feat: first commit, auth

services/sessions.py

@@ -0,0 +1,18 @@
+from core.secrets import generate_pair, hash_refresh_token
+from db.models import Session
+from repositories.sessions import SessionsRepository
+from schemas.dto import KeyPair
+from schemas.providers import ProvidersType
+
+
+async def refresh_token_rotation(
+    sessions_repo: SessionsRepository, old_token: Session, iss: ProvidersType
+) -> KeyPair:
+    user = old_token.user
+    await sessions_repo.revoke(old_token.id)
+
+    key_pair = generate_pair(user.id, iss=iss)
+    refresh_token_hash = hash_refresh_token(key_pair.refresh_token)
+    await sessions_repo.create(user.id, refresh_token_hash, iss=iss)
+
+    return key_pair