// Token: 0x060018EB RID: 6379 RVA: 0x0005698C File Offset: 0x00054B8C
protected override async Task <GetLinkPreviewResponse> InternalExecute()
{
GetLinkPreviewResponse getLinkPreviewResponse;
try
{
DataProviderInformation dataProviderInformation = null;
long elapsedTimeToWebPageStepCompletion = 0L;
long elapsedTimeToRegExStepCompletion = 0L;
base.CallContext.ProtocolLog.Set(GetLinkPreviewMetadata.Url, this.request.Url);
if (GetLinkPreview.GetPreviewsDisabled())
{
return(this.CreateDisabledResponse());
}
if (Interlocked.Increment(ref GetLinkPreview.getPreviewRequestCount) > GetLinkPreview.getPreviewRequestCountMax)
{
return(this.CreateErrorResponse("MaxConcurrentRequestExceeded", "The maximum number of concurrent requests has been exceeded."));
}
bool activeViewConvergenceEnabled = GetLinkPreview.GetActiveViewsConvergenceFlightEnabled(base.CallContext.ProtocolLog);
Stopwatch stopwatch = Stopwatch.StartNew();
LinkPreviewDataProvider dataProvider = null;
dataProvider = LinkPreviewDataProvider.GetDataProvider(this.request, base.CallContext.ProtocolLog, activeViewConvergenceEnabled);
dataProviderInformation = await dataProvider.GetDataProviderInformation();
elapsedTimeToWebPageStepCompletion = stopwatch.ElapsedMilliseconds;
getLinkPreviewResponse = dataProvider.CreatePreview(dataProviderInformation);
stopwatch.Stop();
elapsedTimeToRegExStepCompletion = stopwatch.ElapsedMilliseconds;
getLinkPreviewResponse.ElapsedTimeToWebPageStepCompletion = elapsedTimeToWebPageStepCompletion;
getLinkPreviewResponse.ElapsedTimeToRegExStepCompletion = elapsedTimeToRegExStepCompletion;
getLinkPreviewResponse.WebPageContentLength = dataProvider.ContentLength;
this.LogWebMethodData(getLinkPreviewResponse);
}
catch (OwaPermanentException exception)
{
getLinkPreviewResponse = this.CreateErrorResponse(exception);
}
catch (LocalizedException exception2)
{
getLinkPreviewResponse = this.CreateErrorResponse(exception2);
}
catch (HttpRequestException requestException)
{
getLinkPreviewResponse = this.CreateErrorResponse(requestException);
}
catch (TaskCanceledException)
{
getLinkPreviewResponse = this.CreateErrorResponse("RequestTimeout", "The web page request timed out.");
}
catch (WebException webException)
{
getLinkPreviewResponse = this.CreateErrorResponse(webException);
}
finally
{
Interlocked.Decrement(ref GetLinkPreview.getPreviewRequestCount);
}
return(getLinkPreviewResponse);
}
