1 // Copyright (c) 2011, Mike Samuel 2 // All rights reserved. 3 // 4 // Redistribution and use in source and binary forms, with or without 5 // modification, are permitted provided that the following conditions 6 // are met: 7 // 8 // Redistributions of source code must retain the above copyright 9 // notice, this list of conditions and the following disclaimer. 10 // Redistributions in binary form must reproduce the above copyright 11 // notice, this list of conditions and the following disclaimer in the 12 // documentation and/or other materials provided with the distribution. 13 // Neither the name of the OWASP nor the names of its contributors may 14 // be used to endorse or promote products derived from this software 15 // without specific prior written permission. 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 19 // FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 20 // COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 21 // INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 22 // BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 23 // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 24 // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 // LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 26 // ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 27 // POSSIBILITY OF SUCH DAMAGE. 28 29 package org.owasp.html; 30 31 import javax.annotation.Nullable; 32 33 /** 34 * Receives events when an HTML tag, or attribute is discarded. 35 * This can be hooked into an intrusion detection system to alert code when 36 * suspicious HTML passes through the sanitizer. 37 */ 38 public interface HtmlChangeListener<T> { 39 40 /** Called when a tag is discarded from the input. */ discardedTag(@ullable T context, String elementName)41 public void discardedTag(@Nullable T context, String elementName); 42 43 /** 44 * Called when attributes are discarded 45 * from the input but the containing tag is not. 46 */ discardedAttributes( @ullable T context, String tagName, String... attributeNames)47 public void discardedAttributes( 48 @Nullable T context, String tagName, String... attributeNames); 49 } 50