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internal/normalize: simplify IP parser; cleanup

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Signed-off-by: NotAShelf <raf@notashelf.dev>
Change-Id: I7a860779a4fe49b8034d66f2abd910fc6a6a6964
This commit is contained in:
raf 2026-03-10 09:39:15 +03:00
commit fd3a832f7b
Signed by: NotAShelf
GPG key ID: 29D95B64378DB4BF
2 changed files with 45 additions and 28 deletions
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30
internal/normalize/referrer_test.go
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@ -108,6 +108,36 @@ func TestExtractReferrerDomain(t *testing.T) {
siteDomain: "example.com",
want: "internal",
},
{
name: "private IP 172.16.x (RFC1918)",
referrer: "http://172.16.0.1/page",
siteDomain: "example.com",
want: "internal",
},
{
name: "private IP 172.31.x (RFC1918 upper bound)",
referrer: "http://172.31.255.1/page",
siteDomain: "example.com",
want: "internal",
},
{
name: "private IP 172.20.x (middle of range)",
referrer: "http://172.20.50.100/page",
siteDomain: "example.com",
want: "internal",
},
{
name: "public IP 172.15.x (just outside private range)",
referrer: "http://172.15.0.1/page",
siteDomain: "example.com",
want: "other", // not internal, but invalid TLD
},
{
name: "public IP 172.32.x (just outside private range)",
referrer: "http://172.32.0.1/page",
siteDomain: "example.com",
want: "other", // not internal, but invalid TLD
},
}
for _, tt := range tests {