private static String getContent(final WikiPage wikiPage) {
try {
final ParserInput input = new ParserInput();
input.setWikiUser(null);
input.setAllowSectionEdit(false);
input.setDepth(2);
input.setContext("");
input.setLocale(Locale.ENGLISH);
input.setTopicName("dummy");
input.setUserIpAddress("0.0.0.0");
input.setDataHandler(DUMMY_DATA_HANDLER);
input.setVirtualWiki("/olat");
final AbstractParser parser = new JFlexParser(input);
final ParserDocument parsedDoc = parser.parseHTML(wikiPage.getContent());
final String parsedContent = parsedDoc.getContent();
final String filteredContent =
FilterFactory.getHtmlTagAndDescapingFilter().filter(parsedContent);
return filteredContent;
} catch (final Exception e) {
e.printStackTrace();
log.error("", e);
return wikiPage.getContent();
}
}
/**
* Retrieve the content of a topic from the cache, or if it is not yet in the cache then add it to
* the cache.
*
* @param context The servlet context for the topic being retrieved. May be <code>null</code> if
* the <code>cook</code> parameter is set to <code>false</code>.
* @param locale The locale for the topic being retrieved. May be <code>null</code> if the <code>
* cook</code> parameter is set to <code>false</code>.
* @param virtualWiki The virtual wiki for the topic being retrieved.
* @param topicName The name of the topic being retrieved.
* @param cook A parameter indicating whether or not the content should be parsed before it is
* added to the cache. Stylesheet content (CSS) is not parsed, but most other content is
* parsed.
* @return The parsed or unparsed (depending on the <code>cook</code> parameter) topic content.
*/
protected static String cachedContent(
String context, Locale locale, String virtualWiki, String topicName, boolean cook) {
String content = null;
String key = WikiCache.key(virtualWiki, topicName);
Element cacheElement = WikiCache.retrieveFromCache(WikiBase.CACHE_PARSED_TOPIC_CONTENT, key);
if (cacheElement != null) {
content = (String) cacheElement.getObjectValue();
return (content == null) ? null : new String(content);
}
try {
Topic topic = WikiBase.getDataHandler().lookupTopic(virtualWiki, topicName, false, null);
content = topic.getTopicContent();
if (cook) {
ParserInput parserInput = new ParserInput();
parserInput.setContext(context);
parserInput.setLocale(locale);
parserInput.setVirtualWiki(virtualWiki);
parserInput.setTopicName(topicName);
content = Utilities.parse(parserInput, null, content);
}
WikiCache.addToCache(WikiBase.CACHE_PARSED_TOPIC_CONTENT, key, content);
} catch (Exception e) {
logger.warning("error getting cached page " + virtualWiki + " / " + topicName, e);
return null;
}
return content;
}
/** Functionality to handle the "Save" button being clicked. */
private void save(HttpServletRequest request, ModelAndView next, WikiPageInfo pageInfo)
throws Exception {
String topicName = WikiUtil.getTopicFromRequest(request);
String virtualWiki = pageInfo.getVirtualWikiName();
Topic topic = loadTopic(virtualWiki, topicName);
Topic lastTopic = WikiBase.getDataHandler().lookupTopic(virtualWiki, topicName, false, null);
if (lastTopic != null
&& !lastTopic.getCurrentVersionId().equals(retrieveLastTopicVersionId(request, topic))) {
// someone else has edited the topic more recently
resolve(request, next, pageInfo);
return;
}
String contents = request.getParameter("contents");
String sectionName = "";
if (!StringUtils.isBlank(request.getParameter("section"))) {
// load section of topic
int section = Integer.valueOf(request.getParameter("section"));
ParserOutput parserOutput = new ParserOutput();
String[] spliceResult =
ParserUtil.parseSplice(
parserOutput,
request.getContextPath(),
request.getLocale(),
virtualWiki,
topicName,
section,
contents);
contents = spliceResult[1];
sectionName = parserOutput.getSectionName();
}
if (contents == null) {
logger.warning("The topic " + topicName + " has no content");
throw new WikiException(new WikiMessage("edit.exception.nocontent", topicName));
}
// strip line feeds
contents = StringUtils.remove(contents, '\r');
String lastTopicContent =
(lastTopic != null) ? StringUtils.remove(lastTopic.getTopicContent(), '\r') : "";
if (lastTopic != null && StringUtils.equals(lastTopicContent, contents)) {
// topic hasn't changed. redirect to prevent user from refreshing and re-submitting
ServletUtil.redirect(next, virtualWiki, topic.getName());
return;
}
String editComment = request.getParameter("editComment");
if (handleSpam(request, next, topicName, contents, editComment)) {
this.loadEdit(request, next, pageInfo, contents, virtualWiki, topicName, false);
return;
}
// parse for signatures and other syntax that should not be saved in raw form
WikiUser user = ServletUtil.currentWikiUser();
ParserInput parserInput = new ParserInput();
parserInput.setContext(request.getContextPath());
parserInput.setLocale(request.getLocale());
parserInput.setWikiUser(user);
parserInput.setTopicName(topicName);
parserInput.setUserDisplay(ServletUtil.getIpAddress(request));
parserInput.setVirtualWiki(virtualWiki);
ParserOutput parserOutput = ParserUtil.parseMetadata(parserInput, contents);
// parse signatures and other values that need to be updated prior to saving
contents = ParserUtil.parseMinimal(parserInput, contents);
topic.setTopicContent(contents);
if (!StringUtils.isBlank(parserOutput.getRedirect())) {
// set up a redirect
topic.setRedirectTo(parserOutput.getRedirect());
topic.setTopicType(TopicType.REDIRECT);
} else if (topic.getTopicType() == TopicType.REDIRECT) {
// no longer a redirect
topic.setRedirectTo(null);
topic.setTopicType(TopicType.ARTICLE);
}
int charactersChanged = StringUtils.length(contents) - StringUtils.length(lastTopicContent);
TopicVersion topicVersion =
new TopicVersion(
user, ServletUtil.getIpAddress(request), editComment, contents, charactersChanged);
if (request.getParameter("minorEdit") != null) {
topicVersion.setEditType(TopicVersion.EDIT_MINOR);
}
WikiBase.getDataHandler()
.writeTopic(topic, topicVersion, parserOutput.getCategories(), parserOutput.getLinks());
// update watchlist
WikiUserDetailsImpl userDetails = ServletUtil.currentUserDetails();
if (!userDetails.hasRole(Role.ROLE_ANONYMOUS)) {
Watchlist watchlist = ServletUtil.currentWatchlist(request, virtualWiki);
boolean watchTopic = (request.getParameter("watchTopic") != null);
if (watchlist.containsTopic(topicName) != watchTopic) {
WikiBase.getDataHandler()
.writeWatchlistEntry(watchlist, virtualWiki, topicName, user.getUserId());
}
}
// redirect to prevent user from refreshing and re-submitting
String target = topic.getName();
if (!StringUtils.isBlank(sectionName)) {
target += "#" + sectionName;
}
ServletUtil.redirect(next, virtualWiki, target);
}
/**
* Utility method used when viewing a topic.
*
* @param request The current servlet request object.
* @param next The current Spring ModelAndView object.
* @param pageInfo The current WikiPageInfo object, which contains information needed for
* rendering the final JSP page.
* @param pageTitle The title of the page being rendered.
* @param topic The Topic object for the topic being displayed.
* @param sectionEdit Set to <code>true</code> if edit links should be displayed for each section
* of the topic.
* @throws Exception Thrown if any error occurs during processing.
*/
protected static void viewTopic(
HttpServletRequest request,
ModelAndView next,
WikiPageInfo pageInfo,
WikiMessage pageTitle,
Topic topic,
boolean sectionEdit)
throws Exception {
// FIXME - what should the default be for topics that don't exist?
if (topic == null) {
throw new WikiException(new WikiMessage("common.exception.notopic"));
}
WikiUtil.validateTopicName(topic.getName());
if (topic.getTopicType() == Topic.TYPE_REDIRECT
&& (request.getParameter("redirect") == null
|| !request.getParameter("redirect").equalsIgnoreCase("no"))) {
Topic child = Utilities.findRedirectedTopic(topic, 0);
if (!child.getName().equals(topic.getName())) {
pageInfo.setRedirectName(topic.getName());
pageTitle = new WikiMessage("topic.title", child.getName());
topic = child;
}
}
String virtualWiki = topic.getVirtualWiki();
String topicName = topic.getName();
WikiUser user = Utilities.currentUser();
if (sectionEdit && !ServletUtil.isEditable(virtualWiki, topicName, user)) {
sectionEdit = false;
}
ParserInput parserInput = new ParserInput();
parserInput.setContext(request.getContextPath());
parserInput.setLocale(request.getLocale());
parserInput.setWikiUser(user);
parserInput.setTopicName(topicName);
parserInput.setUserIpAddress(request.getRemoteAddr());
parserInput.setVirtualWiki(virtualWiki);
parserInput.setAllowSectionEdit(sectionEdit);
ParserDocument parserDocument = new ParserDocument();
String content = Utilities.parse(parserInput, parserDocument, topic.getTopicContent());
// FIXME - the null check should be unnecessary
if (parserDocument != null && parserDocument.getCategories().size() > 0) {
LinkedHashMap categories = new LinkedHashMap();
for (Iterator iterator = parserDocument.getCategories().keySet().iterator();
iterator.hasNext(); ) {
String key = (String) iterator.next();
String value =
key.substring(
NamespaceHandler.NAMESPACE_CATEGORY.length()
+ NamespaceHandler.NAMESPACE_SEPARATOR.length());
categories.put(key, value);
}
next.addObject("categories", categories);
}
topic.setTopicContent(content);
if (topic.getTopicType() == Topic.TYPE_CATEGORY) {
loadCategoryContent(next, virtualWiki, topic.getName());
}
if (topic.getTopicType() == Topic.TYPE_IMAGE || topic.getTopicType() == Topic.TYPE_FILE) {
Collection fileVersions =
WikiBase.getDataHandler().getAllWikiFileVersions(virtualWiki, topicName, true);
for (Iterator iterator = fileVersions.iterator(); iterator.hasNext(); ) {
// update version urls to include web root path
WikiFileVersion fileVersion = (WikiFileVersion) iterator.next();
String url =
FilenameUtils.normalize(
Environment.getValue(Environment.PROP_FILE_DIR_RELATIVE_PATH)
+ "/"
+ fileVersion.getUrl());
url = FilenameUtils.separatorsToUnix(url);
fileVersion.setUrl(url);
}
next.addObject("fileVersions", fileVersions);
if (topic.getTopicType() == Topic.TYPE_IMAGE) {
next.addObject("topicImage", new Boolean(true));
} else {
next.addObject("topicFile", new Boolean(true));
}
}
pageInfo.setSpecial(false);
pageInfo.setTopicName(topicName);
next.addObject(ServletUtil.PARAMETER_TOPIC_OBJECT, topic);
if (pageTitle != null) {
pageInfo.setPageTitle(pageTitle);
}
}
private void save(HttpServletRequest request, ModelAndView next, WikiPageInfo pageInfo)
throws Exception {
String topicName = JAMWikiServlet.getTopicFromRequest(request);
String virtualWiki = JAMWikiServlet.getVirtualWikiFromURI(request);
Topic topic = loadTopic(virtualWiki, topicName);
TopicVersion lastTopicVersion =
WikiBase.getHandler().lookupLastTopicVersion(virtualWiki, topicName);
if (lastTopicVersion != null
&& lastTopicVersion.getTopicVersionId()
!= retrieveLastTopicVersionId(request, virtualWiki, topicName)) {
// someone else has edited the topic more recently
resolve(request, next, pageInfo);
return;
}
String contents = request.getParameter("contents");
if (StringUtils.hasText(request.getParameter("section"))) {
// load section of topic
int section = (new Integer(request.getParameter("section"))).intValue();
ParserDocument parserDocument =
Utilities.parseSplice(request, virtualWiki, topicName, section, contents);
contents = parserDocument.getContent();
}
if (contents == null) {
logger.warning("The topic " + topicName + " has no content");
throw new WikiException(new WikiMessage("edit.exception.nocontent", topicName));
}
if (lastTopicVersion != null && lastTopicVersion.getVersionContent().equals(contents)) {
viewTopic(request, next, pageInfo, topicName);
return;
}
// parse for signatures and other syntax that should not be saved in raw form
WikiUser user = Utilities.currentUser(request);
ParserInput parserInput = new ParserInput();
parserInput.setContext(request.getContextPath());
parserInput.setLocale(request.getLocale());
parserInput.setWikiUser(user);
parserInput.setTopicName(topicName);
parserInput.setUserIpAddress(request.getRemoteAddr());
parserInput.setVirtualWiki(virtualWiki);
ParserDocument parserDocument = Utilities.parseSave(parserInput, contents);
contents = parserDocument.getContent();
topic.setTopicContent(contents);
if (StringUtils.hasText(parserDocument.getRedirect())) {
// set up a redirect
topic.setRedirectTo(parserDocument.getRedirect());
topic.setTopicType(Topic.TYPE_REDIRECT);
} else if (topic.getTopicType() == Topic.TYPE_REDIRECT) {
// no longer a redirect
topic.setRedirectTo(null);
topic.setTopicType(Topic.TYPE_ARTICLE);
}
TopicVersion topicVersion =
new TopicVersion(
user, request.getRemoteAddr(), request.getParameter("editComment"), contents);
if (request.getParameter("minorEdit") != null) {
topicVersion.setEditType(TopicVersion.EDIT_MINOR);
}
WikiBase.getHandler().writeTopic(topic, topicVersion, parserDocument);
// a save request has been made
JAMWikiServlet.removeCachedContents();
viewTopic(request, next, pageInfo, topicName);
}