main.py

from twisted.internet import reactor
from twisted.web.server import Site
from twisted.web.resource import Resource

from subprocess import call


keys = {
    b'n': 'Page_Down',
    b'p': 'Page_Up',
}

def run_action(message):
    print("Got ", message)
    key = keys.get(message, None)
    if key:
        call(['xdotool', 'key', key])


def home():
    return open("./index.html", 'rb').read()

def next_button():
    run_action(b'n')
    return b"ok"

def prev_button():
    run_action(b'p')
    return b"ok"


class CallResource(Resource):
    def __init__(self, fun):
        Resource.__init__(self)
        self.fun = fun

    def render_GET(self, request):
        return self.fun()

root = Resource()
root.putChild(b'',     CallResource(home))
root.putChild(b'next', CallResource(next_button))
root.putChild(b'prev', CallResource(prev_button))

site = Site(root)
reactor.listenTCP(8080, site)
reactor.run()