private void view(
HttpServletRequest request,
HttpServletResponse response,
ModelAndView next,
WikiPageInfo pageInfo)
throws Exception {
String topicName = WikiUtil.getTopicFromURI(request);
if (StringUtils.isBlank(topicName)) {
String virtualWikiName = pageInfo.getVirtualWikiName();
VirtualWiki virtualWiki = WikiBase.getDataHandler().lookupVirtualWiki(virtualWikiName);
topicName = virtualWiki.getRootTopicName();
}
String virtualWiki = pageInfo.getVirtualWikiName();
if (StringUtils.isBlank(virtualWiki)) {
virtualWiki = VirtualWiki.defaultVirtualWiki().getName();
}
Topic topic = ServletUtil.initializeTopic(virtualWiki, topicName);
if (topic.getTopicId() <= 0) {
// topic does not exist, return 404 and display empty page
response.setStatus(HttpServletResponse.SC_NOT_FOUND);
WikiMessage wikiMessage = new WikiMessage("topic.notcreated");
// topic name is escaped from WikiUtil.getTopicFromURI, so do not double-escape
wikiMessage.setParamsWithoutEscaping(new String[] {topicName});
next.addObject("notopic", wikiMessage);
}
WikiMessage pageTitle = new WikiMessage("topic.title", topicName);
ServletUtil.viewTopic(request, next, pageInfo, pageTitle, topic, true, true);
}
/**
* Examine the request object, and see if the requested topic or page matches a given value.
*
* @param request The servlet request object.
* @param value The value to match against the current topic or page name.
* @return <code>true</code> if the value matches the current topic or page name, <code>false
* </code> otherwise.
*/
protected static boolean isTopic(HttpServletRequest request, String value) {
try {
String topic = WikiUtil.getTopicFromURI(request);
if (!StringUtils.hasText(topic)) {
return false;
}
if (value != null && topic.equals(value)) {
return true;
}
} catch (Exception e) {
}
return false;
}
private ModelAndView loginRequired(HttpServletRequest request, WikiPageInfo pageInfo)
throws Exception {
String topicName = WikiUtil.getTopicFromRequest(request);
String virtualWiki = pageInfo.getVirtualWikiName();
WikiUserDetailsImpl user = ServletUtil.currentUserDetails();
if (ServletUtil.isEditable(virtualWiki, topicName, user)) {
return null;
}
if (!user.hasRole(Role.ROLE_EDIT_EXISTING)) {
WikiMessage messageObject = new WikiMessage("login.message.edit");
return ServletUtil.viewLogin(
request, pageInfo, WikiUtil.getTopicFromURI(request), messageObject);
}
if (!user.hasRole(Role.ROLE_EDIT_NEW)
&& WikiBase.getDataHandler().lookupTopic(virtualWiki, topicName, false, null) == null) {
WikiMessage messageObject = new WikiMessage("login.message.editnew");
return ServletUtil.viewLogin(
request, pageInfo, WikiUtil.getTopicFromURI(request), messageObject);
}
Topic topic = WikiBase.getDataHandler().lookupTopic(virtualWiki, topicName, false, null);
if (topic == null) {
// this should never trigger, but better safe than sorry...
return null;
}
if (topic.getAdminOnly()) {
WikiMessage messageObject = new WikiMessage("login.message.editadmin", topicName);
return ServletUtil.viewLogin(
request, pageInfo, WikiUtil.getTopicFromURI(request), messageObject);
}
if (topic.getReadOnly()) {
throw new WikiException(new WikiMessage("error.readonly"));
}
// it should be impossible to get here...
throw new WikiException(
new WikiMessage("error.unknown", "Unable to determine topic editing permissions"));
}
/**
* This method ensures that values required for rendering a JSP page have been loaded into the
* ModelAndView object. Examples of values that may be handled by this method include topic name,
* username, etc.
*
* @param request The current servlet request object.
* @param next The current ModelAndView object.
* @param pageInfo The current WikiPageInfo object, containing basic page rendering information.
*/
protected static void loadDefaults(
HttpServletRequest request, ModelAndView next, WikiPageInfo pageInfo) throws Exception {
if (next.getViewName() != null
&& next.getViewName().startsWith(ServletUtil.SPRING_REDIRECT_PREFIX)) {
// if this is a redirect, no need to load anything
return;
}
// load cached top area, nav bar, etc.
ServletUtil.buildLayout(request, next);
if (!StringUtils.hasText(pageInfo.getTopicName())) {
pageInfo.setTopicName(WikiUtil.getTopicFromURI(request));
}
pageInfo.setUserMenu(ServletUtil.buildUserMenu());
pageInfo.setTabMenu(ServletUtil.buildTabMenu(request, pageInfo));
next.addObject(ServletUtil.PARAMETER_PAGE_INFO, pageInfo);
}