2 * The Shibboleth License, Version 1. Copyright (c) 2002 University Corporation for Advanced Internet Development, Inc.
3 * All rights reserved Redistribution and use in source and binary forms, with or without modification, are permitted
4 * provided that the following conditions are met: Redistributions of source code must retain the above copyright
5 * notice, this list of conditions and the following disclaimer. Redistributions in binary form must reproduce the above
6 * copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials
7 * provided with the distribution, if any, must include the following acknowledgment: "This product includes software
8 * developed by the University Corporation for Advanced Internet Development <http://www.ucaid.edu> Internet2 Project.
9 * Alternately, this acknowledegement may appear in the software itself, if and wherever such third-party
10 * acknowledgments normally appear. Neither the name of Shibboleth nor the names of its contributors, nor Internet2, nor
11 * the University Corporation for Advanced Internet Development, Inc., nor UCAID may be used to endorse or promote
12 * products derived from this software without specific prior written permission. For written permission, please contact
13 * shibboleth@shibboleth.org Products derived from this software may not be called Shibboleth, Internet2, UCAID, or the
14 * University Corporation for Advanced Internet Development, nor may Shibboleth appear in their name, without prior
15 * written permission of the University Corporation for Advanced Internet Development. THIS SOFTWARE IS PROVIDED BY THE
16 * COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND WITH ALL FAULTS. ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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18 * DISCLAIMED AND THE ENTIRE RISK OF SATISFACTORY QUALITY, PERFORMANCE, ACCURACY, AND EFFORT IS WITH LICENSEE. IN NO
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26 package edu.internet2.middleware.shibboleth.idp.provider;
28 import java.io.IOException;
30 import java.net.URISyntaxException;
31 import java.security.Principal;
32 import java.security.cert.X509Certificate;
33 import java.util.ArrayList;
34 import java.util.Arrays;
35 import java.util.Collections;
36 import java.util.Date;
37 import java.util.Iterator;
39 import javax.security.auth.x500.X500Principal;
40 import javax.servlet.ServletException;
41 import javax.servlet.http.HttpServletRequest;
42 import javax.servlet.http.HttpServletResponse;
44 import org.apache.log4j.Logger;
45 import org.opensaml.SAMLAssertion;
46 import org.opensaml.SAMLAttribute;
47 import org.opensaml.SAMLAttributeDesignator;
48 import org.opensaml.SAMLAttributeQuery;
49 import org.opensaml.SAMLAttributeStatement;
50 import org.opensaml.SAMLAudienceRestrictionCondition;
51 import org.opensaml.SAMLCondition;
52 import org.opensaml.SAMLException;
53 import org.opensaml.SAMLRequest;
54 import org.opensaml.SAMLResponse;
55 import org.opensaml.SAMLStatement;
56 import org.opensaml.SAMLSubject;
57 import org.w3c.dom.Element;
59 import sun.misc.BASE64Decoder;
60 import edu.internet2.middleware.shibboleth.aa.AAException;
61 import edu.internet2.middleware.shibboleth.common.InvalidNameIdentifierException;
62 import edu.internet2.middleware.shibboleth.common.NameIdentifierMappingException;
63 import edu.internet2.middleware.shibboleth.common.RelyingParty;
64 import edu.internet2.middleware.shibboleth.common.ShibBrowserProfile;
65 import edu.internet2.middleware.shibboleth.common.ShibbolethConfigurationException;
66 import edu.internet2.middleware.shibboleth.idp.IdPProtocolHandler;
67 import edu.internet2.middleware.shibboleth.idp.IdPProtocolSupport;
68 import edu.internet2.middleware.shibboleth.metadata.EntityDescriptor;
71 * @author Walter Hoehn
73 public class SAMLv1_AttributeQueryHandler extends BaseServiceHandler implements IdPProtocolHandler {
75 private static Logger log = Logger.getLogger(SAMLv1_AttributeQueryHandler.class.getName());
78 * Required DOM-based constructor.
80 public SAMLv1_AttributeQueryHandler(Element config) throws ShibbolethConfigurationException {
86 * @see edu.internet2.middleware.shibboleth.idp.ProtocolHandler#getHandlerName()
88 public String getHandlerName() {
90 return "SAML v1.1 Attribute Query";
93 private String getEffectiveName(HttpServletRequest req, RelyingParty relyingParty, IdPProtocolSupport support)
94 throws InvalidProviderCredentialException {
96 X509Certificate credential = getCredentialFromProvider(req);
98 if (credential == null || credential.getSubjectX500Principal().getName(X500Principal.RFC2253).equals("")) {
99 log.info("Request is from an unauthenticated service provider.");
103 log.info("Request contains credential: ("
104 + credential.getSubjectX500Principal().getName(X500Principal.RFC2253) + ").");
105 // Mockup old requester name for requests from < 1.2 targets
106 if (fromLegacyProvider(req)) {
107 String legacyName = ShibBrowserProfile.getHostNameFromDN(credential.getSubjectX500Principal());
108 if (legacyName == null) {
109 log.error("Unable to extract legacy requester name from certificate subject.");
112 log.info("Request from legacy service provider: (" + legacyName + ").");
117 // See if we have metadata for this provider
118 EntityDescriptor provider = support.lookup(relyingParty.getProviderId());
119 if (provider == null) {
120 log.info("No metadata found for provider: (" + relyingParty.getProviderId() + ").");
121 log.info("Treating remote provider as unauthenticated.");
125 // Make sure that the suppplied credential is valid for the
126 // selected relying party
127 if (isValidCredential(provider, credential)) {
128 log.info("Supplied credential validated for this provider.");
129 log.info("Request from service provider: (" + relyingParty.getProviderId() + ").");
130 return relyingParty.getProviderId();
132 log.error("Supplied credential ("
133 + credential.getSubjectX500Principal().getName(X500Principal.RFC2253)
134 + ") is NOT valid for provider (" + relyingParty.getProviderId() + ").");
135 throw new InvalidProviderCredentialException("Invalid credential.");
142 * @see edu.internet2.middleware.shibboleth.idp.ProtocolHandler#processRequest(javax.servlet.http.HttpServletRequest,
143 * javax.servlet.http.HttpServletResponse, org.opensaml.SAMLRequest,
144 * edu.internet2.middleware.shibboleth.idp.ProtocolSupport)
146 public SAMLResponse processRequest(HttpServletRequest request, HttpServletResponse response,
147 SAMLRequest samlRequest, IdPProtocolSupport support) throws SAMLException, IOException, ServletException {
149 if (samlRequest.getQuery() == null || !(samlRequest.getQuery() instanceof SAMLAttributeQuery)) {
150 log.error("Protocol Handler can only respond to SAML Attribute Queries.");
151 throw new SAMLException(SAMLException.RESPONDER, "General error processing request.");
154 RelyingParty relyingParty = null;
156 SAMLAttributeQuery attributeQuery = (SAMLAttributeQuery) samlRequest.getQuery();
158 if (!fromLegacyProvider(request)) {
159 log.info("Remote provider has identified itself as: (" + attributeQuery.getResource() + ").");
162 // This is the requester name that will be passed to subsystems
163 String effectiveName = null;
165 X509Certificate credential = getCredentialFromProvider(request);
166 if (credential == null || credential.getSubjectX500Principal().getName(X500Principal.RFC2253).equals("")) {
167 log.info("Request is from an unauthenticated service provider.");
170 // Identify a Relying Party
171 relyingParty = support.getServiceProviderMapper().getRelyingParty(attributeQuery.getResource());
174 effectiveName = getEffectiveName(request, relyingParty, support);
175 } catch (InvalidProviderCredentialException ipc) {
176 throw new SAMLException(SAMLException.REQUESTER, "Invalid credentials for request.");
180 if (effectiveName == null) {
181 log.debug("Using default Relying Party for unauthenticated provider.");
182 relyingParty = support.getServiceProviderMapper().getRelyingParty(null);
185 // Fail if we can't honor SAML Subject Confirmation
186 if (!fromLegacyProvider(request)) {
187 Iterator iterator = attributeQuery.getSubject().getConfirmationMethods();
188 boolean hasConfirmationMethod = false;
189 while (iterator.hasNext()) {
190 log.info("Request contains SAML Subject Confirmation method: (" + (String) iterator.next() + ").");
192 if (hasConfirmationMethod) { throw new SAMLException(SAMLException.REQUESTER,
193 "This SAML authority cannot honor requests containing the supplied SAML Subject Confirmation Method."); }
196 // Map Subject to local principal
199 principal = support.getNameMapper().getPrincipal(attributeQuery.getSubject().getName(), relyingParty,
200 relyingParty.getIdentityProvider());
202 log.info("Request is for principal (" + principal.getName() + ").");
204 SAMLAttribute[] attrs;
205 Iterator requestedAttrsIterator = attributeQuery.getDesignators();
206 if (requestedAttrsIterator.hasNext()) {
207 log.info("Request designates specific attributes, resolving this set.");
208 ArrayList requestedAttrs = new ArrayList();
209 while (requestedAttrsIterator.hasNext()) {
210 SAMLAttributeDesignator attribute = (SAMLAttributeDesignator) requestedAttrsIterator.next();
212 log.debug("Designated attribute: (" + attribute.getName() + ")");
213 requestedAttrs.add(new URI(attribute.getName()));
214 } catch (URISyntaxException use) {
215 log.error("Request designated an attribute name that does not conform "
216 + "to the required URI syntax (" + attribute.getName() + "). Ignoring this attribute");
220 attrs = support.getReleaseAttributes(principal, effectiveName, null, (URI[]) requestedAttrs
221 .toArray(new URI[0]));
223 log.info("Request does not designate specific attributes, resolving all available.");
224 attrs = support.getReleaseAttributes(principal, effectiveName, null);
227 log.info("Found " + attrs.length + " attribute(s) for " + principal.getName());
229 SAMLResponse samlResponse = null;
231 if (attrs == null || attrs.length == 0) {
232 // No attribute found
233 samlResponse = new SAMLResponse(samlRequest.getId(), null, null, null);
236 // Reference requested subject
237 SAMLSubject rSubject = (SAMLSubject) attributeQuery.getSubject().clone();
239 ArrayList audiences = new ArrayList();
240 if (relyingParty.getProviderId() != null) {
241 audiences.add(relyingParty.getProviderId());
243 if (relyingParty.getName() != null && !relyingParty.getName().equals(relyingParty.getProviderId())) {
244 audiences.add(relyingParty.getName());
246 SAMLCondition condition = new SAMLAudienceRestrictionCondition(audiences);
248 // Put all attributes into an assertion
249 SAMLStatement statement = new SAMLAttributeStatement(rSubject, Arrays.asList(attrs));
251 // Set assertion expiration to longest attribute expiration
253 for (int i = 0; i < attrs.length; i++) {
254 if (max < attrs[i].getLifetime()) {
255 max = attrs[i].getLifetime();
258 Date now = new Date();
259 Date then = new Date(now.getTime() + (max * 1000)); // max is in
262 SAMLAssertion sAssertion = new SAMLAssertion(relyingParty.getIdentityProvider().getProviderId(), now,
263 then, Collections.singleton(condition), null, Collections.singleton(statement));
265 samlResponse = new SAMLResponse(samlRequest.getId(), null, Collections.singleton(sAssertion), null);
266 IdPProtocolSupport.addSignatures(samlResponse, relyingParty, support.lookup(relyingParty
267 .getProviderId()), false);
270 if (log.isDebugEnabled()) { // This takes some processing, so only do it if we need to
272 log.debug("Dumping generated SAML Response:"
273 + System.getProperty("line.separator")
275 new BASE64Decoder().decodeBuffer(new String(samlResponse.toBase64(), "ASCII")),
277 } catch (SAMLException e) {
278 log.error("Encountered an error while decoding SAMLReponse for logging purposes.");
279 } catch (IOException e) {
280 log.error("Encountered an error while decoding SAMLReponse for logging purposes.");
284 log.info("Successfully created response for principal (" + principal.getName() + ").");
286 if (effectiveName == null) {
287 if (fromLegacyProvider(request)) {
288 support.getTransactionLog().info(
289 "Attribute assertion issued to anonymous legacy provider at (" + request.getRemoteAddr()
290 + ") on behalf of principal (" + principal.getName() + ").");
292 support.getTransactionLog().info(
293 "Attribute assertion issued to anonymous provider at (" + request.getRemoteAddr()
294 + ") on behalf of principal (" + principal.getName() + ").");
297 if (fromLegacyProvider(request)) {
298 support.getTransactionLog().info(
299 "Attribute assertion issued to legacy provider (" + effectiveName
300 + ") on behalf of principal (" + principal.getName() + ").");
302 support.getTransactionLog().info(
303 "Attribute assertion issued to provider (" + effectiveName + ") on behalf of principal ("
304 + principal.getName() + ").");
310 } catch (SAMLException e) {
311 if (relyingParty.passThruErrors()) {
312 throw new SAMLException(SAMLException.RESPONDER, "General error processing request.", e);
314 throw new SAMLException(SAMLException.RESPONDER, "General error processing request.");
317 } catch (InvalidNameIdentifierException e) {
318 log.error("Could not associate the request's subject with a principal: " + e);
319 if (relyingParty.passThruErrors()) {
320 throw new SAMLException(Arrays.asList(e.getSAMLErrorCodes()), "The supplied Subject was unrecognized.",
323 throw new SAMLException(Arrays.asList(e.getSAMLErrorCodes()), "The supplied Subject was unrecognized.");
326 } catch (NameIdentifierMappingException e) {
327 log.error("Encountered an error while mapping the name identifier from the request: " + e);
328 if (relyingParty.passThruErrors()) {
329 throw new SAMLException(SAMLException.RESPONDER, "General error processing request.", e);
331 throw new SAMLException(SAMLException.RESPONDER, "General error processing request.");
334 } catch (AAException e) {
335 log.error("Encountered an error while resolving resolving attributes: " + e);
336 if (relyingParty.passThruErrors()) {
337 throw new SAMLException(SAMLException.RESPONDER, "General error processing request.", e);
339 throw new SAMLException(SAMLException.RESPONDER, "General error processing request.");
342 } catch (CloneNotSupportedException e) {
343 log.error("Encountered an error while cloning request subject for use in response: " + e);
344 if (relyingParty.passThruErrors()) {
345 throw new SAMLException(SAMLException.RESPONDER, "General error processing request.", e);
347 throw new SAMLException(SAMLException.RESPONDER, "General error processing request.");
352 private static boolean fromLegacyProvider(HttpServletRequest request) {
354 String version = request.getHeader("Shibboleth");
355 if (version != null) {
356 log.debug("Request from Shibboleth version: " + version);
359 log.debug("No version header found.");