开源前加固认证与部署契约：加密随机 JWT、改密事务吊销、登录 CSRF，并禁止生产回落 localhost。

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/handler/auth.go

@@ -59,27 +59,46 @@ func setAuthCookies(c *gin.Context, accessToken, refreshToken string, secure boo
 	})
 }
 
-// clearAuthCookies 清除当前契约下的三枚认证 cookie（名称随 ConfigureCookieNames，Path=/）。
+// clearAuthCookies 清除当前契约下的认证 cookie，并顺带清历史 Path=/api/auth 与无前缀名。
 func clearAuthCookies(c *gin.Context, secure bool) {
-	cookies := []struct {
+	type ck struct {
 		name     string
 		httpOnly bool
-	}{
+	}
+	cookies := []ck{
 		{service.CookieName, true},
 		{service.RefreshCookieName, true},
 		{service.CSRFCookieName, false},
+		// 历史无 __Host- 前缀（切换 DEV_MODE 后避免双 cookie）
+		{"j13_token", true},
+		{"j13_refresh", true},
+		{"j13_csrf", false},
+		{"__Host-j13_token", true},
+		{"__Host-j13_refresh", true},
+		{"__Host-j13_csrf", false},
 	}
+	paths := []string{"/", "/api/auth"}
 	for _, ck := range cookies {
-		http.SetCookie(c.Writer, &http.Cookie{
-			Name:     ck.name,
-			Value:    "",
-			Path:     "/",
-			MaxAge:   -1,
-			HttpOnly: ck.httpOnly,
-			Secure:   secure,
-			SameSite: http.SameSiteLaxMode,
-			Expires:  time.Unix(0, 0),
-		})
+		for _, path := range paths {
+			// __Host- 要求 Secure=true 且 Path=/；非 / 路径跳过 Host 前缀名
+			if strings.HasPrefix(ck.name, "__Host-") && path != "/" {
+				continue
+			}
+			sec := secure
+			if strings.HasPrefix(ck.name, "__Host-") {
+				sec = true
+			}
+			http.SetCookie(c.Writer, &http.Cookie{
+				Name:     ck.name,
+				Value:    "",
+				Path:     path,
+				MaxAge:   -1,
+				HttpOnly: ck.httpOnly,
+				Secure:   sec,
+				SameSite: http.SameSiteLaxMode,
+				Expires:  time.Unix(0, 0),
+			})
+		}
 	}
 }
 
@@ -233,7 +252,7 @@ func (h *Handlers) Refresh(c *gin.Context) {
 // access JWT 无状态、15 分钟自然过期；登出后 tv 不递增，属可接受的短窗口。
 func (h *Handlers) Logout(c *gin.Context) {
 	if refreshToken, err := c.Cookie(service.RefreshCookieName); err == nil && refreshToken != "" {
-		h.Auth.RevokeRefreshToken(refreshToken)
+		_ = h.Auth.RevokeRefreshToken(refreshToken)
 	}
 	clearAuthCookies(c, !h.Cfg.DevMode)
 	c.JSON(http.StatusOK, gin.H{"message": "已登出"})