想知道是否有办法加载之前由PIP扩展属性查找器加载的属性值并将其转移($myattr1
)为义务,以便以明文形式获取打印输出消息,主要是有用的用于执行调试任务。
在我的XACML义务之下,我想添加到我的规则中(以抽象符号书写):
<xacml2:Obligations>
<xacml2:Obligation FulfillOn="Permit" ObligationId="debug1">
$myattr1 = AttributeId="http://red.com/subject/groupsUserBelong"
<xacml2:AttributeAssignment AttributeId="debug1" DataType="http://www.w3.org/2001/XMLSchema#string">Attribute found: $myattr1</xacml2:AttributeAssignment>
</xacml2:Obligation>
</xacml2:Obligations>
更新了代码段
下面您将找到一个示例,说明如何将文本消息与来自PIP查找的动态数据相结合,通过ObligationExpressions生成输出:
<Rule Effect="Deny" RuleId="Deny-Rule1">
<Target></Target>
<Condition>
<Apply FunctionId="urn:oasis:names:tc:xacml:1.0:function:not">
<Apply FunctionId="urn:oasis:names:tc:xacml:1.0:function:string-is-in">
<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">myGroup</AttributeValue>
<AttributeDesignator Category="urn:oasis:names:tc:xacml:1.0:subject-category:access-subject" AttributeId="http://red.com/subject/groupsUserBelong" DataType="http://www.w3.org/2001/XMLSchema#string" MustBePresent="true"></AttributeDesignator>
</Apply>
</Apply>
</Condition>
<ObligationExpressions>
<ObligationExpression FulfillOn="Deny" ObligationId="groupscheck">
<AttributeAssignmentExpression AttributeId="urn:oasis:names:tc:xacml:3.0:example:attribute:text">
<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">Rule 1 - The groups validation error</AttributeValue>
</AttributeAssignmentExpression>
</ObligationExpression>
<ObligationExpression ObligationId="debug1" FulfillOn="Deny">
<AttributeAssignmentExpression AttributeId="debug1">
<AttributeDesignator AttributeId="http://red.com/subject/groupsUserBelong" Category="urn:oasis:names:tc:xacml:1.0:subject-category:access-subject" DataType="http://www.w3.org/2001/XMLSchema#string" MustBePresent="false"/>
</AttributeAssignmentExpression>
</ObligationExpression>
</ObligationExpressions>
</Rule>
答案 0 :(得分:0)
不,这在WSO2 IS和XACML 2.0中是不可能的。为此,您需要使用XACML 3.0。在XACML 3.0中添加了在义务中添加变量的能力(它们在XACML规范中称为属性赋值)。
Axiomatics Policy Server支持这一点。正如您所指出的,它是一个用于调试目的的简洁功能,但也适用于其他情况,例如。
在此示例中,义务将包含经理的电子邮件。以下是使用alfa语法的示例。
policy transferMoney{
target clause actionId == "transfer"
apply firstApplicable
rule denySelfTransfer{
condition requestor==recipient
deny
on deny {
obligation notifyManager{
message = "An employee tried to transfer money to themselves"
employee = employeeId
email = managerEmail
}
}
}
}