homeserver/ansible_collections/community/general/plugins/lookup/random_words.py
mg c648a48c4c systemd: sanoid (#346)
Co-authored-by: Michael Grote <michael.grote@posteo.de>
Reviewed-on: mg/ansible#346
Co-authored-by: mg <michael.grote@posteo.de>
Co-committed-by: mg <michael.grote@posteo.de>
2022-04-03 11:04:27 +02:00

119 lines
3.6 KiB
Python

# -*- coding: utf-8 -*-
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
"""The community.general.random_words Ansible lookup plugin."""
from __future__ import absolute_import, division, print_function
__metaclass__ = type
DOCUMENTATION = r"""
name: random_words
author:
- Thomas Sjögren (@konstruktoid)
short_description: Return a number of random words
version_added: "4.0.0"
requirements:
- xkcdpass U(https://github.com/redacted/XKCD-password-generator)
description:
- Returns a number of random words. The output can for example be used for
passwords.
- See U(https://xkcd.com/936/) for background.
options:
numwords:
description:
- The number of words.
default: 6
type: int
min_length:
description:
- Minimum length of words to make password.
default: 5
type: int
max_length:
description:
- Maximum length of words to make password.
default: 9
type: int
delimiter:
description:
- The delimiter character between words.
default: " "
type: str
case:
description:
- The method for setting the case of each word in the passphrase.
choices: ["alternating", "upper", "lower", "random", "capitalize"]
default: "lower"
type: str
"""
EXAMPLES = r"""
- name: Generate password with default settings
ansible.builtin.debug:
var: lookup('community.general.random_words')
# Example result: 'traitor gigabyte cesarean unless aspect clear'
- name: Generate password with six, five character, words
ansible.builtin.debug:
var: lookup('community.general.random_words', min_length=5, max_length=5)
# Example result: 'brink banjo getup staff trump comfy'
- name: Generate password with three capitalized words and the '-' delimiter
ansible.builtin.debug:
var: lookup('community.general.random_words', numwords=3, delimiter='-', case='capitalize')
# Example result: 'Overlabor-Faucet-Coastline'
- name: Generate password with three words without any delimiter
ansible.builtin.debug:
var: lookup('community.general.random_words', numwords=3, delimiter='')
# Example result: 'deskworkmonopolystriking'
# https://www.ncsc.gov.uk/blog-post/the-logic-behind-three-random-words
"""
RETURN = r"""
_raw:
description: A single-element list containing random words.
type: list
elements: str
"""
from ansible.errors import AnsibleLookupError
from ansible.plugins.lookup import LookupBase
try:
from xkcdpass import xkcd_password as xp
HAS_XKCDPASS = True
except ImportError:
HAS_XKCDPASS = False
class LookupModule(LookupBase):
"""The random_words Ansible lookup class."""
def run(self, terms, variables=None, **kwargs):
if not HAS_XKCDPASS:
raise AnsibleLookupError(
"Python xkcdpass library is required. "
'Please install using "pip install xkcdpass"'
)
self.set_options(var_options=variables, direct=kwargs)
method = self.get_option("case")
delimiter = self.get_option("delimiter")
max_length = self.get_option("max_length")
min_length = self.get_option("min_length")
numwords = self.get_option("numwords")
words = xp.locate_wordfile()
wordlist = xp.generate_wordlist(
max_length=max_length, min_length=min_length, wordfile=words
)
values = xp.generate_xkcdpassword(
wordlist, case=method, delimiter=delimiter, numwords=numwords
)
return [values]