discourse/app/models/topic_link_click.rb

75 lines
2.2 KiB
Ruby

require_dependency 'discourse'
require 'ipaddr'
class TopicLinkClick < ActiveRecord::Base
belongs_to :topic_link, counter_cache: :clicks
belongs_to :user
validates_presence_of :topic_link_id
validates_presence_of :ip_address
# Create a click from a URL and post_id
def self.create_from(args={})
# If the URL is absolute, allow HTTPS and HTTP versions of it
if args[:url] =~ /^http/
http_url = args[:url].sub(/^https/, 'http')
https_url = args[:url].sub(/^http\:/, 'https:')
link = TopicLink.select([:id, :user_id]).where('url = ? OR url = ?', http_url, https_url)
else
link = TopicLink.select([:id, :user_id]).where(url: args[:url])
end
# Find the forum topic link
link = link.where(post_id: args[:post_id]) if args[:post_id].present?
# If we don't have a post, just find the first occurance of the link
link = link.where(topic_id: args[:topic_id]) if args[:topic_id].present?
link = link.first
# If no link is found, return the url for relative links
unless link.present?
return args[:url] if args[:url] =~ /^\//
begin
uri = URI.parse(args[:url])
return args[:url] if uri.host == URI.parse(Discourse.base_url).host
rescue
end
# If we have it somewhere else on the site, just allow the redirect. This is
# likely due to a onebox of another topic.
link = TopicLink.find_by(url: args[:url])
return link.present? ? link.url : nil
end
return args[:url] if (args[:user_id] && (link.user_id == args[:user_id]))
# Rate limit the click counts to once in 24 hours
rate_key = "link-clicks:#{link.id}:#{args[:user_id] || args[:ip]}"
if $redis.setnx(rate_key, "1")
$redis.expire(rate_key, 1.day.to_i)
create!(topic_link_id: link.id, user_id: args[:user_id], ip_address: args[:ip])
end
args[:url]
end
end
# == Schema Information
#
# Table name: topic_link_clicks
#
# id :integer not null, primary key
# topic_link_id :integer not null
# user_id :integer
# created_at :datetime not null
# updated_at :datetime not null
# ip_address :inet not null
#
# Indexes
#
# by_link (topic_link_id)
#