Implement the resolver for helm chart

Implement the resolver for helm chart

Signed-off-by: Wenkai Yin <yinw@vmware.com>

src/api/artifact/abstractor/abstractor_test.go

@@ -1,3 +1,7 @@
+// Copyright Project Harbor Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //    http://www.apache.org/licenses/LICENSE-2.0

src/api/artifact/abstractor/resolver/chart/chart.go

@@ -1,3 +1,7 @@
+// Copyright Project Harbor Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //    http://www.apache.org/licenses/LICENSE-2.0
@@ -9,3 +13,70 @@
 // limitations under the License.
 
 package chart
+
+import (
+	"context"
+	"encoding/json"
+	"github.com/goharbor/harbor/src/api/artifact/abstractor/blob"
+	resolv "github.com/goharbor/harbor/src/api/artifact/abstractor/resolver"
+	"github.com/goharbor/harbor/src/common/utils/log"
+	"github.com/goharbor/harbor/src/pkg/artifact"
+	"github.com/goharbor/harbor/src/pkg/repository"
+	v1 "github.com/opencontainers/image-spec/specs-go/v1"
+)
+
+const (
+	// ArtifactTypeChart defines the artifact type for helm chart
+	ArtifactTypeChart = "CHART"
+	// TODO import it from helm chart repository
+	mediaType = "application/vnd.cncf.helm.config.v1+json"
+)
+
+func init() {
+	resolver := &resolver{
+		repoMgr:     repository.Mgr,
+		blobFetcher: blob.Fcher,
+	}
+	if err := resolv.Register(resolver, mediaType); err != nil {
+		log.Errorf("failed to register resolver for artifact %s: %v", resolver.ArtifactType(), err)
+		return
+	}
+}
+
+type resolver struct {
+	repoMgr     repository.Manager
+	blobFetcher blob.Fetcher
+}
+
+func (r *resolver) ArtifactType() string {
+	return ArtifactTypeChart
+}
+
+func (r *resolver) Resolve(ctx context.Context, manifest []byte, artifact *artifact.Artifact) error {
+	repository, err := r.repoMgr.Get(ctx, artifact.RepositoryID)
+	if err != nil {
+		return err
+	}
+	m := &v1.Manifest{}
+	if err := json.Unmarshal(manifest, m); err != nil {
+		return err
+	}
+	digest := m.Config.Digest.String()
+	layer, err := r.blobFetcher.FetchLayer(repository.Name, digest)
+	if err != nil {
+		return err
+	}
+	// TODO should we abstract all values?
+	metadata := map[string]interface{}{}
+	if err := json.Unmarshal(layer, &metadata); err != nil {
+		return err
+	}
+	if artifact.ExtraAttrs == nil {
+		artifact.ExtraAttrs = map[string]interface{}{}
+	}
+	for k, v := range metadata {
+		artifact.ExtraAttrs[k] = v
+	}
+
+	return nil
+}

src/api/artifact/abstractor/resolver/chart/chart_test.go

@@ -0,0 +1,104 @@
+// Copyright Project Harbor Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package chart
+
+import (
+	"github.com/goharbor/harbor/src/common/models"
+	"github.com/goharbor/harbor/src/pkg/artifact"
+	htesting "github.com/goharbor/harbor/src/testing"
+	"github.com/goharbor/harbor/src/testing/api/artifact/abstractor/blob"
+	"github.com/stretchr/testify/suite"
+	"testing"
+)
+
+type resolverTestSuite struct {
+	suite.Suite
+	resolver    *resolver
+	repoMgr     *htesting.FakeRepositoryManager
+	blobFetcher *blob.FakeFetcher
+}
+
+func (r *resolverTestSuite) SetupTest() {
+	r.repoMgr = &htesting.FakeRepositoryManager{}
+	r.blobFetcher = &blob.FakeFetcher{}
+	r.resolver = &resolver{
+		repoMgr:     r.repoMgr,
+		blobFetcher: r.blobFetcher,
+	}
+
+}
+
+func (r *resolverTestSuite) TestArtifactType() {
+	r.Assert().Equal(ArtifactTypeChart, r.resolver.ArtifactType())
+}
+
+func (r *resolverTestSuite) TestResolve() {
+	content := `{
+  "schemaVersion": 2,
+  "config": {
+    "mediaType": "application/vnd.cncf.helm.config.v1+json",
+    "digest": "sha256:c87983b066bd08616c6135832363ed42784d66386814694b237f5608213be325",
+    "size": 542
+  },
+  "layers": [
+    {
+      "mediaType": "application/vnd.cncf.helm.chart.content.layer.v1+tar",
+      "digest": "sha256:0f8c0650d55f5e00d11d7462381c340454a3b9e517e15a0187011dc305690541",
+      "size": 28776
+    }
+  ]
+}`
+	config := `{
+  "name": "harbor",
+  "home": "https://goharbor.io",
+  "sources": [
+    "https://github.com/goharbor/harbor",
+    "https://github.com/goharbor/harbor-helm"
+  ],
+  "version": "1.1.2",
+  "description": "An open source trusted cloud native registry that stores, signs, and scans content",
+  "keywords": [
+    "docker",
+    "registry",
+    "harbor"
+  ],
+  "maintainers": [
+    {
+      "name": "Jesse Hu",
+      "email": "huh@vmware.com"
+    },
+    {
+      "name": "paulczar",
+      "email": "username.taken@gmail.com"
+    }
+  ],
+  "icon": "https://raw.githubusercontent.com/goharbor/harbor/master/docs/img/harbor_logo.png",
+  "apiVersion": "v1",
+  "appVersion": "1.8.2"
+}`
+	artifact := &artifact.Artifact{}
+	r.repoMgr.On("Get").Return(&models.RepoRecord{}, nil)
+	r.blobFetcher.On("FetchLayer").Return([]byte(config), nil)
+	err := r.resolver.Resolve(nil, []byte(content), artifact)
+	r.Require().Nil(err)
+	r.repoMgr.AssertExpectations(r.T())
+	r.blobFetcher.AssertExpectations(r.T())
+	r.Assert().Equal("1.1.2", artifact.ExtraAttrs["version"].(string))
+	r.Assert().Equal("1.8.2", artifact.ExtraAttrs["appVersion"].(string))
+}
+
+func TestResolverTestSuite(t *testing.T) {
+	suite.Run(t, &resolverTestSuite{})
+}

src/api/artifact/abstractor/resolver/image/index.go

@@ -1,3 +1,7 @@
+// Copyright Project Harbor Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //    http://www.apache.org/licenses/LICENSE-2.0

src/api/artifact/abstractor/resolver/image/index_test.go

@@ -1,3 +1,7 @@
+// Copyright Project Harbor Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //    http://www.apache.org/licenses/LICENSE-2.0

src/api/artifact/abstractor/resolver/image/manifest_v1.go

@@ -1,3 +1,7 @@
+// Copyright Project Harbor Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //    http://www.apache.org/licenses/LICENSE-2.0

src/api/artifact/abstractor/resolver/image/manifest_v1_test.go

@@ -1,3 +1,7 @@
+// Copyright Project Harbor Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //    http://www.apache.org/licenses/LICENSE-2.0

src/api/artifact/abstractor/resolver/image/manifest_v2.go

@@ -1,3 +1,7 @@
+// Copyright Project Harbor Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //    http://www.apache.org/licenses/LICENSE-2.0

src/api/artifact/abstractor/resolver/image/manifest_v2_test.go

@@ -1,3 +1,7 @@
+// Copyright Project Harbor Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //    http://www.apache.org/licenses/LICENSE-2.0

src/api/artifact/abstractor/resolver/resolver_test.go

@@ -1,3 +1,7 @@
+// Copyright Project Harbor Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //    http://www.apache.org/licenses/LICENSE-2.0

src/api/artifact/controller.go

@@ -18,8 +18,10 @@ import (
 	"context"
 	"fmt"
 	"github.com/goharbor/harbor/src/api/artifact/abstractor"
-	// registry image resolvers
+	// register image resolvers
 	_ "github.com/goharbor/harbor/src/api/artifact/abstractor/resolver/image"
+	// register chart resolver
+	_ "github.com/goharbor/harbor/src/api/artifact/abstractor/resolver/chart"
 	"github.com/goharbor/harbor/src/common/utils/log"
 	ierror "github.com/goharbor/harbor/src/internal/error"
 	"github.com/goharbor/harbor/src/pkg/artifact"