/musicplayer/musicplayer.py

import os
import tornado.ioloop
import tornado.web
import base64
from subprocess import call

FILES = '/mnt/files'
FIFO = '/root/mplayer_fifo'
MM = None



class MplayerManager():
    mute = 0
    volume = 75

    def send(self, msg):
        command = 'echo "' + msg + '" > ' + FIFO
        print command
        os.system(command)

    def setVolume(self, val):
        self.volume = val
        self.send('volume ' + str(val) + ' 1')

    def toggleMute(self):
        if self.mute == 0:
            self.send('mute 1')
            self.mute = 1
        else:
            self.send('mute 0')
            self.mute = 0
            self.setVolume(self.volume)

    def pause(self):
        self.send('pause')

    def stop(self):
        self.send('stop')

    def play(self, filename):
        self.send('loadfile ' + FILES + '/' + filename + ' 0')
        self.setVolume(self.volume)

class Index(tornado.web.RequestHandler):
    def get(self):
	files = []
	for filename in os.listdir(FILES):
		files.append(filename)
	self.render('index.html', files=files)

    def post(self):
        auth_hdr = self.request.headers.get('Authorization')
        print auth_hdr
        if auth_hdr == None or not auth_hdr.startswith('Basic '):
            return self.auth()

        auth_decoded = base64.decodestring(auth_hdr[6:])
        username, password = auth_decoded.split(':', 2)

        if username != "ja" or password != "ja":
            return self.auth()

        f = self.request.files['datafile'][0]
        filename = f['filename']
    	
        print "Upload request with file: " + filename
        x = open(FILES + '/' + filename, 'w')
    	x.write(f['body'])
    	x.close()

    	self.redirect("/")

    def auth(self):
        self.set_status(401)
        self.set_header('WWW-Authenticate', 'Basic realm=Fileserver')
        self.finish()
        return False

class VolumeChanged(tornado.web.RequestHandler):
    def get(self, vol):
        MM.setVolume(vol)

class MuteToggled(tornado.web.RequestHandler):
    def get(self):
        MM.toggleMute()

class Paused(tornado.web.RequestHandler):
    def get(self):
        MM.pause()

class Play(tornado.web.RequestHandler):
    def get(self, filename):
        MM.play(filename)
        self.redirect('/')

if __name__ == "__main__":
    MM = MplayerManager()

    webserv = tornado.web.Application([
                (r"/", Index),
                (r"/volume_changed/(1?[0-9]?[0-9])", VolumeChanged),
                (r"/mute/", MuteToggled),
                (r"/pause/", Paused),
                (r"/play/(.*)", Play)
        ])

    webserv.listen(80)
    tornado.ioloop.IOLoop.instance().start()