Run sandboxed

Run sandboxed code and return result in ctx object. By default only powerdash functions are made available inside the sandbox via _.

Usage

Create a sandbox file such as simple.sjs

result = 42

To return an object, pass into variable result

result = {
  opts: {
    type: 'js',
    indent: 4
  }
}

Then run the file in a sandbox via runSandboxedCodeAt(filePath) and collect the result

const filePath = path.join(__dirname, 'treedef.sjs')
const ctx = runSandboxedCodeAt(filePath)
// { treeDef: { opts: { type: 'js' }}}

Options

warn

Pass a custom warn function to signal a warning and return a default value if code can not be read (or run). If a warn function is not passed, the error is handled normally and an Error might well be thrown.

defaultValue

Custom default value to return in case of error. If not set, will return empty object {}.

log

Pass a custom log function to log messages

error

Pass a custom error function to handle (and throw) errors

VM sandbox options

You can pass custom VM sandbox options to override the defaults:

{
  timeout: 1000,
  // what to make available inside
  sandbox: {
    _ // powerdash functions
  }
}

Dependencies

Uses vm2 to run a secured VM sandbox.

License

MIT