| Clover coverage report - Acegi Security System for Spring - 1.0.0-RC1 |
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| Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
| CasProcessingFilter.java | 100% | 100% | 100% | 100% |
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| 1 | /* Copyright 2004, 2005 Acegi Technology Pty Limited | |
| 2 | * | |
| 3 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
| 4 | * you may not use this file except in compliance with the License. | |
| 5 | * You may obtain a copy of the License at | |
| 6 | * | |
| 7 | * http://www.apache.org/licenses/LICENSE-2.0 | |
| 8 | * | |
| 9 | * Unless required by applicable law or agreed to in writing, software | |
| 10 | * distributed under the License is distributed on an "AS IS" BASIS, | |
| 11 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 12 | * See the License for the specific language governing permissions and | |
| 13 | * limitations under the License. | |
| 14 | */ | |
| 15 | ||
| 16 | package org.acegisecurity.ui.cas; | |
| 17 | ||
| 18 | import org.acegisecurity.Authentication; | |
| 19 | import org.acegisecurity.AuthenticationException; | |
| 20 | import org.acegisecurity.providers.UsernamePasswordAuthenticationToken; | |
| 21 | import org.acegisecurity.ui.AbstractProcessingFilter; | |
| 22 | import org.acegisecurity.ui.WebAuthenticationDetails; | |
| 23 | ||
| 24 | import javax.servlet.FilterConfig; | |
| 25 | import javax.servlet.ServletException; | |
| 26 | import javax.servlet.http.HttpServletRequest; | |
| 27 | ||
| 28 | ||
| 29 | /** | |
| 30 | * Processes a CAS service ticket. | |
| 31 | * | |
| 32 | * <p> | |
| 33 | * A service ticket consists of an opaque ticket string. It arrives at this | |
| 34 | * filter by the user's browser successfully authenticating using CAS, and | |
| 35 | * then receiving a HTTP redirect to a <code>service</code>. The opaque ticket | |
| 36 | * string is presented in the <code>ticket</code> request parameter. This | |
| 37 | * filter monitors the <code>service</code> URL so it can receive the service | |
| 38 | * ticket and process it. The CAS server knows which <code>service</code> URL | |
| 39 | * to use via the {@link ServiceProperties#getService()} method. | |
| 40 | * </p> | |
| 41 | * | |
| 42 | * <p> | |
| 43 | * Processing the service ticket involves creating a | |
| 44 | * <code>UsernamePasswordAuthenticationToken</code> which uses {@link | |
| 45 | * #CAS_STATEFUL_IDENTIFIER} for the <code>principal</code> and the opaque | |
| 46 | * ticket string as the <code>credentials</code>. | |
| 47 | * </p> | |
| 48 | * | |
| 49 | * <p> | |
| 50 | * The configured <code>AuthenticationManager</code> is expected to provide a | |
| 51 | * provider that can recognise | |
| 52 | * <code>UsernamePasswordAuthenticationToken</code>s containing this special | |
| 53 | * <code>principal</code> name, and process them accordingly by validation | |
| 54 | * with the CAS server. | |
| 55 | * </p> | |
| 56 | * | |
| 57 | * <p> | |
| 58 | * <b>Do not use this class directly.</b> Instead configure | |
| 59 | * <code>web.xml</code> to use the {@link | |
| 60 | * org.acegisecurity.util.FilterToBeanProxy}. | |
| 61 | * </p> | |
| 62 | * | |
| 63 | * @author Ben Alex | |
| 64 | * @version $Id: CasProcessingFilter.java,v 1.6 2005/11/17 00:55:49 benalex Exp $ | |
| 65 | */ | |
| 66 | public class CasProcessingFilter extends AbstractProcessingFilter { | |
| 67 | //~ Static fields/initializers ============================================= | |
| 68 | ||
| 69 | /** | |
| 70 | * Used to identify a CAS request for a stateful user agent, such as a web | |
| 71 | * browser. | |
| 72 | */ | |
| 73 | public static final String CAS_STATEFUL_IDENTIFIER = "_cas_stateful_"; | |
| 74 | ||
| 75 | /** | |
| 76 | * Used to identify a CAS request for a stateless user agent, such as a | |
| 77 | * remoting protocol client (eg Hessian, Burlap, SOAP etc). Results in a | |
| 78 | * more aggressive caching strategy being used, as the absence of a | |
| 79 | * <code>HttpSession</code> will result in a new authentication attempt on | |
| 80 | * every request. | |
| 81 | */ | |
| 82 | public static final String CAS_STATELESS_IDENTIFIER = "_cas_stateless_"; | |
| 83 | ||
| 84 | //~ Methods ================================================================ | |
| 85 | ||
| 86 | /** | |
| 87 | * This filter by default responds to | |
| 88 | * <code>/j_acegi_cas_security_check</code>. | |
| 89 | * | |
| 90 | * @return the default | |
| 91 | */ | |
| 92 | 4 | public String getDefaultFilterProcessesUrl() { |
| 93 | 4 | return "/j_acegi_cas_security_check"; |
| 94 | } | |
| 95 | ||
| 96 | 2 | public Authentication attemptAuthentication(HttpServletRequest request) |
| 97 | throws AuthenticationException { | |
| 98 | 2 | String username = CAS_STATEFUL_IDENTIFIER; |
| 99 | 2 | String password = request.getParameter("ticket"); |
| 100 | ||
| 101 | 2 | if (password == null) { |
| 102 | 1 | password = ""; |
| 103 | } | |
| 104 | ||
| 105 | 2 | UsernamePasswordAuthenticationToken authRequest = new UsernamePasswordAuthenticationToken(username, |
| 106 | password); | |
| 107 | 2 | authRequest.setDetails(new WebAuthenticationDetails(request)); |
| 108 | ||
| 109 | 2 | return this.getAuthenticationManager().authenticate(authRequest); |
| 110 | } | |
| 111 | ||
| 112 | 2 | public void init(FilterConfig filterConfig) throws ServletException {} |
| 113 | } |
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