All Downloads are FREE. Search and download functionalities are using the official Maven repository.

org.apache.xerces.parsers.SecurityConfiguration Maven / Gradle / Ivy

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.xerces.parsers;

import org.apache.xerces.impl.Constants;
import org.apache.xerces.util.SecurityManager;
import org.apache.xerces.util.SymbolTable;
import org.apache.xerces.xni.grammars.XMLGrammarPool;
import org.apache.xerces.xni.parser.XMLComponentManager;

/**
 * This configuration allows Xerces to behave in a security-conscious manner; that is,
 * it permits applications to instruct Xerces to limit certain
 * operations that could be exploited by malicious document authors to cause a denail-of-service
 * attack when the document is parsed.
 *
 * In addition to the features and properties recognized by the base
 * parser configuration, this class recognizes these additional 
 * features and properties:
 * 
    *
  • Properties *
      *
    • http://apache.org/xml/properties/security-manager
    • *
    *
* * @author Neil Graham, IBM * * @version $Id: SecurityConfiguration.java 699892 2008-09-28 21:08:27Z mrglavas $ */ public class SecurityConfiguration extends XIncludeAwareParserConfiguration { // // Constants // protected static final String SECURITY_MANAGER_PROPERTY = Constants.XERCES_PROPERTY_PREFIX + Constants.SECURITY_MANAGER_PROPERTY; // // Constructors // /** Default constructor. */ public SecurityConfiguration () { this(null, null, null); } // () /** * Constructs a parser configuration using the specified symbol table. * * @param symbolTable The symbol table to use. */ public SecurityConfiguration (SymbolTable symbolTable) { this(symbolTable, null, null); } // (SymbolTable) /** * Constructs a parser configuration using the specified symbol table and * grammar pool. *

* REVISIT: * Grammar pool will be updated when the new validation engine is * implemented. * * @param symbolTable The symbol table to use. * @param grammarPool The grammar pool to use. */ public SecurityConfiguration (SymbolTable symbolTable, XMLGrammarPool grammarPool) { this(symbolTable, grammarPool, null); } // (SymbolTable,XMLGrammarPool) /** * Constructs a parser configuration using the specified symbol table, * grammar pool, and parent settings. *

* REVISIT: * Grammar pool will be updated when the new validation engine is * implemented. * * @param symbolTable The symbol table to use. * @param grammarPool The grammar pool to use. * @param parentSettings The parent settings. */ public SecurityConfiguration (SymbolTable symbolTable, XMLGrammarPool grammarPool, XMLComponentManager parentSettings) { super(symbolTable, grammarPool, parentSettings); // create the SecurityManager property: setProperty(SECURITY_MANAGER_PROPERTY, new SecurityManager()); } // (SymbolTable,XMLGrammarPool) } // class SecurityConfiguration





© 2015 - 2024 Weber Informatics LLC | Privacy Policy