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<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<!--
============LICENSE_START=======================================================
drools-applications
================================================================================
Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
================================================================================
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
============LICENSE_END=========================================================
-->
<Policy xmlns="urn:oasis:names:tc:xacml:3.0:core:schema:wd-17"
PolicyId="urn:com:att:xacml:policy:id:25e12b06-11d5-4895-b2a2-6f6c594de069"
Version="1"
RuleCombiningAlgId="urn:oasis:names:tc:xacml:3.0:rule-combining-algorithm:permit-unless-deny">
<Description>Policy for frequency limiter.</Description>
<Target>
<AnyOf>
<AllOf>
<Match
MatchId="urn:oasis:names:tc:xacml:1.0:function:string-regexp-match">
<!-- <AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">.*</AttributeValue>-->
<AttributeValue
DataType="http://www.w3.org/2001/XMLSchema#string">${clname}</AttributeValue>
<AttributeDesignator
Category="urn:oasis:names:tc:xacml:1.0:subject-category:access-subject"
AttributeId="urn:oasis:names:tc:xacml:1.0:clname:clname-id"
DataType="http://www.w3.org/2001/XMLSchema#string"
MustBePresent="false" />
</Match>
<!-- <Match MatchId="urn:oasis:names:tc:xacml:1.0:function:string-equal">-->
<Match
MatchId="urn:oasis:names:tc:xacml:1.0:function:string-regexp-match">
<AttributeValue
DataType="http://www.w3.org/2001/XMLSchema#string">${actor}</AttributeValue>
<AttributeDesignator
Category="urn:oasis:names:tc:xacml:1.0:subject-category:access-subject"
AttributeId="urn:oasis:names:tc:xacml:1.0:actor:actor-id"
DataType="http://www.w3.org/2001/XMLSchema#string"
MustBePresent="false" />
</Match>
<Match
MatchId="urn:oasis:names:tc:xacml:1.0:function:string-regexp-match">
<AttributeValue
DataType="http://www.w3.org/2001/XMLSchema#string">${recipe}</AttributeValue>
<AttributeDesignator
Category="urn:oasis:names:tc:xacml:3.0:attribute-category:action"
AttributeId="urn:oasis:names:tc:xacml:1.0:operation:operation-id"
DataType="http://www.w3.org/2001/XMLSchema#string"
MustBePresent="false" />
</Match>
<Match
MatchId="urn:oasis:names:tc:xacml:1.0:function:string-regexp-match">
<AttributeValue
DataType="http://www.w3.org/2001/XMLSchema#string">${targets}</AttributeValue>
<AttributeDesignator
Category="urn:oasis:names:tc:xacml:3.0:attribute-category:resource"
AttributeId="urn:oasis:names:tc:xacml:1.0:target:target-id"
DataType="http://www.w3.org/2001/XMLSchema#string"
MustBePresent="false" />
</Match>
</AllOf>
</AnyOf>
</Target>
<Rule
RuleId="urn:com:att:xacml:rule:id:e1e8c5c0-e2ba-47d5-9289-6c015305ed21"
Effect="Deny">
<Description>DENY - only if number of operations performed in
the past is larger than the limit and the Guard is active.</Description>
<Condition>
<Apply
FunctionId="urn:oasis:names:tc:xacml:1.0:function:and">
<VariableReference
VariableId="isGuardActive" />
<VariableReference
VariableId="isHistoryGreaterThanLimit" />
</Apply>
</Condition>
</Rule>
<VariableDefinition VariableId="isGuardActive">
<Apply
FunctionId="urn:oasis:names:tc:xacml:2.0:function:time-in-range">
<Apply
FunctionId="urn:oasis:names:tc:xacml:1.0:function:time-one-and-only">
<AttributeDesignator
AttributeId="urn:oasis:names:tc:xacml:1.0:environment:current-time"
DataType="http://www.w3.org/2001/XMLSchema#time"
Category="urn:oasis:names:tc:xacml:3.0:attribute-category:environment"
MustBePresent="false" />
</Apply>
<AttributeValue
DataType="http://www.w3.org/2001/XMLSchema#time">${guardActiveStart}</AttributeValue>
<AttributeValue
DataType="http://www.w3.org/2001/XMLSchema#time">${guardActiveEnd}</AttributeValue>
</Apply>
</VariableDefinition>
<VariableDefinition
VariableId="isHistoryGreaterThanLimit">
<Apply
FunctionId="urn:oasis:names:tc:xacml:1.0:function:integer-greater-than-or-equal">
<Apply
FunctionId="urn:oasis:names:tc:xacml:1.0:function:integer-one-and-only">
<AttributeDesignator
Category="urn:oasis:names:tc:xacml:3.0:attribute-category:resource"
AttributeId="com:att:research:xacml:test:sql:resource:operations:count"
DataType="http://www.w3.org/2001/XMLSchema#integer"
Issuer="com:att:research:xacml:guard:historydb:tw:${twValue}:${twUnits}"
MustBePresent="false" />
</Apply>
<AttributeValue
DataType="http://www.w3.org/2001/XMLSchema#integer">${limit}</AttributeValue>
</Apply>
</VariableDefinition>
</Policy>
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