Method banUser

aban/aban.ts:772–799

(
    client: TelegramClient,
    chatId: any,
    userId: number,
    until: number = 0,
    participant?: any
  )

    const dialogMap = new Map<number, any>();

    const collectDialogs = async (params: Record<string, any>) => {
      const dialogs = await client.getDialogs(params);
      for (const dialog of dialogs || []) {
        if (dialog.isChannel || dialog.isGroup) {
          dialogMap.set(Number(dialog.id), dialog);
        }
      }
    };

    await collectDialogs({});
    await collectDialogs({ folderId: 1 });

    return Array.from(dialogMap.values());
  }

  /**
   * teleproto Dialog.entity（Channel/Chat）自带 creator/adminRights，
   * 比逐群 GetParticipant 更稳：无 RPC、无 accessHash 假阴性。
   */
  private static dialogHasManageRights(dialog: any): boolean {
    const entity = dialog?.entity;
    if (!entity) return false;
    if (entity.creator) return true;
    const rights = entity.adminRights;
    if (!rights) return false;
    return !!(rights.banUsers || rights.deleteMessages);
  }

  static async getManagedGroups(
    client: TelegramClient
  ): Promise<ManagedGroup[]> {