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Node JS module for creating an SFTP server that uses S3 for file storage.

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cmrigney/node-sftp-s3

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node-sftp-s3

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UPDATE: I'm no longer maintaining this project. If you would like to take it over or you know of a solid fork, please reach out!

Node JS module for creating an SFTP server with user isolation that uses S3 for file storage.

Install

npm install node-sftp-s3

Usage

var SFTPS3Server = require('node-sftp-s3').SFTPS3Server;

var AWS = require('aws-sdk');
var path = require('path');
var fs = require('fs');

//aws.json contains credentials for S3 access
AWS.config.loadFromPath(path.join(__dirname, 'aws.json'));

var s3 = new AWS.S3({ params: { Bucket: 'testing' } });

var server = new SFTPS3Server(s3);

//You can generate a key with ssh-keygen
server.addHostKey(fs.readFileSync(path.join(__dirname, 'server_key_rsa')));

//Add users' public keys.  These can also be added after the server has already started
server.addPublicKey(fs.readFileSync(path.join(__dirname, 'client_key_rsa.pub')), 'baruser' /* , 'myapp' (optional path prefix) */);

server.listen(2222, '127.0.0.1', function(port) {
  console.log('Listening on ' + port);
  //server.stop() will stop the server
});


Events

SFTPServer emits several events. Each event passes a dictionary object with the listed parameters.

The path parameter includes the user's subfolder name.

  • client-error - { client: <Object>, error: <Error> }
  • login - { username: <string> }
  • file-uploaded - { path: <string>, username: <string> }
  • file-downloaded - { path: <string>, username: <string> }
  • file-deleted - { path: <string>, username: <string> }
  • directory-deleted - { path: <string>, username: <string> }
  • directory-created - { path: <string>, username: <string> }
  • file-renamed - { path: <string>, oldPath: <string>, username: <string> }

Notes

Password authentication is NOT currently supported. Only public/private key auth. It should be simple to add this feature. A PR is welcome. :)

Docker

The module also includes a server suitable for running in a Docker container.

  1. cp .env.sample .env
  2. Edit .env to add appropriate configuration values for all variables
  3. mkdir keys && ssh-keygen -t rsa -f keys/server_key_rsa
  4. For each user, ssh-keygen -t rsa -f keys/id_<username>
  5. docker-compose up

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Node JS module for creating an SFTP server that uses S3 for file storage.

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