Add maintenance page

Signed-off-by: Sean Du <do4suki@gmail.com>

internal/handler/announce/index.go

@@ -10,7 +10,7 @@ import (
 
 func index(ctx *gin.Context) {
 	ctx.HTML(http.StatusOK, "common/announce.html", gin.H{
-		"title": "Love Live! 学园偶像祭 本地服务器",
+		"title": "Love Live! 学园偶像祭",
 		"content": template.HTML(`目前开发完毕的功能包括：<br><ul><li>登录</li><li>相册</li><li>编队</li><li>饰品</li><li>宝石</li><li>Live</li><li>个人信息设置</li><li>官方漫画</li><ul><br>
 			其他功能仍在开发中，有报错属于正常现象。<br><br>
 			侵权联系：<a href="https://space.bilibili.com/671443">梦路_YumeMichi @bilibili</a> 进行删除。`),

internal/handler/handler.go

@@ -13,6 +13,7 @@ import (
 	_ "honoka-chan/internal/handler/lbonus"
 	_ "honoka-chan/internal/handler/live"
 	_ "honoka-chan/internal/handler/login"
+	_ "honoka-chan/internal/handler/maintenance"
 	_ "honoka-chan/internal/handler/multiunit"
 	_ "honoka-chan/internal/handler/museum"
 	_ "honoka-chan/internal/handler/notice"

internal/handler/maintenance/maintenance.go

@@ -0,0 +1,20 @@
+package maintenance
+
+import (
+	"honoka-chan/internal/router"
+	"html/template"
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+)
+
+func maintenance(ctx *gin.Context) {
+	ctx.HTML(http.StatusOK, "common/maintenance.html", gin.H{
+		"title":   "Love Live! 学园偶像祭",
+		"content": template.HTML(`系统维护中，请稍后重试！`),
+	})
+}
+
+func init() {
+	router.AddHandler("/", "GET", "/resources/maintenace/maintenance.php", maintenance)
+}