71 lines
2.2 KiB
Ruby
71 lines
2.2 KiB
Ruby
# typed: true
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# frozen_string_literal: true
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require "rubocops/extend/formula_cop"
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module RuboCop
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module Cop
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module FormulaAudit
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# This cop makes sure that deprecated checksums are not used.
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#
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# @api private
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class Checksum < FormulaCop
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def audit_formula(_node, _class_node, _parent_class_node, body_node)
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return if body_node.nil?
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problem "MD5 checksums are deprecated, please use SHA-256" if method_called_ever?(body_node, :md5)
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problem "SHA1 checksums are deprecated, please use SHA-256" if method_called_ever?(body_node, :sha1)
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sha256_calls = find_every_method_call_by_name(body_node, :sha256)
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sha256_calls.each do |sha256_call|
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sha256_node = get_checksum_node(sha256_call)
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audit_sha256(sha256_node)
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end
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end
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def audit_sha256(checksum)
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return if checksum.nil?
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if regex_match_group(checksum, /^$/)
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problem "sha256 is empty"
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return
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end
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if string_content(checksum).size != 64 && regex_match_group(checksum, /^\w*$/)
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problem "sha256 should be 64 characters"
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end
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return unless regex_match_group(checksum, /[^a-f0-9]+/i)
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add_offense(@offensive_source_range, message: "sha256 contains invalid characters")
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end
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end
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# This cop makes sure that checksum strings are lowercase.
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#
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# @api private
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class ChecksumCase < FormulaCop
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extend AutoCorrector
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def audit_formula(_node, _class_node, _parent_class_node, body_node)
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return if body_node.nil?
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sha256_calls = find_every_method_call_by_name(body_node, :sha256)
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sha256_calls.each do |sha256_call|
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checksum = get_checksum_node(sha256_call)
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next if checksum.nil?
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next unless regex_match_group(checksum, /[A-F]+/)
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add_offense(@offensive_source_range, message: "sha256 should be lowercase") do |corrector|
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correction = @offensive_node.source.downcase
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corrector.insert_before(@offensive_node.source_range, correction)
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corrector.remove(@offensive_node.source_range)
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end
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end
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end
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end
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end
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end
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end
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