1package eu.siacs.conversations.ui;
   2
   3import android.annotation.SuppressLint;
   4import android.annotation.TargetApi;
   5import android.app.ActionBar;
   6import android.app.Activity;
   7import android.app.AlertDialog;
   8import android.app.AlertDialog.Builder;
   9import android.app.PendingIntent;
  10import android.content.ClipData;
  11import android.content.ClipboardManager;
  12import android.content.ComponentName;
  13import android.content.Context;
  14import android.content.DialogInterface;
  15import android.content.DialogInterface.OnClickListener;
  16import android.content.Intent;
  17import android.content.IntentSender.SendIntentException;
  18import android.content.ServiceConnection;
  19import android.content.SharedPreferences;
  20import android.content.pm.PackageManager;
  21import android.content.pm.ResolveInfo;
  22import android.content.res.Resources;
  23import android.graphics.Bitmap;
  24import android.graphics.Color;
  25import android.graphics.Point;
  26import android.graphics.drawable.BitmapDrawable;
  27import android.graphics.drawable.Drawable;
  28import android.net.Uri;
  29import android.nfc.NdefMessage;
  30import android.nfc.NdefRecord;
  31import android.nfc.NfcAdapter;
  32import android.nfc.NfcEvent;
  33import android.os.AsyncTask;
  34import android.os.Build;
  35import android.os.Bundle;
  36import android.os.Handler;
  37import android.os.IBinder;
  38import android.os.SystemClock;
  39import android.preference.PreferenceManager;
  40import android.text.InputType;
  41import android.util.DisplayMetrics;
  42import android.util.Log;
  43import android.view.MenuItem;
  44import android.view.View;
  45import android.view.inputmethod.InputMethodManager;
  46import android.widget.CompoundButton;
  47import android.widget.EditText;
  48import android.widget.ImageView;
  49import android.widget.LinearLayout;
  50import android.widget.TextView;
  51import android.widget.Toast;
  52
  53import com.google.zxing.BarcodeFormat;
  54import com.google.zxing.EncodeHintType;
  55import com.google.zxing.WriterException;
  56import com.google.zxing.common.BitMatrix;
  57import com.google.zxing.qrcode.QRCodeWriter;
  58import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
  59
  60import net.java.otr4j.session.SessionID;
  61
  62import java.io.FileNotFoundException;
  63import java.lang.ref.WeakReference;
  64import java.util.ArrayList;
  65import java.util.Hashtable;
  66import java.util.List;
  67import java.util.concurrent.RejectedExecutionException;
  68
  69import eu.siacs.conversations.Config;
  70import eu.siacs.conversations.R;
  71import eu.siacs.conversations.crypto.axolotl.XmppAxolotlSession;
  72import eu.siacs.conversations.entities.Account;
  73import eu.siacs.conversations.entities.Contact;
  74import eu.siacs.conversations.entities.Conversation;
  75import eu.siacs.conversations.entities.Message;
  76import eu.siacs.conversations.entities.MucOptions;
  77import eu.siacs.conversations.entities.Presences;
  78import eu.siacs.conversations.services.AvatarService;
  79import eu.siacs.conversations.services.XmppConnectionService;
  80import eu.siacs.conversations.services.XmppConnectionService.XmppConnectionBinder;
  81import eu.siacs.conversations.ui.widget.Switch;
  82import eu.siacs.conversations.utils.CryptoHelper;
  83import eu.siacs.conversations.utils.ExceptionHelper;
  84import eu.siacs.conversations.xmpp.OnKeyStatusUpdated;
  85import eu.siacs.conversations.xmpp.OnUpdateBlocklist;
  86import eu.siacs.conversations.xmpp.jid.InvalidJidException;
  87import eu.siacs.conversations.xmpp.jid.Jid;
  88
  89public abstract class XmppActivity extends Activity {
  90
  91	protected static final int REQUEST_ANNOUNCE_PGP = 0x0101;
  92	protected static final int REQUEST_INVITE_TO_CONVERSATION = 0x0102;
  93
  94	public XmppConnectionService xmppConnectionService;
  95	public boolean xmppConnectionServiceBound = false;
  96	protected boolean registeredListeners = false;
  97
  98	protected int mPrimaryTextColor;
  99	protected int mSecondaryTextColor;
 100	protected int mTertiaryTextColor;
 101	protected int mPrimaryBackgroundColor;
 102	protected int mSecondaryBackgroundColor;
 103	protected int mColorRed;
 104	protected int mColorOrange;
 105	protected int mColorGreen;
 106	protected int mPrimaryColor;
 107
 108	protected boolean mUseSubject = true;
 109
 110	private DisplayMetrics metrics;
 111	protected int mTheme;
 112	protected boolean mUsingEnterKey = false;
 113
 114	private long mLastUiRefresh = 0;
 115	private Handler mRefreshUiHandler = new Handler();
 116	private Runnable mRefreshUiRunnable = new Runnable() {
 117		@Override
 118		public void run() {
 119			mLastUiRefresh = SystemClock.elapsedRealtime();
 120			refreshUiReal();
 121		}
 122	};
 123
 124	protected ConferenceInvite mPendingConferenceInvite = null;
 125
 126
 127	protected final void refreshUi() {
 128		final long diff = SystemClock.elapsedRealtime() - mLastUiRefresh;
 129		if (diff > Config.REFRESH_UI_INTERVAL) {
 130			mRefreshUiHandler.removeCallbacks(mRefreshUiRunnable);
 131			runOnUiThread(mRefreshUiRunnable);
 132		} else {
 133			final long next = Config.REFRESH_UI_INTERVAL - diff;
 134			mRefreshUiHandler.removeCallbacks(mRefreshUiRunnable);
 135			mRefreshUiHandler.postDelayed(mRefreshUiRunnable,next);
 136		}
 137	}
 138
 139	abstract protected void refreshUiReal();
 140
 141	protected interface OnValueEdited {
 142		public void onValueEdited(String value);
 143	}
 144
 145	public interface OnPresenceSelected {
 146		public void onPresenceSelected();
 147	}
 148
 149	protected ServiceConnection mConnection = new ServiceConnection() {
 150
 151		@Override
 152		public void onServiceConnected(ComponentName className, IBinder service) {
 153			XmppConnectionBinder binder = (XmppConnectionBinder) service;
 154			xmppConnectionService = binder.getService();
 155			xmppConnectionServiceBound = true;
 156			if (!registeredListeners && shouldRegisterListeners()) {
 157				registerListeners();
 158				registeredListeners = true;
 159			}
 160			onBackendConnected();
 161		}
 162
 163		@Override
 164		public void onServiceDisconnected(ComponentName arg0) {
 165			xmppConnectionServiceBound = false;
 166		}
 167	};
 168
 169	@Override
 170	protected void onStart() {
 171		super.onStart();
 172		if (!xmppConnectionServiceBound) {
 173			connectToBackend();
 174		} else {
 175			if (!registeredListeners) {
 176				this.registerListeners();
 177				this.registeredListeners = true;
 178			}
 179			this.onBackendConnected();
 180		}
 181	}
 182
 183	@TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
 184	protected boolean shouldRegisterListeners() {
 185		if  (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
 186			return !isDestroyed() && !isFinishing();
 187		} else {
 188			return !isFinishing();
 189		}
 190	}
 191
 192	public void connectToBackend() {
 193		Intent intent = new Intent(this, XmppConnectionService.class);
 194		intent.setAction("ui");
 195		startService(intent);
 196		bindService(intent, mConnection, Context.BIND_AUTO_CREATE);
 197	}
 198
 199	@Override
 200	protected void onStop() {
 201		super.onStop();
 202		if (xmppConnectionServiceBound) {
 203			if (registeredListeners) {
 204				this.unregisterListeners();
 205				this.registeredListeners = false;
 206			}
 207			unbindService(mConnection);
 208			xmppConnectionServiceBound = false;
 209		}
 210	}
 211
 212	protected void hideKeyboard() {
 213		InputMethodManager inputManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
 214
 215		View focus = getCurrentFocus();
 216
 217		if (focus != null) {
 218
 219			inputManager.hideSoftInputFromWindow(focus.getWindowToken(),
 220					InputMethodManager.HIDE_NOT_ALWAYS);
 221		}
 222	}
 223
 224	public boolean hasPgp() {
 225		return xmppConnectionService.getPgpEngine() != null;
 226	}
 227
 228	public void showInstallPgpDialog() {
 229		Builder builder = new AlertDialog.Builder(this);
 230		builder.setTitle(getString(R.string.openkeychain_required));
 231		builder.setIconAttribute(android.R.attr.alertDialogIcon);
 232		builder.setMessage(getText(R.string.openkeychain_required_long));
 233		builder.setNegativeButton(getString(R.string.cancel), null);
 234		builder.setNeutralButton(getString(R.string.restart),
 235				new OnClickListener() {
 236
 237					@Override
 238					public void onClick(DialogInterface dialog, int which) {
 239						if (xmppConnectionServiceBound) {
 240							unbindService(mConnection);
 241							xmppConnectionServiceBound = false;
 242						}
 243						stopService(new Intent(XmppActivity.this,
 244									XmppConnectionService.class));
 245						finish();
 246					}
 247				});
 248		builder.setPositiveButton(getString(R.string.install),
 249				new OnClickListener() {
 250
 251					@Override
 252					public void onClick(DialogInterface dialog, int which) {
 253						Uri uri = Uri
 254							.parse("market://details?id=org.sufficientlysecure.keychain");
 255						Intent marketIntent = new Intent(Intent.ACTION_VIEW,
 256								uri);
 257						PackageManager manager = getApplicationContext()
 258							.getPackageManager();
 259						List<ResolveInfo> infos = manager
 260							.queryIntentActivities(marketIntent, 0);
 261						if (infos.size() > 0) {
 262							startActivity(marketIntent);
 263						} else {
 264							uri = Uri.parse("http://www.openkeychain.org/");
 265							Intent browserIntent = new Intent(
 266									Intent.ACTION_VIEW, uri);
 267							startActivity(browserIntent);
 268						}
 269						finish();
 270					}
 271				});
 272		builder.create().show();
 273	}
 274
 275	abstract void onBackendConnected();
 276
 277	protected void registerListeners() {
 278		if (this instanceof XmppConnectionService.OnConversationUpdate) {
 279			this.xmppConnectionService.setOnConversationListChangedListener((XmppConnectionService.OnConversationUpdate) this);
 280		}
 281		if (this instanceof XmppConnectionService.OnAccountUpdate) {
 282			this.xmppConnectionService.setOnAccountListChangedListener((XmppConnectionService.OnAccountUpdate) this);
 283		}
 284		if (this instanceof XmppConnectionService.OnCaptchaRequested) {
 285			this.xmppConnectionService.setOnCaptchaRequestedListener((XmppConnectionService.OnCaptchaRequested) this);
 286		}
 287		if (this instanceof XmppConnectionService.OnRosterUpdate) {
 288			this.xmppConnectionService.setOnRosterUpdateListener((XmppConnectionService.OnRosterUpdate) this);
 289		}
 290		if (this instanceof XmppConnectionService.OnMucRosterUpdate) {
 291			this.xmppConnectionService.setOnMucRosterUpdateListener((XmppConnectionService.OnMucRosterUpdate) this);
 292		}
 293		if (this instanceof OnUpdateBlocklist) {
 294			this.xmppConnectionService.setOnUpdateBlocklistListener((OnUpdateBlocklist) this);
 295		}
 296		if (this instanceof XmppConnectionService.OnShowErrorToast) {
 297			this.xmppConnectionService.setOnShowErrorToastListener((XmppConnectionService.OnShowErrorToast) this);
 298		}
 299		if (this instanceof OnKeyStatusUpdated) {
 300			this.xmppConnectionService.setOnKeyStatusUpdatedListener((OnKeyStatusUpdated) this);
 301		}
 302	}
 303
 304	protected void unregisterListeners() {
 305		if (this instanceof XmppConnectionService.OnConversationUpdate) {
 306			this.xmppConnectionService.removeOnConversationListChangedListener();
 307		}
 308		if (this instanceof XmppConnectionService.OnAccountUpdate) {
 309			this.xmppConnectionService.removeOnAccountListChangedListener();
 310		}
 311		if (this instanceof XmppConnectionService.OnCaptchaRequested) {
 312			this.xmppConnectionService.removeOnCaptchaRequestedListener();
 313		}
 314		if (this instanceof XmppConnectionService.OnRosterUpdate) {
 315			this.xmppConnectionService.removeOnRosterUpdateListener();
 316		}
 317		if (this instanceof XmppConnectionService.OnMucRosterUpdate) {
 318			this.xmppConnectionService.removeOnMucRosterUpdateListener();
 319		}
 320		if (this instanceof OnUpdateBlocklist) {
 321			this.xmppConnectionService.removeOnUpdateBlocklistListener();
 322		}
 323		if (this instanceof XmppConnectionService.OnShowErrorToast) {
 324			this.xmppConnectionService.removeOnShowErrorToastListener();
 325		}
 326		if (this instanceof OnKeyStatusUpdated) {
 327			this.xmppConnectionService.removeOnNewKeysAvailableListener();
 328		}
 329	}
 330
 331	@Override
 332	public boolean onOptionsItemSelected(final MenuItem item) {
 333		switch (item.getItemId()) {
 334			case R.id.action_settings:
 335				startActivity(new Intent(this, SettingsActivity.class));
 336				break;
 337			case R.id.action_accounts:
 338				startActivity(new Intent(this, ManageAccountActivity.class));
 339				break;
 340			case android.R.id.home:
 341				finish();
 342				break;
 343			case R.id.action_show_qr_code:
 344				showQrCode();
 345				break;
 346		}
 347		return super.onOptionsItemSelected(item);
 348	}
 349
 350	@Override
 351	protected void onCreate(Bundle savedInstanceState) {
 352		super.onCreate(savedInstanceState);
 353		metrics = getResources().getDisplayMetrics();
 354		ExceptionHelper.init(getApplicationContext());
 355		mPrimaryTextColor = getResources().getColor(R.color.black87);
 356		mSecondaryTextColor = getResources().getColor(R.color.black54);
 357		mTertiaryTextColor = getResources().getColor(R.color.black12);
 358		mColorRed = getResources().getColor(R.color.red800);
 359		mColorOrange = getResources().getColor(R.color.orange500);
 360		mColorGreen = getResources().getColor(R.color.green500);
 361		mPrimaryColor = getResources().getColor(R.color.primary);
 362		mPrimaryBackgroundColor = getResources().getColor(R.color.grey50);
 363		mSecondaryBackgroundColor = getResources().getColor(R.color.grey200);
 364		this.mTheme = findTheme();
 365		setTheme(this.mTheme);
 366		this.mUsingEnterKey = usingEnterKey();
 367		mUseSubject = getPreferences().getBoolean("use_subject", true);
 368		final ActionBar ab = getActionBar();
 369		if (ab!=null) {
 370			ab.setDisplayHomeAsUpEnabled(true);
 371		}
 372	}
 373
 374	protected boolean usingEnterKey() {
 375		return getPreferences().getBoolean("display_enter_key", false);
 376	}
 377
 378	protected SharedPreferences getPreferences() {
 379		return PreferenceManager
 380			.getDefaultSharedPreferences(getApplicationContext());
 381	}
 382
 383	public boolean useSubjectToIdentifyConference() {
 384		return mUseSubject;
 385	}
 386
 387	public void switchToConversation(Conversation conversation) {
 388		switchToConversation(conversation, null, false);
 389	}
 390
 391	public void switchToConversation(Conversation conversation, String text,
 392			boolean newTask) {
 393		switchToConversation(conversation,text,null,false,newTask);
 394	}
 395
 396	public void highlightInMuc(Conversation conversation, String nick) {
 397		switchToConversation(conversation, null, nick, false, false);
 398	}
 399
 400	public void privateMsgInMuc(Conversation conversation, String nick) {
 401		switchToConversation(conversation, null, nick, true, false);
 402	}
 403
 404	private void switchToConversation(Conversation conversation, String text, String nick, boolean pm, boolean newTask) {
 405		Intent viewConversationIntent = new Intent(this,
 406				ConversationActivity.class);
 407		viewConversationIntent.setAction(Intent.ACTION_VIEW);
 408		viewConversationIntent.putExtra(ConversationActivity.CONVERSATION,
 409				conversation.getUuid());
 410		if (text != null) {
 411			viewConversationIntent.putExtra(ConversationActivity.TEXT, text);
 412		}
 413		if (nick != null) {
 414			viewConversationIntent.putExtra(ConversationActivity.NICK, nick);
 415			viewConversationIntent.putExtra(ConversationActivity.PRIVATE_MESSAGE,pm);
 416		}
 417		viewConversationIntent.setType(ConversationActivity.VIEW_CONVERSATION);
 418		if (newTask) {
 419			viewConversationIntent.setFlags(viewConversationIntent.getFlags()
 420					| Intent.FLAG_ACTIVITY_NEW_TASK
 421					| Intent.FLAG_ACTIVITY_SINGLE_TOP);
 422		} else {
 423			viewConversationIntent.setFlags(viewConversationIntent.getFlags()
 424					| Intent.FLAG_ACTIVITY_CLEAR_TOP);
 425		}
 426		startActivity(viewConversationIntent);
 427		finish();
 428	}
 429
 430	public void switchToContactDetails(Contact contact) {
 431		switchToContactDetails(contact, null);
 432	}
 433
 434	public void switchToContactDetails(Contact contact, String messageFingerprint) {
 435		Intent intent = new Intent(this, ContactDetailsActivity.class);
 436		intent.setAction(ContactDetailsActivity.ACTION_VIEW_CONTACT);
 437		intent.putExtra("account", contact.getAccount().getJid().toBareJid().toString());
 438		intent.putExtra("contact", contact.getJid().toString());
 439		intent.putExtra("fingerprint", messageFingerprint);
 440		startActivity(intent);
 441	}
 442
 443	public void switchToAccount(Account account) {
 444		switchToAccount(account, false);
 445	}
 446
 447	public void switchToAccount(Account account, boolean init) {
 448		Intent intent = new Intent(this, EditAccountActivity.class);
 449		intent.putExtra("jid", account.getJid().toBareJid().toString());
 450		intent.putExtra("init", init);
 451		startActivity(intent);
 452	}
 453
 454	protected void inviteToConversation(Conversation conversation) {
 455		Intent intent = new Intent(getApplicationContext(),
 456				ChooseContactActivity.class);
 457		List<String> contacts = new ArrayList<>();
 458		if (conversation.getMode() == Conversation.MODE_MULTI) {
 459			for (MucOptions.User user : conversation.getMucOptions().getUsers()) {
 460				Jid jid = user.getJid();
 461				if (jid != null) {
 462					contacts.add(jid.toBareJid().toString());
 463				}
 464			}
 465		} else {
 466			contacts.add(conversation.getJid().toBareJid().toString());
 467		}
 468		intent.putExtra("filter_contacts", contacts.toArray(new String[contacts.size()]));
 469		intent.putExtra("conversation", conversation.getUuid());
 470		intent.putExtra("multiple", true);
 471		startActivityForResult(intent, REQUEST_INVITE_TO_CONVERSATION);
 472	}
 473
 474	protected void announcePgp(Account account, final Conversation conversation) {
 475		xmppConnectionService.getPgpEngine().generateSignature(account,
 476				"online", new UiCallback<Account>() {
 477
 478					@Override
 479					public void userInputRequried(PendingIntent pi,
 480												  Account account) {
 481						try {
 482							startIntentSenderForResult(pi.getIntentSender(),
 483									REQUEST_ANNOUNCE_PGP, null, 0, 0, 0);
 484						} catch (final SendIntentException ignored) {
 485						}
 486					}
 487
 488					@Override
 489					public void success(Account account) {
 490						xmppConnectionService.databaseBackend.updateAccount(account);
 491						xmppConnectionService.sendPresence(account);
 492						if (conversation != null) {
 493							conversation.setNextEncryption(Message.ENCRYPTION_PGP);
 494							xmppConnectionService.databaseBackend.updateConversation(conversation);
 495						}
 496					}
 497
 498					@Override
 499					public void error(int error, Account account) {
 500						displayErrorDialog(error);
 501					}
 502				});
 503	}
 504
 505	protected void displayErrorDialog(final int errorCode) {
 506		runOnUiThread(new Runnable() {
 507
 508			@Override
 509			public void run() {
 510				AlertDialog.Builder builder = new AlertDialog.Builder(
 511						XmppActivity.this);
 512				builder.setIconAttribute(android.R.attr.alertDialogIcon);
 513				builder.setTitle(getString(R.string.error));
 514				builder.setMessage(errorCode);
 515				builder.setNeutralButton(R.string.accept, null);
 516				builder.create().show();
 517			}
 518		});
 519
 520	}
 521
 522	protected void showAddToRosterDialog(final Conversation conversation) {
 523		showAddToRosterDialog(conversation.getContact());
 524	}
 525
 526	protected void showAddToRosterDialog(final Contact contact) {
 527		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 528		builder.setTitle(contact.getJid().toString());
 529		builder.setMessage(getString(R.string.not_in_roster));
 530		builder.setNegativeButton(getString(R.string.cancel), null);
 531		builder.setPositiveButton(getString(R.string.add_contact),
 532				new DialogInterface.OnClickListener() {
 533
 534					@Override
 535					public void onClick(DialogInterface dialog, int which) {
 536						final Jid jid = contact.getJid();
 537						Account account = contact.getAccount();
 538						Contact contact = account.getRoster().getContact(jid);
 539						xmppConnectionService.createContact(contact);
 540					}
 541				});
 542		builder.create().show();
 543	}
 544
 545	private void showAskForPresenceDialog(final Contact contact) {
 546		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 547		builder.setTitle(contact.getJid().toString());
 548		builder.setMessage(R.string.request_presence_updates);
 549		builder.setNegativeButton(R.string.cancel, null);
 550		builder.setPositiveButton(R.string.request_now,
 551				new DialogInterface.OnClickListener() {
 552
 553					@Override
 554					public void onClick(DialogInterface dialog, int which) {
 555						if (xmppConnectionServiceBound) {
 556							xmppConnectionService.sendPresencePacket(contact
 557									.getAccount(), xmppConnectionService
 558									.getPresenceGenerator()
 559									.requestPresenceUpdatesFrom(contact));
 560						}
 561					}
 562				});
 563		builder.create().show();
 564	}
 565
 566	private void warnMutalPresenceSubscription(final Conversation conversation,
 567			final OnPresenceSelected listener) {
 568		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 569		builder.setTitle(conversation.getContact().getJid().toString());
 570		builder.setMessage(R.string.without_mutual_presence_updates);
 571		builder.setNegativeButton(R.string.cancel, null);
 572		builder.setPositiveButton(R.string.ignore, new OnClickListener() {
 573
 574			@Override
 575			public void onClick(DialogInterface dialog, int which) {
 576				conversation.setNextCounterpart(null);
 577				if (listener != null) {
 578					listener.onPresenceSelected();
 579				}
 580			}
 581		});
 582		builder.create().show();
 583	}
 584
 585	protected void quickEdit(String previousValue, OnValueEdited callback) {
 586		quickEdit(previousValue, callback, false);
 587	}
 588
 589	protected void quickPasswordEdit(String previousValue,
 590			OnValueEdited callback) {
 591		quickEdit(previousValue, callback, true);
 592	}
 593
 594	@SuppressLint("InflateParams")
 595	private void quickEdit(final String previousValue,
 596			final OnValueEdited callback, boolean password) {
 597		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 598		View view = getLayoutInflater().inflate(R.layout.quickedit, null);
 599		final EditText editor = (EditText) view.findViewById(R.id.editor);
 600		OnClickListener mClickListener = new OnClickListener() {
 601
 602			@Override
 603			public void onClick(DialogInterface dialog, int which) {
 604				String value = editor.getText().toString();
 605				if (!previousValue.equals(value) && value.trim().length() > 0) {
 606					callback.onValueEdited(value);
 607				}
 608			}
 609		};
 610		if (password) {
 611			editor.setInputType(InputType.TYPE_CLASS_TEXT
 612					| InputType.TYPE_TEXT_VARIATION_PASSWORD);
 613			editor.setHint(R.string.password);
 614			builder.setPositiveButton(R.string.accept, mClickListener);
 615		} else {
 616			builder.setPositiveButton(R.string.edit, mClickListener);
 617		}
 618		editor.requestFocus();
 619		editor.setText(previousValue);
 620		builder.setView(view);
 621		builder.setNegativeButton(R.string.cancel, null);
 622		builder.create().show();
 623	}
 624
 625	protected boolean addFingerprintRow(LinearLayout keys, final Account account, final String fingerprint, boolean highlight) {
 626		final XmppAxolotlSession.Trust trust = account.getAxolotlService()
 627				.getFingerprintTrust(fingerprint);
 628		if (trust == null) {
 629			return false;
 630		}
 631		return addFingerprintRowWithListeners(keys, account, fingerprint, highlight, trust, true,
 632				new CompoundButton.OnCheckedChangeListener() {
 633					@Override
 634					public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
 635						account.getAxolotlService().setFingerprintTrust(fingerprint,
 636								(isChecked) ? XmppAxolotlSession.Trust.TRUSTED :
 637										XmppAxolotlSession.Trust.UNTRUSTED);
 638					}
 639				},
 640				new View.OnClickListener() {
 641					@Override
 642					public void onClick(View v) {
 643						account.getAxolotlService().setFingerprintTrust(fingerprint,
 644								XmppAxolotlSession.Trust.UNTRUSTED);
 645						v.setEnabled(true);
 646					}
 647				}
 648
 649		);
 650	}
 651
 652	protected boolean addFingerprintRowWithListeners(LinearLayout keys, final Account account,
 653	                                                 final String fingerprint,
 654	                                                 boolean highlight,
 655	                                                 XmppAxolotlSession.Trust trust,
 656	                                                 boolean showTag,
 657	                                                 CompoundButton.OnCheckedChangeListener
 658			                                                 onCheckedChangeListener,
 659	                                                 View.OnClickListener onClickListener) {
 660		if (trust == XmppAxolotlSession.Trust.COMPROMISED) {
 661			return false;
 662		}
 663		View view = getLayoutInflater().inflate(R.layout.contact_key, keys, false);
 664		TextView key = (TextView) view.findViewById(R.id.key);
 665		TextView keyType = (TextView) view.findViewById(R.id.key_type);
 666		Switch trustToggle = (Switch) view.findViewById(R.id.tgl_trust);
 667		trustToggle.setVisibility(View.VISIBLE);
 668		trustToggle.setOnCheckedChangeListener(onCheckedChangeListener);
 669		trustToggle.setOnClickListener(onClickListener);
 670		view.setOnLongClickListener(new View.OnLongClickListener() {
 671			@Override
 672			public boolean onLongClick(View v) {
 673				showPurgeKeyDialog(account, fingerprint);
 674				return true;
 675			}
 676		});
 677
 678		switch (trust) {
 679			case UNTRUSTED:
 680			case TRUSTED:
 681				trustToggle.setChecked(trust == XmppAxolotlSession.Trust.TRUSTED, false);
 682				trustToggle.setEnabled(true);
 683				key.setTextColor(getPrimaryTextColor());
 684				keyType.setTextColor(getSecondaryTextColor());
 685				break;
 686			case UNDECIDED:
 687				trustToggle.setChecked(false, false);
 688				trustToggle.setEnabled(false);
 689				key.setTextColor(getPrimaryTextColor());
 690				keyType.setTextColor(getSecondaryTextColor());
 691				break;
 692			case INACTIVE_UNTRUSTED:
 693			case INACTIVE_UNDECIDED:
 694				trustToggle.setOnClickListener(null);
 695				trustToggle.setChecked(false, false);
 696				trustToggle.setEnabled(false);
 697				key.setTextColor(getTertiaryTextColor());
 698				keyType.setTextColor(getTertiaryTextColor());
 699				break;
 700			case INACTIVE_TRUSTED:
 701				trustToggle.setOnClickListener(null);
 702				trustToggle.setChecked(true, false);
 703				trustToggle.setEnabled(false);
 704				key.setTextColor(getTertiaryTextColor());
 705				keyType.setTextColor(getTertiaryTextColor());
 706				break;
 707		}
 708
 709		if (showTag) {
 710			keyType.setText(getString(R.string.omemo_fingerprint));
 711		} else {
 712			keyType.setVisibility(View.GONE);
 713		}
 714		if (highlight) {
 715			keyType.setTextColor(getResources().getColor(R.color.accent));
 716			keyType.setText(getString(R.string.omemo_fingerprint_selected_message));
 717		} else {
 718			keyType.setText(getString(R.string.omemo_fingerprint));
 719		}
 720
 721		key.setText(CryptoHelper.prettifyFingerprint(fingerprint));
 722		keys.addView(view);
 723		return true;
 724	}
 725
 726	public void showPurgeKeyDialog(final Account account, final String fingerprint) {
 727		Builder builder = new Builder(this);
 728		builder.setTitle(getString(R.string.purge_key));
 729		builder.setIconAttribute(android.R.attr.alertDialogIcon);
 730		builder.setMessage(getString(R.string.purge_key_desc_part1)
 731				+ "\n\n" + CryptoHelper.prettifyFingerprint(fingerprint)
 732				+ "\n\n" + getString(R.string.purge_key_desc_part2));
 733		builder.setNegativeButton(getString(R.string.cancel), null);
 734		builder.setPositiveButton(getString(R.string.accept),
 735				new DialogInterface.OnClickListener() {
 736					@Override
 737					public void onClick(DialogInterface dialog, int which) {
 738						account.getAxolotlService().purgeKey(fingerprint);
 739						refreshUi();
 740					}
 741				});
 742		builder.create().show();
 743	}
 744
 745	public void selectPresence(final Conversation conversation,
 746			final OnPresenceSelected listener) {
 747		final Contact contact = conversation.getContact();
 748		if (conversation.hasValidOtrSession()) {
 749			SessionID id = conversation.getOtrSession().getSessionID();
 750			Jid jid;
 751			try {
 752				jid = Jid.fromString(id.getAccountID() + "/" + id.getUserID());
 753			} catch (InvalidJidException e) {
 754				jid = null;
 755			}
 756			conversation.setNextCounterpart(jid);
 757			listener.onPresenceSelected();
 758		} else 	if (!contact.showInRoster()) {
 759			showAddToRosterDialog(conversation);
 760		} else {
 761			Presences presences = contact.getPresences();
 762			if (presences.size() == 0) {
 763				if (!contact.getOption(Contact.Options.TO)
 764						&& !contact.getOption(Contact.Options.ASKING)
 765						&& contact.getAccount().getStatus() == Account.State.ONLINE) {
 766					showAskForPresenceDialog(contact);
 767				} else if (!contact.getOption(Contact.Options.TO)
 768						|| !contact.getOption(Contact.Options.FROM)) {
 769					warnMutalPresenceSubscription(conversation, listener);
 770				} else {
 771					conversation.setNextCounterpart(null);
 772					listener.onPresenceSelected();
 773				}
 774			} else if (presences.size() == 1) {
 775				String presence = presences.asStringArray()[0];
 776				try {
 777					conversation.setNextCounterpart(Jid.fromParts(contact.getJid().getLocalpart(),contact.getJid().getDomainpart(),presence));
 778				} catch (InvalidJidException e) {
 779					conversation.setNextCounterpart(null);
 780				}
 781				listener.onPresenceSelected();
 782			} else {
 783				final StringBuilder presence = new StringBuilder();
 784				AlertDialog.Builder builder = new AlertDialog.Builder(this);
 785				builder.setTitle(getString(R.string.choose_presence));
 786				final String[] presencesArray = presences.asStringArray();
 787				int preselectedPresence = 0;
 788				for (int i = 0; i < presencesArray.length; ++i) {
 789					if (presencesArray[i].equals(contact.lastseen.presence)) {
 790						preselectedPresence = i;
 791						break;
 792					}
 793				}
 794				presence.append(presencesArray[preselectedPresence]);
 795				builder.setSingleChoiceItems(presencesArray,
 796						preselectedPresence,
 797						new DialogInterface.OnClickListener() {
 798
 799							@Override
 800							public void onClick(DialogInterface dialog,
 801									int which) {
 802								presence.delete(0, presence.length());
 803								presence.append(presencesArray[which]);
 804							}
 805						});
 806				builder.setNegativeButton(R.string.cancel, null);
 807				builder.setPositiveButton(R.string.ok, new OnClickListener() {
 808
 809					@Override
 810					public void onClick(DialogInterface dialog, int which) {
 811						try {
 812							conversation.setNextCounterpart(Jid.fromParts(contact.getJid().getLocalpart(),contact.getJid().getDomainpart(),presence.toString()));
 813						} catch (InvalidJidException e) {
 814							conversation.setNextCounterpart(null);
 815						}
 816						listener.onPresenceSelected();
 817					}
 818				});
 819				builder.create().show();
 820			}
 821		}
 822	}
 823
 824	protected void onActivityResult(int requestCode, int resultCode,
 825			final Intent data) {
 826		super.onActivityResult(requestCode, resultCode, data);
 827		if (requestCode == REQUEST_INVITE_TO_CONVERSATION && resultCode == RESULT_OK) {
 828			mPendingConferenceInvite = ConferenceInvite.parse(data);
 829			if (xmppConnectionServiceBound && mPendingConferenceInvite != null) {
 830				mPendingConferenceInvite.execute(this);
 831				mPendingConferenceInvite = null;
 832			}
 833		}
 834	}
 835
 836	private UiCallback<Conversation> adhocCallback = new UiCallback<Conversation>() {
 837		@Override
 838		public void success(final Conversation conversation) {
 839			switchToConversation(conversation);
 840			runOnUiThread(new Runnable() {
 841				@Override
 842				public void run() {
 843					Toast.makeText(XmppActivity.this,R.string.conference_created,Toast.LENGTH_LONG).show();
 844				}
 845			});
 846		}
 847
 848		@Override
 849		public void error(final int errorCode, Conversation object) {
 850			runOnUiThread(new Runnable() {
 851				@Override
 852				public void run() {
 853					Toast.makeText(XmppActivity.this,errorCode,Toast.LENGTH_LONG).show();
 854				}
 855			});
 856		}
 857
 858		@Override
 859		public void userInputRequried(PendingIntent pi, Conversation object) {
 860
 861		}
 862	};
 863
 864	public int getTertiaryTextColor() {
 865		return this.mTertiaryTextColor;
 866	}
 867
 868	public int getSecondaryTextColor() {
 869		return this.mSecondaryTextColor;
 870	}
 871
 872	public int getPrimaryTextColor() {
 873		return this.mPrimaryTextColor;
 874	}
 875
 876	public int getWarningTextColor() {
 877		return this.mColorRed;
 878	}
 879
 880	public int getOnlineColor() {
 881		return this.mColorGreen;
 882	}
 883
 884	public int getPrimaryBackgroundColor() {
 885		return this.mPrimaryBackgroundColor;
 886	}
 887
 888	public int getSecondaryBackgroundColor() {
 889		return this.mSecondaryBackgroundColor;
 890	}
 891
 892	public int getPixel(int dp) {
 893		DisplayMetrics metrics = getResources().getDisplayMetrics();
 894		return ((int) (dp * metrics.density));
 895	}
 896
 897	public boolean copyTextToClipboard(String text, int labelResId) {
 898		ClipboardManager mClipBoardManager = (ClipboardManager) getSystemService(CLIPBOARD_SERVICE);
 899		String label = getResources().getString(labelResId);
 900		if (mClipBoardManager != null) {
 901			ClipData mClipData = ClipData.newPlainText(label, text);
 902			mClipBoardManager.setPrimaryClip(mClipData);
 903			return true;
 904		}
 905		return false;
 906	}
 907
 908	protected void registerNdefPushMessageCallback() {
 909		NfcAdapter nfcAdapter = NfcAdapter.getDefaultAdapter(this);
 910		if (nfcAdapter != null && nfcAdapter.isEnabled()) {
 911			nfcAdapter.setNdefPushMessageCallback(new NfcAdapter.CreateNdefMessageCallback() {
 912				@Override
 913				public NdefMessage createNdefMessage(NfcEvent nfcEvent) {
 914					return new NdefMessage(new NdefRecord[]{
 915						NdefRecord.createUri(getShareableUri()),
 916							NdefRecord.createApplicationRecord("eu.siacs.conversations")
 917					});
 918				}
 919			}, this);
 920		}
 921	}
 922
 923	protected void unregisterNdefPushMessageCallback() {
 924		NfcAdapter nfcAdapter = NfcAdapter.getDefaultAdapter(this);
 925		if (nfcAdapter != null && nfcAdapter.isEnabled()) {
 926			nfcAdapter.setNdefPushMessageCallback(null,this);
 927		}
 928	}
 929
 930	protected String getShareableUri() {
 931		return null;
 932	}
 933
 934	@Override
 935	public void onResume() {
 936		super.onResume();
 937		if (this.getShareableUri()!=null) {
 938			this.registerNdefPushMessageCallback();
 939		}
 940	}
 941
 942	protected int findTheme() {
 943		if (getPreferences().getBoolean("use_larger_font", false)) {
 944			return R.style.ConversationsTheme_LargerText;
 945		} else {
 946			return R.style.ConversationsTheme;
 947		}
 948	}
 949
 950	@Override
 951	public void onPause() {
 952		super.onPause();
 953		this.unregisterNdefPushMessageCallback();
 954	}
 955
 956	protected void showQrCode() {
 957		String uri = getShareableUri();
 958		if (uri!=null) {
 959			Point size = new Point();
 960			getWindowManager().getDefaultDisplay().getSize(size);
 961			final int width = (size.x < size.y ? size.x : size.y);
 962			Bitmap bitmap = createQrCodeBitmap(uri, width);
 963			ImageView view = new ImageView(this);
 964			view.setImageBitmap(bitmap);
 965			AlertDialog.Builder builder = new AlertDialog.Builder(this);
 966			builder.setView(view);
 967			builder.create().show();
 968		}
 969	}
 970
 971	protected Bitmap createQrCodeBitmap(String input, int size) {
 972		Log.d(Config.LOGTAG,"qr code requested size: "+size);
 973		try {
 974			final QRCodeWriter QR_CODE_WRITER = new QRCodeWriter();
 975			final Hashtable<EncodeHintType, Object> hints = new Hashtable<>();
 976			hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.M);
 977			final BitMatrix result = QR_CODE_WRITER.encode(input, BarcodeFormat.QR_CODE, size, size, hints);
 978			final int width = result.getWidth();
 979			final int height = result.getHeight();
 980			final int[] pixels = new int[width * height];
 981			for (int y = 0; y < height; y++) {
 982				final int offset = y * width;
 983				for (int x = 0; x < width; x++) {
 984					pixels[offset + x] = result.get(x, y) ? Color.BLACK : Color.TRANSPARENT;
 985				}
 986			}
 987			final Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
 988			Log.d(Config.LOGTAG,"output size: "+width+"x"+height);
 989			bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
 990			return bitmap;
 991		} catch (final WriterException e) {
 992			return null;
 993		}
 994	}
 995
 996	public static class ConferenceInvite {
 997		private String uuid;
 998		private List<Jid> jids = new ArrayList<>();
 999
1000		public static ConferenceInvite parse(Intent data) {
1001			ConferenceInvite invite = new ConferenceInvite();
1002			invite.uuid = data.getStringExtra("conversation");
1003			if (invite.uuid == null) {
1004				return null;
1005			}
1006			try {
1007				if (data.getBooleanExtra("multiple", false)) {
1008					String[] toAdd = data.getStringArrayExtra("contacts");
1009					for (String item : toAdd) {
1010						invite.jids.add(Jid.fromString(item));
1011					}
1012				} else {
1013					invite.jids.add(Jid.fromString(data.getStringExtra("contact")));
1014				}
1015			} catch (final InvalidJidException ignored) {
1016				return null;
1017			}
1018			return invite;
1019		}
1020
1021		public void execute(XmppActivity activity) {
1022			XmppConnectionService service = activity.xmppConnectionService;
1023			Conversation conversation = service.findConversationByUuid(this.uuid);
1024			if (conversation == null) {
1025				return;
1026			}
1027			if (conversation.getMode() == Conversation.MODE_MULTI) {
1028				for (Jid jid : jids) {
1029					service.invite(conversation, jid);
1030				}
1031			} else {
1032				jids.add(conversation.getJid().toBareJid());
1033				service.createAdhocConference(conversation.getAccount(), jids, activity.adhocCallback);
1034			}
1035		}
1036	}
1037
1038	public AvatarService avatarService() {
1039		return xmppConnectionService.getAvatarService();
1040	}
1041
1042	class BitmapWorkerTask extends AsyncTask<Message, Void, Bitmap> {
1043		private final WeakReference<ImageView> imageViewReference;
1044		private Message message = null;
1045
1046		public BitmapWorkerTask(ImageView imageView) {
1047			imageViewReference = new WeakReference<>(imageView);
1048		}
1049
1050		@Override
1051		protected Bitmap doInBackground(Message... params) {
1052			message = params[0];
1053			try {
1054				return xmppConnectionService.getFileBackend().getThumbnail(
1055						message, (int) (metrics.density * 288), false);
1056			} catch (FileNotFoundException e) {
1057				return null;
1058			}
1059		}
1060
1061		@Override
1062		protected void onPostExecute(Bitmap bitmap) {
1063			if (bitmap != null) {
1064				final ImageView imageView = imageViewReference.get();
1065				if (imageView != null) {
1066					imageView.setImageBitmap(bitmap);
1067					imageView.setBackgroundColor(0x00000000);
1068				}
1069			}
1070		}
1071	}
1072
1073	public void loadBitmap(Message message, ImageView imageView) {
1074		Bitmap bm;
1075		try {
1076			bm = xmppConnectionService.getFileBackend().getThumbnail(message,
1077					(int) (metrics.density * 288), true);
1078		} catch (FileNotFoundException e) {
1079			bm = null;
1080		}
1081		if (bm != null) {
1082			imageView.setImageBitmap(bm);
1083			imageView.setBackgroundColor(0x00000000);
1084		} else {
1085			if (cancelPotentialWork(message, imageView)) {
1086				imageView.setBackgroundColor(0xff333333);
1087				final BitmapWorkerTask task = new BitmapWorkerTask(imageView);
1088				final AsyncDrawable asyncDrawable = new AsyncDrawable(
1089						getResources(), null, task);
1090				imageView.setImageDrawable(asyncDrawable);
1091				try {
1092					task.execute(message);
1093				} catch (final RejectedExecutionException ignored) {
1094				}
1095			}
1096		}
1097	}
1098
1099	public static boolean cancelPotentialWork(Message message,
1100			ImageView imageView) {
1101		final BitmapWorkerTask bitmapWorkerTask = getBitmapWorkerTask(imageView);
1102
1103		if (bitmapWorkerTask != null) {
1104			final Message oldMessage = bitmapWorkerTask.message;
1105			if (oldMessage == null || message != oldMessage) {
1106				bitmapWorkerTask.cancel(true);
1107			} else {
1108				return false;
1109			}
1110		}
1111		return true;
1112	}
1113
1114	private static BitmapWorkerTask getBitmapWorkerTask(ImageView imageView) {
1115		if (imageView != null) {
1116			final Drawable drawable = imageView.getDrawable();
1117			if (drawable instanceof AsyncDrawable) {
1118				final AsyncDrawable asyncDrawable = (AsyncDrawable) drawable;
1119				return asyncDrawable.getBitmapWorkerTask();
1120			}
1121		}
1122		return null;
1123	}
1124
1125	static class AsyncDrawable extends BitmapDrawable {
1126		private final WeakReference<BitmapWorkerTask> bitmapWorkerTaskReference;
1127
1128		public AsyncDrawable(Resources res, Bitmap bitmap,
1129				BitmapWorkerTask bitmapWorkerTask) {
1130			super(res, bitmap);
1131			bitmapWorkerTaskReference = new WeakReference<>(
1132					bitmapWorkerTask);
1133		}
1134
1135		public BitmapWorkerTask getBitmapWorkerTask() {
1136			return bitmapWorkerTaskReference.get();
1137		}
1138	}
1139}