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 view.setTag(viewHolder);
243 } else {
244 viewHolder = (ViewHolder) view.getTag();
245 }
246 if (type == RECIEVED) {
247 if (item.getConversation().getMode() == Conversation.MODE_MULTI) {
248 if (item.getCounterpart() != null) {
249 viewHolder.imageView.setImageBitmap(mBitmapCache
250 .get(item.getCounterpart(), null,
251 getActivity()
252 .getApplicationContext()));
253 } else {
254 viewHolder.imageView.setImageBitmap(mBitmapCache
255 .get(item.getConversation().getName(useSubject),
256 null, getActivity()
257 .getApplicationContext()));
258 }
259 }
260 }
261 String body = item.getBody();
262 if (body != null) {
263 if (item.getEncryption() == Message.ENCRYPTION_PGP) {
264 viewHolder.messageBody
265 .setText(getString(R.string.encrypted_message));
266 viewHolder.messageBody.setTextColor(0xff33B5E5);
267 viewHolder.messageBody.setTypeface(null,
268 Typeface.ITALIC);
269 } else {
270 viewHolder.messageBody.setText(body.trim());
271 viewHolder.messageBody.setTextColor(0xff000000);
272 viewHolder.messageBody.setTypeface(null,
273 Typeface.NORMAL);
274 }
275 }
276 if (item.getStatus() == Message.STATUS_UNSEND) {
277 viewHolder.time.setTypeface(null, Typeface.ITALIC);
278 viewHolder.time.setText("sending\u2026");
279 } else {
280 viewHolder.time.setTypeface(null, Typeface.NORMAL);
281 if ((item.getConversation().getMode() == Conversation.MODE_SINGLE)
282 || (type != RECIEVED)) {
283 viewHolder.time.setText(UIHelper
284 .readableTimeDifference(item.getTimeSent()));
285 } else {
286 viewHolder.time.setText(item.getCounterpart()
287 + " \u00B7 "
288 + UIHelper.readableTimeDifference(item
289 .getTimeSent()));
290 }
291 }
292 return view;
293 }
294 };
295 messagesView.setAdapter(messageListAdapter);
296
297 return view;
298 }
299
300 protected Bitmap findSelfPicture() {
301 SharedPreferences sharedPref = PreferenceManager
302 .getDefaultSharedPreferences(getActivity()
303 .getApplicationContext());
304 boolean showPhoneSelfContactPicture = sharedPref.getBoolean(
305 "show_phone_selfcontact_picture", true);
306
307 return UIHelper.getSelfContactPicture(conversation.getAccount(), 200,
308 showPhoneSelfContactPicture, getActivity());
309 }
310
311 @Override
312 public void onStart() {
313 super.onStart();
314 ConversationActivity activity = (ConversationActivity) getActivity();
315
316 if (activity.xmppConnectionServiceBound) {
317 this.onBackendConnected();
318 }
319 }
320
321 public void onBackendConnected() {
322 final ConversationActivity activity = (ConversationActivity) getActivity();
323 activity.registerListener();
324 this.conversation = activity.getSelectedConversation();
325 if (this.conversation == null) {
326 return;
327 }
328 this.selfBitmap = findSelfPicture();
329 updateMessages();
330 // rendering complete. now go tell activity to close pane
331 if (activity.getSlidingPaneLayout().isSlideable()) {
332 if (!activity.shouldPaneBeOpen()) {
333 activity.getSlidingPaneLayout().closePane();
334 activity.getActionBar().setDisplayHomeAsUpEnabled(true);
335 activity.getActionBar().setTitle(conversation.getName(useSubject));
336 activity.invalidateOptionsMenu();
337
338 }
339 }
340 if (queuedPqpMessage != null) {
341 this.conversation.nextMessageEncryption = Message.ENCRYPTION_PGP;
342 Message message = new Message(conversation, queuedPqpMessage,
343 Message.ENCRYPTION_PGP);
344 sendPgpMessage(message);
345 }
346 if (conversation.getMode() == Conversation.MODE_MULTI) {
347 activity.xmppConnectionService
348 .setOnRenameListener(new OnRenameListener() {
349
350 @Override
351 public void onRename(final boolean success) {
352 activity.xmppConnectionService.updateConversation(conversation);
353 getActivity().runOnUiThread(new Runnable() {
354
355 @Override
356 public void run() {
357 if (success) {
358 Toast.makeText(
359 getActivity(),
360 "Your nickname has been changed",
361 Toast.LENGTH_SHORT).show();
362 } else {
363 Toast.makeText(getActivity(),
364 "Nichname is already in use",
365 Toast.LENGTH_SHORT).show();
366 }
367 }
368 });
369 }
370 });
371 }
372 }
373
374 public void updateMessages() {
375 ConversationActivity activity = (ConversationActivity) getActivity();
376 List<Message> encryptedMessages = new LinkedList<Message>();
377 for (Message message : this.conversation.getMessages()) {
378 if (message.getEncryption() == Message.ENCRYPTION_PGP) {
379 encryptedMessages.add(message);
380 }
381 }
382 if (encryptedMessages.size() > 0) {
383 DecryptMessage task = new DecryptMessage();
384 Message[] msgs = new Message[encryptedMessages.size()];
385 task.execute(encryptedMessages.toArray(msgs));
386 }
387 this.messageList.clear();
388 this.messageList.addAll(this.conversation.getMessages());
389 this.messageListAdapter.notifyDataSetChanged();
390 if (conversation.getMode() == Conversation.MODE_SINGLE) {
391 if (messageList.size() >= 1) {
392 int latestEncryption = this.conversation.getLatestMessage()
393 .getEncryption();
394 if (latestEncryption == Message.ENCRYPTION_DECRYPTED) {
395 conversation.nextMessageEncryption = Message.ENCRYPTION_PGP;
396 } else {
397 conversation.nextMessageEncryption = latestEncryption;
398 }
399 makeFingerprintWarning(latestEncryption);
400 }
401 } else {
402 if (conversation.getMucOptions().getError() != 0) {
403 mucError.setVisibility(View.VISIBLE);
404 if (conversation.getMucOptions().getError() == MucOptions.ERROR_NICK_IN_USE) {
405 mucErrorText.setText(getString(R.string.nick_in_use));
406 }
407 } else {
408 mucError.setVisibility(View.GONE);
409 }
410 }
411 getActivity().invalidateOptionsMenu();
412 updateChatMsgHint();
413 int size = this.messageList.size();
414 if (size >= 1)
415 messagesView.setSelection(size - 1);
416 if (!activity.shouldPaneBeOpen()) {
417 conversation.markRead();
418 // TODO update notifications
419 UIHelper.updateNotification(getActivity(),
420 activity.getConversationList(), null, false);
421 activity.updateConversationList();
422 }
423 }
424
425 protected void makeFingerprintWarning(int latestEncryption) {
426 final LinearLayout fingerprintWarning = (LinearLayout) getView()
427 .findViewById(R.id.new_fingerprint);
428 if (conversation.getContact() != null) {
429 Set<String> knownFingerprints = conversation.getContact()
430 .getOtrFingerprints();
431 if ((latestEncryption == Message.ENCRYPTION_OTR)
432 && (conversation.hasValidOtrSession()
433 && (conversation.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) && (!knownFingerprints
434 .contains(conversation.getOtrFingerprint())))) {
435 fingerprintWarning.setVisibility(View.VISIBLE);
436 TextView fingerprint = (TextView) getView().findViewById(
437 R.id.otr_fingerprint);
438 fingerprint.setText(conversation.getOtrFingerprint());
439 fingerprintWarning.setOnClickListener(new OnClickListener() {
440
441 @Override
442 public void onClick(View v) {
443 AlertDialog dialog = UIHelper
444 .getVerifyFingerprintDialog(
445 (ConversationActivity) getActivity(),
446 conversation, fingerprintWarning);
447 dialog.show();
448 }
449 });
450 } else {
451 fingerprintWarning.setVisibility(View.GONE);
452 }
453 } else {
454 fingerprintWarning.setVisibility(View.GONE);
455 }
456 }
457
458 protected void sendPlainTextMessage(Message message) {
459 ConversationActivity activity = (ConversationActivity) getActivity();
460 activity.xmppConnectionService.sendMessage(message, null);
461 chatMsg.setText("");
462 }
463
464 protected void sendPgpMessage(final Message message) {
465 ConversationActivity activity = (ConversationActivity) getActivity();
466 final XmppConnectionService xmppService = activity.xmppConnectionService;
467 Contact contact = message.getConversation().getContact();
468 if (activity.hasPgp()) {
469 if (contact.getPgpKeyId() != 0) {
470 xmppService.sendMessage(message, null);
471 chatMsg.setText("");
472 } else {
473 AlertDialog.Builder builder = new AlertDialog.Builder(
474 getActivity());
475 builder.setTitle("No openPGP key found");
476 builder.setIconAttribute(android.R.attr.alertDialogIcon);
477 builder.setMessage("There is no openPGP key assoziated with this contact");
478 builder.setNegativeButton("Cancel", null);
479 builder.setPositiveButton("Send plain text",
480 new DialogInterface.OnClickListener() {
481
482 @Override
483 public void onClick(DialogInterface dialog,
484 int which) {
485 conversation.nextMessageEncryption = Message.ENCRYPTION_NONE;
486 message.setEncryption(Message.ENCRYPTION_NONE);
487 xmppService.sendMessage(message, null);
488 chatMsg.setText("");
489 }
490 });
491 builder.create().show();
492 }
493 }
494 }
495
496 protected void sendOtrMessage(final Message message) {
497 ConversationActivity activity = (ConversationActivity) getActivity();
498 final XmppConnectionService xmppService = activity.xmppConnectionService;
499 if (conversation.hasValidOtrSession()) {
500 activity.xmppConnectionService.sendMessage(message, null);
501 chatMsg.setText("");
502 } else {
503 Hashtable<String, Integer> presences;
504 if (conversation.getContact() != null) {
505 presences = conversation.getContact().getPresences();
506 } else {
507 presences = null;
508 }
509 if ((presences == null) || (presences.size() == 0)) {
510 AlertDialog.Builder builder = new AlertDialog.Builder(
511 getActivity());
512 builder.setTitle("Contact is offline");
513 builder.setIconAttribute(android.R.attr.alertDialogIcon);
514 builder.setMessage("Sending OTR encrypted messages to an offline contact is impossible.");
515 builder.setPositiveButton("Send plain text",
516 new DialogInterface.OnClickListener() {
517
518 @Override
519 public void onClick(DialogInterface dialog,
520 int which) {
521 conversation.nextMessageEncryption = Message.ENCRYPTION_NONE;
522 message.setEncryption(Message.ENCRYPTION_NONE);
523 xmppService.sendMessage(message, null);
524 chatMsg.setText("");
525 }
526 });
527 builder.setNegativeButton("Cancel", null);
528 builder.create().show();
529 } else if (presences.size() == 1) {
530 xmppService.sendMessage(message, (String) presences.keySet()
531 .toArray()[0]);
532 chatMsg.setText("");
533 } else {
534 AlertDialog.Builder builder = new AlertDialog.Builder(
535 getActivity());
536 builder.setTitle("Choose Presence");
537 final String[] presencesArray = new String[presences.size()];
538 presences.keySet().toArray(presencesArray);
539 builder.setItems(presencesArray,
540 new DialogInterface.OnClickListener() {
541
542 @Override
543 public void onClick(DialogInterface dialog,
544 int which) {
545 xmppService.sendMessage(message,
546 presencesArray[which]);
547 chatMsg.setText("");
548 }
549 });
550 builder.create().show();
551 }
552 }
553 }
554
555 private static class ViewHolder {
556
557 protected TextView time;
558 protected TextView messageBody;
559 protected ImageView imageView;
560
561 }
562
563 private class BitmapCache {
564 private HashMap<String, Bitmap> bitmaps = new HashMap<String, Bitmap>();
565 private Bitmap error = null;
566
567 public Bitmap get(String name, Contact contact, Context context) {
568 if (bitmaps.containsKey(name)) {
569 return bitmaps.get(name);
570 } else {
571 Bitmap bm = UIHelper.getContactPicture(contact, name, 200, context);
572 bitmaps.put(name, bm);
573 return bm;
574 }
575 }
576
577 public Bitmap getError() {
578 if (error == null) {
579 error = UIHelper.getErrorPicture(200);
580 }
581 return error;
582 }
583 }
584
585 class DecryptMessage extends AsyncTask<Message, Void, Boolean> {
586
587 @Override
588 protected Boolean doInBackground(Message... params) {
589 final ConversationActivity activity = (ConversationActivity) getActivity();
590 askForPassphraseIntent = null;
591 for (int i = 0; i < params.length; ++i) {
592 if (params[i].getEncryption() == Message.ENCRYPTION_PGP) {
593 String body = params[i].getBody();
594 String decrypted = null;
595 if (activity == null) {
596 return false;
597 } else if (!activity.xmppConnectionServiceBound) {
598 return false;
599 }
600 try {
601 decrypted = activity.xmppConnectionService
602 .getPgpEngine().decrypt(body);
603 } catch (UserInputRequiredException e) {
604 askForPassphraseIntent = e.getPendingIntent()
605 .getIntentSender();
606 activity.runOnUiThread(new Runnable() {
607
608 @Override
609 public void run() {
610 pgpInfo.setVisibility(View.VISIBLE);
611 }
612 });
613
614 return false;
615
616 } catch (OpenPgpException e) {
617 Log.d("gultsch", "error decrypting pgp");
618 }
619 if (decrypted != null) {
620 params[i].setBody(decrypted);
621 params[i].setEncryption(Message.ENCRYPTION_DECRYPTED);
622 activity.xmppConnectionService.updateMessage(params[i]);
623 }
624 if (activity != null) {
625 activity.runOnUiThread(new Runnable() {
626
627 @Override
628 public void run() {
629 messageListAdapter.notifyDataSetChanged();
630 }
631 });
632 }
633 }
634 if (activity != null) {
635 activity.runOnUiThread(new Runnable() {
636
637 @Override
638 public void run() {
639 activity.updateConversationList();
640 }
641 });
642 }
643 }
644 return true;
645 }
646
647 }
648
649 public void setText(String text) {
650 this.pastedText = text;
651 }
652}