Merge pull request #93 from vesse/saml2p-logout

SessionIndex / WSO2 logout

Author: ploer

lib/passport-saml/saml.js

@@ -184,6 +184,13 @@ SAML.prototype.generateLogoutRequest = function (req) {
     }
   };
 
+  if (req.user.sessionIndex) {
+    request['samlp:LogoutRequest']['saml2p:SessionIndex'] = {
+      '@xmlns:saml2p': 'urn:oasis:names:tc:SAML:2.0:protocol',
+      '#text': req.user.sessionIndex
+    };
+  }
+
   return xmlbuilder.create(request).end();
 };
 
@@ -534,6 +541,13 @@ SAML.prototype.processValidlySignedAssertion = function(xml, inResponseTo, callb
       profile.issuer = issuer[0];
     }
 
+    var authnStatement = assertion.AuthnStatement;
+    if (authnStatement) {
+      if (authnStatement[0].$ && authnStatement[0].$.SessionIndex) {
+        profile.sessionIndex = authnStatement[0].$.SessionIndex;
+      }
+    }
+
     var subject = assertion.Subject;
     if (subject) {
       var nameID = subject[0].NameID;