src/main/java/org/keycloak/protocol/cas/mappers/UserClientRoleMappingMapper.java

@@ -4,9 +4,11 @@
import org.keycloak.protocol.ProtocolMapperUtils;
import org.keycloak.protocol.oidc.mappers.OIDCAttributeMapperHelper;
import org.keycloak.provider.ProviderConfigProperty;
import org.keycloak.representations.AccessToken;
import org.keycloak.utils.RoleResolveUtil;

import java.util.*;
import java.util.function.Predicate;
import java.util.stream.Collectors;

public class UserClientRoleMappingMapper extends AbstractUserRoleMappingMapper {

@@ -59,55 +61,31 @@
    }

    @Override
    public void setAttribute(Map<String, Object> attributes, ProtocolMapperModel mappingModel, UserSessionModel userSession) {
    public void setAttribute(Map<String, Object> attributes, ProtocolMapperModel mappingModel, UserSessionModel userSession,
                             KeycloakSession session, ClientSessionContext clientSessionCtx) {
        String clientId = mappingModel.getConfig().get(ProtocolMapperUtils.USER_MODEL_CLIENT_ROLE_MAPPING_CLIENT_ID);
        String rolePrefix = mappingModel.getConfig().get(ProtocolMapperUtils.USER_MODEL_CLIENT_ROLE_MAPPING_ROLE_PREFIX);

        setAttribute(attributes, mappingModel, userSession, getClientRoleFilter(clientId, userSession), rolePrefix);
    }

    private static Predicate<RoleModel> getClientRoleFilter(String clientId, UserSessionModel userSession) {
        if (clientId == null) {
            return RoleModel::isClientRole;
        }

        RealmModel clientRealm = userSession.getRealm();
        ClientModel client = clientRealm.getClientByClientId(clientId.trim());

        if (client == null) {
            return RoleModel::isClientRole;
        }

        ClientTemplateModel template = client.getClientTemplate();
        boolean useTemplateScope = template != null && client.useTemplateScope();
        boolean fullScopeAllowed = (useTemplateScope && template.isFullScopeAllowed()) || client.isFullScopeAllowed();

        Set<RoleModel> clientRoleMappings = client.getRoles();
        if (fullScopeAllowed) {
            return clientRoleMappings::contains;
        }

        Set<RoleModel> scopeMappings = new HashSet<>();

        if (useTemplateScope) {
            Set<RoleModel> templateScopeMappings = template.getScopeMappings();
            if (templateScopeMappings != null) {
                scopeMappings.addAll(templateScopeMappings);
        if (clientId != null && !clientId.isEmpty()) {
            AccessToken.Access access = RoleResolveUtil.getResolvedClientRoles(session, clientSessionCtx, clientId, false);
            if (access == null) {
                return;
            }
            setAttribute(attributes, mappingModel, access.getRoles(), rolePrefix);
        } else {
            // If clientId is not specified, we consider all clients
            Map<String, AccessToken.Access> allAccess = RoleResolveUtil.getAllResolvedClientRoles(session, clientSessionCtx);
            Set<String> allRoles = allAccess.values().stream().filter(Objects::nonNull)
                    .flatMap(access -> access.getRoles().stream())
                    .collect(Collectors.toSet());
            setAttribute(attributes, mappingModel, allRoles, rolePrefix);
        }

        Set<RoleModel> clientScopeMappings = client.getScopeMappings();
        if (clientScopeMappings != null) {
            scopeMappings.addAll(clientScopeMappings);
        }

        return role -> clientRoleMappings.contains(role) && scopeMappings.contains(role);
    }

    public static ProtocolMapperModel create(String clientId, String clientRolePrefix,
                                             String name, String tokenClaimName) {
        ProtocolMapperModel mapper = CASAttributeMapperHelper.createClaimMapper(name, tokenClaimName,
                "String", true, name, PROVIDER_ID);
                "String", PROVIDER_ID);
        mapper.getConfig().put(ProtocolMapperUtils.USER_MODEL_CLIENT_ROLE_MAPPING_CLIENT_ID, clientId);
        mapper.getConfig().put(ProtocolMapperUtils.USER_MODEL_CLIENT_ROLE_MAPPING_ROLE_PREFIX, clientRolePrefix);
        return mapper;