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package main
import (
"bytes"
"fmt"
"io"
"net"
"net/http"
"net/http/httptest"
"regexp"
"strings"
"testing"
"time"
"gitlab.com/gitlab-org/gitlab-workhorse/internal/badgateway"
"gitlab.com/gitlab-org/gitlab-workhorse/internal/helper"
"gitlab.com/gitlab-org/gitlab-workhorse/internal/proxy"
"gitlab.com/gitlab-org/gitlab-workhorse/internal/testhelper"
"gitlab.com/gitlab-org/gitlab-workhorse/internal/upstream/roundtripper"
)
const testVersion = "123"
func newProxy(url string, rt http.RoundTripper) *proxy.Proxy {
parsedURL := helper.URLMustParse(url)
if rt == nil {
rt = roundtripper.NewTestBackendRoundTripper(parsedURL)
}
return proxy.NewProxy(parsedURL, testVersion, rt)
}
func TestProxyRequest(t *testing.T) {
ts := testhelper.TestServerWithHandler(regexp.MustCompile(`/url/path\z`), func(w http.ResponseWriter, r *http.Request) {
if r.Method != "POST" {
t.Fatal("Expected POST request")
}
if r.Header.Get("Custom-Header") != "test" {
t.Fatal("Missing custom header")
}
if h := r.Header.Get("Gitlab-Workhorse"); h != testVersion {
t.Fatalf("Missing GitLab-Workhorse header: want %q, got %q", testVersion, h)
}
if h := r.Header.Get("Gitlab-Workhorse-Proxy-Start"); !strings.HasPrefix(h, "1") {
t.Fatalf("Expect Gitlab-Workhorse-Proxy-Start to start with 1, got %q", h)
}
var body bytes.Buffer
io.Copy(&body, r.Body)
if body.String() != "REQUEST" {
t.Fatal("Expected REQUEST in request body")
}
w.Header().Set("Custom-Response-Header", "test")
w.WriteHeader(202)
fmt.Fprint(w, "RESPONSE")
})
httpRequest, err := http.NewRequest("POST", ts.URL+"/url/path", bytes.NewBufferString("REQUEST"))
if err != nil {
t.Fatal(err)
}
httpRequest.Header.Set("Custom-Header", "test")
w := httptest.NewRecorder()
newProxy(ts.URL, nil).ServeHTTP(w, httpRequest)
testhelper.AssertResponseCode(t, w, 202)
testhelper.AssertResponseBody(t, w, "RESPONSE")
if w.Header().Get("Custom-Response-Header") != "test" {
t.Fatal("Expected custom response header")
}
}
func TestProxyError(t *testing.T) {
httpRequest, err := http.NewRequest("POST", "/url/path", bytes.NewBufferString("REQUEST"))
if err != nil {
t.Fatal(err)
}
httpRequest.Header.Set("Custom-Header", "test")
w := httptest.NewRecorder()
newProxy("http://localhost:655575/", nil).ServeHTTP(w, httpRequest)
testhelper.AssertResponseCode(t, w, 502)
testhelper.AssertResponseBodyRegexp(t, w, regexp.MustCompile("dial tcp:.*invalid port.*"))
}
func TestProxyReadTimeout(t *testing.T) {
ts := testhelper.TestServerWithHandler(nil, func(w http.ResponseWriter, r *http.Request) {
time.Sleep(time.Minute)
})
httpRequest, err := http.NewRequest("POST", "http://localhost/url/path", nil)
if err != nil {
t.Fatal(err)
}
rt := badgateway.NewRoundTripper(false, &http.Transport{
Proxy: http.ProxyFromEnvironment,
Dial: (&net.Dialer{
Timeout: 30 * time.Second,
KeepAlive: 30 * time.Second,
}).Dial,
TLSHandshakeTimeout: 10 * time.Second,
ResponseHeaderTimeout: time.Millisecond,
})
p := newProxy(ts.URL, rt)
w := httptest.NewRecorder()
p.ServeHTTP(w, httpRequest)
testhelper.AssertResponseCode(t, w, 502)
testhelper.AssertResponseBody(t, w, "GitLab is not responding")
}
func TestProxyHandlerTimeout(t *testing.T) {
ts := testhelper.TestServerWithHandler(nil,
http.TimeoutHandler(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
time.Sleep(time.Second)
}), time.Millisecond, "Request took too long").ServeHTTP,
)
httpRequest, err := http.NewRequest("POST", "http://localhost/url/path", nil)
if err != nil {
t.Fatal(err)
}
w := httptest.NewRecorder()
newProxy(ts.URL, nil).ServeHTTP(w, httpRequest)
testhelper.AssertResponseCode(t, w, 503)
testhelper.AssertResponseBody(t, w, "Request took too long")
}
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