package distribution import ( "net/http" "net/http/httptest" "net/url" "strings" "testing" "github.com/docker/distribution/reference" "github.com/docker/docker/api/types" registrytypes "github.com/docker/docker/api/types/registry" "github.com/docker/docker/registry" "github.com/sirupsen/logrus" "golang.org/x/net/context" ) const secretRegistryToken = "mysecrettoken" type tokenPassThruHandler struct { reached bool gotToken bool shouldSend401 func(url string) bool } func (h *tokenPassThruHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) { h.reached = true if strings.Contains(r.Header.Get("Authorization"), secretRegistryToken) { logrus.Debug("Detected registry token in auth header") h.gotToken = true } if h.shouldSend401 == nil || h.shouldSend401(r.RequestURI) { w.Header().Set("WWW-Authenticate", `Bearer realm="foorealm"`) w.WriteHeader(401) } } func testTokenPassThru(t *testing.T, ts *httptest.Server) { uri, err := url.Parse(ts.URL) if err != nil { t.Fatalf("could not parse url from test server: %v", err) } endpoint := registry.APIEndpoint{ Mirror: false, URL: uri, Version: 2, Official: false, TrimHostname: false, TLSConfig: nil, } n, _ := reference.ParseNormalizedNamed("testremotename") repoInfo := ®istry.RepositoryInfo{ Name: n, Index: ®istrytypes.IndexInfo{ Name: "testrepo", Mirrors: nil, Secure: false, Official: false, }, Official: false, } imagePullConfig := &ImagePullConfig{ Config: Config{ MetaHeaders: http.Header{}, AuthConfig: &types.AuthConfig{ RegistryToken: secretRegistryToken, }, }, Schema2Types: ImageTypes, } puller, err := newPuller(endpoint, repoInfo, imagePullConfig) if err != nil { t.Fatal(err) } p := puller.(*v2Puller) ctx := context.Background() p.repo, _, err = NewV2Repository(ctx, p.repoInfo, p.endpoint, p.config.MetaHeaders, p.config.AuthConfig, "pull") if err != nil { t.Fatal(err) } logrus.Debug("About to pull") // We expect it to fail, since we haven't mock'd the full registry exchange in our handler above tag, _ := reference.WithTag(n, "tag_goes_here") _ = p.pullV2Repository(ctx, tag) } func TestTokenPassThru(t *testing.T) { handler := &tokenPassThruHandler{shouldSend401: func(url string) bool { return url == "/v2/" }} ts := httptest.NewServer(handler) defer ts.Close() testTokenPassThru(t, ts) if !handler.reached { t.Fatal("Handler not reached") } if !handler.gotToken { t.Fatal("Failed to receive registry token") } } func TestTokenPassThruDifferentHost(t *testing.T) { handler := new(tokenPassThruHandler) ts := httptest.NewServer(handler) defer ts.Close() tsredirect := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { if r.RequestURI == "/v2/" { w.Header().Set("WWW-Authenticate", `Bearer realm="foorealm"`) w.WriteHeader(401) return } http.Redirect(w, r, ts.URL+r.URL.Path, http.StatusMovedPermanently) })) defer tsredirect.Close() testTokenPassThru(t, tsredirect) if !handler.reached { t.Fatal("Handler not reached") } if handler.gotToken { t.Fatal("Redirect should not forward Authorization header to another host") } }