public async Task InvokeAsync(HttpContext context, Adventureworks2017Context dbContext)
{
var path = context.Request.Path;
if (!path.StartsWithSegments(ImageUrl))
{
await _next(context);
}
else
{
var name = path.Value.Replace(ImageUrl + "/", "");
var isSmallImage = name.Contains("small");
var photo = isSmallImage ?
dbContext.ProductPhoto.FirstOrDefault(p => p.ThumbnailPhotoFileName == name):
dbContext.ProductPhoto.FirstOrDefault(p => p.LargePhotoFileName == name);
if (photo == null)
{
photo = dbContext.ProductPhoto.FirstOrDefault(p => p.ProductPhotoId == 1);
}
if (photo != null)
{
context.Response.OnStarting(state => {
var httpContext = (HttpContext) state;
httpContext.Response.Headers.Add("Cache-Control", "public, max-age=31536000");
return Task.FromResult(0);
}, context);
await context.Response.Body.WriteAsync(isSmallImage ? photo.ThumbNailPhoto : photo.LargePhoto);
}
else
{
await _next(context);
}
}
}
public ProductsController(Adventureworks2017Context context)
{
_context = context;
}
public PeopleController(Adventureworks2017Context context)
{
_context = context;
}
public EmployeesController(Adventureworks2017Context context)
{
_context = context;
}
public EmailAddressesController(Adventureworks2017Context context)
{
_context = context;
}
