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Handle errors in drain_ssl_buffer()

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Kovid Goyal 2017-06-26 12:53:24 +05:30
parent fae7613a08
commit 52949371c9
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GPG Key ID: 06BC317B515ACE7C
1 changed files with 17 additions and 6 deletions
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23
src/calibre/srv/loop.py
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@ -271,10 +271,15 @@ class Connection(object): # {{{
def drain_ssl_buffer(self):
try:
self.read_buffer.recv_from(self.socket)
except Exception:
# Ignore errors since we dont know if the SSL buffer had
# any data or not
pass
except ssl.SSLWantReadError:
return
except socket.error as e:
if e.errno in socket_errors_nonblocking or e.errno in socket_errors_eintr:
return
if e.errno in socket_errors_socket_closed:
self.ready = False
return
raise
def close(self):
self.ready = False
@ -493,7 +498,7 @@ class ServerLoop(object):
def tick(self):
now = monotonic()
read_needed, write_needed, readable, remove = [], [], [], []
read_needed, write_needed, readable, remove, close_needed = [], [], [], [], []
has_ssl = self.ssl_context is not None
for s, conn in self.connection_map.iteritems():
if now - conn.last_activity > self.opts.timeout:
@ -511,7 +516,10 @@ class ServerLoop(object):
else:
if has_ssl:
conn.drain_ssl_buffer()
(readable if conn.read_buffer.has_data else read_needed).append(s)
if conn.ready:
(readable if conn.read_buffer.has_data else read_needed).append(s)
else:
close_needed.append((s, conn))
else:
read_needed.append(s)
elif wf is WRITE:
@ -521,6 +529,9 @@ class ServerLoop(object):
self.log('Closing connection because of extended inactivity: %s' % conn.state_description)
self.close(s, conn)
for x, conn in close_needed:
self.close(s, conn)
if readable:
writable = []
else: