Implement a way to deal with failing inline requests

This is due to Telegram raising an error in case bots not
in DC4 try to communicate with chats that live in DC4.

pyrogram/methods/messages/edit_inline_media.py

@@ -22,6 +22,7 @@ from pyrogram import raw
 from pyrogram import types
 from pyrogram import utils
 from pyrogram.scaffold import Scaffold
+from .inline_session import get_session
 
 
 class EditInlineMedia(Scaffold):
@@ -105,9 +106,14 @@ class EditInlineMedia(Scaffold):
             else:
                 media = utils.get_input_media_from_file_id(media.media, media.file_ref, 5)
 
-        return await self.send(
+        unpacked = utils.unpack_inline_message_id(inline_message_id)
+        dc_id = unpacked.dc_id
+
+        session = get_session(self, dc_id)
+
+        return await session.send(
             raw.functions.messages.EditInlineBotMessage(
-                id=utils.unpack_inline_message_id(inline_message_id),
+                id=unpacked,
                 media=media,
                 reply_markup=reply_markup.write() if reply_markup else None,
                 **await self.parser.parse(caption, parse_mode)

pyrogram/methods/messages/edit_inline_reply_markup.py

@@ -20,6 +20,7 @@ from pyrogram import raw
 from pyrogram import types
 from pyrogram import utils
 from pyrogram.scaffold import Scaffold
+from .inline_session import get_session
 
 
 class EditInlineReplyMarkup(Scaffold):
@@ -51,9 +52,15 @@ class EditInlineReplyMarkup(Scaffold):
                     InlineKeyboardMarkup([[
                         InlineKeyboardButton("New button", callback_data="new_data")]]))
         """
-        return await self.send(
+
+        unpacked = utils.unpack_inline_message_id(inline_message_id)
+        dc_id = unpacked.dc_id
+
+        session = get_session(self, dc_id)
+
+        return await session.send(
             raw.functions.messages.EditInlineBotMessage(
-                id=utils.unpack_inline_message_id(inline_message_id),
+                id=unpacked,
                 reply_markup=reply_markup.write() if reply_markup else None,
             )
         )

pyrogram/methods/messages/edit_inline_text.py

@@ -22,6 +22,7 @@ from pyrogram import raw
 from pyrogram import types
 from pyrogram import utils
 from pyrogram.scaffold import Scaffold
+from .inline_session import get_session
 
 
 class EditInlineText(Scaffold):
@@ -72,9 +73,14 @@ class EditInlineText(Scaffold):
                     disable_web_page_preview=True)
         """
 
-        return await self.send(
+        unpacked = utils.unpack_inline_message_id(inline_message_id)
+        dc_id = unpacked.dc_id
+
+        session = get_session(self, dc_id)
+
+        return await session.send(
             raw.functions.messages.EditInlineBotMessage(
-                id=utils.unpack_inline_message_id(inline_message_id),
+                id=unpacked,
                 no_webpage=disable_web_page_preview or None,
                 reply_markup=reply_markup.write() if reply_markup else None,
                 **await self.parser.parse(text, parse_mode)

pyrogram/methods/messages/inline_session.py

@@ -0,0 +1,75 @@
+# Pyrogram - Telegram MTProto API Client Library for Python
+# Copyright (C) 2017-2020 Dan <https://github.com/delivrance>
+#
+# This file is part of Pyrogram.
+#
+# Pyrogram is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as published
+# by the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# Pyrogram is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with Pyrogram.  If not, see <http://www.gnu.org/licenses/>.
+
+from asyncio import Lock
+
+import pyrogram
+from pyrogram import raw
+from pyrogram.errors import AuthBytesInvalid
+from pyrogram.session import Session
+from pyrogram.session.auth import Auth
+
+lock = Lock()
+session = None
+dest_dc_id = 4
+
+
+async def get_session(client: "pyrogram.Client", dc_id: int):
+    if dc_id != dest_dc_id:
+        return client
+
+    if dc_id == await client.storage.dc_id():
+        return client
+
+    async with lock:
+        global session
+
+        if session is not None:
+            return session
+
+        session = Session(
+            client, dest_dc_id,
+            await Auth(client, dest_dc_id, False).create(),
+            False, is_media=True
+        )
+
+        await session.start()
+
+        for _ in range(3):
+            exported_auth = await session.send(
+                raw.functions.auth.ExportAuthorization(
+                    dc_id=dest_dc_id
+                )
+            )
+
+            try:
+                await session.send(
+                    raw.functions.auth.ImportAuthorization(
+                        id=exported_auth.id,
+                        bytes=exported_auth.bytes
+                    )
+                )
+            except AuthBytesInvalid:
+                continue
+            else:
+                break
+        else:
+            await session.stop()
+            raise AuthBytesInvalid
+
+        return session