discourse/app/models/screened_ip_address.rb

50 lines
1.6 KiB
Ruby

require_dependency 'screening_model'
# A ScreenedIpAddress record represents an IP address or subnet that is being watched,
# and possibly blocked from creating accounts.
class ScreenedIpAddress < ActiveRecord::Base
include ScreeningModel
default_action :block
validates :ip_address, ip_address_format: true, presence: true
def self.watch(ip_address, opts={})
match_for_ip_address(ip_address) || create(opts.slice(:action_type).merge(ip_address: ip_address))
end
# In Rails 4.0.0, validators are run to handle invalid assignments to inet columns (as they should).
# In Rails 4.0.1, an exception is raised before validation happens, so we need this hack for
# inet/cidr columns:
def ip_address=(val)
write_attribute(:ip_address, val)
rescue IPAddr::InvalidAddressError
self.errors.add(:ip_address, :invalid)
end
def self.match_for_ip_address(ip_address)
# The <<= operator on inet columns means "is contained within or equal to".
#
# Read more about PostgreSQL's inet data type here:
#
# http://www.postgresql.org/docs/9.1/static/datatype-net-types.html
# http://www.postgresql.org/docs/9.1/static/functions-net.html
where("'#{ip_address.to_s}' <<= ip_address").first
end
def self.should_block?(ip_address)
exists_for_ip_address_and_action?(ip_address, actions[:block])
end
def self.is_whitelisted?(ip_address)
exists_for_ip_address_and_action?(ip_address, actions[:do_nothing])
end
def self.exists_for_ip_address_and_action?(ip_address, action_type)
b = match_for_ip_address(ip_address)
b.record_match! if b
!!b and b.action_type == action_type
end
end