// 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);
}
public override GetLinkPreviewResponse CreatePreview(DataProviderInformation dataProviderInformation)
{
OEmbedInformation oembedInformation = (OEmbedInformation)dataProviderInformation;
string text = oembedInformation.Text;
OEmbedResponse oembedResponse = oembedInformation.OEmbedResponse;
LinkPreviewBuilder linkPreviewBuilder = new OEmbedVideoPreviewBuilder(this.request, text, oembedResponse, this.logger, dataProviderInformation.ResponseUri);
return(linkPreviewBuilder.Execute());
}
// Token: 0x0600194A RID: 6474 RVA: 0x00057EF4 File Offset: 0x000560F4
public override GetLinkPreviewResponse CreatePreview(DataProviderInformation dataProviderInformation)
{
string text = ((WebPageInformation)dataProviderInformation).Text;
Dictionary <string, string> queryParmDictionary;
LinkPreviewBuilder linkPreviewBuilder;
if (YouTubeLinkPreviewBuilder.TryGetYouTubePlayerQueryParms(dataProviderInformation.ResponseUri, this.logger, out queryParmDictionary))
{
linkPreviewBuilder = new YouTubeLinkPreviewBuilder(queryParmDictionary, this.request, text, this.logger, dataProviderInformation.ResponseUri);
}
else if (AmazonLinkPreviewBuilder.IsAmazonUri(dataProviderInformation.ResponseUri))
{
linkPreviewBuilder = new AmazonLinkPreviewBuilder(this.request, text, this.logger, dataProviderInformation.ResponseUri);
}
else if (CraigsListLinkPreviewBuilder.IsCraigsListUri(dataProviderInformation.ResponseUri))
{
linkPreviewBuilder = new CraigsListLinkPreviewBuilder(this.request, text, this.logger, dataProviderInformation.ResponseUri);
}
else
{
linkPreviewBuilder = new WebPageLinkPreviewBuilder(this.request, text, this.logger, dataProviderInformation.ResponseUri, false);
}
return(linkPreviewBuilder.Execute());
}
public abstract GetLinkPreviewResponse CreatePreview(DataProviderInformation dataProviderInformation);
// Token: 0x06001955 RID: 6485 RVA: 0x00058434 File Offset: 0x00056634
public override GetLinkPreviewResponse CreatePreview(DataProviderInformation dataProviderInformation)
{
LinkPreviewBuilder linkPreviewBuilder = new WikipediaLinkPreviewBuilder(this.request, ((WebPageInformation)dataProviderInformation).Text, this.logger, dataProviderInformation.ResponseUri);
return(linkPreviewBuilder.Execute());
}