Files
trivy/pkg/dependency/parser/php/composer/parse.go
2024-02-26 05:55:15 +00:00

113 lines
2.9 KiB
Go

package composer
import (
"io"
"sort"
"strings"
"github.com/liamg/jfather"
"golang.org/x/exp/maps"
"golang.org/x/xerrors"
"github.com/aquasecurity/trivy/pkg/dependency/parser/types"
"github.com/aquasecurity/trivy/pkg/dependency/parser/utils"
"github.com/aquasecurity/trivy/pkg/log"
xio "github.com/aquasecurity/trivy/pkg/x/io"
)
type lockFile struct {
Packages []packageInfo `json:"packages"`
}
type packageInfo struct {
Name string `json:"name"`
Version string `json:"version"`
Require map[string]string `json:"require"`
License []string `json:"license"`
StartLine int
EndLine int
}
type Parser struct{}
func NewParser() types.Parser {
return &Parser{}
}
func (p *Parser) Parse(r xio.ReadSeekerAt) ([]types.Library, []types.Dependency, error) {
var lockFile lockFile
input, err := io.ReadAll(r)
if err != nil {
return nil, nil, xerrors.Errorf("read error: %w", err)
}
if err = jfather.Unmarshal(input, &lockFile); err != nil {
return nil, nil, xerrors.Errorf("decode error: %w", err)
}
libs := make(map[string]types.Library)
foundDeps := make(map[string][]string)
for _, pkg := range lockFile.Packages {
lib := types.Library{
ID: utils.PackageID(pkg.Name, pkg.Version),
Name: pkg.Name,
Version: pkg.Version,
Indirect: false, // composer.lock file doesn't have info about Direct/Indirect deps. Will think that all dependencies are Direct
License: strings.Join(pkg.License, ", "),
Locations: []types.Location{
{
StartLine: pkg.StartLine,
EndLine: pkg.EndLine,
},
},
}
libs[lib.Name] = lib
var dependsOn []string
for depName := range pkg.Require {
// Require field includes required php version, skip this
// Also skip PHP extensions
if depName == "php" || strings.HasPrefix(depName, "ext") {
continue
}
dependsOn = append(dependsOn, depName) // field uses range of versions, so later we will fill in the versions from the libraries
}
if len(dependsOn) > 0 {
foundDeps[lib.ID] = dependsOn
}
}
// fill deps versions
var deps []types.Dependency
for libID, depsOn := range foundDeps {
var dependsOn []string
for _, depName := range depsOn {
if lib, ok := libs[depName]; ok {
dependsOn = append(dependsOn, lib.ID)
continue
}
log.Logger.Debugf("unable to find version of %s", depName)
}
sort.Strings(dependsOn)
deps = append(deps, types.Dependency{
ID: libID,
DependsOn: dependsOn,
})
}
libSlice := maps.Values(libs)
sort.Sort(types.Libraries(libSlice))
sort.Sort(types.Dependencies(deps))
return libSlice, deps, nil
}
// UnmarshalJSONWithMetadata needed to detect start and end lines of deps
func (t *packageInfo) UnmarshalJSONWithMetadata(node jfather.Node) error {
if err := node.Decode(&t); err != nil {
return err
}
// Decode func will overwrite line numbers if we save them first
t.StartLine = node.Range().Start.Line
t.EndLine = node.Range().End.Line
return nil
}