private async Task <Workflow> LoadWorkflowDefinitionAsync(IFileStoreEntry file, CancellationToken cancellationToken)
{
var data = await fileStore.ReadToEndAsync(file.Path);
var workflow = await workflowSerializer.DeserializeAsync(data, Format, cancellationToken);
workflow.Metadata.Id = file.Name;
return(workflow);
}
public Task <Stream> GetFileStreamAsync(IFileStoreEntry fileStoreEntry)
{
if (!File.Exists(fileStoreEntry.Path))
{
throw new FileStoreException($"Cannot get file stream because the file '{fileStoreEntry.Path}' does not exist.");
}
var stream = File.OpenRead(fileStoreEntry.Path);
return(Task.FromResult <Stream>(stream));
}
// Reduces the need to call blob.FetchAttributes, and blob.ExistsAsync,
// as Azure Storage Library will perform these actions on OpenReadAsync().
public Task <Stream> GetFileStreamAsync(IFileStoreEntry fileStoreEntry)
{
var blobFile = fileStoreEntry as BlobFile;
if (blobFile == null || blobFile.BlobReference == null)
{
throw new FileStoreException("Cannot get file stream because the file does not exist.");
}
return(blobFile.BlobReference.OpenReadAsync());
}
public object CreateFileResult(IFileStoreEntry mediaFile)
{
return(new
{
name = mediaFile.Name,
size = mediaFile.Length,
folder = mediaFile.DirectoryPath,
url = _mediaFileStore.MapPathToPublicUrl(mediaFile.Path),
mediaPath = mediaFile.Path,
mime = MimeMapping.MimeUtility.GetMimeMapping(mediaFile.Path)
});
}
public Task <Stream> GetFileStream(IFileStoreEntry fileStoreEntry)
{
var physicalPath = GetPhysicalPath(fileStoreEntry.Path);
if (!File.Exists(physicalPath))
{
throw new Exception($"Cannot get file stream because the file '{fileStoreEntry.Path}' does not exist.");
}
var stream = File.OpenRead(physicalPath);
return(Task.FromResult <Stream>(stream));
}
public object CreateFileResult(IFileStoreEntry mediaFile)
{
_contentTypeProvider.TryGetContentType(mediaFile.Name, out var contentType);
return(new
{
name = mediaFile.Name,
size = mediaFile.Length,
folder = mediaFile.DirectoryPath,
url = _mediaFileStore.MapPathToPublicUrl(mediaFile.Path),
mediaPath = mediaFile.Path,
mime = contentType ?? "application/octet-stream"
});
}
public async Task SetCacheAsync(Stream stream, IFileStoreEntry fileStoreEntry, CancellationToken cancellationToken)
{
// File store semantics include a leading slash.
var cachePath = Path.Combine(Root, fileStoreEntry.Path.Substring(1));
var directory = Path.GetDirectoryName(cachePath);
if (!Directory.Exists(directory))
{
Directory.CreateDirectory(directory);
}
// A file download may fail, so a partially downloaded file should be deleted so the next request can reprocess.
// All exceptions here are recaught by the MediaFileStoreResolverMiddleware.
try
{
if (File.Exists(cachePath))
{
File.Delete(cachePath);
}
using (var fileStream = File.Create(cachePath))
{
await stream.CopyToAsync(fileStream, StreamCopyBufferSize);
await stream.FlushAsync();
if (fileStream.Length == 0)
{
throw new Exception($"Error retrieving file (length equals 0 byte) : {cachePath}");
}
}
}
catch (Exception ex)
{
_logger.LogError(ex, "Error saving file {Path}", cachePath);
if (File.Exists(cachePath))
{
try
{
File.Delete(cachePath);
}
catch (Exception e)
{
_logger.LogError(e, "Error deleting file {Path}", cachePath);
throw;
}
}
throw;
}
}
public object CreateFileResult(IFileStoreEntry mediaFile)
{
_contentTypeProvider.TryGetContentType(mediaFile.Name, out var contentType);
return(new
{
name = mediaFile.Name,
size = mediaFile.Length,
lastModify = mediaFile.LastModifiedUtc.Subtract(new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc)).TotalMilliseconds,
folder = mediaFile.DirectoryPath,
url = _mediaFileStore.MapPathToPublicUrl(mediaFile.Path),
mediaPath = mediaFile.Path,
mime = contentType ?? "application/octet-stream"
});
}
public async Task SetCacheAsync(Stream stream, IFileStoreEntry fileStoreEntry, CancellationToken cancellationToken)
{
// File store semantics include a leading slash.
var cachePath = Path.Combine(Root, fileStoreEntry.Path.Substring(1));
var directory = Path.GetDirectoryName(cachePath);
if (!Directory.Exists(directory))
{
Directory.CreateDirectory(directory);
}
using (var fileStream = File.Create(cachePath))
{
await stream.CopyToAsync(fileStream, StreamCopyBufferSize, cancellationToken);
}
}
public async Task <Stream> GetFileStreamAsync(IFileStoreEntry fileStoreEntry)
{
var fileEntity = await GetFileEntityByPath(fileStoreEntry.Path);
try
{
var stream = await _mongoRepository.GetFileStreamAsync(fileEntity._id);
return(stream);
}
catch (Exception e)
{
_logger.LogError(e.StackTrace);
return(null);
}
}
public Task <Permission> GetPermissionAsync(IFileStoreEntry fileStoreEntry)
{
if (_permissions.Any())
{
var r = _permissions.Select(async f => await f.GetPermissionAsync(fileStoreEntry));
return(Task.Run(() =>
{
return (Permission)r.Sum(f => (int)f.Result);
}));
}
else
{
//var read = Permission.ListSubFolders | Permission.ListFiles | Permission.Download | Permission.Copy | Permission.Preview | Permission.Print;
var full = Permission.ListSubFolders | Permission.ListFiles | Permission.Download | Permission.Copy | Permission.Preview | Permission.Print
| Permission.Create | Permission.Delete | Permission.Rename | Permission.Edit | Permission.Upload | Permission.Compress | Permission.Extract | Permission.Cut | Permission.Paste | Permission.CreatePublicLink;
return(Task.FromResult(full));
}
}
internal StoreFileInfo(IFileStore store, IFileStoreEntry fileStore)
{
this._store = store;
this._fileStore = fileStore;
}
public async Task <Stream> GetFileStreamAsync(IFileStoreEntry fileStoreEntry)
{
return(await GetFileStreamAsync(fileStoreEntry.Path));
}
public Task <Stream> GetFileStreamAsync(IFileStoreEntry fileStoreEntry)
{
return(_fileStore.GetFileStreamAsync(fileStoreEntry));
}
//public Task<Permission> GetFilePermissionAsync(string path)
//{
// throw new NotImplementedException();
//}
public Task <Permission> GetPermissionAsync(IFileStoreEntry fileStoreEntry)
{
return(_func(fileStoreEntry));
}
public virtual Task <Stream> GetFileStream(IFileStoreEntry fileStoreEntry)
{
return(_fileStore.GetFileStream(fileStoreEntry));
}
