func (bs *blobStatter) Clear(ctx context.Context, dgst digest.Digest) error {
ref, err := reference.WithDigest(bs.name, dgst)
if err != nil {
return err
}
blobURL, err := bs.ub.BuildBlobURL(ref)
if err != nil {
return err
}
req, err := http.NewRequest("DELETE", blobURL, nil)
if err != nil {
return err
}
resp, err := bs.client.Do(req)
if err != nil {
return err
}
defer resp.Body.Close()
if client.SuccessStatus(resp.StatusCode) {
return nil
}
return client.HandleErrorResponse(resp)
}
func (r *registry) getRepoTags(ref reference.Named) (tags []string, err error) {
u, err := r.ub.BuildTagsURL(ref)
if err != nil {
return tags, err
}
req, err := r.getRequest(u, "")
if err != nil {
return nil, err
}
resp, err := r.client.Do(req)
defer safeCloseBody(resp)
if err != nil {
return nil, err
}
if !client.SuccessStatus(resp.StatusCode) {
log.Printf("Error response to %#v %v", req, req.URL)
return tags, client.HandleErrorResponse(resp)
}
b, err := ioutil.ReadAll(resp.Body)
if err != nil {
return tags, err
}
var tr tagsResponse
if err := json.Unmarshal(b, &tr); err != nil {
return tags, err
}
tags = tr.Tags
return tags, nil
}
// Get issues a HEAD request for a Manifest against its named endpoint in order
// to construct a descriptor for the tag. If the registry doesn't support HEADing
// a manifest, fallback to GET.
func (t *tags) Get(ctx context.Context, tag string) (distribution.Descriptor, error) {
ref, err := reference.WithTag(t.name, tag)
if err != nil {
return distribution.Descriptor{}, err
}
u, err := t.ub.BuildManifestURL(ref)
if err != nil {
return distribution.Descriptor{}, err
}
req, err := http.NewRequest("HEAD", u, nil)
if err != nil {
return distribution.Descriptor{}, err
}
for _, t := range distribution.ManifestMediaTypes() {
req.Header.Add("Accept", t)
}
var attempts int
resp, err := t.client.Do(req)
check:
if err != nil {
return distribution.Descriptor{}, err
}
defer resp.Body.Close()
switch {
case resp.StatusCode >= 200 && resp.StatusCode < 400:
return descriptorFromResponse(resp)
case resp.StatusCode == http.StatusMethodNotAllowed:
req, err = http.NewRequest("GET", u, nil)
if err != nil {
return distribution.Descriptor{}, err
}
for _, t := range distribution.ManifestMediaTypes() {
req.Header.Add("Accept", t)
}
resp, err = t.client.Do(req)
attempts++
if attempts > 1 {
return distribution.Descriptor{}, err
}
goto check
default:
return distribution.Descriptor{}, client.HandleErrorResponse(resp)
}
}
func (bs *blobs) Open(ctx context.Context, dgst digest.Digest) (distribution.ReadSeekCloser, error) {
ref, err := reference.WithDigest(bs.name, dgst)
if err != nil {
return nil, err
}
blobURL, err := bs.ub.BuildBlobURL(ref)
if err != nil {
return nil, err
}
return transport.NewHTTPReadSeeker(bs.client, blobURL,
func(resp *http.Response) error {
if resp.StatusCode == http.StatusNotFound {
return distribution.ErrBlobUnknown
}
return client.HandleErrorResponse(resp)
}), nil
}
// Repositories returns a lexigraphically sorted catalog given a base URL. The 'entries' slice will be filled up to the size
// of the slice, starting at the value provided in 'last'. The number of entries will be returned along with io.EOF if there
// are no more entries
func (r *oldRegistry) Repositories(ctx context.Context, entries []string, last string) (int, error) {
var numFilled int
var returnErr error
values := buildCatalogValues(len(entries), last)
u, err := r.ub.BuildCatalogURL(values)
if err != nil {
return 0, err
}
resp, err := r.client.Get(u)
if err != nil {
return 0, err
}
defer resp.Body.Close()
if client.SuccessStatus(resp.StatusCode) {
var ctlg struct {
Repositories []string `json:"repositories"`
}
decoder := json.NewDecoder(resp.Body)
if err := decoder.Decode(&ctlg); err != nil {
return 0, err
}
for cnt := range ctlg.Repositories {
entries[cnt] = ctlg.Repositories[cnt]
}
numFilled = len(ctlg.Repositories)
link := resp.Header.Get("Link")
if link == "" {
returnErr = io.EOF
}
} else {
return 0, client.HandleErrorResponse(resp)
}
return numFilled, returnErr
}
func (r *registry) getBlob(ctx context.Context, name reference.Named, dgst digest.Digest) ([]byte, error) {
ref, err := reference.WithDigest(name, dgst)
if err != nil {
return nil, err
}
blobURL, err := r.ub.BuildBlobURL(ref)
if err != nil {
return nil, err
}
reader := transport.NewHTTPReadSeeker(r.client, blobURL,
func(resp *http.Response) error {
if resp.StatusCode == http.StatusNotFound {
return distribution.ErrBlobUnknown
}
return client.HandleErrorResponse(resp)
})
defer reader.Close()
return ioutil.ReadAll(reader)
}
func (r *registry) manifestFromResponse(resp *http.Response) (distribution.Manifest, digest.Digest, error) {
if resp.StatusCode == http.StatusNotModified {
return nil, "", distribution.ErrManifestNotModified
} else if client.SuccessStatus(resp.StatusCode) {
mt := resp.Header.Get("Content-Type")
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, "", err
}
m, _, err := distribution.UnmarshalManifest(mt, body)
if err != nil {
return nil, "", err
}
var d digest.Digest
switch v := m.(type) {
case *schema1.SignedManifest:
//log.Print(string(v.Canonical))
d = digest.FromBytes(v.Canonical)
case *schema2.DeserializedManifest:
_, pl, err := m.Payload()
if err != nil {
return nil, "", err
}
//log.Print(string(pl))
d = digest.FromBytes(pl)
default:
return nil, "", fmt.Errorf("unsupported manifest format")
}
// log.Printf("%T", m)
// log.Print("Calced: ", d)
// log.Print("Header: ", resp.Header.Get("Docker-Content-Digest"))
// log.Print("Docker: sha256:d3d75a393555a8eb6bf1e94736b90b84712638e5f3dbd7728355310dbd4f1684") //docker pull
return m, d, nil
}
return nil, "", client.HandleErrorResponse(resp)
}
func (bs *blobStatter) Stat(ctx context.Context, dgst digest.Digest) (distribution.Descriptor, error) {
ref, err := reference.WithDigest(bs.name, dgst)
if err != nil {
return distribution.Descriptor{}, err
}
u, err := bs.ub.BuildBlobURL(ref)
if err != nil {
return distribution.Descriptor{}, err
}
resp, err := bs.client.Head(u)
if err != nil {
return distribution.Descriptor{}, err
}
defer resp.Body.Close()
if client.SuccessStatus(resp.StatusCode) {
lengthHeader := resp.Header.Get("Content-Length")
if lengthHeader == "" {
return distribution.Descriptor{}, fmt.Errorf("missing content-length header for request: %s", u)
}
length, err := strconv.ParseInt(lengthHeader, 10, 64)
if err != nil {
return distribution.Descriptor{}, fmt.Errorf("error parsing content-length: %v", err)
}
return distribution.Descriptor{
MediaType: resp.Header.Get("Content-Type"),
Size: length,
Digest: dgst,
}, nil
} else if resp.StatusCode == http.StatusNotFound {
return distribution.Descriptor{}, distribution.ErrBlobUnknown
}
return distribution.Descriptor{}, client.HandleErrorResponse(resp)
}
func (th *tokenHandler) fetchToken(params map[string]string) (token *tokenResponse, err error) {
//log.Debugf("Getting bearer token with %s for %s", challenge.Parameters, ta.auth.Username)
realm, ok := params["realm"]
if !ok {
return nil, errors.New("no realm specified for token auth challenge")
}
// TODO(dmcgowan): Handle empty scheme
realmURL, err := url.Parse(realm)
if err != nil {
return nil, fmt.Errorf("invalid token auth challenge realm: %s", err)
}
req, err := http.NewRequest("GET", realmURL.String(), nil)
if err != nil {
return nil, err
}
reqParams := req.URL.Query()
service := params["service"]
scope := th.scope.String()
if service != "" {
reqParams.Add("service", service)
}
for _, scopeField := range strings.Fields(scope) {
reqParams.Add("scope", scopeField)
}
for scope := range th.additionalScopes {
reqParams.Add("scope", scope)
}
if th.creds != nil {
username, password := th.creds.Basic(realmURL)
if username != "" && password != "" {
reqParams.Add("account", username)
req.SetBasicAuth(username, password)
}
}
req.URL.RawQuery = reqParams.Encode()
resp, err := th.client().Do(req)
if err != nil {
return nil, err
}
defer resp.Body.Close()
if !client.SuccessStatus(resp.StatusCode) {
err := client.HandleErrorResponse(resp)
return nil, err
}
decoder := json.NewDecoder(resp.Body)
tr := new(tokenResponse)
if err = decoder.Decode(tr); err != nil {
return nil, fmt.Errorf("unable to decode token response: %s", err)
}
// `access_token` is equivalent to `token` and if both are specified
// the choice is undefined. Canonicalize `access_token` by sticking
// things in `token`.
if tr.AccessToken != "" {
tr.Token = tr.AccessToken
}
if tr.Token == "" {
return nil, errors.New("authorization server did not include a token in the response")
}
if tr.ExpiresIn < minimumTokenLifetimeSeconds {
// The default/minimum lifetime.
tr.ExpiresIn = minimumTokenLifetimeSeconds
logrus.Debugf("Increasing token expiration to: %d seconds", tr.ExpiresIn)
}
if tr.IssuedAt.IsZero() {
// issued_at is optional in the token response.
tr.IssuedAt = th.clock.Now()
}
return tr, nil
}
func (th *tokenHandler) fetchTokenWithBasicAuth(realm *url.URL, service string, scopes []string) (token string, expiration time.Time, err error) {
req, err := http.NewRequest("GET", realm.String(), nil)
if err != nil {
return "", time.Time{}, err
}
reqParams := req.URL.Query()
if service != "" {
reqParams.Add("service", service)
}
for _, scope := range scopes {
reqParams.Add("scope", scope)
}
if th.offlineAccess {
reqParams.Add("offline_token", "true")
clientID := th.clientID
if clientID == "" {
clientID = defaultClientID
}
reqParams.Add("client_id", clientID)
}
if th.creds != nil {
username, password := th.creds.Basic(realm)
if username != "" && password != "" {
reqParams.Add("account", username)
req.SetBasicAuth(username, password)
}
}
req.URL.RawQuery = reqParams.Encode()
resp, err := th.client().Do(req)
if err != nil {
return "", time.Time{}, err
}
defer resp.Body.Close()
if !client.SuccessStatus(resp.StatusCode) {
err := client.HandleErrorResponse(resp)
return "", time.Time{}, err
}
decoder := json.NewDecoder(resp.Body)
var tr getTokenResponse
if err = decoder.Decode(&tr); err != nil {
return "", time.Time{}, fmt.Errorf("unable to decode token response: %s", err)
}
if tr.RefreshToken != "" && th.creds != nil {
th.creds.SetRefreshToken(realm, service, tr.RefreshToken)
}
// `access_token` is equivalent to `token` and if both are specified
// the choice is undefined. Canonicalize `access_token` by sticking
// things in `token`.
if tr.AccessToken != "" {
tr.Token = tr.AccessToken
}
if tr.Token == "" {
return "", time.Time{}, ErrNoToken
}
if tr.ExpiresIn < minimumTokenLifetimeSeconds {
// The default/minimum lifetime.
tr.ExpiresIn = minimumTokenLifetimeSeconds
logrus.Debugf("Increasing token expiration to: %d seconds", tr.ExpiresIn)
}
if tr.IssuedAt.IsZero() {
// issued_at is optional in the token response.
tr.IssuedAt = th.clock.Now().UTC()
}
return tr.Token, tr.IssuedAt.Add(time.Duration(tr.ExpiresIn) * time.Second), nil
}
func (th *tokenHandler) fetchTokenWithOAuth(realm *url.URL, refreshToken, service string, scopes []string) (token string, expiration time.Time, err error) {
form := url.Values{}
form.Set("scope", strings.Join(scopes, " "))
form.Set("service", service)
clientID := th.clientID
if clientID == "" {
// Use default client, this is a required field
clientID = defaultClientID
}
form.Set("client_id", clientID)
if refreshToken != "" {
form.Set("grant_type", "refresh_token")
form.Set("refresh_token", refreshToken)
} else if th.creds != nil {
form.Set("grant_type", "password")
username, password := th.creds.Basic(realm)
form.Set("username", username)
form.Set("password", password)
// attempt to get a refresh token
form.Set("access_type", "offline")
} else {
// refuse to do oauth without a grant type
return "", time.Time{}, fmt.Errorf("no supported grant type")
}
resp, err := th.client().PostForm(realm.String(), form)
if err != nil {
return "", time.Time{}, err
}
defer resp.Body.Close()
if !client.SuccessStatus(resp.StatusCode) {
err := client.HandleErrorResponse(resp)
return "", time.Time{}, err
}
decoder := json.NewDecoder(resp.Body)
var tr postTokenResponse
if err = decoder.Decode(&tr); err != nil {
return "", time.Time{}, fmt.Errorf("unable to decode token response: %s", err)
}
if tr.RefreshToken != "" && tr.RefreshToken != refreshToken {
th.creds.SetRefreshToken(realm, service, tr.RefreshToken)
}
if tr.ExpiresIn < minimumTokenLifetimeSeconds {
// The default/minimum lifetime.
tr.ExpiresIn = minimumTokenLifetimeSeconds
logrus.Debugf("Increasing token expiration to: %d seconds", tr.ExpiresIn)
}
if tr.IssuedAt.IsZero() {
// issued_at is optional in the token response.
tr.IssuedAt = th.clock.Now().UTC()
}
return tr.AccessToken, tr.IssuedAt.Add(time.Duration(tr.ExpiresIn) * time.Second), nil
}