commit 40385167e32653ee1a80faa3e321858504aae231
Author: Nikita Tyukalov, ASUS, Linux <murkaTheGood@gmail.com>
Date:   Sat Nov 22 23:39:39 2025 +0300

    Initial commit

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..08593ea
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,6 @@
+__pycache__
+sessions
+*_temp
+.*.swp
+.*.swo
+config.json
diff --git a/config.py b/config.py
new file mode 100644
index 0000000..9639469
--- /dev/null
+++ b/config.py
@@ -0,0 +1,107 @@
+''' Config reader '''
+
+import json
+
+def read_config(path: str) -> dict | None:
+    ''' Read config '''
+    default = {
+        'management_token': 'TELEGRAM_BOT_TOKEN_HERE',
+        'tg_api_id': 12345,
+        'tg_api_hash': '0123456789abcdef0123456789abcdef',
+        'accounts': {
+            'account1': {
+                'login': '+71234567890',
+                'mod_basic': True,
+                'mod_eternal_online': False,
+                'mod_video_downloader': True
+            }
+        }
+    }
+    # root fields
+    root_required_fields = {
+        'management_token': [str],
+        'tg_api_id': [int],
+        'tg_api_hash': [str],
+        'tg_admin_uid': [int],
+        'accounts': [dict]
+    }
+
+    # account fields
+    required_fields = {
+        'login': [str]
+    }
+    optional_fields = {
+        'mod_basic': ([bool], True),
+        'mod_eternal_online': ([bool], False),
+        'mod_video_downloader': ([bool], False)
+    }
+    try:
+        j = None
+        with open(path, 'r') as f:
+            j = json.loads(f.read())
+        # root fields check
+        for key in root_required_fields:
+            if key not in j:
+                print('[!] Config misses key \'%s\'' % key)
+                return None
+            if type(j[key]) not in root_required_fields[key]:
+                print('[!] Config has key \'%s\' of invalid type: must be one of %s' % (key, root_required_fields[key]))
+                return None
+        # check all accounts
+        for account_name in dict(j['accounts']):
+            # to remove the account?
+            to_remove = False
+
+            # save the account with short name
+            acc = j['accounts'][account_name]
+            # check if all required fields are present
+            for key in required_fields:
+                # missing field
+                if key not in acc:
+                    to_remove = True
+                    print('[!] Account \'%s\' misses required field \'%s\'' % (account_name, key))
+                    break
+                # invalid type
+                t = type(acc[key])
+                if t not in required_fields[key]:
+                    to_remove = True
+                    print('[!] Account \'%s\' has required field of invalid type: \'%s\' must be one of %s' % (account_name, key, required_fields[key]))
+                    break
+            # remove the account
+            if to_remove:
+                print('[!] Account \'%s\' will not be served until errors are fixed' % account_name)
+                del j[account_name]
+                continue
+            # check all optional fields
+            for key in optional_fields:
+                # get allowed types and default value
+                allowed_types, default_value = optional_fields[key]
+                # missing - add default value
+                if key not in acc:
+                    print(
+                        '[W] Account \'%s\' misses optional field \'%s\', using default value \'%s\'' % \
+                        (account_name, key, default_value)
+                    )
+                    acc[key] = default_value
+                    continue
+                # invalid type
+                t = type(acc[key])
+                if t not in allowed_types:
+                    print(
+                        '[W] Account \'%s\' has optional field of invalid type: \'%s\' must be one of %s. Using default value %s' % \
+                        (account_name, key, types, default_value)
+                    )
+                    acc[key] = default_value
+                    continue
+            # log
+            print('[I] Added account \'%s\' (login \'%s\')' % (account_name, acc['login']))
+        # return
+        return j
+    except:
+        try:
+            with open(path, 'w') as f:
+                f.write(json.dumps(default, indent=4))
+            print('[!] Saved default config to %s' % path)
+        except:
+            print('[!] Failed to save default config to %s' % path)
+        return None
diff --git a/hubot.py b/hubot.py
new file mode 100644
index 0000000..04e8f83
--- /dev/null
+++ b/hubot.py
@@ -0,0 +1,233 @@
+''' HUman BOT '''
+
+import asyncio
+
+from telethon import TelegramClient, events
+import html
+
+import robot
+import utils
+
+# active sessions
+sessions = {}
+# available mods
+_mods = {}
+
+class AuthData:
+    def __init__(self, phone: str, account_name: str):
+        self.name = account_name
+        self.phone = phone
+        self.q = asyncio.Queue()
+        self.waiting = False
+
+    async def get_phone(self) -> str:
+        ''' Workaround.
+            It is required, because TelegramClient will treat get_password and get_code
+            as coroutines only if coroutine is passed for phone number.
+        '''
+        return self.phone
+
+    async def __get_data(self, data_name: str) -> str | None:
+        ''' Get data using Telegram management bot '''
+        # already waiting
+        if self.waiting:
+            await asyncio.sleep(1)
+            return None
+        # waiting now
+        self.waiting = True
+        # request
+        try:
+            # log
+            print('[I] Requesting %s for account \'%s\'...' % (data_name, self.name))
+            # send message to admin
+            text = '<b>Session %s requires %s!</b>' % (html.escape(self.name), data_name)
+            text += '\nSend it like this:'
+            text += '\n\n<code>/auth %s [%s HERE]</code>' % (html.escape(self.name), data_name.upper())
+            text += '\n\nBe aware that Telegram has protection' \
+                    + ' which prohibits sharing your credentials via Telegram.' \
+                    + ' You have to put underscore as second symbol in order' \
+                    + ' to evade this protection. For example, <code>12345</code>' \
+                    + ' becomes <code>1_2345</code>.'
+            await robot.send_to_admin(text, parse_mode='HTML')
+            # wait for data
+            data = await self.q.get()
+            # remove second symbol
+            data = data.strip()
+            data = data[0] + data[2:]
+            self.waiting = False
+            return data
+        except:
+            self.waiting = False
+            return None
+
+    async def get_password(self) -> str | None:
+        ''' Get password using Telegram bot '''
+        return await self.__get_data('password')
+
+    async def get_code(self):
+        ''' Get code using Telegram bot '''
+        return await self.__get_data('OTP')
+    
+    async def provide_data(self, data: str) -> bool:
+        ''' Provide data from other tasks '''
+        if not self.waiting:
+            return False
+        self.waiting = False
+        await self.q.put(data)
+        return True
+
+async def _cb_new_message(event) -> None:
+    ''' Handle new message '''
+    # get the client
+    client = event.client
+    name = client.session_name
+    # get message text
+    msg_text = None
+    msg_word = None
+    try:
+        m = event.message
+        msg_text = m.message
+        msg_word = msg_text.split(' ')[0].lower()
+    except:
+        pass
+    # tasks
+    tasks = []
+    # pass the event to all mods interested in it
+    for mod_name in _mods:
+        # mod
+        mod = _mods[mod_name]
+        try:
+            # the mod matches the message?
+            if mod.mod_get_mighty() or msg_word in mod.mod_get_tags():
+                tasks.append(
+                    asyncio.create_task(
+                        mod.mod_new_message(sessions[name], event)
+                    )
+                )
+        except:
+            utils.pex()
+    # wait for all tasks to complete
+    while tasks:
+        done, pending = await asyncio.wait(tasks)
+        tasks = pending
+
+async def _session_task(session: dict) -> None:
+    ''' Task that manages the session '''
+    # log
+    print('[I] Started session \'%s\'' % session['name'])
+    # client
+    client = session['client']
+    # tasks to monitor
+    to_monitor = {}
+    to_monitor['stop'] = asyncio.create_task(session['stop_event'].wait())
+    to_monitor['bot_start'] = asyncio.create_task(
+        client.start(
+            session['auth_data'].get_phone,
+            password=session['auth_data'].get_password,
+            code_callback=session['auth_data'].get_code,
+        )
+    )
+    # whether to continue work
+    to_work = True
+    # session loop
+    while to_work:
+        # id is unknown and we are authorized
+        if 'bot_start' not in to_monitor and 'bot_get_me' not in to_monitor and session['uid'] is None:
+            to_monitor['bot_get_me'] = asyncio.create_task(
+                client.get_me()
+            )
+        # what to wait for
+        aws = [to_monitor[k] for k in to_monitor]
+        # wait
+        done, pending = await asyncio.wait(aws, return_when=asyncio.FIRST_COMPLETED)
+        # stop
+        if to_monitor['stop'] in done:
+            to_work = False
+        # get_me
+        if 'bot_get_me' in to_monitor and to_monitor['bot_get_me'] in done:
+            session['uid'] = to_monitor['bot_get_me'].result().id
+        # delete completed tasks
+        for k in dict(to_monitor):
+            if to_monitor[k] in done:
+                del to_monitor[k]
+    # log
+    print('[I] Stopping session \'%s\'' % session['name'])
+    # cancel remaining tasks
+    for k in dict(to_monitor):
+        try:
+            to_monitor[k].cancel()
+        except:
+            pass
+        del to_monitor[k]
+
+
+async def add_session(name: str, config: dict) -> bool:
+    ''' Start Telegram user session '''
+    global sessions
+
+    # sessions already exists
+    if name in sessions:
+        return False
+    # login
+    login = config['accounts'][name]['login']
+    # directory 'sessions' does not exist
+    if not utils.ensure_dir('sessions'):
+        print('[!] Can\'t ensure \'sessions\' directory existance!')
+        return False
+    # client
+    client = TelegramClient(
+        'sessions/%s' % name,
+        api_id = config['tg_api_id'],
+        api_hash = config['tg_api_hash'],
+        connection_retries=None,
+        auto_reconnect=True
+    )
+    client.session_name = name
+    client.add_event_handler(_cb_new_message, events.NewMessage)
+
+    # session info
+    session = {
+        'uid': None,
+        'config': config,
+        'name': name,
+        'login': login,
+        'client': client,
+        'stop_event': asyncio.Event(),
+        'queue': asyncio.Queue(),
+        'auth_data': AuthData(login, name),
+        'task': None
+    }
+    # start the task
+    session['task'] = asyncio.create_task(_session_task(session))
+    sessions[name] = session
+    # quit
+    return True
+
+async def stop_all() -> None:
+    ''' Stop all sessions '''
+    global sessions
+    # stop all
+    for k in sessions:
+        s = sessions[k]
+        s['stop_event'].set()
+        await s['task']
+    # cleanup
+    sessions = []
+
+async def provide_auth_data(account_name: str, data: str) -> bool:
+    ''' Provide authentication data for account '''
+    # no such account
+    if account_name not in sessions:
+        return False
+    # provide
+    return await sessions[account_name]['auth_data'].provide_data(data)
+
+def set_mods(mods: dict) -> None:
+    ''' Set dict of available mods. '''
+    global _mods
+    _mods = dict(mods)
+
+def unset_mods() -> None:
+    ''' Remove available mods. '''
+    global _mods
+    _mods = {}
diff --git a/main.py b/main.py
new file mode 100644
index 0000000..83b5609
--- /dev/null
+++ b/main.py
@@ -0,0 +1,88 @@
+''' Application Entry Point '''
+
+import importlib
+import asyncio
+import signal
+import os
+
+import utils
+import robot
+import hubot
+import config
+
+# get list of mods
+_mods = {}
+# import all mods
+for m in utils.get_all_mods():
+    _mods[m] = importlib.import_module(m)
+
+# application config
+_config = None
+
+# task of termination routine
+_termination_task = None
+# termination event
+_termination_event = None
+
+async def set_termination_event() -> None:
+    ''' Just set the termination event '''
+    _termination_event.set()
+
+def signal_handler() -> None:
+    ''' Start termination task '''
+    global _termination_task
+    print()
+
+    # already terminating - suicide
+    if _termination_task is not None:
+        print('[!] Suiciding!')
+        os.kill(os.getpid(), signal.SIGKILL)
+    # not suicide yet
+    print('[I] Trying to terminate gracefully...')
+    _termination_task = asyncio.ensure_future(set_termination_event())
+
+
+async def main() -> None:
+    global _config, _termination_event
+    print('[I] tg-utility')
+
+    # create termination event
+    _termination_event = asyncio.Event()
+
+    # setup the signal handlers
+    loop = asyncio.get_event_loop()
+    loop.add_signal_handler(signal.SIGINT, signal_handler)
+    loop.add_signal_handler(signal.SIGTERM, signal_handler)
+
+    # load the config
+    _config = config.read_config('config.json')
+    if type(_config) is not dict:
+        print('[!] Invalid config, can\'t continue')
+        return
+    
+    # start the bot
+    await robot.start(_config)
+    # start all hubots
+    for name in _config['accounts']:
+        await hubot.add_session(name, _config)
+    # initialize all mods
+    for mod in _mods:
+        await _mods[mod].mod_init(_config)
+    # set available mods in hubot
+    hubot.set_mods(_mods)
+
+    # wait for termination event to happen
+    await _termination_event.wait()
+
+    # unset available mods in hubot
+    hubot.unset_mods()
+    # deinitialize all mods
+    for mod in _mods:
+        await _mods[mod].mod_deinit()
+    # stop all sessions
+    await hubot.stop_all()
+    # stop the bot
+    await robot.stop()
+
+if __name__ == '__main__':
+    asyncio.run(main())
diff --git a/mod_basic.py b/mod_basic.py
new file mode 100644
index 0000000..0b88ce4
--- /dev/null
+++ b/mod_basic.py
@@ -0,0 +1,55 @@
+''' Basic functions mod '''
+
+import asyncio
+
+from telethon import events
+from telethon.tl.types import PeerUser
+
+import utils
+
+_config = None
+
+async def mod_init(config: dict) -> bool:
+    ''' Initialize the mod '''
+    global _config
+    _config = config
+    print('[I] mod_basic is initialized')
+
+async def mod_deinit() -> None:
+    ''' Deinitialize the mod '''
+    print('[I] mod_basic is deinitialized')
+
+def mod_get_mighty() -> bool:
+    ''' Mod is called 'mighty' if it receives all messages '''
+    return False
+
+def mod_get_tags() -> None:
+    ''' Get tags used by the mod '''
+    return ['base']
+
+async def mod_new_message(session, event) -> None:
+    ''' Handle new message '''
+    try:
+        # get the message
+        msg = event.message
+        # not outgoing - do not process
+        if not msg.out:
+            return
+        # peer must be user
+        peer = msg.peer_id
+        if type(peer) is not PeerUser:
+            return
+
+        # get the text
+        text = msg.message
+        # get args
+        args = [i for i in text.split(' ') if i][1:]
+        # no args
+        if not args:
+            response_text = 'tg-utility available mods:'
+            mods = utils.get_all_mods()
+            for mod in mods:
+                response_text += '\n  - %s' % mod
+            await event.reply(message=response_text)
+    except:
+        utils.pex()
diff --git a/mod_video_downloader.py b/mod_video_downloader.py
new file mode 100644
index 0000000..03003ff
--- /dev/null
+++ b/mod_video_downloader.py
@@ -0,0 +1,404 @@
+''' mod_video_downloader for tg-utility '''
+
+import json
+import time
+import select
+import shutil
+import asyncio
+import traceback
+import subprocess
+import os
+
+from telethon import events
+from telethon.tl.types import PeerUser
+from telethon.tl.types import DocumentAttributeVideo
+
+import utils
+
+# application config
+_config = None
+# cached video qualities
+_cached_qualities = {
+    '03dcdde34c18d6128cf906a10365f014': {
+        'url': 'https://www.pornhub.com/view_video.php?viewkey=65edb3a6aede0',
+        'format': '240p',
+        'ext': 'mp4'
+    }
+}
+
+
+def _get_all_qualities_raw(url: str, proxy: bool, timeout: float = 20) -> dict | str:
+    ''' Get all video qualities as dict '''
+    try:
+        # prepare arguments
+        args = [
+            utils.which('youtube-dl'),
+            '-J',
+            url
+        ]
+        if proxy:
+            args = [utils.which('proxychains4')] + args
+        # start the process
+        cp = subprocess.run(
+            args,
+            capture_output=True,
+            timeout=timeout
+        )
+        # check the result
+        txt = cp.stdout.decode(encoding='utf-8')
+        try:
+            j = json.loads(txt)
+        except:
+            return cp.stderr.decode(encoding='ascii')
+        # dict to return
+        res = {}
+        # one format only - convert to many
+        if 'formats' not in j:
+            j['formats'] = [{
+                'format_id': j['format_id'],
+                'ext': j['ext']
+            }]
+        # check all formats
+        for f in j['formats']:
+            obj = {
+                'url': url,
+                'format': f['format_id'],
+                'ext': f['ext'],
+                '_added': time.time()
+            }
+            cache_id = utils.get_md5('\n'.join([str(obj[i]) for i in obj if i[0] != '_']))
+            _cached_qualities[cache_id] = obj
+            res[cache_id] = obj
+        return res
+    except subprocess.TimeoutExpired:
+        return 'Request timed out'
+    except:
+        return traceback.format_exc()
+
+async def _get_all_qualities(url: str, proxy: bool, timeout: float = 20) -> dict | str:
+    ''' Async version '''
+    try:
+        return await asyncio.to_thread(_get_all_qualities_raw, url, proxy, timeout)
+    except:
+        return traceback.format_exc()
+
+def _download_video_raw(url: str, quality_code : str, path: str, proxy: bool, timeout: float = 20) -> str | bool:
+    ''' Download video from URL, use quality code to get info from cache '''
+    try:
+        # no such quality cached
+        if quality_code not in _cached_qualities:
+            return 'Not found quality for specified CODE!'
+        # get data
+        data = _cached_qualities[quality_code]
+
+        # prepare arguments
+        args = [
+            utils.which('youtube-dl'),
+            '--newline',
+            '-f',
+            data['format'],
+            '-o',
+            path,
+            url
+        ]
+        if proxy:
+            args = [utils.which('proxychains4')] + args
+        # start the process
+        cp = subprocess.Popen(
+            args,
+            bufsize=1,
+            stdout=subprocess.PIPE,
+            stderr=subprocess.DEVNULL,
+            universal_newlines=True
+        )
+        # check output every second
+        last_update_time = time.time()
+        last_progress = ''
+        while True:
+            lines = []
+            ready = True
+            while ready:
+                # check if terminated
+                if cp.poll() is not None:
+                    # success
+                    if os.path.isfile(path):
+                        return True
+                    # failure
+                    else:
+                        return 'youtube-dl has exited but output file does not exist'
+                    break
+                ready, _, _ = select.select([cp.stdout], [], [], 0.1)
+                # data available
+                if ready:
+                    l = cp.stdout.readline().strip()
+                    # check if line starts with [download]
+                    if not l.startswith('[download] '):
+                        continue
+                    # split
+                    parts = [i for i in l.replace('[download]', '').split(' ') if i]
+                    # no percent
+                    if '%' not in parts[0]:
+                        continue
+                    # yes percent - that's progress
+                    new_progress = parts[0]
+                    # change
+                    if new_progress != last_progress:
+                        last_progress = new_progress
+                        last_update_time = time.time()
+            time.sleep(1)
+            # timed out
+            if time.time() - last_update_time >= timeout:
+                return "Timed out"
+    except:
+        return traceback.format_exc()
+    
+async def _download_video(url: str, quality_code : str, path: str, proxy: bool, timeout: float = 20) -> str | bool:
+    ''' Async version '''
+    try:
+        return await asyncio.to_thread(_download_video_raw, url, quality_code, path, proxy, timeout)
+    except:
+        return traceback.format_exc()
+
+def _get_video_data_raw(path: str) -> dict | None:
+    ''' Get video duration, width, height and file size '''
+    try:
+        # prepare arguments
+        args = [
+            utils.which('ffprobe'),
+            '-v',
+            'error',
+            '-select_streams',
+            'v:0',
+            '-show_entries',
+            'stream=width,height,duration',
+            '-show_entries',
+            'format=size',
+            '-of',
+            'default=noprint_wrappers=1:nokey=1',
+            path
+        ]
+        # start the process
+        cp = subprocess.run(
+            args,
+            capture_output=True,
+            timeout=10
+        )
+        # check the result
+        txt = None
+        try:
+            txt = cp.stdout.decode(encoding='ascii').strip()
+        except:
+            return None
+        parts = [i.strip() for i in txt.split('\n') if i.strip()]
+        # result
+        return {
+            'width': int(parts[0]),
+            'height': int(parts[1]),
+            'duration': int(float(parts[2])),
+            'size': int(parts[3])
+        }
+    except subprocess.TimeoutExpired:
+        return 'ffprobe timed out'
+    except:
+        return traceback.format_exc()
+    
+async def _get_video_data(path: str) -> dict | None:
+    ''' Async version '''
+    try:
+        return await asyncio.to_thread(_get_video_data_raw, path)
+    except:
+        return traceback.format_exc()
+
+def _generate_thumb_raw(video: str, timestamp: int, thumb: str) -> bool:
+    ''' Generates a thumbnail for Telegram '''
+    try:
+        # prepare arguments
+        args = [
+            utils.which('ffmpeg'),
+            '-ss',
+            str(timestamp),
+            '-i',
+            video,
+            '-vf',
+            'thumbnail,scale=\'min(320,iw)\':\'min(320,ih)\':force_original_aspect_ratio=decrease',
+            '-frames:v',
+            '1',
+            thumb
+        ]
+        # start the process
+        cp = subprocess.run(
+            args,
+            capture_output=True,
+            timeout=10
+        )
+        # check the result
+        txt = None
+        try:
+            txt = cp.stdout.decode(encoding='ascii').strip()
+            txt = cp.stderr.decode(encoding='ascii').strip()
+        except:
+            pass
+        parts = [i.strip() for i in txt.split('\n') if i.strip()]
+        # result
+        return os.path.isfile(thumb)
+    except subprocess.TimeoutExpired:
+        return 'ffprobe timed out'
+    except:
+        return traceback.format_exc()
+    return False
+    
+async def _generate_thumb(video: str, timestamp: int, thumb: str) -> dict | None:
+    ''' Async version '''
+    try:
+        return await asyncio.to_thread(_generate_thumb_raw, video, timestamp, thumb)
+    except:
+        return traceback.format_exc()
+    
+
+async def mod_init(config: dict) -> bool:
+    ''' Initialize the mod '''
+    global _config
+    _config = config
+    # delete old temp
+    try:
+        shutil.rmtree('mvd_temp')
+        pass
+    except:
+        pass
+    utils.ensure_dir('mvd_temp')
+    print('[I] mod_video_downloader is initialized')
+
+async def mod_deinit() -> None:
+    ''' Deinitialize the mod '''
+    # delete temp
+    try:
+        shutil.rmtree('mvd_temp')
+        pass
+    except:
+        pass
+    print('[I] mod_video_downloader is deinitialized')
+
+def mod_get_mighty() -> bool:
+    ''' Mod is called 'mighty' if it receives all messages '''
+    return False
+
+def mod_get_tags() -> None:
+    ''' Get tags used by the mod '''
+    return ['mvd', 'mvdl', 'mvdlp', 'mvdd', 'mvddp']
+
+async def mod_new_message(session, event) -> None:
+    ''' Handle new message '''
+    try:
+        # get the message
+        msg = event.message
+        # not outgoing - do not process
+        if not msg.out:
+            return
+        # peer must be user
+        peer = msg.peer_id
+        if type(peer) is not PeerUser:
+            return
+
+        # get the text
+        text = msg.message
+        # get args
+        args = [i for i in text.split(' ') if i]
+        cmd = args[0].lower()
+        args = args[1:]
+        await asyncio.sleep(0.5)
+        # help
+        if cmd == 'mvd':
+            response_text = 'mod_video_downloader:'
+            response_text += '\n- mvdl[p] [URL] - get list of all video qualities'
+            response_text += '\n- mvdd[p] [CODE] - download video'
+            response_text += '\n\nUse \'p\' letter to utilize proxy'
+            await event.reply(message=response_text)
+        # list qualities
+        elif cmd.startswith('mvdl'):
+            if not args:
+                await event.reply(message='No URL!')
+                return
+            await event.reply(message='Checking URL... Please wait, you\'ll be notified if an error happens!')
+            qualities = await _get_all_qualities(' '.join(args), cmd[-1] == 'p')
+            # error
+            if type(qualities) is str:
+                await event.reply(message='Error:\n\n%s' % qualities)
+                return
+            # success
+            result = 'Qualities:'
+            for qid in qualities:
+                data = qualities[qid]
+                result += '\n\n<code>mvdd%s %s</code>' % ('p' if cmd[-1] == 'p' else '', qid)
+                result += '\n- Format: %s' % data['format']
+                result += '\n- Extension: %s' % data['ext']
+            await event.reply(message=result, parse_mode='HTML')
+        # download
+        elif cmd.startswith('mvdd'):
+            if not args:
+                await event.reply(message='No CODE!')
+                return
+            # get the code and check it
+            code = args[-1]
+            if code not in _cached_qualities:
+                await event.reply(message='This code does not exist. Use \'mvdl[p]\' to obtain the code.')
+                return
+            # get video data
+            data = _cached_qualities[code]
+            await event.reply(message='Downloading the video... Please wait, you\'ll be notified if an error happens!')
+            res = await _download_video(data['url'], code, 'mvd_temp/%s.bin' % code, cmd[-1] == 'p')
+            # res is str - error
+            if type(res) is str:
+                utils.rm_glob('mvd_temp/%s.*' % code)
+                await event.reply(message='Failed to download video: %s' % res)
+                return
+            # res is false
+            if not res:
+                utils.rm_glob('mvd_temp/%s.*' % code)
+                await event.reply(message='Something went wrong during downloading...' % res)
+                return
+            # old name and new name
+            old_name = 'mvd_temp/%s.bin' % code
+            new_name = 'mvd_temp/%s.%s' % (code, data['ext'])
+            # rename
+            try:
+                shutil.move(old_name, new_name)
+                pass
+            except:
+                utils.rm_glob('mvd_temp/%s.*' % code)
+                await event.reply(message='Failed to rename downloaded video')
+                return
+            # get video data
+            video_data = await _get_video_data(new_name)
+            if type(video_data) is not dict:
+                utils.rm_glob('mvd_temp/%s.*' % code)
+                await event.reply(message='Failed to use \'ffprobe\' to get video data')
+                return
+            # generate the thumbnail
+            thumb_name = 'mvd_temp/%s.jpg' % code
+            if not await _generate_thumb(new_name, int(video_data['duration'] * 0.75), thumb_name):
+                utils.rm_glob('mvd_temp/%s.*' % code)
+                await event.reply(message='Failed to generate video thumbnail')
+                return
+            # log
+            await event.reply(message='Video is downloaded, thumbnail is generated, uploading it to Telegram...')
+            # send file
+            try:
+                await event.client.send_file(
+                    entity=peer,
+                    file=new_name,
+                    caption='%s' % data['url'],
+                    mime_type=utils.get_mime(data['ext']),
+                    file_size=video_data['size'],
+                    thumb=thumb_name,
+                    supports_streaming=True,
+                    attributes=[DocumentAttributeVideo(
+                        duration=video_data['duration'],
+                        w=video_data['width'],
+                        h=video_data['height']
+                    )]
+                )
+            except:
+                await event.reply(message='Failed to upload video to telegram!')
+            utils.rm_glob('mvd_temp/%s.*' % code)
+    except:
+        utils.pex()
diff --git a/robot.py b/robot.py
new file mode 100644
index 0000000..c166029
--- /dev/null
+++ b/robot.py
@@ -0,0 +1,172 @@
+''' Management bot on Telegram '''
+
+import html
+
+from telegram import Bot, Update
+from telegram.ext import ApplicationBuilder, Application
+from telegram.ext import MessageHandler, CommandHandler
+import telegram.ext.filters as filters
+
+import hubot
+
+
+# application config
+_config : dict = None
+# application
+_app : Application = None
+# bot username
+_username : str = None
+
+async def cmd_auth_handler(update, context) -> None:
+    ''' Callback for /auth '''
+    # objs
+    msg = update.message
+    uid = msg.chat.id
+    # not admin
+    if uid != _config['tg_admin_uid']:
+        await msg.reply_text('Permission denied')
+        return
+    # get args
+    args = context.args
+    if len(args) != 2:
+        await msg.reply_text('Must have two args: ACCOUNT_NAME and AUTH_DATA')
+        return
+    # account and data
+    account_name = args[0]
+    data = args[1]
+    #
+    res = await hubot.provide_auth_data(account_name, data)
+    if res:
+        await msg.reply_text('Authentication data is provided')
+    else:
+        await msg.reply_text('Failed to provide authentication data')
+
+async def cmd_accs_handler(update, context) -> None:
+    ''' Callback for /accs '''
+    # objs
+    msg = update.message
+    uid = msg.chat.id
+    # not admin
+    if uid != _config['tg_admin_uid']:
+        await msg.reply_text('Permission denied')
+        return
+    # prepare
+    accs = _config['accounts']
+    text = '<b>Accounts:</b>'
+    # empty
+    if not accs:
+        text += '\n\n<i>No accounts are added</i>'
+        await msg.reply_text(text, parse_mode='HTML')
+        return
+    # serialize
+    for n in accs:
+        a = accs[n]
+        text += '\n\n<b>Account \'<i>%s</i>\'</b>' % html.escape(n)
+        text += '\n<b>Login:</b> %s' % a['login']
+        text += '\n<b>Enabled mods:</b>'
+        mods = [k for k in a if k.startswith('mod_') and a[k]]
+        if not mods:
+            text += '\n  <i>no mods are enabled</i>'
+        else:
+            for m in mods:
+                text += '\n  - <i>%s</i>' % m
+    # reply
+    await msg.reply_text(text, parse_mode='HTML')
+        
+
+async def text_handler(update, context) -> None:
+    ''' New message callback '''
+    msg = update.message
+    uid = msg.chat.id
+    await msg.reply_text('ok text')
+
+async def start(config: dict) -> bool:
+    ''' Start management bot '''
+    global _config, _app, _username
+    # app already exists
+    if _app is not None:
+        return False
+    # save the config
+    _config = config
+    # create the application
+    _app = ApplicationBuilder().token(_config['management_token']).build()
+
+    # add handlers
+    _app.add_handler(CommandHandler('auth', cmd_auth_handler))
+    _app.add_handler(CommandHandler('accs', cmd_accs_handler))
+    #_app.add_handler(MessageHandler(filters.TEXT, text_handler), 100)
+
+    # initialize it
+    try:
+        await _app.initialize()
+    except:
+        _app = None
+        print('[I] Can\'t initialize robot Application')
+        return False
+
+    # start polling
+    try:
+        await _app.updater.start_polling()
+    except:
+        await _app.shutdown()
+        _app = None
+        print('[!] Can\'t start robot polling')
+        return False
+
+    # start app
+    try:
+        await _app.start()
+    except:
+        await _app.updater.stop()
+        await _app.shutdown()
+        _app = None
+        print('[!] Can\'t start robot Application')
+        return False
+
+    # get our username
+    try:
+        me = await _app.bot.get_me()
+        _username = f'@{me.username}'
+    except:
+        _username = '@???'
+        
+    # log
+    print('[I] Robot (%s) is started' % _username)
+    return True
+
+async def stop() -> bool:
+    ''' Stop management bot '''
+    global _app
+    # not started
+    if _app is None:
+        return True
+    # stop
+    try:
+        await _app.updater.stop()
+        await _app.stop()
+        await _app.shutdown()
+    except:
+        pass
+    # log
+    print('[I] Robot is stopped')
+    return True
+
+async def send_to_admin(text: str, parse_mode: str = None) -> bool:
+    ''' Send text message to admin '''
+    return await send_to(_config['tg_admin_uid'], text, parse_mode)
+
+async def send_to(uid: int, text : str, parse_mode: str = None) -> bool:
+    ''' Send text message to chat '''
+    # no bot
+    if _app is None:
+        return False
+    # send the message
+    try:
+        await _app.bot.send_message(
+            uid,
+            text,
+            parse_mode=parse_mode
+        )
+        return True
+    except:
+        return False
diff --git a/utils.py b/utils.py
new file mode 100644
index 0000000..f279dc4
--- /dev/null
+++ b/utils.py
@@ -0,0 +1,71 @@
+''' Utilities '''
+
+import os
+import time
+import glob
+import shutil
+import hashlib
+import mimetypes
+import traceback
+
+def pex() -> None:
+    ''' Print last exception '''
+    traceback.print_exc()
+
+def ensure_dir(path: str) -> bool:
+    ''' Ensure directory existance.
+        'path' must NOT have trailing slash!
+    '''
+    try:
+        os.makedirs(path, exist_ok=True)
+        return True
+    except:
+        return False
+
+def get_script_dir() -> str:
+    ''' Returns path of this script (utils.py) '''
+    return os.path.dirname(os.path.abspath(__file__))
+
+def get_all_mods() -> list[str]:
+    ''' Get list of all supported mods '''
+    sd = get_script_dir()
+    res = [f for f in os.listdir(sd) if os.path.isfile(os.path.join(sd, f))]
+    res = [f.split('.')[0] for f in res if f.startswith('mod_') and f.endswith('.py')]
+    return res
+
+def get_md5(data: str) -> str:
+    ''' Returns MD5 for data '''
+    md5_hash = hashlib.md5()
+    md5_hash.update(str(data).encode('ascii'))
+    return md5_hash.hexdigest()
+
+
+def get_unique_md5() -> str:
+    ''' Returns unique MD5 '''
+    md5_hash = hashlib.md5()
+    md5_hash.update(str(time.time()).encode('ascii'))
+    return md5_hash.hexdigest()
+
+def which(cmd: str) -> str:
+    ''' Analogue to UNIX which '''
+    return shutil.which(cmd)
+
+def get_mime(ext) -> str:
+    ''' ext must not start with dot '''
+    try:
+        mime_type, _ = mimetypes.guess_type('file.%s' % ext)
+        return mime_type
+    except:
+        return 'video/%s' % ext
+
+def rm_glob(path_glob: str) -> None:
+    ''' Delete files using glob (files only) '''
+    try:
+        files = glob.glob(path_glob)
+        for f in files:
+            try:
+                os.remove(f)
+            except:
+                pass
+    except:
+        pass