/*
* JBoss, Home of Professional Open Source.
* Copyright 2012, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.wildfly.extension.picketlink.federation.model.parser;
import org.jboss.as.controller.SimpleAttributeDefinition;
import org.jboss.as.controller.descriptions.ModelDescriptionConstants;
import org.jboss.as.controller.operations.common.Util;
import org.jboss.dmr.ModelNode;
import org.jboss.staxmapper.XMLElementReader;
import org.jboss.staxmapper.XMLExtendedStreamReader;
import org.wildfly.extension.picketlink.common.model.ModelElement;
import org.wildfly.extension.picketlink.common.model.XMLElement;
import org.wildfly.extension.picketlink.federation.FederationExtension;
import org.wildfly.extension.picketlink.federation.Namespace;
import org.wildfly.extension.picketlink.federation.model.FederationResourceDefinition;
import org.wildfly.extension.picketlink.federation.model.handlers.HandlerParameterResourceDefinition;
import org.wildfly.extension.picketlink.federation.model.handlers.HandlerResourceDefinition;
import org.wildfly.extension.picketlink.federation.model.idp.AttributeManagerResourceDefinition;
import org.wildfly.extension.picketlink.federation.model.idp.IdentityProviderResourceDefinition;
import org.wildfly.extension.picketlink.federation.model.idp.RoleGeneratorResourceDefinition;
import org.wildfly.extension.picketlink.federation.model.idp.TrustDomainResourceDefinition;
import org.wildfly.extension.picketlink.federation.model.keystore.KeyStoreProviderResourceDefinition;
import org.wildfly.extension.picketlink.federation.model.saml.SAMLResourceDefinition;
import org.wildfly.extension.picketlink.federation.model.sp.ServiceProviderResourceDefinition;
import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamException;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.ADD;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.OP_ADDR;
import static org.jboss.as.controller.parsing.ParseUtils.duplicateNamedElement;
import static org.jboss.as.controller.parsing.ParseUtils.requireNoAttributes;
import static org.jboss.as.controller.parsing.ParseUtils.unexpectedAttribute;
import static org.jboss.as.controller.parsing.ParseUtils.unexpectedElement;
import static org.wildfly.extension.picketlink.common.model.ModelElement.COMMON_HANDLER;
import static org.wildfly.extension.picketlink.common.model.ModelElement.COMMON_HANDLER_PARAMETER;
import static org.wildfly.extension.picketlink.common.model.ModelElement.COMMON_NAME;
import static org.wildfly.extension.picketlink.common.model.ModelElement.FEDERATION;
import static org.wildfly.extension.picketlink.common.model.ModelElement.IDENTITY_PROVIDER;
import static org.wildfly.extension.picketlink.common.model.ModelElement.IDENTITY_PROVIDER_ATTRIBUTE_MANAGER;
import static org.wildfly.extension.picketlink.common.model.ModelElement.IDENTITY_PROVIDER_ROLE_GENERATOR;
import static org.wildfly.extension.picketlink.common.model.ModelElement.IDENTITY_PROVIDER_TRUST_DOMAIN;
import static org.wildfly.extension.picketlink.common.model.ModelElement.KEY_STORE;
import static org.wildfly.extension.picketlink.common.model.ModelElement.SAML;
import static org.wildfly.extension.picketlink.common.model.ModelElement.SERVICE_PROVIDER;
/**
* @author Pedro Igor
*/
public abstract class AbstractFederationSubsystemReader implements XMLStreamConstants, XMLElementReader<List<ModelNode>> {
@Override
public void readElement(XMLExtendedStreamReader reader, List<ModelNode> addOperations) throws XMLStreamException {
requireNoAttributes(reader);
Namespace nameSpace = Namespace.forUri(reader.getNamespaceURI());
ModelNode subsystemNode = createSubsystemRoot();
addOperations.add(subsystemNode);
switch (nameSpace) {
case PICKETLINK_FEDERATION_1_0:
this.readElement(reader, subsystemNode, addOperations);
break;
case PICKETLINK_FEDERATION_1_1:
case PICKETLINK_FEDERATION_2_0:
this.readElement(reader, subsystemNode, addOperations);
break;
default:
throw unexpectedElement(reader);
}
}
private void readElement(XMLExtendedStreamReader reader, ModelNode subsystemNode, List<ModelNode> addOperations)
throws XMLStreamException {
while (reader.hasNext() && reader.nextTag() != END_DOCUMENT) {
if (!reader.isStartElement()) {
continue;
}
// if the current element is supported but is not a model element
if (XMLElement.forName(reader.getLocalName()) != null) {
continue;
}
ModelElement modelKey = ModelElement.forName(reader.getLocalName());
if (modelKey == null) {
throw unexpectedElement(reader);
}
switch (modelKey) {
case FEDERATION:
parseFederation(reader, subsystemNode, addOperations);
break;
default:
throw unexpectedElement(reader);
}
}
}
private void parseFederation(final XMLExtendedStreamReader reader, final ModelNode subsystemNode,
final List<ModelNode> addOperations) throws XMLStreamException {
ModelNode federationNode = parseConfig(reader, FEDERATION, COMMON_NAME.getName(), subsystemNode,
Arrays.asList(FederationResourceDefinition.ATTRIBUTE_DEFINITIONS), addOperations);
parseElement(new ElementParser() {
@Override
public void parse(final XMLExtendedStreamReader reader, final ModelElement element, final ModelNode parentNode,
List<ModelNode> addOperations) throws XMLStreamException {
switch (element) {
case KEY_STORE:
parseKeyStore(reader, parentNode, addOperations);
break;
case SAML:
parseConfig(reader, SAML, null, parentNode, SAMLResourceDefinition.INSTANCE.getAttributes(),
addOperations);
break;
case IDENTITY_PROVIDER:
parseIdentityProviderConfig(reader, parentNode, addOperations);
break;
case SERVICE_PROVIDER:
parseServiceProviderConfig(reader, parentNode, addOperations);
break;
default:
throw unexpectedElement(reader);
}
}
}, FEDERATION, federationNode, reader, addOperations);
}
protected void parseKeyStore(XMLExtendedStreamReader reader, ModelNode parentNode, List<ModelNode> addOperations) throws XMLStreamException {
ModelNode identityProviderNode = parseConfig(reader, KEY_STORE, null, parentNode,
KeyStoreProviderResourceDefinition.INSTANCE.getAttributes(), addOperations);
parseElement(new ElementParser() {
@Override
public void parse(final XMLExtendedStreamReader reader, final ModelElement element, final ModelNode parentNode,
List<ModelNode> addOperations) throws XMLStreamException {
throw unexpectedElement(reader);
}
}, KEY_STORE, identityProviderNode, reader, addOperations);
}
private void parseServiceProviderConfig(final XMLExtendedStreamReader reader, ModelNode federationNode,
final List<ModelNode> addOperations) throws XMLStreamException {
ModelNode serviceProviderNode = parseConfig(reader, SERVICE_PROVIDER,
COMMON_NAME.getName(), federationNode, Arrays.asList(ServiceProviderResourceDefinition.ATTRIBUTE_DEFINITIONS), addOperations);
parseElement(new ElementParser() {
@Override
public void parse(final XMLExtendedStreamReader reader, final ModelElement element, final ModelNode parentNode,
List<ModelNode> addOperations) throws XMLStreamException {
switch (element) {
case COMMON_HANDLER:
parseHandlerConfig(reader, parentNode, addOperations);
break;
}
}
}, SERVICE_PROVIDER, serviceProviderNode, reader, addOperations);
}
protected void parseHandlerConfig(final XMLExtendedStreamReader reader, final ModelNode entityProviderNode, final List<ModelNode> addOperations) throws XMLStreamException {
ModelNode handlerNode = parseConfig(reader, COMMON_HANDLER, COMMON_NAME.getName(), entityProviderNode, HandlerResourceDefinition.INSTANCE
.getAttributes(), addOperations);
parseElement(new ElementParser() {
@Override
public void parse(final XMLExtendedStreamReader reader, final ModelElement element, final ModelNode parentNode,
List<ModelNode> addOperations) throws XMLStreamException {
switch (element) {
case COMMON_HANDLER_PARAMETER:
parseConfig(reader, COMMON_HANDLER_PARAMETER, COMMON_NAME.getName(), parentNode,
HandlerParameterResourceDefinition.INSTANCE.getAttributes(), addOperations);
break;
default:
throw unexpectedElement(reader);
}
}
}, COMMON_HANDLER, handlerNode, reader, addOperations);
}
private void parseIdentityProviderConfig(final XMLExtendedStreamReader reader, final ModelNode federationNode,
final List<ModelNode> addOperations) throws XMLStreamException {
ModelNode identityProviderNode = parseConfig(reader, IDENTITY_PROVIDER,
COMMON_NAME.getName(), federationNode,
Arrays.asList(IdentityProviderResourceDefinition.ATTRIBUTE_DEFINITIONS), addOperations);
parseElement(new ElementParser() {
@Override
public void parse(final XMLExtendedStreamReader reader, final ModelElement element, final ModelNode parentNode,
List<ModelNode> addOperations) throws XMLStreamException {
switch (element) {
case IDENTITY_PROVIDER_TRUST_DOMAIN:
parseConfig(reader, IDENTITY_PROVIDER_TRUST_DOMAIN, COMMON_NAME.getName(), parentNode,
TrustDomainResourceDefinition.INSTANCE.getAttributes(), addOperations);
break;
case IDENTITY_PROVIDER_ROLE_GENERATOR:
parseConfig(reader, IDENTITY_PROVIDER_ROLE_GENERATOR, COMMON_NAME.getName(), parentNode,
RoleGeneratorResourceDefinition.INSTANCE.getAttributes(), addOperations);
break;
case IDENTITY_PROVIDER_ATTRIBUTE_MANAGER:
parseConfig(reader, IDENTITY_PROVIDER_ATTRIBUTE_MANAGER, COMMON_NAME.getName(), parentNode,
AttributeManagerResourceDefinition.INSTANCE.getAttributes(), addOperations);
break;
case COMMON_HANDLER:
parseHandlerConfig(reader, parentNode, addOperations);
break;
default:
throw unexpectedElement(reader);
}
}
}, IDENTITY_PROVIDER, identityProviderNode, reader, addOperations);
}
/**
* Creates the root subsystem's root address.
*
* @return
*/
private ModelNode createSubsystemRoot() {
ModelNode subsystemAddress = new ModelNode();
subsystemAddress.add(ModelDescriptionConstants.SUBSYSTEM, FederationExtension.SUBSYSTEM_NAME);
subsystemAddress.protect();
return Util.getEmptyOperation(ADD, subsystemAddress);
}
/**
* Reads a element from the stream considering the parameters.
*
* @param reader XMLExtendedStreamReader instance from which the elements are read.
* @param xmlElement Name of the Model Element to be parsed.
* @param key Name of the attribute to be used to as the key for the model.
* @param addOperations List of operations.
* @param lastNode Parent ModelNode instance.
* @param attributes AttributeDefinition instances to be used to extract the attributes and populate the resulting model.
*
* @return A ModelNode instance populated.
*
* @throws javax.xml.stream.XMLStreamException
*/
protected ModelNode parseConfig(XMLExtendedStreamReader reader, ModelElement xmlElement, String key, ModelNode lastNode,
List<SimpleAttributeDefinition> attributes, List<ModelNode> addOperations) throws XMLStreamException {
if (!reader.getLocalName().equals(xmlElement.getName())) {
return null;
}
ModelNode modelNode = Util.getEmptyOperation(ADD, null);
int attributeCount = reader.getAttributeCount();
for (int i = 0; i < attributeCount; i++) {
String attributeLocalName = reader.getAttributeLocalName(i);
if (ModelElement.forName(attributeLocalName) == null) {
throw unexpectedAttribute(reader, i);
}
}
for (SimpleAttributeDefinition simpleAttributeDefinition : attributes) {
String attributeValue = reader.getAttributeValue("", simpleAttributeDefinition.getXmlName());
simpleAttributeDefinition.parseAndSetParameter(attributeValue, modelNode, reader);
}
String name = xmlElement.getName();
if (key != null) {
name = key;
if (modelNode.hasDefined(key)) {
name = modelNode.get(key).asString();
} else {
String attributeValue = reader.getAttributeValue("", key);
if (attributeValue != null) {
name = attributeValue;
}
}
}
modelNode.get(ModelDescriptionConstants.OP_ADDR).set(lastNode.clone().get(OP_ADDR).add(xmlElement.getName(), name));
addOperations.add(modelNode);
return modelNode;
}
protected void parseElement(final ElementParser parser, ModelElement parentElement, final ModelNode parentNode,
final XMLExtendedStreamReader reader, final List<ModelNode> addOperations) throws XMLStreamException {
Set<String> visited = new HashSet<>();
while (reader.hasNext() && reader.nextTag() != END_DOCUMENT) {
String tagName = reader.getLocalName();
if (!reader.isStartElement()) {
if (reader.isEndElement() && tagName.equals(parentElement.getName())) {
break;
}
continue;
}
if (!tagName.equals(parentElement.getName())) {
ModelElement element = ModelElement.forName(tagName);
if (element != null) {
parser.parse(reader, element, parentNode, addOperations);
} else {
if (XMLElement.forName(tagName) != null) {
if (visited.contains(tagName)) {
throw duplicateNamedElement(reader, tagName);
}
} else {
throw unexpectedElement(reader);
}
}
}
visited.add(tagName);
}
}
interface ElementParser {
void parse(XMLExtendedStreamReader reader, ModelElement element, ModelNode parentNode, List<ModelNode> addOperations)
throws XMLStreamException;
}
}