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.
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26 package edu.internet2.middleware.shibboleth.idp;
30 import java.security.Principal;
31 import java.util.ArrayList;
32 import java.util.Arrays;
33 import java.util.Iterator;
35 import org.apache.log4j.Logger;
36 import org.apache.xml.security.signature.XMLSignature;
37 import org.opensaml.InvalidCryptoException;
38 import org.opensaml.SAMLAssertion;
39 import org.opensaml.SAMLAttribute;
40 import org.opensaml.SAMLException;
41 import org.opensaml.SAMLResponse;
42 import org.opensaml.artifact.Artifact;
43 import org.w3c.dom.Element;
45 import edu.internet2.middleware.shibboleth.aa.AAAttribute;
46 import edu.internet2.middleware.shibboleth.aa.AAAttributeSet;
47 import edu.internet2.middleware.shibboleth.aa.AAException;
48 import edu.internet2.middleware.shibboleth.aa.arp.ArpEngine;
49 import edu.internet2.middleware.shibboleth.aa.arp.ArpProcessingException;
50 import edu.internet2.middleware.shibboleth.aa.attrresolv.AttributeResolver;
51 import edu.internet2.middleware.shibboleth.artifact.ArtifactMapper;
52 import edu.internet2.middleware.shibboleth.artifact.provider.MemoryArtifactMapper;
53 import edu.internet2.middleware.shibboleth.common.Credential;
54 import edu.internet2.middleware.shibboleth.common.NameMapper;
55 import edu.internet2.middleware.shibboleth.common.RelyingParty;
56 import edu.internet2.middleware.shibboleth.common.ServiceProviderMapper;
57 import edu.internet2.middleware.shibboleth.common.ShibbolethConfigurationException;
58 import edu.internet2.middleware.shibboleth.metadata.EntityDescriptor;
59 import edu.internet2.middleware.shibboleth.metadata.Metadata;
60 import edu.internet2.middleware.shibboleth.metadata.MetadataException;
63 * Delivers core IdP functionality (Attribute resolution, ARP filtering, Metadata lookup, Signing, Mapping between local &
64 * SAML identifiers, etc.) to components that process protocol-specific requests.
66 * @author Walter Hoehn
68 public class IdPProtocolSupport implements Metadata {
70 private static Logger log = Logger.getLogger(IdPProtocolSupport.class.getName());
71 private Logger transactionLog;
72 private IdPConfig config;
73 private ArrayList fedMetadata = new ArrayList();
74 private NameMapper nameMapper;
75 private ServiceProviderMapper spMapper;
76 private ArpEngine arpEngine;
77 private AttributeResolver resolver;
78 private ArtifactMapper artifactMapper;
79 private Semaphore throttle;
81 IdPProtocolSupport(IdPConfig config, Logger transactionLog, NameMapper nameMapper, ServiceProviderMapper spMapper,
82 ArpEngine arpEngine, AttributeResolver resolver) throws ShibbolethConfigurationException {
84 this.transactionLog = transactionLog;
86 this.nameMapper = nameMapper;
87 this.spMapper = spMapper;
88 spMapper.setMetadata(this);
89 this.arpEngine = arpEngine;
90 this.resolver = resolver;
91 // TODO make this pluggable... and clean up memory impl
92 artifactMapper = new MemoryArtifactMapper();
94 // Load a semaphore that throttles how many requests the IdP will handle at once
95 throttle = new Semaphore(config.getMaxThreads());
98 public Logger getTransactionLog() {
100 return transactionLog;
103 public IdPConfig getIdPConfig() {
108 public NameMapper getNameMapper() {
113 public ServiceProviderMapper getServiceProviderMapper() {
118 public void signAssertions(SAMLAssertion[] assertions, RelyingParty relyingParty) throws InvalidCryptoException,
121 if (relyingParty.getIdentityProvider().getSigningCredential() == null
122 || relyingParty.getIdentityProvider().getSigningCredential().getPrivateKey() == null) { throw new InvalidCryptoException(
123 SAMLException.RESPONDER, "Invalid signing credential."); }
125 for (int i = 0; i < assertions.length; i++) {
126 String assertionAlgorithm;
127 if (relyingParty.getIdentityProvider().getSigningCredential().getCredentialType() == Credential.RSA) {
128 assertionAlgorithm = XMLSignature.ALGO_ID_SIGNATURE_RSA_SHA1;
129 } else if (relyingParty.getIdentityProvider().getSigningCredential().getCredentialType() == Credential.DSA) {
130 assertionAlgorithm = XMLSignature.ALGO_ID_SIGNATURE_DSA;
132 throw new InvalidCryptoException(SAMLException.RESPONDER,
133 "The Shibboleth IdP currently only supports signing with RSA and DSA keys.");
138 assertions[i].sign(assertionAlgorithm, relyingParty.getIdentityProvider().getSigningCredential()
139 .getPrivateKey(), Arrays.asList(relyingParty.getIdentityProvider().getSigningCredential()
140 .getX509CertificateChain()));
147 public void signResponse(SAMLResponse response, RelyingParty relyingParty) throws SAMLException {
149 // Make sure we have an appropriate credential
150 if (relyingParty.getIdentityProvider().getSigningCredential() == null
151 || relyingParty.getIdentityProvider().getSigningCredential().getPrivateKey() == null) { throw new InvalidCryptoException(
152 SAMLException.RESPONDER, "Invalid signing credential."); }
155 String responseAlgorithm;
156 if (relyingParty.getIdentityProvider().getSigningCredential().getCredentialType() == Credential.RSA) {
157 responseAlgorithm = XMLSignature.ALGO_ID_SIGNATURE_RSA_SHA1;
158 } else if (relyingParty.getIdentityProvider().getSigningCredential().getCredentialType() == Credential.DSA) {
159 responseAlgorithm = XMLSignature.ALGO_ID_SIGNATURE_DSA;
161 throw new InvalidCryptoException(SAMLException.RESPONDER,
162 "The Shibboleth IdP currently only supports signing with RSA and DSA keys.");
166 response.sign(responseAlgorithm, relyingParty.getIdentityProvider().getSigningCredential().getPrivateKey(),
167 Arrays.asList(relyingParty.getIdentityProvider().getSigningCredential().getX509CertificateChain()));
173 protected void addFederationProvider(Element element) {
175 log.debug("Found Federation Provider configuration element.");
176 if (!element.getTagName().equals("FederationProvider")) {
177 log.error("Error while attemtping to load Federation Provider. Malformed provider specificaion.");
182 fedMetadata.add(FederationProviderFactory.loadProvider(element));
183 } catch (MetadataException e) {
184 log.error("Unable to load Federation Provider. Skipping...");
188 public int providerCount() {
190 return fedMetadata.size();
193 public EntityDescriptor lookup(String providerId) {
195 Iterator iterator = fedMetadata.iterator();
196 while (iterator.hasNext()) {
197 EntityDescriptor provider = ((Metadata) iterator.next()).lookup(providerId);
198 if (provider != null) { return provider; }
203 public EntityDescriptor lookup(Artifact artifact) {
205 Iterator iterator = fedMetadata.iterator();
206 while (iterator.hasNext()) {
207 EntityDescriptor provider = ((Metadata) iterator.next()).lookup(artifact);
208 if (provider != null) { return provider; }
213 public SAMLAttribute[] getReleaseAttributes(Principal principal, String requester, URL resource) throws AAException {
216 URI[] potentialAttributes = arpEngine.listPossibleReleaseAttributes(principal, requester, resource);
217 return getReleaseAttributes(principal, requester, resource, potentialAttributes);
219 } catch (ArpProcessingException e) {
220 log.error("An error occurred while processing the ARPs for principal (" + principal.getName() + ") :"
222 throw new AAException("Error retrieving data for principal.");
226 public SAMLAttribute[] getReleaseAttributes(Principal principal, String requester, URL resource,
227 URI[] attributeNames) throws AAException {
230 AAAttributeSet attributeSet = new AAAttributeSet();
231 for (int i = 0; i < attributeNames.length; i++) {
232 AAAttribute attribute = new AAAttribute(attributeNames[i].toString());
233 attributeSet.add(attribute);
236 return resolveAttributes(principal, requester, resource, attributeSet);
238 } catch (SAMLException e) {
239 log.error("An error occurred while creating attributes for principal (" + principal.getName() + ") :"
241 throw new AAException("Error retrieving data for principal.");
243 } catch (ArpProcessingException e) {
244 log.error("An error occurred while processing the ARPs for principal (" + principal.getName() + ") :"
246 throw new AAException("Error retrieving data for principal.");
250 private SAMLAttribute[] resolveAttributes(Principal principal, String requester, URL resource,
251 AAAttributeSet attributeSet) throws ArpProcessingException {
253 resolver.resolveAttributes(principal, requester, attributeSet);
254 arpEngine.filterAttributes(attributeSet, principal, requester, resource);
255 return attributeSet.getAttributes();
259 * Cleanup resources that won't be released when this object is garbage-collected
261 public void destroy() {
267 public ArtifactMapper getArtifactMapper() {
269 return artifactMapper;
272 private class Semaphore {
276 public Semaphore(int value) {
281 public synchronized void enter() {
287 } catch (InterruptedException e) {
288 // squelch and continue
293 public synchronized void exit() {