1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
# Copyright 2016 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Updates Chrome's "lastrun" value for the current user in HKCU."""
import optparse
import sys
import time
import winreg
def UpdateLastrun(client_state_key_path):
""" Updates Chrome's "lastrun" value in the registry to the current time.
Args:
client_state_key_path: The path to Chrome's ClientState key in the
registry.
"""
# time.time returns seconds since the Unix epoch. Chrome uses microseconds
# since the Windows epoch. Adjust based on values inspired by
# https://support.microsoft.com/en-us/kb/167296, which uses 100-nanosecond
# ticks.
now_us = str(int(time.time() * 1000000 + 11644473600000000))
try:
with winreg.OpenKey(winreg.HKEY_CURRENT_USER, client_state_key_path, 0,
winreg.KEY_SET_VALUE
| winreg.KEY_WOW64_32KEY) as key:
winreg.SetValueEx(key, 'lastrun', 0, winreg.REG_SZ, now_us)
except WindowsError as e:
raise KeyError('Failed opening registry key HKEY_CURRENT_USER\\%s' %
client_state_key_path) from e
return 0
def main():
usage = 'usage: %prog client_state_key_path'
parser = optparse.OptionParser(
usage, description='Update Chrome\'s "lastrun" value.')
_, args = parser.parse_args()
if len(args) != 1:
parser.error('Incorrect number of arguments.')
UpdateLastrun(args[0])
return 0
if __name__ == '__main__':
sys.exit(main())
|
