github.com/kaisenlinux/docker.io@v0.0.0-20230510090727-ea55db55fac7/engine/distribution/registry_unit_test.go (about)

     1  package distribution // import "github.com/docker/docker/distribution"
     2  
     3  import (
     4  	"context"
     5  	"net/http"
     6  	"net/http/httptest"
     7  	"net/url"
     8  	"strings"
     9  	"testing"
    10  
    11  	"github.com/docker/distribution/reference"
    12  	"github.com/docker/docker/api/types"
    13  	registrytypes "github.com/docker/docker/api/types/registry"
    14  	"github.com/docker/docker/registry"
    15  	"github.com/sirupsen/logrus"
    16  )
    17  
    18  const secretRegistryToken = "mysecrettoken"
    19  
    20  type tokenPassThruHandler struct {
    21  	reached       bool
    22  	gotToken      bool
    23  	shouldSend401 func(url string) bool
    24  }
    25  
    26  func (h *tokenPassThruHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
    27  	h.reached = true
    28  	if strings.Contains(r.Header.Get("Authorization"), secretRegistryToken) {
    29  		logrus.Debug("Detected registry token in auth header")
    30  		h.gotToken = true
    31  	}
    32  	if h.shouldSend401 == nil || h.shouldSend401(r.RequestURI) {
    33  		w.Header().Set("WWW-Authenticate", `Bearer realm="foorealm"`)
    34  		w.WriteHeader(401)
    35  	}
    36  }
    37  
    38  func testTokenPassThru(t *testing.T, ts *httptest.Server) {
    39  	uri, err := url.Parse(ts.URL)
    40  	if err != nil {
    41  		t.Fatalf("could not parse url from test server: %v", err)
    42  	}
    43  
    44  	endpoint := registry.APIEndpoint{
    45  		Mirror:       false,
    46  		URL:          uri,
    47  		Version:      2,
    48  		Official:     false,
    49  		TrimHostname: false,
    50  		TLSConfig:    nil,
    51  	}
    52  	n, _ := reference.ParseNormalizedNamed("testremotename")
    53  	repoInfo := &registry.RepositoryInfo{
    54  		Name: n,
    55  		Index: &registrytypes.IndexInfo{
    56  			Name:     "testrepo",
    57  			Mirrors:  nil,
    58  			Secure:   false,
    59  			Official: false,
    60  		},
    61  		Official: false,
    62  	}
    63  	imagePullConfig := &ImagePullConfig{
    64  		Config: Config{
    65  			MetaHeaders: http.Header{},
    66  			AuthConfig: &types.AuthConfig{
    67  				RegistryToken: secretRegistryToken,
    68  			},
    69  		},
    70  		Schema2Types: ImageTypes,
    71  	}
    72  	puller, err := newPuller(endpoint, repoInfo, imagePullConfig, nil)
    73  	if err != nil {
    74  		t.Fatal(err)
    75  	}
    76  	p := puller.(*v2Puller)
    77  	ctx := context.Background()
    78  	p.repo, _, err = NewV2Repository(ctx, p.repoInfo, p.endpoint, p.config.MetaHeaders, p.config.AuthConfig, "pull")
    79  	if err != nil {
    80  		t.Fatal(err)
    81  	}
    82  
    83  	logrus.Debug("About to pull")
    84  	// We expect it to fail, since we haven't mock'd the full registry exchange in our handler above
    85  	tag, _ := reference.WithTag(n, "tag_goes_here")
    86  	_ = p.pullV2Repository(ctx, tag, nil)
    87  }
    88  
    89  func TestTokenPassThru(t *testing.T) {
    90  	handler := &tokenPassThruHandler{shouldSend401: func(url string) bool { return url == "/v2/" }}
    91  	ts := httptest.NewServer(handler)
    92  	defer ts.Close()
    93  
    94  	testTokenPassThru(t, ts)
    95  
    96  	if !handler.reached {
    97  		t.Fatal("Handler not reached")
    98  	}
    99  	if !handler.gotToken {
   100  		t.Fatal("Failed to receive registry token")
   101  	}
   102  }
   103  
   104  func TestTokenPassThruDifferentHost(t *testing.T) {
   105  	handler := new(tokenPassThruHandler)
   106  	ts := httptest.NewServer(handler)
   107  	defer ts.Close()
   108  
   109  	tsredirect := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
   110  		if r.RequestURI == "/v2/" {
   111  			w.Header().Set("WWW-Authenticate", `Bearer realm="foorealm"`)
   112  			w.WriteHeader(401)
   113  			return
   114  		}
   115  		http.Redirect(w, r, ts.URL+r.URL.Path, http.StatusMovedPermanently)
   116  	}))
   117  	defer tsredirect.Close()
   118  
   119  	testTokenPassThru(t, tsredirect)
   120  
   121  	if !handler.reached {
   122  		t.Fatal("Handler not reached")
   123  	}
   124  	if handler.gotToken {
   125  		t.Fatal("Redirect should not forward Authorization header to another host")
   126  	}
   127  }