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com.liferay.wiki.engine.impl.WikiEngineRenderer Maven / Gradle / Ivy
/**
* Copyright (c) 2000-present Liferay, Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the Free
* Software Foundation; either version 2.1 of the License, or (at your option)
* any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*/
package com.liferay.wiki.engine.impl;
import com.liferay.petra.string.StringPool;
import com.liferay.portal.kernel.diff.DiffHtmlUtil;
import com.liferay.portal.kernel.exception.PortalException;
import com.liferay.portal.kernel.io.unsync.UnsyncStringReader;
import com.liferay.portal.kernel.io.unsync.UnsyncStringWriter;
import com.liferay.portal.kernel.portlet.LiferayPortletURL;
import com.liferay.portal.kernel.portlet.PortletURLUtil;
import com.liferay.portal.kernel.theme.ThemeDisplay;
import com.liferay.portal.kernel.util.HtmlUtil;
import com.liferay.portal.kernel.util.ListUtil;
import com.liferay.portal.kernel.util.ParamUtil;
import com.liferay.portal.kernel.util.StringBundler;
import com.liferay.portal.kernel.util.StringUtil;
import com.liferay.portal.kernel.util.URLCodec;
import com.liferay.portal.kernel.util.WebKeys;
import com.liferay.taglib.servlet.PipingServletResponse;
import com.liferay.wiki.engine.WikiEngine;
import com.liferay.wiki.exception.PageContentException;
import com.liferay.wiki.exception.WikiFormatException;
import com.liferay.wiki.model.WikiNode;
import com.liferay.wiki.model.WikiPage;
import com.liferay.wiki.model.WikiPageDisplay;
import com.liferay.wiki.util.WikiCacheHelper;
import java.io.IOException;
import java.io.Writer;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Set;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import javax.portlet.PortletURL;
import javax.portlet.RenderRequest;
import javax.portlet.RenderResponse;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.jsp.PageContext;
import org.osgi.service.component.annotations.Component;
import org.osgi.service.component.annotations.Reference;
/**
* @author Brian Wing Shun Chan
* @author Jorge Ferrer
*/
@Component(immediate = true, service = WikiEngineRenderer.class)
public class WikiEngineRenderer {
public String convert(
WikiPage page, PortletURL viewPageURL, PortletURL editPageURL,
String attachmentURLPrefix)
throws PageContentException, WikiFormatException {
LiferayPortletURL liferayViewPageURL = (LiferayPortletURL)viewPageURL;
LiferayPortletURL liferayEditPageURL = (LiferayPortletURL)editPageURL;
WikiEngine wikiEngine = fetchWikiEngine(page.getFormat());
if (wikiEngine == null) {
_wikiCacheHelper.clearCache(page.getNodeId(), page.getTitle());
throw new WikiFormatException();
}
String content = wikiEngine.convert(
page, viewPageURL, editPageURL, attachmentURLPrefix);
String editPageURLString = StringPool.BLANK;
if (editPageURL != null) {
liferayEditPageURL.setParameter("title", "__REPLACEMENT__", false);
editPageURLString = editPageURL.toString();
editPageURLString = StringUtil.replace(
editPageURLString, "__REPLACEMENT__", "$1");
}
Matcher matcher = _editPageURLPattern.matcher(content);
content = _convertURLs(editPageURLString, matcher);
String viewPageURLString = StringPool.BLANK;
if (viewPageURL != null) {
liferayViewPageURL.setParameter("title", "__REPLACEMENT__", false);
viewPageURLString = viewPageURL.toString();
viewPageURLString = StringUtil.replace(
viewPageURLString, "__REPLACEMENT__", "$1");
}
matcher = _viewPageURLPattern.matcher(content);
content = _convertURLs(viewPageURLString, matcher);
content = _replaceAttachments(
content, page.getTitle(), attachmentURLPrefix);
return content;
}
public String diffHtml(
WikiPage sourcePage, WikiPage targetPage, PortletURL viewPageURL,
PortletURL editPageURL, String attachmentURLPrefix)
throws Exception {
String sourceContent = StringPool.BLANK;
String targetContent = StringPool.BLANK;
if (sourcePage != null) {
sourceContent = convert(
sourcePage, viewPageURL, editPageURL, attachmentURLPrefix);
}
if (targetPage != null) {
targetContent = convert(
targetPage, viewPageURL, editPageURL, attachmentURLPrefix);
}
return DiffHtmlUtil.diff(
new UnsyncStringReader(sourceContent),
new UnsyncStringReader(targetContent));
}
public WikiEngine fetchWikiEngine(String format) {
return _wikiEngineTracker.getWikiEngine(format);
}
public List filterOrphans(List pages)
throws PortalException {
List> pageTitles = new ArrayList<>();
for (WikiPage page : pages) {
pageTitles.add(_wikiCacheHelper.getOutgoingLinks(page, this));
}
Set notOrphans = new HashSet<>();
for (WikiPage page : pages) {
for (Map pageTitle : pageTitles) {
String pageTitleLowerCase = page.getTitle();
pageTitleLowerCase = StringUtil.toLowerCase(pageTitleLowerCase);
if (pageTitle.get(pageTitleLowerCase) != null) {
notOrphans.add(page);
break;
}
}
}
List orphans = new ArrayList<>();
for (WikiPage page : pages) {
if (!notOrphans.contains(page)) {
orphans.add(page);
}
}
orphans = ListUtil.sort(orphans);
return orphans;
}
public String getFormatLabel(String format, Locale locale) {
WikiEngine wikiEngine = fetchWikiEngine(format);
if (wikiEngine != null) {
return wikiEngine.getFormatLabel(locale);
}
return StringPool.BLANK;
}
public Collection getFormats() {
return _wikiEngineTracker.getFormats();
}
public String getFormattedContent(
RenderRequest renderRequest, RenderResponse renderResponse,
WikiPage page, PortletURL viewPageURL, PortletURL editPageURL,
String title, boolean preview)
throws Exception {
ThemeDisplay themeDisplay = (ThemeDisplay)renderRequest.getAttribute(
WebKeys.THEME_DISPLAY);
double version = ParamUtil.getDouble(renderRequest, "version");
PortletURL curViewPageURL = PortletURLUtil.clone(
viewPageURL, renderResponse);
PortletURL curEditPageURL = PortletURLUtil.clone(
editPageURL, renderResponse);
StringBundler sb = new StringBundler(8);
sb.append(themeDisplay.getPathMain());
sb.append("/wiki/get_page_attachment?p_l_id=");
sb.append(themeDisplay.getPlid());
sb.append("&nodeId=");
sb.append(page.getNodeId());
sb.append("&title=");
sb.append(URLCodec.encodeURL(page.getTitle()));
sb.append("&fileName=");
String attachmentURLPrefix = sb.toString();
if (!preview && (version == 0)) {
WikiPageDisplay pageDisplay = _wikiCacheHelper.getDisplay(
page.getNodeId(), title, curViewPageURL, curEditPageURL,
attachmentURLPrefix);
if (pageDisplay != null) {
return pageDisplay.getFormattedContent();
}
}
return convert(
page, curViewPageURL, curEditPageURL, attachmentURLPrefix);
}
public void renderEditPageHTML(
String format, PageContext pageContext, WikiNode node,
WikiPage page)
throws IOException, ServletException, WikiFormatException {
WikiEngine wikiEngine = _wikiEngineTracker.getWikiEngine(format);
if (wikiEngine == null) {
_wikiCacheHelper.clearCache(page.getNodeId(), page.getTitle());
throw new WikiFormatException();
}
HttpServletResponse response =
(HttpServletResponse)pageContext.getResponse();
UnsyncStringWriter unsyncStringWriter = new UnsyncStringWriter();
PipingServletResponse pipingServletResponse = new PipingServletResponse(
response, unsyncStringWriter);
wikiEngine.renderEditPage(
pageContext.getRequest(), pipingServletResponse, node, page);
Writer writer = pageContext.getOut();
StringBundler sb = unsyncStringWriter.getStringBundler();
writer.write(sb.toString());
}
@Reference(unbind = "-")
protected void setWikiCacheHelper(WikiCacheHelper wikiCacheHelper) {
_wikiCacheHelper = wikiCacheHelper;
}
@Reference(unbind = "-")
protected void setWikiEngineTracker(WikiEngineTracker wikiEngineTracker) {
_wikiEngineTracker = wikiEngineTracker;
}
private String _convertURLs(String url, Matcher matcher) {
StringBuffer sb = new StringBuffer();
while (matcher.find()) {
String replacement = null;
if (matcher.groupCount() >= 1) {
String encodedTitle = URLCodec.encodeURL(
HtmlUtil.unescape(matcher.group(1)));
replacement = url.replace("$1", encodedTitle);
}
else {
replacement = url;
}
matcher.appendReplacement(sb, replacement);
}
sb = matcher.appendTail(sb);
return sb.toString();
}
private String _replaceAttachments(
String content, String title, String attachmentURLPrefix) {
content = StringUtil.replace(content, "[$WIKI_PAGE_NAME$]", title);
content = StringUtil.replace(
content, "[$ATTACHMENT_URL_PREFIX$]", attachmentURLPrefix);
return content;
}
private static final Pattern _editPageURLPattern = Pattern.compile(
"\\[\\$BEGIN_PAGE_TITLE_EDIT\\$\\](.*?)" +
"\\[\\$END_PAGE_TITLE_EDIT\\$\\]");
private static final Pattern _viewPageURLPattern = Pattern.compile(
"\\[\\$BEGIN_PAGE_TITLE\\$\\](.*?)\\[\\$END_PAGE_TITLE\\$\\]");
private WikiCacheHelper _wikiCacheHelper;
private WikiEngineTracker _wikiEngineTracker;
}
