initial draft acl module

Signed-off-by: Brian Coca <briancoca+dev@gmail.com>
pull/3610/head
Brian Coca 11 years ago
parent efaaaa6c79
commit 0c7add6951

@ -0,0 +1,156 @@
#!/usr/bin/python
# 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/>.
DOCUMENTATION = '''
---
module: acl
version_added: "1.3"
short_description: set and retrieve file acl
description:
- Sets and retrivies acl for a file
options:
name:
required: true
default: None
description:
- The full path of the file/object to get the facts of
aliases: ['path']
entry:
required: false
default: None
description:
- The acl to set/remove. MUST always quote! In form of '<type>:<qualifier>:<perms>', qualifier may be empty for some types but type and perms are always requried. '-' can be used as placeholder when you don't care about permissions.
state:
required: false
default: get
choices: [ 'get', 'present', 'absent' ]
description:
- defines which operation you want to do. C(get) get the current acl C(present) sets/changes the acl, requires entry field C(absent) deletes the acl, requires entry field
follow:
required: false
default: yes
choices: [ 'yes', 'no' ]
description:
- if yes, dereferences symlinks and sets/gets attributes on symlink target, otherwise acts on symlink itself.
author: Brian Coca
notes:
- The "acl" module requires that acl is enabled on the target filesystem and that the setfacl and getfacl binaries are installed.
'''
EXAMPLES = '''
# Obtain the acl of /etc/foo.conf
- acl: name=/etc/foo.conf
# Grants joe read access to foo
- acl: name=/etc/foo.conf entry="u:joe:r" state=present
# Removes the acl for joe
- acl: name=/etc/foo.conf entry="u:joe" state=absent
'''
try:
import posix1e
except:
module.fail_json(msg="Could not import required module pylibacl (posix1e)")
def main():
module = AnsibleModule(
argument_spec = dict(
name = dict(required=True,aliases=['path']),
entry = dict(required=False, default=None),
state = dict(required=False, default='get', choices=[ 'get', 'present', 'absent' ], type='str'),
follow = dict(required=False, type='bool', default=True),
),
supports_check_mode=True,
)
path = module.params.get('name')
entry = module.params.get('entry')
state = module.params.get('state')
follow = module.params.get('follow')
if not os.path.exists(path):
module.fail_json(msg="path not found or not accessible!")
if entry is None and state in ['present','absent']:
module.fail_json(msg="%s needs entry to be set" % state)
if entry.count(":") != 3:
module.fail_json(msg="Invalid entry: '%s', it requires 3 sections divided by ':'" % entry)
changed=False
changes=0
msg = ""
currentacl = posix1e.ACL(file=path)
newacl = currentacl
res = currentacl
if (state == 'present'):
for newe in posix1e.ACL(text=entry):
matched = False
for olde in currentacl:
diff = False
if olde.tag_type == newe.tag_type:
if newe.tag_type in [ posix1e.ACL_GROUP, posix1e.ACL_USER ]:
if olde.qualifier == newe.qualifier:
matched = True
if not str(olde.permset) == str(newe.permset):
diff = True
else:
matched = True
if not str(olde.permset) == str(newe.permset):
diff = True
if diff:
newacl.delete_entry(olde)
newacl.append(newe)
changes=changes+1
if matched:
break
if not matched:
newacl.append(newe)
changes=changes+1
msg="%s is present" % (entry)
elif state == 'absent':
for rme in posix1e.ACL(text=entry):
for olde in currentacl:
if olde.tag_type == rme.tag_type:
if rme.tag_type in [ posix1e.ACL_GROUP, posix1e.ACL_USER ]:
if olde.qualifier == rme.qualifier:
newacl.delete_entry(olde)
changes=changes+1
break
else:
newacl.delete_entry(olde)
changes=changes+1
break
msg="%s is absent" % (entry)
else:
msg="current acl"
if changes > 0:
if not newacl.valid():
module.fail_json("Invalid acl constructed: %s" % newacl.to_any_text())
if not module.check_mode:
newacl.applyto(path)
changed=True
res=newacl
msg="%s. %d entries changed" % (msg,changes)
module.exit_json(changed=changed, msg=msg, acl=res.to_any_text().split())
# this is magic, see lib/ansible/module_common.py
#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
main()
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