Migration Guide 2.10

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Keycloak Authorization and Keycloak 18.0.0

Keycloak version has been bumped to 18.0.0. It may affect quarkus-keycloak-authorization users who have authorization policies represented as Java Script and uploaded to Keycloak because the upload-scripts feature has been removed in Keycloak 18.0.0. Please see Keycloak Upgrading Guide for more information.

Here is a short summary of how to manage such Java Script policies in Keycloak 18.0.0.

Lets say you have the following authorization policy uploaded to Keycloak:

 import org.keycloak.representations.idm.authorization.PolicyRepresentation;
 import org.keycloak.representations.idm.authorization.ResourceServerRepresentation;
 
 public void uploadPolicy() {
        ResourceServerRepresentation authorizationSettings = new ResourceServerRepresentation();
        PolicyRepresentation policyAdmin = createJSPolicy("Admin Policy", "var identity = $evaluation.context.identity;\n" +
                "\n" +
                "if (identity.hasRealmRole(\"admin\")) {\n" +
                "$evaluation.grant();\n" +
                "}", authorizationSettings);
        // Upload this policy using Keycloak Admin Client...
 }

 private static PolicyRepresentation createJSPolicy(String name, String code, ResourceServerRepresentation authorizationSettings) {
     PolicyRepresentation policy = new PolicyRepresentation();
     policy.setName(name);
     policy.setType("script-" + code);
     authorizationSettings.getPolicies().add(policy);
     return policy;
 }

For it to work with Keycloak 18.0.0 the JavaScript code needs to be moved to a policy file such as admin.js:

var identity = $evaluation.context.identity;
if (identity.hasRealmRole("admin")) {
$evaluation.grant();
}

and this admin.js needs to be referred to from the Java code:

ResourceServerRepresentation authorizationSettings = new ResourceServerRepresentation();
PolicyRepresentation policyAdmin = createJSPolicy("Admin Policy", "admin-policy.js", authorizationSettings);
// Upload this policy using Keycloak Admin Client...

and from keycloak-scripts.json:

{
  "policies": [
    {
      "fileName": "admin-policy.js"
    }
  ]
}

Finally keycloak-scripts.json and admin-policy.js need to be added to a jar and deployed to Keycloak.