/
realip_test.go
91 lines (70 loc) · 2.31 KB
/
realip_test.go
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package realip_test
import (
"fmt"
"net/http"
"net/http/httptest"
"testing"
"github.com/bakins/go-real-ip"
h "github.com/bakins/test-helpers"
)
func TestNew(t *testing.T) {
_, err := realip.New([]string{"X-Forwarded-For"}, []string{"127.0.0.0/8"})
h.Ok(t, err)
}
func TestNewFail(t *testing.T) {
_, err := realip.New([]string{"X-Forwarded-For"}, []string{"0.0/8"})
h.Assert(t, err != nil, "new should fail")
}
func newRequest(method, url string, remoteAddr, xff string) *http.Request {
r, err := http.NewRequest(method, url, nil)
if err != nil {
panic(err)
}
r.RemoteAddr = remoteAddr
r.Header.Set("X-Forwarded-For", xff)
return r
}
func TestHandlerPass(t *testing.T) {
handler := http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
w.WriteHeader(200)
fmt.Fprint(w, "Hello World\n")
})
ri, err := realip.New([]string{"X-Forwarded-For"}, []string{"8.8.0.0/16"})
h.Ok(t, err)
request := newRequest("GET", "/foo", "8.8.8.8:9876", "64.63.62.61")
recorder := httptest.NewRecorder()
riHandler := ri.Handler(handler)
riHandler.ServeHTTP(recorder, request)
h.Equals(t, 200, recorder.Code)
h.Equals(t, "64.63.62.61:9876", request.RemoteAddr)
}
// probably need a test setup helper, but just copy paste for now
func TestHandlerFail(t *testing.T) {
handler := http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
w.WriteHeader(200)
fmt.Fprint(w, "Hello World\n")
})
ri, err := realip.New([]string{"X-Forwarded-For"}, []string{"8.8.0.0/16"})
h.Ok(t, err)
request := newRequest("GET", "/foo", "9.8.8.8:9876", "64.63.62.61")
recorder := httptest.NewRecorder()
riHandler := ri.Handler(handler)
riHandler.ServeHTTP(recorder, request)
h.Equals(t, 200, recorder.Code)
h.Equals(t, "9.8.8.8:9876", request.RemoteAddr)
}
func ExampleNew() {
// simple handler
http.HandleFunc("/hello", func(w http.ResponseWriter, r *http.Request) {
// realip will rewrite RemoteAddr
fmt.Fprintf(w, "Hello: %s\n", r.RemoteAddr)
})
// we only will rewrite RemoteAddr if connection is from our "trusted" loadbalancers
// we allow localhost for testing
ri, err := realip.New([]string{"X-Forwarded-For", "X-Real-IP"}, []string{"8.8.0.0/16", "127.0.0.0/8"})
if err != nil {
// do something with error
}
// this wraps all HTTP requests
http.ListenAndServe(":8080", ri.Handler(http.DefaultServeMux))
}