363 lines
15 KiB
C#
363 lines
15 KiB
C#
using System.Collections.Concurrent;
|
||
using System.Globalization;
|
||
using System.IO;
|
||
using System.Security.Cryptography;
|
||
using System.Threading.Channels;
|
||
using Microsoft.Extensions.Configuration;
|
||
using Minio;
|
||
using Minio.DataModel.Args;
|
||
using Minio.DataModel.Notification;
|
||
using Minio.Exceptions;
|
||
using Newtonsoft.Json.Linq;
|
||
using Polly;
|
||
using Polly.Retry;
|
||
|
||
namespace Hopetry.Services
|
||
{
|
||
public partial class MinioService
|
||
{
|
||
private IMinioClient _minioClient;
|
||
|
||
public readonly string _bucketName = null;
|
||
|
||
public MinioService()
|
||
{
|
||
var builder = new ConfigurationBuilder()
|
||
.SetBasePath(Directory.GetCurrentDirectory())
|
||
.AddJsonFile("global.json", optional: false, reloadOnChange: true);
|
||
// 构建配置
|
||
var config = builder.Build();
|
||
var minioConfig = config.GetSection("Minio");
|
||
_minioClient = new MinioClient()
|
||
.WithEndpoint(minioConfig["Endpoint"])
|
||
.WithCredentials(minioConfig["AccessKey"], minioConfig["SecretKey"]).Build();
|
||
_bucketName = minioConfig["BucketName"]!;
|
||
|
||
/*_minioClient = new MinioClient()
|
||
.WithEndpoint("123.132.248.154:9107")
|
||
.WithCredentials("oZNgo25pNXnKFV9oKGh4", "66GYn0x1XAEInSa9wdCutzvUWKfhH1EhqxPJ6a9u")
|
||
.Build();*/
|
||
|
||
EnsureBucketExistsAsync(_bucketName).Wait();
|
||
}
|
||
|
||
AsyncRetryPolicy policy = Policy
|
||
.Handle<MinioException>()
|
||
.WaitAndRetryAsync(3, retryAttempt =>
|
||
TimeSpan.FromSeconds(Math.Pow(2, retryAttempt)),
|
||
onRetry: (exception, delay, retryCount, context) =>
|
||
{
|
||
//日志
|
||
// _logger.LogWarning($"Retry {retryCount} for {context.PolicyKey}: {exception.Message}");
|
||
});
|
||
|
||
// 使用 Channel 实现生产者-消费者模式
|
||
/*private Channel<(string ObjectName, string ETag)> SyncChannel =
|
||
Channel.CreateBounded<(string, string)>(new BoundedChannelOptions(10000)
|
||
{
|
||
SingleWriter = false,
|
||
SingleReader = false,
|
||
FullMode = BoundedChannelFullMode.Wait
|
||
});*/
|
||
|
||
public async Task ListObject(string bucketName)
|
||
{
|
||
var listArgs = new ListObjectsArgs()
|
||
.WithBucket(bucketName)
|
||
.WithVersions(true)
|
||
.WithRecursive(true);
|
||
|
||
try
|
||
{
|
||
var observable = _minioClient.ListObjectsEnumAsync(listArgs);
|
||
//observable.ConfigureAwait(false);
|
||
await foreach (var item in observable)
|
||
{
|
||
Console.WriteLine("==============");
|
||
Console.WriteLine(item.Key);
|
||
//Console.WriteLine(item.IsDir);
|
||
Console.WriteLine(item.LastModified);
|
||
Console.WriteLine(item.Size);
|
||
Console.WriteLine(item.ETag);
|
||
Console.WriteLine(item.VersionId);
|
||
Console.WriteLine("==============");
|
||
}
|
||
}
|
||
catch (Exception e)
|
||
{
|
||
Console.WriteLine(e);
|
||
Console.WriteLine("我抛出的");
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 同步下载 todo 需要合并另外一个同步方法
|
||
/// </summary>
|
||
/// <param name="bucket"></param>
|
||
/// <param name="localDir"></param>
|
||
/// <param name="maxParallel"></param>
|
||
public async Task MirrorAsync1(string bucket, string localDir, int maxParallel = 5)
|
||
{
|
||
Channel<(string ObjectName, string ETag)> SyncChannel = Channel.CreateBounded<(string, string)>(
|
||
new BoundedChannelOptions(10000)
|
||
{
|
||
SingleWriter = false,
|
||
SingleReader = false,
|
||
FullMode = BoundedChannelFullMode.Wait
|
||
});
|
||
var count = 0;
|
||
var producerTasks = new List<Task>();
|
||
var listArgs = new ListObjectsArgs()
|
||
.WithBucket(bucket)
|
||
.WithRecursive(true);
|
||
// 预先生成本地文件索引（大幅减少 File.Exists 调用） 基于字典
|
||
var localFileIndex = await BuildLocalFileIndex(localDir);
|
||
//var x = policy.ExecuteAsync(() => Task.FromResult(_minioClient.ListObjectsEnumAsync(listArgs)));
|
||
var observable = _minioClient.ListObjectsEnumAsync(listArgs);
|
||
|
||
await foreach (var item in observable)
|
||
{
|
||
var index = item.Key.LastIndexOf("/", StringComparison.Ordinal);
|
||
if (index > 0)
|
||
{
|
||
var dir = Path.Combine(localDir, item.Key.Substring(0, index));
|
||
if (!Directory.Exists(dir))
|
||
{
|
||
Directory.CreateDirectory(dir);
|
||
}
|
||
}
|
||
|
||
producerTasks.Add(Task.Run(async () =>
|
||
{
|
||
var localPath = Path.Combine(localDir, item.Key.Replace('/', Path.DirectorySeparatorChar));
|
||
// 快速路径判断（存在性检查）
|
||
if (!localFileIndex.TryGetValue(localPath, out var localMeta))
|
||
{
|
||
// 如果不存在，则加入下载队列
|
||
await SyncChannel.Writer.WriteAsync((item.Key, item.ETag));
|
||
}
|
||
else
|
||
{
|
||
DateTime itemLastModified =
|
||
DateTime.Parse(item.LastModified, null, DateTimeStyles.RoundtripKind);
|
||
if ((ulong)localMeta.Size != item.Size || localMeta.LastModified < itemLastModified ||
|
||
!VerifyETag(localPath, item.ETag))
|
||
{
|
||
await SyncChannel.Writer.WriteAsync((item.Key, item.ETag));
|
||
}
|
||
}
|
||
}));
|
||
}
|
||
|
||
await Task.WhenAll(producerTasks);
|
||
SyncChannel.Writer.Complete(); // 关键步骤！
|
||
// 阶段2: 并行消费下载任务
|
||
var consumerTask = Task.Run(async () =>
|
||
{
|
||
await Parallel.ForEachAsync(SyncChannel.Reader.ReadAllAsync(),
|
||
new ParallelOptions { MaxDegreeOfParallelism = maxParallel },
|
||
async (item, _) =>
|
||
{
|
||
count++;
|
||
await DownLoadObject(bucket, item.ObjectName, localDir, item.ETag);
|
||
}
|
||
);
|
||
});
|
||
|
||
// 等待消费完成
|
||
await consumerTask;
|
||
Console.WriteLine($"{count}个文件下载完成");
|
||
}
|
||
|
||
/// <summary>
|
||
/// 构建本地文件内存索引（路径 → 元数据）
|
||
/// </summary>
|
||
/// <param name="rootDir"></param>
|
||
/// <returns></returns>
|
||
private async Task<ConcurrentDictionary<string, (long Size, DateTime LastModified)>> BuildLocalFileIndex(
|
||
string rootDir)
|
||
{
|
||
var index =
|
||
new ConcurrentDictionary<string, (long Size, DateTime LastModified)>(StringComparer.OrdinalIgnoreCase);
|
||
await Parallel.ForEachAsync(Directory.EnumerateFiles(rootDir, "*", SearchOption.AllDirectories),
|
||
async (path, _) =>
|
||
{
|
||
var info = new FileInfo(path);
|
||
index.TryAdd(path, (info.Length, info.LastWriteTimeUtc));
|
||
});
|
||
return index;
|
||
}
|
||
|
||
|
||
public async Task EnsureBucketExistsAsync(string bucketName)
|
||
{
|
||
var existsArgs = new BucketExistsArgs().WithBucket(bucketName);
|
||
var x = await _minioClient.BucketExistsAsync(existsArgs);
|
||
Console.WriteLine($" {bucketName} exist status: " + x);
|
||
// 如果存储桶不存在，则创建存储桶
|
||
if (!x)
|
||
{
|
||
var makeArgs = new MakeBucketArgs().WithBucket(bucketName);
|
||
await _minioClient.MakeBucketAsync(makeArgs);
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 上伟文件
|
||
/// </summary>
|
||
/// <param name="fileRecord"></param>
|
||
/*public async Task UploadFileAsync(FileRecord fileRecord)
|
||
{
|
||
var putArgs = new PutObjectArgs()
|
||
.WithBucket(_bucketName)
|
||
.WithObject(fileRecord.FileName)
|
||
.WithFileName(fileRecord.LocalPath)
|
||
// application/zip
|
||
.WithContentType("application/octet-stream");
|
||
await _minioClient.PutObjectAsync(putArgs);
|
||
}*/
|
||
|
||
/// <summary>
|
||
/// 列出存储桶内所有文件
|
||
/// </summary>
|
||
/// <param name="bucket"></param>
|
||
public async Task ListAllObject()
|
||
{
|
||
// Just list of objects
|
||
// Check whether 'mybucket' exists or not.
|
||
var existsArgs = new BucketExistsArgs().WithBucket(_bucketName);
|
||
bool found = await _minioClient.BucketExistsAsync(existsArgs);
|
||
if (found)
|
||
{
|
||
// List objects from 'my-bucketname'
|
||
ListObjectsArgs args = new ListObjectsArgs()
|
||
.WithBucket(_bucketName)
|
||
.WithRecursive(false);
|
||
// ListObjectsEnumAsync 新方法
|
||
var observable = _minioClient.ListObjectsEnumAsync(args);
|
||
|
||
var x = observable.GetAsyncEnumerator();
|
||
await x.MoveNextAsync();
|
||
Console.WriteLine(x.Current.Key);
|
||
Console.WriteLine(x.Current.Size);
|
||
Console.WriteLine(x.Current.ETag);
|
||
Console.WriteLine(x.Current.LastModified);
|
||
Console.WriteLine(x.Current.IsDir);
|
||
/*IDisposable subscription = observable.Subscribe(
|
||
item => Console.WriteLine("OnNext: {0}", item.Key),
|
||
ex => Console.WriteLine("OnError: {0}", ex.Message),
|
||
() => Console.WriteLine("OnComplete: {0}"));*/
|
||
}
|
||
else
|
||
{
|
||
Console.WriteLine("mybucket does not exist");
|
||
}
|
||
}
|
||
|
||
public async Task DownLoadObject(string bucketName, string objectKey, string localDir, string objectETag)
|
||
{
|
||
var index = objectKey.LastIndexOf("/", StringComparison.Ordinal);
|
||
if (index > 0)
|
||
{
|
||
var dir = Path.Combine(localDir, objectKey.Substring(0, index));
|
||
if (!Directory.Exists(dir))
|
||
{
|
||
Directory.CreateDirectory(dir);
|
||
}
|
||
}
|
||
|
||
var localPath = Path.Combine(localDir, objectKey.Replace('/', Path.DirectorySeparatorChar));
|
||
var getArgs = new GetObjectArgs()
|
||
.WithBucket(string.IsNullOrEmpty(bucketName) ? _bucketName : bucketName)
|
||
.WithObject(objectKey)
|
||
.WithFile(localPath);
|
||
await _minioClient.GetObjectAsync(getArgs);
|
||
if (VerifyETag(localPath, objectETag))
|
||
{
|
||
// todo 先忽略处理
|
||
}
|
||
|
||
Console.WriteLine($"{objectKey} Download complete");
|
||
}
|
||
|
||
// 差异检测：通过 ETag 和修改时间对比
|
||
private async Task<bool> NeedSyncAsync(string bucket, string objectName, string localPath)
|
||
{
|
||
if (!File.Exists(localPath)) return true;
|
||
|
||
var remoteMeta = await GetObjectMetadata(bucket, objectName);
|
||
var localInfo = new FileInfo(localPath);
|
||
|
||
return localInfo.Length != remoteMeta.Size ||
|
||
localInfo.LastWriteTimeUtc < remoteMeta.LastModified ||
|
||
!VerifyETag(localPath, remoteMeta.ETag);
|
||
}
|
||
|
||
// 获取远程对象元数据
|
||
public async Task<(long Size, DateTime LastModified, string ETag)> GetObjectMetadata(string bucket,
|
||
string objectName)
|
||
{
|
||
var args = new StatObjectArgs().WithBucket(bucket).WithObject(objectName);
|
||
var stat = await _minioClient.StatObjectAsync(args);
|
||
return (stat.Size, stat.LastModified, stat.ETag);
|
||
}
|
||
|
||
// 校验本地文件 ETag（MinIO 使用 MD5）
|
||
public bool VerifyETag(string filePath, string remoteETag)
|
||
{
|
||
using var md5 = MD5.Create();
|
||
using var stream = File.OpenRead(filePath);
|
||
var localHash = BitConverter.ToString(md5.ComputeHash(stream)).Replace("-", "").ToLower();
|
||
return remoteETag.Trim('"').Equals(localHash, StringComparison.OrdinalIgnoreCase);
|
||
}
|
||
|
||
// 实时监听方法
|
||
public async Task RealTimeListen(string bucketName, string localDir, string prefix = "", string suffix = "")
|
||
{
|
||
var downloadQueue =
|
||
Channel.CreateBounded<(string bucketName, string objectKey, string localDir, string objectETag)>(
|
||
new BoundedChannelOptions(1000)
|
||
{
|
||
FullMode = BoundedChannelFullMode.Wait
|
||
});
|
||
Task.Run(async () =>
|
||
{
|
||
await Parallel.ForEachAsync(downloadQueue.Reader.ReadAllAsync(),
|
||
new ParallelOptions { MaxDegreeOfParallelism = 5 },
|
||
async (item, _) =>
|
||
{
|
||
await DownLoadObject(item.bucketName, item.objectKey, item.localDir, item.objectETag);
|
||
});
|
||
});
|
||
try
|
||
{
|
||
var events = new List<EventType> { EventType.ObjectCreatedAll };
|
||
ListenBucketNotificationsArgs args = new ListenBucketNotificationsArgs()
|
||
.WithBucket(bucketName)
|
||
.WithEvents(events);
|
||
|
||
IObservable<MinioNotificationRaw> observable = _minioClient.ListenBucketNotificationsAsync(args);
|
||
IDisposable subscription = observable.Subscribe(
|
||
async notification =>
|
||
{
|
||
Console.WriteLine($"Received notification: {notification.Json}");
|
||
var obj = JObject.Parse(notification.Json);
|
||
// s3:ObjectCreated:Put
|
||
var eventType = obj["Records"]?[0]?["eventName"]?.Value<string>();
|
||
var objectSize = obj["Records"]?[0]?["s3"]?["object"]?["size"]?.Value<long>();
|
||
var objectKey = obj["Records"]?[0]?["s3"]?["object"]?["key"]?.Value<string>();
|
||
var objectETag = obj["Records"]?[0]?["s3"]?["object"]?["eTag"]?.Value<string>();
|
||
Console.WriteLine("将要下载的Key:" + objectKey);
|
||
downloadQueue.Writer.TryWrite((bucketName, objectKey, localDir, objectETag));
|
||
//await DownLoadObject(bucketName, objectKey, localDir, objectETag);
|
||
},
|
||
ex => Console.WriteLine($"OnError: {ex}"),
|
||
() => Console.WriteLine($"Stopped listening for bucket notifications\n"));
|
||
}
|
||
catch (MinioException e)
|
||
{
|
||
Console.WriteLine("Error occurred: " + e);
|
||
}
|
||
}
|
||
}
|
||
} |