refactor: refactor task logic for better scalability (#76)

* refactor: a big refactor. wip

* refactor: port handle file

* refactor: place all handlers

* fix: task info nil pointer

* feat: enhance task progress tracking and context management

* feat: cancel task

* feat: stream mode

* feat: silent mode

* feat: dir cmd

* refactor: remove unused old file

* feat: rule cmd

* feat: handle silent mode

* feat: batch task

* fix: batch task progress and temp file cleanup

* refactor: update file creation and cleanup methods for better resource management

* feat: add save command with silent mode handling

* feat: message link

* feat: update message prompts to include file count in storage selection

* feat: slient save links

* refactor: reduce dup code

* feat: rule type

* feat: chose dir

* feat: refactor file handling and storage rules, improve error handling and logging

* feat: rule mode

* feat: telegraph pics

* fix: tphpics nil pointer and inaccurate dirpath

* feat: silent save telegraph

* feat: add suffix to avoid file overwrite

* feat: new storage telegram

* chore: tidy go mod

client/bot/handlers/middleware.go

@@ -0,0 +1,49 @@
+package handlers
+
+import (
+	"github.com/celestix/gotgproto/dispatcher"
+	"github.com/celestix/gotgproto/ext"
+	"github.com/duke-git/lancet/v2/slice"
+	"github.com/krau/SaveAny-Bot/config"
+	"github.com/krau/SaveAny-Bot/database"
+	"github.com/krau/SaveAny-Bot/storage"
+)
+
+func checkPermission(ctx *ext.Context, update *ext.Update) error {
+	userID := update.GetUserChat().GetID()
+	if !slice.Contain(config.Cfg.GetUsersID(), userID) {
+		const noPermissionText string = `
+您不在白名单中, 无法使用此 Bot.
+您可以部署自己的实例: https://github.com/krau/SaveAny-Bot
+`
+		ctx.Reply(update, ext.ReplyTextString(noPermissionText), nil)
+		return dispatcher.EndGroups
+	}
+
+	return dispatcher.ContinueGroups
+}
+
+func handleSilentMode(next func(*ext.Context, *ext.Update) error, handler func(*ext.Context, *ext.Update) error) func(*ext.Context, *ext.Update) error {
+	return func(ctx *ext.Context, update *ext.Update) error {
+		userID := update.GetUserChat().GetID()
+		user, err := database.GetUserByChatID(ctx, userID)
+		if err != nil {
+			ctx.Reply(update, ext.ReplyTextString("获取用户信息失败: "+err.Error()), nil)
+			return dispatcher.EndGroups
+		}
+		if !user.Silent {
+			return next(ctx, update)
+		}
+		if user.DefaultStorage == "" {
+			ctx.Reply(update, ext.ReplyTextString("您已开启静默模式, 但未设置默认存储端, 请先使用 /storage 设置"), nil)
+			return next(ctx, update)
+		}
+		stor, err := storage.GetStorageByUserIDAndName(ctx, userID, user.DefaultStorage)
+		if err != nil {
+			ctx.Reply(update, ext.ReplyTextString("获取默认存储失败: "+err.Error()), nil)
+			return dispatcher.EndGroups
+		}
+		ctx.Context = storage.WithContext(ctx.Context, stor)
+		return handler(ctx, update)
+	}
+}