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mastodon/app/validators/email_validator.rb

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# frozen_string_literal: true
class EmailValidator < ActiveModel::EachValidator
def validate_each(record, attribute, value)
record.errors.add(attribute, I18n.t('users.invalid_email')) if blocked_email?(value)
end
private
def blocked_email?(value)
on_blacklist?(value) || not_on_whitelist?(value)
end
def on_blacklist?(value)
return false if Rails.configuration.x.email_domains_blacklist.blank?
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domains = Rails.configuration.x.email_domains_blacklist.gsub('.', '\.')
regexp = Regexp.new("@(.+\\.)?(#{domains})", true)
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value =~ regexp
end
def not_on_whitelist?(value)
return false if Rails.configuration.x.email_domains_whitelist.blank?
domains = Rails.configuration.x.email_domains_whitelist.gsub('.', '\.')
regexp = Regexp.new("@(.+\\.)?(#{domains})$", true)
value !~ regexp
end
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end