class EmailValidator < ActiveModel::EachValidator def validate_each(record, attribute, value) if (setting = SiteSetting.email_domains_whitelist).present? unless email_in_restriction_setting?(setting, value) record.errors.add(attribute, I18n.t(:'user.email.not_allowed')) end elsif (setting = SiteSetting.email_domains_blacklist).present? if email_in_restriction_setting?(setting, value) record.errors.add(attribute, I18n.t(:'user.email.not_allowed')) end end if record.errors[attribute].blank? and ScreenedEmail.should_block?(value) record.errors.add(attribute, I18n.t(:'user.email.blocked')) end end def email_in_restriction_setting?(setting, value) domains = setting.gsub('.', '\.') regexp = Regexp.new("@(#{domains})", true) value =~ regexp end def self.email_regex /^[a-zA-Z0-9!#\$%&'*+\/=?\^_`{|}~\-]+(?:\.[a-zA-Z0-9!#\$%&'\*+\/=?\^_`{|}~\-]+)*@(?:[a-zA-Z0-9](?:[a-zA-Z0-9\-]*[a-zA-Z0-9])?\.)+[a-zA-Z0-9](?:[a-zA-Z0-9\-]*[a-zA-Z0-9])?$/ end end