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mastodon/app/validators/status_length_validator.rb

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# frozen_string_literal: true
class StatusLengthValidator < ActiveModel::Validator
MAX_CHARS = (ENV['MAX_TOOT_CHARS'] || 500).to_i
def validate(status)
return unless status.local? && !status.reblog?
@status = status
status.errors.add(:text, I18n.t('statuses.over_character_limit', max: MAX_CHARS)) if too_long?
end
private
def too_long?
countable_length > MAX_CHARS
end
def countable_length
total_text.mb_chars.grapheme_length
end
def total_text
[@status.spoiler_text, countable_text].join
end
def countable_text
return '' if @status.text.nil?
@status.text.dup.tap do |new_text|
new_text.gsub!(FetchLinkCardService::URL_PATTERN, 'x' * 23)
new_text.gsub!(Account::MENTION_RE, '@\2')
end
end
end