// PingV2Registry attempts to ping a v2 registry and on success return a
// challenge manager for the supported authentication types and
// whether v2 was confirmed by the response. If a response is received but
// cannot be interpreted a PingResponseError will be returned.
func PingV2Registry(endpoint *url.URL, transport http.RoundTripper) (challenge.Manager, bool, error) {
var (
foundV2 = false
v2Version = auth.APIVersion{
Type: "registry",
Version: "2.0",
}
)
pingClient := &http.Client{
Transport: transport,
Timeout: 15 * time.Second,
}
endpointStr := strings.TrimRight(endpoint.String(), "/") + "/v2/"
req, err := http.NewRequest("GET", endpointStr, nil)
if err != nil {
return nil, false, err
}
resp, err := pingClient.Do(req)
if err != nil {
return nil, false, err
}
defer resp.Body.Close()
versions := auth.APIVersions(resp, DefaultRegistryVersionHeader)
for _, pingVersion := range versions {
if pingVersion == v2Version {
// The version header indicates we're definitely
// talking to a v2 registry. So don't allow future
// fallbacks to the v1 protocol.
foundV2 = true
break
}
}
challengeManager := challenge.NewSimpleManager()
if err := challengeManager.AddResponse(resp); err != nil {
return nil, foundV2, PingResponseError{
Err: err,
}
}
return challengeManager, foundV2, nil
}
// GetNotaryRepository returns a NotaryRepository which stores all the
// information needed to operate on a notary repository.
// It creates an HTTP transport providing authentication support.
func GetNotaryRepository(streams command.Streams, repoInfo *registry.RepositoryInfo, authConfig types.AuthConfig, actions ...string) (*client.NotaryRepository, error) {
server, err := Server(repoInfo.Index)
if err != nil {
return nil, err
}
var cfg = tlsconfig.ClientDefault()
cfg.InsecureSkipVerify = !repoInfo.Index.Secure
// Get certificate base directory
certDir, err := certificateDirectory(server)
if err != nil {
return nil, err
}
logrus.Debugf("reading certificate directory: %s", certDir)
if err := registry.ReadCertsDirectory(cfg, certDir); err != nil {
return nil, err
}
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: cfg,
DisableKeepAlives: true,
}
// Skip configuration headers since request is not going to Docker daemon
modifiers := registry.DockerHeaders(command.UserAgent(), http.Header{})
authTransport := transport.NewTransport(base, modifiers...)
pingClient := &http.Client{
Transport: authTransport,
Timeout: 5 * time.Second,
}
endpointStr := server + "/v2/"
req, err := http.NewRequest("GET", endpointStr, nil)
if err != nil {
return nil, err
}
challengeManager := challenge.NewSimpleManager()
resp, err := pingClient.Do(req)
if err != nil {
// Ignore error on ping to operate in offline mode
logrus.Debugf("Error pinging notary server %q: %s", endpointStr, err)
} else {
defer resp.Body.Close()
// Add response to the challenge manager to parse out
// authentication header and register authentication method
if err := challengeManager.AddResponse(resp); err != nil {
return nil, err
}
}
scope := auth.RepositoryScope{
Repository: repoInfo.FullName(),
Actions: actions,
Class: repoInfo.Class,
}
creds := simpleCredentialStore{auth: authConfig}
tokenHandlerOptions := auth.TokenHandlerOptions{
Transport: authTransport,
Credentials: creds,
Scopes: []auth.Scope{scope},
ClientID: registry.AuthClientID,
}
tokenHandler := auth.NewTokenHandlerWithOptions(tokenHandlerOptions)
basicHandler := auth.NewBasicHandler(creds)
modifiers = append(modifiers, transport.RequestModifier(auth.NewAuthorizer(challengeManager, tokenHandler, basicHandler)))
tr := transport.NewTransport(base, modifiers...)
return client.NewNotaryRepository(
trustDirectory(),
repoInfo.FullName(),
server,
tr,
getPassphraseRetriever(streams),
trustpinning.TrustPinConfig{})
}