[jira] [Created] (SHIRO-442) CAS client fails with multi-valued SAML attributes

["Art O Cathain (JIRA)" <ji...@apache.org>]

Art O Cathain created SHIRO-442:
-----------------------------------

             Summary: CAS client fails with multi-valued SAML attributes
                 Key: SHIRO-442
                 URL: https://issues.apache.org/jira/browse/SHIRO-442
             Project: Shiro
          Issue Type: Bug
          Components: Authorization (access control) 
    Affects Versions: 1.2.1
            Reporter: Art O Cathain
             Fix For: 1.2.3


When using org.apache.shiro.cas.CasRealm, if the SAML returned by CAS contains multiple attributes of the same name (e.g. roles?), CasRealm blows up in doGetAuthorizationInfo

String value = attributes.get(attributeName);

 with

java.lang.ClassCastException: java.util.ArrayList cannot be cast to java.lang.String

This is because the org.jasig.cas.client.validation.Saml11TicketValidator is populating the attributes in the
principal as follows:

personAttributes.put(samlAttribute.getName(), values.size() == 1 ? values.get(0) : values);

See attached patch for a fix



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