funkwhale/api/funkwhale_api/subsonic/authentication.py

70 lines
1.8 KiB
Python

import binascii
import hashlib
from rest_framework import authentication
from rest_framework import exceptions
from funkwhale_api.users.models import User
def get_token(salt, password):
to_hash = password + salt
h = hashlib.md5()
h.update(to_hash.encode('utf-8'))
return h.hexdigest()
def authenticate(username, password):
try:
if password.startswith('enc:'):
password = password.replace('enc:', '', 1)
password = binascii.unhexlify(password).decode('utf-8')
user = User.objects.get(
username=username,
is_active=True,
subsonic_api_token=password)
except (User.DoesNotExist, binascii.Error):
raise exceptions.AuthenticationFailed(
'Wrong username or password.'
)
return (user, None)
def authenticate_salt(username, salt, token):
try:
user = User.objects.get(
username=username,
is_active=True,
subsonic_api_token__isnull=False)
except User.DoesNotExist:
raise exceptions.AuthenticationFailed(
'Wrong username or password.'
)
expected = get_token(salt, user.subsonic_api_token)
if expected != token:
raise exceptions.AuthenticationFailed(
'Wrong username or password.'
)
return (user, None)
class SubsonicAuthentication(authentication.BaseAuthentication):
def authenticate(self, request):
data = request.GET or request.POST
username = data.get('u')
if not username:
return None
p = data.get('p')
s = data.get('s')
t = data.get('t')
if not p and (not s or not t):
raise exceptions.AuthenticationFailed('Missing credentials')
if p:
return authenticate(username, p)
return authenticate_salt(username, s, t)