add cosign signature icon (goharbor#16533)

Return icon message for UI to render

Signed-off-by: Wang Yan <wangyan@vmware.com>

src/controller/icon/controller.go

@@ -37,16 +37,37 @@ import (
 )
 
 var (
-	builtInIcons = map[string]string{
-		icon.DigestOfIconImage:   "./icons/image.png",
-		icon.DigestOfIconChart:   "./icons/chart.png",
-		icon.DigestOfIconCNAB:    "./icons/cnab.png",
-		icon.DigestOfIconDefault: "./icons/default.png",
+	builtInIcons = map[string]buildInIcon{
+		icon.DigestOfIconImage: {
+			path:   "./icons/image.png",
+			resize: true,
+		},
+		icon.DigestOfIconChart: {
+			path:   "./icons/chart.png",
+			resize: true,
+		},
+		icon.DigestOfIconCNAB: {
+			path:   "./icons/cnab.png",
+			resize: true,
+		},
+		icon.DigestOfIconAccCosign: {
+			path:   "./icons/cosign.png",
+			resize: false,
+		},
+		icon.DigestOfIconDefault: {
+			path:   "./icons/default.png",
+			resize: true,
+		},
 	}
 	// Ctl is a global icon controller instance
 	Ctl = NewController()
 )
 
+type buildInIcon struct {
+	path   string
+	resize bool
+}
+
 // Icon model for artifact icon
 type Icon struct {
 	ContentType string
@@ -84,9 +105,9 @@ func (c *controller) Get(ctx context.Context, digest string) (*Icon, error) {
 		iconFile io.ReadCloser
 		err      error
 	)
-	// for the fixed icons: image, helm chart, CNAB and unknown
-	if path, exist := builtInIcons[digest]; exist {
-		iconFile, err = os.Open(path)
+
+	if i, exist := builtInIcons[digest]; exist {
+		iconFile, err = os.Open(i.path)
 		if err != nil {
 			return nil, err
 		}
@@ -118,7 +139,13 @@ func (c *controller) Get(ctx context.Context, digest string) (*Icon, error) {
 	}
 
 	// resize the icon to 50x50
-	img = resize.Thumbnail(50, 50, img, resize.NearestNeighbor)
+	if i, exist := builtInIcons[digest]; exist {
+		if i.resize {
+			img = resize.Thumbnail(50, 50, img, resize.NearestNeighbor)
+		}
+	} else {
+		img = resize.Thumbnail(50, 50, img, resize.NearestNeighbor)
+	}
 
 	// encode the resized icon to png
 	buf := &bytes.Buffer{}

src/lib/icon/const.go

@@ -9,5 +9,5 @@ const (
 
 	// ToDo add the accessories images
 	DigestOfIconAccDefault = ""
-	DigestOfIconAccCosign  = ""
+	DigestOfIconAccCosign  = "sha256:20401d5b3a0f6dbc607c8d732eb08471af4ae6b19811a4efce8c6a724aed2882"
 )

src/pkg/accessory/manager.go

@@ -17,6 +17,7 @@ package accessory
 import (
 	"context"
 	"github.com/goharbor/harbor/src/lib/errors"
+	"github.com/goharbor/harbor/src/lib/icon"
 	"github.com/goharbor/harbor/src/lib/q"
 	"github.com/goharbor/harbor/src/pkg/accessory/dao"
 	"github.com/goharbor/harbor/src/pkg/accessory/model"
@@ -28,6 +29,11 @@ import (
 var (
 	// Mgr is a global artifact manager instance
 	Mgr = NewManager()
+
+	// icon digests for each known type
+	defaultIcons = map[string]string{
+		model.TypeCosignSignature: icon.DigestOfIconAccCosign,
+	}
 )
 
 // Manager is the only interface of artifact module to provide the management functions for artifacts
@@ -93,6 +99,7 @@ func (m *manager) Get(ctx context.Context, id int64) (model.Accessory, error) {
 		Size:          acc.Size,
 		Digest:        acc.Digest,
 		CreatTime:     acc.CreationTime,
+		Icon:          m.GetIcon(acc.Type),
 	})
 }
 
@@ -114,6 +121,7 @@ func (m *manager) List(ctx context.Context, query *q.Query) ([]model.Accessory,
 			Size:          accD.Size,
 			Digest:        accD.Digest,
 			CreatTime:     accD.CreationTime,
+			Icon:          m.GetIcon(accD.Type),
 		})
 		if err != nil {
 			return nil, errors.New(err).WithCode(errors.BadRequestCode)
@@ -142,3 +150,11 @@ func (m *manager) DeleteAccessories(ctx context.Context, q *q.Query) error {
 	_, err := m.dao.DeleteAccessories(ctx, q)
 	return err
 }
+
+func (m *manager) GetIcon(accType string) string {
+	accIcon := ""
+	if i, ok := defaultIcons[accType]; ok {
+		accIcon = i
+	}
+	return accIcon
+}

src/pkg/accessory/manager_test.go

@@ -104,6 +104,16 @@ func (m *managerTestSuite) TestDeleteOfArtifact() {
 	m.dao.AssertExpectations(m.T())
 }
 
+func (m *managerTestSuite) TestGetIcon() {
+	var icon string
+	icon = m.mgr.GetIcon("")
+	m.Require().Empty(icon, "empty icon")
+	icon = m.mgr.GetIcon("signature.cosign")
+	m.Require().Equal("sha256:20401d5b3a0f6dbc607c8d732eb08471af4ae6b19811a4efce8c6a724aed2882", icon)
+	icon = m.mgr.GetIcon("unknown")
+	m.Require().Empty(icon, "empty icon")
+}
+
 func TestManager(t *testing.T) {
 	suite.Run(t, &managerTestSuite{})
 }

src/pkg/accessory/model/accessory.go

@@ -74,6 +74,7 @@ type AccessoryData struct {
 	Size          int64     `json:"size"`
 	Digest        string    `json:"digest"`
 	CreatTime     time.Time `json:"creation_time"`
+	Icon          string    `json:"icon"`
 }
 
 // Accessory Independent, but linked to an existing subject artifact, which enabling the extensibility of an OCI artifact

src/server/v2.0/handler/model/accessory.go

@@ -20,7 +20,7 @@ func (a *Accessory) ToSwagger() *models.Accessory {
 		Size:              a.Size,
 		Digest:            a.Digest,
 		Type:              a.Type,
-		Icon:              "",
+		Icon:              a.Icon,
 		CreationTime:      strfmt.DateTime(a.CreatTime),
 	}
 }