class IncomingLink < ActiveRecord::Base belongs_to :post belongs_to :user belongs_to :incoming_referer validate :referer_valid validates :post_id, presence: true after_create :update_link_counts attr_accessor :url def self.add(opts) user_id, host, referer = nil current_user = opts[:current_user] username = opts[:username] username = nil unless String === username if username u = User.select(:id).find_by(username_lower: username.downcase) user_id = u.id if u end ip_address = opts[:ip_address] if opts[:referer].present? begin host = URI.parse(opts[:referer]).host referer = opts[:referer][0..999] rescue URI::InvalidURIError # bad uri, skip end end if host != opts[:host] && (user_id || referer) post_id = opts[:post_id] post_id ||= Post.where(topic_id: opts[:topic_id], post_number: opts[:post_number] || 1) .pluck(:id).first cid = current_user ? (current_user.id) : (nil) ip_address = nil if cid unless cid && cid == user_id create(referer: referer, user_id: user_id, post_id: post_id, current_user_id: cid, ip_address: ip_address) if post_id end end end def referer=(referer) self.incoming_referer_id = nil # will set incoming_referer_id unless referer.present? return end parsed = URI.parse(referer) if parsed.scheme == "http" || parsed.scheme == "https" domain = IncomingDomain.add!(parsed) referer_record = IncomingReferer.add!(path: parsed.path, incoming_domain: domain) if domain self.incoming_referer_id = referer_record.id if referer_record end rescue URI::InvalidURIError # ignore end def referer if self.incoming_referer self.incoming_referer.incoming_domain.to_url << self.incoming_referer.path end end def domain if incoming_referer incoming_referer.incoming_domain.name end end # Internal: Update appropriate link counts. def update_link_counts DB.exec("UPDATE topics SET incoming_link_count = incoming_link_count + 1 WHERE id = (SELECT topic_id FROM posts where id = ?)", post_id) DB.exec("UPDATE posts SET incoming_link_count = incoming_link_count + 1 WHERE id = ?", post_id) end protected def referer_valid return true unless referer if (referer.length < 3 || referer.length > 100) || (domain.length < 1 || domain.length > 100) # internal, no need to localize errors.add(:referer, 'referer is invalid') false else true end end end # == Schema Information # # Table name: incoming_links # # id :integer not null, primary key # created_at :datetime not null # user_id :integer # ip_address :inet # current_user_id :integer # post_id :integer not null # incoming_referer_id :integer # # Indexes # # index_incoming_links_on_created_at_and_user_id (created_at,user_id) # index_incoming_links_on_post_id (post_id) #