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'''Utility functions for xauth.'''
import os
import hashlib
import easyprocess
class NotFoundError(Exception):
'''Error when xauth was not found.'''
pass
def is_installed():
'''
Return whether or not xauth is installed.
'''
try:
easyprocess.EasyProcess(['xauth', '-h']).check_installed()
except easyprocess.EasyProcessCheckInstalledError:
return False
else:
return True
def generate_mcookie():
'''
Generate a cookie string suitable for xauth.
'''
data = os.urandom(16) # 16 bytes = 128 bit
return hashlib.md5(data).hexdigest()
def call(*args):
'''
Call xauth with the given args.
'''
easyprocess.EasyProcess(['xauth'] + list(args)).call()