class EmailValidator < ActiveModel::EachValidator def validate_each(record, attribute, value) unless EmailValidator.allowed?(value) record.errors.add(attribute, I18n.t(:'user.email.not_allowed')) end if record.errors[attribute].blank? && value && ScreenedEmail.should_block?(value) record.errors.add(attribute, I18n.t(:'user.email.blocked')) end end def self.allowed?(email) if (setting = SiteSetting.email_domains_whitelist).present? return email_in_restriction_setting?(setting, email) || is_developer?(email) elsif (setting = SiteSetting.email_domains_blacklist).present? return !(email_in_restriction_setting?(setting, email) && !is_developer?(email)) end true end def self.email_in_restriction_setting?(setting, value) domains = setting.gsub('.', '\.') regexp = Regexp.new("@(.+\\.)?(#{domains})", true) value =~ regexp end def self.is_developer?(value) Rails.configuration.respond_to?(:developer_emails) && Rails.configuration.developer_emails.include?(value) end def self.email_regex /\A[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])?$\z/ end end