[58] | 1 | /* Copyright 2006-2009 the original author or authors. |
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| 2 | * |
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| 3 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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| 4 | * you may not use this file except in compliance with the License. |
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| 5 | * You may obtain a copy of the License at |
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| 6 | * |
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| 7 | * http://www.apache.org/licenses/LICENSE-2.0 |
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| 8 | * |
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| 9 | * Unless required by applicable law or agreed to in writing, software |
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| 10 | * distributed under the License is distributed on an "AS IS" BASIS, |
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| 11 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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| 12 | * See the License for the specific language governing permissions and |
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| 13 | * limitations under the License. |
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| 14 | */ |
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| 15 | package org.codehaus.groovy.grails.plugins.springsecurity; |
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| 16 | |
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| 17 | import java.io.IOException; |
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| 18 | |
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| 19 | import javax.servlet.ServletRequest; |
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| 20 | import javax.servlet.ServletResponse; |
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| 21 | import javax.servlet.http.HttpServletRequest; |
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| 22 | import javax.servlet.http.HttpServletResponse; |
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| 23 | |
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| 24 | import org.springframework.beans.factory.InitializingBean; |
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| 25 | import org.springframework.security.AccessDeniedException; |
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| 26 | import org.springframework.security.Authentication; |
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| 27 | import org.springframework.security.AuthenticationTrustResolver; |
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| 28 | import org.springframework.security.AuthenticationTrustResolverImpl; |
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| 29 | import org.springframework.security.context.SecurityContextHolder; |
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| 30 | import org.springframework.security.ui.AbstractProcessingFilter; |
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| 31 | import org.springframework.security.ui.AccessDeniedHandler; |
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| 32 | import org.springframework.security.ui.savedrequest.SavedRequest; |
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| 33 | import org.springframework.security.userdetails.UserDetails; |
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| 34 | import org.springframework.security.util.PortResolver; |
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| 35 | import org.springframework.util.Assert; |
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| 36 | |
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| 37 | /** |
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| 38 | * {@link AccessDeniedHandler} for redirect to errorPage (not RequestDispatcher#forward). |
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| 39 | * |
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| 40 | * @author T.Yamamoto |
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| 41 | * @author <a href='mailto:beckwithb@studentsonly.com'>Burt Beckwith</a> |
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| 42 | */ |
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| 43 | public class GrailsAccessDeniedHandlerImpl implements AccessDeniedHandler, InitializingBean { |
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| 44 | |
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| 45 | private String errorPage; |
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| 46 | private String ajaxErrorPage; |
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| 47 | private String ajaxHeader = WithAjaxAuthenticationProcessingFilterEntryPoint.AJAX_HEADER; |
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| 48 | private PortResolver portResolver; |
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| 49 | private final AuthenticationTrustResolver authenticationTrustResolver = new AuthenticationTrustResolverImpl(); |
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| 50 | |
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| 51 | /** |
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| 52 | * {@inheritDoc} |
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| 53 | * @see org.springframework.security.ui.AccessDeniedHandler#handle( |
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| 54 | * javax.servlet.ServletRequest, javax.servlet.ServletResponse, |
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| 55 | * org.springframework.security.AccessDeniedException) |
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| 56 | */ |
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| 57 | public void handle(final ServletRequest req, final ServletResponse res, final AccessDeniedException e) |
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| 58 | throws IOException { |
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| 59 | |
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| 60 | HttpServletRequest request = (HttpServletRequest)req; |
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| 61 | HttpServletResponse response = (HttpServletResponse)res; |
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| 62 | |
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| 63 | if (e != null && isLoggedIn() && authenticationTrustResolver.isRememberMe(getAuthentication())) { |
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| 64 | // user has a cookie but is getting bounced because of IS_AUTHENTICATED_FULLY, |
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| 65 | // so Acegi won't save the original request |
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| 66 | request.getSession().setAttribute( |
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| 67 | AbstractProcessingFilter.SPRING_SECURITY_SAVED_REQUEST_KEY, |
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| 68 | new SavedRequest(request, portResolver)); |
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| 69 | } |
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| 70 | |
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| 71 | if (errorPage != null || (ajaxErrorPage != null && request.getHeader(ajaxHeader) != null)) { |
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| 72 | boolean includePort = true; |
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| 73 | String scheme = request.getScheme(); |
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| 74 | String serverName = request.getServerName(); |
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| 75 | int serverPort = portResolver.getServerPort(request); |
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| 76 | String contextPath = request.getContextPath(); |
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| 77 | boolean inHttp = "http".equals(scheme.toLowerCase()); |
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| 78 | boolean inHttps = "https".equals(scheme.toLowerCase()); |
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| 79 | |
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| 80 | if (inHttp && (serverPort == 80)) { |
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| 81 | includePort = false; |
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| 82 | } |
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| 83 | else if (inHttps && (serverPort == 443)) { |
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| 84 | includePort = false; |
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| 85 | } |
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| 86 | |
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| 87 | String commonRedirectUrl = scheme + "://" + serverName + ((includePort) ? (":" + serverPort) : "") |
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| 88 | + contextPath; |
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| 89 | String redirectUrl = commonRedirectUrl; |
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| 90 | if (ajaxErrorPage != null && request.getHeader(ajaxHeader) != null) { |
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| 91 | redirectUrl += ajaxErrorPage; |
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| 92 | } |
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| 93 | else if (errorPage != null) { |
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| 94 | redirectUrl += errorPage; |
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| 95 | } |
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| 96 | else { |
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| 97 | response.sendError(HttpServletResponse.SC_FORBIDDEN, e.getMessage()); |
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| 98 | } |
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| 99 | |
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| 100 | response.sendRedirect(response.encodeRedirectURL(redirectUrl)); |
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| 101 | } |
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| 102 | |
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| 103 | if (!response.isCommitted()) { |
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| 104 | // Send 403 (we do this after response has been written) |
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| 105 | response.sendError(HttpServletResponse.SC_FORBIDDEN, e.getMessage()); |
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| 106 | } |
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| 107 | } |
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| 108 | |
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| 109 | private boolean isLoggedIn() { |
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| 110 | if (getAuthentication() == null) { |
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| 111 | return false; |
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| 112 | } |
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| 113 | return getAuthentication().getPrincipal() instanceof UserDetails; |
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| 114 | } |
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| 115 | |
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| 116 | private Authentication getAuthentication() { |
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| 117 | return SecurityContextHolder.getContext() == null ? null |
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| 118 | : SecurityContextHolder.getContext().getAuthentication(); |
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| 119 | } |
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| 120 | |
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| 121 | /** |
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| 122 | * Dependency injection for the error page, e.g. '/login/denied'. |
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| 123 | * @param page the page |
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| 124 | */ |
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| 125 | public void setErrorPage(final String page) { |
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| 126 | if (page != null && !page.startsWith("/")) { |
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| 127 | throw new IllegalArgumentException("ErrorPage must begin with '/'"); |
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| 128 | } |
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| 129 | errorPage = page; |
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| 130 | } |
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| 131 | |
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| 132 | /** |
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| 133 | * Dependency injection for the Ajax error page, e.g. '/login/deniedAjax'. |
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| 134 | * @param page the page |
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| 135 | */ |
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| 136 | public void setAjaxErrorPage(final String page) { |
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| 137 | if (page != null && !page.startsWith("/")) { |
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| 138 | throw new IllegalArgumentException("ErrorPage must begin with '/'"); |
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| 139 | } |
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| 140 | ajaxErrorPage = page; |
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| 141 | } |
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| 142 | |
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| 143 | /** |
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| 144 | * Dependency injection for the Ajax header name; defaults to 'X-Requested-With'. |
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| 145 | * @param header the header name |
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| 146 | */ |
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| 147 | public void setAjaxHeader(final String header) { |
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| 148 | ajaxHeader = header; |
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| 149 | } |
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| 150 | |
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| 151 | /** |
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| 152 | * Dependency injection for the port resolver. |
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| 153 | * @param resolver the resolver |
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| 154 | */ |
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| 155 | public void setPortResolver(final PortResolver resolver) { |
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| 156 | portResolver = resolver; |
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| 157 | } |
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| 158 | |
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| 159 | /** |
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| 160 | * {@inheritDoc} |
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| 161 | * @see org.springframework.beans.factory.InitializingBean#afterPropertiesSet() |
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| 162 | */ |
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| 163 | public void afterPropertiesSet() { |
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| 164 | Assert.notNull(ajaxHeader, "ajaxHeader is required"); |
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| 165 | Assert.notNull(portResolver, "portResolver is required"); |
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| 166 | } |
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| 167 | } |
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