Current File : //lib/python2.7/site-packages/salt/utils/sdb.py
# -*- coding: utf-8 -*-
'''
Basic functions for accessing the SDB interface
For configuration options, see the docs for specific sdb
modules.
'''
from __future__ import absolute_import, print_function, unicode_literals
# Import python libs
import random
# Import salt libs
import salt.loader
from salt.ext.six import string_types
from salt.ext.six.moves import range
def sdb_get(uri, opts, utils=None):
'''
Get a value from a db, using a uri in the form of ``sdb://<profile>/<key>``. If
the uri provided does not start with ``sdb://``, then it will be returned as-is.
'''
if not isinstance(uri, string_types) or not uri.startswith('sdb://'):
return uri
if utils is None:
utils = salt.loader.utils(opts)
sdlen = len('sdb://')
indx = uri.find('/', sdlen)
if (indx == -1) or len(uri[(indx+1):]) == 0:
return uri
profile = opts.get(uri[sdlen:indx], {})
if not profile:
profile = opts.get('pillar', {}).get(uri[sdlen:indx], {})
if 'driver' not in profile:
return uri
fun = '{0}.get'.format(profile['driver'])
query = uri[indx+1:]
loaded_db = salt.loader.sdb(opts, fun, utils=utils)
return loaded_db[fun](query, profile=profile)
def sdb_set(uri, value, opts, utils=None):
'''
Set a value in a db, using a uri in the form of ``sdb://<profile>/<key>``.
If the uri provided does not start with ``sdb://`` or the value is not
successfully set, return ``False``.
'''
if not isinstance(uri, string_types) or not uri.startswith('sdb://'):
return False
if utils is None:
utils = salt.loader.utils(opts)
sdlen = len('sdb://')
indx = uri.find('/', sdlen)
if (indx == -1) or len(uri[(indx+1):]) == 0:
return False
profile = opts.get(uri[sdlen:indx], {})
if not profile:
profile = opts.get('pillar', {}).get(uri[sdlen:indx], {})
if 'driver' not in profile:
return False
fun = '{0}.set'.format(profile['driver'])
query = uri[indx+1:]
loaded_db = salt.loader.sdb(opts, fun, utils=utils)
return loaded_db[fun](query, value, profile=profile)
def sdb_delete(uri, opts, utils=None):
'''
Delete a value from a db, using a uri in the form of ``sdb://<profile>/<key>``. If
the uri provided does not start with ``sdb://`` or the value is not successfully
deleted, return ``False``.
'''
if not isinstance(uri, string_types) or not uri.startswith('sdb://'):
return False
if utils is None:
utils = salt.loader.utils(opts)
sdlen = len('sdb://')
indx = uri.find('/', sdlen)
if (indx == -1) or len(uri[(indx+1):]) == 0:
return False
profile = opts.get(uri[sdlen:indx], {})
if not profile:
profile = opts.get('pillar', {}).get(uri[sdlen:indx], {})
if 'driver' not in profile:
return False
fun = '{0}.delete'.format(profile['driver'])
query = uri[indx+1:]
loaded_db = salt.loader.sdb(opts, fun, utils=utils)
return loaded_db[fun](query, profile=profile)
def sdb_get_or_set_hash(uri,
opts,
length=8,
chars='abcdefghijklmnopqrstuvwxyz0123456789!@#$%^&*(-_=+)',
utils=None):
'''
Check if value exists in sdb. If it does, return, otherwise generate a
random string and store it. This can be used for storing secrets in a
centralized place.
'''
if not isinstance(uri, string_types) or not uri.startswith('sdb://'):
return False
if utils is None:
utils = salt.loader.utils(opts)
ret = sdb_get(uri, opts, utils=utils)
if ret is None:
val = ''.join([random.SystemRandom().choice(chars) for _ in range(length)])
sdb_set(uri, val, opts, utils)
return ret or val
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