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110 lines
2.8 KiB
Ruby
110 lines
2.8 KiB
Ruby
class IncomingLink < ActiveRecord::Base
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belongs_to :topic
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belongs_to :user
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validate :referer_valid
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validate :post_id, presence: true
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before_validation :extract_domain
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after_create :update_link_counts
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attr_accessor :url
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def self.add(opts)
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user_id, host, referer = nil
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current_user = opts[:current_user]
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if username = opts[:username]
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u = User.select(:id).find_by(username_lower: username.downcase)
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user_id = u.id if u
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end
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if opts[:referer].present?
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begin
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host = URI.parse(opts[:referer]).host
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referer = opts[:referer][0..999]
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rescue URI::InvalidURIError
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# bad uri, skip
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end
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end
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if host != opts[:host] && (user_id || referer)
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post_id = opts[:post_id]
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post_id ||= Post.where(topic_id: opts[:topic_id],
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post_number: opts[:post_number] || 1)
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.pluck(:id).first
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cid = current_user ? (current_user.id) : (nil)
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unless cid && cid == user_id
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IncomingLink.create(referer: referer,
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user_id: user_id,
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post_id: post_id,
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current_user_id: cid,
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ip_address: opts[:ip_address]) if post_id
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end
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end
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end
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# Internal: Extract the domain from link.
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def extract_domain
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if referer.present?
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# We may get a junk URI, just deal with it
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self.domain = URI.parse(self.referer).host rescue nil
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self.referer = nil unless self.domain
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end
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end
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# Internal: Update appropriate link counts.
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def update_link_counts
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exec_sql("UPDATE topics
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SET incoming_link_count = incoming_link_count + 1
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WHERE id = (SELECT topic_id FROM posts where id = ?)", post_id)
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exec_sql("UPDATE posts
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SET incoming_link_count = incoming_link_count + 1
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WHERE id = ?", post_id)
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end
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protected
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def referer_valid
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return true unless referer
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if (referer.length < 3 || referer.length > 100) || (domain.length < 1 || domain.length > 100)
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# internal, no need to localize
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errors.add(:referer, 'referer is invalid')
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false
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else
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true
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end
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end
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end
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# == Schema Information
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#
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# Table name: incoming_links
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#
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# id :integer not null, primary key
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# url :string(1000) not null
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# referer :string(1000)
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# domain :string(100)
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# topic_id :integer
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# post_number :integer
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# created_at :datetime
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# updated_at :datetime
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# user_id :integer
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# ip_address :inet
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# current_user_id :integer
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#
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# Indexes
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#
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# incoming_index (topic_id,post_number)
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# index_incoming_links_on_created_at_and_domain (created_at,domain)
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# index_incoming_links_on_created_at_and_user_id (created_at,user_id)
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#
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