/*
* 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.adapters.cloned;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import java.io.IOException;
import java.io.InputStream;
import javax.xml.crypto.dsig.keyinfo.KeyInfo;
import org.apache.http.HttpStatus;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.util.EntityUtils;
import org.keycloak.adapters.saml.descriptor.parsers.SamlDescriptorIDPKeysExtractor;
import org.keycloak.common.util.MultivaluedHashMap;
import org.keycloak.saml.common.exceptions.ParsingException;
/**
* @author <a href="mailto:hmlnarik@redhat.com">Hynek Mlnařík</a>
*/
public class HttpAdapterUtils {
public static MultivaluedHashMap<String, KeyInfo> downloadKeysFromSamlDescriptor(HttpClient client, String descriptorUrl) throws HttpClientAdapterException {
try {
HttpGet httpRequest = new HttpGet(descriptorUrl);
HttpResponse response = client.execute(httpRequest);
int status = response.getStatusLine().getStatusCode();
if (status != HttpStatus.SC_OK) {
EntityUtils.consumeQuietly(response.getEntity());
throw new HttpClientAdapterException("Unexpected status = " + status);
}
HttpEntity entity = response.getEntity();
if (entity == null) {
throw new HttpClientAdapterException("There was no entity.");
}
MultivaluedHashMap<String, KeyInfo> res;
try (InputStream is = entity.getContent()) {
res = extractKeysFromSamlDescriptor(is);
}
EntityUtils.consumeQuietly(entity);
return res;
} catch (IOException | ParsingException e) {
throw new HttpClientAdapterException("IO error", e);
}
}
/**
* Parses SAML descriptor and extracts keys from it.
* @param xmlStream
* @return List of KeyInfo objects containing keys from the descriptor.
* @throws IOException
*/
public static MultivaluedHashMap<String, KeyInfo> extractKeysFromSamlDescriptor(InputStream xmlStream) throws ParsingException {
Object res = new SamlDescriptorIDPKeysExtractor().parse(xmlStream);
return (MultivaluedHashMap<String, KeyInfo>) res;
}
}