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/*
* Copyright (c) 2022, 2023 Contributors to the Eclipse Foundation
* Copyright (c) 1997, 2021 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package com.sun.enterprise.deployment.io;
import com.sun.enterprise.deployment.node.J2EEDocumentBuilder;
import com.sun.enterprise.deployment.node.RootXMLNode;
import com.sun.enterprise.deployment.node.SaxParserHandler;
import com.sun.enterprise.deployment.node.SaxParserHandlerFactory;
import com.sun.enterprise.deployment.util.DOLUtils;
import com.sun.enterprise.util.LocalStringManagerImpl;
import com.sun.enterprise.util.io.FileUtils;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.List;
import java.util.logging.Level;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import org.glassfish.api.deployment.archive.ArchiveType;
import org.glassfish.api.deployment.archive.ReadableArchive;
import org.glassfish.deployment.common.Descriptor;
import org.w3c.dom.Document;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.SAXNotRecognizedException;
import org.xml.sax.SAXParseException;
import static com.sun.enterprise.deployment.util.DOLUtils.INVALILD_DESCRIPTOR_SHORT;
/**
* This abstract class defines common behaviour for classes responsible
* for loading/saving XML deployment descriptors
*
* @param Deployment {@link Descriptor} type.
*
* @author Jerome Dochez
*/
public abstract class DeploymentDescriptorFile {
private static final String JAXP_SCHEMA_LANGUAGE = "http://java.sun.com/xml/jaxp/properties/schemaLanguage";
private static final String FULL_VALIDATION = "full";
private static final String PARSING_VALIDATION = "parsing";
// should we validate the XML ?
private boolean xmlValidation = true;
// error reporting level
private String validationLevel = PARSING_VALIDATION;
// error reporting string, used for xml validation error
private String errorReportingString;
// for i18N
private static final LocalStringManagerImpl I18N = new LocalStringManagerImpl(DeploymentDescriptorFile.class);
private ArchiveType archiveType;
/** Creates a new instance of DeploymentDescriptorFile */
public DeploymentDescriptorFile() {
}
/**
* @return a non validating SAX Parser to read an XML file (containing
* Deployment Descriptors) into DOL descriptors
*/
public SAXParser getSAXParser() {
return getSAXParser(false);
}
/**
* @return a SAX Parser to read an XML file (containing
* Deployment Descriptors) into DOL descriptors
* @param validating true if the parser should excercise DTD validation
*/
public SAXParser getSAXParser(boolean validating) {
// always use system SAXParser to parse DDs, see IT 8229
ClassLoader currentLoader = Thread.currentThread().getContextClassLoader();
Thread.currentThread().setContextClassLoader(getClass().getClassLoader());
try {
SAXParserFactory spf = SAXParserFactory.newInstance();
// set the namespace awareness
spf.setNamespaceAware(true);
// turn validation on for deployment descriptor XML files
spf.setValidating(validating);
// this feature is needed for backward compat with old DDs
// constructed by J2EE1.2 which used Java encoding names
// such as ISO8859_1 etc.
// this is a hack for a few days so people can continue runnning
// with crimson
if (spf.getClass().getName().indexOf("xerces")!=-1) {
spf.setFeature("http://apache.org/xml/features/allow-java-encodings", true);
} else {
DOLUtils.getDefaultLogger().log(Level.WARNING, "SAXParserFactory should be xerces, but was not.");
}
try {
if (!validating) {
// if we are not validating, let's not load the DTD
if (getDeploymentDescriptorPath().indexOf(DescriptorConstants.WLS) != -1) {
// and let's only turn it off for weblogic*.xml for now
spf.setFeature("http://apache.org/xml/features/nonvalidating/load-external-dtd", false);
}
}
// Validation part 2a: set the schema language if necessary
spf.setFeature("http://apache.org/xml/features/validation/schema",validating);
SAXParser sp = spf.newSAXParser();
// put the default schema for this deployment file type
String path = getDefaultSchemaSource();
if (path != null) {
sp.setProperty("http://apache.org/xml/properties/schema/external-schemaLocation",path);
}
// Set Xerces feature to allow dynamic validation. This prevents
// SAX errors from being reported when no schemaLocation attr
// is seen for a DTD based (J2EE1.3) XML descriptor.
sp.getXMLReader().setFeature("http://apache.org/xml/features/validation/dynamic", validating);
return sp;
} catch (SAXNotRecognizedException x) {
// This can happen if the parser does not support JAXP 1.2
DOLUtils.getDefaultLogger().log(Level.SEVERE,
"INFO: JAXP SAXParser property not recognized: " + JAXP_SCHEMA_LANGUAGE);
DOLUtils.getDefaultLogger().log(Level.SEVERE, "Check to see if parser conforms to JAXP 1.2 spec.");
}
} catch (Exception e) {
DOLUtils.getDefaultLogger().log(Level.SEVERE, INVALILD_DESCRIPTOR_SHORT, e.getMessage());
DOLUtils.getDefaultLogger().log(Level.WARNING, "Error occurred", e);
} finally {
Thread.currentThread().setContextClassLoader(currentLoader);
}
return null;
}
/**
* @return a DOM parser to read XML File into a DOM tree
*
* @param validating true if validation should happen
*/
public DocumentBuilder getDocumentBuilder(boolean validating) {
try {
DocumentBuilderFactory dbf = DocumentBuilderFactory.newDefaultInstance();
// set the namespace awareness
dbf.setNamespaceAware(true);
// turn validation on for deployment descriptor XML files
dbf.setValidating(validating);
// Validation part 2a: set the schema language if necessary
try {
// put the default schema for this deployment file type
String path = getDefaultSchemaSource();
if (path!=null) {
dbf.setAttribute("http://apache.org/xml/properties/schema/external-schemaLocation",path);
}
return dbf.newDocumentBuilder();
} catch (ParserConfigurationException x) {
// This can happen if the parser does not support JAXP 1.2
DOLUtils.getDefaultLogger().log(Level.SEVERE,
"Error: JAXP DOMParser property not recognized: " + JAXP_SCHEMA_LANGUAGE);
DOLUtils.getDefaultLogger().log(Level.SEVERE, "Check to see if parser conforms to JAXP 1.2 spec.");
}
} catch (Exception e) {
DOLUtils.getDefaultLogger().log(Level.SEVERE, INVALILD_DESCRIPTOR_SHORT, e.getMessage());
DOLUtils.getDefaultLogger().log(Level.WARNING, "Error occurred", e);
}
return null;
}
/**
* read and parse a Jakarta EE Deployment Descriptor input file and
* return the constructed DOL descriptors for the Jakarta EE Module
*
* @param is the input stream for the XML file
* @return the DOL descriptor for the Jakarta EE Module
*/
public T read(InputStream is) throws IOException, SAXException {
return read(null, is);
}
/**
* read and parse a Jakarta EE Deployment Descriptor input file and
* return the constructed DOL descriptors for the Jakarta EE Module
*
* @param descriptor the read is incremental, the descriptor to apply the DDs to
* @param in the input stream for the XML file
* @return the DOL descriptor for the Jakarta EE Module
*/
public T read(T descriptor, File in) throws IOException, SAXException {
FileInputStream fis = new FileInputStream(in);
try {
return read(descriptor, fis);
} finally {
fis.close();
}
}
/**
* read and parse a Jakarta EE Deployment Descriptor input file and
* return the constructed DOL descriptors for the Jakarta EE Module
*
* @param descriptor the read is incremental, the descriptor to apply the DDs to
* @param in the input archive abstraction for the XML file
* @return the DOL descriptor for the Jakarta EE Module
*/
public T read(T descriptor, ReadableArchive in) throws IOException, SAXException {
InputStream is = in.getEntry(getDeploymentDescriptorPath());
try {
return read(descriptor, is);
} finally {
is.close();
}
}
/**
* read and parse a Jakarta EE Deployment Descriptor input file and
* return the constructed DOL descriptors for the Jakarta EE Module
*
* @param descriptor if the read is incremental, the descriptor to apply the DDs to
* @param is the input stream for the XML file
* @return the DOL descriptor for the Jakarta EE Module
*/
@SuppressWarnings("unchecked")
public T read(T descriptor, InputStream is) throws IOException, SAXException {
errorReportingString = FileUtils.revertFriendlyFilenameExtension(errorReportingString);
String error = (errorReportingString == null)? errorReportingString:new File(errorReportingString).getName();
String errorReporting = I18N.getLocalString(
"enterprise.deployment.io.errorcontext",
"archive {0} and deployment descriptor file {1}",
error, getDeploymentDescriptorPath());
SAXParser sp = getSAXParser(getXMLValidation());
SaxParserHandler dh = SaxParserHandlerFactory.newInstance();
if (validationLevel.equals(FULL_VALIDATION)) {
dh.setStopOnError(true);
}
if (descriptor != null) {
dh.setTopNode(getRootXMLNode(descriptor));
}
dh.setErrorReportingString(errorReporting);
InputSource input =new InputSource(is);
try {
sp.parse(input,dh);
} catch(SAXParseException e) {
DOLUtils.getDefaultLogger().log(Level.SEVERE, INVALILD_DESCRIPTOR_SHORT, e.getMessage());
errorReporting += " " + e.getLocalizedMessage();
SAXParseException spe = new SAXParseException(errorReporting,
e.getSystemId(),
e.getPublicId(),
e.getLineNumber(),
e.getColumnNumber(),
e);
throw spe;
} catch(SAXException e) {
DOLUtils.getDefaultLogger().log(Level.SEVERE, INVALILD_DESCRIPTOR_SHORT, e.getMessage());
DOLUtils.getDefaultLogger().log(Level.SEVERE, "Error occurred", e);
throw e;
} catch (IOException e) {
DOLUtils.getDefaultLogger().log(Level.SEVERE, INVALILD_DESCRIPTOR_SHORT, e.getMessage());
// Let's check if the root cause of this IOException is failing to
// connect. If yes, it means two things:
// 1. The public id declared is not one of the pre-defined ones.
// So we need to ask user the check for typo.
// 2. If the user does intend to use the system id to go outside.
// We need to ask them to check whether they have proper
// access to the internet (proxy setting etc).
for (StackTraceElement stElement : e.getStackTrace()) {
if (stElement.getClassName().equals("java.net.Socket") &&
stElement.getMethodName().equals("connect")) {
String msg = I18N.getLocalString(
"enterprise.deployment.can_not_locate_dtd",
"Unable to locate the DTD to validate your deployment descriptor file [{1}] in archive [{0}]. "
+ "Please make sure the DOCTYPE is correct (no typo in public ID or system ID) and you have proper access to the Internet.",
error, getDeploymentDescriptorPath());
IOException ioe = new IOException(msg);
ioe.initCause(e);
throw ioe;
}
}
IOException ioe = new IOException(I18N.getLocalString(
"enterprise.deployment.backend.error_parsing_descr",
"Error parsing descriptor: {0}", errorReporting));
ioe.initCause(e);
throw ioe;
}
if (dh.getTopNode()!=null) {
return ((RootXMLNode) dh.getTopNode()).getDescriptor();
}
return null;
}
/**
* @return a Document for the passed descriptor
* @param descriptor
*/
public Document getDocument(T descriptor) {
return J2EEDocumentBuilder.getDocument(descriptor, getRootXMLNode(descriptor));
}
/**
* writes the descriptor to an output stream
*
* @param descriptor the descriptor
* @param os the output stream
*/
public void write(T descriptor, OutputStream os) throws IOException {
try {
J2EEDocumentBuilder.write(descriptor, getRootXMLNode(descriptor), os);
} catch(IOException ioe) {
throw ioe;
} catch(Exception e) {
IOException ioe = new IOException(e.getMessage());
ioe.initCause(e);
throw ioe;
}
}
/**
* writes the descriptor classes into a new XML file
*
* @param descriptor the DOL descriptor to write
* @param path the file to use
*/
public void write(T descriptor, String path) throws IOException {
String dir;
String fileName = getDeploymentDescriptorPath();
if (fileName.lastIndexOf('/')!=-1) {
dir = path + File.separator + fileName.substring(0, fileName.lastIndexOf('/'));
fileName = fileName.substring(fileName.lastIndexOf('/')+1);
} else {
dir = path;
}
File dirs = new File(dir.replace('/', File.separatorChar));
if (!dirs.exists()) {
boolean ok = dirs.mkdirs();
if (!ok) {
throw new IOException(dirs.getAbsolutePath() + " not created");
}
}
File out = new File(dirs, fileName);
write(descriptor, out);
}
/**
* writes the descriptor classes into a new XML file
*
* @param descriptor the DOL descriptor to write
* @param out the file to use
*/
public void write(T descriptor, File out) throws IOException {
FileOutputStream fos = new FileOutputStream(out);
try {
write(descriptor, fos );
} catch(Exception e) {
IOException ioe = new IOException(e.getMessage());
ioe.initCause(e);
throw ioe;
} finally {
fos.close();
}
}
/**
* @return the location of the deployment descriptor file for a
* particular type of Jakarta EE Archive
*/
public abstract String getDeploymentDescriptorPath();
/**
* @return a RootXMLNode responsible for handling the deployment
* descriptors associated with this Jakarta EE module
*
* @param descriptor the descriptor for which we need the node
*/
public abstract RootXMLNode getRootXMLNode(Descriptor descriptor);
/**
* @return true if XML validation should be performed at load time
*/
protected boolean getXMLValidation() {
return xmlValidation;
}
/**
* sets wether XML validation should be performed at load time
* @param validate true to validate
*/
public void setXMLValidation(boolean validate) {
xmlValidation = validate;
}
/**
* Sets the xml validation error reporting/recovering level.
* The reporting level is active only when xml validation is
* turned on @see setXMLValidation.
* so far, two values can be passed, medium which reports the
* xml validation and continue and full which reports the
* xml validation and stop the xml parsing.
*/
public void setXMLValidationLevel(String level) {
validationLevel = level;
}
/**
* @return the xml validation reporting level
*/
public String getXMLValidationLevel() {
return validationLevel;
}
/**
* @return the default schema source for this deployment descriptors
*/
protected String getDefaultSchemaSource() {
RootXMLNode node = getRootXMLNode(null);
if (node != null) {
List systemIDs = node.getSystemIDs();
if (systemIDs != null) {
StringBuilder path = new StringBuilder();
for (String systemID : systemIDs) {
if (path.length() > 0) {
path.append(' ');
}
path.append(systemID);
}
return path.toString();
}
}
return null;
}
/**
* Sets the error reporting string
*/
public void setErrorReportingString(String s) {
this.errorReportingString = s;
}
/**
* @return the archive type associated with this deployment descriptor file
*/
public ArchiveType getArchiveType() {
return archiveType;
}
/**
* @param type the archive type to set on this deployment descriptor file
*/
public void setArchiveType(ArchiveType type) {
archiveType = type;
}
}
