/*
* Copyright 2016 Red Hat, Inc. and/or its affiliates
* and other contributors as indicated by the @author tags.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package org.keycloak.authorization.policy.provider.role;
import java.util.Map;
import java.util.Set;
import java.util.function.Function;
import org.keycloak.authorization.AuthorizationProvider;
import org.keycloak.authorization.identity.Identity;
import org.keycloak.authorization.model.Policy;
import org.keycloak.authorization.policy.evaluation.Evaluation;
import org.keycloak.authorization.policy.provider.PolicyProvider;
import org.keycloak.models.ClientModel;
import org.keycloak.models.RealmModel;
import org.keycloak.models.RoleModel;
import org.keycloak.representations.idm.authorization.RolePolicyRepresentation;
/**
* @author <a href="mailto:psilva@redhat.com">Pedro Igor</a>
*/
public class RolePolicyProvider implements PolicyProvider {
private final Function<Policy, RolePolicyRepresentation> representationFunction;
public RolePolicyProvider(Function<Policy, RolePolicyRepresentation> representationFunction) {
this.representationFunction = representationFunction;
}
@Override
public void evaluate(Evaluation evaluation) {
Policy policy = evaluation.getPolicy();
Set<RolePolicyRepresentation.RoleDefinition> roleIds = representationFunction.apply(policy).getRoles();
AuthorizationProvider authorizationProvider = evaluation.getAuthorizationProvider();
RealmModel realm = authorizationProvider.getKeycloakSession().getContext().getRealm();
Identity identity = evaluation.getContext().getIdentity();
for (RolePolicyRepresentation.RoleDefinition roleDefinition : roleIds) {
RoleModel role = realm.getRoleById(roleDefinition.getId());
if (role != null) {
boolean hasRole = hasRole(identity, role, realm);
if (!hasRole && roleDefinition.isRequired()) {
evaluation.deny();
return;
} else if (hasRole) {
evaluation.grant();
}
}
}
}
private boolean hasRole(Identity identity, RoleModel role, RealmModel realm) {
String roleName = role.getName();
if (role.isClientRole()) {
ClientModel clientModel = realm.getClientById(role.getContainerId());
return identity.hasClientRole(clientModel.getClientId(), roleName);
}
return identity.hasRealmRole(roleName);
}
@Override
public void close() {
}
}