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/*
* Copyright (c) 2023 Vaughn Nugent
*
* Library: CMNext
* Package: Content.Publishing.Blog.Admin
* File: MinioClientManager.cs
*
* CMNext is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* CMNext 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see https://www.gnu.org/licenses/.
*/
using System.IO;
using System.Threading;
using System.Threading.Tasks;
using Minio;
using Minio.DataModel;
using Minio.DataModel.Args;
using VNLib.Utils.Memory;
using VNLib.Utils.Extensions;
using VNLib.Plugins;
using VNLib.Plugins.Extensions.Loading;
using static Content.Publishing.Blog.Admin.Model.PostManager;
namespace Content.Publishing.Blog.Admin.Storage
{
[ConfigurationName("s3_config")]
internal sealed class MinioClientManager : StorageBase
{
private readonly MinioClient Client;
private readonly S3Config Config;
public MinioClientManager(PluginBase pbase, IConfigScope s3Config)
{
//Deserialize the config
Config = s3Config.Deserialze<S3Config>();
Client = new();
}
///<inheritdoc/>
protected override string? BasePath => Config.BaseBucket;
///<inheritdoc/>
public override async Task ConfigureServiceAsync(PluginBase plugin)
{
using ISecretResult? secret = await plugin.GetSecretAsync("s3_secret");
Client.WithEndpoint(Config.ServerAddress)
.WithCredentials(Config.ClientId, secret.Result.ToString());
Client.WithSSL(Config.UseSsl.HasValue && Config.UseSsl.Value);
//Accept optional region
if (!string.IsNullOrWhiteSpace(Config.Region))
{
Client.WithRegion(Config.Region);
}
//10 second timeout
Client.WithTimeout(10 * 1000);
//Setup debug trace
if (plugin.IsDebug())
{
Client.SetTraceOn(new ReqLogger(plugin.Log));
}
//Build client
Client.Build();
}
///<inheritdoc/>
public override Task DeleteFileAsync(string filePath, CancellationToken cancellation)
{
RemoveObjectArgs args = new();
args.WithBucket(Config.BaseBucket)
.WithObject(filePath);
//Remove the object
return Client.RemoveObjectAsync(args, cancellation);
}
///<inheritdoc/>
public override Task WriteFileAsync(string filePath, Stream data, string ct, CancellationToken cancellation)
{
PutObjectArgs args = new();
args.WithBucket(Config.BaseBucket)
.WithContentType(ct)
.WithObject(filePath)
.WithObjectSize(data.Length)
.WithStreamData(data);
//Upload the object
return Client.PutObjectAsync(args, cancellation);
}
///<inheritdoc/>
public override async Task<long> ReadFileAsync(string filePath, Stream output, CancellationToken cancellation)
{
//Get the item
GetObjectArgs args = new();
args.WithBucket(Config.BaseBucket)
.WithObject(filePath)
.WithCallbackStream(async (stream, cancellation) =>
{
//Read the object to memory
await stream.CopyToAsync(output, 16384, MemoryUtil.Shared, cancellation);
});
try
{
//Get the post content file
ObjectStat stat = await Client.GetObjectAsync(args, cancellation);
return stat.Size;
}
catch (Minio.Exceptions.ObjectNotFoundException)
{
//File not found
return -1L;
}
}
}
}
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