/**
* 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.io.InputStream;
import java.lang.annotation.Annotation;
import java.net.URI;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import org.apache.cxf.io.CachedOutputStream;
import org.apache.cxf.jaxrs.ext.form.Form;
import org.apache.cxf.jaxrs.impl.MetadataMap;
import org.apache.cxf.jaxrs.impl.UriInfoImpl;
import org.apache.cxf.jaxrs.model.ClassResourceInfo;
import org.apache.cxf.jaxrs.provider.FormEncodingProvider;
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 provider = new FormEncodingProvider();
public SamlFormInHandler() {
provider.setExpectedEncoded(true);
}
public Response handleRequest(Message message, ClassResourceInfo resourceClass) {
Form form = readFormData(message);
String assertion = form.getData().getFirst(SAML_ELEMENT);
handleToken(message, assertion);
// redirect if needed
String samlRequestURI = form.getData().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())) {
return Response.status(302).location(URI.create(samlRequestURI)).build();
}
}
// restore input stream
CachedOutputStream os = new CachedOutputStream();
form.getData().remove(SAML_ELEMENT);
form.getData().remove(SAML_RELAY_STATE);
try {
provider.writeTo(form, Form.class, Form.class, new Annotation[]{},
MediaType.APPLICATION_FORM_URLENCODED_TYPE, new MetadataMap<String, Object>(), os);
message.setContent(InputStream.class, os.getInputStream());
} catch (Exception ex) {
throwFault(ex.getMessage(), ex);
}
return null;
}
@SuppressWarnings("unchecked")
private Form readFormData(Message message) {
try {
return (Form)provider.readFrom((Class)Form.class, Form.class,
new Annotation[]{}, MediaType.APPLICATION_FORM_URLENCODED_TYPE,
new MetadataMap<String, String>(),
message.getContent(InputStream.class));
} catch (Exception ex) {
throwFault("Error reading the form", ex);
}
return null;
}
}