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#region Disclaimer / License
// Copyright (C) 2015, The Duplicati Team
// http://www.duplicati.com, info@duplicati.com
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
//
#endregion
using Duplicati.Library.Interface;
using System.Collections.Generic;
using System.IO;
using System.Threading;
using System.Threading.Tasks;
namespace Duplicati.Library.Backend.AzureBlob
{
// ReSharper disable once UnusedMember.Global
// This class is instantiated dynamically in the BackendLoader.
public class AzureBlobBackend : IStreamingBackend
{
private readonly AzureBlobWrapper _azureBlob;
// ReSharper disable once UnusedMember.Global
// This constructor is needed by the BackendLoader.
public AzureBlobBackend()
{
}
// ReSharper disable once UnusedMember.Global
// This constructor is needed by the BackendLoader.
public AzureBlobBackend(string url, Dictionary<string, string> options)
{
var uri = new Utility.Uri(url);
uri.RequireHost();
string storageAccountName = null;
string accessKey = null;
string containerName = uri.Host.ToLowerInvariant();
if (options.ContainsKey("auth-username"))
storageAccountName = options["auth-username"];
if (options.ContainsKey("auth-password"))
accessKey = options["auth-password"];
if (options.ContainsKey("azure_account_name"))
storageAccountName = options["azure_account_name"];
if (options.ContainsKey("azure-account-name"))
storageAccountName = options["azure-account-name"];
if (options.ContainsKey("azure_access_key"))
accessKey = options["azure_access_key"];
if (options.ContainsKey("azure-access-key"))
accessKey = options["azure-access-key"];
if (!string.IsNullOrEmpty(uri.Username))
storageAccountName = uri.Username;
if (!string.IsNullOrEmpty(uri.Password))
accessKey = uri.Password;
if (string.IsNullOrWhiteSpace(storageAccountName))
{
throw new UserInformationException(Strings.AzureBlobBackend.NoStorageAccountName, "AzureNoAccountName");
}
if (string.IsNullOrWhiteSpace(accessKey))
{
throw new UserInformationException(Strings.AzureBlobBackend.NoAccessKey, "AzureNoAccessKey");
}
_azureBlob = new AzureBlobWrapper(storageAccountName, accessKey, containerName);
}
public string DisplayName
{
get { return Strings.AzureBlobBackend.DisplayName; }
}
public string ProtocolKey
{
get { return "azure"; }
}
public IEnumerable<IFileEntry> List()
{
return _azureBlob.ListContainerEntries();
}
public Task PutAsync(string remotename, string localname, CancellationToken cancelToken)
{
using (var fs = File.Open(localname,
FileMode.Open, FileAccess.Read, FileShare.Read))
{
return PutAsync(remotename, fs, cancelToken);
}
}
public async Task PutAsync(string remotename, Stream input, CancellationToken cancelToken)
{
await _azureBlob.AddFileStream(remotename, input, cancelToken);
}
public void Get(string remotename, string localname)
{
using (var fs = File.Open(localname,
FileMode.Create, FileAccess.Write,
FileShare.None))
{
Get(remotename, fs);
}
}
public void Get(string remotename, Stream output)
{
_azureBlob.GetFileStream(remotename, output);
}
public void Delete(string remotename)
{
_azureBlob.DeleteObject(remotename);
}
public IList<ICommandLineArgument> SupportedCommands
{
get
{
return new List<ICommandLineArgument>(new ICommandLineArgument[] {
new CommandLineArgument("azure_account_name",
CommandLineArgument.ArgumentType.String,
Strings.AzureBlobBackend.StorageAccountNameDescriptionShort,
Strings.AzureBlobBackend.StorageAccountNameDescriptionLong,
null, null, null, "This is deprecated, use azure-account-name instead"),
new CommandLineArgument("azure_access_key",
CommandLineArgument.ArgumentType.Password,
Strings.AzureBlobBackend.AccessKeyDescriptionShort,
Strings.AzureBlobBackend.AccessKeyDescriptionLong,
null, null, null, "This is deprecated, use azure-access-key instead"),
new CommandLineArgument("azure_blob_container_name",
CommandLineArgument.ArgumentType.String,
Strings.AzureBlobBackend.ContainerNameDescriptionShort,
Strings.AzureBlobBackend.ContainerNameDescriptionLong,
null, null, null, "This is deprecated, use azure-blob-container-name instead"),
new CommandLineArgument("azure-account-name",
CommandLineArgument.ArgumentType.String,
Strings.AzureBlobBackend.StorageAccountNameDescriptionShort,
Strings.AzureBlobBackend.StorageAccountNameDescriptionLong),
new CommandLineArgument("azure-access-key",
CommandLineArgument.ArgumentType.Password,
Strings.AzureBlobBackend.AccessKeyDescriptionShort,
Strings.AzureBlobBackend.AccessKeyDescriptionLong),
new CommandLineArgument("azure-blob-container-name",
CommandLineArgument.ArgumentType.String,
Strings.AzureBlobBackend.ContainerNameDescriptionShort,
Strings.AzureBlobBackend.ContainerNameDescriptionLong),
new CommandLineArgument("auth-password",
CommandLineArgument.ArgumentType.Password,
Strings.AzureBlobBackend.AuthPasswordDescriptionShort,
Strings.AzureBlobBackend.AuthPasswordDescriptionLong),
new CommandLineArgument("auth-username",
CommandLineArgument.ArgumentType.String,
Strings.AzureBlobBackend.AuthUsernameDescriptionShort,
Strings.AzureBlobBackend.AuthUsernameDescriptionLong)
});
}
}
public string Description
{
get
{
return Strings.AzureBlobBackend.Description_v2;
}
}
public string[] DNSName
{
get { return _azureBlob.DnsNames; }
}
public void Test()
{
this.TestList();
}
public void CreateFolder()
{
_azureBlob.AddContainer();
}
public void Dispose()
{
}
}
}
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