Method closePort

ssh/ssh.ts:1333–1373

(msg: Api.Message, portStr: string)

      await msg.edit({
        text: `✅ <b>端口 ${port} 已开放</b>\n\n协议: TCP/UDP\n\n💡 提示: 规则已添加到iptables，重启后可能需要重新设置`,
        parseMode: "html"
      });
    } catch (error: any) {
      throw new Error(`开放端口失败: ${error.message}`);
    }
  }

  // 关闭防火墙端口
  private async closePort(msg: Api.Message, portStr: string): Promise<void> {
    const port = validatePort(portStr);
    
    if (!port) {
      await msg.edit({
        text: `❌ <b>无效的端口号</b>\n\n端口范围: 1-65535\n示例: <code>${mainPrefix}ssh close 80</code>`,
        parseMode: "html"
      });
      return;
    }

    await msg.edit({ text: `🔄 正在关闭端口 ${port}...`, parseMode: "html" });

    try {
      // 使用iptables关闭端口
      for (const protocol of ["tcp", "udp"]) {
        try {
          await execFileAsync("iptables", ["-D", "INPUT", "-p", protocol, "--dport", String(port), "-j", "ACCEPT"]);
        } catch { }
        await execFileAsync("iptables", ["-A", "INPUT", "-p", protocol, "--dport", String(port), "-j", "DROP"]);
      }

      // 尝试保存iptables规则
      try {
        await saveIptablesRules();
      } catch {
        console.log("[sshkey] 无法持久化iptables规则");
      }

      await msg.edit({
        text: `✅ <b>端口 ${port} 已关闭</b>\n\n协议: TCP/UDP\n\n💡 提示: 规则已添加到iptables，重启后可能需要重新设置`,
        parseMode: "html"
      });
    } catch (error: any) {
      throw new Error(`关闭端口失败: ${error.message}`);
    }