mirror of
https://github.com/ansible-collections/community.general.git
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0e2c63212c
- now makes sure a proper mask is added - now captures I/O error produced when group, user or permissions are invalid Signed-off-by: Brian Coca <briancoca+dev@gmail.com>
168 lines
5.7 KiB
Python
168 lines
5.7 KiB
Python
#!/usr/bin/python
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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DOCUMENTATION = '''
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---
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module: acl
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version_added: "1.3"
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short_description: set and retrieve file acl
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description:
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- Sets and retrivies acl for a file
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options:
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name:
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required: true
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default: None
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description:
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- The full path of the file/object to get the facts of
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aliases: ['path']
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entry:
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required: false
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default: None
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description:
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- 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.
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state:
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required: false
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default: get
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choices: [ 'get', 'present', 'absent' ]
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description:
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- 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
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follow:
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required: false
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default: yes
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choices: [ 'yes', 'no' ]
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description:
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- if yes, dereferences symlinks and sets/gets attributes on symlink target, otherwise acts on symlink itself.
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author: Brian Coca
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notes:
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- The "acl" module requires the posix1e module on the target machine and that acl is enabled on the target filesystem.
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'''
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EXAMPLES = '''
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# Obtain the acl of /etc/foo.conf
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- acl: name=/etc/foo.conf
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# Grants joe read access to foo
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- acl: name=/etc/foo.conf entry="u:joe:r" state=present
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# Removes the acl for joe
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- acl: name=/etc/foo.conf entry="u:joe:-" state=absent
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'''
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NO_PYLIBACL=False
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try:
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import posix1e
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except:
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NO_PYLIBACL=True
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def gen_acl(module,entry):
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try:
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return posix1e.ACL(text=entry)
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except IOError, e:
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module.fail_json(msg="Invalid entry: '%s', check that user/groups exist and permissions are correct" % entry)
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def main():
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module = AnsibleModule(
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argument_spec = dict(
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name = dict(required=True,aliases=['path']),
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entry = dict(required=False, default=None),
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state = dict(required=False, default='get', choices=[ 'get', 'present', 'absent' ], type='str'),
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follow = dict(required=False, type='bool', default=True),
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),
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supports_check_mode=True,
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)
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if NO_PYLIBACL:
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module.fail_json(msg="Could not import required module pylibacl (posix1e)")
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path = module.params.get('name')
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entry = module.params.get('entry')
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state = module.params.get('state')
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follow = module.params.get('follow')
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if not os.path.exists(path):
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module.fail_json(msg="path not found or not accessible!")
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if entry is None and state in ['present','absent']:
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module.fail_json(msg="%s needs entry to be set" % state)
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if entry.count(":") != 2:
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module.fail_json(msg="Invalid entry: '%s', it requires 3 sections divided by ':'" % entry)
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changed=False
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changes=0
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msg = ""
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currentacl = posix1e.ACL(file=path)
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newacl = currentacl
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res = currentacl
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if (state == 'present'):
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for newe in gen_acl(module, entry):
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matched = False
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for olde in currentacl:
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diff = False
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if olde.tag_type == newe.tag_type:
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if newe.tag_type in [ posix1e.ACL_GROUP, posix1e.ACL_USER ]:
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if olde.qualifier == newe.qualifier:
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matched = True
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if not str(olde.permset) == str(newe.permset):
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diff = True
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else:
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matched = True
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if not str(olde.permset) == str(newe.permset):
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diff = True
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if diff:
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newacl.delete_entry(olde)
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newacl.append(newe)
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changes=changes+1
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if matched:
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break
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if not matched:
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newacl.append(newe)
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changes=changes+1
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msg="%s is present" % (entry)
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elif state == 'absent':
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for rme in gen_acl(module, entry):
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for olde in currentacl:
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if olde.tag_type == rme.tag_type:
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if rme.tag_type in [ posix1e.ACL_GROUP, posix1e.ACL_USER ]:
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if olde.qualifier == rme.qualifier:
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newacl.delete_entry(olde)
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changes=changes+1
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break
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else:
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newacl.delete_entry(olde)
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changes=changes+1
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break
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msg="%s is absent" % (entry)
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else:
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msg="current acl"
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if changes > 0:
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newacl.calc_mask()
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if not newacl.valid():
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module.fail_json(msg="Invalid acl constructed: %s" % newacl.to_any_text())
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if not module.check_mode:
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newacl.applyto(path)
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changed=True
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res=newacl
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msg="%s. %d entries changed" % (msg,changes)
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module.exit_json(changed=changed, msg=msg, acl=res.to_any_text().split())
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# this is magic, see lib/ansible/module_common.py
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#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
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main()
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