/// <summary>
/// Creates a new runtime policy evaluation.
/// </summary>
/// <param name="policy">The policy document.</param>
public Policy( pol.PolicyElement policy )
{
if (policy == null) throw new ArgumentNullException("policy");
_policy = policy;
// Chechs the target for this policy.
if( policy.Target != null )
{
_target = new Target( (pol.TargetElement)policy.Target );
// Load all the resources for this policy.
foreach( pol.ResourceElement resource in policy.Target.Resources.ItemsList )
{
foreach( pol.ResourceMatchElement rmatch in resource.Match )
{
if( !_allResources.Contains( rmatch.AttributeValue.Contents ) )
{
_allResources.Add( rmatch.AttributeValue.Contents );
}
}
}
}
// Load all the Rules and creates a new runtime rule.
foreach( pol.RuleElement rule in policy.Rules )
{
Rule ruleEv = new Rule( rule );
_rules.Add( ruleEv );
foreach( string rName in ruleEv.AllResources )
{
if( !_allResources.Contains( rName ) )
{
_allResources.Add( rName );
}
}
}
}
/// <summary>
/// Creates a new instance of the Rule using the rule defined in the policy document.
/// </summary>
/// <param name="rule">The rule defined in the policy document.</param>
public Rule( pol.RuleElement rule )
{
if (rule == null) throw new ArgumentNullException("rule");
_rule = rule;
if( _rule.SchemaVersion == XacmlVersion.Version10 || _rule.SchemaVersion == XacmlVersion.Version11 )
{
_condition = new Condition( (pol.ConditionElement)_rule.Condition );
}
else if( _rule.SchemaVersion == XacmlVersion.Version20 )
{
_condition = new Condition2( (pol.ConditionElement)_rule.Condition );
}
if( rule.Target != null )
{
_target = new Target( (pol.TargetElement)rule.Target );
// Load all the resources for the elements within this rule.
foreach( pol.ResourceElement resource in rule.Target.Resources.ItemsList )
{
foreach( pol.ResourceMatchElement rmatch in resource.Match )
{
if( !_allResources.Contains( rmatch.AttributeValue.Contents ) )
{
_allResources.Add( rmatch.AttributeValue.Contents );
}
}
}
}
}
/// <summary>
/// Creates a new runtime policy set evaluation.
/// </summary>
/// <param name="engine">The evaluation engine.</param>
/// <param name="policySet">The policy set defined in the policy document.</param>
public PolicySet( EvaluationEngine engine, pol.PolicySetElement policySet )
{
if (engine == null) throw new ArgumentNullException("engine");
if (policySet == null) throw new ArgumentNullException("policySet");
_policySet = policySet;
// Create a runtime target of this policy set.
if( policySet.Target != null )
{
_target = new Target( (pol.TargetElement)policySet.Target );
foreach( pol.ResourceElement resource in policySet.Target.Resources.ItemsList )
{
foreach( pol.ResourceMatchElement rmatch in resource.Match )
{
if( !_allResources.Contains( rmatch.AttributeValue.Contents ) )
{
_allResources.Add( rmatch.AttributeValue.Contents );
}
}
}
}
// Add all the policies (or policy set) inside this policy set.
foreach( object child in policySet.Policies )
{
pol.PolicySetElement childPolicySet = child as pol.PolicySetElement;
pol.PolicyElement childPolicyElement = child as pol.PolicyElement;
pol.PolicySetIdReferenceElement childPolicySetIdReference = child as pol.PolicySetIdReferenceElement;
pol.PolicyIdReferenceElement childPolicyIdReferenceElement = child as pol.PolicyIdReferenceElement;
if (childPolicySet != null)
{
PolicySet policySetEv = new PolicySet(engine, childPolicySet);
foreach( string rName in policySetEv.AllResources )
{
if( !_allResources.Contains( rName ) )
{
_allResources.Add( rName );
}
}
_policies.Add( policySetEv );
}
else if (childPolicyElement!=null)
{
Policy policyEv = new Policy(childPolicyElement);
foreach( string rName in policyEv.AllResources )
{
if( !_allResources.Contains( rName ) )
{
_allResources.Add( rName );
}
}
_policies.Add( policyEv );
}
else if (childPolicySetIdReference!=null)
{
pol.PolicySetElement policySetDefinition = EvaluationEngine.Resolve(childPolicySetIdReference);
if( policySetDefinition != null )
{
PolicySet policySetEv = new PolicySet( engine, policySetDefinition );
foreach( string rName in policySetEv.AllResources )
{
if( !_allResources.Contains( rName ) )
{
_allResources.Add( rName );
}
}
_policies.Add( policySetEv );
}
else
{
throw new EvaluationException( Resource.ResourceManager[ Resource.MessageKey.exc_policyset_reference_not_resolved, ((pol.PolicySetIdReferenceElement)child).PolicySetId ] );
}
}
else if (childPolicyIdReferenceElement!=null)
{
pol.PolicyElement policyDefinition = EvaluationEngine.Resolve(childPolicyIdReferenceElement);
if( policyDefinition != null )
{
Policy policyEv = new Policy( policyDefinition );
foreach( string rName in policyEv.AllResources )
{
if( !_allResources.Contains( rName ) )
{
_allResources.Add( rName );
}
}
_policies.Add( policyEv );
}
else
{
throw new EvaluationException( Resource.ResourceManager[ Resource.MessageKey.exc_policy_reference_not_resolved, ((pol.PolicyIdReferenceElement)child).PolicyId ] );
}
}
}
}
