fix(subscription): prevent duplicate qb downloads

internal/handler/active_user.go

@@ -0,0 +1,57 @@
+package handler
+
+import (
+	"net/http"
+	"time"
+
+	"github.com/gin-gonic/gin"
+
+	"github.com/ShukeBta/MediaStationGo/internal/middleware"
+	"github.com/ShukeBta/MediaStationGo/internal/service"
+)
+
+func activeUserRequired(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		uid, _ := c.Get(middleware.CtxUserID)
+		userID, _ := uid.(string)
+		if userID == "" {
+			c.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{"code": 40101, "message": "missing user"})
+			return
+		}
+		u, err := svc.Repo.User.FindByID(c.Request.Context(), userID)
+		if err != nil || u == nil {
+			c.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{"code": 40101, "message": "user not found"})
+			return
+		}
+		if !u.IsActive {
+			c.AbortWithStatusJSON(http.StatusForbidden, gin.H{"code": 40302, "message": "user account is disabled"})
+			return
+		}
+		if u.ExpiredAt != nil && time.Now().After(*u.ExpiredAt) {
+			c.AbortWithStatusJSON(http.StatusForbidden, gin.H{"code": 40303, "message": "user account has expired"})
+			return
+		}
+		c.Next()
+	}
+}
+
+func activeEmbyUserRequired(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		uid, _ := c.Get(middleware.CtxUserID)
+		userID, _ := uid.(string)
+		u, err := svc.Repo.User.FindByID(c.Request.Context(), userID)
+		if userID == "" || err != nil || u == nil {
+			c.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{"Code": 40101, "Message": "User not found"})
+			return
+		}
+		if !u.IsActive {
+			c.AbortWithStatusJSON(http.StatusForbidden, gin.H{"Code": 40302, "Message": "User account is disabled"})
+			return
+		}
+		if u.ExpiredAt != nil && time.Now().After(*u.ExpiredAt) {
+			c.AbortWithStatusJSON(http.StatusForbidden, gin.H{"Code": 40303, "Message": "User account has expired"})
+			return
+		}
+		c.Next()
+	}
+}

internal/handler/admin.go

@@ -67,6 +67,10 @@ type adminResetPasswordReq struct {
 	Password string `json:"password" binding:"required,min=6"`
 }
 
+type adminUpdateUserStatusReq struct {
+	IsActive bool `json:"is_active"`
+}
+
 func updateUserHandler(svc *service.Container) gin.HandlerFunc {
 	return func(c *gin.Context) {
 		var req adminUpdateUserReq
@@ -151,6 +155,46 @@ func resetUserPasswordHandler(svc *service.Container) gin.HandlerFunc {
 	}
 }
 
+func updateUserStatusHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		var req adminUpdateUserStatusReq
+		if err := c.ShouldBindJSON(&req); err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+			return
+		}
+		userID := c.Param("id")
+		if !req.IsActive {
+			if firstAdmin, err := svc.Repo.User.FirstAdmin(c.Request.Context()); err != nil {
+				c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+				return
+			} else if firstAdmin != nil && firstAdmin.ID == userID {
+				c.JSON(http.StatusForbidden, gin.H{"error": "default admin cannot be disabled"})
+				return
+			}
+		}
+		updates := map[string]any{"is_active": req.IsActive}
+		if req.IsActive {
+			updates["share_warnings"] = 0
+			updates["last_share_warn_at"] = nil
+		}
+		if err := svc.Repo.User.UpdateFields(c.Request.Context(), userID, updates); err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		if req.IsActive {
+			_ = svc.Repo.UserDevice.SetKickedByUser(c.Request.Context(), userID, false)
+		} else {
+			_ = svc.Repo.UserDevice.SetKickedByUser(c.Request.Context(), userID, true)
+		}
+		updated, err := svc.Repo.User.FindByID(c.Request.Context(), userID)
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, updated)
+	}
+}
+
 func annotateProtectedUsers(ctx context.Context, svc *service.Container, users []model.User) error {
 	firstAdmin, err := svc.Repo.User.FirstAdmin(ctx)
 	if err != nil || firstAdmin == nil {

internal/handler/downloads.go

@@ -3,6 +3,7 @@ package handler
 
 import (
 	"context"
+	"errors"
 	"net/http"
 	"net/url"
 	"strings"
@@ -73,6 +74,10 @@ func addDownloadHandler(svc *service.Container) gin.HandlerFunc {
 		}, fallbackTitle, "")
 		t, err := svc.Downloads.AddDownloadWithMeta(c.Request.Context(), uid.(string), realURL, req.SavePath, meta)
 		if err != nil {
+			if errors.Is(err, service.ErrDownloadAlreadyExists) {
+				c.JSON(http.StatusOK, t)
+				return
+			}
 			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
 			return
 		}

internal/handler/emby.go

@@ -779,7 +779,7 @@ func registerEmbyRoutes(r *gin.Engine, jwtSecret string, svc *service.Container)
 		grp.HEAD("/Items/:id/Images/:type", embyItemImageHandler(svc))
 
 		// 鉴权后端点
-		auth := grp.Group("", middleware.EmbyAuthRequired(jwtSecret))
+		auth := grp.Group("", middleware.EmbyAuthRequired(jwtSecret), activeEmbyUserRequired(svc))
 		auth.GET("/Users/Me", embyMeHandler(svc))
 		auth.GET("/Users", embyListUsersHandler(svc))
 		auth.GET("/Users/:userId", embyGetUserByIDHandler(svc))

internal/handler/emby_test.go

@@ -92,10 +92,20 @@ func TestEmbyVirtualFoldersRouteReturnsJSON(t *testing.T) {
 	if err != nil {
 		t.Fatalf("open db: %v", err)
 	}
-	if err := db.AutoMigrate(&model.Library{}); err != nil {
+	if err := db.AutoMigrate(&model.User{}, &model.Library{}); err != nil {
 		t.Fatalf("migrate: %v", err)
 	}
 	repos := repository.New(db)
+	if err := repos.User.Create(t.Context(), &model.User{
+		Base:         model.Base{ID: "user-1"},
+		Username:     "tester",
+		PasswordHash: "x",
+		Role:         "admin",
+		Tier:         "plus",
+		IsActive:     true,
+	}); err != nil {
+		t.Fatalf("create user: %v", err)
+	}
 	for _, lib := range []model.Library{
 		{Name: "电影", Path: "D:\\media\\movies", Type: "movie", Enabled: true},
 		{Name: "剧集", Path: "D:\\media\\tv", Type: "tv", Enabled: true},
@@ -201,10 +211,20 @@ func TestEmbyUserItemByIDRouteReturnsJSON(t *testing.T) {
 	if err != nil {
 		t.Fatalf("open db: %v", err)
 	}
-	if err := db.AutoMigrate(&model.Library{}, &model.Media{}, &model.Favorite{}, &model.PlaybackHistory{}); err != nil {
+	if err := db.AutoMigrate(&model.User{}, &model.Library{}, &model.Media{}, &model.Favorite{}, &model.PlaybackHistory{}); err != nil {
 		t.Fatalf("migrate: %v", err)
 	}
 	repos := repository.New(db)
+	if err := repos.User.Create(t.Context(), &model.User{
+		Base:         model.Base{ID: "user-1"},
+		Username:     "tester",
+		PasswordHash: "x",
+		Role:         "admin",
+		Tier:         "plus",
+		IsActive:     true,
+	}); err != nil {
+		t.Fatalf("create user: %v", err)
+	}
 	lib := model.Library{Name: "剧集", Path: "D:\\media\\tv", Type: "tv", Enabled: true}
 	if err := repos.Library.Create(t.Context(), &lib); err != nil {
 		t.Fatalf("create library: %v", err)

internal/handler/handler.go

@@ -50,6 +50,7 @@ func Register(r *gin.Engine, cfg *config.Config, log *zap.Logger, svc *service.C
 		// Authenticated endpoints.
 		authed := api.Group("/")
 		authed.Use(middleware.AuthRequired(cfg.Secrets.JWTSecret))
+		authed.Use(activeUserRequired(svc))
 		{
 			authed.GET("/me", meHandler(svc))
 			authed.PATCH("/me", updateProfileHandler(svc))
@@ -298,6 +299,7 @@ func Register(r *gin.Engine, cfg *config.Config, log *zap.Logger, svc *service.C
 			admin.POST("/users", createUserHandler(svc))
 			admin.PATCH("/users/:id", updateUserHandler(svc))
 			admin.PATCH("/users/:id/password", resetUserPasswordHandler(svc))
+			admin.PATCH("/users/:id/status", updateUserStatusHandler(svc))
 			admin.PATCH("/users/:id/role", adminUpdateRoleHandler(svc))
 			admin.DELETE("/users/:id", deleteUserHandler(svc))
 			admin.GET("/settings", listSettingsHandler(svc))

internal/handler/refresh_handler.go

@@ -47,6 +47,10 @@ func (h *RefreshHandler) RefreshToken(c *gin.Context) {
 			c.JSON(http.StatusUnauthorized, gin.H{"code": 40102, "message": "refresh token expired", "data": nil})
 		case service.ErrTokenRevoked:
 			c.JSON(http.StatusUnauthorized, gin.H{"code": 40103, "message": "refresh token revoked", "data": nil})
+		case service.ErrUserInactive:
+			c.JSON(http.StatusForbidden, gin.H{"code": 40302, "message": "user account is disabled", "data": nil})
+		case service.ErrUserExpired:
+			c.JSON(http.StatusForbidden, gin.H{"code": 40303, "message": "user account has expired", "data": nil})
 		default:
 			c.JSON(http.StatusInternalServerError, gin.H{"code": 50001, "message": "internal error", "data": nil})
 		}
@@ -54,7 +58,7 @@ func (h *RefreshHandler) RefreshToken(c *gin.Context) {
 	}
 
 	c.JSON(http.StatusOK, gin.H{
-		"code": 0,
+		"code":    0,
 		"message": "ok",
 		"data": gin.H{
 			"token":         tokens.AccessToken,

internal/model/model.go

@@ -48,9 +48,9 @@ type User struct {
 	// expires. When set and in the past, the account is treated as expired
 	// (login blocked) until an admin or a redemption code renews it.
 	ExpiredAt *time.Time `json:"expired_at,omitempty"`
-	// ShareWarnings counts anti-account-sharing warnings (too many concurrent
-	// playbacks / logged-in clients / device-fingerprint mismatches). Once it
-	// exceeds the configured threshold a re-offence deletes the account.
+	// ShareWarnings counts anti-account-sharing warnings, mainly device
+	// fingerprint mismatches. Once it exceeds the configured threshold a
+	// re-offence disables the account until an admin re-enables it.
 	ShareWarnings   int        `gorm:"default:0" json:"share_warnings"`
 	LastShareWarnAt *time.Time `json:"last_share_warn_at,omitempty"`
 	IsDefaultAdmin  bool       `gorm:"-" json:"is_default_admin,omitempty"`

internal/repository/bot_repo.go

@@ -164,6 +164,12 @@ func (r *UserDeviceRepository) SetKicked(ctx context.Context, id string, kicked
 		Update("kicked", kicked).Error
 }
 
+// SetKickedByUser marks every device for a user as kicked/un-kicked.
+func (r *UserDeviceRepository) SetKickedByUser(ctx context.Context, userID string, kicked bool) error {
+	return r.db.WithContext(ctx).Model(&model.UserDevice{}).Where("user_id = ?", userID).
+		Update("kicked", kicked).Error
+}
+
 // WatchedMillisSince approximates the total watched milliseconds for a user
 // since `since`, using the last known playback position per media. Playback
 // history keeps one row per (user, media), so this is an activity proxy rather

internal/service/bot_features_test.go

@@ -247,14 +247,17 @@ func TestProtectedAdminNeverViolated(t *testing.T) {
 	}
 	_ = repos.Setting.Set(ctx, SettingAntiShareEnabled, "true")
 	cfg := loadBotConfig(ctx, repos)
-	// 多次违规也不应删除/警告管理员
+	// 多次违规也不应删除/警告/禁用管理员
 	for i := 0; i < 5; i++ {
-		dev.registerViolation(ctx, admin.ID, "test", cfg)
+		dev.registerFingerprintWarning(ctx, admin.ID, "test", cfg)
 	}
 	got, _ := repos.User.FindByID(ctx, admin.ID)
 	if got == nil {
 		t.Fatal("admin must never be auto-deleted")
 	}
+	if !got.IsActive {
+		t.Fatal("admin must never be auto-disabled")
+	}
 	if got.ShareWarnings != 0 {
 		t.Fatalf("admin should accrue no warnings, got %d", got.ShareWarnings)
 	}

internal/service/bot_settings.go

@@ -2,7 +2,9 @@ package service
 
 import (
 	"context"
+	"encoding/json"
 	"strconv"
+	"strings"
 
 	"github.com/ShukeBta/MediaStationGo/internal/repository"
 )
@@ -29,6 +31,13 @@ const (
 	SettingInactiveWindowMin = "device.inactive_window_days_min" // 随机窗口下限（天）
 	SettingInactiveWindowMax = "device.inactive_window_days_max" // 随机窗口上限（天）
 	SettingInactiveGraceDays = "device.inactive_grace_days"      // 新号宽限期（天）
+
+	// 自定义删号/保号规则。规则默认关闭；开启后按 KeepMode 计算用户
+	// 是否满足足够的保号条件，未满足才会删号。
+	SettingAccountCleanupEnabled       = "device.account_cleanup_enabled"
+	SettingAccountCleanupKeepMode      = "device.account_cleanup_keep_mode"      // any / all / count
+	SettingAccountCleanupRequiredCount = "device.account_cleanup_required_count" // keep_mode=count 时需要满足几条
+	SettingAccountCleanupRules         = "device.account_cleanup_rules"          // JSON []accountCleanupRule
 )
 
 // botConfig 是设备管控的已解析配置（含默认值）。
@@ -45,6 +54,31 @@ type botConfig struct {
 	InactiveWindowMin int
 	InactiveWindowMax int
 	InactiveGraceDays int
+
+	AccountCleanupEnabled       bool
+	AccountCleanupKeepMode      string
+	AccountCleanupRequiredCount int
+	AccountCleanupRules         []accountCleanupRule
+}
+
+// accountCleanupRule is one admin-defined "保号" condition. A user is deleted
+// only when the cleanup policy is enabled and the user does not satisfy the
+// configured combination of enabled keep rules.
+//
+// Supported types:
+//   - watch_hours: watched hours in a random [min,max] day window >= MinHours
+//   - recent_login: LastLoginAt is within WindowDaysMax days
+//   - signin_streak: current sign-in streak >= MinCount
+//   - account_age_grace: account age <= MinCount days (new-user grace)
+type accountCleanupRule struct {
+	ID            string  `json:"id"`
+	Name          string  `json:"name"`
+	Type          string  `json:"type"`
+	Enabled       bool    `json:"enabled"`
+	WindowDaysMin int     `json:"window_days_min,omitempty"`
+	WindowDaysMax int     `json:"window_days_max,omitempty"`
+	MinHours      float64 `json:"min_hours,omitempty"`
+	MinCount      int     `json:"min_count,omitempty"`
 }
 
 // defaultBotConfig returns the safe defaults requested by the operator.
@@ -62,6 +96,21 @@ func defaultBotConfig() botConfig {
 		InactiveWindowMin: 3,
 		InactiveWindowMax: 5,
 		InactiveGraceDays: 7,
+
+		AccountCleanupEnabled:       false,
+		AccountCleanupKeepMode:      "any",
+		AccountCleanupRequiredCount: 1,
+		AccountCleanupRules: []accountCleanupRule{
+			{
+				ID:            "watch_3_5d_6h",
+				Name:          "3~5 天观看满 6 小时",
+				Type:          "watch_hours",
+				Enabled:       true,
+				WindowDaysMin: 3,
+				WindowDaysMax: 5,
+				MinHours:      6,
+			},
+		},
 	}
 }
 
@@ -87,9 +136,21 @@ func loadBotConfig(ctx context.Context, repo *repository.Container) botConfig {
 	cfg.InactiveWindowMin = parseIntSettingDefault(get(SettingInactiveWindowMin), cfg.InactiveWindowMin)
 	cfg.InactiveWindowMax = parseIntSettingDefault(get(SettingInactiveWindowMax), cfg.InactiveWindowMax)
 	cfg.InactiveGraceDays = parseIntSettingDefault(get(SettingInactiveGraceDays), cfg.InactiveGraceDays)
+	cfg.AccountCleanupEnabled = parseBoolSetting(get(SettingAccountCleanupEnabled), cfg.AccountCleanupEnabled)
+	cfg.AccountCleanupKeepMode = normalizeCleanupKeepMode(get(SettingAccountCleanupKeepMode), cfg.AccountCleanupKeepMode)
+	cfg.AccountCleanupRequiredCount = parseIntSettingDefault(get(SettingAccountCleanupRequiredCount), cfg.AccountCleanupRequiredCount)
+	if raw := strings.TrimSpace(get(SettingAccountCleanupRules)); raw != "" {
+		var rules []accountCleanupRule
+		if err := json.Unmarshal([]byte(raw), &rules); err == nil && len(rules) > 0 {
+			cfg.AccountCleanupRules = normalizeCleanupRules(rules)
+		}
+	}
 	if cfg.InactiveWindowMax < cfg.InactiveWindowMin {
 		cfg.InactiveWindowMax = cfg.InactiveWindowMin
 	}
+	if cfg.AccountCleanupRequiredCount < 1 {
+		cfg.AccountCleanupRequiredCount = 1
+	}
 	return cfg
 }
 
@@ -101,3 +162,47 @@ func parseIntSettingDefault(value string, fallback int) int {
 	}
 	return n
 }
+
+func normalizeCleanupKeepMode(value, fallback string) string {
+	switch strings.ToLower(strings.TrimSpace(value)) {
+	case "any", "all", "count":
+		return strings.ToLower(strings.TrimSpace(value))
+	default:
+		if fallback == "" {
+			return "any"
+		}
+		return fallback
+	}
+}
+
+func normalizeCleanupRules(rules []accountCleanupRule) []accountCleanupRule {
+	out := make([]accountCleanupRule, 0, len(rules))
+	for _, r := range rules {
+		r.Type = strings.ToLower(strings.TrimSpace(r.Type))
+		r.ID = strings.TrimSpace(r.ID)
+		r.Name = strings.TrimSpace(r.Name)
+		if r.ID == "" {
+			r.ID = r.Type
+		}
+		if r.Name == "" {
+			r.Name = r.ID
+		}
+		if r.WindowDaysMin < 1 {
+			r.WindowDaysMin = 1
+		}
+		if r.WindowDaysMax < r.WindowDaysMin {
+			r.WindowDaysMax = r.WindowDaysMin
+		}
+		if r.MinCount < 0 {
+			r.MinCount = 0
+		}
+		if r.MinHours < 0 {
+			r.MinHours = 0
+		}
+		switch r.Type {
+		case "watch_hours", "recent_login", "signin_streak", "account_age_grace":
+			out = append(out, r)
+		}
+	}
+	return out
+}

internal/service/device_service.go

@@ -18,16 +18,15 @@ import (
 // DeviceService implements device/session tracking and the two decoupled
 // enforcement policies requested by the operator:
 //
-//	① 防共享 (anti-sharing, warning-based): too many concurrent playbacks,
-//	   too many logged-in clients, or a device-fingerprint mismatch each emit a
-//	   warning. After the configured number of warnings, a re-offence deletes
-//	   the account. These three sub-rules share one per-user warning counter.
-//	② 不活跃清理 (inactivity cleanup, independent toggle): watching less than
-//	   the configured hours over a random 3–5 day window deletes the account.
+//	① 防共享: too many concurrent playbacks / logged-in clients disables the
+//	   account immediately; fingerprint mismatch is warning-based and disables
+//	   the account after the configured warning threshold.
+//	② 自定义删号/保号规则: admins define one or more keep rules; a sweep deletes
+//	   accounts that do not satisfy the configured any/all/count rule set.
 //
-// Safeguards (always enforced): admin / protected accounts are never auto
-// disabled or deleted; a Telegram notification is sent before any destructive
-// action; every threshold is configurable and both policies default to OFF.
+// Safeguards: admin / protected accounts are never auto disabled or deleted;
+// a Telegram notification is sent before a destructive action; every policy
+// defaults to OFF.
 type DeviceService struct {
 	log  *zap.Logger
 	repo *repository.Container
@@ -116,12 +115,12 @@ func (s *DeviceService) RecordLogin(ctx context.Context, userID, deviceID, devic
 	}
 
 	if mismatch {
-		s.registerViolation(ctx, userID, fmt.Sprintf("设备指纹变更（设备：%s）", deviceLabel(deviceName, client)), cfg)
+		s.registerFingerprintWarning(ctx, userID, fmt.Sprintf("设备指纹变更（设备：%s）", deviceLabel(deviceName, client)), cfg)
 		return
 	}
 	since := now.Add(-time.Duration(cfg.ClientActiveDays) * 24 * time.Hour)
 	if n, err := s.repo.UserDevice.CountActiveClients(ctx, userID, since); err == nil && int(n) > cfg.MaxLoggedClients {
-		s.registerViolation(ctx, userID, fmt.Sprintf("同时登录客户端 %d 台，超过上限 %d 台", n, cfg.MaxLoggedClients), cfg)
+		s.disableForPolicy(ctx, userID, fmt.Sprintf("同时登录客户端 %d 台，超过上限 %d 台", n, cfg.MaxLoggedClients))
 	}
 }
 
@@ -160,15 +159,14 @@ func (s *DeviceService) RecordPlayback(ctx context.Context, userID, deviceID, de
 	}
 	since := now.Add(-time.Duration(cfg.PlayWindowSeconds) * time.Second)
 	if n, err := s.repo.UserDevice.CountConcurrentPlaying(ctx, userID, since); err == nil && int(n) > cfg.MaxConcurrentPlay {
-		s.registerViolation(ctx, userID, fmt.Sprintf("同时播放 %d 台，超过上限 %d 台", n, cfg.MaxConcurrentPlay), cfg)
+		s.disableForPolicy(ctx, userID, fmt.Sprintf("同时播放设备 %d 台，超过上限 %d 台", n, cfg.MaxConcurrentPlay))
 	}
 }
 
-// registerViolation increments the shared anti-share warning counter for a
-// user, notifies them, and deletes the account once warnings exceed the
-// threshold. Protected accounts are never auto-deleted. Violations are
-// debounced so a single burst counts at most once per minute.
-func (s *DeviceService) registerViolation(ctx context.Context, userID, reason string, cfg botConfig) {
+// registerFingerprintWarning increments the fingerprint warning counter for a
+// user and disables the account once warnings exceed the threshold. Violations
+// are debounced so a single burst counts at most once per minute.
+func (s *DeviceService) registerFingerprintWarning(ctx context.Context, userID, reason string, cfg botConfig) {
 	u, err := s.repo.User.FindByID(ctx, userID)
 	if err != nil || u == nil {
 		return
@@ -184,12 +182,9 @@ func (s *DeviceService) registerViolation(ctx context.Context, userID, reason st
 
 	warnings := u.ShareWarnings + 1
 	if warnings > cfg.WarnThreshold {
-		// Exhausted warnings → delete (notify first).
-		s.notify(ctx, userID, fmt.Sprintf("⛔️ 账号 <b>%s</b> 因多次触发防共享规则（%s）已被删除。如有疑问请联系管理员。", u.Username, reason))
-		s.log.Warn("anti-share: deleting account after warnings",
+		s.disableForPolicy(ctx, userID, fmt.Sprintf("多次设备指纹异常：%s", reason))
+		s.log.Warn("anti-share: disabling account after fingerprint warnings",
 			zap.String("user", u.Username), zap.Int("warnings", u.ShareWarnings), zap.String("reason", reason))
-		_ = s.repo.UserDevice.DeleteByUser(ctx, userID)
-		_ = s.repo.User.Delete(ctx, userID)
 		return
 	}
 	_ = s.repo.User.UpdateFields(ctx, userID, map[string]any{
@@ -197,24 +192,43 @@ func (s *DeviceService) registerViolation(ctx context.Context, userID, reason st
 		"last_share_warn_at": &now,
 	})
 	left := cfg.WarnThreshold + 1 - warnings
-	s.notify(ctx, userID, fmt.Sprintf("⚠️ 账号 <b>%s</b> 触发防共享规则：%s\n这是第 <b>%d</b> 次警告，再违规 <b>%d</b> 次将删除账号。请使用 Bot 的「我的设备」一键踢下线多余设备。", u.Username, reason, warnings, left))
+	s.notify(ctx, userID, fmt.Sprintf("⚠️ 账号 <b>%s</b> 触发设备指纹警告：%s\n这是第 <b>%d</b> 次警告，再异常 <b>%d</b> 次将禁用账号。请使用 Bot 的「我的设备」踢下线异常设备。", u.Username, reason, warnings, left))
 	s.log.Info("anti-share: warning issued", zap.String("user", u.Username), zap.Int("warnings", warnings), zap.String("reason", reason))
 }
 
-// SweepInactiveUsers runs the inactivity cleanup policy once. It picks a random
-// window in [min,max] days, then deletes non-protected users (past their grace
-// period) who watched less than the configured hours in that window. Returns
-// the number of accounts removed. No-op when the policy is disabled.
+func (s *DeviceService) disableForPolicy(ctx context.Context, userID, reason string) {
+	u, err := s.repo.User.FindByID(ctx, userID)
+	if err != nil || u == nil || !u.IsActive {
+		return
+	}
+	if s.isProtected(ctx, u) {
+		s.log.Info("device policy: skipping protected account", zap.String("user", u.Username), zap.String("reason", reason))
+		return
+	}
+	now := time.Now()
+	_ = s.repo.User.UpdateFields(ctx, userID, map[string]any{
+		"is_active":          false,
+		"last_share_warn_at": &now,
+	})
+	_ = s.repo.UserDevice.SetKickedByUser(ctx, userID, true)
+	s.notify(ctx, userID, fmt.Sprintf("⛔️ 账号 <b>%s</b> 因触发设备规则已被禁用：%s\n请联系管理员解除禁用，或通过「我的设备」踢下线多余设备后再申请恢复。", u.Username, reason))
+	s.log.Warn("device policy: disabled account", zap.String("user", u.Username), zap.String("reason", reason))
+}
+
+// SweepInactiveUsers is kept for compatibility with the existing scheduler; it
+// now delegates to the custom account-cleanup policy.
 func (s *DeviceService) SweepInactiveUsers(ctx context.Context) (int, error) {
+	return s.SweepAccountCleanup(ctx)
+}
+
+// SweepAccountCleanup runs the admin-defined account cleanup policy once.
+// Users are kept when they satisfy enough enabled keep rules according to
+// keep_mode: any / all / count. Users that do not meet the policy are deleted.
+func (s *DeviceService) SweepAccountCleanup(ctx context.Context) (int, error) {
 	cfg := loadBotConfig(ctx, s.repo)
-	if !cfg.InactiveEnabled {
+	if !cfg.AccountCleanupEnabled {
 		return 0, nil
 	}
-	windowDays := randomWindowDays(cfg.InactiveWindowMin, cfg.InactiveWindowMax)
-	since := time.Now().Add(-time.Duration(windowDays) * 24 * time.Hour)
-	graceCutoff := time.Now().Add(-time.Duration(cfg.InactiveGraceDays) * 24 * time.Hour)
-	minMs := int64(cfg.InactiveMinHours) * 3600 * 1000
-
 	users, err := s.repo.User.List(ctx)
 	if err != nil {
 		return 0, err
@@ -225,19 +239,12 @@ func (s *DeviceService) SweepInactiveUsers(ctx context.Context) (int, error) {
 		if s.isProtected(ctx, u) || !u.IsActive {
 			continue
 		}
-		if u.CreatedAt.After(graceCutoff) {
-			continue // still within new-account grace period
-		}
-		watched, err := s.repo.UserDevice.WatchedMillisSince(ctx, u.ID, since)
-		if err != nil {
+		keep, details := s.userMatchesCleanupPolicy(ctx, u, cfg)
+		if keep {
 			continue
 		}
-		if watched >= minMs {
-			continue // active enough → keep
-		}
-		s.notify(ctx, u.ID, fmt.Sprintf("⛔️ 账号 <b>%s</b> 因近 %d 天观看时长不足 %d 小时（不活跃）已被清理。如需恢复请联系管理员。", u.Username, windowDays, cfg.InactiveMinHours))
-		s.log.Warn("inactivity: deleting inactive account",
-			zap.String("user", u.Username), zap.Int("window_days", windowDays), zap.Int64("watched_ms", watched))
+		s.notify(ctx, u.ID, fmt.Sprintf("⛔️ 账号 <b>%s</b> 未满足保号规则，已被清理。\n规则结果：%s\n如需恢复请联系管理员。", u.Username, details))
+		s.log.Warn("account cleanup: deleting account", zap.String("user", u.Username), zap.String("details", details))
 		_ = s.repo.UserDevice.DeleteByUser(ctx, u.ID)
 		if err := s.repo.User.Delete(ctx, u.ID); err == nil {
 			removed++
@@ -259,6 +266,11 @@ func (s *DeviceService) KickDevice(ctx context.Context, userID, deviceID string)
 	return s.repo.UserDevice.SetKicked(ctx, d.ID, true)
 }
 
+// KickAllDevices marks all devices for a user as kicked.
+func (s *DeviceService) KickAllDevices(ctx context.Context, userID string) error {
+	return s.repo.UserDevice.SetKickedByUser(ctx, userID, true)
+}
+
 // ListDevices returns the device sessions for a user.
 func (s *DeviceService) ListDevices(ctx context.Context, userID string) ([]model.UserDevice, error) {
 	return s.repo.UserDevice.ListByUser(ctx, userID)
@@ -295,6 +307,76 @@ func randomWindowDays(min, max int) int {
 	return min + rand.Intn(max-min+1)
 }
 
+func (s *DeviceService) userMatchesCleanupPolicy(ctx context.Context, u *model.User, cfg botConfig) (bool, string) {
+	rules := make([]accountCleanupRule, 0, len(cfg.AccountCleanupRules))
+	for _, r := range cfg.AccountCleanupRules {
+		if r.Enabled {
+			rules = append(rules, r)
+		}
+	}
+	if len(rules) == 0 {
+		return true, "无启用规则，跳过"
+	}
+	matches := 0
+	parts := make([]string, 0, len(rules))
+	for _, r := range rules {
+		ok, detail := s.userMatchesCleanupRule(ctx, u, r)
+		if ok {
+			matches++
+			parts = append(parts, "✅ "+detail)
+		} else {
+			parts = append(parts, "❌ "+detail)
+		}
+	}
+	required := 1
+	switch cfg.AccountCleanupKeepMode {
+	case "all":
+		required = len(rules)
+	case "count":
+		required = cfg.AccountCleanupRequiredCount
+		if required > len(rules) {
+			required = len(rules)
+		}
+	default:
+		required = 1
+	}
+	return matches >= required, fmt.Sprintf("满足 %d/%d 条，需要 %d 条；%s", matches, len(rules), required, strings.Join(parts, "；"))
+}
+
+func (s *DeviceService) userMatchesCleanupRule(ctx context.Context, u *model.User, r accountCleanupRule) (bool, string) {
+	switch r.Type {
+	case "watch_hours":
+		windowDays := randomWindowDays(r.WindowDaysMin, r.WindowDaysMax)
+		since := time.Now().Add(-time.Duration(windowDays) * 24 * time.Hour)
+		watched, _ := s.repo.UserDevice.WatchedMillisSince(ctx, u.ID, since)
+		hours := float64(watched) / 3600000
+		return hours >= r.MinHours, fmt.Sprintf("%s：近 %d 天观看 %.1f/%.1f 小时", r.Name, windowDays, hours, r.MinHours)
+	case "recent_login":
+		days := r.WindowDaysMax
+		if days < 1 {
+			days = r.WindowDaysMin
+		}
+		ok := u.LastLoginAt != nil && u.LastLoginAt.After(time.Now().Add(-time.Duration(days)*24*time.Hour))
+		return ok, fmt.Sprintf("%s：%d 天内登录", r.Name, days)
+	case "signin_streak":
+		rec, _ := s.repo.SignIn.Get(ctx, u.ID)
+		streak := 0
+		if rec != nil {
+			streak = rec.StreakDays
+		}
+		return streak >= r.MinCount, fmt.Sprintf("%s：连续签到 %d/%d 天", r.Name, streak, r.MinCount)
+	case "account_age_grace":
+		days := r.MinCount
+		if days < 1 {
+			days = r.WindowDaysMax
+		}
+		ok := u.CreatedAt.After(time.Now().Add(-time.Duration(days) * 24 * time.Hour))
+		return ok, fmt.Sprintf("%s：新账号 %d 天宽限", r.Name, days)
+	default:
+		return false, r.Name + "：未知规则"
+	}
+}
+
 func deviceLabel(name, client string) string {
 	name = strings.TrimSpace(name)
 	client = strings.TrimSpace(client)

internal/service/downloads.go

@@ -50,6 +50,11 @@ type DownloadService struct {
 
 var torrentEpisodeToken = regexp.MustCompile(`(?i)e\d{1,3}`)
 
+// ErrDownloadAlreadyExists tells callers that the requested resource is already
+// tracked locally or present in qBittorrent. Subscriptions treat this as a
+// successful dedup hit, not as a retryable enqueue failure.
+var ErrDownloadAlreadyExists = errors.New("download already exists")
+
 // DownloadTaskMeta carries public display metadata for a download. It is
 // deliberately separate from the private torrent URL so API responses never
 // need to expose tracker tokens.
@@ -181,6 +186,21 @@ func (d *DownloadService) AddDownloadWithMeta(ctx context.Context, userID, urlSt
 	if savePath == "" {
 		savePath, _ = d.repo.Setting.Get(ctx, "qbittorrent.savepath")
 	}
+	title := strings.TrimSpace(meta.Title)
+	if title == "" {
+		title = publicDownloadTitle(urlStr)
+		meta.Title = title
+	}
+	if existing, ok := d.findExistingDownloadTask(ctx, title); ok {
+		return existing, ErrDownloadAlreadyExists
+	}
+	if d.torrentExistsByIdentity(ctx, title) {
+		task, err := d.createTask(ctx, userID, urlStr, savePath, meta)
+		if err != nil {
+			return nil, err
+		}
+		return task, ErrDownloadAlreadyExists
+	}
 	var siteFetchErr error
 	if d.site != nil {
 		if data, name, err := d.site.FetchTorrentFile(ctx, urlStr); err == nil {
@@ -204,6 +224,70 @@ func (d *DownloadService) AddDownloadWithMeta(ctx context.Context, userID, urlSt
 	return d.createTask(ctx, userID, urlStr, savePath, meta)
 }
 
+func (d *DownloadService) findExistingDownloadTask(ctx context.Context, title string) (*model.DownloadTask, bool) {
+	key := downloadTaskIdentityKey(title)
+	if key == "" || d == nil || d.repo == nil || d.repo.Download == nil {
+		return nil, false
+	}
+	rows, err := d.repo.Download.List(ctx)
+	if err != nil {
+		return nil, false
+	}
+	for i := range rows {
+		if !downloadTaskBlocksReadd(rows[i].Status) {
+			continue
+		}
+		if downloadTaskIdentityKey(rows[i].Title) == key {
+			return &rows[i], true
+		}
+	}
+	return nil, false
+}
+
+func downloadTaskBlocksReadd(status string) bool {
+	switch strings.ToLower(strings.TrimSpace(status)) {
+	case "failed", "error", "deleted", "removed", "canceled", "cancelled":
+		return false
+	default:
+		return true
+	}
+}
+
+func (d *DownloadService) torrentExistsByIdentity(ctx context.Context, title string) bool {
+	query := downloadTaskIdentityKey(title)
+	if query == "" {
+		return false
+	}
+	live, err := d.qb.List(ctx, "")
+	if err != nil {
+		return false
+	}
+	for _, torrent := range live {
+		current := downloadTaskIdentityKey(torrent.Name)
+		if current == "" {
+			continue
+		}
+		if current == query || strings.Contains(current, query) || strings.Contains(query, current) {
+			return true
+		}
+	}
+	return false
+}
+
+func downloadTaskIdentityKey(name string) string {
+	name = strings.ToLower(strings.TrimSpace(name))
+	if name == "" {
+		return ""
+	}
+	var b strings.Builder
+	for _, r := range name {
+		if unicode.IsLetter(r) || unicode.IsDigit(r) {
+			b.WriteRune(r)
+		}
+	}
+	return b.String()
+}
+
 func (d *DownloadService) createTask(ctx context.Context, userID, urlStr, savePath string, meta DownloadTaskMeta) (*model.DownloadTask, error) {
 	title := strings.TrimSpace(meta.Title)
 	if title == "" {
@@ -484,10 +568,13 @@ func (d *DownloadService) poll(ctx context.Context) {
 		if err != nil {
 			continue
 		}
+		rows, _ := d.repo.Download.List(ctx)
+		taskByKey := tasksByIdentity(rows)
 		// Detect completed downloads and trigger organize
 		for _, t := range live {
 			hash := t.Hash
 			complete := t.Progress >= 1.0
+			d.syncDownloadTaskProgress(ctx, t, taskByKey)
 			if complete && !d.prevStates[hash] {
 				// Just completed: trigger organize
 				go d.onTorrentComplete(ctx, hash, t.SavePath)
@@ -498,6 +585,55 @@ func (d *DownloadService) poll(ctx context.Context) {
 	}
 }
 
+func (d *DownloadService) syncDownloadTaskProgress(ctx context.Context, torrent QBitTorrent, taskByKey map[string]model.DownloadTask) {
+	if d == nil || d.repo == nil || d.repo.DB == nil || strings.TrimSpace(torrent.Name) == "" {
+		return
+	}
+	matched, ok := findMatchingTaskByIdentity(torrent.Name, taskByKey)
+	if !ok {
+		return
+	}
+	status := torrent.State
+	if torrent.Progress >= 1 {
+		status = "completed"
+	}
+	if strings.TrimSpace(status) == "" {
+		status = matched.Status
+	}
+	updates := map[string]any{"progress": torrent.Progress}
+	if status != "" {
+		updates["status"] = status
+	}
+	_ = d.repo.DB.WithContext(ctx).Model(&model.DownloadTask{}).Where("id = ?", matched.ID).Updates(updates).Error
+}
+
+func tasksByIdentity(rows []model.DownloadTask) map[string]model.DownloadTask {
+	out := make(map[string]model.DownloadTask, len(rows))
+	for _, row := range rows {
+		key := downloadTaskIdentityKey(row.Title)
+		if key != "" {
+			out[key] = row
+		}
+	}
+	return out
+}
+
+func findMatchingTaskByIdentity(title string, taskByKey map[string]model.DownloadTask) (model.DownloadTask, bool) {
+	key := downloadTaskIdentityKey(title)
+	if key == "" {
+		return model.DownloadTask{}, false
+	}
+	if row, ok := taskByKey[key]; ok {
+		return row, true
+	}
+	for currentKey, row := range taskByKey {
+		if strings.Contains(key, currentKey) || strings.Contains(currentKey, key) {
+			return row, true
+		}
+	}
+	return model.DownloadTask{}, false
+}
+
 // onTorrentComplete handles a torrent that just finished downloading.
 // It tries to find the associated Media record and trigger organize.
 func (d *DownloadService) onTorrentComplete(ctx context.Context, hash string, savePath string) {

internal/service/downloads_test.go

@@ -2,10 +2,19 @@ package service
 
 import (
 	"encoding/json"
+	"errors"
+	"net/http"
+	"net/http/httptest"
 	"strings"
+	"sync/atomic"
 	"testing"
 
+	"github.com/glebarez/sqlite"
+	"go.uber.org/zap"
+	"gorm.io/gorm"
+
 	"github.com/ShukeBta/MediaStationGo/internal/model"
+	"github.com/ShukeBta/MediaStationGo/internal/repository"
 )
 
 func TestDownloadViewsDoNotExposePrivateURL(t *testing.T) {
@@ -41,3 +50,57 @@ func TestPublicDownloadTitleUsesMagnetDisplayName(t *testing.T) {
 		t.Fatalf("publicDownloadTitle = %q, want %q", got, "测试影片")
 	}
 }
+
+func TestAddDownloadWithMetaSkipsExistingTaskBeforeQBAdd(t *testing.T) {
+	var addCalls int32
+	qb := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		switch r.URL.Path {
+		case "/api/v2/auth/login":
+			_, _ = w.Write([]byte("Ok."))
+		case "/api/v2/torrents/info":
+			_, _ = w.Write([]byte(`[]`))
+		case "/api/v2/torrents/add":
+			atomic.AddInt32(&addCalls, 1)
+			_, _ = w.Write([]byte("Ok."))
+		default:
+			http.NotFound(w, r)
+		}
+	}))
+	defer qb.Close()
+
+	db, err := gorm.Open(sqlite.Open(":memory:"), &gorm.Config{})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := db.AutoMigrate(&model.DownloadTask{}, &model.Setting{}); err != nil {
+		t.Fatal(err)
+	}
+	repos := repository.New(db)
+	existing := &model.DownloadTask{
+		UserID:   "u1",
+		Source:   "qbittorrent",
+		URL:      "https://pt.example/download?id=old&passkey=old",
+		Title:    "Some Show S01E01 1080p",
+		SavePath: "/downloads/tv",
+		Status:   "completed",
+		Progress: 1,
+	}
+	if err := repos.Download.Create(t.Context(), existing); err != nil {
+		t.Fatal(err)
+	}
+
+	svc := NewDownloadService(zap.NewNop(), repos, NewHub(zap.NewNop()), nil)
+	svc.qb.Configure(QBitConfig{BaseURL: qb.URL, Username: "admin", Password: "admin"})
+	task, err := svc.AddDownloadWithMeta(t.Context(), "u1", "https://pt.example/download?id=new&passkey=new", "/downloads/tv", DownloadTaskMeta{
+		Title: "Some Show S01E01 1080p",
+	})
+	if !errors.Is(err, ErrDownloadAlreadyExists) {
+		t.Fatalf("err = %v, want ErrDownloadAlreadyExists", err)
+	}
+	if task == nil || task.ID != existing.ID {
+		t.Fatalf("task = %#v, want existing task %#v", task, existing)
+	}
+	if got := atomic.LoadInt32(&addCalls); got != 0 {
+		t.Fatalf("qb add calls = %d, want 0", got)
+	}
+}

internal/service/service.go

@@ -239,16 +239,15 @@ func (c *Container) Boot() {
 	// 启动调度器定时任务
 	c.Scheduler.Start(c.stopCtx)
 
-	// 不活跃清理巡检：随机 3~5 天窗口、默认关闭，由管理员在 Bot 设备策略开启。
-	// 每天触发一次评估（窗口天数随机，不固定）。
+	// 账号删号/保号规则巡检：默认关闭，由管理员在 Bot 或运维工具开启。
+	// 每天触发一次评估；规则里的窗口可随机，不固定。
 	if c.Device != nil {
 		go c.runInactivitySweeper(c.stopCtx)
 	}
 }
 
-// runInactivitySweeper periodically runs the inactivity-cleanup policy. The
-// policy itself is a no-op unless an admin enabled it; this just provides the
-// daily trigger with a non-fixed random window (handled inside the sweep).
+// runInactivitySweeper periodically runs the account-cleanup policy. Kept with
+// the historical name to avoid churn in callers.
 func (c *Container) runInactivitySweeper(ctx context.Context) {
 	ticker := time.NewTicker(24 * time.Hour)
 	defer ticker.Stop()
@@ -257,10 +256,10 @@ func (c *Container) runInactivitySweeper(ctx context.Context) {
 		case <-ctx.Done():
 			return
 		case <-ticker.C:
-			if n, err := c.Device.SweepInactiveUsers(ctx); err != nil {
-				c.Log.Warn("inactivity sweep failed", zap.Error(err))
+			if n, err := c.Device.SweepAccountCleanup(ctx); err != nil {
+				c.Log.Warn("account cleanup sweep failed", zap.Error(err))
 			} else if n > 0 {
-				c.Log.Info("inactivity sweep removed accounts", zap.Int("count", n))
+				c.Log.Info("account cleanup sweep removed accounts", zap.Int("count", n))
 			}
 		}
 	}

internal/service/subscription.go

@@ -214,10 +214,7 @@ func (s *SubscriptionService) runOne(ctx context.Context, sub *model.Subscriptio
 
 	queued := 0
 	for _, item := range feed.Channel.Items {
-		guid := item.GUID
-		if guid == "" {
-			guid = item.Link
-		}
+		guid := stableRSSItemGUID(item.Title, item.GUID, item.Link, item.Enclosure.URL)
 		if _, ok := seenSet[guid]; ok {
 			continue
 		}
@@ -253,6 +250,11 @@ func (s *SubscriptionService) runOne(ctx context.Context, sub *model.Subscriptio
 			BackdropURL: sub.BackdropURL,
 			Overview:    sub.Overview,
 		}); err != nil {
+			if errors.Is(err, ErrDownloadAlreadyExists) {
+				seen = append(seen, guid)
+				seenSet[guid] = struct{}{}
+				continue
+			}
 			s.log.Warn("subscription enqueue failed",
 				zap.String("title", item.Title),
 				zap.String("media_type", mediaType),
@@ -338,6 +340,11 @@ func (s *SubscriptionService) runSiteSearch(ctx context.Context, sub *model.Subs
 			BackdropURL: sub.BackdropURL,
 			Overview:    sub.Overview,
 		}); err != nil {
+			if errors.Is(err, ErrDownloadAlreadyExists) {
+				seen = append(seen, candidate.GUID)
+				seenSet[candidate.GUID] = struct{}{}
+				continue
+			}
 			lastEnqueueErr = err
 			s.log.Warn("site-search subscription enqueue failed",
 				zap.String("subscription", sub.Name),
@@ -389,7 +396,7 @@ func selectSiteSearchCandidates(results []SearchResult, sub *model.Subscription,
 		if download == "" {
 			continue
 		}
-		guid := download
+		guid := stableSiteSearchGUID(item, download)
 		if _, ok := seenSet[guid]; ok {
 			continue
 		}
@@ -472,6 +479,68 @@ func selectSiteSearchCandidates(results []SearchResult, sub *model.Subscription,
 	return selected
 }
 
+func stableRSSItemGUID(title, guid, link, enclosureURL string) string {
+	parts := []string{"rss", strings.ToLower(strings.TrimSpace(title))}
+	for _, raw := range []string{guid, enclosureURL, link} {
+		if key := stableDownloadURLKey(raw); key != "" {
+			parts = append(parts, key)
+			return strings.Join(parts, "|")
+		}
+		if raw = strings.TrimSpace(raw); raw != "" {
+			parts = append(parts, strings.ToLower(raw))
+			return strings.Join(parts, "|")
+		}
+	}
+	return strings.Join(parts, "|")
+}
+
+func stableSiteSearchGUID(item SearchResult, download string) string {
+	parts := []string{
+		"site",
+		strings.ToLower(strings.TrimSpace(firstNonEmpty(item.SiteID, item.SiteName))),
+		strings.ToLower(strings.TrimSpace(item.Category)),
+		strings.ToLower(strings.TrimSpace(item.Title)),
+		fmt.Sprintf("%d", item.Size),
+	}
+	if key := stableDownloadURLKey(download); key != "" {
+		parts = append(parts, key)
+	}
+	return strings.Join(parts, "|")
+}
+
+func stableDownloadURLKey(raw string) string {
+	raw = strings.TrimSpace(raw)
+	if raw == "" {
+		return ""
+	}
+	u, err := url.Parse(raw)
+	if err != nil {
+		return strings.ToLower(raw)
+	}
+	if strings.EqualFold(u.Scheme, "magnet") {
+		xt := strings.ToLower(strings.TrimSpace(u.Query().Get("xt")))
+		if xt != "" {
+			return "magnet:" + xt
+		}
+		return strings.ToLower(raw)
+	}
+	if u.Host == "" {
+		return strings.ToLower(raw)
+	}
+	q := u.Query()
+	kept := make([]string, 0, 4)
+	for _, key := range []string{"id", "tid", "torrent", "torrent_id", "torrentid", "hash", "info_hash"} {
+		if value := strings.TrimSpace(q.Get(key)); value != "" {
+			kept = append(kept, key+"="+strings.ToLower(value))
+		}
+	}
+	base := strings.ToLower(strings.TrimRight(u.Host, "/") + "/" + strings.TrimLeft(u.Path, "/"))
+	if len(kept) > 0 {
+		return base + "?" + strings.Join(kept, "&")
+	}
+	return base
+}
+
 // defaultExcludeWords 是参考 MoviePilot 默认过滤的「垃圾版本」排除清单，对所有订阅生效，
 // 与用户自定义排除词合并。拉丁词在 containsAnyExcludeToken 里按词边界匹配以避免子串误伤。
 const defaultExcludeWords = "cam,ts,tc,telesync,telecine,hdcam,hdts,枪版,抢先,抢鲜,预告,trailer,sample"

internal/service/subscription_test.go

@@ -3,6 +3,7 @@ package service
 import (
 	"os"
 	"path/filepath"
+	"strings"
 	"testing"
 
 	"github.com/ShukeBta/MediaStationGo/internal/model"
@@ -101,6 +102,23 @@ func TestSiteSearchKeywordCanUseIMDB(t *testing.T) {
 	}
 }
 
+func TestStableSiteSearchGUIDIgnoresPrivateTokenChanges(t *testing.T) {
+	item := SearchResult{
+		SiteID:   "mteam",
+		Title:    "Some Show S01E01 1080p",
+		Category: "TV",
+		Size:     1024,
+	}
+	first := stableSiteSearchGUID(item, "https://pt.example/download?id=123&passkey=old")
+	second := stableSiteSearchGUID(item, "https://pt.example/download?id=123&passkey=new")
+	if first != second {
+		t.Fatalf("stableSiteSearchGUID changed with token: %q != %q", first, second)
+	}
+	if strings.Contains(first, "passkey") || strings.Contains(first, "old") || strings.Contains(first, "new") {
+		t.Fatalf("stableSiteSearchGUID leaked private token: %q", first)
+	}
+}
+
 func TestSelectSiteSearchCandidatesOnlyQueuesMissingLocalEpisodes(t *testing.T) {
 	sub := &model.Subscription{Name: "间谍过家家 自动订阅", Filter: "间谍过家家", MediaType: "tv", TotalEpisodes: 3}
 	results := []SearchResult{

internal/service/telegram_menu.go

@@ -320,6 +320,9 @@ func (s *TelegramBotService) selfSetPass(ctx context.Context, msg *TelegramMessa
 	if err := s.auth.ResetPassword(ctx, user.ID, newPass); err != nil {
 		return telegramCommandReply{Text: "修改失败：" + err.Error()}
 	}
+	if s.device != nil {
+		_ = s.device.KickAllDevices(ctx, user.ID)
+	}
 	return telegramCommandReply{Text: "密码已修改，请用新密码重新登录第三方客户端。"}
 }
 
@@ -519,9 +522,17 @@ func (s *TelegramBotService) replyUserBan(ctx context.Context, userID string, un
 			return telegramCommandReply{Text: reason}
 		}
 	}
-	if err := s.repo.User.UpdateFields(ctx, userID, map[string]any{"is_active": unban}); err != nil {
+	updates := map[string]any{"is_active": unban}
+	if unban {
+		updates["share_warnings"] = 0
+		updates["last_share_warn_at"] = nil
+	}
+	if err := s.repo.User.UpdateFields(ctx, userID, updates); err != nil {
 		return telegramCommandReply{Text: "操作失败：" + err.Error()}
 	}
+	if unban {
+		_ = s.repo.UserDevice.SetKickedByUser(ctx, userID, false)
+	}
 	return s.replyUserActions(ctx, userID)
 }
 
@@ -572,14 +583,14 @@ func (s *TelegramBotService) protectReason(ctx context.Context, userID string) s
 func (s *TelegramBotService) replyDevicePolicy(ctx context.Context) telegramCommandReply {
 	cfg := loadBotConfig(ctx, s.repo)
 	text := fmt.Sprintf(
-		"<b>设备策略</b>\n\n① 防共享（警告制）：<b>%s</b>\n   并发播放上限 %d / 登录客户端上限 %d / 警告 %d 次后删号\n\n② 不活跃清理：<b>%s</b>\n   随机 %d~%d 天窗口观看 < %d 小时则删号（新号 %d 天宽限）\n\n两套策略默认关闭、互不干扰；删号前会先通过 Bot 通知用户；管理员/受保护账号永不自动处理。",
+		"<b>设备策略</b>\n\n① 防共享：<b>%s</b>\n   并发播放上限 %d / 登录客户端上限 %d；超限会禁用账号，管理员可解禁。\n   设备指纹异常警告 %d 次后禁用账号。\n\n② 自定义删号规则：<b>%s</b>\n   保号模式：%s；需要满足 %d 条；启用规则 %d 条。\n\n策略默认关闭；删号前会先通过 Bot 通知用户；管理员/受保护账号永不自动处理。",
 		onOff(cfg.AntiShareEnabled), cfg.MaxConcurrentPlay, cfg.MaxLoggedClients, cfg.WarnThreshold,
-		onOff(cfg.InactiveEnabled), cfg.InactiveWindowMin, cfg.InactiveWindowMax, cfg.InactiveMinHours, cfg.InactiveGraceDays)
+		onOff(cfg.AccountCleanupEnabled), cleanupModeLabel(cfg.AccountCleanupKeepMode), cfg.AccountCleanupRequiredCount, countEnabledCleanupRules(cfg.AccountCleanupRules))
 	return telegramCommandReply{
 		Text: text,
 		Buttons: [][]telegramInlineButton{
 			{{Text: toggleLabel("防共享", cfg.AntiShareEnabled), Data: "dp_toggle:antishare"}},
-			{{Text: toggleLabel("不活跃清理", cfg.InactiveEnabled), Data: "dp_toggle:inactive"}},
+			{{Text: toggleLabel("删号规则", cfg.AccountCleanupEnabled), Data: "dp_toggle:cleanup"}},
 			{{Text: "⬅️ 返回菜单", Data: "menu_main"}},
 		},
 	}
@@ -590,8 +601,8 @@ func (s *TelegramBotService) replyDevicePolicyToggle(ctx context.Context, which
 	switch which {
 	case "antishare":
 		_ = s.repo.Setting.Set(ctx, SettingAntiShareEnabled, strconv.FormatBool(!cfg.AntiShareEnabled))
-	case "inactive":
-		_ = s.repo.Setting.Set(ctx, SettingInactiveEnabled, strconv.FormatBool(!cfg.InactiveEnabled))
+	case "cleanup":
+		_ = s.repo.Setting.Set(ctx, SettingAccountCleanupEnabled, strconv.FormatBool(!cfg.AccountCleanupEnabled))
 	}
 	return s.replyDevicePolicy(ctx)
 }
@@ -606,3 +617,24 @@ func toggleLabel(name string, enabled bool) string {
 	}
 	return "开启" + name
 }
+
+func cleanupModeLabel(mode string) string {
+	switch mode {
+	case "all":
+		return "满足全部规则"
+	case "count":
+		return "满足指定数量"
+	default:
+		return "满足任意一条"
+	}
+}
+
+func countEnabledCleanupRules(rules []accountCleanupRule) int {
+	n := 0
+	for _, r := range rules {
+		if r.Enabled {
+			n++
+		}
+	}
+	return n
+}

internal/service/token_svc.go

@@ -56,8 +56,8 @@ type TokenPair struct {
 // TokenService 错误定义。
 var (
 	ErrInvalidRefreshToken = errors.New("invalid refresh token")
-	ErrTokenExpired       = errors.New("token expired")
-	ErrTokenRevoked       = errors.New("token revoked")
+	ErrTokenExpired        = errors.New("token expired")
+	ErrTokenRevoked        = errors.New("token revoked")
 )
 
 // IssuePair 为用户签发新的令牌对。
@@ -150,6 +150,12 @@ func (s *TokenService) Refresh(ctx context.Context, refreshToken string) (*Token
 	if user == nil {
 		return nil, ErrInvalidRefreshToken
 	}
+	if !user.IsActive {
+		return nil, ErrUserInactive
+	}
+	if user.ExpiredAt != nil && time.Now().After(*user.ExpiredAt) {
+		return nil, ErrUserExpired
+	}
 
 	// 撤销旧的 Refresh Token
 	if err := s.repo.RefreshToken.Revoke(ctx, tokenHash); err != nil {

web/src/api/admin.ts

@@ -13,6 +13,9 @@ export const adminAPI = {
   resetUserPassword: (id: string, password: string) =>
     api.patch(`/admin/users/${id}/password`, { password }).then((r) => r.data),
 
+  setUserStatus: (id: string, isActive: boolean) =>
+    api.patch<User>(`/admin/users/${id}/status`, { is_active: isActive }).then((r) => r.data),
+
   deleteUser: (id: string) => api.delete(`/admin/users/${id}`).then((r) => r.data),
 
   listSettings: () => api.get<Setting[]>('/admin/settings').then((r) => r.data),

web/src/pages/AdminPage.tsx

@@ -1,6 +1,6 @@
 import { FormEvent, useEffect, useState } from 'react'
 import toast from 'react-hot-toast'
-import { KeyRound, Pencil, Plus, ShieldCheck, Trash2, X } from 'lucide-react'
+import { KeyRound, Pencil, Plus, ShieldCheck, Trash2, UserCheck, UserX, X } from 'lucide-react'
 
 import { adminAPI } from '../api/admin'
 import { libraryAPI } from '../api/library'
@@ -245,6 +245,34 @@ function UsersPanel() {
     }
   }
 
+  const toggleStatus = async (u: User) => {
+    const next = !u.is_active
+    if (!next && u.is_protected) {
+      toast.error('受保护管理员不可禁用')
+      return
+    }
+    if (
+      !next &&
+      !(await confirmAction({
+        title: '禁用用户',
+        message: `禁用「${u.username}」后，Web 与第三方客户端已有登录也会失效。`,
+        confirmText: '禁用',
+      }))
+    ) {
+      return
+    }
+    try {
+      await adminAPI.setUserStatus(u.id, next)
+      toast.success(next ? '用户已解禁' : '用户已禁用')
+      await refresh()
+    } catch (err: unknown) {
+      const msg =
+        (err as { response?: { data?: { error?: string } } })?.response?.data?.error ??
+        '操作失败'
+      toast.error(msg)
+    }
+  }
+
   return (
     <div className="space-y-6">
       <form onSubmit={handleCreate} className="glass-panel grid gap-3 md:grid-cols-[1fr_1fr_auto]">
@@ -289,6 +317,7 @@ function UsersPanel() {
             <tr>
               <th className="py-2">用户名</th>
               <th>角色</th>
+              <th>状态</th>
               <th>权限说明</th>
               <th>最近登录</th>
               <th className="text-right">操作</th>
@@ -312,6 +341,9 @@ function UsersPanel() {
                   )}
                 </td>
                 <td className="text-ink-100">{u.role === 'admin' ? '管理员' : '观看用户'}</td>
+                <td className={u.is_active ? 'text-green-500' : 'text-red-400'}>
+                  {u.is_active ? '正常' : '已禁用'}
+                </td>
                 <td className="text-ink-50">
                   {u.role === 'admin' ? '全部管理权限' : '仅浏览/播放/外部播放器，无下载与文件操作'}
                 </td>
@@ -349,6 +381,19 @@ function UsersPanel() {
                   >
                     <KeyRound size={12} />
                   </button>
+                  <button
+                    className={
+                      'rounded-lg border px-2 py-1 text-xs disabled:cursor-not-allowed disabled:opacity-40 ' +
+                      (u.is_active
+                        ? 'border-orange-400/40 text-orange-500 hover:bg-orange-400/10'
+                        : 'border-green-400/40 text-green-500 hover:bg-green-400/10')
+                    }
+                    disabled={u.is_protected && u.is_active}
+                    title={u.is_active ? '禁用用户' : '解禁用户'}
+                    onClick={() => toggleStatus(u)}
+                  >
+                    {u.is_active ? <UserX size={12} /> : <UserCheck size={12} />}
+                  </button>
                   <button
                     className="rounded-lg border border-red-400/40 px-2 py-1 text-xs text-red-400 hover:bg-red-400/10 disabled:cursor-not-allowed disabled:opacity-40"
                     disabled={u.is_protected}

web/src/pages/ToolsPage.tsx

@@ -43,6 +43,7 @@ export function ToolsPage() {
       />
 
       <OrganizePanel />
+      <AccountCleanupPanel />
       <NotifyPanel />
     </div>
   )
@@ -559,6 +560,221 @@ function NotifyPanel() {
   )
 }
 
+type CleanupRule = {
+  id: string
+  name: string
+  type: 'watch_hours' | 'recent_login' | 'signin_streak' | 'account_age_grace'
+  enabled: boolean
+  window_days_min?: number
+  window_days_max?: number
+  min_hours?: number
+  min_count?: number
+}
+
+const cleanupKeys = {
+  enabled: 'device.account_cleanup_enabled',
+  mode: 'device.account_cleanup_keep_mode',
+  required: 'device.account_cleanup_required_count',
+  rules: 'device.account_cleanup_rules',
+  antishare: 'device.antishare_enabled',
+  maxPlay: 'device.max_concurrent_play',
+  maxClients: 'device.max_logged_clients',
+  warnThreshold: 'device.warn_threshold',
+}
+
+function defaultCleanupRules(): CleanupRule[] {
+  return [
+    {
+      id: 'watch_3_5d_6h',
+      name: '3~5 天观看满 6 小时',
+      type: 'watch_hours',
+      enabled: true,
+      window_days_min: 3,
+      window_days_max: 5,
+      min_hours: 6,
+    },
+  ]
+}
+
+function AccountCleanupPanel() {
+  const [loading, setLoading] = useState(true)
+  const [saving, setSaving] = useState(false)
+  const [enabled, setEnabled] = useState(false)
+  const [antiShare, setAntiShare] = useState(false)
+  const [maxPlay, setMaxPlay] = useState(3)
+  const [maxClients, setMaxClients] = useState(3)
+  const [warnThreshold, setWarnThreshold] = useState(2)
+  const [mode, setMode] = useState<'any' | 'all' | 'count'>('any')
+  const [required, setRequired] = useState(1)
+  const [rules, setRules] = useState<CleanupRule[]>(defaultCleanupRules())
+
+  useEffect(() => {
+    adminAPI
+      .listSettings()
+      .then((settings) => {
+        const byKey: Record<string, string> = {}
+        for (const s of settings) byKey[s.key] = s.value
+        setEnabled(isOn(byKey[cleanupKeys.enabled]))
+        setAntiShare(isOn(byKey[cleanupKeys.antishare]))
+        setMode((['any', 'all', 'count'].includes(byKey[cleanupKeys.mode]) ? byKey[cleanupKeys.mode] : 'any') as 'any' | 'all' | 'count')
+        setRequired(Number(byKey[cleanupKeys.required] || 1))
+        setMaxPlay(Number(byKey[cleanupKeys.maxPlay] || 3))
+        setMaxClients(Number(byKey[cleanupKeys.maxClients] || 3))
+        setWarnThreshold(Number(byKey[cleanupKeys.warnThreshold] || 2))
+        if (byKey[cleanupKeys.rules]) {
+          try {
+            const parsed = JSON.parse(byKey[cleanupKeys.rules]) as CleanupRule[]
+            if (Array.isArray(parsed) && parsed.length > 0) setRules(parsed)
+          } catch {
+            // keep defaults
+          }
+        }
+      })
+      .finally(() => setLoading(false))
+  }, [])
+
+  const updateRule = (id: string, patch: Partial<CleanupRule>) =>
+    setRules((prev) => prev.map((r) => (r.id === id ? { ...r, ...patch } : r)))
+
+  const addRule = () =>
+    setRules((prev) => [
+      ...prev,
+      {
+        id: `rule_${Date.now()}`,
+        name: '新保号规则',
+        type: 'watch_hours',
+        enabled: true,
+        window_days_min: 3,
+        window_days_max: 5,
+        min_hours: 6,
+      },
+    ])
+
+  const save = async () => {
+    setSaving(true)
+    try {
+      await adminAPI.updateSetting(cleanupKeys.antishare, antiShare ? 'true' : 'false')
+      await adminAPI.updateSetting(cleanupKeys.maxPlay, String(Math.max(1, maxPlay)))
+      await adminAPI.updateSetting(cleanupKeys.maxClients, String(Math.max(1, maxClients)))
+      await adminAPI.updateSetting(cleanupKeys.warnThreshold, String(Math.max(1, warnThreshold)))
+      await adminAPI.updateSetting(cleanupKeys.enabled, enabled ? 'true' : 'false')
+      await adminAPI.updateSetting(cleanupKeys.mode, mode)
+      await adminAPI.updateSetting(cleanupKeys.required, String(Math.max(1, required)))
+      await adminAPI.updateSetting(cleanupKeys.rules, JSON.stringify(rules))
+      toast.success('设备策略与删号规则已保存')
+    } catch {
+      toast.error('保存失败')
+    } finally {
+      setSaving(false)
+    }
+  }
+
+  return (
+    <section className="glass-panel space-y-4">
+      <div className="flex items-center gap-2">
+        <Info size={18} className="text-red-400" />
+        <h2 className="font-display text-lg font-semibold text-ink-600">设备限制 &amp; 删号规则</h2>
+      </div>
+      <p className="text-xs text-sand-500">
+        设备限制用于防共享：同一用户同时播放超过上限会被禁用，管理员可在用户管理或 Bot 中解禁。删号规则为“保号规则”：用户满足足够条件则保留，否则巡检时删除。
+      </p>
+      {loading ? (
+        <div className="text-sm text-ink-50">读取配置中…</div>
+      ) : (
+        <>
+          <div className="grid gap-3 md:grid-cols-4">
+            <label className="flex items-center gap-2 rounded-xl border border-gray-200 bg-gray-50 p-3 text-sm text-ink-600">
+              <input type="checkbox" checked={antiShare} onChange={(e) => setAntiShare(e.target.checked)} />
+              开启设备限制
+            </label>
+            <NumberField label="同时播放上限" value={maxPlay} onChange={setMaxPlay} />
+            <NumberField label="登录设备上限" value={maxClients} onChange={setMaxClients} />
+            <NumberField label="指纹警告阈值" value={warnThreshold} onChange={setWarnThreshold} />
+          </div>
+          <div className="grid gap-3 rounded-xl border border-gray-200 bg-white/40 p-3 md:grid-cols-4">
+            <label className="flex items-center gap-2 text-sm text-ink-600">
+              <input type="checkbox" checked={enabled} onChange={(e) => setEnabled(e.target.checked)} />
+              开启删号规则巡检
+            </label>
+            <label className="space-y-1">
+              <span className="text-xs text-ink-50">保号模式</span>
+              <select className="input-base w-full" value={mode} onChange={(e) => setMode(e.target.value as 'any' | 'all' | 'count')}>
+                <option value="any">满足任意一条规则</option>
+                <option value="all">满足全部规则</option>
+                <option value="count">满足指定数量规则</option>
+              </select>
+            </label>
+            <NumberField label="指定数量" value={required} onChange={setRequired} disabled={mode !== 'count'} />
+            <button type="button" className="neon-button self-end" onClick={addRule}>
+              添加规则
+            </button>
+          </div>
+          <div className="space-y-3">
+            {rules.map((rule) => (
+              <div key={rule.id} className="grid gap-2 rounded-xl border border-gray-200 bg-gray-50 p-3 md:grid-cols-6">
+                <label className="flex items-center gap-2 text-xs text-ink-600">
+                  <input type="checkbox" checked={rule.enabled} onChange={(e) => updateRule(rule.id, { enabled: e.target.checked })} />
+                  启用
+                </label>
+                <input className="input-base" value={rule.name} onChange={(e) => updateRule(rule.id, { name: e.target.value })} />
+                <select className="input-base" value={rule.type} onChange={(e) => updateRule(rule.id, { type: e.target.value as CleanupRule['type'] })}>
+                  <option value="watch_hours">观看时长</option>
+                  <option value="recent_login">最近登录</option>
+                  <option value="signin_streak">连续签到</option>
+                  <option value="account_age_grace">新号宽限</option>
+                </select>
+                <NumberField label="窗口下限/天" value={rule.window_days_min ?? 3} onChange={(v) => updateRule(rule.id, { window_days_min: v })} />
+                <NumberField label="窗口上限/天" value={rule.window_days_max ?? 5} onChange={(v) => updateRule(rule.id, { window_days_max: v })} />
+                <div className="flex gap-2">
+                  {rule.type === 'watch_hours' ? (
+                    <NumberField label="最低小时" value={rule.min_hours ?? 6} onChange={(v) => updateRule(rule.id, { min_hours: v })} />
+                  ) : (
+                    <NumberField label="最低数量/天" value={rule.min_count ?? 1} onChange={(v) => updateRule(rule.id, { min_count: v })} />
+                  )}
+                  <button type="button" className="rounded-lg border border-red-400/40 px-2 text-xs text-red-400" onClick={() => setRules((prev) => prev.filter((r) => r.id !== rule.id))}>
+                    删除
+                  </button>
+                </div>
+              </div>
+            ))}
+          </div>
+          <button type="button" disabled={saving} className="neon-button" onClick={save}>
+            {saving ? <Loader2 size={16} className="animate-spin" /> : null}
+            保存设备与删号规则
+          </button>
+        </>
+      )}
+    </section>
+  )
+}
+
+function NumberField({
+  label,
+  value,
+  onChange,
+  disabled,
+}: {
+  label: string
+  value: number
+  onChange: (value: number) => void
+  disabled?: boolean
+}) {
+  return (
+    <label className="space-y-1">
+      <span className="text-xs text-ink-50">{label}</span>
+      <input
+        type="number"
+        min={0}
+        step={label.includes('小时') ? 0.5 : 1}
+        disabled={disabled}
+        className="input-base w-full"
+        value={value}
+        onChange={(e) => onChange(Number(e.target.value))}
+      />
+    </label>
+  )
+}
+
 function Field({ label, children }: { label: string; children: React.ReactNode }) {
   return (
     <label className="block">