""" Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. SPDX-License-Identifier: MIT-0 """ import regex as re from cfnlint.rules import CloudFormationLintRule, RuleMatch class RefExist(CloudFormationLintRule): id = "E1012" shortdesc = "Check if Refs exist" description = "Making sure the refs exist" source_url = "https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/intrinsic-function-reference-ref.html" tags = ["functions", "ref"] def searchstring(self, string): """Search string for tokenized fields""" regex = re.compile(r"\${([a-zA-Z0-9]*)}") return regex.findall(string) def match(self, cfn): matches = [] # Build the list of refs reftrees = cfn.search_deep_keys("Ref") refs = [] for reftree in reftrees: refs.append(reftree[-1]) valid_refs = cfn.get_valid_refs() # start with the basic ref calls for reftree in reftrees: ref = reftree[-1] if isinstance(ref, (str, int)): if ref not in valid_refs: message = "Ref {0} not found as a resource or parameter" matches.append(RuleMatch(reftree[:-2], message.format(ref))) return matches
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__pycache__ | Folder | 0755 |
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Base64.py | File | 1.72 KB | 0644 |
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Cidr.py | File | 11.94 KB | 0644 |
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DynamicReferenceSecureString.py | File | 5.72 KB | 0644 |
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FindInMap.py | File | 11.25 KB | 0644 |
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FindInMapKeys.py | File | 3.89 KB | 0644 |
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GetAtt.py | File | 6.05 KB | 0644 |
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GetAz.py | File | 2.76 KB | 0644 |
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If.py | File | 1.45 KB | 0644 |
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ImportValue.py | File | 2.45 KB | 0644 |
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Join.py | File | 8.63 KB | 0644 |
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Length.py | File | 3.31 KB | 0644 |
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Not.py | File | 978 B | 0644 |
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Ref.py | File | 1.02 KB | 0644 |
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RefExist.py | File | 1.26 KB | 0644 |
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RefInCondition.py | File | 1.36 KB | 0644 |
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RelationshipConditions.py | File | 5.35 KB | 0644 |
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Select.py | File | 4.41 KB | 0644 |
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Split.py | File | 3.11 KB | 0644 |
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Sub.py | File | 9.49 KB | 0644 |
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SubNeeded.py | File | 5.48 KB | 0644 |
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SubNotJoin.py | File | 2 KB | 0644 |
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SubParametersUsed.py | File | 1.4 KB | 0644 |
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SubUnneeded.py | File | 1.27 KB | 0644 |
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ToJsonString.py | File | 1.75 KB | 0644 |
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__init__.py | File | 106 B | 0644 |
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