From d7594298310f81053d1d63d42f47d0ffc4053bbb Mon Sep 17 00:00:00 2001
From: "stonezdj(Daojun Zhang)" <stonezdj@gmail.com>
Date: Sat, 20 Apr 2024 10:37:30 +0800
Subject: [PATCH] Set default capability for old scanners (#20306)

Signed-off-by: stonezdj <stone.zhang@broadcom.com>
Co-authored-by: Wang Yan <wangyan@vmware.com>
---
 src/pkg/scan/rest/v1/models.go      | 12 ++++++++++--
 src/pkg/scan/rest/v1/models_test.go | 26 ++++++++++++++++++++++++++
 2 files changed, 36 insertions(+), 2 deletions(-)

diff --git a/src/pkg/scan/rest/v1/models.go b/src/pkg/scan/rest/v1/models.go
index 21352c749625..9c25c16ea76e 100644
--- a/src/pkg/scan/rest/v1/models.go
+++ b/src/pkg/scan/rest/v1/models.go
@@ -161,14 +161,22 @@ func (md *ScannerAdapterMetadata) GetCapability(mimeType string) *ScannerCapabil
 // ConvertCapability converts the capability to map, used in get scanner API
 func (md *ScannerAdapterMetadata) ConvertCapability() map[string]interface{} {
 	capabilities := make(map[string]interface{})
+	oldScanner := true
 	for _, c := range md.Capabilities {
+		if len(c.Type) > 0 {
+			oldScanner = false
+		}
 		if c.Type == ScanTypeVulnerability {
 			capabilities[supportVulnerability] = true
-		}
-		if c.Type == ScanTypeSbom {
+		} else if c.Type == ScanTypeSbom {
 			capabilities[supportSBOM] = true
 		}
 	}
+	if oldScanner && len(capabilities) == 0 {
+		// to compatible with old version scanner, suppose they should always support scan vulnerability when capability is empty
+		capabilities[supportVulnerability] = true
+		capabilities[supportSBOM] = false
+	}
 	return capabilities
 }
 
diff --git a/src/pkg/scan/rest/v1/models_test.go b/src/pkg/scan/rest/v1/models_test.go
index e96aa01788fd..96590bc4c68d 100644
--- a/src/pkg/scan/rest/v1/models_test.go
+++ b/src/pkg/scan/rest/v1/models_test.go
@@ -13,3 +13,29 @@ func TestIsSupportedMimeType(t *testing.T) {
 	// Test with an unsupported mime type
 	assert.False(t, isSupportedMimeType("unsupported/mime-type"), "isSupportedMimeType should return false for unsupported mime types")
 }
+
+func TestConvertCapability(t *testing.T) {
+	md := &ScannerAdapterMetadata{
+		Capabilities: []*ScannerCapability{
+			{Type: ScanTypeSbom},
+			{Type: ScanTypeVulnerability},
+		},
+	}
+	result := md.ConvertCapability()
+	assert.Equal(t, result[supportSBOM], true)
+	assert.Equal(t, result[supportVulnerability], true)
+}
+
+func TestConvertCapabilityOldScaner(t *testing.T) {
+	md := &ScannerAdapterMetadata{
+		Capabilities: []*ScannerCapability{
+			{
+				ConsumesMimeTypes: []string{"application/vnd.oci.image.manifest.v1+json", "application/vnd.docker.distribution.manifest.v2+json"},
+				ProducesMimeTypes: []string{MimeTypeNativeReport},
+			},
+		},
+	}
+	result := md.ConvertCapability()
+	assert.Equal(t, result[supportSBOM], false)
+	assert.Equal(t, result[supportVulnerability], true)
+}