feat: create new onion services via api

app/models/onions.py

@@ -1,5 +1,3 @@
-import base64
-import hashlib
 from typing import Optional, TypedDict
 
 from sqlalchemy.orm import Mapped, mapped_column, relationship
@@ -8,6 +6,7 @@ from app.brm.brn import BRN
 from app.extensions import db
 from app.models import AbstractConfiguration, AbstractResource
 from app.models.base import Group
+from app.util.onion import onion_hostname
 
 
 class OnionDict(TypedDict):
@@ -40,20 +39,7 @@ class Onion(AbstractConfiguration):
 
     @property
     def onion_name(self) -> str:
-        p = self.onion_public_key[32:]
-
-        h = hashlib.sha3_256()
-        h.update(b".onion checksum")
-        h.update(p)
-        h.update(b"\x03")
-        checksum = h.digest()
-
-        result = bytearray(p)
-        result.extend(checksum[0:2])
-        result.append(0x03)
-
-        onion = base64.b32encode(result).decode("utf-8").strip("=")
-        return onion.lower()
+        return onion_hostname(self.onion_public_key)
 
     def to_dict(self) -> OnionDict:
         return {