This article addresses the following authorization requirements.
1. The operation getEmployees
in the service "http://localhost:8280/services/Customers" should only be accessed by users belonging to both the admin_emps
and admin
groups.
2. If the user belongs to a group other than admin_emps
or admin
, the request should fail.
3. Requests to any other service or operation should fail.
<?xml version="1.0" encoding="UTF-8"?> <Policy PolicyId="urn:sample:xacml:2.0:samplepolicy" RuleCombiningAlgId="urn:oasis:names:tc:xacml:1.0:rule-combining-algorithm:first-applicable" xmlns="urn:oasis:names:tc:xacml:2.0:policy:schema:os"> <Description>Sample XACML Authorization Policy</Description> <Target> <Subjects> <AnySubject/> </Subjects> <Actions> <AnyAction/> </Actions> <Resources> <AnyResource/> </Resources> </Target> <Rule Effect="Permit" RuleId="primary-group-emps-rule"> <Target> <Subjects> <AnySubject/> </Subjects> <Resources> <Resource> <ResourceMatch MatchId="urn:oasis:names:tc:xacml:1.0:function:string-regexp-match"> <AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">http://localhost:8280/services/Customers/getEmployees</AttributeValue> <ResourceAttributeDesignator AttributeId="urn:oasis:names:tc:xacml:1.0:resource:resource-id" DataType="http://www.w3.org/2001/XMLSchema#string"/> </ResourceMatch> </Resource> </Resources> <Actions> <Action> <ActionMatch MatchId="urn:oasis:names:tc:xacml:1.0:function:string-equal"> <AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">read</AttributeValue> <ActionAttributeDesignator AttributeId="urn:oasis:names:tc:xacml:1.0:action:action-id" DataType="http://www.w3.org/2001/XMLSchema#string"/> </ActionMatch> </Action> </Actions> </Target> <Condition> <Apply FunctionId="urn:oasis:names:tc:xacml:1.0:function:string-set-equals"> <SubjectAttributeDesignator AttributeId="group" DataType="http://www.w3.org/2001/XMLSchema#string"/> <Apply FunctionId="urn:oasis:names:tc:xacml:1.0:function:string-bag"> <AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">admin_emps</AttributeValue> <AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">admin</AttributeValue> </Apply> </Apply> </Condition> </Rule> <Rule Effect="Deny" RuleId="deny-rule"/> </Policy>