Current File : //usr/lib/python2.7/site-packages/salt/matchers/compound_match.py
# -*- coding: utf-8 -*-
'''
This is the default compound matcher function.
'''
from __future__ import absolute_import, print_function, unicode_literals
import logging
from salt.ext import six # pylint: disable=3rd-party-module-not-gated
import salt.loader
import salt.utils.minions # pylint: disable=3rd-party-module-not-gated
HAS_RANGE = False
try:
import seco.range # pylint: disable=unused-import
HAS_RANGE = True
except ImportError:
pass
log = logging.getLogger(__name__)
def match(tgt, opts=None):
'''
Runs the compound target check
'''
if not opts:
opts = __opts__
nodegroups = opts.get('nodegroups', {})
matchers = salt.loader.matchers(opts)
minion_id = opts.get('minion_id', opts['id'])
if not isinstance(tgt, six.string_types) and not isinstance(tgt, (list, tuple)):
log.error('Compound target received that is neither string, list nor tuple')
return False
log.debug('compound_match: %s ? %s', minion_id, tgt)
ref = {'G': 'grain',
'P': 'grain_pcre',
'I': 'pillar',
'J': 'pillar_pcre',
'L': 'list',
'N': None, # Nodegroups should already be expanded
'S': 'ipcidr',
'E': 'pcre'}
if HAS_RANGE:
ref['R'] = 'range'
results = []
opers = ['and', 'or', 'not', '(', ')']
if isinstance(tgt, six.string_types):
words = tgt.split()
else:
# we make a shallow copy in order to not affect the passed in arg
words = tgt[:]
while words:
word = words.pop(0)
target_info = salt.utils.minions.parse_target(word)
# Easy check first
if word in opers:
if results:
if results[-1] == '(' and word in ('and', 'or'):
log.error('Invalid beginning operator after "(": %s', word)
return False
if word == 'not':
if not results[-1] in ('and', 'or', '('):
results.append('and')
results.append(word)
else:
# seq start with binary oper, fail
if word not in ['(', 'not']:
log.error('Invalid beginning operator: %s', word)
return False
results.append(word)
elif target_info and target_info['engine']:
if 'N' == target_info['engine']:
# if we encounter a node group, just evaluate it in-place
decomposed = salt.utils.minions.nodegroup_comp(target_info['pattern'], nodegroups)
if decomposed:
words = decomposed + words
continue
engine = ref.get(target_info['engine'])
if not engine:
# If an unknown engine is called at any time, fail out
log.error(
'Unrecognized target engine "%s" for target '
'expression "%s"', target_info['engine'], word
)
return False
engine_args = [target_info['pattern']]
engine_kwargs = {'opts': opts}
if target_info['delimiter']:
engine_kwargs['delimiter'] = target_info['delimiter']
results.append(
six.text_type(matchers['{0}_match.match'.format(engine)](*engine_args, **engine_kwargs))
)
else:
# The match is not explicitly defined, evaluate it as a glob
results.append(six.text_type(matchers['glob_match.match'](word, opts)))
results = ' '.join(results)
log.debug('compound_match %s ? "%s" => "%s"', minion_id, tgt, results)
try:
return eval(results) # pylint: disable=W0123
except Exception:
log.error(
'Invalid compound target: %s for results: %s', tgt, results)
return False
return False
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