public static Bitmap DownloadImageCached(string url) => DownloadImageCachedWithExpiry(url, TimeSpan.FromDays(1000)); // image in cache is good forever.
public static Bitmap DownloadImageCachedWithExpiry(string url, TimeSpan rotTime)
{
var fn = WebScraper.GetCachedFileNameFromUrl(url);
if (File.Exists(fn) && File.GetLastWriteTime(fn).Add(rotTime) > DateTime.Now)
{
try
{
Debug.Write("c");
return(new Bitmap(fn));
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message + " - " + url, MethodInfo.GetCurrentMethod()?.DeclaringType.Name + "." + MethodInfo.GetCurrentMethod()?.Name);
File.Delete(fn); // delete corrupt images
}
Debug.Write("?");
return(new Bitmap(5, 5));
}
else
{
Debug.Write("n");
return(SaveWebImageToFile(url, fn));
}
}
