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)
except:
raise
if time.time() - start > self.ssl_timeout:
raise socket.timeout("timed out")
python类WantWriteError()的实例源码
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 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 NoSSLError()
raise FatalSSLAlert(*e.args)
except:
raise
if time.time() - start > self.ssl_timeout:
raise socket.timeout("timed out")
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')
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")
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)
except:
raise
if time.time() - start > self.ssl_timeout:
raise socket.timeout("timed out")
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)
except:
raise
if time.time() - start > self.ssl_timeout:
raise socket.timeout("timed out")
def _ssl_wrap_method(method, is_reader=False):
"""Wrap the given method with SSL error-trapping.
is_reader: if False (the default), EOF errors will be raised.
If True, EOF errors will return "" (to emulate normal sockets).
"""
def ssl_method_wrapper(self, *args, **kwargs):
## print (id(self), method, args, kwargs)
start = time.time()
while True:
try:
return method(self, *args, **kwargs)
except (SSL.WantReadError, SSL.WantWriteError):
# 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.SysCallError, e:
if is_reader and e.args == (-1, 'Unexpected EOF'):
return ""
errno = e.args[0]
if is_reader and errno in socket_errors_to_ignore:
return ""
raise socket.error(errno)
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 is_reader and thirdarg == 'ssl handshake failure':
return ""
if thirdarg == 'http request':
# The client is talking HTTP to an HTTPS server.
raise NoSSLError()
raise
if time.time() - start > self.ssl_timeout:
raise socket.timeout("timed out")
return ssl_method_wrapper
def _ssl_wrap_method(method, is_reader=False):
"""Wrap the given method with SSL error-trapping.
is_reader: if False (the default), EOF errors will be raised.
If True, EOF errors will return "" (to emulate normal sockets).
"""
def ssl_method_wrapper(self, *args, **kwargs):
## print (id(self), method, args, kwargs)
start = time.time()
while True:
try:
return method(self, *args, **kwargs)
except (SSL.WantReadError, SSL.WantWriteError):
# 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.SysCallError, e:
if is_reader and e.args == (-1, 'Unexpected EOF'):
return ""
errno = e.args[0]
if is_reader and errno in socket_errors_to_ignore:
return ""
raise socket.error(errno)
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 is_reader and thirdarg == 'ssl handshake failure':
return ""
if thirdarg == 'http request':
# The client is talking HTTP to an HTTPS server.
raise NoSSLError()
raise
if time.time() - start > self.ssl_timeout:
raise socket.timeout("timed out")
return ssl_method_wrapper
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)
except:
raise
if time.time() - start > self.ssl_timeout:
raise socket.timeout("timed out")
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 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 NoSSLError()
raise FatalSSLAlert(*e.args)
except:
raise
if time.time() - start > self.ssl_timeout:
raise socket.timeout("timed out")
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")
