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#Tube Status Enquiry plugin for rbot
#Plugin by Colm Linehan
require 'rexml/document'
require 'uri/common'
class TubePlugin < Plugin
include REXML
def help(plugin, topic="")
"tube [district|circle|metropolitan|central|jubilee|bakerloo|waterloo_city|hammersmith_city|victoria|eastlondon|northern|piccadilly] => display tube service status for the specified line(Docklands Light Railway is not currently supported), tube stations => list tube stations (not lines) with problems"
end
def tube(m, params)
line = params[:line]
begin
tube_page = @bot.httputil.get_cached(URI.parse("http://www.tfl.gov.uk/tfl/service_rt_tube.shtml"), 1, 1)
rescue URI::InvalidURIError, URI::BadURIError => e
m.reply "Cannot contact Tube Service Status page"
return
end
unless tube_page
m.reply "Cannot contact Tube Service Status page"
return
end
next_line = false
tube_page.each_line {|l|
next if l == "\r\n"
next if l == "\n"
if (next_line)
if (l =~ /^<tr valign=top> <td>\s*(.*)<\/td><\/tr>/i)
m.reply $1.split(/<[^>]+>| /i).join(" ")
return
else
m.reply "There are problems on the #{line} line, but I didn't understand the page format. You should check out http://www.tfl.gov.uk/tfl/service_rt_tube.shtml for more details."
return
end
end
next_line = true if (l =~ /class="#{line}"/i)
}
m.reply "No Problems on the #{line} line."
end
def check_stations(m, params)
begin
tube_page = @bot.httputil.get_cached(URI.parse("http://www.tfl.gov.uk/tfl/service_rt_tube.shtml"))
rescue URI::InvalidURIError, URI::BadURIError => e
m.reply "Cannot contact Tube Service Status page"
return
end
unless tube_page
m.reply "Cannot contact Tube Service Status page"
return
end
stations_array = Array.new
tube_page.each_line {|l|
if (l =~ /<tr valign=top> <td valign="middle" class="Station"><b>(.*)<\/b><\/td><\/tr>\s*/i)
stations_array.push $1
end
}
if stations_array.empty?
m.reply "There are no station-specific announcements"
return
else
m.reply stations_array.join(", ")
return
end
end
end
plugin = TubePlugin.new
plugin.map 'tube stations', :action => 'check_stations'
plugin.map 'tube :line'
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