From fb2eff5f235163cc499d5da9622ef342185e5158 Mon Sep 17 00:00:00 2001
From: Victor_Jay <ovoex.cn@gmail.com>
Date: Sat, 30 May 2026 20:38:55 +0800
Subject: [PATCH] =?UTF-8?q?feat:=20=E6=B3=A8=E5=86=8C=E5=85=B3=E9=97=AD?=
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- RegisterPage 传入 RegistrationEnabled 标志到模板
- 注册关闭时隐藏输入框和按钮，显示“当前暂不开放注册”提示
- 保留“已有账号？立即登录”链接
- API 层已有拦截（AuthService.Register 返回 403），无需修改
- authUseCase 接口新增 IsRegistrationEnabled 方法（ISP）
---
 internal/controller/auth_controller.go        |  9 +++++----
 internal/controller/interfaces.go             |  3 ++-
 internal/service/auth_service.go              |  5 +++++
 .../MetaLab-2026/html/auth/register.html      |  7 +++++++
 templates/MetaLab-2026/static/css/auth.css    | 19 +++++++++++++++++++
 5 files changed, 38 insertions(+), 5 deletions(-)

diff --git a/internal/controller/auth_controller.go b/internal/controller/auth_controller.go
index fe1b7c7..6b6244e 100644
--- a/internal/controller/auth_controller.go
+++ b/internal/controller/auth_controller.go
@@ -23,7 +23,7 @@ func NewAuthController(authService authUseCase, tokenSvc tokenRefresher, limiter
 	return &AuthController{authService: authService, tokenService: tokenSvc, rateLimiter: limiter, cfg: cfg}
 }
 
-// RegisterPage 注册页面（已登录用户重定向到首页，注册关闭时重定向到登录页）
+// RegisterPage 注册页面（已登录用户重定向到首页）
 func (ac *AuthController) RegisterPage(c *gin.Context) {
 	if _, exists := c.Get("uid"); exists {
 		c.Redirect(http.StatusFound, "/")
@@ -35,9 +35,10 @@ func (ac *AuthController) RegisterPage(c *gin.Context) {
 		return
 	}
 	c.HTML(http.StatusOK, "auth/register.html", common.BuildPageData(c, gin.H{
-		"Title":      "注册",
-		"ExtraCSS":   "/static/css/auth.css",
-		"Guidelines": guidelines,
+		"Title":                "注册",
+		"ExtraCSS":             "/static/css/auth.css",
+		"Guidelines":           guidelines,
+		"RegistrationEnabled":  ac.authService.IsRegistrationEnabled(),
 	}))
 }
 
diff --git a/internal/controller/interfaces.go b/internal/controller/interfaces.go
index c9fcbce..00854fc 100644
--- a/internal/controller/interfaces.go
+++ b/internal/controller/interfaces.go
@@ -6,12 +6,13 @@ import (
 	"metazone.cc/metalab/internal/service"
 )
 
-// authUseCase AuthController 对 AuthService 的最小依赖（ISP：4 个方法）
+// authUseCase AuthController 对 AuthService 的最小依赖（ISP：5 个方法）
 type authUseCase interface {
 	Register(req model.RegisterRequest, regIP string) (string, string, *model.User, error)
 	Login(req model.LoginRequest, loginIP string) (string, string, *model.User, error)
 	ConfirmRestore(req model.LoginRequest, loginIP string) (string, string, *model.User, error)
 	CheckEmail(email string) (bool, error)
+	IsRegistrationEnabled() bool
 }
 
 // tokenRefresher AuthController 对 TokenService 的最小依赖（ISP：1 个方法）
diff --git a/internal/service/auth_service.go b/internal/service/auth_service.go
index a1e9af9..4c0179a 100644
--- a/internal/service/auth_service.go
+++ b/internal/service/auth_service.go
@@ -52,6 +52,11 @@ func validatePassword(pw string) error {
 	return nil
 }
 
+// IsRegistrationEnabled 检查是否允许新用户注册
+func (s *AuthService) IsRegistrationEnabled() bool {
+	return s.siteSettings.IsRegistrationEnabled()
+}
+
 // Register 注册
 // 流程：密码强度 → 邮箱查重 → 哈希 → 生成唯一用户名 → 创建 → access JWT + refresh JWT
 // rememberMe=true: refresh Cookie 持久化（30天）；false: session cookie（关浏览器即清除）
diff --git a/templates/MetaLab-2026/html/auth/register.html b/templates/MetaLab-2026/html/auth/register.html
index 00ccd23..64e0bc5 100644
--- a/templates/MetaLab-2026/html/auth/register.html
+++ b/templates/MetaLab-2026/html/auth/register.html
@@ -7,6 +7,7 @@
     <div class="auth-card">
         <h2>创建账号</h2>
         <p class="auth-subtitle">加入 MetaLab 开发者社区</p>
+        {{if .RegistrationEnabled}}
         <form id="registerForm" novalidate>
             <input type="hidden" name="csrf_token" value="{{.CSRFToken}}">
             <div class="form-group">
@@ -34,6 +35,12 @@
             <p class="guidelines-link">点击注册即表示同意 <a href="javascript:void(0)" id="openGuidelines">《MetaLab 社区用户准则》</a></p>
             <button type="submit" class="submit-btn" id="submitBtn">注 册</button>
         </form>
+        {{else}}
+        <div class="registration-closed">
+            <p class="closed-message">当前暂不开放注册，敬请期待</p>
+            <p class="closed-subtitle">社区正在维护中，请稍后再来</p>
+        </div>
+        {{end}}
         <div class="auth-footer">
             已有账号？<a href="/auth/login">立即登录</a>
         </div>
diff --git a/templates/MetaLab-2026/static/css/auth.css b/templates/MetaLab-2026/static/css/auth.css
index 2cd8db4..daa1c21 100644
--- a/templates/MetaLab-2026/static/css/auth.css
+++ b/templates/MetaLab-2026/static/css/auth.css
@@ -36,6 +36,25 @@
     margin-bottom: 2rem;
 }
 
+/* ---------- Registration Closed Notice ---------- */
+.registration-closed {
+    text-align: center;
+    padding: 2.5rem 1rem;
+    margin-bottom: .5rem;
+}
+
+.registration-closed .closed-message {
+    font-size: 1.05rem;
+    font-weight: 600;
+    color: var(--color-primary);
+    margin-bottom: .5rem;
+}
+
+.registration-closed .closed-subtitle {
+    font-size: .9rem;
+    color: var(--color-secondary);
+}
+
 /* ---------- Form ---------- */
 .form-group {
     margin-bottom: 1.2rem;