Extend the Policy Service

You can extend the policy service by adding policies that are applied only under certain conditions.

Add Conditional Policy Definitions

You can extend the policy service to support policies that are applied only under specific conditions. To apply a conditional policy to managed objects, add the policy to your project's managed object configuration. To apply a conditional policy to other objects, add it to your project's policy configuration.

The following managed object configuration shows a sample conditional policy for the password property of managed user objects. The policy indicates that sys-admin users have a more lenient password policy than regular employees:

{
    "objects" : [
        {
            "name" : "user",
            ...
                "properties" : {
                ...
                    "password" : {
                        "title" : "Password",
                        "type" : "string",
                        ...
                        "conditionalPolicies" : [
                            {
                                "condition" : {
                                    "type" : "text/javascript",
                                    "source" : "(fullObject.org === 'sys-admin')"
                                },
                                "dependencies" : [ "org" ],
                                "policies" : [
                                    {
                                        "policyId" : "max-age",
                                        "params" : {
                                            "maxDays" : ["90"]
                                        }
                                    }
                                ]
                            },
                            {
                                "condition" : {
                                    "type" : "text/javascript",
                                    "source" : "(fullObject.org === 'employees')"
                                },
                                "dependencies" : [ "org" ],
                                "policies" : [
                                    {
                                        "policyId" : "max-age",
                                        "params" : {
                                            "maxDays" : ["30"]
                                        }
                                    }
                                ]
                            }
                        ],
                        "fallbackPolicies" : [
                            {
                                "policyId" : "max-age",
                                "params" : {
                                    "maxDays" : ["7"]
                                }
                            }
                        ]
                    }
                    ...
}

There are two distinct scripted conditions (defined in the condition elements). The first condition asserts that the user object, contained in the fullObject argument, is a member of the sys-admin org. If that assertion is true, the max-age policy is applied to the password attribute of the user object, and the maximum number of days that a password may remain unchanged is set to 90.

The second condition asserts that the user object is a member of the employees org. If that assertion is true, the max-age policy is applied to the password attribute of the user object, and the maximum number of days that a password may remain unchanged is set to 30.

In the event that neither condition is met (the user object is not a member of the sys-admin org or the employees org), an optional fallback policy can be applied. In this example, the fallback policy also references the max-age policy and specifies that for such users, their password must be changed after 7 days.

The dependencies field prevents the condition scripts from being run at all, if the user object does not include an org attribute.

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