mirror of
https://github.com/Luzifer/browser-privacy.git
synced 2024-11-09 17:40:00 +00:00
52 lines
1.2 KiB
Python
52 lines
1.2 KiB
Python
import sys
|
|
import re
|
|
import codecs
|
|
import hashlib
|
|
import base64
|
|
import datetime
|
|
|
|
import pytz
|
|
|
|
checksumRegexp = re.compile(r'^! Checksum: ([\w\+\/=]+).*\n', re.M)
|
|
timeUpdRegexp = re.compile(r'^! TimeUpdated: (.*)\n', re.M)
|
|
|
|
|
|
def addChecksum(data):
|
|
checksum = calculateChecksum(data)
|
|
data = re.sub(checksumRegexp,
|
|
r'! Checksum: {}\n'.format(checksum),
|
|
data,
|
|
1)
|
|
return data
|
|
|
|
|
|
def addDate(data):
|
|
d = datetime.datetime.utcnow().replace(microsecond=0)
|
|
d_with_timezone = d.replace(tzinfo=pytz.UTC)
|
|
now = d_with_timezone.isoformat()
|
|
|
|
return re.sub(timeUpdRegexp, r'! TimeUpdated: {}\n'.format(now), data)
|
|
|
|
|
|
def calculateChecksum(data):
|
|
data = normalize(data)
|
|
|
|
hash = hashlib.md5()
|
|
hash.update(data.encode('utf-8'))
|
|
return base64.b64encode(hash.digest()).decode('utf-8').rstrip('=')
|
|
|
|
|
|
def normalize(data):
|
|
data = re.sub(r'\r', '', data)
|
|
data = re.sub(r'\n+', '\n', data)
|
|
data = re.sub(checksumRegexp, '', data)
|
|
return data
|
|
|
|
|
|
if __name__ == '__main__':
|
|
data = open('filters.txt').read()
|
|
data = addDate(data)
|
|
data = addChecksum(data)
|
|
|
|
with open('filters.txt', 'w') as f:
|
|
f.write(data)
|