/*
* Copyright 2013-2014 Erudika. http://erudika.com
*
* 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.
*
* For issues and patches go to: https://github.com/erudika
*/
package com.erudika.para.security;
import com.erudika.para.core.User;
import java.io.IOException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.security.authentication.BadCredentialsException;
import org.springframework.security.authentication.LockedException;
import org.springframework.security.core.Authentication;
import org.springframework.security.openid.OpenIDAuthenticationFilter;
import org.springframework.security.web.util.matcher.RequestMatcher;
/**
* A filter that handles authentication requests to OpenID providers.
* @author Alex Bogdanovski [alex@erudika.com]
*/
public class OpenIDAuthFilter extends OpenIDAuthenticationFilter {
/**
* The default filter mapping
*/
public static final String OPENID_ACTION = "openid_auth";
/**
* Default constructor.
* @param defaultFilterProcessesUrl the url of the filter
*/
public OpenIDAuthFilter(final String defaultFilterProcessesUrl) {
setRequiresAuthenticationRequestMatcher(new RequestMatcher() {
public boolean matches(HttpServletRequest request) {
String uri = request.getRequestURI();
boolean matches;
if ("".equals(request.getContextPath())) {
matches = uri.endsWith(defaultFilterProcessesUrl);
} else {
matches = uri.endsWith(request.getContextPath() + defaultFilterProcessesUrl);
}
return matches;
}
});
}
/**
* Handles an authentication request.
* @param request HTTP request
* @param response HTTP response
* @return an authentication object that contains the principal object if successful.
* @throws IOException ex
*/
@Override
public Authentication attemptAuthentication(HttpServletRequest request, HttpServletResponse response)
throws IOException {
final String requestURI = request.getRequestURI();
Authentication userAuth = null;
User user = null;
if (requestURI.endsWith(OPENID_ACTION)) {
Authentication oidAuth = super.attemptAuthentication(request, response);
if (oidAuth == null) {
// hang on... redirecting to openid provider
return null;
} else {
//success!
user = (User) oidAuth.getPrincipal();
userAuth = new UserAuthentication(user);
}
}
if (userAuth == null || user == null || user.getIdentifier() == null) {
throw new BadCredentialsException("Bad credentials.");
} else if (!user.isEnabled()) {
throw new LockedException("Account is locked.");
}
return userAuth;
}
}