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pyi2phosts/lib/utils.py: add get_b32()

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Because we want to use b64->b32 conversion from different places, move
in to our library.
This commit is contained in:
Hidden Z 2010-11-05 14:27:51 +00:00
parent 6b5d731c4b
commit 623134e1a2
1 changed files with 10 additions and 0 deletions
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10
pyi2phosts/lib/utils.py
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@ -2,6 +2,8 @@ import sys
import logging
import configobj
import validate
import hashlib
import base64
from logging import handlers
@ -50,3 +52,11 @@ def validate_config(config):
sys.stderr.write('The following section was missing:%s ' %
', '.join(section_list))
sys.exit(1)
def get_b32(dest):
""" Calculate base32 hash from base64 """
raw_key = base64.b64decode(dest.encode('utf-8'), '-~')
hash = hashlib.sha256(raw_key)
b32 = base64.b32encode(hash.digest()).lower().replace('=', '')+'.b32.i2p'
return b32