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package realip
import (
"net/http"
"strings"
"testing"
)
func TestIsLocalAddr(t *testing.T) {
testData := map[string]bool{
"127.0.0.0": true,
"10.0.0.0": true,
"169.254.0.0": true,
"192.168.0.0": true,
"::1": true,
"fc00::": true,
"172.15.0.0": false,
"172.16.0.0": true,
"172.31.0.0": true,
"172.32.0.0": false,
"147.12.56.11": false,
}
for addr, isLocal := range testData {
if isLocalAddress(addr) != isLocal {
format := "%s should "
if !isLocal {
format += "not "
}
format += "be local address"
t.Errorf(format, addr)
}
}
}
func TestIpAddrFromRemoteAddr(t *testing.T) {
testData := map[string]string{
"127.0.0.1:8888": "127.0.0.1",
"ip:port": "ip",
"ip": "ip",
"12:34::0": "12:34:",
}
for remoteAddr, expectedAddr := range testData {
if actualAddr := ipAddrFromRemoteAddr(remoteAddr); actualAddr != expectedAddr {
t.Errorf("ipAddrFromRemoteAddr of %s should be %s but get %s", remoteAddr, expectedAddr, actualAddr)
}
}
}
func TestRealIP(t *testing.T) {
newRequest := func(remoteAddr, hdrRealIP, hdrForwardedFor string) *http.Request {
h := http.Header{}
h["X-Real-Ip"] = []string{hdrRealIP}
h["X-Forwarded-For"] = []string{hdrForwardedFor}
return &http.Request{
RemoteAddr: remoteAddr,
Header: h,
}
}
remoteAddr := "144.12.54.87"
anotherRemoteAddr := "119.14.55.11"
localAddr := "127.0.0.0"
testData := []struct {
expected string
request *http.Request
}{
{remoteAddr, newRequest(remoteAddr, "", "")}, // no header
{remoteAddr, newRequest("", "", remoteAddr)}, // X-Forwarded-For: remoteAddr
{remoteAddr, newRequest("", remoteAddr, "")}, // X-RealIP: remoteAddr
// X-Forwarded-For: localAddr, remoteAddr, anotherRemoteAddr
{remoteAddr, newRequest("", "", strings.Join([]string{localAddr, remoteAddr, anotherRemoteAddr}, ", "))},
}
for _, v := range testData {
if actual := RealIP(v.request); v.expected != actual {
t.Errorf("expected %s but get %s", v.expected, actual)
}
}
}
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