public static StorageCommand SetStreamSource(this StorageCommand command, Stream stream, string fileExtension)
{
var source = StorageCommand.CreateSourceProvider(async () => stream, false);
command.Extension = fileExtension;
return command.SetSourceProvider(source);
}
/// <summary>
/// Save a file from various sources to the remote storage
/// </summary>
/// <param name="command">Options for the saving the file</param>
/// <returns>name of file as stored in the remote storage</returns>
public async Task <string> SaveAsync(StorageCommand command)
{
var sourceProvider = command.SourceProvider;
Stream sourceStream = null;
try
{
sourceStream = await sourceProvider.GetStreamAsync().IgnoreContext();
if (String.IsNullOrEmpty(command.FileName))
{
command.FileName = String.Format("{0}{1}", Guid.NewGuid().ToShortGuid(), command.Extension);
}
else
{
if (!String.IsNullOrEmpty(command.Extension) && String.IsNullOrEmpty(Path.GetExtension(command.FileName)))
{
command.FileName = $"{command.FileName}{command.Extension}";
}
}
if (String.IsNullOrEmpty(command.ContentType))
{
command.ContentType = GlobalConfiguration.Instance.GetMimeMapping().GetMimeType(command.FileName);
}
if (!String.IsNullOrEmpty(command.Folder))
{
command.FileName = "{0}/{1}".FormatWith(command.Folder, command.FileName);
}
var keys = command.EncryptionOptions?.GetKeys(command.FileName);
if (keys != null)
{
using (var streamToSave = await EncryptedStream.CreateAsync(sourceStream, keys.Secret, keys.Salt)
.IgnoreContext())
{
await _storage.SaveAsync(streamToSave, command.FileName, command.ContentType)
.IgnoreContext();
}
}
else
{
await _storage.SaveAsync(sourceStream, command.FileName, command.ContentType)
.IgnoreContext();
}
}
finally
{
if (sourceStream != null && sourceProvider.AutoDispose)
{
sourceStream.Dispose();
}
}
return(command.FileName);
}
public static StorageCommand SetUrlSource(this StorageCommand command, string url)
{
var source = StorageCommand.CreateSourceProvider(async () =>
{
var downloaded = await DownloadHelper.GetDataAsync(url);
if (!downloaded.HasOkStatus())
{
throw new ApplicationException($"Error downloading data at '{url}'", downloaded.Exception);
}
command.ContentType = command.ContentType.DefaultTo(downloaded.ContentType);
var fileName = $"{Guid.NewGuid().ToShortGuid()}{Path.GetExtension(new Uri(url).AbsolutePath)}";
command.FileName = command.FileName.DefaultTo(fileName);
return new MemoryStream(downloaded.Data);
}, true);
return command.SetSourceProvider(source);
}
public static StorageCommand SetImageSource(this StorageCommand command, Image image)
{
#pragma warning disable CS1998 // Async method lacks 'await' operators and will run synchronously
var source = StorageCommand.CreateSourceProvider(async () =>
{
ImageFormat format = null;
if (!String.IsNullOrEmpty(command.Extension))
{
format = command.Extension.GetImageFormat();
}
else
{
format = image.GetImageFormat();
command.Extension = format.FileExtension();
}
return image.ToStream(format);
}, true);
#pragma warning restore CS1998 // Async method lacks 'await' operators and will run synchronously
return command.SetSourceProvider(source);
}
public static StorageCommand SetFilePathSource(this StorageCommand command, string filePath)
{
var source = StorageCommand.CreateSourceProvider(async () => new FileStream(filePath, FileMode.Open, FileAccess.Read), true);
return command.SetSourceProvider(source);
}
public static StorageCommand SetByteArraySource(this StorageCommand command, byte[] byteArray)
{
var source = StorageCommand.CreateSourceProvider(async () => new MemoryStream(byteArray), true);
return command.SetSourceProvider(source);
}
public static StorageCommand SetStreamSource(this StorageCommand command, Stream stream)
{
var source = StorageCommand.CreateSourceProvider(async () => stream, false);
return command.SetSourceProvider(source);
}
/// <summary>
/// Save a file from various sources to the remote storage
/// </summary>
/// <param name="command">Options for the saving the file</param>
/// <returns>name of file as stored in the remote storage</returns>
public string Save(StorageCommand command)
{
return(TaskHelper.GetResultSafeSync(() => SaveAsync(command)));
}
