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import json
import xml.etree.ElementTree as ET
from kodihelper import KodiHelper
helper = KodiHelper()
class Widevine(object):
license_url = helper.c.config['settings']['drmProxy']
def get_kid(self, mpd_url):
"""Parse the KID from the MPD manifest."""
mpd_data = helper.c.make_request(mpd_url, 'get')
mpd_root = ET.fromstring(mpd_data)
for i in mpd_root.iter('{urn:mpeg:dash:schema:mpd:2011}ContentProtection'):
if '{urn:mpeg:cenc:2013}default_KID' in i.attrib:
return i.attrib['{urn:mpeg:cenc:2013}default_KID']
def get_license(self, mpd_url, wv_challenge, token):
"""Acquire the Widevine license from the license server and return it."""
post_data = {
'drm_info': [x for x in bytearray(wv_challenge)], # convert challenge to a list of bytes
'kid': self.get_kid(mpd_url),
'token': token
}
wv_license = helper.c.make_request(self.license_url, 'post', payload=json.dumps(post_data))
return wv_license
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