我在我的 java 应用程序中使用 XACML 3.0 和 Balana。我的 XML 模式定义如下:
<record>
<proposal>
<proposalid></proposalid>
<proposaltitle></proposaltitle>
<pi>
<fullname></fullname>
<workemail></workemail>
<userid></userid>
</pi>
<copis>
<copi>
<fullname></fullname>
<workemail></workemail>
<userid></userid>
</copi>
<copi>
<fullname></fullname>
<workemail></workemail>
<userid></userid>
</copi>
<copi>
<firstname></firstname>
<lastname></lastname>
<workemail></workemail>
<userid></userid>
</copi>
</copis>
</proposal>
</record>
我的应用程序向 PEP 发送 XACML 请求,如下所示:
<Attributes Category="urn:oasis:names:tc:xacml:1.0:subject-category:access-subject">
<Attribute AttributeId="urn:oasis:names:tc:xacml:1.0:subject:proposal.role" IncludeInResult="false">
<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">PI</AttributeValue>
</Attribute>
</Attributes>
<Attributes Category="urn:oasis:names:tc:xacml:3.0:attribute-category:resource">
<Content>
<ak:record xmlns:ak="http://akpower.org">
<ak:proposal>
<ak:proposalid>5702a60865dbb30b09a492cf</ak:proposalid>
<ak:proposaltitle>Proposal 11</ak:proposaltitle>
<ak:authorprofile>
<ak:fullname>Milson Munakami</ak:fullname>
</ak:authorprofile>
<ak:pi>
<ak:fullname>Milson Munakami</ak:fullname>
<ak:workemail>milsonmun@yahoo.com</ak:workemail>
<ak:userid>56fee3e965dbb35ce5c900fa</ak:userid>
</ak:pi>
<ak:copis>
<ak:copi>
<ak:fullname>PS Wang</ak:fullname>
<ak:workemail>fdsafda@yahoo.comss</ak:workemail>
<ak:userid>56fee3e965dbb35ce5c900fx</ak:userid>
</ak:copi>
<ak:copi>
<ak:fullname>Thomas Voltz</ak:fullname>
<ak:workemail>fdsafda@yahoo.comsss</ak:workemail>
<ak:userid>56fee3e965dbb35ce5c900fx</ak:userid>
</ak:copi>
</ak:copis>
</ak:proposal>
</ak:record>
</Content>
<Attribute AttributeId="urn:oasis:names:tc:xacml:3.0:content-selector" IncludeInResult="false">
<AttributeValue XPathCategory="urn:oasis:names:tc:xacml:3.0:attribute-category:resource" DataType="urn:oasis:names:tc:xacml:3.0:data-type:xpathExpression">//ak:record/ak:proposal</AttributeValue>
</Attribute>
<Attribute AttributeId="urn:oasis:names:tc:xacml:1.0:resource:DeletedByPI" IncludeInResult="false">
<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">NOTDELETED</AttributeValue>
</Attribute>
<Attribute AttributeId="urn:oasis:names:tc:xacml:1.0:resource:proposal.section" IncludeInResult="false">
<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">Whole Proposal</AttributeValue>
</Attribute>
<Attribute AttributeId="urn:oasis:names:tc:xacml:1.0:resource:SubmittedByPI" IncludeInResult="false">
<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">NOTSUBMITTED</AttributeValue>
</Attribute>
</Attributes>
<Attributes Category="urn:oasis:names:tc:xacml:3.0:attribute-category:action">
<Attribute AttributeId="urn:oasis:names:tc:xacml:1.0:action:proposal.action" IncludeInResult="false">
<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">Save</AttributeValue>
</Attribute>
</Attributes>
</Request>
在我的政策规则中,我有:
<ObligationExpressions>
<ObligationExpression ObligationId="sendEmail" FulfillOn="Permit">
<AttributeAssignmentExpression AttributeId="urn:oasis:names:tc:xacml:3.0:example:attribute:text">
<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">Your proposal has been updated. As soon as possible please review your proposal for any unwanted changes</AttributeValue>
</AttributeAssignmentExpression>
<AttributeAssignmentExpression AttributeId="piEmail">
<Apply FunctionId="urn:oasis:names:tc:xacml:1.0:function:string-one-and-only">
<AttributeSelector MustBePresent="false"
ContextSelectorId="urn:oasis:names:tc:xacml:3.0:content-selector"
Category="urn:oasis:names:tc:xacml:3.0:attribute-category:resource"
Path="//ak:pi/ak:workemail/text()" DataType="http://www.w3.org/2001/XMLSchema#string" />
</Apply>
</AttributeAssignmentExpression>
<AttributeAssignmentExpression AttributeId="piFullName">
<Apply FunctionId="urn:oasis:names:tc:xacml:1.0:function:string-one-and-only">
<AttributeSelector MustBePresent="false"
ContextSelectorId="urn:oasis:names:tc:xacml:3.0:content-selector"
Category="urn:oasis:names:tc:xacml:3.0:attribute-category:resource"
Path="//ak:pi/ak:fullname/text()" DataType="http://www.w3.org/2001/XMLSchema#string" />
</Apply>
</AttributeAssignmentExpression>
<AttributeAssignmentExpression AttributeId="coPisEmail">
<Apply FunctionId="urn:oasis:names:tc:xacml:1.0:function:string-one-and-only">
<AttributeSelector MustBePresent="false"
ContextSelectorId="urn:oasis:names:tc:xacml:3.0:content-selector"
Category="urn:oasis:names:tc:xacml:3.0:attribute-category:resource"
Path="//ak:copis/ak:copi/ak:workemail/text()" DataType="http://www.w3.org/2001/XMLSchema#string" />
</Apply>
</AttributeAssignmentExpression>
<AttributeAssignmentExpression AttributeId="coPisFullName">
<Apply FunctionId="urn:oasis:names:tc:xacml:1.0:function:string-one-and-only">
<AttributeSelector MustBePresent="false"
ContextSelectorId="urn:oasis:names:tc:xacml:3.0:content-selector"
Category="urn:oasis:names:tc:xacml:3.0:attribute-category:resource"
Path="//ak:copis/ak:copi/ak:fullname/text()" DataType="http://www.w3.org/2001/XMLSchema#string" />
</Apply>
</AttributeAssignmentExpression>
</ObligationExpression>
</ObligationExpressions>
我的回复如下:
<Response xmlns="urn:oasis:names:tc:xacml:3.0:core:schema:wd-17">
<Result>
<Decision>Permit</Decision>
<Status>
<StatusCode Value="urn:oasis:names:tc:xacml:1.0:status:ok"/>
</Status>
<Obligations>
<Obligation ObligationId="sendEmail">
<AttributeAssignment AttributeId="urn:oasis:names:tc:xacml:3.0:example:attribute:text" DataType="http://www.w3.org/2001/XMLSchema#string">
Your proposal has been updated. As soon as possible please review your proposal for any unwanted changes
</AttributeAssignment>
<AttributeAssignment AttributeId="piEmail" DataType="http://www.w3.org/2001/XMLSchema#string">
milsonmun@yahoo.com
</AttributeAssignment>
<AttributeAssignment AttributeId="piFullName" DataType="http://www.w3.org/2001/XMLSchema#string">
Milson Munakami
</AttributeAssignment>
</Obligation>
</Obligations>
</Result>
</Response>
这不包含 coPisEmail 和 coPisFullName 的任何义务值。另外我不确定如何获取这些动态属性的值?我如何在我的应用程序中使用这些值?例如,它会只返回一个包含所有电子邮件和全名的值,还是会在单独的响应中返回单个值?我想我在这里遗漏了一些功能:
<Apply FunctionId="urn:oasis:names:tc:xacml:1.0:**function:string-one-and-only**">
<AttributeSelector MustBePresent="false"
ContextSelectorId="urn:oasis:names:tc:xacml:3.0**:content-selector**"
Category="urn:oasis:names:tc:xacml:3.0:attribute-category:resource"
Path="//ak:pi/ak:workemail/text()" DataType="http://www.w3.org/2001/XMLSchema#string" />
</Apply>