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require 'uri'
Net::HTTP.version_1_2
GOOGLE_WAP_LINK = /<a accesskey="(\d)" href=".*?u=(.*?)">(.*?)<\/a>/im
GOOGLE_CALC_RESULT = %r{<p><table><tr><td><img src=/images/calc_img\.gif></td><td> </td><td nowrap><font size=\+1><b>(.+)</b></td></tr><tr><td>}
class SearchPlugin < Plugin
def help(plugin, topic="")
case topic
when "search"
"search <string> => search google for <string>"
when "google"
"google <string> => search google for <string>"
when "gcalc"
"gcalc <equation> => use the google calculator to find the answer to <equation>"
when "wp"
"wp [<code>] <string> => search for <string> on Wikipedia. You can select a national <code> to only search the national Wikipedia"
else
"search <string> (or: google <string>) => search google for <string> | wp <string> => search for <string> on Wikipedia | gcalc <equation> => use google calculator to calculate <equation>"
end
end
def google(m, params)
what = params[:words].to_s
searchfor = URI.escape what
# This method is also called by other methods to restrict searching to some sites
if params[:site]
site = "site:#{params[:site]}+"
else
site = ""
end
# It is also possible to choose a filter to remove constant parts from the titles
# e.g.: "Wikipedia, the free encyclopedia" when doing Wikipedia searches
filter = params[:filter] || ""
url = "http://www.google.com/wml/search?q=#{site}#{searchfor}"
begin
wml = @bot.httputil.get_cached(url)
rescue => e
m.reply "error googling for #{what}"
return
end
results = wml.scan(GOOGLE_WAP_LINK)
if results.length == 0
m.reply "no results found for #{what}"
return
end
results = results[0...3].map { |res|
n = res[0]
t = Utils.decode_html_entities res[2].gsub(filter, '').strip
u = URI.unescape res[1]
"#{n}. #{Bold}#{t}#{Bold}: #{u}"
}.join(" | ")
m.reply "Results for #{what}: #{results}"
end
def gcalc(m, params)
what = params[:words].to_s
searchfor = URI.escape(what).sub('+','%2B')
puts "Getting gcalc thing: #{searchfor.inspect}"
url = "http://www.google.com/search?q=#{searchfor}"
begin
html = @bot.httputil.get_cached(url)
rescue => e
m.reply "error googlecalcing #{what}"
return
end
puts "#{html.size} bytes of html recieved"
results = html.scan(GOOGLE_CALC_RESULT)
puts "results: #{results.inspect}"
if results.length != 1
m.reply "couldn't calculate #{what}"
#puts html
return
end
result = results[0][0]
result.gsub!("<font size=-2> </font>", ",")
puts "replying with: #{result.inspect}"
m.reply "#{result}"
end
def wikipedia(m, params)
lang = params[:lang]
site = "#{lang.nil? ? '' : lang + '.'}wikipedia.org"
params[:site] = site
params[:filter] = / - Wikipedia.*$/
return google(m, params)
end
end
plugin = SearchPlugin.new
plugin.map "search *words", :action => 'google'
plugin.map "google *words", :action => 'google'
plugin.map "gcalc *words", :action => 'gcalc'
plugin.map "wp :lang *words", :action => 'wikipedia', :requirements => { :lang => /^\w\w\w?$/ }
plugin.map "wp *words", :action => 'wikipedia'
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