Initial commit

venv/Lib/site-packages/aiogram/utils/auth_widget.py

@@ -0,0 +1,34 @@
+import hashlib
+import hmac
+from typing import Any, Dict
+
+
+def check_signature(token: str, hash: str, **kwargs: Any) -> bool:
+    """
+    Generate hexadecimal representation
+    of the HMAC-SHA-256 signature of the data-check-string
+    with the SHA256 hash of the bot's token used as a secret key
+
+    :param token:
+    :param hash:
+    :param kwargs: all params received on auth
+    :return:
+    """
+    secret = hashlib.sha256(token.encode("utf-8"))
+    check_string = "\n".join(f"{k}={kwargs[k]}" for k in sorted(kwargs))
+    hmac_string = hmac.new(
+        secret.digest(), check_string.encode("utf-8"), digestmod=hashlib.sha256
+    ).hexdigest()
+    return hmac_string == hash
+
+
+def check_integrity(token: str, data: Dict[str, Any]) -> bool:
+    """
+    Verify the authentication and the integrity
+    of the data received on user's auth
+
+    :param token: Bot's token
+    :param data: all data that came on auth
+    :return:
+    """
+    return check_signature(token, **data)