1.16. 以编程方式检查权限范围

# path policy with enforced scope 'read' for method 'GET'
quarkus.keycloak.policy-enforcer.paths.1.name=Scope Permission Resource
quarkus.keycloak.policy-enforcer.paths.1.paths=/api/protected/standard-way
quarkus.keycloak.policy-enforcer.paths.1.methods.get.method=GET
quarkus.keycloak.policy-enforcer.paths.1.methods.get.scopes=read 

# path policies without scope
quarkus.keycloak.policy-enforcer.paths.2.name=Scope Permission Resource
quarkus.keycloak.policy-enforcer.paths.2.paths=/api/protected/programmatic-way,/api/protected/annotation-way

import java.security.BasicPermission;
import java.util.List;

import jakarta.inject.Inject;
import jakarta.ws.rs.ForbiddenException;
import jakarta.ws.rs.GET;
import jakarta.ws.rs.Path;

import org.keycloak.representations.idm.authorization.Permission;

import io.quarkus.security.PermissionsAllowed;
import io.quarkus.security.identity.SecurityIdentity;
import io.smallrye.mutiny.Uni;

@Path("/api/protected")
public class ProtectedResource {

    @Inject
    SecurityIdentity identity;

    @GET
    @Path("/standard-way")
    public Uni<List<Permission>> standardWay() { 

        return Uni.createFrom().item(identity.<List<Permission>> getAttribute("permissions"));
    }

    @GET
    @Path("/programmatic-way")
    public Uni<List<Permission>> programmaticWay() {
        var requiredPermission = new BasicPermission("Scope Permission Resource") {
            @Override
            public String getActions() {
                return "read";
            }
        };
        return identity.checkPermission(requiredPermission).onItem() 

                .transform(granted -> {
                    if (granted) {
                        return identity.getAttribute("permissions");
                    }
                    throw new ForbiddenException();
                });
    }

    @PermissionsAllowed("Scope Permission Resource:read") 

    @GET
    @Path("/annotation-way")
    public Uni<List<Permission>> annotationWay() {
        return Uni.createFrom().item(identity.<List<Permission>> getAttribute("permissions"));
    }
}