4 # :title: Google and Wikipedia search plugin for rbot
6 # Author:: Tom Gilbert (giblet) <tom@linuxbrit.co.uk>
7 # Author:: Giuseppe "Oblomov" Bilotta <giuseppe.bilotta@gmail.com>
9 # Copyright:: (C) 2002-2005 Tom Gilbert
10 # Copyright:: (C) 2006 Tom Gilbert, Giuseppe Bilotta
11 # Copyright:: (C) 2006-2007 Giuseppe Bilotta
13 # TODO:: use lr=lang_<code> or whatever is most appropriate to let google know
14 # it shouldn't use the bot's location to find the preferred language
15 # TODO:: support localized uncyclopedias -- not easy because they have different names
18 GOOGLE_SEARCH = "http://www.google.com/search?oe=UTF-8&q="
19 GOOGLE_WAP_SEARCH = "http://www.google.com/m/search?hl=en&q="
20 # GOOGLE_WAP_LINK = /<a accesskey="(\d)" href=".*?u=(.*?)">(.*?)<\/a>/im
21 GOOGLE_WAP_LINK = /<a href="(?:.*?u=(.*?)|(http:\/\/.*?))">(.*?)<\/a>/im
22 GOOGLE_CALC_RESULT = %r{<img src=/images/calc_img\.gif(?: width=40 height=30 alt="")?>.*?<h2 class=r[^>]*><b>(.+?)</b>}
23 GOOGLE_COUNT_RESULT = %r{<font size=-1>Results <b>1<\/b> - <b>10<\/b> of about <b>(.*)<\/b> for}
24 GOOGLE_DEF_RESULT = %r{<a href="([^"]*)"[^>]*>(Web definitions for .*?)<br/>(.*?)<br/>(.*?)\s-\s+<a href}
25 GOOGLE_TIME_RESULT = %r{alt="Clock"></td><td valign=[^>]+>(.+?)<(br|/td)>}
27 class SearchPlugin < Plugin
28 Config.register Config::IntegerValue.new('google.hits',
30 :desc => "Number of hits to return from Google searches")
31 Config.register Config::IntegerValue.new('google.first_par',
33 :desc => "When set to n > 0, the bot will return the first paragraph from the first n search hits")
34 Config.register Config::IntegerValue.new('wikipedia.hits',
36 :desc => "Number of hits to return from Wikipedia searches")
37 Config.register Config::IntegerValue.new('wikipedia.first_par',
39 :desc => "When set to n > 0, the bot will return the first paragraph from the first n wikipedia search hits")
41 def help(plugin, topic="")
43 when "search", "google"
44 "#{topic} <string> => search google for <string>"
46 "gcalc <equation> => use the google calculator to find the answer to <equation>"
48 "gdef <term(s)> => use the google define mechanism to find a definition of <term(s)>"
50 "gtime <location> => use the google clock to find the current time at <location>"
52 "wp [<code>] <string> => search for <string> on Wikipedia. You can select a national <code> to only search the national Wikipedia"
54 "unpedia <string> => search for <string> on Uncyclopedia"
56 "search <string> (or: google <string>) => search google for <string> | wp <string> => search for <string> on Wikipedia | unpedia <string> => search for <string> on Uncyclopedia"
61 what = params[:words].to_s
62 if what.match(/^define:/)
63 return google_define(m, what, params)
66 searchfor = CGI.escape what
67 # This method is also called by other methods to restrict searching to some sites
69 site = "site:#{params[:site]}+"
73 # It is also possible to choose a filter to remove constant parts from the titles
74 # e.g.: "Wikipedia, the free encyclopedia" when doing Wikipedia searches
75 filter = params[:filter] || ""
77 url = GOOGLE_WAP_SEARCH + site + searchfor
79 hits = params[:hits] || @bot.config['google.hits']
80 hits = 1 if params[:lucky]
82 first_pars = params[:firstpar] || @bot.config['google.first_par']
84 single = params[:lucky] || (hits == 1 and first_pars == 1)
87 wml = @bot.httputil.get(url)
90 m.reply "error googling for #{what}"
93 results = wml.scan(GOOGLE_WAP_LINK)
94 if results.length == 0
95 m.reply "no results found for #{what}"
98 single ||= (results.length==1)
101 results = results[0...hits].map { |res|
103 t = Utils.decode_html_entities res[2].gsub(filter, '').strip
104 u = URI.unescape(res[0] || res[1])
106 "%{n}%{b}%{t}%{b}%{sep}%{u}" % {
107 :n => (single ? "" : "#{n}. "),
108 :sep => (single ? " -- " : ": "),
109 :b => Bold, :t => t, :u => u
114 m.reply results.first
118 # If we return a single, full result, change the output to a more compact representation
120 m.reply "Result for %s: %s -- %s" % [what, results, Utils.get_first_pars(urls, first_pars)], :overlong => :truncate
124 m.reply "Results for #{what}: #{results}", :split_at => /\s+\|\s+/
126 return unless first_pars > 0
128 Utils.get_first_pars urls, first_pars, :message => m
132 def google_define(m, what, params)
134 wml = @bot.httputil.get(GOOGLE_SEARCH + CGI.escape(what))
137 m.reply "error googling for #{what}"
142 related_index = wml.index(/Related phrases:/, 0)
143 raise unless related_index
144 defs_index = wml.index(/Definitions of <b>/, related_index)
145 raise unless defs_index
146 defs_end = wml.index(/<input/, defs_index)
147 raise unless defs_end
149 m.reply "no results found for #{what}"
153 related = wml[related_index...defs_index]
154 defs = wml[defs_index...defs_end]
156 m.reply defs.ircify_html(:a_href => Underline), :split_at => (Underline + ' ')
161 params.merge!(:lucky => true)
166 what = params[:words].to_s
167 searchfor = CGI.escape(what)
169 debug "Getting gcalc thing: #{searchfor.inspect}"
170 url = GOOGLE_SEARCH + searchfor
173 html = @bot.httputil.get(url)
175 m.reply "error googlecalcing #{what}"
179 debug "#{html.size} bytes of html recieved"
181 results = html.scan(GOOGLE_CALC_RESULT)
182 debug "results: #{results.inspect}"
184 if results.length != 1
185 m.reply "couldn't calculate #{what}"
189 result = results[0][0].ircify_html
190 debug "replying with: #{result.inspect}"
194 def gcount(m, params)
195 what = params[:words].to_s
196 searchfor = CGI.escape(what)
198 debug "Getting gcount thing: #{searchfor.inspect}"
199 url = GOOGLE_SEARCH + searchfor
202 html = @bot.httputil.get(url)
204 m.reply "error googlecounting #{what}"
208 debug "#{html.size} bytes of html recieved"
210 results = html.scan(GOOGLE_COUNT_RESULT)
211 debug "results: #{results.inspect}"
213 if results.length != 1
214 m.reply "couldn't count #{what}"
218 result = results[0][0].ircify_html
219 debug "replying with: #{result.inspect}"
220 m.reply "total results: #{result}"
225 what = params[:words].to_s
226 searchfor = CGI.escape("define " + what)
228 debug "Getting gdef thing: #{searchfor.inspect}"
229 url = GOOGLE_WAP_SEARCH + searchfor
232 html = @bot.httputil.get(url)
234 m.reply "error googledefining #{what}"
239 results = html.scan(GOOGLE_DEF_RESULT)
240 debug "results: #{results.inspect}"
242 if results.length != 1
243 m.reply "couldn't find a definition for #{what} on Google"
247 gdef_link = "http://www.google.com" + CGI.unescapeHTML(results[0][0]) # could be used to extract all defs
248 head = results[0][1].ircify_html
249 text = results[0][2].ircify_html
251 m.reply "#{head} -- #{link}\n#{text}"
253 ### gdef_link could be used for something like
254 # html_defs = @bot.httputil.get(gdef_link)
255 # related_index = html_defs.index(/Related phrases:/, 0)
256 # defs_index = html_defs.index(/Definitions of <b>/, related_index)
258 # related = html_defs[related_index..defs_index]
259 # defs = html_defs[defs_index..-1]
261 # m.reply defs.gsub(' <br/>','<li>').ircify_html
264 def wikipedia(m, params)
266 site = "#{lang.nil? ? '' : lang + '.'}wikipedia.org"
267 debug "Looking up things on #{site}"
269 params[:filter] = / - Wikipedia.*$/
270 params[:hits] = @bot.config['wikipedia.hits']
271 params[:firstpar] = @bot.config['wikipedia.first_par']
272 return google(m, params)
275 def unpedia(m, params)
276 site = "uncyclopedia.org"
277 debug "Looking up things on #{site}"
279 params[:filter] = / - Uncyclopedia.*$/
280 params[:hits] = @bot.config['wikipedia.hits']
281 params[:firstpar] = @bot.config['wikipedia.first_par']
282 return google(m, params)
286 where = params[:words].to_s
287 where.sub!(/^\s*in\s*/, '')
288 searchfor = CGI.escape("time in " + where)
289 url = GOOGLE_SEARCH + searchfor
292 html = @bot.httputil.get(url)
294 m.reply "Error googletiming #{where}"
299 results = html.scan(GOOGLE_TIME_RESULT)
300 debug "results: #{results.inspect}"
302 if results.length != 1
303 m.reply "Couldn't find the time for #{where} on Google"
307 time = results[0][0].ircify_html
312 plugin = SearchPlugin.new
314 plugin.map "search *words", :action => 'google', :threaded => true
315 plugin.map "google *words", :action => 'google', :threaded => true
316 plugin.map "lucky *words", :action => 'lucky', :threaded => true
317 plugin.map "gcount *words", :action => 'gcount', :threaded => true
318 plugin.map "gcalc *words", :action => 'gcalc', :threaded => true
319 plugin.map "gdef *words", :action => 'gdef', :threaded => true
320 plugin.map "gtime *words", :action => 'gtime', :threaded => true
321 plugin.map "wp :lang *words", :action => 'wikipedia', :requirements => { :lang => /^\w\w\w?$/ }, :threaded => true
322 plugin.map "wp *words", :action => 'wikipedia', :threaded => true
323 plugin.map "unpedia *words", :action => 'unpedia', :threaded => true