246 lines
6.9 KiB
Python
Executable file
246 lines
6.9 KiB
Python
Executable file
#!/usr/bin/python
|
|
|
|
# (c) 2012, 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/>.
|
|
|
|
try:
|
|
import json
|
|
except ImportError:
|
|
import simplejson as json
|
|
import os
|
|
import sys
|
|
import shlex
|
|
import subprocess
|
|
import shutil
|
|
import stat
|
|
import grp
|
|
import pwd
|
|
|
|
def debug(msg):
|
|
# ansible ignores stderr, so it's safe to use for debug
|
|
# print >>sys.stderr, msg
|
|
pass
|
|
|
|
def exit_json(rc=0, **kwargs):
|
|
# FIXME: if path exists, include the user, group, mode and context
|
|
# in the data if not already present, such that this module is
|
|
# also useful for inventory purposes
|
|
if 'path' in kwargs:
|
|
debug("adding path info")
|
|
add_path_info(kwargs)
|
|
print json.dumps(kwargs)
|
|
sys.exit(rc)
|
|
|
|
def fail_json(**kwargs):
|
|
kwargs['failed'] = True
|
|
exit_json(rc=1, **kwargs)
|
|
|
|
def add_path_info(kwargs):
|
|
path = kwargs['path']
|
|
if os.path.exists(path):
|
|
(user, group) = user_and_group(path)
|
|
kwargs['user'] = user
|
|
kwargs['group'] = group
|
|
st = os.stat(path)
|
|
kwargs['mode'] = stat.S_IMODE(st[stat.ST_MODE])
|
|
# secontext not yet supported
|
|
if os.path.isfile(path):
|
|
kwargs['state'] = 'file'
|
|
else:
|
|
kwargs['state'] = 'directory'
|
|
else:
|
|
kwargs['state'] = 'absent'
|
|
return kwargs
|
|
|
|
# ===========================================
|
|
|
|
argfile = sys.argv[1]
|
|
args = open(argfile, 'r').read()
|
|
items = shlex.split(args)
|
|
|
|
if not len(items):
|
|
fail_json(msg='the module requires arguments -a')
|
|
sys.exit(1)
|
|
|
|
params = {}
|
|
for x in items:
|
|
(k, v) = x.split("=")
|
|
params[k] = v
|
|
|
|
state = params.get('state','file')
|
|
path = params.get('path', params.get('dest', params.get('name', None)))
|
|
mode = params.get('mode', None)
|
|
owner = params.get('owner', None)
|
|
group = params.get('group', None)
|
|
|
|
# presently unused, we always use -R (FIXME?)
|
|
recurse = params.get('recurse', 'false')
|
|
|
|
# presently unused, implement (FIXME)
|
|
secontext = params.get('secontext', None)
|
|
|
|
if state not in [ 'file', 'directory', 'absent' ]:
|
|
fail_json(msg='invalid state')
|
|
if path is None:
|
|
fail_json(msg='path is required')
|
|
|
|
changed = False
|
|
|
|
# ===========================================
|
|
# support functions
|
|
|
|
def md5sum(filename):
|
|
return os.popen("/usr/bin/md5sum %s" % f).read()
|
|
|
|
def user_and_group(filename):
|
|
st = os.stat(filename)
|
|
uid = st.st_uid
|
|
gid = st.st_gid
|
|
user = pwd.getpwuid(uid)[0]
|
|
group = grp.getgrgid(gid)[0]
|
|
debug("got user=%s and group=%s" % (user, group))
|
|
return (user, group)
|
|
|
|
|
|
def set_context_if_different(path, context, changed):
|
|
if context is None:
|
|
return changed
|
|
if context is not None:
|
|
fail_json(path=path, msg='context not yet supported')
|
|
|
|
def set_owner_if_different(path, owner, changed):
|
|
if owner is None:
|
|
debug('not tweaking owner')
|
|
return changed
|
|
user, group = user_and_group(path)
|
|
if owner != user:
|
|
debug('setting owner')
|
|
rc = os.system("/bin/chown -R %s %s" % (owner, path))
|
|
if rc != 0:
|
|
fail_json(path=path, msg='chown failed')
|
|
return True
|
|
|
|
return changed
|
|
|
|
def set_group_if_different(path, group, changed):
|
|
if group is None:
|
|
debug('not tweaking group')
|
|
return changed
|
|
old_user, old_group = user_and_group(path)
|
|
if old_group != group:
|
|
debug('setting group')
|
|
rc = os.system("/bin/chgrp -R %s %s" % (group, path))
|
|
if rc != 0:
|
|
fail_json(path=path, msg='chgrp failed')
|
|
return True
|
|
return changed
|
|
|
|
def set_mode_if_different(path, mode, changed):
|
|
if mode is None:
|
|
debug('not tweaking mode')
|
|
return changed
|
|
try:
|
|
# FIXME: support English modes
|
|
mode = int("0%s" % mode)
|
|
except Exception, e:
|
|
fail_json(path=path, msg='mode needs to be something octalish', details=str(e))
|
|
|
|
st = os.stat(path)
|
|
prev_mode = stat.S_IMODE(st[stat.ST_MODE])
|
|
|
|
if prev_mode != mode:
|
|
# FIXME: comparison against string above will cause this to be executed
|
|
# every time
|
|
try:
|
|
debug('setting mode')
|
|
os.chmod(path, mode)
|
|
except Exception, e:
|
|
fail_json(path=path, msg='chmod failed', details=str(e))
|
|
|
|
st = os.stat(path)
|
|
new_mode = stat.S_IMODE(st[stat.ST_MODE])
|
|
|
|
if new_mode != prev_mode:
|
|
return True
|
|
return changed
|
|
|
|
def rmtree_error(func, path, exc_info):
|
|
fail_json(path=path, msg='failed to remove directory')
|
|
|
|
# ===========================================
|
|
# go...
|
|
|
|
prev_state = 'absent'
|
|
if os.path.exists(path):
|
|
if os.path.isfile(path):
|
|
prev_state = 'file'
|
|
else:
|
|
prev_state = 'directory'
|
|
|
|
if prev_state != 'absent' and state == 'absent':
|
|
debug('requesting absent')
|
|
try:
|
|
if prev_state == 'directory':
|
|
if os.path.islink(path):
|
|
os.unlink(path)
|
|
else:
|
|
shutil.rmtree(path, ignore_errors=False, onerror=rmtree_error)
|
|
else:
|
|
os.unlink(path)
|
|
except Exception, e:
|
|
fail_json(path=path, msg=str(e))
|
|
exit_json(path=path, changed=True)
|
|
sys.exit(0)
|
|
|
|
if prev_state != 'absent' and prev_state != state:
|
|
fail_json(path=path, msg='refusing to convert between file and directory')
|
|
|
|
if prev_state == 'absent' and state == 'absent':
|
|
exit_json(path=path, changed=False)
|
|
|
|
if state == 'file':
|
|
|
|
debug('requesting file')
|
|
if prev_state == 'absent':
|
|
fail_json(path=path, msg='file does not exist, use copy or template module to create')
|
|
|
|
# set modes owners and context as needed
|
|
changed = set_context_if_different(path, secontext, changed)
|
|
changed = set_owner_if_different(path, owner, changed)
|
|
changed = set_group_if_different(path, group, changed)
|
|
changed = set_mode_if_different(path, mode, changed)
|
|
|
|
exit_json(path=path, changed=changed)
|
|
|
|
elif state == 'directory':
|
|
|
|
debug('requesting directory')
|
|
if prev_state == 'absent':
|
|
os.makedirs(path)
|
|
changed = True
|
|
|
|
# set modes owners and context as needed
|
|
changed = set_context_if_different(path, secontext, changed)
|
|
changed = set_owner_if_different(path, owner, changed)
|
|
changed = set_group_if_different(path, owner, changed)
|
|
changed = set_mode_if_different(path, owner, changed)
|
|
|
|
exit_json(path=path, changed=changed)
|
|
|
|
fail_json(path=path, msg='unexpected position reached')
|
|
sys.exit(0)
|
|
|