Button, ToggleButton and slider updated. Error to warning when building
Button fixed so it doesn't release until it gets feedback from plc
Toggle button changed so it makes changes instantly. There was too big delay if we waited for feedback.
Slider added new features need some changes for final version.
from __future__ import absolute_import
from __future__ import print_function
import os
from binascii import b2a_hqx
try:
from runtime.spawn_subprocess import call
except ImportError:
from subprocess import call
restart_stunnel_cmdline = ["/etc/init.d/S50stunnel", "restart"]
_PSKpath = None
def restartStunnel():
"""
Restart stunnel service using SysV init stript
to apply new generated credentials
"""
try:
call(restart_stunnel_cmdline)
except OSError:
print(_("Couldn't restart stunnel service"))
def PSKgen(ID, PSKpath):
# b2a_hqx output len is 4/3 input len
secret = os.urandom(192) # int(256/1.3333)
secretstring = b2a_hqx(secret)
PSKstring = ID+":"+secretstring
with open(PSKpath, 'w') as f:
f.write(PSKstring)
restartStunnel()
def ensurePSK(ID, PSKpath):
global _PSKpath
_PSKpath = PSKpath
# check if already there
if not os.path.exists(PSKpath):
# create if needed
PSKgen(ID, PSKpath)
def getPSKID(errorlog):
if _PSKpath is not None:
if not os.path.exists(_PSKpath):
errorlog(
'Error: Pre-Shared-Key Secret in %s is missing!\n' % _PSKpath)
return None
ID, _sep, PSK = open(_PSKpath).read().partition(':')
PSK = PSK.rstrip('\n\r')
return (ID, PSK)
return None