Plex Random Pre-Rolls

random_preroll.py

#!/usr/bin/env python

import random
import sys
import urllib

import requests
from lxml import etree


PLEX_URL = 'http://...:32400'
PLEX_SERVER_ID = '...'
PLEX_PREROLLS_SECTION_ID = '...'

BASE_URL = 'https://app.plex.tv/web/app#!/server/{server_id}/details?key={key}'

try:
    media_type = sys.argv[1]
except:
    exit("USAGE: random_preroll.py <media_type>")

if media_type != 'movie':
    exit()

prerolls = etree.fromstring(requests.get('{}/library/sections/{}/all'.format(PLEX_URL, PLEX_PREROLLS_SECTION_ID)).content)
preroll_key = random.choice(prerolls.xpath('//Video')).attrib['key']
preroll_url = BASE_URL.format(**dict(server_id=PLEX_SERVER_ID, key=preroll_key))
requests.put('{}/:/prefs?{}'.format(PLEX_URL, urllib.urlencode({'CinemaTrailersPrerollID': preroll_url})))