org.owasp.esapi.waf.rules.PathExtensionRule Maven / Gradle / Ivy
/**
* OWASP Enterprise Security API (ESAPI)
*
* This file is part of the Open Web Application Security Project (OWASP)
* Enterprise Security API (ESAPI) project. For details, please see
* http://www.owasp.org/index.php/ESAPI.
*
* Copyright (c) 2009 - The OWASP Foundation
*
* The ESAPI is published by OWASP under the BSD license. You should read and accept the
* LICENSE before you use, modify, and/or redistribute this software.
*
* @author Arshan Dabirsiaghi Aspect Security
* @created 2009
*/
package org.owasp.esapi.waf.rules;
import java.util.regex.Pattern;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.owasp.esapi.waf.actions.Action;
import org.owasp.esapi.waf.actions.DefaultAction;
import org.owasp.esapi.waf.actions.DoNothingAction;
import org.owasp.esapi.waf.internal.InterceptingHTTPServletResponse;
/**
* This is the Rule subclass executed for <restrict-extension> rules.
* @author Arshan Dabirsiaghi
*
*/
public class PathExtensionRule extends Rule {
private Pattern allow;
private Pattern deny;
public PathExtensionRule (String id, Pattern allow, Pattern deny) {
this.allow = allow;
this.deny = deny;
setId(id);
}
public Action check(HttpServletRequest request,
InterceptingHTTPServletResponse response,
HttpServletResponse httpResponse) {
if ( allow != null && allow.matcher(request.getRequestURI()).matches() ) {
return new DoNothingAction();
} else if ( deny != null && deny.matcher(request.getRequestURI()).matches() ) {
log(request, "Disallowed extension pattern '" + deny.pattern() + "' found on URI '" + request.getRequestURI() + "'");
return new DefaultAction();
}
return new DoNothingAction();
}
}