/
blobstore.go
101 lines (86 loc) · 2.96 KB
/
blobstore.go
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package audit
import (
"net/http"
"github.com/docker/distribution"
"github.com/docker/distribution/context"
"github.com/docker/distribution/digest"
)
// BlobStore wraps a distribution.BlobStore to track operation result and
// write it in the audit log.
type BlobStore struct {
store distribution.BlobStore
logger *AuditLogger
}
func NewBlobStore(ctx context.Context, store distribution.BlobStore) distribution.BlobStore {
return &BlobStore{
store: store,
logger: GetLogger(ctx),
}
}
func (b *BlobStore) Stat(ctx context.Context, dgst digest.Digest) (distribution.Descriptor, error) {
b.logger.Log("BlobStore.Stat")
desc, err := b.store.Stat(ctx, dgst)
b.logger.LogResult(err, "BlobStore.Stat")
return desc, err
}
func (b *BlobStore) Get(ctx context.Context, dgst digest.Digest) ([]byte, error) {
b.logger.Log("BlobStore.Get")
blob, err := b.store.Get(ctx, dgst)
b.logger.LogResult(err, "BlobStore.Get")
return blob, err
}
func (b *BlobStore) Open(ctx context.Context, dgst digest.Digest) (distribution.ReadSeekCloser, error) {
b.logger.Log("BlobStore.Open")
reader, err := b.store.Open(ctx, dgst)
b.logger.LogResult(err, "BlobStore.Open")
return reader, err
}
func (b *BlobStore) Put(ctx context.Context, mediaType string, p []byte) (distribution.Descriptor, error) {
b.logger.Log("BlobStore.Put")
desc, err := b.store.Put(ctx, mediaType, p)
b.logger.LogResult(err, "BlobStore.Put")
return desc, err
}
func (b *BlobStore) Create(ctx context.Context, options ...distribution.BlobCreateOption) (distribution.BlobWriter, error) {
b.logger.Log("BlobStore.Create")
writer, err := b.store.Create(ctx, options...)
b.logger.LogResult(err, "BlobStore.Create")
return &blobWriter{
BlobWriter: writer,
logger: b.logger,
}, err
}
func (b *BlobStore) Resume(ctx context.Context, id string) (distribution.BlobWriter, error) {
b.logger.Log("BlobStore.Resume")
writer, err := b.store.Resume(ctx, id)
b.logger.LogResult(err, "BlobStore.Resume")
return writer, err
}
func (b *BlobStore) ServeBlob(ctx context.Context, w http.ResponseWriter, req *http.Request, dgst digest.Digest) error {
b.logger.Log("BlobStore.ServeBlob")
err := b.store.ServeBlob(ctx, w, req, dgst)
b.logger.LogResult(err, "BlobStore.ServeBlob")
return err
}
func (b *BlobStore) Delete(ctx context.Context, dgst digest.Digest) error {
b.logger.Log("BlobStore.Delete")
err := b.store.Delete(ctx, dgst)
b.logger.LogResult(err, "BlobStore.Delete")
return err
}
type blobWriter struct {
distribution.BlobWriter
logger *AuditLogger
}
func (bw *blobWriter) Commit(ctx context.Context, provisional distribution.Descriptor) (canonical distribution.Descriptor, err error) {
bw.logger.Log("BlobWriter.Commit")
desc, err := bw.BlobWriter.Commit(ctx, provisional)
bw.logger.LogResult(err, "BlobWriter.Commit")
return desc, err
}
func (bw *blobWriter) Cancel(ctx context.Context) error {
bw.logger.Log("BlobWriter.Cancel")
err := bw.BlobWriter.Cancel(ctx)
bw.logger.LogResult(err, "BlobWriter.Cancel")
return err
}