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require 'net/http'
require 'uri/common'
Net::HTTP.version_1_2
class BabelPlugin < Plugin
LANGS = %w{en fr de it pt es nl ru zh zt el ja ko}
BotConfig.register BotConfigEnumValue.new('translate.default_from',
:values => LANGS, :default => 'en',
:desc => "Default language to translate from")
BotConfig.register BotConfigEnumValue.new('translate.default_to',
:values => LANGS, :default => 'en',
:desc => "Default language to translate to")
def help(plugin, topic="")
from = @bot.config['translate.default_from']
to = @bot.config['translate.default_to']
"translate to <lang> <string> => translate from #{from} to <lang>, translate from <lang> <string> => translate to #{to} from <lang>, translate <fromlang> <tolang> <string> => translate from <fromlang> to <tolang>. If <string> is an http url, translates the referenced webpage and returns the 1st content paragraph. Languages: #{LANGS.join(', ')}"
end
def translate(m, params)
langs = LANGS
trans_from = params[:fromlang] ? params[:fromlang] : @bot.config['translate.default_from']
trans_to = params[:tolang] ? params[:tolang] : @bot.config['translate.default_to']
trans_text = params[:phrase].to_s
lang_match = langs.join("|")
unless(trans_from =~ /^(#{lang_match})$/ && trans_to =~ /^(#{lang_match})$/)
m.reply "invalid language: valid languagess are: #{langs.join(' ')}"
return
end
data_text = URI.escape trans_text
trans_pair = "#{trans_from}_#{trans_to}"
if (trans_text =~ /^http:\/\//) && (URI.parse(trans_text) rescue nil)
url = 'http://babelfish.altavista.com/babelfish/trurl_pagecontent' +
"?lp=#{trans_pair}&url=#{data_text}"
return Utils.get_first_pars([url], 1, :message => m)
end
data = "lp=#{trans_pair}&doit=done&intl=1&tt=urltext&urltext=#{data_text}"
# check cache for previous lookups
if @registry.has_key?("#{trans_pair}/#{data_text}")
m.reply @registry["#{trans_pair}/#{data_text}"]
return
end
headers = {
"content-type" => "application/x-www-form-urlencoded; charset=utf-8"
}
query = "/babelfish/tr"
begin
resp = @bot.httputil.get_response('http://babelfish.altavista.com'+query,
:method => :post,
:body => data,
:headers => headers)
rescue Exception => e
m.reply "http error: #{e.message}"
return
end
if (resp.code == "200")
lines = Array.new
resp.body.each_line { |l| lines.push l }
l = lines.join(" ")
debug "babelfish response: #{l}"
case l
when /^\s+<td bgcolor=white class=s><div style=padding:10px;>(.*)<\/div>/
answer = $1
# cache the answer
if(answer.length > 0)
@registry["#{trans_pair}/#{data_text}"] = answer
end
m.reply answer
return
when /^\s+<option value="#{trans_pair}"\s+SELECTED>/
m.reply "couldn't parse babelfish response html :("
else
m.reply "babelfish doesn't support translation from #{trans_from} to #{trans_to}"
end
else
m.reply "couldn't talk to babelfish :("
end
end
end
plugin = BabelPlugin.new
plugin.map 'translate to :tolang *phrase'
plugin.map 'translate from :fromlang *phrase'
plugin.map 'translate :fromlang :tolang *phrase'
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