Python OpenSSL.SSL.WantWriteError() Examples
The following are 21
code examples of OpenSSL.SSL.WantWriteError().
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OpenSSL.SSL
, or try the search function
.
.
Example #1
| Source File: handlers.py From oss-ftp with MIT License | 6 votes |
|
def _handle_ssl_want_rw(self):
prev_row_pending = self._ssl_want_read or self._ssl_want_write
try:
yield
except SSL.WantReadError:
# we should never get here; it's just for extra safety
self._ssl_want_read = True
except SSL.WantWriteError:
# we should never get here; it's just for extra safety
self._ssl_want_write = True
if self._ssl_want_read:
self.modify_ioloop_events(
self._wanted_io_events | self.ioloop.READ, logdebug=True)
elif self._ssl_want_write:
self.modify_ioloop_events(
self._wanted_io_events | self.ioloop.WRITE, logdebug=True)
else:
if prev_row_pending:
self.modify_ioloop_events(self._wanted_io_events)
Example #2
| Source File: handlers.py From oss-ftp with MIT License | 6 votes |
|
def recv(self, buffer_size):
try:
return super(SSLConnection, self).recv(buffer_size)
except SSL.WantReadError:
debug("call: recv(), err: want-read", inst=self)
self._ssl_want_read = True
raise RetryError
except SSL.WantWriteError:
debug("call: recv(), err: want-write", inst=self)
self._ssl_want_write = True
raise RetryError
except SSL.ZeroReturnError as err:
debug("call: recv() -> shutdown(), err: zero-return",
inst=self)
super(SSLConnection, self).handle_close()
return b''
except SSL.SysCallError as err:
debug("call: recv(), err: %r" % err, inst=self)
errnum, errstr = err.args
if (errnum in _ERRNOS_DISCONNECTED or
errstr == 'Unexpected EOF'):
super(SSLConnection, self).handle_close()
return b''
else:
raise
Example #3
| Source File: handlers.py From oss-ftp with MIT License | 6 votes |
|
def _handle_ssl_want_rw(self):
prev_row_pending = self._ssl_want_read or self._ssl_want_write
try:
yield
except SSL.WantReadError:
# we should never get here; it's just for extra safety
self._ssl_want_read = True
except SSL.WantWriteError:
# we should never get here; it's just for extra safety
self._ssl_want_write = True
if self._ssl_want_read:
self.modify_ioloop_events(
self._wanted_io_events | self.ioloop.READ, logdebug=True)
elif self._ssl_want_write:
self.modify_ioloop_events(
self._wanted_io_events | self.ioloop.WRITE, logdebug=True)
else:
if prev_row_pending:
self.modify_ioloop_events(self._wanted_io_events)
Example #4
| Source File: tcp.py From BitTorrent with GNU General Public License v3.0 | 6 votes |
|
def writeSomeData(self, data):
try:
return Connection.writeSomeData(self, data)
except SSL.WantWriteError:
return 0
except SSL.WantReadError:
self.writeBlockedOnRead = 1
Connection.stopWriting(self)
Connection.startReading(self)
return 0
except SSL.ZeroReturnError:
return main.CONNECTION_LOST
except SSL.SysCallError, e:
if e[0] == -1 and data == "":
# errors when writing empty strings are expected
# and can be ignored
return 0
else:
return main.CONNECTION_LOST
Example #5
| Source File: handlers.py From oss-ftp with MIT License | 6 votes |
|
def recv(self, buffer_size):
try:
return super(SSLConnection, self).recv(buffer_size)
except SSL.WantReadError:
debug("call: recv(), err: want-read", inst=self)
self._ssl_want_read = True
raise RetryError
except SSL.WantWriteError:
debug("call: recv(), err: want-write", inst=self)
self._ssl_want_write = True
raise RetryError
except SSL.ZeroReturnError as err:
debug("call: recv() -> shutdown(), err: zero-return",
inst=self)
super(SSLConnection, self).handle_close()
return b''
except SSL.SysCallError as err:
debug("call: recv(), err: %r" % err, inst=self)
errnum, errstr = err.args
if (errnum in _ERRNOS_DISCONNECTED or
errstr == 'Unexpected EOF'):
super(SSLConnection, self).handle_close()
return b''
else:
raise
Example #6
| Source File: tcp.py From BitTorrent with GNU General Public License v3.0 | 6 votes |
|
def doRead(self):
if self.writeBlockedOnRead:
self.writeBlockedOnRead = 0
self._resetReadWrite()
try:
return Connection.doRead(self)
except SSL.ZeroReturnError:
return main.CONNECTION_DONE
except SSL.WantReadError:
return
except SSL.WantWriteError:
self.readBlockedOnWrite = 1
Connection.startWriting(self)
Connection.stopReading(self)
return
except SSL.SysCallError, (retval, desc):
if ((retval == -1 and desc == 'Unexpected EOF')
or retval > 0):
return main.CONNECTION_LOST
log.err()
return main.CONNECTION_LOST
Example #7
| Source File: tcp.py From python-for-android with Apache License 2.0 | 6 votes |
|
def writeSomeData(self, data):
try:
return Connection.writeSomeData(self, data)
except SSL.WantWriteError:
return 0
except SSL.WantReadError:
self.writeBlockedOnRead = 1
Connection.stopWriting(self)
Connection.startReading(self)
return 0
except SSL.ZeroReturnError:
return main.CONNECTION_LOST
except SSL.SysCallError, e:
if e[0] == -1 and data == "":
# errors when writing empty strings are expected
# and can be ignored
return 0
else:
return main.CONNECTION_LOST
Example #8
| Source File: ssl_pyopenssl.py From opsbro with MIT License | 5 votes |
|
def _safe_call(self, is_reader, call, *args, **kwargs):
"""Wrap the given call with SSL error-trapping.
is_reader: if False EOF errors will be raised. If True, EOF errors
will return "" (to emulate normal sockets).
"""
start = time.time()
while True:
try:
return call(*args, **kwargs)
except SSL.WantReadError:
# Sleep and try again. This is dangerous, because it means
# the rest of the stack has no way of differentiating
# between a "new handshake" error and "client dropped".
# Note this isn't an endless loop: there's a timeout below.
time.sleep(self.ssl_retry)
except SSL.WantWriteError:
time.sleep(self.ssl_retry)
except SSL.SysCallError, e:
if is_reader and e.args == (-1, 'Unexpected EOF'):
return ""
errnum = e.args[0]
if is_reader and errnum in wsgiserver.socket_errors_to_ignore:
return ""
raise socket.error(errnum)
except SSL.Error, e:
if is_reader and e.args == (-1, 'Unexpected EOF'):
return ""
thirdarg = None
try:
thirdarg = e.args[0][0][2]
except IndexError:
pass
if thirdarg == 'http request':
# The client is talking HTTP to an HTTPS server.
raise wsgiserver.NoSSLError()
raise wsgiserver.FatalSSLAlert(*e.args)
Example #9
| Source File: ssl_pyopenssl.py From moviegrabber with GNU General Public License v3.0 | 5 votes |
|
def _safe_call(self, is_reader, call, *args, **kwargs):
"""Wrap the given call with SSL error-trapping.
is_reader: if False EOF errors will be raised. If True, EOF errors
will return "" (to emulate normal sockets).
"""
start = time.time()
while True:
try:
return call(*args, **kwargs)
except SSL.WantReadError:
# Sleep and try again. This is dangerous, because it means
# the rest of the stack has no way of differentiating
# between a "new handshake" error and "client dropped".
# Note this isn't an endless loop: there's a timeout below.
time.sleep(self.ssl_retry)
except SSL.WantWriteError:
time.sleep(self.ssl_retry)
except SSL.SysCallError, e:
if is_reader and e.args == (-1, 'Unexpected EOF'):
return ""
errnum = e.args[0]
if is_reader and errnum in wsgiserver.socket_errors_to_ignore:
return ""
raise socket.error(errnum)
except SSL.Error, e:
if is_reader and e.args == (-1, 'Unexpected EOF'):
return ""
thirdarg = None
try:
thirdarg = e.args[0][0][2]
except IndexError:
pass
if thirdarg == 'http request':
# The client is talking HTTP to an HTTPS server.
raise wsgiserver.NoSSLError()
raise wsgiserver.FatalSSLAlert(*e.args)
Example #10
| Source File: ssl_pyopenssl.py From cosa-nostra with GNU General Public License v3.0 | 5 votes |
|
def _safe_call(self, is_reader, call, *args, **kwargs):
"""Wrap the given call with SSL error-trapping.
is_reader: if False EOF errors will be raised. If True, EOF errors
will return "" (to emulate normal sockets).
"""
start = time.time()
while True:
try:
return call(*args, **kwargs)
except SSL.WantReadError:
# Sleep and try again. This is dangerous, because it means
# the rest of the stack has no way of differentiating
# between a "new handshake" error and "client dropped".
# Note this isn't an endless loop: there's a timeout below.
time.sleep(self.ssl_retry)
except SSL.WantWriteError:
time.sleep(self.ssl_retry)
except SSL.SysCallError, e:
if is_reader and e.args == (-1, 'Unexpected EOF'):
return ""
errnum = e.args[0]
if is_reader and errnum in wsgiserver.socket_errors_to_ignore:
return ""
raise socket.error(errnum)
except SSL.Error, e:
if is_reader and e.args == (-1, 'Unexpected EOF'):
return ""
thirdarg = None
try:
thirdarg = e.args[0][0][2]
except IndexError:
pass
if thirdarg == 'http request':
# The client is talking HTTP to an HTTPS server.
raise wsgiserver.NoSSLError()
raise wsgiserver.FatalSSLAlert(*e.args)
Example #11
| Source File: ssl_pyopenssl.py From bokken with GNU General Public License v2.0 | 5 votes |
|
def _safe_call(self, is_reader, call, *args, **kwargs):
"""Wrap the given call with SSL error-trapping.
is_reader: if False EOF errors will be raised. If True, EOF errors
will return "" (to emulate normal sockets).
"""
start = time.time()
while True:
try:
return call(*args, **kwargs)
except SSL.WantReadError:
# Sleep and try again. This is dangerous, because it means
# the rest of the stack has no way of differentiating
# between a "new handshake" error and "client dropped".
# Note this isn't an endless loop: there's a timeout below.
time.sleep(self.ssl_retry)
except SSL.WantWriteError:
time.sleep(self.ssl_retry)
except SSL.SysCallError, e:
if is_reader and e.args == (-1, 'Unexpected EOF'):
return ""
errnum = e.args[0]
if is_reader and errnum in wsgiserver.socket_errors_to_ignore:
return ""
raise socket.error(errnum)
except SSL.Error, e:
if is_reader and e.args == (-1, 'Unexpected EOF'):
return ""
thirdarg = None
try:
thirdarg = e.args[0][0][2]
except IndexError:
pass
if thirdarg == 'http request':
# The client is talking HTTP to an HTTPS server.
raise wsgiserver.NoSSLError()
raise wsgiserver.FatalSSLAlert(*e.args)
Example #12
| Source File: tcp.py From python-for-android with Apache License 2.0 | 5 votes |
|
def doRead(self):
if self.disconnected:
# See the comment in the similar check in doWrite below.
# Additionally, in order for anything other than returning
# CONNECTION_DONE here to make sense, it will probably be necessary
# to implement a way to switch back to TCP from TLS (actually, if
# we did something other than return CONNECTION_DONE, that would be
# a big part of implementing that feature). In other words, the
# expectation is that doRead will be called when self.disconnected
# is True only when the connection has been lost. It's possible
# that the other end could stop speaking TLS and then send us some
# non-TLS data. We'll end up ignoring that data and dropping the
# connection. There's no unit tests for this check in the cases
# where it makes a difference. The test suite only hits this
# codepath when it would have otherwise hit the SSL.ZeroReturnError
# exception handler below, which has exactly the same behavior as
# this conditional. Maybe that's the only case that can ever be
# triggered, I'm not sure. -exarkun
return main.CONNECTION_DONE
if self.writeBlockedOnRead:
self.writeBlockedOnRead = 0
self._resetReadWrite()
try:
return Connection.doRead(self)
except SSL.ZeroReturnError:
return main.CONNECTION_DONE
except SSL.WantReadError:
return
except SSL.WantWriteError:
self.readBlockedOnWrite = 1
Connection.startWriting(self)
Connection.stopReading(self)
return
except SSL.SysCallError, (retval, desc):
if ((retval == -1 and desc == 'Unexpected EOF')
or retval > 0):
return main.CONNECTION_LOST
log.err()
return main.CONNECTION_LOST
Example #13
| Source File: ssl_pyopenssl.py From SalesforceXyTools with Apache License 2.0 | 5 votes |
|
def _safe_call(self, is_reader, call, *args, **kwargs):
"""Wrap the given call with SSL error-trapping.
is_reader: if False EOF errors will be raised. If True, EOF errors
will return "" (to emulate normal sockets).
"""
start = time.time()
while True:
try:
return call(*args, **kwargs)
except SSL.WantReadError:
# Sleep and try again. This is dangerous, because it means
# the rest of the stack has no way of differentiating
# between a "new handshake" error and "client dropped".
# Note this isn't an endless loop: there's a timeout below.
time.sleep(self.ssl_retry)
except SSL.WantWriteError:
time.sleep(self.ssl_retry)
except SSL.SysCallError, e:
if is_reader and e.args == (-1, 'Unexpected EOF'):
return ""
errnum = e.args[0]
if is_reader and errnum in wsgiserver.socket_errors_to_ignore:
return ""
raise socket.error(errnum)
except SSL.Error, e:
if is_reader and e.args == (-1, 'Unexpected EOF'):
return ""
thirdarg = None
try:
thirdarg = e.args[0][0][2]
except IndexError:
pass
if thirdarg == 'http request':
# The client is talking HTTP to an HTTPS server.
raise wsgiserver.NoSSLError()
raise wsgiserver.FatalSSLAlert(*e.args)
Example #14
| Source File: handlers.py From oss-ftp with MIT License | 5 votes |
|
def send(self, data):
if not isinstance(data, bytes):
data = bytes(data)
try:
return super(SSLConnection, self).send(data)
except SSL.WantReadError:
debug("call: send(), err: want-read", inst=self)
self._ssl_want_read = True
return 0
except SSL.WantWriteError:
debug("call: send(), err: want-write", inst=self)
self._ssl_want_write = True
return 0
except SSL.ZeroReturnError as err:
debug(
"call: send() -> shutdown(), err: zero-return", inst=self)
super(SSLConnection, self).handle_close()
return 0
except SSL.SysCallError as err:
debug("call: send(), err: %r" % err, inst=self)
errnum, errstr = err.args
if errnum == errno.EWOULDBLOCK:
return 0
elif (errnum in _ERRNOS_DISCONNECTED or
errstr == 'Unexpected EOF'):
super(SSLConnection, self).handle_close()
return 0
else:
raise
Example #15
| Source File: handlers.py From oss-ftp with MIT License | 5 votes |
|
def send(self, data):
if not isinstance(data, bytes):
data = bytes(data)
try:
return super(SSLConnection, self).send(data)
except SSL.WantReadError:
debug("call: send(), err: want-read", inst=self)
self._ssl_want_read = True
return 0
except SSL.WantWriteError:
debug("call: send(), err: want-write", inst=self)
self._ssl_want_write = True
return 0
except SSL.ZeroReturnError as err:
debug(
"call: send() -> shutdown(), err: zero-return", inst=self)
super(SSLConnection, self).handle_close()
return 0
except SSL.SysCallError as err:
debug("call: send(), err: %r" % err, inst=self)
errnum, errstr = err.args
if errnum == errno.EWOULDBLOCK:
return 0
elif (errnum in _ERRNOS_DISCONNECTED or
errstr == 'Unexpected EOF'):
super(SSLConnection, self).handle_close()
return 0
else:
raise
Example #16
| Source File: handlers.py From oss-ftp with MIT License | 5 votes |
|
def _do_ssl_handshake(self):
self._ssl_accepting = True
self._ssl_want_read = False
self._ssl_want_write = False
try:
self.socket.do_handshake()
except SSL.WantReadError:
self._ssl_want_read = True
debug("call: _do_ssl_handshake, err: want-read", inst=self)
except SSL.WantWriteError:
self._ssl_want_write = True
debug("call: _do_ssl_handshake, err: want-write", inst=self)
except SSL.SysCallError as err:
debug("call: _do_ssl_handshake, err: %r" % err, inst=self)
retval, desc = err.args
if (retval == -1 and desc == 'Unexpected EOF') or retval > 0:
return self.handle_close()
raise
except SSL.Error as err:
debug("call: _do_ssl_handshake, err: %r" % err, inst=self)
return self.handle_failed_ssl_handshake()
else:
debug("SSL connection established", self)
self._ssl_accepting = False
self._ssl_established = True
self.handle_ssl_established()
Example #17
| Source File: ssl_pyopenssl.py From nightmare with GNU General Public License v2.0 | 5 votes |
|
def _safe_call(self, is_reader, call, *args, **kwargs):
"""Wrap the given call with SSL error-trapping.
is_reader: if False EOF errors will be raised. If True, EOF errors
will return "" (to emulate normal sockets).
"""
start = time.time()
while True:
try:
return call(*args, **kwargs)
except SSL.WantReadError:
# Sleep and try again. This is dangerous, because it means
# the rest of the stack has no way of differentiating
# between a "new handshake" error and "client dropped".
# Note this isn't an endless loop: there's a timeout below.
time.sleep(self.ssl_retry)
except SSL.WantWriteError:
time.sleep(self.ssl_retry)
except SSL.SysCallError, e:
if is_reader and e.args == (-1, 'Unexpected EOF'):
return ""
errnum = e.args[0]
if is_reader and errnum in wsgiserver.socket_errors_to_ignore:
return ""
raise socket.error(errnum)
except SSL.Error, e:
if is_reader and e.args == (-1, 'Unexpected EOF'):
return ""
thirdarg = None
try:
thirdarg = e.args[0][0][2]
except IndexError:
pass
if thirdarg == 'http request':
# The client is talking HTTP to an HTTPS server.
raise wsgiserver.NoSSLError()
raise wsgiserver.FatalSSLAlert(*e.args)
Example #18
| Source File: pyopenssl.py From cheroot with BSD 3-Clause "New" or "Revised" License | 4 votes |
|
def _safe_call(self, is_reader, call, *args, **kwargs):
"""Wrap the given call with TLS error-trapping.
is_reader: if False EOF errors will be raised. If True, EOF errors
will return "" (to emulate normal sockets).
"""
start = time.time()
while True:
try:
return call(*args, **kwargs)
except SSL.WantReadError:
# Sleep and try again. This is dangerous, because it means
# the rest of the stack has no way of differentiating
# between a "new handshake" error and "client dropped".
# Note this isn't an endless loop: there's a timeout below.
# Ref: https://stackoverflow.com/a/5133568/595220
time.sleep(self.ssl_retry)
except SSL.WantWriteError:
time.sleep(self.ssl_retry)
except SSL.SysCallError as e:
if is_reader and e.args == (-1, 'Unexpected EOF'):
return b''
errnum = e.args[0]
if is_reader and errnum in errors.socket_errors_to_ignore:
return b''
raise socket.error(errnum)
except SSL.Error as e:
if is_reader and e.args == (-1, 'Unexpected EOF'):
return b''
thirdarg = None
try:
thirdarg = e.args[0][0][2]
except IndexError:
pass
if thirdarg == 'http request':
# The client is talking HTTP to an HTTPS server.
raise errors.NoSSLError()
raise errors.FatalSSLAlert(*e.args)
if time.time() - start > self.ssl_timeout:
raise socket.timeout('timed out')
Example #19
| Source File: ssl_pyopenssl.py From Hatkey with GNU General Public License v3.0 | 4 votes |
|
def _safe_call(self, is_reader, call, *args, **kwargs):
"""Wrap the given call with SSL error-trapping.
is_reader: if False EOF errors will be raised. If True, EOF errors
will return "" (to emulate normal sockets).
"""
start = time.time()
while True:
try:
return call(*args, **kwargs)
except SSL.WantReadError:
# Sleep and try again. This is dangerous, because it means
# the rest of the stack has no way of differentiating
# between a "new handshake" error and "client dropped".
# Note this isn't an endless loop: there's a timeout below.
time.sleep(self.ssl_retry)
except SSL.WantWriteError:
time.sleep(self.ssl_retry)
except SSL.SysCallError as e:
if is_reader and e.args == (-1, 'Unexpected EOF'):
return ""
errnum = e.args[0]
if is_reader and errnum in wsgiserver.socket_errors_to_ignore:
return ""
raise socket.error(errnum)
except SSL.Error as e:
if is_reader and e.args == (-1, 'Unexpected EOF'):
return ""
thirdarg = None
try:
thirdarg = e.args[0][0][2]
except IndexError:
pass
if thirdarg == 'http request':
# The client is talking HTTP to an HTTPS server.
raise wsgiserver.NoSSLError()
raise wsgiserver.FatalSSLAlert(*e.args)
except:
raise
if time.time() - start > self.ssl_timeout:
raise socket.timeout("timed out")
Example #20
| Source File: ssl_pyopenssl.py From bazarr with GNU General Public License v3.0 | 4 votes |
|
def _safe_call(self, is_reader, call, *args, **kwargs):
"""Wrap the given call with SSL error-trapping.
is_reader: if False EOF errors will be raised. If True, EOF errors
will return "" (to emulate normal sockets).
"""
start = time.time()
while True:
try:
return call(*args, **kwargs)
except SSL.WantReadError:
# Sleep and try again. This is dangerous, because it means
# the rest of the stack has no way of differentiating
# between a "new handshake" error and "client dropped".
# Note this isn't an endless loop: there's a timeout below.
time.sleep(self.ssl_retry)
except SSL.WantWriteError:
time.sleep(self.ssl_retry)
except SSL.SysCallError as e:
if is_reader and e.args == (-1, 'Unexpected EOF'):
return ''
errnum = e.args[0]
if is_reader and errnum in wsgiserver.socket_errors_to_ignore:
return ''
raise socket.error(errnum)
except SSL.Error as e:
if is_reader and e.args == (-1, 'Unexpected EOF'):
return ''
thirdarg = None
try:
thirdarg = e.args[0][0][2]
except IndexError:
pass
if thirdarg == 'http request':
# The client is talking HTTP to an HTTPS server.
raise wsgiserver.NoSSLError()
raise wsgiserver.FatalSSLAlert(*e.args)
except:
raise
if time.time() - start > self.ssl_timeout:
raise socket.timeout('timed out')
Example #21
| Source File: pyopenssl.py From Tautulli with GNU General Public License v3.0 | 4 votes |
|
def _safe_call(self, is_reader, call, *args, **kwargs):
"""Wrap the given call with SSL error-trapping.
is_reader: if False EOF errors will be raised. If True, EOF errors
will return "" (to emulate normal sockets).
"""
start = time.time()
while True:
try:
return call(*args, **kwargs)
except SSL.WantReadError:
# Sleep and try again. This is dangerous, because it means
# the rest of the stack has no way of differentiating
# between a "new handshake" error and "client dropped".
# Note this isn't an endless loop: there's a timeout below.
# Ref: https://stackoverflow.com/a/5133568/595220
time.sleep(self.ssl_retry)
except SSL.WantWriteError:
time.sleep(self.ssl_retry)
except SSL.SysCallError as e:
if is_reader and e.args == (-1, 'Unexpected EOF'):
return b''
errnum = e.args[0]
if is_reader and errnum in errors.socket_errors_to_ignore:
return b''
raise socket.error(errnum)
except SSL.Error as e:
if is_reader and e.args == (-1, 'Unexpected EOF'):
return b''
thirdarg = None
try:
thirdarg = e.args[0][0][2]
except IndexError:
pass
if thirdarg == 'http request':
# The client is talking HTTP to an HTTPS server.
raise errors.NoSSLError()
raise errors.FatalSSLAlert(*e.args)
if time.time() - start > self.ssl_timeout:
raise socket.timeout('timed out')
