()) {
1390				switchToForeground();
1391			}
1392			this.mOnConversationUpdate = listener;
1393			this.mNotificationService.setIsInForeground(true);
1394			if (this.convChangedListenerCount < 2) {
1395				this.convChangedListenerCount++;
1396			}
1397		}
1398	}
1399
1400	public void removeOnConversationListChangedListener() {
1401		synchronized (this) {
1402			this.convChangedListenerCount--;
1403			if (this.convChangedListenerCount <= 0) {
1404				this.convChangedListenerCount = 0;
1405				this.mOnConversationUpdate = null;
1406				this.mNotificationService.setIsInForeground(false);
1407				if (checkListeners()) {
1408					switchToBackground();
1409				}
1410			}
1411		}
1412	}
1413
1414	public void setOnShowErrorToastListener(OnShowErrorToast onShowErrorToast) {
1415		synchronized (this) {
1416			if (checkListeners()) {
1417				switchToForeground();
1418			}
1419			this.mOnShowErrorToast = onShowErrorToast;
1420			if (this.showErrorToastListenerCount < 2) {
1421				this.showErrorToastListenerCount++;
1422			}
1423		}
1424		this.mOnShowErrorToast = onShowErrorToast;
1425	}
1426
1427	public void removeOnShowErrorToastListener() {
1428		synchronized (this) {
1429			this.showErrorToastListenerCount--;
1430			if (this.showErrorToastListenerCount <= 0) {
1431				this.showErrorToastListenerCount = 0;
1432				this.mOnShowErrorToast = null;
1433				if (checkListeners()) {
1434					switchToBackground();
1435				}
1436			}
1437		}
1438	}
1439
1440	public void setOnAccountListChangedListener(OnAccountUpdate listener) {
1441		synchronized (this) {
1442			if (checkListeners()) {
1443				switchToForeground();
1444			}
1445			this.mOnAccountUpdate = listener;
1446			if (this.accountChangedListenerCount < 2) {
1447				this.accountChangedListenerCount++;
1448			}
1449		}
1450	}
1451
1452	public void removeOnAccountListChangedListener() {
1453		synchronized (this) {
1454			this.accountChangedListenerCount--;
1455			if (this.accountChangedListenerCount <= 0) {
1456				this.mOnAccountUpdate = null;
1457				this.accountChangedListenerCount = 0;
1458				if (checkListeners()) {
1459					switchToBackground();
1460				}
1461			}
1462		}
1463	}
1464
1465	public void setOnCaptchaRequestedListener(OnCaptchaRequested listener) {
1466		synchronized (this) {
1467			if (checkListeners()) {
1468				switchToForeground();
1469			}
1470			this.mOnCaptchaRequested = listener;
1471			if (this.captchaRequestedListenerCount < 2) {
1472				this.captchaRequestedListenerCount++;
1473			}
1474		}
1475	}
1476
1477	public void removeOnCaptchaRequestedListener() {
1478		synchronized (this) {
1479			this.captchaRequestedListenerCount--;
1480			if (this.captchaRequestedListenerCount <= 0) {
1481				this.mOnCaptchaRequested = null;
1482				this.captchaRequestedListenerCount = 0;
1483				if (checkListeners()) {
1484					switchToBackground();
1485				}
1486			}
1487		}
1488	}
1489
1490	public void setOnRosterUpdateListener(final OnRosterUpdate listener) {
1491		synchronized (this) {
1492			if (checkListeners()) {
1493				switchToForeground();
1494			}
1495			this.mOnRosterUpdate = listener;
1496			if (this.rosterChangedListenerCount < 2) {
1497				this.rosterChangedListenerCount++;
1498			}
1499		}
1500	}
1501
1502	public void removeOnRosterUpdateListener() {
1503		synchronized (this) {
1504			this.rosterChangedListenerCount--;
1505			if (this.rosterChangedListenerCount <= 0) {
1506				this.rosterChangedListenerCount = 0;
1507				this.mOnRosterUpdate = null;
1508				if (checkListeners()) {
1509					switchToBackground();
1510				}
1511			}
1512		}
1513	}
1514
1515	public void setOnUpdateBlocklistListener(final OnUpdateBlocklist listener) {
1516		synchronized (this) {
1517			if (checkListeners()) {
1518				switchToForeground();
1519			}
1520			this.mOnUpdateBlocklist = listener;
1521			if (this.updateBlocklistListenerCount < 2) {
1522				this.updateBlocklistListenerCount++;
1523			}
1524		}
1525	}
1526
1527	public void removeOnUpdateBlocklistListener() {
1528		synchronized (this) {
1529			this.updateBlocklistListenerCount--;
1530			if (this.updateBlocklistListenerCount <= 0) {
1531				this.updateBlocklistListenerCount = 0;
1532				this.mOnUpdateBlocklist = null;
1533				if (checkListeners()) {
1534					switchToBackground();
1535				}
1536			}
1537		}
1538	}
1539
1540	public void setOnKeyStatusUpdatedListener(final OnKeyStatusUpdated listener) {
1541		synchronized (this) {
1542			if (checkListeners()) {
1543				switchToForeground();
1544			}
1545			this.mOnKeyStatusUpdated = listener;
1546			if (this.keyStatusUpdatedListenerCount < 2) {
1547				this.keyStatusUpdatedListenerCount++;
1548			}
1549		}
1550	}
1551
1552	public void removeOnNewKeysAvailableListener() {
1553		synchronized (this) {
1554			this.keyStatusUpdatedListenerCount--;
1555			if (this.keyStatusUpdatedListenerCount <= 0) {
1556				this.keyStatusUpdatedListenerCount = 0;
1557				this.mOnKeyStatusUpdated = null;
1558				if (checkListeners()) {
1559					switchToBackground();
1560				}
1561			}
1562		}
1563	}
1564
1565	public void setOnMucRosterUpdateListener(OnMucRosterUpdate listener) {
1566		synchronized (this) {
1567			if (checkListeners()) {
1568				switchToForeground();
1569			}
1570			this.mOnMucRosterUpdate = listener;
1571			if (this.mucRosterChangedListenerCount < 2) {
1572				this.mucRosterChangedListenerCount++;
1573			}
1574		}
1575	}
1576
1577	public void removeOnMucRosterUpdateListener() {
1578		synchronized (this) {
1579			this.mucRosterChangedListenerCount--;
1580			if (this.mucRosterChangedListenerCount <= 0) {
1581				this.mucRosterChangedListenerCount = 0;
1582				this.mOnMucRosterUpdate = null;
1583				if (checkListeners()) {
1584					switchToBackground();
1585				}
1586			}
1587		}
1588	}
1589
1590	private boolean checkListeners() {
1591		return (this.mOnAccountUpdate == null
1592				&& this.mOnConversationUpdate == null
1593				&& this.mOnRosterUpdate == null
1594				&& this.mOnCaptchaRequested == null
1595				&& this.mOnUpdateBlocklist == null
1596				&& this.mOnShowErrorToast == null
1597				&& this.mOnKeyStatusUpdated == null);
1598	}
1599
1600	private void switchToForeground() {
1601		for (Account account : getAccounts()) {
1602			if (account.getStatus() == Account.State.ONLINE) {
1603				XmppConnection connection = account.getXmppConnection();
1604				if (connection != null && connection.getFeatures().csi()) {
1605					connection.sendActive();
1606				}
1607			}
1608		}
1609		Log.d(Config.LOGTAG, "app switched into foreground");
1610	}
1611
1612	private void switchToBackground() {
1613		for (Account account : getAccounts()) {
1614			if (account.getStatus() == Account.State.ONLINE) {
1615				XmppConnection connection = account.getXmppConnection();
1616				if (connection != null && connection.getFeatures().csi()) {
1617					connection.sendInactive();
1618				}
1619			}
1620		}
1621		for(Conversation conversation : getConversations()) {
1622			conversation.setIncomingChatState(ChatState.ACTIVE);
1623		}
1624		this.mNotificationService.setIsInForeground(false);
1625		Log.d(Config.LOGTAG, "app switched into background");
1626	}
1627
1628	private void connectMultiModeConversations(Account account) {
1629		List<Conversation> conversations = getConversations();
1630		for (Conversation conversation : conversations) {
1631			if (conversation.getMode() == Conversation.MODE_MULTI && conversation.getAccount() == account) {
1632				joinMuc(conversation,true);
1633			}
1634		}
1635	}
1636
1637	public void joinMuc(Conversation conversation) {
1638		joinMuc(conversation, false);
1639	}
1640
1641	private void joinMuc(Conversation conversation, boolean now) {
1642		Account account = conversation.getAccount();
1643		account.pendingConferenceJoins.remove(conversation);
1644		account.pendingConferenceLeaves.remove(conversation);
1645		if (account.getStatus() == Account.State.ONLINE || now) {
1646			conversation.resetMucOptions();
1647			fetchConferenceConfiguration(conversation, new OnConferenceConfigurationFetched() {
1648				@Override
1649				public void onConferenceConfigurationFetched(Conversation conversation) {
1650					Account account = conversation.getAccount();
1651					final String nick = conversation.getMucOptions().getProposedNick();
1652					final Jid joinJid = conversation.getMucOptions().createJoinJid(nick);
1653					if (joinJid == null) {
1654						return; //safety net
1655					}
1656					Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": joining conversation " + joinJid.toString());
1657					PresencePacket packet = new PresencePacket();
1658					packet.setFrom(conversation.getAccount().getJid());
1659					packet.setTo(joinJid);
1660					Element x = packet.addChild("x", "http://jabber.org/protocol/muc");
1661					if (conversation.getMucOptions().getPassword() != null) {
1662						x.addChild("password").setContent(conversation.getMucOptions().getPassword());
1663					}
1664
1665					if (conversation.getMucOptions().mamSupport()) {
1666						// Use MAM instead of the limited muc history to get history
1667						x.addChild("history").setAttribute("maxchars", "0");
1668					} else {
1669						// Fallback to muc history
1670						x.addChild("history").setAttribute("since", PresenceGenerator.getTimestamp(conversation.getLastMessageTransmitted()));
1671					}
1672					String sig = account.getPgpSignature();
1673					if (sig != null) {
1674						packet.addChild("status").setContent("online");
1675						packet.addChild("x", "jabber:x:signed").setContent(sig);
1676					}
1677					sendPresencePacket(account, packet);
1678					fetchConferenceConfiguration(conversation);
1679					if (!joinJid.equals(conversation.getJid())) {
1680						conversation.setContactJid(joinJid);
1681						databaseBackend.updateConversation(conversation);
1682					}
1683					conversation.setHasMessagesLeftOnServer(false);
1684					if (conversation.getMucOptions().mamSupport()) {
1685						getMessageArchiveService().catchupMUC(conversation);
1686					}
1687				}
1688			});
1689
1690		} else {
1691			account.pendingConferenceJoins.add(conversation);
1692		}
1693	}
1694
1695	public void providePasswordForMuc(Conversation conversation, String password) {
1696		if (conversation.getMode() == Conversation.MODE_MULTI) {
1697			conversation.getMucOptions().setPassword(password);
1698			if (conversation.getBookmark() != null) {
1699				conversation.getBookmark().setAutojoin(true);
1700				pushBookmarks(conversation.getAccount());
1701			}
1702			databaseBackend.updateConversation(conversation);
1703			joinMuc(conversation);
1704		}
1705	}
1706
1707	public void renameInMuc(final Conversation conversation, final String nick, final UiCallback<Conversation> callback) {
1708		final MucOptions options = conversation.getMucOptions();
1709		final Jid joinJid = options.createJoinJid(nick);
1710		if (options.online()) {
1711			Account account = conversation.getAccount();
1712			options.setOnRenameListener(new OnRenameListener() {
1713
1714				@Override
1715				public void onSuccess() {
1716					conversation.setContactJid(joinJid);
1717					databaseBackend.updateConversation(conversation);
1718					Bookmark bookmark = conversation.getBookmark();
1719					if (bookmark != null) {
1720						bookmark.setNick(nick);
1721						pushBookmarks(bookmark.getAccount());
1722					}
1723					callback.success(conversation);
1724				}
1725
1726				@Override
1727				public void onFailure() {
1728					callback.error(R.string.nick_in_use, conversation);
1729				}
1730			});
1731
1732			PresencePacket packet = new PresencePacket();
1733			packet.setTo(joinJid);
1734			packet.setFrom(conversation.getAccount().getJid());
1735
1736			String sig = account.getPgpSignature();
1737			if (sig != null) {
1738				packet.addChild("status").setContent("online");
1739				packet.addChild("x", "jabber:x:signed").setContent(sig);
1740			}
1741			sendPresencePacket(account, packet);
1742		} else {
1743			conversation.setContactJid(joinJid);
1744			databaseBackend.updateConversation(conversation);
1745			if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
1746				Bookmark bookmark = conversation.getBookmark();
1747				if (bookmark != null) {
1748					bookmark.setNick(nick);
1749					pushBookmarks(bookmark.getAccount());
1750				}
1751				joinMuc(conversation);
1752			}
1753		}
1754	}
1755
1756	public void leaveMuc(Conversation conversation) {
1757		Account account = conversation.getAccount();
1758		account.pendingConferenceJoins.remove(conversation);
1759		account.pendingConferenceLeaves.remove(conversation);
1760		if (account.getStatus() == Account.State.ONLINE) {
1761			PresencePacket packet = new PresencePacket();
1762			packet.setTo(conversation.getJid());
1763			packet.setFrom(conversation.getAccount().getJid());
1764			packet.setAttribute("type", "unavailable");
1765			sendPresencePacket(conversation.getAccount(), packet);
1766			conversation.getMucOptions().setOffline();
1767			conversation.deregisterWithBookmark();
1768			Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid()
1769					+ ": leaving muc " + conversation.getJid());
1770		} else {
1771			account.pendingConferenceLeaves.add(conversation);
1772		}
1773	}
1774
1775	private String findConferenceServer(final Account account) {
1776		String server;
1777		if (account.getXmppConnection() != null) {
1778			server = account.getXmppConnection().getMucServer();
1779			if (server != null) {
1780				return server;
1781			}
1782		}
1783		for (Account other : getAccounts()) {
1784			if (other != account && other.getXmppConnection() != null) {
1785				server = other.getXmppConnection().getMucServer();
1786				if (server != null) {
1787					return server;
1788				}
1789			}
1790		}
1791		return null;
1792	}
1793
1794	public void createAdhocConference(final Account account, final Iterable<Jid> jids, final UiCallback<Conversation> callback) {
1795		Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": creating adhoc conference with " + jids.toString());
1796		if (account.getStatus() == Account.State.ONLINE) {
1797			try {
1798				String server = findConferenceServer(account);
1799				if (server == null) {
1800					if (callback != null) {
1801						callback.error(R.string.no_conference_server_found, null);
1802					}
1803					return;
1804				}
1805				String name = new BigInteger(75, getRNG()).toString(32);
1806				Jid jid = Jid.fromParts(name, server, null);
1807				final Conversation conversation = findOrCreateConversation(account, jid, true);
1808				joinMuc(conversation);
1809				Bundle options = new Bundle();
1810				options.putString("muc#roomconfig_persistentroom", "1");
1811				options.putString("muc#roomconfig_membersonly", "1");
1812				options.putString("muc#roomconfig_publicroom", "0");
1813				options.putString("muc#roomconfig_whois", "anyone");
1814				pushConferenceConfiguration(conversation, options, new OnConferenceOptionsPushed() {
1815					@Override
1816					public void onPushSucceeded() {
1817						for (Jid invite : jids) {
1818							invite(conversation, invite);
1819						}
1820						if (account.countPresences() > 1) {
1821							directInvite(conversation, account.getJid().toBareJid());
1822						}
1823						if (callback != null) {
1824							callback.success(conversation);
1825						}
1826					}
1827
1828					@Override
1829					public void onPushFailed() {
1830						if (callback != null) {
1831							callback.error(R.string.conference_creation_failed, conversation);
1832						}
1833					}
1834				});
1835
1836			} catch (InvalidJidException e) {
1837				if (callback != null) {
1838					callback.error(R.string.conference_creation_failed, null);
1839				}
1840			}
1841		} else {
1842			if (callback != null) {
1843				callback.error(R.string.not_connected_try_again, null);
1844			}
1845		}
1846	}
1847
1848	public void fetchConferenceConfiguration(final Conversation conversation) {
1849		fetchConferenceConfiguration(conversation, null);
1850	}
1851
1852	public void fetchConferenceConfiguration(final Conversation conversation, final OnConferenceConfigurationFetched callback) {
1853		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
1854		request.setTo(conversation.getJid().toBareJid());
1855		request.query("http://jabber.org/protocol/disco#info");
1856		sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
1857			@Override
1858			public void onIqPacketReceived(Account account, IqPacket packet) {
1859				if (packet.getType() == IqPacket.TYPE.RESULT) {
1860					ArrayList<String> features = new ArrayList<>();
1861					for (Element child : packet.query().getChildren()) {
1862						if (child != null && child.getName().equals("feature")) {
1863							String var = child.getAttribute("var");
1864							if (var != null) {
1865								features.add(var);
1866							}
1867						}
1868					}
1869					conversation.getMucOptions().updateFeatures(features);
1870					if (callback != null) {
1871						callback.onConferenceConfigurationFetched(conversation);
1872					}
1873					updateConversationUi();
1874				}
1875			}
1876		});
1877	}
1878
1879	public void pushConferenceConfiguration(final Conversation conversation, final Bundle options, final OnConferenceOptionsPushed callback) {
1880		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
1881		request.setTo(conversation.getJid().toBareJid());
1882		request.query("http://jabber.org/protocol/muc#owner");
1883		sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
1884			@Override
1885			public void onIqPacketReceived(Account account, IqPacket packet) {
1886				if (packet.getType() == IqPacket.TYPE.RESULT) {
1887					Data data = Data.parse(packet.query().findChild("x", "jabber:x:data"));
1888					for (Field field : data.getFields()) {
1889						if (options.containsKey(field.getFieldName())) {
1890							field.setValue(options.getString(field.getFieldName()));
1891						}
1892					}
1893					data.submit();
1894					IqPacket set = new IqPacket(IqPacket.TYPE.SET);
1895					set.setTo(conversation.getJid().toBareJid());
1896					set.query("http://jabber.org/protocol/muc#owner").addChild(data);
1897					sendIqPacket(account, set, new OnIqPacketReceived() {
1898						@Override
1899						public void onIqPacketReceived(Account account, IqPacket packet) {
1900							if (callback != null) {
1901								if (packet.getType() == IqPacket.TYPE.RESULT) {
1902									callback.onPushSucceeded();
1903								} else {
1904									callback.onPushFailed();
1905								}
1906							}
1907						}
1908					});
1909				} else {
1910					if (callback != null) {
1911						callback.onPushFailed();
1912					}
1913				}
1914			}
1915		});
1916	}
1917
1918	public void pushSubjectToConference(final Conversation conference, final String subject) {
1919		MessagePacket packet = this.getMessageGenerator().conferenceSubject(conference, subject);
1920		this.sendMessagePacket(conference.getAccount(), packet);
1921		final MucOptions mucOptions = conference.getMucOptions();
1922		final MucOptions.User self = mucOptions.getSelf();
1923		if (!mucOptions.persistent() && self.getAffiliation().ranks(MucOptions.Affiliation.OWNER)) {
1924			Bundle options = new Bundle();
1925			options.putString("muc#roomconfig_persistentroom", "1");
1926			this.pushConferenceConfiguration(conference, options, null);
1927		}
1928	}
1929
1930	public void changeAffiliationInConference(final Conversation conference, Jid user, MucOptions.Affiliation affiliation, final OnAffiliationChanged callback) {
1931		final Jid jid = user.toBareJid();
1932		IqPacket request = this.mIqGenerator.changeAffiliation(conference, jid, affiliation.toString());
1933		sendIqPacket(conference.getAccount(), request, new OnIqPacketReceived() {
1934			@Override
1935			public void onIqPacketReceived(Account account, IqPacket packet) {
1936				if (packet.getType() == IqPacket.TYPE.RESULT) {
1937					callback.onAffiliationChangedSuccessful(jid);
1938				} else {
1939					callback.onAffiliationChangeFailed(jid, R.string.could_not_change_affiliation);
1940				}
1941			}
1942		});
1943	}
1944
1945	public void changeAffiliationsInConference(final Conversation conference, MucOptions.Affiliation before, MucOptions.Affiliation after) {
1946		List<Jid> jids = new ArrayList<>();
1947		for (MucOptions.User user : conference.getMucOptions().getUsers()) {
1948			if (user.getAffiliation() == before && user.getJid() != null) {
1949				jids.add(user.getJid());
1950			}
1951		}
1952		IqPacket request = this.mIqGenerator.changeAffiliation(conference, jids, after.toString());
1953		sendIqPacket(conference.getAccount(), request, mDefaultIqHandler);
1954	}
1955
1956	public void changeRoleInConference(final Conversation conference, final String nick, MucOptions.Role role, final OnRoleChanged callback) {
1957		IqPacket request = this.mIqGenerator.changeRole(conference, nick, role.toString());
1958		Log.d(Config.LOGTAG, request.toString());
1959		sendIqPacket(conference.getAccount(), request, new OnIqPacketReceived() {
1960			@Override
1961			public void onIqPacketReceived(Account account, IqPacket packet) {
1962				Log.d(Config.LOGTAG, packet.toString());
1963				if (packet.getType() == IqPacket.TYPE.RESULT) {
1964					callback.onRoleChangedSuccessful(nick);
1965				} else {
1966					callback.onRoleChangeFailed(nick, R.string.could_not_change_role);
1967				}
1968			}
1969		});
1970	}
1971
1972	public void disconnect(Account account, boolean force) {
1973		if ((account.getStatus() == Account.State.ONLINE)
1974				|| (account.getStatus() == Account.State.DISABLED)) {
1975			if (!force) {
1976				List<Conversation> conversations = getConversations();
1977				for (Conversation conversation : conversations) {
1978					if (conversation.getAccount() == account) {
1979						if (conversation.getMode() == Conversation.MODE_MULTI) {
1980							leaveMuc(conversation);
1981						} else {
1982							if (conversation.endOtrIfNeeded()) {
1983								Log.d(Config.LOGTAG, account.getJid().toBareJid()
1984										+ ": ended otr session with "
1985										+ conversation.getJid());
1986							}
1987						}
1988					}
1989				}
1990				sendOfflinePresence(account);
1991			}
1992			account.getXmppConnection().disconnect(force);
1993		}
1994	}
1995
1996	@Override
1997	public IBinder onBind(Intent intent) {
1998		return mBinder;
1999	}
2000
2001	public void updateMessage(Message message) {
2002		databaseBackend.updateMessage(message);
2003		updateConversationUi();
2004	}
2005
2006	protected void syncDirtyContacts(Account account) {
2007		for (Contact contact : account.getRoster().getContacts()) {
2008			if (contact.getOption(Contact.Options.DIRTY_PUSH)) {
2009				pushContactToServer(contact);
2010			}
2011			if (contact.getOption(Contact.Options.DIRTY_DELETE)) {
2012				deleteContactOnServer(contact);
2013			}
2014		}
2015	}
2016
2017	public void createContact(Contact contact) {
2018		SharedPreferences sharedPref = getPreferences();
2019		boolean autoGrant = sharedPref.getBoolean("grant_new_contacts", true);
2020		if (autoGrant) {
2021			contact.setOption(Contact.Options.PREEMPTIVE_GRANT);
2022			contact.setOption(Contact.Options.ASKING);
2023		}
2024		pushContactToServer(contact);
2025	}
2026
2027	public void onOtrSessionEstablished(Conversation conversation) {
2028		final Account account = conversation.getAccount();
2029		final Session otrSession = conversation.getOtrSession();
2030		Log.d(Config.LOGTAG,
2031				account.getJid().toBareJid() + " otr session established with "
2032						+ conversation.getJid() + "/"
2033						+ otrSession.getSessionID().getUserID());
2034		conversation.findUnsentMessagesWithEncryption(Message.ENCRYPTION_OTR, new Conversation.OnMessageFound() {
2035
2036			@Override
2037			public void onMessageFound(Message message) {
2038				SessionID id = otrSession.getSessionID();
2039				try {
2040					message.setCounterpart(Jid.fromString(id.getAccountID() + "/" + id.getUserID()));
2041				} catch (InvalidJidException e) {
2042					return;
2043				}
2044				if (message.needsUploading()) {
2045					mJingleConnectionManager.createNewConnection(message);
2046				} else {
2047					MessagePacket outPacket = mMessageGenerator.generateOtrChat(message);
2048					if (outPacket != null) {
2049						mMessageGenerator.addDelay(outPacket, message.getTimeSent());
2050						message.setStatus(Message.STATUS_SEND);
2051						databaseBackend.updateMessage(message);
2052						sendMessagePacket(account, outPacket);
2053					}
2054				}
2055				updateConversationUi();
2056			}
2057		});
2058	}
2059
2060	public boolean renewSymmetricKey(Conversation conversation) {
2061		Account account = conversation.getAccount();
2062		byte[] symmetricKey = new byte[32];
2063		this.mRandom.nextBytes(symmetricKey);
2064		Session otrSession = conversation.getOtrSession();
2065		if (otrSession != null) {
2066			MessagePacket packet = new MessagePacket();
2067			packet.setType(MessagePacket.TYPE_CHAT);
2068			packet.setFrom(account.getJid());
2069			MessageGenerator.addMessageHints(packet);
2070			packet.setAttribute("to", otrSession.getSessionID().getAccountID() + "/"
2071					+ otrSession.getSessionID().getUserID());
2072			try {
2073				packet.setBody(otrSession
2074						.transformSending(CryptoHelper.FILETRANSFER
2075								+ CryptoHelper.bytesToHex(symmetricKey))[0]);
2076				sendMessagePacket(account, packet);
2077				conversation.setSymmetricKey(symmetricKey);
2078				return true;
2079			} catch (OtrException e) {
2080				return false;
2081			}
2082		}
2083		return false;
2084	}
2085
2086	public void pushContactToServer(final Contact contact) {
2087		contact.resetOption(Contact.Options.DIRTY_DELETE);
2088		contact.setOption(Contact.Options.DIRTY_PUSH);
2089		final Account account = contact.getAccount();
2090		if (account.getStatus() == Account.State.ONLINE) {
2091			final boolean ask = contact.getOption(Contact.Options.ASKING);
2092			final boolean sendUpdates = contact
2093					.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)
2094					&& contact.getOption(Contact.Options.PREEMPTIVE_GRANT);
2095			final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
2096			iq.query(Xmlns.ROSTER).addChild(contact.asElement());
2097			account.getXmppConnection().sendIqPacket(iq, mDefaultIqHandler);
2098			if (sendUpdates) {
2099				sendPresencePacket(account,
2100						mPresenceGenerator.sendPresenceUpdatesTo(contact));
2101			}
2102			if (ask) {
2103				sendPresencePacket(account,
2104						mPresenceGenerator.requestPresenceUpdatesFrom(contact));
2105			}
2106		}
2107	}
2108
2109	public void publishAvatar(final Account account,
2110							  final Uri image,
2111							  final UiCallback<Avatar> callback) {
2112		final Bitmap.CompressFormat format = Config.AVATAR_FORMAT;
2113		final int size = Config.AVATAR_SIZE;
2114		final Avatar avatar = getFileBackend()
2115				.getPepAvatar(image, size, format);
2116		if (avatar != null) {
2117			avatar.height = size;
2118			avatar.width = size;
2119			if (format.equals(Bitmap.CompressFormat.WEBP)) {
2120				avatar.type = "image/webp";
2121			} else if (format.equals(Bitmap.CompressFormat.JPEG)) {
2122				avatar.type = "image/jpeg";
2123			} else if (format.equals(Bitmap.CompressFormat.PNG)) {
2124				avatar.type = "image/png";
2125			}
2126			if (!getFileBackend().save(avatar)) {
2127				callback.error(R.string.error_saving_avatar, avatar);
2128				return;
2129			}
2130			final IqPacket packet = this.mIqGenerator.publishAvatar(avatar);
2131			this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2132
2133				@Override
2134				public void onIqPacketReceived(Account account, IqPacket result) {
2135					if (result.getType() == IqPacket.TYPE.RESULT) {
2136						final IqPacket packet = XmppConnectionService.this.mIqGenerator
2137								.publishAvatarMetadata(avatar);
2138						sendIqPacket(account, packet, new OnIqPacketReceived() {
2139							@Override
2140							public void onIqPacketReceived(Account account, IqPacket result) {
2141								if (result.getType() == IqPacket.TYPE.RESULT) {
2142									if (account.setAvatar(avatar.getFilename())) {
2143										getAvatarService().clear(account);
2144										databaseBackend.updateAccount(account);
2145									}
2146									callback.success(avatar);
2147								} else {
2148									callback.error(
2149											R.string.error_publish_avatar_server_reject,
2150											avatar);
2151								}
2152							}
2153						});
2154					} else {
2155						callback.error(
2156								R.string.error_publish_avatar_server_reject,
2157								avatar);
2158					}
2159				}
2160			});
2161		} else {
2162			callback.error(R.string.error_publish_avatar_converting, null);
2163		}
2164	}
2165
2166	public void fetchAvatar(Account account, Avatar avatar) {
2167		fetchAvatar(account, avatar, null);
2168	}
2169
2170	private static String generateFetchKey(Account account, final Avatar avatar) {
2171		return account.getJid().toBareJid()+"_"+avatar.owner+"_"+avatar.sha1sum;
2172	}
2173
2174	public void fetchAvatar(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2175		final String KEY = generateFetchKey(account, avatar);
2176		synchronized(this.mInProgressAvatarFetches) {
2177			if (this.mInProgressAvatarFetches.contains(KEY)) {
2178				return;
2179			} else {
2180				switch (avatar.origin) {
2181					case PEP:
2182						this.mInProgressAvatarFetches.add(KEY);
2183						fetchAvatarPep(account, avatar, callback);
2184						break;
2185					case VCARD:
2186						this.mInProgressAvatarFetches.add(KEY);
2187						fetchAvatarVcard(account, avatar, callback);
2188						break;
2189				}
2190			}
2191		}
2192	}
2193
2194	private void fetchAvatarPep(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2195		IqPacket packet = this.mIqGenerator.retrievePepAvatar(avatar);
2196		sendIqPacket(account, packet, new OnIqPacketReceived() {
2197
2198			@Override
2199			public void onIqPacketReceived(Account account, IqPacket result) {
2200				synchronized (mInProgressAvatarFetches) {
2201					mInProgressAvatarFetches.remove(generateFetchKey(account, avatar));
2202				}
2203				final String ERROR = account.getJid().toBareJid()
2204						+ ": fetching avatar for " + avatar.owner + " failed ";
2205				if (result.getType() == IqPacket.TYPE.RESULT) {
2206					avatar.image = mIqParser.avatarData(result);
2207					if (avatar.image != null) {
2208						if (getFileBackend().save(avatar)) {
2209							if (account.getJid().toBareJid().equals(avatar.owner)) {
2210								if (account.setAvatar(avatar.getFilename())) {
2211									databaseBackend.updateAccount(account);
2212								}
2213								getAvatarService().clear(account);
2214								updateConversationUi();
2215								updateAccountUi();
2216							} else {
2217								Contact contact = account.getRoster()
2218										.getContact(avatar.owner);
2219								contact.setAvatar(avatar);
2220								getAvatarService().clear(contact);
2221								updateConversationUi();
2222								updateRosterUi();
2223							}
2224							if (callback != null) {
2225								callback.success(avatar);
2226							}
2227							Log.d(Config.LOGTAG, account.getJid().toBareJid()
2228									+ ": succesfuly fetched pep avatar for " + avatar.owner);
2229							return;
2230						}
2231					} else {
2232
2233						Log.d(Config.LOGTAG, ERROR + "(parsing error)");
2234					}
2235				} else {
2236					Element error = result.findChild("error");
2237					if (error == null) {
2238						Log.d(Config.LOGTAG, ERROR + "(server error)");
2239					} else {
2240						Log.d(Config.LOGTAG, ERROR + error.toString());
2241					}
2242				}
2243				if (callback != null) {
2244					callback.error(0, null);
2245				}
2246
2247			}
2248		});
2249	}
2250
2251	private void fetchAvatarVcard(final Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2252		IqPacket packet = this.mIqGenerator.retrieveVcardAvatar(avatar);
2253		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2254			@Override
2255			public void onIqPacketReceived(Account account, IqPacket packet) {
2256				synchronized (mInProgressAvatarFetches) {
2257					mInProgressAvatarFetches.remove(generateFetchKey(account, avatar));
2258				}
2259				if (packet.getType() == IqPacket.TYPE.RESULT) {
2260					Element vCard = packet.findChild("vCard", "vcard-temp");
2261					Element photo = vCard != null ? vCard.findChild("PHOTO") : null;
2262					String image = photo != null ? photo.findChildContent("BINVAL") : null;
2263					if (image != null) {
2264						avatar.image = image;
2265						if (getFileBackend().save(avatar)) {
2266							Log.d(Config.LOGTAG, account.getJid().toBareJid()
2267									+ ": successfully fetched vCard avatar for " + avatar.owner);
2268							Contact contact = account.getRoster()
2269									.getContact(avatar.owner);
2270							contact.setAvatar(avatar);
2271							getAvatarService().clear(contact);
2272							updateConversationUi();
2273							updateRosterUi();
2274						}
2275					}
2276				}
2277			}
2278		});
2279	}
2280
2281	public void checkForAvatar(Account account, final UiCallback<Avatar> callback) {
2282		IqPacket packet = this.mIqGenerator.retrieveAvatarMetaData(null);
2283		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2284
2285			@Override
2286			public void onIqPacketReceived(Account account, IqPacket packet) {
2287				if (packet.getType() == IqPacket.TYPE.RESULT) {
2288					Element pubsub = packet.findChild("pubsub",
2289							"http://jabber.org/protocol/pubsub");
2290					if (pubsub != null) {
2291						Element items = pubsub.findChild("items");
2292						if (items != null) {
2293							Avatar avatar = Avatar.parseMetadata(items);
2294							if (avatar != null) {
2295								avatar.owner = account.getJid().toBareJid();
2296								if (fileBackend.isAvatarCached(avatar)) {
2297									if (account.setAvatar(avatar.getFilename())) {
2298										databaseBackend.updateAccount(account);
2299									}
2300									getAvatarService().clear(account);
2301									callback.success(avatar);
2302								} else {
2303									fetchAvatarPep(account, avatar, callback);
2304								}
2305								return;
2306							}
2307						}
2308					}
2309				}
2310				callback.error(0, null);
2311			}
2312		});
2313	}
2314
2315	public void deleteContactOnServer(Contact contact) {
2316		contact.resetOption(Contact.Options.PREEMPTIVE_GRANT);
2317		contact.resetOption(Contact.Options.DIRTY_PUSH);
2318		contact.setOption(Contact.Options.DIRTY_DELETE);
2319		Account account = contact.getAccount();
2320		if (account.getStatus() == Account.State.ONLINE) {
2321			IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
2322			Element item = iq.query(Xmlns.ROSTER).addChild("item");
2323			item.setAttribute("jid", contact.getJid().toString());
2324			item.setAttribute("subscription", "remove");
2325			account.getXmppConnection().sendIqPacket(iq, mDefaultIqHandler);
2326		}
2327	}
2328
2329	public void updateConversation(Conversation conversation) {
2330		this.databaseBackend.updateConversation(conversation);
2331	}
2332
2333	private void reconnectAccount(final Account account, final boolean force, final boolean interactive) {
2334		synchronized (account) {
2335			if (account.getXmppConnection() != null) {
2336				disconnect(account, force);
2337			}
2338			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
2339
2340				synchronized (this.mInProgressAvatarFetches) {
2341					for(Iterator<String> iterator = this.mInProgressAvatarFetches.iterator(); iterator.hasNext();) {
2342						final String KEY = iterator.next();
2343						if (KEY.startsWith(account.getJid().toBareJid()+"_")) {
2344							iterator.remove();
2345						}
2346					}
2347				}
2348
2349				if (account.getXmppConnection() == null) {
2350					account.setXmppConnection(createConnection(account));
2351				}
2352				Thread thread = new Thread(account.getXmppConnection());
2353				account.getXmppConnection().setInteractive(interactive);
2354				thread.start();
2355				scheduleWakeUpCall(Config.CONNECT_TIMEOUT, account.getUuid().hashCode());
2356			} else {
2357				account.getRoster().clearPresences();
2358				account.setXmppConnection(null);
2359			}
2360		}
2361	}
2362
2363	public void reconnectAccountInBackground(final Account account) {
2364		new Thread(new Runnable() {
2365			@Override
2366			public void run() {
2367				reconnectAccount(account,false,true);
2368			}
2369		}).start();
2370	}
2371
2372	public void invite(Conversation conversation, Jid contact) {
2373		Log.d(Config.LOGTAG,conversation.getAccount().getJid().toBareJid()+": inviting "+contact+" to "+conversation.getJid().toBareJid());
2374		MessagePacket packet = mMessageGenerator.invite(conversation, contact);
2375		sendMessagePacket(conversation.getAccount(), packet);
2376	}
2377
2378	public void directInvite(Conversation conversation, Jid jid) {
2379		MessagePacket packet = mMessageGenerator.directInvite(conversation, jid);
2380		sendMessagePacket(conversation.getAccount(),packet);
2381	}
2382
2383	public void resetSendingToWaiting(Account account) {
2384		for (Conversation conversation : getConversations()) {
2385			if (conversation.getAccount() == account) {
2386				conversation.findUnsentTextMessages(new Conversation.OnMessageFound() {
2387
2388					@Override
2389					public void onMessageFound(Message message) {
2390						markMessage(message, Message.STATUS_WAITING);
2391					}
2392				});
2393			}
2394		}
2395	}
2396
2397	public Message markMessage(final Account account, final Jid recipient, final String uuid, final int status) {
2398		if (uuid == null) {
2399			return null;
2400		}
2401		for (Conversation conversation : getConversations()) {
2402			if (conversation.getJid().toBareJid().equals(recipient) && conversation.getAccount() == account) {
2403				final Message message = conversation.findSentMessageWithUuidOrRemoteId(uuid);
2404				if (message != null) {
2405					markMessage(message, status);
2406				}
2407				return message;
2408			}
2409		}
2410		return null;
2411	}
2412
2413	public boolean markMessage(Conversation conversation, String uuid, int status) {
2414		if (uuid == null) {
2415			return false;
2416		} else {
2417			Message message = conversation.findSentMessageWithUuid(uuid);
2418			if (message != null) {
2419				markMessage(message, status);
2420				return true;
2421			} else {
2422				return false;
2423			}
2424		}
2425	}
2426
2427	public void markMessage(Message message, int status) {
2428		if (status == Message.STATUS_SEND_FAILED
2429				&& (message.getStatus() == Message.STATUS_SEND_RECEIVED || message
2430				.getStatus() == Message.STATUS_SEND_DISPLAYED)) {
2431			return;
2432		}
2433		message.setStatus(status);
2434		databaseBackend.updateMessage(message);
2435		updateConversationUi();
2436	}
2437
2438	public SharedPreferences getPreferences() {
2439		return PreferenceManager
2440				.getDefaultSharedPreferences(getApplicationContext());
2441	}
2442
2443	public boolean forceEncryption() {
2444		return getPreferences().getBoolean("force_encryption", false);
2445	}
2446
2447	public boolean confirmMessages() {
2448		return getPreferences().getBoolean("confirm_messages", true);
2449	}
2450
2451	public boolean sendChatStates() {
2452		return getPreferences().getBoolean("chat_states", false);
2453	}
2454
2455	public boolean saveEncryptedMessages() {
2456		return !getPreferences().getBoolean("dont_save_encrypted", false);
2457	}
2458
2459	public boolean indicateReceived() {
2460		return getPreferences().getBoolean("indicate_received", false);
2461	}
2462
2463	public int unreadCount() {
2464		int count = 0;
2465		for(Conversation conversation : getConversations()) {
2466			count += conversation.unreadCount();
2467		}
2468		return count;
2469	}
2470
2471
2472	public void showErrorToastInUi(int resId) {
2473		if (mOnShowErrorToast != null) {
2474			mOnShowErrorToast.onShowErrorToast(resId);
2475		}
2476	}
2477
2478	public void updateConversationUi() {
2479		if (mOnConversationUpdate != null) {
2480			mOnConversationUpdate.onConversationUpdate();
2481		}
2482	}
2483
2484	public void updateAccountUi() {
2485		if (mOnAccountUpdate != null) {
2486			mOnAccountUpdate.onAccountUpdate();
2487		}
2488	}
2489
2490	public void updateRosterUi() {
2491		if (mOnRosterUpdate != null) {
2492			mOnRosterUpdate.onRosterUpdate();
2493		}
2494	}
2495
2496	public boolean displayCaptchaRequest(Account account, String id, Data data, Bitmap captcha) {
2497		boolean rc = false;
2498		if (mOnCaptchaRequested != null) {
2499			DisplayMetrics metrics = getApplicationContext().getResources().getDisplayMetrics();
2500			Bitmap scaled = Bitmap.createScaledBitmap(captcha, (int)(captcha.getWidth() * metrics.scaledDensity),
2501						(int)(captcha.getHeight() * metrics.scaledDensity), false);
2502
2503			mOnCaptchaRequested.onCaptchaRequested(account, id, data, scaled);
2504			rc = true;
2505		}
2506
2507		return rc;
2508	}
2509
2510	public void updateBlocklistUi(final OnUpdateBlocklist.Status status) {
2511		if (mOnUpdateBlocklist != null) {
2512			mOnUpdateBlocklist.OnUpdateBlocklist(status);
2513		}
2514	}
2515
2516	public void updateMucRosterUi() {
2517		if (mOnMucRosterUpdate != null) {
2518			mOnMucRosterUpdate.onMucRosterUpdate();
2519		}
2520	}
2521
2522	public void keyStatusUpdated() {
2523		if(mOnKeyStatusUpdated != null) {
2524			mOnKeyStatusUpdated.onKeyStatusUpdated();
2525		}
2526	}
2527
2528	public Account findAccountByJid(final Jid accountJid) {
2529		for (Account account : this.accounts) {
2530			if (account.getJid().toBareJid().equals(accountJid.toBareJid())) {
2531				return account;
2532			}
2533		}
2534		return null;
2535	}
2536
2537	public Conversation findConversationByUuid(String uuid) {
2538		for (Conversation conversation : getConversations()) {
2539			if (conversation.getUuid().equals(uuid)) {
2540				return conversation;
2541			}
2542		}
2543		return null;
2544	}
2545
2546	public void markRead(final Conversation conversation) {
2547		mNotificationService.clear(conversation);
2548		conversation.markRead();
2549		updateUnreadCountBadge();
2550	}
2551
2552	public synchronized void updateUnreadCountBadge() {
2553		int count = unreadCount();
2554		if (unreadCount != count) {
2555			Log.d(Config.LOGTAG, "update unread count to " + count);
2556			if (count > 0) {
2557				ShortcutBadger.with(getApplicationContext()).count(count);
2558			} else {
2559				ShortcutBadger.with(getApplicationContext()).remove();
2560			}
2561			unreadCount = count;
2562		}
2563	}
2564
2565	public void sendReadMarker(final Conversation conversation) {
2566		final Message markable = conversation.getLatestMarkableMessage();
2567		this.markRead(conversation);
2568		if (confirmMessages() && markable != null && markable.getRemoteMsgId() != null) {
2569			Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid() + ": sending read marker to " + markable.getCounterpart().toString());
2570			Account account = conversation.getAccount();
2571			final Jid to = markable.getCounterpart();
2572			MessagePacket packet = mMessageGenerator.confirm(account, to, markable.getRemoteMsgId());
2573			this.sendMessagePacket(conversation.getAccount(), packet);
2574		}
2575		updateConversationUi();
2576	}
2577
2578	public SecureRandom getRNG() {
2579		return this.mRandom;
2580	}
2581
2582	public MemorizingTrustManager getMemorizingTrustManager() {
2583		return this.mMemorizingTrustManager;
2584	}
2585
2586	public void setMemorizingTrustManager(MemorizingTrustManager trustManager) {
2587		this.mMemorizingTrustManager = trustManager;
2588	}
2589
2590	public void updateMemorizingTrustmanager() {
2591		final MemorizingTrustManager tm;
2592		final boolean dontTrustSystemCAs = getPreferences().getBoolean("dont_trust_system_cas", false);
2593		if (dontTrustSystemCAs) {
2594			 tm = new MemorizingTrustManager(getApplicationContext(), null);
2595		} else {
2596			tm = new MemorizingTrustManager(getApplicationContext());
2597		}
2598		setMemorizingTrustManager(tm);
2599	}
2600
2601	public PowerManager getPowerManager() {
2602		return this.pm;
2603	}
2604
2605	public LruCache<String, Bitmap> getBitmapCache() {
2606		return this.mBitmapCache;
2607	}
2608
2609	public void syncRosterToDisk(final Account account) {
2610		Runnable runnable = new Runnable() {
2611
2612			@Override
2613			public void run() {
2614				databaseBackend.writeRoster(account.getRoster());
2615			}
2616		};
2617		mDatabaseExecutor.execute(runnable);
2618
2619	}
2620
2621	public List<String> getKnownHosts() {
2622		final List<String> hosts = new ArrayList<>();
2623		for (final Account account : getAccounts()) {
2624			if (!hosts.contains(account.getServer().toString())) {
2625				hosts.add(account.getServer().toString());
2626			}
2627			for (final Contact contact : account.getRoster().getContacts()) {
2628				if (contact.showInRoster()) {
2629					final String server = contact.getServer().toString();
2630					if (server != null && !hosts.contains(server)) {
2631						hosts.add(server);
2632					}
2633				}
2634			}
2635		}
2636		return hosts;
2637	}
2638
2639	public List<String> getKnownConferenceHosts() {
2640		final ArrayList<String> mucServers = new ArrayList<>();
2641		for (final Account account : accounts) {
2642			if (account.getXmppConnection() != null) {
2643				final String server = account.getXmppConnection().getMucServer();
2644				if (server != null && !mucServers.contains(server)) {
2645					mucServers.add(server);
2646				}
2647			}
2648		}
2649		return mucServers;
2650	}
2651
2652	public void sendMessagePacket(Account account, MessagePacket packet) {
2653		XmppConnection connection = account.getXmppConnection();
2654		if (connection != null) {
2655			connection.sendMessagePacket(packet);
2656		}
2657	}
2658
2659	public void sendPresencePacket(Account account, PresencePacket packet) {
2660		XmppConnection connection = account.getXmppConnection();
2661		if (connection != null) {
2662			connection.sendPresencePacket(packet);
2663		}
2664	}
2665
2666	public void sendCreateAccountWithCaptchaPacket(Account account, String id, Data data) {
2667		XmppConnection connection = account.getXmppConnection();
2668		if (connection != null) {
2669			connection.sendCaptchaRegistryRequest(id, data);
2670		}
2671	}
2672
2673	public void sendIqPacket(final Account account, final IqPacket packet, final OnIqPacketReceived callback) {
2674		final XmppConnection connection = account.getXmppConnection();
2675		if (connection != null) {
2676			connection.sendIqPacket(packet, callback);
2677		}
2678	}
2679
2680	public void sendPresence(final Account account) {
2681		sendPresencePacket(account, mPresenceGenerator.selfPresence(account, getTargetPresence()));
2682	}
2683
2684	public void refreshAllPresences() {
2685		for (Account account : getAccounts()) {
2686			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
2687				sendPresence(account);
2688			}
2689		}
2690	}
2691
2692	public void sendOfflinePresence(final Account account) {
2693		sendPresencePacket(account, mPresenceGenerator.sendOfflinePresence(account));
2694	}
2695
2696	public MessageGenerator getMessageGenerator() {
2697		return this.mMessageGenerator;
2698	}
2699
2700	public PresenceGenerator getPresenceGenerator() {
2701		return this.mPresenceGenerator;
2702	}
2703
2704	public IqGenerator getIqGenerator() {
2705		return this.mIqGenerator;
2706	}
2707
2708	public IqParser getIqParser() {
2709		return this.mIqParser;
2710	}
2711
2712	public JingleConnectionManager getJingleConnectionManager() {
2713		return this.mJingleConnectionManager;
2714	}
2715
2716	public MessageArchiveService getMessageArchiveService() {
2717		return this.mMessageArchiveService;
2718	}
2719
2720	public List<Contact> findContacts(Jid jid) {
2721		ArrayList<Contact> contacts = new ArrayList<>();
2722		for (Account account : getAccounts()) {
2723			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
2724				Contact contact = account.getRoster().getContactFromRoster(jid);
2725				if (contact != null) {
2726					contacts.add(contact);
2727				}
2728			}
2729		}
2730		return contacts;
2731	}
2732
2733	public NotificationService getNotificationService() {
2734		return this.mNotificationService;
2735	}
2736
2737	public HttpConnectionManager getHttpConnectionManager() {
2738		return this.mHttpConnectionManager;
2739	}
2740
2741	public void resendFailedMessages(final Message message) {
2742		final Collection<Message> messages = new ArrayList<>();
2743		Message current = message;
2744		while (current.getStatus() == Message.STATUS_SEND_FAILED) {
2745			messages.add(current);
2746			if (current.mergeable(current.next())) {
2747				current = current.next();
2748			} else {
2749				break;
2750			}
2751		}
2752		for (final Message msg : messages) {
2753			msg.setTime(System.currentTimeMillis());
2754			markMessage(msg, Message.STATUS_WAITING);
2755			this.resendMessage(msg,false);
2756		}
2757	}
2758
2759	public void clearConversationHistory(final Conversation conversation) {
2760		conversation.clearMessages();
2761		conversation.setHasMessagesLeftOnServer(false); //avoid messages getting loaded through mam
2762		conversation.resetLastMessageTransmitted();
2763		new Thread(new Runnable() {
2764			@Override
2765			public void run() {
2766				databaseBackend.deleteMessagesInConversation(conversation);
2767			}
2768		}).start();
2769	}
2770
2771	public void sendBlockRequest(final Blockable blockable) {
2772		if (blockable != null && blockable.getBlockedJid() != null) {
2773			final Jid jid = blockable.getBlockedJid();
2774			this.sendIqPacket(blockable.getAccount(), getIqGenerator().generateSetBlockRequest(jid), new OnIqPacketReceived() {
2775
2776				@Override
2777				public void onIqPacketReceived(final Account account, final IqPacket packet) {
2778					if (packet.getType() == IqPacket.TYPE.RESULT) {
2779						account.getBlocklist().add(jid);
2780						updateBlocklistUi(OnUpdateBlocklist.Status.BLOCKED);
2781					}
2782				}
2783			});
2784		}
2785	}
2786
2787	public void sendUnblockRequest(final Blockable blockable) {
2788		if (blockable != null && blockable.getJid() != null) {
2789			final Jid jid = blockable.getBlockedJid();
2790			this.sendIqPacket(blockable.getAccount(), getIqGenerator().generateSetUnblockRequest(jid), new OnIqPacketReceived() {
2791				@Override
2792				public void onIqPacketReceived(final Account account, final IqPacket packet) {
2793					if (packet.getType() == IqPacket.TYPE.RESULT) {
2794						account.getBlocklist().remove(jid);
2795						updateBlocklistUi(OnUpdateBlocklist.Status.UNBLOCKED);
2796					}
2797				}
2798			});
2799		}
2800	}
2801
2802	public interface OnAccountCreated {
2803		void onAccountCreated(Account account);
2804		void informUser(int r);
2805	}
2806
2807	public interface OnMoreMessagesLoaded {
2808		void onMoreMessagesLoaded(int count, Conversation conversation);
2809
2810		void informUser(int r);
2811	}
2812
2813	public interface OnAccountPasswordChanged {
2814		void onPasswordChangeSucceeded();
2815
2816		void onPasswordChangeFailed();
2817	}
2818
2819	public interface OnAffiliationChanged {
2820		void onAffiliationChangedSuccessful(Jid jid);
2821
2822		void onAffiliationChangeFailed(Jid jid, int resId);
2823	}
2824
2825	public interface OnRoleChanged {
2826		void onRoleChangedSuccessful(String nick);
2827
2828		void onRoleChangeFailed(String nick, int resid);
2829	}
2830
2831	public interface OnConversationUpdate {
2832		void onConversationUpdate();
2833	}
2834
2835	public interface OnAccountUpdate {
2836		void onAccountUpdate();
2837	}
2838
2839	public interface OnCaptchaRequested {
2840		void onCaptchaRequested(Account account,
2841					String id,
2842					Data data,
2843					Bitmap captcha);
2844	}
2845
2846	public interface OnRosterUpdate {
2847		void onRosterUpdate();
2848	}
2849
2850	public interface OnMucRosterUpdate {
2851		void onMucRosterUpdate();
2852	}
2853
2854	public interface OnConferenceConfigurationFetched {
2855		void onConferenceConfigurationFetched(Conversation conversation);
2856	}
2857
2858	public interface OnConferenceOptionsPushed {
2859		void onPushSucceeded();
2860
2861		void onPushFailed();
2862	}
2863
2864	public interface OnShowErrorToast {
2865		void onShowErrorToast(int resId);
2866	}
2867
2868	public class XmppConnectionBinder extends Binder {
2869		public XmppConnectionService getService() {
2870			return XmppConnectionService.this;
2871		}
2872	}
2873}