To help you get started, we've collected the most common ways that resolve-path is being used within popular public projects.

patternplate / patternplate / source / application / routes / patternStatic.js View on Github

if ( [ 'HEAD', 'GET' ].indexOf( this.method ) === -1 ) {
		return;
	}

	let path = this.captures[0];
	path = path[ 0 ] === '/' ? path.slice( 1 ) : path;

	try {
		path = decodeURIComponent( path )
	} catch ( err ) {
		application.log.error( 'Could not decode path' );
		application.log.debug( err );
		this.throw( 'failed to decode', 400 );
	}

	path = resolvePath( root, path );

	if ( basename( path )[ 0 ] === '.' ) {
		return;
	}

	let stats;

	try {
		stats = await stat( path );
		if ( stats.isDirectory() ) {
			return;
		}
	} catch ( err ) {
		if ( notfound.indexOf( err.code ) > -1 ) {
			return;
		}

View more ways to use resolve-path

resolve-path

Resolve a relative path against a root path with validation.

This module would protect against commons attacks like GET /../file.js which reaches outside the root folder.

Installation

This is a Node.js module available through the npm registry. Installation is done using the npm install command:

$ npm install resolve-path

API

var resolvePath = require('resolve-path')

resolvePath(relativePath)

Resolve a relative path against process.cwd() (the process's current working directory) and return an absolute path. This will throw if the resulting resolution seems malicious. The following are malicious:

• The relative path is an absolute path
• The relative path contains a NULL byte
• The relative path resolves to a path outside of process.cwd()
• The relative path traverses above process.cwd() and back down

resolvePath(rootPath, relativePath)

Resolve a relative path against the provided root path and return an absolute path. This will throw if the resulting resolution seems malicious. The following are malicious:

• The relative path is an absolute path
• The relative path contains a NULL byte
• The relative path resolves to a path outside of the root path
• The relative path traverses above the root and back down

Example

Safely resolve paths in a public directory

var http = require('http')
var parseUrl = require('parseurl')
var path = require('path')
var resolvePath = require('resolve-path')

// the public directory
var publicDir = path.join(__dirname, 'public')

// the server
var server = http.createServer(function onRequest (req, res) {
  try {
    // get the pathname from the URL (decoded)
    var pathname = decodeURIComponent(parseUrl(req).pathname)

    if (!pathname) {
      res.statusCode = 400
      res.end('path required')
      return
    }

    // remove leading slash
    var filename = pathname.substr(1)

    // resolve the full path
    var fullpath = resolvePath(publicDir, filename)

    // echo the resolved path
    res.statusCode = 200
    res.end('resolved to ' + fullpath)
  } catch (err) {
    res.statusCode = err.status || 500
    res.end(err.message)
  }
})

server.listen(3000)

License

MIT