distribution/registry/handlers/app_test.go

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package handlers
import (
"encoding/json"
"net/http"
"net/http/httptest"
"net/url"
"reflect"
"testing"
"github.com/docker/distribution/configuration"
"github.com/docker/distribution/context"
"github.com/docker/distribution/registry/api/errcode"
v2 "github.com/docker/distribution/registry/api/v2"
"github.com/docker/distribution/registry/auth"
_ "github.com/docker/distribution/registry/auth/silly"
"github.com/docker/distribution/registry/storage"
memorycache "github.com/docker/distribution/registry/storage/cache/memory"
"github.com/docker/distribution/registry/storage/driver/testdriver"
)
// TestAppDispatcher builds an application with a test dispatcher and ensures
// that requests are properly dispatched and the handlers are constructed.
// This only tests the dispatch mechanism. The underlying dispatchers must be
// tested individually.
func TestAppDispatcher(t *testing.T) {
driver := testdriver.New()
ctx := context.Background()
registry, err := storage.NewRegistry(ctx, driver, storage.BlobDescriptorCacheProvider(memorycache.NewInMemoryBlobDescriptorCacheProvider()), storage.EnableDelete, storage.EnableRedirect)
if err != nil {
t.Fatalf("error creating registry: %v", err)
}
app := &App{
Config: &configuration.Configuration{},
Context: ctx,
router: v2.Router(),
driver: driver,
registry: registry,
}
server := httptest.NewServer(app)
defer server.Close()
router := v2.Router()
serverURL, err := url.Parse(server.URL)
if err != nil {
t.Fatalf("error parsing server url: %v", err)
}
varCheckingDispatcher := func(expectedVars map[string]string) dispatchFunc {
return func(ctx *Context, r *http.Request) http.Handler {
// Always checks the same name context
if ctx.Repository.Named().Name() != getName(ctx) {
t.Fatalf("unexpected name: %q != %q", ctx.Repository.Named().Name(), "foo/bar")
}
// Check that we have all that is expected
for expectedK, expectedV := range expectedVars {
if ctx.Value(expectedK) != expectedV {
t.Fatalf("unexpected %s in context vars: %q != %q", expectedK, ctx.Value(expectedK), expectedV)
}
}
// Check that we only have variables that are expected
for k, v := range ctx.Value("vars").(map[string]string) {
_, ok := expectedVars[k]
if !ok { // name is checked on context
// We have an unexpected key, fail
t.Fatalf("unexpected key %q in vars with value %q", k, v)
}
}
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusOK)
})
}
}
// unflatten a list of variables, suitable for gorilla/mux, to a map[string]string
unflatten := func(vars []string) map[string]string {
m := make(map[string]string)
for i := 0; i < len(vars)-1; i = i + 2 {
m[vars[i]] = vars[i+1]
}
return m
}
for _, testcase := range []struct {
endpoint string
vars []string
}{
{
endpoint: v2.RouteNameManifest,
vars: []string{
"name", "foo/bar",
"reference", "sometag",
},
},
{
endpoint: v2.RouteNameTags,
vars: []string{
"name", "foo/bar",
},
},
{
endpoint: v2.RouteNameBlobUpload,
vars: []string{
"name", "foo/bar",
},
},
{
endpoint: v2.RouteNameBlobUploadChunk,
vars: []string{
"name", "foo/bar",
"uuid", "theuuid",
},
},
} {
app.register(testcase.endpoint, varCheckingDispatcher(unflatten(testcase.vars)))
route := router.GetRoute(testcase.endpoint).Host(serverURL.Host)
u, err := route.URL(testcase.vars...)
if err != nil {
t.Fatal(err)
}
resp, err := http.Get(u.String())
if err != nil {
t.Fatal(err)
}
if resp.StatusCode != http.StatusOK {
t.Fatalf("unexpected status code: %v != %v", resp.StatusCode, http.StatusOK)
}
}
}
// TestNewApp covers the creation of an application via NewApp with a
// configuration.
func TestNewApp(t *testing.T) {
ctx := context.Background()
config := configuration.Configuration{
Storage: configuration.Storage{
"testdriver": nil,
"maintenance": configuration.Parameters{"uploadpurging": map[interface{}]interface{}{
"enabled": false,
}},
},
Auth: configuration.Auth{
// For now, we simply test that new auth results in a viable
// application.
"silly": {
"realm": "realm-test",
"service": "service-test",
},
},
}
// Mostly, with this test, given a sane configuration, we are simply
// ensuring that NewApp doesn't panic. We might want to tweak this
// behavior.
app := NewApp(ctx, &config)
server := httptest.NewServer(app)
defer server.Close()
builder, err := v2.NewURLBuilderFromString(server.URL, false)
if err != nil {
t.Fatalf("error creating urlbuilder: %v", err)
}
baseURL, err := builder.BuildBaseURL()
if err != nil {
t.Fatalf("error creating baseURL: %v", err)
}
// TODO(stevvooe): The rest of this test might belong in the API tests.
// Just hit the app and make sure we get a 401 Unauthorized error.
req, err := http.Get(baseURL)
if err != nil {
t.Fatalf("unexpected error during GET: %v", err)
}
defer req.Body.Close()
if req.StatusCode != http.StatusUnauthorized {
t.Fatalf("unexpected status code during request: %v", err)
}
if req.Header.Get("Content-Type") != "application/json" {
t.Fatalf("unexpected content-type: %v != %v", req.Header.Get("Content-Type"), "application/json")
}
expectedAuthHeader := "Bearer realm=\"realm-test\",service=\"service-test\""
if e, a := expectedAuthHeader, req.Header.Get("WWW-Authenticate"); e != a {
t.Fatalf("unexpected WWW-Authenticate header: %q != %q", e, a)
}
var errs errcode.Errors
dec := json.NewDecoder(req.Body)
if err := dec.Decode(&errs); err != nil {
t.Fatalf("error decoding error response: %v", err)
}
err2, ok := errs[0].(errcode.ErrorCoder)
if !ok {
t.Fatalf("not an ErrorCoder: %#v", errs[0])
}
if err2.ErrorCode() != errcode.ErrorCodeUnauthorized {
t.Fatalf("unexpected error code: %v != %v", err2.ErrorCode(), errcode.ErrorCodeUnauthorized)
}
}
// Test the access record accumulator
func TestAppendAccessRecords(t *testing.T) {
repo := "testRepo"
expectedResource := auth.Resource{
Type: "repository",
Name: repo,
}
expectedPullRecord := auth.Access{
Resource: expectedResource,
Action: "pull",
}
expectedPushRecord := auth.Access{
Resource: expectedResource,
Action: "push",
}
expectedDeleteRecord := auth.Access{
Resource: expectedResource,
Action: "delete",
}
records := []auth.Access{}
result := appendAccessRecords(records, "GET", repo)
expectedResult := []auth.Access{expectedPullRecord}
if ok := reflect.DeepEqual(result, expectedResult); !ok {
t.Fatalf("Actual access record differs from expected")
}
records = []auth.Access{}
result = appendAccessRecords(records, "HEAD", repo)
expectedResult = []auth.Access{expectedPullRecord}
if ok := reflect.DeepEqual(result, expectedResult); !ok {
t.Fatalf("Actual access record differs from expected")
}
records = []auth.Access{}
result = appendAccessRecords(records, "POST", repo)
expectedResult = []auth.Access{expectedPullRecord, expectedPushRecord}
if ok := reflect.DeepEqual(result, expectedResult); !ok {
t.Fatalf("Actual access record differs from expected")
}
records = []auth.Access{}
result = appendAccessRecords(records, "PUT", repo)
expectedResult = []auth.Access{expectedPullRecord, expectedPushRecord}
if ok := reflect.DeepEqual(result, expectedResult); !ok {
t.Fatalf("Actual access record differs from expected")
}
records = []auth.Access{}
result = appendAccessRecords(records, "PATCH", repo)
expectedResult = []auth.Access{expectedPullRecord, expectedPushRecord}
if ok := reflect.DeepEqual(result, expectedResult); !ok {
t.Fatalf("Actual access record differs from expected")
}
records = []auth.Access{}
result = appendAccessRecords(records, "DELETE", repo)
expectedResult = []auth.Access{expectedDeleteRecord}
if ok := reflect.DeepEqual(result, expectedResult); !ok {
t.Fatalf("Actual access record differs from expected")
}
}