feat(report): Include dependencies into scan result and cyclondex for supply chain security on Integration with GitHub Security Alerts (#1584)

* feat(report): Enhance scan result and cyclondex for supply chain security on Integration with GitHub Security Alerts

* derive ecosystem/version from dependency graph

* fix vars name && fetch manifest info on GSA && arrange ghpkgToPURL structure

* fix miscs

* typo in error message

* fix ecosystem equally to trivy

* miscs

* refactoring

* recursive dependency graph pagination

* change var name && update comments

* omit map type of ghpkgToPURL in signatures

* fix vars name

* goimports

* make fmt

* fix comment

Co-authored-by: MaineK00n <mainek00n.1229@gmail.com>

models/github.go

@@ -0,0 +1,86 @@
+package models
+
+import (
+	"strings"
+
+	ftypes "github.com/aquasecurity/trivy/pkg/fanal/types"
+)
+
+// DependencyGraphManifests has a map of DependencyGraphManifest
+// key: Filename
+type DependencyGraphManifests map[string]DependencyGraphManifest
+
+type DependencyGraphManifest struct {
+	Filename     string       `json:"filename"`
+	Repository   string       `json:"repository"`
+	Dependencies []Dependency `json:"dependencies"`
+}
+
+// Ecosystem returns a name of ecosystem(or package manager) of manifest(lock) file in trivy way
+// https://docs.github.com/en/code-security/supply-chain-security/understanding-your-software-supply-chain/about-the-dependency-graph#supported-package-ecosystems
+func (m DependencyGraphManifest) Ecosystem() string {
+	switch {
+	case strings.HasSuffix(m.Filename, "Cargo.lock"),
+		strings.HasSuffix(m.Filename, "Cargo.toml"):
+		return ftypes.Cargo // Rust
+	case strings.HasSuffix(m.Filename, "composer.lock"),
+		strings.HasSuffix(m.Filename, "composer.json"):
+		return ftypes.Composer // PHP
+	case strings.HasSuffix(m.Filename, ".csproj"),
+		strings.HasSuffix(m.Filename, ".vbproj"),
+		strings.HasSuffix(m.Filename, ".nuspec"),
+		strings.HasSuffix(m.Filename, ".vcxproj"),
+		strings.HasSuffix(m.Filename, ".fsproj"),
+		strings.HasSuffix(m.Filename, "packages.config"):
+		return ftypes.NuGet // .NET languages (C#, F#, VB), C++
+	case strings.HasSuffix(m.Filename, "go.sum"),
+		strings.HasSuffix(m.Filename, "go.mod"):
+		return ftypes.GoModule // Go
+	case strings.HasSuffix(m.Filename, "pom.xml"):
+		return ftypes.Pom // Java, Scala
+	case strings.HasSuffix(m.Filename, "package-lock.json"),
+		strings.HasSuffix(m.Filename, "package.json"):
+		return ftypes.Npm // JavaScript
+	case strings.HasSuffix(m.Filename, "yarn.lock"):
+		return ftypes.Yarn // JavaScript
+	case strings.HasSuffix(m.Filename, "requirements.txt"),
+		strings.HasSuffix(m.Filename, "requirements-dev.txt"),
+		strings.HasSuffix(m.Filename, "setup.py"):
+		return ftypes.Pip // Python
+	case strings.HasSuffix(m.Filename, "Pipfile.lock"),
+		strings.HasSuffix(m.Filename, "Pipfile"):
+		return ftypes.Pipenv // Python
+	case strings.HasSuffix(m.Filename, "poetry.lock"),
+		strings.HasSuffix(m.Filename, "pyproject.toml"):
+		return ftypes.Poetry // Python
+	case strings.HasSuffix(m.Filename, "Gemfile.lock"),
+		strings.HasSuffix(m.Filename, "Gemfile"):
+		return ftypes.Bundler // Ruby
+	case strings.HasSuffix(m.Filename, ".gemspec"):
+		return ftypes.GemSpec // Ruby
+	case strings.HasSuffix(m.Filename, "pubspec.lock"),
+		strings.HasSuffix(m.Filename, "pubspec.yaml"):
+		return "pub" // Dart
+	case strings.HasSuffix(m.Filename, ".yml"),
+		strings.HasSuffix(m.Filename, ".yaml"):
+		return "actions" // GitHub Actions workflows
+	default:
+		return "unknown"
+	}
+}
+
+type Dependency struct {
+	PackageName    string `json:"packageName"`
+	PackageManager string `json:"packageManager"`
+	Repository     string `json:"repository"`
+	Requirements   string `json:"requirements"`
+}
+
+func (d Dependency) Version() string {
+	s := strings.Split(d.Requirements, " ")
+	if len(s) == 2 && s[0] == "=" {
+		return s[1]
+	}
+	// in case of ranged version
+	return ""
+}