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feat: add SBOM analyzer (aquasecurity#4210)
Co-authored-by: DmitriyLewen <91113035+DmitriyLewen@users.noreply.github.com> Co-authored-by: DmitriyLewen <dmitriy.lewen@smartforce.io>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,85 @@ | ||
| package sbom | ||
|
|
||
| import ( | ||
| "context" | ||
| "os" | ||
| "path" | ||
| "strings" | ||
|
|
||
| "golang.org/x/xerrors" | ||
|
|
||
| "github.com/aquasecurity/trivy/pkg/fanal/analyzer" | ||
| "github.com/aquasecurity/trivy/pkg/sbom" | ||
| ) | ||
|
|
||
| func init() { | ||
| analyzer.RegisterAnalyzer(&sbomAnalyzer{}) | ||
| } | ||
|
|
||
| const version = 1 | ||
|
|
||
| var requiredSuffixes = []string{ | ||
| ".spdx", | ||
| ".spdx.json", | ||
| ".cdx", | ||
| ".cdx.json", | ||
| } | ||
|
|
||
| type sbomAnalyzer struct{} | ||
|
|
||
| func (a sbomAnalyzer) Analyze(_ context.Context, input analyzer.AnalysisInput) (*analyzer.AnalysisResult, error) { | ||
| // Format auto-detection | ||
| format, err := sbom.DetectFormat(input.Content) | ||
| if err != nil { | ||
| return nil, xerrors.Errorf("failed to detect SBOM format: %w", err) | ||
| } | ||
|
|
||
| bom, err := sbom.Decode(input.Content, format) | ||
| if err != nil { | ||
| return nil, xerrors.Errorf("SBOM decode error: %w", err) | ||
| } | ||
|
|
||
| // For Bitnami images | ||
| if strings.HasPrefix(input.FilePath, "opt/bitnami/") { | ||
| dir, file := path.Split(input.FilePath) | ||
| bin := strings.TrimPrefix(file, ".spdx-") | ||
| bin = strings.TrimSuffix(bin, ".spdx") | ||
| binPath := path.Join(input.FilePath, "../bin", bin) | ||
| for i, app := range bom.Applications { | ||
| // Replace the SBOM path with the binary path | ||
| bom.Applications[i].FilePath = binPath | ||
|
|
||
| for j, pkg := range app.Libraries { | ||
| if pkg.FilePath == "" { | ||
| continue | ||
| } | ||
| // Set the absolute path since SBOM in Bitnami images contain a relative path | ||
| // e.g. modules/apm/elastic-apm-agent-1.36.0.jar | ||
| // => opt/bitnami/elasticsearch/modules/apm/elastic-apm-agent-1.36.0.jar | ||
| bom.Applications[i].Libraries[j].FilePath = path.Join(dir, pkg.FilePath) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| return &analyzer.AnalysisResult{ | ||
| PackageInfos: bom.Packages, | ||
| Applications: bom.Applications, | ||
| }, nil | ||
| } | ||
|
|
||
| func (a sbomAnalyzer) Required(filePath string, _ os.FileInfo) bool { | ||
| for _, suffix := range requiredSuffixes { | ||
| if strings.HasSuffix(filePath, suffix) { | ||
| return true | ||
| } | ||
| } | ||
| return false | ||
| } | ||
|
|
||
| func (a sbomAnalyzer) Type() analyzer.Type { | ||
| return analyzer.TypeSBOM | ||
| } | ||
|
|
||
| func (a sbomAnalyzer) Version() int { | ||
| return version | ||
| } |
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