traefik/old/middlewares/forwardedheaders/forwarded_header_test.go

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package forwardedheaders
import (
"net/http"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestServeHTTP(t *testing.T) {
testCases := []struct {
desc string
insecure bool
trustedIps []string
incomingHeaders map[string]string
remoteAddr string
expectedHeaders map[string]string
}{
{
desc: "all Empty",
insecure: true,
trustedIps: nil,
remoteAddr: "",
incomingHeaders: map[string]string{},
expectedHeaders: map[string]string{
"X-Forwarded-for": "",
},
},
{
desc: "insecure true with incoming X-Forwarded-For",
insecure: true,
trustedIps: nil,
remoteAddr: "",
incomingHeaders: map[string]string{
"X-Forwarded-for": "10.0.1.0, 10.0.1.12",
},
expectedHeaders: map[string]string{
"X-Forwarded-for": "10.0.1.0, 10.0.1.12",
},
},
{
desc: "insecure false with incoming X-Forwarded-For",
insecure: false,
trustedIps: nil,
remoteAddr: "",
incomingHeaders: map[string]string{
"X-Forwarded-for": "10.0.1.0, 10.0.1.12",
},
expectedHeaders: map[string]string{
"X-Forwarded-for": "",
},
},
{
desc: "insecure false with incoming X-Forwarded-For and valid Trusted Ips",
insecure: false,
trustedIps: []string{"10.0.1.100"},
remoteAddr: "10.0.1.100:80",
incomingHeaders: map[string]string{
"X-Forwarded-for": "10.0.1.0, 10.0.1.12",
},
expectedHeaders: map[string]string{
"X-Forwarded-for": "10.0.1.0, 10.0.1.12",
},
},
{
desc: "insecure false with incoming X-Forwarded-For and invalid Trusted Ips",
insecure: false,
trustedIps: []string{"10.0.1.100"},
remoteAddr: "10.0.1.101:80",
incomingHeaders: map[string]string{
"X-Forwarded-for": "10.0.1.0, 10.0.1.12",
},
expectedHeaders: map[string]string{
"X-Forwarded-for": "",
},
},
{
desc: "insecure false with incoming X-Forwarded-For and valid Trusted Ips CIDR",
insecure: false,
trustedIps: []string{"1.2.3.4/24"},
remoteAddr: "1.2.3.156:80",
incomingHeaders: map[string]string{
"X-Forwarded-for": "10.0.1.0, 10.0.1.12",
},
expectedHeaders: map[string]string{
"X-Forwarded-for": "10.0.1.0, 10.0.1.12",
},
},
{
desc: "insecure false with incoming X-Forwarded-For and invalid Trusted Ips CIDR",
insecure: false,
trustedIps: []string{"1.2.3.4/24"},
remoteAddr: "10.0.1.101:80",
incomingHeaders: map[string]string{
"X-Forwarded-for": "10.0.1.0, 10.0.1.12",
},
expectedHeaders: map[string]string{
"X-Forwarded-for": "",
},
},
}
for _, test := range testCases {
test := test
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
req, err := http.NewRequest(http.MethodGet, "", nil)
require.NoError(t, err)
req.RemoteAddr = test.remoteAddr
for k, v := range test.incomingHeaders {
req.Header.Set(k, v)
}
m, err := NewXforwarded(test.insecure, test.trustedIps)
require.NoError(t, err)
m.ServeHTTP(nil, req, nil)
for k, v := range test.expectedHeaders {
assert.Equal(t, v, req.Header.Get(k))
}
})
}
}