/// <summary>
/// Initiates an asynchronous call to the HTTP handler.
/// </summary>
/// <param name="context">An <see cref="T:System.Web.HttpContext"></see> object that provides references to intrinsic server objects (for example, Request, Response, Session, and Server) used to service HTTP requests.</param>
/// <param name="cb">The <see cref="T:System.AsyncCallback"></see> to call when the asynchronous method call is complete. If cb is null, the delegate is not called.</param>
/// <param name="extraData">Any extra data needed to process the request.</param>
/// <returns>
/// An <see cref="T:System.IAsyncResult"></see> that contains information about the status of the process.
/// </returns>
public IAsyncResult BeginProcessRequest(HttpContext context, AsyncCallback cb, object extraData)
{
Log.Debug(typeof(ProxyHandler), "BeginProcessRequest()");
// Request URL Format: http://<load-balancer>:<port>/<tenant>/<application>
Uri requestedUrl = context.Request.Url;
Log.Debug(typeof(ProxyHandler), "Request: " + requestedUrl);
ReverseProxyContext rpContext = new ReverseProxyContext();
rpContext.RequestedHostName = requestedUrl.Host;
rpContext.RequestedPort = requestedUrl.Port;
rpContext.RequestedPathAndQuery = requestedUrl.PathAndQuery;
rpContext.TenantName = findTenantName(rpContext.RequestedPathAndQuery);
rpContext.ApplicationName = findApplicationName(rpContext.RequestedPathAndQuery);
if ((!string.IsNullOrEmpty(rpContext.TenantName)) && (!string.IsNullOrEmpty(rpContext.ApplicationName)))
{
rpContext.ApplicationInstance = LoadBalancerControllerWebUtil.GetApplicationInstance(rpContext.TenantName, rpContext.ApplicationName);
if (rpContext.ApplicationInstance != null)
{
// Asynchronously add request to the load balancer request queue
rpContext.AddReqCaller = new ASyncAddRequestToQueue(AddRequestToQueue);
addReqResult = rpContext.AddReqCaller.BeginInvoke(context, rpContext.ApplicationInstance.NodeId,
rpContext.ApplicationInstance.ApplicationId,
rpContext.ApplicationInstance.Id,
rpContext.ApplicationInstance.Tenant.Id, null, null);
}
}
delegate_ = new AsyncProcessorDelegate(ReverseProxyRequest);
return(delegate_.BeginInvoke(context, rpContext, cb, extraData));
}
public bool IsReusable => false; // httpHandler.IsReusable;
public IAsyncResult BeginProcessRequest(HttpContext context, AsyncCallback cb, object extraData)
{
if (!context.User.Identity.IsAuthenticated)
{
_Delegate = new AsyncProcessorDelegate(ProcessRequest);
return(_Delegate.BeginInvoke(context, cb, extraData));
}
return(httpHandler.BeginProcessRequest(context, cb, extraData));
}
public virtual IAsyncResult BeginProcessRequest(HttpContext context, AsyncCallback cb, object extraData)
{
Logging.Write.Info("Async call: BeginProcessRequest(), threadid=" + Thread.CurrentThread.ManagedThreadId);
_Delegate = new AsyncProcessorDelegate(ProcessRequest);
return(_Delegate.BeginInvoke(context, cb, extraData));
}
/// <summary>
/// Initiates an asynchronous call to the HTTP handler.
/// </summary>
/// <param name="context">An <see cref="T:System.Web.HttpContext"></see> object that provides references to intrinsic server objects (for example, Request, Response, Session, and Server) used to service HTTP requests.</param>
/// <param name="cb">The <see cref="T:System.AsyncCallback"></see> to call when the asynchronous method call is complete. If cb is null, the delegate is not called.</param>
/// <param name="extraData">Any extra data needed to process the request.</param>
/// <returns>
/// An <see cref="T:System.IAsyncResult"></see> that contains information about the status of the process.
/// </returns>
public IAsyncResult BeginProcessRequest(HttpContext context, AsyncCallback cb, object extraData)
{
Log.Debug(typeof(ProxyHandler), "BeginProcessRequest()");
// Request URL Format: http://<load-balancer>:<port>/<tenant>/<application>
Uri requestedUrl = context.Request.Url;
Log.Debug(typeof(ProxyHandler), "Request: " + requestedUrl);
ReverseProxyContext rpContext = new ReverseProxyContext();
rpContext.RequestedHostName = requestedUrl.Host;
rpContext.RequestedPort = requestedUrl.Port;
rpContext.RequestedPathAndQuery = requestedUrl.PathAndQuery;
rpContext.TenantName = findTenantName(rpContext.RequestedPathAndQuery);
rpContext.ApplicationName = findApplicationName(rpContext.RequestedPathAndQuery);
if ((!string.IsNullOrEmpty(rpContext.TenantName)) && (!string.IsNullOrEmpty(rpContext.ApplicationName)))
{
rpContext.ApplicationInstance = LoadBalancerControllerWebUtil.GetApplicationInstance(rpContext.TenantName, rpContext.ApplicationName);
if (rpContext.ApplicationInstance != null)
{
// Asynchronously add request to the load balancer request queue
rpContext.AddReqCaller = new ASyncAddRequestToQueue(AddRequestToQueue);
addReqResult = rpContext.AddReqCaller.BeginInvoke(context, rpContext.ApplicationInstance.NodeId,
rpContext.ApplicationInstance.ApplicationId,
rpContext.ApplicationInstance.Id,
rpContext.ApplicationInstance.Tenant.Id, null, null);
}
}
delegate_ = new AsyncProcessorDelegate(ReverseProxyRequest);
return delegate_.BeginInvoke(context, rpContext, cb, extraData);
}
