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Added module for managing Apple Mac OSX user defaults

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Franck Nijhof 2014-10-12 00:20:00 +02:00 committed by Matt Clay
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#!/usr/bin/python
# -*- coding: utf-8 -*-
# (c) 2014, GeekChimp - Franck Nijhof <franck@geekchimp.com>
#
# Originally developed for Macable: https://github.com/GeekChimp/macable
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
DOCUMENTATION = '''
---
module: mac_defaults
author: Franck Nijhof
short_description: mac_defaults allows users to read, write, and delete Mac OS X user defaults from Ansible
description:
- mac_defaults allows users to read, write, and delete Mac OS X user defaults from Ansible scripts.
Mac OS X applications and other programs use the defaults system to record user preferences and other
information that must be maintained when the applications aren't running (such as default font for new
documents, or the position of an Info panel).
version_added: 1.8
options:
domain:
description:
- The domain is a domain name of the form com.companyname.appname.
required: false
default: NSGlobalDomain
key:
description:
- The key of the user preference
required: true
type:
description:
- The type of value to write.
required: false
default: string
choices: [ "array", "bool", "boolean", "date", "float", "int", "integer", "string" ]
array_add:
description:
- Add new elements to the array for a key which has an array as its value.
required: false
default: string
choices: [ "true", "false" ]
value:
description:
- The value to write. Only required when state = present.
required: false
default: null
state:
description:
- The state of the user defaults
required: false
default: present
choices: [ "present", "absent" ]
notes:
- Apple Mac caches defaults. You may need to logout and login to apply the changes.
'''
EXAMPLES = '''
- mac_defaults: domain=com.apple.Safari key=IncludeInternalDebugMenu type=bool value=true state=present
- mac_defaults: domain=NSGlobalDomain key=AppleMeasurementUnits type=string value=Centimeters state=present
- mac_defaults: key=AppleMeasurementUnits type=string value=Centimeters
- mac_defaults:
key: AppleLanguages
type: array
value: ["en", "nl"]
- mac_defaults: domain=com.geekchimp.macable key=ExampleKeyToRemove state=absent
'''
from datetime import datetime
# exceptions --------------------------------------------------------------- {{{
class MacDefaultsException(Exception):
pass
# /exceptions -------------------------------------------------------------- }}}
# class MacDefaults -------------------------------------------------------- {{{
class MacDefaults(object):
""" Class to manage Mac OS user defaults """
# init ---------------------------------------------------------------- {{{
""" Initialize this module. Finds 'defaults' executable and preps the parameters """
def __init__(self, **kwargs):
# Initial var for storing current defaults value
self.current_value = None
# Just set all given parameters
for key, val in kwargs.iteritems():
setattr(self, key, val)
# Try to find the defaults executable
self.executable = self.module.get_bin_path(
'defaults',
required=False,
opt_dirs=self.path.split(':'),
)
if not self.executable:
raise MacDefaultsException("Unable to locate defaults executable.")
# When state is present, we require a parameter
if self.state == "present" and self.value is None:
raise MacDefaultsException("Missing value parameter")
# Ensure the value is the correct type
self.value = self._convert_type(self.type, self.value)
# /init --------------------------------------------------------------- }}}
# tools --------------------------------------------------------------- {{{
""" Converts value to given type """
def _convert_type(self, type, value):
if type == "string":
return str(value)
elif type in ["bool", "boolean"]:
if value in [True, 1, "true", "1", "yes"]:
return True
elif value in [False, 0, "false", "0", "no"]:
return False
raise MacDefaultsException("Invalid boolean value: {0}".format(repr(value)))
elif type == "date":
try:
return datetime.strptime(value.split("+")[0].strip(), "%Y-%m-%d %H:%M:%S")
except ValueError:
raise MacDefaultsException(
"Invalid date value: {0}. Required format yyy-mm-dd hh:mm:ss.".format(repr(value))
)
elif type in ["int", "integer"]:
if not str(value).isdigit():
raise MacDefaultsException("Invalid integer value: {0}".format(repr(value)))
return int(value)
elif type == "float":
try:
value = float(value)
except ValueError:
raise MacDefaultsException("Invalid float value: {0}".format(repr(value)))
return value
elif type == "array":
if not isinstance(value, list):
raise MacDefaultsException("Invalid value. Expected value to be an array")
return value
raise MacDefaultsException('Type is not supported: {0}'.format(type))
""" Converts array output from defaults to an list """
@staticmethod
def _convert_defaults_str_to_list(value):
# Split output of defaults. Every line contains a value
value = value.splitlines()
# Remove first and last item, those are not actual values
value.pop(0)
value.pop(-1)
# Remove extra spaces and comma (,) at the end of values
value = [re.sub(',$', '', x.strip(' ')) for x in value]
return value
# /tools -------------------------------------------------------------- }}}
# commands ------------------------------------------------------------ {{{
""" Reads value of this domain & key from defaults """
def read(self):
# First try to find out the type
rc, out, err = self.module.run_command([self.executable, "read-type", self.domain, self.key])
# If RC is 1, the key does not exists
if rc == 1:
return None
# If the RC is not 0, then terrible happened! Ooooh nooo!
if rc != 0:
raise MacDefaultsException("An error occurred while reading key type from defaults: " + out)
# Ok, lets parse the type from output
type = out.strip().replace('Type is ', '')
# Now get the current value
rc, out, err = self.module.run_command([self.executable, "read", self.domain, self.key])
# Strip output
# out = out.strip()
# An non zero RC at this point is kinda strange...
if rc != 0:
raise MacDefaultsException("An error occurred while reading key value from defaults: " + out)
# Convert string to list when type is array
if type == "array":
out = self._convert_defaults_str_to_list(out)
# Store the current_value
self.current_value = self._convert_type(type, out)
""" Writes value to this domain & key to defaults """
def write(self):
# We need to convert some values so the defaults commandline understands it
if type(self.value) is bool:
value = "TRUE" if self.value else "FALSE"
elif type(self.value) is int or type(self.value) is float:
value = str(self.value)
elif self.array_add and self.current_value is not None:
value = list(set(self.value) - set(self.current_value))
elif isinstance(self.value, datetime):
value = self.value.strftime('%Y-%m-%d %H:%M:%S')
else:
value = self.value
# When the type is array and array_add is enabled, morph the type :)
if self.type == "array" and self.array_add:
self.type = "array-add"
# All values should be a list, for easy passing it to the command
if not isinstance(value, list):
value = [value]
rc, out, err = self.module.run_command([self.executable, 'write', self.domain, self.key, '-' + self.type] + value)
if rc != 0:
raise MacDefaultsException('An error occurred while writing value to defaults: ' + out)
""" Deletes defaults key from domain """
def delete(self):
rc, out, err = self.module.run_command([self.executable, 'delete', self.domain, self.key])
if rc != 0:
raise MacDefaultsException("An error occurred while deleting key from defaults: " + out)
# /commands ----------------------------------------------------------- }}}
# run ----------------------------------------------------------------- {{{
""" Does the magic! :) """
def run(self):
# Get the current value from defaults
self.read()
# Handle absent state
if self.state == "absent":
print "Absent state detected!"
if self.current_value is None:
return False
self.delete()
return True
# There is a type mismatch! Given type does not match the type in defaults
if self.current_value is not None and type(self.current_value) is not type(self.value):
raise MacDefaultsException("Type mismatch. Type in defaults: " + type(self.current_value).__name__)
# Current value matches the given value. Nothing need to be done. Arrays need extra care
if self.type == "array" and self.current_value is not None and not self.array_add and \
set(self.current_value) == set(self.value):
return False
elif self.type == "array" and self.current_value is not None and self.array_add and \
len(list(set(self.value) - set(self.current_value))) == 0:
return False
elif self.current_value == self.value:
return False
# Change/Create/Set given key/value for domain in defaults
self.write()
return True
# /run ---------------------------------------------------------------- }}}
# /class MacDefaults ------------------------------------------------------ }}}
# main -------------------------------------------------------------------- {{{
def main():
module = AnsibleModule(
argument_spec=dict(
domain=dict(
default="NSGlobalDomain",
required=False,
),
key=dict(
default=None,
),
type=dict(
default="string",
required=False,
choices=[
"array",
"bool",
"boolean",
"date",
"float",
"int",
"integer",
"string",
],
),
array_add=dict(
default=False,
required=False,
choices=BOOLEANS,
),
value=dict(
default=None,
required=False,
),
state=dict(
default="present",
required=False,
choices=[
"absent", "present"
],
),
path=dict(
default="/usr/bin:/usr/local/bin",
required=False,
)
),
supports_check_mode=True,
)
domain = module.params['domain']
key = module.params['key']
type = module.params['type']
array_add = module.params['array_add']
value = module.params['value']
state = module.params['state']
path = module.params['path']
try:
defaults = MacDefaults(module=module, domain=domain, key=key, type=type,
array_add=array_add, value=value, state=state, path=path)
changed = defaults.run()
module.exit_json(changed=changed)
except MacDefaultsException as e:
module.fail_json(msg=e.message)
# /main ------------------------------------------------------------------- }}}
from ansible.module_utils.basic import *
main()