/*
* 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.broker.saml.mappers;
import org.keycloak.broker.provider.AbstractIdentityProviderMapper;
import org.keycloak.broker.provider.BrokeredIdentityContext;
import org.keycloak.broker.provider.ConfigConstants;
import org.keycloak.broker.provider.IdentityBrokerException;
import org.keycloak.broker.saml.SAMLEndpoint;
import org.keycloak.broker.saml.SAMLIdentityProviderFactory;
import org.keycloak.dom.saml.v2.assertion.AssertionType;
import org.keycloak.dom.saml.v2.assertion.AttributeStatementType;
import org.keycloak.dom.saml.v2.assertion.AttributeType;
import org.keycloak.models.IdentityProviderMapperModel;
import org.keycloak.models.KeycloakSession;
import org.keycloak.models.RealmModel;
import org.keycloak.models.RoleModel;
import org.keycloak.models.UserModel;
import org.keycloak.models.utils.KeycloakModelUtils;
import org.keycloak.provider.ProviderConfigProperty;
import java.util.ArrayList;
import java.util.List;
/**
* @author <a href="mailto:bill@burkecentral.com">Bill Burke</a>
* @version $Revision: 1 $
*/
public class AttributeToRoleMapper extends AbstractIdentityProviderMapper {
public static final String[] COMPATIBLE_PROVIDERS = {SAMLIdentityProviderFactory.PROVIDER_ID};
private static final List<ProviderConfigProperty> configProperties = new ArrayList<ProviderConfigProperty>();
public static final String ATTRIBUTE_NAME = "attribute.name";
public static final String ATTRIBUTE_FRIENDLY_NAME = "attribute.friendly.name";
public static final String ATTRIBUTE_VALUE = "attribute.value";
static {
ProviderConfigProperty property;
property = new ProviderConfigProperty();
property.setName(ATTRIBUTE_NAME);
property.setLabel("Attribute Name");
property.setHelpText("Name of attribute to search for in assertion. You can leave this blank and specify a friendly name instead.");
property.setType(ProviderConfigProperty.STRING_TYPE);
configProperties.add(property);
property = new ProviderConfigProperty();
property.setName(ATTRIBUTE_FRIENDLY_NAME);
property.setLabel("Friendly Name");
property.setHelpText("Friendly name of attribute to search for in assertion. You can leave this blank and specify a name instead.");
property.setType(ProviderConfigProperty.STRING_TYPE);
configProperties.add(property);
property = new ProviderConfigProperty();
property.setName(ATTRIBUTE_VALUE);
property.setLabel("Attribute Value");
property.setHelpText("Value the attribute must have. If the attribute is a list, then the value must be contained in the list.");
property.setType(ProviderConfigProperty.STRING_TYPE);
configProperties.add(property);
property = new ProviderConfigProperty();
property.setName(ConfigConstants.ROLE);
property.setLabel("Role");
property.setHelpText("Role to grant to user. Click 'Select Role' button to browse roles, or just type it in the textbox. To reference an application role the syntax is appname.approle, i.e. myapp.myrole");
property.setType(ProviderConfigProperty.ROLE_TYPE);
configProperties.add(property);
}
public static final String PROVIDER_ID = "saml-role-idp-mapper";
@Override
public List<ProviderConfigProperty> getConfigProperties() {
return configProperties;
}
@Override
public String getId() {
return PROVIDER_ID;
}
@Override
public String[] getCompatibleProviders() {
return COMPATIBLE_PROVIDERS;
}
@Override
public String getDisplayCategory() {
return "Role Mapper";
}
@Override
public String getDisplayType() {
return "SAML Attribute to Role";
}
@Override
public void importNewUser(KeycloakSession session, RealmModel realm, UserModel user, IdentityProviderMapperModel mapperModel, BrokeredIdentityContext context) {
String roleName = mapperModel.getConfig().get(ConfigConstants.ROLE);
if (isAttributePresent(mapperModel, context)) {
RoleModel role = KeycloakModelUtils.getRoleFromString(realm, roleName);
if (role == null) throw new IdentityBrokerException("Unable to find role: " + roleName);
user.grantRole(role);
}
}
protected boolean isAttributePresent(IdentityProviderMapperModel mapperModel, BrokeredIdentityContext context) {
String name = mapperModel.getConfig().get(ATTRIBUTE_NAME);
if (name != null && name.trim().equals("")) name = null;
String friendly = mapperModel.getConfig().get(ATTRIBUTE_FRIENDLY_NAME);
if (friendly != null && friendly.trim().equals("")) friendly = null;
String desiredValue = mapperModel.getConfig().get(ATTRIBUTE_VALUE);
AssertionType assertion = (AssertionType)context.getContextData().get(SAMLEndpoint.SAML_ASSERTION);
for (AttributeStatementType statement : assertion.getAttributeStatements()) {
for (AttributeStatementType.ASTChoiceType choice : statement.getAttributes()) {
AttributeType attr = choice.getAttribute();
if (name != null && !name.equals(attr.getName())) continue;
if (friendly != null && !name.equals(attr.getFriendlyName())) continue;
for (Object val : attr.getAttributeValue()) {
if (val.equals(desiredValue)) return true;
}
}
}
return false;
}
@Override
public void updateBrokeredUser(KeycloakSession session, RealmModel realm, UserModel user, IdentityProviderMapperModel mapperModel, BrokeredIdentityContext context) {
String roleName = mapperModel.getConfig().get(ConfigConstants.ROLE);
RoleModel role = KeycloakModelUtils.getRoleFromString(realm, roleName);
if (role == null) throw new IdentityBrokerException("Unable to find role: " + roleName);
if (!isAttributePresent(mapperModel, context)) {
user.deleteRoleMapping(role);
}else{
user.grantRole(role);
}
}
@Override
public String getHelpText() {
return "If a claim exists, grant the user the specified realm or application role.";
}
}