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379 lines
16 KiB
379 lines
16 KiB
/*
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* Copyright (c) 2007, 2018, Oracle and/or its affiliates. All rights reserved.
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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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*/
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/**
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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package com.sun.org.apache.xml.internal.security;
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import java.io.InputStream;
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import java.security.AccessController;
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import java.security.PrivilegedAction;
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import java.security.PrivilegedActionException;
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import java.security.PrivilegedExceptionAction;
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import java.util.ArrayList;
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import java.util.List;
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import javax.xml.XMLConstants;
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import javax.xml.parsers.DocumentBuilder;
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import javax.xml.parsers.DocumentBuilderFactory;
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import com.sun.org.apache.xml.internal.security.algorithms.JCEMapper;
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import com.sun.org.apache.xml.internal.security.algorithms.SignatureAlgorithm;
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import com.sun.org.apache.xml.internal.security.c14n.Canonicalizer;
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import com.sun.org.apache.xml.internal.security.exceptions.XMLSecurityException;
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import com.sun.org.apache.xml.internal.security.keys.keyresolver.KeyResolver;
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import com.sun.org.apache.xml.internal.security.transforms.Transform;
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import com.sun.org.apache.xml.internal.security.utils.ElementProxy;
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import com.sun.org.apache.xml.internal.security.utils.I18n;
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import com.sun.org.apache.xml.internal.security.utils.XMLUtils;
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import com.sun.org.apache.xml.internal.security.utils.resolver.ResourceResolver;
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import org.w3c.dom.Attr;
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import org.w3c.dom.Document;
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import org.w3c.dom.Element;
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import org.w3c.dom.Node;
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/**
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* This class does the configuration of the library. This includes creating
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* the mapping of Canonicalization and Transform algorithms. Initialization is
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* done by calling {@link Init#init} which should be done in any static block
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* of the files of this library. We ensure that this call is only executed once.
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*/
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public class Init {
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/** The namespace for CONF file **/
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public static final String CONF_NS = "http://www.xmlsecurity.org/NS/#configuration";
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/** {@link org.apache.commons.logging} logging facility */
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private static java.util.logging.Logger log =
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java.util.logging.Logger.getLogger(Init.class.getName());
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/** Field alreadyInitialized */
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private static boolean alreadyInitialized = false;
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/**
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* Method isInitialized
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* @return true if the library is already initialized.
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*/
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public static synchronized final boolean isInitialized() {
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return Init.alreadyInitialized;
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}
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/**
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* Method init
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*
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*/
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public static synchronized void init() {
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if (alreadyInitialized) {
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return;
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}
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InputStream is =
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AccessController.doPrivileged(
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new PrivilegedAction<InputStream>() {
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public InputStream run() {
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String cfile =
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System.getProperty("com.sun.org.apache.xml.internal.security.resource.config");
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if (cfile == null) {
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return null;
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}
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return getClass().getResourceAsStream(cfile);
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}
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});
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if (is == null) {
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dynamicInit();
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} else {
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fileInit(is);
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}
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alreadyInitialized = true;
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}
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/**
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* Dynamically initialise the library by registering the default algorithms/implementations
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*/
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private static void dynamicInit() {
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//
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// Load the Resource Bundle - the default is the English resource bundle.
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// To load another resource bundle, call I18n.init(...) before calling this
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// method.
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//
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I18n.init("en", "US");
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if (log.isLoggable(java.util.logging.Level.FINE)) {
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log.log(java.util.logging.Level.FINE, "Registering default algorithms");
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}
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try {
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AccessController.doPrivileged(new PrivilegedExceptionAction<Void>(){
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@Override public Void run() throws XMLSecurityException {
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//
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// Bind the default prefixes
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//
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ElementProxy.registerDefaultPrefixes();
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//
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// Set the default Transforms
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//
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Transform.registerDefaultAlgorithms();
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//
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// Set the default signature algorithms
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//
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SignatureAlgorithm.registerDefaultAlgorithms();
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//
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// Set the default JCE algorithms
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//
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JCEMapper.registerDefaultAlgorithms();
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//
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// Set the default c14n algorithms
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//
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Canonicalizer.registerDefaultAlgorithms();
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//
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// Register the default resolvers
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//
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ResourceResolver.registerDefaultResolvers();
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//
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// Register the default key resolvers
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//
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KeyResolver.registerDefaultResolvers();
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return null;
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}
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});
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} catch (PrivilegedActionException ex) {
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XMLSecurityException xse = (XMLSecurityException)ex.getException();
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log.log(java.util.logging.Level.SEVERE, xse.getMessage(), xse);
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xse.printStackTrace();
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}
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}
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/**
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* Initialise the library from a configuration file
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*/
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private static void fileInit(InputStream is) {
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try {
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/* read library configuration file */
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DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
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dbf.setFeature(XMLConstants.FEATURE_SECURE_PROCESSING, Boolean.TRUE);
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dbf.setNamespaceAware(true);
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dbf.setValidating(false);
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DocumentBuilder db = dbf.newDocumentBuilder();
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Document doc = db.parse(is);
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Node config = doc.getFirstChild();
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for (; config != null; config = config.getNextSibling()) {
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if ("Configuration".equals(config.getLocalName())) {
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break;
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}
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}
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if (config == null) {
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log.log(java.util.logging.Level.SEVERE, "Error in reading configuration file - Configuration element not found");
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return;
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}
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for (Node el = config.getFirstChild(); el != null; el = el.getNextSibling()) {
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if (Node.ELEMENT_NODE != el.getNodeType()) {
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continue;
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}
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String tag = el.getLocalName();
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if (tag.equals("ResourceBundles")) {
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Element resource = (Element)el;
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/* configure internationalization */
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Attr langAttr = resource.getAttributeNode("defaultLanguageCode");
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Attr countryAttr = resource.getAttributeNode("defaultCountryCode");
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String languageCode =
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(langAttr == null) ? null : langAttr.getNodeValue();
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String countryCode =
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(countryAttr == null) ? null : countryAttr.getNodeValue();
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I18n.init(languageCode, countryCode);
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}
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if (tag.equals("CanonicalizationMethods")) {
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Element[] list =
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XMLUtils.selectNodes(el.getFirstChild(), CONF_NS, "CanonicalizationMethod");
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for (int i = 0; i < list.length; i++) {
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String uri = list[i].getAttributeNS(null, "URI");
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String javaClass =
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list[i].getAttributeNS(null, "JAVACLASS");
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try {
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Canonicalizer.register(uri, javaClass);
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if (log.isLoggable(java.util.logging.Level.FINE)) {
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log.log(java.util.logging.Level.FINE, "Canonicalizer.register(" + uri + ", " + javaClass + ")");
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}
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} catch (ClassNotFoundException e) {
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Object exArgs[] = { uri, javaClass };
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log.log(java.util.logging.Level.SEVERE, I18n.translate("algorithm.classDoesNotExist", exArgs));
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}
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}
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}
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if (tag.equals("TransformAlgorithms")) {
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Element[] tranElem =
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XMLUtils.selectNodes(el.getFirstChild(), CONF_NS, "TransformAlgorithm");
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for (int i = 0; i < tranElem.length; i++) {
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String uri = tranElem[i].getAttributeNS(null, "URI");
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String javaClass =
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tranElem[i].getAttributeNS(null, "JAVACLASS");
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try {
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Transform.register(uri, javaClass);
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if (log.isLoggable(java.util.logging.Level.FINE)) {
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log.log(java.util.logging.Level.FINE, "Transform.register(" + uri + ", " + javaClass + ")");
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}
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} catch (ClassNotFoundException e) {
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Object exArgs[] = { uri, javaClass };
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log.log(java.util.logging.Level.SEVERE, I18n.translate("algorithm.classDoesNotExist", exArgs));
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} catch (NoClassDefFoundError ex) {
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log.log(java.util.logging.Level.WARNING, "Not able to found dependencies for algorithm, I'll keep working.");
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}
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}
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}
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if ("JCEAlgorithmMappings".equals(tag)) {
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Node algorithmsNode = ((Element)el).getElementsByTagName("Algorithms").item(0);
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if (algorithmsNode != null) {
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Element[] algorithms =
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XMLUtils.selectNodes(algorithmsNode.getFirstChild(), CONF_NS, "Algorithm");
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for (int i = 0; i < algorithms.length; i++) {
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Element element = algorithms[i];
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String id = element.getAttribute("URI");
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JCEMapper.register(id, new JCEMapper.Algorithm(element));
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}
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}
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}
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if (tag.equals("SignatureAlgorithms")) {
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Element[] sigElems =
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XMLUtils.selectNodes(el.getFirstChild(), CONF_NS, "SignatureAlgorithm");
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for (int i = 0; i < sigElems.length; i++) {
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String uri = sigElems[i].getAttributeNS(null, "URI");
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String javaClass =
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sigElems[i].getAttributeNS(null, "JAVACLASS");
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/** $todo$ handle registering */
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try {
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SignatureAlgorithm.register(uri, javaClass);
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if (log.isLoggable(java.util.logging.Level.FINE)) {
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log.log(java.util.logging.Level.FINE, "SignatureAlgorithm.register(" + uri + ", "
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+ javaClass + ")");
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}
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} catch (ClassNotFoundException e) {
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Object exArgs[] = { uri, javaClass };
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log.log(java.util.logging.Level.SEVERE, I18n.translate("algorithm.classDoesNotExist", exArgs));
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}
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}
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}
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if (tag.equals("ResourceResolvers")) {
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Element[]resolverElem =
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XMLUtils.selectNodes(el.getFirstChild(), CONF_NS, "Resolver");
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for (int i = 0; i < resolverElem.length; i++) {
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String javaClass =
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resolverElem[i].getAttributeNS(null, "JAVACLASS");
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String description =
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resolverElem[i].getAttributeNS(null, "DESCRIPTION");
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if ((description != null) && (description.length() > 0)) {
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if (log.isLoggable(java.util.logging.Level.FINE)) {
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log.log(java.util.logging.Level.FINE, "Register Resolver: " + javaClass + ": "
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+ description);
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}
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} else {
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if (log.isLoggable(java.util.logging.Level.FINE)) {
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log.log(java.util.logging.Level.FINE, "Register Resolver: " + javaClass
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+ ": For unknown purposes");
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}
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}
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try {
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ResourceResolver.register(javaClass);
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} catch (Throwable e) {
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log.log(java.util.logging.Level.WARNING,
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"Cannot register:" + javaClass
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+ " perhaps some needed jars are not installed",
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e
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);
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}
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}
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}
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if (tag.equals("KeyResolver")){
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Element[] resolverElem =
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XMLUtils.selectNodes(el.getFirstChild(), CONF_NS, "Resolver");
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List<String> classNames = new ArrayList<String>(resolverElem.length);
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for (int i = 0; i < resolverElem.length; i++) {
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String javaClass =
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resolverElem[i].getAttributeNS(null, "JAVACLASS");
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String description =
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resolverElem[i].getAttributeNS(null, "DESCRIPTION");
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if ((description != null) && (description.length() > 0)) {
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if (log.isLoggable(java.util.logging.Level.FINE)) {
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log.log(java.util.logging.Level.FINE, "Register Resolver: " + javaClass + ": "
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+ description);
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}
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} else {
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if (log.isLoggable(java.util.logging.Level.FINE)) {
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log.log(java.util.logging.Level.FINE, "Register Resolver: " + javaClass
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+ ": For unknown purposes");
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}
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}
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classNames.add(javaClass);
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}
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KeyResolver.registerClassNames(classNames);
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}
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if (tag.equals("PrefixMappings")){
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if (log.isLoggable(java.util.logging.Level.FINE)) {
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log.log(java.util.logging.Level.FINE, "Now I try to bind prefixes:");
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}
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Element[] nl =
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XMLUtils.selectNodes(el.getFirstChild(), CONF_NS, "PrefixMapping");
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for (int i = 0; i < nl.length; i++) {
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String namespace = nl[i].getAttributeNS(null, "namespace");
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String prefix = nl[i].getAttributeNS(null, "prefix");
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if (log.isLoggable(java.util.logging.Level.FINE)) {
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log.log(java.util.logging.Level.FINE, "Now I try to bind " + prefix + " to " + namespace);
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}
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ElementProxy.setDefaultPrefix(namespace, prefix);
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}
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}
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}
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} catch (Exception e) {
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log.log(java.util.logging.Level.SEVERE, "Bad: ", e);
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e.printStackTrace();
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}
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}
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}
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