This article addresses the following authorization requirements.
1. The operations getVesrion1 and getVersion2 in the service "http://localhost:8280/services/Customers" should be accessed by any user.
2. Requests to any other service or operation should only be accessed by users belonging to the group(s) admin_emps and/or admin.
<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-resource-rule">
<Target>
<Subjects>
<AnySubject/>
</Subjects>
<Resources>
<ResourceMatch MatchId="urn:oasis:names:tc:xacml:1.0:function:string-at-least-one-member-of">
<ResourceAttributeDesignator
AttributeId="urn:oasis:names:tc:xacml:1.0:resource:resource-id" 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">http://localhost:8280/services/Customers/getVersion1</AttributeValue>
<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">http://localhost:8280/services/Customers/getVersion2</AttributeValue>
</Apply>
</ResourceMatch>
</Resources>
<Actions>
<AnyAction/>
</Actions>
</Target>
<Condition>
<Apply FunctionId="urn:oasis:names:tc:xacml:1.0:function:string-at-least-one-member-of">
<ResourceAttributeDesignator
AttributeId="urn:oasis:names:tc:xacml:1.0:resource:resource-id" 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">http://localhost:8280/services/Customers/getVersion1</AttributeValue>
<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">http://localhost:8280/services/Customers/getVersion2</AttributeValue>
</Apply>
</Apply>
</Condition>
</Rule>
<Rule Effect="Permit" RuleId="primary-group-emps-rule">
<Target>
<Subjects>
<AnySubject/>
</Subjects>
<Resources>
<AnyResource/>
</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-at-least-one-member-of">
<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>