252 lines
9.4 KiB
C#
252 lines
9.4 KiB
C#
// Copyright (C) 2024, The Duplicati Team
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// https://duplicati.com, hello@duplicati.com
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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using Duplicati.Library.Common.IO;
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using Duplicati.Library.Interface;
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Threading;
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using System.Threading.Tasks;
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namespace Duplicati.Library.Backend
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{
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public class Idrivee2Backend : IBackend, IStreamingBackend
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{
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private static readonly string LOGTAG = Logging.Log.LogTagFromType<Idrivee2Backend>();
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static Idrivee2Backend()
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{
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}
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private readonly string m_prefix;
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private readonly string m_bucket;
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private IS3Client m_s3Client;
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public Idrivee2Backend()
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{
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}
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public Idrivee2Backend(string url, Dictionary<string, string> options)
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{
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var uri = new Utility.Uri(url);
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m_bucket = uri.Host;
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m_prefix = uri.Path;
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m_prefix = m_prefix.Trim();
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if (m_prefix.Length != 0)
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{
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m_prefix = Util.AppendDirSeparator(m_prefix, "/");
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}
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string accessKeyId = null;
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string accessKeySecret = null;
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if (options.ContainsKey("auth-username"))
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accessKeyId = options["auth-username"];
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if (options.ContainsKey("auth-password"))
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accessKeySecret = options["auth-password"];
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if (options.ContainsKey("access_key_id"))
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accessKeyId = options["access_key_id"];
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if (options.ContainsKey("secret_access_key"))
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accessKeySecret = options["secret_access_key"];
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if (string.IsNullOrEmpty(accessKeyId))
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throw new UserInformationException(Strings.Idrivee2Backend.NoKeyIdError, "Idrivee2NoKeyId");
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if (string.IsNullOrEmpty(accessKeySecret))
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throw new UserInformationException(Strings.Idrivee2Backend.NoKeySecretError, "Idrivee2NoKeySecret");
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string host= GetRegionEndpoint("https://api.idrivee2.com/api/service/get_region_end_point/" + accessKeyId);
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m_s3Client = new S3AwsClient(accessKeyId, accessKeySecret, null, host, null, true, false, options);
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}
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public string GetRegionEndpoint(string url)
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{
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try
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{
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System.Net.HttpWebRequest req = (System.Net.HttpWebRequest)System.Net.WebRequest.Create(url);
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req.Method = System.Net.WebRequestMethods.Http.Get;
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Utility.AsyncHttpRequest areq = new Utility.AsyncHttpRequest(req);
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using (System.Net.HttpWebResponse resp = (System.Net.HttpWebResponse)areq.GetResponse())
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{
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int code = (int)resp.StatusCode;
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if (code < 200 || code >= 300) //For some reason Mono does not throw this automatically
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throw new Exception("Failed to fetch region endpoint");
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using (var s = areq.GetResponseStream())
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{
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using (var reader = new StreamReader(s))
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{
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string endpoint = reader.ReadToEnd();
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return endpoint;
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}
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}
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}
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}
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catch (System.Net.WebException wex)
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{
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//Convert to better exception
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throw new Exception("Failed to fetch region endpoint");
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}
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}
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#region IBackend Members
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public string DisplayName
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{
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get { return Strings.Idrivee2Backend.DisplayName; }
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}
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public string ProtocolKey => "e2";
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public bool SupportsStreaming => true;
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public IEnumerable<IFileEntry> List()
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{
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foreach (IFileEntry file in Connection.ListBucket(m_bucket, m_prefix))
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{
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((FileEntry)file).Name = file.Name.Substring(m_prefix.Length);
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if (file.Name.StartsWith("/", StringComparison.Ordinal) && !m_prefix.StartsWith("/", StringComparison.Ordinal))
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((FileEntry)file).Name = file.Name.Substring(1);
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yield return file;
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}
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}
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public async Task PutAsync(string remotename, string localname, CancellationToken cancelToken)
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{
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using (FileStream fs = File.Open(localname, FileMode.Open, FileAccess.Read, FileShare.Read))
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await PutAsync(remotename, fs, cancelToken);
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}
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public async Task PutAsync(string remotename, Stream input, CancellationToken cancelToken)
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{
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await Connection.AddFileStreamAsync(m_bucket, GetFullKey(remotename), input, cancelToken);
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}
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public void Get(string remotename, string localname)
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{
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using (var fs = File.Open(localname, FileMode.Create, FileAccess.Write, FileShare.None))
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Get(remotename, fs);
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}
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public void Get(string remotename, Stream output)
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{
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Connection.GetFileStream(m_bucket, GetFullKey(remotename), output);
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}
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public void Delete(string remotename)
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{
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Connection.DeleteObject(m_bucket, GetFullKey(remotename));
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}
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public IList<ICommandLineArgument> SupportedCommands
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{
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get
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{
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var defaults = new Amazon.S3.AmazonS3Config()
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{
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// If this is not set, accessing the property will trigger an expensive operation (~30 seconds)
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// to get the region endpoint. This stalls the supported commands list.
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UseArnRegion = false
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};
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var exts =
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typeof(Amazon.S3.AmazonS3Config).GetProperties().Where(x => x.CanRead && x.CanWrite && (x.PropertyType == typeof(string) || x.PropertyType == typeof(bool) || x.PropertyType == typeof(int) || x.PropertyType == typeof(long) || x.PropertyType.IsEnum))
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.Select(x => (ICommandLineArgument)new CommandLineArgument(
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"s3-ext-" + x.Name.ToLowerInvariant(),
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x.PropertyType == typeof(bool) ? CommandLineArgument.ArgumentType.Boolean : x.PropertyType.IsEnum ? CommandLineArgument.ArgumentType.Enumeration : CommandLineArgument.ArgumentType.String,
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x.Name,
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string.Format("Extended option {0}", x.Name),
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string.Format("{0}", x.GetValue(defaults)),
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null,
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x.PropertyType.IsEnum ? Enum.GetNames(x.PropertyType) : null));
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var normal = new ICommandLineArgument[] {
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new CommandLineArgument("access_key_secret", CommandLineArgument.ArgumentType.Password, Strings.Idrivee2Backend.KeySecretDescriptionShort, Strings.Idrivee2Backend.KeySecretDescriptionLong, null, new[]{"auth-password"}, null),
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new CommandLineArgument("access_key_id", CommandLineArgument.ArgumentType.String, Strings.Idrivee2Backend.KeyIDDescriptionShort, Strings.Idrivee2Backend.KeyIDDescriptionLong,null, new[]{"auth-username"}, null)
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};
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return normal.Union(exts).ToList();
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}
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}
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public string Description
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{
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get
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{
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return Strings.Idrivee2Backend.Description;
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}
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}
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public void Test()
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{
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this.TestList();
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}
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public void CreateFolder()
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{
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//S3 does not complain if the bucket already exists
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Connection.AddBucket(m_bucket);
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}
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#endregion
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#region IRenameEnabledBackend Members
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public void Rename(string source, string target)
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{
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Connection.RenameFile(m_bucket, GetFullKey(source), GetFullKey(target));
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}
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#endregion
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#region IDisposable Members
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public void Dispose()
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{
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m_s3Client?.Dispose();
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m_s3Client = null;
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}
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#endregion
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private IS3Client Connection => m_s3Client;
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public string[] DNSName
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{
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get { return new[] { m_s3Client.GetDnsHost() }; }
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}
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private string GetFullKey(string name)
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{
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//AWS SDK encodes the filenames correctly
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return m_prefix + name;
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}
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}
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}
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