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maloja/maloja/apis/audioscrobbler_legacy.py
2020-10-29 17:21:50 +01:00

108 lines
3.0 KiB
Python

from ._base import APIHandler
from ._exceptions import *
from .. import database
class AudioscrobblerLegacy(APIHandler):
__apiname__ = "Legacy Audioscrobbler"
__doclink__ = "https://web.archive.org/web/20190531021725/https://www.last.fm/api/submissions"
__aliases__ = [
"audioscrobbler_legacy",
"audioscrobbler/1.2"
]
def init(self):
# no need to save these on disk, clients can always request a new session
self.mobile_sessions = []
self.methods = {
"handshake":self.handshake,
"nowplaying":self.now_playing,
"scrobble":self.submit_scrobble
}
self.errors = {
BadAuthException:(200,"BADAUTH"),
InvalidAuthException:(200,"BADAUTH"),
InvalidMethodException:(200,"FAILED"),
InvalidSessionKey:(200,"BADSESSION"),
ScrobblingException:(500,"FAILED")
}
def get_method(self,pathnodes,keys):
if keys.get("hs") == 'true': return 'handshake'
else: return pathnodes[0]
def handshake(self,pathnodes,keys):
user = keys.get("u")
auth = keys.get("a")
timestamp = keys.get("t")
apikey = keys.get("api_key")
host = keys.get("Host")
protocol = 'https'
# expect username and password
if auth is not None:
for key in database.allAPIkeys():
if check_token(auth, key, timestamp):
sessionkey = generate_key(self.mobile_sessions)
return 200, (
"OK\n"
f"{sessionkey}\n"
f"{protocol}://{host}/apis/audioscrobbler_legacy/nowplaying\n"
f"{protocol}://{host}/apis/audioscrobbler_legacy/scrobble\n"
)
else:
raise InvalidAuthException()
else:
raise BadAuthException()
def now_playing(self,pathnodes,keys):
# I see no implementation in the other compatible APIs, so I have just
# created a route that always says it was successful except if the
# session is invalid
if keys.get("s") is None or keys.get("s") not in self.mobile_sessions:
raise InvalidSessionKey()
else:
return "OK"
def submit_scrobble(self,pathnodes,keys):
if keys.get("s") is None or keys.get("s") not in self.mobile_sessions:
raise InvalidSessionKey()
else:
for count in range(0,50):
artist_key = f"a[{count}]"
track_key = f"t[{count}]"
time_key = f"i[{count}]"
if artist_key in keys and track_key in keys:
artiststr,titlestr = keys[artist_key], keys[track_key]
try:
timestamp = int(keys[time_key])
except:
timestamp = None
#database.createScrobble(artists,title,timestamp)
self.scrobble(artiststr,titlestr,time=timestamp)
else:
return 200,"OK"
return 200,"OK"
import hashlib
import random
def md5(input):
m = hashlib.md5()
m.update(bytes(input,encoding="utf-8"))
return m.hexdigest()
def generate_key(ls):
key = ""
for i in range(64):
key += str(random.choice(list(range(10)) + list("abcdefghijklmnopqrstuvwxyz") + list("ABCDEFGHIJKLMNOPQRSTUVWXYZ")))
ls.append(key)
return key
def lastfm_token(password, ts):
return md5(md5(password) + ts)
def check_token(received_token, expected_key, ts):
expected_token = lastfm_token(expected_key, ts)
return received_token == expected_token