/* Copyright 2006-2009 the original author or authors.
*
* 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.codehaus.groovy.grails.plugins.springsecurity;
import java.io.IOException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.security.AccessDeniedException;
import org.springframework.security.Authentication;
import org.springframework.security.AuthenticationTrustResolver;
import org.springframework.security.AuthenticationTrustResolverImpl;
import org.springframework.security.context.SecurityContextHolder;
import org.springframework.security.ui.AbstractProcessingFilter;
import org.springframework.security.ui.AccessDeniedHandler;
import org.springframework.security.ui.savedrequest.SavedRequest;
import org.springframework.security.userdetails.UserDetails;
import org.springframework.security.util.PortResolver;
import org.springframework.util.Assert;
/**
* {@link AccessDeniedHandler} for redirect to errorPage (not RequestDispatcher#forward).
*
* @author T.Yamamoto
* @author <a href='mailto:beckwithb@studentsonly.com'>Burt Beckwith</a>
*/
public class GrailsAccessDeniedHandlerImpl implements AccessDeniedHandler, InitializingBean {
private String errorPage;
private String ajaxErrorPage;
private String ajaxHeader = WithAjaxAuthenticationProcessingFilterEntryPoint.AJAX_HEADER;
private PortResolver portResolver;
private final AuthenticationTrustResolver authenticationTrustResolver = new AuthenticationTrustResolverImpl();
/**
* {@inheritDoc}
* @see org.springframework.security.ui.AccessDeniedHandler#handle(
* javax.servlet.ServletRequest, javax.servlet.ServletResponse,
* org.springframework.security.AccessDeniedException)
*/
public void handle(final ServletRequest req, final ServletResponse res, final AccessDeniedException e)
throws IOException {
HttpServletRequest request = (HttpServletRequest)req;
HttpServletResponse response = (HttpServletResponse)res;
if (e != null && isLoggedIn() && authenticationTrustResolver.isRememberMe(getAuthentication())) {
// user has a cookie but is getting bounced because of IS_AUTHENTICATED_FULLY,
// so Acegi won't save the original request
request.getSession().setAttribute(
AbstractProcessingFilter.SPRING_SECURITY_SAVED_REQUEST_KEY,
new SavedRequest(request, portResolver));
}
if (errorPage != null || (ajaxErrorPage != null && request.getHeader(ajaxHeader) != null)) {
boolean includePort = true;
String scheme = request.getScheme();
String serverName = request.getServerName();
int serverPort = portResolver.getServerPort(request);
String contextPath = request.getContextPath();
boolean inHttp = "http".equals(scheme.toLowerCase());
boolean inHttps = "https".equals(scheme.toLowerCase());
if (inHttp && (serverPort == 80)) {
includePort = false;
}
else if (inHttps && (serverPort == 443)) {
includePort = false;
}
String commonRedirectUrl = scheme + "://" + serverName + ((includePort) ? (":" + serverPort) : "")
+ contextPath;
String redirectUrl = commonRedirectUrl;
if (ajaxErrorPage != null && request.getHeader(ajaxHeader) != null) {
redirectUrl += ajaxErrorPage;
}
else if (errorPage != null) {
redirectUrl += errorPage;
}
else {
response.sendError(HttpServletResponse.SC_FORBIDDEN, e.getMessage());
}
response.sendRedirect(response.encodeRedirectURL(redirectUrl));
}
if (!response.isCommitted()) {
// Send 403 (we do this after response has been written)
response.sendError(HttpServletResponse.SC_FORBIDDEN, e.getMessage());
}
}
private boolean isLoggedIn() {
if (getAuthentication() == null) {
return false;
}
return getAuthentication().getPrincipal() instanceof UserDetails;
}
private Authentication getAuthentication() {
return SecurityContextHolder.getContext() == null ? null
: SecurityContextHolder.getContext().getAuthentication();
}
/**
* Dependency injection for the error page, e.g. '/login/denied'.
* @param page the page
*/
public void setErrorPage(final String page) {
if (page != null && !page.startsWith("/")) {
throw new IllegalArgumentException("ErrorPage must begin with '/'");
}
errorPage = page;
}
/**
* Dependency injection for the Ajax error page, e.g. '/login/deniedAjax'.
* @param page the page
*/
public void setAjaxErrorPage(final String page) {
if (page != null && !page.startsWith("/")) {
throw new IllegalArgumentException("ErrorPage must begin with '/'");
}
ajaxErrorPage = page;
}
/**
* Dependency injection for the Ajax header name; defaults to 'X-Requested-With'.
* @param header the header name
*/
public void setAjaxHeader(final String header) {
ajaxHeader = header;
}
/**
* Dependency injection for the port resolver.
* @param resolver the resolver
*/
public void setPortResolver(final PortResolver resolver) {
portResolver = resolver;
}
/**
* {@inheritDoc}
* @see org.springframework.beans.factory.InitializingBean#afterPropertiesSet()
*/
public void afterPropertiesSet() {
Assert.notNull(ajaxHeader, "ajaxHeader is required");
Assert.notNull(portResolver, "portResolver is required");
}
}