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handle and log if downloading from bad sendfile implementations

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This commit is contained in:
Victor Shyba 2019-02-04 18:53:23 -03:00
parent 8e607fcc2a
commit b82d2c3120
1 changed files with 7 additions and 2 deletions
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9
lbrynet/blob_exchange/client.py
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@ -51,9 +51,14 @@ class BlobExchangeClientProtocol(asyncio.Protocol):
if response.blob_data and self.writer and not self.writer.closed():
log.debug("got %i blob bytes from %s:%i", len(response.blob_data), self.peer_address, self.peer_port)
# write blob bytes if we're writing a blob and have blob bytes to write
self._blob_bytes_received += len(response.blob_data)
if len(response.blob_data) > (self.blob.get_length() - self._blob_bytes_received):
data = response.blob_data[:(self.blob.get_length() - self._blob_bytes_received)]
log.warning("got more than asked from %s:%d, probable sendfile bug", self.peer_address, self.peer_port)
else:
data = response.blob_data
self._blob_bytes_received += len(data)
try:
self.writer.write(response.blob_data)
self.writer.write(data)
return
except IOError as err:
log.error("error downloading blob from %s:%i: %s", self.peer_address, self.peer_port, err)