feat: App→网页免登录(一次性换票 SSO)——移动/桌面点链接直达已登录官网
- backend:POST /auth/web-ticket(需登录,签 60s 单次票据,每用户限频)+ POST /auth/web-ticket/exchange(公开,原子即焚兑换正常登录态,响应同 /auth/login 另带 shop_code);web_tickets 新表 + user_sessions.kind 列 (sso 会话:web 平台、refresh 12h 硬到期、不占设备并发配额、设备管理可见 可踢);清理任务顺带清过期票据;schema.sql/AutoMigrate/testutil 同步 - web:/sso 落地页——兑票写入与 Web 版共享的 localStorage 后跳 redirect; redirect 白名单只收本站相对路径(防 open redirect),票据即时从地址栏抹除 - client:launchAuthedWebPath(ref, path) 封装(签票→拼 /sso URL→launchUrl, 失败降级未登录直开;桌面/移动同一套);授权面板「查看套餐价格」接入 test(backend): web_ticket_test 三用例(兑换+续期/单次即焚/过期拒绝/ sso 不占配额双向验证) Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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@@ -1,6 +1,8 @@
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package service
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import (
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"crypto/rand"
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"encoding/base64"
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"errors"
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"fmt"
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"log"
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@@ -217,10 +219,12 @@ func (s *AuthService) Login(shopCode, username, password string, dev DeviceInfo)
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// 统计该 user 全部平台的活跃会话(不分平台类);已达上限则拒绝。
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// 仅计未过期会话:refresh 已过期的行等待 cleanup 物理删除,不再占配额
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// (历史 bug:过期未清理的会话把坑占满,正常用户被锁在门外)。
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// kind=sso(App→网页免登录的短时会话)不占设备配额。
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var activeCount int64
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if err := tx.Model(&model.UserSession{}).
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Set("gorm:query_option", "FOR UPDATE").
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Where("shop_id = ? AND user_id = ? AND revoked_at IS NULL AND refresh_exp_at > ?",
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Where("shop_id = ? AND user_id = ? AND revoked_at IS NULL AND refresh_exp_at > ?"+
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" AND kind <> 'sso'",
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shop.ID, user.ID, now).
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Count(&activeCount).Error; err != nil {
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return err
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@@ -789,3 +793,98 @@ func (s *AuthService) issueTokens(userID, shopID uint64, role, sid, refreshJTI s
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ShopID: shopID,
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}, nil
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}
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// ═══════════════ App → 网页免登录(一次性换票,magic-link)═══════════════
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// App 持 JWT 调 IssueWebTicket 签票(TTL 60s、单次可用),浏览器打开 /sso
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// 页后凭票 LoginWithWebTicket 兑换正常 web 会话(kind=sso:不占设备配额、
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// refresh 12 小时硬到期——RefreshTokens 轮换不延长 refresh_exp_at)。
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const (
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webTicketTTL = 60 * time.Second
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ssoRefreshExpire = 12 * time.Hour
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)
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// ErrTicketInvalid 票据不存在 / 已使用 / 已过期。
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var ErrTicketInvalid = errors.New("票据无效或已过期")
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// IssueWebTicket 为已登录用户签发一次性网页登录票据。
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func (s *AuthService) IssueWebTicket(shopID, userID uint64) (string, int, error) {
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buf := make([]byte, 32)
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if _, err := rand.Read(buf); err != nil {
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return "", 0, err
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}
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ticket := base64.RawURLEncoding.EncodeToString(buf)
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wt := model.WebTicket{
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Ticket: ticket,
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ShopID: shopID,
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UserID: userID,
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ExpiresAt: time.Now().Add(webTicketTTL),
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}
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if err := s.db.Create(&wt).Error; err != nil {
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return "", 0, err
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}
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return ticket, int(webTicketTTL.Seconds()), nil
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}
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// LoginWithWebTicket 凭一次性票据兑换 web 会话。票据消费为原子置位
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// (UPDATE … WHERE used_at IS NULL),并发重放必失败。
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func (s *AuthService) LoginWithWebTicket(
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ticket string, dev DeviceInfo,
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) (*TokenPair, *model.User, *model.Shop, error) {
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now := time.Now()
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res := s.db.Model(&model.WebTicket{}).
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Where("ticket = ? AND used_at IS NULL AND expires_at > ?", ticket, now).
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Update("used_at", now)
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if res.Error != nil {
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return nil, nil, nil, res.Error
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}
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if res.RowsAffected != 1 {
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return nil, nil, nil, ErrTicketInvalid
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}
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var wt model.WebTicket
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if err := s.db.Where("ticket = ?", ticket).First(&wt).Error; err != nil {
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return nil, nil, nil, ErrTicketInvalid
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}
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var user model.User
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if err := s.db.Where("id = ? AND shop_id = ?", wt.UserID, wt.ShopID).
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First(&user).Error; err != nil {
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return nil, nil, nil, ErrInvalidCredentials
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}
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if !user.IsActive {
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return nil, nil, nil, ErrUserInactive
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}
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var shop model.Shop
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if err := s.db.First(&shop, wt.ShopID).Error; err != nil {
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return nil, nil, nil, err
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}
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// sso 会话:web 平台、短时效、不占配额(平台闸门不拦——票据由已登录
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// 会话签出,权限等同签票用户本人)。
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sid := uuid.New().String()
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jti := uuid.New().String()
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sess := model.UserSession{
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ShopID: shop.ID,
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UserID: user.ID,
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SID: sid,
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DeviceID: dev.DeviceID,
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DeviceName: "网页免登(App 跳转)",
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Platform: "web",
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PlatformClass: "web",
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Kind: "sso",
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IP: dev.IP,
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UserAgent: dev.UserAgent,
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RefreshJTI: jti,
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LastSeenAt: now,
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RefreshExpAt: now.Add(ssoRefreshExpire),
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}
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if err := s.db.Create(&sess).Error; err != nil {
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return nil, nil, nil, err
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}
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pair, err := s.issueTokens(user.ID, shop.ID, user.Role, sid, jti)
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if err != nil {
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return nil, nil, nil, err
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}
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return pair, &user, &shop, nil
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}
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