/** Functionality to handle the "Show Changes" button being clicked. */
private void showChanges(
HttpServletRequest request,
ModelAndView next,
WikiPageInfo pageInfo,
String virtualWiki,
String topicName,
Integer lastTopicVersionId)
throws Exception {
String contents1 = request.getParameter("contents");
String contents2 = "";
if (!StringUtils.isBlank(request.getParameter("section"))) {
// editing a section of a topic
int section = Integer.valueOf(request.getParameter("section"));
String[] sliceResults =
ParserUtil.parseSlice(
request.getContextPath(), request.getLocale(), virtualWiki, topicName, section);
contents2 = sliceResults[1];
} else if (lastTopicVersionId != null) {
// get the full topic version
TopicVersion lastTopicVersion =
WikiBase.getDataHandler().lookupTopicVersion(lastTopicVersionId);
contents2 = lastTopicVersion.getVersionContent();
}
this.loadDiff(request, next, pageInfo, contents1, contents2);
next.addObject("editShowChanges", "true");
}
private void edit(HttpServletRequest request, ModelAndView next, WikiPageInfo pageInfo)
throws Exception {
String topicName = WikiUtil.getTopicFromRequest(request);
String virtualWiki = pageInfo.getVirtualWikiName();
Topic topic = loadTopic(virtualWiki, topicName);
// topic name might be updated by loadTopic
topicName = topic.getName();
Integer lastTopicVersionId = retrieveLastTopicVersionId(request, topic);
next.addObject("lastTopicVersionId", lastTopicVersionId);
String contents = (String) request.getParameter("contents");
if (isPreview(request)) {
preview(request, next, pageInfo);
} else if (isShowChanges(request)) {
showChanges(request, next, pageInfo, virtualWiki, topicName, lastTopicVersionId);
} else if (!StringUtils.isBlank(request.getParameter("topicVersionId"))) {
// editing an older version
Integer topicVersionId = Integer.valueOf(request.getParameter("topicVersionId"));
TopicVersion topicVersion = WikiBase.getDataHandler().lookupTopicVersion(topicVersionId);
if (topicVersion == null) {
throw new WikiException(new WikiMessage("common.exception.notopic"));
}
contents = topicVersion.getVersionContent();
if (!lastTopicVersionId.equals(topicVersionId)) {
next.addObject("topicVersionId", topicVersionId);
}
} else if (!StringUtils.isBlank(request.getParameter("section"))) {
// editing a section of a topic
int section = Integer.valueOf(request.getParameter("section"));
String[] sliceResults =
ParserUtil.parseSlice(
request.getContextPath(), request.getLocale(), virtualWiki, topicName, section);
contents = sliceResults[1];
String sectionName = sliceResults[0];
String editComment = "/* " + sectionName + " */ ";
next.addObject("editComment", editComment);
} else {
// editing a full new or existing topic
contents = (topic == null) ? "" : topic.getTopicContent();
}
this.loadEdit(request, next, pageInfo, contents, virtualWiki, topicName, true);
}
/** 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);
}