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XEP-0047: Fix the max sequence number

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The max seq allowed according to the XEP is 65535, therefore we must
modulo using 65536 to allow that value.
This commit is contained in:
mathieui 2020-12-01 20:12:45 +01:00
parent 6ff5162fb4
commit b27510f05b
1 changed files with 2 additions and 2 deletions
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4
slixmpp/plugins/xep_0047/stream.py
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@ -36,7 +36,7 @@ class IBBytestream(object):
raise socket.error
if len(data) > self.block_size:
data = data[:self.block_size]
self.send_seq = (self.send_seq + 1) % 65535
self.send_seq = (self.send_seq + 1) % 65536
seq = self.send_seq
if self.use_messages:
msg = self.xmpp.Message()
@ -72,7 +72,7 @@ class IBBytestream(object):
def _recv_data(self, stanza):
new_seq = stanza['ibb_data']['seq']
if new_seq != (self.recv_seq + 1) % 65535:
if new_seq != (self.recv_seq + 1) % 65536:
self.close()
raise XMPPError('unexpected-request')
self.recv_seq = new_seq