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|
#-- vim:sw=2:et
#++
#
# :title: lastfm plugin for rbot
#
# Author:: Jeremy Voorhis
# Author:: Giuseppe "Oblomov" Bilotta <giuseppe.bilotta@gmail.com>
#
# Copyright:: (C) 2005 Jeremy Voorhis
# Copyright:: (C) 2007 Giuseppe Bilotta
#
# License:: GPL v2
require 'open-uri'
class ::LastFmEvent
# matches are:
# 1. day 2. moth 3. year 4. url_who 5. who 6. url_where 7. where 8. how_many
REGEXP = /<tr class="vevent\s+\w+\s+\S+?-(\d\d)-(\d\d)-(\d\d\d\d)\s*">.*?<a class="url summary" href="(\/event\/\d+)">(.*?)<\/a>.*?<a href="(\/venue\/\d+)">(.*?)<\/a>.*?<td class="attendance">(.*?)<\/td>\s+<\/tr>/m
attr_accessor :url, :date, :artist, :location, :attendance
def initialize(url, date, artist, location, attendance)
@url = url
@date = date
@artist = artist
@location = location
@attendance = attendance
end
def compact_display
if @attendance.empty?
return "%s %s @ %s %s" % [@date.strftime("%a %b, %d %Y"), @artist, @location, @url]
else
return "%s %s @ %s (%s) %s" % [@date.strftime("%a %b, %d %Y"), @artist, @location, @attendance, @url]
end
end
alias :to_s :compact_display
end
class LastFmPlugin < Plugin
BotConfig.register BotConfigIntegerValue.new('lastfm.max_events',
:default => 25, :validate => Proc.new{|v| v > 1},
:desc => "Maximum number of events to display.")
BotConfig.register BotConfigIntegerValue.new('lastfm.default_events',
:default => 3, :validate => Proc.new{|v| v > 1},
:desc => "Default number of events to display.")
LASTFM = "http://www.last.fm"
def help(plugin, topic="")
case (topic.intern rescue nil)
when :event, :events
"lastfm [<num>] events in <location> => show information on events in or near <location>. lastfm [<num>] events by <artist/group> => show information on events by <artist/group>. The number of events <num> that can be displayed is optional, defaults to #{@bot.config['lastfm.default_events']} and cannot be higher than #{@bot.config['lastfm.max_events']}"
when :artist, :group
"lastfm artist <name> => show information on artist/group <name> from last.fm"
when :song, :track
"lastfm track <name> => show information on track/song <name> from last.fm [not implemented yet]"
when :album
"lastfm album <name> => show information on album <name> from last.fm [not implemented yet]"
else
"lastfm <function> <user> => lastfm data for <user> on last.fm where <function> in [recenttracks, topartists, topalbums, toptracks, tags, friends, neighbors]. other topics: events, artist, group, song, track, album"
end
end
def find_event(m, params)
num = params[:num] || @bot.config['lastfm.default_events']
num = num.to_i.clip(1, @bot.config['lastfm.max_events'])
location = artist = nil
location = params[:location].to_s if params[:location]
artist = params[:who].to_s if params[:who]
page = nil
spec = location ? "in #{location}" : "by #{artist}"
begin
if location
esc = CGI.escape(location)
page = @bot.httputil.get "#{LASTFM}/events/?findloc=#{esc}"
else
esc = CGI.escape(artist)
page = @bot.httputil.get "#{LASTFM}/events?s=#{esc}&findloc="
end
if page
events = Array.new
disp_events = Array.new
pre_events = page.scan(LastFmEvent::REGEXP)
# debug pre_events.inspect
if pre_events.empty?
# We may not find any even because the page gives a list
# of locations instead. In this case, retry with the first of
# these location
if page.match(/<a href="(\/events\/\?l=[^"]+)">/)
debug "Rechecking with #{$1}"
page = @bot.httputil.get(LASTFM+$1)
pre_events = page.scan(LastFmEvent::REGEXP) if page
end
if pre_events.empty?
m.reply "No events found #{spec}, sorry"
return
end
end
pre_events.each { |day, month, year, url_who, who, url_where, where, how_many|
date = Time.utc(year.to_i, month.to_i, day.to_i)
url = LASTFM + url_who
if who.match(/<strong>(.*?)<\/strong>(.+)?/)
artist = Bold + $1.ircify_html + Bold
artist << ", " << $2.ircify_html if $2
else
debug "who: #{who.inspect}"
artist = who.ircify_html
end
if where.match(/<strong>(.*?)<\/strong>(?:<br\s*\/>(.+)?)?/)
loc = Bold + $1.ircify_html + Bold
loc << ", " << $2.ircify_html if $2
else
debug where.inspect
loc = where.ircify_html
end
attendance = how_many.ircify_html
events << LastFmEvent.new(url, date, artist, loc, attendance)
}
# debug events.inspect
events[0...num].each { |event|
disp_events << event.to_s
}
m.reply disp_events.join(' | '), :split_at => /\s+\|\s+/
else
m.reply "No events found #{spec}"
return
end
rescue Exception => e
m.reply "I had problems looking for events #{spec}"
error e.inspect
debug e.backtrace.join("\n")
debug page[0...10*1024] if page
return
end
end
def find_artist(m, params)
artist = params[:who].to_s
page = nil
begin
esc = URI.escape(CGI.escape(artist))
page = @bot.httputil.get "#{LASTFM}/music/#{esc}"
if page
if page.match(/<h1 class="h1artist"><a href="([^"]+)">(.*?)<\/a><\/h1>/)
url = LASTFM + $1
title = $2.ircify_html
else
raise "No URL/Title found for #{artist}"
end
wiki = "This artist doesn't have a description yet. You can help by writing it: #{url}/+wiki?action=edit"
if page.match(/<div class="wikiAbstract">(.*?)<\/div>/m)
wiki = $1.ircify_html
end
m.reply "%s : %s\n%s" % [title, url, wiki], :overlong => :truncate
else
m.reply "no data found on #{artist}"
return
end
rescue Exception => e
m.reply "I had problems looking for #{artist}"
error e.inspect
debug e.backtrace.join("\n")
debug page[0...10*1024] if page
return
end
end
def find_track(m, params)
m.reply "not implemented yet, sorry"
end
def find_album(m, params)
m.reply "not implemented yet, sorry"
end
def lastfm(m, params)
action = params[:action].intern
action = :neighbours if action == :neighbors
user = params[:user]
begin
data = open("http://ws.audioscrobbler.com/1.0/user/#{user}/#{action}.txt")
m.reply "#{action} for #{user}:"
m.reply data.to_a[0..3].map{|l| l.split(',',2)[-1].chomp}.join(", ")
rescue
m.reply "could not find #{action} for #{user} (is #{user} a user?)"
end
end
end
plugin = LastFmPlugin.new
plugin.map 'lastfm [:num] event[s] in *location', :action => :find_event, :requirements => { :num => /\d+/ }
plugin.map 'lastfm [:num] event[s] by *who', :action => :find_event, :requirements => { :num => /\d+/ }
plugin.map 'lastfm [:num] event[s] [for] *who', :action => :find_event, :requirements => { :num => /\d+/ }
plugin.map 'lastfm artist *who', :action => :find_artist
plugin.map 'lastfm group *who', :action => :find_artist
plugin.map 'lastfm track *dunno', :action => :find_track
plugin.map 'lastfm song *dunno', :action => :find_track
plugin.map 'lastfm album *dunno', :action => :find_album
plugin.map 'lastfm :action *user'
|
