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1 package org.columba.mail.gui.message.viewer;
19
20 import java.awt.BorderLayout  ;
21 import java.awt.Font ;
22 import java.awt.event.MouseEvent ;
23 import java.awt.event.MouseListener ;
24 import java.io.ByteArrayInputStream ;
25 import java.io.File ;
26 import java.io.FileOutputStream ;
27 import java.io.InputStream ;
28 import java.net.MalformedURLException ;
29 import java.net.URL ;
30 import java.nio.charset.Charset ;
31 import java.util.Iterator ;
32 import java.util.List ;
33 import java.util.Observable ;
34 import java.util.Observer ;
35 import java.util.logging.Logger ;
36 import java.util.regex.Matcher ;
37 import java.util.regex.Pattern ;
38
39 import javax.swing.BorderFactory ;
40 import javax.swing.JComponent ;
41 import javax.swing.JEditorPane ;
42 import javax.swing.JOptionPane ;
43 import javax.swing.JPanel ;
44 import javax.swing.JPopupMenu ;
45 import javax.swing.SwingUtilities ;
46 import javax.swing.event.CaretEvent ;
47 import javax.swing.event.CaretListener ;
48 import javax.swing.text.AttributeSet ;
49 import javax.swing.text.BadLocationException ;
50 import javax.swing.text.Element ;
51 import javax.swing.text.html.HTML ;
52 import javax.swing.text.html.HTMLDocument ;
53
54 import org.columba.api.plugin.IExtension;
55 import org.columba.api.plugin.IExtensionHandler;
56 import org.columba.api.plugin.IExtensionHandlerKeys;
57 import org.columba.api.plugin.PluginException;
58 import org.columba.api.plugin.PluginHandlerNotFoundException;
59 import org.columba.core.charset.CharsetOwnerInterface;
60 import org.columba.core.config.Config;
61 import org.columba.core.desktop.ColumbaDesktop;
62 import org.columba.core.gui.frame.DefaultContainer;
63 import org.columba.core.gui.htmlviewer.api.IHTMLViewerPlugin;
64 import org.columba.core.gui.util.FontProperties;
65 import org.columba.core.io.StreamUtils;
66 import org.columba.core.logging.Logging;
67 import org.columba.core.plugin.PluginManager;
68 import org.columba.core.util.TempFileStore;
69 import org.columba.core.xml.XmlElement;
70 import org.columba.mail.config.MailConfig;
71 import org.columba.mail.config.OptionsItem;
72 import org.columba.mail.folder.IMailbox;
73 import org.columba.mail.gui.composer.ComposerController;
74 import org.columba.mail.gui.composer.ComposerModel;
75 import org.columba.mail.gui.frame.MailFrameMediator;
76 import org.columba.mail.gui.message.IMessageController;
77 import org.columba.mail.gui.message.action.AddToAddressbookAction;
78 import org.columba.mail.gui.message.action.ComposeMessageAction;
79 import org.columba.mail.gui.message.action.CopyLinkLocationAction;
80 import org.columba.mail.gui.message.action.OpenAction;
81 import org.columba.mail.gui.message.action.OpenWithAction;
82 import org.columba.mail.gui.message.util.ColumbaURL;
83 import org.columba.mail.parser.text.HtmlParser;
84 import org.columba.ristretto.coder.Base64DecoderInputStream;
85 import org.columba.ristretto.coder.FallbackCharsetDecoderInputStream;
86 import org.columba.ristretto.coder.QuotedPrintableDecoderInputStream;
87 import org.columba.ristretto.message.MimeHeader;
88 import org.columba.ristretto.message.MimePart;
89 import org.columba.ristretto.message.MimeTree;
90
91
96 public class TextViewer extends JPanel implements IMimePartViewer, Observer ,
97 CaretListener {
98
99
100 private static final Logger LOG = Logger
101 .getLogger("org.columba.mail.gui.message.viewer");
102
103 private static final Pattern CIDPattern = Pattern.compile("cid:([^\"]+)",
104 Pattern.CASE_INSENSITIVE);
105
106 private String css = "";
109
110 private XmlElement smilies;
112
113 private boolean enableSmilies;
114
115 private String name;
117
118
123
124 private String body;
125
126
129 private boolean htmlMessage;
130
131 private IMessageController mediator;
132
133 private IHTMLViewerPlugin viewerPlugin;
134
135 private IMailbox folder;
136
137 private Object uid;
138
139 private boolean usingJDIC;
140
141 public TextViewer(IMessageController mediator) {
142 super();
143
144 this.mediator = mediator;
145
146 initHTMLViewerPlugin();
147
148 setLayout(new BorderLayout ());
149
150 add(viewerPlugin.getContainer(), BorderLayout.CENTER);
151
152 initConfiguration();
153
154 initStyleSheet();
155
156 if (!usingJDIC)
157 viewerPlugin.getComponent()
158 .addMouseListener(new URLMouseListener());
159
160 setBorder(BorderFactory.createEmptyBorder(0, 0, 0, 0));
161 }
162
163 private void initHTMLViewerPlugin() {
164 OptionsItem optionsItem = MailConfig.getInstance().getOptionsItem();
165 String selectedBrowser = optionsItem.getStringWithDefault(
166 OptionsItem.MESSAGEVIEWER, OptionsItem.SELECTED_BROWSER,
167 "Default");
168
169 try {
170 viewerPlugin = createHTMLViewerPluginInstance(selectedBrowser);
171 if (viewerPlugin == null || !viewerPlugin.initialized()) {
173 JOptionPane.showMessageDialog(this,
174 "Error while trying to load html viewer");
175
176 LOG
177 .severe("Error while trying to load html viewer -> falling back to default");
178
179 viewerPlugin = createHTMLViewerPluginInstance("Default");
180 }
181 } catch (Exception e) {
182 viewerPlugin = createHTMLViewerPluginInstance("Default");
183
184 if (Logging.DEBUG)
185 e.printStackTrace();
186 } catch (Error e) {
187 viewerPlugin = createHTMLViewerPluginInstance("Default");
188
189 if (Logging.DEBUG)
190 e.printStackTrace();
191 }
192
193 }
194
195 private JPopupMenu createPopupMenu(ColumbaURL url) {
196 JPopupMenu menu = new JPopupMenu ();
197 menu.add(new CopyLinkLocationAction(url));
198 menu.addSeparator();
199 menu.add(new OpenAction(url));
200 menu.add(new OpenWithAction(url));
201 menu.addSeparator();
202 menu.add(new AddToAddressbookAction(url));
203 menu.add(new ComposeMessageAction(url));
204
205 return menu;
206 }
207
208 private IHTMLViewerPlugin createHTMLViewerPluginInstance(String pluginId) {
209 IHTMLViewerPlugin plugin = null;
210 try {
211
212 IExtensionHandler handler = PluginManager.getInstance()
213 .getExtensionHandler(
214 IExtensionHandlerKeys.ORG_COLUMBA_CORE_HTMLVIEWER);
215
216 IExtension extension = handler.getExtension(pluginId);
217 if (extension == null)
218 return null;
219
220 plugin = (IHTMLViewerPlugin) extension.instanciateExtension(null);
221
222 return plugin;
223 } catch (PluginHandlerNotFoundException e) {
224 LOG.severe("Error while loading viewer plugin: " + e.getMessage());
225 if (Logging.DEBUG)
226 e.printStackTrace();
227 } catch (PluginException e) {
228 LOG.severe("Error while loading viewer plugin: " + e.getMessage());
229 if (Logging.DEBUG)
230 e.printStackTrace();
231 }
232
233 return null;
234 }
235
236
239 private void initConfiguration() {
240 XmlElement gui = MailConfig.getInstance().get("options").getElement(
241 "/options/gui");
242 XmlElement messageviewer = gui.getElement("messageviewer");
243
244 if (messageviewer == null) {
245 messageviewer = gui.addSubElement("messageviewer");
246 }
247
248 messageviewer.addObserver(this);
249
250 smilies = messageviewer.getElement("smilies");
251
252 if (smilies == null) {
253 smilies = messageviewer.addSubElement("smilies");
254 }
255
256 smilies.addObserver(this);
258
259 String enable = smilies.getAttribute("enabled", "true");
260
261 if (enable.equals("true")) {
262 enableSmilies = true;
263 } else {
264 enableSmilies = false;
265 }
266
267 XmlElement quote = messageviewer.getElement("quote");
268
269 if (quote == null) {
270 quote = messageviewer.addSubElement("quote");
271 }
272
273 quote.addObserver(this);
275
276 Font font = FontProperties.getTextFont();
278 name = font.getName();
279
280 XmlElement options = Config.getInstance().get("options").getElement(
281 "/options");
282 XmlElement gui1 = options.getElement("gui");
283 XmlElement fonts = gui1.getElement("fonts");
284
285 if (fonts == null) {
286 fonts = gui1.addSubElement("fonts");
287 }
288
289 fonts.addObserver(this);
291
292
296 }
297
298
303 public void view(IMailbox folder, Object uid, Integer [] address,
304 MailFrameMediator mediator) throws Exception {
305
306 this.folder = folder;
307 this.uid = uid;
308
309 MimePart bodyPart = null;
310 InputStream bodyStream;
311
312 MimeTree mimePartTree = folder.getMimePartTree(uid);
313
314 bodyPart = mimePartTree.getFromAddress(address);
315
316 if (bodyPart == null) {
317 bodyStream = new ByteArrayInputStream ("<No Message-Text>"
318 .getBytes());
319 } else {
320 htmlMessage = bodyPart.getHeader().getMimeType().getSubtype()
322 .equals("html");
323
324 bodyStream = folder.getMimePartBodyStream(uid, bodyPart
325 .getAddress());
326 }
327
328 bodyStream = MessageParser.decodeBodyStream(bodyPart, bodyStream);
329
330 if (!htmlMessage) {
332 Charset charset = ((CharsetOwnerInterface) mediator).getCharset();
333 charset = MessageParser.extractCharset(charset, bodyPart);
334
335 bodyStream = new FallbackCharsetDecoderInputStream(bodyStream,
336 charset);
337 }
338
339 StringBuffer text = StreamUtils.readCharacterStream(bodyStream);
341
342 if (isHTMLStrippingEnabled()) {
344 text = new StringBuffer (HtmlParser.stripHtmlTags(text.toString(),
346 true));
347
348 htmlMessage = false;
349 }
350
351 if (htmlMessage) {
352 body = text.toString();
354
355 body = downloadCIDParts(body, mimePartTree);
357
358 } else {
359
361 body = MessageParser.transformTextToHTML(text.toString(), css,
362 enableSmilies);
363
364
366 }
367
368 }
369
370 private boolean isHTMLStrippingEnabled() {
371 XmlElement html = MailConfig.getInstance().getMainFrameOptionsConfig()
372 .getRoot().getElement("/options/html");
373
374 return Boolean.valueOf(html.getAttribute("disable")).booleanValue();
375 }
376
377
383 private void initStyleSheet() {
384
388
393
394 css = "<style type=\"text/css\">\n" + "body {font-family:\"" + name
395 + "\";} \n" + "a { color: blue; text-decoration: underline }\n"
396 + "font.quoting {color:#949494;} \n" + "</style>\n";
397
398 }
399
400
407 public void update(Observable arg0, Object arg1) {
408 Font font = FontProperties.getTextFont();
409 name = font.getName();
410
411 initStyleSheet();
412
413 remove(viewerPlugin.getContainer());
415
416 initHTMLViewerPlugin();
418
419 add(viewerPlugin.getContainer(), BorderLayout.CENTER);
421 }
422
423 public String getSelectedText() {
424 return viewerPlugin.getSelectedText();
425 }
426
427 public String getText() {
428 return viewerPlugin.getText();
429 }
430
431 public void setCaretPosition(int position) {
432 viewerPlugin.setCaretPosition(position);
433 }
434
435 public void moveCaretPosition(int position) {
436 viewerPlugin.moveCaretPosition(position);
437 }
438
439
442 public JComponent getView() {
443 return viewerPlugin.getContainer();
444 }
445
446
449 public void updateGUI() throws Exception {
450 viewerPlugin.view(body);
451 }
452
453
456 public void caretUpdate(CaretEvent arg0) {
457 }
459
460 private String downloadCIDParts(String body, MimeTree mimeTree) {
461 Matcher matcher = CIDPattern.matcher(body);
462
463 if (!matcher.find()) {
464 return body;
465 }
466
467 StringBuffer modifiedBody = new StringBuffer (body.length());
468 File mimePartFile;
469 List mimeParts = mimeTree.getAllLeafs();
470
471 MimePart CIDPart = findMimePart(mimeParts, matcher.group(1));
472 if (CIDPart != null) {
473 mimePartFile = TempFileStore.createTempFile();
474 try {
475 downloadMimePart(CIDPart, mimePartFile);
476
477 matcher.appendReplacement(modifiedBody, mimePartFile.toURL()
478 .toString());
479 } catch (Exception e) {
480 matcher.appendReplacement(modifiedBody, "missing");
481 }
482 } else {
483 matcher.appendReplacement(modifiedBody, "missing");
484 }
485
486 while (matcher.find()) {
487 CIDPart = findMimePart(mimeParts, matcher.group(1));
488 if (CIDPart != null) {
489 mimePartFile = TempFileStore.createTempFile();
490 try {
491 downloadMimePart(CIDPart, mimePartFile);
492
493 matcher.appendReplacement(modifiedBody, mimePartFile
494 .toURL().toString());
495 } catch (Exception e) {
496 matcher.appendReplacement(modifiedBody, "missing");
497 }
498 } else {
499 matcher.appendReplacement(modifiedBody, "missing");
500 }
501 }
502
503 matcher.appendTail(modifiedBody);
504
505 return modifiedBody.toString();
506 }
507
508 private MimePart findMimePart(List mimeParts, String findCid) {
509 MimePart result;
510 Iterator it = mimeParts.iterator();
511 while (it.hasNext()) {
512 result = (MimePart) it.next();
513
514 String cid = result.getHeader().getContentID();
515 if (cid != null
516 && cid.substring(1, cid.length() - 1).equalsIgnoreCase(
517 findCid)) {
518 return result;
519 }
520 }
521
522 return null;
523 }
524
525 private void downloadMimePart(MimePart part, File destFile)
526 throws Exception {
527 MimeHeader header = part.getHeader();
528
529 InputStream bodyStream = folder.getMimePartBodyStream(uid, part
530 .getAddress());
531
532 int encoding = header.getContentTransferEncoding();
533
534 switch (encoding) {
535 case MimeHeader.QUOTED_PRINTABLE:
536 bodyStream = new QuotedPrintableDecoderInputStream(bodyStream);
537 break;
538
539 case MimeHeader.BASE64:
540 bodyStream = new Base64DecoderInputStream(bodyStream);
541 break;
542 default:
543 }
544
545 FileOutputStream fileStream = new FileOutputStream (destFile);
546 StreamUtils.streamCopy(bodyStream, fileStream);
547 fileStream.close();
548 bodyStream.close();
549 }
550
551
554 public boolean isHtmlMessage() {
555 return htmlMessage;
556 }
557
558 protected URL extractURL(MouseEvent event) {
559 JEditorPane pane = (JEditorPane ) event.getSource();
560 HTMLDocument doc = (HTMLDocument ) pane.getDocument();
561
562 Element e = doc.getCharacterElement(pane.viewToModel(event.getPoint()));
563 AttributeSet a = e.getAttributes();
564 AttributeSet anchor = (AttributeSet ) a.getAttribute(HTML.Tag.A);
565
566 if (anchor == null) {
567 return null;
568 }
569
570 URL url = null;
571
572 try {
573 url = new URL ((String ) anchor.getAttribute(HTML.Attribute.HREF));
574 } catch (MalformedURLException mue) {
575 return null;
576 }
577
578 return url;
579 }
580
581
587 private ColumbaURL extractMailToURL(MouseEvent event) {
588
589 ColumbaURL url = new ColumbaURL(extractURL(event));
590 if (url.getRealURL() == null)
591 return null;
592
593 if (!url.getRealURL().getProtocol().equalsIgnoreCase("mailto"))
594 return url;
595
596 JEditorPane pane = (JEditorPane ) event.getSource();
597 HTMLDocument doc = (HTMLDocument ) pane.getDocument();
598
599 Element e = doc.getCharacterElement(pane.viewToModel(event.getPoint()));
600 try {
601 url.setSender(doc.getText(e.getStartOffset(), (e.getEndOffset() - e
602 .getStartOffset())));
603 } catch (BadLocationException e1) {
604 url.setSender("");
605 }
606
607 return url;
608 }
609
610 class URLMouseListener implements MouseListener {
611
612 public void mousePressed(MouseEvent event) {
613 if (event.isPopupTrigger()) {
614 processPopup(event);
615 }
616 }
617
618 public void mouseReleased(MouseEvent event) {
619 if (event.isPopupTrigger()) {
620 processPopup(event);
621 }
622 }
623
624 public void mouseEntered(MouseEvent event) {
625 }
626
627 public void mouseExited(MouseEvent event) {
628 }
629
630 public void mouseClicked(MouseEvent event) {
631 if (!SwingUtilities.isLeftMouseButton(event)) {
632 return;
633 }
634
635 URL url = extractURL(event);
636
637 if (url == null) {
638 return;
639 }
640
641 if (url.getProtocol().equalsIgnoreCase("mailto")) {
642 ComposerController controller = new ComposerController();
644 new DefaultContainer(controller);
645
646 ComposerModel model = new ComposerModel();
647 model.setTo(url.getFile());
648
649 controller.setComposerModel(model);
651
652 controller.updateComponents(true);
653 } else {
654 ColumbaDesktop.getInstance().browse(url);
655 }
656 }
657 }
658
659 protected void processPopup(MouseEvent ev) {
660 final ColumbaURL mailto = extractMailToURL(ev);
662
663 final MouseEvent event = ev;
664 SwingUtilities.invokeLater(new Runnable () {
667
668 public void run() {
669 createPopupMenu(mailto).show(event.getComponent(),
670 event.getX(), event.getY());
671 }
672 });
673 }
674 } |
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