1package eu.siacs.conversations.ui;
   2
   3import android.Manifest;
   4import android.annotation.SuppressLint;
   5import android.annotation.TargetApi;
   6import android.app.ActionBar;
   7import android.app.Activity;
   8import android.app.AlertDialog;
   9import android.app.AlertDialog.Builder;
  10import android.app.PendingIntent;
  11import android.content.ActivityNotFoundException;
  12import android.content.ClipData;
  13import android.content.ClipboardManager;
  14import android.content.ComponentName;
  15import android.content.Context;
  16import android.content.DialogInterface;
  17import android.content.Intent;
  18import android.content.IntentSender.SendIntentException;
  19import android.content.ServiceConnection;
  20import android.content.SharedPreferences;
  21import android.content.pm.PackageManager;
  22import android.content.pm.ResolveInfo;
  23import android.content.res.Resources;
  24import android.content.res.TypedArray;
  25import android.graphics.Bitmap;
  26import android.graphics.Color;
  27import android.graphics.Point;
  28import android.graphics.drawable.BitmapDrawable;
  29import android.graphics.drawable.Drawable;
  30import android.net.ConnectivityManager;
  31import android.net.Uri;
  32import android.os.AsyncTask;
  33import android.os.Build;
  34import android.os.Bundle;
  35import android.os.Handler;
  36import android.os.IBinder;
  37import android.os.PowerManager;
  38import android.os.SystemClock;
  39import android.preference.PreferenceManager;
  40import android.support.v4.content.ContextCompat;
  41import android.support.v7.app.AppCompatActivity;
  42import android.text.InputType;
  43import android.util.DisplayMetrics;
  44import android.util.Pair;
  45import android.view.MenuItem;
  46import android.view.View;
  47import android.view.inputmethod.InputMethodManager;
  48import android.widget.EditText;
  49import android.widget.ImageView;
  50import android.widget.Toast;
  51
  52import net.java.otr4j.session.SessionID;
  53
  54import java.io.FileNotFoundException;
  55import java.lang.ref.WeakReference;
  56import java.util.ArrayList;
  57import java.util.Collections;
  58import java.util.List;
  59import java.util.Map;
  60import java.util.concurrent.RejectedExecutionException;
  61import java.util.concurrent.atomic.AtomicInteger;
  62
  63import eu.siacs.conversations.Config;
  64import eu.siacs.conversations.R;
  65import eu.siacs.conversations.crypto.PgpEngine;
  66import eu.siacs.conversations.entities.Account;
  67import eu.siacs.conversations.entities.Contact;
  68import eu.siacs.conversations.entities.Conversation;
  69import eu.siacs.conversations.entities.Message;
  70import eu.siacs.conversations.entities.MucOptions;
  71import eu.siacs.conversations.entities.Presences;
  72import eu.siacs.conversations.services.AvatarService;
  73import eu.siacs.conversations.services.BarcodeProvider;
  74import eu.siacs.conversations.services.XmppConnectionService;
  75import eu.siacs.conversations.services.XmppConnectionService.XmppConnectionBinder;
  76import eu.siacs.conversations.utils.CryptoHelper;
  77import eu.siacs.conversations.utils.ExceptionHelper;
  78import eu.siacs.conversations.utils.UIHelper;
  79import eu.siacs.conversations.xmpp.OnKeyStatusUpdated;
  80import eu.siacs.conversations.xmpp.OnUpdateBlocklist;
  81import eu.siacs.conversations.xmpp.jid.InvalidJidException;
  82import eu.siacs.conversations.xmpp.jid.Jid;
  83
  84public abstract class XmppActivity extends AppCompatActivity {
  85
  86	public static final String EXTRA_ACCOUNT = "account";
  87	protected static final int REQUEST_ANNOUNCE_PGP = 0x0101;
  88	protected static final int REQUEST_INVITE_TO_CONVERSATION = 0x0102;
  89	protected static final int REQUEST_CHOOSE_PGP_ID = 0x0103;
  90	protected static final int REQUEST_BATTERY_OP = 0x13849ff;
  91	public XmppConnectionService xmppConnectionService;
  92	public boolean xmppConnectionServiceBound = false;
  93	protected boolean registeredListeners = false;
  94
  95	protected int mPrimaryTextColor;
  96	protected int mSecondaryTextColor;
  97	protected int mTertiaryTextColor;
  98	protected int mPrimaryBackgroundColor;
  99	protected int mSecondaryBackgroundColor;
 100	protected int mColorRed;
 101	protected int mColorOrange;
 102	protected int mColorGreen;
 103	protected int mPrimaryColor;
 104
 105	protected boolean mUseSubject = true;
 106	protected int mTheme;
 107	protected boolean mUsingEnterKey = false;
 108	protected Toast mToast;
 109	protected Runnable onOpenPGPKeyPublished = () -> Toast.makeText(XmppActivity.this, R.string.openpgp_has_been_published, Toast.LENGTH_SHORT).show();
 110	protected ConferenceInvite mPendingConferenceInvite = null;
 111	protected ServiceConnection mConnection = new ServiceConnection() {
 112
 113		@Override
 114		public void onServiceConnected(ComponentName className, IBinder service) {
 115			XmppConnectionBinder binder = (XmppConnectionBinder) service;
 116			xmppConnectionService = binder.getService();
 117			xmppConnectionServiceBound = true;
 118			if (!registeredListeners && shouldRegisterListeners()) {
 119				registerListeners();
 120				registeredListeners = true;
 121			}
 122			onBackendConnected();
 123		}
 124
 125		@Override
 126		public void onServiceDisconnected(ComponentName arg0) {
 127			xmppConnectionServiceBound = false;
 128		}
 129	};
 130	private DisplayMetrics metrics;
 131	private long mLastUiRefresh = 0;
 132	private Handler mRefreshUiHandler = new Handler();
 133	private Runnable mRefreshUiRunnable = () -> {
 134		mLastUiRefresh = SystemClock.elapsedRealtime();
 135		refreshUiReal();
 136	};
 137	private UiCallback<Conversation> adhocCallback = new UiCallback<Conversation>() {
 138		@Override
 139		public void success(final Conversation conversation) {
 140			runOnUiThread(() -> {
 141				switchToConversation(conversation);
 142				hideToast();
 143			});
 144		}
 145
 146		@Override
 147		public void error(final int errorCode, Conversation object) {
 148			runOnUiThread(() -> replaceToast(getString(errorCode)));
 149		}
 150
 151		@Override
 152		public void userInputRequried(PendingIntent pi, Conversation object) {
 153
 154		}
 155	};
 156
 157	public static boolean cancelPotentialWork(Message message, ImageView imageView) {
 158		final BitmapWorkerTask bitmapWorkerTask = getBitmapWorkerTask(imageView);
 159
 160		if (bitmapWorkerTask != null) {
 161			final Message oldMessage = bitmapWorkerTask.message;
 162			if (oldMessage == null || message != oldMessage) {
 163				bitmapWorkerTask.cancel(true);
 164			} else {
 165				return false;
 166			}
 167		}
 168		return true;
 169	}
 170
 171	private static BitmapWorkerTask getBitmapWorkerTask(ImageView imageView) {
 172		if (imageView != null) {
 173			final Drawable drawable = imageView.getDrawable();
 174			if (drawable instanceof AsyncDrawable) {
 175				final AsyncDrawable asyncDrawable = (AsyncDrawable) drawable;
 176				return asyncDrawable.getBitmapWorkerTask();
 177			}
 178		}
 179		return null;
 180	}
 181
 182	protected void hideToast() {
 183		if (mToast != null) {
 184			mToast.cancel();
 185		}
 186	}
 187
 188	protected void replaceToast(String msg) {
 189		replaceToast(msg, true);
 190	}
 191
 192	protected void replaceToast(String msg, boolean showlong) {
 193		hideToast();
 194		mToast = Toast.makeText(this, msg, showlong ? Toast.LENGTH_LONG : Toast.LENGTH_SHORT);
 195		mToast.show();
 196	}
 197
 198	protected final void refreshUi() {
 199		final long diff = SystemClock.elapsedRealtime() - mLastUiRefresh;
 200		if (diff > Config.REFRESH_UI_INTERVAL) {
 201			mRefreshUiHandler.removeCallbacks(mRefreshUiRunnable);
 202			runOnUiThread(mRefreshUiRunnable);
 203		} else {
 204			final long next = Config.REFRESH_UI_INTERVAL - diff;
 205			mRefreshUiHandler.removeCallbacks(mRefreshUiRunnable);
 206			mRefreshUiHandler.postDelayed(mRefreshUiRunnable, next);
 207		}
 208	}
 209
 210	abstract protected void refreshUiReal();
 211
 212	@Override
 213	protected void onStart() {
 214		super.onStart();
 215		if (!xmppConnectionServiceBound) {
 216			connectToBackend();
 217		} else {
 218			if (!registeredListeners) {
 219				this.registerListeners();
 220				this.registeredListeners = true;
 221			}
 222			this.onBackendConnected();
 223		}
 224	}
 225
 226	@TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
 227	protected boolean shouldRegisterListeners() {
 228		if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
 229			return !isDestroyed() && !isFinishing();
 230		} else {
 231			return !isFinishing();
 232		}
 233	}
 234
 235	public void connectToBackend() {
 236		Intent intent = new Intent(this, XmppConnectionService.class);
 237		intent.setAction("ui");
 238		startService(intent);
 239		bindService(intent, mConnection, Context.BIND_AUTO_CREATE);
 240	}
 241
 242	@Override
 243	protected void onStop() {
 244		super.onStop();
 245		if (xmppConnectionServiceBound) {
 246			if (registeredListeners) {
 247				this.unregisterListeners();
 248				this.registeredListeners = false;
 249			}
 250			unbindService(mConnection);
 251			xmppConnectionServiceBound = false;
 252		}
 253	}
 254
 255	protected void hideKeyboard() {
 256		final InputMethodManager inputManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
 257		View focus = getCurrentFocus();
 258		if (focus != null && inputManager != null) {
 259			inputManager.hideSoftInputFromWindow(focus.getWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS);
 260		}
 261	}
 262
 263	public boolean hasPgp() {
 264		return xmppConnectionService.getPgpEngine() != null;
 265	}
 266
 267	public void showInstallPgpDialog() {
 268		Builder builder = new AlertDialog.Builder(this);
 269		builder.setTitle(getString(R.string.openkeychain_required));
 270		builder.setIconAttribute(android.R.attr.alertDialogIcon);
 271		builder.setMessage(getText(R.string.openkeychain_required_long));
 272		builder.setNegativeButton(getString(R.string.cancel), null);
 273		builder.setNeutralButton(getString(R.string.restart),
 274				(dialog, which) -> {
 275					if (xmppConnectionServiceBound) {
 276						unbindService(mConnection);
 277						xmppConnectionServiceBound = false;
 278					}
 279					stopService(new Intent(XmppActivity.this,
 280							XmppConnectionService.class));
 281					finish();
 282				});
 283		builder.setPositiveButton(getString(R.string.install),
 284				(dialog, which) -> {
 285					Uri uri = Uri
 286							.parse("market://details?id=org.sufficientlysecure.keychain");
 287					Intent marketIntent = new Intent(Intent.ACTION_VIEW,
 288							uri);
 289					PackageManager manager = getApplicationContext()
 290							.getPackageManager();
 291					List<ResolveInfo> infos = manager
 292							.queryIntentActivities(marketIntent, 0);
 293					if (infos.size() > 0) {
 294						startActivity(marketIntent);
 295					} else {
 296						uri = Uri.parse("http://www.openkeychain.org/");
 297						Intent browserIntent = new Intent(
 298								Intent.ACTION_VIEW, uri);
 299						startActivity(browserIntent);
 300					}
 301					finish();
 302				});
 303		builder.create().show();
 304	}
 305
 306	abstract void onBackendConnected();
 307
 308	protected void registerListeners() {
 309		if (this instanceof XmppConnectionService.OnConversationUpdate) {
 310			this.xmppConnectionService.setOnConversationListChangedListener((XmppConnectionService.OnConversationUpdate) this);
 311		}
 312		if (this instanceof XmppConnectionService.OnAccountUpdate) {
 313			this.xmppConnectionService.setOnAccountListChangedListener((XmppConnectionService.OnAccountUpdate) this);
 314		}
 315		if (this instanceof XmppConnectionService.OnCaptchaRequested) {
 316			this.xmppConnectionService.setOnCaptchaRequestedListener((XmppConnectionService.OnCaptchaRequested) this);
 317		}
 318		if (this instanceof XmppConnectionService.OnRosterUpdate) {
 319			this.xmppConnectionService.setOnRosterUpdateListener((XmppConnectionService.OnRosterUpdate) this);
 320		}
 321		if (this instanceof XmppConnectionService.OnMucRosterUpdate) {
 322			this.xmppConnectionService.setOnMucRosterUpdateListener((XmppConnectionService.OnMucRosterUpdate) this);
 323		}
 324		if (this instanceof OnUpdateBlocklist) {
 325			this.xmppConnectionService.setOnUpdateBlocklistListener((OnUpdateBlocklist) this);
 326		}
 327		if (this instanceof XmppConnectionService.OnShowErrorToast) {
 328			this.xmppConnectionService.setOnShowErrorToastListener((XmppConnectionService.OnShowErrorToast) this);
 329		}
 330		if (this instanceof OnKeyStatusUpdated) {
 331			this.xmppConnectionService.setOnKeyStatusUpdatedListener((OnKeyStatusUpdated) this);
 332		}
 333	}
 334
 335	protected void unregisterListeners() {
 336		if (this instanceof XmppConnectionService.OnConversationUpdate) {
 337			this.xmppConnectionService.removeOnConversationListChangedListener();
 338		}
 339		if (this instanceof XmppConnectionService.OnAccountUpdate) {
 340			this.xmppConnectionService.removeOnAccountListChangedListener();
 341		}
 342		if (this instanceof XmppConnectionService.OnCaptchaRequested) {
 343			this.xmppConnectionService.removeOnCaptchaRequestedListener();
 344		}
 345		if (this instanceof XmppConnectionService.OnRosterUpdate) {
 346			this.xmppConnectionService.removeOnRosterUpdateListener();
 347		}
 348		if (this instanceof XmppConnectionService.OnMucRosterUpdate) {
 349			this.xmppConnectionService.removeOnMucRosterUpdateListener();
 350		}
 351		if (this instanceof OnUpdateBlocklist) {
 352			this.xmppConnectionService.removeOnUpdateBlocklistListener();
 353		}
 354		if (this instanceof XmppConnectionService.OnShowErrorToast) {
 355			this.xmppConnectionService.removeOnShowErrorToastListener();
 356		}
 357		if (this instanceof OnKeyStatusUpdated) {
 358			this.xmppConnectionService.removeOnNewKeysAvailableListener();
 359		}
 360	}
 361
 362	@Override
 363	public boolean onOptionsItemSelected(final MenuItem item) {
 364		switch (item.getItemId()) {
 365			case R.id.action_settings:
 366				startActivity(new Intent(this, SettingsActivity.class));
 367				break;
 368			case R.id.action_accounts:
 369				startActivity(new Intent(this, ManageAccountActivity.class));
 370				break;
 371			case android.R.id.home:
 372				finish();
 373				break;
 374			case R.id.action_show_qr_code:
 375				showQrCode();
 376				break;
 377		}
 378		return super.onOptionsItemSelected(item);
 379	}
 380
 381	@Override
 382	protected void onCreate(Bundle savedInstanceState) {
 383		super.onCreate(savedInstanceState);
 384		metrics = getResources().getDisplayMetrics();
 385		ExceptionHelper.init(getApplicationContext());
 386
 387		mPrimaryTextColor = ContextCompat.getColor(this, R.color.black87);
 388		mSecondaryTextColor = ContextCompat.getColor(this, R.color.black54);
 389		mTertiaryTextColor = ContextCompat.getColor(this, R.color.black12);
 390		mColorRed = ContextCompat.getColor(this, R.color.red800);
 391		mColorOrange = ContextCompat.getColor(this, R.color.orange500);
 392		mColorGreen = ContextCompat.getColor(this, R.color.green500);
 393		mPrimaryColor = ContextCompat.getColor(this, R.color.primary500);
 394		mPrimaryBackgroundColor = ContextCompat.getColor(this, R.color.grey50);
 395		mSecondaryBackgroundColor = ContextCompat.getColor(this, R.color.grey200);
 396
 397		this.mTheme = findTheme();
 398		if (isDarkTheme()) {
 399			mPrimaryTextColor = ContextCompat.getColor(this, R.color.white);
 400			mSecondaryTextColor = ContextCompat.getColor(this, R.color.white70);
 401			mTertiaryTextColor = ContextCompat.getColor(this, R.color.white12);
 402			mPrimaryBackgroundColor = ContextCompat.getColor(this, R.color.grey800);
 403			mSecondaryBackgroundColor = ContextCompat.getColor(this, R.color.grey900);
 404		}
 405		setTheme(this.mTheme);
 406
 407		this.mUsingEnterKey = usingEnterKey();
 408		mUseSubject = getPreferences().getBoolean("use_subject", getResources().getBoolean(R.bool.use_subject));
 409		final ActionBar ab = getActionBar();
 410		if (ab != null) {
 411			ab.setDisplayHomeAsUpEnabled(true);
 412		}
 413	}
 414
 415	public boolean isDarkTheme() {
 416		return this.mTheme == R.style.ConversationsTheme_Dark || this.mTheme == R.style.ConversationsTheme_Dark_LargerText;
 417	}
 418
 419	public int getThemeResource(int r_attr_name, int r_drawable_def) {
 420		int[] attrs = {r_attr_name};
 421		TypedArray ta = this.getTheme().obtainStyledAttributes(attrs);
 422
 423		int res = ta.getResourceId(0, r_drawable_def);
 424		ta.recycle();
 425
 426		return res;
 427	}
 428
 429	protected boolean isOptimizingBattery() {
 430		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 431			final PowerManager pm = (PowerManager) getSystemService(POWER_SERVICE);
 432			return pm != null
 433					&& !pm.isIgnoringBatteryOptimizations(getPackageName());
 434		} else {
 435			return false;
 436		}
 437	}
 438
 439	protected boolean isAffectedByDataSaver() {
 440		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 441			final ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
 442			return cm != null
 443					&& cm.isActiveNetworkMetered()
 444					&& cm.getRestrictBackgroundStatus() == ConnectivityManager.RESTRICT_BACKGROUND_STATUS_ENABLED;
 445		} else {
 446			return false;
 447		}
 448	}
 449
 450	protected boolean usingEnterKey() {
 451		return getPreferences().getBoolean("display_enter_key", getResources().getBoolean(R.bool.display_enter_key));
 452	}
 453
 454	protected SharedPreferences getPreferences() {
 455		return PreferenceManager
 456				.getDefaultSharedPreferences(getApplicationContext());
 457	}
 458
 459	public boolean useSubjectToIdentifyConference() {
 460		return mUseSubject;
 461	}
 462
 463	public void switchToConversation(Conversation conversation) {
 464		switchToConversation(conversation, null, false);
 465	}
 466
 467	public void switchToConversation(Conversation conversation, String text,
 468	                                 boolean newTask) {
 469		switchToConversation(conversation, text, null, false, newTask);
 470	}
 471
 472	public void highlightInMuc(Conversation conversation, String nick) {
 473		switchToConversation(conversation, null, nick, false, false);
 474	}
 475
 476	public void privateMsgInMuc(Conversation conversation, String nick) {
 477		switchToConversation(conversation, null, nick, true, false);
 478	}
 479
 480	private void switchToConversation(Conversation conversation, String text, String nick, boolean pm, boolean newTask) {
 481		Intent viewConversationIntent = new Intent(this,
 482				ConversationActivity.class);
 483		viewConversationIntent.setAction(ConversationActivity.ACTION_VIEW_CONVERSATION);
 484		viewConversationIntent.putExtra(ConversationActivity.CONVERSATION,
 485				conversation.getUuid());
 486		if (text != null) {
 487			viewConversationIntent.putExtra(ConversationActivity.TEXT, text);
 488		}
 489		if (nick != null) {
 490			viewConversationIntent.putExtra(ConversationActivity.NICK, nick);
 491			viewConversationIntent.putExtra(ConversationActivity.PRIVATE_MESSAGE, pm);
 492		}
 493		if (newTask) {
 494			viewConversationIntent.setFlags(viewConversationIntent.getFlags()
 495					| Intent.FLAG_ACTIVITY_NEW_TASK
 496					| Intent.FLAG_ACTIVITY_SINGLE_TOP);
 497		} else {
 498			viewConversationIntent.setFlags(viewConversationIntent.getFlags()
 499					| Intent.FLAG_ACTIVITY_CLEAR_TOP);
 500		}
 501		startActivity(viewConversationIntent);
 502		finish();
 503	}
 504
 505	public void switchToContactDetails(Contact contact) {
 506		switchToContactDetails(contact, null);
 507	}
 508
 509	public void switchToContactDetails(Contact contact, String messageFingerprint) {
 510		Intent intent = new Intent(this, ContactDetailsActivity.class);
 511		intent.setAction(ContactDetailsActivity.ACTION_VIEW_CONTACT);
 512		intent.putExtra(EXTRA_ACCOUNT, contact.getAccount().getJid().toBareJid().toString());
 513		intent.putExtra("contact", contact.getJid().toString());
 514		intent.putExtra("fingerprint", messageFingerprint);
 515		startActivity(intent);
 516	}
 517
 518	public void switchToAccount(Account account) {
 519		switchToAccount(account, false);
 520	}
 521
 522	public void switchToAccount(Account account, boolean init) {
 523		Intent intent = new Intent(this, EditAccountActivity.class);
 524		intent.putExtra("jid", account.getJid().toBareJid().toString());
 525		intent.putExtra("init", init);
 526		if (init) {
 527			intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NO_ANIMATION);
 528		}
 529		startActivity(intent);
 530		if (init) {
 531			overridePendingTransition(0, 0);
 532		}
 533	}
 534
 535	protected void delegateUriPermissionsToService(Uri uri) {
 536		Intent intent = new Intent(this,XmppConnectionService.class);
 537		intent.setAction(Intent.ACTION_SEND);
 538		intent.setData(uri);
 539		intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
 540		startService(intent);
 541	}
 542
 543	protected void inviteToConversation(Conversation conversation) {
 544		Intent intent = new Intent(getApplicationContext(),
 545				ChooseContactActivity.class);
 546		List<String> contacts = new ArrayList<>();
 547		if (conversation.getMode() == Conversation.MODE_MULTI) {
 548			for (MucOptions.User user : conversation.getMucOptions().getUsers(false)) {
 549				Jid jid = user.getRealJid();
 550				if (jid != null) {
 551					contacts.add(jid.toBareJid().toString());
 552				}
 553			}
 554		} else {
 555			contacts.add(conversation.getJid().toBareJid().toString());
 556		}
 557		intent.putExtra("filter_contacts", contacts.toArray(new String[contacts.size()]));
 558		intent.putExtra("conversation", conversation.getUuid());
 559		intent.putExtra("multiple", true);
 560		intent.putExtra("show_enter_jid", true);
 561		intent.putExtra(EXTRA_ACCOUNT, conversation.getAccount().getJid().toBareJid().toString());
 562		startActivityForResult(intent, REQUEST_INVITE_TO_CONVERSATION);
 563	}
 564
 565	protected void announcePgp(Account account, final Conversation conversation, Intent intent, final Runnable onSuccess) {
 566		if (account.getPgpId() == 0) {
 567			choosePgpSignId(account);
 568		} else {
 569			String status = null;
 570			if (manuallyChangePresence()) {
 571				status = account.getPresenceStatusMessage();
 572			}
 573			if (status == null) {
 574				status = "";
 575			}
 576			xmppConnectionService.getPgpEngine().generateSignature(intent, account, status, new UiCallback<Account>() {
 577
 578				@Override
 579				public void userInputRequried(PendingIntent pi, Account account) {
 580					try {
 581						startIntentSenderForResult(pi.getIntentSender(), REQUEST_ANNOUNCE_PGP, null, 0, 0, 0);
 582					} catch (final SendIntentException ignored) {
 583					}
 584				}
 585
 586				@Override
 587				public void success(Account account) {
 588					xmppConnectionService.databaseBackend.updateAccount(account);
 589					xmppConnectionService.sendPresence(account);
 590					if (conversation != null) {
 591						conversation.setNextEncryption(Message.ENCRYPTION_PGP);
 592						xmppConnectionService.updateConversation(conversation);
 593						refreshUi();
 594					}
 595					if (onSuccess != null) {
 596						runOnUiThread(onSuccess);
 597					}
 598				}
 599
 600				@Override
 601				public void error(int error, Account account) {
 602					if (error == 0 && account != null) {
 603						account.setPgpSignId(0);
 604						account.unsetPgpSignature();
 605						xmppConnectionService.databaseBackend.updateAccount(account);
 606						choosePgpSignId(account);
 607					} else {
 608						displayErrorDialog(error);
 609					}
 610				}
 611			});
 612		}
 613	}
 614
 615	protected boolean noAccountUsesPgp() {
 616		if (!hasPgp()) {
 617			return true;
 618		}
 619		for (Account account : xmppConnectionService.getAccounts()) {
 620			if (account.getPgpId() != 0) {
 621				return false;
 622			}
 623		}
 624		return true;
 625	}
 626
 627	@SuppressWarnings("deprecation")
 628	@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
 629	protected void setListItemBackgroundOnView(View view) {
 630		int sdk = android.os.Build.VERSION.SDK_INT;
 631		if (sdk < android.os.Build.VERSION_CODES.JELLY_BEAN) {
 632			view.setBackgroundDrawable(getResources().getDrawable(R.drawable.greybackground));
 633		} else {
 634			view.setBackground(getResources().getDrawable(R.drawable.greybackground));
 635		}
 636	}
 637
 638	protected void choosePgpSignId(Account account) {
 639		xmppConnectionService.getPgpEngine().chooseKey(account, new UiCallback<Account>() {
 640			@Override
 641			public void success(Account account1) {
 642			}
 643
 644			@Override
 645			public void error(int errorCode, Account object) {
 646
 647			}
 648
 649			@Override
 650			public void userInputRequried(PendingIntent pi, Account object) {
 651				try {
 652					startIntentSenderForResult(pi.getIntentSender(),
 653							REQUEST_CHOOSE_PGP_ID, null, 0, 0, 0);
 654				} catch (final SendIntentException ignored) {
 655				}
 656			}
 657		});
 658	}
 659
 660	protected void displayErrorDialog(final int errorCode) {
 661		runOnUiThread(() -> {
 662			Builder builder = new Builder(XmppActivity.this);
 663			builder.setIconAttribute(android.R.attr.alertDialogIcon);
 664			builder.setTitle(getString(R.string.error));
 665			builder.setMessage(errorCode);
 666			builder.setNeutralButton(R.string.accept, null);
 667			builder.create().show();
 668		});
 669
 670	}
 671
 672	protected void showAddToRosterDialog(final Conversation conversation) {
 673		showAddToRosterDialog(conversation.getContact());
 674	}
 675
 676	protected void showAddToRosterDialog(final Contact contact) {
 677		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 678		builder.setTitle(contact.getJid().toString());
 679		builder.setMessage(getString(R.string.not_in_roster));
 680		builder.setNegativeButton(getString(R.string.cancel), null);
 681		builder.setPositiveButton(getString(R.string.add_contact),
 682				(dialog, which) -> {
 683					final Jid jid = contact.getJid();
 684					Account account = contact.getAccount();
 685					Contact contact1 = account.getRoster().getContact(jid);
 686					xmppConnectionService.createContact(contact1);
 687				});
 688		builder.create().show();
 689	}
 690
 691	private void showAskForPresenceDialog(final Contact contact) {
 692		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 693		builder.setTitle(contact.getJid().toString());
 694		builder.setMessage(R.string.request_presence_updates);
 695		builder.setNegativeButton(R.string.cancel, null);
 696		builder.setPositiveButton(R.string.request_now,
 697				(dialog, which) -> {
 698					if (xmppConnectionServiceBound) {
 699						xmppConnectionService.sendPresencePacket(contact
 700								.getAccount(), xmppConnectionService
 701								.getPresenceGenerator()
 702								.requestPresenceUpdatesFrom(contact));
 703					}
 704				});
 705		builder.create().show();
 706	}
 707
 708	private void warnMutalPresenceSubscription(final Conversation conversation,
 709	                                           final OnPresenceSelected listener) {
 710		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 711		builder.setTitle(conversation.getContact().getJid().toString());
 712		builder.setMessage(R.string.without_mutual_presence_updates);
 713		builder.setNegativeButton(R.string.cancel, null);
 714		builder.setPositiveButton(R.string.ignore, (dialog, which) -> {
 715			conversation.setNextCounterpart(null);
 716			if (listener != null) {
 717				listener.onPresenceSelected();
 718			}
 719		});
 720		builder.create().show();
 721	}
 722
 723	protected void quickEdit(String previousValue, int hint, OnValueEdited callback) {
 724		quickEdit(previousValue, callback, hint, false);
 725	}
 726
 727	protected void quickPasswordEdit(String previousValue, OnValueEdited callback) {
 728		quickEdit(previousValue, callback, R.string.password, true);
 729	}
 730
 731	@SuppressLint("InflateParams")
 732	private void quickEdit(final String previousValue,
 733	                       final OnValueEdited callback,
 734	                       final int hint,
 735	                       boolean password) {
 736		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 737		View view = getLayoutInflater().inflate(R.layout.quickedit, null);
 738		final EditText editor = view.findViewById(R.id.editor);
 739		if (password) {
 740			editor.setInputType(InputType.TYPE_CLASS_TEXT
 741					| InputType.TYPE_TEXT_VARIATION_PASSWORD);
 742		}
 743		builder.setPositiveButton(R.string.accept, null);
 744		if (hint != 0) {
 745			editor.setHint(hint);
 746		}
 747		editor.requestFocus();
 748		editor.setText("");
 749		if (previousValue != null) {
 750			editor.getText().append(previousValue);
 751		}
 752		builder.setView(view);
 753		builder.setNegativeButton(R.string.cancel, null);
 754		final AlertDialog dialog = builder.create();
 755		dialog.show();
 756		View.OnClickListener clickListener = v -> {
 757			String value = editor.getText().toString();
 758			if (!value.equals(previousValue) && value.trim().length() > 0) {
 759				String error = callback.onValueEdited(value);
 760				if (error != null) {
 761					editor.setError(error);
 762					return;
 763				}
 764			}
 765			dialog.dismiss();
 766		};
 767		dialog.getButton(DialogInterface.BUTTON_POSITIVE).setOnClickListener(clickListener);
 768	}
 769
 770	public boolean hasStoragePermission(int requestCode) {
 771		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 772			if (checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
 773				requestPermissions(new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, requestCode);
 774				return false;
 775			} else {
 776				return true;
 777			}
 778		} else {
 779			return true;
 780		}
 781	}
 782
 783	public void selectPresence(final Conversation conversation,
 784	                           final OnPresenceSelected listener) {
 785		final Contact contact = conversation.getContact();
 786		if (conversation.hasValidOtrSession()) {
 787			SessionID id = conversation.getOtrSession().getSessionID();
 788			Jid jid;
 789			try {
 790				jid = Jid.fromString(id.getAccountID() + "/" + id.getUserID());
 791			} catch (InvalidJidException e) {
 792				jid = null;
 793			}
 794			conversation.setNextCounterpart(jid);
 795			listener.onPresenceSelected();
 796		} else if (!contact.showInRoster()) {
 797			showAddToRosterDialog(conversation);
 798		} else {
 799			final Presences presences = contact.getPresences();
 800			if (presences.size() == 0) {
 801				if (!contact.getOption(Contact.Options.TO)
 802						&& !contact.getOption(Contact.Options.ASKING)
 803						&& contact.getAccount().getStatus() == Account.State.ONLINE) {
 804					showAskForPresenceDialog(contact);
 805				} else if (!contact.getOption(Contact.Options.TO)
 806						|| !contact.getOption(Contact.Options.FROM)) {
 807					warnMutalPresenceSubscription(conversation, listener);
 808				} else {
 809					conversation.setNextCounterpart(null);
 810					listener.onPresenceSelected();
 811				}
 812			} else if (presences.size() == 1) {
 813				String presence = presences.toResourceArray()[0];
 814				try {
 815					conversation.setNextCounterpart(Jid.fromParts(contact.getJid().getLocalpart(), contact.getJid().getDomainpart(), presence));
 816				} catch (InvalidJidException e) {
 817					conversation.setNextCounterpart(null);
 818				}
 819				listener.onPresenceSelected();
 820			} else {
 821				showPresenceSelectionDialog(presences, conversation, listener);
 822			}
 823		}
 824	}
 825
 826	private void showPresenceSelectionDialog(Presences presences, final Conversation conversation, final OnPresenceSelected listener) {
 827		final Contact contact = conversation.getContact();
 828		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 829		builder.setTitle(getString(R.string.choose_presence));
 830		final String[] resourceArray = presences.toResourceArray();
 831		Pair<Map<String, String>, Map<String, String>> typeAndName = presences.toTypeAndNameMap();
 832		final Map<String, String> resourceTypeMap = typeAndName.first;
 833		final Map<String, String> resourceNameMap = typeAndName.second;
 834		final String[] readableIdentities = new String[resourceArray.length];
 835		final AtomicInteger selectedResource = new AtomicInteger(0);
 836		for (int i = 0; i < resourceArray.length; ++i) {
 837			String resource = resourceArray[i];
 838			if (resource.equals(contact.getLastResource())) {
 839				selectedResource.set(i);
 840			}
 841			String type = resourceTypeMap.get(resource);
 842			String name = resourceNameMap.get(resource);
 843			if (type != null) {
 844				if (Collections.frequency(resourceTypeMap.values(), type) == 1) {
 845					readableIdentities[i] = UIHelper.tranlasteType(this, type);
 846				} else if (name != null) {
 847					if (Collections.frequency(resourceNameMap.values(), name) == 1
 848							|| CryptoHelper.UUID_PATTERN.matcher(resource).matches()) {
 849						readableIdentities[i] = UIHelper.tranlasteType(this, type) + "  (" + name + ")";
 850					} else {
 851						readableIdentities[i] = UIHelper.tranlasteType(this, type) + " (" + name + " / " + resource + ")";
 852					}
 853				} else {
 854					readableIdentities[i] = UIHelper.tranlasteType(this, type) + " (" + resource + ")";
 855				}
 856			} else {
 857				readableIdentities[i] = resource;
 858			}
 859		}
 860		builder.setSingleChoiceItems(readableIdentities,
 861				selectedResource.get(),
 862				(dialog, which) -> selectedResource.set(which));
 863		builder.setNegativeButton(R.string.cancel, null);
 864		builder.setPositiveButton(R.string.ok, (dialog, which) -> {
 865			try {
 866				Jid next = Jid.fromParts(contact.getJid().getLocalpart(), contact.getJid().getDomainpart(), resourceArray[selectedResource.get()]);
 867				conversation.setNextCounterpart(next);
 868			} catch (InvalidJidException e) {
 869				conversation.setNextCounterpart(null);
 870			}
 871			listener.onPresenceSelected();
 872		});
 873		builder.create().show();
 874	}
 875
 876	protected void onActivityResult(int requestCode, int resultCode, final Intent data) {
 877		super.onActivityResult(requestCode, resultCode, data);
 878		if (requestCode == REQUEST_INVITE_TO_CONVERSATION && resultCode == RESULT_OK) {
 879			mPendingConferenceInvite = ConferenceInvite.parse(data);
 880			if (xmppConnectionServiceBound && mPendingConferenceInvite != null) {
 881				if (mPendingConferenceInvite.execute(this)) {
 882					mToast = Toast.makeText(this, R.string.creating_conference, Toast.LENGTH_LONG);
 883					mToast.show();
 884				}
 885				mPendingConferenceInvite = null;
 886			}
 887		}
 888	}
 889
 890	public int getTertiaryTextColor() {
 891		return this.mTertiaryTextColor;
 892	}
 893
 894	public int getSecondaryTextColor() {
 895		return this.mSecondaryTextColor;
 896	}
 897
 898	public int getPrimaryTextColor() {
 899		return this.mPrimaryTextColor;
 900	}
 901
 902	public int getWarningTextColor() {
 903		return this.mColorRed;
 904	}
 905
 906	public int getOnlineColor() {
 907		return this.mColorGreen;
 908	}
 909
 910	public int getPrimaryBackgroundColor() {
 911		return this.mPrimaryBackgroundColor;
 912	}
 913
 914	public int getSecondaryBackgroundColor() {
 915		return this.mSecondaryBackgroundColor;
 916	}
 917
 918	public int getPixel(int dp) {
 919		DisplayMetrics metrics = getResources().getDisplayMetrics();
 920		return ((int) (dp * metrics.density));
 921	}
 922
 923	public boolean copyTextToClipboard(String text, int labelResId) {
 924		ClipboardManager mClipBoardManager = (ClipboardManager) getSystemService(CLIPBOARD_SERVICE);
 925		String label = getResources().getString(labelResId);
 926		if (mClipBoardManager != null) {
 927			ClipData mClipData = ClipData.newPlainText(label, text);
 928			mClipBoardManager.setPrimaryClip(mClipData);
 929			return true;
 930		}
 931		return false;
 932	}
 933
 934	protected boolean neverCompressPictures() {
 935		return getPreferences().getString("picture_compression", getResources().getString(R.string.picture_compression)).equals("never");
 936	}
 937
 938	protected boolean manuallyChangePresence() {
 939		return getPreferences().getBoolean(SettingsActivity.MANUALLY_CHANGE_PRESENCE, getResources().getBoolean(R.bool.manually_change_presence));
 940	}
 941
 942	protected String getShareableUri() {
 943		return getShareableUri(false);
 944	}
 945
 946	protected String getShareableUri(boolean http) {
 947		return null;
 948	}
 949
 950	protected void shareLink(boolean http) {
 951		String uri = getShareableUri(http);
 952		if (uri == null || uri.isEmpty()) {
 953			return;
 954		}
 955		Intent intent = new Intent(Intent.ACTION_SEND);
 956		intent.setType("text/plain");
 957		intent.putExtra(Intent.EXTRA_TEXT, getShareableUri(http));
 958		try {
 959			startActivity(Intent.createChooser(intent, getText(R.string.share_uri_with)));
 960		} catch (ActivityNotFoundException e) {
 961			Toast.makeText(this, R.string.no_application_to_share_uri, Toast.LENGTH_SHORT).show();
 962		}
 963	}
 964
 965	protected void launchOpenKeyChain(long keyId) {
 966		PgpEngine pgp = XmppActivity.this.xmppConnectionService.getPgpEngine();
 967		try {
 968			startIntentSenderForResult(
 969					pgp.getIntentForKey(keyId).getIntentSender(), 0, null, 0,
 970					0, 0);
 971		} catch (Throwable e) {
 972			Toast.makeText(XmppActivity.this, R.string.openpgp_error, Toast.LENGTH_SHORT).show();
 973		}
 974	}
 975
 976	@Override
 977	public void onResume() {
 978		super.onResume();
 979	}
 980
 981	protected int findTheme() {
 982		Boolean dark = getPreferences().getString(SettingsActivity.THEME, getResources().getString(R.string.theme)).equals("dark");
 983		Boolean larger = getPreferences().getBoolean("use_larger_font", getResources().getBoolean(R.bool.use_larger_font));
 984
 985		if (dark) {
 986			if (larger)
 987				return R.style.ConversationsTheme_Dark_LargerText;
 988			else
 989				return R.style.ConversationsTheme_Dark;
 990		} else {
 991			if (larger)
 992				return R.style.ConversationsTheme_LargerText;
 993			else
 994				return R.style.ConversationsTheme;
 995		}
 996	}
 997
 998	@Override
 999	public void onPause() {
1000		super.onPause();
1001	}
1002
1003	protected void showQrCode() {
1004		final String uri = getShareableUri();
1005		if (uri == null || uri.isEmpty()) {
1006			return;
1007		}
1008		Point size = new Point();
1009		getWindowManager().getDefaultDisplay().getSize(size);
1010		final int width = (size.x < size.y ? size.x : size.y);
1011		Bitmap bitmap = BarcodeProvider.create2dBarcodeBitmap(uri, width);
1012		ImageView view = new ImageView(this);
1013		view.setBackgroundColor(Color.WHITE);
1014		view.setImageBitmap(bitmap);
1015		AlertDialog.Builder builder = new AlertDialog.Builder(this);
1016		builder.setView(view);
1017		builder.create().show();
1018	}
1019
1020	protected Account extractAccount(Intent intent) {
1021		String jid = intent != null ? intent.getStringExtra(EXTRA_ACCOUNT) : null;
1022		try {
1023			return jid != null ? xmppConnectionService.findAccountByJid(Jid.fromString(jid)) : null;
1024		} catch (InvalidJidException e) {
1025			return null;
1026		}
1027	}
1028
1029	public AvatarService avatarService() {
1030		return xmppConnectionService.getAvatarService();
1031	}
1032
1033	public void loadBitmap(Message message, ImageView imageView) {
1034		Bitmap bm;
1035		try {
1036			bm = xmppConnectionService.getFileBackend().getThumbnail(message, (int) (metrics.density * 288), true);
1037		} catch (FileNotFoundException e) {
1038			bm = null;
1039		}
1040		if (bm != null) {
1041			cancelPotentialWork(message, imageView);
1042			imageView.setImageBitmap(bm);
1043			imageView.setBackgroundColor(0x00000000);
1044		} else {
1045			if (cancelPotentialWork(message, imageView)) {
1046				imageView.setBackgroundColor(0xff333333);
1047				imageView.setImageDrawable(null);
1048				final BitmapWorkerTask task = new BitmapWorkerTask(this, imageView);
1049				final AsyncDrawable asyncDrawable = new AsyncDrawable(
1050						getResources(), null, task);
1051				imageView.setImageDrawable(asyncDrawable);
1052				try {
1053					task.execute(message);
1054				} catch (final RejectedExecutionException ignored) {
1055					ignored.printStackTrace();
1056				}
1057			}
1058		}
1059	}
1060
1061	protected interface OnValueEdited {
1062		String onValueEdited(String value);
1063	}
1064
1065	public interface OnPresenceSelected {
1066		void onPresenceSelected();
1067	}
1068
1069	public static class ConferenceInvite {
1070		private String uuid;
1071		private List<Jid> jids = new ArrayList<>();
1072
1073		public static ConferenceInvite parse(Intent data) {
1074			ConferenceInvite invite = new ConferenceInvite();
1075			invite.uuid = data.getStringExtra("conversation");
1076			if (invite.uuid == null) {
1077				return null;
1078			}
1079			try {
1080				if (data.getBooleanExtra("multiple", false)) {
1081					String[] toAdd = data.getStringArrayExtra("contacts");
1082					for (String item : toAdd) {
1083						invite.jids.add(Jid.fromString(item));
1084					}
1085				} else {
1086					invite.jids.add(Jid.fromString(data.getStringExtra("contact")));
1087				}
1088			} catch (final InvalidJidException ignored) {
1089				return null;
1090			}
1091			return invite;
1092		}
1093
1094		public boolean execute(XmppActivity activity) {
1095			XmppConnectionService service = activity.xmppConnectionService;
1096			Conversation conversation = service.findConversationByUuid(this.uuid);
1097			if (conversation == null) {
1098				return false;
1099			}
1100			if (conversation.getMode() == Conversation.MODE_MULTI) {
1101				for (Jid jid : jids) {
1102					service.invite(conversation, jid);
1103				}
1104				return false;
1105			} else {
1106				jids.add(conversation.getJid().toBareJid());
1107				return service.createAdhocConference(conversation.getAccount(), null, jids, activity.adhocCallback);
1108			}
1109		}
1110	}
1111
1112	static class BitmapWorkerTask extends AsyncTask<Message, Void, Bitmap> {
1113		private final WeakReference<ImageView> imageViewReference;
1114		private final WeakReference<XmppActivity> activity;
1115		private Message message = null;
1116
1117		private BitmapWorkerTask(XmppActivity activity, ImageView imageView) {
1118			this.activity = new WeakReference<>(activity);
1119			this.imageViewReference = new WeakReference<>(imageView);
1120		}
1121
1122		@Override
1123		protected Bitmap doInBackground(Message... params) {
1124			if (isCancelled()) {
1125				return null;
1126			}
1127			message = params[0];
1128			try {
1129				XmppActivity activity = this.activity.get();
1130				if (activity != null && activity.xmppConnectionService != null) {
1131					return activity.xmppConnectionService.getFileBackend().getThumbnail(message, (int) (activity.metrics.density * 288), false);
1132				} else {
1133					return null;
1134				}
1135			} catch (FileNotFoundException e) {
1136				return null;
1137			}
1138		}
1139
1140		@Override
1141		protected void onPostExecute(Bitmap bitmap) {
1142			if (bitmap != null && !isCancelled()) {
1143				final ImageView imageView = imageViewReference.get();
1144				if (imageView != null) {
1145					imageView.setImageBitmap(bitmap);
1146					imageView.setBackgroundColor(0x00000000);
1147				}
1148			}
1149		}
1150	}
1151
1152	private static class AsyncDrawable extends BitmapDrawable {
1153		private final WeakReference<BitmapWorkerTask> bitmapWorkerTaskReference;
1154
1155		private AsyncDrawable(Resources res, Bitmap bitmap, BitmapWorkerTask bitmapWorkerTask) {
1156			super(res, bitmap);
1157			bitmapWorkerTaskReference = new WeakReference<>(bitmapWorkerTask);
1158		}
1159
1160		private BitmapWorkerTask getBitmapWorkerTask() {
1161			return bitmapWorkerTaskReference.get();
1162		}
1163	}
1164}