[patch] proxyTransformer version 1

proxyTransformer.diff (text/plain), 8.88 KB, created by Thorsten Scherler on 2007-05-22 07:46:34 UTC

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Description: proxyTransformer version 1

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Creator: Thorsten Scherler

Created: 2007-05-22 07:46:34 UTC

Size: 8.88 KB

patch

obsolete

>Index: src/modules-core/linking/java/src/org/apache/lenya/cms/cocoon/transformation/ProxyTransformer.java >=================================================================== >--- src/modules-core/linking/java/src/org/apache/lenya/cms/cocoon/transformation/ProxyTransformer.java (revision 0) >+++ src/modules-core/linking/java/src/org/apache/lenya/cms/cocoon/transformation/ProxyTransformer.java (revision 0) >@@ -0,0 +1,203 @@ >+package org.apache.lenya.cms.cocoon.transformation; >+ >+import java.io.IOException; >+import java.util.Arrays; >+import java.util.Map; >+ >+import org.apache.avalon.framework.parameters.Parameters; >+import org.apache.avalon.framework.service.ServiceSelector; >+import org.apache.cocoon.ProcessingException; >+import org.apache.cocoon.environment.ObjectModelHelper; >+import org.apache.cocoon.environment.Request; >+import org.apache.cocoon.environment.SourceResolver; >+import org.apache.cocoon.transformation.AbstractSAXTransformer; >+import org.apache.lenya.ac.AccessControlException; >+import org.apache.lenya.ac.AccessController; >+import org.apache.lenya.ac.AccessControllerResolver; >+import org.apache.lenya.ac.AccreditableManager; >+import org.apache.lenya.ac.Policy; >+import org.apache.lenya.ac.PolicyManager; >+import org.apache.lenya.cms.publication.DocumentBuildException; >+import org.apache.lenya.cms.publication.DocumentFactory; >+import org.apache.lenya.cms.publication.DocumentUtil; >+import org.apache.lenya.cms.publication.Proxy; >+import org.apache.lenya.cms.publication.Publication; >+import org.apache.lenya.cms.publication.PublicationUtil; >+import org.apache.lenya.cms.repository.RepositoryUtil; >+import org.apache.lenya.cms.repository.Session; >+import org.apache.lenya.util.ServletHelper; >+import org.xml.sax.Attributes; >+import org.xml.sax.SAXException; >+import org.xml.sax.helpers.AttributesImpl; >+ >+public class ProxyTransformer extends AbstractSAXTransformer { >+ protected static final String[] elementNames = { "a", "object", "img", >+ "link", "form" }; >+ >+ protected static final String[] attributeNames = { "href", "src", "data", >+ "action" }; >+ >+ private boolean ignoreLinkElement = false; >+ >+ private String indent = ""; >+ >+ private DocumentFactory factory; >+ >+ private Publication publication; >+ >+ private String url; >+ >+ private ServiceSelector serviceSelector; >+ >+ private AccessControllerResolver acResolver; >+ >+ private AccreditableManager accreditableManager; >+ >+ private PolicyManager policyManager; >+ >+ protected static final String PARAMETER_FACTORY = "private.factory"; >+ >+ public void setup(SourceResolver _resolver, Map _objectModel, String _source, >+ Parameters _parameters) throws ProcessingException, SAXException, >+ IOException { >+ super.setup(_resolver, _objectModel, _source, _parameters); >+ Request _request = ObjectModelHelper.getRequest(_objectModel); >+ >+ try { >+ Session session = RepositoryUtil.getSession(this.manager, _request); >+ this.factory = DocumentUtil.createDocumentFactory(this.manager, session); >+ this.url = ServletHelper.getWebappURI(_request); >+ this.publication = PublicationUtil.getPublicationFromUrl(this.manager, >+ factory, url); >+ } catch (final Exception e) { >+ throw new RuntimeException(e); >+ } >+ this.serviceSelector = null; >+ try { >+ this.serviceSelector = (ServiceSelector) this.manager >+ .lookup(AccessControllerResolver.ROLE + "Selector"); >+ this.acResolver = (AccessControllerResolver) this.serviceSelector >+ .select(AccessControllerResolver.DEFAULT_RESOLVER); >+ AccessController accessController = this.acResolver >+ .resolveAccessController(url); >+ this.accreditableManager = accessController.getAccreditableManager(); >+ this.policyManager = accessController.getPolicyManager(); >+ } catch (final Exception e) { >+ throw new RuntimeException(e); >+ } >+ >+ } >+ >+ public void startElement(String uri, String name, String qname, >+ Attributes attrs) throws SAXException { >+ if (getLogger().isDebugEnabled()) { >+ getLogger().debug( >+ this.indent + "<" + qname + "> (ignoreAElement = " >+ + this.ignoreLinkElement + ")"); >+ this.indent += " "; >+ } >+ AttributesImpl newAttrs = null; >+ if (lookingAtLinkElement(name)) { >+ >+ for (int i = 0; i < attributeNames.length; i++) { >+ String linkUrl = attrs.getValue(attributeNames[i]); >+ if (linkUrl != null) { >+ if (linkUrl.startsWith("/")) { >+ try { >+ newAttrs = new AttributesImpl(attrs); >+ rewriteLink(newAttrs, attributeNames[i], linkUrl); >+ if (getLogger().isDebugEnabled()) { >+ getLogger().debug(this.indent + "link URL: [" + linkUrl + "]"); >+ } >+ } catch (final Exception e) { >+ getLogger().error("startElement failed: ", e); >+ throw new SAXException(e); >+ } >+ } >+ } >+ } >+ if (newAttrs == null) >+ super.startElement(uri, name, qname, attrs); >+ else >+ super.startElement(uri, name, qname, newAttrs); >+ } else >+ super.startElement(uri, name, qname, attrs); >+ >+ } >+ >+ public void endElement(String uri, String name, String qname) >+ throws SAXException { >+ if (getLogger().isDebugEnabled()) { >+ this.indent = this.indent.substring(2); >+ getLogger().debug(this.indent + "</" + qname + ">"); >+ } >+ if (getLogger().isDebugEnabled()) { >+ getLogger().debug(this.indent + "</" + qname + "> sent"); >+ } >+ super.endElement(uri, name, qname); >+ } >+ >+ private void rewriteLink(AttributesImpl newAttrs, String attributeName, >+ String linkUrl) throws AccessControlException, DocumentBuildException { >+ String rewrittenURL = ""; >+ Policy policy; >+ policy = this.policyManager.getPolicy(this.accreditableManager, linkUrl); >+ String area = ""; >+ try { >+ area = factory.getFromURL(linkUrl).getArea(); >+ } catch (RuntimeException e) { >+ getLogger().warn("global link"); >+ } >+ if (PublicationUtil.isValidArea(area)) { >+ Proxy proxy = this.publication.getProxy(area, policy.isSSLProtected()); >+ if (proxy == null) { >+ rewrittenURL = this.request.getContextPath() + linkUrl; >+ } else { >+ String prefix = "/" + publication.getId() + "/" + area; >+ if (linkUrl.startsWith(prefix)) >+ rewrittenURL = proxy.getUrl() + linkUrl.substring(prefix.length()); >+ else >+ rewrittenURL = proxy.getUrl() + linkUrl; >+ } >+ if (getLogger().isDebugEnabled()) { >+ getLogger().debug( >+ this.indent + "SSL protection: [" + policy.isSSLProtected() + "]"); >+ getLogger().debug(this.indent + "Resolved proxy: [" + proxy + "]"); >+ } >+ >+ if (getLogger().isDebugEnabled()) { >+ getLogger().debug( >+ this.indent + "Rewriting URL to: [" + rewrittenURL + "]"); >+ } >+ } else { >+ rewrittenURL = linkUrl; >+ getLogger().warn("URL [" + rewrittenURL + "] could not be rewritten."); >+ >+ } >+ setAttribute(newAttrs, attributeName, rewrittenURL); >+ } >+ >+ private boolean lookingAtLinkElement(String name) { >+ return Arrays.asList(elementNames).contains(name); >+ } >+ >+ /** >+ * Sets the value of the href attribute. >+ * >+ * @param attr >+ * The attributes. >+ * @param name >+ * The attribute name. >+ * @param value >+ * The value. >+ * @throws IllegalArgumentException >+ * if the href attribute is not contained in this attributes. >+ */ >+ protected void setAttribute(AttributesImpl attr, String name, String value) { >+ int position = attr.getIndex(name); >+ if (position == -1) { >+ throw new IllegalArgumentException("The href attribute is not available!"); >+ } >+ attr.setValue(position, value); >+ } >+} >Index: src/pubs/default/sitemap.xmap >=================================================================== >--- src/pubs/default/sitemap.xmap (revision 537897) >+++ src/pubs/default/sitemap.xmap (working copy) >@@ -23,6 +23,7 @@ > <map:components> > <map:transformers default="xslt"> > <map:transformer name="metaData" logger="lenya.sitemap.transformer.metaData" src="org.apache.lenya.cms.cocoon.transformation.MetaDataTransformer"/> >+ <map:transformer name="proxy" logger="lenya.sitemap.transformer.proxy" src="org.apache.lenya.cms.cocoon.transformation.ProxyTransformer"/> > </map:transformers> > <map:serializers default="xhtml"> > <map:serializer logger="sitemap.serializer.links" name="links" src="org.apache.lenya.cms.cocoon.serialization.LinkSerializer"/> >@@ -311,6 +312,7 @@ > </map:select> > <!-- pretty-print output for easier debugging and for the benefit of new users --> > <map:transform src="fallback://lenya/modules/prettyprinting/xslt/xml2nicexml.xsl"/> >+ <map:transform type="proxy"/> > <map:serialize type="xhtml"/> > </map:otherwise> > </map:select> View Attachment As Diff View Attachment As Raw

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