src/edu/internet2/middleware/shibboleth/idp/profile/saml2/SSOProfileHandler.java

   1 /*
   2  * Copyright [2007] [University Corporation for Advanced Internet Development, Inc.]
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package edu.internet2.middleware.shibboleth.idp.profile.saml2;
  18
  19 import java.io.IOException;
  20 import java.util.ArrayList;
  21
  22 import javax.servlet.RequestDispatcher;
  23 import javax.servlet.ServletException;
  24 import javax.servlet.http.HttpServletRequest;
  25 import javax.servlet.http.HttpSession;
  26
  27 import org.opensaml.common.SAMLObjectBuilder;
  28 import org.opensaml.common.binding.decoding.SAMLMessageDecoder;
  29 import org.opensaml.common.xml.SAMLConstants;
  30 import org.opensaml.saml2.binding.AuthnResponseEndpointSelector;
  31 import org.opensaml.saml2.core.AttributeStatement;
  32 import org.opensaml.saml2.core.AuthnContext;
  33 import org.opensaml.saml2.core.AuthnContextClassRef;
  34 import org.opensaml.saml2.core.AuthnContextDeclRef;
  35 import org.opensaml.saml2.core.AuthnRequest;
  36 import org.opensaml.saml2.core.AuthnStatement;
  37 import org.opensaml.saml2.core.RequestedAuthnContext;
  38 import org.opensaml.saml2.core.Response;
  39 import org.opensaml.saml2.core.Statement;
  40 import org.opensaml.saml2.core.StatusCode;
  41 import org.opensaml.saml2.core.SubjectLocality;
  42 import org.opensaml.saml2.metadata.AssertionConsumerService;
  43 import org.opensaml.saml2.metadata.Endpoint;
  44 import org.opensaml.saml2.metadata.EntityDescriptor;
  45 import org.opensaml.saml2.metadata.IDPSSODescriptor;
  46 import org.opensaml.saml2.metadata.SPSSODescriptor;
  47 import org.opensaml.saml2.metadata.provider.MetadataProvider;
  48 import org.opensaml.saml2.metadata.provider.MetadataProviderException;
  49 import org.opensaml.ws.message.decoder.MessageDecodingException;
  50 import org.opensaml.ws.transport.http.HTTPInTransport;
  51 import org.opensaml.ws.transport.http.HTTPOutTransport;
  52 import org.opensaml.ws.transport.http.HttpServletRequestAdapter;
  53 import org.opensaml.ws.transport.http.HttpServletResponseAdapter;
  54 import org.opensaml.xml.io.MarshallingException;
  55 import org.opensaml.xml.io.UnmarshallingException;
  56 import org.opensaml.xml.security.SecurityException;
  57 import org.slf4j.Logger;
  58 import org.slf4j.LoggerFactory;
  59
  60 import edu.internet2.middleware.shibboleth.common.profile.ProfileException;
  61 import edu.internet2.middleware.shibboleth.common.relyingparty.ProfileConfiguration;
  62 import edu.internet2.middleware.shibboleth.common.relyingparty.RelyingPartyConfiguration;
  63 import edu.internet2.middleware.shibboleth.common.relyingparty.provider.saml2.SSOConfiguration;
  64 import edu.internet2.middleware.shibboleth.common.util.HttpHelper;
  65 import edu.internet2.middleware.shibboleth.idp.authn.LoginContext;
  66 import edu.internet2.middleware.shibboleth.idp.authn.Saml2LoginContext;
  67
  68 /** SAML 2.0 SSO request profile handler. */
  69 public class SSOProfileHandler extends AbstractSAML2ProfileHandler {
  70
  71     /** Class logger. */
  72     private final Logger log = LoggerFactory.getLogger(SSOProfileHandler.class);
  73
  74     /** Builder of AuthnStatement objects. */
  75     private SAMLObjectBuilder<AuthnStatement> authnStatementBuilder;
  76
  77     /** Builder of AuthnContext objects. */
  78     private SAMLObjectBuilder<AuthnContext> authnContextBuilder;
  79
  80     /** Builder of AuthnContextClassRef objects. */
  81     private SAMLObjectBuilder<AuthnContextClassRef> authnContextClassRefBuilder;
  82
  83     /** Builder of AuthnContextDeclRef objects. */
  84     private SAMLObjectBuilder<AuthnContextDeclRef> authnContextDeclRefBuilder;
  85
  86     /** Builder of SubjectLocality objects. */
  87     private SAMLObjectBuilder<SubjectLocality> subjectLocalityBuilder;
  88
  89     /** URL of the authentication manager servlet. */
  90     private String authenticationManagerPath;
  91
  92     /** URI of request decoder. */
  93     private String decodingBinding;
  94
  95     /**
  96      * Constructor.
  97      *
  98      * @param authnManagerPath path to the authentication manager servlet
  99      */
 100     @SuppressWarnings("unchecked")
 101     public SSOProfileHandler(String authnManagerPath) {
 102         super();
 103
 104         authenticationManagerPath = authnManagerPath;
 105
 106         authnStatementBuilder = (SAMLObjectBuilder<AuthnStatement>) getBuilderFactory().getBuilder(
 107                 AuthnStatement.DEFAULT_ELEMENT_NAME);
 108         authnContextBuilder = (SAMLObjectBuilder<AuthnContext>) getBuilderFactory().getBuilder(
 109                 AuthnContext.DEFAULT_ELEMENT_NAME);
 110         authnContextClassRefBuilder = (SAMLObjectBuilder<AuthnContextClassRef>) getBuilderFactory().getBuilder(
 111                 AuthnContextClassRef.DEFAULT_ELEMENT_NAME);
 112         authnContextDeclRefBuilder = (SAMLObjectBuilder<AuthnContextDeclRef>) getBuilderFactory().getBuilder(
 113                 AuthnContextDeclRef.DEFAULT_ELEMENT_NAME);
 114         subjectLocalityBuilder = (SAMLObjectBuilder<SubjectLocality>) getBuilderFactory().getBuilder(
 115                 SubjectLocality.DEFAULT_ELEMENT_NAME);
 116     }
 117
 118     /** {@inheritDoc} */
 119     public String getProfileId() {
 120         return "urn:mace:shibboleth:2.0:idp:profiles:saml2:request:sso";
 121     }
 122
 123     /** {@inheritDoc} */
 124     public void processRequest(HTTPInTransport inTransport, HTTPOutTransport outTransport) throws ProfileException {
 125         HttpServletRequest servletRequest = ((HttpServletRequestAdapter) inTransport).getWrappedRequest();
 126         HttpSession httpSession = servletRequest.getSession(true);
 127         LoginContext loginContext = (LoginContext) httpSession.getAttribute(LoginContext.LOGIN_CONTEXT_KEY);
 128
 129         if (loginContext == null) {
 130             log.debug("User session does not contain a login context, processing as first leg of request");
 131             performAuthentication(inTransport, outTransport);
 132         }else if (!loginContext.isPrincipalAuthenticated()){
 133             log.debug("User session contained a login context but user was not authenticated, processing as first leg of request");
 134             performAuthentication(inTransport, outTransport);
 135         } else {
 136             log.debug("User session contains a login context, processing as second leg of request");
 137             completeAuthenticationRequest(inTransport, outTransport);
 138         }
 139     }
 140
 141     /**
 142      * Creates a {@link Saml2LoginContext} an sends the request off to the AuthenticationManager to begin the process of
 143      * authenticating the user.
 144      *
 145      * @param inTransport inbound request transport
 146      * @param outTransport outbound response transport
 147      *
 148      * @throws ProfileException thrown if there is a problem creating the login context and transferring control to the
 149      *             authentication manager
 150      */
 151     protected void performAuthentication(HTTPInTransport inTransport, HTTPOutTransport outTransport)
 152             throws ProfileException {
 153         HttpServletRequest servletRequest = ((HttpServletRequestAdapter) inTransport).getWrappedRequest();
 154         HttpSession httpSession = servletRequest.getSession();
 155
 156         try {
 157             SSORequestContext requestContext = decodeRequest(inTransport, outTransport);
 158
 159             String relyingPartyId = requestContext.getInboundMessageIssuer();
 160             RelyingPartyConfiguration rpConfig = getRelyingPartyConfiguration(relyingPartyId);
 161             ProfileConfiguration ssoConfig = rpConfig.getProfileConfiguration(SSOConfiguration.PROFILE_ID);
 162             if (ssoConfig == null) {
 163                 log.error("SAML 2 SSO profile is not configured for relying party "
 164                         + requestContext.getInboundMessageIssuer());
 165                 throw new ProfileException("SAML 2 SSO profile is not configured for relying party "
 166                         + requestContext.getInboundMessageIssuer());
 167             }
 168
 169             log.debug("Creating login context and transferring control to authentication engine");
 170             Saml2LoginContext loginContext = new Saml2LoginContext(relyingPartyId, requestContext.getRelayState(),
 171                     requestContext.getInboundSAMLMessage());
 172             loginContext.setAuthenticationEngineURL(authenticationManagerPath);
 173             loginContext.setProfileHandlerURL(HttpHelper.getRequestUriWithoutContext(servletRequest));
 174             if (loginContext.getRequestedAuthenticationMethods().size() == 0) {
 175                 loginContext.getRequestedAuthenticationMethods().add(rpConfig.getDefaultAuthenticationMethod());
 176             }
 177
 178             httpSession.setAttribute(Saml2LoginContext.LOGIN_CONTEXT_KEY, loginContext);
 179             RequestDispatcher dispatcher = servletRequest.getRequestDispatcher(authenticationManagerPath);
 180             dispatcher.forward(servletRequest, ((HttpServletResponseAdapter) outTransport).getWrappedResponse());
 181         } catch (MarshallingException e) {
 182             httpSession.removeAttribute(LoginContext.LOGIN_CONTEXT_KEY);
 183             log.error("Unable to marshall authentication request context");
 184             throw new ProfileException("Unable to marshall authentication request context", e);
 185         } catch (IOException ex) {
 186             httpSession.removeAttribute(LoginContext.LOGIN_CONTEXT_KEY);
 187             log.error("Error forwarding SAML 2 AuthnRequest to AuthenticationManager", ex);
 188             throw new ProfileException("Error forwarding SAML 2 AuthnRequest to AuthenticationManager", ex);
 189         } catch (ServletException ex) {
 190             httpSession.removeAttribute(LoginContext.LOGIN_CONTEXT_KEY);
 191             log.error("Error forwarding SAML 2 AuthnRequest to AuthenticationManager", ex);
 192             throw new ProfileException("Error forwarding SAML 2 AuthnRequest to AuthenticationManager", ex);
 193         }
 194     }
 195
 196     /**
 197      * Creates a response to the {@link AuthnRequest} and sends the user, with response in tow, back to the relying
 198      * party after they've been authenticated.
 199      *
 200      * @param inTransport inbound message transport
 201      * @param outTransport outbound message transport
 202      *
 203      * @throws ProfileException thrown if the response can not be created and sent back to the relying party
 204      */
 205     protected void completeAuthenticationRequest(HTTPInTransport inTransport, HTTPOutTransport outTransport)
 206             throws ProfileException {
 207         HttpServletRequest servletRequest = ((HttpServletRequestAdapter) inTransport).getWrappedRequest();
 208         HttpSession httpSession = servletRequest.getSession();
 209
 210         Saml2LoginContext loginContext = (Saml2LoginContext) httpSession.getAttribute(LoginContext.LOGIN_CONTEXT_KEY);
 211         httpSession.removeAttribute(LoginContext.LOGIN_CONTEXT_KEY);
 212
 213         SSORequestContext requestContext = buildRequestContext(loginContext, inTransport, outTransport);
 214
 215         checkSamlVersion(requestContext);
 216
 217         Response samlResponse;
 218         try {
 219             if (loginContext.getPrincipalName() == null) {
 220                 log.error("User's login context did not contain a principal, user considered unauthenticiated.");
 221                 requestContext
 222                         .setFailureStatus(buildStatus(StatusCode.RESPONDER_URI, StatusCode.AUTHN_FAILED_URI, null));
 223                 throw new ProfileException("User failed authentication");
 224             }
 225
 226             resolveAttributes(requestContext);
 227
 228             ArrayList<Statement> statements = new ArrayList<Statement>();
 229             statements.add(buildAuthnStatement(requestContext));
 230             if (requestContext.getProfileConfiguration().includeAttributeStatement()){
 231                 AttributeStatement attributeStatement = buildAttributeStatement(requestContext);
 232                 if(attributeStatement != null){
 233                     requestContext.setRequestedAttributes(requestContext.getPrincipalAttributes().keySet());
 234                     statements.add(attributeStatement);
 235                 }
 236             }
 237
 238             samlResponse = buildResponse(requestContext, "urn:oasis:names:tc:SAML:2.0:cm:bearer", statements);
 239         } catch (ProfileException e) {
 240             samlResponse = buildErrorResponse(requestContext);
 241         }
 242
 243         requestContext.setOutboundSAMLMessage(samlResponse);
 244         requestContext.setOutboundSAMLMessageId(samlResponse.getID());
 245         requestContext.setOutboundSAMLMessageIssueInstant(samlResponse.getIssueInstant());
 246         encodeResponse(requestContext);
 247         writeAuditLogEntry(requestContext);
 248     }
 249
 250     /**
 251      * Decodes an incoming request and stores the information in a created request context.
 252      *
 253      * @param inTransport inbound transport
 254      * @param outTransport outbound transport
 255      *
 256      * @return request context with decoded information
 257      *
 258      * @throws ProfileException thrown if the incomming message failed decoding
 259      */
 260     protected SSORequestContext decodeRequest(HTTPInTransport inTransport, HTTPOutTransport outTransport)
 261             throws ProfileException {
 262         log.debug("Decoding message with decoder binding {}", decodingBinding);
 263
 264         SSORequestContext requestContext = new SSORequestContext();
 265         requestContext.setMetadataProvider(getMetadataProvider());
 266         requestContext.setSecurityPolicyResolver(getSecurityPolicyResolver());
 267
 268         requestContext.setCommunicationProfileId(SSOConfiguration.PROFILE_ID);
 269         requestContext.setInboundMessageTransport(inTransport);
 270         requestContext.setInboundSAMLProtocol(SAMLConstants.SAML20P_NS);
 271         requestContext.setPeerEntityRole(SPSSODescriptor.DEFAULT_ELEMENT_NAME);
 272
 273         requestContext.setOutboundMessageTransport(outTransport);
 274         requestContext.setOutboundSAMLProtocol(SAMLConstants.SAML20P_NS);
 275
 276         try {
 277             SAMLMessageDecoder decoder = getMessageDecoders().get(getInboundBinding());
 278             requestContext.setMessageDecoder(decoder);
 279             decoder.decode(requestContext);
 280             return requestContext;
 281         } catch (MessageDecodingException e) {
 282             log.error("Error decoding authentication request message", e);
 283             throw new ProfileException("Error decoding authentication request message", e);
 284         } catch (SecurityException e) {
 285             log.error("Message did not meet security requirements", e);
 286             throw new ProfileException("Message did not meet security requirements", e);
 287         }
 288     }
 289
 290     /**
 291      * Creates an authentication request context from the current environmental information.
 292      *
 293      * @param loginContext current login context
 294      * @param in inbound transport
 295      * @param out outbount transport
 296      *
 297      * @return created authentication request context
 298      *
 299      * @throws ProfileException thrown if there is a problem creating the context
 300      */
 301     protected SSORequestContext buildRequestContext(Saml2LoginContext loginContext, HTTPInTransport in,
 302             HTTPOutTransport out) throws ProfileException {
 303         SSORequestContext requestContext = new SSORequestContext();
 304
 305         requestContext.setMessageDecoder(getMessageDecoders().get(getInboundBinding()));
 306
 307         requestContext.setLoginContext(loginContext);
 308         requestContext.setPrincipalName(loginContext.getPrincipalName());
 309         requestContext.setPrincipalAuthenticationMethod(loginContext.getAuthenticationMethod());
 310         requestContext.setUserSession(getUserSession(in));
 311         requestContext.setRelayState(loginContext.getRelayState());
 312
 313         requestContext.setInboundMessageTransport(in);
 314         requestContext.setInboundSAMLProtocol(SAMLConstants.SAML20P_NS);
 315
 316         try {
 317             requestContext.setInboundMessage(loginContext.getAuthenticationRequest());
 318             requestContext.setInboundSAMLMessage(loginContext.getAuthenticationRequest());
 319             requestContext.setInboundSAMLMessageId(loginContext.getAuthenticationRequest().getID());
 320         } catch (UnmarshallingException e) {
 321             log.error("Unable to unmarshall authentication request context");
 322             requestContext.setFailureStatus(buildStatus(StatusCode.RESPONDER_URI, null,
 323                     "Error recovering request state"));
 324             throw new ProfileException("Error recovering request state", e);
 325         }
 326
 327         requestContext.setOutboundMessageTransport(out);
 328         requestContext.setOutboundSAMLProtocol(SAMLConstants.SAML20P_NS);
 329
 330         MetadataProvider metadataProvider = getMetadataProvider();
 331         requestContext.setMetadataProvider(metadataProvider);
 332
 333         String relyingPartyId = loginContext.getRelyingPartyId();
 334         requestContext.setInboundMessageIssuer(relyingPartyId);
 335         try {
 336             EntityDescriptor relyingPartyMetadata = metadataProvider.getEntityDescriptor(relyingPartyId);
 337             if (relyingPartyMetadata != null) {
 338                 requestContext.setPeerEntityMetadata(relyingPartyMetadata);
 339                 requestContext.setPeerEntityRole(SPSSODescriptor.DEFAULT_ELEMENT_NAME);
 340                 requestContext.setPeerEntityRoleMetadata(relyingPartyMetadata
 341                         .getSPSSODescriptor(SAMLConstants.SAML20P_NS));
 342             }
 343         } catch (MetadataProviderException e) {
 344             log.error("Unable to locate metadata for relying party");
 345             requestContext.setFailureStatus(buildStatus(StatusCode.RESPONDER_URI, null,
 346                     "Error locating relying party metadata"));
 347             throw new ProfileException("Error locating relying party metadata");
 348         }
 349
 350         RelyingPartyConfiguration rpConfig = getRelyingPartyConfiguration(relyingPartyId);
 351         if (rpConfig == null) {
 352             log.error("Unable to retrieve relying party configuration data for entity with ID {}", relyingPartyId);
 353             throw new ProfileException("Unable to retrieve relying party configuration data for entity with ID "
 354                     + relyingPartyId);
 355         }
 356         requestContext.setRelyingPartyConfiguration(rpConfig);
 357
 358         SSOConfiguration profileConfig = (SSOConfiguration) rpConfig
 359                 .getProfileConfiguration(SSOConfiguration.PROFILE_ID);
 360         requestContext.setProfileConfiguration(profileConfig);
 361         requestContext.setOutboundMessageArtifactType(profileConfig.getOutboundArtifactType());
 362         if (profileConfig.getSigningCredential() != null) {
 363             requestContext.setOutboundSAMLMessageSigningCredential(profileConfig.getSigningCredential());
 364         } else if (rpConfig.getDefaultSigningCredential() != null) {
 365             requestContext.setOutboundSAMLMessageSigningCredential(rpConfig.getDefaultSigningCredential());
 366         }
 367         requestContext.setPeerEntityEndpoint(selectEndpoint(requestContext));
 368
 369         String assertingPartyId = rpConfig.getProviderId();
 370         requestContext.setLocalEntityId(assertingPartyId);
 371
 372         try {
 373             EntityDescriptor localEntityDescriptor = metadataProvider.getEntityDescriptor(assertingPartyId);
 374             if (localEntityDescriptor != null) {
 375                 requestContext.setLocalEntityMetadata(localEntityDescriptor);
 376                 requestContext.setLocalEntityRole(IDPSSODescriptor.DEFAULT_ELEMENT_NAME);
 377                 requestContext.setLocalEntityRoleMetadata(localEntityDescriptor
 378                         .getIDPSSODescriptor(SAMLConstants.SAML20P_NS));
 379             }
 380         } catch (MetadataProviderException e) {
 381             log.error("Unable to locate metadata for asserting party");
 382             requestContext.setFailureStatus(buildStatus(StatusCode.RESPONDER_URI, null,
 383                     "Error locating asserting party metadata"));
 384             throw new ProfileException("Error locating asserting party metadata");
 385         }
 386
 387         return requestContext;
 388     }
 389
 390     /**
 391      * Creates an authentication statement for the current request.
 392      *
 393      * @param requestContext current request context
 394      *
 395      * @return constructed authentication statement
 396      */
 397     protected AuthnStatement buildAuthnStatement(SSORequestContext requestContext) {
 398         Saml2LoginContext loginContext = requestContext.getLoginContext();
 399
 400         AuthnContext authnContext = buildAuthnContext(requestContext);
 401
 402         AuthnStatement statement = authnStatementBuilder.buildObject();
 403         statement.setAuthnContext(authnContext);
 404         statement.setAuthnInstant(loginContext.getAuthenticationInstant());
 405
 406         // TODO
 407         statement.setSessionIndex(null);
 408
 409         if (loginContext.getAuthenticationDuration() > 0) {
 410             statement.setSessionNotOnOrAfter(loginContext.getAuthenticationInstant().plus(
 411                     loginContext.getAuthenticationDuration()));
 412         }
 413
 414         statement.setSubjectLocality(buildSubjectLocality(requestContext));
 415
 416         return statement;
 417     }
 418
 419     /**
 420      * Creates an {@link AuthnContext} for a succesful authentication request.
 421      *
 422      * @param requestContext current request
 423      *
 424      * @return the built authn context
 425      */
 426     protected AuthnContext buildAuthnContext(SSORequestContext requestContext) {
 427         AuthnContext authnContext = authnContextBuilder.buildObject();
 428
 429         Saml2LoginContext loginContext = requestContext.getLoginContext();
 430         AuthnRequest authnRequest = requestContext.getInboundSAMLMessage();
 431         RequestedAuthnContext requestedAuthnContext = authnRequest.getRequestedAuthnContext();
 432         if (requestedAuthnContext != null) {
 433             if (requestedAuthnContext.getAuthnContextClassRefs() != null) {
 434                 for (AuthnContextClassRef classRef : requestedAuthnContext.getAuthnContextClassRefs()) {
 435                     if (classRef.getAuthnContextClassRef().equals(loginContext.getAuthenticationMethod())) {
 436                         AuthnContextClassRef ref = authnContextClassRefBuilder.buildObject();
 437                         ref.setAuthnContextClassRef(loginContext.getAuthenticationMethod());
 438                         authnContext.setAuthnContextClassRef(ref);
 439                     }
 440                 }
 441             } else if (requestedAuthnContext.getAuthnContextDeclRefs() != null) {
 442                 for (AuthnContextDeclRef declRef : requestedAuthnContext.getAuthnContextDeclRefs()) {
 443                     if (declRef.getAuthnContextDeclRef().equals(loginContext.getAuthenticationMethod())) {
 444                         AuthnContextDeclRef ref = authnContextDeclRefBuilder.buildObject();
 445                         ref.setAuthnContextDeclRef(loginContext.getAuthenticationMethod());
 446                         authnContext.setAuthnContextDeclRef(ref);
 447                     }
 448                 }
 449             }
 450         } else {
 451             AuthnContextDeclRef ref = authnContextDeclRefBuilder.buildObject();
 452             ref.setAuthnContextDeclRef(loginContext.getAuthenticationMethod());
 453             authnContext.setAuthnContextDeclRef(ref);
 454         }
 455
 456         return authnContext;
 457     }
 458
 459     /**
 460      * Constructs the subject locality for the authentication statement.
 461      *
 462      * @param requestContext curent request context
 463      *
 464      * @return subject locality for the authentication statement
 465      */
 466     protected SubjectLocality buildSubjectLocality(SSORequestContext requestContext) {
 467         HTTPInTransport transport = (HTTPInTransport) requestContext.getInboundMessageTransport();
 468         SubjectLocality subjectLocality = subjectLocalityBuilder.buildObject();
 469         subjectLocality.setAddress(transport.getPeerAddress());
 470         subjectLocality.setDNSName(transport.getPeerDomainName());
 471
 472         return subjectLocality;
 473     }
 474
 475     /**
 476      * Selects the appropriate endpoint for the relying party and stores it in the request context.
 477      *
 478      * @param requestContext current request context
 479      *
 480      * @return Endpoint selected from the information provided in the request context
 481      */
 482     protected Endpoint selectEndpoint(SSORequestContext requestContext) {
 483         AuthnResponseEndpointSelector endpointSelector = new AuthnResponseEndpointSelector();
 484         endpointSelector.setEndpointType(AssertionConsumerService.DEFAULT_ELEMENT_NAME);
 485         endpointSelector.setMetadataProvider(getMetadataProvider());
 486         endpointSelector.setEntityMetadata(requestContext.getPeerEntityMetadata());
 487         endpointSelector.setEntityRoleMetadata(requestContext.getPeerEntityRoleMetadata());
 488         endpointSelector.setSamlRequest(requestContext.getInboundSAMLMessage());
 489         endpointSelector.getSupportedIssuerBindings().addAll(getSupportedOutboundBindings());
 490         return endpointSelector.selectEndpoint();
 491     }
 492
 493     /** Represents the internal state of a SAML 2.0 SSO Request while it's being processed by the IdP. */
 494     protected class SSORequestContext extends BaseSAML2ProfileRequestContext<AuthnRequest, Response, SSOConfiguration> {
 495
 496         /** Current login context. */
 497         private Saml2LoginContext loginContext;
 498
 499         /**
 500          * Gets the current login context.
 501          *
 502          * @return current login context
 503          */
 504         public Saml2LoginContext getLoginContext() {
 505             return loginContext;
 506         }
 507
 508         /**
 509          * Sets the current login context.
 510          *
 511          * @param context current login context
 512          */
 513         public void setLoginContext(Saml2LoginContext context) {
 514             loginContext = context;
 515         }
 516     }
 517 }