diff --git a/src/validators/domain.py b/src/validators/domain.py
index ecca605a..23ae263d 100644
--- a/src/validators/domain.py
+++ b/src/validators/domain.py
@@ -1,20 +1,39 @@
"""Domain."""
# standard
+from os import environ
from pathlib import Path
import re
+from typing import Optional, Set
# local
from .utils import validator
-def _iana_tld():
- """Load IANA TLDs as a Generator."""
- # source: https://data.iana.org/TLD/tlds-alpha-by-domain.txt
- with Path(__file__).parent.joinpath("_tld.txt").open() as tld_f:
- _ = next(tld_f) # ignore the first line
- for line in tld_f:
- yield line.strip()
+class _IanaTLD:
+ """Read IANA TLDs, and optionally cache them."""
+
+ _full_cache: Optional[Set[str]] = None
+ # source: https://www.statista.com/statistics/265677
+ _popular_cache = {"COM", "ORG", "RU", "DE", "NET", "BR", "UK", "JP", "FR", "IT"}
+
+ @classmethod
+ def _retrieve(cls):
+ with Path(__file__).parent.joinpath("_tld.txt").open() as tld_f:
+ _ = next(tld_f) # ignore the first line
+ for line in tld_f:
+ yield line.strip()
+
+ @classmethod
+ def check(cls, tld: str):
+ if tld in cls._popular_cache:
+ return True
+ if cls._full_cache is None:
+ if environ.get("PYVLD_CACHE_TLD") == "True":
+ cls._full_cache = set(cls._retrieve())
+ else:
+ return tld in cls._retrieve()
+ return tld in cls._full_cache
@validator
@@ -56,7 +75,7 @@ def domain(
if not value:
return False
- if consider_tld and value.rstrip(".").rsplit(".", 1)[-1].upper() not in _iana_tld():
+ if consider_tld and not _IanaTLD.check(value.rstrip(".").rsplit(".", 1)[-1].upper()):
return False
try:
pFad - Phonifier reborn
Pfad - The Proxy pFad of © 2024 Garber Painting. All rights reserved.
Note: This service is not intended for secure transactions such as banking, social media, email, or purchasing. Use at your own risk. We assume no liability whatsoever for broken pages.
Alternative Proxies:
Alternative Proxy
pFad Proxy
pFad v3 Proxy
pFad v4 Proxy