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package.go
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package.go
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package model
import (
"encoding/json"
"fmt"
"github.com/anchore/syft/internal/log"
"github.com/anchore/syft/syft/pkg"
"github.com/anchore/syft/syft/source"
)
// Package represents a pkg.Package object specialized for JSON marshaling and unmarshaling.
type Package struct {
PackageBasicData
PackageCustomData
}
// PackageBasicData contains non-ambiguous values (type-wise) from pkg.Package.
type PackageBasicData struct {
ID string `json:"id"`
Name string `json:"name"`
Version string `json:"version"`
Type pkg.Type `json:"type"`
FoundBy string `json:"foundBy"`
Locations []source.Coordinates `json:"locations"`
Licenses []string `json:"licenses"`
Language pkg.Language `json:"language"`
CPEs []string `json:"cpes"`
PURL string `json:"purl"`
}
// PackageCustomData contains ambiguous values (type-wise) from pkg.Package.
type PackageCustomData struct {
MetadataType pkg.MetadataType `json:"metadataType"`
Metadata interface{} `json:"metadata"`
}
// packageMetadataUnpacker is all values needed from Package to disambiguate ambiguous fields during json unmarshaling.
type packageMetadataUnpacker struct {
MetadataType pkg.MetadataType `json:"metadataType"`
Metadata json.RawMessage `json:"metadata"`
}
func (p *packageMetadataUnpacker) String() string {
return fmt.Sprintf("metadataType: %s, metadata: %s", p.MetadataType, string(p.Metadata))
}
// UnmarshalJSON is a custom unmarshaller for handling basic values and values with ambiguous types.
// nolint:funlen
func (p *Package) UnmarshalJSON(b []byte) error {
var basic PackageBasicData
if err := json.Unmarshal(b, &basic); err != nil {
return err
}
p.PackageBasicData = basic
var unpacker packageMetadataUnpacker
if err := json.Unmarshal(b, &unpacker); err != nil {
log.Warnf("failed to unmarshall into packageMetadataUnpacker: %v", err)
return err
}
p.MetadataType = unpacker.MetadataType
switch p.MetadataType {
case pkg.ApkMetadataType:
var payload pkg.ApkMetadata
if err := json.Unmarshal(unpacker.Metadata, &payload); err != nil {
return err
}
p.Metadata = payload
case pkg.RpmdbMetadataType:
var payload pkg.RpmdbMetadata
if err := json.Unmarshal(unpacker.Metadata, &payload); err != nil {
return err
}
p.Metadata = payload
case pkg.DpkgMetadataType:
var payload pkg.DpkgMetadata
if err := json.Unmarshal(unpacker.Metadata, &payload); err != nil {
return err
}
p.Metadata = payload
case pkg.JavaMetadataType:
var payload pkg.JavaMetadata
if err := json.Unmarshal(unpacker.Metadata, &payload); err != nil {
return err
}
p.Metadata = payload
case pkg.RustCargoPackageMetadataType:
var payload pkg.CargoPackageMetadata
if err := json.Unmarshal(unpacker.Metadata, &payload); err != nil {
return err
}
p.Metadata = payload
case pkg.GemMetadataType:
var payload pkg.GemMetadata
if err := json.Unmarshal(unpacker.Metadata, &payload); err != nil {
return err
}
p.Metadata = payload
case pkg.KbPackageMetadataType:
var payload pkg.KbPackageMetadata
if err := json.Unmarshal(unpacker.Metadata, &payload); err != nil {
return err
}
p.Metadata = payload
case pkg.PythonPackageMetadataType:
var payload pkg.PythonPackageMetadata
if err := json.Unmarshal(unpacker.Metadata, &payload); err != nil {
return err
}
p.Metadata = payload
case pkg.NpmPackageJSONMetadataType:
var payload pkg.NpmPackageJSONMetadata
if err := json.Unmarshal(unpacker.Metadata, &payload); err != nil {
return err
}
p.Metadata = payload
}
return nil
}