FilePart0Missing Error While Editing Inline Medias.

[StarkGang]

Checklist

• [X] The error is in the library's code, and not in my own.
• [X] I have searched for this issue before posting it and there isn't a duplicate.
• [X] I ran pip install -U https://github.com/LonamiWebs/Telethon/archive/master.zip and triggered the bug in the latest version.

Code that causes the issue

from telethon import TelegramClient, events, Button
client = TelegramClient("..", 1, "...").start(bot_token="...")

@client.on(events.NewMessage)
async def _(e):
  await e.reply("...", buttons=Button.inline('Click me', b'clk1'))

@client.on(events.callbackquery.CallbackQuery(data=re.compile(b"clk1")))
async def _(e):
  uploaded_file = await client.upload_file(
  		file='test.txt'
        )
  await e.edit(file=uploaded_file)

Traceback

- telethon.client.telegrambaseclient - INFO - Exporting auth for new borrowed sender in DcOption(id=2, ip_address='149.154.167.51', port=443, ipv6=False, media_only=False, tcpo_only=False, cdn=False, static=False, secret=None)
- telethon.client.uploads - INFO - Uploading file of 9781769 bytes in 75 chunks of 131072
- telethon.errors.rpcerrorlist.FilePart0MissingError: File part 0 missing (caused by EditInlineBotMessageRequest)
- telethon.client.telegrambaseclient - INFO - Disconnecting borrowed sender for DC 2
- telethon.network.mtprotosender - INFO - Disconnecting from 149.154.167.51:443/TcpFull...
- telethon.network.mtprotosender - INFO - Disconnection from 149.154.167.51:443/TcpFull complete!

[Lonami]

I cannot reproduce this issue. Does it need to be tested in a private conversation, small group chat, megagroup channel, or broadcast channel? Does the bot's datacenter matter? Does the group's datacenter matter? Does the datacenter of the user making the query matter?

[StarkGang]

I got this error on a mega group, where the owner's Dc is 5 and bot's Dc is also 5 and I got this error my Dc is also 5.

[Lonami]

Please upload or otherwise provide the contents of the file somehow so that I can test with a file that triggers the bug.

[StarkGang]

Its a media file. happens with videos mostly.

[New-dev0]

@Lonami, I am too having this Error, I am. Trying to edit media send via Inline Queries, it's Occuring with Text files too, (while when used with send_file, they are fine)

Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/telethon/client/updates.py", line 454, in _dispatch_update
    await callback(event)
  File "/root/TeamUltroid/assistant/othervars.py", line 62, in send
    await eve.edit(file=plugin, buttons=buttons)
  File "/usr/local/lib/python3.9/site-packages/telethon/events/callbackquery.py", line 316, in edit
    return await self._client.edit_message(
  File "/usr/local/lib/python3.9/site-packages/telethon/client/messages.py", line 1148, in edit_message
    return await self._call(sender, request)
  File "/usr/local/lib/python3.9/site-packages/telethon/client/users.py", line 79, in _call
    result = await future
telethon.errors.rpcerrorlist.FilePart0MissingError: File part 0 missing (caused by EditInlineBotMessageRequest)

It's going for if statement ( dc_id are not same) - https://github.com/LonamiWebs/Telethon/blob/6b53d45ce27510335f5f33db510a4ee4e3a29a91/telethon/client/messages.py#L1120

Maybe something with invoking request from right DC

[Lonami]

Yeah, maybe both the upload and request have to be invoked in the other DC.

[New-dev0]

Yeah, maybe both the upload and request have to be invoked in the other DC.

Lonami, how it can be achieved?

[Lonami]

Presumably, the exported sender needs to be used for the upload too, and not just the request invocation.

[Deer-Spangle]

Just encountered the same bug, in a public channel (with a handle).

A log, if that helps at all. I was replacing an image with an mp4

2021-06-09 23:34:12,929:INFO:fa_search_bot.sites.fa_submission:Loading gif from cache, submission ID 42264312
2021-06-09 23:34:12,934:INFO:usage:Pretty gif: from cache
2021-06-09 23:34:12,934:INFO:telethon.client.uploads:Uploading file of 709092 bytes in 6 chunks of 131072
2021-06-09 23:34:13,678:INFO:telethon.network.mtprotosender:Connecting to 149.154.167.51:443/TcpFull...
2021-06-09 23:34:13,704:INFO:telethon.network.mtprotosender:Connection to 149.154.167.51:443/TcpFull complete!
2021-06-09 23:34:13,757:ERROR:fa_search_bot.sites.fa_submission:Failed to convert gif to video. Submission ID: 42264312
Traceback (most recent call last):
  File "/home/spangle/FA-search-bot/fa_search_bot/sites/fa_submission.py", line 309, in _send_gif
    await send_partial(open(filename, "rb"))
  File "/home/spangle/FA-search-bot/fa_search_bot/sites/fa_submission.py", line 247, in send_partial
    await client.edit_message(
  File "/home/spangle/FA-search-bot/venv/lib/python3.8/site-packages/telethon/client/messages.py", line 1093, in edit_message
    return await self._call(sender, request)
  File "/home/spangle/FA-search-bot/venv/lib/python3.8/site-packages/telethon/client/users.py", line 79, in _call
    result = await future
telethon.errors.rpcerrorlist.FilePart0MissingError: File part 0 missing (caused by EditInlineBotMessageRequest)
2021-06-09 23:34:13,981:INFO:telethon.client.uploads:Uploading file of 122679 bytes in 1 chunks of 131072

[Lonami]

I've tried uploading the file to a different datacenter, but I constantly get PHONE_MIGRATED, so that does not seem to be the solution.

Support upload to other DCs patch

diff --git a/telethon/client/messages.py b/telethon/client/messages.py
index 6bdb7f5d..367e3180 100644
--- a/telethon/client/messages.py
+++ b/telethon/client/messages.py
@@ -1114,9 +1114,11 @@ class MessageMethods:
                 # or
                 await client.edit_message(message, 'hello!!!')
         """
+        dc_id = None
         if isinstance(entity, types.InputBotInlineMessageID):
             text = text or message
             message = entity
+            dc_id = message.dc_id
         elif isinstance(entity, types.Message):
             text = message  # Shift the parameters to the right
             message = entity
@@ -1124,11 +1126,15 @@ class MessageMethods:
 
         if formatting_entities is None:
             text, formatting_entities = await self._parse_message_text(text, parse_mode)
-        file_handle, media, image = await self._file_to_media(file,
-                supports_streaming=supports_streaming,
-                thumb=thumb,
-                attributes=attributes,
-                force_document=force_document)
+
+        file_handle, media, image = await self._file_to_media(
+            file,
+            supports_streaming=supports_streaming,
+            thumb=thumb,
+            attributes=attributes,
+            force_document=force_document,
+            dc_id=dc_id
+        )
 
         if isinstance(entity, types.InputBotInlineMessageID):
             request = functions.messages.EditInlineBotMessageRequest(
@@ -1141,10 +1147,10 @@ class MessageMethods:
             )
             # Invoke `messages.editInlineBotMessage` from the right datacenter.
             # Otherwise, Telegram will error with `MESSAGE_ID_INVALID` and do nothing.
-            exported = self.session.dc_id != entity.dc_id
+            exported = self.session.dc_id != dc_id
             if exported:
                 try:
-                    sender = await self._borrow_exported_sender(entity.dc_id)
+                    sender = await self._borrow_exported_sender(dc_id)
                     return await self._call(sender, request)
                 finally:
                     await self._return_exported_sender(sender)
diff --git a/telethon/client/uploads.py b/telethon/client/uploads.py
index 544b7087..b0c442de 100644
--- a/telethon/client/uploads.py
+++ b/telethon/client/uploads.py
@@ -35,6 +35,30 @@ class _CacheType:
         return self._cls == other
 
 
+# TODO use this as opposed to borrow sender? (context manager)
+class _Sender:
+    def __init__(self, client, dc_id):
+        self._client = client
+        self._dc_id = None if dc_id is None or client.session.dc_id == dc_id else dc_id
+        self._sender = None
+
+    async def __aenter__(self):
+        if self._dc_id is not None:
+            self._sender = await self._client._borrow_exported_sender(self._dc_id)
+        return self
+
+    async def __aexit__(self, exc_type, exc_val, exc_tb):
+        if self._sender:
+            await self._client._return_exported_sender(self._sender)
+
+    async def invoke(self, *args, **kwargs):
+        if self._sender:
+            print('CALLING ON EXPORTED', self._dc_id, args, kwargs)
+            return await self._client._call(self._sender, *args, **kwargs)
+        else:
+            return await self._client(*args, **kwargs)
+
+
 def _resize_photo_if_needed(
         file, is_image, width=1280, height=1280, background=(255, 255, 255)):
 
@@ -473,7 +497,9 @@ class UploadMethods:
             use_cache: type = None,
             key: bytes = None,
             iv: bytes = None,
-            progress_callback: 'hints.ProgressCallback' = None) -> 'types.TypeInputFile':
+            progress_callback: 'hints.ProgressCallback' = None,
+            dc_id: int = None
+    ) -> 'types.TypeInputFile':
         """
         Uploads a file to Telegram's servers, without sending it.
 
@@ -527,6 +553,9 @@ class UploadMethods:
                 A callback function accepting two parameters:
                 ``(sent bytes, total)``.
 
+            dc_id (`int`, optional):
+                Upload the file to a different DC. You probably shouldn't use this.
+
         Returns
             :tl:`InputFileBig` if the file size is larger than 10MB,
             `InputSizedFile <telethon.tl.custom.inputsizedfile.InputSizedFile>`
@@ -552,7 +581,8 @@ class UploadMethods:
             return file  # Already uploaded
 
         pos = 0
-        async with helpers._FileStream(file, file_size=file_size) as stream:
+        async with helpers._FileStream(file, file_size=file_size) as stream, \
+                _Sender(self, dc_id) as sender:
             # Opening the stream will determine the correct file size
             file_size = stream.file_size
 
@@ -625,7 +655,7 @@ class UploadMethods:
                     request = functions.upload.SaveFilePartRequest(
                         file_id, part_index, part)
 
-                result = await self(request)
+                result = await sender.invoke(request)
                 if result:
                     self._log[__name__].debug('Uploaded %d/%d',
                                               part_index + 1, part_count)
@@ -648,7 +678,8 @@ class UploadMethods:
             self, file, force_document=False, file_size=None,
             progress_callback=None, attributes=None, thumb=None,
             allow_cache=True, voice_note=False, video_note=False,
-            supports_streaming=False, mime_type=None, as_image=None):
+            supports_streaming=False, mime_type=None, as_image=None,
+            dc_id=None):
         if not file:
             return None, None, None

[New-dev0]

Lonami, I just Tried What you did, and got KeyError.

Complete TraceBack - https://hastebin.com/udavanapic.sql

[Lonami]

Seems connection failed on __aenter__ so the exit fails too.

[New-dev0]

Editing Inline Media is already working fine for document already on Telegram. Problem is/was only for local Files.

So I just Tried

msg_media = await client.upload_file('file.txt')
media = await client(functions.messages.UploadMediaRequest(types.InputPeerSelf(), msg_media))
await event.edit(file=media)

And luckily it worked

[New-dev0]

Lately , I found

FILE_PART_Х_MISSING: Part X (where X is a number) 
of the file is missing from storage. Try repeating the 
method call to resave the part.

Is Mentioned at https://core.telegram.org/api/files

Maybe, that's what https://github.com/LonamiWebs/Telethon/issues/1668#issuecomment-873602782, is doing

[SpEcHiDe]

I think, apparently it is not allowed, the BOT API docs was updated,.

I think for editing inline messages, you need to send message to some chat, and edit using the sent message file_id,

I think, getting the file id is currently broken in master branch, due to the layer 130 update.