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.
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.common.Credential;
53 import edu.internet2.middleware.shibboleth.common.NameMapper;
54 import edu.internet2.middleware.shibboleth.common.RelyingParty;
55 import edu.internet2.middleware.shibboleth.common.ServiceProviderMapper;
56 import edu.internet2.middleware.shibboleth.common.ShibbolethConfigurationException;
57 import edu.internet2.middleware.shibboleth.common.provider.ShibbolethTrust;
58 import edu.internet2.middleware.shibboleth.common.Trust;
59 import edu.internet2.middleware.shibboleth.metadata.EntityDescriptor;
60 import edu.internet2.middleware.shibboleth.metadata.Metadata;
61 import edu.internet2.middleware.shibboleth.metadata.MetadataException;
64 * Delivers core IdP functionality (Attribute resolution, ARP filtering, Metadata lookup, Signing, Mapping between local &
65 * SAML identifiers, etc.) to components that process protocol-specific requests.
67 * @author Walter Hoehn
69 public class IdPProtocolSupport implements Metadata {
71 private static Logger log = Logger.getLogger(IdPProtocolSupport.class.getName());
72 private Logger transactionLog;
73 private IdPConfig config;
74 private ArrayList metadata = new ArrayList();
75 private NameMapper nameMapper;
76 private ServiceProviderMapper spMapper;
77 private ArpEngine arpEngine;
78 private AttributeResolver resolver;
79 private ArtifactMapper artifactMapper;
80 private Semaphore throttle;
81 private Trust trust = new ShibbolethTrust();
83 IdPProtocolSupport(IdPConfig config, Logger transactionLog, NameMapper nameMapper, ServiceProviderMapper spMapper,
84 ArpEngine arpEngine, AttributeResolver resolver, ArtifactMapper artifactMapper)
85 throws ShibbolethConfigurationException {
87 this.transactionLog = transactionLog;
89 this.nameMapper = nameMapper;
90 this.spMapper = spMapper;
91 spMapper.setMetadata(this);
92 this.arpEngine = arpEngine;
93 this.resolver = resolver;
94 this.artifactMapper = artifactMapper;
96 // Load a semaphore that throttles how many requests the IdP will handle at once
97 throttle = new Semaphore(config.getMaxThreads());
100 public Logger getTransactionLog() {
102 return transactionLog;
105 public IdPConfig getIdPConfig() {
110 public NameMapper getNameMapper() {
115 public ServiceProviderMapper getServiceProviderMapper() {
120 public void signAssertions(SAMLAssertion[] assertions, RelyingParty relyingParty) throws InvalidCryptoException,
123 if (relyingParty.getIdentityProvider().getSigningCredential() == null
124 || relyingParty.getIdentityProvider().getSigningCredential().getPrivateKey() == null) { throw new InvalidCryptoException(
125 SAMLException.RESPONDER, "Invalid signing credential."); }
127 for (int i = 0; i < assertions.length; i++) {
128 String assertionAlgorithm;
129 if (relyingParty.getIdentityProvider().getSigningCredential().getCredentialType() == Credential.RSA) {
130 assertionAlgorithm = XMLSignature.ALGO_ID_SIGNATURE_RSA_SHA1;
131 } else if (relyingParty.getIdentityProvider().getSigningCredential().getCredentialType() == Credential.DSA) {
132 assertionAlgorithm = XMLSignature.ALGO_ID_SIGNATURE_DSA;
134 throw new InvalidCryptoException(SAMLException.RESPONDER,
135 "The Shibboleth IdP currently only supports signing with RSA and DSA keys.");
140 assertions[i].sign(assertionAlgorithm, relyingParty.getIdentityProvider().getSigningCredential()
141 .getPrivateKey(), Arrays.asList(relyingParty.getIdentityProvider().getSigningCredential()
142 .getX509CertificateChain()));
149 public void signResponse(SAMLResponse response, RelyingParty relyingParty) throws SAMLException {
151 // Make sure we have an appropriate credential
152 if (relyingParty.getIdentityProvider().getSigningCredential() == null
153 || relyingParty.getIdentityProvider().getSigningCredential().getPrivateKey() == null) { throw new InvalidCryptoException(
154 SAMLException.RESPONDER, "Invalid signing credential."); }
157 String responseAlgorithm;
158 if (relyingParty.getIdentityProvider().getSigningCredential().getCredentialType() == Credential.RSA) {
159 responseAlgorithm = XMLSignature.ALGO_ID_SIGNATURE_RSA_SHA1;
160 } else if (relyingParty.getIdentityProvider().getSigningCredential().getCredentialType() == Credential.DSA) {
161 responseAlgorithm = XMLSignature.ALGO_ID_SIGNATURE_DSA;
163 throw new InvalidCryptoException(SAMLException.RESPONDER,
164 "The Shibboleth IdP currently only supports signing with RSA and DSA keys.");
168 response.sign(responseAlgorithm, relyingParty.getIdentityProvider().getSigningCredential().getPrivateKey(),
169 Arrays.asList(relyingParty.getIdentityProvider().getSigningCredential().getX509CertificateChain()));
175 protected void addMetadataProvider(Element element) {
177 log.debug("Found Metadata Provider configuration element.");
178 if (!element.getTagName().equals("MetadataProvider")) {
179 log.error("Error while attemtping to load Metadata Provider. Malformed provider specificaion.");
184 metadata.add(MetadataProviderFactory.loadProvider(element));
185 } catch (MetadataException e) {
186 log.error("Unable to load Metadata Provider. Skipping...");
190 public int providerCount() {
192 return metadata.size();
195 public EntityDescriptor lookup(String providerId) {
197 Iterator iterator = metadata.iterator();
198 while (iterator.hasNext()) {
199 EntityDescriptor provider = ((Metadata) iterator.next()).lookup(providerId);
200 if (provider != null) { return provider; }
205 public EntityDescriptor lookup(Artifact artifact) {
207 Iterator iterator = metadata.iterator();
208 while (iterator.hasNext()) {
209 EntityDescriptor provider = ((Metadata) iterator.next()).lookup(artifact);
210 if (provider != null) { return provider; }
215 public SAMLAttribute[] getReleaseAttributes(Principal principal, String requester, URL resource) throws AAException {
218 URI[] potentialAttributes = arpEngine.listPossibleReleaseAttributes(principal, requester, resource);
219 return getReleaseAttributes(principal, requester, resource, potentialAttributes);
221 } catch (ArpProcessingException e) {
222 log.error("An error occurred while processing the ARPs for principal (" + principal.getName() + ") :"
224 throw new AAException("Error retrieving data for principal.");
228 public SAMLAttribute[] getReleaseAttributes(Principal principal, String requester, URL resource,
229 URI[] attributeNames) throws AAException {
232 AAAttributeSet attributeSet = new AAAttributeSet();
233 for (int i = 0; i < attributeNames.length; i++) {
234 AAAttribute attribute = new AAAttribute(attributeNames[i].toString());
235 attributeSet.add(attribute);
238 return resolveAttributes(principal, requester, resource, attributeSet);
240 } catch (SAMLException e) {
241 log.error("An error occurred while creating attributes for principal (" + principal.getName() + ") :"
243 throw new AAException("Error retrieving data for principal.");
245 } catch (ArpProcessingException e) {
246 log.error("An error occurred while processing the ARPs for principal (" + principal.getName() + ") :"
248 throw new AAException("Error retrieving data for principal.");
252 private SAMLAttribute[] resolveAttributes(Principal principal, String requester, URL resource,
253 AAAttributeSet attributeSet) throws ArpProcessingException {
255 resolver.resolveAttributes(principal, requester, attributeSet);
256 arpEngine.filterAttributes(attributeSet, principal, requester, resource);
257 return attributeSet.getAttributes();
261 * Cleanup resources that won't be released when this object is garbage-collected
263 public void destroy() {
269 public ArtifactMapper getArtifactMapper() {
271 return artifactMapper;
274 public Trust getTrust() {
279 private class Semaphore {
283 public Semaphore(int value) {
288 public synchronized void enter() {
294 } catch (InterruptedException e) {
295 // squelch and continue
300 public synchronized void exit() {