/// <summary>
/// Handle the DeleteAzureBlobCommand request.
/// </summary>
/// <param name="request">The DeleteAzureBlobCommand request.</param>
/// <param name="cancellationToken">A cancellation token.</param>
public async Task <Result> Handle(DeleteAzureBlobCommand request, CancellationToken cancellationToken)
{
var cloudBlobContainer = await _azureBlobHelper.GetCloudBlobContainerAsync(cancellationToken);
if (!cloudBlobContainer.IsSuccess)
{
return(Result.Fail(cloudBlobContainer.Exception));
}
try
{
var blobName = $"{request.TargetPath.Trim('/')}/{request.FileName.Trim('/')}";
var cloudBlockBlob = cloudBlobContainer.Value.GetBlockBlobReference(blobName);
var result = await cloudBlockBlob.DeleteIfExistsAsync();
if (!result)
{
return(Result.Fail(new FileDeleteException($"The blob ({request.FileName}) does not exist.")));
}
return(Result.Success());
}
catch (Exception ex)
{
return(Result.Fail(new FileDeleteException($"The blob ({request.FileName}) could not be deleted.", ex)));
}
}
/// <summary>
/// Handle the GetPagedAzureBlobListQuery request.
/// </summary>
/// <param name="request">The GetPagedAzureBlobListQuery request.</param>
/// <param name="cancellationToken">A cancellation token.</param>
public async Task <Result <FileListModel> > Handle(GetPagedAzureBlobListQuery request, CancellationToken cancellationToken)
{
var cloudBlobContainer = await _azureBlobHelper.GetCloudBlobContainerAsync(cancellationToken);
if (!cloudBlobContainer.IsSuccess)
{
return(Result <FileListModel> .Fail(cloudBlobContainer.Exception));
}
var pager = new Pager(request.Page, request.ItemsPerPage);
var files = await GetPagedListAsync(pager, cloudBlobContainer.Value, request.DirectoryPath, request.FileType, cancellationToken);
var model = new FileListModel
{
Files = files,
Pager = pager
};
return(Result <FileListModel> .Success(model));
}
/// <summary>
/// Handle the UploadAzureBlobCommand request.
/// </summary>
/// <param name="request">The UploadAzureBlobCommand request.</param>
/// <param name="cancellationToken">A cancellation token.</param>
public async Task <Result <string> > Handle(UploadAzureBlobCommand request, CancellationToken cancellationToken)
{
// Use Path.GetFileName to obtain the file name, which will strip any path information passed as part of the FileName property.
var fileName = Path.GetFileName(request.File.FileName);
// Make the filename url safe
fileName = fileName.ToUrlSafeFileName();
var stream = new MemoryStream();
var result = await ProcessFormFileAsync(request.File, fileName, stream);
if (!result.IsSuccess)
{
return(result);
}
var cloudBlobContainer = await _azureBlobHelper.GetCloudBlobContainerAsync(cancellationToken);
if (!cloudBlobContainer.IsSuccess)
{
return(Result <string> .Fail(cloudBlobContainer.Exception));
}
try
{
var blobName = $"{request.TargetPath.Trim('/')}/{fileName.Trim('/')}";
var cloudBlockBlob = cloudBlobContainer.Value.GetBlockBlobReference(blobName);
cloudBlockBlob.Properties.ContentType = fileName.GetMimeType();
stream.Position = 0;
await cloudBlockBlob.UploadFromStreamAsync(stream);
return(Result <string> .Success(cloudBlockBlob.Uri.AbsoluteUri));
}
catch (Exception ex)
{
return(Result <string> .Fail(new FileUploadException($"The blob ({fileName}) upload failed", ex)));
}
}
