backends

README

assembler/backends

This directory contains implementation for 2 backends for the GraphQL server side of "Refactoring the GUAC Assembler" project.

Note: This is still in experimental state and might change in the future!

Backend definition

• backends.go: defines the 2 interfaces needed to create a backend: one that contains the implementation for each resolver (to ensure backends implement everything) and one empty interface to account for the arguments needed to create the backend.

Backends

• arangodb/: Backend based on the Arango database
• neo4j/: Backend based on the Neo4j database
• testing/: simple backend with no resolvers implemented. Useful for prototyping. Also known as the in-memory backend.

Documentation

Index

• func List() []string
• func Register(name string, gb GBFunc)
• type Backend
  • func Get(name string, ctx context.Context, args BackendArgs) (Backend, error)
• type BackendArgs
• type GBFunc

Functions

func List

func List() []string

func Register

func Register(name string, gb GBFunc)

Types

type Backend

type Backend interface {
	// Retrieval read-only queries for software trees
	Artifacts(ctx context.Context, artifactSpec *model.ArtifactSpec) ([]*model.Artifact, error)
	Builders(ctx context.Context, builderSpec *model.BuilderSpec) ([]*model.Builder, error)
	Licenses(ctx context.Context, licenseSpec *model.LicenseSpec) ([]*model.License, error)
	Packages(ctx context.Context, pkgSpec *model.PkgSpec) ([]*model.Package, error)
	Sources(ctx context.Context, sourceSpec *model.SourceSpec) ([]*model.Source, error)
	Vulnerabilities(ctx context.Context, vulnSpec *model.VulnerabilitySpec) ([]*model.Vulnerability, error)

	// Retrieval read-only queries for evidence trees
	CertifyBad(ctx context.Context, certifyBadSpec *model.CertifyBadSpec) ([]*model.CertifyBad, error)
	CertifyGood(ctx context.Context, certifyGoodSpec *model.CertifyGoodSpec) ([]*model.CertifyGood, error)
	CertifyVEXStatement(ctx context.Context, certifyVEXStatementSpec *model.CertifyVEXStatementSpec) ([]*model.CertifyVEXStatement, error)
	CertifyVuln(ctx context.Context, certifyVulnSpec *model.CertifyVulnSpec) ([]*model.CertifyVuln, error)
	CertifyLegal(ctx context.Context, certifyLegalSpec *model.CertifyLegalSpec) ([]*model.CertifyLegal, error)
	HasSBOM(ctx context.Context, hasSBOMSpec *model.HasSBOMSpec) ([]*model.HasSbom, error)
	HasSlsa(ctx context.Context, hasSLSASpec *model.HasSLSASpec) ([]*model.HasSlsa, error)
	HasSourceAt(ctx context.Context, hasSourceAtSpec *model.HasSourceAtSpec) ([]*model.HasSourceAt, error)
	HasMetadata(ctx context.Context, hasMetadataSpec *model.HasMetadataSpec) ([]*model.HasMetadata, error)
	HashEqual(ctx context.Context, hashEqualSpec *model.HashEqualSpec) ([]*model.HashEqual, error)
	IsDependency(ctx context.Context, isDependencySpec *model.IsDependencySpec) ([]*model.IsDependency, error)
	IsOccurrence(ctx context.Context, isOccurrenceSpec *model.IsOccurrenceSpec) ([]*model.IsOccurrence, error)
	PkgEqual(ctx context.Context, pkgEqualSpec *model.PkgEqualSpec) ([]*model.PkgEqual, error)
	PointOfContact(ctx context.Context, pointOfContactSpec *model.PointOfContactSpec) ([]*model.PointOfContact, error)
	Scorecards(ctx context.Context, certifyScorecardSpec *model.CertifyScorecardSpec) ([]*model.CertifyScorecard, error)
	VulnEqual(ctx context.Context, vulnEqualSpec *model.VulnEqualSpec) ([]*model.VulnEqual, error)
	VulnerabilityMetadata(ctx context.Context, vulnerabilityMetadataSpec *model.VulnerabilityMetadataSpec) ([]*model.VulnerabilityMetadata, error)

	// Mutations for software trees (read-write queries)
	IngestArtifact(ctx context.Context, artifact *model.ArtifactInputSpec) (*model.Artifact, error)
	IngestArtifacts(ctx context.Context, artifacts []*model.ArtifactInputSpec) ([]*model.Artifact, error)
	IngestBuilder(ctx context.Context, builder *model.BuilderInputSpec) (*model.Builder, error)
	IngestBuilders(ctx context.Context, builders []*model.BuilderInputSpec) ([]*model.Builder, error)
	IngestLicense(ctx context.Context, license *model.LicenseInputSpec) (*model.License, error)
	IngestLicenses(ctx context.Context, licenses []*model.LicenseInputSpec) ([]*model.License, error)
	IngestPackage(ctx context.Context, pkg model.PkgInputSpec) (*model.Package, error)
	IngestPackages(ctx context.Context, pkgs []*model.PkgInputSpec) ([]*model.Package, error)
	IngestSource(ctx context.Context, source model.SourceInputSpec) (*model.Source, error)
	IngestSources(ctx context.Context, sources []*model.SourceInputSpec) ([]*model.Source, error)
	IngestVulnerability(ctx context.Context, vuln model.VulnerabilityInputSpec) (*model.Vulnerability, error)
	IngestVulnerabilities(ctx context.Context, vulns []*model.VulnerabilityInputSpec) ([]*model.Vulnerability, error)

	// Mutations for evidence trees (read-write queries, assume software trees ingested)
	IngestCertifyBad(ctx context.Context, subject model.PackageSourceOrArtifactInput, pkgMatchType *model.MatchFlags, certifyBad model.CertifyBadInputSpec) (*model.CertifyBad, error)
	IngestCertifyBads(ctx context.Context, subjects model.PackageSourceOrArtifactInputs, pkgMatchType *model.MatchFlags, certifyBads []*model.CertifyBadInputSpec) ([]*model.CertifyBad, error)
	IngestCertifyGood(ctx context.Context, subject model.PackageSourceOrArtifactInput, pkgMatchType *model.MatchFlags, certifyGood model.CertifyGoodInputSpec) (*model.CertifyGood, error)
	IngestCertifyGoods(ctx context.Context, subjects model.PackageSourceOrArtifactInputs, pkgMatchType *model.MatchFlags, certifyGoods []*model.CertifyGoodInputSpec) ([]*model.CertifyGood, error)
	IngestCertifyVuln(ctx context.Context, pkg model.PkgInputSpec, vulnerability model.VulnerabilityInputSpec, certifyVuln model.ScanMetadataInput) (*model.CertifyVuln, error)
	IngestCertifyVulns(ctx context.Context, pkgs []*model.PkgInputSpec, vulnerabilities []*model.VulnerabilityInputSpec, certifyVulns []*model.ScanMetadataInput) ([]*model.CertifyVuln, error)
	IngestCertifyLegal(ctx context.Context, subject model.PackageOrSourceInput, declaredLicenses []*model.LicenseInputSpec, discoveredLicenses []*model.LicenseInputSpec, certifyLegal *model.CertifyLegalInputSpec) (*model.CertifyLegal, error)
	IngestCertifyLegals(ctx context.Context, subjects model.PackageOrSourceInputs, declaredLicensesList [][]*model.LicenseInputSpec, discoveredLicensesList [][]*model.LicenseInputSpec, certifyLegals []*model.CertifyLegalInputSpec) ([]*model.CertifyLegal, error)
	IngestDependency(ctx context.Context, pkg model.PkgInputSpec, depPkg model.PkgInputSpec, depPkgMatchType model.MatchFlags, dependency model.IsDependencyInputSpec) (*model.IsDependency, error)
	IngestDependencies(ctx context.Context, pkgs []*model.PkgInputSpec, depPkgs []*model.PkgInputSpec, depPkgMatchType model.MatchFlags, dependencies []*model.IsDependencyInputSpec) ([]*model.IsDependency, error)
	IngestHasSbom(ctx context.Context, subject model.PackageOrArtifactInput, hasSbom model.HasSBOMInputSpec) (*model.HasSbom, error)
	IngestHasSBOMs(ctx context.Context, subjects model.PackageOrArtifactInputs, hasSBOMs []*model.HasSBOMInputSpec) ([]*model.HasSbom, error)
	IngestHasSourceAt(ctx context.Context, pkg model.PkgInputSpec, pkgMatchType model.MatchFlags, source model.SourceInputSpec, hasSourceAt model.HasSourceAtInputSpec) (*model.HasSourceAt, error)
	IngestHasSourceAts(ctx context.Context, pkgs []*model.PkgInputSpec, pkgMatchType *model.MatchFlags, sources []*model.SourceInputSpec, hasSourceAts []*model.HasSourceAtInputSpec) ([]string, error)
	IngestHasMetadata(ctx context.Context, subject model.PackageSourceOrArtifactInput, pkgMatchType *model.MatchFlags, hasMetadata model.HasMetadataInputSpec) (*model.HasMetadata, error)
	IngestBulkHasMetadata(ctx context.Context, subjects model.PackageSourceOrArtifactInputs, pkgMatchType *model.MatchFlags, hasMetadataList []*model.HasMetadataInputSpec) ([]string, error)
	IngestHashEqual(ctx context.Context, artifact model.ArtifactInputSpec, equalArtifact model.ArtifactInputSpec, hashEqual model.HashEqualInputSpec) (*model.HashEqual, error)
	IngestHashEquals(ctx context.Context, artifacts []*model.ArtifactInputSpec, otherArtifacts []*model.ArtifactInputSpec, hashEquals []*model.HashEqualInputSpec) ([]*model.HashEqual, error)
	IngestOccurrence(ctx context.Context, subject model.PackageOrSourceInput, artifact model.ArtifactInputSpec, occurrence model.IsOccurrenceInputSpec) (*model.IsOccurrence, error)
	IngestOccurrences(ctx context.Context, subjects model.PackageOrSourceInputs, artifacts []*model.ArtifactInputSpec, occurrences []*model.IsOccurrenceInputSpec) ([]*model.IsOccurrence, error)
	IngestPkgEqual(ctx context.Context, pkg model.PkgInputSpec, depPkg model.PkgInputSpec, pkgEqual model.PkgEqualInputSpec) (*model.PkgEqual, error)
	IngestPkgEquals(ctx context.Context, pkgs []*model.PkgInputSpec, otherPackages []*model.PkgInputSpec, pkgEquals []*model.PkgEqualInputSpec) ([]string, error)
	IngestPointOfContact(ctx context.Context, subject model.PackageSourceOrArtifactInput, pkgMatchType *model.MatchFlags, pointOfContact model.PointOfContactInputSpec) (*model.PointOfContact, error)
	IngestPointOfContacts(ctx context.Context, subjects model.PackageSourceOrArtifactInputs, pkgMatchType *model.MatchFlags, pointOfContacts []*model.PointOfContactInputSpec) ([]string, error)
	IngestSLSA(ctx context.Context, subject model.ArtifactInputSpec, builtFrom []*model.ArtifactInputSpec, builtBy model.BuilderInputSpec, slsa model.SLSAInputSpec) (*model.HasSlsa, error)
	IngestSLSAs(ctx context.Context, subjects []*model.ArtifactInputSpec, builtFromList [][]*model.ArtifactInputSpec, builtByList []*model.BuilderInputSpec, slsaList []*model.SLSAInputSpec) ([]*model.HasSlsa, error)
	IngestScorecard(ctx context.Context, source model.SourceInputSpec, scorecard model.ScorecardInputSpec) (*model.CertifyScorecard, error)
	IngestScorecards(ctx context.Context, sources []*model.SourceInputSpec, scorecards []*model.ScorecardInputSpec) ([]*model.CertifyScorecard, error)
	IngestVEXStatement(ctx context.Context, subject model.PackageOrArtifactInput, vulnerability model.VulnerabilityInputSpec, vexStatement model.VexStatementInputSpec) (*model.CertifyVEXStatement, error)
	IngestVEXStatements(ctx context.Context, subjects model.PackageOrArtifactInputs, vulnerabilities []*model.VulnerabilityInputSpec, vexStatements []*model.VexStatementInputSpec) ([]string, error)
	IngestVulnEqual(ctx context.Context, vulnerability model.VulnerabilityInputSpec, otherVulnerability model.VulnerabilityInputSpec, vulnEqual model.VulnEqualInputSpec) (*model.VulnEqual, error)
	IngestVulnEquals(ctx context.Context, vulnerabilities []*model.VulnerabilityInputSpec, otherVulnerabilities []*model.VulnerabilityInputSpec, vulnEquals []*model.VulnEqualInputSpec) ([]string, error)
	IngestVulnerabilityMetadata(ctx context.Context, vulnerability model.VulnerabilityInputSpec, vulnerabilityMetadata model.VulnerabilityMetadataInputSpec) (string, error)
	IngestBulkVulnerabilityMetadata(ctx context.Context, vulnerabilities []*model.VulnerabilityInputSpec, vulnerabilityMetadataList []*model.VulnerabilityMetadataInputSpec) ([]string, error)

	// Topological queries: queries where node connectivity matters more than node type
	Neighbors(ctx context.Context, node string, usingOnly []model.Edge) ([]model.Node, error)
	Node(ctx context.Context, node string) (model.Node, error)
	Nodes(ctx context.Context, nodes []string) ([]model.Node, error)
	Path(ctx context.Context, subject string, target string, maxPathLength int, usingOnly []model.Edge) ([]model.Node, error)

	// Search queries: queries to help find data in GUAC based on text search
	FindSoftware(ctx context.Context, searchText string) ([]model.PackageSourceOrArtifact, error)
}

Backend interface allows having multiple database backends for the same GraphQL interface. All backends must implement all queries specified by the GraphQL interface and this is enforced by this interface.

func Get

func Get(name string, ctx context.Context, args BackendArgs) (Backend, error)

type BackendArgs

type BackendArgs interface{}

BackendArgs interface allows each backend to specify the arguments needed to initialize (e.g., credentials).

type GBFunc

type GBFunc func(context.Context, BackendArgs) (Backend, error)