patch 3fe74b2337a9d66bddd47052220c413836cb05f9
Author: E. Bosch <presidev@AT@gmail.com>
Date:   Sun May 14 00:39:42 CEST 2023
  * service: Add "get" command to retrieve a specific message
diff -rN -u old-irgramd/service.py new-irgramd/service.py
--- old-irgramd/service.py	2024-10-23 04:30:42.395534228 +0200
+++ new-irgramd/service.py	2024-10-23 04:30:42.395534228 +0200
@@ -15,6 +15,7 @@
         { # Command         Handler                       Arguments  Min Max
             'code':        (self.handle_command_code,                 1,  1),
             'dialog':      (self.handle_command_dialog,               1,  2),
+            'get':         (self.handle_command_get,                  2,  2),
             'help':        (self.handle_command_help,                 0,  1),
             'history':     (self.handle_command_history,              1,  3),
             'mark_read':   (self.handle_command_mark_read,            1,  1),
@@ -115,6 +116,30 @@
             )
         return reply
 
+    async def handle_command_get(self, peer=None, mid=None, help=None):
+        if not help:
+            id = self.tg.mid.id_to_num_offset(mid)
+            peer_id, reply = self.get_peer_id(peer.lower())
+            if reply: return reply
+
+            msg = await self.tg.telegram_client.get_messages(entity=peer_id, ids=id)
+            if msg is None:
+                reply = ('Message not found',)
+                return reply
+            await self.tg.handle_telegram_message(event=None, message=msg, history=True)
+            reply = ()
+            return reply
+
+        else: # HELP.brief or HELP.desc (first line)
+            reply = ('   get         Get a message by id and peer',)
+        if help == HELP.desc:  # rest of HELP.desc
+            reply += \
+            (
+              '   get <peer> <compact_id>',
+              'Get one message from peer with the compact ID',
+            )
+        return reply
+
     async def handle_command_help(self, help_command=None, help=None):
 
         start_help = ('*** Telegram Service Help ***',)
diff -rN -u old-irgramd/telegram.py new-irgramd/telegram.py
--- old-irgramd/telegram.py	2024-10-23 04:30:42.395534228 +0200
+++ new-irgramd/telegram.py	2024-10-23 04:30:42.395534228 +0200
@@ -762,3 +762,11 @@
             return sum + aux
         else:
             return 0
+
+    def id_to_num_offset(self, mid):
+        if self.mesg_base is not None:
+            id_rel = self.id_to_num(mid)
+            id = id_rel + self.mesg_base
+        else:
+            id = None
+        return id