docker setup

srcs/.venv/lib/python3.11/site-packages/django/utils/ipv6.py

@@ -0,0 +1,47 @@
+import ipaddress
+
+from django.core.exceptions import ValidationError
+from django.utils.translation import gettext_lazy as _
+
+
+def clean_ipv6_address(
+    ip_str, unpack_ipv4=False, error_message=_("This is not a valid IPv6 address.")
+):
+    """
+    Clean an IPv6 address string.
+
+    Raise ValidationError if the address is invalid.
+
+    Replace the longest continuous zero-sequence with "::", remove leading
+    zeroes, and make sure all hextets are lowercase.
+
+    Args:
+        ip_str: A valid IPv6 address.
+        unpack_ipv4: if an IPv4-mapped address is found,
+        return the plain IPv4 address (default=False).
+        error_message: An error message used in the ValidationError.
+
+    Return a compressed IPv6 address or the same value.
+    """
+    try:
+        addr = ipaddress.IPv6Address(int(ipaddress.IPv6Address(ip_str)))
+    except ValueError:
+        raise ValidationError(error_message, code="invalid")
+
+    if unpack_ipv4 and addr.ipv4_mapped:
+        return str(addr.ipv4_mapped)
+    elif addr.ipv4_mapped:
+        return "::ffff:%s" % str(addr.ipv4_mapped)
+
+    return str(addr)
+
+
+def is_valid_ipv6_address(ip_str):
+    """
+    Return whether or not the `ip_str` string is a valid IPv6 address.
+    """
+    try:
+        ipaddress.IPv6Address(ip_str)
+    except ValueError:
+        return False
+    return True