Class: RuboCop::Cop::FormulaAudit::Checksum

Inherits:
RuboCop::Cop::FormulaCop show all
Defined in:
Library/Homebrew/rubocops/checksum_cop.rb

Instance Attribute Summary

Attributes inherited from RuboCop::Cop::FormulaCop

#file_path

Instance Method Summary collapse

Methods inherited from RuboCop::Cop::FormulaCop

#audit_comments, #audit_urls, #block_size, #caveats_strings, #check_precedence, #class_name, #component_precedes?, #depends_on?, #depends_on_name_type?, #end_column, #expression_negated?, #find_all_blocks, #find_block, #find_blocks, #find_const, #find_every_method_call_by_name, #find_instance_call, #find_instance_method_call, #find_method_calls_by_name, #find_method_def, #find_method_with_args, #find_node_method_by_name, #find_strings, #format_component, #formula_tap, #get_checksum_node, #line_number, #line_start_column, #method_called?, #method_called_ever?, #method_called_in_block?, #method_name, #node_equals?, #offending_node, #on_class, #parameters, #parameters_passed?, #problem, #regex_match_group, #size, #source_buffer, #start_column, #string_content, #versioned_formula?

Instance Method Details

#audit_formula(_node, _class_node, _parent_class_node, body_node) ⇒ Object



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# File 'Library/Homebrew/rubocops/checksum_cop.rb', line 7

def audit_formula(_node, _class_node, _parent_class_node, body_node)
  return if body_node.nil?
  if method_called_ever?(body_node, :md5)
    problem "MD5 checksums are deprecated, please use SHA256"
  end

  if method_called_ever?(body_node, :sha1)
    problem "SHA1 checksums are deprecated, please use SHA256"
  end

  sha256_calls = find_every_method_call_by_name(body_node, :sha256)
  sha256_calls.each do |sha256_call|
    sha256_node = get_checksum_node(sha256_call)
    audit_sha256(sha256_node)
  end
end

#audit_sha256(checksum) ⇒ Object



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# File 'Library/Homebrew/rubocops/checksum_cop.rb', line 24

def audit_sha256(checksum)
  return if checksum.nil?
  if regex_match_group(checksum, /^$/)
    @offense_source_range = @offensive_node.source_range
    problem "sha256 is empty"
    return
  end

  if string_content(checksum).size != 64 && regex_match_group(checksum, /^\w*$/)
    problem "sha256 should be 64 characters"
  end

  return unless regex_match_group(checksum, /[^a-f0-9]+/i)
  problem "sha256 contains invalid characters"
end