justme
72a5e5b839
- new projects WebDrop.FileApi (file service), WebDrop.FileProtocol (shared tickets and receipts) and WebDrop.Sync (WebDAV) - file content of any size goes to the file service; chat, avatars and space structure stay on the main backend - tickets issued by the main backend, receipts by the file service, deletion queue and daily reconciliation - daily database snapshot and file sync to external storage (OpenList/WebDAV) with a 30 day retention - reorganize Core, Storage and Api into feature folders (namespaces unchanged) - web client uploads file frames to the file service and reads them with tickets
72 lines
3.1 KiB
C#
72 lines
3.1 KiB
C#
using System.IO.Compression;
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using Microsoft.Data.Sqlite;
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using Microsoft.Extensions.DependencyInjection;
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using static WebDrop.Api.Tests.ServerFixture;
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namespace WebDrop.Api.Tests;
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/// <summary>主后端每天把数据库快照压缩后传到外部存储(WebDAV),按保留期清理旧的。</summary>
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public sealed class BackupTests : IAsyncLifetime
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{
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private readonly FakeWebDav _dav = new();
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private ServerFixture _server = null!;
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public async Task InitializeAsync()
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{
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await _dav.StartAsync();
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_server = ServerFixture.WithSettings(new()
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{
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["WebDrop:Backup:WebDav:Url"] = _dav.Url,
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["WebDrop:Backup:WebDav:Username"] = FakeWebDav.User,
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["WebDrop:Backup:WebDav:Password"] = FakeWebDav.Password,
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["WebDrop:Backup:WebDav:BasePath"] = "webdrop",
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["WebDrop:Backup:RetainDays"] = "30",
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});
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await _server.InitializeAsync();
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}
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public async Task DisposeAsync()
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{
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await _server.DisposeAsync();
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await _dav.DisposeAsync();
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}
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[Fact]
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public async Task TheSnapshotIsAConsistentCompressedDatabaseAndOldOnesAreRetired()
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{
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var ch = await _server.CreateAsync();
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var worker = _server.App.Services.GetServices<Microsoft.Extensions.Hosting.IHostedService>().OfType<WebDrop.Api.BackupWorker>().Single();
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// 40 天前做的一份,和今天的一份
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var old = await worker.RunOnceAsync(DateTime.Now.AddDays(-40), CancellationToken.None);
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Assert.Equal(0, old.Purged);
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Assert.True(_dav.Files.ContainsKey($"webdrop/chat/{old.Name}"));
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var today = await worker.RunOnceAsync(DateTime.Now, CancellationToken.None);
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Assert.Equal(1, today.Purged); // 超过 30 天的那份被清掉
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Assert.False(_dav.Files.ContainsKey($"webdrop/chat/{old.Name}"));
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Assert.True(_dav.Files.ContainsKey($"webdrop/chat/{today.Name}"));
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// 备份能还原成数据库,里面有刚建的频道和账号
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string path = Path.Combine(Path.GetTempPath(), "restore-" + Guid.NewGuid().ToString("N") + ".db");
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try
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{
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using (var input = new MemoryStream(_dav.Files[$"webdrop/chat/{today.Name}"]))
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using (var zip = new GZipStream(input, CompressionMode.Decompress))
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using (var output = File.Create(path))
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zip.CopyTo(output);
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using var conn = new SqliteConnection($"Data Source={path};Mode=ReadOnly");
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conn.Open();
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using var count = conn.CreateCommand();
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count.CommandText = "SELECT (SELECT COUNT(*) FROM channels), (SELECT COUNT(*) FROM accounts)";
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using var reader = count.ExecuteReader();
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Assert.True(reader.Read());
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Assert.True(reader.GetInt64(0) >= 1 && reader.GetInt64(1) >= 2);
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}
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finally { SqliteConnection.ClearAllPools(); try { File.Delete(path); } catch (IOException) { } }
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// 本地不留临时文件
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Assert.Empty(Directory.EnumerateFiles(Path.Combine(_server.DataDir, "v2", "backup-tmp")));
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}
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}
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