AdvancedAttributeToGroupMapper.java
/*
* Copyright 2023 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.BrokeredIdentityContext;
import org.keycloak.broker.provider.ConfigConstants;
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.models.IdentityProviderMapperModel;
import org.keycloak.models.IdentityProviderSyncMode;
import org.keycloak.provider.ProviderConfigProperty;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.stream.Collectors;
import static org.keycloak.utils.RegexUtils.valueMatchesRegex;
/**
* @author <a href="mailto:denis.bernard@avanade.com">Denis Bernard</a>
*/
public class AdvancedAttributeToGroupMapper extends AbstractAttributeToGroupMapper {
public static final String PROVIDER_ID = "saml-advanced-group-idp-mapper";
public static final String ATTRIBUTE_PROPERTY_NAME = "attributes";
public static final String ARE_ATTRIBUTE_VALUES_REGEX_PROPERTY_NAME = "are.attribute.values.regex";
private static final Set<IdentityProviderSyncMode> IDENTITY_PROVIDER_SYNC_MODES = new HashSet<>(Arrays.asList(IdentityProviderSyncMode.values()));
public static final String[] COMPATIBLE_PROVIDERS = {
SAMLIdentityProviderFactory.PROVIDER_ID
};
private static final List<ProviderConfigProperty> configProperties =
new ArrayList<>();
static {
ProviderConfigProperty attributeMappingProperty = new ProviderConfigProperty();
attributeMappingProperty.setName(ATTRIBUTE_PROPERTY_NAME);
attributeMappingProperty.setLabel("Attributes");
attributeMappingProperty.setHelpText("Name and value of the attributes to search for in token. You can reference nested attributes using a '.', i.e. 'address.locality'. To use dot (.) literally, escape it with backslash (\\.)");
attributeMappingProperty.setType(ProviderConfigProperty.MAP_TYPE);
configProperties.add(attributeMappingProperty);
ProviderConfigProperty isAttributeRegexProperty = new ProviderConfigProperty();
isAttributeRegexProperty.setName(ARE_ATTRIBUTE_VALUES_REGEX_PROPERTY_NAME);
isAttributeRegexProperty.setLabel("Regex Attribute Values");
isAttributeRegexProperty.setHelpText("If enabled attribute values are interpreted as regular expressions.");
isAttributeRegexProperty.setType(ProviderConfigProperty.BOOLEAN_TYPE);
configProperties.add(isAttributeRegexProperty);
ProviderConfigProperty groupProperty = new ProviderConfigProperty();
groupProperty.setName(ConfigConstants.GROUP);
groupProperty.setLabel("Group");
groupProperty.setHelpText("Group to assign the user to if attribute is present.");
groupProperty.setType(ProviderConfigProperty.GROUP_TYPE);
configProperties.add(groupProperty);
}
@Override
public boolean supportsSyncMode(IdentityProviderSyncMode syncMode) {
return IDENTITY_PROVIDER_SYNC_MODES.contains(syncMode);
}
@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 "Group Importer";
}
@Override
public String getDisplayType() {
return "Advanced Attribute to Group";
}
@Override
public String getHelpText() {
return "If all attributes exists, assign the user to the specified group.";
}
protected boolean applies(final IdentityProviderMapperModel mapperModel, final BrokeredIdentityContext context) {
Map<String, String> attributes = mapperModel.getConfigMap(ATTRIBUTE_PROPERTY_NAME);
boolean areAttributeValuesRegexes = Boolean.parseBoolean(mapperModel.getConfig().get(ARE_ATTRIBUTE_VALUES_REGEX_PROPERTY_NAME));
AssertionType assertion = (AssertionType) context.getContextData().get(SAMLEndpoint.SAML_ASSERTION);
Set<AttributeStatementType> attributeAssertions = assertion.getAttributeStatements();
if (attributeAssertions == null) {
return false;
}
for (Map.Entry<String, String> attribute : attributes.entrySet()) {
String attributeKey = attribute.getKey();
List<Object> attributeValues = attributeAssertions.stream()
.flatMap(statements -> statements.getAttributes().stream())
.filter(choiceType -> attributeKey.equals(choiceType.getAttribute().getName())
|| attributeKey.equals(choiceType.getAttribute().getFriendlyName()))
// Several statements with same name are treated like one with several values
.flatMap(choiceType -> choiceType.getAttribute().getAttributeValue().stream())
.collect(Collectors.toList());
boolean attributeValueMatch = areAttributeValuesRegexes ? valueMatchesRegex(attribute.getValue(), attributeValues) : attributeValues.contains(attribute.getValue());
if (!attributeValueMatch) {
return false;
}
}
return true;
}
}