Class HttpWebConnection

src/main/java/org/htmlunit/HttpWebConnection.java:133–1377

Default implementation of WebConnection, using the HttpClient library to perform HTTP requests. @author Mike Bowler @author Noboru Sinohara @author David D. Kilzer @author Marc Guillemot @author Brad Clarke @author Ahmed Ashour @author Nicolas Belisle @author Ronald Brill @author John J Mur

 * @author Lai Quang Duong
 */
public class HttpWebConnection implements WebConnection {

    private static final Log LOG = LogFactory.getLog(HttpWebConnection.class);

    private static final String HACKED_COOKIE_POLICY = "mine";

    // have one per thread because this is (re)configured for every call (see configureHttpProcessorBuilder)
    // do not use a ThreadLocal because this in only accessed form this class, but we still need it synchronized
    private final Map<Thread, HttpClientBuilder> httpClientBuilder_ = new WeakHashMap<>();
    private final WebClient webClient_;

    private String virtualHost_;
    private final HtmlUnitCookieSpecProvider htmlUnitCookieSpecProvider_;
    private final WebClientOptions usedOptions_;
    private PoolingHttpClientConnectionManager connectionManager_;

    /** Authentication cache shared among all threads of a web client. */
    private final AuthCache sharedAuthCache_ = new SynchronizedAuthCache();

    /** Maintains a separate {@link HttpClientContext} object per HttpWebConnection and thread. */
    private final Map<Thread, HttpClientContext> httpClientContextByThread_ = new WeakHashMap<>();

    /**
     * Creates a new HTTP web connection instance.
     * @param webClient the WebClient that is using this connection
     */
    public HttpWebConnection(final WebClient webClient) {
        super();
        webClient_ = webClient;
        htmlUnitCookieSpecProvider_ = new HtmlUnitCookieSpecProvider(webClient.getBrowserVersion());
        usedOptions_ = new WebClientOptions();
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public WebResponse getResponse(final WebRequest webRequest) throws IOException {
        final HttpClientBuilder builder = reconfigureHttpClientIfNeeded(getHttpClientBuilder(), webRequest);

        HttpUriRequest httpMethod = null;
        try {
            try {
                httpMethod = makeHttpMethod(webRequest, builder);
            }
            catch (final URISyntaxException e) {
                throw new IOException("Unable to create URI from URL: " + webRequest.getUrl().toExternalForm()
                        + " (reason: " + e.getMessage() + ")", e);
            }

            final URL url = webRequest.getUrl();
            final HttpHost httpHost = new HttpHost(url.getHost(), url.getPort(), url.getProtocol());
            final long startTime = System.currentTimeMillis();

            final HttpContext httpContext = getHttpContext();
            try {
                try (CloseableHttpClient closeableHttpClient = builder.build()) {
                    try (CloseableHttpResponse httpResponse =