diff options
Diffstat (limited to 'Lib/ipaddress.py')
| -rw-r--r-- | Lib/ipaddress.py | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/Lib/ipaddress.py b/Lib/ipaddress.py index d8a84f33264..8b60b9d5c9c 100644 --- a/Lib/ipaddress.py +++ b/Lib/ipaddress.py @@ -1660,8 +1660,18 @@ class _BaseV6: """ if not ip_str: raise AddressValueError('Address cannot be empty') - - parts = ip_str.split(':') + if len(ip_str) > 45: + shorten = ip_str + if len(shorten) > 100: + shorten = f'{ip_str[:45]}({len(ip_str)-90} chars elided){ip_str[-45:]}' + raise AddressValueError(f"At most 45 characters expected in " + f"{shorten!r}") + + # We want to allow more parts than the max to be 'split' + # to preserve the correct error message when there are + # too many parts combined with '::' + _max_parts = cls._HEXTET_COUNT + 1 + parts = ip_str.split(':', maxsplit=_max_parts) # An IPv6 address needs at least 2 colons (3 parts). _min_parts = 3 @@ -1681,7 +1691,6 @@ class _BaseV6: # An IPv6 address can't have more than 8 colons (9 parts). # The extra colon comes from using the "::" notation for a single # leading or trailing zero part. - _max_parts = cls._HEXTET_COUNT + 1 if len(parts) > _max_parts: msg = "At most %d colons permitted in %r" % (_max_parts-1, ip_str) raise AddressValueError(msg) |