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		return addFingerprintRowWithListeners(keys, account, fingerprint, highlight, trust, true,
 629				new CompoundButton.OnCheckedChangeListener() {
 630					@Override
 631					public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
 632						account.getAxolotlService().setFingerprintTrust(fingerprint,
 633								(isChecked) ? XmppAxolotlSession.Trust.TRUSTED :
 634										XmppAxolotlSession.Trust.UNTRUSTED);
 635					}
 636				},
 637				new View.OnClickListener() {
 638					@Override
 639					public void onClick(View v) {
 640						account.getAxolotlService().setFingerprintTrust(fingerprint,
 641								XmppAxolotlSession.Trust.UNTRUSTED);
 642						v.setEnabled(true);
 643					}
 644				}
 645
 646		);
 647	}
 648
 649	protected boolean addFingerprintRowWithListeners(LinearLayout keys, final Account account,
 650	                                                 final String fingerprint,
 651	                                                 boolean highlight,
 652	                                                 XmppAxolotlSession.Trust trust,
 653	                                                 boolean showTag,
 654	                                                 CompoundButton.OnCheckedChangeListener
 655			                                                 onCheckedChangeListener,
 656	                                                 View.OnClickListener onClickListener) {
 657		if (trust == XmppAxolotlSession.Trust.COMPROMISED) {
 658			return false;
 659		}
 660		View view = getLayoutInflater().inflate(R.layout.contact_key, keys, false);
 661		TextView key = (TextView) view.findViewById(R.id.key);
 662		TextView keyType = (TextView) view.findViewById(R.id.key_type);
 663		Switch trustToggle = (Switch) view.findViewById(R.id.tgl_trust);
 664		trustToggle.setVisibility(View.VISIBLE);
 665		trustToggle.setOnCheckedChangeListener(onCheckedChangeListener);
 666		trustToggle.setOnClickListener(onClickListener);
 667		view.setOnLongClickListener(new View.OnLongClickListener() {
 668			@Override
 669			public boolean onLongClick(View v) {
 670				showPurgeKeyDialog(account, fingerprint);
 671				return true;
 672			}
 673		});
 674
 675		switch (trust) {
 676			case UNTRUSTED:
 677			case TRUSTED:
 678				trustToggle.setChecked(trust == XmppAxolotlSession.Trust.TRUSTED, false);
 679				trustToggle.setEnabled(true);
 680				key.setTextColor(getPrimaryTextColor());
 681				keyType.setTextColor(getSecondaryTextColor());
 682				break;
 683			case UNDECIDED:
 684				trustToggle.setChecked(false, false);
 685				trustToggle.setEnabled(false);
 686				key.setTextColor(getPrimaryTextColor());
 687				keyType.setTextColor(getSecondaryTextColor());
 688				break;
 689			case INACTIVE_UNTRUSTED:
 690			case INACTIVE_UNDECIDED:
 691				trustToggle.setOnClickListener(null);
 692				trustToggle.setChecked(false, false);
 693				trustToggle.setEnabled(false);
 694				key.setTextColor(getTertiaryTextColor());
 695				keyType.setTextColor(getTertiaryTextColor());
 696				break;
 697			case INACTIVE_TRUSTED:
 698				trustToggle.setOnClickListener(null);
 699				trustToggle.setChecked(true, false);
 700				trustToggle.setEnabled(false);
 701				key.setTextColor(getTertiaryTextColor());
 702				keyType.setTextColor(getTertiaryTextColor());
 703				break;
 704		}
 705
 706		if (showTag) {
 707			keyType.setText(getString(R.string.omemo_fingerprint));
 708		} else {
 709			keyType.setVisibility(View.GONE);
 710		}
 711		if (highlight) {
 712			keyType.setTextColor(getResources().getColor(R.color.accent));
 713			keyType.setText(getString(R.string.omemo_fingerprint_selected_message));
 714		} else {
 715			keyType.setText(getString(R.string.omemo_fingerprint));
 716		}
 717
 718		key.setText(CryptoHelper.prettifyFingerprint(fingerprint));
 719		keys.addView(view);
 720		return true;
 721	}
 722
 723	public void showPurgeKeyDialog(final Account account, final String fingerprint) {
 724		Builder builder = new Builder(this);
 725		builder.setTitle(getString(R.string.purge_key));
 726		builder.setIconAttribute(android.R.attr.alertDialogIcon);
 727		builder.setMessage(getString(R.string.purge_key_desc_part1)
 728				+ "\n\n" + CryptoHelper.prettifyFingerprint(fingerprint)
 729				+ "\n\n" + getString(R.string.purge_key_desc_part2));
 730		builder.setNegativeButton(getString(R.string.cancel), null);
 731		builder.setPositiveButton(getString(R.string.accept),
 732				new DialogInterface.OnClickListener() {
 733					@Override
 734					public void onClick(DialogInterface dialog, int which) {
 735						account.getAxolotlService().purgeKey(fingerprint);
 736						refreshUi();
 737					}
 738				});
 739		builder.create().show();
 740	}
 741
 742	public void selectPresence(final Conversation conversation,
 743			final OnPresenceSelected listener) {
 744		final Contact contact = conversation.getContact();
 745		if (conversation.hasValidOtrSession()) {
 746			SessionID id = conversation.getOtrSession().getSessionID();
 747			Jid jid;
 748			try {
 749				jid = Jid.fromString(id.getAccountID() + "/" + id.getUserID());
 750			} catch (InvalidJidException e) {
 751				jid = null;
 752			}
 753			conversation.setNextCounterpart(jid);
 754			listener.onPresenceSelected();
 755		} else 	if (!contact.showInRoster()) {
 756			showAddToRosterDialog(conversation);
 757		} else {
 758			Presences presences = contact.getPresences();
 759			if (presences.size() == 0) {
 760				if (!contact.getOption(Contact.Options.TO)
 761						&& !contact.getOption(Contact.Options.ASKING)
 762						&& contact.getAccount().getStatus() == Account.State.ONLINE) {
 763					showAskForPresenceDialog(contact);
 764				} else if (!contact.getOption(Contact.Options.TO)
 765						|| !contact.getOption(Contact.Options.FROM)) {
 766					warnMutalPresenceSubscription(conversation, listener);
 767				} else {
 768					conversation.setNextCounterpart(null);
 769					listener.onPresenceSelected();
 770				}
 771			} else if (presences.size() == 1) {
 772				String presence = presences.asStringArray()[0];
 773				try {
 774					conversation.setNextCounterpart(Jid.fromParts(contact.getJid().getLocalpart(),contact.getJid().getDomainpart(),presence));
 775				} catch (InvalidJidException e) {
 776					conversation.setNextCounterpart(null);
 777				}
 778				listener.onPresenceSelected();
 779			} else {
 780				final StringBuilder presence = new StringBuilder();
 781				AlertDialog.Builder builder = new AlertDialog.Builder(this);
 782				builder.setTitle(getString(R.string.choose_presence));
 783				final String[] presencesArray = presences.asStringArray();
 784				int preselectedPresence = 0;
 785				for (int i = 0; i < presencesArray.length; ++i) {
 786					if (presencesArray[i].equals(contact.lastseen.presence)) {
 787						preselectedPresence = i;
 788						break;
 789					}
 790				}
 791				presence.append(presencesArray[preselectedPresence]);
 792				builder.setSingleChoiceItems(presencesArray,
 793						preselectedPresence,
 794						new DialogInterface.OnClickListener() {
 795
 796							@Override
 797							public void onClick(DialogInterface dialog,
 798									int which) {
 799								presence.delete(0, presence.length());
 800								presence.append(presencesArray[which]);
 801							}
 802						});
 803				builder.setNegativeButton(R.string.cancel, null);
 804				builder.setPositiveButton(R.string.ok, new OnClickListener() {
 805
 806					@Override
 807					public void onClick(DialogInterface dialog, int which) {
 808						try {
 809							conversation.setNextCounterpart(Jid.fromParts(contact.getJid().getLocalpart(),contact.getJid().getDomainpart(),presence.toString()));
 810						} catch (InvalidJidException e) {
 811							conversation.setNextCounterpart(null);
 812						}
 813						listener.onPresenceSelected();
 814					}
 815				});
 816				builder.create().show();
 817			}
 818		}
 819	}
 820
 821	protected void onActivityResult(int requestCode, int resultCode,
 822			final Intent data) {
 823		super.onActivityResult(requestCode, resultCode, data);
 824		if (requestCode == REQUEST_INVITE_TO_CONVERSATION && resultCode == RESULT_OK) {
 825			mPendingConferenceInvite = ConferenceInvite.parse(data);
 826			if (xmppConnectionServiceBound && mPendingConferenceInvite != null) {
 827				mPendingConferenceInvite.execute(this);
 828				mPendingConferenceInvite = null;
 829			}
 830		}
 831	}
 832
 833	private UiCallback<Conversation> adhocCallback = new UiCallback<Conversation>() {
 834		@Override
 835		public void success(final Conversation conversation) {
 836			switchToConversation(conversation);
 837			runOnUiThread(new Runnable() {
 838				@Override
 839				public void run() {
 840					Toast.makeText(XmppActivity.this,R.string.conference_created,Toast.LENGTH_LONG).show();
 841				}
 842			});
 843		}
 844
 845		@Override
 846		public void error(final int errorCode, Conversation object) {
 847			runOnUiThread(new Runnable() {
 848				@Override
 849				public void run() {
 850					Toast.makeText(XmppActivity.this,errorCode,Toast.LENGTH_LONG).show();
 851				}
 852			});
 853		}
 854
 855		@Override
 856		public void userInputRequried(PendingIntent pi, Conversation object) {
 857
 858		}
 859	};
 860
 861	public int getTertiaryTextColor() {
 862		return this.mTertiaryTextColor;
 863	}
 864
 865	public int getSecondaryTextColor() {
 866		return this.mSecondaryTextColor;
 867	}
 868
 869	public int getPrimaryTextColor() {
 870		return this.mPrimaryTextColor;
 871	}
 872
 873	public int getWarningTextColor() {
 874		return this.mColorRed;
 875	}
 876
 877	public int getOnlineColor() {
 878		return this.mColorGreen;
 879	}
 880
 881	public int getPrimaryBackgroundColor() {
 882		return this.mPrimaryBackgroundColor;
 883	}
 884
 885	public int getSecondaryBackgroundColor() {
 886		return this.mSecondaryBackgroundColor;
 887	}
 888
 889	public int getPixel(int dp) {
 890		DisplayMetrics metrics = getResources().getDisplayMetrics();
 891		return ((int) (dp * metrics.density));
 892	}
 893
 894	public boolean copyTextToClipboard(String text, int labelResId) {
 895		ClipboardManager mClipBoardManager = (ClipboardManager) getSystemService(CLIPBOARD_SERVICE);
 896		String label = getResources().getString(labelResId);
 897		if (mClipBoardManager != null) {
 898			ClipData mClipData = ClipData.newPlainText(label, text);
 899			mClipBoardManager.setPrimaryClip(mClipData);
 900			return true;
 901		}
 902		return false;
 903	}
 904
 905	protected void registerNdefPushMessageCallback() {
 906		NfcAdapter nfcAdapter = NfcAdapter.getDefaultAdapter(this);
 907		if (nfcAdapter != null && nfcAdapter.isEnabled()) {
 908			nfcAdapter.setNdefPushMessageCallback(new NfcAdapter.CreateNdefMessageCallback() {
 909				@Override
 910				public NdefMessage createNdefMessage(NfcEvent nfcEvent) {
 911					return new NdefMessage(new NdefRecord[]{
 912						NdefRecord.createUri(getShareableUri()),
 913							NdefRecord.createApplicationRecord("eu.siacs.conversations")
 914					});
 915				}
 916			}, this);
 917		}
 918	}
 919
 920	protected void unregisterNdefPushMessageCallback() {
 921		NfcAdapter nfcAdapter = NfcAdapter.getDefaultAdapter(this);
 922		if (nfcAdapter != null && nfcAdapter.isEnabled()) {
 923			nfcAdapter.setNdefPushMessageCallback(null,this);
 924		}
 925	}
 926
 927	protected String getShareableUri() {
 928		return null;
 929	}
 930
 931	@Override
 932	public void onResume() {
 933		super.onResume();
 934		if (this.getShareableUri()!=null) {
 935			this.registerNdefPushMessageCallback();
 936		}
 937	}
 938
 939	protected int findTheme() {
 940		if (getPreferences().getBoolean("use_larger_font", false)) {
 941			return R.style.ConversationsTheme_LargerText;
 942		} else {
 943			return R.style.ConversationsTheme;
 944		}
 945	}
 946
 947	@Override
 948	public void onPause() {
 949		super.onPause();
 950		this.unregisterNdefPushMessageCallback();
 951	}
 952
 953	protected void showQrCode() {
 954		String uri = getShareableUri();
 955		if (uri!=null) {
 956			Point size = new Point();
 957			getWindowManager().getDefaultDisplay().getSize(size);
 958			final int width = (size.x < size.y ? size.x : size.y);
 959			Bitmap bitmap = createQrCodeBitmap(uri, width);
 960			ImageView view = new ImageView(this);
 961			view.setImageBitmap(bitmap);
 962			AlertDialog.Builder builder = new AlertDialog.Builder(this);
 963			builder.setView(view);
 964			builder.create().show();
 965		}
 966	}
 967
 968	protected Bitmap createQrCodeBitmap(String input, int size) {
 969		Log.d(Config.LOGTAG,"qr code requested size: "+size);
 970		try {
 971			final QRCodeWriter QR_CODE_WRITER = new QRCodeWriter();
 972			final Hashtable<EncodeHintType, Object> hints = new Hashtable<>();
 973			hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.M);
 974			final BitMatrix result = QR_CODE_WRITER.encode(input, BarcodeFormat.QR_CODE, size, size, hints);
 975			final int width = result.getWidth();
 976			final int height = result.getHeight();
 977			final int[] pixels = new int[width * height];
 978			for (int y = 0; y < height; y++) {
 979				final int offset = y * width;
 980				for (int x = 0; x < width; x++) {
 981					pixels[offset + x] = result.get(x, y) ? Color.BLACK : Color.TRANSPARENT;
 982				}
 983			}
 984			final Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
 985			Log.d(Config.LOGTAG,"output size: "+width+"x"+height);
 986			bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
 987			return bitmap;
 988		} catch (final WriterException e) {
 989			return null;
 990		}
 991	}
 992
 993	public static class ConferenceInvite {
 994		private String uuid;
 995		private List<Jid> jids = new ArrayList<>();
 996
 997		public static ConferenceInvite parse(Intent data) {
 998			ConferenceInvite invite = new ConferenceInvite();
 999			invite.uuid = data.getStringExtra("conversation");
1000			if (invite.uuid == null) {
1001				return null;
1002			}
1003			try {
1004				if (data.getBooleanExtra("multiple", false)) {
1005					String[] toAdd = data.getStringArrayExtra("contacts");
1006					for (String item : toAdd) {
1007						invite.jids.add(Jid.fromString(item));
1008					}
1009				} else {
1010					invite.jids.add(Jid.fromString(data.getStringExtra("contact")));
1011				}
1012			} catch (final InvalidJidException ignored) {
1013				return null;
1014			}
1015			return invite;
1016		}
1017
1018		public void execute(XmppActivity activity) {
1019			XmppConnectionService service = activity.xmppConnectionService;
1020			Conversation conversation = service.findConversationByUuid(this.uuid);
1021			if (conversation == null) {
1022				return;
1023			}
1024			if (conversation.getMode() == Conversation.MODE_MULTI) {
1025				for (Jid jid : jids) {
1026					service.invite(conversation, jid);
1027				}
1028			} else {
1029				jids.add(conversation.getJid().toBareJid());
1030				service.createAdhocConference(conversation.getAccount(), jids, activity.adhocCallback);
1031			}
1032		}
1033	}
1034
1035	public AvatarService avatarService() {
1036		return xmppConnectionService.getAvatarService();
1037	}
1038
1039	class BitmapWorkerTask extends AsyncTask<Message, Void, Bitmap> {
1040		private final WeakReference<ImageView> imageViewReference;
1041		private Message message = null;
1042
1043		public BitmapWorkerTask(ImageView imageView) {
1044			imageViewReference = new WeakReference<>(imageView);
1045		}
1046
1047		@Override
1048		protected Bitmap doInBackground(Message... params) {
1049			message = params[0];
1050			try {
1051				return xmppConnectionService.getFileBackend().getThumbnail(
1052						message, (int) (metrics.density * 288), false);
1053			} catch (FileNotFoundException e) {
1054				return null;
1055			}
1056		}
1057
1058		@Override
1059		protected void onPostExecute(Bitmap bitmap) {
1060			if (bitmap != null) {
1061				final ImageView imageView = imageViewReference.get();
1062				if (imageView != null) {
1063					imageView.setImageBitmap(bitmap);
1064					imageView.setBackgroundColor(0x00000000);
1065				}
1066			}
1067		}
1068	}
1069
1070	public void loadBitmap(Message message, ImageView imageView) {
1071		Bitmap bm;
1072		try {
1073			bm = xmppConnectionService.getFileBackend().getThumbnail(message,
1074					(int) (metrics.density * 288), true);
1075		} catch (FileNotFoundException e) {
1076			bm = null;
1077		}
1078		if (bm != null) {
1079			imageView.setImageBitmap(bm);
1080			imageView.setBackgroundColor(0x00000000);
1081		} else {
1082			if (cancelPotentialWork(message, imageView)) {
1083				imageView.setBackgroundColor(0xff333333);
1084				final BitmapWorkerTask task = new BitmapWorkerTask(imageView);
1085				final AsyncDrawable asyncDrawable = new AsyncDrawable(
1086						getResources(), null, task);
1087				imageView.setImageDrawable(asyncDrawable);
1088				try {
1089					task.execute(message);
1090				} catch (final RejectedExecutionException ignored) {
1091				}
1092			}
1093		}
1094	}
1095
1096	public static boolean cancelPotentialWork(Message message,
1097			ImageView imageView) {
1098		final BitmapWorkerTask bitmapWorkerTask = getBitmapWorkerTask(imageView);
1099
1100		if (bitmapWorkerTask != null) {
1101			final Message oldMessage = bitmapWorkerTask.message;
1102			if (oldMessage == null || message != oldMessage) {
1103				bitmapWorkerTask.cancel(true);
1104			} else {
1105				return false;
1106			}
1107		}
1108		return true;
1109	}
1110
1111	private static BitmapWorkerTask getBitmapWorkerTask(ImageView imageView) {
1112		if (imageView != null) {
1113			final Drawable drawable = imageView.getDrawable();
1114			if (drawable instanceof AsyncDrawable) {
1115				final AsyncDrawable asyncDrawable = (AsyncDrawable) drawable;
1116				return asyncDrawable.getBitmapWorkerTask();
1117			}
1118		}
1119		return null;
1120	}
1121
1122	static class AsyncDrawable extends BitmapDrawable {
1123		private final WeakReference<BitmapWorkerTask> bitmapWorkerTaskReference;
1124
1125		public AsyncDrawable(Resources res, Bitmap bitmap,
1126				BitmapWorkerTask bitmapWorkerTask) {
1127			super(res, bitmap);
1128			bitmapWorkerTaskReference = new WeakReference<>(
1129					bitmapWorkerTask);
1130		}
1131
1132		public BitmapWorkerTask getBitmapWorkerTask() {
1133			return bitmapWorkerTaskReference.get();
1134		}
1135	}
1136}