/**
* Utility method for determining if an article name corresponds to a valid wiki link. In this
* case an "article name" could be an existing topic, a "Special:" page, a user page, an interwiki
* link, etc. This method will return true if the given name corresponds to a valid special page,
* user page, topic, or other existing article.
*
* @param virtualWiki The virtual wiki for the topic being checked.
* @param articleName The name of the article that is being checked.
* @return <code>true</code> if there is an article that exists for the given name and virtual
* wiki.
* @throws DataAccessException Thrown if an error occurs during lookup.
*/
public static boolean isExistingArticle(String virtualWiki, String articleName)
throws DataAccessException {
// if (StringUtils.isBlank(virtualWiki) || StringUtils.isBlank(articleName))
// {
if (StringUtils.isBlank(articleName)) {
return false;
}
if (PseudoTopicHandler.isPseudoTopic(articleName)) {
return true;
}
if (InterWikiHandler.isInterWiki(articleName)) {
return true;
}
// if
// (StringUtils.isBlank(Environment.getValue(Environment.PROP_BASE_FILE_DIR
// )) || !Environment.getBooleanValue(Environment.PROP_BASE_INITIALIZED)) {
// // not initialized yet
// return false;
// }
return (WikiBase.getDataHandler().lookupTopic(virtualWiki, articleName, false, null) != null);
}
/**
* Utility method for determining if a topic name is valid for use on the Wiki, meaning that it is
* not empty and does not contain any invalid characters.
*
* @param virtualWiki The current virtual wiki.
* @param name The topic name to validate.
* @throws WikiException Thrown if the user name is invalid.
*/
public static void validateTopicName(String virtualWiki, String name) throws WikiException {
if (StringUtils.isBlank(virtualWiki)) {
throw new WikiException(new WikiMessage("common.exception.novirtualwiki"));
}
if (StringUtils.isBlank(name)) {
throw new WikiException(new WikiMessage("common.exception.notopic"));
}
if (PseudoTopicHandler.isPseudoTopic(name)) {
throw new WikiException(new WikiMessage("common.exception.pseudotopic", name));
}
WikiLink wikiLink = LinkUtil.parseWikiLink(virtualWiki, name);
String article = StringUtils.trimToNull(wikiLink.getArticle());
if (StringUtils.startsWith(article, "/")) {
throw new WikiException(new WikiMessage("common.exception.name", name));
}
if (wikiLink.getNamespace().getId().equals(Namespace.SPECIAL_ID)) {
throw new WikiException(new WikiMessage("common.exception.name", name));
}
Matcher m = WikiUtil.INVALID_TOPIC_NAME_PATTERN.matcher(name);
if (m.find()) {
throw new WikiException(new WikiMessage("common.exception.name", name));
}
}