/**
* Build the HTML anchor link to a topic page for a given WikLink object.
*
* @param context The servlet context for the link that is being created.
* @param virtualWiki The virtual wiki for the link that is being created.
* @param wikiLink The WikiLink object containing all relevant information about the link being
* generated.
* @param text The text to display as the link content.
* @param style The CSS class to use with the anchor HTML tag. This value can be <code>null</code>
* or empty if no custom style is used.
* @param target The anchor link target, or <code>null</code> or empty if no target is needed.
* @param escapeHtml Set to <code>true</code> if the link caption should be HTML escaped. This
* value should be <code>true</code> in any case where the caption is not guaranteed to be
* free from potentially malicious HTML code.
* @return An HTML anchor link that matches the given input parameters.
* @throws DataAccessException Thrown if any error occurs while retrieving topic information.
*/
public static String buildInternalLinkHtml(
String context,
String virtualWiki,
WikiLink wikiLink,
String text,
String style,
String target,
boolean escapeHtml)
throws DataAccessException {
String url = LinkUtil.buildTopicUrl(context, virtualWiki, wikiLink);
String topic = wikiLink.getDestination();
if (StringUtils.isBlank(text)) {
text = topic;
}
if (!StringUtils.isBlank(topic) && StringUtils.isBlank(style)) {
if (!StringUtils.isEmpty(virtualWiki) && InterWikiHandler.isInterWiki(virtualWiki)) {
style = "interwiki";
} else if (!LinkUtil.isExistingArticle(virtualWiki, topic)) {
style = "edit";
}
}
if (!StringUtils.isBlank(style)) {
style = " class=\"" + style + "\"";
} else {
style = "";
}
if (!StringUtils.isBlank(target)) {
target = " target=\"" + target + "\"";
} else {
target = "";
}
if (StringUtils.isBlank(topic) && !StringUtils.isBlank(wikiLink.getSection())) {
topic = wikiLink.getSection();
}
StringBuffer html = new StringBuffer();
html.append("<a href=\"").append(url).append('\"').append(style);
html.append(" title=\"")
.append(StringEscapeUtils.escapeHtml(topic))
.append('\"')
.append(target)
.append('>');
if (escapeHtml) {
html.append(StringEscapeUtils.escapeHtml(text));
} else {
html.append(text);
}
html.append("</a>");
return html.toString();
}
/**
* Generate the HTML for an interwiki anchor link.
*
* @param wikiLink The WikiLink object containing all relevant information about the link being
* generated.
* @return The HTML anchor tag for the interwiki link.
*/
public static String interWiki(WikiLink wikiLink) {
// remove namespace from link destination
String destination = wikiLink.getDestination();
String namespace = wikiLink.getNamespace();
destination =
destination.substring(
wikiLink.getNamespace().length() + NamespaceHandler.NAMESPACE_SEPARATOR.length());
String url = InterWikiHandler.formatInterWiki(namespace, destination);
String text =
(!StringUtils.isBlank(wikiLink.getText())) ? wikiLink.getText() : wikiLink.getDestination();
return "<a class=\"interwiki\" rel=\"nofollow\" title=\""
+ text
+ "\" href=\""
+ url
+ "\">"
+ text
+ "</a>";
}
/**
* 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);
}
