oldhaven/app/controllers/last_fm_controller.rb

require 'open-uri'
require 'net/http'

class LastFmController < ApplicationController
  before_filter :authorize
  @@api_key = '04fda005dbf61a50af5abc3e90f111f2'
  @@secret = '19e70e98b291e9f15d0516925945eb1b'
  
  def connect
    unless params[:sid].nil? or params[:token].nil?
      session = Session.find_by_key(params[:sid])
      unless session.nil?
        lastfm_api_session = LastFM::Auth.get_session(:token => params[:token], :api_sig => true)
        session.user.lastfm_key = lastfm_api_session["session"]['key']
        session.user.lastfm_username = lastfm_api_session["session"]['name']
        session.user.save
        render :text => '<script>window.close();</script>'
      else
        render :text => 'You Don\'t Fool Me'
      end
    else
      render :text => 'So Much Trouble In The World'
    end
  end
  
  def getinfo
    @res = {}
    
    user = User.find_by_vkid(params[:mid])
    unless user.lastfm_key.nil?
      render :json => {
        :connected => true,
        :username => user.lastfm_username
      }
    else
      render :json => {
        :connected => false,
        :lastfm_login_url => 'http://www.last.fm/api/auth?api_key='+ @@api_key +
          '&cb=http://'+ request.host << '/lastfm/connect/?sid='+ user.session.key
      }
    end
  end
  
  def listening
    @res = {}
    
    if params[:artist].nil? or params[:album].nil? or params[:name].nil?
      render :json => { :status => 'bad params' }
      return
    end
    
    user = User.find_by_vkid(params[:mid])
    if user.lastfm_key.nil?
      render :json => {:status => 'lastfm account is not connected', :user => user}
      return
    end
    
    r = LastFM::Track.update_now_playing(
      :track => params[:name].gsub(/\s/, '+').gsub(/\&/, '&amp;'),
      :artist => params[:artist].gsub(/\s/, '+').gsub(/\&/, '&amp;'),
      :album => params[:album].gsub(/\s/, '+').gsub(/\&/, '&amp;'),
      :trackNumber => params[:position],
      :mbid => params[:mbid],
      :duration => params[:length],

      :api_sig => true,
      :sk => user.lastfm_key
    )
    
    render :json => { :status => r['error'].nil? ? 'success' : 'failed' }
    return
  end
  
  def scrobble
    @res = {}
    
    if params[:artist].nil? or params[:album].nil? or params[:name].nil?
      render :json => {:status => 'bad params'}
      return
    end
    
    user = User.find_by_vkid(params[:mid])
    if user.lastfm_key.nil?
      render :json => {:status => 'lastfm account is not connected', :user => user}
      return
    end
    
    r = LastFM::Track.scrobble(
      :track => params[:name].gsub(/\s/, '+').gsub(/\&/, '&amp;'),
      :timestamp => Time.now.utc.to_i,
      :artist => params[:artist].gsub(/\s/, '+').gsub(/\&/, '&amp;'),
      :album => params[:album].gsub(/\s/, '+').gsub(/\&/, '&amp;'),
      :trackNumber => params[:position],
      :mbid => params[:mbid],
      :duration => params[:length],
      
      :api_sig => true,
      :sk => user.lastfm_key
    )
    
    render :json => { :status => r['error'].nil? ? 'success' : 'failed' }
    return
  end
end