Example usage for org.apache.http.client.protocol HttpClientContext getProxyAuthState

List of usage examples for org.apache.http.client.protocol HttpClientContext getProxyAuthState

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Introduction

In this page you can find the example usage for org.apache.http.client.protocol HttpClientContext getProxyAuthState.

Prototype

public AuthState getProxyAuthState()

Source Link

Usage

From source file:org.artifactory.util.ProxyPreemptiveAuthInterceptor.java

@Override
public void process(HttpRequest request, HttpContext context) throws HttpException, IOException {
    HttpClientContext clientContext = HttpClientContext.adapt(context);
    AuthState proxyAuthState = clientContext.getProxyAuthState();

    // If there's no auth scheme available yet, try to initialize it preemptively
    if (proxyAuthState.getAuthScheme() == null) {
        CredentialsProvider credsProvider = clientContext.getCredentialsProvider();
        RouteInfo route = clientContext.getHttpRoute();
        if (route == null) {
            log.debug("No route found for {}", clientContext.getTargetHost());
            return;
        }//from  w  ww.  j a v a2s  .c  o m

        HttpHost proxyHost = route.getProxyHost();
        if (proxyHost == null) {
            log.warn("No proxy host found in route {} for host {}", route, clientContext.getTargetHost());
            return;
        }

        Credentials creds = credsProvider
                .getCredentials(new AuthScope(proxyHost.getHostName(), proxyHost.getPort()));
        if (creds == null) {
            log.info("No credentials found for proxy: " + proxyHost);
            return;
        }
        proxyAuthState.update(new BasicScheme(ChallengeState.PROXY), creds);
    }
}

From source file:org.apache.http.client.protocol.RequestAuthCache.java

public void process(final HttpRequest request, final HttpContext context) throws HttpException, IOException {
    Args.notNull(request, "HTTP request");
    Args.notNull(context, "HTTP context");

    final HttpClientContext clientContext = HttpClientContext.adapt(context);

    final AuthCache authCache = clientContext.getAuthCache();
    if (authCache == null) {
        this.log.debug("Auth cache not set in the context");
        return;/*from w w w  .  ja  v a2s.  c  o m*/
    }

    final CredentialsProvider credsProvider = clientContext.getCredentialsProvider();
    if (credsProvider == null) {
        this.log.debug("Credentials provider not set in the context");
        return;
    }

    final RouteInfo route = clientContext.getHttpRoute();
    HttpHost target = clientContext.getTargetHost();
    if (target.getPort() < 0) {
        target = new HttpHost(target.getHostName(), route.getTargetHost().getPort(), target.getSchemeName());
    }

    final AuthState targetState = clientContext.getTargetAuthState();
    if (targetState != null && targetState.getState() == AuthProtocolState.UNCHALLENGED) {
        final AuthScheme authScheme = authCache.get(target);
        if (authScheme != null) {
            doPreemptiveAuth(target, authScheme, targetState, credsProvider);
        }
    }

    final HttpHost proxy = route.getProxyHost();
    final AuthState proxyState = clientContext.getProxyAuthState();
    if (proxy != null && proxyState != null && proxyState.getState() == AuthProtocolState.UNCHALLENGED) {
        final AuthScheme authScheme = authCache.get(proxy);
        if (authScheme != null) {
            doPreemptiveAuth(proxy, authScheme, proxyState, credsProvider);
        }
    }
}

From source file:org.apache.http.impl.execchain.MainClientExec.java

public CloseableHttpResponse execute(final HttpRoute route, final HttpRequestWrapper request,
        final HttpClientContext context, final HttpExecutionAware execAware) throws IOException, HttpException {
    Args.notNull(route, "HTTP route");
    Args.notNull(request, "HTTP request");
    Args.notNull(context, "HTTP context");

    AuthState targetAuthState = context.getTargetAuthState();
    if (targetAuthState == null) {
        targetAuthState = new AuthState();
        context.setAttribute(HttpClientContext.TARGET_AUTH_STATE, targetAuthState);
    }//from w w w.ja v  a  2  s . c  om
    AuthState proxyAuthState = context.getProxyAuthState();
    if (proxyAuthState == null) {
        proxyAuthState = new AuthState();
        context.setAttribute(HttpClientContext.PROXY_AUTH_STATE, proxyAuthState);
    }

    if (request instanceof HttpEntityEnclosingRequest) {
        Proxies.enhanceEntity((HttpEntityEnclosingRequest) request);
    }

    Object userToken = context.getUserToken();

    final ConnectionRequest connRequest = connManager.requestConnection(route, userToken);
    if (execAware != null) {
        if (execAware.isAborted()) {
            connRequest.cancel();
            throw new RequestAbortedException("Request aborted");
        } else {
            execAware.setCancellable(connRequest);
        }
    }

    final RequestConfig config = context.getRequestConfig();

    final HttpClientConnection managedConn;
    try {
        final int timeout = config.getConnectionRequestTimeout();
        managedConn = connRequest.get(timeout > 0 ? timeout : 0, TimeUnit.MILLISECONDS);
    } catch (final InterruptedException interrupted) {
        Thread.currentThread().interrupt();
        throw new RequestAbortedException("Request aborted", interrupted);
    } catch (final ExecutionException ex) {
        Throwable cause = ex.getCause();
        if (cause == null) {
            cause = ex;
        }
        throw new RequestAbortedException("Request execution failed", cause);
    }

    context.setAttribute(HttpCoreContext.HTTP_CONNECTION, managedConn);

    if (config.isStaleConnectionCheckEnabled()) {
        // validate connection
        if (managedConn.isOpen()) {
            this.log.debug("Stale connection check");
            if (managedConn.isStale()) {
                this.log.debug("Stale connection detected");
                managedConn.close();
            }
        }
    }

    final ConnectionHolder connHolder = new ConnectionHolder(this.log, this.connManager, managedConn);
    try {
        if (execAware != null) {
            execAware.setCancellable(connHolder);
        }

        HttpResponse response;
        for (int execCount = 1;; execCount++) {

            if (execCount > 1 && !Proxies.isRepeatable(request)) {
                throw new NonRepeatableRequestException(
                        "Cannot retry request " + "with a non-repeatable request entity.");
            }

            if (execAware != null && execAware.isAborted()) {
                throw new RequestAbortedException("Request aborted");
            }

            if (!managedConn.isOpen()) {
                this.log.debug("Opening connection " + route);
                try {
                    establishRoute(proxyAuthState, managedConn, route, request, context);
                } catch (final TunnelRefusedException ex) {
                    if (this.log.isDebugEnabled()) {
                        this.log.debug(ex.getMessage());
                    }
                    response = ex.getResponse();
                    break;
                }
            }
            final int timeout = config.getSocketTimeout();
            if (timeout >= 0) {
                managedConn.setSocketTimeout(timeout);
            }

            if (execAware != null && execAware.isAborted()) {
                throw new RequestAbortedException("Request aborted");
            }

            if (this.log.isDebugEnabled()) {
                this.log.debug("Executing request " + request.getRequestLine());
            }

            if (!request.containsHeader(AUTH.WWW_AUTH_RESP)) {
                if (this.log.isDebugEnabled()) {
                    this.log.debug("Target auth state: " + targetAuthState.getState());
                }
                this.authenticator.generateAuthResponse(request, targetAuthState, context);
            }
            if (!request.containsHeader(AUTH.PROXY_AUTH_RESP) && !route.isTunnelled()) {
                if (this.log.isDebugEnabled()) {
                    this.log.debug("Proxy auth state: " + proxyAuthState.getState());
                }
                this.authenticator.generateAuthResponse(request, proxyAuthState, context);
            }

            response = requestExecutor.execute(request, managedConn, context);

            // The connection is in or can be brought to a re-usable state.
            if (reuseStrategy.keepAlive(response, context)) {
                // Set the idle duration of this connection
                final long duration = keepAliveStrategy.getKeepAliveDuration(response, context);
                if (this.log.isDebugEnabled()) {
                    final String s;
                    if (duration > 0) {
                        s = "for " + duration + " " + TimeUnit.MILLISECONDS;
                    } else {
                        s = "indefinitely";
                    }
                    this.log.debug("Connection can be kept alive " + s);
                }
                connHolder.setValidFor(duration, TimeUnit.MILLISECONDS);
                connHolder.markReusable();
            } else {
                connHolder.markNonReusable();
            }

            if (needAuthentication(targetAuthState, proxyAuthState, route, response, context)) {
                // Make sure the response body is fully consumed, if present
                final HttpEntity entity = response.getEntity();
                if (connHolder.isReusable()) {
                    EntityUtils.consume(entity);
                } else {
                    managedConn.close();
                    if (proxyAuthState.getState() == AuthProtocolState.SUCCESS
                            && proxyAuthState.getAuthScheme() != null
                            && proxyAuthState.getAuthScheme().isConnectionBased()) {
                        this.log.debug("Resetting proxy auth state");
                        proxyAuthState.reset();
                    }
                    if (targetAuthState.getState() == AuthProtocolState.SUCCESS
                            && targetAuthState.getAuthScheme() != null
                            && targetAuthState.getAuthScheme().isConnectionBased()) {
                        this.log.debug("Resetting target auth state");
                        targetAuthState.reset();
                    }
                }
                // discard previous auth headers
                final HttpRequest original = request.getOriginal();
                if (!original.containsHeader(AUTH.WWW_AUTH_RESP)) {
                    request.removeHeaders(AUTH.WWW_AUTH_RESP);
                }
                if (!original.containsHeader(AUTH.PROXY_AUTH_RESP)) {
                    request.removeHeaders(AUTH.PROXY_AUTH_RESP);
                }
            } else {
                break;
            }
        }

        if (userToken == null) {
            userToken = userTokenHandler.getUserToken(context);
            context.setAttribute(HttpClientContext.USER_TOKEN, userToken);
        }
        if (userToken != null) {
            connHolder.setState(userToken);
        }

        // check for entity, release connection if possible
        final HttpEntity entity = response.getEntity();
        if (entity == null || !entity.isStreaming()) {
            // connection not needed and (assumed to be) in re-usable state
            connHolder.releaseConnection();
            return Proxies.enhanceResponse(response, null);
        } else {
            return Proxies.enhanceResponse(response, connHolder);
        }
    } catch (final ConnectionShutdownException ex) {
        final InterruptedIOException ioex = new InterruptedIOException("Connection has been shut down");
        ioex.initCause(ex);
        throw ioex;
    } catch (final HttpException ex) {
        connHolder.abortConnection();
        throw ex;
    } catch (final IOException ex) {
        connHolder.abortConnection();
        throw ex;
    } catch (final RuntimeException ex) {
        connHolder.abortConnection();
        throw ex;
    }
}

From source file:org.apache.http.impl.execchain.RedirectExec.java

public CloseableHttpResponse execute(final HttpRoute route, final HttpRequestWrapper request,
        final HttpClientContext context, final HttpExecutionAware execAware) throws IOException, HttpException {
    Args.notNull(route, "HTTP route");
    Args.notNull(request, "HTTP request");
    Args.notNull(context, "HTTP context");

    final List<URI> redirectLocations = context.getRedirectLocations();
    if (redirectLocations != null) {
        redirectLocations.clear();/*from  w ww. j a  v  a 2 s .c om*/
    }

    final RequestConfig config = context.getRequestConfig();
    final int maxRedirects = config.getMaxRedirects() > 0 ? config.getMaxRedirects() : 50;
    HttpRoute currentRoute = route;
    HttpRequestWrapper currentRequest = request;
    for (int redirectCount = 0;;) {
        final CloseableHttpResponse response = requestExecutor.execute(currentRoute, currentRequest, context,
                execAware);
        try {
            if (config.isRedirectsEnabled()
                    && this.redirectStrategy.isRedirected(currentRequest, response, context)) {

                if (redirectCount >= maxRedirects) {
                    throw new RedirectException("Maximum redirects (" + maxRedirects + ") exceeded");
                }
                redirectCount++;

                final HttpRequest redirect = this.redirectStrategy.getRedirect(currentRequest, response,
                        context);
                if (!redirect.headerIterator().hasNext()) {
                    final HttpRequest original = request.getOriginal();
                    redirect.setHeaders(original.getAllHeaders());
                }
                currentRequest = HttpRequestWrapper.wrap(redirect);

                if (currentRequest instanceof HttpEntityEnclosingRequest) {
                    Proxies.enhanceEntity((HttpEntityEnclosingRequest) currentRequest);
                }

                final URI uri = currentRequest.getURI();
                final HttpHost newTarget = URIUtils.extractHost(uri);
                if (newTarget == null) {
                    throw new ProtocolException("Redirect URI does not specify a valid host name: " + uri);
                }

                // Reset virtual host and auth states if redirecting to another host
                if (!currentRoute.getTargetHost().equals(newTarget)) {
                    final AuthState targetAuthState = context.getTargetAuthState();
                    if (targetAuthState != null) {
                        this.log.debug("Resetting target auth state");
                        targetAuthState.reset();
                    }
                    final AuthState proxyAuthState = context.getProxyAuthState();
                    if (proxyAuthState != null) {
                        final AuthScheme authScheme = proxyAuthState.getAuthScheme();
                        if (authScheme != null && authScheme.isConnectionBased()) {
                            this.log.debug("Resetting proxy auth state");
                            proxyAuthState.reset();
                        }
                    }
                }

                currentRoute = this.routePlanner.determineRoute(newTarget, currentRequest, context);
                if (this.log.isDebugEnabled()) {
                    this.log.debug("Redirecting to '" + uri + "' via " + currentRoute);
                }
                EntityUtils.consume(response.getEntity());
                response.close();
            } else {
                return response;
            }
        } catch (final RuntimeException ex) {
            response.close();
            throw ex;
        } catch (final IOException ex) {
            response.close();
            throw ex;
        } catch (final HttpException ex) {
            // Protocol exception related to a direct.
            // The underlying connection may still be salvaged.
            try {
                EntityUtils.consume(response.getEntity());
            } catch (final IOException ioex) {
                this.log.debug("I/O error while releasing connection", ioex);
            } finally {
                response.close();
            }
            throw ex;
        }
    }
}

From source file:org.apache.http.impl.nio.client.MainClientExec.java

@Override
public HttpRequest generateRequest(final InternalState state, final AbstractClientExchangeHandler<?> handler)
        throws IOException, HttpException {

    final HttpRoute route = handler.getRoute();

    handler.verifytRoute();/*from  w w  w  .  j  ava 2  s. c  o  m*/

    if (!handler.isRouteEstablished()) {
        int step;
        loop: do {
            final HttpRoute fact = handler.getActualRoute();
            step = this.routeDirector.nextStep(route, fact);
            switch (step) {
            case HttpRouteDirector.CONNECT_TARGET:
                handler.onRouteToTarget();
                break;
            case HttpRouteDirector.CONNECT_PROXY:
                handler.onRouteToProxy();
                break;
            case HttpRouteDirector.TUNNEL_TARGET:
                if (this.log.isDebugEnabled()) {
                    this.log.debug("[exchange: " + state.getId() + "] Tunnel required");
                }
                final HttpRequest connect = createConnectRequest(route, state);
                handler.setCurrentRequest(HttpRequestWrapper.wrap(connect));
                break loop;
            case HttpRouteDirector.TUNNEL_PROXY:
                throw new HttpException("Proxy chains are not supported");
            case HttpRouteDirector.LAYER_PROTOCOL:
                handler.onRouteUpgrade();
                break;
            case HttpRouteDirector.UNREACHABLE:
                throw new HttpException(
                        "Unable to establish route: " + "planned = " + route + "; current = " + fact);
            case HttpRouteDirector.COMPLETE:
                handler.onRouteComplete();
                this.log.debug("Connection route established");
                break;
            default:
                throw new IllegalStateException("Unknown step indicator " + step + " from RouteDirector.");
            }
        } while (step > HttpRouteDirector.COMPLETE);
    }

    final HttpClientContext localContext = state.getLocalContext();
    HttpRequestWrapper currentRequest = handler.getCurrentRequest();
    if (currentRequest == null) {
        currentRequest = state.getMainRequest();
        handler.setCurrentRequest(currentRequest);
    }

    if (handler.isRouteEstablished()) {
        state.incrementExecCount();
        if (state.getExecCount() > 1) {
            final HttpAsyncRequestProducer requestProducer = state.getRequestProducer();
            if (!requestProducer.isRepeatable() && state.isRequestContentProduced()) {
                throw new NonRepeatableRequestException(
                        "Cannot retry request " + "with a non-repeatable request entity.");
            }
            requestProducer.resetRequest();
        }
        if (this.log.isDebugEnabled()) {
            this.log.debug("[exchange: " + state.getId() + "] Attempt " + state.getExecCount()
                    + " to execute request");
        }

        if (!currentRequest.containsHeader(AUTH.WWW_AUTH_RESP)) {
            final AuthState targetAuthState = localContext.getTargetAuthState();
            if (this.log.isDebugEnabled()) {
                this.log.debug("Target auth state: " + targetAuthState.getState());
            }
            this.authenticator.generateAuthResponse(currentRequest, targetAuthState, localContext);
        }
        if (!currentRequest.containsHeader(AUTH.PROXY_AUTH_RESP) && !route.isTunnelled()) {
            final AuthState proxyAuthState = localContext.getProxyAuthState();
            if (this.log.isDebugEnabled()) {
                this.log.debug("Proxy auth state: " + proxyAuthState.getState());
            }
            this.authenticator.generateAuthResponse(currentRequest, proxyAuthState, localContext);
        }
    } else {
        if (!currentRequest.containsHeader(AUTH.PROXY_AUTH_RESP)) {
            final AuthState proxyAuthState = localContext.getProxyAuthState();
            if (this.log.isDebugEnabled()) {
                this.log.debug("Proxy auth state: " + proxyAuthState.getState());
            }
            this.authenticator.generateAuthResponse(currentRequest, proxyAuthState, localContext);
        }
    }

    final NHttpClientConnection managedConn = handler.getConnection();
    localContext.setAttribute(HttpCoreContext.HTTP_CONNECTION, managedConn);
    final RequestConfig config = localContext.getRequestConfig();
    if (config.getSocketTimeout() > 0) {
        managedConn.setSocketTimeout(config.getSocketTimeout());
    }
    return currentRequest;
}

From source file:org.apache.http.impl.nio.client.MainClientExec.java

@Override
public void responseCompleted(final InternalState state, final AbstractClientExchangeHandler<?> handler)
        throws IOException, HttpException {
    final HttpClientContext localContext = state.getLocalContext();
    final HttpResponse currentResponse = handler.getCurrentResponse();

    if (!handler.isRouteEstablished()) {
        final int status = currentResponse.getStatusLine().getStatusCode();
        if (status == HttpStatus.SC_OK) {
            handler.setCurrentResponse(null);
            return;
        }// w ww .j a v a 2  s.c  o  m
    }

    final boolean keepAlive = handler.manageConnectionPersistence();
    if (!keepAlive) {
        handler.releaseConnection();
        final AuthState proxyAuthState = localContext.getProxyAuthState();
        if (proxyAuthState.getState() == AuthProtocolState.SUCCESS && proxyAuthState.getAuthScheme() != null
                && proxyAuthState.getAuthScheme().isConnectionBased()) {
            if (this.log.isDebugEnabled()) {
                this.log.debug("[exchange: " + state.getId() + "] Resetting proxy auth state");
            }
            proxyAuthState.reset();
        }
        final AuthState targetAuthState = localContext.getTargetAuthState();
        if (targetAuthState.getState() == AuthProtocolState.SUCCESS && targetAuthState.getAuthScheme() != null
                && targetAuthState.getAuthScheme().isConnectionBased()) {
            if (this.log.isDebugEnabled()) {
                this.log.debug("[exchange: " + state.getId() + "] Resetting target auth state");
            }
            targetAuthState.reset();
        }
    }

    Object userToken = localContext.getUserToken();
    if (userToken == null) {
        userToken = this.userTokenHandler.getUserToken(localContext);
        localContext.setAttribute(HttpClientContext.USER_TOKEN, userToken);
    }

    if (state.getFinalResponse() != null) {
        final HttpAsyncResponseConsumer<?> responseConsumer = state.getResponseConsumer();
        responseConsumer.responseCompleted(localContext);
        if (this.log.isDebugEnabled()) {
            this.log.debug("[exchange: " + state.getId() + "] Response processed");
        }
        handler.releaseConnection();
    } else {
        if (state.getRedirect() != null) {
            final HttpUriRequest redirect = state.getRedirect();
            final URI uri = redirect.getURI();
            if (this.log.isDebugEnabled()) {
                this.log.debug("[exchange: " + state.getId() + "] Redirecting to '" + uri + "'");
            }
            state.setRedirect(null);

            final HttpHost newTarget = URIUtils.extractHost(uri);
            if (newTarget == null) {
                throw new ProtocolException("Redirect URI does not specify a valid host name: " + uri);
            }

            // Reset auth states if redirecting to another host
            final HttpRoute route = handler.getRoute();
            if (!route.getTargetHost().equals(newTarget)) {
                final AuthState targetAuthState = localContext.getTargetAuthState();
                if (this.log.isDebugEnabled()) {
                    this.log.debug("[exchange: " + state.getId() + "] Resetting target auth state");
                }
                targetAuthState.reset();
                final AuthState proxyAuthState = localContext.getProxyAuthState();
                final AuthScheme authScheme = proxyAuthState.getAuthScheme();
                if (authScheme != null && authScheme.isConnectionBased()) {
                    if (this.log.isDebugEnabled()) {
                        this.log.debug("[exchange: " + state.getId() + "] Resetting proxy auth state");
                    }
                    proxyAuthState.reset();
                }
            }

            if (!redirect.headerIterator().hasNext()) {
                final HttpRequest original = state.getMainRequest().getOriginal();
                redirect.setHeaders(original.getAllHeaders());
            }

            final HttpRequestWrapper newRequest = HttpRequestWrapper.wrap(redirect);
            final HttpRoute newRoute = this.routePlanner.determineRoute(newTarget, newRequest, localContext);
            if (!route.equals(newRoute)) {
                handler.releaseConnection();
            }
            handler.setRoute(newRoute);
            handler.setCurrentRequest(newRequest);
            state.setMainRequest(newRequest);
            prepareRequest(state, handler);
        }
    }
    handler.setCurrentResponse(null);
}

From source file:org.apache.http.impl.nio.client.MainClientExec.java

private boolean handleConnectResponse(final InternalState state, final AbstractClientExchangeHandler<?> handler)
        throws HttpException {
    final HttpClientContext localContext = state.getLocalContext();
    final RequestConfig config = localContext.getRequestConfig();
    if (config.isAuthenticationEnabled()) {
        final CredentialsProvider credsProvider = localContext.getCredentialsProvider();
        if (credsProvider != null) {
            final HttpRoute route = handler.getRoute();
            final HttpHost proxy = route.getProxyHost();
            final HttpResponse currentResponse = handler.getCurrentResponse();
            final AuthState proxyAuthState = localContext.getProxyAuthState();
            if (this.authenticator.isAuthenticationRequested(proxy, currentResponse, this.proxyAuthStrategy,
                    proxyAuthState, localContext)) {
                return this.authenticator.handleAuthChallenge(proxy, currentResponse, this.proxyAuthStrategy,
                        proxyAuthState, localContext);
            }//www .  ja va2s. c  o m
        }
    }
    return false;
}

From source file:org.apache.http.impl.nio.client.MainClientExec.java

private boolean needAuthentication(final InternalState state, final AbstractClientExchangeHandler<?> handler)
        throws HttpException {
    final HttpClientContext localContext = state.getLocalContext();
    final CredentialsProvider credsProvider = localContext.getCredentialsProvider();
    if (credsProvider != null) {
        final HttpRoute route = handler.getRoute();
        final HttpResponse currentResponse = handler.getCurrentResponse();
        HttpHost target = localContext.getTargetHost();
        if (target == null) {
            target = route.getTargetHost();
        }/*from w  w w.  j  a  v  a2  s  . c  o  m*/
        if (target.getPort() < 0) {
            target = new HttpHost(target.getHostName(), route.getTargetHost().getPort(),
                    target.getSchemeName());
        }
        final AuthState targetAuthState = localContext.getTargetAuthState();
        final AuthState proxyAuthState = localContext.getProxyAuthState();

        final boolean targetAuthRequested = this.authenticator.isAuthenticationRequested(target,
                currentResponse, this.targetAuthStrategy, targetAuthState, localContext);

        HttpHost proxy = route.getProxyHost();
        // if proxy is not set use target host instead
        if (proxy == null) {
            proxy = route.getTargetHost();
        }
        final boolean proxyAuthRequested = this.authenticator.isAuthenticationRequested(proxy, currentResponse,
                this.proxyAuthStrategy, proxyAuthState, localContext);

        if (targetAuthRequested) {
            return this.authenticator.handleAuthChallenge(target, currentResponse, this.targetAuthStrategy,
                    targetAuthState, localContext);
        }
        if (proxyAuthRequested) {
            return this.authenticator.handleAuthChallenge(proxy, currentResponse, this.proxyAuthStrategy,
                    proxyAuthState, localContext);
        }
    }
    return false;
}