HTTP Server for streaming podcasts / news / volume

yep_DD

Dear fellow Mirror Designers,

I wasn’t sure where to put this so I will post it here. From various sources I created a small python httpserver that changes the mirrors volume, starts a podcast (100 Seconds german news, when brushing your teeth ) or opens a live stream. This is the code, nothing special but may be helpful for some of you.

I use FHEM and Philips Hue Dimmer Switches to control it:

Uses:
python3, livestreamer, omxplayer

#!/usr/bin/python3 -u

host_name = '10.0.1.49'  # Change this to your Raspberry Pi IP address
host_port = 8000
proc = ''

import RPi.GPIO as GPIO
from pathlib import Path
import os
import subprocess
import signal
from subprocess import call
from time import sleep
from http.server import BaseHTTPRequestHandler, HTTPServer




class MyServer(BaseHTTPRequestHandler):

    def do_HEAD(self):
        self.send_response(200)
        self.send_header('Content-type', 'text/html')
        self.end_headers()

    def do_GET(self):
        global proc
        html = '''
           <html>
           <body style="width:960px; margin: 20px auto;">
           <h1>Magic Mirror Control</h1>
           <p>Current GPU temperature is {}</p>
           <p>Podcast: <a href="/play">Play</a> <a href="/stop">Stop</a></p>
           <p>ARD Livestream: <a href="/ard">Play</a> <a href="/stop">Stop</a></p>
           <p>Volume: <a href="/down">down</a> <a href="/up">up</a></p>
           <p>System: <a href="/shutdown">Shutdown</a> <a href="/restart">Restart</a></p>
           <div id="podcast-status"></div>
           <script>
               document.getElementById("podcast-status").innerHTML="{}";
           </script>
           </body>
           </html>
        '''
        temp = os.popen("/opt/vc/bin/vcgencmd measure_temp").read()
        self.do_HEAD()
        status = ''
        if self.path=='/':
            #GPIO.setmode(GPIO.BCM)
            #GPIO.setwarnings(False)
            #GPIO.setup(17, GPIO.IN)
            status='nothing'
        elif self.path=='/play':
            if proc=='':
                my_file = Path("/home/pi/MagicMirror/video.mp4")
                if my_file.is_file():
                    statinfo = os.stat('/home/pi/MagicMirror/video.mp4')
                    if statinfo.st_size > 0:
                        proc = subprocess.Popen(["omxplayer", "-o", "alsa:hw:ALSA", "--no-osd", "/home/pi/MagicMirror/video.mp4"], preexec_fn=os.setsid)
                        status='Playing Podcast'
                    else:
                        proc = subprocess.Popen(["omxplayer", "-o", "alsa:hw:ALSA", "--no-osd", "/home/pi/MagicMirror/Loading.mp4"], preexec_fn=os.setsid)
                        status='Not yet available'
                else:
                    proc = subprocess.Popen(["omxplayer", "-o", "alsa:hw:ALSA", "--no-osd", "/home/pi/MagicMirror/Loading.mp4"], preexec_fn=os.setsid)
                    status='Not yet available'
            else:
                status='Stopping Podcast'
                os.killpg(os.getpgid(proc.pid), signal.SIGTERM)
                proc=''
        elif self.path=='/ard':
            if proc=='':
                proc = subprocess.Popen(["livestreamer", "hlsvariant://daserste_live-lh.akamaihd.net/i/daserste_de@91204/master.m3u8", "best", "-vnp", "omxplayer -o alsa:hw:ALSA --no-osd --timeout 20"], preexec_fn=os.setsid)
                status='Playing ARD Livestream'
            else:
                status='Stopping Stream'
                os.killpg(os.getpgid(proc.pid), signal.SIGTERM)
                proc=''
        elif self.path=='/stop':
            if proc!='':
                status='Stopping Podcast'
                os.killpg(os.getpgid(proc.pid), signal.SIGTERM)
                proc=''
            else:
                status='Nothing to stop'
        elif self.path=='/shutdown':
            status='Shutdown'
            subprocess.Popen(["sudo", "shutdown", "-h", "now"], preexec_fn=os.setsid)
        elif self.path=='/restart':
            status='Restart'
            subprocess.Popen(["sudo", "reboot"], preexec_fn=os.setsid)
        elif self.path=='/down':
            status='Volume down'
            subprocess.Popen(["amixer", "set", "Master", "12%-"], preexec_fn=os.setsid)
        elif self.path=='/up':
            status='Volume up'
            subprocess.Popen(["amixer", "set", "Master", "12%+"], preexec_fn=os.setsid)
        self.wfile.write(html.format(temp[5:], status).encode("utf-8"))


if __name__ == '__main__':
    http_server = HTTPServer((host_name, host_port), MyServer)
    print("Server Starts - %s:%s" % (host_name, host_port))

    try:
        http_server.serve_forever()
    except KeyboardInterrupt:
        http_server.server_close()