public async Task <IActionResult> OnGetAsync(string id)
{
var image = await _imagesService.FindByIdAsync(id);
if (image == null)
{
return(NotFound());
}
PageTitle = await TranslationsService.TranslateAsync("images");
TitleDisplay = await TranslationsService.TranslateAsync("title");
ImageDisplay = await TranslationsService.TranslateAsync("image");
TitleRequiredError = TranslationsService.TranslateErrorByDescriber(ErrorDescriberConstants.RequiredField, $"The field '{TitleDisplay}' is required.", TitleDisplay);
TitleLengthError = TranslationsService.TranslateErrorByDescriber(ErrorDescriberConstants.StringLength, $"The field '{TitleDisplay}' must contain a minimum of {4} and a maximum of {30} characters.", TitleDisplay, 4.ToString(), 30.ToString());
ForeignKeyProperties = _imagesService.GetForeignKeyPropertiesToDto(image).ToList();
ViewData["ImgId"] = id;
ImageId = id;
Vm = new UpdateImageViewModel
{
Title = image.Name,
Url = image.Url
};
return(Page());
}
public async Task <ActionResult> Update([FromForm] UpdateImageViewModel updateImageViewModel)
{
if (updateImageViewModel.Files.Length > 0 && updateImageViewModel.Files.FileName.Length > 0)
{
try
{
if (!Directory.Exists(_environment.WebRootPath + "uploads/"))
{
Directory.CreateDirectory(_environment.WebRootPath + "uploads/");
}
using (var reader = new BinaryReader(updateImageViewModel.Files.OpenReadStream()))
{
var signatures = _fileSignature[Path.GetExtension(updateImageViewModel.Files.FileName).ToLowerInvariant()];
var headerBytes = reader.ReadBytes(signatures.Max(m => m.Length));
validFile = signatures.Any(signature =>
headerBytes.Take(signature.Length).SequenceEqual(signature));
}
if (!validFile)
{
return(BadRequest());
}
System.IO.File.Delete(_environment.WebRootPath + "uploads/" + updateImageViewModel.ResponseCode + ".jpeg");
await using (FileStream filestream = System.IO.File.Create(_environment.WebRootPath + "uploads/" + updateImageViewModel.ResponseCode + ".jpeg"))
{
await updateImageViewModel.Files.CopyToAsync(filestream);
filestream.Flush();
return(Ok());
}
}
//TODO: Implement authentication schema
catch (KeyNotFoundException)
{
return(BadRequest());
}
}
return(Ok());
}
