kopia lustrzana https://dev.funkwhale.audio/funkwhale/funkwhale
74 wiersze
2.2 KiB
Python
74 wiersze
2.2 KiB
Python
from django.conf import settings
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from django.core import signing
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from django.core.exceptions import ValidationError
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from rest_framework import authentication, exceptions
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from . import models
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from .oauth import scopes as available_scopes
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def generate_scoped_token(user_id, user_secret, scopes):
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if set(scopes) & set(available_scopes.SCOPES_BY_ID) != set(scopes):
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raise ValueError(f"{scopes} contains invalid scopes")
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return signing.dumps(
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{
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"user_id": user_id,
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"user_secret": str(user_secret),
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"scopes": list(sorted(scopes)),
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},
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salt="scoped_tokens",
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)
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def authenticate_scoped_token(token):
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try:
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payload = signing.loads(
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token,
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salt="scoped_tokens",
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max_age=settings.SCOPED_TOKENS_MAX_AGE,
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)
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except signing.BadSignature:
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raise exceptions.AuthenticationFailed("Invalid token signature")
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try:
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user_id = int(payload["user_id"])
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user_secret = str(payload["user_secret"])
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scopes = list(payload["scopes"])
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except (KeyError, ValueError, TypeError):
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raise exceptions.AuthenticationFailed("Invalid scoped token payload")
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try:
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user = (
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models.User.objects.all()
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.for_auth()
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.get(pk=user_id, secret_key=user_secret, is_active=True)
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)
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except (models.User.DoesNotExist, ValidationError):
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raise exceptions.AuthenticationFailed("Invalid user")
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return user, scopes
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class ScopedTokenAuthentication(authentication.BaseAuthentication):
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"""
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Used when signed token returned by generate_scoped_token are provided via
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token= in GET requests. Mostly for <audio src=""> urls, since it's not possible
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to override headers sent by the browser when loading media.
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"""
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def authenticate(self, request):
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data = request.GET
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token = data.get("token")
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if not token:
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return None
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try:
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user, scopes = authenticate_scoped_token(token)
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except exceptions.AuthenticationFailed:
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raise exceptions.AuthenticationFailed("Invalid token")
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setattr(request, "scopes", scopes)
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setattr(request, "actor", user.actor)
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return user, None
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