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package main
import (
"context"
"fmt"
"net/http"
"net/http/httptest"
"regexp"
"testing"
"gitlab.com/gitlab-org/labkit/correlation"
"github.com/golang-jwt/jwt/v5"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"gitlab.com/gitlab-org/gitlab/workhorse/internal/api"
"gitlab.com/gitlab-org/gitlab/workhorse/internal/helper"
"gitlab.com/gitlab-org/gitlab/workhorse/internal/secret"
"gitlab.com/gitlab-org/gitlab/workhorse/internal/testhelper"
"gitlab.com/gitlab-org/gitlab/workhorse/internal/upstream/roundtripper"
)
func okHandler(w http.ResponseWriter, _ *http.Request, _ *api.Response) {
w.WriteHeader(201)
fmt.Fprint(w, "{\"status\":\"ok\"}")
}
func runPreAuthorizeHandler(t *testing.T, ts *httptest.Server, suffix string, url *regexp.Regexp, apiResponse interface{}, returnCode, expectedCode int) {
if ts == nil {
ts = testAuthServer(t, url, nil, returnCode, apiResponse)
}
// Create http request
ctx := correlation.ContextWithCorrelation(context.Background(), "12345678")
httpRequest, err := http.NewRequestWithContext(ctx, "GET", "/address", nil)
require.NoError(t, err)
parsedURL := helper.URLMustParse(ts.URL)
testhelper.ConfigureSecret()
a := api.NewAPI(parsedURL, "123", roundtripper.NewTestBackendRoundTripper(parsedURL))
response := httptest.NewRecorder()
a.PreAuthorizeHandler(okHandler, suffix).ServeHTTP(response, httpRequest)
require.Equal(t, expectedCode, response.Code)
}
func TestPreAuthorizeHappyPath(t *testing.T) {
runPreAuthorizeHandler(
t, nil, "/authorize",
regexp.MustCompile(`/authorize\z`),
&api.Response{},
200, 201)
}
func TestPreAuthorizeSuffix(t *testing.T) {
runPreAuthorizeHandler(
t, nil, "/different-authorize",
regexp.MustCompile(`/authorize\z`),
&api.Response{},
200, 404)
}
func TestPreAuthorizeJsonFailure(t *testing.T) {
runPreAuthorizeHandler(
t, nil, "/authorize",
regexp.MustCompile(`/authorize\z`),
"not-json",
200, 500)
}
func TestPreAuthorizeContentTypeFailure(t *testing.T) {
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
_, err := w.Write([]byte(`{"hello":"world"}`))
assert.NoError(t, err, "write auth response")
}))
defer ts.Close()
runPreAuthorizeHandler(
t, ts, "/authorize",
regexp.MustCompile(`/authorize\z`),
"",
200, 200)
}
func TestPreAuthorizeRedirect(t *testing.T) {
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
http.Redirect(w, r, "/", http.StatusMovedPermanently)
}))
defer ts.Close()
runPreAuthorizeHandler(t, ts, "/willredirect",
regexp.MustCompile(`/willredirect\z`),
"",
301, 301)
}
func TestPreAuthorizeJWT(t *testing.T) {
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
token, err := jwt.Parse(r.Header.Get(secret.RequestHeader), func(token *jwt.Token) (interface{}, error) {
// Don't forget to validate the alg is what you expect:
if _, ok := token.Method.(*jwt.SigningMethodHMAC); !ok {
return nil, fmt.Errorf("Unexpected signing method: %v", token.Header["alg"])
}
testhelper.ConfigureSecret()
secretBytes, err := secret.Bytes()
if err != nil {
return nil, fmt.Errorf("read secret from file: %v", err)
}
return secretBytes, nil
})
assert.NoError(t, err, "decode token")
claims, ok := token.Claims.(jwt.MapClaims)
assert.True(t, ok, "claims cast")
assert.True(t, token.Valid, "JWT token valid")
assert.Equal(t, "gitlab-workhorse", claims["iss"], "JWT token issuer")
w.Header().Set("Content-Type", api.ResponseContentType)
_, err = w.Write([]byte(`{"hello":"world"}`))
assert.NoError(t, err, "write auth response")
}))
defer ts.Close()
runPreAuthorizeHandler(
t, ts, "/authorize",
regexp.MustCompile(`/authorize\z`),
"",
200, 201)
}
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