Reworked name mapping configuration:
[java-idp.git] / src / edu / internet2 / middleware / shibboleth / idp / provider / SAMLv1_AttributeQueryHandler.java
1 /*
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
17  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT ARE
18  * DISCLAIMED AND THE ENTIRE RISK OF SATISFACTORY QUALITY, PERFORMANCE, ACCURACY, AND EFFORT IS WITH LICENSEE. IN NO
19  * EVENT SHALL THE COPYRIGHT OWNER, CONTRIBUTORS OR THE UNIVERSITY CORPORATION FOR ADVANCED INTERNET DEVELOPMENT, INC.
20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
23  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24  */
25
26 package edu.internet2.middleware.shibboleth.idp.provider;
27
28 import java.io.IOException;
29 import java.net.URI;
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;
38
39 import javax.security.auth.x500.X500Principal;
40 import javax.servlet.ServletException;
41 import javax.servlet.http.HttpServletRequest;
42 import javax.servlet.http.HttpServletResponse;
43
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.SAMLNameIdentifier;
54 import org.opensaml.SAMLRequest;
55 import org.opensaml.SAMLResponse;
56 import org.opensaml.SAMLStatement;
57 import org.opensaml.SAMLSubject;
58 import org.w3c.dom.Element;
59
60 import edu.internet2.middleware.shibboleth.aa.AAException;
61 import edu.internet2.middleware.shibboleth.common.InvalidNameIdentifierException;
62 import edu.internet2.middleware.shibboleth.common.NameIdentifierMapping;
63 import edu.internet2.middleware.shibboleth.common.NameIdentifierMappingException;
64 import edu.internet2.middleware.shibboleth.common.RelyingParty;
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;
69 import edu.internet2.middleware.shibboleth.metadata.RoleDescriptor;
70 import edu.internet2.middleware.shibboleth.metadata.SPSSODescriptor;
71
72 /**
73  * @author Walter Hoehn
74  */
75 public class SAMLv1_AttributeQueryHandler extends BaseServiceHandler implements IdPProtocolHandler {
76
77         private static Logger log = Logger.getLogger(SAMLv1_AttributeQueryHandler.class.getName());
78
79         /**
80          * Required DOM-based constructor.
81          */
82         public SAMLv1_AttributeQueryHandler(Element config) throws ShibbolethConfigurationException {
83
84                 super(config);
85         }
86
87         /*
88          * @see edu.internet2.middleware.shibboleth.idp.ProtocolHandler#getHandlerName()
89          */
90         public String getHandlerName() {
91
92                 return "SAML v1.1 Attribute Query";
93         }
94
95         private String getEffectiveName(HttpServletRequest req, RelyingParty relyingParty, IdPProtocolSupport support)
96                         throws InvalidProviderCredentialException {
97
98                 X509Certificate credential = getCredentialFromProvider(req);
99
100                 if (credential == null || credential.getSubjectX500Principal().getName(X500Principal.RFC2253).equals("")) {
101                         log.info("Request is from an unauthenticated service provider.");
102                         return null;
103
104                 } else {
105                         log.info("Request contains credential: ("
106                                         + credential.getSubjectX500Principal().getName(X500Principal.RFC2253) + ").");
107                         // Mockup old requester name for requests from < 1.2 SPs
108                         if (fromLegacyProvider(req)) {
109                                 String legacyName = getHostNameFromDN(credential.getSubjectX500Principal());
110                                 if (legacyName == null) {
111                                         log.error("Unable to extract legacy requester name from certificate subject.");
112                                 }
113
114                                 log.info("Request from legacy service provider: (" + legacyName + ").");
115                                 return legacyName;
116
117                         } else {
118
119                                 // See if we have metadata for this provider
120                                 EntityDescriptor provider = support.lookup(relyingParty.getProviderId());
121                                 if (provider == null) {
122                                         log.info("No metadata found for provider: (" + relyingParty.getProviderId() + ").");
123                                         log.info("Treating remote provider as unauthenticated.");
124                                         return null;
125                                 }
126                                 RoleDescriptor role = provider.getSPSSODescriptor("urn:oasis:names:tc:SAML:1.1:protocol");
127                                 if (role == null) {
128                                         log.info("SPSSO role not found in metadata for provider: (" + relyingParty.getProviderId() + ").");
129                                         log.info("Treating remote provider as unauthenticated.");
130                                         return null;
131                                 }
132
133                                 // Make sure that the suppplied credential is valid for the
134                                 // selected relying party
135                                 X509Certificate[] chain = (X509Certificate[]) req.getAttribute("javax.servlet.request.X509Certificate");
136                                 if (support.getTrust().validate((chain != null && chain.length > 0) ? chain[0] : null, chain, role)) {
137                                         log.info("Supplied credential validated for this provider.");
138                                         log.info("Request from service provider: (" + relyingParty.getProviderId() + ").");
139                                         return relyingParty.getProviderId();
140
141                                 } else {
142                                         log.error("Supplied credential ("
143                                                         + credential.getSubjectX500Principal().getName(X500Principal.RFC2253)
144                                                         + ") is NOT valid for provider (" + relyingParty.getProviderId() + ").");
145                                         throw new InvalidProviderCredentialException("Invalid credential.");
146                                 }
147                         }
148                 }
149         }
150
151         /*
152          * @see edu.internet2.middleware.shibboleth.idp.ProtocolHandler#processRequest(javax.servlet.http.HttpServletRequest,
153          *      javax.servlet.http.HttpServletResponse, org.opensaml.SAMLRequest,
154          *      edu.internet2.middleware.shibboleth.idp.ProtocolSupport)
155          */
156         public SAMLResponse processRequest(HttpServletRequest request, HttpServletResponse response,
157                         SAMLRequest samlRequest, IdPProtocolSupport support) throws SAMLException, IOException, ServletException {
158
159                 if (samlRequest.getQuery() == null || !(samlRequest.getQuery() instanceof SAMLAttributeQuery)) {
160                         log.error("Protocol Handler can only respond to SAML Attribute Queries.");
161                         throw new SAMLException(SAMLException.RESPONDER, "General error processing request.");
162                 }
163
164                 RelyingParty relyingParty = null;
165
166                 SAMLAttributeQuery attributeQuery = (SAMLAttributeQuery) samlRequest.getQuery();
167
168                 if (!fromLegacyProvider(request)) {
169                         log.info("Remote provider has identified itself as: (" + attributeQuery.getResource() + ").");
170                 }
171
172                 // This is the requester name that will be passed to subsystems
173                 String effectiveName = null;
174
175                 X509Certificate credential = getCredentialFromProvider(request);
176                 if (credential == null || credential.getSubjectX500Principal().getName(X500Principal.RFC2253).equals("")) {
177                         log.info("Request is from an unauthenticated service provider.");
178                 } else {
179
180                         // Identify a Relying Party
181                         relyingParty = support.getServiceProviderMapper().getRelyingParty(attributeQuery.getResource());
182
183                         try {
184                                 effectiveName = getEffectiveName(request, relyingParty, support);
185                         } catch (InvalidProviderCredentialException ipc) {
186                                 throw new SAMLException(SAMLException.REQUESTER, "Invalid credentials for request.");
187                         }
188                 }
189
190                 if (effectiveName == null) {
191                         log.debug("Using default Relying Party for unauthenticated provider.");
192                         relyingParty = support.getServiceProviderMapper().getRelyingParty(null);
193                 }
194
195                 // Fail if we can't honor SAML Subject Confirmation
196                 if (!fromLegacyProvider(request)) {
197                         Iterator iterator = attributeQuery.getSubject().getConfirmationMethods();
198                         boolean hasConfirmationMethod = false;
199                         while (iterator.hasNext()) {
200                                 log.info("Request contains SAML Subject Confirmation method: (" + (String) iterator.next() + ").");
201                         }
202                         if (hasConfirmationMethod) { throw new SAMLException(SAMLException.REQUESTER,
203                                         "This SAML authority cannot honor requests containing the supplied SAML Subject Confirmation Method."); }
204                 }
205
206                 // Map Subject to local principal
207                 Principal principal = null;
208                 try {
209                         SAMLNameIdentifier nameId = attributeQuery.getSubject().getNameIdentifier();
210                         log.debug("Name Identifier format: (" + nameId.getFormat() + ").");
211                         NameIdentifierMapping mapping = null;
212                         try {
213                                 mapping = support.getNameMapper().getNameIdentifierMapping(new URI(nameId.getFormat()));
214                         } catch (URISyntaxException e) {
215                                 log.error("Invalid Name Identifier format.");
216                         }
217                         if (mapping == null) { throw new NameIdentifierMappingException("Name Identifier format not registered."); }
218
219                         // Don't honor the request if the active relying party configuration does not contain a mapping with the
220                         // name identifier format from the request
221                         if (!Arrays.asList(relyingParty.getNameMapperIds()).contains(mapping.getId())) { throw new NameIdentifierMappingException(
222                                         "Name Identifier format not valid for this relying party."); }
223
224                         principal = mapping.getPrincipal(nameId, relyingParty, relyingParty.getIdentityProvider());
225                         log.info("Request is for principal (" + principal.getName() + ").");
226
227                         // Get attributes from resolver
228                         SAMLAttribute[] attrs;
229                         Iterator requestedAttrsIterator = attributeQuery.getDesignators();
230                         if (requestedAttrsIterator.hasNext()) {
231                                 log.info("Request designates specific attributes, resolving this set.");
232                                 ArrayList requestedAttrs = new ArrayList();
233                                 while (requestedAttrsIterator.hasNext()) {
234                                         SAMLAttributeDesignator attribute = (SAMLAttributeDesignator) requestedAttrsIterator.next();
235                                         try {
236                                                 log.debug("Designated attribute: (" + attribute.getName() + ")");
237                                                 requestedAttrs.add(new URI(attribute.getName()));
238                                         } catch (URISyntaxException use) {
239                                                 log.error("Request designated an attribute name that does not conform "
240                                                                 + "to the required URI syntax (" + attribute.getName() + ").  Ignoring this attribute");
241                                         }
242                                 }
243
244                                 attrs = support.getReleaseAttributes(principal, relyingParty, effectiveName, null,
245                                                 (URI[]) requestedAttrs.toArray(new URI[0]));
246                         } else {
247                                 log.info("Request does not designate specific attributes, resolving all available.");
248                                 attrs = support.getReleaseAttributes(principal, relyingParty, effectiveName, null);
249                         }
250
251                         log.info("Found " + attrs.length + " attribute(s) for " + principal.getName());
252
253                         SAMLResponse samlResponse = null;
254
255                         if (attrs == null || attrs.length == 0) {
256                                 // No attribute found
257                                 samlResponse = new SAMLResponse(samlRequest.getId(), null, null, null);
258
259                         } else {
260                                 // Reference requested subject
261                                 SAMLSubject rSubject = (SAMLSubject) attributeQuery.getSubject().clone();
262
263                                 ArrayList audiences = new ArrayList();
264                                 if (relyingParty.getProviderId() != null) {
265                                         audiences.add(relyingParty.getProviderId());
266                                 }
267                                 if (relyingParty.getName() != null && !relyingParty.getName().equals(relyingParty.getProviderId())) {
268                                         audiences.add(relyingParty.getName());
269                                 }
270                                 SAMLCondition condition = new SAMLAudienceRestrictionCondition(audiences);
271
272                                 // Put all attributes into an assertion
273                                 SAMLStatement statement = new SAMLAttributeStatement(rSubject, Arrays.asList(attrs));
274
275                                 // Set assertion expiration to longest attribute expiration
276                                 long max = 0;
277                                 for (int i = 0; i < attrs.length; i++) {
278                                         if (max < attrs[i].getLifetime()) {
279                                                 max = attrs[i].getLifetime();
280                                         }
281                                 }
282                                 Date now = new Date();
283                                 Date then = new Date(now.getTime() + (max * 1000)); // max is in
284                                 // seconds
285
286                                 SAMLAssertion sAssertion = new SAMLAssertion(relyingParty.getIdentityProvider().getProviderId(), now,
287                                                 then, Collections.singleton(condition), null, Collections.singleton(statement));
288
289                                 // Sign the assertions, if necessary
290                                 boolean metaDataIndicatesSignAssertions = false;
291                                 EntityDescriptor descriptor = support.lookup(relyingParty.getProviderId());
292                                 if (descriptor != null) {
293                                         SPSSODescriptor sp = descriptor.getSPSSODescriptor(org.opensaml.XML.SAML11_PROTOCOL_ENUM);
294                                         if (sp != null) {
295                                                 if (sp.getWantAssertionsSigned()) {
296                                                         metaDataIndicatesSignAssertions = true;
297                                                 }
298                                         }
299                                 }
300                                 if (relyingParty.wantsAssertionsSigned() || metaDataIndicatesSignAssertions) {
301                                         support.signAssertions(new SAMLAssertion[]{sAssertion}, relyingParty);
302                                 }
303
304                                 samlResponse = new SAMLResponse(samlRequest.getId(), null, Collections.singleton(sAssertion), null);
305                         }
306
307                         if (log.isDebugEnabled()) { // This takes some processing, so only do it if we need to
308                                 log.debug("Dumping generated SAML Response:" + System.getProperty("line.separator")
309                                                 + samlResponse.toString());
310                         }
311
312                         log.info("Successfully created response for principal (" + principal.getName() + ").");
313
314                         if (effectiveName == null) {
315                                 if (fromLegacyProvider(request)) {
316                                         support.getTransactionLog().info(
317                                                         "Attribute assertion issued to anonymous legacy provider at (" + request.getRemoteAddr()
318                                                                         + ") on behalf of principal (" + principal.getName() + ").");
319                                 } else {
320                                         support.getTransactionLog().info(
321                                                         "Attribute assertion issued to anonymous provider at (" + request.getRemoteAddr()
322                                                                         + ") on behalf of principal (" + principal.getName() + ").");
323                                 }
324                         } else {
325                                 if (fromLegacyProvider(request)) {
326                                         support.getTransactionLog().info(
327                                                         "Attribute assertion issued to legacy provider (" + effectiveName
328                                                                         + ") on behalf of principal (" + principal.getName() + ").");
329                                 } else {
330                                         support.getTransactionLog().info(
331                                                         "Attribute assertion issued to provider (" + effectiveName + ") on behalf of principal ("
332                                                                         + principal.getName() + ").");
333                                 }
334                         }
335
336                         return samlResponse;
337
338                 } catch (SAMLException e) {
339                         if (relyingParty.passThruErrors()) {
340                                 throw new SAMLException(SAMLException.RESPONDER, "General error processing request.", e);
341                         } else {
342                                 throw new SAMLException(SAMLException.RESPONDER, "General error processing request.");
343                         }
344
345                 } catch (InvalidNameIdentifierException e) {
346                         log.error("Could not associate the request's subject with a principal: " + e);
347                         if (relyingParty.passThruErrors()) {
348                                 throw new SAMLException(Arrays.asList(e.getSAMLErrorCodes()), "The supplied Subject was unrecognized.",
349                                                 e);
350                         } else {
351                                 throw new SAMLException(Arrays.asList(e.getSAMLErrorCodes()), "The supplied Subject was unrecognized.");
352                         }
353
354                 } catch (NameIdentifierMappingException e) {
355                         log.error("Encountered an error while mapping the name identifier from the request: " + e);
356                         if (relyingParty.passThruErrors()) {
357                                 throw new SAMLException(SAMLException.RESPONDER, "General error processing request.", e);
358                         } else {
359                                 throw new SAMLException(SAMLException.RESPONDER, "General error processing request.");
360                         }
361
362                 } catch (AAException e) {
363                         log.error("Encountered an error while resolving resolving attributes: " + e);
364                         if (relyingParty.passThruErrors()) {
365                                 throw new SAMLException(SAMLException.RESPONDER, "General error processing request.", e);
366                         } else {
367                                 throw new SAMLException(SAMLException.RESPONDER, "General error processing request.");
368                         }
369
370                 } catch (CloneNotSupportedException e) {
371                         log.error("Encountered an error while cloning request subject for use in response: " + e);
372                         if (relyingParty.passThruErrors()) {
373                                 throw new SAMLException(SAMLException.RESPONDER, "General error processing request.", e);
374                         } else {
375                                 throw new SAMLException(SAMLException.RESPONDER, "General error processing request.");
376                         }
377                 }
378         }
379
380         private static boolean fromLegacyProvider(HttpServletRequest request) {
381
382                 String version = request.getHeader("Shibboleth");
383                 if (version != null) {
384                         log.debug("Request from Shibboleth version: " + version);
385                         return false;
386                 }
387                 log.debug("No version header found.");
388                 return true;
389         }
390
391 }