/*
* 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.jclouds.openstack.functions;
import static com.google.common.base.Preconditions.checkNotNull;
import static org.jclouds.http.HttpUtils.releasePayload;
import static org.jclouds.http.Uris.uriBuilder;
import static org.jclouds.openstack.reference.AuthHeaders.AUTH_TOKEN;
import static org.jclouds.openstack.reference.AuthHeaders.URL_SUFFIX;
import java.net.URI;
import java.util.Map.Entry;
import javax.annotation.Resource;
import org.jclouds.http.HttpRequest;
import org.jclouds.http.HttpResponse;
import org.jclouds.logging.Logger;
import org.jclouds.openstack.domain.AuthenticationResponse;
import org.jclouds.rest.InvocationContext;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Function;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableMap.Builder;
/**
* This parses {@link AuthenticationResponse} from HTTP headers.
*
* @author Adrian Cole
*/
public class ParseAuthenticationResponseFromHeaders implements Function<HttpResponse, AuthenticationResponse>,
InvocationContext<ParseAuthenticationResponseFromHeaders> {
@Resource
protected Logger logger = Logger.NULL;
private String hostToReplace;
/**
* parses the http response headers to create a new {@link AuthenticationResponse} object.
*/
public AuthenticationResponse apply(HttpResponse from) {
releasePayload(from);
// HTTP headers are case insensitive (RFC 2616) so we must allow for that when looking an header names for the URL keyword
Builder<String, URI> builder = ImmutableMap.builder();
for (Entry<String, String> entry : from.getHeaders().entries()) {
if (entry.getKey().toLowerCase().endsWith(URL_SUFFIX.toLowerCase()))
builder.put(entry.getKey(), getURI(entry.getValue()));
}
AuthenticationResponse response = new AuthenticationResponse(checkNotNull(from.getFirstHeaderOrNull(AUTH_TOKEN),
AUTH_TOKEN), builder.build());
logger.debug("will connect to: ", response);
return response;
}
// TODO: find the swift configuration or bug related to returning localhost
protected URI getURI(String headerValue) {
if (headerValue == null)
return null;
URI toReturn = URI.create(headerValue);
if (!"127.0.0.1".equals(toReturn.getHost()))
return toReturn;
return uriBuilder(toReturn).host(hostToReplace).build();
}
@Override
public ParseAuthenticationResponseFromHeaders setContext(HttpRequest request) {
String host = request.getEndpoint().getHost();
return setHostToReplace(host);
}
@VisibleForTesting
ParseAuthenticationResponseFromHeaders setHostToReplace(String hostToReplace) {
this.hostToReplace = hostToReplace;
return this;
}
}