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# Copyright (c) 2018 Aaron LI <aly@aaronly.me>
# MIT License
"""
Custom Ansible template filters for "mail" role.
"""
import os
import base64
import crypt
def dovecot_makepass(p):
"""
Generate the salted hashed password for Dovecot using the
SHA512-CRYPT scheme.
Implement the "doveadm pw -s SHA512-CRYPT" command.
Dovecot password format: {<scheme>}$<type>$<salt>$<hash>
"""
method, htype = "SHA512", "$6$"
scheme = method + "-CRYPT"
saltlen = 16
salt = os.urandom(saltlen)
salt = base64.b64encode(salt)[:saltlen]
return "{%s}%s" % (scheme, crypt.crypt(p, htype+salt))
class FilterModule(object):
def filters(self):
return {
"dovecot_makepass": dovecot_makepass,
}
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