//[OutputCache(Duration = 60 * 60 * 24 * 30, Location = OutputCacheLocation.Downstream)]
public async Task <ActionResult> Image(int assetId, string fileName, string extension, int?cropSizeId)
{
var settings = ImageResizeSettings.ParseFromQueryString(Request.Query);
var getImageQuery = new GetImageAssetRenderDetailsByIdQuery(assetId);
var asset = await _queryExecutor.ExecuteAsync(getImageQuery);
if (asset == null)
{
return(FileAssetNotFound("Image could not be found"));
}
if (SlugFormatter.ToSlug(asset.FileName) != fileName)
{
var url = _imageAssetRouteLibrary.ImageAsset(asset, settings);
return(RedirectPermanent(url));
}
var lastModified = DateTime.SpecifyKind(asset.UpdateDate, DateTimeKind.Utc);
// Round the ticks down (see http://stackoverflow.com/a/1005222/486434), because http headers are only accurate to seconds, so get rounded down
lastModified = lastModified.AddTicks(-(lastModified.Ticks % TimeSpan.TicksPerSecond));
if (!string.IsNullOrEmpty(Request.Headers["If-Modified-Since"]))
{
DateTime ifModifiedSince;
if (DateTime.TryParse(Request.Headers["If-Modified-Since"], out ifModifiedSince) && lastModified <= ifModifiedSince.ToUniversalTime())
{
return(StatusCode(304));
}
}
Stream stream = null;
try
{
stream = await _resizedImageAssetFileService.GetAsync(asset, settings);
}
catch (FileNotFoundException ex)
{
// If the file exists but the file has gone missing, log and return a 404
_logger.LogError(0, ex, "Image Asset exists, but has no file: {0}", assetId);
return(FileAssetNotFound("File not found"));
}
// Expire the image, so browsers always check with the server, but also send a last modified date so we can check for If-Modified-Since on the next request and return a 304 Not Modified.
var headers = Response.GetTypedHeaders();
headers.Expires = DateTime.UtcNow.AddMonths(-1);
headers.LastModified = lastModified;
var contentType = _mimeTypeService.MapFromFileName("." + asset.Extension);
return(new FileStreamResult(stream, contentType));
}
//[OutputCache(Duration = 60 * 60 * 24 * 30, Location = OutputCacheLocation.Downstream)]
public ActionResult Image(int assetId, string fileName, string extension, int?cropSizeId)
{
var qs = Request.Url.Query;
var settings = ImageResizeSettings.ParseFromQueryString(qs);
var asset = _queryExecutor.GetById <ImageAssetRenderDetails>(assetId);
if (asset == null)
{
return(FileAssetNotFound("Image could not be found"));
}
if (SlugFormatter.ToSlug(asset.FileName) != fileName)
{
var url = _imageAssetRouteLibrary.ImageAsset(asset, settings);
return(RedirectPermanent(url));
}
DateTime lastModified = DateTime.SpecifyKind(asset.UpdateDate, DateTimeKind.Utc);
// Round the ticks down (see http://stackoverflow.com/a/1005222/486434), because http headers are only accurate to seconds, so get rounded down
lastModified = lastModified.AddTicks(-(lastModified.Ticks % TimeSpan.TicksPerSecond));
if (!string.IsNullOrEmpty(Request.Headers["If-Modified-Since"]))
{
DateTime ifModifiedSince;
if (DateTime.TryParse(Request.Headers["If-Modified-Since"], out ifModifiedSince) && lastModified <= ifModifiedSince.ToUniversalTime())
{
return(new HttpStatusCodeResult(304, "Not Modified"));
}
}
Stream stream = null;
try
{
stream = _resizedImageAssetFileService.Get(asset, settings);
}
catch (FileNotFoundException ex)
{
// If the file exists but the file has gone missing, log and return a 404
_errorLoggingService.Log(ex);
return(FileAssetNotFound("File not found"));
}
// Expire the image, so browsers always check with the server, but also send a last modified date so we can check for If-Modified-Since on the next request and return a 304 Not Modified.
Response.Cache.SetExpires(DateTime.UtcNow.AddMonths(-1));
Response.Cache.SetLastModified(lastModified);
var contentType = MimeMapping.GetMimeMapping(asset.Extension);
return(new FileStreamResult(stream, contentType));
}
public async Task <ActionResult> Image_OldPath(int assetId, string fileName, string extension, int?cropSizeId)
{
var settings = ImageResizeSettings.ParseFromQueryString(Request.Query);
var getImageQuery = new GetImageAssetRenderDetailsByIdQuery(assetId);
var asset = await _queryExecutor.ExecuteAsync(getImageQuery);
if (asset == null)
{
return(FileAssetNotFound("Image could not be found"));
}
var url = _imageAssetRouteLibrary.ImageAsset(asset, settings);
return(RedirectPermanent(url));
}
public async Task <ActionResult> Image(int imageAssetId, long fileStamp, string verificationToken, string fileName, string extension)
{
var settings = ImageResizeSettings.ParseFromQueryString(Request.Query);
var getImageQuery = new GetImageAssetRenderDetailsByIdQuery(imageAssetId);
var asset = await _queryExecutor.ExecuteAsync(getImageQuery);
// additionally check that filestamp is not after the curent update date
if (asset == null || !IsFileStampValid(fileStamp, asset.FileUpdateDate) || asset.VerificationToken != verificationToken)
{
return(FileAssetNotFound("Image could not be found"));
}
// if the title or filestamp is different, redirect to the correct url
var sluggedFileName = SlugFormatter.ToSlug(asset.FileName);
if (sluggedFileName != fileName || fileStamp.ToString() != asset.FileStamp)
{
var url = _imageAssetRouteLibrary.ImageAsset(asset, settings);
return(RedirectPermanent(url));
}
Stream stream = null;
try
{
stream = await _resizedImageAssetFileService.GetAsync(asset, settings);
}
catch (FileNotFoundException ex)
{
// If the file exists but the file has gone missing, log and return a 404
_logger.LogError(0, ex, "Image Asset exists, but has no file: {0}", imageAssetId);
return(FileAssetNotFound("File not found"));
}
var contentType = _mimeTypeService.MapFromFileName("." + asset.FileExtension);
SetCacheHeader(_imageAssetsSettings.CacheMaxAge);
return(new FileStreamResult(stream, contentType));
}