/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.cxf.rs.security.saml;
import java.net.URI;
import javax.ws.rs.container.ContainerRequestContext;
import javax.ws.rs.core.Form;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.core.Response;
import org.apache.cxf.jaxrs.impl.UriInfoImpl;
import org.apache.cxf.jaxrs.provider.FormEncodingProvider;
import org.apache.cxf.jaxrs.utils.FormUtils;
import org.apache.cxf.jaxrs.utils.JAXRSUtils;
import org.apache.cxf.message.Message;
public class SamlFormInHandler extends AbstractSamlBase64InHandler {
private static final String SAML_ELEMENT = "SAMLToken";
private static final String SAML_RELAY_STATE = "RelayState";
private FormEncodingProvider<Form> provider = new FormEncodingProvider<Form>(true);
public SamlFormInHandler() {
}
@Override
public void filter(ContainerRequestContext context) {
Message message = JAXRSUtils.getCurrentMessage();
Form form = readFormData(message);
MultivaluedMap<String, String> formData = form.asMap();
String assertion = formData.getFirst(SAML_ELEMENT);
handleToken(message, assertion);
// redirect if needed
String samlRequestURI = formData.getFirst(SAML_RELAY_STATE);
if (samlRequestURI != null) {
// RelayState may actually represent a reference to a transient local state
// containing the actual REQUEST URI client was using before being redirected
// back to IDP - at the moment assume it's URI
UriInfoImpl ui = new UriInfoImpl(message);
if (!samlRequestURI.startsWith(ui.getBaseUri().toString())) {
context.abortWith(Response.status(302).location(URI.create(samlRequestURI)).build());
return;
}
}
formData.remove(SAML_ELEMENT);
formData.remove(SAML_RELAY_STATE);
// restore input stream
try {
FormUtils.restoreForm(provider, form, message);
} catch (Exception ex) {
throwFault(ex.getMessage(), ex);
}
}
private Form readFormData(Message message) {
try {
return FormUtils.readForm(provider, message);
} catch (Exception ex) {
throwFault("Error reading the form", ex);
}
return null;
}
}