/**
* Creates a deep clone of a WikiPage. Strings are not cloned, since they're immutable. Attributes
* are not cloned, only the internal HashMap (so if you modify the contents of a value of an
* attribute, these will reflect back to everyone).
*
* @return A deep clone of the WikiPage
*/
public Object clone() {
WikiPage p = new WikiPage(m_engine, m_name);
p.m_wiki = m_wiki;
p.m_author = m_author;
p.m_version = m_version;
p.m_lastModified = m_lastModified != null ? (Date) m_lastModified.clone() : null;
p.m_fileSize = m_fileSize;
for (Map.Entry<String, Object> entry : m_attributes.entrySet()) {
p.m_attributes.put(entry.getKey(), entry.getValue());
}
if (m_accessList != null) {
p.m_accessList = new AclImpl();
for (Enumeration entries = m_accessList.entries(); entries.hasMoreElements(); ) {
AclEntry e = (AclEntry) entries.nextElement();
p.m_accessList.addEntry(e);
}
}
return p;
}
public final int doWikiStartTag() throws IOException {
WikiEngine engine = m_wikiContext.getEngine();
WikiPage page = m_wikiContext.getPage();
try {
if (page != null) {
long size = page.getSize();
if (size == -1 && engine.pageExists(page)) // should never happen
// with attachments
{
size = engine.getPureText(page.getName(), page.getVersion()).length();
page.setSize(size);
}
pageContext.getOut().write(Long.toString(size));
}
} catch (ProviderException e) {
log.warn("Providers did not work: ", e);
pageContext.getOut().write("Error determining page size: " + e.getMessage());
}
return SKIP_BODY;
}
private Set<String> getReferencesToChange(WikiPage fromPage, WikiEngine engine) {
Set<String> referrers = new TreeSet<String>();
Collection<String> r = engine.getReferenceManager().findReferrers(fromPage.getName());
if (r != null) referrers.addAll(r);
try {
Collection<Attachment> attachments = engine.getAttachmentManager().listAttachments(fromPage);
for (Attachment att : attachments) {
Collection<String> c = engine.getReferenceManager().findReferrers(att.getName());
if (c != null) referrers.addAll(c);
}
} catch (ProviderException e) {
// We will continue despite this error
log.error("Provider error while fetching attachments for rename", e);
}
return referrers;
}
protected void exportPage(WikiEngine engine, WikiPage p) throws IOException, ProviderException {
String name = p.getName();
String title = name;
boolean isAttachment = p instanceof Attachment;
title = generateTitle(name, title, isAttachment);
exportPageHeader(p.getName(), p.getWiki(), p.getAuthor(), p.getLastModified(), isAttachment);
Map<String, Object> attrMap = p.getAttributes();
exportAttributes(attrMap);
//
// ACLs
//
Acl acl = p.getAcl();
exportAcl(acl);
//
// Export page content
//
exportProperty("wiki:content", engine.getPureText(p), STRING);
//
// Finally, list attachment. According to JCR rules, these must be last.
//
/*
Collection<Attachment> atts = m_engine.getAttachmentManager().listAttachments( p );
for( Attachment a : atts )
{
exportPage( a );
}
*/
exportPageFooter();
}
/**
* Filters a collection according to the include and exclude parameters.
*
* @param c The collection to filter.
* @return A filtered collection.
*/
protected Collection filterCollection(Collection c) {
ArrayList<Object> result = new ArrayList<Object>();
PatternMatcher pm = new Perl5Matcher();
for (Iterator i = c.iterator(); i.hasNext(); ) {
String pageName = null;
Object objectje = i.next();
if (objectje instanceof WikiPage) {
pageName = ((WikiPage) objectje).getName();
} else {
pageName = (String) objectje;
}
//
// If include parameter exists, then by default we include only those
// pages in it (excluding the ones in the exclude pattern list).
//
// include='*' means the same as no include.
//
boolean includeThis = m_include == null;
if (m_include != null) {
for (int j = 0; j < m_include.length; j++) {
if (pm.matches(pageName, m_include[j])) {
includeThis = true;
break;
}
}
}
if (m_exclude != null) {
for (int j = 0; j < m_exclude.length; j++) {
if (pm.matches(pageName, m_exclude[j])) {
includeThis = false;
break; // The inner loop, continue on the next item
}
}
}
if (includeThis) {
if (objectje instanceof WikiPage) {
result.add(objectje);
} else {
result.add(pageName);
}
//
// if we want to show the last modified date of the most recently change page, we keep a
// "high watermark" here:
WikiPage page = null;
if (m_lastModified) {
page = m_engine.getPage(pageName);
if (page != null) {
Date lastModPage = page.getLastModified();
if (log.isDebugEnabled()) {
log.debug("lastModified Date of page " + pageName + " : " + m_dateLastModified);
}
if (lastModPage.after(m_dateLastModified)) {
m_dateLastModified = lastModPage;
}
}
}
}
}
return result;
}
/**
* Count a page hit, present a pages' counter or output a list of pagecounts.
*
* @param context
* @param params
* @throws com.ecyrd.jspwiki.plugin.PluginException
* @return String Wiki page snippet
* @throws PluginException Malformed pattern parameter.
* @concurrency concurrent
*/
public String execute(WikiContext context, Map params) throws PluginException {
WikiEngine engine = context.getEngine();
WikiPage page = context.getPage();
String result = STR_EMPTY;
if (null != page) {
// get parameters
String pagename = page.getName();
String count = (String) params.get(PARAM_COUNT);
String show = (String) params.get(PARAM_SHOW);
int entries =
TextUtil.parseIntParameter((String) params.get(PARAM_MAX_ENTRIES), Integer.MAX_VALUE);
final int max =
TextUtil.parseIntParameter((String) params.get(PARAM_MAX_COUNT), Integer.MAX_VALUE);
final int min =
TextUtil.parseIntParameter((String) params.get(PARAM_MIN_COUNT), Integer.MIN_VALUE);
String sort = (String) params.get(PARAM_SORT);
String body = (String) params.get(PluginManager.PARAM_BODY);
Pattern[] exclude = compileGlobs(PARAM_EXCLUDE, (String) params.get(PARAM_EXCLUDE));
Pattern[] include = compileGlobs(PARAM_INCLUDE, (String) params.get(PARAM_INCLUDE));
Pattern[] refer = compileGlobs(PARAM_REFER, (String) params.get(PARAM_REFER));
PatternMatcher matcher =
(null != exclude || null != include || null != refer) ? new Perl5Matcher() : null;
boolean increment = false;
// increment counter?
if (STR_YES.equals(count)) {
increment = true;
} else {
count = null;
}
// default increment counter?
if ((null == show || STR_NONE.equals(show)) && null == count) {
increment = true;
}
// filter on referring pages?
Collection referrers = null;
if (null != refer) {
ReferenceManager refManager = engine.getReferenceManager();
Iterator iter = refManager.findCreated().iterator();
while (null != iter && iter.hasNext()) {
String name = (String) iter.next();
boolean use = false;
for (int n = 0; !use && n < refer.length; n++) {
use = matcher.matches(name, refer[n]);
}
if (use) {
Collection refs = engine.getReferenceManager().findReferrers(name);
if (null != refs && !refs.isEmpty()) {
if (null == referrers) {
referrers = new HashSet();
}
referrers.addAll(refs);
}
}
}
}
synchronized (this) {
Counter counter = (Counter) counters.get(pagename);
// only count in view mode, keep storage values in sync
if (increment && WikiContext.VIEW.equalsIgnoreCase(context.getRequestContext())) {
if (null == counter) {
counter = new Counter();
counters.put(pagename, counter);
}
counter.increment();
storage.setProperty(pagename, counter.toString());
dirty = true;
}
if (null == show || STR_NONE.equals(show)) {
// nothing to show
} else if (PARAM_COUNT.equals(show)) {
// show page count
result = counter.toString();
} else if (null != body && 0 < body.length() && STR_LIST.equals(show)) {
// show list of counts
String header = STR_EMPTY;
String line = body;
String footer = STR_EMPTY;
int start = body.indexOf(STR_SEPARATOR);
// split body into header, line, footer on ----
// separator
if (0 < start) {
header = body.substring(0, start);
start = skipWhitespace(start + STR_SEPARATOR.length(), body);
int end = body.indexOf(STR_SEPARATOR, start);
if (start >= end) {
line = body.substring(start);
} else {
line = body.substring(start, end);
end = skipWhitespace(end + STR_SEPARATOR.length(), body);
footer = body.substring(end);
}
}
// sort on name or count?
Map sorted = counters;
if (null != sort && PARAM_COUNT.equals(sort)) {
sorted = new TreeMap(compareCountDescending);
sorted.putAll(counters);
}
// build a messagebuffer with the list in wiki markup
StringBuffer buf = new StringBuffer(header);
MessageFormat fmt = new MessageFormat(line);
Object[] args = new Object[] {pagename, STR_EMPTY, STR_EMPTY};
Iterator iter = sorted.entrySet().iterator();
while (null != iter && 0 < entries && iter.hasNext()) {
Entry entry = (Entry) iter.next();
String name = (String) entry.getKey();
// check minimum count
final int value = ((Counter) entry.getValue()).getValue();
boolean use = min <= value && value <= max;
// did we specify a refer-to page?
if (use && null != referrers) {
use = referrers.contains(name);
}
// did we specify what pages to include?
if (use && null != include) {
use = false;
for (int n = 0; !use && n < include.length; n++) {
use = matcher.matches(name, include[n]);
}
}
// did we specify what pages to exclude?
if (use && null != exclude) {
for (int n = 0; use && n < exclude.length; n++) {
use &= !matcher.matches(name, exclude[n]);
}
}
if (use) {
args[1] = engine.beautifyTitle(name);
args[2] = entry.getValue();
fmt.format(args, buf, null);
entries--;
}
}
buf.append(footer);
// let the engine render the list
result = engine.textToHTML(context, buf.toString());
}
}
}
return result;
}
/**
* Renames a page.
*
* @param context The current context.
* @param renameFrom The name from which to rename.
* @param renameTo The new name.
* @param changeReferrers If true, also changes all the referrers.
* @return The final new name (in case it had to be modified)
* @throws WikiException If the page cannot be renamed.
*/
public String renamePage(
WikiContext context, String renameFrom, String renameTo, boolean changeReferrers)
throws WikiException {
//
// Sanity checks first
//
if (renameFrom == null || renameFrom.length() == 0) {
throw new WikiException("From name may not be null or empty");
}
if (renameTo == null || renameTo.length() == 0) {
throw new WikiException("To name may not be null or empty");
}
//
// Clean up the "to" -name so that it does not contain anything illegal
//
renameTo = MarkupParser.cleanLink(renameTo.trim());
if (renameTo.equals(renameFrom)) {
throw new WikiException("You cannot rename the page to itself");
}
//
// Preconditions: "from" page must exist, and "to" page must not yet exist.
//
WikiEngine engine = context.getEngine();
WikiPage fromPage = engine.getPage(renameFrom);
if (fromPage == null) {
throw new WikiException("No such page " + renameFrom);
}
WikiPage toPage = engine.getPage(renameTo);
if (toPage != null) {
throw new WikiException("Page already exists " + renameTo);
}
//
// Options
//
m_camelCase =
TextUtil.getBooleanProperty(
engine.getWikiProperties(), JSPWikiMarkupParser.PROP_CAMELCASELINKS, m_camelCase);
Set<String> referrers = getReferencesToChange(fromPage, engine);
//
// Do the actual rename by changing from the frompage to the topage, including
// all of the attachments
//
engine.getPageManager().getProvider().movePage(renameFrom, renameTo);
if (engine.getAttachmentManager().attachmentsEnabled()) {
engine
.getAttachmentManager()
.getCurrentProvider()
.moveAttachmentsForPage(renameFrom, renameTo);
}
//
// Add a comment to the page notifying what changed. This adds a new revision
// to the repo with no actual change.
//
toPage = engine.getPage(renameTo);
if (toPage == null)
throw new InternalWikiException(
"Rename seems to have failed for some strange reason - please check logs!");
toPage.setAttribute(WikiPage.CHANGENOTE, fromPage.getName() + " ==> " + toPage.getName());
toPage.setAuthor(context.getCurrentUser().getName());
engine.getPageManager().putPageText(toPage, engine.getPureText(toPage));
//
// Update the references
//
engine.getReferenceManager().pageRemoved(fromPage);
engine.updateReferences(toPage);
//
// Update referrers
//
if (changeReferrers) {
updateReferrers(context, fromPage, toPage, referrers);
}
//
// re-index the page
//
engine.getSearchManager().reindexPage(toPage);
Collection<Attachment> attachments = engine.getAttachmentManager().listAttachments(toPage);
for (Attachment att : attachments) {
engine.getSearchManager().reindexPage(att);
}
//
// Done, return the new name.
//
return renameTo;
}
/**
* This method finds all the pages which have anything to do with the fromPage and change any
* referrers it can figure out in that page.
*
* @param context WikiContext in which we operate
* @param fromPage The old page
* @param toPage The new page
*/
@SuppressWarnings("unchecked")
private void updateReferrers(
WikiContext context, WikiPage fromPage, WikiPage toPage, Set<String> referrers) {
WikiEngine engine = context.getEngine();
if (referrers.isEmpty()) return; // No referrers
for (String pageName : referrers) {
// In case the page was just changed from under us, let's do this
// small kludge.
if (pageName.equals(fromPage.getName())) {
pageName = toPage.getName();
}
WikiPage p = engine.getPage(pageName);
String sourceText = engine.getPureText(p);
String newText =
replaceReferrerString(context, sourceText, fromPage.getName(), toPage.getName());
if (m_camelCase)
newText = replaceCCReferrerString(context, newText, fromPage.getName(), toPage.getName());
if (!sourceText.equals(newText)) {
p.setAttribute(WikiPage.CHANGENOTE, fromPage.getName() + " ==> " + toPage.getName());
p.setAuthor(context.getCurrentUser().getName());
try {
engine.getPageManager().putPageText(p, newText);
engine.updateReferences(p);
} catch (ProviderException e) {
//
// We fail with an error, but we will try to continue to rename
// other referrers as well.
//
log.error("Unable to perform rename.", e);
}
}
}
}
