public IFileInfo LoadThumbnail(string hash, string mime)
{
if (hash == null)
{
throw new ArgumentNullException(nameof(hash));
}
if (mime == null)
{
throw new ArgumentNullException(nameof(mime));
}
IFileInfo source = this.GetThumbnailFileInfo(hash);
if (!source.Exists)
{
if (mime.StartsWith("image/", StringComparison.InvariantCultureIgnoreCase))
{
IFileInfo originalImage = this.GetFileInfo(hash);
Thumbnail.Create(new Uri(originalImage.FullName), mime, 256, source);
// if the thumbnail was not created for some reason...
if (!source.Exists)
{
source = null;
}
}
else
{
source = null;
}
}
return(source);
}
public FileInfo LoadThumbnail(String hash, String mime)
{
FileInfo source = GetThumbnailFileInfo(hash);
if (!source.Exists)
{
if (mime.StartsWith("image/"))
{
FileInfo originalImage = GetFileInfo(hash);
Thumbnail.Create(new Uri(originalImage.FullName), mime, 256, source);
// if the thumbnail was not created for some reason...
if (!source.Exists)
{
source = null;
}
}
else
{
source = null;
}
}
return(source);
}
/// <summary>
/// Método responsável por tratar a requisição para "{imagem}.thumb.axd"
/// </summary>
/// <param name="context">Contexto da requisição</param>
public void ProcessRequest(HttpContext context)
{
//var configuration = ConfigManager.GetConfig();
var refpoint = Enumerators.ReferencePoint.MiddleCenter;
var crop = false;
var width = 100; // configuration.Thumb.DefaultWidth;
var height = 100; // configuration.Thumb.DefaultHeight;
if (context.Request["refpoint"] != null)
{
Enum.TryParse(context.Request["refpoint"], out refpoint);
}
if (context.Request["crop"] != null)
{
bool.TryParse(context.Request["crop"], out crop);
}
if (context.Request["width"] != null)
{
int.TryParse(context.Request["width"], out width);
}
if (context.Request["height"] != null)
{
int.TryParse(context.Request["height"], out height);
}
var filePath = CleanFilePath(context.Request.FilePath);
if (string.IsNullOrWhiteSpace(filePath))
{
filePath = "not-found.jpg";//configuration.Thumb.NotFoundPath;
}
if (!string.IsNullOrWhiteSpace(filePath))
{
filePath = context.Server.MapPath(filePath);
if (File.Exists(filePath))
{
var size = new Size(width, height);
using (var img = Image.FromFile(filePath))
{
var image = crop ?
Thumbnail.Create(img, size, refpoint) :
Thumbnail.Resize(img, size);
using (image)
{
var fileName = Path.GetFileName(filePath);
var stream = Transform.Convert(image);
context.Response.ContentType = "image/png";
context.Response.BinaryWrite(stream.ToArray());
context.Response.Flush();
//if (configuration.Thumb.EnableCache
// && context.Cache[fileName] == null
//)
//{
// var cachePriority = CacheItemPriority.Normal;
// if (configuration.Thumb.CachePriority > 0)
// {
// Enum.TryParse(configuration.Thumb.CachePriority.ToString(), out cachePriority);
// }
// context.Cache.Add(
// fileName,
// image,
// null,
// DateTime.Now.AddMilliseconds(configuration.Thumb.Expiration),
// TimeSpan.FromMilliseconds(configuration.Thumb.SlidingExpiration),
// cachePriority,
// null
// );
//}
}
}
}
}
}
