org.owasp.esapi.waf.rules.IPRule 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 <detect-source-ip> rules.
* @author Arshan Dabirsiaghi
*
*/
public class IPRule extends Rule {
private Pattern allowedIP;
private String exactPath;
private Pattern path;
private boolean useExactPath = false;
private String ipHeader;
public IPRule(String id, Pattern allowedIP, Pattern path, String ipHeader) {
this.allowedIP = allowedIP;
this.path = path;
this.useExactPath = false;
this.ipHeader = ipHeader;
setId(id);
}
public IPRule(String id, Pattern allowedIP, String exactPath) {
this.path = null;
this.exactPath = exactPath;
this.useExactPath = true;
setId(id);
}
public Action check(HttpServletRequest request,
InterceptingHTTPServletResponse response,
HttpServletResponse httpResponse) {
String uri = request.getRequestURI();
if ( (!useExactPath && path.matcher(uri).matches()) ||
( useExactPath && exactPath.equals(uri)) ) {
String sourceIP = request.getRemoteAddr() + "";
if ( ipHeader != null ) {
sourceIP = request.getHeader(ipHeader);
}
if ( ! allowedIP.matcher(sourceIP).matches() ) {
log(request, "IP not allowed to access URI '" + uri + "'");
return new DefaultAction();
}
}
return new DoNothingAction();
}
}