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Save last ack to resend in case of bad salt

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This commit is contained in:
Lonami Exo 2018-06-20 11:12:04 +02:00
parent c85ba4accc
commit ad1ab64415
1 changed files with 15 additions and 2 deletions
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17
telethon/network/mtprotosender.py
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@ -80,6 +80,13 @@ class MTProtoSender:
# We need to acknowledge every response from Telegram
self._pending_ack = set()
# Similar to pending_messages but only for the last ack.
# Ack can't be put in the messages because Telegram never
# responds to acknowledges (they're just that, acknowledges),
# so it would grow to infinite otherwise, but on bad salt it's
# necessary to resend them just like everything else.
self._last_ack = None
# Jump table from response ID to method that handles it
self._handlers = {
RpcResult.CONSTRUCTOR_ID: self._handle_rpc_result,
@ -146,6 +153,7 @@ class MTProtoSender:
self._pending_messages.clear()
self._pending_ack.clear()
self._last_ack = None
__log__.debug('Cancelling the send loop...')
self._send_loop_handle.cancel()
@ -323,9 +331,10 @@ class MTProtoSender:
"""
while self._user_connected and not self._reconnecting:
if self._pending_ack:
self._send_queue.put_nowait(self.state.create_message(
self._last_ack = self.state.create_message(
MsgsAck(list(self._pending_ack))
))
)
self._send_queue.put_nowait(self._last_ack)
self._pending_ack.clear()
messages = await self._send_queue.get()
@ -542,6 +551,10 @@ class MTProtoSender:
bad_salt = message.obj
__log__.debug('Handling bad salt for message %d', bad_salt.bad_msg_id)
self.state.salt = bad_salt.new_server_salt
if self._last_ack and bad_salt.bad_msg_id == self._last_ack.msg_id:
self._send_queue.put_nowait(self._last_ack)
return
try:
self._send_queue.put_nowait(
self._pending_messages[bad_salt.bad_msg_id])