add prototype for jvm detector

Signed-off-by: Alex Goodman <[email protected]>

internal/constants.go

@@ -3,5 +3,5 @@ package internal
 const (
 	// JSONSchemaVersion is the current schema version output by the JSON encoder
 	// This is roughly following the "SchemaVer" guidelines for versioning the JSON schema. Please see schema/json/README.md for details on how to increment.
-	JSONSchemaVersion = "16.0.15"
+	JSONSchemaVersion = "16.0.16"
 )

internal/relationship/exclude_binaries_by_file_ownership_overlap.go

@@ -25,55 +25,102 @@ var (
 	binaryMetadataTypes = []string{
 		reflect.TypeOf(pkg.ELFBinaryPackageNoteJSONPayload{}).Name(),
 		reflect.TypeOf(pkg.BinarySignature{}).Name(),
+		reflect.TypeOf(pkg.JvmInstallation{}).Name(),
 	}
 )
 
 func ExcludeBinariesByFileOwnershipOverlap(accessor sbomsync.Accessor) {
 	accessor.WriteToSBOM(func(s *sbom.SBOM) {
 		for _, r := range s.Relationships {
-			if excludeBinaryByFileOwnershipOverlap(r, s.Artifacts.Packages) {
-				s.Artifacts.Packages.Delete(r.To.ID())
-				s.Relationships = RemoveRelationshipsByID(s.Relationships, r.To.ID())
+			if idToRemove := excludeByFileOwnershipOverlap(r, s.Artifacts.Packages); idToRemove != "" {
+				s.Artifacts.Packages.Delete(idToRemove)
+				s.Relationships = RemoveRelationshipsByID(s.Relationships, idToRemove)
 			}
 		}
 	})
 }
 
-// excludeBinaryByFileOwnershipOverlap will remove packages from a collection given the following properties are true
-// 1) the relationship between packages is OwnershipByFileOverlap
-// 2) the parent is an "os" package
-// 3) the child is a synthetic package generated by the binary cataloger
-// 4) the package names are identical
-// This was implemented as a way to help resolve: https://github.com/anchore/syft/issues/931
-func excludeBinaryByFileOwnershipOverlap(r artifact.Relationship, c *pkg.Collection) bool {
+// excludeByFileOwnershipOverlap will remove packages that should be overridden by a more authoritative package,
+// such as an OS package or a package from a cataloger with more specific information being raised up.
+func excludeByFileOwnershipOverlap(r artifact.Relationship, c *pkg.Collection) artifact.ID {
 	if artifact.OwnershipByFileOverlapRelationship != r.Type {
-		return false
+		return ""
 	}
 
 	parent := c.Package(r.From.ID())
 	if parent == nil {
-		return false
-	}
-
-	parentInExclusion := slices.Contains(osCatalogerTypes, parent.Type)
-	if !parentInExclusion {
-		return false
+		return ""
 	}
 
 	child := c.Package(r.To.ID())
 	if child == nil {
-		return false
+		return ""
+	}
+
+	if idToRemove := identifyOverlappingOSRelationship(parent, child); idToRemove != "" {
+		return idToRemove
+	}
+
+	if idToRemove := identifyOverlappingJVMRelationship(parent, child); idToRemove != "" {
+		return idToRemove
+	}
+
+	return ""
+}
+
+// identifyOverlappingJVMRelationship indicates the package to remove if this is a binary -> binary pkg relationship
+// with a java binary signature package and a more authoritative JVM release package.
+func identifyOverlappingJVMRelationship(parent *pkg.Package, child *pkg.Package) artifact.ID {
+	if !slices.Contains(binaryCatalogerTypes, parent.Type) {
+		return ""
+	}
+
+	if !slices.Contains(binaryCatalogerTypes, child.Type) {
+		return ""
+	}
+
+	if child.Metadata == nil {
+		return ""
+	}
+
+	var (
+		foundJVM   bool
+		idToRemove artifact.ID
+	)
+	for _, p := range []*pkg.Package{parent, child} {
+		switch p.Metadata.(type) {
+		case pkg.JvmInstallation:
+			foundJVM = true
+		default:
+			idToRemove = p.ID()
+		}
+	}
+
+	if foundJVM {
+		return idToRemove
+	}
+
+	return ""
+}
+
+// identifyOverlappingOSRelationship indicates the package ID to remove if this is an OS pkg -> bin pkg relationship.
+// This was implemented as a way to help resolve: https://github.com/anchore/syft/issues/931
+func identifyOverlappingOSRelationship(parent *pkg.Package, child *pkg.Package) artifact.ID {
+	if !slices.Contains(osCatalogerTypes, parent.Type) {
+		return ""
 	}
 
 	if slices.Contains(binaryCatalogerTypes, child.Type) {
-		return true
+		return child.ID()
 	}
 
 	if child.Metadata == nil {
-		return false
+		return ""
 	}
 
-	childMetadataType := reflect.TypeOf(child.Metadata)
+	if !slices.Contains(binaryMetadataTypes, reflect.TypeOf(child.Metadata).Name()) {
+		return ""
+	}
 
-	return slices.Contains(binaryMetadataTypes, childMetadataType.Name())
+	return child.ID()
 }

internal/relationship/exclude_binaries_by_file_ownership_overlap_test.go

@@ -3,18 +3,17 @@ package relationship
 import (
 	"testing"
 
+	"github.com/stretchr/testify/assert"
+
 	"github.com/anchore/syft/syft/artifact"
 	"github.com/anchore/syft/syft/pkg"
 )
 
-func TestExclude(t *testing.T) {
+func TestExcludeByFileOwnershipOverlap(t *testing.T) {
 	packageA := pkg.Package{Name: "package-a", Type: pkg.ApkPkg}
-	packageB := pkg.Package{Name: "package-a", Type: pkg.PythonPkg}
-	packageC := pkg.Package{Name: "package-a", Type: pkg.BinaryPkg}
-	packageD := pkg.Package{Name: "package-d", Type: pkg.BinaryPkg}
-	packageE := pkg.Package{Name: "package-e", Type: pkg.RpmPkg, Metadata: pkg.ELFBinaryPackageNoteJSONPayload{Type: "rpm"}}
-	packageF := pkg.Package{Name: "package-f", Type: pkg.RpmPkg, Metadata: pkg.BinarySignature{}}
-	for _, p := range []*pkg.Package{&packageA, &packageB, &packageC, &packageD, &packageE, &packageF} {
+	packageB := pkg.Package{Name: "package-b", Type: pkg.BinaryPkg, Metadata: pkg.JvmInstallation{}}
+	packageC := pkg.Package{Name: "package-c", Type: pkg.BinaryPkg, Metadata: pkg.ELFBinaryPackageNoteJSONPayload{Type: "rpm"}}
+	for _, p := range []*pkg.Package{&packageA, &packageB, &packageC} {
 		p := p
 		p.SetID()
 	}
@@ -26,73 +25,152 @@ func TestExclude(t *testing.T) {
 		shouldExclude bool
 	}{
 		{
-			name: "no exclusions from os -> python",
-			relationship: artifact.Relationship{
-				Type: artifact.OwnershipByFileOverlapRelationship,
-				From: packageA,
-				To:   packageB,
-			},
-			packages:      pkg.NewCollection(packageA, packageB),
-			shouldExclude: false,
-		},
-		{
-			name: "exclusions from os -> binary",
+			// prove that OS -> bin exclusions are wired
+			name: "exclusions from os -> elf binary (as RPM)",
 			relationship: artifact.Relationship{
 				Type: artifact.OwnershipByFileOverlapRelationship,
-				From: packageA,
-				To:   packageC,
+				From: packageA, // OS
+				To:   packageC, // ELF binary
 			},
 			packages:      pkg.NewCollection(packageA, packageC),
 			shouldExclude: true,
 		},
 		{
-			name: "exclusions from os -> elf binary (as RPM)",
+			// prove that bin -> JVM exclusions are wired
+			name: "exclusions from binary -> binary with JVM metadata",
 			relationship: artifact.Relationship{
 				Type: artifact.OwnershipByFileOverlapRelationship,
-				From: packageA,
-				To:   packageE,
+				From: packageB, // binary with JVM metadata
+				To:   packageC, // binary
 			},
-			packages:      pkg.NewCollection(packageA, packageE),
+			packages:      pkg.NewCollection(packageC, packageB),
 			shouldExclude: true,
 		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			actualExclude := excludeByFileOwnershipOverlap(test.relationship, test.packages)
+			didExclude := actualExclude != ""
+			if !didExclude && test.shouldExclude {
+				t.Errorf("expected to exclude relationship %+v", test.relationship)
+			}
+		})
+
+	}
+}
+
+func TestIdentifyOverlappingOSRelationship(t *testing.T) {
+	packageA := pkg.Package{Name: "package-a", Type: pkg.ApkPkg} // OS package
+	packageB := pkg.Package{Name: "package-b", Type: pkg.BinaryPkg}
+	packageC := pkg.Package{Name: "package-c", Type: pkg.BinaryPkg, Metadata: pkg.BinarySignature{}}
+	packageD := pkg.Package{Name: "package-d", Type: pkg.PythonPkg} // Language package
+	packageE := pkg.Package{Name: "package-e", Type: pkg.BinaryPkg, Metadata: pkg.ELFBinaryPackageNoteJSONPayload{}}
+
+	for _, p := range []*pkg.Package{&packageA, &packageB, &packageC, &packageD, &packageE} {
+		p.SetID()
+	}
+
+	tests := []struct {
+		name       string
+		parent     *pkg.Package
+		child      *pkg.Package
+		expectedID artifact.ID
+	}{
 		{
-			name: "exclusions from os -> binary (masquerading as RPM)",
-			relationship: artifact.Relationship{
-				Type: artifact.OwnershipByFileOverlapRelationship,
-				From: packageA,
-				To:   packageF,
-			},
-			packages:      pkg.NewCollection(packageA, packageF),
-			shouldExclude: true,
+			name:       "OS -> binary without metadata",
+			parent:     &packageA,
+			child:      &packageB,
+			expectedID: packageB.ID(), // OS package to binary package, should return child ID
 		},
 		{
-			name: "no exclusions from python -> binary",
-			relationship: artifact.Relationship{
-				Type: artifact.OwnershipByFileOverlapRelationship,
-				From: packageB,
-				To:   packageC,
-			},
-			packages:      pkg.NewCollection(packageB, packageC),
-			shouldExclude: false,
+			name:       "OS -> binary with binary metadata",
+			parent:     &packageA,
+			child:      &packageC,
+			expectedID: packageC.ID(), // OS package to binary package with binary metadata, should return child ID
 		},
 		{
-			name: "no exclusions for different package names",
-			relationship: artifact.Relationship{
-				Type: artifact.OwnershipByFileOverlapRelationship,
-				From: packageA,
-				To:   packageD,
-			},
-			packages:      pkg.NewCollection(packageA, packageD),
-			shouldExclude: false,
+			name:       "OS -> non-binary package",
+			parent:     &packageA,
+			child:      &packageD,
+			expectedID: "", // OS package to non-binary package, no exclusion
+		},
+		{
+			name:       "OS -> binary with ELF metadata",
+			parent:     &packageA,
+			child:      &packageE,
+			expectedID: packageE.ID(), // OS package to binary package with ELF metadata, should return child ID
+		},
+		{
+			name:       "non-OS parent",
+			parent:     &packageD, // non-OS package
+			child:      &packageC,
+			expectedID: "", // non-OS parent, no exclusion
 		},
 	}
 
-	for _, test := range tests {
-		t.Run(test.name, func(t *testing.T) {
-			if !excludeBinaryByFileOwnershipOverlap(test.relationship, test.packages) && test.shouldExclude {
-				t.Errorf("expected to exclude relationship %+v", test.relationship)
-			}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			resultID := identifyOverlappingOSRelationship(tt.parent, tt.child)
+			assert.Equal(t, tt.expectedID, resultID)
 		})
+	}
+}
+
+func TestIdentifyOverlappingJVMRelationship(t *testing.T) {
+
+	packageA := pkg.Package{Name: "package-a", Type: pkg.BinaryPkg}
+	packageB := pkg.Package{Name: "package-b", Type: pkg.BinaryPkg, Metadata: pkg.BinarySignature{}}
+	packageC := pkg.Package{Name: "package-c", Type: pkg.BinaryPkg, Metadata: pkg.JvmInstallation{}}
+	packageD := pkg.Package{Name: "package-d", Type: pkg.PythonPkg}
+	packageE := pkg.Package{Name: "package-e", Type: pkg.BinaryPkg}
+
+	for _, p := range []*pkg.Package{&packageA, &packageB, &packageC, &packageD, &packageE} {
+		p.SetID()
+	}
+
+	tests := []struct {
+		name       string
+		parent     *pkg.Package
+		child      *pkg.Package
+		expectedID artifact.ID
+	}{
+		{
+			name:       "binary -> binary with JVM installation",
+			parent:     &packageA,
+			child:      &packageC,
+			expectedID: packageA.ID(), // JVM found, return BinaryPkg ID
+		},
+		{
+			name:       "binary -> binary with binary signature",
+			parent:     &packageA,
+			child:      &packageB,
+			expectedID: "", // binary signatures only found, no exclusion
+		},
+		{
+			name:       "binary -> python (non-binary child)",
+			parent:     &packageA,
+			child:      &packageD,
+			expectedID: "", // non-binary child, no exclusion
+		},
+		{
+			name:       "no JVM or signature in binary -> binary",
+			parent:     &packageA,
+			child:      &packageE,
+			expectedID: "", // no JVM or binary signature, no exclusion
+		},
+		{
+			name:       "non-binary parent",
+			parent:     &packageD,
+			child:      &packageC,
+			expectedID: "", // non-binary parent, no exclusion
+		},
+	}
 
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			resultID := identifyOverlappingJVMRelationship(tt.parent, tt.child)
+			assert.Equal(t, tt.expectedID, resultID)
+		})
 	}
 }

internal/task/package_tasks.go

@@ -125,6 +125,7 @@ func DefaultPackageTaskFactories() PackageTaskFactories {
 		newSimplePackageTaskFactory(binary.NewELFPackageCataloger, pkgcataloging.DeclaredTag, pkgcataloging.DirectoryTag, pkgcataloging.InstalledTag, pkgcataloging.ImageTag, "binary", "elf-package"),
 		newSimplePackageTaskFactory(githubactions.NewActionUsageCataloger, pkgcataloging.DeclaredTag, pkgcataloging.DirectoryTag, "github", "github-actions"),
 		newSimplePackageTaskFactory(githubactions.NewWorkflowUsageCataloger, pkgcataloging.DeclaredTag, pkgcataloging.DirectoryTag, "github", "github-actions"),
+		newSimplePackageTaskFactory(java.NewJvmDistributionCataloger, pkgcataloging.DeclaredTag, pkgcataloging.DirectoryTag, pkgcataloging.InstalledTag, pkgcataloging.ImageTag, "java", "jvm", "jdk", "jre"),
 		newPackageTaskFactory(
 			func(cfg CatalogingFactoryConfig) pkg.Cataloger {
 				return kernel.NewLinuxKernelCataloger(cfg.PackagesConfig.LinuxKernel)