discourse/lib/validators/censored_words_validator.rb

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# frozen_string_literal: true
class CensoredWordsValidator < ActiveModel::EachValidator
def validate_each(record, attribute, value)
words_regexp = censored_words_regexp
if WordWatcher.words_for_action(:censor).present? && !words_regexp.nil?
censored_words = censor_words(value, words_regexp)
return if censored_words.blank?
record.errors.add(
attribute,
:contains_censored_words,
censored_words: join_censored_words(censored_words)
)
end
end
private
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def censor_words(value, regexp)
censored_words = value.scan(regexp)
censored_words.flatten!
censored_words.compact!
censored_words.map!(&:strip)
censored_words.select!(&:present?)
censored_words.uniq!
censored_words
end
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def join_censored_words(censored_words)
censored_words.map!(&:downcase)
censored_words.uniq!
censored_words.join(", ".freeze)
end
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def censored_words_regexp
WordWatcher.word_matcher_regexp :censor
end
end