The private IP range improvament #138
Description
The private IP range check for 172.x.x.x is incomplete. The private IP range is only 172.16.0.0/12 (172.16.0.0 to 172.31.255.255), but this code treats all IPs starting with "172." as private, including public IP ranges like 172.0.x.x through 172.15.x.x and 172.32.x.x through 172.255.x.x. This could cause incorrect geolocation lookups to be skipped for valid public IPs.
Consider using a more accurate check:
- For 172.x ranges, verify that the second octet is between 16 and 31
- Alternatively, use a library for proper IP range validation
Originally posted by @Copilot in #135 (comment)