53 lines
2.0 KiB
Python
Executable File
53 lines
2.0 KiB
Python
Executable File
#!/usr/bin/python3
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import json, hashlib, base64, time
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import sys
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from webViews.log import logger
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# generate cookie :
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# name = 'leebaok'
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# |
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# { "name":"leebaok", "login-time":time} Secure-Key
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# | |
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# | json.dumps |
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# | |
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# '{ "name":"leebaok", "login-time":time}' ______________|
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# | | concat
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# | encode('ascii') -> base64 | encode('ascii') -> md5().hexdigest()
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# | str(*, encoding='utf-8') |
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# | |
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# < XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX >.< XXXXXXXXXXXXXXXXXXXX >
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#
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def generate_cookie(name, securekey):
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#print (">> generate cookie for %s" % name)
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content = { 'name':name, 'login-time': time.asctime() }
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text = json.dumps(content)
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part1 = base64.b64encode(text.encode('ascii'))
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part2 = hashlib.md5( (text+securekey).encode('ascii') ).hexdigest()
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# part1 is binary(ascii) and part2 is str(utf-8)
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cookie = str(part1, encoding='utf-8') +"."+ part2
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#print ("cookie : %s" % cookie)
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return cookie
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def parse_cookie(cookie, securekey):
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logger.info (">> parse cookie : %s" % cookie)
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parts = cookie.split('.')
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part1 = parts[0]
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part2 = '' if len(parts) < 2 else parts[1]
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try:
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text = str(base64.b64decode(part1.encode('ascii')), encoding='utf-8')
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except:
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logger.info ("decode cookie failed")
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return None
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logger.info ("cookie content : %s" % text)
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thatpart2 = hashlib.md5((text+securekey).encode('ascii')).hexdigest()
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logger.info ("hash from part1 : %s" % thatpart2)
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logger.info ("hash from part2 : %s" % part2)
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if part2 == thatpart2:
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result = json.loads(text)['name']
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else:
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result = None
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logger.info ("parse from cookie : %s" % result)
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return result
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