| /* |
| * 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.gae; |
| |
| import static com.google.appengine.api.urlfetch.FetchOptions.Builder.disallowTruncate; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.net.MalformedURLException; |
| import java.net.URL; |
| import java.util.Map.Entry; |
| import java.util.Set; |
| |
| import javax.inject.Inject; |
| import javax.inject.Singleton; |
| |
| import org.jclouds.http.HttpRequest; |
| import org.jclouds.http.HttpUtils; |
| import org.jclouds.io.ContentMetadataCodec; |
| import org.jclouds.io.Payload; |
| import org.jclouds.util.Closeables2; |
| |
| import com.google.appengine.api.urlfetch.FetchOptions; |
| import com.google.appengine.api.urlfetch.HTTPHeader; |
| import com.google.appengine.api.urlfetch.HTTPMethod; |
| import com.google.appengine.api.urlfetch.HTTPRequest; |
| import com.google.appengine.repackaged.com.google.common.base.Throwables; |
| import com.google.common.base.Function; |
| import com.google.common.collect.ImmutableSet; |
| import com.google.common.io.ByteStreams; |
| import com.google.common.net.HttpHeaders; |
| |
| @Singleton |
| public class ConvertToGaeRequest implements Function<HttpRequest, HTTPRequest> { |
| public static final String USER_AGENT = "jclouds/1.0 urlfetch/1.4.3"; |
| // http://code.google.com/appengine/docs/java/urlfetch/overview.html |
| public final Set<String> prohibitedHeaders = ImmutableSet.of("Accept-Encoding", "Content-Length", "Host", "Var", |
| "X-Forwarded-For"); |
| |
| protected final HttpUtils utils; |
| protected final ContentMetadataCodec contentMetadataCodec; |
| |
| @Inject |
| ConvertToGaeRequest(HttpUtils utils, ContentMetadataCodec contentMetadataCodec) { |
| this.utils = utils; |
| this.contentMetadataCodec = contentMetadataCodec; |
| } |
| |
| /** |
| * byte [] content is replayable and the only content type supportable by GAE. As such, we |
| * convert the original request content to a byte array. |
| */ |
| @Override |
| public HTTPRequest apply(HttpRequest request) { |
| URL url = null; |
| try { |
| url = request.getEndpoint().toURL(); |
| } catch (MalformedURLException e) { |
| Throwables.propagate(e); |
| } |
| |
| FetchOptions options = disallowTruncate(); |
| options.doNotFollowRedirects(); |
| if (utils.relaxHostname() || utils.trustAllCerts()) |
| options.doNotFollowRedirects(); |
| options.setDeadline(10.0); |
| |
| HTTPRequest gaeRequest = new HTTPRequest(url, HTTPMethod.valueOf(request.getMethod().toString()), options); |
| |
| for (Entry<String, String> entry : request.getHeaders().entries()) { |
| String header = entry.getKey(); |
| if (!prohibitedHeaders.contains(header)) |
| gaeRequest.addHeader(new HTTPHeader(header, entry.getValue())); |
| } |
| gaeRequest.addHeader(new HTTPHeader(HttpHeaders.USER_AGENT, USER_AGENT)); |
| /** |
| * byte [] content is replayable and the only content type supportable by GAE. As such, we |
| * convert the original request content to a byte array. |
| */ |
| if (request.getPayload() != null) { |
| InputStream input = request.getPayload().getInput(); |
| try { |
| byte[] array = ByteStreams.toByteArray(input); |
| if (!request.getPayload().isRepeatable()) { |
| Payload oldPayload = request.getPayload(); |
| request.setPayload(array); |
| HttpUtils.copy(oldPayload.getContentMetadata(), request.getPayload().getContentMetadata()); |
| } |
| gaeRequest.setPayload(array); |
| if (array.length > 0) { |
| gaeRequest.setHeader(new HTTPHeader("Expect", "100-continue")); |
| } |
| } catch (IOException e) { |
| Throwables.propagate(e); |
| } finally { |
| Closeables2.closeQuietly(input); |
| } |
| |
| for (Entry<String, String> header : contentMetadataCodec.toHeaders( |
| request.getPayload().getContentMetadata()).entries()) { |
| if (!prohibitedHeaders.contains(header.getKey())) |
| gaeRequest.setHeader(new HTTPHeader(header.getKey(), header.getValue())); |
| } |
| } |
| return gaeRequest; |
| } |
| } |