/*
* Copyright (c) Members of the EGEE Collaboration. 2006-2010.
* See http://www.eu-egee.org/partners/ for details on the copyright holders.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.glite.authz.common.http;
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletResponse;
import org.glite.authz.common.util.Strings;
/** A simple filter that password protects a request. */
public class PasswordProtectFilter implements Filter {
/** HTTP request parameter that carries the password. */
public static final String PASSWORD_PARAM_NAME = "password";
/** The expected request password. */
private final String requestPassword;
/**
* Constructor.
*
* @param password the request password
*/
public PasswordProtectFilter(String password){
requestPassword = Strings.safeTrimOrNullString(password);
}
/** {@inheritDoc} */
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException,
ServletException {
String password = Strings.safeTrimOrNullString(request.getParameter(PASSWORD_PARAM_NAME));
if(requestPassword != null && !requestPassword.equals(password)){
((HttpServletResponse)response).setStatus(HttpServletResponse.SC_UNAUTHORIZED);
return;
}
chain.doFilter(request, response);
}
/** {@inheritDoc} */
public void init(FilterConfig filterConfig) throws ServletException {
}
/** {@inheritDoc} */
public void destroy() {
}
}