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imports: import genpwd,py from fmgbackup4. This is a script to generate passwords.
author Franz Glasner <fzglas.hg@dom66.de>
date Fri, 07 Feb 2025 12:37:13 +0100
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-1:000000000000 227:4bb2d0975cfe
1 #!/usr/local/bin/python3
2 # -*- coding: utf-8 -*-
3 #
4 # @(#)$Id: //Administration/Server/Konfiguration/Dateien/_main/fmgbackup4/root/bin/genpwd.py#1 $
5 # $Change: 28588 $ $DateTime: 2018/10/31 13:11:48 $ $Author: fag $
6 #
7 r"""Generate passwords.
8
9 Usage: genpwd.py [ Options ] required_length
10
11 Options:
12
13 --type, -t web, web-safe, web-safe2, base64, base32, ascii85
14
15 :Author: Franz Glasner
16
17 """
18
19 from __future__ import (division, absolute_import, print_function)
20
21 __author__ = "Franz Glasner"
22
23 __version__ = "0.1"
24
25
26 import getopt
27 import sys
28 import os
29 import base64
30
31
32 WEB_CHARS = b"ABCDEFGHIJKLMNOPQRSTUVWYXZabcdefghijklmnopqrstuvwxyz0123456789.,-_;!()[]{}*"
33 WEB_SAFE_CHARS = b"ABCDEFGHJKLMNPQRSTUVWYXZabcdefghijkmnopqrstuvwxyz23456789.,-_;!"
34 WEB_SAFE2_CHARS = b".,-_;!" + WEB_SAFE_CHARS
35
36 PY2 = sys.version_info[0] <= 2
37
38
39 def main():
40 opt_type = "web-safe2"
41 opts, args = getopt.getopt(sys.argv[1:],
42 "t:",
43 ["type="])
44 for opt, val in opts:
45 if opt in ("-t", "--type"):
46 if val not in ("web", "web-safe", "web-safe2",
47 "base64", "base32", "ascii85", ):
48 raise getopt.GetoptError("invalid type: %s" % val, "")
49 opt_type = val
50 else:
51 raise RuntimeError("inconsistent getopt handling")
52
53 try:
54 req_length = int(args[0], 10)
55 except IndexError:
56 raise getopt.GetoptError("no length given")
57
58 if opt_type == "web":
59 pwd = gen_web(req_length, WEB_CHARS)
60 elif opt_type == "web-safe":
61 pwd = gen_web(req_length, WEB_SAFE_CHARS)
62 elif opt_type == "web-safe2":
63 pwd = gen_web(req_length, WEB_SAFE2_CHARS)
64 elif opt_type == "base64":
65 encoder = base64.b64encode
66 pwd = gen_bin(req_length, encoder)
67 elif opt_type == "base32":
68 encoder = base64.b32encode
69 pwd = gen_bin(req_length, encoder)
70 elif opt_type == "ascii85":
71 encoder = base64.a85encode
72 pwd = gen_bin(req_length, encoder)
73 else:
74 raise NotImplementedError("type not yet implemented: %s" % opt_type)
75 print(pwd)
76
77
78 def gen_web(length, chars):
79 mult = 256//len(chars)
80 repertoire = chars * mult
81 assert len(repertoire) <= 256
82 pwd = []
83 while len(pwd) < length:
84 c = os.urandom(1)
85 if PY2:
86 c = ord(c)
87 else:
88 c = c[0]
89 if c < len(repertoire):
90 pwd.append(repertoire[c])
91 if PY2:
92 pwd = b''.join(pwd)
93 else:
94 pwd = bytes(pwd)
95 return pwd
96
97
98 def gen_bin(length, encoder):
99 pwd = encoder(os.urandom(length))
100 return pwd[:length]
101
102
103 if __name__ == "__main__":
104 main()