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WebParsingDeploymentProcessor.java
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WebParsingDeploymentProcessor.java
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/*
* JBoss, Home of Professional Open Source.
* Copyright 2017, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This 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 software 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.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.wildfly.extension.undertow.deployment;
import java.io.IOException;
import java.io.InputStream;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import org.jboss.as.ee.structure.DeploymentType;
import org.jboss.as.ee.structure.DeploymentTypeMarker;
import org.jboss.as.ee.structure.SpecDescriptorPropertyReplacement;
import org.jboss.as.server.deployment.Attachments;
import org.jboss.as.server.deployment.DeploymentPhaseContext;
import org.jboss.as.server.deployment.DeploymentUnit;
import org.jboss.as.server.deployment.DeploymentUnitProcessingException;
import org.jboss.as.server.deployment.DeploymentUnitProcessor;
import org.jboss.as.server.deployment.module.ResourceRoot;
import org.jboss.as.web.common.WarMetaData;
import org.jboss.metadata.parser.servlet.WebMetaDataParser;
import org.jboss.metadata.parser.util.MetaDataElementParser;
import org.jboss.metadata.parser.util.XMLResourceResolver;
import org.jboss.metadata.parser.util.XMLSchemaValidator;
import org.jboss.metadata.web.spec.WebMetaData;
import org.jboss.vfs.VirtualFile;
import org.wildfly.extension.undertow.logging.UndertowLogger;
import org.wildfly.security.manager.WildFlySecurityManager;
import org.xml.sax.SAXException;
/**
* @author Jean-Frederic Clere
* @author Thomas.Diesler@jboss.com
*/
public class WebParsingDeploymentProcessor implements DeploymentUnitProcessor {
private static final String WEB_XML = "WEB-INF/web.xml";
private final boolean schemaValidation;
public WebParsingDeploymentProcessor() {
String property = WildFlySecurityManager.getPropertyPrivileged(XMLSchemaValidator.PROPERTY_SCHEMA_VALIDATION, "false");
this.schemaValidation = Boolean.parseBoolean(property);
}
@Override
public void deploy(DeploymentPhaseContext phaseContext) throws DeploymentUnitProcessingException {
ClassLoader old = WildFlySecurityManager.getCurrentContextClassLoaderPrivileged();
try {
WildFlySecurityManager.setCurrentContextClassLoaderPrivileged(WebParsingDeploymentProcessor.class);
final DeploymentUnit deploymentUnit = phaseContext.getDeploymentUnit();
if (!DeploymentTypeMarker.isType(DeploymentType.WAR, deploymentUnit)) {
return; // Skip non web deployments
}
final ResourceRoot deploymentRoot = deploymentUnit.getAttachment(Attachments.DEPLOYMENT_ROOT);
final VirtualFile alternateDescriptor = deploymentRoot.getAttachment(org.jboss.as.ee.structure.Attachments.ALTERNATE_WEB_DEPLOYMENT_DESCRIPTOR);
// Locate the descriptor
final VirtualFile webXml;
if (alternateDescriptor != null) {
webXml = alternateDescriptor;
} else {
webXml = deploymentRoot.getRoot().getChild(WEB_XML);
}
final WarMetaData warMetaData = deploymentUnit.getAttachment(WarMetaData.ATTACHMENT_KEY);
assert warMetaData != null;
if (webXml.exists()) {
InputStream is = null;
try {
is = webXml.openStream();
final XMLInputFactory inputFactory = XMLInputFactory.newInstance();
MetaDataElementParser.DTDInfo dtdInfo = new MetaDataElementParser.DTDInfo();
inputFactory.setXMLResolver(dtdInfo);
final XMLStreamReader xmlReader = inputFactory.createXMLStreamReader(is);
WebMetaData webMetaData = WebMetaDataParser.parse(xmlReader, dtdInfo, SpecDescriptorPropertyReplacement.propertyReplacer(deploymentUnit));
if (schemaValidation && webMetaData.getSchemaLocation() != null) {
XMLSchemaValidator validator = new XMLSchemaValidator(new XMLResourceResolver());
InputStream xmlInput = webXml.openStream();
ClassLoader oldCl = Thread.currentThread().getContextClassLoader();
try {
Thread.currentThread().setContextClassLoader(WebMetaDataParser.class.getClassLoader());
if (webMetaData.is23())
validator.validate("-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN", xmlInput);
else if (webMetaData.is24())
validator.validate("http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd", xmlInput);
else if (webMetaData.is25())
validator.validate("http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd", xmlInput);
else if (webMetaData.is30())
validator.validate("http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd", xmlInput);
else if (webMetaData.is31())
validator.validate("http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd", xmlInput);
else if (webMetaData.getVersion() != null && webMetaData.getVersion().equals("4.0"))
validator.validate("http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd", xmlInput);
else if (webMetaData.getVersion() != null && webMetaData.getVersion().equals("5.0"))
validator.validate("https://jakarta.ee/xml/ns/jakartaee/web-app_5_0.xsd", xmlInput);
else if (webMetaData.getVersion() != null && webMetaData.getVersion().equals("6.0"))
validator.validate("https://jakarta.ee/xml/ns/jakartaee/web-app_6_0.xsd", xmlInput);
else
validator.validate("-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN", xmlInput);
} catch (SAXException e) {
throw new DeploymentUnitProcessingException("Failed to validate " + webXml, e);
} finally {
xmlInput.close();
Thread.currentThread().setContextClassLoader(oldCl);
}
}
warMetaData.setWebMetaData(webMetaData);
} catch (XMLStreamException e) {
Integer lineNumber = null;
Integer columnNumber = null;
if (e.getLocation() != null) {
lineNumber = e.getLocation().getLineNumber();
columnNumber = e.getLocation().getColumnNumber();
}
throw new DeploymentUnitProcessingException(UndertowLogger.ROOT_LOGGER.failToParseXMLDescriptor(webXml.toString(), lineNumber, columnNumber), e);
} catch (IOException e) {
throw new DeploymentUnitProcessingException(UndertowLogger.ROOT_LOGGER.failToParseXMLDescriptor(webXml.toString()), e);
} finally {
try {
if (is != null) {
is.close();
}
} catch (IOException e) {
// Ignore
}
}
}
} finally {
WildFlySecurityManager.setCurrentContextClassLoaderPrivileged(old);
}
}
}