demarches-normaliennes/app/validators/expression_reguliere_validator.rb

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class ExpressionReguliereValidator < ActiveModel::Validator
TIMEOUT = 1.second.freeze
def validate(record)
expression_reguliere = options[:expression_reguliere] || record.expression_reguliere
expression_reguliere_error_message = options[:expression_reguliere_error_message] || record.expression_reguliere_error_message
if record.value.present?
if !record.value.match?(Regexp.new(expression_reguliere, timeout: TIMEOUT))
record.errors.add(:value, :invalid_regexp, expression_reguliere_error_message: expression_reguliere_error_message)
end
end
rescue Regexp::TimeoutError
record.errors.add(:expression_reguliere, :evil_regexp)
end
end