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docker1.go
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docker1.go
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package manifest
import (
"bytes"
"encoding/json"
"fmt"
"text/tabwriter"
// crypto libraries included for go-digest
_ "crypto/sha256"
_ "crypto/sha512"
digest "github.com/opencontainers/go-digest"
"github.com/regclient/regclient/types/descriptor"
"github.com/regclient/regclient/types/docker/schema1"
"github.com/regclient/regclient/types/errs"
"github.com/regclient/regclient/types/mediatype"
"github.com/regclient/regclient/types/platform"
)
const (
// MediaTypeDocker1Manifest deprecated media type for docker schema1 manifests.
MediaTypeDocker1Manifest = "application/vnd.docker.distribution.manifest.v1+json"
// MediaTypeDocker1ManifestSigned is a deprecated schema1 manifest with jws signing.
MediaTypeDocker1ManifestSigned = "application/vnd.docker.distribution.manifest.v1+prettyjws"
)
type docker1Manifest struct {
common
schema1.Manifest
}
type docker1SignedManifest struct {
common
schema1.SignedManifest
}
func (m *docker1Manifest) GetConfig() (descriptor.Descriptor, error) {
return descriptor.Descriptor{}, fmt.Errorf("config digest not available for media type %s%.0w", m.desc.MediaType, errs.ErrUnsupportedMediaType)
}
func (m *docker1Manifest) GetConfigDigest() (digest.Digest, error) {
return "", fmt.Errorf("config digest not available for media type %s%.0w", m.desc.MediaType, errs.ErrUnsupportedMediaType)
}
func (m *docker1SignedManifest) GetConfig() (descriptor.Descriptor, error) {
return descriptor.Descriptor{}, fmt.Errorf("config digest not available for media type %s%.0w", m.desc.MediaType, errs.ErrUnsupportedMediaType)
}
func (m *docker1SignedManifest) GetConfigDigest() (digest.Digest, error) {
return "", fmt.Errorf("config digest not available for media type %s%.0w", m.desc.MediaType, errs.ErrUnsupportedMediaType)
}
func (m *docker1Manifest) GetManifestList() ([]descriptor.Descriptor, error) {
return []descriptor.Descriptor{}, fmt.Errorf("platform descriptor list not available for media type %s%.0w", m.desc.MediaType, errs.ErrUnsupportedMediaType)
}
func (m *docker1SignedManifest) GetManifestList() ([]descriptor.Descriptor, error) {
return []descriptor.Descriptor{}, fmt.Errorf("platform descriptor list not available for media type %s%.0w", m.desc.MediaType, errs.ErrUnsupportedMediaType)
}
func (m *docker1Manifest) GetLayers() ([]descriptor.Descriptor, error) {
if !m.manifSet {
return []descriptor.Descriptor{}, errs.ErrManifestNotSet
}
var dl []descriptor.Descriptor
for _, sd := range m.FSLayers {
dl = append(dl, descriptor.Descriptor{
Digest: sd.BlobSum,
})
}
return dl, nil
}
func (m *docker1SignedManifest) GetLayers() ([]descriptor.Descriptor, error) {
if !m.manifSet {
return []descriptor.Descriptor{}, errs.ErrManifestNotSet
}
var dl []descriptor.Descriptor
for _, sd := range m.FSLayers {
dl = append(dl, descriptor.Descriptor{
Digest: sd.BlobSum,
})
}
return dl, nil
}
func (m *docker1Manifest) GetOrig() interface{} {
return m.Manifest
}
func (m *docker1SignedManifest) GetOrig() interface{} {
return m.SignedManifest
}
func (m *docker1Manifest) GetPlatformDesc(p *platform.Platform) (*descriptor.Descriptor, error) {
return nil, fmt.Errorf("platform lookup not available for media type %s%.0w", m.desc.MediaType, errs.ErrUnsupportedMediaType)
}
func (m *docker1SignedManifest) GetPlatformDesc(p *platform.Platform) (*descriptor.Descriptor, error) {
return nil, fmt.Errorf("platform lookup not available for media type %s%.0w", m.desc.MediaType, errs.ErrUnsupportedMediaType)
}
func (m *docker1Manifest) GetPlatformList() ([]*platform.Platform, error) {
return nil, fmt.Errorf("platform list not available for media type %s%.0w", m.desc.MediaType, errs.ErrUnsupportedMediaType)
}
func (m *docker1SignedManifest) GetPlatformList() ([]*platform.Platform, error) {
return nil, fmt.Errorf("platform list not available for media type %s%.0w", m.desc.MediaType, errs.ErrUnsupportedMediaType)
}
func (m *docker1Manifest) GetSize() (int64, error) {
return 0, fmt.Errorf("GetSize is not available for media type %s%.0w", m.desc.MediaType, errs.ErrUnsupportedMediaType)
}
func (m *docker1SignedManifest) GetSize() (int64, error) {
return 0, fmt.Errorf("GetSize is not available for media type %s%.0w", m.desc.MediaType, errs.ErrUnsupportedMediaType)
}
func (m *docker1Manifest) MarshalJSON() ([]byte, error) {
if !m.manifSet {
return []byte{}, errs.ErrManifestNotSet
}
if len(m.rawBody) > 0 {
return m.rawBody, nil
}
return json.Marshal((m.Manifest))
}
func (m *docker1SignedManifest) MarshalJSON() ([]byte, error) {
if !m.manifSet {
return []byte{}, errs.ErrManifestNotSet
}
return m.SignedManifest.MarshalJSON()
}
func (m *docker1Manifest) MarshalPretty() ([]byte, error) {
if m == nil {
return []byte{}, nil
}
buf := &bytes.Buffer{}
tw := tabwriter.NewWriter(buf, 0, 0, 1, ' ', 0)
if m.r.Reference != "" {
fmt.Fprintf(tw, "Name:\t%s\n", m.r.Reference)
}
fmt.Fprintf(tw, "MediaType:\t%s\n", m.desc.MediaType)
fmt.Fprintf(tw, "Digest:\t%s\n", m.desc.Digest.String())
fmt.Fprintf(tw, "\t\n")
fmt.Fprintf(tw, "Layers:\t\n")
for _, d := range m.FSLayers {
fmt.Fprintf(tw, " Digest:\t%s\n", string(d.BlobSum))
}
err := tw.Flush()
return buf.Bytes(), err
}
func (m *docker1SignedManifest) MarshalPretty() ([]byte, error) {
if m == nil {
return []byte{}, nil
}
buf := &bytes.Buffer{}
tw := tabwriter.NewWriter(buf, 0, 0, 1, ' ', 0)
if m.r.Reference != "" {
fmt.Fprintf(tw, "Name:\t%s\n", m.r.Reference)
}
fmt.Fprintf(tw, "MediaType:\t%s\n", m.desc.MediaType)
fmt.Fprintf(tw, "Digest:\t%s\n", m.desc.Digest.String())
fmt.Fprintf(tw, "\t\n")
fmt.Fprintf(tw, "Layers:\t\n")
for _, d := range m.FSLayers {
fmt.Fprintf(tw, " Digest:\t%s\n", string(d.BlobSum))
}
err := tw.Flush()
return buf.Bytes(), err
}
func (m *docker1Manifest) SetConfig(d descriptor.Descriptor) error {
return fmt.Errorf("set methods not supported for for media type %s%.0w", m.desc.MediaType, errs.ErrUnsupportedMediaType)
}
func (m *docker1SignedManifest) SetConfig(d descriptor.Descriptor) error {
return fmt.Errorf("set methods not supported for for media type %s%.0w", m.desc.MediaType, errs.ErrUnsupportedMediaType)
}
func (m *docker1Manifest) SetLayers(dl []descriptor.Descriptor) error {
return fmt.Errorf("set methods not supported for for media type %s%.0w", m.desc.MediaType, errs.ErrUnsupportedMediaType)
}
func (m *docker1SignedManifest) SetLayers(dl []descriptor.Descriptor) error {
return fmt.Errorf("set methods not supported for for media type %s%.0w", m.desc.MediaType, errs.ErrUnsupportedMediaType)
}
func (m *docker1Manifest) SetOrig(origIn interface{}) error {
orig, ok := origIn.(schema1.Manifest)
if !ok {
return errs.ErrUnsupportedMediaType
}
if orig.MediaType != mediatype.Docker1Manifest {
// TODO: error?
orig.MediaType = mediatype.Docker1Manifest
}
mj, err := json.Marshal(orig)
if err != nil {
return err
}
m.manifSet = true
m.rawBody = mj
m.desc = descriptor.Descriptor{
MediaType: mediatype.Docker1Manifest,
Digest: digest.FromBytes(mj),
Size: int64(len(mj)),
}
m.Manifest = orig
return nil
}
func (m *docker1SignedManifest) SetOrig(origIn interface{}) error {
orig, ok := origIn.(schema1.SignedManifest)
if !ok {
return errs.ErrUnsupportedMediaType
}
if orig.MediaType != mediatype.Docker1ManifestSigned {
// TODO: error?
orig.MediaType = mediatype.Docker1ManifestSigned
}
mj, err := json.Marshal(orig)
if err != nil {
return err
}
m.manifSet = true
m.rawBody = mj
m.desc = descriptor.Descriptor{
MediaType: mediatype.Docker1ManifestSigned,
Digest: digest.FromBytes(mj),
Size: int64(len(mj)),
}
m.SignedManifest = orig
return nil
}