/// <exception cref="System.IO.IOException"></exception> /// <exception cref="Apache.Http.HttpException"></exception> public virtual CloseableHttpResponse Execute(HttpRoute route, HttpRequestWrapper request, HttpClientContext context, HttpExecutionAware execAware) { Args.NotNull(route, "HTTP route"); Args.NotNull(request, "HTTP request"); Args.NotNull(context, "HTTP context"); IList <URI> redirectLocations = context.GetRedirectLocations(); if (redirectLocations != null) { redirectLocations.Clear(); } RequestConfig config = context.GetRequestConfig(); int maxRedirects = config.GetMaxRedirects() > 0 ? config.GetMaxRedirects() : 50; HttpRoute currentRoute = route; HttpRequestWrapper currentRequest = request; for (int redirectCount = 0; ;) { 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++; IHttpRequest redirect = this.redirectStrategy.GetRedirect(currentRequest, response , context); if (!redirect.HeaderIterator().HasNext()) { IHttpRequest original = request.GetOriginal(); redirect.SetHeaders(original.GetAllHeaders()); } currentRequest = HttpRequestWrapper.Wrap(redirect); if (currentRequest is HttpEntityEnclosingRequest) { Proxies.EnhanceEntity((HttpEntityEnclosingRequest)currentRequest); } URI uri = currentRequest.GetURI(); 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)) { AuthState targetAuthState = context.GetTargetAuthState(); if (targetAuthState != null) { this.log.Debug("Resetting target auth state"); targetAuthState.Reset(); } AuthState proxyAuthState = context.GetProxyAuthState(); if (proxyAuthState != null) { 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 (RuntimeException ex) { response.Close(); throw; } catch (IOException ex) { response.Close(); throw; } catch (HttpException ex) { // Protocol exception related to a direct. // The underlying connection may still be salvaged. try { EntityUtils.Consume(response.GetEntity()); } catch (IOException ioex) { this.log.Debug("I/O error while releasing connection", ioex); } finally { response.Close(); } throw; } } }