public virtual void SetCredentials(AuthScope authscope, Credentials credentials)
{
@internal.SetCredentials(authscope, credentials);
}
/// <exception cref="System.IO.IOException"></exception>
/// <exception cref="Apache.Http.HttpException"></exception>
public virtual Socket Tunnel(HttpHost proxy, HttpHost target, Credentials credentials
)
{
Args.NotNull(proxy, "Proxy host");
Args.NotNull(target, "Target host");
Args.NotNull(credentials, "Credentials");
HttpHost host = target;
if (host.GetPort() <= 0)
{
host = new HttpHost(host.GetHostName(), 80, host.GetSchemeName());
}
HttpRoute route = new HttpRoute(host, this.requestConfig.GetLocalAddress(), proxy
, false, RouteInfo.TunnelType.Tunnelled, RouteInfo.LayerType.Plain);
ManagedHttpClientConnection conn = this.connFactory.Create(route, this.connectionConfig
);
HttpContext context = new BasicHttpContext();
HttpResponse response;
IHttpRequest connect = new BasicHttpRequest("CONNECT", host.ToHostString(), HttpVersion
.Http11);
BasicCredentialsProvider credsProvider = new BasicCredentialsProvider();
credsProvider.SetCredentials(new AuthScope(proxy), credentials);
// Populate the execution context
context.SetAttribute(HttpCoreContext.HttpTargetHost, target);
context.SetAttribute(HttpCoreContext.HttpConnection, conn);
context.SetAttribute(HttpCoreContext.HttpRequest, connect);
context.SetAttribute(HttpClientContext.HttpRoute, route);
context.SetAttribute(HttpClientContext.ProxyAuthState, this.proxyAuthState);
context.SetAttribute(HttpClientContext.CredsProvider, credsProvider);
context.SetAttribute(HttpClientContext.AuthschemeRegistry, this.authSchemeRegistry
);
context.SetAttribute(HttpClientContext.RequestConfig, this.requestConfig);
this.requestExec.PreProcess(connect, this.httpProcessor, context);
for (; ;)
{
if (!conn.IsOpen())
{
Socket socket = Sharpen.Extensions.CreateSocket(proxy.GetHostName(), proxy.GetPort
());
conn.Bind(socket);
}
this.authenticator.GenerateAuthResponse(connect, this.proxyAuthState, context);
response = this.requestExec.Execute(connect, conn, context);
int status = response.GetStatusLine().GetStatusCode();
if (status < 200)
{
throw new HttpException("Unexpected response to CONNECT request: " + response.GetStatusLine
());
}
if (this.authenticator.IsAuthenticationRequested(proxy, response, this.proxyAuthStrategy
, this.proxyAuthState, context))
{
if (this.authenticator.HandleAuthChallenge(proxy, response, this.proxyAuthStrategy
, this.proxyAuthState, context))
{
// Retry request
if (this.reuseStrategy.KeepAlive(response, context))
{
// Consume response content
HttpEntity entity = response.GetEntity();
EntityUtils.Consume(entity);
}
else
{
conn.Close();
}
// discard previous auth header
connect.RemoveHeaders(AUTH.ProxyAuthResp);
}
else
{
break;
}
}
else
{
break;
}
}
int status_1 = response.GetStatusLine().GetStatusCode();
if (status_1 > 299)
{
// Buffer response content
HttpEntity entity = response.GetEntity();
if (entity != null)
{
response.SetEntity(new BufferedHttpEntity(entity));
}
conn.Close();
throw new TunnelRefusedException("CONNECT refused by proxy: " + response.GetStatusLine
(), response);
}
return(conn.GetSocket());
}