forked from stove/dataset
31 lines
1 KiB
Python
31 lines
1 KiB
Python
import __main__
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from os import urandom as _urandom
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from hashlib import sha1 as _sha1
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from base64 import encodebytes as _encodebytes, b64encode as _b64encode
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from json import load as _load, dump as _dump
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from os.path import dirname as _dirname, abspath as _abspath, join as _join, isfile as _isfile
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_HERE = _dirname(_abspath(__main__.__file__))
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_SSHA_PASSWORD_DIR = _join(_HERE, 'password', 'ssha.json')
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# unproudly borrowed from
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# http://www.openldap.org/faq/data/cache/347.html
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def ssha_encode(password):
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# do not regenerate SSHA
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if _isfile(_SSHA_PASSWORD_DIR):
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with open(_SSHA_PASSWORD_DIR, 'r') as fh:
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passwords = _load(fh)
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else:
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passwords = {}
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if password in passwords:
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return passwords[password]
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salt = _urandom(4)
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h = _sha1(password.encode())
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h.update(salt)
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ret = _b64encode(b"{SSHA}" + _encodebytes(h.digest() + salt)[:-1]).decode()
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passwords[password] = ret
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with open(_SSHA_PASSWORD_DIR, 'w') as fh:
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_dump(passwords, fh)
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return ret
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