discourse/app/models/screened_ip_address.rb

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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, presence: true, uniqueness: true
def self.watch(ip_address, opts={})
match_for_ip_address(ip_address) || create(opts.slice(:action_type).merge(ip_address: ip_address))
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', ip_address).first
end
def self.should_block?(ip_address)
b = match_for_ip_address(ip_address)
b.record_match! if b
!!b and b.action_type == actions[:block]
end
end