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