Files
pmg/pkg/common/extractor.go

88 lines
2.7 KiB
Go

package common
import (
"fmt"
"os"
"path/filepath"
"github.com/safedep/dry/crypto"
"github.com/safedep/pmg/pkg/common/utils"
"github.com/safedep/pmg/pkg/models"
)
// ExtractorOptions holds configuration for running an extractor script
type ExtractorOptions struct {
ScriptContent string // The script content
ScriptType string // File extension like "js", "py", etc.
Interpreter string // What interpreter to use (e.g., "node", "python")
PackageName string // Name of the package to analyze
Args []string // Additional arguments to pass to the script
Env map[string]string // Environment variables to pass to the script
}
func FlattenDependencyTree(node *models.DependencyNode) []string {
result := make([]string, 0)
seen := make(map[string]bool)
var flatten func(*models.DependencyNode)
flatten = func(n *models.DependencyNode) {
key := fmt.Sprintf("%s@%s", n.Name, n.Version)
if seen[key] {
return
}
seen[key] = true
result = append(result, fmt.Sprintf("%s@%s", n.Name, n.Version))
for _, dep := range n.Dependencies {
flatten(dep)
}
}
flatten(node)
return result
}
// RunExtractor extracts an embedded script to a temp file and executes it
func RunPkgExtractor(opts ExtractorOptions) (string, error) {
interpreterPath, err := utils.GetExecutablePath(opts.Interpreter)
if err != nil {
return "", err
}
// Create a temporary file for the embedded script
scriptFile, err := os.CreateTemp("", fmt.Sprintf("registry-extractor-*.%s", opts.ScriptType))
if err != nil {
return "", fmt.Errorf("failed to create temporary script file: %s", err.Error())
}
defer os.Remove(scriptFile.Name())
// Write the embedded script to the temporary file
if _, err = scriptFile.WriteString(opts.ScriptContent); err != nil {
return "", fmt.Errorf("failed to write script to temporary file: %s", err.Error())
}
if err = scriptFile.Close(); err != nil {
return "", fmt.Errorf("failed to close temporary script file: %s", err.Error())
}
// Create a file with random name which will contain the output
randomFileName, err := crypto.RandomString(12, "abcdefghijklmnopqrstuvwxyz0123456789")
if err != nil {
return "", fmt.Errorf("failed to generate random string: %s", err.Error())
}
outputFile := filepath.Join(os.TempDir(), randomFileName+".txt")
// Build the command with all arguments
cmdArgs := append([]string{scriptFile.Name(), opts.PackageName, outputFile}, opts.Args...)
var env []string
for key, value := range opts.Env {
env = append(env, fmt.Sprintf("%s=%s", key, value))
}
if err = utils.ExecCmd(interpreterPath, cmdArgs, env); err != nil {
return "", err
}
return outputFile, nil
}