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Reader Package Deprecation Implementation(npm) #45

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Reader Package Deprecation Implementation(npm) #45

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113 changes: 81 additions & 32 deletions npm/handler.go
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Original file line number Diff line number Diff line change
Expand Up @@ -4,16 +4,17 @@ package npm

import (
"crypto/sha256"
"encoding/json"
"fmt"
"io"
"os"
"os/exec"
"path/filepath"
"regexp"
"strings"

"github.com/opensbom-generator/parsers/internal/helper"
"github.com/opensbom-generator/parsers/meta"
"github.com/opensbom-generator/parsers/plugin"
"github.com/opensbom-generator/parsers/reader"
)

type NPM struct {
Expand Down Expand Up @@ -93,9 +94,16 @@ func (m *NPM) SetRootModule(path string) error {

// GetRootModule return root package information ex. Name, Version
func (m *NPM) GetRootModule(path string) (*meta.Package, error) {
r := reader.New(filepath.Join(path, m.metadata.Manifest[0]))
pkResult, err := r.ReadJSON()
// Join the given path with the name of the manifest file.
p := filepath.Join(path, m.metadata.Manifest[0])
// Read the contents of the manifest file.
pBytes, err := os.ReadFile(p)
if err != nil {
return nil, fmt.Errorf("unmarshalling manifest: %w", err)
}
// Unmarshal the JSON data from the manifest file into a map.
pkResult := make(map[string]interface{})
if err := json.Unmarshal(pBytes, &pkResult); err != nil {
return nil, err
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}
mod := &meta.Package{}
Expand Down Expand Up @@ -146,14 +154,32 @@ func (m *NPM) GetRootModule(path string) (*meta.Package, error) {

// ListUsedModules return brief info of installed modules, Name and Version
func (m *NPM) ListUsedModules(path string) ([]meta.Package, error) {
r := reader.New(filepath.Join(path, m.metadata.Manifest[0]))
pkResult, err := r.ReadJSON()
if err != nil {
return []meta.Package{}, err
}


// Get the path to the project's manifest file
manifestPath := filepath.Join(path, m.metadata.Manifest[0])

// Open the manifest file
manifestFile, err := os.Open(manifestPath)
if err != nil {
return []meta.Package{}, fmt.Errorf("opening manifest file: %w", err)
}
defer manifestFile.Close()

// Read the contents of the manifest file
manifestData, err := io.ReadAll(manifestFile)
if err != nil {
return []meta.Package{}, fmt.Errorf("reading manifest file: %w", err)
}
// Unmarshal the manifest data into a map
var manifestMap map[string]interface{}
if err := json.Unmarshal(manifestData, &manifestMap); err != nil {
return []meta.Package{}, fmt.Errorf("unmarshalling manifest: %w", err)
}

// Get the dependencies section of the manifest
// and extract each package name and version
modules := make([]meta.Package, 0)
deps := pkResult["dependencies"].(map[string]interface{})
deps := manifestMap["dependencies"].(map[string]interface{})

for k, v := range deps {
var mod meta.Package
Expand All @@ -162,6 +188,7 @@ func (m *NPM) ListUsedModules(path string) ([]meta.Package, error) {
modules = append(modules, mod)
}

// Return the list of dependencies
return modules, nil
}

Expand All @@ -172,11 +199,18 @@ func (m *NPM) ListModulesWithDeps(path string, globalSettingFile string) ([]meta
pk = shrink
}

r := reader.New(filepath.Join(path, pk))
pkResults, err := r.ReadJSON()
if err != nil {
return []meta.Package{}, err
}
pkPath := filepath.Join(path, pk)
pkFile, err := os.Open(pkPath)
if err != nil {
return []meta.Package{}, err
}
defer pkFile.Close()

var pkResults map[string]interface{}
err = json.NewDecoder(pkFile).Decode(&pkResults)
if err != nil {
return []meta.Package{}, err
}

deps, ok := pkResults["packages"].(map[string]interface{})
if !ok {
Expand Down Expand Up @@ -274,13 +308,21 @@ func (m *NPM) buildDependencies(path string, deps map[string]interface{}) ([]met

func getCopyright(path string) string {
licensePath := getLicenseFile(path)
if helper.Exists(licensePath) {
r := reader.New(licensePath)
s := r.StringFromFile()
return helper.GetCopyright(s)
if _, err := os.Stat(licensePath); os.IsNotExist(err) {
return ""
}

return ""
// Open the license file
licenseFile, err := os.Open(licensePath)
if err != nil {
return ""
}
defer licenseFile.Close()
// Read the license file data
licenseData, err := io.ReadAll(licenseFile)
if err != nil {
return ""
}
return helper.GetCopyright(string(licenseData))
}

func getLicenseFile(path string) string {
Expand Down Expand Up @@ -329,16 +371,23 @@ func getPackageDependencies(modDeps map[string]interface{}, t string) map[string
}

func getPackageHomepage(path string) string {
r := reader.New(path)
pkResult, err := r.ReadJSON()
if err != nil {
return ""
}
if pkResult["homepage"] != nil {
return helper.RemoveURLProtocol(pkResult["homepage"].(string))
}

return ""
file, err := os.Open(path)
if err != nil {
return ""
}
defer file.Close()

var pkResult map[string]interface{}
decoder := json.NewDecoder(file)
if err = decoder.Decode(&pkResult); err != nil {
return ""
}

if pkResult["homepage"] != nil {
return helper.RemoveURLProtocol(pkResult["homepage"].(string))
}

return ""
}

func appendNestedDependencies(deps map[string]interface{}) map[string]map[string]interface{} {
Expand Down