/usr/lib/python3/dist-packages/muranopkgcheck/checkers/code_structure.py is in python3-murano-pkg-check 0.3.0-0ubuntu4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 | # Copyright (c) 2016 Mirantis, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import re
import six
from muranopkgcheck.checkers import yaql_checker
from muranopkgcheck import error
ASSIGMENT_KEY = re.compile('^\$.?[\w]')
def check_req(check, required=True):
return locals()
error.register.E203(description='Value should be string type')
error.register.E200(description='No value should be here')
error.register.E204(description='Wrong code structure/assigment')
error.register.E202(description='Not a valid yaql expression')
error.register.W202(description='Not a valid yaql expression')
error.register.E201(description='Not a valid variable name')
CODE_STRUCTURE = {
'Try': {
'keywords': {
'Try': check_req('codeblock'),
'Catch': check_req('catchblock'),
'Else': check_req('codeblock', False),
'Finally': check_req('codeblock', False)}},
'Parallel': {
'keywords': {
'Limit': check_req('codeblock', False),
'Parallel': check_req('codeblock')},
},
'Repeat': {
'keywords': {
'Repeat': check_req('number'),
'Do': check_req('codeblock')}},
'If': {
'keywords': {
'If': check_req('predicate'),
'Then': check_req('codeblock'),
'Else': check_req('codeblock', False)}
},
'Break': {
'keywords': {
'Break': check_req('empty')}
},
'Return': {
'Return': check_req('expression'),
},
'While': {
'keywords': {
'While': check_req('predicate'),
'Do': check_req('codeblock')}
},
'For': {
'keywords': {
'For': check_req('string'),
'In': check_req('expression'),
'Do': check_req('codeblock')}
},
'Match': {
'keywords': {
'Match': check_req(('expression', 'codeblock')),
'Value': check_req('expression'),
'Default': check_req('codeblock', False),
}
},
'Switch': {
'keywords': {
'Switch': check_req(('predicate', 'codeblock')),
'Default': check_req('codeblock')}
},
'Throw': {
'keywords': {
'Throw': check_req('string'),
'Message': check_req('string')}
},
'Continue': {
'keywords': {
'Continue': check_req('empty'),
}
},
'Rethrow': {
'keywords': {
'Rethrow': check_req('empty'),
}
},
}
class CheckCodeStructure(object):
def __init__(self):
self._check_mappings = {
'codeblock': self.codeblock,
'catchblock': self.catchblock,
'predicate': self.yaql,
'empty': self.empty,
'expression': self.yaql,
'string': self.string,
'number': self.yaql,
}
self._yaql_checker = yaql_checker.YaqlChecker()
def string(self, value):
if not isinstance(value, six.string_types):
yield error.report.E203('Value of "{0}" should be a string'
''.format(value), value)
def empty(self, value):
if value:
yield error.report.E200('Statement should be empty, not a '
'"{0}"'.format(value), value)
def yaql(self, value):
if not self._yaql_checker(value):
if isinstance(value, bool):
return
yield error.report.W202('"{0}" is not valid yaql expression'
''.format(value), value)
def catchblock(self, catchblock):
if isinstance(catchblock, list):
for block in catchblock:
yield self._single_catchblock(block)
else:
yield self._single_catchblock(catchblock)
def _single_catchblock(self, catchblock):
do = catchblock.get('Do')
if not do:
yield error.report.E204('Catch is missing "Do" block', catchblock)
else:
yield self.codeblock(do)
yield self.string(catchblock.get('With', ''))
yield self.string(catchblock.get('As', ''))
def codeblock(self, codeblocks):
if isinstance(codeblocks, list):
for block in codeblocks:
yield self._single_block(block)
else:
yield self._single_block(codeblocks)
def _check_assigment(self, block):
key = next(iter(block))
if not isinstance(key, six.string_types) or\
not ASSIGMENT_KEY.match(key):
yield error.report.E201('"{0}" is not valid variable name'
''.format(key), key)
def _single_block(self, block):
if isinstance(block, dict):
yield self._check_structure(block)
elif isinstance(block, six.string_types):
yield self.yaql(block)
def _run_check(self, check, value):
yield self._check_mappings[check](value)
def _check_structure(self, block):
for key, value in CODE_STRUCTURE.items():
if key in block:
break
else:
if len(block.keys()) == 1:
yield self._check_assigment(block)
else:
yield error.report.E204('Wrong code structure/assigment. '
'Probably a typo', block)
return
keywords = value.get('keywords', {})
kset = set(keywords.keys())
block_keys_set = set(block.keys())
for missing in (kset - block_keys_set):
if keywords[missing]['required']:
yield error.report.E204('Missing keyword "{0}" for "{1}" '
'code structure'
.format(missing, key), block)
for unknown in (block_keys_set - kset - {key}):
yield error.report.E201('Unknown keyword "{0}" in "{1}"'
.format(unknown, key), unknown)
for ckey, cvalue in keywords.items():
check = cvalue['check']
data = block.get(ckey)
if not data:
continue
if isinstance(check, tuple):
for left, right in data.items():
yield self._run_check(check[0], left)
yield self._run_check(check[1], right)
else:
yield self._run_check(check, data)
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