src/main/org/owasp/html/HtmlChangeListener.java

// Copyright (c) 2011, Mike Samuel
// All rights reserved.
//
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package org.owasp.html;

import javax.annotation.Nullable;

/**
 * Receives events when an HTML tag, or attribute is discarded.
 * This can be hooked into an intrusion detection system to alert code when
 * suspicious HTML passes through the sanitizer.
 */
public interface HtmlChangeListener<T> {

  /** Called when a tag is discarded from the input. */
  public void discardedTag(@Nullable T context, String elementName);

  /**
   * Called when attributes are discarded
   * from the input but the containing tag is not.
   */
  public void discardedAttributes(
      @Nullable T context, String tagName, String... attributeNames);
}