package graph import ( "errors" "net" "net/http" "net/url" "time" "github.com/Sirupsen/logrus" "github.com/docker/distribution" "github.com/docker/distribution/digest" "github.com/docker/distribution/manifest" "github.com/docker/distribution/registry/client" "github.com/docker/distribution/registry/client/auth" "github.com/docker/distribution/registry/client/transport" "github.com/docker/docker/cliconfig" "github.com/docker/docker/registry" "golang.org/x/net/context" ) type dumbCredentialStore struct { auth *cliconfig.AuthConfig } func (dcs dumbCredentialStore) Basic(*url.URL) (string, string) { return dcs.auth.Username, dcs.auth.Password } // NewV2Repository returns a repository (v2 only). It creates a HTTP transport // providing timeout settings and authentication support, and also verifies the // remote API version. func NewV2Repository(repoInfo *registry.RepositoryInfo, endpoint registry.APIEndpoint, metaHeaders http.Header, authConfig *cliconfig.AuthConfig, actions ...string) (distribution.Repository, error) { ctx := context.Background() repoName := repoInfo.CanonicalName // If endpoint does not support CanonicalName, use the RemoteName instead if endpoint.TrimHostname { repoName = repoInfo.RemoteName } // TODO(dmcgowan): Call close idle connections when complete, use keep alive base := &http.Transport{ Proxy: http.ProxyFromEnvironment, Dial: (&net.Dialer{ Timeout: 30 * time.Second, KeepAlive: 30 * time.Second, DualStack: true, }).Dial, TLSHandshakeTimeout: 10 * time.Second, TLSClientConfig: endpoint.TLSConfig, // TODO(dmcgowan): Call close idle connections when complete and use keep alive DisableKeepAlives: true, } modifiers := registry.DockerHeaders(metaHeaders) authTransport := transport.NewTransport(base, modifiers...) pingClient := &http.Client{ Transport: authTransport, Timeout: 5 * time.Second, } endpointStr := endpoint.URL + "/v2/" req, err := http.NewRequest("GET", endpointStr, nil) if err != nil { return nil, err } resp, err := pingClient.Do(req) if err != nil { return nil, err } defer resp.Body.Close() versions := auth.APIVersions(resp, endpoint.VersionHeader) if endpoint.VersionHeader != "" && len(endpoint.Versions) > 0 { var foundVersion bool for _, version := range endpoint.Versions { for _, pingVersion := range versions { if version == pingVersion { foundVersion = true } } } if !foundVersion { return nil, errors.New("endpoint does not support v2 API") } } challengeManager := auth.NewSimpleChallengeManager() if err := challengeManager.AddResponse(resp); err != nil { return nil, err } creds := dumbCredentialStore{auth: authConfig} tokenHandler := auth.NewTokenHandler(authTransport, creds, repoName, actions...) basicHandler := auth.NewBasicHandler(creds) modifiers = append(modifiers, auth.NewAuthorizer(challengeManager, tokenHandler, basicHandler)) tr := transport.NewTransport(base, modifiers...) return client.NewRepository(ctx, repoName, endpoint.URL, tr) } func digestFromManifest(m *manifest.SignedManifest, localName string) (digest.Digest, int, error) { payload, err := m.Payload() if err != nil { logrus.Debugf("could not retrieve manifest payload: %v", err) return "", 0, err } manifestDigest, err := digest.FromBytes(payload) if err != nil { logrus.Infof("Could not compute manifest digest for %s:%s : %v", localName, m.Tag, err) } return manifestDigest, len(payload), nil }