1package eu.siacs.conversations.ui;
2
3import java.util.ArrayList;
4import java.util.HashMap;
5import java.util.Hashtable;
6import java.util.LinkedList;
7import java.util.List;
8import java.util.Set;
9
10import net.java.otr4j.session.SessionStatus;
11
12import eu.siacs.conversations.R;
13import eu.siacs.conversations.crypto.PgpEngine.OpenPgpException;
14import eu.siacs.conversations.crypto.PgpEngine.UserInputRequiredException;
15import eu.siacs.conversations.entities.Contact;
16import eu.siacs.conversations.entities.Conversation;
17import eu.siacs.conversations.entities.Message;
18import eu.siacs.conversations.entities.MucOptions;
19import eu.siacs.conversations.entities.MucOptions.OnRenameListener;
20import eu.siacs.conversations.services.XmppConnectionService;
21import eu.siacs.conversations.utils.UIHelper;
22import android.app.AlertDialog;
23import android.app.Fragment;
24import android.content.Context;
25import android.content.DialogInterface;
26import android.content.Intent;
27import android.content.IntentSender;
28import android.content.SharedPreferences;
29import android.content.IntentSender.SendIntentException;
30import android.graphics.Bitmap;
31import android.graphics.Typeface;
32import android.os.AsyncTask;
33import android.os.Bundle;
34import android.preference.PreferenceManager;
35import android.util.Log;
36import android.view.LayoutInflater;
37import android.view.View;
38import android.view.View.OnClickListener;
39import android.view.ViewGroup;
40import android.widget.ArrayAdapter;
41import android.widget.EditText;
42import android.widget.LinearLayout;
43import android.widget.ListView;
44import android.widget.ImageButton;
45import android.widget.ImageView;
46import android.widget.TextView;
47import android.widget.Toast;
48
49public class ConversationFragment extends Fragment {
50
51 protected Conversation conversation;
52 protected ListView messagesView;
53 protected LayoutInflater inflater;
54 protected List<Message> messageList = new ArrayList<Message>();
55 protected ArrayAdapter<Message> messageListAdapter;
56 protected Contact contact;
57 protected BitmapCache mBitmapCache = new BitmapCache();
58
59 protected String queuedPqpMessage = null;
60
61 private EditText chatMsg;
62 private String pastedText = null;
63
64 protected Bitmap selfBitmap;
65
66 private boolean useSubject = true;
67
68 private IntentSender askForPassphraseIntent = null;
69
70 private OnClickListener sendMsgListener = new OnClickListener() {
71
72 @Override
73 public void onClick(View v) {
74 if (chatMsg.getText().length() < 1)
75 return;
76 Message message = new Message(conversation, chatMsg.getText()
77 .toString(), conversation.nextMessageEncryption);
78 if (conversation.nextMessageEncryption == Message.ENCRYPTION_OTR) {
79 sendOtrMessage(message);
80 } else if (conversation.nextMessageEncryption == Message.ENCRYPTION_PGP) {
81 sendPgpMessage(message);
82 } else {
83 sendPlainTextMessage(message);
84 }
85 }
86 };
87 protected OnClickListener clickToDecryptListener = new OnClickListener() {
88
89 @Override
90 public void onClick(View v) {
91 Log.d("gultsch", "clicked to decrypt");
92 if (askForPassphraseIntent != null) {
93 try {
94 getActivity().startIntentSenderForResult(
95 askForPassphraseIntent,
96 ConversationActivity.REQUEST_DECRYPT_PGP, null, 0,
97 0, 0);
98 } catch (SendIntentException e) {
99 Log.d("gultsch", "couldnt fire intent");
100 }
101 }
102 }
103 };
104
105 private LinearLayout pgpInfo;
106 private LinearLayout mucError;
107 private TextView mucErrorText;
108 private OnClickListener clickToMuc = new OnClickListener() {
109
110 @Override
111 public void onClick(View v) {
112 Intent intent = new Intent(getActivity(), MucDetailsActivity.class);
113 intent.setAction(MucDetailsActivity.ACTION_VIEW_MUC);
114 intent.putExtra("uuid", conversation.getUuid());
115 startActivity(intent);
116 }
117 };
118
119 public void hidePgpPassphraseBox() {
120 pgpInfo.setVisibility(View.GONE);
121 }
122
123 public void updateChatMsgHint() {
124 if (conversation.getMode() == Conversation.MODE_MULTI) {
125 chatMsg.setHint("Send message to conference");
126 } else {
127 switch (conversation.nextMessageEncryption) {
128 case Message.ENCRYPTION_NONE:
129 chatMsg.setHint("Send plain text message");
130 break;
131 case Message.ENCRYPTION_OTR:
132 chatMsg.setHint("Send OTR encrypted message");
133 break;
134 case Message.ENCRYPTION_PGP:
135 chatMsg.setHint("Send openPGP encryted messeage");
136 break;
137 case Message.ENCRYPTION_DECRYPTED:
138 chatMsg.setHint("Send openPGP encryted messeage");
139 break;
140 default:
141 break;
142 }
143 }
144 }
145
146 @Override
147 public View onCreateView(final LayoutInflater inflater,
148 ViewGroup container, Bundle savedInstanceState) {
149
150 this.inflater = inflater;
151
152 final View view = inflater.inflate(R.layout.fragment_conversation,
153 container, false);
154 chatMsg = (EditText) view.findViewById(R.id.textinput);
155
156 if (pastedText!=null) {
157 chatMsg.setText(pastedText);
158 }
159
160 ImageButton sendButton = (ImageButton) view
161 .findViewById(R.id.textSendButton);
162 sendButton.setOnClickListener(this.sendMsgListener);
163
164 pgpInfo = (LinearLayout) view.findViewById(R.id.pgp_keyentry);
165 pgpInfo.setOnClickListener(clickToDecryptListener);
166 mucError = (LinearLayout) view.findViewById(R.id.muc_error);
167 mucError.setOnClickListener(clickToMuc);
168 mucErrorText = (TextView) view.findViewById(R.id.muc_error_msg);
169
170 messagesView = (ListView) view.findViewById(R.id.messages_view);
171
172 messageListAdapter = new ArrayAdapter<Message>(this.getActivity()
173 .getApplicationContext(), R.layout.message_sent,
174 this.messageList) {
175
176 private static final int SENT = 0;
177 private static final int RECIEVED = 1;
178 private static final int ERROR = 2;
179
180 @Override
181 public int getViewTypeCount() {
182 return 3;
183 }
184
185 @Override
186 public int getItemViewType(int position) {
187 if (getItem(position).getStatus() == Message.STATUS_RECIEVED) {
188 return RECIEVED;
189 } else if (getItem(position).getStatus() == Message.STATUS_ERROR) {
190 return ERROR;
191 } else {
192 return SENT;
193 }
194 }
195
196 @Override
197 public View getView(int position, View view, ViewGroup parent) {
198 Message item = getItem(position);
199 int type = getItemViewType(position);
200 ViewHolder viewHolder;
201 if (view == null) {
202 viewHolder = new ViewHolder();
203 switch (type) {
204 case SENT:
205 view = (View) inflater.inflate(R.layout.message_sent,
206 null);
207 viewHolder.imageView = (ImageView) view
208 .findViewById(R.id.message_photo);
209 viewHolder.imageView.setImageBitmap(selfBitmap);
210 break;
211 case RECIEVED:
212 view = (View) inflater.inflate(
213 R.layout.message_recieved, null);
214 viewHolder.imageView = (ImageView) view
215 .findViewById(R.id.message_photo);
216 if (item.getConversation().getMode() == Conversation.MODE_SINGLE) {
217
218 viewHolder.imageView.setImageBitmap(mBitmapCache
219 .get(item.getConversation().getName(useSubject), item
220 .getConversation().getContact(),
221 getActivity()
222 .getApplicationContext()));
223
224 }
225 break;
226 case ERROR:
227 view = (View) inflater.inflate(R.layout.message_error,
228 null);
229 viewHolder.imageView = (ImageView) view
230 .findViewById(R.id.message_photo);
231 viewHolder.imageView.setImageBitmap(mBitmapCache
232 .getError());
233 break;
234 default:
235 viewHolder = null;
236 break;
237 }
238 viewHolder.messageBody = (TextView) view
239 .findViewById(R.id.message_body);
240 viewHolder.time = (TextView) view
241 .findViewById(R.id.message_time);
242 viewHolder.indicator = (ImageView) view.findViewById(R.id.security_indicator);
243 view.setTag(viewHolder);
244 } else {
245 viewHolder = (ViewHolder) view.getTag();
246 }
247 if (type == RECIEVED) {
248 if (item.getConversation().getMode() == Conversation.MODE_MULTI) {
249 if (item.getCounterpart() != null) {
250 viewHolder.imageView.setImageBitmap(mBitmapCache
251 .get(item.getCounterpart(), null,
252 getActivity()
253 .getApplicationContext()));
254 } else {
255 viewHolder.imageView.setImageBitmap(mBitmapCache
256 .get(item.getConversation().getName(useSubject),
257 null, getActivity()
258 .getApplicationContext()));
259 }
260 }
261 }
262 String body = item.getBody();
263 if (body != null) {
264 if (item.getEncryption() == Message.ENCRYPTION_PGP) {
265 viewHolder.messageBody
266 .setText(getString(R.string.encrypted_message));
267 viewHolder.messageBody.setTextColor(0xff33B5E5);
268 viewHolder.messageBody.setTypeface(null,
269 Typeface.ITALIC);
270 viewHolder.indicator.setVisibility(View.VISIBLE);
271 } else if ((item.getEncryption() == Message.ENCRYPTION_OTR)||(item.getEncryption() == Message.ENCRYPTION_DECRYPTED)) {
272 viewHolder.messageBody.setText(body.trim());
273 viewHolder.messageBody.setTextColor(0xff000000);
274 viewHolder.messageBody.setTypeface(null,
275 Typeface.NORMAL);
276 viewHolder.indicator.setVisibility(View.VISIBLE);
277 } else {
278 viewHolder.messageBody.setText(body.trim());
279 viewHolder.messageBody.setTextColor(0xff000000);
280 viewHolder.messageBody.setTypeface(null,
281 Typeface.NORMAL);
282 viewHolder.indicator.setVisibility(View.GONE);
283 }
284 } else {
285 viewHolder.indicator.setVisibility(View.GONE);
286 }
287 if (item.getStatus() == Message.STATUS_UNSEND) {
288 viewHolder.time.setTypeface(null, Typeface.ITALIC);
289 viewHolder.time.setText("sending\u2026");
290 } else {
291 viewHolder.time.setTypeface(null, Typeface.NORMAL);
292 if ((item.getConversation().getMode() == Conversation.MODE_SINGLE)
293 || (type != RECIEVED)) {
294 viewHolder.time.setText(UIHelper
295 .readableTimeDifference(item.getTimeSent()));
296 } else {
297 viewHolder.time.setText(item.getCounterpart()
298 + " \u00B7 "
299 + UIHelper.readableTimeDifference(item
300 .getTimeSent()));
301 }
302 }
303 return view;
304 }
305 };
306 messagesView.setAdapter(messageListAdapter);
307
308 return view;
309 }
310
311 protected Bitmap findSelfPicture() {
312 SharedPreferences sharedPref = PreferenceManager
313 .getDefaultSharedPreferences(getActivity()
314 .getApplicationContext());
315 boolean showPhoneSelfContactPicture = sharedPref.getBoolean(
316 "show_phone_selfcontact_picture", true);
317
318 return UIHelper.getSelfContactPicture(conversation.getAccount(), 200,
319 showPhoneSelfContactPicture, getActivity());
320 }
321
322 @Override
323 public void onStart() {
324 super.onStart();
325 ConversationActivity activity = (ConversationActivity) getActivity();
326
327 if (activity.xmppConnectionServiceBound) {
328 this.onBackendConnected();
329 }
330 }
331
332 public void onBackendConnected() {
333 final ConversationActivity activity = (ConversationActivity) getActivity();
334 activity.registerListener();
335 this.conversation = activity.getSelectedConversation();
336 if (this.conversation == null) {
337 return;
338 }
339 this.selfBitmap = findSelfPicture();
340 updateMessages();
341 // rendering complete. now go tell activity to close pane
342 if (activity.getSlidingPaneLayout().isSlideable()) {
343 if (!activity.shouldPaneBeOpen()) {
344 activity.getSlidingPaneLayout().closePane();
345 activity.getActionBar().setDisplayHomeAsUpEnabled(true);
346 activity.getActionBar().setTitle(conversation.getName(useSubject));
347 activity.invalidateOptionsMenu();
348
349 }
350 }
351 if (queuedPqpMessage != null) {
352 this.conversation.nextMessageEncryption = Message.ENCRYPTION_PGP;
353 Message message = new Message(conversation, queuedPqpMessage,
354 Message.ENCRYPTION_PGP);
355 sendPgpMessage(message);
356 }
357 if (conversation.getMode() == Conversation.MODE_MULTI) {
358 activity.xmppConnectionService
359 .setOnRenameListener(new OnRenameListener() {
360
361 @Override
362 public void onRename(final boolean success) {
363 activity.xmppConnectionService.updateConversation(conversation);
364 getActivity().runOnUiThread(new Runnable() {
365
366 @Override
367 public void run() {
368 if (success) {
369 Toast.makeText(
370 getActivity(),
371 "Your nickname has been changed",
372 Toast.LENGTH_SHORT).show();
373 } else {
374 Toast.makeText(getActivity(),
375 "Nichname is already in use",
376 Toast.LENGTH_SHORT).show();
377 }
378 }
379 });
380 }
381 });
382 }
383 }
384
385 public void updateMessages() {
386 ConversationActivity activity = (ConversationActivity) getActivity();
387 List<Message> encryptedMessages = new LinkedList<Message>();
388 for (Message message : this.conversation.getMessages()) {
389 if (message.getEncryption() == Message.ENCRYPTION_PGP) {
390 encryptedMessages.add(message);
391 }
392 }
393 if (encryptedMessages.size() > 0) {
394 DecryptMessage task = new DecryptMessage();
395 Message[] msgs = new Message[encryptedMessages.size()];
396 task.execute(encryptedMessages.toArray(msgs));
397 }
398 this.messageList.clear();
399 this.messageList.addAll(this.conversation.getMessages());
400 this.messageListAdapter.notifyDataSetChanged();
401 if (conversation.getMode() == Conversation.MODE_SINGLE) {
402 if (messageList.size() >= 1) {
403 int latestEncryption = this.conversation.getLatestMessage()
404 .getEncryption();
405 if (latestEncryption == Message.ENCRYPTION_DECRYPTED) {
406 conversation.nextMessageEncryption = Message.ENCRYPTION_PGP;
407 } else {
408 conversation.nextMessageEncryption = latestEncryption;
409 }
410 makeFingerprintWarning(latestEncryption);
411 }
412 } else {
413 if (conversation.getMucOptions().getError() != 0) {
414 mucError.setVisibility(View.VISIBLE);
415 if (conversation.getMucOptions().getError() == MucOptions.ERROR_NICK_IN_USE) {
416 mucErrorText.setText(getString(R.string.nick_in_use));
417 }
418 } else {
419 mucError.setVisibility(View.GONE);
420 }
421 }
422 getActivity().invalidateOptionsMenu();
423 updateChatMsgHint();
424 int size = this.messageList.size();
425 if (size >= 1)
426 messagesView.setSelection(size - 1);
427 if (!activity.shouldPaneBeOpen()) {
428 conversation.markRead();
429 // TODO update notifications
430 UIHelper.updateNotification(getActivity(),
431 activity.getConversationList(), null, false);
432 activity.updateConversationList();
433 }
434 }
435
436 protected void makeFingerprintWarning(int latestEncryption) {
437 final LinearLayout fingerprintWarning = (LinearLayout) getView()
438 .findViewById(R.id.new_fingerprint);
439 if (conversation.getContact() != null) {
440 Set<String> knownFingerprints = conversation.getContact()
441 .getOtrFingerprints();
442 if ((latestEncryption == Message.ENCRYPTION_OTR)
443 && (conversation.hasValidOtrSession()
444 && (conversation.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) && (!knownFingerprints
445 .contains(conversation.getOtrFingerprint())))) {
446 fingerprintWarning.setVisibility(View.VISIBLE);
447 TextView fingerprint = (TextView) getView().findViewById(
448 R.id.otr_fingerprint);
449 fingerprint.setText(conversation.getOtrFingerprint());
450 fingerprintWarning.setOnClickListener(new OnClickListener() {
451
452 @Override
453 public void onClick(View v) {
454 AlertDialog dialog = UIHelper
455 .getVerifyFingerprintDialog(
456 (ConversationActivity) getActivity(),
457 conversation, fingerprintWarning);
458 dialog.show();
459 }
460 });
461 } else {
462 fingerprintWarning.setVisibility(View.GONE);
463 }
464 } else {
465 fingerprintWarning.setVisibility(View.GONE);
466 }
467 }
468
469 protected void sendPlainTextMessage(Message message) {
470 ConversationActivity activity = (ConversationActivity) getActivity();
471 activity.xmppConnectionService.sendMessage(message, null);
472 chatMsg.setText("");
473 }
474
475 protected void sendPgpMessage(final Message message) {
476 ConversationActivity activity = (ConversationActivity) getActivity();
477 final XmppConnectionService xmppService = activity.xmppConnectionService;
478 Contact contact = message.getConversation().getContact();
479 if (activity.hasPgp()) {
480 if (contact.getPgpKeyId() != 0) {
481 xmppService.sendMessage(message, null);
482 chatMsg.setText("");
483 } else {
484 AlertDialog.Builder builder = new AlertDialog.Builder(
485 getActivity());
486 builder.setTitle("No openPGP key found");
487 builder.setIconAttribute(android.R.attr.alertDialogIcon);
488 builder.setMessage("There is no openPGP key assoziated with this contact");
489 builder.setNegativeButton("Cancel", null);
490 builder.setPositiveButton("Send plain text",
491 new DialogInterface.OnClickListener() {
492
493 @Override
494 public void onClick(DialogInterface dialog,
495 int which) {
496 conversation.nextMessageEncryption = Message.ENCRYPTION_NONE;
497 message.setEncryption(Message.ENCRYPTION_NONE);
498 xmppService.sendMessage(message, null);
499 chatMsg.setText("");
500 }
501 });
502 builder.create().show();
503 }
504 }
505 }
506
507 protected void sendOtrMessage(final Message message) {
508 ConversationActivity activity = (ConversationActivity) getActivity();
509 final XmppConnectionService xmppService = activity.xmppConnectionService;
510 if (conversation.hasValidOtrSession()) {
511 activity.xmppConnectionService.sendMessage(message, null);
512 chatMsg.setText("");
513 } else {
514 Hashtable<String, Integer> presences;
515 if (conversation.getContact() != null) {
516 presences = conversation.getContact().getPresences();
517 } else {
518 presences = null;
519 }
520 if ((presences == null) || (presences.size() == 0)) {
521 AlertDialog.Builder builder = new AlertDialog.Builder(
522 getActivity());
523 builder.setTitle("Contact is offline");
524 builder.setIconAttribute(android.R.attr.alertDialogIcon);
525 builder.setMessage("Sending OTR encrypted messages to an offline contact is impossible.");
526 builder.setPositiveButton("Send plain text",
527 new DialogInterface.OnClickListener() {
528
529 @Override
530 public void onClick(DialogInterface dialog,
531 int which) {
532 conversation.nextMessageEncryption = Message.ENCRYPTION_NONE;
533 message.setEncryption(Message.ENCRYPTION_NONE);
534 xmppService.sendMessage(message, null);
535 chatMsg.setText("");
536 }
537 });
538 builder.setNegativeButton("Cancel", null);
539 builder.create().show();
540 } else if (presences.size() == 1) {
541 xmppService.sendMessage(message, (String) presences.keySet()
542 .toArray()[0]);
543 chatMsg.setText("");
544 } else {
545 AlertDialog.Builder builder = new AlertDialog.Builder(
546 getActivity());
547 builder.setTitle("Choose Presence");
548 final String[] presencesArray = new String[presences.size()];
549 presences.keySet().toArray(presencesArray);
550 builder.setItems(presencesArray,
551 new DialogInterface.OnClickListener() {
552
553 @Override
554 public void onClick(DialogInterface dialog,
555 int which) {
556 xmppService.sendMessage(message,
557 presencesArray[which]);
558 chatMsg.setText("");
559 }
560 });
561 builder.create().show();
562 }
563 }
564 }
565
566 private static class ViewHolder {
567
568 protected ImageView indicator;
569 protected TextView time;
570 protected TextView messageBody;
571 protected ImageView imageView;
572
573 }
574
575 private class BitmapCache {
576 private HashMap<String, Bitmap> bitmaps = new HashMap<String, Bitmap>();
577 private Bitmap error = null;
578
579 public Bitmap get(String name, Contact contact, Context context) {
580 if (bitmaps.containsKey(name)) {
581 return bitmaps.get(name);
582 } else {
583 Bitmap bm = UIHelper.getContactPicture(contact, name, 200, context);
584 bitmaps.put(name, bm);
585 return bm;
586 }
587 }
588
589 public Bitmap getError() {
590 if (error == null) {
591 error = UIHelper.getErrorPicture(200);
592 }
593 return error;
594 }
595 }
596
597 class DecryptMessage extends AsyncTask<Message, Void, Boolean> {
598
599 @Override
600 protected Boolean doInBackground(Message... params) {
601 final ConversationActivity activity = (ConversationActivity) getActivity();
602 askForPassphraseIntent = null;
603 for (int i = 0; i < params.length; ++i) {
604 if (params[i].getEncryption() == Message.ENCRYPTION_PGP) {
605 String body = params[i].getBody();
606 String decrypted = null;
607 if (activity == null) {
608 return false;
609 } else if (!activity.xmppConnectionServiceBound) {
610 return false;
611 }
612 try {
613 decrypted = activity.xmppConnectionService
614 .getPgpEngine().decrypt(body);
615 } catch (UserInputRequiredException e) {
616 askForPassphraseIntent = e.getPendingIntent()
617 .getIntentSender();
618 activity.runOnUiThread(new Runnable() {
619
620 @Override
621 public void run() {
622 pgpInfo.setVisibility(View.VISIBLE);
623 }
624 });
625
626 return false;
627
628 } catch (OpenPgpException e) {
629 Log.d("gultsch", "error decrypting pgp");
630 }
631 if (decrypted != null) {
632 params[i].setBody(decrypted);
633 params[i].setEncryption(Message.ENCRYPTION_DECRYPTED);
634 activity.xmppConnectionService.updateMessage(params[i]);
635 }
636 if (activity != null) {
637 activity.runOnUiThread(new Runnable() {
638
639 @Override
640 public void run() {
641 messageListAdapter.notifyDataSetChanged();
642 }
643 });
644 }
645 }
646 if (activity != null) {
647 activity.runOnUiThread(new Runnable() {
648
649 @Override
650 public void run() {
651 activity.updateConversationList();
652 }
653 });
654 }
655 }
656 return true;
657 }
658
659 }
660
661 public void setText(String text) {
662 this.pastedText = text;
663 }
664}