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jc/jc/parsers/shadow.py

184 lines
4.1 KiB
Python

"""jc - JSON CLI output utility `/etc/shadow` file parser
Usage (cli):
$ sudo cat /etc/shadow | jc --shadow
Usage (module):
import jc.parsers.shadow
result = jc.parsers.shadow.parse(shadow_file_output)
Schema:
[
{
"username": string,
"password": string,
"last_changed": integer,
"minimum": integer,
"maximum": integer,
"warn": integer,
"inactive": integer,
"expire": integer
}
]
Examples:
$ sudo cat /etc/shadow | jc --shadow -p
[
{
"username": "root",
"password": "*",
"last_changed": 18113,
"minimum": 0,
"maximum": 99999,
"warn": 7,
"inactive": null,
"expire": null
},
{
"username": "daemon",
"password": "*",
"last_changed": 18113,
"minimum": 0,
"maximum": 99999,
"warn": 7,
"inactive": null,
"expire": null
},
{
"username": "bin",
"password": "*",
"last_changed": 18113,
"minimum": 0,
"maximum": 99999,
"warn": 7,
"inactive": null,
"expire": null
},
...
]
$ sudo cat /etc/shadow | jc --shadow -p -r
[
{
"username": "root",
"password": "*",
"last_changed": "18113",
"minimum": "0",
"maximum": "99999",
"warn": "7",
"inactive": "",
"expire": ""
},
{
"username": "daemon",
"password": "*",
"last_changed": "18113",
"minimum": "0",
"maximum": "99999",
"warn": "7",
"inactive": "",
"expire": ""
},
{
"username": "bin",
"password": "*",
"last_changed": "18113",
"minimum": "0",
"maximum": "99999",
"warn": "7",
"inactive": "",
"expire": ""
},
...
]
"""
import jc.utils
class info():
"""Provides parser metadata (version, author, etc.)"""
version = '1.4'
description = '`/etc/shadow` file parser'
author = 'Kelly Brazil'
author_email = 'kellyjonbrazil@gmail.com'
# details = 'enter any other details here'
# compatible options: linux, darwin, cygwin, win32, aix, freebsd
compatible = ['linux', 'darwin', 'aix', 'freebsd']
__version__ = info.version
def _process(proc_data):
"""
Final processing to conform to the schema.
Parameters:
proc_data: (List of Dictionaries) raw structured data to process
Returns:
List of Dictionaries. Structured data to conform to the schema.
"""
for entry in proc_data:
int_list = ['last_changed', 'minimum', 'maximum', 'warn', 'inactive', 'expire']
for key in entry:
if key in int_list:
entry[key] = jc.utils.convert_to_int(entry[key])
return proc_data
def parse(data, raw=False, quiet=False):
"""
Main text parsing function
Parameters:
data: (string) text data to parse
raw: (boolean) output preprocessed JSON if True
quiet: (boolean) suppress warning messages if True
Returns:
List of Dictionaries. Raw or processed structured data.
"""
jc.utils.compatibility(__name__, info.compatible, quiet)
jc.utils.input_type_check(data)
raw_output = []
# Clear any blank lines
cleandata = list(filter(None, data.splitlines()))
if jc.utils.has_data(data):
for entry in cleandata:
if entry.startswith('#'):
continue
output_line = {}
fields = entry.split(':')
output_line['username'] = fields[0]
output_line['password'] = fields[1]
output_line['last_changed'] = fields[2]
output_line['minimum'] = fields[3]
output_line['maximum'] = fields[4]
output_line['warn'] = fields[5]
output_line['inactive'] = fields[6]
output_line['expire'] = fields[7]
raw_output.append(output_line)
if raw:
return raw_output
else:
return _process(raw_output)