001/*
002 * The MIT License
003 * Copyright (c) 2012 Microsoft Corporation
004 *
005 * Permission is hereby granted, free of charge, to any person obtaining a copy
006 * of this software and associated documentation files (the "Software"), to deal
007 * in the Software without restriction, including without limitation the rights
008 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
009 * copies of the Software, and to permit persons to whom the Software is
010 * furnished to do so, subject to the following conditions:
011 *
012 * The above copyright notice and this permission notice shall be included in
013 * all copies or substantial portions of the Software.
014 *
015 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
016 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
017 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
018 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
019 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
020 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
021 * THE SOFTWARE.
022 */
023
024package microsoft.exchange.webservices.data.security;
025
026import javax.xml.stream.XMLInputFactory;
027import javax.xml.stream.XMLStreamException;
028import javax.xml.stream.XMLStreamReader;
029import javax.xml.validation.Schema;
030import javax.xml.validation.Validator;
031import javax.xml.validation.ValidatorHandler;
032
033import java.io.InputStream;
034
035/**
036 * XmlSchema with protection against DTD parsing in read overloads
037 */
038public class SafeXmlSchema extends Schema {
039
040  @Override
041  public Validator newValidator() {
042    // TODO Auto-generated method stub
043    return null;
044  }
045
046  @Override
047  public ValidatorHandler newValidatorHandler() {
048    // TODO Auto-generated method stub
049    return null;
050  }
051
052  /**
053   * Reads an XML Schema from the supplied stream.
054   *
055   * @param stream The supplied data stream.
056   * @return The XmlSchema object representing the XML Schema.
057   * @throws javax.xml.stream.XMLStreamException
058   */
059  public static Schema read(final InputStream stream) throws XMLStreamException {
060    final XMLInputFactory inputFactory = XMLInputFactory.newInstance();
061    return (Schema) inputFactory.createXMLEventReader(stream);
062  }
063
064  /**
065   * Reads an XML Schema from the supplied TextReader.
066   *
067   * @param reader The TextReader containing the XML Schema to read
068   * @return The XmlSchema object representing the XML Schema.
069   * @throws javax.xml.stream.XMLStreamException
070   */
071
072  public static Schema read(XMLStreamReader reader) throws XMLStreamException {
073    final XMLInputFactory inputFactory = XMLInputFactory.newInstance();
074    return (Schema) inputFactory.createXMLEventReader(reader);
075  }
076
077}