Initial commit: WpywMail 自建邮件系统：.NET 8 原生 SMTP/IMAP 服务端（DKIM 签名、SPF/DKIM/DMARC 入站校验、SQLite 存储、完整账号体系）、Node 服务端、WinUI 3 客户端与 Web 前端
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WpyQwq
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using System.Security.Cryptography;
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using System.Text;
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namespace WpywMail.Native;
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/// <summary>
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/// 存储层自检：**同一套断言在 json 与 sqlite 两个后端上各跑一遍**，
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/// 保证两套实现语义一致（这样 Storage.Provider 才能真正做到一键切换/回滚）。
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/// </summary>
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public static partial class SelfTest
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{
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private static void TestStorageBackends()
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{
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foreach (var provider in new[] { "json", "sqlite" })
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{
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var config = new AppConfig
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{
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Domain = "wpy.email",
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Hostname = "mail.example.com",
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AdminEmail = "[email protected]",
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AdminPassword = "selftest-password-1234",
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DataDirectory = Path.Combine(Path.GetTempPath(), $"wpyw-store-{provider}-{Guid.NewGuid().ToString("N")[..8]}"),
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Dkim = new DkimConfig { Enabled = false },
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Storage = new StorageConfig { Provider = provider },
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};
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Directory.CreateDirectory(config.DataDirectory);
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try { RunStorageChecks(config, provider); }
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catch (Exception ex) { Fail($"[{provider}] 存储自检", $"抛出异常：{ex.Message}"); }
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finally { try { Directory.Delete(config.DataDirectory, true); } catch { } }
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}
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}
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private static void RunStorageChecks(AppConfig config, string provider)
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{
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using var store = Program.CreateStore(config);
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var admin = config.AdminEmail;
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Check($"[{provider}] 自动创建的管理员可认证", store.Authenticate(admin, config.AdminPassword) is not null, "");
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Check($"[{provider}] 错误口令被拒绝", store.Authenticate(admin, "wrong-password-1234") is null, "");
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Check($"[{provider}] 本地地址判定", store.IsLocalAddress(admin) && !store.IsLocalAddress("[email protected]"), "");
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// ---- 报文原文往返（逐字节）----
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var raw = Mime.Build(new ComposeRequest("张三 <[email protected]>", "张三", [admin], [],
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"存储自检：中文主题", "存储自检正文，包含中文与全角标点（）、——。"), config);
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var parsed = Mime.Parse(raw);
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var first = store.SaveMessage(new MailMessage
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{
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OwnerEmail = admin, Folder = "inbox", From = parsed.From, To = parsed.To, Subject = parsed.Subject,
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Text = parsed.Text, MessageId = parsed.MessageId, Date = DateTimeOffset.UtcNow, Unread = true,
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}, raw);
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var readBack = store.ReadRaw(first.RawPath);
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Check($"[{provider}] 报文原文逐字节读回", readBack.SequenceEqual(raw), $"{raw.Length} 字节");
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// ---- UID 单调 ----
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var second = store.SaveMessage(new MailMessage
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{
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OwnerEmail = admin, Folder = "inbox", From = "[email protected]", To = admin,
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Subject = "第二封", Text = "第二封正文", Date = DateTimeOffset.UtcNow.AddSeconds(1), Unread = true,
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}, raw);
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Check($"[{provider}] IMAP UID 同文件夹内递增", second.Uid == first.Uid + 1, $"{first.Uid} → {second.Uid}");
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Check($"[{provider}] 未读计数正确", store.CountUnseen(admin, "inbox") == 2, $"{store.CountUnseen(admin, "inbox")}");
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// ---- 标记已读 / 星标 / 统计 ----
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store.MarkRead(admin, first.Id, true);
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var unreadAfter = store.CountUnseen(admin, "inbox");
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var stats = store.Stats(admin);
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var inboxCount = (int)stats.GetType().GetProperty("inbox")!.GetValue(stats)!;
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var unreadCount = (int)stats.GetType().GetProperty("unread")!.GetValue(stats)!;
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Check($"[{provider}] 标记已读后未读数下降", unreadAfter == 1 && unreadCount == 1, $"{unreadAfter}/{unreadCount}");
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Check($"[{provider}] 统计的收件箱总数", inboxCount == 2, $"{inboxCount}");
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store.SetStar(admin, second.Id, true);
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var starred = (int)store.Stats(admin).GetType().GetProperty("starred")!.GetValue(store.Stats(admin))!;
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Check($"[{provider}] 星标计数", starred == 1, $"{starred}");
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// ---- 分页与搜索 ----
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var (total, page) = store.ListMessagesPage(admin, "inbox", "", false, false, 1, 0);
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Check($"[{provider}] 分页：总数与页大小", total == 2 && page.Count == 1, $"total={total} 页={page.Count}");
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var (unreadTotal, _) = store.ListMessagesPage(admin, "inbox", "", true, false, 10, 0);
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Check($"[{provider}] 分页：未读过滤", unreadTotal == 1, $"{unreadTotal}");
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var hits = store.ListMessages(admin, "", "存储自检正文");
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Check($"[{provider}] 中文正文搜索命中", hits.Count == 1, $"命中 {hits.Count}");
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var miss = store.ListMessages(admin, "", "绝对不存在的关键词xyzzy");
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Check($"[{provider}] 搜索不误报", miss.Count == 0, $"命中 {miss.Count}");
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// ---- 会话 ----
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var session = store.CreateSession(admin, 30);
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Check($"[{provider}] 会话创建与校验", store.GetSession(session.Token)?.Email == admin, "");
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store.RemoveSession(session.Token);
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Check($"[{provider}] 会话删除后失效", store.GetSession(session.Token) is null, "");
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// ---- 队列 ----
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var queued = store.QueueOutbound(admin, ["[email protected]"], "队列自检", "正文", raw);
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var due = store.TakeDueQueue(10);
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Check($"[{provider}] 出站任务入队并可取出", due.Count == 1 && due[0].MessageId == queued.Id, $"{due.Count} 条");
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if (due.Count > 0)
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{
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store.CompleteQueue(due[0]);
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var queueStats = (int)store.Stats(admin).GetType().GetProperty("queue")!.GetValue(store.Stats(admin))!;
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Check($"[{provider}] 完成后队列清空", queueStats == 0, $"{queueStats}");
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var sent = store.GetById(queued.Id)!;
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Check($"[{provider}] 发件箱状态更新为 sent", sent.DeliveryStatus == "sent", sent.DeliveryStatus);
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}
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// ---- 删除：inbox → trash → 永久 ----
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store.DeleteMessage(admin, first.Id, permanent: false);
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var moved = store.GetMessage(admin, first.Id);
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Check($"[{provider}] 删除先移入垃圾箱", moved?.Folder == "trash", moved?.Folder ?? "(null)");
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// 永久删除 + 原文回收：用一封**内容唯一**的报文来验证。
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// （不能拿 first 来验：它的字节被别的邮件/队列项共享，按内容去重后本就不该被回收。）
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var doomedRaw = Mime.Build(new ComposeRequest("[email protected]", "删除自检", [admin], [],
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"永久删除自检专用报文 " + Guid.NewGuid().ToString("N")[..8], "这封邮件的字节应当独一无二，删除后原文必须一起消失。"), config);
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var doomed = store.SaveMessage(new MailMessage
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{
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OwnerEmail = admin, Folder = "inbox", From = "[email protected]", To = admin,
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Subject = "永久删除自检", Text = "唯一内容", Date = DateTimeOffset.UtcNow.AddMinutes(1), Unread = false,
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}, doomedRaw);
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var doomedPath = doomed.RawPath;
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store.DeleteMessage(admin, doomed.Id, permanent: true);
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Check($"[{provider}] 永久删除后查不到", store.GetMessage(admin, doomed.Id) is null, "");
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Check($"[{provider}] 永久删除同时回收了原文", ThrowsOnMissing(() => store.ReadRaw(doomedPath)), doomedPath);
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// ---- 本地投递（同域收件人）----
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var delivered = store.DeliverLocal(admin, raw, "[email protected]");
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Check($"[{provider}] 本地投递入库为一封未读邮件", delivered is not null && delivered.Unread, "");
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// ---- 附件 ----
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var attachmentStore = store.SaveAttachment(Encoding.UTF8.GetBytes("附件内容"), "测试.txt");
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Check($"[{provider}] 附件写入并读回",
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Encoding.UTF8.GetString(store.ReadAttachment(attachmentStore)) == "附件内容", "");
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// ---- SQLite 专属：大对象按内容去重 ----
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if (store is SqliteStore)
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{
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var a = store.SaveRaw(raw);
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var b = store.SaveRaw(raw);
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Check("[sqlite] 相同报文内容按哈希去重（同一 blob）", a == b, $"{a} / {b}");
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var report = ((SqliteStore)store).StorageReport();
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Check("[sqlite] 大对象压缩生效（存储小于原文）",
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report.BlobStoredBytes > 0 && report.BlobStoredBytes < report.BlobRawBytes,
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$"{report.BlobRawBytes} → {report.BlobStoredBytes}");
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Check("[sqlite] 无孤儿大对象或可清理", report.Orphans == 0 || ((SqliteStore)store).Compact() >= 0,
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$"孤儿 {report.Orphans}");
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}
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// ---- 彻底删除账号（--purge-user 用的就是这一套；两个后端必须同一契约）
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var doomedUser = $"purge-{provider}@wpy.email";
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store.CreateUser(doomedUser, "Str0ng-Pass-2026", "待删账号");
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store.CreateSession(doomedUser, 30);
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store.SaveVerificationCode(new VerificationCode
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{
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Email = doomedUser, Purpose = "register",
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Salt = Convert.ToBase64String(RandomNumberGenerator.GetBytes(16)),
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CodeHash = Convert.ToBase64String(RandomNumberGenerator.GetBytes(32)),
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ExpiresAt = DateTimeOffset.UtcNow.AddMinutes(10), CreatedAt = DateTimeOffset.UtcNow,
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});
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var doomedMail = store.SaveMessage(new MailMessage
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{
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OwnerEmail = doomedUser, Folder = "inbox", From = "[email protected]", To = doomedUser,
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Subject = "待删账号的邮件", Text = "内容 " + Guid.NewGuid().ToString("N")[..8],
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Date = DateTimeOffset.UtcNow, Unread = true,
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}, null);
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foreach (var mail in store.ListMessages(doomedUser, "", "")) store.DeleteMessage(doomedUser, mail.Id, permanent: true);
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Check($"[{provider}] 删除账号前邮件确实属于它", store.GetMessage(doomedUser, doomedMail.Id) is null, "");
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Check($"[{provider}] 删除账号返回成功", store.DeleteUser(doomedUser), "");
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Check($"[{provider}] 删除后查不到账号", store.FindUserAnyState(doomedUser) is null, "");
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Check($"[{provider}] 删除后会话与验证码一并清掉",
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store.ListSessions(doomedUser).Count == 0 && store.FindVerificationCode(doomedUser, "register") is null, "");
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Check($"[{provider}] 重复删除返回 false（幂等）", !store.DeleteUser(doomedUser), "");
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}
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private static bool ThrowsOnMissing(Action action)
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{
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try { action(); return false; }
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catch { return true; }
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}
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}
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