first commit

backend/app/deps/dns_setup_auth.py

@@ -0,0 +1,28 @@
+import secrets
+
+from fastapi import Depends, HTTPException, status
+from fastapi.security import HTTPBasic, HTTPBasicCredentials
+
+from app.config import get_settings
+
+security = HTTPBasic()
+
+
+async def require_dns_setup_auth(
+    credentials: HTTPBasicCredentials = Depends(security),
+) -> None:
+    settings = get_settings()
+    username_ok = secrets.compare_digest(
+        credentials.username,
+        settings.dns_setup_username,
+    )
+    password_ok = secrets.compare_digest(
+        credentials.password,
+        settings.dns_setup_password,
+    )
+    if not (username_ok and password_ok):
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED,
+            detail="Invalid DNS setup credentials.",
+            headers={"WWW-Authenticate": "Basic"},
+        )