discourse/lib/validators/email_validator.rb

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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