public virtual Task <FileUploadOutputDto> CreateAsync(FileUploadInputDto input)
{
if (input.Bytes.IsNullOrEmpty())
{
ThrowValidationException("Bytes can not be null or empty!", "Bytes");
}
if (input.Bytes.Length > BloggingWebConsts.FileUploading.MaxFileSize)
{
throw new UserFriendlyException($"File exceeds the maximum upload size ({BloggingWebConsts.FileUploading.MaxFileSizeAsMegabytes} MB)!");
}
if (!ImageFormatHelper.IsValidImage(input.Bytes, FileUploadConsts.AllowedImageUploadFormats))
{
throw new UserFriendlyException("Not a valid image format!");
}
var uniqueFileName = GenerateUniqueFileName(Path.GetExtension(input.Name));
var filePath = Path.Combine(Options.FileUploadLocalFolder, uniqueFileName);
if (!Directory.Exists(Options.FileUploadLocalFolder))
{
Directory.CreateDirectory(Options.FileUploadLocalFolder);
}
File.WriteAllBytes(filePath, input.Bytes); //TODO: Previously was using WriteAllBytesAsync, but it's only in .netcore.
return(Task.FromResult(new FileUploadOutputDto
{
Name = uniqueFileName,
WebUrl = "/api/blogging/files/www/" + uniqueFileName
}));
}
public static void ValidateImage([CanBeNull] this IFormFile file, out byte[] fileBytes)
{
fileBytes = null;
if (file == null)
{
throw new UserFriendlyException("No file found!");
}
if (file.Length <= 0)
{
throw new UserFriendlyException("File is empty!");
}
if (!file.ContentType.Contains("image"))
{
throw new UserFriendlyException("Not a valid image!");
}
using (var stream = file.OpenReadStream())
{
fileBytes = stream.GetAllBytes();
}
if (!ImageFormatHelper.IsValidImage(fileBytes, BloggingWebConsts.FileUploading.AllowedImageUploadFormats))
{
throw new UserFriendlyException("Not a valid image format!");
}
if (file.Length > BloggingWebConsts.FileUploading.MaxFileSize)
{
throw new UserFriendlyException($"File exceeds the maximum upload size ({BloggingWebConsts.FileUploading.MaxFileSizeAsMegabytes} MB)!");
}
}
public virtual async Task <FileUploadOutputDto> CreateAsync(FileUploadInputDto input)
{
if (input.Bytes.IsNullOrEmpty())
{
ThrowValidationException("Bytes of file can not be null or empty!", "Bytes");
}
if (input.Bytes.Length > BloggingWebConsts.FileUploading.MaxFileSize)
{
throw new UserFriendlyException($"File exceeds the maximum upload size ({BloggingWebConsts.FileUploading.MaxFileSizeAsMegabytes} MB)!");
}
if (!ImageFormatHelper.IsValidImage(input.Bytes, FileUploadConsts.AllowedImageUploadFormats))
{
throw new UserFriendlyException("Invalid image format!");
}
var uniqueFileName = GenerateUniqueFileName(Path.GetExtension(input.Name));
await BlobContainer.SaveAsync(uniqueFileName, input.Bytes);
return(new FileUploadOutputDto
{
Name = uniqueFileName,
WebUrl = "/api/blogging/files/www/" + uniqueFileName
});
}
public virtual async Task <FileUploadOutputDto> CreateAsync(FileUploadInputDto input)
{
if (input.File == null)
{
ThrowValidationException("Bytes of file can not be null or empty!", nameof(input.File));
}
if (input.File.ContentLength > BloggingWebConsts.FileUploading.MaxFileSize)
{
throw new UserFriendlyException($"File exceeds the maximum upload size ({BloggingWebConsts.FileUploading.MaxFileSizeAsMegabytes} MB)!");
}
var position = input.File.GetStream().Position;
if (!ImageFormatHelper.IsValidImage(input.File.GetStream(), FileUploadConsts.AllowedImageUploadFormats))
{
throw new UserFriendlyException("Invalid image format!");
}
// IsValidImage may change the position of the stream
if (input.File.GetStream().CanSeek)
{
input.File.GetStream().Position = position;
}
var uniqueFileName = GenerateUniqueFileName(Path.GetExtension(input.Name));
await BlobContainer.SaveAsync(uniqueFileName, input.File.GetStream());
return(new FileUploadOutputDto
{
Name = uniqueFileName,
WebUrl = "/api/blogging/files/www/" + uniqueFileName
});
}