127 lines
3.5 KiB
Go
127 lines
3.5 KiB
Go
package storage
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
"github.com/docker/distribution"
|
|
"github.com/docker/distribution/context"
|
|
"github.com/docker/distribution/digest"
|
|
"github.com/docker/distribution/manifest"
|
|
"github.com/docker/libtrust"
|
|
)
|
|
|
|
type manifestStore struct {
|
|
repository *repository
|
|
revisionStore *revisionStore
|
|
tagStore *tagStore
|
|
ctx context.Context
|
|
}
|
|
|
|
var _ distribution.ManifestService = &manifestStore{}
|
|
|
|
func (ms *manifestStore) Exists(dgst digest.Digest) (bool, error) {
|
|
context.GetLogger(ms.ctx).Debug("(*manifestStore).Exists")
|
|
|
|
_, err := ms.revisionStore.blobStore.Stat(ms.ctx, dgst)
|
|
if err != nil {
|
|
if err == distribution.ErrBlobUnknown {
|
|
return false, nil
|
|
}
|
|
|
|
return false, err
|
|
}
|
|
|
|
return true, nil
|
|
}
|
|
|
|
func (ms *manifestStore) Get(dgst digest.Digest) (*manifest.SignedManifest, error) {
|
|
context.GetLogger(ms.ctx).Debug("(*manifestStore).Get")
|
|
return ms.revisionStore.get(ms.ctx, dgst)
|
|
}
|
|
|
|
func (ms *manifestStore) Put(manifest *manifest.SignedManifest) error {
|
|
context.GetLogger(ms.ctx).Debug("(*manifestStore).Put")
|
|
|
|
// Verify the manifest.
|
|
if err := ms.verifyManifest(ms.ctx, manifest); err != nil {
|
|
return err
|
|
}
|
|
|
|
// Store the revision of the manifest
|
|
revision, err := ms.revisionStore.put(ms.ctx, manifest)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
// Now, tag the manifest
|
|
return ms.tagStore.tag(manifest.Tag, revision.Digest)
|
|
}
|
|
|
|
// Delete removes the revision of the specified manfiest.
|
|
func (ms *manifestStore) Delete(dgst digest.Digest) error {
|
|
context.GetLogger(ms.ctx).Debug("(*manifestStore).Delete - unsupported")
|
|
return fmt.Errorf("deletion of manifests not supported")
|
|
}
|
|
|
|
func (ms *manifestStore) Tags() ([]string, error) {
|
|
context.GetLogger(ms.ctx).Debug("(*manifestStore).Tags")
|
|
return ms.tagStore.tags()
|
|
}
|
|
|
|
func (ms *manifestStore) ExistsByTag(tag string) (bool, error) {
|
|
context.GetLogger(ms.ctx).Debug("(*manifestStore).ExistsByTag")
|
|
return ms.tagStore.exists(tag)
|
|
}
|
|
|
|
func (ms *manifestStore) GetByTag(tag string) (*manifest.SignedManifest, error) {
|
|
context.GetLogger(ms.ctx).Debug("(*manifestStore).GetByTag")
|
|
dgst, err := ms.tagStore.resolve(tag)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return ms.revisionStore.get(ms.ctx, dgst)
|
|
}
|
|
|
|
// verifyManifest ensures that the manifest content is valid from the
|
|
// perspective of the registry. It ensures that the signature is valid for the
|
|
// enclosed payload. As a policy, the registry only tries to store valid
|
|
// content, leaving trust policies of that content up to consumers.
|
|
func (ms *manifestStore) verifyManifest(ctx context.Context, mnfst *manifest.SignedManifest) error {
|
|
var errs distribution.ErrManifestVerification
|
|
if mnfst.Name != ms.repository.Name() {
|
|
errs = append(errs, fmt.Errorf("repository name does not match manifest name"))
|
|
}
|
|
|
|
if _, err := manifest.Verify(mnfst); err != nil {
|
|
switch err {
|
|
case libtrust.ErrMissingSignatureKey, libtrust.ErrInvalidJSONContent, libtrust.ErrMissingSignatureKey:
|
|
errs = append(errs, distribution.ErrManifestUnverified{})
|
|
default:
|
|
if err.Error() == "invalid signature" { // TODO(stevvooe): This should be exported by libtrust
|
|
errs = append(errs, distribution.ErrManifestUnverified{})
|
|
} else {
|
|
errs = append(errs, err)
|
|
}
|
|
}
|
|
}
|
|
|
|
for _, fsLayer := range mnfst.FSLayers {
|
|
_, err := ms.repository.Blobs(ctx).Stat(ctx, fsLayer.BlobSum)
|
|
if err != nil {
|
|
if err != distribution.ErrBlobUnknown {
|
|
errs = append(errs, err)
|
|
}
|
|
|
|
// On error here, we always append unknown blob errors.
|
|
errs = append(errs, distribution.ErrManifestBlobUnknown{Digest: fsLayer.BlobSum})
|
|
}
|
|
}
|
|
|
|
if len(errs) != 0 {
|
|
return errs
|
|
}
|
|
|
|
return nil
|
|
}
|