four_chan.rb

require 'cinch'
require 'ostruct'
require 'open-uri'
require 'json'
require 'cgi'
require_relative "config/check_ignore"

module Cinch
  module Plugins
    class FourChan
      include Cinch::Plugin

      set :plugin_name, '4chan'
      set :help, <<-USAGE.gsub(/^ {6}/, '')
      Searches 4chan.
      Usage:
      * !4chan <board> <terms>: This will search 4chan for results matching your request.
      USAGE

      match /4chan (.+?) (.+)/i


      def execute(m, board, query)
        return if check_ignore(m.user)
        data = search(m, board, query)
        return m.reply "No results found on /#{board}/ for \"#{query}\"." if data.empty?
        search_result(m, data)
      end

      def search(m, board, terms)
        chan_logo = "3::54chan:"
        data = JSON.parse(open("https://a.4cdn.org/#{board}/catalog.json").read)
        results = []


        for i in data
          for j in i['threads']
            subject   = j['sub']
            comment   = j['com']
            replies   = j['replies']
            images    = j['images']
            id        = j['no']
            semantic  = j['semantic_url']


            if subject == nil
              subject = "No subject"
            end

            if comment == nil
              comment = "No comment"
            end

            comment_s = CGI.unescape_html(comment).gsub( %r{</?[^>]+?>}, ' ' )
            comment_s = comment_s[0..200] # We need to limit the characters for 4chan comments

            if subject.downcase.include? terms.downcase or comment.downcase.include? terms.downcase
              results.push("%s /#{board}/ %s - %s (R:%s | I:%s) [ https://boards.4chan.org/#{board}/thread/%s/%s ]" % [chan_logo, subject, comment_s, replies, images, id, semantic])
            end
          end
        end
        return results
      end


      def search_result(m, data)
        data[0..2].each{|i| m.reply i}
      end
    end
  end
end

## Written by Richard Banks for Eve-Bot "The Project for a Top-Tier IRC bot.
## E-mail: namaste@rawrnet.net
## Github: Namasteh
## Website: www.rawrnet.net
## IRC: irc.sinsira.net #Eve
## If you like this plugin please consider tipping me on gittip