1package eu.siacs.conversations.ui;
2
3import java.util.ArrayList;
4import java.util.List;
5import java.util.Set;
6
7import net.java.otr4j.session.SessionStatus;
8import eu.siacs.conversations.R;
9import eu.siacs.conversations.crypto.PgpEngine;
10import eu.siacs.conversations.entities.Account;
11import eu.siacs.conversations.entities.Contact;
12import eu.siacs.conversations.entities.Conversation;
13import eu.siacs.conversations.entities.Message;
14import eu.siacs.conversations.entities.MucOptions;
15import eu.siacs.conversations.services.XmppConnectionService;
16import eu.siacs.conversations.ui.EditMessage.OnEnterPressed;
17import eu.siacs.conversations.ui.XmppActivity.OnPresenceSelected;
18import eu.siacs.conversations.ui.adapter.MessageAdapter;
19import eu.siacs.conversations.ui.adapter.MessageAdapter.OnContactPictureClicked;
20import eu.siacs.conversations.ui.adapter.MessageAdapter.OnContactPictureLongClicked;
21import eu.siacs.conversations.utils.UIHelper;
22import android.app.AlertDialog;
23import android.app.Fragment;
24import android.app.PendingIntent;
25import android.content.Context;
26import android.content.DialogInterface;
27import android.content.Intent;
28import android.content.IntentSender;
29import android.content.SharedPreferences;
30import android.content.IntentSender.SendIntentException;
31import android.os.Bundle;
32import android.preference.PreferenceManager;
33import android.text.Editable;
34import android.text.Selection;
35import android.view.Gravity;
36import android.view.KeyEvent;
37import android.view.LayoutInflater;
38import android.view.View;
39import android.view.View.OnClickListener;
40import android.view.ViewGroup;
41import android.view.inputmethod.EditorInfo;
42import android.view.inputmethod.InputMethodManager;
43import android.widget.AbsListView.OnScrollListener;
44import android.widget.TextView.OnEditorActionListener;
45import android.widget.AbsListView;
46
47import android.widget.ListView;
48import android.widget.ImageButton;
49import android.widget.RelativeLayout;
50import android.widget.TextView;
51import android.widget.Toast;
52
53public class ConversationFragment extends Fragment {
54
55 protected Conversation conversation;
56 protected ListView messagesView;
57 protected LayoutInflater inflater;
58 protected List<Message> messageList = new ArrayList<Message>();
59 protected MessageAdapter messageListAdapter;
60 protected Contact contact;
61
62 protected String queuedPqpMessage = null;
63
64 private EditMessage mEditMessage;
65 private String pastedText = null;
66 private RelativeLayout snackbar;
67 private TextView snackbarMessage;
68 private TextView snackbarAction;
69
70 private boolean useSubject = true;
71 private boolean messagesLoaded = false;
72
73 private IntentSender askForPassphraseIntent = null;
74
75 private OnEditorActionListener mEditorActionListener = new OnEditorActionListener() {
76
77 @Override
78 public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
79 if (actionId == EditorInfo.IME_ACTION_DONE) {
80 InputMethodManager imm = (InputMethodManager) v.getContext()
81 .getSystemService(Context.INPUT_METHOD_SERVICE);
82 imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
83 return true;
84 } else {
85 return false;
86 }
87 }
88 };
89
90 private OnClickListener mSendButtonListener = new OnClickListener() {
91
92 @Override
93 public void onClick(View v) {
94 sendMessage();
95 }
96 };
97 protected OnClickListener clickToDecryptListener = new OnClickListener() {
98
99 @Override
100 public void onClick(View v) {
101 if (activity.hasPgp() && askForPassphraseIntent != null) {
102 try {
103 getActivity().startIntentSenderForResult(
104 askForPassphraseIntent,
105 ConversationActivity.REQUEST_DECRYPT_PGP, null, 0,
106 0, 0);
107 } catch (SendIntentException e) {
108 //
109 }
110 }
111 }
112 };
113
114 private OnClickListener clickToMuc = new OnClickListener() {
115
116 @Override
117 public void onClick(View v) {
118 Intent intent = new Intent(getActivity(),
119 ConferenceDetailsActivity.class);
120 intent.setAction(ConferenceDetailsActivity.ACTION_VIEW_MUC);
121 intent.putExtra("uuid", conversation.getUuid());
122 startActivity(intent);
123 }
124 };
125
126 private OnClickListener leaveMuc = new OnClickListener() {
127
128 @Override
129 public void onClick(View v) {
130 activity.endConversation(conversation);
131 }
132 };
133
134 private OnScrollListener mOnScrollListener = new OnScrollListener() {
135
136 @Override
137 public void onScrollStateChanged(AbsListView view, int scrollState) {
138 // TODO Auto-generated method stub
139
140 }
141
142 @Override
143 public void onScroll(AbsListView view, int firstVisibleItem,
144 int visibleItemCount, int totalItemCount) {
145 if (firstVisibleItem == 0 && messagesLoaded) {
146 long timestamp = messageList.get(0).getTimeSent();
147 messagesLoaded = false;
148 List<Message> messages = activity.xmppConnectionService
149 .getMoreMessages(conversation, timestamp);
150 messageList.addAll(0, messages);
151 messageListAdapter.notifyDataSetChanged();
152 if (messages.size() != 0) {
153 messagesLoaded = true;
154 }
155 messagesView.setSelectionFromTop(messages.size() + 1, 0);
156 }
157 }
158 };
159
160 private ConversationActivity activity;
161
162 private void sendMessage() {
163 if (mEditMessage.getText().length() < 1) {
164 if (this.conversation.getMode() == Conversation.MODE_MULTI) {
165 conversation.setNextPresence(null);
166 updateChatMsgHint();
167 }
168 return;
169 }
170 Message message = new Message(conversation, mEditMessage.getText()
171 .toString(), conversation.getNextEncryption());
172 if (conversation.getMode() == Conversation.MODE_MULTI) {
173 if (conversation.getNextPresence() != null) {
174 message.setPresence(conversation.getNextPresence());
175 message.setType(Message.TYPE_PRIVATE);
176 conversation.setNextPresence(null);
177 }
178 }
179 if (conversation.getNextEncryption() == Message.ENCRYPTION_OTR) {
180 sendOtrMessage(message);
181 } else if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
182 sendPgpMessage(message);
183 } else {
184 sendPlainTextMessage(message);
185 }
186 }
187
188 public void updateChatMsgHint() {
189 if (conversation.getMode() == Conversation.MODE_MULTI
190 && conversation.getNextPresence() != null) {
191 this.mEditMessage.setHint(getString(
192 R.string.send_private_message_to,
193 conversation.getNextPresence()));
194 } else {
195 switch (conversation.getNextEncryption()) {
196 case Message.ENCRYPTION_NONE:
197 mEditMessage
198 .setHint(getString(R.string.send_plain_text_message));
199 break;
200 case Message.ENCRYPTION_OTR:
201 mEditMessage.setHint(getString(R.string.send_otr_message));
202 break;
203 case Message.ENCRYPTION_PGP:
204 mEditMessage.setHint(getString(R.string.send_pgp_message));
205 break;
206 default:
207 break;
208 }
209 }
210 }
211
212 @Override
213 public View onCreateView(final LayoutInflater inflater,
214 ViewGroup container, Bundle savedInstanceState) {
215 final View view = inflater.inflate(R.layout.fragment_conversation,
216 container, false);
217 mEditMessage = (EditMessage) view.findViewById(R.id.textinput);
218 mEditMessage.setOnClickListener(new OnClickListener() {
219
220 @Override
221 public void onClick(View v) {
222 if (activity.getSlidingPaneLayout().isSlideable()) {
223 activity.getSlidingPaneLayout().closePane();
224 }
225 }
226 });
227 mEditMessage.setOnEditorActionListener(mEditorActionListener);
228 mEditMessage.setOnEnterPressedListener(new OnEnterPressed() {
229
230 @Override
231 public void onEnterPressed() {
232 sendMessage();
233 }
234 });
235
236 ImageButton sendButton = (ImageButton) view
237 .findViewById(R.id.textSendButton);
238 sendButton.setOnClickListener(this.mSendButtonListener);
239
240 snackbar = (RelativeLayout) view.findViewById(R.id.snackbar);
241 snackbarMessage = (TextView) view.findViewById(R.id.snackbar_message);
242 snackbarAction = (TextView) view.findViewById(R.id.snackbar_action);
243
244 messagesView = (ListView) view.findViewById(R.id.messages_view);
245 messagesView.setOnScrollListener(mOnScrollListener);
246 messagesView.setTranscriptMode(ListView.TRANSCRIPT_MODE_NORMAL);
247 messageListAdapter = new MessageAdapter(
248 (ConversationActivity) getActivity(), this.messageList);
249 messageListAdapter
250 .setOnContactPictureClicked(new OnContactPictureClicked() {
251
252 @Override
253 public void onContactPictureClicked(Message message) {
254 if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
255 if (message.getPresence() != null) {
256 highlightInConference(message.getPresence());
257 } else {
258 highlightInConference(message.getCounterpart());
259 }
260 }
261 }
262 });
263 messageListAdapter
264 .setOnContactPictureLongClicked(new OnContactPictureLongClicked() {
265
266 @Override
267 public void onContactPictureLongClicked(Message message) {
268 if (message.getConversation().getMode() == Conversation.MODE_MULTI) {
269 if (message.getPresence() != null) {
270 privateMessageWith(message.getPresence());
271 } else {
272 privateMessageWith(message.getCounterpart());
273 }
274 }
275 }
276 });
277 messagesView.setAdapter(messageListAdapter);
278
279 return view;
280 }
281
282 protected void privateMessageWith(String counterpart) {
283 this.mEditMessage.setText("");
284 this.conversation.setNextPresence(counterpart);
285 updateChatMsgHint();
286 }
287
288 protected void highlightInConference(String nick) {
289 String oldString = mEditMessage.getText().toString().trim();
290 if (oldString.isEmpty() || mEditMessage.getSelectionStart() == 0) {
291 mEditMessage.getText().insert(0, nick + ": ");
292 } else {
293 mEditMessage.getText().insert(mEditMessage.getSelectionStart(), nick + " ");
294 }
295 }
296
297 @Override
298 public void onStart() {
299 super.onStart();
300 this.activity = (ConversationActivity) getActivity();
301 SharedPreferences preferences = PreferenceManager
302 .getDefaultSharedPreferences(activity);
303 this.useSubject = preferences.getBoolean("use_subject_in_muc", true);
304 if (activity.xmppConnectionServiceBound) {
305 this.onBackendConnected();
306 }
307 }
308
309 @Override
310 public void onStop() {
311 super.onStop();
312 if (this.conversation != null) {
313 this.conversation.setNextMessage(mEditMessage.getText().toString());
314 }
315 }
316
317 public void onBackendConnected() {
318 this.activity = (ConversationActivity) getActivity();
319 this.conversation = activity.getSelectedConversation();
320 if (this.conversation == null) {
321 return;
322 }
323 String oldString = conversation.getNextMessage().trim();
324 if (this.pastedText == null) {
325 this.mEditMessage.setText(oldString);
326 } else {
327
328 if (oldString.isEmpty()) {
329 mEditMessage.setText(pastedText);
330 } else {
331 mEditMessage.setText(oldString + " " + pastedText);
332 }
333 pastedText = null;
334 }
335 int position = mEditMessage.length();
336 Editable etext = mEditMessage.getText();
337 Selection.setSelection(etext, position);
338 if (activity.getSlidingPaneLayout().isSlideable()) {
339 if (!activity.shouldPaneBeOpen()) {
340 activity.getSlidingPaneLayout().closePane();
341 activity.getActionBar().setDisplayHomeAsUpEnabled(true);
342 activity.getActionBar().setHomeButtonEnabled(true);
343 activity.getActionBar().setTitle(
344 conversation.getName(useSubject));
345 activity.invalidateOptionsMenu();
346 }
347 }
348 if (this.conversation.getMode() == Conversation.MODE_MULTI) {
349 conversation.setNextPresence(null);
350 }
351 updateMessages();
352 }
353
354 private void decryptMessage(Message message) {
355 PgpEngine engine = activity.xmppConnectionService.getPgpEngine();
356 if (engine != null) {
357 engine.decrypt(message, new UiCallback<Message>() {
358
359 @Override
360 public void userInputRequried(PendingIntent pi, Message message) {
361 askForPassphraseIntent = pi.getIntentSender();
362 showSnackbar(R.string.openpgp_messages_found,
363 R.string.decrypt, clickToDecryptListener);
364 }
365
366 @Override
367 public void success(Message message) {
368 activity.xmppConnectionService.databaseBackend
369 .updateMessage(message);
370 updateMessages();
371 }
372
373 @Override
374 public void error(int error, Message message) {
375 message.setEncryption(Message.ENCRYPTION_DECRYPTION_FAILED);
376 // updateMessages();
377 }
378 });
379 }
380 }
381
382 public void updateMessages() {
383 if (getView() == null) {
384 return;
385 }
386 hideSnackbar();
387 final ConversationActivity activity = (ConversationActivity) getActivity();
388 if (this.conversation != null) {
389 final Contact contact = this.conversation.getContact();
390 if (!contact.showInRoster()
391 && contact
392 .getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
393 showSnackbar(R.string.contact_added_you, R.string.add_back,
394 new OnClickListener() {
395
396 @Override
397 public void onClick(View v) {
398 activity.xmppConnectionService
399 .createContact(contact);
400 activity.switchToContactDetails(contact);
401 }
402 });
403 }
404 for (Message message : this.conversation.getMessages()) {
405 if ((message.getEncryption() == Message.ENCRYPTION_PGP)
406 && ((message.getStatus() == Message.STATUS_RECEIVED) || (message
407 .getStatus() == Message.STATUS_SEND))) {
408 decryptMessage(message);
409 break;
410 }
411 }
412 if (this.conversation.getMessages().size() == 0) {
413 this.messageList.clear();
414 messagesLoaded = false;
415 } else {
416 for (Message message : this.conversation.getMessages()) {
417 if (!this.messageList.contains(message)) {
418 this.messageList.add(message);
419 }
420 }
421 messagesLoaded = true;
422 updateStatusMessages();
423 }
424 this.messageListAdapter.notifyDataSetChanged();
425 if (conversation.getMode() == Conversation.MODE_SINGLE) {
426 if (messageList.size() >= 1) {
427 makeFingerprintWarning(conversation.getLatestEncryption());
428 }
429 } else {
430 if (!conversation.getMucOptions().online()
431 && conversation.getAccount().getStatus() == Account.STATUS_ONLINE) {
432 if (conversation.getMucOptions().getError() == MucOptions.ERROR_NICK_IN_USE) {
433 showSnackbar(R.string.nick_in_use, R.string.edit,
434 clickToMuc);
435 } else if (conversation.getMucOptions().getError() == MucOptions.ERROR_ROOM_NOT_FOUND) {
436 showSnackbar(R.string.conference_not_found,
437 R.string.leave, leaveMuc);
438 }
439 }
440 }
441 getActivity().invalidateOptionsMenu();
442 updateChatMsgHint();
443 if (!activity.shouldPaneBeOpen()) {
444 activity.xmppConnectionService.markRead(conversation);
445 // TODO update notifications
446 UIHelper.updateNotification(getActivity(),
447 activity.getConversationList(), null, false);
448 activity.updateConversationList();
449 }
450 }
451 }
452
453 private void messageSent() {
454 int size = this.messageList.size();
455 if (size >= 1) {
456 messagesView.setSelection(size - 1);
457 }
458 mEditMessage.setText("");
459 updateChatMsgHint();
460 }
461
462 protected void updateStatusMessages() {
463 boolean addedStatusMsg = false;
464 if (conversation.getMode() == Conversation.MODE_SINGLE) {
465 for (int i = this.messageList.size() - 1; i >= 0; --i) {
466 if (addedStatusMsg) {
467 if (this.messageList.get(i).getType() == Message.TYPE_STATUS) {
468 this.messageList.remove(i);
469 --i;
470 }
471 } else {
472 if (this.messageList.get(i).getStatus() == Message.STATUS_RECEIVED) {
473 addedStatusMsg = true;
474 } else {
475 if (this.messageList.get(i).getStatus() == Message.STATUS_SEND_DISPLAYED) {
476 this.messageList.add(i + 1,
477 Message.createStatusMessage(conversation));
478 addedStatusMsg = true;
479 }
480 }
481 }
482 }
483 }
484 }
485
486 protected void makeFingerprintWarning(int latestEncryption) {
487 Set<String> knownFingerprints = conversation.getContact()
488 .getOtrFingerprints();
489 if ((latestEncryption == Message.ENCRYPTION_OTR)
490 && (conversation.hasValidOtrSession()
491 && (conversation.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) && (!knownFingerprints
492 .contains(conversation.getOtrFingerprint())))) {
493 showSnackbar(R.string.unknown_otr_fingerprint, R.string.verify,
494 new OnClickListener() {
495
496 @Override
497 public void onClick(View v) {
498 if (conversation.getOtrFingerprint() != null) {
499 AlertDialog dialog = UIHelper
500 .getVerifyFingerprintDialog(
501 (ConversationActivity) getActivity(),
502 conversation, snackbar);
503 dialog.show();
504 }
505 }
506 });
507 }
508 }
509
510 protected void showSnackbar(int message, int action,
511 OnClickListener clickListener) {
512 snackbar.setVisibility(View.VISIBLE);
513 snackbar.setOnClickListener(null);
514 snackbarMessage.setText(message);
515 snackbarMessage.setOnClickListener(null);
516 snackbarAction.setText(action);
517 snackbarAction.setOnClickListener(clickListener);
518 }
519
520 protected void hideSnackbar() {
521 snackbar.setVisibility(View.GONE);
522 }
523
524 protected void sendPlainTextMessage(Message message) {
525 ConversationActivity activity = (ConversationActivity) getActivity();
526 activity.xmppConnectionService.sendMessage(message);
527 messageSent();
528 }
529
530 protected void sendPgpMessage(final Message message) {
531 final ConversationActivity activity = (ConversationActivity) getActivity();
532 final XmppConnectionService xmppService = activity.xmppConnectionService;
533 final Contact contact = message.getConversation().getContact();
534 if (activity.hasPgp()) {
535 if (conversation.getMode() == Conversation.MODE_SINGLE) {
536 if (contact.getPgpKeyId() != 0) {
537 xmppService.getPgpEngine().hasKey(contact,
538 new UiCallback<Contact>() {
539
540 @Override
541 public void userInputRequried(PendingIntent pi,
542 Contact contact) {
543 activity.runIntent(
544 pi,
545 ConversationActivity.REQUEST_ENCRYPT_MESSAGE);
546 }
547
548 @Override
549 public void success(Contact contact) {
550 messageSent();
551 activity.encryptTextMessage(message);
552 }
553
554 @Override
555 public void error(int error, Contact contact) {
556
557 }
558 });
559
560 } else {
561 showNoPGPKeyDialog(false,
562 new DialogInterface.OnClickListener() {
563
564 @Override
565 public void onClick(DialogInterface dialog,
566 int which) {
567 conversation
568 .setNextEncryption(Message.ENCRYPTION_NONE);
569 message.setEncryption(Message.ENCRYPTION_NONE);
570 xmppService.sendMessage(message);
571 messageSent();
572 }
573 });
574 }
575 } else {
576 if (conversation.getMucOptions().pgpKeysInUse()) {
577 if (!conversation.getMucOptions().everybodyHasKeys()) {
578 Toast warning = Toast
579 .makeText(getActivity(),
580 R.string.missing_public_keys,
581 Toast.LENGTH_LONG);
582 warning.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
583 warning.show();
584 }
585 activity.encryptTextMessage(message);
586 messageSent();
587 } else {
588 showNoPGPKeyDialog(true,
589 new DialogInterface.OnClickListener() {
590
591 @Override
592 public void onClick(DialogInterface dialog,
593 int which) {
594 conversation
595 .setNextEncryption(Message.ENCRYPTION_NONE);
596 message.setEncryption(Message.ENCRYPTION_NONE);
597 xmppService.sendMessage(message);
598 messageSent();
599 }
600 });
601 }
602 }
603 } else {
604 activity.showInstallPgpDialog();
605 }
606 }
607
608 public void showNoPGPKeyDialog(boolean plural,
609 DialogInterface.OnClickListener listener) {
610 AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
611 builder.setIconAttribute(android.R.attr.alertDialogIcon);
612 if (plural) {
613 builder.setTitle(getString(R.string.no_pgp_keys));
614 builder.setMessage(getText(R.string.contacts_have_no_pgp_keys));
615 } else {
616 builder.setTitle(getString(R.string.no_pgp_key));
617 builder.setMessage(getText(R.string.contact_has_no_pgp_key));
618 }
619 builder.setNegativeButton(getString(R.string.cancel), null);
620 builder.setPositiveButton(getString(R.string.send_unencrypted),
621 listener);
622 builder.create().show();
623 }
624
625 protected void sendOtrMessage(final Message message) {
626 final ConversationActivity activity = (ConversationActivity) getActivity();
627 final XmppConnectionService xmppService = activity.xmppConnectionService;
628 if (conversation.hasValidOtrSession()) {
629 activity.xmppConnectionService.sendMessage(message);
630 messageSent();
631 } else {
632 activity.selectPresence(message.getConversation(),
633 new OnPresenceSelected() {
634
635 @Override
636 public void onPresenceSelected() {
637 message.setPresence(conversation.getNextPresence());
638 xmppService.sendMessage(message);
639 messageSent();
640 }
641 });
642 }
643 }
644
645 public void setText(String text) {
646 this.pastedText = text;
647 }
648
649 public void clearInputField() {
650 this.mEditMessage.setText("");
651 }
652}