1package eu.siacs.conversations.services;
   2
   3import android.annotation.SuppressLint;
   4import android.annotation.TargetApi;
   5import android.app.AlarmManager;
   6import android.app.PendingIntent;
   7import android.app.Service;
   8import android.content.Context;
   9import android.content.Intent;
  10import android.content.IntentFilter;
  11import android.content.SharedPreferences;
  12import android.database.ContentObserver;
  13import android.graphics.Bitmap;
  14import android.media.AudioManager;
  15import android.net.ConnectivityManager;
  16import android.net.NetworkInfo;
  17import android.net.Uri;
  18import android.os.Binder;
  19import android.os.Build;
  20import android.os.Bundle;
  21import android.os.Environment;
  22import android.os.IBinder;
  23import android.os.ParcelFileDescriptor;
  24import android.os.PowerManager;
  25import android.os.PowerManager.WakeLock;
  26import android.os.SystemClock;
  27import android.preference.PreferenceManager;
  28import android.provider.ContactsContract;
  29import android.security.KeyChain;
  30import android.support.annotation.BoolRes;
  31import android.support.annotation.IntegerRes;
  32import android.support.v4.app.RemoteInput;
  33import android.util.DisplayMetrics;
  34import android.util.Log;
  35import android.util.LruCache;
  36import android.util.Pair;
  37
  38import net.java.otr4j.OtrException;
  39import net.java.otr4j.session.Session;
  40import net.java.otr4j.session.SessionID;
  41import net.java.otr4j.session.SessionImpl;
  42import net.java.otr4j.session.SessionStatus;
  43import net.ypresto.androidtranscoder.MediaTranscoder;
  44import net.ypresto.androidtranscoder.format.MediaFormatStrategy;
  45import net.ypresto.androidtranscoder.format.MediaFormatStrategyPresets;
  46
  47import org.openintents.openpgp.IOpenPgpService2;
  48import org.openintents.openpgp.util.OpenPgpApi;
  49import org.openintents.openpgp.util.OpenPgpServiceConnection;
  50
  51import java.io.FileDescriptor;
  52import java.io.FileNotFoundException;
  53import java.math.BigInteger;
  54import java.net.URL;
  55import java.security.SecureRandom;
  56import java.security.cert.CertificateException;
  57import java.security.cert.X509Certificate;
  58import java.util.ArrayList;
  59import java.util.Arrays;
  60import java.util.Collection;
  61import java.util.Collections;
  62import java.util.HashMap;
  63import java.util.HashSet;
  64import java.util.Hashtable;
  65import java.util.Iterator;
  66import java.util.List;
  67import java.util.ListIterator;
  68import java.util.Locale;
  69import java.util.Map;
  70import java.util.concurrent.CopyOnWriteArrayList;
  71import java.util.concurrent.atomic.AtomicBoolean;
  72import java.util.concurrent.atomic.AtomicLong;
  73
  74import de.duenndns.ssl.MemorizingTrustManager;
  75import eu.siacs.conversations.Config;
  76import eu.siacs.conversations.R;
  77import eu.siacs.conversations.crypto.PgpDecryptionService;
  78import eu.siacs.conversations.crypto.PgpEngine;
  79import eu.siacs.conversations.crypto.axolotl.AxolotlService;
  80import eu.siacs.conversations.crypto.axolotl.FingerprintStatus;
  81import eu.siacs.conversations.crypto.axolotl.XmppAxolotlMessage;
  82import eu.siacs.conversations.entities.Account;
  83import eu.siacs.conversations.entities.Blockable;
  84import eu.siacs.conversations.entities.Bookmark;
  85import eu.siacs.conversations.entities.Contact;
  86import eu.siacs.conversations.entities.Conversation;
  87import eu.siacs.conversations.entities.DownloadableFile;
  88import eu.siacs.conversations.entities.Message;
  89import eu.siacs.conversations.entities.MucOptions;
  90import eu.siacs.conversations.entities.MucOptions.OnRenameListener;
  91import eu.siacs.conversations.entities.Presence;
  92import eu.siacs.conversations.entities.PresenceTemplate;
  93import eu.siacs.conversations.entities.Roster;
  94import eu.siacs.conversations.entities.ServiceDiscoveryResult;
  95import eu.siacs.conversations.entities.Transferable;
  96import eu.siacs.conversations.entities.TransferablePlaceholder;
  97import eu.siacs.conversations.generator.AbstractGenerator;
  98import eu.siacs.conversations.generator.IqGenerator;
  99import eu.siacs.conversations.generator.MessageGenerator;
 100import eu.siacs.conversations.generator.PresenceGenerator;
 101import eu.siacs.conversations.http.HttpConnectionManager;
 102import eu.siacs.conversations.http.AesGcmURLStreamHandlerFactory;
 103import eu.siacs.conversations.parser.AbstractParser;
 104import eu.siacs.conversations.parser.IqParser;
 105import eu.siacs.conversations.parser.MessageParser;
 106import eu.siacs.conversations.parser.PresenceParser;
 107import eu.siacs.conversations.persistance.DatabaseBackend;
 108import eu.siacs.conversations.persistance.FileBackend;
 109import eu.siacs.conversations.ui.SettingsActivity;
 110import eu.siacs.conversations.ui.UiCallback;
 111import eu.siacs.conversations.ui.UiInformableCallback;
 112import eu.siacs.conversations.utils.ConversationsFileObserver;
 113import eu.siacs.conversations.utils.CryptoHelper;
 114import eu.siacs.conversations.utils.ExceptionHelper;
 115import eu.siacs.conversations.utils.MimeUtils;
 116import eu.siacs.conversations.utils.OnPhoneContactsLoadedListener;
 117import eu.siacs.conversations.utils.PRNGFixes;
 118import eu.siacs.conversations.utils.PhoneHelper;
 119import eu.siacs.conversations.utils.ReplacingSerialSingleThreadExecutor;
 120import eu.siacs.conversations.utils.Resolver;
 121import eu.siacs.conversations.utils.SerialSingleThreadExecutor;
 122import eu.siacs.conversations.xml.Namespace;
 123import eu.siacs.conversations.utils.XmppUri;
 124import eu.siacs.conversations.xml.Element;
 125import eu.siacs.conversations.xmpp.OnBindListener;
 126import eu.siacs.conversations.xmpp.OnContactStatusChanged;
 127import eu.siacs.conversations.xmpp.OnIqPacketReceived;
 128import eu.siacs.conversations.xmpp.OnKeyStatusUpdated;
 129import eu.siacs.conversations.xmpp.OnMessageAcknowledged;
 130import eu.siacs.conversations.xmpp.OnMessagePacketReceived;
 131import eu.siacs.conversations.xmpp.OnPresencePacketReceived;
 132import eu.siacs.conversations.xmpp.OnStatusChanged;
 133import eu.siacs.conversations.xmpp.OnUpdateBlocklist;
 134import eu.siacs.conversations.xmpp.Patches;
 135import eu.siacs.conversations.xmpp.XmppConnection;
 136import eu.siacs.conversations.xmpp.chatstate.ChatState;
 137import eu.siacs.conversations.xmpp.forms.Data;
 138import eu.siacs.conversations.xmpp.jid.InvalidJidException;
 139import eu.siacs.conversations.xmpp.jid.Jid;
 140import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
 141import eu.siacs.conversations.xmpp.jingle.OnJinglePacketReceived;
 142import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
 143import eu.siacs.conversations.xmpp.mam.MamReference;
 144import eu.siacs.conversations.xmpp.pep.Avatar;
 145import eu.siacs.conversations.xmpp.stanzas.IqPacket;
 146import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
 147import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
 148import me.leolin.shortcutbadger.ShortcutBadger;
 149
 150public class XmppConnectionService extends Service {
 151
 152	static {
 153		URL.setURLStreamHandlerFactory(new AesGcmURLStreamHandlerFactory());
 154	}
 155
 156	public static final String ACTION_REPLY_TO_CONVERSATION = "reply_to_conversations";
 157	public static final String ACTION_MARK_AS_READ = "mark_as_read";
 158	public static final String ACTION_CLEAR_NOTIFICATION = "clear_notification";
 159	public static final String ACTION_DISMISS_ERROR_NOTIFICATIONS = "dismiss_error";
 160	public static final String ACTION_TRY_AGAIN = "try_again";
 161	public static final String ACTION_IDLE_PING = "idle_ping";
 162	private static final String ACTION_MERGE_PHONE_CONTACTS = "merge_phone_contacts";
 163	public static final String ACTION_GCM_TOKEN_REFRESH = "gcm_token_refresh";
 164	public static final String ACTION_GCM_MESSAGE_RECEIVED = "gcm_message_received";
 165	private final SerialSingleThreadExecutor mFileAddingExecutor = new SerialSingleThreadExecutor();
 166	private final SerialSingleThreadExecutor mDatabaseExecutor = new SerialSingleThreadExecutor();
 167	private ReplacingSerialSingleThreadExecutor mContactMergerExecutor = new ReplacingSerialSingleThreadExecutor(true);
 168	private final IBinder mBinder = new XmppConnectionBinder();
 169	private final List<Conversation> conversations = new CopyOnWriteArrayList<>();
 170	private final IqGenerator mIqGenerator = new IqGenerator(this);
 171	private final List<String> mInProgressAvatarFetches = new ArrayList<>();
 172	private final HashSet<Jid> mLowPingTimeoutMode = new HashSet<>();
 173
 174	private long mLastActivity = 0;
 175
 176	public DatabaseBackend databaseBackend;
 177	private ContentObserver contactObserver = new ContentObserver(null) {
 178		@Override
 179		public void onChange(boolean selfChange) {
 180			super.onChange(selfChange);
 181			Intent intent = new Intent(getApplicationContext(),
 182					XmppConnectionService.class);
 183			intent.setAction(ACTION_MERGE_PHONE_CONTACTS);
 184			startService(intent);
 185		}
 186	};
 187	private FileBackend fileBackend = new FileBackend(this);
 188	private MemorizingTrustManager mMemorizingTrustManager;
 189	private NotificationService mNotificationService = new NotificationService(this);
 190	private ShortcutService mShortcutService = new ShortcutService(this);
 191	private AtomicBoolean mInitialAddressbookSyncCompleted = new AtomicBoolean(false);
 192	private OnMessagePacketReceived mMessageParser = new MessageParser(this);
 193	private OnPresencePacketReceived mPresenceParser = new PresenceParser(this);
 194	private IqParser mIqParser = new IqParser(this);
 195	private OnIqPacketReceived mDefaultIqHandler = new OnIqPacketReceived() {
 196		@Override
 197		public void onIqPacketReceived(Account account, IqPacket packet) {
 198			if (packet.getType() != IqPacket.TYPE.RESULT) {
 199				Element error = packet.findChild("error");
 200				String text = error != null ? error.findChildContent("text") : null;
 201				if (text != null) {
 202					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": received iq error - " + text);
 203				}
 204			}
 205		}
 206	};
 207	private MessageGenerator mMessageGenerator = new MessageGenerator(this);
 208	private PresenceGenerator mPresenceGenerator = new PresenceGenerator(this);
 209	private List<Account> accounts;
 210	private JingleConnectionManager mJingleConnectionManager = new JingleConnectionManager(
 211			this);
 212	public OnContactStatusChanged onContactStatusChanged = new OnContactStatusChanged() {
 213
 214		@Override
 215		public void onContactStatusChanged(Contact contact, boolean online) {
 216			Conversation conversation = find(getConversations(), contact);
 217			if (conversation != null) {
 218				if (online) {
 219					conversation.endOtrIfNeeded();
 220					if (contact.getPresences().size() == 1) {
 221						sendUnsentMessages(conversation);
 222					}
 223				} else {
 224					//check if the resource we are haveing a conversation with is still online
 225					if (conversation.hasValidOtrSession()) {
 226						String otrResource = conversation.getOtrSession().getSessionID().getUserID();
 227						if (!(Arrays.asList(contact.getPresences().toResourceArray()).contains(otrResource))) {
 228							conversation.endOtrIfNeeded();
 229						}
 230					}
 231				}
 232			}
 233		}
 234	};
 235	private HttpConnectionManager mHttpConnectionManager = new HttpConnectionManager(
 236			this);
 237	private AvatarService mAvatarService = new AvatarService(this);
 238	private MessageArchiveService mMessageArchiveService = new MessageArchiveService(this);
 239	private PushManagementService mPushManagementService = new PushManagementService(this);
 240	private OnConversationUpdate mOnConversationUpdate = null;
 241
 242
 243	private final ConversationsFileObserver fileObserver = new ConversationsFileObserver(
 244			Environment.getExternalStorageDirectory().getAbsolutePath()
 245	) {
 246		@Override
 247		public void onEvent(int event, String path) {
 248			markFileDeleted(path);
 249		}
 250	};
 251	private final OnJinglePacketReceived jingleListener = new OnJinglePacketReceived() {
 252
 253		@Override
 254		public void onJinglePacketReceived(Account account, JinglePacket packet) {
 255			mJingleConnectionManager.deliverPacket(account, packet);
 256		}
 257	};
 258	private final OnMessageAcknowledged mOnMessageAcknowledgedListener = new OnMessageAcknowledged() {
 259
 260		@Override
 261		public void onMessageAcknowledged(Account account, String uuid) {
 262			for (final Conversation conversation : getConversations()) {
 263				if (conversation.getAccount() == account) {
 264					Message message = conversation.findUnsentMessageWithUuid(uuid);
 265					if (message != null) {
 266						markMessage(message, Message.STATUS_SEND);
 267					}
 268				}
 269			}
 270		}
 271	};
 272	private int convChangedListenerCount = 0;
 273	private OnShowErrorToast mOnShowErrorToast = null;
 274	private int showErrorToastListenerCount = 0;
 275	private int unreadCount = -1;
 276	private OnAccountUpdate mOnAccountUpdate = null;
 277	private OnCaptchaRequested mOnCaptchaRequested = null;
 278	private int accountChangedListenerCount = 0;
 279	private int captchaRequestedListenerCount = 0;
 280	private OnRosterUpdate mOnRosterUpdate = null;
 281	private OnUpdateBlocklist mOnUpdateBlocklist = null;
 282	private int updateBlocklistListenerCount = 0;
 283	private int rosterChangedListenerCount = 0;
 284	private OnMucRosterUpdate mOnMucRosterUpdate = null;
 285	private int mucRosterChangedListenerCount = 0;
 286	private OnKeyStatusUpdated mOnKeyStatusUpdated = null;
 287	private int keyStatusUpdatedListenerCount = 0;
 288	private AtomicLong mLastExpiryRun = new AtomicLong(0);
 289	private SecureRandom mRandom;
 290	private LruCache<Pair<String,String>,ServiceDiscoveryResult> discoCache = new LruCache<>(20);
 291	private final OnBindListener mOnBindListener = new OnBindListener() {
 292
 293		@Override
 294		public void onBind(final Account account) {
 295			synchronized (mInProgressAvatarFetches) {
 296				for (Iterator<String> iterator = mInProgressAvatarFetches.iterator(); iterator.hasNext(); ) {
 297					final String KEY = iterator.next();
 298					if (KEY.startsWith(account.getJid().toBareJid() + "_")) {
 299						iterator.remove();
 300					}
 301				}
 302			}
 303			if (account.setOption(Account.OPTION_LOGGED_IN_SUCCESSFULLY,true)) {
 304				databaseBackend.updateAccount(account);
 305			}
 306			account.getRoster().clearPresences();
 307			mJingleConnectionManager.cancelInTransmission();
 308			fetchRosterFromServer(account);
 309			fetchBookmarks(account);
 310			sendPresence(account);
 311			if (mPushManagementService.available(account)) {
 312				mPushManagementService.registerPushTokenOnServer(account);
 313			}
 314			connectMultiModeConversations(account);
 315			syncDirtyContacts(account);
 316		}
 317	};
 318	private OnStatusChanged statusListener = new OnStatusChanged() {
 319
 320		@Override
 321		public void onStatusChanged(final Account account) {
 322			XmppConnection connection = account.getXmppConnection();
 323			if (mOnAccountUpdate != null) {
 324				mOnAccountUpdate.onAccountUpdate();
 325			}
 326			if (account.getStatus() == Account.State.ONLINE) {
 327				synchronized (mLowPingTimeoutMode) {
 328					if (mLowPingTimeoutMode.remove(account.getJid().toBareJid())) {
 329						Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": leaving low ping timeout mode");
 330					}
 331				}
 332				if (account.setShowErrorNotification(true)) {
 333					databaseBackend.updateAccount(account);
 334				}
 335				mMessageArchiveService.executePendingQueries(account);
 336				if (connection != null && connection.getFeatures().csi()) {
 337					if (checkListeners()) {
 338						Log.d(Config.LOGTAG, account.getJid().toBareJid() + " sending csi//inactive");
 339						connection.sendInactive();
 340					} else {
 341						Log.d(Config.LOGTAG, account.getJid().toBareJid() + " sending csi//active");
 342						connection.sendActive();
 343					}
 344				}
 345				List<Conversation> conversations = getConversations();
 346				for (Conversation conversation : conversations) {
 347					if (conversation.getAccount() == account
 348							&& !account.pendingConferenceJoins.contains(conversation)) {
 349						if (!conversation.startOtrIfNeeded()) {
 350							Log.d(Config.LOGTAG,account.getJid().toBareJid()+": couldn't start OTR with "+conversation.getContact().getJid()+" when needed");
 351						}
 352						sendUnsentMessages(conversation);
 353					}
 354				}
 355				for (Conversation conversation : account.pendingConferenceLeaves) {
 356					leaveMuc(conversation);
 357				}
 358				account.pendingConferenceLeaves.clear();
 359				for (Conversation conversation : account.pendingConferenceJoins) {
 360					joinMuc(conversation);
 361				}
 362				account.pendingConferenceJoins.clear();
 363				scheduleWakeUpCall(Config.PING_MAX_INTERVAL, account.getUuid().hashCode());
 364			} else if (account.getStatus() == Account.State.OFFLINE || account.getStatus() == Account.State.DISABLED) {
 365				resetSendingToWaiting(account);
 366				if (!account.isOptionSet(Account.OPTION_DISABLED) && isInLowPingTimeoutMode(account)) {
 367					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": went into offline state during low ping mode. reconnecting now");
 368					reconnectAccount(account, true, false);
 369				} else {
 370					int timeToReconnect = mRandom.nextInt(10) + 2;
 371					scheduleWakeUpCall(timeToReconnect, account.getUuid().hashCode());
 372				}
 373			} else if (account.getStatus() == Account.State.REGISTRATION_SUCCESSFUL) {
 374				databaseBackend.updateAccount(account);
 375				reconnectAccount(account, true, false);
 376			} else if (account.getStatus() != Account.State.CONNECTING && account.getStatus() != Account.State.NO_INTERNET) {
 377				resetSendingToWaiting(account);
 378				if (connection != null && account.getStatus().isAttemptReconnect()) {
 379					final int next = connection.getTimeToNextAttempt();
 380					final boolean lowPingTimeoutMode = isInLowPingTimeoutMode(account);
 381					if (next <= 0) {
 382						Log.d(Config.LOGTAG, account.getJid().toBareJid()+": error connecting account. reconnecting now. lowPingTimeout="+Boolean.toString(lowPingTimeoutMode));
 383						reconnectAccount(account, true, false);
 384					} else {
 385						final int attempt = connection.getAttempt() + 1;
 386						Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": error connecting account. try again in " + next + "s for the " + attempt+ " time. lowPingTimeout="+Boolean.toString(lowPingTimeoutMode));
 387						scheduleWakeUpCall(next, account.getUuid().hashCode());
 388					}
 389				}
 390			}
 391			getNotificationService().updateErrorNotification();
 392		}
 393	};
 394
 395	private boolean isInLowPingTimeoutMode(Account account) {
 396		synchronized (mLowPingTimeoutMode) {
 397			return mLowPingTimeoutMode.contains(account.getJid().toBareJid());
 398		}
 399	}
 400
 401	private OpenPgpServiceConnection pgpServiceConnection;
 402	private PgpEngine mPgpEngine = null;
 403	private WakeLock wakeLock;
 404	private PowerManager pm;
 405	private LruCache<String, Bitmap> mBitmapCache;
 406	private EventReceiver mEventReceiver = new EventReceiver();
 407
 408	private boolean mRestoredFromDatabase = false;
 409
 410	private static String generateFetchKey(Account account, final Avatar avatar) {
 411		return account.getJid().toBareJid() + "_" + avatar.owner + "_" + avatar.sha1sum;
 412	}
 413
 414	public boolean areMessagesInitialized() {
 415		return this.mRestoredFromDatabase;
 416	}
 417
 418	public PgpEngine getPgpEngine() {
 419		if (!Config.supportOpenPgp()) {
 420			return null;
 421		} else if (pgpServiceConnection != null && pgpServiceConnection.isBound()) {
 422			if (this.mPgpEngine == null) {
 423				this.mPgpEngine = new PgpEngine(new OpenPgpApi(
 424						getApplicationContext(),
 425						pgpServiceConnection.getService()), this);
 426			}
 427			return mPgpEngine;
 428		} else {
 429			return null;
 430		}
 431
 432	}
 433
 434	public OpenPgpApi getOpenPgpApi() {
 435		if (!Config.supportOpenPgp()) {
 436			return null;
 437		} else if (pgpServiceConnection != null && pgpServiceConnection.isBound()) {
 438			return new OpenPgpApi(this, pgpServiceConnection.getService());
 439		} else {
 440			return null;
 441		}
 442	}
 443
 444	public FileBackend getFileBackend() {
 445		return this.fileBackend;
 446	}
 447
 448	public AvatarService getAvatarService() {
 449		return this.mAvatarService;
 450	}
 451
 452	public void attachLocationToConversation(final Conversation conversation,
 453											 final Uri uri,
 454											 final UiCallback<Message> callback) {
 455		int encryption = conversation.getNextEncryption();
 456		if (encryption == Message.ENCRYPTION_PGP) {
 457			encryption = Message.ENCRYPTION_DECRYPTED;
 458		}
 459		Message message = new Message(conversation, uri.toString(), encryption);
 460		if (conversation.getNextCounterpart() != null) {
 461			message.setCounterpart(conversation.getNextCounterpart());
 462		}
 463		if (encryption == Message.ENCRYPTION_DECRYPTED) {
 464			getPgpEngine().encrypt(message, callback);
 465		} else {
 466			callback.success(message);
 467		}
 468	}
 469
 470	public void attachFileToConversation(final Conversation conversation,
 471										 final Uri uri,
 472										 final UiCallback<Message> callback) {
 473		if (FileBackend.weOwnFile(this, uri)) {
 474			Log.d(Config.LOGTAG,"trying to attach file that belonged to us");
 475			callback.error(R.string.security_error_invalid_file_access, null);
 476			return;
 477		}
 478		final Message message;
 479		if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 480			message = new Message(conversation, "", Message.ENCRYPTION_DECRYPTED);
 481		} else {
 482			message = new Message(conversation, "", conversation.getNextEncryption());
 483		}
 484		message.setCounterpart(conversation.getNextCounterpart());
 485		message.setType(Message.TYPE_FILE);
 486		mFileAddingExecutor.execute(new Runnable() {
 487
 488			private void processAsFile() {
 489				final String path = getFileBackend().getOriginalPath(uri);
 490				if (path != null) {
 491					message.setRelativeFilePath(path);
 492					getFileBackend().updateFileParams(message);
 493					if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 494						getPgpEngine().encrypt(message, callback);
 495					} else {
 496						callback.success(message);
 497					}
 498				} else {
 499					try {
 500						getFileBackend().copyFileToPrivateStorage(message, uri);
 501						getFileBackend().updateFileParams(message);
 502						if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 503							final PgpEngine pgpEngine = getPgpEngine();
 504							if (pgpEngine != null) {
 505								pgpEngine.encrypt(message, callback);
 506							} else if (callback != null) {
 507								callback.error(R.string.unable_to_connect_to_keychain, null);
 508							}
 509						} else {
 510							callback.success(message);
 511						}
 512					} catch (FileBackend.FileCopyException e) {
 513						callback.error(e.getResId(), message);
 514					}
 515				}
 516			}
 517
 518			private void processAsVideo() throws FileNotFoundException {
 519				Log.d(Config.LOGTAG,"processing file as video");
 520				message.setRelativeFilePath(message.getUuid() + ".mp4");
 521				final DownloadableFile file = getFileBackend().getFile(message);
 522				final int runtime = getFileBackend().getMediaRuntime(uri);
 523				MediaFormatStrategy formatStrategy = runtime >= 8000 ? MediaFormatStrategyPresets.createExportPreset960x540Strategy() : MediaFormatStrategyPresets.createAndroid720pStrategy();
 524				Log.d(Config.LOGTAG,"runtime "+runtime);
 525				file.getParentFile().mkdirs();
 526				ParcelFileDescriptor parcelFileDescriptor = getContentResolver().openFileDescriptor(uri, "r");
 527				FileDescriptor fileDescriptor = parcelFileDescriptor.getFileDescriptor();
 528				final ArrayList<Integer> progressTracker = new ArrayList<>();
 529				final UiInformableCallback<Message> informableCallback;
 530				if (callback instanceof UiInformableCallback) {
 531					informableCallback = (UiInformableCallback<Message>) callback;
 532				} else {
 533					informableCallback = null;
 534				}
 535				MediaTranscoder.Listener listener = new MediaTranscoder.Listener() {
 536					@Override
 537					public void onTranscodeProgress(double progress) {
 538						int p = ((int) Math.round(progress * 100) / 20) * 20;
 539						if (!progressTracker.contains(p) && p != 100 && p != 0) {
 540							progressTracker.add(p);
 541							if (informableCallback != null) {
 542								informableCallback.inform(getString(R.string.transcoding_video_progress, String.valueOf(p)));
 543							}
 544						}
 545					}
 546
 547					@Override
 548					public void onTranscodeCompleted() {
 549						if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 550							getPgpEngine().encrypt(message, callback);
 551						} else {
 552							callback.success(message);
 553						}
 554					}
 555
 556					@Override
 557					public void onTranscodeCanceled() {
 558						processAsFile();
 559					}
 560
 561					@Override
 562					public void onTranscodeFailed(Exception e) {
 563						Log.d(Config.LOGTAG,"video transcoding failed "+e.getMessage());
 564						processAsFile();
 565					}
 566				};
 567				MediaTranscoder.getInstance().transcodeVideo(fileDescriptor, file.getAbsolutePath(), formatStrategy, listener);
 568			}
 569
 570			@Override
 571			public void run() {
 572				final String mimeType = MimeUtils.guessMimeTypeFromUri(XmppConnectionService.this, uri);
 573				if (mimeType != null && mimeType.startsWith("video/") && Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
 574					try {
 575						processAsVideo();
 576					} catch (Throwable e) {
 577						processAsFile();
 578					}
 579				} else {
 580					processAsFile();
 581				}
 582
 583			}
 584		});
 585	}
 586
 587	public void attachImageToConversation(final Conversation conversation, final Uri uri, final UiCallback<Message> callback) {
 588		if (FileBackend.weOwnFile(this, uri)) {
 589			Log.d(Config.LOGTAG,"trying to attach file that belonged to us");
 590			callback.error(R.string.security_error_invalid_file_access, null);
 591			return;
 592		}
 593
 594		final String mimeType = MimeUtils.guessMimeTypeFromUri(this, uri);
 595		final String compressPictures = getCompressPicturesPreference();
 596
 597		if ("never".equals(compressPictures)
 598				|| ("auto".equals(compressPictures) && getFileBackend().useImageAsIs(uri))
 599				|| (mimeType != null && mimeType.endsWith("/gif"))) {
 600			Log.d(Config.LOGTAG,conversation.getAccount().getJid().toBareJid()+ ": not compressing picture. sending as file");
 601			attachFileToConversation(conversation, uri, callback);
 602			return;
 603		}
 604		final Message message;
 605		if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 606			message = new Message(conversation, "", Message.ENCRYPTION_DECRYPTED);
 607		} else {
 608			message = new Message(conversation, "", conversation.getNextEncryption());
 609		}
 610		message.setCounterpart(conversation.getNextCounterpart());
 611		message.setType(Message.TYPE_IMAGE);
 612		mFileAddingExecutor.execute(new Runnable() {
 613
 614			@Override
 615			public void run() {
 616				try {
 617					getFileBackend().copyImageToPrivateStorage(message, uri);
 618					if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 619						final PgpEngine pgpEngine = getPgpEngine();
 620						if (pgpEngine != null) {
 621							pgpEngine.encrypt(message, callback);
 622						} else if (callback != null){
 623							callback.error(R.string.unable_to_connect_to_keychain, null);
 624						}
 625					} else {
 626						callback.success(message);
 627					}
 628				} catch (final FileBackend.FileCopyException e) {
 629					callback.error(e.getResId(), message);
 630				}
 631			}
 632		});
 633	}
 634
 635	public Conversation find(Bookmark bookmark) {
 636		return find(bookmark.getAccount(), bookmark.getJid());
 637	}
 638
 639	public Conversation find(final Account account, final Jid jid) {
 640		return find(getConversations(), account, jid);
 641	}
 642
 643	@Override
 644	public int onStartCommand(Intent intent, int flags, int startId) {
 645		final String action = intent == null ? null : intent.getAction();
 646		String pushedAccountHash = null;
 647		boolean interactive = false;
 648		if (action != null) {
 649			final String uuid = intent.getStringExtra("uuid");
 650			final Conversation c = findConversationByUuid(uuid);
 651			switch (action) {
 652				case ConnectivityManager.CONNECTIVITY_ACTION:
 653					if (hasInternetConnection() && Config.RESET_ATTEMPT_COUNT_ON_NETWORK_CHANGE) {
 654						resetAllAttemptCounts(true, false);
 655					}
 656					break;
 657				case ACTION_MERGE_PHONE_CONTACTS:
 658					if (mRestoredFromDatabase) {
 659						loadPhoneContacts();
 660					}
 661					return START_STICKY;
 662				case Intent.ACTION_SHUTDOWN:
 663					logoutAndSave(true);
 664					return START_NOT_STICKY;
 665				case ACTION_CLEAR_NOTIFICATION:
 666					if (c != null) {
 667						mNotificationService.clear(c);
 668					} else {
 669						mNotificationService.clear();
 670					}
 671					break;
 672				case ACTION_DISMISS_ERROR_NOTIFICATIONS:
 673					dismissErrorNotifications();
 674					break;
 675				case ACTION_TRY_AGAIN:
 676					resetAllAttemptCounts(false, true);
 677					interactive = true;
 678					break;
 679				case ACTION_REPLY_TO_CONVERSATION:
 680					Bundle remoteInput = RemoteInput.getResultsFromIntent(intent);
 681					if (remoteInput != null && c != null) {
 682						final CharSequence body = remoteInput.getCharSequence("text_reply");
 683						if (body != null && body.length() > 0) {
 684							directReply(c, body.toString(),intent.getBooleanExtra("dismiss_notification",false));
 685						}
 686					}
 687					break;
 688				case ACTION_MARK_AS_READ:
 689					if (c != null) {
 690						sendReadMarker(c);
 691					} else {
 692						Log.d(Config.LOGTAG,"received mark read intent for unknown conversation ("+uuid+")");
 693					}
 694					break;
 695				case AudioManager.RINGER_MODE_CHANGED_ACTION:
 696					if (dndOnSilentMode()) {
 697						refreshAllPresences();
 698					}
 699					break;
 700				case Intent.ACTION_SCREEN_ON:
 701					deactivateGracePeriod();
 702				case Intent.ACTION_SCREEN_OFF:
 703					if (awayWhenScreenOff()) {
 704						refreshAllPresences();
 705					}
 706					break;
 707				case ACTION_GCM_TOKEN_REFRESH:
 708					refreshAllGcmTokens();
 709					break;
 710				case ACTION_IDLE_PING:
 711					if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 712						scheduleNextIdlePing();
 713					}
 714					break;
 715				case ACTION_GCM_MESSAGE_RECEIVED:
 716					Log.d(Config.LOGTAG,"gcm push message arrived in service. extras="+intent.getExtras());
 717					pushedAccountHash = intent.getStringExtra("account");
 718					break;
 719			}
 720		}
 721		synchronized (this) {
 722			this.wakeLock.acquire();
 723			boolean pingNow = ConnectivityManager.CONNECTIVITY_ACTION.equals(action);
 724			HashSet<Account> pingCandidates = new HashSet<>();
 725			for (Account account : accounts) {
 726				pingNow |= processAccountState(account,
 727						interactive,
 728						"ui".equals(action),
 729						CryptoHelper.getAccountFingerprint(account).equals(pushedAccountHash),
 730						pingCandidates);
 731			}
 732			if (pingNow) {
 733				for (Account account : pingCandidates) {
 734					final boolean lowTimeout = isInLowPingTimeoutMode(account);
 735					account.getXmppConnection().sendPing();
 736					Log.d(Config.LOGTAG, account.getJid().toBareJid() + " send ping (action=" + action + ",lowTimeout=" + Boolean.toString(lowTimeout) + ")");
 737					scheduleWakeUpCall(lowTimeout ? Config.LOW_PING_TIMEOUT : Config.PING_TIMEOUT, account.getUuid().hashCode());
 738				}
 739			}
 740			if (wakeLock.isHeld()) {
 741				try {
 742					wakeLock.release();
 743				} catch (final RuntimeException ignored) {
 744				}
 745			}
 746		}
 747		if (SystemClock.elapsedRealtime() - mLastExpiryRun.get() >= Config.EXPIRY_INTERVAL) {
 748			expireOldMessages();
 749		}
 750		return START_STICKY;
 751	}
 752
 753	private boolean processAccountState(Account account, boolean interactive, boolean isUiAction, boolean isAccountPushed, HashSet<Account> pingCandidates) {
 754		boolean pingNow = false;
 755		if (account.getStatus().isAttemptReconnect()) {
 756			if (!hasInternetConnection()) {
 757				account.setStatus(Account.State.NO_INTERNET);
 758				if (statusListener != null) {
 759					statusListener.onStatusChanged(account);
 760				}
 761			} else {
 762				if (account.getStatus() == Account.State.NO_INTERNET) {
 763					account.setStatus(Account.State.OFFLINE);
 764					if (statusListener != null) {
 765						statusListener.onStatusChanged(account);
 766					}
 767				}
 768				if (account.getStatus() == Account.State.ONLINE) {
 769					synchronized (mLowPingTimeoutMode) {
 770						long lastReceived = account.getXmppConnection().getLastPacketReceived();
 771						long lastSent = account.getXmppConnection().getLastPingSent();
 772						long pingInterval = isUiAction ? Config.PING_MIN_INTERVAL * 1000 : Config.PING_MAX_INTERVAL * 1000;
 773						long msToNextPing = (Math.max(lastReceived, lastSent) + pingInterval) - SystemClock.elapsedRealtime();
 774						int pingTimeout = mLowPingTimeoutMode.contains(account.getJid().toBareJid()) ? Config.LOW_PING_TIMEOUT * 1000 : Config.PING_TIMEOUT * 1000;
 775						long pingTimeoutIn = (lastSent + pingTimeout) - SystemClock.elapsedRealtime();
 776						if (lastSent > lastReceived) {
 777							if (pingTimeoutIn < 0) {
 778								Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": ping timeout");
 779								this.reconnectAccount(account, true, interactive);
 780							} else {
 781								int secs = (int) (pingTimeoutIn / 1000);
 782								this.scheduleWakeUpCall(secs, account.getUuid().hashCode());
 783							}
 784						} else {
 785							pingCandidates.add(account);
 786							if (isAccountPushed) {
 787								pingNow = true;
 788								if (mLowPingTimeoutMode.add(account.getJid().toBareJid())) {
 789									Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": entering low ping timeout mode");
 790								}
 791							} else if (msToNextPing <= 0) {
 792								pingNow = true;
 793							} else {
 794								this.scheduleWakeUpCall((int) (msToNextPing / 1000), account.getUuid().hashCode());
 795								if (mLowPingTimeoutMode.remove(account.getJid().toBareJid())) {
 796									Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": leaving low ping timeout mode");
 797								}
 798							}
 799						}
 800					}
 801				} else if (account.getStatus() == Account.State.OFFLINE) {
 802					reconnectAccount(account, true, interactive);
 803				} else if (account.getStatus() == Account.State.CONNECTING) {
 804					long secondsSinceLastConnect = (SystemClock.elapsedRealtime() - account.getXmppConnection().getLastConnect()) / 1000;
 805					long secondsSinceLastDisco = (SystemClock.elapsedRealtime() - account.getXmppConnection().getLastDiscoStarted()) / 1000;
 806					long discoTimeout = Config.CONNECT_DISCO_TIMEOUT - secondsSinceLastDisco;
 807					long timeout = Config.CONNECT_TIMEOUT - secondsSinceLastConnect;
 808					if (timeout < 0) {
 809						Log.d(Config.LOGTAG, account.getJid() + ": time out during connect reconnecting (secondsSinceLast="+secondsSinceLastConnect+")");
 810						account.getXmppConnection().resetAttemptCount(false);
 811						reconnectAccount(account, true, interactive);
 812					} else if (discoTimeout < 0) {
 813						account.getXmppConnection().sendDiscoTimeout();
 814						scheduleWakeUpCall((int) Math.min(timeout,discoTimeout), account.getUuid().hashCode());
 815					} else {
 816						scheduleWakeUpCall((int) Math.min(timeout,discoTimeout), account.getUuid().hashCode());
 817					}
 818				} else {
 819					if (account.getXmppConnection().getTimeToNextAttempt() <= 0) {
 820						reconnectAccount(account, true, interactive);
 821					}
 822				}
 823			}
 824		}
 825		return pingNow;
 826	}
 827
 828	public boolean isDataSaverDisabled() {
 829		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 830			ConnectivityManager connectivityManager = (ConnectivityManager) getSystemService(CONNECTIVITY_SERVICE);
 831			return !connectivityManager.isActiveNetworkMetered()
 832					|| connectivityManager.getRestrictBackgroundStatus() == ConnectivityManager.RESTRICT_BACKGROUND_STATUS_DISABLED;
 833		} else {
 834			return true;
 835		}
 836	}
 837
 838	private void directReply(Conversation conversation, String body, final boolean dismissAfterReply) {
 839		Message message = new Message(conversation,body,conversation.getNextEncryption());
 840		message.markUnread();
 841		if (message.getEncryption() == Message.ENCRYPTION_PGP) {
 842			getPgpEngine().encrypt(message, new UiCallback<Message>() {
 843				@Override
 844				public void success(Message message) {
 845					message.setEncryption(Message.ENCRYPTION_DECRYPTED);
 846					sendMessage(message);
 847					if (dismissAfterReply) {
 848						markRead(message.getConversation(),true);
 849					} else {
 850						mNotificationService.pushFromDirectReply(message);
 851					}
 852				}
 853
 854				@Override
 855				public void error(int errorCode, Message object) {
 856
 857				}
 858
 859				@Override
 860				public void userInputRequried(PendingIntent pi, Message object) {
 861
 862				}
 863			});
 864		} else {
 865			sendMessage(message);
 866			if (dismissAfterReply) {
 867				markRead(conversation,true);
 868			} else {
 869				mNotificationService.pushFromDirectReply(message);
 870			}
 871		}
 872	}
 873
 874	private boolean dndOnSilentMode() {
 875		return getBooleanPreference(SettingsActivity.DND_ON_SILENT_MODE, R.bool.dnd_on_silent_mode);
 876	}
 877
 878	private boolean manuallyChangePresence() {
 879		return getBooleanPreference(SettingsActivity.MANUALLY_CHANGE_PRESENCE, R.bool.manually_change_presence);
 880	}
 881
 882	private boolean treatVibrateAsSilent() {
 883		return getBooleanPreference(SettingsActivity.TREAT_VIBRATE_AS_SILENT, R.bool.treat_vibrate_as_silent);
 884	}
 885
 886	private boolean awayWhenScreenOff() {
 887		return getBooleanPreference(SettingsActivity.AWAY_WHEN_SCREEN_IS_OFF,R.bool.away_when_screen_off);
 888	}
 889
 890	private String getCompressPicturesPreference() {
 891		return getPreferences().getString("picture_compression", getResources().getString(R.string.picture_compression));
 892	}
 893
 894	private Presence.Status getTargetPresence() {
 895		if (dndOnSilentMode() && isPhoneSilenced()) {
 896			return Presence.Status.DND;
 897		} else if (awayWhenScreenOff() && !isInteractive()) {
 898			return Presence.Status.AWAY;
 899		} else {
 900			return Presence.Status.ONLINE;
 901		}
 902	}
 903
 904	@SuppressLint("NewApi")
 905	@SuppressWarnings("deprecation")
 906	public boolean isInteractive() {
 907		final PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 908
 909		final boolean isScreenOn;
 910		if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
 911			isScreenOn = pm.isScreenOn();
 912		} else {
 913			isScreenOn = pm.isInteractive();
 914		}
 915		return isScreenOn;
 916	}
 917
 918	private boolean isPhoneSilenced() {
 919		AudioManager audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
 920		try {
 921			if (treatVibrateAsSilent()) {
 922				return audioManager.getRingerMode() != AudioManager.RINGER_MODE_NORMAL;
 923			} else {
 924				return audioManager.getRingerMode() == AudioManager.RINGER_MODE_SILENT;
 925			}
 926		} catch (Throwable throwable) {
 927			Log.d(Config.LOGTAG,"platform bug in isPhoneSilenced ("+ throwable.getMessage()+")");
 928			return false;
 929		}
 930	}
 931
 932	private void resetAllAttemptCounts(boolean reallyAll, boolean retryImmediately) {
 933		Log.d(Config.LOGTAG, "resetting all attempt counts");
 934		for (Account account : accounts) {
 935			if (account.hasErrorStatus() || reallyAll) {
 936				final XmppConnection connection = account.getXmppConnection();
 937				if (connection != null) {
 938					connection.resetAttemptCount(retryImmediately);
 939				}
 940			}
 941			if (account.setShowErrorNotification(true)) {
 942				databaseBackend.updateAccount(account);
 943			}
 944		}
 945		mNotificationService.updateErrorNotification();
 946	}
 947
 948	private void dismissErrorNotifications() {
 949		for (final Account account : this.accounts) {
 950			if (account.hasErrorStatus()) {
 951				Log.d(Config.LOGTAG,account.getJid().toBareJid()+": dismissing error notification");
 952				if (account.setShowErrorNotification(false)) {
 953					databaseBackend.updateAccount(account);
 954				}
 955			}
 956		}
 957	}
 958
 959	private void expireOldMessages() {
 960		expireOldMessages(false);
 961	}
 962
 963	public void expireOldMessages(final boolean resetHasMessagesLeftOnServer) {
 964		mLastExpiryRun.set(SystemClock.elapsedRealtime());
 965		mDatabaseExecutor.execute(new Runnable() {
 966			@Override
 967			public void run() {
 968				long timestamp = getAutomaticMessageDeletionDate();
 969				if (timestamp > 0) {
 970					databaseBackend.expireOldMessages(timestamp);
 971					synchronized (XmppConnectionService.this.conversations) {
 972						for (Conversation conversation : XmppConnectionService.this.conversations) {
 973							conversation.expireOldMessages(timestamp);
 974							if (resetHasMessagesLeftOnServer) {
 975								conversation.messagesLoaded.set(true);
 976								conversation.setHasMessagesLeftOnServer(true);
 977							}
 978						}
 979					}
 980					updateConversationUi();
 981				}
 982			}
 983		});
 984	}
 985
 986	public boolean hasInternetConnection() {
 987		ConnectivityManager cm = (ConnectivityManager) getApplicationContext()
 988				.getSystemService(Context.CONNECTIVITY_SERVICE);
 989		NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
 990		return activeNetwork != null && activeNetwork.isConnected();
 991	}
 992
 993	@SuppressLint("TrulyRandom")
 994	@Override
 995	public void onCreate() {
 996		ExceptionHelper.init(getApplicationContext());
 997		PRNGFixes.apply();
 998		Resolver.registerXmppConnectionService(this);
 999		this.mRandom = new SecureRandom();
1000		updateMemorizingTrustmanager();
1001		final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024);
1002		final int cacheSize = maxMemory / 8;
1003		this.mBitmapCache = new LruCache<String, Bitmap>(cacheSize) {
1004			@Override
1005			protected int sizeOf(final String key, final Bitmap bitmap) {
1006				return bitmap.getByteCount() / 1024;
1007			}
1008		};
1009
1010		Log.d(Config.LOGTAG,"initializing database...");
1011		this.databaseBackend = DatabaseBackend.getInstance(getApplicationContext());
1012		Log.d(Config.LOGTAG,"restoring accounts...");
1013		this.accounts = databaseBackend.getAccounts();
1014
1015		if (this.accounts.size() == 0 && Arrays.asList("Sony","Sony Ericsson").contains(Build.MANUFACTURER)) {
1016			getPreferences().edit().putBoolean(SettingsActivity.KEEP_FOREGROUND_SERVICE,true).commit();
1017			Log.d(Config.LOGTAG,Build.MANUFACTURER+" is on blacklist. enabling foreground service");
1018		}
1019
1020		restoreFromDatabase();
1021
1022		getContentResolver().registerContentObserver(ContactsContract.Contacts.CONTENT_URI, true, contactObserver);
1023		new Thread(new Runnable() {
1024			@Override
1025			public void run() {
1026				fileObserver.startWatching();
1027			}
1028		}).start();
1029		if (Config.supportOpenPgp()) {
1030			this.pgpServiceConnection = new OpenPgpServiceConnection(getApplicationContext(), "org.sufficientlysecure.keychain", new OpenPgpServiceConnection.OnBound() {
1031				@Override
1032				public void onBound(IOpenPgpService2 service) {
1033					for (Account account : accounts) {
1034						final PgpDecryptionService pgp = account.getPgpDecryptionService();
1035						if(pgp != null) {
1036							pgp.continueDecryption(true);
1037						}
1038					}
1039				}
1040
1041				@Override
1042				public void onError(Exception e) {
1043				}
1044			});
1045			this.pgpServiceConnection.bindToService();
1046		}
1047
1048		this.pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
1049		this.wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "XmppConnectionService");
1050
1051		toggleForegroundService();
1052		updateUnreadCountBadge();
1053		toggleScreenEventReceiver();
1054		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1055			scheduleNextIdlePing();
1056		}
1057		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
1058			registerReceiver(this.mEventReceiver,new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION));
1059		}
1060	}
1061
1062	@Override
1063	public void onTrimMemory(int level) {
1064		super.onTrimMemory(level);
1065		if (level >= TRIM_MEMORY_COMPLETE) {
1066			Log.d(Config.LOGTAG, "clear cache due to low memory");
1067			getBitmapCache().evictAll();
1068		}
1069	}
1070
1071	@Override
1072	public void onDestroy() {
1073		try {
1074			unregisterReceiver(this.mEventReceiver);
1075		} catch (IllegalArgumentException e) {
1076			//ignored
1077		}
1078		fileObserver.stopWatching();
1079		super.onDestroy();
1080	}
1081
1082	public void toggleScreenEventReceiver() {
1083		if (awayWhenScreenOff() && !manuallyChangePresence()) {
1084			final IntentFilter filter = new IntentFilter(Intent.ACTION_SCREEN_ON);
1085			filter.addAction(Intent.ACTION_SCREEN_OFF);
1086			registerReceiver(this.mEventReceiver, filter);
1087		} else {
1088			try {
1089				unregisterReceiver(this.mEventReceiver);
1090			} catch (IllegalArgumentException e) {
1091				//ignored
1092			}
1093		}
1094	}
1095
1096	public void toggleForegroundService() {
1097		if (keepForegroundService() && hasEnabledAccounts()) {
1098			startForeground(NotificationService.FOREGROUND_NOTIFICATION_ID, this.mNotificationService.createForegroundNotification());
1099		} else {
1100			stopForeground(true);
1101		}
1102	}
1103
1104	public boolean keepForegroundService() {
1105		return getBooleanPreference(SettingsActivity.KEEP_FOREGROUND_SERVICE,R.bool.enable_foreground_service);
1106	}
1107
1108	@Override
1109	public void onTaskRemoved(final Intent rootIntent) {
1110		super.onTaskRemoved(rootIntent);
1111		if (!keepForegroundService()) {
1112			this.logoutAndSave(false);
1113		} else {
1114			Log.d(Config.LOGTAG,"ignoring onTaskRemoved because foreground service is activated");
1115		}
1116	}
1117
1118	private void logoutAndSave(boolean stop) {
1119		int activeAccounts = 0;
1120		for (final Account account : accounts) {
1121			if (account.getStatus() != Account.State.DISABLED) {
1122				activeAccounts++;
1123			}
1124			databaseBackend.writeRoster(account.getRoster());
1125			if (account.getXmppConnection() != null) {
1126				new Thread(new Runnable() {
1127					@Override
1128					public void run() {
1129						disconnect(account, false);
1130					}
1131				}).start();
1132			}
1133		}
1134		if (stop || activeAccounts == 0) {
1135			Log.d(Config.LOGTAG, "good bye");
1136			stopSelf();
1137		}
1138	}
1139
1140	public void scheduleWakeUpCall(int seconds, int requestCode) {
1141		final long timeToWake = SystemClock.elapsedRealtime() + (seconds < 0 ? 1 : seconds + 1) * 1000;
1142		AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
1143		Intent intent = new Intent(this, EventReceiver.class);
1144		intent.setAction("ping");
1145		PendingIntent alarmIntent = PendingIntent.getBroadcast(this, requestCode, intent, 0);
1146		alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake, alarmIntent);
1147	}
1148
1149	@TargetApi(Build.VERSION_CODES.M)
1150	private void scheduleNextIdlePing() {
1151		Log.d(Config.LOGTAG,"schedule next idle ping");
1152		AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
1153		Intent intent = new Intent(this, EventReceiver.class);
1154		intent.setAction(ACTION_IDLE_PING);
1155		alarmManager.setAndAllowWhileIdle(AlarmManager.ELAPSED_REALTIME_WAKEUP,
1156				SystemClock.elapsedRealtime()+(Config.IDLE_PING_INTERVAL * 1000),
1157				PendingIntent.getBroadcast(this,0,intent,0)
1158				);
1159	}
1160
1161	public XmppConnection createConnection(final Account account) {
1162		final SharedPreferences sharedPref = getPreferences();
1163		String resource;
1164		try {
1165			resource = sharedPref.getString("resource", getString(R.string.default_resource)).toLowerCase(Locale.ENGLISH);
1166			if (resource.trim().isEmpty()) {
1167				throw new Exception();
1168			}
1169		} catch (Exception e) {
1170			resource = "conversations";
1171		}
1172		account.setResource(resource);
1173		final XmppConnection connection = new XmppConnection(account, this);
1174		connection.setOnMessagePacketReceivedListener(this.mMessageParser);
1175		connection.setOnStatusChangedListener(this.statusListener);
1176		connection.setOnPresencePacketReceivedListener(this.mPresenceParser);
1177		connection.setOnUnregisteredIqPacketReceivedListener(this.mIqParser);
1178		connection.setOnJinglePacketReceivedListener(this.jingleListener);
1179		connection.setOnBindListener(this.mOnBindListener);
1180		connection.setOnMessageAcknowledgeListener(this.mOnMessageAcknowledgedListener);
1181		connection.addOnAdvancedStreamFeaturesAvailableListener(this.mMessageArchiveService);
1182		connection.addOnAdvancedStreamFeaturesAvailableListener(this.mAvatarService);
1183		AxolotlService axolotlService = account.getAxolotlService();
1184		if (axolotlService != null) {
1185			connection.addOnAdvancedStreamFeaturesAvailableListener(axolotlService);
1186		}
1187		return connection;
1188	}
1189
1190	public void sendChatState(Conversation conversation) {
1191		if (sendChatStates()) {
1192			MessagePacket packet = mMessageGenerator.generateChatState(conversation);
1193			sendMessagePacket(conversation.getAccount(), packet);
1194		}
1195	}
1196
1197	private void sendFileMessage(final Message message, final boolean delay) {
1198		Log.d(Config.LOGTAG, "send file message");
1199		final Account account = message.getConversation().getAccount();
1200		if (account.httpUploadAvailable(fileBackend.getFile(message,false).getSize())
1201				|| message.getConversation().getMode() == Conversation.MODE_MULTI) {
1202			mHttpConnectionManager.createNewUploadConnection(message, delay);
1203		} else {
1204			mJingleConnectionManager.createNewConnection(message);
1205		}
1206	}
1207
1208	public void sendMessage(final Message message) {
1209		sendMessage(message, false, false);
1210	}
1211
1212	private void sendMessage(final Message message, final boolean resend, final boolean delay) {
1213		final Account account = message.getConversation().getAccount();
1214		if (account.setShowErrorNotification(true)) {
1215			databaseBackend.updateAccount(account);
1216			mNotificationService.updateErrorNotification();
1217		}
1218		final Conversation conversation = message.getConversation();
1219		account.deactivateGracePeriod();
1220		MessagePacket packet = null;
1221		final boolean addToConversation = (conversation.getMode() != Conversation.MODE_MULTI
1222				|| !Patches.BAD_MUC_REFLECTION.contains(account.getServerIdentity()))
1223				&& !message.edited();
1224		boolean saveInDb = addToConversation;
1225		message.setStatus(Message.STATUS_WAITING);
1226
1227		if (!resend && message.getEncryption() != Message.ENCRYPTION_OTR) {
1228			message.getConversation().endOtrIfNeeded();
1229			message.getConversation().findUnsentMessagesWithEncryption(Message.ENCRYPTION_OTR,
1230					new Conversation.OnMessageFound() {
1231						@Override
1232						public void onMessageFound(Message message) {
1233							markMessage(message, Message.STATUS_SEND_FAILED);
1234						}
1235					});
1236		}
1237
1238		if (account.isOnlineAndConnected()) {
1239			switch (message.getEncryption()) {
1240				case Message.ENCRYPTION_NONE:
1241					if (message.needsUploading()) {
1242						if (account.httpUploadAvailable(fileBackend.getFile(message,false).getSize())
1243								|| conversation.getMode() == Conversation.MODE_MULTI
1244								|| message.fixCounterpart()) {
1245							this.sendFileMessage(message, delay);
1246						} else {
1247							break;
1248						}
1249					} else {
1250						packet = mMessageGenerator.generateChat(message);
1251					}
1252					break;
1253				case Message.ENCRYPTION_PGP:
1254				case Message.ENCRYPTION_DECRYPTED:
1255					if (message.needsUploading()) {
1256						if (account.httpUploadAvailable(fileBackend.getFile(message,false).getSize())
1257								|| conversation.getMode() == Conversation.MODE_MULTI
1258								|| message.fixCounterpart()) {
1259							this.sendFileMessage(message, delay);
1260						} else {
1261							break;
1262						}
1263					} else {
1264						packet = mMessageGenerator.generatePgpChat(message);
1265					}
1266					break;
1267				case Message.ENCRYPTION_OTR:
1268					SessionImpl otrSession = conversation.getOtrSession();
1269					if (otrSession != null && otrSession.getSessionStatus() == SessionStatus.ENCRYPTED) {
1270						try {
1271							message.setCounterpart(Jid.fromSessionID(otrSession.getSessionID()));
1272						} catch (InvalidJidException e) {
1273							break;
1274						}
1275						if (message.needsUploading()) {
1276							mJingleConnectionManager.createNewConnection(message);
1277						} else {
1278							packet = mMessageGenerator.generateOtrChat(message);
1279						}
1280					} else if (otrSession == null) {
1281						if (message.fixCounterpart()) {
1282							conversation.startOtrSession(message.getCounterpart().getResourcepart(), true);
1283						} else {
1284							Log.d(Config.LOGTAG,account.getJid().toBareJid()+": could not fix counterpart for OTR message to contact "+message.getCounterpart());
1285							break;
1286						}
1287					} else {
1288						Log.d(Config.LOGTAG,account.getJid().toBareJid()+" OTR session with "+message.getContact()+" is in wrong state: "+otrSession.getSessionStatus().toString());
1289					}
1290					break;
1291				case Message.ENCRYPTION_AXOLOTL:
1292					message.setFingerprint(account.getAxolotlService().getOwnFingerprint());
1293					if (message.needsUploading()) {
1294						if (account.httpUploadAvailable(fileBackend.getFile(message,false).getSize())
1295								|| conversation.getMode() == Conversation.MODE_MULTI
1296								|| message.fixCounterpart()) {
1297							this.sendFileMessage(message, delay);
1298						} else {
1299							break;
1300						}
1301					} else {
1302						XmppAxolotlMessage axolotlMessage = account.getAxolotlService().fetchAxolotlMessageFromCache(message);
1303						if (axolotlMessage == null) {
1304							account.getAxolotlService().preparePayloadMessage(message, delay);
1305						} else {
1306							packet = mMessageGenerator.generateAxolotlChat(message, axolotlMessage);
1307						}
1308					}
1309					break;
1310
1311			}
1312			if (packet != null) {
1313				if (account.getXmppConnection().getFeatures().sm()
1314						|| (conversation.getMode() == Conversation.MODE_MULTI && message.getCounterpart().isBareJid())) {
1315					message.setStatus(Message.STATUS_UNSEND);
1316				} else {
1317					message.setStatus(Message.STATUS_SEND);
1318				}
1319			}
1320		} else {
1321			switch (message.getEncryption()) {
1322				case Message.ENCRYPTION_DECRYPTED:
1323					if (!message.needsUploading()) {
1324						String pgpBody = message.getEncryptedBody();
1325						String decryptedBody = message.getBody();
1326						message.setBody(pgpBody);
1327						message.setEncryption(Message.ENCRYPTION_PGP);
1328						if (message.edited()) {
1329							message.setBody(decryptedBody);
1330							message.setEncryption(Message.ENCRYPTION_DECRYPTED);
1331							databaseBackend.updateMessage(message, message.getEditedId());
1332							updateConversationUi();
1333							return;
1334						} else {
1335							databaseBackend.createMessage(message);
1336							saveInDb = false;
1337							message.setBody(decryptedBody);
1338							message.setEncryption(Message.ENCRYPTION_DECRYPTED);
1339						}
1340					}
1341					break;
1342				case Message.ENCRYPTION_OTR:
1343					if (!conversation.hasValidOtrSession() && message.getCounterpart() != null) {
1344						Log.d(Config.LOGTAG,account.getJid().toBareJid()+": create otr session without starting for "+message.getContact().getJid());
1345						conversation.startOtrSession(message.getCounterpart().getResourcepart(), false);
1346					}
1347					break;
1348				case Message.ENCRYPTION_AXOLOTL:
1349					message.setFingerprint(account.getAxolotlService().getOwnFingerprint());
1350					break;
1351			}
1352		}
1353
1354		if (resend) {
1355			if (packet != null && addToConversation) {
1356				if (account.getXmppConnection().getFeatures().sm()
1357						|| (conversation.getMode() == Conversation.MODE_MULTI && message.getCounterpart().isBareJid())) {
1358					markMessage(message, Message.STATUS_UNSEND);
1359				} else {
1360					markMessage(message, Message.STATUS_SEND);
1361				}
1362			}
1363		} else {
1364			if (addToConversation) {
1365				conversation.add(message);
1366			}
1367			if (saveInDb) {
1368				databaseBackend.createMessage(message);
1369			} else if (message.edited()) {
1370				databaseBackend.updateMessage(message, message.getEditedId());
1371			}
1372			updateConversationUi();
1373		}
1374		if (packet != null) {
1375			if (delay) {
1376				mMessageGenerator.addDelay(packet, message.getTimeSent());
1377			}
1378			if (conversation.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
1379				if (this.sendChatStates()) {
1380					packet.addChild(ChatState.toElement(conversation.getOutgoingChatState()));
1381				}
1382			}
1383			sendMessagePacket(account, packet);
1384		}
1385	}
1386
1387	private void sendUnsentMessages(final Conversation conversation) {
1388		conversation.findWaitingMessages(new Conversation.OnMessageFound() {
1389
1390			@Override
1391			public void onMessageFound(Message message) {
1392				resendMessage(message, true);
1393			}
1394		});
1395	}
1396
1397	public void resendMessage(final Message message, final boolean delay) {
1398		sendMessage(message, true, delay);
1399	}
1400
1401	public void fetchRosterFromServer(final Account account) {
1402		final IqPacket iqPacket = new IqPacket(IqPacket.TYPE.GET);
1403		if (!"".equals(account.getRosterVersion())) {
1404			Log.d(Config.LOGTAG, account.getJid().toBareJid()
1405					+ ": fetching roster version " + account.getRosterVersion());
1406		} else {
1407			Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": fetching roster");
1408		}
1409		iqPacket.query(Namespace.ROSTER).setAttribute("ver", account.getRosterVersion());
1410		sendIqPacket(account, iqPacket, mIqParser);
1411	}
1412
1413	public void fetchBookmarks(final Account account) {
1414		final IqPacket iqPacket = new IqPacket(IqPacket.TYPE.GET);
1415		final Element query = iqPacket.query("jabber:iq:private");
1416		query.addChild("storage", "storage:bookmarks");
1417		final OnIqPacketReceived callback = new OnIqPacketReceived() {
1418
1419			@Override
1420			public void onIqPacketReceived(final Account account, final IqPacket packet) {
1421				if (packet.getType() == IqPacket.TYPE.RESULT) {
1422					final Element query = packet.query();
1423					final HashMap<Jid, Bookmark> bookmarks = new HashMap<>();
1424					final Element storage = query.findChild("storage", "storage:bookmarks");
1425					final boolean autojoin = respectAutojoin();
1426					if (storage != null) {
1427						for (final Element item : storage.getChildren()) {
1428							if (item.getName().equals("conference")) {
1429								final Bookmark bookmark = Bookmark.parse(item, account);
1430								Bookmark old = bookmarks.put(bookmark.getJid(), bookmark);
1431								if (old != null && old.getBookmarkName() != null && bookmark.getBookmarkName() == null) {
1432									bookmark.setBookmarkName(old.getBookmarkName());
1433								}
1434								Conversation conversation = find(bookmark);
1435								if (conversation != null) {
1436									conversation.setBookmark(bookmark);
1437								} else if (bookmark.autojoin() && bookmark.getJid() != null && autojoin) {
1438									conversation = findOrCreateConversation(account, bookmark.getJid(), true, true, false);
1439									conversation.setBookmark(bookmark);
1440								}
1441							}
1442						}
1443					}
1444					account.setBookmarks(new ArrayList<>(bookmarks.values()));
1445				} else {
1446					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": could not fetch bookmarks");
1447				}
1448			}
1449		};
1450		sendIqPacket(account, iqPacket, callback);
1451	}
1452
1453	public void pushBookmarks(Account account) {
1454		Log.d(Config.LOGTAG, account.getJid().toBareJid()+": pushing bookmarks");
1455		IqPacket iqPacket = new IqPacket(IqPacket.TYPE.SET);
1456		Element query = iqPacket.query("jabber:iq:private");
1457		Element storage = query.addChild("storage", "storage:bookmarks");
1458		for (Bookmark bookmark : account.getBookmarks()) {
1459			storage.addChild(bookmark);
1460		}
1461		sendIqPacket(account, iqPacket, mDefaultIqHandler);
1462	}
1463
1464	private void restoreFromDatabase() {
1465		synchronized (this.conversations) {
1466			final Map<String, Account> accountLookupTable = new Hashtable<>();
1467			for (Account account : this.accounts) {
1468				accountLookupTable.put(account.getUuid(), account);
1469			}
1470			Log.d(Config.LOGTAG,"restoring conversations...");
1471			final long startTimeConversationsRestore = SystemClock.elapsedRealtime();
1472			this.conversations.addAll(databaseBackend.getConversations(Conversation.STATUS_AVAILABLE));
1473			for(Iterator<Conversation> iterator = conversations.listIterator(); iterator.hasNext();) {
1474				Conversation conversation = iterator.next();
1475				Account account = accountLookupTable.get(conversation.getAccountUuid());
1476				if (account != null) {
1477					conversation.setAccount(account);
1478				} else {
1479					Log.e(Config.LOGTAG,"unable to restore Conversations with "+conversation.getJid());
1480					iterator.remove();
1481				}
1482			}
1483			long diffConversationsRestore = SystemClock.elapsedRealtime() - startTimeConversationsRestore;
1484			Log.d(Config.LOGTAG,"finished restoring conversations in "+diffConversationsRestore+"ms");
1485			Runnable runnable = new Runnable() {
1486				@Override
1487				public void run() {
1488					long deletionDate = getAutomaticMessageDeletionDate();
1489					mLastExpiryRun.set(SystemClock.elapsedRealtime());
1490					if (deletionDate > 0) {
1491						Log.d(Config.LOGTAG, "deleting messages that are older than "+AbstractGenerator.getTimestamp(deletionDate));
1492						databaseBackend.expireOldMessages(deletionDate);
1493					}
1494					Log.d(Config.LOGTAG,"restoring roster...");
1495					for (Account account : accounts) {
1496						databaseBackend.readRoster(account.getRoster());
1497						account.initAccountServices(XmppConnectionService.this); //roster needs to be loaded at this stage
1498					}
1499					getBitmapCache().evictAll();
1500					loadPhoneContacts();
1501					Log.d(Config.LOGTAG, "restoring messages...");
1502					final long startMessageRestore = SystemClock.elapsedRealtime();
1503					for (Conversation conversation : conversations) {
1504						conversation.addAll(0, databaseBackend.getMessages(conversation, Config.PAGE_SIZE));
1505						checkDeletedFiles(conversation);
1506						conversation.findUnsentTextMessages(new Conversation.OnMessageFound() {
1507
1508							@Override
1509							public void onMessageFound(Message message) {
1510								markMessage(message, Message.STATUS_WAITING);
1511							}
1512						});
1513						conversation.findUnreadMessages(new Conversation.OnMessageFound() {
1514							@Override
1515							public void onMessageFound(Message message) {
1516								mNotificationService.pushFromBacklog(message);
1517							}
1518						});
1519					}
1520					mNotificationService.finishBacklog(false);
1521					mRestoredFromDatabase = true;
1522					final long diffMessageRestore = SystemClock.elapsedRealtime() - startMessageRestore;
1523					Log.d(Config.LOGTAG, "finished restoring messages in "+diffMessageRestore+"ms");
1524					updateConversationUi();
1525				}
1526			};
1527			mDatabaseExecutor.execute(runnable);
1528		}
1529	}
1530
1531	public void loadPhoneContacts() {
1532		mContactMergerExecutor.execute(new Runnable() {
1533			@Override
1534			public void run() {
1535				PhoneHelper.loadPhoneContacts(XmppConnectionService.this, new OnPhoneContactsLoadedListener() {
1536					@Override
1537					public void onPhoneContactsLoaded(List<Bundle> phoneContacts) {
1538						Log.d(Config.LOGTAG, "start merging phone contacts with roster");
1539						for (Account account : accounts) {
1540							List<Contact> withSystemAccounts = account.getRoster().getWithSystemAccounts();
1541							for (Bundle phoneContact : phoneContacts) {
1542								Jid jid;
1543								try {
1544									jid = Jid.fromString(phoneContact.getString("jid"));
1545								} catch (final InvalidJidException e) {
1546									continue;
1547								}
1548								final Contact contact = account.getRoster().getContact(jid);
1549								String systemAccount = phoneContact.getInt("phoneid")
1550										+ "#"
1551										+ phoneContact.getString("lookup");
1552								contact.setSystemAccount(systemAccount);
1553								boolean needsCacheClean = contact.setPhotoUri(phoneContact.getString("photouri"));
1554								needsCacheClean |= contact.setSystemName(phoneContact.getString("displayname"));
1555								if (needsCacheClean) {
1556									getAvatarService().clear(contact);
1557								}
1558								withSystemAccounts.remove(contact);
1559							}
1560							for (Contact contact : withSystemAccounts) {
1561								contact.setSystemAccount(null);
1562								boolean needsCacheClean = contact.setPhotoUri(null);
1563								needsCacheClean |= contact.setSystemName(null);
1564								if (needsCacheClean) {
1565									getAvatarService().clear(contact);
1566								}
1567							}
1568						}
1569						Log.d(Config.LOGTAG, "finished merging phone contacts");
1570						mShortcutService.refresh(mInitialAddressbookSyncCompleted.compareAndSet(false,true));
1571						updateAccountUi();
1572					}
1573				});
1574			}
1575		});
1576	}
1577
1578	public List<Conversation> getConversations() {
1579		return this.conversations;
1580	}
1581
1582	private void checkDeletedFiles(Conversation conversation) {
1583		conversation.findMessagesWithFiles(new Conversation.OnMessageFound() {
1584
1585			@Override
1586			public void onMessageFound(Message message) {
1587				if (!getFileBackend().isFileAvailable(message)) {
1588					message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
1589					final int s = message.getStatus();
1590					if (s == Message.STATUS_WAITING || s == Message.STATUS_OFFERED || s == Message.STATUS_UNSEND) {
1591						markMessage(message, Message.STATUS_SEND_FAILED);
1592					}
1593				}
1594			}
1595		});
1596	}
1597
1598	private void markFileDeleted(final String path) {
1599		Log.d(Config.LOGTAG,"deleted file "+path);
1600		for (Conversation conversation : getConversations()) {
1601			conversation.findMessagesWithFiles(new Conversation.OnMessageFound() {
1602				@Override
1603				public void onMessageFound(Message message) {
1604					DownloadableFile file = fileBackend.getFile(message);
1605					if (file.getAbsolutePath().equals(path)) {
1606						if (!file.exists()) {
1607							message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
1608							final int s = message.getStatus();
1609							if (s == Message.STATUS_WAITING || s == Message.STATUS_OFFERED || s == Message.STATUS_UNSEND) {
1610								markMessage(message, Message.STATUS_SEND_FAILED);
1611							} else {
1612								updateConversationUi();
1613							}
1614						} else {
1615							Log.d(Config.LOGTAG,"found matching message for file "+path+" but file still exists");
1616						}
1617					}
1618				}
1619			});
1620		}
1621	}
1622
1623	public void populateWithOrderedConversations(final List<Conversation> list) {
1624		populateWithOrderedConversations(list, true);
1625	}
1626
1627	public void populateWithOrderedConversations(final List<Conversation> list, boolean includeNoFileUpload) {
1628		list.clear();
1629		if (includeNoFileUpload) {
1630			list.addAll(getConversations());
1631		} else {
1632			for (Conversation conversation : getConversations()) {
1633				if (conversation.getMode() == Conversation.MODE_SINGLE
1634						|| conversation.getAccount().httpUploadAvailable()) {
1635					list.add(conversation);
1636				}
1637			}
1638		}
1639		try {
1640			Collections.sort(list);
1641		} catch (IllegalArgumentException e) {
1642			//ignore
1643		}
1644	}
1645
1646	public void loadMoreMessages(final Conversation conversation, final long timestamp, final OnMoreMessagesLoaded callback) {
1647		if (XmppConnectionService.this.getMessageArchiveService().queryInProgress(conversation, callback)) {
1648			return;
1649		} else if (timestamp == 0) {
1650			return;
1651		}
1652		Log.d(Config.LOGTAG, "load more messages for " + conversation.getName() + " prior to " + MessageGenerator.getTimestamp(timestamp));
1653		Runnable runnable = new Runnable() {
1654			@Override
1655			public void run() {
1656				final Account account = conversation.getAccount();
1657				List<Message> messages = databaseBackend.getMessages(conversation, 50, timestamp);
1658				if (messages.size() > 0) {
1659					conversation.addAll(0, messages);
1660					checkDeletedFiles(conversation);
1661					callback.onMoreMessagesLoaded(messages.size(), conversation);
1662				} else if (conversation.hasMessagesLeftOnServer()
1663						&& account.isOnlineAndConnected()
1664						&& conversation.getLastClearHistory().getTimestamp() == 0) {
1665					if ((conversation.getMode() == Conversation.MODE_SINGLE && account.getXmppConnection().getFeatures().mam())
1666							|| (conversation.getMode() == Conversation.MODE_MULTI && conversation.getMucOptions().mamSupport())) {
1667						MessageArchiveService.Query query = getMessageArchiveService().query(conversation, new MamReference(0), timestamp, false);
1668						if (query != null) {
1669							query.setCallback(callback);
1670							callback.informUser(R.string.fetching_history_from_server);
1671						} else {
1672							callback.informUser(R.string.not_fetching_history_retention_period);
1673						}
1674
1675					}
1676				}
1677			}
1678		};
1679		mDatabaseExecutor.execute(runnable);
1680	}
1681
1682	public List<Account> getAccounts() {
1683		return this.accounts;
1684	}
1685
1686	public List<Conversation> findAllConferencesWith(Contact contact) {
1687		ArrayList<Conversation> results = new ArrayList<>();
1688		for(Conversation conversation : conversations) {
1689			if (conversation.getMode() == Conversation.MODE_MULTI
1690					&& conversation.getMucOptions().isContactInRoom(contact)) {
1691				results.add(conversation);
1692			}
1693		}
1694		return results;
1695	}
1696
1697	public Conversation find(final Iterable<Conversation> haystack, final Contact contact) {
1698		for (final Conversation conversation : haystack) {
1699			if (conversation.getContact() == contact) {
1700				return conversation;
1701			}
1702		}
1703		return null;
1704	}
1705
1706	public Conversation find(final Iterable<Conversation> haystack, final Account account, final Jid jid) {
1707		if (jid == null) {
1708			return null;
1709		}
1710		for (final Conversation conversation : haystack) {
1711			if ((account == null || conversation.getAccount() == account)
1712					&& (conversation.getJid().toBareJid().equals(jid.toBareJid()))) {
1713				return conversation;
1714			}
1715		}
1716		return null;
1717	}
1718
1719	public Conversation findOrCreateConversation(Account account, Jid jid, boolean muc, final boolean async) {
1720		return this.findOrCreateConversation(account,jid,muc,false, async);
1721	}
1722
1723	public Conversation findOrCreateConversation(final Account account, final Jid jid, final boolean muc, final boolean joinAfterCreate, final boolean async) {
1724		return this.findOrCreateConversation(account, jid, muc, joinAfterCreate, null, async);
1725	}
1726
1727	public Conversation findOrCreateConversation(final Account account, final Jid jid, final boolean muc, final boolean joinAfterCreate, final MessageArchiveService.Query query, final boolean async) {
1728		synchronized (this.conversations) {
1729			Conversation conversation = find(account, jid);
1730			if (conversation != null) {
1731				return conversation;
1732			}
1733			conversation = databaseBackend.findConversation(account, jid);
1734			final boolean loadMessagesFromDb;
1735			if (conversation != null) {
1736				conversation.setStatus(Conversation.STATUS_AVAILABLE);
1737				conversation.setAccount(account);
1738				if (muc) {
1739					conversation.setMode(Conversation.MODE_MULTI);
1740					conversation.setContactJid(jid);
1741				} else {
1742					conversation.setMode(Conversation.MODE_SINGLE);
1743					conversation.setContactJid(jid.toBareJid());
1744				}
1745				databaseBackend.updateConversation(conversation);
1746				loadMessagesFromDb = conversation.messagesLoaded.compareAndSet(true,false);
1747			} else {
1748				String conversationName;
1749				Contact contact = account.getRoster().getContact(jid);
1750				if (contact != null) {
1751					conversationName = contact.getDisplayName();
1752				} else {
1753					conversationName = jid.getLocalpart();
1754				}
1755				if (muc) {
1756					conversation = new Conversation(conversationName, account, jid,
1757							Conversation.MODE_MULTI);
1758				} else {
1759					conversation = new Conversation(conversationName, account, jid.toBareJid(),
1760							Conversation.MODE_SINGLE);
1761				}
1762				this.databaseBackend.createConversation(conversation);
1763				loadMessagesFromDb = false;
1764			}
1765			final Conversation c = conversation;
1766			final Runnable runnable = new Runnable() {
1767				@Override
1768				public void run() {
1769					if (loadMessagesFromDb) {
1770						c.addAll(0, databaseBackend.getMessages(c, Config.PAGE_SIZE));
1771						updateConversationUi();
1772						c.messagesLoaded.set(true);
1773					}
1774					if (account.getXmppConnection() != null
1775							&& account.getXmppConnection().getFeatures().mam()
1776							&& !muc) {
1777						if (query == null) {
1778							mMessageArchiveService.query(c);
1779						} else {
1780							if (query.getConversation() == null) {
1781								mMessageArchiveService.query(c, query.getStart(),query.isCatchup());
1782							}
1783						}
1784					}
1785					checkDeletedFiles(c);
1786					if (joinAfterCreate) {
1787						joinMuc(c);
1788					}
1789				}
1790			};
1791			if (async) {
1792				mDatabaseExecutor.execute(runnable);
1793			} else {
1794				runnable.run();
1795			}
1796			this.conversations.add(conversation);
1797			updateConversationUi();
1798			return conversation;
1799		}
1800	}
1801
1802	public void archiveConversation(Conversation conversation) {
1803		getNotificationService().clear(conversation);
1804		conversation.setStatus(Conversation.STATUS_ARCHIVED);
1805		synchronized (this.conversations) {
1806			if (conversation.getMode() == Conversation.MODE_MULTI) {
1807				if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
1808					Bookmark bookmark = conversation.getBookmark();
1809					if (bookmark != null && bookmark.autojoin() && respectAutojoin()) {
1810						bookmark.setAutojoin(false);
1811						pushBookmarks(bookmark.getAccount());
1812					}
1813				}
1814				leaveMuc(conversation);
1815			} else {
1816				conversation.endOtrIfNeeded();
1817				if (conversation.getContact().getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
1818					Log.d(Config.LOGTAG, "Canceling presence request from " + conversation.getJid().toString());
1819					sendPresencePacket(
1820							conversation.getAccount(),
1821							mPresenceGenerator.stopPresenceUpdatesTo(conversation.getContact())
1822					);
1823				}
1824			}
1825			updateConversation(conversation);
1826			this.conversations.remove(conversation);
1827			updateConversationUi();
1828		}
1829	}
1830
1831	public void createAccount(final Account account) {
1832		account.initAccountServices(this);
1833		databaseBackend.createAccount(account);
1834		this.accounts.add(account);
1835		this.reconnectAccountInBackground(account);
1836		updateAccountUi();
1837		toggleForegroundService();
1838	}
1839
1840	public void createAccountFromKey(final String alias, final OnAccountCreated callback) {
1841		new Thread(new Runnable() {
1842			@Override
1843			public void run() {
1844				try {
1845					X509Certificate[] chain = KeyChain.getCertificateChain(XmppConnectionService.this, alias);
1846					Pair<Jid, String> info = CryptoHelper.extractJidAndName(chain[0]);
1847					if (info == null) {
1848						callback.informUser(R.string.certificate_does_not_contain_jid);
1849						return;
1850					}
1851					if (findAccountByJid(info.first) == null) {
1852						Account account = new Account(info.first, "");
1853						account.setPrivateKeyAlias(alias);
1854						account.setOption(Account.OPTION_DISABLED, true);
1855						account.setDisplayName(info.second);
1856						createAccount(account);
1857						callback.onAccountCreated(account);
1858						if (Config.X509_VERIFICATION) {
1859							try {
1860								getMemorizingTrustManager().getNonInteractive(account.getJid().getDomainpart()).checkClientTrusted(chain, "RSA");
1861							} catch (CertificateException e) {
1862								callback.informUser(R.string.certificate_chain_is_not_trusted);
1863							}
1864						}
1865					} else {
1866						callback.informUser(R.string.account_already_exists);
1867					}
1868				} catch (Exception e) {
1869					e.printStackTrace();
1870					callback.informUser(R.string.unable_to_parse_certificate);
1871				}
1872			}
1873		}).start();
1874
1875	}
1876
1877	public void updateKeyInAccount(final Account account, final String alias) {
1878		Log.d(Config.LOGTAG, account.getJid().toBareJid()+": update key in account " + alias);
1879		try {
1880			X509Certificate[] chain = KeyChain.getCertificateChain(XmppConnectionService.this, alias);
1881			Log.d(Config.LOGTAG,account.getJid().toBareJid()+" loaded certificate chain");
1882			Pair<Jid, String> info = CryptoHelper.extractJidAndName(chain[0]);
1883			if (account.getJid().toBareJid().equals(info.first)) {
1884				account.setPrivateKeyAlias(alias);
1885				account.setDisplayName(info.second);
1886				databaseBackend.updateAccount(account);
1887				if (Config.X509_VERIFICATION) {
1888					try {
1889						getMemorizingTrustManager().getNonInteractive().checkClientTrusted(chain, "RSA");
1890					} catch (CertificateException e) {
1891						showErrorToastInUi(R.string.certificate_chain_is_not_trusted);
1892					}
1893					account.getAxolotlService().regenerateKeys(true);
1894				}
1895			} else {
1896				showErrorToastInUi(R.string.jid_does_not_match_certificate);
1897			}
1898		} catch (Exception e) {
1899			e.printStackTrace();
1900		}
1901	}
1902
1903	public boolean updateAccount(final Account account) {
1904		if (databaseBackend.updateAccount(account)) {
1905			account.setShowErrorNotification(true);
1906			this.statusListener.onStatusChanged(account);
1907			databaseBackend.updateAccount(account);
1908			reconnectAccountInBackground(account);
1909			updateAccountUi();
1910			getNotificationService().updateErrorNotification();
1911			toggleForegroundService();
1912			return true;
1913		} else {
1914			return false;
1915		}
1916	}
1917
1918	public void updateAccountPasswordOnServer(final Account account, final String newPassword, final OnAccountPasswordChanged callback) {
1919		final IqPacket iq = getIqGenerator().generateSetPassword(account, newPassword);
1920		sendIqPacket(account, iq, new OnIqPacketReceived() {
1921			@Override
1922			public void onIqPacketReceived(final Account account, final IqPacket packet) {
1923				if (packet.getType() == IqPacket.TYPE.RESULT) {
1924					account.setPassword(newPassword);
1925					account.setOption(Account.OPTION_MAGIC_CREATE, false);
1926					databaseBackend.updateAccount(account);
1927					callback.onPasswordChangeSucceeded();
1928				} else {
1929					callback.onPasswordChangeFailed();
1930				}
1931			}
1932		});
1933	}
1934
1935	public void deleteAccount(final Account account) {
1936		synchronized (this.conversations) {
1937			for (final Conversation conversation : conversations) {
1938				if (conversation.getAccount() == account) {
1939					if (conversation.getMode() == Conversation.MODE_MULTI) {
1940						leaveMuc(conversation);
1941					} else if (conversation.getMode() == Conversation.MODE_SINGLE) {
1942						conversation.endOtrIfNeeded();
1943					}
1944					conversations.remove(conversation);
1945				}
1946			}
1947			if (account.getXmppConnection() != null) {
1948				new Thread(new Runnable() {
1949					@Override
1950					public void run() {
1951						disconnect(account, true);
1952					}
1953				}).start();
1954			}
1955			Runnable runnable = new Runnable() {
1956				@Override
1957				public void run() {
1958					if (!databaseBackend.deleteAccount(account)) {
1959						Log.d(Config.LOGTAG,account.getJid().toBareJid()+": unable to delete account");
1960					}
1961				}
1962			};
1963			mDatabaseExecutor.execute(runnable);
1964			this.accounts.remove(account);
1965			updateAccountUi();
1966			getNotificationService().updateErrorNotification();
1967		}
1968	}
1969
1970	public void setOnConversationListChangedListener(OnConversationUpdate listener) {
1971		synchronized (this) {
1972			this.mLastActivity = System.currentTimeMillis();
1973			if (checkListeners()) {
1974				switchToForeground();
1975			}
1976			this.mOnConversationUpdate = listener;
1977			this.mNotificationService.setIsInForeground(true);
1978			if (this.convChangedListenerCount < 2) {
1979				this.convChangedListenerCount++;
1980			}
1981		}
1982	}
1983
1984	public void removeOnConversationListChangedListener() {
1985		synchronized (this) {
1986			this.convChangedListenerCount--;
1987			if (this.convChangedListenerCount <= 0) {
1988				this.convChangedListenerCount = 0;
1989				this.mOnConversationUpdate = null;
1990				this.mNotificationService.setIsInForeground(false);
1991				if (checkListeners()) {
1992					switchToBackground();
1993				}
1994			}
1995		}
1996	}
1997
1998	public void setOnShowErrorToastListener(OnShowErrorToast onShowErrorToast) {
1999		synchronized (this) {
2000			if (checkListeners()) {
2001				switchToForeground();
2002			}
2003			this.mOnShowErrorToast = onShowErrorToast;
2004			if (this.showErrorToastListenerCount < 2) {
2005				this.showErrorToastListenerCount++;
2006			}
2007		}
2008		this.mOnShowErrorToast = onShowErrorToast;
2009	}
2010
2011	public void removeOnShowErrorToastListener() {
2012		synchronized (this) {
2013			this.showErrorToastListenerCount--;
2014			if (this.showErrorToastListenerCount <= 0) {
2015				this.showErrorToastListenerCount = 0;
2016				this.mOnShowErrorToast = null;
2017				if (checkListeners()) {
2018					switchToBackground();
2019				}
2020			}
2021		}
2022	}
2023
2024	public void setOnAccountListChangedListener(OnAccountUpdate listener) {
2025		synchronized (this) {
2026			if (checkListeners()) {
2027				switchToForeground();
2028			}
2029			this.mOnAccountUpdate = listener;
2030			if (this.accountChangedListenerCount < 2) {
2031				this.accountChangedListenerCount++;
2032			}
2033		}
2034	}
2035
2036	public void removeOnAccountListChangedListener() {
2037		synchronized (this) {
2038			this.accountChangedListenerCount--;
2039			if (this.accountChangedListenerCount <= 0) {
2040				this.mOnAccountUpdate = null;
2041				this.accountChangedListenerCount = 0;
2042				if (checkListeners()) {
2043					switchToBackground();
2044				}
2045			}
2046		}
2047	}
2048
2049	public void setOnCaptchaRequestedListener(OnCaptchaRequested listener) {
2050		synchronized (this) {
2051			if (checkListeners()) {
2052				switchToForeground();
2053			}
2054			this.mOnCaptchaRequested = listener;
2055			if (this.captchaRequestedListenerCount < 2) {
2056				this.captchaRequestedListenerCount++;
2057			}
2058		}
2059	}
2060
2061	public void removeOnCaptchaRequestedListener() {
2062		synchronized (this) {
2063			this.captchaRequestedListenerCount--;
2064			if (this.captchaRequestedListenerCount <= 0) {
2065				this.mOnCaptchaRequested = null;
2066				this.captchaRequestedListenerCount = 0;
2067				if (checkListeners()) {
2068					switchToBackground();
2069				}
2070			}
2071		}
2072	}
2073
2074	public void setOnRosterUpdateListener(final OnRosterUpdate listener) {
2075		synchronized (this) {
2076			if (checkListeners()) {
2077				switchToForeground();
2078			}
2079			this.mOnRosterUpdate = listener;
2080			if (this.rosterChangedListenerCount < 2) {
2081				this.rosterChangedListenerCount++;
2082			}
2083		}
2084	}
2085
2086	public void removeOnRosterUpdateListener() {
2087		synchronized (this) {
2088			this.rosterChangedListenerCount--;
2089			if (this.rosterChangedListenerCount <= 0) {
2090				this.rosterChangedListenerCount = 0;
2091				this.mOnRosterUpdate = null;
2092				if (checkListeners()) {
2093					switchToBackground();
2094				}
2095			}
2096		}
2097	}
2098
2099	public void setOnUpdateBlocklistListener(final OnUpdateBlocklist listener) {
2100		synchronized (this) {
2101			if (checkListeners()) {
2102				switchToForeground();
2103			}
2104			this.mOnUpdateBlocklist = listener;
2105			if (this.updateBlocklistListenerCount < 2) {
2106				this.updateBlocklistListenerCount++;
2107			}
2108		}
2109	}
2110
2111	public void removeOnUpdateBlocklistListener() {
2112		synchronized (this) {
2113			this.updateBlocklistListenerCount--;
2114			if (this.updateBlocklistListenerCount <= 0) {
2115				this.updateBlocklistListenerCount = 0;
2116				this.mOnUpdateBlocklist = null;
2117				if (checkListeners()) {
2118					switchToBackground();
2119				}
2120			}
2121		}
2122	}
2123
2124	public void setOnKeyStatusUpdatedListener(final OnKeyStatusUpdated listener) {
2125		synchronized (this) {
2126			if (checkListeners()) {
2127				switchToForeground();
2128			}
2129			this.mOnKeyStatusUpdated = listener;
2130			if (this.keyStatusUpdatedListenerCount < 2) {
2131				this.keyStatusUpdatedListenerCount++;
2132			}
2133		}
2134	}
2135
2136	public void removeOnNewKeysAvailableListener() {
2137		synchronized (this) {
2138			this.keyStatusUpdatedListenerCount--;
2139			if (this.keyStatusUpdatedListenerCount <= 0) {
2140				this.keyStatusUpdatedListenerCount = 0;
2141				this.mOnKeyStatusUpdated = null;
2142				if (checkListeners()) {
2143					switchToBackground();
2144				}
2145			}
2146		}
2147	}
2148
2149	public void setOnMucRosterUpdateListener(OnMucRosterUpdate listener) {
2150		synchronized (this) {
2151			if (checkListeners()) {
2152				switchToForeground();
2153			}
2154			this.mOnMucRosterUpdate = listener;
2155			if (this.mucRosterChangedListenerCount < 2) {
2156				this.mucRosterChangedListenerCount++;
2157			}
2158		}
2159	}
2160
2161	public void removeOnMucRosterUpdateListener() {
2162		synchronized (this) {
2163			this.mucRosterChangedListenerCount--;
2164			if (this.mucRosterChangedListenerCount <= 0) {
2165				this.mucRosterChangedListenerCount = 0;
2166				this.mOnMucRosterUpdate = null;
2167				if (checkListeners()) {
2168					switchToBackground();
2169				}
2170			}
2171		}
2172	}
2173
2174	public boolean checkListeners() {
2175		return (this.mOnAccountUpdate == null
2176				&& this.mOnConversationUpdate == null
2177				&& this.mOnRosterUpdate == null
2178				&& this.mOnCaptchaRequested == null
2179				&& this.mOnUpdateBlocklist == null
2180				&& this.mOnShowErrorToast == null
2181				&& this.mOnKeyStatusUpdated == null);
2182	}
2183
2184	private void switchToForeground() {
2185		final boolean broadcastLastActivity = broadcastLastActivity();
2186		for (Conversation conversation : getConversations()) {
2187			if (conversation.getMode() == Conversation.MODE_MULTI) {
2188				conversation.getMucOptions().resetChatState();
2189			} else {
2190				conversation.setIncomingChatState(Config.DEFAULT_CHATSTATE);
2191			}
2192		}
2193		for (Account account : getAccounts()) {
2194			if (account.getStatus() == Account.State.ONLINE) {
2195				account.deactivateGracePeriod();
2196				final XmppConnection connection = account.getXmppConnection();
2197				if (connection != null ) {
2198					if (connection.getFeatures().csi()) {
2199						connection.sendActive();
2200					}
2201					if (broadcastLastActivity) {
2202						sendPresence(account, false); //send new presence but don't include idle because we are not
2203					}
2204				}
2205			}
2206		}
2207		Log.d(Config.LOGTAG, "app switched into foreground");
2208	}
2209
2210	private void switchToBackground() {
2211		final boolean broadcastLastActivity = broadcastLastActivity();
2212		for (Account account : getAccounts()) {
2213			if (account.getStatus() == Account.State.ONLINE) {
2214				XmppConnection connection = account.getXmppConnection();
2215				if (connection != null) {
2216					if (broadcastLastActivity) {
2217						sendPresence(account, true);
2218					}
2219					if (connection.getFeatures().csi()) {
2220						connection.sendInactive();
2221					}
2222				}
2223			}
2224		}
2225		this.mNotificationService.setIsInForeground(false);
2226		Log.d(Config.LOGTAG, "app switched into background");
2227	}
2228
2229	private void connectMultiModeConversations(Account account) {
2230		List<Conversation> conversations = getConversations();
2231		for (Conversation conversation : conversations) {
2232			if (conversation.getMode() == Conversation.MODE_MULTI && conversation.getAccount() == account) {
2233				joinMuc(conversation);
2234			}
2235		}
2236	}
2237
2238	public void joinMuc(Conversation conversation) {
2239		joinMuc(conversation,null, false);
2240	}
2241
2242	public void joinMuc(Conversation conversation, boolean followedInvite) {
2243		joinMuc(conversation, null, followedInvite);
2244	}
2245
2246	private void joinMuc(Conversation conversation, final OnConferenceJoined onConferenceJoined) {
2247		joinMuc(conversation,onConferenceJoined,false);
2248	}
2249
2250	private void joinMuc(Conversation conversation, final OnConferenceJoined onConferenceJoined, final boolean followedInvite) {
2251		Account account = conversation.getAccount();
2252		account.pendingConferenceJoins.remove(conversation);
2253		account.pendingConferenceLeaves.remove(conversation);
2254		if (account.getStatus() == Account.State.ONLINE) {
2255			sendPresencePacket(account, mPresenceGenerator.leave(conversation.getMucOptions()));
2256			conversation.resetMucOptions();
2257			if (onConferenceJoined != null) {
2258				conversation.getMucOptions().flagNoAutoPushConfiguration();
2259			}
2260			conversation.setHasMessagesLeftOnServer(false);
2261			fetchConferenceConfiguration(conversation, new OnConferenceConfigurationFetched() {
2262
2263				private void join(Conversation conversation) {
2264					Account account = conversation.getAccount();
2265					final MucOptions mucOptions = conversation.getMucOptions();
2266					final Jid joinJid = mucOptions.getSelf().getFullJid();
2267					Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": joining conversation " + joinJid.toString());
2268					PresencePacket packet = mPresenceGenerator.selfPresence(account, Presence.Status.ONLINE, mucOptions.nonanonymous() || onConferenceJoined != null);
2269					packet.setTo(joinJid);
2270					Element x = packet.addChild("x", "http://jabber.org/protocol/muc");
2271					if (conversation.getMucOptions().getPassword() != null) {
2272						x.addChild("password").setContent(mucOptions.getPassword());
2273					}
2274
2275					if (mucOptions.mamSupport()) {
2276						// Use MAM instead of the limited muc history to get history
2277						x.addChild("history").setAttribute("maxchars", "0");
2278					} else {
2279						// Fallback to muc history
2280						x.addChild("history").setAttribute("since", PresenceGenerator.getTimestamp(conversation.getLastMessageTransmitted().getTimestamp()));
2281					}
2282					sendPresencePacket(account, packet);
2283					if (onConferenceJoined != null) {
2284						onConferenceJoined.onConferenceJoined(conversation);
2285					}
2286					if (!joinJid.equals(conversation.getJid())) {
2287						conversation.setContactJid(joinJid);
2288						databaseBackend.updateConversation(conversation);
2289					}
2290
2291					if (mucOptions.mamSupport()) {
2292						getMessageArchiveService().catchupMUC(conversation);
2293					}
2294					if (mucOptions.membersOnly() && mucOptions.nonanonymous()) {
2295						fetchConferenceMembers(conversation);
2296						if (followedInvite && conversation.getBookmark() == null) {
2297							saveConversationAsBookmark(conversation,null);
2298						}
2299					}
2300					sendUnsentMessages(conversation);
2301				}
2302
2303				@Override
2304				public void onConferenceConfigurationFetched(Conversation conversation) {
2305					join(conversation);
2306				}
2307
2308				@Override
2309				public void onFetchFailed(final Conversation conversation, Element error) {
2310					if (error != null && "remote-server-not-found".equals(error.getName())) {
2311						conversation.getMucOptions().setError(MucOptions.Error.SERVER_NOT_FOUND);
2312						updateConversationUi();
2313					} else {
2314						join(conversation);
2315						fetchConferenceConfiguration(conversation);
2316					}
2317				}
2318			});
2319			updateConversationUi();
2320		} else {
2321			account.pendingConferenceJoins.add(conversation);
2322			conversation.resetMucOptions();
2323			conversation.setHasMessagesLeftOnServer(false);
2324			updateConversationUi();
2325		}
2326	}
2327
2328	private void fetchConferenceMembers(final Conversation conversation) {
2329		final Account account = conversation.getAccount();
2330		final AxolotlService axolotlService = account.getAxolotlService();
2331		final String[] affiliations = {"member","admin","owner"};
2332		OnIqPacketReceived callback = new OnIqPacketReceived() {
2333
2334			private int i = 0;
2335			private boolean success = true;
2336
2337			@Override
2338			public void onIqPacketReceived(Account account, IqPacket packet) {
2339
2340				Element query = packet.query("http://jabber.org/protocol/muc#admin");
2341				if (packet.getType() == IqPacket.TYPE.RESULT && query != null) {
2342					for(Element child : query.getChildren()) {
2343						if ("item".equals(child.getName())) {
2344							MucOptions.User user = AbstractParser.parseItem(conversation,child);
2345							if (!user.realJidMatchesAccount()) {
2346								boolean isNew = conversation.getMucOptions().updateUser(user);
2347								if (isNew && user.getRealJid() != null && axolotlService.hasEmptyDeviceList(user.getRealJid())) {
2348									axolotlService.fetchDeviceIds(user.getRealJid());
2349								}
2350							}
2351						}
2352					}
2353				} else {
2354					success = false;
2355					Log.d(Config.LOGTAG,account.getJid().toBareJid()+": could not request affiliation "+affiliations[i]+" in "+conversation.getJid().toBareJid());
2356				}
2357				++i;
2358				if (i >= affiliations.length) {
2359					List<Jid> members = conversation.getMucOptions().getMembers();
2360					if (success) {
2361						List<Jid> cryptoTargets = conversation.getAcceptedCryptoTargets();
2362						boolean changed = false;
2363						for(ListIterator<Jid> iterator = cryptoTargets.listIterator(); iterator.hasNext();) {
2364							Jid jid = iterator.next();
2365							if (!members.contains(jid)) {
2366								iterator.remove();
2367								Log.d(Config.LOGTAG,account.getJid().toBareJid()+": removed "+jid+" from crypto targets of "+conversation.getName());
2368								changed = true;
2369							}
2370						}
2371						if (changed) {
2372							conversation.setAcceptedCryptoTargets(cryptoTargets);
2373							updateConversation(conversation);
2374						}
2375					}
2376					Log.d(Config.LOGTAG,account.getJid().toBareJid()+": retrieved members for "+conversation.getJid().toBareJid()+": "+conversation.getMucOptions().getMembers());
2377					getAvatarService().clear(conversation);
2378					updateMucRosterUi();
2379					updateConversationUi();
2380				}
2381			}
2382		};
2383		for(String affiliation : affiliations) {
2384			sendIqPacket(account, mIqGenerator.queryAffiliation(conversation, affiliation), callback);
2385		}
2386		Log.d(Config.LOGTAG,account.getJid().toBareJid()+": fetching members for "+conversation.getName());
2387	}
2388
2389	public void providePasswordForMuc(Conversation conversation, String password) {
2390		if (conversation.getMode() == Conversation.MODE_MULTI) {
2391			conversation.getMucOptions().setPassword(password);
2392			if (conversation.getBookmark() != null) {
2393				if (respectAutojoin()) {
2394					conversation.getBookmark().setAutojoin(true);
2395				}
2396				pushBookmarks(conversation.getAccount());
2397			}
2398			updateConversation(conversation);
2399			joinMuc(conversation);
2400		}
2401	}
2402
2403	private boolean hasEnabledAccounts() {
2404		for(Account account : this.accounts) {
2405			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
2406				return true;
2407			}
2408		}
2409		return false;
2410	}
2411
2412	public void renameInMuc(final Conversation conversation, final String nick, final UiCallback<Conversation> callback) {
2413		final MucOptions options = conversation.getMucOptions();
2414		final Jid joinJid = options.createJoinJid(nick);
2415		if (options.online()) {
2416			Account account = conversation.getAccount();
2417			options.setOnRenameListener(new OnRenameListener() {
2418
2419				@Override
2420				public void onSuccess() {
2421					conversation.setContactJid(joinJid);
2422					databaseBackend.updateConversation(conversation);
2423					Bookmark bookmark = conversation.getBookmark();
2424					if (bookmark != null) {
2425						bookmark.setNick(nick);
2426						pushBookmarks(bookmark.getAccount());
2427					}
2428					callback.success(conversation);
2429				}
2430
2431				@Override
2432				public void onFailure() {
2433					callback.error(R.string.nick_in_use, conversation);
2434				}
2435			});
2436
2437			PresencePacket packet = new PresencePacket();
2438			packet.setTo(joinJid);
2439			packet.setFrom(conversation.getAccount().getJid());
2440
2441			String sig = account.getPgpSignature();
2442			if (sig != null) {
2443				packet.addChild("status").setContent("online");
2444				packet.addChild("x", "jabber:x:signed").setContent(sig);
2445			}
2446			sendPresencePacket(account, packet);
2447		} else {
2448			conversation.setContactJid(joinJid);
2449			databaseBackend.updateConversation(conversation);
2450			if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
2451				Bookmark bookmark = conversation.getBookmark();
2452				if (bookmark != null) {
2453					bookmark.setNick(nick);
2454					pushBookmarks(bookmark.getAccount());
2455				}
2456				joinMuc(conversation);
2457			}
2458		}
2459	}
2460
2461	public void leaveMuc(Conversation conversation) {
2462		leaveMuc(conversation, false);
2463	}
2464
2465	private void leaveMuc(Conversation conversation, boolean now) {
2466		Account account = conversation.getAccount();
2467		account.pendingConferenceJoins.remove(conversation);
2468		account.pendingConferenceLeaves.remove(conversation);
2469		if (account.getStatus() == Account.State.ONLINE || now) {
2470			sendPresencePacket(conversation.getAccount(), mPresenceGenerator.leave(conversation.getMucOptions()));
2471			conversation.getMucOptions().setOffline();
2472			conversation.deregisterWithBookmark();
2473			Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid() + ": leaving muc " + conversation.getJid());
2474		} else {
2475			account.pendingConferenceLeaves.add(conversation);
2476		}
2477	}
2478
2479	public String findConferenceServer(final Account account) {
2480		String server;
2481		if (account.getXmppConnection() != null) {
2482			server = account.getXmppConnection().getMucServer();
2483			if (server != null) {
2484				return server;
2485			}
2486		}
2487		for (Account other : getAccounts()) {
2488			if (other != account && other.getXmppConnection() != null) {
2489				server = other.getXmppConnection().getMucServer();
2490				if (server != null) {
2491					return server;
2492				}
2493			}
2494		}
2495		return null;
2496	}
2497
2498	public boolean createAdhocConference(final Account account,
2499									  final String subject,
2500									  final Iterable<Jid> jids,
2501									  final UiCallback<Conversation> callback) {
2502		Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": creating adhoc conference with " + jids.toString());
2503		if (account.getStatus() == Account.State.ONLINE) {
2504			try {
2505				String server = findConferenceServer(account);
2506				if (server == null) {
2507					if (callback != null) {
2508						callback.error(R.string.no_conference_server_found, null);
2509					}
2510					return false;
2511				}
2512				final Jid jid = Jid.fromParts(new BigInteger(64, getRNG()).toString(Character.MAX_RADIX), server, null);
2513				final Conversation conversation = findOrCreateConversation(account, jid, true, false, true);
2514				joinMuc(conversation, new OnConferenceJoined() {
2515					@Override
2516					public void onConferenceJoined(final Conversation conversation) {
2517						pushConferenceConfiguration(conversation, IqGenerator.defaultRoomConfiguration(), new OnConfigurationPushed() {
2518							@Override
2519							public void onPushSucceeded() {
2520								if (subject != null && !subject.trim().isEmpty()) {
2521									pushSubjectToConference(conversation, subject.trim());
2522								}
2523								for (Jid invite : jids) {
2524									invite(conversation, invite);
2525								}
2526								if (account.countPresences() > 1) {
2527									directInvite(conversation, account.getJid().toBareJid());
2528								}
2529								saveConversationAsBookmark(conversation, subject);
2530								if (callback != null) {
2531									callback.success(conversation);
2532								}
2533							}
2534
2535							@Override
2536							public void onPushFailed() {
2537								archiveConversation(conversation);
2538								if (callback != null) {
2539									callback.error(R.string.conference_creation_failed, conversation);
2540								}
2541							}
2542						});
2543					}
2544				});
2545				return true;
2546			} catch (InvalidJidException e) {
2547				if (callback != null) {
2548					callback.error(R.string.conference_creation_failed, null);
2549				}
2550				return false;
2551			}
2552		} else {
2553			if (callback != null) {
2554				callback.error(R.string.not_connected_try_again, null);
2555			}
2556			return false;
2557		}
2558	}
2559
2560	public void fetchConferenceConfiguration(final Conversation conversation) {
2561		fetchConferenceConfiguration(conversation, null);
2562	}
2563
2564	public void fetchConferenceConfiguration(final Conversation conversation, final OnConferenceConfigurationFetched callback) {
2565		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
2566		request.setTo(conversation.getJid().toBareJid());
2567		request.query("http://jabber.org/protocol/disco#info");
2568		sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
2569			@Override
2570			public void onIqPacketReceived(Account account, IqPacket packet) {
2571				Element query = packet.findChild("query","http://jabber.org/protocol/disco#info");
2572				if (packet.getType() == IqPacket.TYPE.RESULT && query != null) {
2573					ArrayList<String> features = new ArrayList<>();
2574					for (Element child : query.getChildren()) {
2575						if (child != null && child.getName().equals("feature")) {
2576							String var = child.getAttribute("var");
2577							if (var != null) {
2578								features.add(var);
2579							}
2580						}
2581					}
2582					Element form = query.findChild("x", "jabber:x:data");
2583					if (form != null) {
2584						conversation.getMucOptions().updateFormData(Data.parse(form));
2585					}
2586					conversation.getMucOptions().updateFeatures(features);
2587					if (callback != null) {
2588						callback.onConferenceConfigurationFetched(conversation);
2589					}
2590					Log.d(Config.LOGTAG,account.getJid().toBareJid()+": fetched muc configuration for "+conversation.getJid().toBareJid()+" - "+features.toString());
2591					updateConversationUi();
2592				} else if (packet.getType() == IqPacket.TYPE.ERROR) {
2593					if (callback != null) {
2594						callback.onFetchFailed(conversation, packet.getError());
2595					}
2596				}
2597			}
2598		});
2599	}
2600
2601	public void pushNodeConfiguration(Account account, final String node, final Bundle options, final OnConfigurationPushed callback) {
2602		pushNodeConfiguration(account,account.getJid().toBareJid(),node,options,callback);
2603	}
2604
2605	public void pushNodeConfiguration(Account account, final Jid jid, final String node, final Bundle options, final OnConfigurationPushed callback) {
2606		sendIqPacket(account, mIqGenerator.requestPubsubConfiguration(jid,node), new OnIqPacketReceived() {
2607			@Override
2608			public void onIqPacketReceived(Account account, IqPacket packet) {
2609				if (packet.getType() == IqPacket.TYPE.RESULT) {
2610					Element pubsub = packet.findChild("pubsub","http://jabber.org/protocol/pubsub#owner");
2611					Element configuration = pubsub == null ? null : pubsub.findChild("configure");
2612					Element x = configuration == null ? null : configuration.findChild("x","jabber:x:data");
2613					if (x != null) {
2614						Data data = Data.parse(x);
2615						data.submit(options);
2616						sendIqPacket(account, mIqGenerator.publishPubsubConfiguration(jid, node, data), new OnIqPacketReceived() {
2617							@Override
2618							public void onIqPacketReceived(Account account, IqPacket packet) {
2619								if (packet.getType() == IqPacket.TYPE.RESULT && callback != null) {
2620									callback.onPushSucceeded();
2621								} else {
2622									Log.d(Config.LOGTAG,packet.toString());
2623								}
2624							}
2625						});
2626					} else if (callback !=null) {
2627						callback.onPushFailed();
2628					}
2629				} else if (callback != null){
2630					callback.onPushFailed();
2631				}
2632			}
2633		});
2634	}
2635
2636	public void pushConferenceConfiguration(final Conversation conversation, final Bundle options, final OnConfigurationPushed callback) {
2637		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
2638		request.setTo(conversation.getJid().toBareJid());
2639		request.query("http://jabber.org/protocol/muc#owner");
2640		sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
2641			@Override
2642			public void onIqPacketReceived(Account account, IqPacket packet) {
2643				if (packet.getType() == IqPacket.TYPE.RESULT) {
2644					Data data = Data.parse(packet.query().findChild("x", "jabber:x:data"));
2645					data.submit(options);
2646					IqPacket set = new IqPacket(IqPacket.TYPE.SET);
2647					set.setTo(conversation.getJid().toBareJid());
2648					set.query("http://jabber.org/protocol/muc#owner").addChild(data);
2649					sendIqPacket(account, set, new OnIqPacketReceived() {
2650						@Override
2651						public void onIqPacketReceived(Account account, IqPacket packet) {
2652							if (callback != null) {
2653								if (packet.getType() == IqPacket.TYPE.RESULT) {
2654									callback.onPushSucceeded();
2655								} else {
2656									callback.onPushFailed();
2657								}
2658							}
2659						}
2660					});
2661				} else {
2662					if (callback != null) {
2663						callback.onPushFailed();
2664					}
2665				}
2666			}
2667		});
2668	}
2669
2670	public void pushSubjectToConference(final Conversation conference, final String subject) {
2671		MessagePacket packet = this.getMessageGenerator().conferenceSubject(conference, subject);
2672		this.sendMessagePacket(conference.getAccount(), packet);
2673		final MucOptions mucOptions = conference.getMucOptions();
2674		final MucOptions.User self = mucOptions.getSelf();
2675		if (!mucOptions.persistent() && self.getAffiliation().ranks(MucOptions.Affiliation.OWNER)) {
2676			Bundle options = new Bundle();
2677			options.putString("muc#roomconfig_persistentroom", "1");
2678			this.pushConferenceConfiguration(conference, options, null);
2679		}
2680	}
2681
2682	public void changeAffiliationInConference(final Conversation conference, Jid user, final MucOptions.Affiliation affiliation, final OnAffiliationChanged callback) {
2683		final Jid jid = user.toBareJid();
2684		IqPacket request = this.mIqGenerator.changeAffiliation(conference, jid, affiliation.toString());
2685		sendIqPacket(conference.getAccount(), request, new OnIqPacketReceived() {
2686			@Override
2687			public void onIqPacketReceived(Account account, IqPacket packet) {
2688				if (packet.getType() == IqPacket.TYPE.RESULT) {
2689					conference.getMucOptions().changeAffiliation(jid, affiliation);
2690					getAvatarService().clear(conference);
2691					callback.onAffiliationChangedSuccessful(jid);
2692				} else {
2693					callback.onAffiliationChangeFailed(jid, R.string.could_not_change_affiliation);
2694				}
2695			}
2696		});
2697	}
2698
2699	public void changeAffiliationsInConference(final Conversation conference, MucOptions.Affiliation before, MucOptions.Affiliation after) {
2700		List<Jid> jids = new ArrayList<>();
2701		for (MucOptions.User user : conference.getMucOptions().getUsers()) {
2702			if (user.getAffiliation() == before && user.getRealJid() != null) {
2703				jids.add(user.getRealJid());
2704			}
2705		}
2706		IqPacket request = this.mIqGenerator.changeAffiliation(conference, jids, after.toString());
2707		sendIqPacket(conference.getAccount(), request, mDefaultIqHandler);
2708	}
2709
2710	public void changeRoleInConference(final Conversation conference, final String nick, MucOptions.Role role, final OnRoleChanged callback) {
2711		IqPacket request = this.mIqGenerator.changeRole(conference, nick, role.toString());
2712		Log.d(Config.LOGTAG, request.toString());
2713		sendIqPacket(conference.getAccount(), request, new OnIqPacketReceived() {
2714			@Override
2715			public void onIqPacketReceived(Account account, IqPacket packet) {
2716				Log.d(Config.LOGTAG, packet.toString());
2717				if (packet.getType() == IqPacket.TYPE.RESULT) {
2718					callback.onRoleChangedSuccessful(nick);
2719				} else {
2720					callback.onRoleChangeFailed(nick, R.string.could_not_change_role);
2721				}
2722			}
2723		});
2724	}
2725
2726	private void disconnect(Account account, boolean force) {
2727		if ((account.getStatus() == Account.State.ONLINE)
2728				|| (account.getStatus() == Account.State.DISABLED)) {
2729			final XmppConnection connection = account.getXmppConnection();
2730			if (!force) {
2731				List<Conversation> conversations = getConversations();
2732				for (Conversation conversation : conversations) {
2733					if (conversation.getAccount() == account) {
2734						if (conversation.getMode() == Conversation.MODE_MULTI) {
2735							leaveMuc(conversation, true);
2736						} else {
2737							if (conversation.endOtrIfNeeded()) {
2738								Log.d(Config.LOGTAG, account.getJid().toBareJid()
2739										+ ": ended otr session with "
2740										+ conversation.getJid());
2741							}
2742						}
2743					}
2744				}
2745				sendOfflinePresence(account);
2746			}
2747			connection.disconnect(force);
2748		}
2749	}
2750
2751	@Override
2752	public IBinder onBind(Intent intent) {
2753		return mBinder;
2754	}
2755
2756	public void updateMessage(Message message) {
2757		databaseBackend.updateMessage(message);
2758		updateConversationUi();
2759	}
2760
2761	public void updateMessage(Message message, String uuid) {
2762		databaseBackend.updateMessage(message, uuid);
2763		updateConversationUi();
2764	}
2765
2766	protected void syncDirtyContacts(Account account) {
2767		for (Contact contact : account.getRoster().getContacts()) {
2768			if (contact.getOption(Contact.Options.DIRTY_PUSH)) {
2769				pushContactToServer(contact);
2770			}
2771			if (contact.getOption(Contact.Options.DIRTY_DELETE)) {
2772				deleteContactOnServer(contact);
2773			}
2774		}
2775	}
2776
2777	public void createContact(Contact contact) {
2778		boolean autoGrant = getBooleanPreference("grant_new_contacts", R.bool.grant_new_contacts);
2779		if (autoGrant) {
2780			contact.setOption(Contact.Options.PREEMPTIVE_GRANT);
2781			contact.setOption(Contact.Options.ASKING);
2782		}
2783		pushContactToServer(contact);
2784	}
2785
2786	public void onOtrSessionEstablished(Conversation conversation) {
2787		final Account account = conversation.getAccount();
2788		final Session otrSession = conversation.getOtrSession();
2789		Log.d(Config.LOGTAG,
2790				account.getJid().toBareJid() + " otr session established with "
2791						+ conversation.getJid() + "/"
2792						+ otrSession.getSessionID().getUserID());
2793		conversation.findUnsentMessagesWithEncryption(Message.ENCRYPTION_OTR, new Conversation.OnMessageFound() {
2794
2795			@Override
2796			public void onMessageFound(Message message) {
2797				SessionID id = otrSession.getSessionID();
2798				try {
2799					message.setCounterpart(Jid.fromString(id.getAccountID() + "/" + id.getUserID()));
2800				} catch (InvalidJidException e) {
2801					return;
2802				}
2803				if (message.needsUploading()) {
2804					mJingleConnectionManager.createNewConnection(message);
2805				} else {
2806					MessagePacket outPacket = mMessageGenerator.generateOtrChat(message);
2807					if (outPacket != null) {
2808						mMessageGenerator.addDelay(outPacket, message.getTimeSent());
2809						message.setStatus(Message.STATUS_SEND);
2810						databaseBackend.updateMessage(message);
2811						sendMessagePacket(account, outPacket);
2812					}
2813				}
2814				updateConversationUi();
2815			}
2816		});
2817	}
2818
2819	public boolean renewSymmetricKey(Conversation conversation) {
2820		Account account = conversation.getAccount();
2821		byte[] symmetricKey = new byte[32];
2822		this.mRandom.nextBytes(symmetricKey);
2823		Session otrSession = conversation.getOtrSession();
2824		if (otrSession != null) {
2825			MessagePacket packet = new MessagePacket();
2826			packet.setType(MessagePacket.TYPE_CHAT);
2827			packet.setFrom(account.getJid());
2828			MessageGenerator.addMessageHints(packet);
2829			packet.setAttribute("to", otrSession.getSessionID().getAccountID() + "/"
2830					+ otrSession.getSessionID().getUserID());
2831			try {
2832				packet.setBody(otrSession
2833						.transformSending(CryptoHelper.FILETRANSFER
2834								+ CryptoHelper.bytesToHex(symmetricKey))[0]);
2835				sendMessagePacket(account, packet);
2836				conversation.setSymmetricKey(symmetricKey);
2837				return true;
2838			} catch (OtrException e) {
2839				return false;
2840			}
2841		}
2842		return false;
2843	}
2844
2845	public void pushContactToServer(final Contact contact) {
2846		contact.resetOption(Contact.Options.DIRTY_DELETE);
2847		contact.setOption(Contact.Options.DIRTY_PUSH);
2848		final Account account = contact.getAccount();
2849		if (account.getStatus() == Account.State.ONLINE) {
2850			final boolean ask = contact.getOption(Contact.Options.ASKING);
2851			final boolean sendUpdates = contact
2852					.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)
2853					&& contact.getOption(Contact.Options.PREEMPTIVE_GRANT);
2854			final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
2855			iq.query(Namespace.ROSTER).addChild(contact.asElement());
2856			account.getXmppConnection().sendIqPacket(iq, mDefaultIqHandler);
2857			if (sendUpdates) {
2858				sendPresencePacket(account,
2859						mPresenceGenerator.sendPresenceUpdatesTo(contact));
2860			}
2861			if (ask) {
2862				sendPresencePacket(account,
2863						mPresenceGenerator.requestPresenceUpdatesFrom(contact));
2864			}
2865		}
2866	}
2867
2868	public void publishAvatar(Account account, Uri image, UiCallback<Avatar> callback) {
2869		final Bitmap.CompressFormat format = Config.AVATAR_FORMAT;
2870		final int size = Config.AVATAR_SIZE;
2871		final Avatar avatar = getFileBackend().getPepAvatar(image, size, format);
2872		if (avatar != null) {
2873			avatar.height = size;
2874			avatar.width = size;
2875			if (format.equals(Bitmap.CompressFormat.WEBP)) {
2876				avatar.type = "image/webp";
2877			} else if (format.equals(Bitmap.CompressFormat.JPEG)) {
2878				avatar.type = "image/jpeg";
2879			} else if (format.equals(Bitmap.CompressFormat.PNG)) {
2880				avatar.type = "image/png";
2881			}
2882			if (!getFileBackend().save(avatar)) {
2883				callback.error(R.string.error_saving_avatar, avatar);
2884				return;
2885			}
2886			publishAvatar(account, avatar, callback);
2887		} else {
2888			callback.error(R.string.error_publish_avatar_converting, null);
2889		}
2890	}
2891
2892	public void publishAvatar(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2893		IqPacket packet = this.mIqGenerator.publishAvatar(avatar);
2894		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2895
2896			@Override
2897			public void onIqPacketReceived(Account account, IqPacket result) {
2898				if (result.getType() == IqPacket.TYPE.RESULT) {
2899					final IqPacket packet = XmppConnectionService.this.mIqGenerator.publishAvatarMetadata(avatar);
2900					sendIqPacket(account, packet, new OnIqPacketReceived() {
2901						@Override
2902						public void onIqPacketReceived(Account account, IqPacket result) {
2903							if (result.getType() == IqPacket.TYPE.RESULT) {
2904								if (account.setAvatar(avatar.getFilename())) {
2905									getAvatarService().clear(account);
2906									databaseBackend.updateAccount(account);
2907								}
2908								Log.d(Config.LOGTAG,account.getJid().toBareJid()+": published avatar "+(avatar.size/1024)+"KiB");
2909								if (callback != null) {
2910									callback.success(avatar);
2911								}
2912							} else {
2913								if (callback != null) {
2914									callback.error(R.string.error_publish_avatar_server_reject,avatar);
2915								}
2916							}
2917						}
2918					});
2919				} else {
2920					Element error = result.findChild("error");
2921					Log.d(Config.LOGTAG,account.getJid().toBareJid()+": server rejected avatar "+(avatar.size/1024)+"KiB "+(error!=null?error.toString():""));
2922					if (callback != null) {
2923						callback.error(R.string.error_publish_avatar_server_reject, avatar);
2924					}
2925				}
2926			}
2927		});
2928	}
2929
2930	public void republishAvatarIfNeeded(Account account) {
2931		if (account.getAxolotlService().isPepBroken()) {
2932			Log.d(Config.LOGTAG,account.getJid().toBareJid()+": skipping republication of avatar because pep is broken");
2933			return;
2934		}
2935		IqPacket packet = this.mIqGenerator.retrieveAvatarMetaData(null);
2936		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2937
2938			private Avatar parseAvatar(IqPacket packet) {
2939				Element pubsub = packet.findChild("pubsub", "http://jabber.org/protocol/pubsub");
2940				if (pubsub != null) {
2941					Element items = pubsub.findChild("items");
2942					if (items != null) {
2943						return Avatar.parseMetadata(items);
2944					}
2945				}
2946				return null;
2947			}
2948
2949			private boolean errorIsItemNotFound(IqPacket packet) {
2950				Element error = packet.findChild("error");
2951				return packet.getType() == IqPacket.TYPE.ERROR
2952						&& error != null
2953						&& error.hasChild("item-not-found");
2954			}
2955
2956			@Override
2957			public void onIqPacketReceived(Account account, IqPacket packet) {
2958				if (packet.getType() == IqPacket.TYPE.RESULT || errorIsItemNotFound(packet)) {
2959					Avatar serverAvatar = parseAvatar(packet);
2960					if (serverAvatar == null && account.getAvatar() != null) {
2961						Avatar avatar = fileBackend.getStoredPepAvatar(account.getAvatar());
2962						if (avatar != null) {
2963							Log.d(Config.LOGTAG,account.getJid().toBareJid()+": avatar on server was null. republishing");
2964							publishAvatar(account, fileBackend.getStoredPepAvatar(account.getAvatar()), null);
2965						} else {
2966							Log.e(Config.LOGTAG, account.getJid().toBareJid()+": error rereading avatar");
2967						}
2968					}
2969				}
2970			}
2971		});
2972	}
2973
2974	public void fetchAvatar(Account account, Avatar avatar) {
2975		fetchAvatar(account, avatar, null);
2976	}
2977
2978	public void fetchAvatar(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2979		final String KEY = generateFetchKey(account, avatar);
2980		synchronized (this.mInProgressAvatarFetches) {
2981			if (!this.mInProgressAvatarFetches.contains(KEY)) {
2982				switch (avatar.origin) {
2983					case PEP:
2984						this.mInProgressAvatarFetches.add(KEY);
2985						fetchAvatarPep(account, avatar, callback);
2986						break;
2987					case VCARD:
2988						this.mInProgressAvatarFetches.add(KEY);
2989						fetchAvatarVcard(account, avatar, callback);
2990						break;
2991				}
2992			}
2993		}
2994	}
2995
2996	private void fetchAvatarPep(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2997		IqPacket packet = this.mIqGenerator.retrievePepAvatar(avatar);
2998		sendIqPacket(account, packet, new OnIqPacketReceived() {
2999
3000			@Override
3001			public void onIqPacketReceived(Account account, IqPacket result) {
3002				synchronized (mInProgressAvatarFetches) {
3003					mInProgressAvatarFetches.remove(generateFetchKey(account, avatar));
3004				}
3005				final String ERROR = account.getJid().toBareJid()
3006						+ ": fetching avatar for " + avatar.owner + " failed ";
3007				if (result.getType() == IqPacket.TYPE.RESULT) {
3008					avatar.image = mIqParser.avatarData(result);
3009					if (avatar.image != null) {
3010						if (getFileBackend().save(avatar)) {
3011							if (account.getJid().toBareJid().equals(avatar.owner)) {
3012								if (account.setAvatar(avatar.getFilename())) {
3013									databaseBackend.updateAccount(account);
3014								}
3015								getAvatarService().clear(account);
3016								updateConversationUi();
3017								updateAccountUi();
3018							} else {
3019								Contact contact = account.getRoster()
3020										.getContact(avatar.owner);
3021								contact.setAvatar(avatar);
3022								getAvatarService().clear(contact);
3023								updateConversationUi();
3024								updateRosterUi();
3025							}
3026							if (callback != null) {
3027								callback.success(avatar);
3028							}
3029							Log.d(Config.LOGTAG, account.getJid().toBareJid()
3030									+ ": successfully fetched pep avatar for " + avatar.owner);
3031							return;
3032						}
3033					} else {
3034
3035						Log.d(Config.LOGTAG, ERROR + "(parsing error)");
3036					}
3037				} else {
3038					Element error = result.findChild("error");
3039					if (error == null) {
3040						Log.d(Config.LOGTAG, ERROR + "(server error)");
3041					} else {
3042						Log.d(Config.LOGTAG, ERROR + error.toString());
3043					}
3044				}
3045				if (callback != null) {
3046					callback.error(0, null);
3047				}
3048
3049			}
3050		});
3051	}
3052
3053	private void fetchAvatarVcard(final Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
3054		IqPacket packet = this.mIqGenerator.retrieveVcardAvatar(avatar);
3055		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
3056			@Override
3057			public void onIqPacketReceived(Account account, IqPacket packet) {
3058				synchronized (mInProgressAvatarFetches) {
3059					mInProgressAvatarFetches.remove(generateFetchKey(account, avatar));
3060				}
3061				if (packet.getType() == IqPacket.TYPE.RESULT) {
3062					Element vCard = packet.findChild("vCard", "vcard-temp");
3063					Element photo = vCard != null ? vCard.findChild("PHOTO") : null;
3064					String image = photo != null ? photo.findChildContent("BINVAL") : null;
3065					if (image != null) {
3066						avatar.image = image;
3067						if (getFileBackend().save(avatar)) {
3068							Log.d(Config.LOGTAG, account.getJid().toBareJid()
3069									+ ": successfully fetched vCard avatar for " + avatar.owner);
3070							if (avatar.owner.isBareJid()) {
3071								if (account.getJid().toBareJid().equals(avatar.owner) && account.getAvatar() == null) {
3072									Log.d(Config.LOGTAG,account.getJid().toBareJid()+": had no avatar. replacing with vcard");
3073									account.setAvatar(avatar.getFilename());
3074									databaseBackend.updateAccount(account);
3075									getAvatarService().clear(account);
3076									updateAccountUi();
3077								} else {
3078									Contact contact = account.getRoster().getContact(avatar.owner);
3079									contact.setAvatar(avatar);
3080									getAvatarService().clear(contact);
3081									updateRosterUi();
3082								}
3083								updateConversationUi();
3084							} else {
3085								Conversation conversation = find(account, avatar.owner.toBareJid());
3086								if (conversation != null && conversation.getMode() == Conversation.MODE_MULTI) {
3087									MucOptions.User user = conversation.getMucOptions().findUserByFullJid(avatar.owner);
3088									if (user != null) {
3089										if (user.setAvatar(avatar)) {
3090											getAvatarService().clear(user);
3091											updateConversationUi();
3092											updateMucRosterUi();
3093										}
3094									}
3095								}
3096							}
3097						}
3098					}
3099				}
3100			}
3101		});
3102	}
3103
3104	public void checkForAvatar(Account account, final UiCallback<Avatar> callback) {
3105		IqPacket packet = this.mIqGenerator.retrieveAvatarMetaData(null);
3106		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
3107
3108			@Override
3109			public void onIqPacketReceived(Account account, IqPacket packet) {
3110				if (packet.getType() == IqPacket.TYPE.RESULT) {
3111					Element pubsub = packet.findChild("pubsub","http://jabber.org/protocol/pubsub");
3112					if (pubsub != null) {
3113						Element items = pubsub.findChild("items");
3114						if (items != null) {
3115							Avatar avatar = Avatar.parseMetadata(items);
3116							if (avatar != null) {
3117								avatar.owner = account.getJid().toBareJid();
3118								if (fileBackend.isAvatarCached(avatar)) {
3119									if (account.setAvatar(avatar.getFilename())) {
3120										databaseBackend.updateAccount(account);
3121									}
3122									getAvatarService().clear(account);
3123									callback.success(avatar);
3124								} else {
3125									fetchAvatarPep(account, avatar, callback);
3126								}
3127								return;
3128							}
3129						}
3130					}
3131				}
3132				callback.error(0, null);
3133			}
3134		});
3135	}
3136
3137	public void deleteContactOnServer(Contact contact) {
3138		contact.resetOption(Contact.Options.PREEMPTIVE_GRANT);
3139		contact.resetOption(Contact.Options.DIRTY_PUSH);
3140		contact.setOption(Contact.Options.DIRTY_DELETE);
3141		Account account = contact.getAccount();
3142		if (account.getStatus() == Account.State.ONLINE) {
3143			IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
3144			Element item = iq.query(Namespace.ROSTER).addChild("item");
3145			item.setAttribute("jid", contact.getJid().toString());
3146			item.setAttribute("subscription", "remove");
3147			account.getXmppConnection().sendIqPacket(iq, mDefaultIqHandler);
3148		}
3149	}
3150
3151	public void updateConversation(final Conversation conversation) {
3152		mDatabaseExecutor.execute(new Runnable() {
3153			@Override
3154			public void run() {
3155				databaseBackend.updateConversation(conversation);
3156			}
3157		});
3158	}
3159
3160	private void reconnectAccount(final Account account, final boolean force, final boolean interactive) {
3161		synchronized (account) {
3162			XmppConnection connection = account.getXmppConnection();
3163			if (connection == null) {
3164				connection = createConnection(account);
3165				account.setXmppConnection(connection);
3166			}
3167			boolean hasInternet = hasInternetConnection();
3168			if (!account.isOptionSet(Account.OPTION_DISABLED) && hasInternet) {
3169				if (!force) {
3170					disconnect(account, false);
3171				}
3172				Thread thread = new Thread(connection);
3173				connection.setInteractive(interactive);
3174				connection.prepareNewConnection();
3175				connection.interrupt();
3176				thread.start();
3177				scheduleWakeUpCall(Config.CONNECT_DISCO_TIMEOUT, account.getUuid().hashCode());
3178			} else {
3179				disconnect(account, force || account.getTrueStatus().isError() || !hasInternet);
3180				account.getRoster().clearPresences();
3181				connection.resetEverything();
3182				final AxolotlService axolotlService = account.getAxolotlService();
3183				if (axolotlService != null) {
3184					axolotlService.resetBrokenness();
3185				}
3186				if (!hasInternet) {
3187					account.setStatus(Account.State.NO_INTERNET);
3188				}
3189			}
3190		}
3191	}
3192
3193	public void reconnectAccountInBackground(final Account account) {
3194		new Thread(new Runnable() {
3195			@Override
3196			public void run() {
3197				reconnectAccount(account, false, true);
3198			}
3199		}).start();
3200	}
3201
3202	public void invite(Conversation conversation, Jid contact) {
3203		Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid() + ": inviting " + contact + " to " + conversation.getJid().toBareJid());
3204		MessagePacket packet = mMessageGenerator.invite(conversation, contact);
3205		sendMessagePacket(conversation.getAccount(), packet);
3206	}
3207
3208	public void directInvite(Conversation conversation, Jid jid) {
3209		MessagePacket packet = mMessageGenerator.directInvite(conversation, jid);
3210		sendMessagePacket(conversation.getAccount(), packet);
3211	}
3212
3213	public void resetSendingToWaiting(Account account) {
3214		for (Conversation conversation : getConversations()) {
3215			if (conversation.getAccount() == account) {
3216				conversation.findUnsentTextMessages(new Conversation.OnMessageFound() {
3217
3218					@Override
3219					public void onMessageFound(Message message) {
3220						markMessage(message, Message.STATUS_WAITING);
3221					}
3222				});
3223			}
3224		}
3225	}
3226
3227	public Message markMessage(final Account account, final Jid recipient, final String uuid, final int status) {
3228		return markMessage(account, recipient, uuid, status, null);
3229	}
3230
3231	public Message markMessage(final Account account, final Jid recipient, final String uuid, final int status, String errorMessage) {
3232		if (uuid == null) {
3233			return null;
3234		}
3235		for (Conversation conversation : getConversations()) {
3236			if (conversation.getJid().toBareJid().equals(recipient) && conversation.getAccount() == account) {
3237				final Message message = conversation.findSentMessageWithUuidOrRemoteId(uuid);
3238				if (message != null) {
3239					markMessage(message, status, errorMessage);
3240				}
3241				return message;
3242			}
3243		}
3244		return null;
3245	}
3246
3247	public boolean markMessage(Conversation conversation, String uuid, int status, String serverMessageId) {
3248		if (uuid == null) {
3249			return false;
3250		} else {
3251			Message message = conversation.findSentMessageWithUuid(uuid);
3252			if (message != null) {
3253				if (message.getServerMsgId() == null) {
3254					message.setServerMsgId(serverMessageId);
3255				}
3256				markMessage(message, status);
3257				return true;
3258			} else {
3259				return false;
3260			}
3261		}
3262	}
3263
3264	public void markMessage(Message message, int status) {
3265		markMessage(message, status, null);
3266	}
3267
3268
3269	public void markMessage(Message message, int status, String errorMessage) {
3270		if (status == Message.STATUS_SEND_FAILED
3271				&& (message.getStatus() == Message.STATUS_SEND_RECEIVED || message
3272				.getStatus() == Message.STATUS_SEND_DISPLAYED)) {
3273			return;
3274		}
3275		message.setErrorMessage(errorMessage);
3276		message.setStatus(status);
3277		databaseBackend.updateMessage(message);
3278		updateConversationUi();
3279	}
3280
3281	private SharedPreferences getPreferences() {
3282		return PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
3283	}
3284
3285	public long getAutomaticMessageDeletionDate() {
3286		final long timeout = getLongPreference(SettingsActivity.AUTOMATIC_MESSAGE_DELETION,R.integer.automatic_message_deletion);
3287		return timeout == 0 ? timeout : (System.currentTimeMillis() - (timeout * 1000));
3288	}
3289
3290	public long getLongPreference(String name, @IntegerRes int res) {
3291		long defaultValue = getResources().getInteger(res);
3292		try {
3293			return Long.parseLong(getPreferences().getString(name,String.valueOf(defaultValue)));
3294		} catch (NumberFormatException e) {
3295			return defaultValue;
3296		}
3297	}
3298
3299	public boolean getBooleanPreference(String name, @BoolRes int res) {
3300		return getPreferences().getBoolean(name,getResources().getBoolean(res));
3301	}
3302
3303	public boolean confirmMessages() {
3304		return getBooleanPreference("confirm_messages", R.bool.confirm_messages);
3305	}
3306
3307	public boolean allowMessageCorrection() {
3308		return getBooleanPreference("allow_message_correction", R.bool.allow_message_correction);
3309	}
3310
3311	public boolean sendChatStates() {
3312		return getBooleanPreference("chat_states", R.bool.chat_states);
3313	}
3314
3315	private boolean respectAutojoin() {
3316		return getBooleanPreference("autojoin", R.bool.autojoin);
3317	}
3318
3319	public boolean indicateReceived() {
3320		return getBooleanPreference("indicate_received", R.bool.indicate_received);
3321	}
3322
3323	public boolean useTorToConnect() {
3324		return Config.FORCE_ORBOT || getBooleanPreference("use_tor", R.bool.use_tor);
3325	}
3326
3327	public boolean showExtendedConnectionOptions() {
3328		return getBooleanPreference("show_connection_options", R.bool.show_connection_options);
3329	}
3330
3331	public boolean broadcastLastActivity() {
3332		return getBooleanPreference(SettingsActivity.BROADCAST_LAST_ACTIVITY, R.bool.last_activity);
3333	}
3334
3335	public int unreadCount() {
3336		int count = 0;
3337		for (Conversation conversation : getConversations()) {
3338			count += conversation.unreadCount();
3339		}
3340		return count;
3341	}
3342
3343
3344	public void showErrorToastInUi(int resId) {
3345		if (mOnShowErrorToast != null) {
3346			mOnShowErrorToast.onShowErrorToast(resId);
3347		}
3348	}
3349
3350	public void updateConversationUi() {
3351		if (mOnConversationUpdate != null) {
3352			mOnConversationUpdate.onConversationUpdate();
3353		}
3354	}
3355
3356	public void updateAccountUi() {
3357		if (mOnAccountUpdate != null) {
3358			mOnAccountUpdate.onAccountUpdate();
3359		}
3360	}
3361
3362	public void updateRosterUi() {
3363		if (mOnRosterUpdate != null) {
3364			mOnRosterUpdate.onRosterUpdate();
3365		}
3366	}
3367
3368	public boolean displayCaptchaRequest(Account account, String id, Data data, Bitmap captcha) {
3369		if (mOnCaptchaRequested != null) {
3370			DisplayMetrics metrics = getApplicationContext().getResources().getDisplayMetrics();
3371			Bitmap scaled = Bitmap.createScaledBitmap(captcha, (int) (captcha.getWidth() * metrics.scaledDensity),
3372					(int) (captcha.getHeight() * metrics.scaledDensity), false);
3373
3374			mOnCaptchaRequested.onCaptchaRequested(account, id, data, scaled);
3375			return true;
3376		}
3377		return false;
3378	}
3379
3380	public void updateBlocklistUi(final OnUpdateBlocklist.Status status) {
3381		if (mOnUpdateBlocklist != null) {
3382			mOnUpdateBlocklist.OnUpdateBlocklist(status);
3383		}
3384	}
3385
3386	public void updateMucRosterUi() {
3387		if (mOnMucRosterUpdate != null) {
3388			mOnMucRosterUpdate.onMucRosterUpdate();
3389		}
3390	}
3391
3392	public void keyStatusUpdated(AxolotlService.FetchStatus report) {
3393		if (mOnKeyStatusUpdated != null) {
3394			mOnKeyStatusUpdated.onKeyStatusUpdated(report);
3395		}
3396	}
3397
3398	public Account findAccountByJid(final Jid accountJid) {
3399		for (Account account : this.accounts) {
3400			if (account.getJid().toBareJid().equals(accountJid.toBareJid())) {
3401				return account;
3402			}
3403		}
3404		return null;
3405	}
3406
3407	public Conversation findConversationByUuid(String uuid) {
3408		for (Conversation conversation : getConversations()) {
3409			if (conversation.getUuid().equals(uuid)) {
3410				return conversation;
3411			}
3412		}
3413		return null;
3414	}
3415
3416	public boolean markRead(final Conversation conversation) {
3417		return markRead(conversation,true);
3418	}
3419
3420	public boolean markRead(final Conversation conversation, boolean clear) {
3421		if (clear) {
3422			mNotificationService.clear(conversation);
3423		}
3424		final List<Message> readMessages = conversation.markRead();
3425		if (readMessages.size() > 0) {
3426			Runnable runnable = new Runnable() {
3427				@Override
3428				public void run() {
3429					for (Message message : readMessages) {
3430						databaseBackend.updateMessage(message);
3431					}
3432				}
3433			};
3434			mDatabaseExecutor.execute(runnable);
3435			updateUnreadCountBadge();
3436			return true;
3437		} else {
3438			return false;
3439		}
3440	}
3441
3442	public synchronized void updateUnreadCountBadge() {
3443		int count = unreadCount();
3444		if (unreadCount != count) {
3445			Log.d(Config.LOGTAG, "update unread count to " + count);
3446			if (count > 0) {
3447				ShortcutBadger.applyCount(getApplicationContext(), count);
3448			} else {
3449				ShortcutBadger.removeCount(getApplicationContext());
3450			}
3451			unreadCount = count;
3452		}
3453	}
3454
3455	public void sendReadMarker(final Conversation conversation) {
3456		final Message markable = conversation.getLatestMarkableMessage();
3457		if (this.markRead(conversation)) {
3458			updateConversationUi();
3459		}
3460		if (confirmMessages()
3461				&& markable != null
3462				&& markable.trusted()
3463				&& markable.getRemoteMsgId() != null) {
3464			Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid() + ": sending read marker to " + markable.getCounterpart().toString());
3465			Account account = conversation.getAccount();
3466			final Jid to = markable.getCounterpart();
3467			MessagePacket packet = mMessageGenerator.confirm(account, to, markable.getRemoteMsgId());
3468			this.sendMessagePacket(conversation.getAccount(), packet);
3469		}
3470	}
3471
3472	public SecureRandom getRNG() {
3473		return this.mRandom;
3474	}
3475
3476	public MemorizingTrustManager getMemorizingTrustManager() {
3477		return this.mMemorizingTrustManager;
3478	}
3479
3480	public void setMemorizingTrustManager(MemorizingTrustManager trustManager) {
3481		this.mMemorizingTrustManager = trustManager;
3482	}
3483
3484	public void updateMemorizingTrustmanager() {
3485		final MemorizingTrustManager tm;
3486		final boolean dontTrustSystemCAs = getBooleanPreference("dont_trust_system_cas", R.bool.dont_trust_system_cas);
3487		if (dontTrustSystemCAs) {
3488			tm = new MemorizingTrustManager(getApplicationContext(), null);
3489		} else {
3490			tm = new MemorizingTrustManager(getApplicationContext());
3491		}
3492		setMemorizingTrustManager(tm);
3493	}
3494
3495	public PowerManager getPowerManager() {
3496		return this.pm;
3497	}
3498
3499	public LruCache<String, Bitmap> getBitmapCache() {
3500		return this.mBitmapCache;
3501	}
3502
3503	public void syncRosterToDisk(final Account account) {
3504		Runnable runnable = new Runnable() {
3505
3506			@Override
3507			public void run() {
3508				databaseBackend.writeRoster(account.getRoster());
3509			}
3510		};
3511		mDatabaseExecutor.execute(runnable);
3512
3513	}
3514
3515	public List<String> getKnownHosts() {
3516		final List<String> hosts = new ArrayList<>();
3517		for (final Account account : getAccounts()) {
3518			if (!hosts.contains(account.getServer().toString())) {
3519				hosts.add(account.getServer().toString());
3520			}
3521			for (final Contact contact : account.getRoster().getContacts()) {
3522				if (contact.showInRoster()) {
3523					final String server = contact.getServer().toString();
3524					if (server != null && !hosts.contains(server)) {
3525						hosts.add(server);
3526					}
3527				}
3528			}
3529		}
3530		if(Config.DOMAIN_LOCK != null && !hosts.contains(Config.DOMAIN_LOCK)) {
3531			hosts.add(Config.DOMAIN_LOCK);
3532		}
3533		if(Config.MAGIC_CREATE_DOMAIN != null && !hosts.contains(Config.MAGIC_CREATE_DOMAIN)) {
3534			hosts.add(Config.MAGIC_CREATE_DOMAIN);
3535		}
3536		return hosts;
3537	}
3538
3539	public List<String> getKnownConferenceHosts() {
3540		final ArrayList<String> mucServers = new ArrayList<>();
3541		for (final Account account : accounts) {
3542			if (account.getXmppConnection() != null) {
3543				final String server = account.getXmppConnection().getMucServer();
3544				if (server != null && !mucServers.contains(server)) {
3545					mucServers.add(server);
3546				}
3547				for(Bookmark bookmark : account.getBookmarks()) {
3548					final Jid jid = bookmark.getJid();
3549					final String s = jid == null ? null : jid.getDomainpart();
3550					if (s != null && !mucServers.contains(s)) {
3551						mucServers.add(s);
3552					}
3553				}
3554			}
3555		}
3556		return mucServers;
3557	}
3558
3559	public void sendMessagePacket(Account account, MessagePacket packet) {
3560		XmppConnection connection = account.getXmppConnection();
3561		if (connection != null) {
3562			connection.sendMessagePacket(packet);
3563		}
3564	}
3565
3566	public void sendPresencePacket(Account account, PresencePacket packet) {
3567		XmppConnection connection = account.getXmppConnection();
3568		if (connection != null) {
3569			connection.sendPresencePacket(packet);
3570		}
3571	}
3572
3573	public void sendCreateAccountWithCaptchaPacket(Account account, String id, Data data) {
3574		final XmppConnection connection = account.getXmppConnection();
3575		if (connection != null) {
3576			IqPacket request = mIqGenerator.generateCreateAccountWithCaptcha(account, id, data);
3577			connection.sendUnmodifiedIqPacket(request, connection.registrationResponseListener);
3578		}
3579	}
3580
3581	public void sendIqPacket(final Account account, final IqPacket packet, final OnIqPacketReceived callback) {
3582		final XmppConnection connection = account.getXmppConnection();
3583		if (connection != null) {
3584			connection.sendIqPacket(packet, callback);
3585		}
3586	}
3587
3588	public void sendPresence(final Account account) {
3589		sendPresence(account, checkListeners() && broadcastLastActivity());
3590	}
3591
3592	private void sendPresence(final Account account, final boolean includeIdleTimestamp) {
3593		PresencePacket packet;
3594		if (manuallyChangePresence()) {
3595			packet =  mPresenceGenerator.selfPresence(account, account.getPresenceStatus());
3596			String message = account.getPresenceStatusMessage();
3597			if (message != null && !message.isEmpty()) {
3598				packet.addChild(new Element("status").setContent(message));
3599			}
3600		} else {
3601			packet = mPresenceGenerator.selfPresence(account, getTargetPresence());
3602		}
3603		if (mLastActivity > 0 && includeIdleTimestamp) {
3604			long since = Math.min(mLastActivity, System.currentTimeMillis()); //don't send future dates
3605			packet.addChild("idle",Namespace.IDLE).setAttribute("since", AbstractGenerator.getTimestamp(since));
3606		}
3607		sendPresencePacket(account, packet);
3608	}
3609
3610	private void deactivateGracePeriod() {
3611		for(Account account : getAccounts()) {
3612			account.deactivateGracePeriod();
3613		}
3614	}
3615
3616	public void refreshAllPresences() {
3617		boolean includeIdleTimestamp = checkListeners() && broadcastLastActivity();
3618		for (Account account : getAccounts()) {
3619			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
3620				sendPresence(account, includeIdleTimestamp);
3621			}
3622		}
3623	}
3624
3625	private void refreshAllGcmTokens() {
3626		for(Account account : getAccounts()) {
3627			if (account.isOnlineAndConnected() && mPushManagementService.available(account)) {
3628				mPushManagementService.registerPushTokenOnServer(account);
3629			}
3630		}
3631	}
3632
3633	private void sendOfflinePresence(final Account account) {
3634		Log.d(Config.LOGTAG,account.getJid().toBareJid()+": sending offline presence");
3635		sendPresencePacket(account, mPresenceGenerator.sendOfflinePresence(account));
3636	}
3637
3638	public MessageGenerator getMessageGenerator() {
3639		return this.mMessageGenerator;
3640	}
3641
3642	public PresenceGenerator getPresenceGenerator() {
3643		return this.mPresenceGenerator;
3644	}
3645
3646	public IqGenerator getIqGenerator() {
3647		return this.mIqGenerator;
3648	}
3649
3650	public IqParser getIqParser() {
3651		return this.mIqParser;
3652	}
3653
3654	public JingleConnectionManager getJingleConnectionManager() {
3655		return this.mJingleConnectionManager;
3656	}
3657
3658	public MessageArchiveService getMessageArchiveService() {
3659		return this.mMessageArchiveService;
3660	}
3661
3662	public List<Contact> findContacts(Jid jid, String accountJid) {
3663		ArrayList<Contact> contacts = new ArrayList<>();
3664		for (Account account : getAccounts()) {
3665			if ((!account.isOptionSet(Account.OPTION_DISABLED) || accountJid != null)
3666					&& (accountJid == null || accountJid.equals(account.getJid().toBareJid().toString()))) {
3667				Contact contact = account.getRoster().getContactFromRoster(jid);
3668				if (contact != null) {
3669					contacts.add(contact);
3670				}
3671			}
3672		}
3673		return contacts;
3674	}
3675
3676	public Conversation findFirstMuc(Jid jid) {
3677		for(Conversation conversation : getConversations()) {
3678			if (conversation.getJid().toBareJid().equals(jid.toBareJid())
3679					&& conversation.getMode() == Conversation.MODE_MULTI) {
3680				return conversation;
3681			}
3682		}
3683		return null;
3684	}
3685
3686	public NotificationService getNotificationService() {
3687		return this.mNotificationService;
3688	}
3689
3690	public HttpConnectionManager getHttpConnectionManager() {
3691		return this.mHttpConnectionManager;
3692	}
3693
3694	public void resendFailedMessages(final Message message) {
3695		final Collection<Message> messages = new ArrayList<>();
3696		Message current = message;
3697		while (current.getStatus() == Message.STATUS_SEND_FAILED) {
3698			messages.add(current);
3699			if (current.mergeable(current.next())) {
3700				current = current.next();
3701			} else {
3702				break;
3703			}
3704		}
3705		for (final Message msg : messages) {
3706			msg.setTime(System.currentTimeMillis());
3707			markMessage(msg, Message.STATUS_WAITING);
3708			this.resendMessage(msg, false);
3709		}
3710	}
3711
3712	public void clearConversationHistory(final Conversation conversation) {
3713		final long clearDate;
3714		final String reference;
3715		if (conversation.countMessages() > 0) {
3716			Message latestMessage = conversation.getLatestMessage();
3717			clearDate = latestMessage.getTimeSent() + 1000;
3718			reference = latestMessage.getServerMsgId();
3719		} else {
3720			clearDate = System.currentTimeMillis();
3721			reference = null;
3722		}
3723		conversation.clearMessages();
3724		conversation.setHasMessagesLeftOnServer(false); //avoid messages getting loaded through mam
3725		conversation.setLastClearHistory(clearDate,reference);
3726		Runnable runnable = new Runnable() {
3727			@Override
3728			public void run() {
3729				databaseBackend.deleteMessagesInConversation(conversation);
3730				databaseBackend.updateConversation(conversation);
3731			}
3732		};
3733		mDatabaseExecutor.execute(runnable);
3734	}
3735
3736	public boolean sendBlockRequest(final Blockable blockable, boolean reportSpam) {
3737		if (blockable != null && blockable.getBlockedJid() != null) {
3738			final Jid jid = blockable.getBlockedJid();
3739			this.sendIqPacket(blockable.getAccount(), getIqGenerator().generateSetBlockRequest(jid, reportSpam), new OnIqPacketReceived() {
3740
3741				@Override
3742				public void onIqPacketReceived(final Account account, final IqPacket packet) {
3743					if (packet.getType() == IqPacket.TYPE.RESULT) {
3744						account.getBlocklist().add(jid);
3745						updateBlocklistUi(OnUpdateBlocklist.Status.BLOCKED);
3746					}
3747				}
3748			});
3749			if (removeBlockedConversations(blockable.getAccount(),jid)) {
3750				updateConversationUi();
3751				return true;
3752			} else {
3753				return false;
3754			}
3755		} else {
3756			return false;
3757		}
3758	}
3759
3760	public boolean removeBlockedConversations(final Account account, final Jid blockedJid) {
3761		boolean removed = false;
3762		synchronized (this.conversations) {
3763			boolean domainJid = blockedJid.isDomainJid();
3764			for(Conversation conversation : this.conversations) {
3765				boolean jidMatches = (domainJid && blockedJid.getDomainpart().equals(conversation.getJid().getDomainpart()))
3766						|| blockedJid.equals(conversation.getJid().toBareJid());
3767				if (conversation.getAccount() == account
3768						&& conversation.getMode() == Conversation.MODE_SINGLE
3769						&& jidMatches) {
3770					this.conversations.remove(conversation);
3771					markRead(conversation);
3772					conversation.setStatus(Conversation.STATUS_ARCHIVED);
3773					Log.d(Config.LOGTAG,account.getJid().toBareJid()+": archiving conversation "+conversation.getJid().toBareJid()+" because jid was blocked");
3774					updateConversation(conversation);
3775					removed = true;
3776				}
3777			}
3778		}
3779		return removed;
3780	}
3781
3782	public void sendUnblockRequest(final Blockable blockable) {
3783		if (blockable != null && blockable.getJid() != null) {
3784			final Jid jid = blockable.getBlockedJid();
3785			this.sendIqPacket(blockable.getAccount(), getIqGenerator().generateSetUnblockRequest(jid), new OnIqPacketReceived() {
3786				@Override
3787				public void onIqPacketReceived(final Account account, final IqPacket packet) {
3788					if (packet.getType() == IqPacket.TYPE.RESULT) {
3789						account.getBlocklist().remove(jid);
3790						updateBlocklistUi(OnUpdateBlocklist.Status.UNBLOCKED);
3791					}
3792				}
3793			});
3794		}
3795	}
3796
3797	public void publishDisplayName(Account account) {
3798		String displayName = account.getDisplayName();
3799		if (displayName != null && !displayName.isEmpty()) {
3800			IqPacket publish = mIqGenerator.publishNick(displayName);
3801			sendIqPacket(account, publish, new OnIqPacketReceived() {
3802				@Override
3803				public void onIqPacketReceived(Account account, IqPacket packet) {
3804					if (packet.getType() == IqPacket.TYPE.ERROR) {
3805						Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": could not publish nick");
3806					}
3807				}
3808			});
3809		}
3810	}
3811
3812	public ServiceDiscoveryResult getCachedServiceDiscoveryResult(Pair<String, String> key) {
3813		ServiceDiscoveryResult result = discoCache.get(key);
3814		if (result != null) {
3815			return result;
3816		} else {
3817			result = databaseBackend.findDiscoveryResult(key.first, key.second);
3818			if (result != null) {
3819				discoCache.put(key, result);
3820			}
3821			return result;
3822		}
3823	}
3824
3825	public void fetchCaps(Account account, final Jid jid, final Presence presence) {
3826		final Pair<String,String> key = new Pair<>(presence.getHash(), presence.getVer());
3827		ServiceDiscoveryResult disco = getCachedServiceDiscoveryResult(key);
3828		if (disco != null) {
3829			presence.setServiceDiscoveryResult(disco);
3830		} else {
3831			if (!account.inProgressDiscoFetches.contains(key)) {
3832				account.inProgressDiscoFetches.add(key);
3833				IqPacket request = new IqPacket(IqPacket.TYPE.GET);
3834				request.setTo(jid);
3835				request.query("http://jabber.org/protocol/disco#info");
3836				Log.d(Config.LOGTAG,account.getJid().toBareJid()+": making disco request for "+key.second+" to "+jid);
3837				sendIqPacket(account, request, new OnIqPacketReceived() {
3838					@Override
3839					public void onIqPacketReceived(Account account, IqPacket discoPacket) {
3840						if (discoPacket.getType() == IqPacket.TYPE.RESULT) {
3841							ServiceDiscoveryResult disco = new ServiceDiscoveryResult(discoPacket);
3842							if (presence.getVer().equals(disco.getVer())) {
3843								databaseBackend.insertDiscoveryResult(disco);
3844								injectServiceDiscorveryResult(account.getRoster(), presence.getHash(), presence.getVer(), disco);
3845							} else {
3846								Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": mismatch in caps for contact " + jid + " " + presence.getVer() + " vs " + disco.getVer());
3847							}
3848						}
3849						account.inProgressDiscoFetches.remove(key);
3850					}
3851				});
3852			}
3853		}
3854	}
3855
3856	private void injectServiceDiscorveryResult(Roster roster, String hash, String ver, ServiceDiscoveryResult disco) {
3857		for(Contact contact : roster.getContacts()) {
3858			for(Presence presence : contact.getPresences().getPresences().values()) {
3859				if (hash.equals(presence.getHash()) && ver.equals(presence.getVer())) {
3860					presence.setServiceDiscoveryResult(disco);
3861				}
3862			}
3863		}
3864	}
3865
3866	public void fetchMamPreferences(Account account, final OnMamPreferencesFetched callback) {
3867		final boolean legacy = account.getXmppConnection().getFeatures().mamLegacy();
3868		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
3869		request.addChild("prefs",legacy ? Namespace.MAM_LEGACY : Namespace.MAM);
3870		sendIqPacket(account, request, new OnIqPacketReceived() {
3871			@Override
3872			public void onIqPacketReceived(Account account, IqPacket packet) {
3873				Element prefs = packet.findChild("prefs",legacy ? Namespace.MAM_LEGACY : Namespace.MAM);
3874				if (packet.getType() == IqPacket.TYPE.RESULT && prefs != null) {
3875					callback.onPreferencesFetched(prefs);
3876				} else {
3877					callback.onPreferencesFetchFailed();
3878				}
3879			}
3880		});
3881	}
3882
3883	public PushManagementService getPushManagementService() {
3884		return mPushManagementService;
3885	}
3886
3887	public Account getPendingAccount() {
3888		Account pending = null;
3889		for(Account account : getAccounts()) {
3890			if (account.isOptionSet(Account.OPTION_REGISTER)) {
3891				pending = account;
3892			} else {
3893				return null;
3894			}
3895		}
3896		return pending;
3897	}
3898
3899	public void changeStatus(Account account, Presence.Status status, String statusMessage, boolean send) {
3900		if (!statusMessage.isEmpty()) {
3901			databaseBackend.insertPresenceTemplate(new PresenceTemplate(status, statusMessage));
3902		}
3903		changeStatusReal(account, status, statusMessage, send);
3904	}
3905
3906	private void changeStatusReal(Account account, Presence.Status status, String statusMessage, boolean send) {
3907		account.setPresenceStatus(status);
3908		account.setPresenceStatusMessage(statusMessage);
3909		databaseBackend.updateAccount(account);
3910		if (!account.isOptionSet(Account.OPTION_DISABLED) && send) {
3911			sendPresence(account);
3912		}
3913	}
3914
3915	public void changeStatus(Presence.Status status, String statusMessage) {
3916		if (!statusMessage.isEmpty()) {
3917			databaseBackend.insertPresenceTemplate(new PresenceTemplate(status, statusMessage));
3918		}
3919		for(Account account : getAccounts()) {
3920			changeStatusReal(account, status, statusMessage, true);
3921		}
3922	}
3923
3924	public List<PresenceTemplate> getPresenceTemplates(Account account) {
3925		List<PresenceTemplate> templates = databaseBackend.getPresenceTemplates();
3926		for(PresenceTemplate template : account.getSelfContact().getPresences().asTemplates()) {
3927			if (!templates.contains(template)) {
3928				templates.add(0, template);
3929			}
3930		}
3931		return templates;
3932	}
3933
3934	public void saveConversationAsBookmark(Conversation conversation, String name) {
3935		Account account = conversation.getAccount();
3936		Bookmark bookmark = new Bookmark(account, conversation.getJid().toBareJid());
3937		if (!conversation.getJid().isBareJid()) {
3938			bookmark.setNick(conversation.getJid().getResourcepart());
3939		}
3940		if (name != null && !name.trim().isEmpty()) {
3941			bookmark.setBookmarkName(name.trim());
3942		}
3943		bookmark.setAutojoin(getPreferences().getBoolean("autojoin",getResources().getBoolean(R.bool.autojoin)));
3944		account.getBookmarks().add(bookmark);
3945		pushBookmarks(account);
3946		conversation.setBookmark(bookmark);
3947	}
3948
3949	public boolean verifyFingerprints(Contact contact, List<XmppUri.Fingerprint> fingerprints) {
3950		boolean needsRosterWrite = false;
3951		boolean performedVerification = false;
3952		final AxolotlService axolotlService = contact.getAccount().getAxolotlService();
3953		for(XmppUri.Fingerprint fp : fingerprints) {
3954			if (fp.type == XmppUri.FingerprintType.OTR) {
3955				performedVerification |= contact.addOtrFingerprint(fp.fingerprint);
3956				needsRosterWrite |= performedVerification;
3957			} else if (fp.type == XmppUri.FingerprintType.OMEMO) {
3958				String fingerprint = "05"+fp.fingerprint.replaceAll("\\s","");
3959				FingerprintStatus fingerprintStatus = axolotlService.getFingerprintTrust(fingerprint);
3960				if (fingerprintStatus != null) {
3961					if (!fingerprintStatus.isVerified()) {
3962						performedVerification = true;
3963						axolotlService.setFingerprintTrust(fingerprint,fingerprintStatus.toVerified());
3964					}
3965				} else {
3966					axolotlService.preVerifyFingerprint(contact,fingerprint);
3967				}
3968			}
3969		}
3970		if (needsRosterWrite) {
3971			syncRosterToDisk(contact.getAccount());
3972		}
3973		return performedVerification;
3974	}
3975
3976	public boolean verifyFingerprints(Account account, List<XmppUri.Fingerprint> fingerprints) {
3977		final AxolotlService axolotlService = account.getAxolotlService();
3978		boolean verifiedSomething = false;
3979		for(XmppUri.Fingerprint fp : fingerprints) {
3980			if (fp.type == XmppUri.FingerprintType.OMEMO) {
3981				String fingerprint = "05"+fp.fingerprint.replaceAll("\\s","");
3982				Log.d(Config.LOGTAG,"trying to verify own fp="+fingerprint);
3983				FingerprintStatus fingerprintStatus = axolotlService.getFingerprintTrust(fingerprint);
3984				if (fingerprintStatus != null) {
3985					if (!fingerprintStatus.isVerified()) {
3986						axolotlService.setFingerprintTrust(fingerprint,fingerprintStatus.toVerified());
3987						verifiedSomething = true;
3988					}
3989				} else {
3990					axolotlService.preVerifyFingerprint(account,fingerprint);
3991					verifiedSomething = true;
3992				}
3993			}
3994		}
3995		return verifiedSomething;
3996	}
3997
3998	public boolean blindTrustBeforeVerification() {
3999		return getBooleanPreference(SettingsActivity.BLIND_TRUST_BEFORE_VERIFICATION,R.bool.btbv);
4000	}
4001
4002	public ShortcutService getShortcutService() {
4003		return mShortcutService;
4004	}
4005
4006	public interface OnMamPreferencesFetched {
4007		void onPreferencesFetched(Element prefs);
4008		void onPreferencesFetchFailed();
4009	}
4010
4011	public void pushMamPreferences(Account account, Element prefs) {
4012		IqPacket set = new IqPacket(IqPacket.TYPE.SET);
4013		set.addChild(prefs);
4014		sendIqPacket(account, set, null);
4015	}
4016
4017	public interface OnAccountCreated {
4018		void onAccountCreated(Account account);
4019
4020		void informUser(int r);
4021	}
4022
4023	public interface OnMoreMessagesLoaded {
4024		void onMoreMessagesLoaded(int count, Conversation conversation);
4025
4026		void informUser(int r);
4027	}
4028
4029	public interface OnAccountPasswordChanged {
4030		void onPasswordChangeSucceeded();
4031
4032		void onPasswordChangeFailed();
4033	}
4034
4035	public interface OnAffiliationChanged {
4036		void onAffiliationChangedSuccessful(Jid jid);
4037
4038		void onAffiliationChangeFailed(Jid jid, int resId);
4039	}
4040
4041	public interface OnRoleChanged {
4042		void onRoleChangedSuccessful(String nick);
4043
4044		void onRoleChangeFailed(String nick, int resid);
4045	}
4046
4047	public interface OnConversationUpdate {
4048		void onConversationUpdate();
4049	}
4050
4051	public interface OnAccountUpdate {
4052		void onAccountUpdate();
4053	}
4054
4055	public interface OnCaptchaRequested {
4056		void onCaptchaRequested(Account account,
4057								String id,
4058								Data data,
4059								Bitmap captcha);
4060	}
4061
4062	public interface OnRosterUpdate {
4063		void onRosterUpdate();
4064	}
4065
4066	public interface OnMucRosterUpdate {
4067		void onMucRosterUpdate();
4068	}
4069
4070	public interface OnConferenceConfigurationFetched {
4071		void onConferenceConfigurationFetched(Conversation conversation);
4072
4073		void onFetchFailed(Conversation conversation, Element error);
4074	}
4075
4076	public interface OnConferenceJoined {
4077		void onConferenceJoined(Conversation conversation);
4078	}
4079
4080	public interface OnConfigurationPushed {
4081		void onPushSucceeded();
4082
4083		void onPushFailed();
4084	}
4085
4086	public interface OnShowErrorToast {
4087		void onShowErrorToast(int resId);
4088	}
4089
4090	public class XmppConnectionBinder extends Binder {
4091		public XmppConnectionService getService() {
4092			return XmppConnectionService.this;
4093		}
4094	}
4095}