private ResponseContainer IssueRequestInternal(HttpRequestMessage request, bool save = true)
{
if (save && _retry == 0)
{
_original = CloneHttpRequestMessage(request);
}
try
{
HttpResponseMessage response = _httpClient.SendAsync(request).Sync();
LastRequestUtc = DateTime.UtcNow;
ResponseContainer result = new ResponseContainer(request, _original, response);
_retry = 0;
return(result);
}
catch (HttpRequestException ex)
{
if (_retry++ < 3)
{
Console.WriteLine($"[!!!] Proxy request failed: {ex.Message}, retrying...");
return(IssueRequestInternal(CloneHttpRequestMessage(_original), false));
}
else
{
throw ex.InnerException;
}
}
}
private ResponseContainer IssueRequestInternal(HttpRequestMessage request)
{
HttpResponseMessage response = _httpClient.SendAsync(request).Sync();
LastRequestUtc = DateTime.UtcNow;
ResponseContainer result = new ResponseContainer(request, response);
return(result);
}
protected virtual void PostRequest(ResponseContainer response)
{
}
public ResponseContainer IssueRequest(HttpRequestMessage request)
{
using (EnterExclusive())
{
ResponseContainer result = IssueRequestInternal(request);
// Check interventions
foreach (IInterventionHandler handler in _interventionHandlers)
{
if (handler.DoIntervention(result))
{
// Woops, intervention needs to be handled
InterventionResult interventionResult = handler.Handle(result);
if (interventionResult.IntermediateTask != null)
{
// Process intermediate request
// TODO: Should we recurse?
IssueRequestInternal(request);
}
switch (interventionResult.State)
{
case InterventionResultState.Abort:
throw new Exception("Unable to process request");
case InterventionResultState.RetryCurrentTask:
// Retry same request
IssueRequest(request);
break;
case InterventionResultState.Continue:
break;
default:
throw new ArgumentOutOfRangeException();
}
}
}
// Process all parsers
foreach (BaseParser parser in _parsers)
{
if (!parser.ShouldProcess(result))
{
continue;
}
foreach (DataObject dataObject in parser.Process(this, result))
{
result.ParsedObjects.Add(dataObject);
}
}
// Call childs custom logic
PostRequest(result);
// Return
return(result);
}
}
public virtual string Inject(string body, ResponseContainer container, string host, int port)
{
return(body);
}