""" Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. SPDX-License-Identifier: MIT-0 """ from cfnlint.rules import CloudFormationLintRule, RuleMatch class If(CloudFormationLintRule): """Check if Condition exists""" id = "E1028" shortdesc = "Check Fn::If structure for validity" description = "Check Fn::If to make sure its valid. Condition has to be a string." source_url = "https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/intrinsic-function-reference-conditions.html#intrinsic-function-reference-conditions-if" tags = ["functions", "if"] def match(self, cfn): matches = [] # Build the list of functions iftrees = cfn.search_deep_keys("Fn::If") # Get the conditions used in the functions for iftree in iftrees: ifs = iftree[-1] if isinstance(ifs, list): if_condition = ifs[0] if len(ifs) != 3: message = "Fn::If must be a list of 3 elements." matches.append(RuleMatch(iftree[:-1], message)) if not isinstance(if_condition, str): message = "Fn::If first element must be a condition and a string." matches.append(RuleMatch(iftree[:-1] + [0], message)) else: message = "Fn::If must be a list of 3 elements." matches.append(RuleMatch(iftree[:-1], message)) return matches
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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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