/// <summary>
/// Gets a resized image for the image at the given path
/// </summary>
/// <param name="imagePath"></param>
/// <param name="width"></param>
/// <returns></returns>
/// <remarks>
/// If there is no media, image property or image file is found then this will return not found.
/// </remarks>
public HttpResponseMessage GetResized(string imagePath, int width)
{
var ext = Path.GetExtension(imagePath);
// we need to check if it is an image by extension
if (_contentSection.IsImageFile(ext) == false)
{
return(Request.CreateResponse(HttpStatusCode.NotFound));
}
//redirect to ImageProcessor thumbnail with rnd generated from last modified time of original media file
var response = Request.CreateResponse(HttpStatusCode.Found);
var imageLastModified = _mediaFileSystem.GetLastModified(imagePath);
response.Headers.Location = new Uri($"{imagePath}?rnd={imageLastModified:yyyyMMddHHmmss}&upscale=false&width={width}&animationprocessmode=first&mode=max", UriKind.Relative);
return(response);
}
/// <summary>
/// Gets a resized image for the image at the given path
/// </summary>
/// <param name="imagePath"></param>
/// <param name="width"></param>
/// <returns></returns>
/// <remarks>
/// If there is no media, image property or image file is found then this will return not found.
/// </remarks>
public HttpResponseMessage GetResized(string imagePath, int width)
{
var ext = Path.GetExtension(imagePath);
// we need to check if it is an image by extension
if (_contentSection.IsImageFile(ext) == false)
{
return(Request.CreateResponse(HttpStatusCode.NotFound));
}
//redirect to ImageProcessor thumbnail with rnd generated from last modified time of original media file
var response = Request.CreateResponse(HttpStatusCode.Found);
DateTimeOffset?imageLastModified = null;
try
{
imageLastModified = _mediaFileSystem.GetLastModified(imagePath);
}
catch (Exception)
{
// if we get an exception here it's probably because the image path being requested is an image that doesn't exist
// in the local media file system. This can happen if someone is storing an absolute path to an image online, which
// is perfectly legal but in that case the media file system isn't going to resolve it.
// so ignore and we won't set a last modified date.
}
var rnd = imageLastModified.HasValue ? $"&rnd={imageLastModified:yyyyMMddHHmmss}" : null;
var imageUrl = _imageUrlGenerator.GetImageUrl(new ImageUrlGenerationOptions(imagePath)
{
UpScale = false, Width = width, AnimationProcessMode = "first", ImageCropMode = "max", CacheBusterValue = rnd
});
response.Headers.Location = new Uri(imageUrl, UriKind.RelativeOrAbsolute);
return(response);
}
