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.DialogInterface.OnClickListener;
  18import android.content.Intent;
  19import android.content.IntentSender.SendIntentException;
  20import android.content.ServiceConnection;
  21import android.content.SharedPreferences;
  22import android.content.pm.PackageManager;
  23import android.content.pm.ResolveInfo;
  24import android.content.res.Resources;
  25import android.content.res.TypedArray;
  26import android.graphics.Bitmap;
  27import android.graphics.Color;
  28import android.graphics.Point;
  29import android.graphics.drawable.BitmapDrawable;
  30import android.graphics.drawable.Drawable;
  31import android.net.ConnectivityManager;
  32import android.net.Uri;
  33import android.nfc.NdefMessage;
  34import android.nfc.NdefRecord;
  35import android.nfc.NfcAdapter;
  36import android.nfc.NfcEvent;
  37import android.os.AsyncTask;
  38import android.os.Build;
  39import android.os.Bundle;
  40import android.os.Handler;
  41import android.os.IBinder;
  42import android.os.PowerManager;
  43import android.os.SystemClock;
  44import android.preference.PreferenceManager;
  45import android.text.InputType;
  46import android.util.DisplayMetrics;
  47import android.util.Pair;
  48import android.view.MenuItem;
  49import android.view.View;
  50import android.view.inputmethod.InputMethodManager;
  51import android.widget.EditText;
  52import android.widget.ImageView;
  53import android.widget.Toast;
  54
  55import com.google.zxing.BarcodeFormat;
  56import com.google.zxing.EncodeHintType;
  57import com.google.zxing.aztec.AztecWriter;
  58import com.google.zxing.common.BitMatrix;
  59
  60import net.java.otr4j.session.SessionID;
  61
  62import java.io.FileNotFoundException;
  63import java.lang.ref.WeakReference;
  64import java.util.ArrayList;
  65import java.util.Collections;
  66import java.util.Hashtable;
  67import java.util.List;
  68import java.util.Map;
  69import java.util.concurrent.RejectedExecutionException;
  70import java.util.concurrent.atomic.AtomicInteger;
  71
  72import eu.siacs.conversations.Config;
  73import eu.siacs.conversations.R;
  74import eu.siacs.conversations.entities.Account;
  75import eu.siacs.conversations.entities.Contact;
  76import eu.siacs.conversations.entities.Conversation;
  77import eu.siacs.conversations.entities.Message;
  78import eu.siacs.conversations.entities.MucOptions;
  79import eu.siacs.conversations.entities.Presences;
  80import eu.siacs.conversations.services.AvatarService;
  81import eu.siacs.conversations.services.XmppConnectionService;
  82import eu.siacs.conversations.services.XmppConnectionService.XmppConnectionBinder;
  83import eu.siacs.conversations.utils.CryptoHelper;
  84import eu.siacs.conversations.utils.ExceptionHelper;
  85import eu.siacs.conversations.utils.UIHelper;
  86import eu.siacs.conversations.xmpp.OnKeyStatusUpdated;
  87import eu.siacs.conversations.xmpp.OnUpdateBlocklist;
  88import eu.siacs.conversations.xmpp.jid.InvalidJidException;
  89import eu.siacs.conversations.xmpp.jid.Jid;
  90
  91public abstract class XmppActivity extends Activity {
  92
  93	protected static final int REQUEST_ANNOUNCE_PGP = 0x0101;
  94	protected static final int REQUEST_INVITE_TO_CONVERSATION = 0x0102;
  95	protected static final int REQUEST_CHOOSE_PGP_ID = 0x0103;
  96	protected static final int REQUEST_BATTERY_OP = 0x13849ff;
  97
  98	public static final String EXTRA_ACCOUNT = "account";
  99
 100	public XmppConnectionService xmppConnectionService;
 101	public boolean xmppConnectionServiceBound = false;
 102	protected boolean registeredListeners = false;
 103
 104	protected int mPrimaryTextColor;
 105	protected int mSecondaryTextColor;
 106	protected int mTertiaryTextColor;
 107	protected int mPrimaryBackgroundColor;
 108	protected int mSecondaryBackgroundColor;
 109	protected int mColorRed;
 110	protected int mColorOrange;
 111	protected int mColorGreen;
 112	protected int mPrimaryColor;
 113
 114	protected boolean mUseSubject = true;
 115
 116	private DisplayMetrics metrics;
 117	protected int mTheme;
 118	protected boolean mUsingEnterKey = false;
 119
 120	protected Toast mToast;
 121
 122	protected void hideToast() {
 123		if (mToast != null) {
 124			mToast.cancel();
 125		}
 126	}
 127
 128	protected void replaceToast(String msg) {
 129		replaceToast(msg, true);
 130	}
 131
 132	protected void replaceToast(String msg, boolean showlong) {
 133		hideToast();
 134		mToast = Toast.makeText(this, msg ,showlong ? Toast.LENGTH_LONG : Toast.LENGTH_SHORT);
 135		mToast.show();
 136	}
 137
 138	protected Runnable onOpenPGPKeyPublished = new Runnable() {
 139		@Override
 140		public void run() {
 141			Toast.makeText(XmppActivity.this,R.string.openpgp_has_been_published, Toast.LENGTH_SHORT).show();
 142		}
 143	};
 144
 145	private long mLastUiRefresh = 0;
 146	private Handler mRefreshUiHandler = new Handler();
 147	private Runnable mRefreshUiRunnable = new Runnable() {
 148		@Override
 149		public void run() {
 150			mLastUiRefresh = SystemClock.elapsedRealtime();
 151			refreshUiReal();
 152		}
 153	};
 154
 155	protected ConferenceInvite mPendingConferenceInvite = null;
 156
 157
 158	protected final void refreshUi() {
 159		final long diff = SystemClock.elapsedRealtime() - mLastUiRefresh;
 160		if (diff > Config.REFRESH_UI_INTERVAL) {
 161			mRefreshUiHandler.removeCallbacks(mRefreshUiRunnable);
 162			runOnUiThread(mRefreshUiRunnable);
 163		} else {
 164			final long next = Config.REFRESH_UI_INTERVAL - diff;
 165			mRefreshUiHandler.removeCallbacks(mRefreshUiRunnable);
 166			mRefreshUiHandler.postDelayed(mRefreshUiRunnable,next);
 167		}
 168	}
 169
 170	abstract protected void refreshUiReal();
 171
 172	protected interface OnValueEdited {
 173		public void onValueEdited(String value);
 174	}
 175
 176	public interface OnPresenceSelected {
 177		public void onPresenceSelected();
 178	}
 179
 180	protected ServiceConnection mConnection = new ServiceConnection() {
 181
 182		@Override
 183		public void onServiceConnected(ComponentName className, IBinder service) {
 184			XmppConnectionBinder binder = (XmppConnectionBinder) service;
 185			xmppConnectionService = binder.getService();
 186			xmppConnectionServiceBound = true;
 187			if (!registeredListeners && shouldRegisterListeners()) {
 188				registerListeners();
 189				registeredListeners = true;
 190			}
 191			onBackendConnected();
 192		}
 193
 194		@Override
 195		public void onServiceDisconnected(ComponentName arg0) {
 196			xmppConnectionServiceBound = false;
 197		}
 198	};
 199
 200	@Override
 201	protected void onStart() {
 202		super.onStart();
 203		if (!xmppConnectionServiceBound) {
 204			connectToBackend();
 205		} else {
 206			if (!registeredListeners) {
 207				this.registerListeners();
 208				this.registeredListeners = true;
 209			}
 210			this.onBackendConnected();
 211		}
 212	}
 213
 214	@TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
 215	protected boolean shouldRegisterListeners() {
 216		if  (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
 217			return !isDestroyed() && !isFinishing();
 218		} else {
 219			return !isFinishing();
 220		}
 221	}
 222
 223	public void connectToBackend() {
 224		Intent intent = new Intent(this, XmppConnectionService.class);
 225		intent.setAction("ui");
 226		startService(intent);
 227		bindService(intent, mConnection, Context.BIND_AUTO_CREATE);
 228	}
 229
 230	@Override
 231	protected void onStop() {
 232		super.onStop();
 233		if (xmppConnectionServiceBound) {
 234			if (registeredListeners) {
 235				this.unregisterListeners();
 236				this.registeredListeners = false;
 237			}
 238			unbindService(mConnection);
 239			xmppConnectionServiceBound = false;
 240		}
 241	}
 242
 243	protected void hideKeyboard() {
 244		InputMethodManager inputManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
 245
 246		View focus = getCurrentFocus();
 247
 248		if (focus != null) {
 249
 250			inputManager.hideSoftInputFromWindow(focus.getWindowToken(),
 251					InputMethodManager.HIDE_NOT_ALWAYS);
 252		}
 253	}
 254
 255	public boolean hasPgp() {
 256		return xmppConnectionService.getPgpEngine() != null;
 257	}
 258
 259	public void showInstallPgpDialog() {
 260		Builder builder = new AlertDialog.Builder(this);
 261		builder.setTitle(getString(R.string.openkeychain_required));
 262		builder.setIconAttribute(android.R.attr.alertDialogIcon);
 263		builder.setMessage(getText(R.string.openkeychain_required_long));
 264		builder.setNegativeButton(getString(R.string.cancel), null);
 265		builder.setNeutralButton(getString(R.string.restart),
 266				new OnClickListener() {
 267
 268					@Override
 269					public void onClick(DialogInterface dialog, int which) {
 270						if (xmppConnectionServiceBound) {
 271							unbindService(mConnection);
 272							xmppConnectionServiceBound = false;
 273						}
 274						stopService(new Intent(XmppActivity.this,
 275									XmppConnectionService.class));
 276						finish();
 277					}
 278				});
 279		builder.setPositiveButton(getString(R.string.install),
 280				new OnClickListener() {
 281
 282					@Override
 283					public void onClick(DialogInterface dialog, int which) {
 284						Uri uri = Uri
 285							.parse("market://details?id=org.sufficientlysecure.keychain");
 286						Intent marketIntent = new Intent(Intent.ACTION_VIEW,
 287								uri);
 288						PackageManager manager = getApplicationContext()
 289							.getPackageManager();
 290						List<ResolveInfo> infos = manager
 291							.queryIntentActivities(marketIntent, 0);
 292						if (infos.size() > 0) {
 293							startActivity(marketIntent);
 294						} else {
 295							uri = Uri.parse("http://www.openkeychain.org/");
 296							Intent browserIntent = new Intent(
 297									Intent.ACTION_VIEW, uri);
 298							startActivity(browserIntent);
 299						}
 300						finish();
 301					}
 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 = getResources().getColor(R.color.black87);
 388		mSecondaryTextColor = getResources().getColor(R.color.black54);
 389		mTertiaryTextColor = getResources().getColor(R.color.black12);
 390		mColorRed = getResources().getColor(R.color.red800);
 391		mColorOrange = getResources().getColor(R.color.orange500);
 392		mColorGreen = getResources().getColor(R.color.green500);
 393		mPrimaryColor = getResources().getColor(R.color.primary500);
 394		mPrimaryBackgroundColor = getResources().getColor(R.color.grey50);
 395		mSecondaryBackgroundColor = getResources().getColor(R.color.grey200);
 396
 397		if(isDarkTheme()) {
 398			mPrimaryTextColor = getResources().getColor(R.color.white);
 399			mSecondaryTextColor = getResources().getColor(R.color.white70);
 400			mTertiaryTextColor = getResources().getColor(R.color.white12);
 401			mPrimaryBackgroundColor = getResources().getColor(R.color.grey800);
 402			mSecondaryBackgroundColor = getResources().getColor(R.color.grey900);
 403		}
 404
 405		this.mTheme = findTheme();
 406		setTheme(this.mTheme);
 407
 408		this.mUsingEnterKey = usingEnterKey();
 409		mUseSubject = getPreferences().getBoolean("use_subject", true);
 410		final ActionBar ab = getActionBar();
 411		if (ab!=null) {
 412			ab.setDisplayHomeAsUpEnabled(true);
 413		}
 414	}
 415
 416	public boolean isDarkTheme() {
 417		return getPreferences().getString("theme", "light").equals("dark");
 418	}
 419
 420	public int getThemeResource(int r_attr_name, int r_drawable_def) {
 421		int[] attrs = {	r_attr_name };
 422		TypedArray ta = this.getTheme().obtainStyledAttributes(attrs);
 423
 424		int res = ta.getResourceId(0, r_drawable_def);
 425		ta.recycle();
 426
 427		return res;
 428	}
 429
 430	protected boolean isOptimizingBattery() {
 431		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 432			PowerManager pm = (PowerManager) getSystemService(POWER_SERVICE);
 433			return !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			ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
 442			return cm.isActiveNetworkMetered()
 443					&& cm.getRestrictBackgroundStatus() == ConnectivityManager.RESTRICT_BACKGROUND_STATUS_ENABLED;
 444		} else {
 445			return false;
 446		}
 447	}
 448
 449	protected boolean usingEnterKey() {
 450		return getPreferences().getBoolean("display_enter_key", false);
 451	}
 452
 453	protected SharedPreferences getPreferences() {
 454		return PreferenceManager
 455			.getDefaultSharedPreferences(getApplicationContext());
 456	}
 457
 458	public boolean useSubjectToIdentifyConference() {
 459		return mUseSubject;
 460	}
 461
 462	public void switchToConversation(Conversation conversation) {
 463		switchToConversation(conversation, null, false);
 464	}
 465
 466	public void switchToConversation(Conversation conversation, String text,
 467			boolean newTask) {
 468		switchToConversation(conversation,text,null,false,newTask);
 469	}
 470
 471	public void highlightInMuc(Conversation conversation, String nick) {
 472		switchToConversation(conversation, null, nick, false, false);
 473	}
 474
 475	public void privateMsgInMuc(Conversation conversation, String nick) {
 476		switchToConversation(conversation, null, nick, true, false);
 477	}
 478
 479	private void switchToConversation(Conversation conversation, String text, String nick, boolean pm, boolean newTask) {
 480		Intent viewConversationIntent = new Intent(this,
 481				ConversationActivity.class);
 482		viewConversationIntent.setAction(ConversationActivity.ACTION_VIEW_CONVERSATION);
 483		viewConversationIntent.putExtra(ConversationActivity.CONVERSATION,
 484				conversation.getUuid());
 485		if (text != null) {
 486			viewConversationIntent.putExtra(ConversationActivity.TEXT, text);
 487		}
 488		if (nick != null) {
 489			viewConversationIntent.putExtra(ConversationActivity.NICK, nick);
 490			viewConversationIntent.putExtra(ConversationActivity.PRIVATE_MESSAGE,pm);
 491		}
 492		if (newTask) {
 493			viewConversationIntent.setFlags(viewConversationIntent.getFlags()
 494					| Intent.FLAG_ACTIVITY_NEW_TASK
 495					| Intent.FLAG_ACTIVITY_SINGLE_TOP);
 496		} else {
 497			viewConversationIntent.setFlags(viewConversationIntent.getFlags()
 498					| Intent.FLAG_ACTIVITY_CLEAR_TOP);
 499		}
 500		startActivity(viewConversationIntent);
 501		finish();
 502	}
 503
 504	public void switchToContactDetails(Contact contact) {
 505		switchToContactDetails(contact, null);
 506	}
 507
 508	public void switchToContactDetails(Contact contact, String messageFingerprint) {
 509		Intent intent = new Intent(this, ContactDetailsActivity.class);
 510		intent.setAction(ContactDetailsActivity.ACTION_VIEW_CONTACT);
 511		intent.putExtra(EXTRA_ACCOUNT, contact.getAccount().getJid().toBareJid().toString());
 512		intent.putExtra("contact", contact.getJid().toString());
 513		intent.putExtra("fingerprint", messageFingerprint);
 514		startActivity(intent);
 515	}
 516
 517	public void switchToAccount(Account account) {
 518		switchToAccount(account, false);
 519	}
 520
 521	public void switchToAccount(Account account, boolean init) {
 522		Intent intent = new Intent(this, EditAccountActivity.class);
 523		intent.putExtra("jid", account.getJid().toBareJid().toString());
 524		intent.putExtra("init", init);
 525		startActivity(intent);
 526	}
 527
 528	protected void inviteToConversation(Conversation conversation) {
 529		Intent intent = new Intent(getApplicationContext(),
 530				ChooseContactActivity.class);
 531		List<String> contacts = new ArrayList<>();
 532		if (conversation.getMode() == Conversation.MODE_MULTI) {
 533			for (MucOptions.User user : conversation.getMucOptions().getUsers(false)) {
 534				Jid jid = user.getRealJid();
 535				if (jid != null) {
 536					contacts.add(jid.toBareJid().toString());
 537				}
 538			}
 539		} else {
 540			contacts.add(conversation.getJid().toBareJid().toString());
 541		}
 542		intent.putExtra("filter_contacts", contacts.toArray(new String[contacts.size()]));
 543		intent.putExtra("conversation", conversation.getUuid());
 544		intent.putExtra("multiple", true);
 545		intent.putExtra("show_enter_jid", true);
 546		intent.putExtra(EXTRA_ACCOUNT, conversation.getAccount().getJid().toBareJid().toString());
 547		startActivityForResult(intent, REQUEST_INVITE_TO_CONVERSATION);
 548	}
 549
 550	protected void announcePgp(Account account, final Conversation conversation, final Runnable onSuccess) {
 551		if (account.getPgpId() == 0) {
 552			choosePgpSignId(account);
 553		} else {
 554			String status = null;
 555			if (manuallyChangePresence()) {
 556				status = account.getPresenceStatusMessage();
 557			}
 558			if (status == null) {
 559				status = "";
 560			}
 561			xmppConnectionService.getPgpEngine().generateSignature(account, status, new UiCallback<Account>() {
 562
 563				@Override
 564				public void userInputRequried(PendingIntent pi, Account account) {
 565					try {
 566						startIntentSenderForResult(pi.getIntentSender(), REQUEST_ANNOUNCE_PGP, null, 0, 0, 0);
 567					} catch (final SendIntentException ignored) {
 568					}
 569				}
 570
 571				@Override
 572				public void success(Account account) {
 573					xmppConnectionService.databaseBackend.updateAccount(account);
 574					xmppConnectionService.sendPresence(account);
 575					if (conversation != null) {
 576						conversation.setNextEncryption(Message.ENCRYPTION_PGP);
 577						xmppConnectionService.updateConversation(conversation);
 578						refreshUi();
 579					}
 580					if (onSuccess != null) {
 581						runOnUiThread(onSuccess);
 582					}
 583				}
 584
 585				@Override
 586				public void error(int error, Account account) {
 587					if (error == 0 && account != null) {
 588						account.setPgpSignId(0);
 589						account.unsetPgpSignature();
 590						xmppConnectionService.databaseBackend.updateAccount(account);
 591						choosePgpSignId(account);
 592					} else {
 593						displayErrorDialog(error);
 594					}
 595				}
 596			});
 597		}
 598	}
 599
 600	protected  boolean noAccountUsesPgp() {
 601		if (!hasPgp()) {
 602			return true;
 603		}
 604		for(Account account : xmppConnectionService.getAccounts()) {
 605			if (account.getPgpId() != 0) {
 606				return false;
 607			}
 608		}
 609		return true;
 610	}
 611
 612	@SuppressWarnings("deprecation")
 613	@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
 614	protected void setListItemBackgroundOnView(View view) {
 615		int sdk = android.os.Build.VERSION.SDK_INT;
 616		if (sdk < android.os.Build.VERSION_CODES.JELLY_BEAN) {
 617			view.setBackgroundDrawable(getResources().getDrawable(R.drawable.greybackground));
 618		} else {
 619			view.setBackground(getResources().getDrawable(R.drawable.greybackground));
 620		}
 621	}
 622
 623	protected void choosePgpSignId(Account account) {
 624		xmppConnectionService.getPgpEngine().chooseKey(account, new UiCallback<Account>() {
 625			@Override
 626			public void success(Account account1) {
 627			}
 628
 629			@Override
 630			public void error(int errorCode, Account object) {
 631
 632			}
 633
 634			@Override
 635			public void userInputRequried(PendingIntent pi, Account object) {
 636				try {
 637					startIntentSenderForResult(pi.getIntentSender(),
 638							REQUEST_CHOOSE_PGP_ID, null, 0, 0, 0);
 639				} catch (final SendIntentException ignored) {
 640				}
 641			}
 642		});
 643	}
 644
 645	protected void displayErrorDialog(final int errorCode) {
 646		runOnUiThread(new Runnable() {
 647
 648			@Override
 649			public void run() {
 650				AlertDialog.Builder builder = new AlertDialog.Builder(
 651						XmppActivity.this);
 652				builder.setIconAttribute(android.R.attr.alertDialogIcon);
 653				builder.setTitle(getString(R.string.error));
 654				builder.setMessage(errorCode);
 655				builder.setNeutralButton(R.string.accept, null);
 656				builder.create().show();
 657			}
 658		});
 659
 660	}
 661
 662	protected void showAddToRosterDialog(final Conversation conversation) {
 663		showAddToRosterDialog(conversation.getContact());
 664	}
 665
 666	protected void showAddToRosterDialog(final Contact contact) {
 667		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 668		builder.setTitle(contact.getJid().toString());
 669		builder.setMessage(getString(R.string.not_in_roster));
 670		builder.setNegativeButton(getString(R.string.cancel), null);
 671		builder.setPositiveButton(getString(R.string.add_contact),
 672				new DialogInterface.OnClickListener() {
 673
 674					@Override
 675					public void onClick(DialogInterface dialog, int which) {
 676						final Jid jid = contact.getJid();
 677						Account account = contact.getAccount();
 678						Contact contact = account.getRoster().getContact(jid);
 679						xmppConnectionService.createContact(contact);
 680					}
 681				});
 682		builder.create().show();
 683	}
 684
 685	private void showAskForPresenceDialog(final Contact contact) {
 686		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 687		builder.setTitle(contact.getJid().toString());
 688		builder.setMessage(R.string.request_presence_updates);
 689		builder.setNegativeButton(R.string.cancel, null);
 690		builder.setPositiveButton(R.string.request_now,
 691				new DialogInterface.OnClickListener() {
 692
 693					@Override
 694					public void onClick(DialogInterface dialog, int which) {
 695						if (xmppConnectionServiceBound) {
 696							xmppConnectionService.sendPresencePacket(contact
 697									.getAccount(), xmppConnectionService
 698									.getPresenceGenerator()
 699									.requestPresenceUpdatesFrom(contact));
 700						}
 701					}
 702				});
 703		builder.create().show();
 704	}
 705
 706	private void warnMutalPresenceSubscription(final Conversation conversation,
 707			final OnPresenceSelected listener) {
 708		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 709		builder.setTitle(conversation.getContact().getJid().toString());
 710		builder.setMessage(R.string.without_mutual_presence_updates);
 711		builder.setNegativeButton(R.string.cancel, null);
 712		builder.setPositiveButton(R.string.ignore, new OnClickListener() {
 713
 714			@Override
 715			public void onClick(DialogInterface dialog, int which) {
 716				conversation.setNextCounterpart(null);
 717				if (listener != null) {
 718					listener.onPresenceSelected();
 719				}
 720			}
 721		});
 722		builder.create().show();
 723	}
 724
 725	protected void quickEdit(String previousValue, int hint, OnValueEdited callback) {
 726		quickEdit(previousValue, callback, hint, false);
 727	}
 728
 729	protected void quickPasswordEdit(String previousValue, OnValueEdited callback) {
 730		quickEdit(previousValue, callback, R.string.password, true);
 731	}
 732
 733	@SuppressLint("InflateParams")
 734	private void quickEdit(final String previousValue,
 735						   final OnValueEdited callback,
 736						   final int hint,
 737						   boolean password) {
 738		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 739		View view = getLayoutInflater().inflate(R.layout.quickedit, null);
 740		final EditText editor = (EditText) view.findViewById(R.id.editor);
 741		OnClickListener mClickListener = new OnClickListener() {
 742
 743			@Override
 744			public void onClick(DialogInterface dialog, int which) {
 745				String value = editor.getText().toString();
 746				if (!value.equals(previousValue) && value.trim().length() > 0) {
 747					callback.onValueEdited(value);
 748				}
 749			}
 750		};
 751		if (password) {
 752			editor.setInputType(InputType.TYPE_CLASS_TEXT
 753					| InputType.TYPE_TEXT_VARIATION_PASSWORD);
 754			builder.setPositiveButton(R.string.accept, mClickListener);
 755		} else {
 756			builder.setPositiveButton(R.string.edit, mClickListener);
 757		}
 758		if (hint != 0) {
 759			editor.setHint(hint);
 760		}
 761		editor.requestFocus();
 762		editor.setText("");
 763		if (previousValue != null) {
 764			editor.getText().append(previousValue);
 765		}
 766		builder.setView(view);
 767		builder.setNegativeButton(R.string.cancel, null);
 768		builder.create().show();
 769	}
 770
 771	public boolean hasStoragePermission(int requestCode) {
 772		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 773			if (checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
 774				requestPermissions(new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, requestCode);
 775				return false;
 776			} else {
 777				return true;
 778			}
 779		} else {
 780			return true;
 781		}
 782	}
 783
 784	public void selectPresence(final Conversation conversation,
 785			final OnPresenceSelected listener) {
 786		final Contact contact = conversation.getContact();
 787		if (conversation.hasValidOtrSession()) {
 788			SessionID id = conversation.getOtrSession().getSessionID();
 789			Jid jid;
 790			try {
 791				jid = Jid.fromString(id.getAccountID() + "/" + id.getUserID());
 792			} catch (InvalidJidException e) {
 793				jid = null;
 794			}
 795			conversation.setNextCounterpart(jid);
 796			listener.onPresenceSelected();
 797		} else 	if (!contact.showInRoster()) {
 798			showAddToRosterDialog(conversation);
 799		} else {
 800			final Presences presences = contact.getPresences();
 801			if (presences.size() == 0) {
 802				if (!contact.getOption(Contact.Options.TO)
 803						&& !contact.getOption(Contact.Options.ASKING)
 804						&& contact.getAccount().getStatus() == Account.State.ONLINE) {
 805					showAskForPresenceDialog(contact);
 806				} else if (!contact.getOption(Contact.Options.TO)
 807						|| !contact.getOption(Contact.Options.FROM)) {
 808					warnMutalPresenceSubscription(conversation, listener);
 809				} else {
 810					conversation.setNextCounterpart(null);
 811					listener.onPresenceSelected();
 812				}
 813			} else if (presences.size() == 1) {
 814				String presence = presences.toResourceArray()[0];
 815				try {
 816					conversation.setNextCounterpart(Jid.fromParts(contact.getJid().getLocalpart(),contact.getJid().getDomainpart(),presence));
 817				} catch (InvalidJidException e) {
 818					conversation.setNextCounterpart(null);
 819				}
 820				listener.onPresenceSelected();
 821			} else {
 822				showPresenceSelectionDialog(presences,conversation,listener);
 823			}
 824		}
 825	}
 826
 827	private void showPresenceSelectionDialog(Presences presences, final Conversation conversation, final OnPresenceSelected listener) {
 828		final Contact contact = conversation.getContact();
 829		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 830		builder.setTitle(getString(R.string.choose_presence));
 831		final String[] resourceArray = presences.toResourceArray();
 832		Pair<Map<String, String>, Map<String, String>> typeAndName = presences.toTypeAndNameMap();
 833		final Map<String,String> resourceTypeMap = typeAndName.first;
 834		final Map<String,String> resourceNameMap = typeAndName.second;
 835		final String[] readableIdentities = new String[resourceArray.length];
 836		final AtomicInteger selectedResource = new AtomicInteger(0);
 837		for (int i = 0; i < resourceArray.length; ++i) {
 838			String resource = resourceArray[i];
 839			if (resource.equals(contact.getLastResource())) {
 840				selectedResource.set(i);
 841			}
 842			String type = resourceTypeMap.get(resource);
 843			String name = resourceNameMap.get(resource);
 844			if (type != null) {
 845				if (Collections.frequency(resourceTypeMap.values(),type) == 1) {
 846					readableIdentities[i] = UIHelper.tranlasteType(this,type);
 847				} else if (name != null) {
 848					if (Collections.frequency(resourceNameMap.values(), name) == 1
 849							|| CryptoHelper.UUID_PATTERN.matcher(resource).matches()) {
 850						readableIdentities[i] = UIHelper.tranlasteType(this,type) + "  (" + name+")";
 851					} else {
 852						readableIdentities[i] = UIHelper.tranlasteType(this,type) + " (" + name +" / " + resource+")";
 853					}
 854				} else {
 855					readableIdentities[i] = UIHelper.tranlasteType(this,type) + " (" + resource+")";
 856				}
 857			} else {
 858				readableIdentities[i] = resource;
 859			}
 860		}
 861		builder.setSingleChoiceItems(readableIdentities,
 862				selectedResource.get(),
 863				new DialogInterface.OnClickListener() {
 864
 865					@Override
 866					public void onClick(DialogInterface dialog, int which) {
 867						selectedResource.set(which);
 868					}
 869				});
 870		builder.setNegativeButton(R.string.cancel, null);
 871		builder.setPositiveButton(R.string.ok, new OnClickListener() {
 872
 873			@Override
 874			public void onClick(DialogInterface dialog, int which) {
 875				try {
 876					Jid next = Jid.fromParts(contact.getJid().getLocalpart(),contact.getJid().getDomainpart(),resourceArray[selectedResource.get()]);
 877					conversation.setNextCounterpart(next);
 878				} catch (InvalidJidException e) {
 879					conversation.setNextCounterpart(null);
 880				}
 881				listener.onPresenceSelected();
 882			}
 883		});
 884		builder.create().show();
 885	}
 886
 887	protected void onActivityResult(int requestCode, int resultCode, final Intent data) {
 888		super.onActivityResult(requestCode, resultCode, data);
 889		if (requestCode == REQUEST_INVITE_TO_CONVERSATION && resultCode == RESULT_OK) {
 890			mPendingConferenceInvite = ConferenceInvite.parse(data);
 891			if (xmppConnectionServiceBound && mPendingConferenceInvite != null) {
 892				if (mPendingConferenceInvite.execute(this)) {
 893					mToast = Toast.makeText(this, R.string.creating_conference, Toast.LENGTH_LONG);
 894					mToast.show();
 895				}
 896				mPendingConferenceInvite = null;
 897			}
 898		}
 899	}
 900
 901
 902	private UiCallback<Conversation> adhocCallback = new UiCallback<Conversation>() {
 903		@Override
 904		public void success(final Conversation conversation) {
 905			runOnUiThread(new Runnable() {
 906				@Override
 907				public void run() {
 908					switchToConversation(conversation);
 909					hideToast();
 910				}
 911			});
 912		}
 913
 914		@Override
 915		public void error(final int errorCode, Conversation object) {
 916			runOnUiThread(new Runnable() {
 917				@Override
 918				public void run() {
 919					replaceToast(getString(errorCode));
 920				}
 921			});
 922		}
 923
 924		@Override
 925		public void userInputRequried(PendingIntent pi, Conversation object) {
 926
 927		}
 928	};
 929
 930	public int getTertiaryTextColor() {
 931		return this.mTertiaryTextColor;
 932	}
 933
 934	public int getSecondaryTextColor() {
 935		return this.mSecondaryTextColor;
 936	}
 937
 938	public int getPrimaryTextColor() {
 939		return this.mPrimaryTextColor;
 940	}
 941
 942	public int getWarningTextColor() {
 943		return this.mColorRed;
 944	}
 945
 946	public int getOnlineColor() {
 947		return this.mColorGreen;
 948	}
 949
 950	public int getPrimaryBackgroundColor() {
 951		return this.mPrimaryBackgroundColor;
 952	}
 953
 954	public int getSecondaryBackgroundColor() {
 955		return this.mSecondaryBackgroundColor;
 956	}
 957
 958	public int getPixel(int dp) {
 959		DisplayMetrics metrics = getResources().getDisplayMetrics();
 960		return ((int) (dp * metrics.density));
 961	}
 962
 963	public boolean copyTextToClipboard(String text, int labelResId) {
 964		ClipboardManager mClipBoardManager = (ClipboardManager) getSystemService(CLIPBOARD_SERVICE);
 965		String label = getResources().getString(labelResId);
 966		if (mClipBoardManager != null) {
 967			ClipData mClipData = ClipData.newPlainText(label, text);
 968			mClipBoardManager.setPrimaryClip(mClipData);
 969			return true;
 970		}
 971		return false;
 972	}
 973
 974	protected void registerNdefPushMessageCallback() {
 975		NfcAdapter nfcAdapter = NfcAdapter.getDefaultAdapter(this);
 976		if (nfcAdapter != null && nfcAdapter.isEnabled()) {
 977			nfcAdapter.setNdefPushMessageCallback(new NfcAdapter.CreateNdefMessageCallback() {
 978				@Override
 979				public NdefMessage createNdefMessage(NfcEvent nfcEvent) {
 980					return new NdefMessage(new NdefRecord[]{
 981							NdefRecord.createUri(getShareableUri()),
 982							NdefRecord.createApplicationRecord("eu.siacs.conversations")
 983					});
 984				}
 985			}, this);
 986		}
 987	}
 988
 989	protected boolean neverCompressPictures() {
 990		return getPreferences().getString("picture_compression", "auto").equals("never");
 991	}
 992
 993	protected boolean manuallyChangePresence() {
 994		return getPreferences().getBoolean(SettingsActivity.MANUALLY_CHANGE_PRESENCE, false);
 995	}
 996
 997	protected void unregisterNdefPushMessageCallback() {
 998		NfcAdapter nfcAdapter = NfcAdapter.getDefaultAdapter(this);
 999		if (nfcAdapter != null && nfcAdapter.isEnabled()) {
1000			nfcAdapter.setNdefPushMessageCallback(null,this);
1001		}
1002	}
1003
1004	protected String getShareableUri() {
1005		return null;
1006	}
1007
1008	protected void shareUri() {
1009		String uri = getShareableUri();
1010		if (uri == null || uri.isEmpty()) {
1011			return;
1012		}
1013		Intent shareIntent = new Intent();
1014		shareIntent.setAction(Intent.ACTION_SEND);
1015		shareIntent.putExtra(Intent.EXTRA_TEXT, getShareableUri());
1016		shareIntent.setType("text/plain");
1017		try {
1018			startActivity(Intent.createChooser(shareIntent, getText(R.string.share_uri_with)));
1019		} catch (ActivityNotFoundException e) {
1020			Toast.makeText(this, R.string.no_application_to_share_uri, Toast.LENGTH_SHORT).show();
1021		}
1022	}
1023
1024	@Override
1025	public void onResume() {
1026		super.onResume();
1027		if (this.getShareableUri()!=null) {
1028			this.registerNdefPushMessageCallback();
1029		}
1030	}
1031
1032	protected int findTheme() {
1033		Boolean dark   = getPreferences().getString("theme", "light").equals("dark");
1034		Boolean larger = getPreferences().getBoolean("use_larger_font", false);
1035
1036		if(dark) {
1037			if(larger)
1038				return R.style.ConversationsTheme_Dark_LargerText;
1039			else
1040				return R.style.ConversationsTheme_Dark;
1041		} else {
1042			if (larger)
1043				return R.style.ConversationsTheme_LargerText;
1044			else
1045				return R.style.ConversationsTheme;
1046		}
1047	}
1048
1049	@Override
1050	public void onPause() {
1051		super.onPause();
1052		this.unregisterNdefPushMessageCallback();
1053	}
1054
1055	protected void showQrCode() {
1056		String uri = getShareableUri();
1057		if (uri!=null) {
1058			Point size = new Point();
1059			getWindowManager().getDefaultDisplay().getSize(size);
1060			final int width = (size.x < size.y ? size.x : size.y);
1061			Bitmap bitmap = createQrCodeBitmap(uri, width);
1062			ImageView view = new ImageView(this);
1063			view.setBackgroundColor(Color.WHITE);
1064			view.setImageBitmap(bitmap);
1065			AlertDialog.Builder builder = new AlertDialog.Builder(this);
1066			builder.setView(view);
1067			builder.create().show();
1068		}
1069	}
1070
1071	protected Bitmap createQrCodeBitmap(String input, int size) {
1072		try {
1073			final AztecWriter AZTEC_WRITER = new AztecWriter();
1074			final Hashtable<EncodeHintType, Object> hints = new Hashtable<>();
1075			hints.put(EncodeHintType.ERROR_CORRECTION, 10);
1076			final BitMatrix result = AZTEC_WRITER.encode(input, BarcodeFormat.AZTEC, size, size, hints);
1077			final int width = result.getWidth();
1078			final int height = result.getHeight();
1079			final int[] pixels = new int[width * height];
1080			for (int y = 0; y < height; y++) {
1081				final int offset = y * width;
1082				for (int x = 0; x < width; x++) {
1083					pixels[offset + x] = result.get(x, y) ? Color.BLACK : Color.TRANSPARENT;
1084				}
1085			}
1086			final Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
1087			bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
1088			return bitmap;
1089		} catch (final Exception e) {
1090			return null;
1091		}
1092	}
1093
1094	protected Account extractAccount(Intent intent) {
1095		String jid = intent != null ? intent.getStringExtra(EXTRA_ACCOUNT) : null;
1096		try {
1097			return jid != null ? xmppConnectionService.findAccountByJid(Jid.fromString(jid)) : null;
1098		} catch (InvalidJidException e) {
1099			return null;
1100		}
1101	}
1102
1103	public static class ConferenceInvite {
1104		private String uuid;
1105		private List<Jid> jids = new ArrayList<>();
1106
1107		public static ConferenceInvite parse(Intent data) {
1108			ConferenceInvite invite = new ConferenceInvite();
1109			invite.uuid = data.getStringExtra("conversation");
1110			if (invite.uuid == null) {
1111				return null;
1112			}
1113			try {
1114				if (data.getBooleanExtra("multiple", false)) {
1115					String[] toAdd = data.getStringArrayExtra("contacts");
1116					for (String item : toAdd) {
1117						invite.jids.add(Jid.fromString(item));
1118					}
1119				} else {
1120					invite.jids.add(Jid.fromString(data.getStringExtra("contact")));
1121				}
1122			} catch (final InvalidJidException ignored) {
1123				return null;
1124			}
1125			return invite;
1126		}
1127
1128		public boolean execute(XmppActivity activity) {
1129			XmppConnectionService service = activity.xmppConnectionService;
1130			Conversation conversation = service.findConversationByUuid(this.uuid);
1131			if (conversation == null) {
1132				return false;
1133			}
1134			if (conversation.getMode() == Conversation.MODE_MULTI) {
1135				for (Jid jid : jids) {
1136					service.invite(conversation, jid);
1137				}
1138				return false;
1139			} else {
1140				jids.add(conversation.getJid().toBareJid());
1141				service.createAdhocConference(conversation.getAccount(), null, jids, activity.adhocCallback);
1142				return true;
1143			}
1144		}
1145	}
1146
1147	public AvatarService avatarService() {
1148		return xmppConnectionService.getAvatarService();
1149	}
1150
1151	class BitmapWorkerTask extends AsyncTask<Message, Void, Bitmap> {
1152		private final WeakReference<ImageView> imageViewReference;
1153		private Message message = null;
1154
1155		public BitmapWorkerTask(ImageView imageView) {
1156			imageViewReference = new WeakReference<>(imageView);
1157		}
1158
1159		@Override
1160		protected Bitmap doInBackground(Message... params) {
1161			if (isCancelled()) {
1162				return null;
1163			}
1164			message = params[0];
1165			try {
1166				return xmppConnectionService.getFileBackend().getThumbnail(
1167						message, (int) (metrics.density * 288), false);
1168			} catch (FileNotFoundException e) {
1169				return null;
1170			}
1171		}
1172
1173		@Override
1174		protected void onPostExecute(Bitmap bitmap) {
1175			if (bitmap != null && !isCancelled()) {
1176				final ImageView imageView = imageViewReference.get();
1177				if (imageView != null) {
1178					imageView.setImageBitmap(bitmap);
1179					imageView.setBackgroundColor(0x00000000);
1180				}
1181			}
1182		}
1183	}
1184
1185	public void loadBitmap(Message message, ImageView imageView) {
1186		Bitmap bm;
1187		try {
1188			bm = xmppConnectionService.getFileBackend().getThumbnail(message,
1189					(int) (metrics.density * 288), true);
1190		} catch (FileNotFoundException e) {
1191			bm = null;
1192		}
1193		if (bm != null) {
1194			cancelPotentialWork(message, imageView);
1195			imageView.setImageBitmap(bm);
1196			imageView.setBackgroundColor(0x00000000);
1197		} else {
1198			if (cancelPotentialWork(message, imageView)) {
1199				imageView.setBackgroundColor(0xff333333);
1200				imageView.setImageDrawable(null);
1201				final BitmapWorkerTask task = new BitmapWorkerTask(imageView);
1202				final AsyncDrawable asyncDrawable = new AsyncDrawable(
1203						getResources(), null, task);
1204				imageView.setImageDrawable(asyncDrawable);
1205				try {
1206					task.execute(message);
1207				} catch (final RejectedExecutionException ignored) {
1208					ignored.printStackTrace();
1209				}
1210			}
1211		}
1212	}
1213
1214	public static boolean cancelPotentialWork(Message message, ImageView imageView) {
1215		final BitmapWorkerTask bitmapWorkerTask = getBitmapWorkerTask(imageView);
1216
1217		if (bitmapWorkerTask != null) {
1218			final Message oldMessage = bitmapWorkerTask.message;
1219			if (oldMessage == null || message != oldMessage) {
1220				bitmapWorkerTask.cancel(true);
1221			} else {
1222				return false;
1223			}
1224		}
1225		return true;
1226	}
1227
1228	private static BitmapWorkerTask getBitmapWorkerTask(ImageView imageView) {
1229		if (imageView != null) {
1230			final Drawable drawable = imageView.getDrawable();
1231			if (drawable instanceof AsyncDrawable) {
1232				final AsyncDrawable asyncDrawable = (AsyncDrawable) drawable;
1233				return asyncDrawable.getBitmapWorkerTask();
1234			}
1235		}
1236		return null;
1237	}
1238
1239	static class AsyncDrawable extends BitmapDrawable {
1240		private final WeakReference<BitmapWorkerTask> bitmapWorkerTaskReference;
1241
1242		public AsyncDrawable(Resources res, Bitmap bitmap,
1243				BitmapWorkerTask bitmapWorkerTask) {
1244			super(res, bitmap);
1245			bitmapWorkerTaskReference = new WeakReference<>(
1246					bitmapWorkerTask);
1247		}
1248
1249		public BitmapWorkerTask getBitmapWorkerTask() {
1250			return bitmapWorkerTaskReference.get();
1251		}
1252	}
1253}