patch 10725c4fff915a1c95e95b5f998f26c97b146d5e
Author: E. Bosch <presidev@AT@gmail.com>
Date:   Wed Jan 22 00:35:42 CET 2025
  * telegram: Try to fix ChatAdminRequiredError when getting participants from a channel
  reported in https://github.com/prsai/irgramd/issues/1
diff -rN -u old-irgramd/telegram.py new-irgramd/telegram.py
--- old-irgramd/telegram.py	2025-04-19 16:39:47.621643125 +0200
+++ new-irgramd/telegram.py	2025-04-19 16:39:47.621643125 +0200
@@ -177,18 +177,21 @@
         self.irc.iid_to_tid[chan] = chat.id
         self.irc.irc_channels[chan] = set()
         # Add users from the channel
-        async for user in self.telegram_client.iter_participants(chat.id):
-            user_nick = self.set_ircuser_from_telegram(user)
-            if not user.is_self:
-                self.irc.irc_channels[chan].add(user_nick)
-            # Add admin users as ops in irc
-            if isinstance(user.participant, tgty.ChatParticipantAdmin) or \
-               isinstance(user.participant, tgty.ChannelParticipantAdmin):
-                self.irc.irc_channels_ops[chan].add(user_nick)
-            # Add creator users as founders in irc
-            elif isinstance(user.participant, tgty.ChatParticipantCreator) or \
-                 isinstance(user.participant, tgty.ChannelParticipantCreator):
-                self.irc.irc_channels_founder[chan].add(user_nick)
+        try:
+            async for user in self.telegram_client.iter_participants(chat.id):
+                user_nick = self.set_ircuser_from_telegram(user)
+                if not user.is_self:
+                    self.irc.irc_channels[chan].add(user_nick)
+                # Add admin users as ops in irc
+                if isinstance(user.participant, tgty.ChatParticipantAdmin) or \
+                   isinstance(user.participant, tgty.ChannelParticipantAdmin):
+                    self.irc.irc_channels_ops[chan].add(user_nick)
+                # Add creator users as founders in irc
+                elif isinstance(user.participant, tgty.ChatParticipantCreator) or \
+                     isinstance(user.participant, tgty.ChannelParticipantCreator):
+                    self.irc.irc_channels_founder[chan].add(user_nick)
+        except:
+            self.logger.warning('Not possible to get participants of channel %s', channel)
 
     def get_telegram_nick(self, user):
         nick = (user.username