working commit

app/imageoper/manexist.go

@@ -15,8 +15,10 @@ import (
 	"net/http"
 	"strconv"
 
-	"mstore/pkg/auxoci"
+	//"mstore/pkg/auxoci"
 	"mstore/pkg/descr"
+
+	ocidigest "github.com/opencontainers/go-digest"
 )
 
 type ManifestExistsParams struct {
@@ -43,35 +45,42 @@ func (oper *Operator) ManifestExists(ctx context.Context, params *ManifestExists
 		return res, http.StatusBadRequest, err
 	}
 
-	var manifest descr.Manifest
-	manifests := make([]descr.Manifest, 0)
-	var exists bool
-	if stringLikeSHA256Digest(params.Reference) {
-		digest := fmt.Sprintf("%s:%s", sha256prefix, params.Reference)
-		exists, manifest, err = oper.mdb.GetManifestByDigest(ctx, params.Name, digest)
+	var man descr.Manifest
+	var exist bool
+
+	digobj, err := ocidigest.Parse(params.Reference)
+	if err == nil {
+		exist, man, err = oper.mdb.GetManifestByDigest(ctx, params.Name, digobj.String())
 		if err != nil {
 			return res, http.StatusInternalServerError, err
 		}
-		if !exists {
+		if !exist {
 			return res, http.StatusNotFound, err
 		}
+		size := int64(len(man.Payload))
+		res.ContentLength = strconv.FormatInt(size, 10)
+		res.ContentType = man.ContentType
+		res.DockerContentDigest = man.Digest
+		res.Exists = exist
 	} else {
-		exists, manifests, err = oper.mdb.GetManifestsByReference(ctx, params.Name, params.Reference)
+		// Create index of manifests
+		exists, manDescrs, err := oper.mdb.GetManifestsByReference(ctx, params.Name, params.Reference)
 		if err != nil {
 			return res, http.StatusInternalServerError, err
 		}
 		if !exists {
 			return res, http.StatusNotFound, err
 		}
-		manifest = manifests[0] // TODO: tmp
+		_, indexdata, err := indexFromManigestDescrs(manDescrs)
+		if err != nil {
+			return res, http.StatusInternalServerError, err
+		}
+		digobj := ocidigest.SHA256.FromBytes(indexdata)
+		res.DockerContentDigest = digobj.String()
+		size := int64(len(indexdata))
+		res.ContentLength = strconv.FormatInt(size, 10)
+		res.ContentType = oiiMediaType
+		res.Exists = true
 	}
-
-	digest := auxoci.SHA256DigestFromString(manifest.Payload)
-	payloadSize := len(manifest.Payload)
-	res.ContentLength = strconv.FormatInt(int64(payloadSize), 10)
-	res.ContentType = manifest.ContentType
-	res.DockerContentDigest = digest.String()
-	res.Exists = exists
-
 	return res, http.StatusOK, err
 }