patch 6493c04f9d8bdb7b1d2c037fdd66c337a7a91af5

Author: E. Bosch <presidev@AT@gmail.com>

Date: Sun May 31 00:26:34 CEST 2026

* utils: Modify sanitize_filename(): convert invalid chars to hex representation,

this makes the filenames deterministic for the same session,

and helps to not download a file more than once

patch dd18dbebc3877faa7fe1c7f1257fb3a4048aab32

Author: E. Bosch <presidev@AT@gmail.com>

Date: Sat May 30 22:25:32 CEST 2026

* utils: In add_filename() don't put a final dot if there is no extension in the filename

patch feebc9eac596c484be6e5f67934196e64d52beeb

Author: E. Bosch <presidev@AT@gmail.com>

Date: Sat May 30 21:33:57 CEST 2026

* telegram: Refactor download media routine

optimized to download files only once

utils: Add session tokens for unnamed files

--- old-irgramd/telegram.py 2026-06-09 14:34:43.891753862 +0200

+++ new-irgramd/telegram.py 2026-06-09 14:34:43.891753862 +0200

@@ -23,7 +23,7 @@

from include import CHAN_MAX_LENGTH, NICK_MAX_LENGTH

from irc import IRCUser

from utils import sanitize_filename, add_filename, is_url_equiv, extract_url, get_human_size, get_human_duration

-from utils import get_highlighted, fix_braces, format_timestamp, pretty, current_date

+from utils import get_highlighted, fix_braces, format_timestamp, pretty, current_date, token

import emoji2emoticon as e

# Test IP table

@@ -44,6 +44,8 @@

self.notice_size = settings['download_notice'] * 1048576

self.media_dir = settings['media_dir']

self.media_url = settings['media_url']

+ if self.media_url[-1:] != '/':

+ self.media_url += '/'

self.upload_dir = settings['upload_dir']

self.api_id = settings['api_id']

self.api_hash = settings['api_hash']

@@ -59,7 +61,8 @@

self.geo_url = settings['geo_url']

if not settings['emoji_ascii']:

e.emo = {}

- self.media_cn = 0

+ self.token = token('+0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz')

+ self.filename_token = self.token.gen_token(5)

self.irc = irc

self.authorized = False

self.id = None

@@ -1028,30 +1031,25 @@

if not self.download:

return ''

if filename:

- idd_file = add_filename(filename, mid)

- new_file = sanitize_filename(idd_file)

- new_path = os.path.join(self.telegram_media_dir, new_file)

- if os.path.exists(new_path):

- local_path = new_path

+ aux_file = filename

+ else:

+ if hasattr(message, 'file') and message.file is not None:

+ aux_file = self.filename_token + message.file.ext

else:

- await self.notice_downloading(size, relay_attr)

- local_path = await message.download_media(new_path)

- if not local_path: return ''

+ aux_file = self.filename_token

+

+ idd_file = add_filename(aux_file, mid)

+ new_file = sanitize_filename(idd_file)

+ new_path = os.path.join(self.telegram_media_dir, new_file)

+ if os.path.exists(new_path) and (size == 0 or size == os.path.getsize(new_path)):

+ local_path = new_path

else:

await self.notice_downloading(size, relay_attr)

- local_path = await message.download_media(self.telegram_media_dir)

+ local_path = await message.download_media(new_path)

if not local_path: return ''

- filetype = os.path.splitext(local_path)[1]

- gen_file = str(self.media_cn) + filetype

- idd_file = add_filename(gen_file, mid)

- new_file = sanitize_filename(idd_file)

- self.media_cn += 1

- new_path = os.path.join(self.telegram_media_dir, new_file)

if local_path != new_path:

os.replace(local_path, new_path)

- if self.media_url[-1:] != '/':

- self.media_url += '/'

return self.media_url + new_file

async def notice_downloading(self, size, relay_attr):

--- old-irgramd/utils.py 2026-06-09 14:34:43.891753862 +0200

+++ new-irgramd/utils.py 2026-06-09 14:34:43.891753862 +0200

@@ -14,10 +14,11 @@

import zoneinfo

import difflib

import logging

+import random

# Constants

-FILENAME_INVALID_CHARS = re.compile('[/{}<>()"\'\\|&#%?]')

+FILENAME_INVALID_CHARS = re.compile('[\0-\x1F/{}<>"\'\\|*&#%?\x7F]')

SIMPLE_URL = re.compile('http(|s)://[^ ]+')

from include import MAX_LINE

@@ -86,22 +87,23 @@

return messages_limited

def sanitize_filename(fn):

- cn = str(sanitize_filename.cn)

- new_fn, ns = FILENAME_INVALID_CHARS.subn(cn, fn)

- if ns:

- sanitize_filename.cn += 1

- return new_fn.strip('-').replace(' ','_')

-sanitize_filename.cn = 0

+ def hexize(m):

+ return '-{:x}-'.format(ord(m.group(0)))

+

+ new_fn = FILENAME_INVALID_CHARS.sub(hexize, fn)

+ return new_fn.lstrip('-').replace(' ','_')

def add_filename(filename, add):

if add:

aux = filename.rsplit('.', 1)

name = aux[0]

+ last_dot = '.'

try:

ext = aux[1]

except:

ext = ''

- return '{}-{}.{}'.format(name, add, ext)

+ last_dot = ''

+ return '{}-{}{}{}'.format(name, add, last_dot, ext)

else:

return filename

@@ -240,3 +242,15 @@

def pretty(object):

return object.stringify() if LOGL.debug and object else object

+

+class token:

+ def __init__(self, alpha):

+ self.alpha = alpha

+ self.long_alpha = len(alpha)

+

+ def gen_token(self, long_token):

+ if long_token == 1:

+ return self.alpha[random.randrange(self.long_alpha)]

+ else:

+ aux = self.gen_token(long_token - 1)

+ return aux + self.alpha[random.randrange(self.long_alpha)]