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# (c) 2012-2014, Michael DeHaan <michael.dehaan@gmail.com>
#
# This file is part of Ansible
#
# 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/>.
# Make coding more python3-ish
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
from ansible import constants as C
from ansible.errors import AnsibleParserError
from ansible.playbook.attribute import FieldAttribute
try:
from __main__ import display
except ImportError:
from ansible.utils.display import Display
display = Display()
class Become:
# Privilege escalation
_become = FieldAttribute(isa='bool')
_become_method = FieldAttribute(isa='string')
_become_user = FieldAttribute(isa='string')
_become_flags = FieldAttribute(isa='string')
def __init__(self):
super(Become, self).__init__()
def _detect_privilege_escalation_conflict(self, ds):
# Fail out if user specifies conflicting privilege escalations
has_become = 'become' in ds or 'become_user'in ds
has_sudo = 'sudo' in ds or 'sudo_user' in ds
has_su = 'su' in ds or 'su_user' in ds
if has_become:
msg = 'The become params ("become", "become_user") and'
if has_sudo:
raise AnsibleParserError('%s sudo params ("sudo", "sudo_user") cannot be used together' % msg)
elif has_su:
raise AnsibleParserError('%s su params ("su", "su_user") cannot be used together' % msg)
elif has_sudo and has_su:
raise AnsibleParserError('sudo params ("sudo", "sudo_user") and su params ("su", "su_user") cannot be used together')
def _preprocess_data_become(self, ds):
"""Preprocess the playbook data for become attributes
This is called from the Base object's preprocess_data() method which
in turn is called pretty much anytime any sort of playbook object
(plays, tasks, blocks, etc) is created.
"""
self._detect_privilege_escalation_conflict(ds)
# Privilege escalation, backwards compatibility for sudo/su
if 'sudo' in ds or 'sudo_user' in ds:
ds['become_method'] = 'sudo'
if 'sudo' in ds:
ds['become'] = ds['sudo']
del ds['sudo']
if 'sudo_user' in ds:
ds['become_user'] = ds['sudo_user']
del ds['sudo_user']
display.deprecated("Instead of sudo/sudo_user, use become/become_user and make sure become_method is 'sudo' (default)", '2.6')
elif 'su' in ds or 'su_user' in ds:
ds['become_method'] = 'su'
if 'su' in ds:
ds['become'] = ds['su']
del ds['su']
if 'su_user' in ds:
ds['become_user'] = ds['su_user']
del ds['su_user']
display.deprecated("Instead of su/su_user, use become/become_user and set become_method to 'su' (default is sudo)", '2.6')
return ds
def set_become_defaults(self, become, become_method, become_user):
''' if we are becoming someone else, but some fields are unset,
make sure they're initialized to the default config values '''
if become:
if become_method is None:
become_method = C.DEFAULT_BECOME_METHOD
if become_user is None:
become_user = C.DEFAULT_BECOME_USER
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