discourse/lib/validators/ip_address_format_validator.rb

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# frozen_string_literal: true
# Allows unique IP address (10.0.1.20), and IP addresses with a mask (10.0.0.0/8).
# Useful when storing in a Postgresql inet column.
class IpAddressFormatValidator < ActiveModel::EachValidator
def validate_each(record, attribute, value)
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# In Rails 4.0.0, ip_address will be nil if an invalid IP address was assigned.
# https://github.com/jetthoughts/rails/commit/0aa95a71b04f2893921c58a7c1d9fca60dbdcbc2
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# BUT: in Rails 4.0.1, validators don't get a chance to
# run before IPAddr::InvalidAddressError is raised.
# I don't see what broke it in rails 4.0.1...
# So this validator doesn't actually do anything anymore.
# But let's keep it in case a future version of rails fixes the problem and allows
# validators to work on inet and cidr columns.
record.errors.add(attribute, :invalid) if record.ip_address.nil?
end
end