public ICorsPolicyProvider GetCorsPolicyProvider(HttpRequestMessage request)
{
ICorsPolicyProvider policyProvider = null;
_traceWriter.TraceBeginEnd(
request,
TraceCategories.CorsCategory,
TraceLevel.Info,
_innerPolicyProviderFactory.GetType().Name,
MethodName,
beginTrace: (tr) =>
{
tr.Message = String.Format(CultureInfo.CurrentCulture, SRResources.TraceCorsRequestContext, request.GetCorsRequestContext());
},
execute: () => { policyProvider = _innerPolicyProviderFactory.GetCorsPolicyProvider(request); },
endTrace: (tr) =>
{
if (policyProvider != null)
{
tr.Message = String.Format(CultureInfo.CurrentCulture, SRResources.TraceEndPolicyProviderReturned, policyProvider);
}
else
{
tr.Message = SRResources.TraceEndNoPolicyProviderReturned;
}
},
errorTrace: null);
if (policyProvider != null)
{
return(new CorsPolicyProviderTracer(policyProvider, _traceWriter));
}
return(null);
}
private async Task <CorsPolicy> GetCorsPolicyAsync(HttpRequestMessage request, CancellationToken cancellationToken)
{
CorsPolicy corsPolicy = null;
ICorsPolicyProviderFactory corsPolicyProviderFactory = _httpConfiguration.GetCorsPolicyProviderFactory();
ICorsPolicyProvider corsPolicyProvider = corsPolicyProviderFactory.GetCorsPolicyProvider(request);
if (corsPolicyProvider != null)
{
corsPolicy = await corsPolicyProvider.GetCorsPolicyAsync(request, cancellationToken);
}
return(corsPolicy);
}