org.glassfish.jersey.client.internal.HttpUrlExpect100ContinueConnectorExtension Maven / Gradle / Ivy

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A bundle project producing JAX-RS RI bundles. The primary artifact is an "all-in-one" OSGi-fied JAX-RS RI bundle (jaxrs-ri.jar). Attached to that are two compressed JAX-RS RI archives. The first archive (jaxrs-ri.zip) consists of binary RI bits and contains the API jar (under "api" directory), RI libraries (under "lib" directory) as well as all external RI dependencies (under "ext" directory). The secondary archive (jaxrs-ri-src.zip) contains buildable JAX-RS RI source bundle and contains the API jar (under "api" directory), RI sources (under "src" directory) as well as all external RI dependencies (under "ext" directory). The second archive also contains "build.xml" ANT script that builds the RI sources. To build the JAX-RS RI simply unzip the archive, cd to the created jaxrs-ri directory and invoke "ant" from the command line.

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/*
 * Copyright (c) 2020 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package org.glassfish.jersey.client.internal;

import org.glassfish.jersey.client.ClientProperties;
import org.glassfish.jersey.client.ClientRequest;
import org.glassfish.jersey.client.RequestEntityProcessing;

import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.ProtocolException;

class HttpUrlExpect100ContinueConnectorExtension
        implements ConnectorExtension {

    private static final String EXCEPTION_MESSAGE = "Server rejected operation";

    @Override
    public  void invoke(ClientRequest request, HttpURLConnection uc) {

        final long length = request.getLengthLong();
        final RequestEntityProcessing entityProcessing = request.resolveProperty(
                ClientProperties.REQUEST_ENTITY_PROCESSING, RequestEntityProcessing.class);

        final Boolean expectContinueActivated = request.resolveProperty(
                ClientProperties.EXPECT_100_CONTINUE, Boolean.class);
        final Long expectContinueSizeThreshold = request.resolveProperty(
                ClientProperties.EXPECT_100_CONTINUE_THRESHOLD_SIZE,
                ClientProperties.DEFAULT_EXPECT_100_CONTINUE_THRESHOLD_SIZE);

        final boolean allowStreaming = length > expectContinueSizeThreshold
                || entityProcessing == RequestEntityProcessing.CHUNKED;

        if (!Boolean.TRUE.equals(expectContinueActivated)
                || !("POST".equals(uc.getRequestMethod()) || "PUT".equals(uc.getRequestMethod()))
                || !allowStreaming
        ) {
            return;
        }
        uc.setRequestProperty("Expect", "100-Continue");
    }

    @Override
    public void postConnectionProcessing(HttpURLConnection extensionParam) {
        //nothing here, we do not process post connection extension
    }

    @Override
    public boolean handleException(ClientRequest request, HttpURLConnection extensionParam, IOException ex) {

        final Boolean expectContinueActivated = request.resolveProperty(
                ClientProperties.EXPECT_100_CONTINUE, Boolean.FALSE);

        return expectContinueActivated
                && (ex instanceof ProtocolException && ex.getMessage().equals(EXCEPTION_MESSAGE));
    }

}