Python/apps/py-cutils: cutils/genpwd.py annotate

annotate cutils/genpwd.py @ 375:7044c2900890

FIX: Convert the ultimate parse errors for a .treesum file into a real ValueError. Do not assert such important runtime errors. BUGS: Should be a dedicated exception type.

author	Franz Glasner <fzglas.hg@dom66.de>
date	Mon, 05 May 2025 09:21:55 +0200
parents	48430941c18c
children

rev	line source
227 4bb2d0975cfe imports: import genpwd,py from fmgbackup4. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	1 # -- coding: utf-8 --
230 ccbb6905914e Change copyright and note genpwd in the READNE and make an official script Franz Glasner <fzglas.hg@dom66.de> parents: 229 diff changeset	2 # :-
323 48430941c18c Adopt copyright and license wordings from https://reuse.software/faq/. Franz Glasner <fzglas.hg@dom66.de> parents: 254 diff changeset	3 # SPDX-FileCopyrightText: © 2018 Franz Glasner
48430941c18c Adopt copyright and license wordings from https://reuse.software/faq/. Franz Glasner <fzglas.hg@dom66.de> parents: 254 diff changeset	4 # SPDX-FileCopyrightText: © 2025 Franz Glasner
48430941c18c Adopt copyright and license wordings from https://reuse.software/faq/. Franz Glasner <fzglas.hg@dom66.de> parents: 254 diff changeset	5 # SPDX-License-Identifier: BSD-3-Clause
230 ccbb6905914e Change copyright and note genpwd in the READNE and make an official script Franz Glasner <fzglas.hg@dom66.de> parents: 229 diff changeset	6 # :-
252 0a2a162c5ad7 genpwd: Wording in help and docs Franz Glasner <fzglas.hg@dom66.de> parents: 251 diff changeset	7 r"""A simple password generator to generate random passwords from selected
0a2a162c5ad7 genpwd: Wording in help and docs Franz Glasner <fzglas.hg@dom66.de> parents: 251 diff changeset	8 character repertoires.
227 4bb2d0975cfe imports: import genpwd,py from fmgbackup4. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	9
251 14bb7423445d genpwd: module description Franz Glasner <fzglas.hg@dom66.de> parents: 250 diff changeset	10 Use :command:`genpwd.py --help' for a detailed help message.
227 4bb2d0975cfe imports: import genpwd,py from fmgbackup4. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	11
4bb2d0975cfe imports: import genpwd,py from fmgbackup4. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	12 """
4bb2d0975cfe imports: import genpwd,py from fmgbackup4. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	13
4bb2d0975cfe imports: import genpwd,py from fmgbackup4. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	14 from __future__ import (division, absolute_import, print_function)
4bb2d0975cfe imports: import genpwd,py from fmgbackup4. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	15
231 6d8443878a00 Use argparse in genpwd.py now. Franz Glasner <fzglas.hg@dom66.de> parents: 230 diff changeset	16 import argparse
6d8443878a00 Use argparse in genpwd.py now. Franz Glasner <fzglas.hg@dom66.de> parents: 230 diff changeset	17 import base64
241 d4501acb0a7c Implement a "bin-hex" password selection/repertoire Franz Glasner <fzglas.hg@dom66.de> parents: 240 diff changeset	18 import binascii
231 6d8443878a00 Use argparse in genpwd.py now. Franz Glasner <fzglas.hg@dom66.de> parents: 230 diff changeset	19 import os
227 4bb2d0975cfe imports: import genpwd,py from fmgbackup4. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	20 import sys
4bb2d0975cfe imports: import genpwd,py from fmgbackup4. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	21
230 ccbb6905914e Change copyright and note genpwd in the READNE and make an official script Franz Glasner <fzglas.hg@dom66.de> parents: 229 diff changeset	22 from . import (__version__, __revision__)
ccbb6905914e Change copyright and note genpwd in the READNE and make an official script Franz Glasner <fzglas.hg@dom66.de> parents: 229 diff changeset	23
227 4bb2d0975cfe imports: import genpwd,py from fmgbackup4. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	24
244 42f7ecd70ec1 genpwd: Renamed algorithms and changed restricted the WEB character repertoire to not use delims and sub-delims from URLs and URIs Franz Glasner <fzglas.hg@dom66.de> parents: 243 diff changeset	25 #
42f7ecd70ec1 genpwd: Renamed algorithms and changed restricted the WEB character repertoire to not use delims and sub-delims from URLs and URIs Franz Glasner <fzglas.hg@dom66.de> parents: 243 diff changeset	26 # Unreserved characters according to RFC 1738 (URL) and RFC 3986 (URI)
42f7ecd70ec1 genpwd: Renamed algorithms and changed restricted the WEB character repertoire to not use delims and sub-delims from URLs and URIs Franz Glasner <fzglas.hg@dom66.de> parents: 243 diff changeset	27 # No general delimiters and no sub-delimiters.
42f7ecd70ec1 genpwd: Renamed algorithms and changed restricted the WEB character repertoire to not use delims and sub-delims from URLs and URIs Franz Glasner <fzglas.hg@dom66.de> parents: 243 diff changeset	28 #
243 86417af99561 genpwd: Implement ascii and alnum and their safe variants Franz Glasner <fzglas.hg@dom66.de> parents: 242 diff changeset	29 WEB_CHARS = (b"ABCDEFGHIJKLMNOPQRSTUVWYXZabcdefghijklmnopqrstuvwxyz"
244 42f7ecd70ec1 genpwd: Renamed algorithms and changed restricted the WEB character repertoire to not use delims and sub-delims from URLs and URIs Franz Glasner <fzglas.hg@dom66.de> parents: 243 diff changeset	30 b"0123456789-._")
246 c29266444003 genpwd: Implement "uri" Franz Glasner <fzglas.hg@dom66.de> parents: 245 diff changeset	31 # WEB_CHARS without visually similar characters (0O, 1lI)
244 42f7ecd70ec1 genpwd: Renamed algorithms and changed restricted the WEB character repertoire to not use delims and sub-delims from URLs and URIs Franz Glasner <fzglas.hg@dom66.de> parents: 243 diff changeset	32 SAFE_WEB_CHARS = (b"ABCDEFGHJKLMNPQRSTUVWYXZabcdefghijkmnopqrstuvwxyz"
42f7ecd70ec1 genpwd: Renamed algorithms and changed restricted the WEB character repertoire to not use delims and sub-delims from URLs and URIs Franz Glasner <fzglas.hg@dom66.de> parents: 243 diff changeset	33 b"23456789-._")
246 c29266444003 genpwd: Implement "uri" Franz Glasner <fzglas.hg@dom66.de> parents: 245 diff changeset	34 # SAFE_WEB_CHARS with preference to punctuation
c29266444003 genpwd: Implement "uri" Franz Glasner <fzglas.hg@dom66.de> parents: 245 diff changeset	35 SAFE_WEB_CHARS_2 = b".-_" + SAFE_WEB_CHARS
c29266444003 genpwd: Implement "uri" Franz Glasner <fzglas.hg@dom66.de> parents: 245 diff changeset	36 # Unreserved characters from URI but with sub-delims allowed
c29266444003 genpwd: Implement "uri" Franz Glasner <fzglas.hg@dom66.de> parents: 245 diff changeset	37 URI_CHARS = WEB_CHARS + b"~" + b"!$&'()*+,;="
c29266444003 genpwd: Implement "uri" Franz Glasner <fzglas.hg@dom66.de> parents: 245 diff changeset	38 # URI_CHARS without visually similar characters
c29266444003 genpwd: Implement "uri" Franz Glasner <fzglas.hg@dom66.de> parents: 245 diff changeset	39 SAFE_URI_CHARS = SAFE_WEB_CHARS + b"~" + b"!$&'()*+,;="
c29266444003 genpwd: Implement "uri" Franz Glasner <fzglas.hg@dom66.de> parents: 245 diff changeset	40 # Just like SAFE_URI_CHARS but prefers punctuation characters
c29266444003 genpwd: Implement "uri" Franz Glasner <fzglas.hg@dom66.de> parents: 245 diff changeset	41 SAFE_URI_CHARS_2 = (b"~" + b"!$&'()*+,;=" + SAFE_WEB_CHARS
c29266444003 genpwd: Implement "uri" Franz Glasner <fzglas.hg@dom66.de> parents: 245 diff changeset	42 + b"~" + b"!$&'()*+,;=")
c29266444003 genpwd: Implement "uri" Franz Glasner <fzglas.hg@dom66.de> parents: 245 diff changeset	43 # All visible characters from ASCII character set but no space
243 86417af99561 genpwd: Implement ascii and alnum and their safe variants Franz Glasner <fzglas.hg@dom66.de> parents: 242 diff changeset	44 FULL_ASCII = (b"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"
86417af99561 genpwd: Implement ascii and alnum and their safe variants Franz Glasner <fzglas.hg@dom66.de> parents: 242 diff changeset	45 b"abcdefghijklmnopqrstuvwxyz!#$%&/()*+-.,:;<=>?@^_`[\\]{\|}'\"~")
86417af99561 genpwd: Implement ascii and alnum and their safe variants Franz Glasner <fzglas.hg@dom66.de> parents: 242 diff changeset	46 #
86417af99561 genpwd: Implement ascii and alnum and their safe variants Franz Glasner <fzglas.hg@dom66.de> parents: 242 diff changeset	47 # A safer variant of FULL_ASCII:
86417af99561 genpwd: Implement ascii and alnum and their safe variants Franz Glasner <fzglas.hg@dom66.de> parents: 242 diff changeset	48 # - no characters that are visually similar (0O, 1lI)
86417af99561 genpwd: Implement ascii and alnum and their safe variants Franz Glasner <fzglas.hg@dom66.de> parents: 242 diff changeset	49 # - no characters with dead keys on german keyboards
86417af99561 genpwd: Implement ascii and alnum and their safe variants Franz Glasner <fzglas.hg@dom66.de> parents: 242 diff changeset	50 # - no backslash (too easily interpret as escape character
86417af99561 genpwd: Implement ascii and alnum and their safe variants Franz Glasner <fzglas.hg@dom66.de> parents: 242 diff changeset	51 # - no single or double quotes
86417af99561 genpwd: Implement ascii and alnum and their safe variants Franz Glasner <fzglas.hg@dom66.de> parents: 242 diff changeset	52 SAFE_ASCII = (b"23456789ABCDEFGHJKLMNPQRSTUVWXYZ"
86417af99561 genpwd: Implement ascii and alnum and their safe variants Franz Glasner <fzglas.hg@dom66.de> parents: 242 diff changeset	53 b"abcdefghijkmnopqrstuvwxyz!#$%&/()*+-.,:;<=>?@_[]{\|}~")
86417af99561 genpwd: Implement ascii and alnum and their safe variants Franz Glasner <fzglas.hg@dom66.de> parents: 242 diff changeset	54 # just numeric and alphabetic
86417af99561 genpwd: Implement ascii and alnum and their safe variants Franz Glasner <fzglas.hg@dom66.de> parents: 242 diff changeset	55 ALNUM = b"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
86417af99561 genpwd: Implement ascii and alnum and their safe variants Franz Glasner <fzglas.hg@dom66.de> parents: 242 diff changeset	56 # safer alpha-numberic without visually similar characters
86417af99561 genpwd: Implement ascii and alnum and their safe variants Franz Glasner <fzglas.hg@dom66.de> parents: 242 diff changeset	57 SAFE_ALNUM = b"23456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz"
86417af99561 genpwd: Implement ascii and alnum and their safe variants Franz Glasner <fzglas.hg@dom66.de> parents: 242 diff changeset	58
227 4bb2d0975cfe imports: import genpwd,py from fmgbackup4. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	59
4bb2d0975cfe imports: import genpwd,py from fmgbackup4. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	60 PY2 = sys.version_info[0] <= 2
4bb2d0975cfe imports: import genpwd,py from fmgbackup4. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	61
4bb2d0975cfe imports: import genpwd,py from fmgbackup4. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	62
231 6d8443878a00 Use argparse in genpwd.py now. Franz Glasner <fzglas.hg@dom66.de> parents: 230 diff changeset	63 def main(argv=None):
6d8443878a00 Use argparse in genpwd.py now. Franz Glasner <fzglas.hg@dom66.de> parents: 230 diff changeset	64 aparser = argparse.ArgumentParser(
252 0a2a162c5ad7 genpwd: Wording in help and docs Franz Glasner <fzglas.hg@dom66.de> parents: 251 diff changeset	65 description="A simple password generator for passwords with a given"
0a2a162c5ad7 genpwd: Wording in help and docs Franz Glasner <fzglas.hg@dom66.de> parents: 251 diff changeset	66 " length within a selected character repertoire",
231 6d8443878a00 Use argparse in genpwd.py now. Franz Glasner <fzglas.hg@dom66.de> parents: 230 diff changeset	67 fromfile_prefix_chars='@')
6d8443878a00 Use argparse in genpwd.py now. Franz Glasner <fzglas.hg@dom66.de> parents: 230 diff changeset	68 aparser.add_argument(
253 4314ee20927a genpwd: more consistency with regard to help messages Franz Glasner <fzglas.hg@dom66.de> parents: 252 diff changeset	69 "-v", "--version", action="version",
235 11819361ea39 Implement option "-e" for genpwd to require a binary length instead of the output length. Franz Glasner <fzglas.hg@dom66.de> parents: 234 diff changeset	70 version="%s (rv:%s)" % (__version__, __revision__))
249 f161448d673e genpwd: allow with "--repertoire REPERTOIRE" to select from given character REPERTOIRE Franz Glasner <fzglas.hg@dom66.de> parents: 248 diff changeset	71 group = aparser.add_mutually_exclusive_group()
f161448d673e genpwd: allow with "--repertoire REPERTOIRE" to select from given character REPERTOIRE Franz Glasner <fzglas.hg@dom66.de> parents: 248 diff changeset	72 group.add_argument(
248 4796e5da04ee genpwd: Rename "--repertoire" to "--algorithm" Franz Glasner <fzglas.hg@dom66.de> parents: 247 diff changeset	73 "--algorithm", "-a",
246 c29266444003 genpwd: Implement "uri" Franz Glasner <fzglas.hg@dom66.de> parents: 245 diff changeset	74 choices=("web", "safe-web", "safe-web-2",
c29266444003 genpwd: Implement "uri" Franz Glasner <fzglas.hg@dom66.de> parents: 245 diff changeset	75 "uri", "safe-uri", "safe-uri-2",
c29266444003 genpwd: Implement "uri" Franz Glasner <fzglas.hg@dom66.de> parents: 245 diff changeset	76 "ascii", "safe-ascii",
243 86417af99561 genpwd: Implement ascii and alnum and their safe variants Franz Glasner <fzglas.hg@dom66.de> parents: 242 diff changeset	77 "alnum", "safe-alnum",
246 c29266444003 genpwd: Implement "uri" Franz Glasner <fzglas.hg@dom66.de> parents: 245 diff changeset	78 "bin-base64", "bin-urlsafe-base64", "bin-base32", "bin-hex",
c29266444003 genpwd: Implement "uri" Franz Glasner <fzglas.hg@dom66.de> parents: 245 diff changeset	79 "bin-ascii85",),
245 35c06dcca856 genpwd: make the default "safe-ascii" Franz Glasner <fzglas.hg@dom66.de> parents: 244 diff changeset	80 default="safe-ascii",
242 ae9bc3006efc Enhanced help message: describe the "bin-" prefix Franz Glasner <fzglas.hg@dom66.de> parents: 241 diff changeset	81 help="""
248 4796e5da04ee genpwd: Rename "--repertoire" to "--algorithm" Franz Glasner <fzglas.hg@dom66.de> parents: 247 diff changeset	82 Select an algorithm and (implicitly) a character repertoire.
4796e5da04ee genpwd: Rename "--repertoire" to "--algorithm" Franz Glasner <fzglas.hg@dom66.de> parents: 247 diff changeset	83 All repertoires that start with `bin-' just encode the output of
242 ae9bc3006efc Enhanced help message: describe the "bin-" prefix Franz Glasner <fzglas.hg@dom66.de> parents: 241 diff changeset	84 "os.urandom()" with the selected encoder.
248 4796e5da04ee genpwd: Rename "--repertoire" to "--algorithm" Franz Glasner <fzglas.hg@dom66.de> parents: 247 diff changeset	85 All repertoires that end with `-safe' or `safe-2' do not contain visually
4796e5da04ee genpwd: Rename "--repertoire" to "--algorithm" Franz Glasner <fzglas.hg@dom66.de> parents: 247 diff changeset	86 similar characters (currently `0O' or `Il1').
4796e5da04ee genpwd: Rename "--repertoire" to "--algorithm" Franz Glasner <fzglas.hg@dom66.de> parents: 247 diff changeset	87 All repertoires that end with `-2' are variants with a bias to punctuation
249 f161448d673e genpwd: allow with "--repertoire REPERTOIRE" to select from given character REPERTOIRE Franz Glasner <fzglas.hg@dom66.de> parents: 248 diff changeset	88 characters.
f161448d673e genpwd: allow with "--repertoire REPERTOIRE" to select from given character REPERTOIRE Franz Glasner <fzglas.hg@dom66.de> parents: 248 diff changeset	89 This is incompatible with option `--repertoire'.
f161448d673e genpwd: allow with "--repertoire REPERTOIRE" to select from given character REPERTOIRE Franz Glasner <fzglas.hg@dom66.de> parents: 248 diff changeset	90 Default: safe-ascii""")
f161448d673e genpwd: allow with "--repertoire REPERTOIRE" to select from given character REPERTOIRE Franz Glasner <fzglas.hg@dom66.de> parents: 248 diff changeset	91 group.add_argument(
f161448d673e genpwd: allow with "--repertoire REPERTOIRE" to select from given character REPERTOIRE Franz Glasner <fzglas.hg@dom66.de> parents: 248 diff changeset	92 "--repertoire", "-r",
f161448d673e genpwd: allow with "--repertoire REPERTOIRE" to select from given character REPERTOIRE Franz Glasner <fzglas.hg@dom66.de> parents: 248 diff changeset	93 action="store", metavar="REPERTOIRE",
f161448d673e genpwd: allow with "--repertoire REPERTOIRE" to select from given character REPERTOIRE Franz Glasner <fzglas.hg@dom66.de> parents: 248 diff changeset	94 help="""
f161448d673e genpwd: allow with "--repertoire REPERTOIRE" to select from given character REPERTOIRE Franz Glasner <fzglas.hg@dom66.de> parents: 248 diff changeset	95 Select from given character repertoire.
f161448d673e genpwd: allow with "--repertoire REPERTOIRE" to select from given character REPERTOIRE Franz Glasner <fzglas.hg@dom66.de> parents: 248 diff changeset	96 The repertoire must be characters from the ISO-8859-15 character set.
f161448d673e genpwd: allow with "--repertoire REPERTOIRE" to select from given character REPERTOIRE Franz Glasner <fzglas.hg@dom66.de> parents: 248 diff changeset	97 An empty REPERTOIRE selects implicitly the default algorithm.
f161448d673e genpwd: allow with "--repertoire REPERTOIRE" to select from given character REPERTOIRE Franz Glasner <fzglas.hg@dom66.de> parents: 248 diff changeset	98 This is incompatible with option `--algorithm'.""")
231 6d8443878a00 Use argparse in genpwd.py now. Franz Glasner <fzglas.hg@dom66.de> parents: 230 diff changeset	99 aparser.add_argument(
248 4796e5da04ee genpwd: Rename "--repertoire" to "--algorithm" Franz Glasner <fzglas.hg@dom66.de> parents: 247 diff changeset	100 "-E", dest="use_bin_length", action="store_true",
4796e5da04ee genpwd: Rename "--repertoire" to "--algorithm" Franz Glasner <fzglas.hg@dom66.de> parents: 247 diff changeset	101 help="For some repertoires make OUTPUT-LENGTH the number of bytes"
4796e5da04ee genpwd: Rename "--repertoire" to "--algorithm" Franz Glasner <fzglas.hg@dom66.de> parents: 247 diff changeset	102 " that is to be read from random sources instead of output bytes")
4796e5da04ee genpwd: Rename "--repertoire" to "--algorithm" Franz Glasner <fzglas.hg@dom66.de> parents: 247 diff changeset	103 aparser.add_argument(
254 655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	104 "--group", "-G", action="store_true",
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	105 help="""Group the results. If no "--group-sep" or "--group-size" is
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	106 given use their respective defaults.""")
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	107 aparser.add_argument(
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	108 "--group-sep", action="store", default=None, metavar="GROUP-SEP",
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	109 help="""Group the result using GROUP-SEP as separator.
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	110 Option "--group" is implied.
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	111 Default when grouping is enabled is the SPACE character ` '.""")
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	112 aparser.add_argument(
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	113 "--group-size", action="store", type=int, default=None,
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	114 metavar="GROUP-SIZE",
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	115 help="""Group the result using a group size of GROUP-SIZE characters.
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	116 Option "--group" is implied.
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	117 Default when grouping is enabled is 6.""")
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	118 aparser.add_argument(
231 6d8443878a00 Use argparse in genpwd.py now. Franz Glasner <fzglas.hg@dom66.de> parents: 230 diff changeset	119 "req_length", metavar="OUTPUT-LENGTH", type=int,
237 d65a4d861dad Enhance help message Franz Glasner <fzglas.hg@dom66.de> parents: 236 diff changeset	120 help="The required length of the generated output")
227 4bb2d0975cfe imports: import genpwd,py from fmgbackup4. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	121
231 6d8443878a00 Use argparse in genpwd.py now. Franz Glasner <fzglas.hg@dom66.de> parents: 230 diff changeset	122 opts = aparser.parse_args(args=argv)
227 4bb2d0975cfe imports: import genpwd,py from fmgbackup4. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	123
254 655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	124 grouper = None
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	125 if opts.group or opts.group_sep is not None or opts.group_size is not None:
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	126 if opts.group_sep is None:
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	127 gsep = b' '
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	128 else:
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	129 if PY2:
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	130 gsep = opts.group_sep
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	131 else:
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	132 gsep = opts.group_sep.encode("utf8")
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	133 gsize = 6 if opts.group_size is None else opts.group_size
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	134 grouper = make_grouper(sep=gsep, size=gsize)
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	135
249 f161448d673e genpwd: allow with "--repertoire REPERTOIRE" to select from given character REPERTOIRE Franz Glasner <fzglas.hg@dom66.de> parents: 248 diff changeset	136 if opts.repertoire:
f161448d673e genpwd: allow with "--repertoire REPERTOIRE" to select from given character REPERTOIRE Franz Glasner <fzglas.hg@dom66.de> parents: 248 diff changeset	137 try:
f161448d673e genpwd: allow with "--repertoire REPERTOIRE" to select from given character REPERTOIRE Franz Glasner <fzglas.hg@dom66.de> parents: 248 diff changeset	138 repertoire = (opts.repertoire
f161448d673e genpwd: allow with "--repertoire REPERTOIRE" to select from given character REPERTOIRE Franz Glasner <fzglas.hg@dom66.de> parents: 248 diff changeset	139 if PY2
f161448d673e genpwd: allow with "--repertoire REPERTOIRE" to select from given character REPERTOIRE Franz Glasner <fzglas.hg@dom66.de> parents: 248 diff changeset	140 else opts.repertoire.encode("iso-8859-15"))
f161448d673e genpwd: allow with "--repertoire REPERTOIRE" to select from given character REPERTOIRE Franz Glasner <fzglas.hg@dom66.de> parents: 248 diff changeset	141 except UnicodeError:
f161448d673e genpwd: allow with "--repertoire REPERTOIRE" to select from given character REPERTOIRE Franz Glasner <fzglas.hg@dom66.de> parents: 248 diff changeset	142 raise ValueError("non ISO-8859-15 character in given repertoire")
254 655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	143 pwd = gen_from_repertoire(opts.req_length, repertoire, grouper=grouper)
249 f161448d673e genpwd: allow with "--repertoire REPERTOIRE" to select from given character REPERTOIRE Franz Glasner <fzglas.hg@dom66.de> parents: 248 diff changeset	144 elif opts.algorithm == "web":
254 655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	145 pwd = gen_from_repertoire(
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	146 opts.req_length, WEB_CHARS, grouper=grouper)
248 4796e5da04ee genpwd: Rename "--repertoire" to "--algorithm" Franz Glasner <fzglas.hg@dom66.de> parents: 247 diff changeset	147 elif opts.algorithm == "safe-web":
254 655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	148 pwd = gen_from_repertoire(
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	149 opts.req_length, SAFE_WEB_CHARS, grouper=grouper)
248 4796e5da04ee genpwd: Rename "--repertoire" to "--algorithm" Franz Glasner <fzglas.hg@dom66.de> parents: 247 diff changeset	150 elif opts.algorithm == "safe-web-2":
254 655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	151 pwd = gen_from_repertoire(
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	152 opts.req_length, SAFE_WEB_CHARS_2, grouper=grouper)
248 4796e5da04ee genpwd: Rename "--repertoire" to "--algorithm" Franz Glasner <fzglas.hg@dom66.de> parents: 247 diff changeset	153 elif opts.algorithm == "uri":
254 655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	154 pwd = gen_from_repertoire(
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	155 opts.req_length, URI_CHARS, grouper=grouper)
248 4796e5da04ee genpwd: Rename "--repertoire" to "--algorithm" Franz Glasner <fzglas.hg@dom66.de> parents: 247 diff changeset	156 elif opts.algorithm == "safe-uri":
254 655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	157 pwd = gen_from_repertoire(
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	158 opts.req_length, SAFE_URI_CHARS, grouper=grouper)
248 4796e5da04ee genpwd: Rename "--repertoire" to "--algorithm" Franz Glasner <fzglas.hg@dom66.de> parents: 247 diff changeset	159 elif opts.algorithm == "safe-uri-2":
254 655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	160 pwd = gen_from_repertoire(
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	161 opts.req_length, SAFE_URI_CHARS_2, grouper=grouper)
248 4796e5da04ee genpwd: Rename "--repertoire" to "--algorithm" Franz Glasner <fzglas.hg@dom66.de> parents: 247 diff changeset	162 elif opts.algorithm == "ascii":
254 655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	163 pwd = gen_from_repertoire(
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	164 opts.req_length, FULL_ASCII, grouper=grouper)
248 4796e5da04ee genpwd: Rename "--repertoire" to "--algorithm" Franz Glasner <fzglas.hg@dom66.de> parents: 247 diff changeset	165 elif opts.algorithm == "safe-ascii":
254 655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	166 pwd = gen_from_repertoire(
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	167 opts.req_length, SAFE_ASCII, grouper=grouper)
248 4796e5da04ee genpwd: Rename "--repertoire" to "--algorithm" Franz Glasner <fzglas.hg@dom66.de> parents: 247 diff changeset	168 elif opts.algorithm == "alnum":
254 655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	169 pwd = gen_from_repertoire(opts.req_length, ALNUM, grouper=grouper)
248 4796e5da04ee genpwd: Rename "--repertoire" to "--algorithm" Franz Glasner <fzglas.hg@dom66.de> parents: 247 diff changeset	170 elif opts.algorithm == "safe-alnum":
254 655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	171 pwd = gen_from_repertoire(
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	172 opts.req_length, SAFE_ALNUM, grouper=grouper)
248 4796e5da04ee genpwd: Rename "--repertoire" to "--algorithm" Franz Glasner <fzglas.hg@dom66.de> parents: 247 diff changeset	173 elif opts.algorithm == "bin-base64":
227 4bb2d0975cfe imports: import genpwd,py from fmgbackup4. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	174 encoder = base64.b64encode
235 11819361ea39 Implement option "-e" for genpwd to require a binary length instead of the output length. Franz Glasner <fzglas.hg@dom66.de> parents: 234 diff changeset	175 pwd = gen_bin(opts.req_length, opts.use_bin_length, encoder,
254 655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	176 rstrip_chars=b"=", grouper=grouper)
248 4796e5da04ee genpwd: Rename "--repertoire" to "--algorithm" Franz Glasner <fzglas.hg@dom66.de> parents: 247 diff changeset	177 elif opts.algorithm == "bin-urlsafe-base64":
232 7ac8a2537bc9 Implement the urlsafe base64 character repertoire Franz Glasner <fzglas.hg@dom66.de> parents: 231 diff changeset	178 encoder = base64.urlsafe_b64encode
235 11819361ea39 Implement option "-e" for genpwd to require a binary length instead of the output length. Franz Glasner <fzglas.hg@dom66.de> parents: 234 diff changeset	179 pwd = gen_bin(opts.req_length, opts.use_bin_length, encoder,
254 655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	180 rstrip_chars=b"=", grouper=grouper)
248 4796e5da04ee genpwd: Rename "--repertoire" to "--algorithm" Franz Glasner <fzglas.hg@dom66.de> parents: 247 diff changeset	181 elif opts.algorithm == "bin-base32":
227 4bb2d0975cfe imports: import genpwd,py from fmgbackup4. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	182 encoder = base64.b32encode
235 11819361ea39 Implement option "-e" for genpwd to require a binary length instead of the output length. Franz Glasner <fzglas.hg@dom66.de> parents: 234 diff changeset	183 pwd = gen_bin(opts.req_length, opts.use_bin_length, encoder,
254 655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	184 rstrip_chars=b"=", grouper=grouper)
248 4796e5da04ee genpwd: Rename "--repertoire" to "--algorithm" Franz Glasner <fzglas.hg@dom66.de> parents: 247 diff changeset	185 elif opts.algorithm == "bin-ascii85":
227 4bb2d0975cfe imports: import genpwd,py from fmgbackup4. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	186 encoder = base64.a85encode
254 655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	187 pwd = gen_bin(
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	188 opts.req_length, opts.use_bin_length, encoder, grouper=grouper)
248 4796e5da04ee genpwd: Rename "--repertoire" to "--algorithm" Franz Glasner <fzglas.hg@dom66.de> parents: 247 diff changeset	189 elif opts.algorithm == "bin-hex":
241 d4501acb0a7c Implement a "bin-hex" password selection/repertoire Franz Glasner <fzglas.hg@dom66.de> parents: 240 diff changeset	190 encoder = binascii.hexlify
254 655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	191 pwd = gen_bin(
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	192 opts.req_length, opts.use_bin_length, encoder, grouper=grouper)
227 4bb2d0975cfe imports: import genpwd,py from fmgbackup4. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	193 else:
248 4796e5da04ee genpwd: Rename "--repertoire" to "--algorithm" Franz Glasner <fzglas.hg@dom66.de> parents: 247 diff changeset	194 raise NotImplementedError("algorithm not yet implemented: %s"
4796e5da04ee genpwd: Rename "--repertoire" to "--algorithm" Franz Glasner <fzglas.hg@dom66.de> parents: 247 diff changeset	195 % opts.algorithm)
254 655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	196 if opts.group or opts.group_size or opts.group_sep:
235 11819361ea39 Implement option "-e" for genpwd to require a binary length instead of the output length. Franz Glasner <fzglas.hg@dom66.de> parents: 234 diff changeset	197 if len(pwd) < opts.req_length:
11819361ea39 Implement option "-e" for genpwd to require a binary length instead of the output length. Franz Glasner <fzglas.hg@dom66.de> parents: 234 diff changeset	198 raise AssertionError("internal length mismatch")
11819361ea39 Implement option "-e" for genpwd to require a binary length instead of the output length. Franz Glasner <fzglas.hg@dom66.de> parents: 234 diff changeset	199 else:
254 655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	200 if opts.use_bin_length:
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	201 if len(pwd) < opts.req_length:
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	202 raise AssertionError("internal length mismatch")
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	203 else:
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	204 if len(pwd) != opts.req_length:
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	205 raise AssertionError("internal length mismatch")
250 48f89d312309 genpwd: use binary output on Python3 to prevent double encoding Franz Glasner <fzglas.hg@dom66.de> parents: 249 diff changeset	206 if PY2:
48f89d312309 genpwd: use binary output on Python3 to prevent double encoding Franz Glasner <fzglas.hg@dom66.de> parents: 249 diff changeset	207 print(pwd)
48f89d312309 genpwd: use binary output on Python3 to prevent double encoding Franz Glasner <fzglas.hg@dom66.de> parents: 249 diff changeset	208 sys.stdout.flush()
48f89d312309 genpwd: use binary output on Python3 to prevent double encoding Franz Glasner <fzglas.hg@dom66.de> parents: 249 diff changeset	209 else:
48f89d312309 genpwd: use binary output on Python3 to prevent double encoding Franz Glasner <fzglas.hg@dom66.de> parents: 249 diff changeset	210 sys.stdout.buffer.write(pwd)
48f89d312309 genpwd: use binary output on Python3 to prevent double encoding Franz Glasner <fzglas.hg@dom66.de> parents: 249 diff changeset	211 sys.stdout.buffer.write(b'\n')
48f89d312309 genpwd: use binary output on Python3 to prevent double encoding Franz Glasner <fzglas.hg@dom66.de> parents: 249 diff changeset	212 sys.stdout.buffer.flush()
227 4bb2d0975cfe imports: import genpwd,py from fmgbackup4. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	213
4bb2d0975cfe imports: import genpwd,py from fmgbackup4. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	214
254 655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	215 def gen_from_repertoire(length, repertoire, grouper=None):
240 32616df2732e Renamed algorithms/repertoire selection: use a "bin-" prefix when just the output of os.urandom() is encoded Franz Glasner <fzglas.hg@dom66.de> parents: 239 diff changeset	216 """Select `length` characters randomly from given character repertoire
32616df2732e Renamed algorithms/repertoire selection: use a "bin-" prefix when just the output of os.urandom() is encoded Franz Glasner <fzglas.hg@dom66.de> parents: 239 diff changeset	217 `repertoire`.
32616df2732e Renamed algorithms/repertoire selection: use a "bin-" prefix when just the output of os.urandom() is encoded Franz Glasner <fzglas.hg@dom66.de> parents: 239 diff changeset	218
32616df2732e Renamed algorithms/repertoire selection: use a "bin-" prefix when just the output of os.urandom() is encoded Franz Glasner <fzglas.hg@dom66.de> parents: 239 diff changeset	219 """
227 4bb2d0975cfe imports: import genpwd,py from fmgbackup4. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	220 assert len(repertoire) <= 256
4bb2d0975cfe imports: import genpwd,py from fmgbackup4. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	221 pwd = []
4bb2d0975cfe imports: import genpwd,py from fmgbackup4. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	222 while len(pwd) < length:
238 ff13b2a863ba Make selection from a character repertoire more evenly distributed Franz Glasner <fzglas.hg@dom66.de> parents: 237 diff changeset	223 rndbytes = os.urandom(16)
ff13b2a863ba Make selection from a character repertoire more evenly distributed Franz Glasner <fzglas.hg@dom66.de> parents: 237 diff changeset	224 for c in rndbytes:
ff13b2a863ba Make selection from a character repertoire more evenly distributed Franz Glasner <fzglas.hg@dom66.de> parents: 237 diff changeset	225 if PY2:
ff13b2a863ba Make selection from a character repertoire more evenly distributed Franz Glasner <fzglas.hg@dom66.de> parents: 237 diff changeset	226 c = ord(c)
ff13b2a863ba Make selection from a character repertoire more evenly distributed Franz Glasner <fzglas.hg@dom66.de> parents: 237 diff changeset	227 if c < len(repertoire):
ff13b2a863ba Make selection from a character repertoire more evenly distributed Franz Glasner <fzglas.hg@dom66.de> parents: 237 diff changeset	228 pwd.append(repertoire[c])
ff13b2a863ba Make selection from a character repertoire more evenly distributed Franz Glasner <fzglas.hg@dom66.de> parents: 237 diff changeset	229 if len(pwd) >= length:
ff13b2a863ba Make selection from a character repertoire more evenly distributed Franz Glasner <fzglas.hg@dom66.de> parents: 237 diff changeset	230 break
227 4bb2d0975cfe imports: import genpwd,py from fmgbackup4. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	231 if PY2:
4bb2d0975cfe imports: import genpwd,py from fmgbackup4. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	232 pwd = b''.join(pwd)
4bb2d0975cfe imports: import genpwd,py from fmgbackup4. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	233 else:
4bb2d0975cfe imports: import genpwd,py from fmgbackup4. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	234 pwd = bytes(pwd)
254 655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	235 if grouper:
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	236 pwd = grouper(pwd)
227 4bb2d0975cfe imports: import genpwd,py from fmgbackup4. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	237 return pwd
4bb2d0975cfe imports: import genpwd,py from fmgbackup4. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	238
4bb2d0975cfe imports: import genpwd,py from fmgbackup4. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	239
254 655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	240 def gen_bin(length, use_bin_length, encoder, rstrip_chars=None, grouper=None):
240 32616df2732e Renamed algorithms/repertoire selection: use a "bin-" prefix when just the output of os.urandom() is encoded Franz Glasner <fzglas.hg@dom66.de> parents: 239 diff changeset	241 """Generate from :func:`os.urandom` and just encode with given `encoder`.
32616df2732e Renamed algorithms/repertoire selection: use a "bin-" prefix when just the output of os.urandom() is encoded Franz Glasner <fzglas.hg@dom66.de> parents: 239 diff changeset	242
32616df2732e Renamed algorithms/repertoire selection: use a "bin-" prefix when just the output of os.urandom() is encoded Franz Glasner <fzglas.hg@dom66.de> parents: 239 diff changeset	243 """
227 4bb2d0975cfe imports: import genpwd,py from fmgbackup4. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	244 pwd = encoder(os.urandom(length))
254 655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	245 pwd = pwd.rstrip(rstrip_chars) if use_bin_length else pwd[:length]
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	246 if grouper:
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	247 pwd = grouper(pwd)
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	248 return pwd
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	249
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	250
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	251 def make_grouper(sep=b' ', size=6):
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	252
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	253 def _grouper(pwd):
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	254 if not pwd or size <= 0:
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	255 return pwd
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	256 assert isinstance(pwd, bytes)
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	257 groups = []
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	258 idx = 0
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	259 while idx < len(pwd):
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	260 groups.append(pwd[idx:idx+size])
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	261 idx += size
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	262 return sep.join(groups)
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	263
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	264 assert isinstance(sep, bytes)
655f9e4bc6f2 genpwd: allow grouping of the output Franz Glasner <fzglas.hg@dom66.de> parents: 253 diff changeset	265 return _grouper
227 4bb2d0975cfe imports: import genpwd,py from fmgbackup4. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	266
4bb2d0975cfe imports: import genpwd,py from fmgbackup4. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	267
4bb2d0975cfe imports: import genpwd,py from fmgbackup4. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	268 if __name__ == "__main__":
4bb2d0975cfe imports: import genpwd,py from fmgbackup4. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	269 main()

Mercurial > hgrepos > Python > apps > py-cutils

annotate cutils/genpwd.py @ 375:7044c2900890