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package limiter_test
import (
"fmt"
"net"
"net/http"
"net/url"
"testing"
"github.com/stretchr/testify/require"
"github.com/ulule/limiter/v3"
)
func TestGetIP(t *testing.T) {
is := require.New(t)
limiter1 := New(limiter.WithTrustForwardHeader(false))
limiter2 := New(limiter.WithTrustForwardHeader(true))
limiter3 := New(limiter.WithIPv4Mask(net.CIDRMask(24, 32)))
limiter4 := New(limiter.WithIPv6Mask(net.CIDRMask(48, 128)))
request1 := &http.Request{
URL: &url.URL{Path: "/"},
Header: http.Header{},
RemoteAddr: "8.8.8.8:8888",
}
request2 := &http.Request{
URL: &url.URL{Path: "/foo"},
Header: http.Header{},
RemoteAddr: "8.8.8.8:8888",
}
request2.Header.Add("X-Forwarded-For", "9.9.9.9, 7.7.7.7, 6.6.6.6")
request3 := &http.Request{
URL: &url.URL{Path: "/bar"},
Header: http.Header{},
RemoteAddr: "8.8.8.8:8888",
}
request3.Header.Add("X-Real-IP", "6.6.6.6")
request4 := &http.Request{
URL: &url.URL{Path: "/"},
Header: http.Header{},
RemoteAddr: "[2001:db8:cafe:1234:beef::fafa]:8888",
}
scenarios := []struct {
request *http.Request
limiter *limiter.Limiter
expected net.IP
}{
{
//
// Scenario #1 : RemoteAddr without proxy.
//
request: request1,
limiter: limiter1,
expected: net.ParseIP("8.8.8.8").To4(),
},
{
//
// Scenario #2 : X-Forwarded-For without proxy.
//
request: request2,
limiter: limiter1,
expected: net.ParseIP("8.8.8.8").To4(),
},
{
//
// Scenario #3 : X-Real-IP without proxy.
//
request: request3,
limiter: limiter1,
expected: net.ParseIP("8.8.8.8").To4(),
},
{
//
// Scenario #4 : RemoteAddr with proxy.
//
request: request1,
limiter: limiter2,
expected: net.ParseIP("8.8.8.8").To4(),
},
{
//
// Scenario #5 : X-Forwarded-For with proxy.
//
request: request2,
limiter: limiter2,
expected: net.ParseIP("9.9.9.9").To4(),
},
{
//
// Scenario #6 : X-Real-IP with proxy.
//
request: request3,
limiter: limiter2,
expected: net.ParseIP("6.6.6.6").To4(),
},
{
//
// Scenario #7 : IPv4 with mask.
//
request: request1,
limiter: limiter3,
expected: net.ParseIP("8.8.8.0").To4(),
},
{
//
// Scenario #8 : IPv6 with mask.
//
request: request4,
limiter: limiter4,
expected: net.ParseIP("2001:db8:cafe::").To16(),
},
}
for i, scenario := range scenarios {
message := fmt.Sprintf("Scenario #%d", (i + 1))
ip := scenario.limiter.GetIPWithMask(scenario.request)
is.Equal(scenario.expected, ip, message)
}
}
func TestGetIPKey(t *testing.T) {
is := require.New(t)
limiter1 := New(limiter.WithTrustForwardHeader(false))
limiter2 := New(limiter.WithTrustForwardHeader(true))
limiter3 := New(limiter.WithIPv4Mask(net.CIDRMask(24, 32)))
limiter4 := New(limiter.WithIPv6Mask(net.CIDRMask(48, 128)))
request1 := &http.Request{
URL: &url.URL{Path: "/"},
Header: http.Header{},
RemoteAddr: "8.8.8.8:8888",
}
request2 := &http.Request{
URL: &url.URL{Path: "/foo"},
Header: http.Header{},
RemoteAddr: "8.8.8.8:8888",
}
request2.Header.Add("X-Forwarded-For", "9.9.9.9, 7.7.7.7, 6.6.6.6")
request3 := &http.Request{
URL: &url.URL{Path: "/bar"},
Header: http.Header{},
RemoteAddr: "8.8.8.8:8888",
}
request3.Header.Add("X-Real-IP", "6.6.6.6")
request4 := &http.Request{
URL: &url.URL{Path: "/"},
Header: http.Header{},
RemoteAddr: "[2001:db8:cafe:1234:beef::fafa]:8888",
}
scenarios := []struct {
request *http.Request
limiter *limiter.Limiter
expected string
}{
{
//
// Scenario #1 : RemoteAddr without proxy.
//
request: request1,
limiter: limiter1,
expected: "8.8.8.8",
},
{
//
// Scenario #2 : X-Forwarded-For without proxy.
//
request: request2,
limiter: limiter1,
expected: "8.8.8.8",
},
{
//
// Scenario #3 : X-Real-IP without proxy.
//
request: request3,
limiter: limiter1,
expected: "8.8.8.8",
},
{
//
// Scenario #4 : RemoteAddr without proxy.
//
request: request1,
limiter: limiter2,
expected: "8.8.8.8",
},
{
//
// Scenario #5 : X-Forwarded-For without proxy.
//
request: request2,
limiter: limiter2,
expected: "9.9.9.9",
},
{
//
// Scenario #6 : X-Real-IP without proxy.
//
request: request3,
limiter: limiter2,
expected: "6.6.6.6",
},
{
//
// Scenario #7 : IPv4 with mask.
//
request: request1,
limiter: limiter3,
expected: "8.8.8.0",
},
{
//
// Scenario #8 : IPv6 with mask.
//
request: request4,
limiter: limiter4,
expected: "2001:db8:cafe::",
},
}
for i, scenario := range scenarios {
message := fmt.Sprintf("Scenario #%d", (i + 1))
key := scenario.limiter.GetIPKey(scenario.request)
is.Equal(scenario.expected, key, message)
}
}
|
