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artifacts: initial support for artifacts/notaryv2 spec

Browse Source 
https://github.com/oras-project/artifacts-spec
https://github.com/notaryproject/notaryproject

Fixes issue #264

Signed-off-by: Ramkumar Chinchani <rchincha@cisco.com>
This commit is contained in:
Ramkumar Chinchani
2021-10-30 02:10:55 +00:00
committed by Ramkumar Chinchani
parent d1a80ba9b7
commit e42e42a2cc
12 changed files with 1537 additions and 47 deletions
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pkg/api/routes.go
+73 -1
View File
@@ -28,6 +28,8 @@ import (
_ "github.com/anuvu/zot/swagger" // as required by swaggo
"github.com/gorilla/mux"
jsoniter "github.com/json-iterator/go"
"github.com/notaryproject/notation-go-lib"
notreg "github.com/notaryproject/notation/pkg/registry"
ispec "github.com/opencontainers/image-spec/specs-go/v1"
httpSwagger "github.com/swaggo/http-swagger"
)
@@ -93,6 +95,11 @@ func (rh *RouteHandler) SetupRoutes() {
g.HandleFunc("/",
rh.CheckVersionSupport).Methods("GET")
}
// support for oras artifact reference types (alpha 1) - image signature use case
rh.c.Router.HandleFunc(fmt.Sprintf("/oras/artifacts/v1/{name:%s}/manifests/{digest}/referrers", NameRegexp.String()),
rh.GetReferrers).Methods("GET")
// swagger swagger "/swagger/v2/index.html"
rh.c.Router.PathPrefix("/swagger/v2/").Methods("GET").Handler(httpSwagger.WrapHandler)
// Setup Extensions Routes
@@ -393,7 +400,7 @@ func (rh *RouteHandler) UpdateManifest(w http.ResponseWriter, r *http.Request) {
}
mediaType := r.Header.Get("Content-Type")
if mediaType != ispec.MediaTypeImageManifest {
if !storage.IsSupportedMediaType(mediaType) {
w.WriteHeader(http.StatusUnsupportedMediaType)
return
}
@@ -1290,3 +1297,68 @@ func getImageManifest(rh *RouteHandler, is storage.ImageStore, name,
return content, digest, mediaType, err
}
type ReferenceList struct {
References []notation.Descriptor `json:"references"`
}
// GetReferrers godoc
// @Summary Get references for an image
// @Description Get references for an image given a digest and artifact type
// @Accept json
// @Produce json
// @Param name path string true "repository name"
// @Param digest path string true "image digest"
// @Param artifactType query string true "artifact type"
// @Success 200 {string} string "ok"
// @Failure 404 {string} string "not found"
// @Failure 500 {string} string "internal server error"
// @Router /oras/artifacts/v1/{name:%s}/manifests/{digest}/referrers [get].
func (rh *RouteHandler) GetReferrers(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
name, ok := vars["name"]
if !ok || name == "" {
w.WriteHeader(http.StatusNotFound)
return
}
digest, ok := vars["digest"]
if !ok || digest == "" {
w.WriteHeader(http.StatusBadRequest)
return
}
artifactTypes, ok := r.URL.Query()["artifactType"]
if !ok || len(artifactTypes) != 1 {
rh.c.Log.Error().Msg("invalid artifact types")
w.WriteHeader(http.StatusBadRequest)
return
}
artifactType := artifactTypes[0]
if artifactType != notreg.ArtifactTypeNotation {
rh.c.Log.Error().Str("artifactType", artifactType).Msg("invalid artifact type")
w.WriteHeader(http.StatusBadRequest)
return
}
is := rh.getImageStore(name)
rh.c.Log.Info().Str("digest", digest).Str("artifactType", artifactType).Msg("getting manifest")
refs, err := is.GetReferrers(name, digest, artifactType)
if err != nil {
rh.c.Log.Error().Err(err).Str("name", name).Str("digest", digest).Msg("unable to get references")
w.WriteHeader(http.StatusBadRequest)
return
}
rs := ReferenceList{References: refs}
WriteJSON(w, http.StatusOK, rs)
}