WIP: typescript refactor

fix: handle errors on pasv/port commands

.circleci/config.yml

@@ -0,0 +1,97 @@
+version: 2
+
+jobs:
+  build:
+    docker:
+      - image: &node-image circleci/node:lts
+    steps:
+      - checkout
+      - restore_cache:
+          keys:
+            - &npm-cache-key npm-cache-{{ .Branch }}-{{ .Revision }}
+            - npm-cache-{{ .Branch }}
+            - npm-cache
+      - run:
+          name: Install
+          command: npm ci
+      - persist_to_workspace:
+          root: .
+          paths:
+            - node_modules
+      - save_cache:
+          key: *npm-cache-key
+          paths:
+            - ~/.npm/_cacache
+
+  lint:
+    docker:
+      - image: *node-image
+    steps:
+      - checkout
+      - attach_workspace:
+          at: .
+      - run:
+          name: Lint
+          command: npm run verify
+
+  test:
+    docker:
+      - image: *node-image
+    steps:
+      - checkout
+      - attach_workspace:
+          at: .
+      - deploy:
+          name: Test
+          command: |
+            npm run test
+
+  release_dry_run:
+    docker:
+      - image: *node-image
+    steps:
+      - checkout
+      - attach_workspace:
+          at: .
+      - deploy:
+          name: Dry Release
+          command: |
+            npm run semantic-release -- --dry-run
+
+  release:
+    docker:
+      - image: *node-image
+    steps:
+      - checkout
+      - attach_workspace:
+          at: .
+      - deploy:
+          name: Release
+          command: |
+            npm run semantic-release
+
+workflows:
+  version: 2
+  publish:
+    jobs:
+      - build
+      - lint:
+          requires:
+            - build
+      - test:
+          requires:
+            - build
+      - release_dry_run:
+          filters:
+            branches:
+              only: master
+          requires:
+            - test
+            - lint
+      - hold_release:
+          type: approval
+          requires:
+            - release_dry_run
+      - release:
+          requires:
+            - hold_release

.env

@@ -1,2 +0,0 @@
-FTP_URL=ftp://127.0.0.1:8880
-PASV_RANGE=8881

.eslintignore

@@ -1,9 +0,0 @@
-# START_CONFIT_GENERATED_CONTENT
-# Common folders to ignore
-node_modules/*
-bower_components/*
-
-# Config folder (optional - you might want to lint this...)
-config/*
-
-# END_CONFIT_GENERATED_CONTENT

.gitattributes

@@ -0,0 +1 @@
+package-lock.json binary

.gitignore

@@ -1,5 +1,6 @@
+test_tmp/
+
 node_modules/
 
 dist/
-reports/
 npm-debug.log

.travis.yml

@@ -1,25 +0,0 @@
-language: node_js
-node_js:
-  - "6"
-  - "node"
-
-env:
-  FTP_URL: ftp://127.0.0.1:8880
-  PASV_RANGE: 8881
-
-install: npm install
-
-script:
-  - npm run verify:js
-  - npm run test:coverage
-
-after_script:
-  - npm run upload-coverage
-
-deploy:
-  skip_cleanup: true
-  provider: script
-  script: npm run semantic-release
-  on:
-    branch: master
-    node: "6"

CONTRIBUTING.md

@@ -1,208 +0,0 @@
-<!--[CN_HEADING]-->
-# Contributing
-
-Welcome! This document explains how you can contribute to making **ftp-srv** even better.
-
-
-<!--[]-->
-
-<!--[CN_GETTING_STARTED]-->
-# Getting Started
-
-## Installation
-
-```
-git clone <this repo>
-npm install -g commitizen
-npm install -g semantic-release-cli
-npm install
-```
-
-
-<!--[]-->
-
-<!--[RM_DIR_STRUCTURE]-->
-## Directory Structure
-
-Code is organised into modules which contain one-or-more components. This a great way to ensure maintainable code by encapsulation of behavior logic. A component is basically a self contained app usually in a single file or a folder with each concern as a file: style, template, specs, e2e, and component class. Here's how it looks:
-```
-ftp-srv/
- ├──config/                       * configuration files live here (e.g. eslint, verify, testUnit)
- │
- ├──src/                          * source code files should be here
- │
- ├──dist/                         * production-build code should live here
- │
- ├──reports/                      * test reports appear here
- │
- ├──test/                         * unit test specifications live here
- │
- ├──confit.yml                    * the project config file generated by 'yo confit'
- ├──CONTRIBUTING.md               * how to contribute to the project
- ├──README.md                     * this file
- └──package.json                  * NPM package description file
-```
-
-
-<!--[]-->
-
-<!--[CN_GITFLOW_PROCESS]-->
-# GitFlow Development Process
-
-This project uses the [GitHub Flow](https://guides.github.com/introduction/flow/index.html) workflow.
-
-## Create a branch
-When you're working on a project, you're going to have a bunch of different features or ideas in progress at any given time – some of which are ready to go, and others which are not. Branching exists to help you manage this workflow.
-
-When you create a branch in your project, you're creating an environment where you can try out new ideas. Changes you make on a branch don't affect the `master` branch, so you're free to experiment and commit changes, safe in the knowledge that your branch won't be merged until it's ready to be reviewed by someone you're collaborating with.
-
-###ProTip
-
-Branching is a core concept in Git, and the entire GitHub Flow is based upon it. There's only one rule: anything in the `master` branch is always deployable.
-
-Because of this, it's extremely important that your new branch is created off of `master` when working on a feature or a fix. Your branch name should be descriptive (e.g., `refactor-authentication`, `user-content-cache-key`, `make-retina-avatars`), so that others can see what is being worked on.
-
-## Add commits
-Once your branch has been created, it's time to start making changes. Whenever you add, edit, or delete a file, you're making a commit, and adding them to your branch. This process of adding commits keeps track of your progress as you work on a feature branch.
-
-Commits also create a transparent history of your work that others can follow to understand what you've done and why. Each commit has an associated commit message, which is a description explaining why a particular change was made. Furthermore, each commit is considered a separate unit of change. This lets you roll back changes if a bug is found, or if you decide to head in a different direction.
-
-###ProTip
-
-Commit messages are important, especially since Git tracks your changes and then displays them as commits once they're pushed to the server. By writing clear commit messages, you can make it easier for other people to follow along and provide feedback.
-
-## Open a pull request
-
-Pull Requests initiate discussion about your commits. Because they're tightly integrated with the underlying Git repository, anyone can see exactly what changes would be merged if they accept your request.
-
-You can open a Pull Request at any point during the development process: when you have little or no code but want to share some screenshots or general ideas, when you're stuck and need help or advice, or when you're ready for someone to review your work. By using GitHub's @mention system in your Pull Request message, you can ask for feedback from specific people or teams, whether they're down the hall or ten time zones away.
-
-###ProTip
-
-Pull Requests are useful for contributing to open source projects and for managing changes to shared repositories. If you're using a Fork & Pull Model, Pull Requests provide a way to notify project maintainers about the changes you'd like them to consider. If you're using a Shared Repository Model, Pull Requests help start code review and conversation about proposed changes before they're merged into the `master` branch.
-
-## Discuss and review your code
-Once a Pull Request has been opened, the person or team reviewing your changes may have questions or comments. Perhaps the coding style doesn't match project guidelines, the change is missing unit tests, or maybe everything looks great and props are in order. Pull Requests are designed to encourage and capture this type of conversation.
-
-You can also continue to push to your branch in light of discussion and feedback about your commits. If someone comments that you forgot to do something or if there is a bug in the code, you can fix it in your branch and push up the change. GitHub will show your new commits and any additional feedback you may receive in the unified Pull Request view.
-
-###ProTip
-
-Pull Request comments are written in Markdown, so you can embed images and emoji, use pre-formatted text blocks, and other lightweight formatting.
-
-## Merge to `master`
-
-Once your PR has passed any the integration tests and received approval to merge, it is time to merge your code into the `master` branch.
-
-Once merged, Pull Requests preserve a record of the historical changes to your code. Because they're searchable, they let anyone go back in time to understand why and how a decision was made.
-
-###ProTip
-
-By incorporating certain keywords into the text of your Pull Request, you can associate issues with code. When your Pull Request is merged, the related issues are also closed. For example, entering the phrase Closes #32 would close issue number 32 in the repository. For more information, check out our help article.
-
-
-<!--[]-->
-
-<!--[CN_BUILD_TASKS]-->
-## Build Tasks
-
-Command | Description
-:------ | :----------
-<pre>npm run build</pre> | Generate production build into [dist/](dist/) folder
-<pre>npm run dev</pre> | Run project in development mode (verify code, and re-verify when code is changed)
-<pre>npm start</pre> | Alias for `npm run dev` task
-
-
-
-<!--[]-->
-
-<!--[CN_TEST_TASKS]-->
-## Test Tasks
-
-Command | Description
-:------ | :----------
-<pre>npm test</pre> | Alias for `npm run test:unit` task
-<pre>npm run test:coverage</pre> | Run instrumented unit tests then verify coverage meets defined thresholds<ul><li>Returns non-zero exit code when coverage does not meet thresholds (as defined in istanbul.js)</li></ul>
-<pre>npm run test:unit</pre> | Run unit tests whenever JS source or tests change<ul><li>Uses Mocha</li><li>Code coverage</li><li>Runs continuously (best to run in a separate window)</li></ul>
-<pre>npm run test:unit:once</pre> | Run unit tests once<ul><li>Uses Mocha</li><li>Code coverage</li></ul>
-
-
-
-<!--[]-->
-
-<!--[CN_VERIFY_TASKS]-->
-## Verification (Linting) Tasks
-
-Command | Description
-:------ | :----------
-<pre>npm run verify</pre> | Verify code style and syntax<ul><li>Verifies source *and test code* aginst customisable rules (unlike Webpack loaders)</li></ul>
-<pre>npm run verify:watch</pre> | Runs verify task whenever JS or CSS code is changed
-
-
-
-<!--[]-->
-
-<!--[CN_COMMIT_TASKS]-->
-## Commit Tasks
-
-Command | Description
-:------ | :----------
-<pre>git status</pre> | Lists the current branch and the status of changed files
-<pre>git log</pre> | Displays the commit log (press Q to quit viewing)
-<pre>git add .</pre> | Stages all modified & untracked files, ready to be committed
-<pre>git cz</pre> | Commit changes to local repository using Commitizen.<ul><li>Asks questions about the change to generate a valid conventional commit message</li><li>Can be customised by modifying [config/release/commitMessageConfig.js](config/release/commitMessageConfig.js)</li></ul>
-<pre>git push</pre> | Push local repository changes to remote repository
-
-
-<!--[]-->
-
-<!--[CN_DOCUMENTATION_TASKS]-->
-
-
-
-<!--[]-->
-
-<!--[CN_RELEASE_TASKS]-->
-## Release Tasks
-
-Command | Description
-:------ | :----------
-<pre>npm run commitmsg</pre> | Git commit message hook that validates the commit message conforms to your commit message conventions.
-<pre>npm run pre-release</pre> | Verify code, run unit tests, check test coverage, build software. This task is designed to be run before
-the `semantic-release` task.
-<ul><li>Run `semantic-release-cli setup` once you have a remote repository. See https://github.com/semantic-release/cli for details.</li><li>Semantic-release integrates with Travis CI (or similar tools) to generate release notes
-for each release (which appears in the "Releases" section in GitHub) and
-publishes the package to NPM (when all the tests are successful) with a semantic version number.
-</li></ul>
-<pre>npm run prepush</pre> | Git pre-push hook that verifies code and checks unit test coverage meet minimum thresholds.
-<pre>npm run upload-coverage</pre> | Uploads code-coverage metrics to Coveralls.io<ul><li>Setup - https://coveralls.zendesk.com/hc/en-us/articles/201347419-Coveralls-currently-supports</li><li>Define an environment variable called COVERALLS_REPO_TOKEN in your build environment with the repo token from https://coveralls.io/github/<repo-name>/settings</li><li>In your CI configuration (e.g. `travis.yml`), call `npm run upload-coverage` if the build is successful.</li></ul>
-
-
-
-<!--[]-->
-
-
-<!--[CN_CHANGING_BUILD_TOOL_CONFIG]-->
-## Changing build-tool configuration
-
-There are 3 ways you can change the build-tool configuration for this project:
-
-1. BEST: Modify the Confit configuration file ([confit.yml](confit.yml)) by hand, then re-run `yo confit` and tell it to use the existing configuration.
-1. OK: Re-run `yo confit` and provide new answers to the questions. **Confit will attempt to overwrite your existing configuration (it will prompt for confirmation), so make sure you have committed your code to a source control (e.g. git) first**.
-  There are certain configuration settings which can **only** be specified by hand, in which case the first approach is still best.
-1. RISKY: Modify the generated build-tool config by hand. Be aware that if you re-run `yo confit` it will attempt to overwrite your changes. So commit your changes to source control first.
-
-Additionally, the **currently-generated** configuration can be extended in the following ways:
-
-- The task configuration is defined in [package.json](package.json). It is possible to change the task definitions to add your own sub-tasks.
-You can also use the `pre...` and `post...` script-name prefixes to run commands before (pre) and after (post) the generated commands.
-
-- The `entryPoint.entryPoints` string in [confit.yml](confit.yml) is designed to be edited manually. It represents the starting-point(s) of the application (like a `main()` function). A NodeJS application has one entry point. E.g. `src/index.js`
-
-
-
-
-<!--[]-->
-
-
-

LICENSE

@@ -1,9 +0,0 @@
-ftp-srv Copyright (c) 2017 Tyler Stewart
-
-MIT License
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

@@ -1,218 +0,0 @@
-[![ftp-srv](logo.png)](https://github.com/trs/ftp-srv)
-
-<!--[RM_DESCRIPTION]-->
-> Modern, extensible FTP Server
-
-<!--[]-->
-
-[![npm version](https://badge.fury.io/js/ftp-srv.svg)](https://badge.fury.io/js/ftp-srv) [![Build Status](https://travis-ci.org/trs/ftp-srv.svg?branch=master)](https://travis-ci.org/trs/ftp-srv)
-[![Coverage Status](https://coveralls.io/repos/github/trs/ftp-srv/badge.svg?branch=coveralls)](https://coveralls.io/github/trs/ftp-srv?branch=coveralls)  [![semantic-release](https://img.shields.io/badge/%20%20%F0%9F%93%A6%F0%9F%9A%80-semantic--release-e10079.svg)](https://github.com/semantic-release/semantic-release) [![Commitizen friendly](https://img.shields.io/badge/commitizen-friendly-brightgreen.svg)](http://commitizen.github.io/cz-cli/)
-
----
-
-- [Overview](#overview)
-- [Features](#features)
-- [Install](#install)
-- [Usage](#usage)
-  - [API](#api)
-  - [Events](#events)
-  - [Supported Commands](#supported-commands)
-  - [File System](#file-system)
-- [Contributing](#contributing)
-- [License](#license)
-
-## Overview
-`ftp-srv` is a modern and extensible FTP server designed to be simple yet configurable.
-
-## Features
-- Extensible [file systems](#file-system) per connection
-- Passive and active transfers
-- [Explicit](https://en.wikipedia.org/wiki/FTPS#Explicit) & [Implicit](https://en.wikipedia.org/wiki/FTPS#Implicit) TLS connections
-
-## Install
-`npm install ftp-srv --save`  
-
-## Usage
-
-```js
-// Quick start
-
-const FtpSvr = require('ftp-srv');
-const ftpServer = new FtpSvr('ftp://0.0.0.0:9876', { options ... });
-
-ftpServer.on('login', (data, resolve, reject) => { ... });
-...
-
-ftpServer.listen()
-.then(() => { ... });
-```
-
-## API
-
-### `new FtpSrv(url, [{options}])`
-#### url
-[URL string](https://nodejs.org/api/url.html#url_url_strings_and_url_objects) indicating the protocol, hostname, and port to listen on for connections.  
-Supported protocols:
-- `ftp` Plain FTP
-- `ftps` Implicit FTP over TLS  
-
-_Note:_ The hostname must be the external IP address to accept external connections. Setting the hostname to `0.0.0.0` will automatically set the external IP.  
-__Default:__ `"ftp://127.0.0.1:21"`
-
-#### options
-
-##### `pasv_range`
-A starting port (eg `8000`) or a range (eg `"8000-9000"`) to accept passive connections.  
-This range is then queried for an available port to use when required.  
-__Default:__ `22`
-
-##### `greeting`
-A human readable array of lines or string to send when a client connects.  
-__Default:__ `null`
-
-##### `tls`
-Node [TLS secure context object](https://nodejs.org/api/tls.html#tls_tls_createsecurecontext_options) used for implicit (`ftps` protocol) or explicit (`AUTH TLS`) connections.  
-__Default:__ `false`
-
-##### `anonymous`
-If true, will allow clients to authenticate using the username `anonymous`, not requiring a password from the user.  
-Can also set as a string which allows users to authenticate using the username provided.  
-The `login` event is then sent with the provided username and `@anonymous` as the password.  
-__Default:__ `false`
-
-##### `blacklist`
-Array of commands that are not allowed.  
-Response code `502` is sent to clients sending one of these commands.  
-__Example:__ `['RMD', 'RNFR', 'RNTO']` will not allow users to delete directories or rename any files.  
-__Default:__ `[]`
-
-##### `whitelist`
-Array of commands that are only allowed.  
-Response code `502` is sent to clients sending any other command.  
-__Default:__ `[]`
-
-##### `file_format`
-Sets the format to use for file stat queries such as `LIST`.  
-__Default:__ `"ls"`  
-__Allowable values:__
-  - `ls` [bin/ls format](https://cr.yp.to/ftp/list/binls.html)
-  - `ep` [Easily Parsed LIST format](https://cr.yp.to/ftp/list/eplf.html)
-  - `function () {}` A custom function returning a format or promise for one.
-    - Only one argument is passed in: a node [file stat](https://nodejs.org/api/fs.html#fs_class_fs_stats) object with additional file `name` parameter
-
-##### `log`
-A [bunyan logger](https://github.com/trentm/node-bunyan) instance. Created by default.
-
-## Events
-
-The `FtpSvr` class extends the [node net.Server](https://nodejs.org/api/net.html#net_class_net_server). Some custom events can be resolved or rejected, such as `login`.
-
-### `login`
-```js
-on('login', {connection, username, password}, resolve, reject) => { ... }
-```
-
-Occurs when a client is attempting to login. Here you can resolve the login request by username and password.
-
-`connection` [client class object](src/connection.js)  
-`username` string of username from `USER` command  
-`password` string of password from `PASS` command  
-`resolve` takes an object of arguments:
-- `fs`
-  - Set a custom file system class for this connection to use.
-  - See [File System](#file-system) for implementation details.
-- `root`
-  - If `fs` is not provided, this will set the root directory for the connection.
-  - The user cannot traverse lower than this directory.
-- `cwd`
-  - If `fs` is not provided, will set the starting directory for the connection
-  - This is relative to the `root` directory.
-- `blacklist`
-  - Commands that are forbidden for only this connection
-- `whitelist`
-  - If set, this connection will only be able to use the provided commands
-
-`reject` takes an error object
-
-### `client-error`
-```js
-on('client-error', {connection, context, error}) => { ... }
-```
-
-Occurs when an error arises in the client connection.
-
-`connection` [client class object](src/connection.js)  
-`context` string of where the error occured  
-`error` error object
-
-## Supported Commands
-
-See the [command registry](src/commands/registration) for a list of all implemented FTP commands.
-
-## File System
-The default file system can be overwritten to use your own implementation.  
-This can allow for virtual file systems, and more.  
-Each connection can set it's own file system based on the user.  
-
-Custom file systems can implement the following variables depending on the developers needs.
-
-### Methods
-#### [`currentDirectory()`](src/fs.js#L29)
-Returns a string of the current working directory  
-__Used in:__ `PWD`
-
-#### [`get(fileName)`](src/fs.js#L33)  
-Returns a file stat object of file or directory  
-__Used in:__ `LIST`, `NLST`, `STAT`, `SIZE`, `RNFR`, `MDTM`
-
-#### [`list(path)`](src/fs.js#L39)  
-Returns array of file and directory stat objects  
-__Used in:__ `LIST`, `NLST`, `STAT`
-
-#### [`chdir(path)`](src/fs.js#L56)  
-Returns new directory relative to current directory  
-__Used in:__ `CWD`, `CDUP`
-
-#### [`mkdir(path)`](src/fs.js#L96)  
-Returns a path to a newly created directory  
-__Used in:__ `MKD`
-
-#### [`write(fileName, {append = false})`](src/fs.js#L68)  
-Returns a writable stream   
-Options: `append` if true, append to existing file  
-__Used in:__ `STOR`, `APPE`
-
-#### [`read(fileName)`](src/fs.js#L75)
-Returns a readable stream  
-__Used in:__ `RETR`
-
-#### [`delete(path)`](src/fs.js#L87)
-Delete a file or directory  
-__Used in:__ `DELE`
-
-#### [`rename(from, to)`](src/fs.js#L102)
-Rename a file or directory  
-__Used in:__ `RNFR`, `RNTO`
-
-#### [`chmod(path)`](src/fs.js#L108)  
-Modify a file or directory's permissions  
-__Used in:__ `SITE CHMOD`
-
-#### [`getUniqueName()`](src/fs.js#L113)
-Returns a unique file name to write to  
-__Used in:__ `STOU`
-
-<!--[RM_CONTRIBUTING]-->
-## Contributing
-
-See [CONTRIBUTING.md](CONTRIBUTING.md).
-
-
-<!--[]-->
-
-<!--[RM_LICENSE]-->
-## License
-
-This software is licensed under the MIT Licence. See [LICENSE](LICENSE).
-
-<!--[]-->

config/release/commitMessageConfig.js

@@ -1,43 +0,0 @@
-'use strict';
-
-module.exports = {
-
-  types: [
-    {value: 'feat',     name: 'feat:     A new feature'},
-    {value: 'fix',      name: 'fix:      A bug fix'},
-    {value: 'docs',     name: 'docs:     Documentation only changes'},
-    {value: 'style',    name: 'style:    Changes that do not affect the meaning of the code\n            (white-space, formatting, missing semi-colons, etc)'},
-    {value: 'refactor', name: 'refactor: A code change that neither fixes a bug nor adds a feature'},
-    {value: 'perf',     name: 'perf:     A code change that improves performance'},
-    {value: 'test',     name: 'test:     Adding missing tests'},
-    {value: 'chore',    name: 'chore:    Changes to the build process or auxiliary tools\n            and libraries such as documentation generation'},
-    {value: 'revert',   name: 'revert:   Revert to a commit'},
-    {value: 'WIP',      name: 'WIP:      Work in progress'}
-  ],
-
-  scopes: [
-    {name: 'accounts'},
-    {name: 'admin'},
-    {name: 'exampleScope'},
-    {name: 'changeMe'}
-  ],
-
-  // it needs to match the value for field type. Eg.: 'fix'
-  /*
-   scopeOverrides: {
-   fix: [
-
-   {name: 'merge'},
-   {name: 'style'},
-   {name: 'e2eTest'},
-   {name: 'unitTest'}
-   ]
-   },
-   */
-
-  allowCustomScopes: true,
-  allowBreakingChanges: ['feat', 'fix'],
-
-  // Appends the branch name to the footer of the commit. Useful for tracking commits after branches have been merged
-  appendBranchNameToCommitMessage: true
-};

config/testUnit/istanbul.js

@@ -1,35 +0,0 @@
-// Use JS to support loading of threshold data from external file
-var coverageConfig = {
-  instrumentation: {
-    root: 'src/',
-    excludes: ['errors.js']
-  },
-  check: require('./thresholds.json'),
-  reporting: {
-    print: 'both',
-    dir: 'reports/coverage/',
-    reports: [
-      'cobertura',
-      'html',
-      'lcovonly',
-      'html',
-      'json'
-    ],
-    'report-config': {
-      cobertura: {
-        file: 'cobertura/coverage.xml'
-      },
-      json: {
-        file: 'json/coverage.json'
-      },
-      lcovonly: {
-        file: 'lcov/lcov.info'
-      },
-      text: {
-        file: null
-      }
-    }
-  }
-};
-
-module.exports = coverageConfig;

config/testUnit/mocha.opts

@@ -1,3 +0,0 @@
-test/**/*.spec.js
---reporter mocha-pretty-bunyan-nyan
---ui bdd

config/testUnit/thresholds.json

@@ -1,14 +0,0 @@
-{
-  "global": {
-    "statements": 90,
-    "branches": 80,
-    "functions": 90,
-    "lines": 90
-  },
-  "each": {
-    "statements": 70,
-    "branches": 40,
-    "functions": 60,
-    "lines": 70
-  }
-}

config/verify/.eslintrc

@@ -1,60 +0,0 @@
-# START_CONFIT_GENERATED_CONTENT
-confit:
-  extends: &confit-extends
-    - plugin:node/recommended
-
-  plugins: &confit-plugins
-    - node
-
-  env: &confit-env
-    commonjs: true    # For Webpack, CommonJS
-    node: true
-    mocha: true
-    es6: true
-
-  globals: &confit-globals {}
-  parser: &confit-parser espree
-
-  parserOptions: &confit-parserOptions
-    ecmaVersion: 6
-    sourceType: module
-    ecmaFeatures:
-      globalReturn: false
-      impliedStrict: true
-      jsx: false
-
-# END_CONFIT_GENERATED_CONTENT
-
-# Customise this section to meet your needs...
-
-extends: *confit-extends
-  # Uncomment this next line if you need to add more items to the array, and remove the "*confit-extends" from the line above
-  # <<: *confit-extends
-
-plugins: *confit-plugins
-  # Uncomment this next line if you need to add more items to the array, and remove the "*confit-plugins" from the line above
-  # <<: *confit-extends
-
-env:
-  <<: *confit-env
-
-globals:
-  <<: *confit-globals
-
-parser: *confit-parser
-
-parserOptions:
-  <<: *confit-parserOptions
-
-rules:
-  max-len:
-    - warn
-    - 200     # Line Length
-  node/no-unpublished-require:
-    - 2
-    - allowModules:
-      - chai
-      - dotenv
-      - ftp
-      - sinon
-      - sinon-as-promised

confit.yml

@@ -1,48 +0,0 @@
-generator-confit:
-  app:
-    _version: f02196cc5cb7941ca46ec46d23bd6aef0dfcaca0
-    buildProfile: Latest
-    copyrightOwner: Tyler Stewart
-    license: MIT
-    projectType: node
-    publicRepository: true
-    repositoryType: GitHub
-  paths:
-    _version: 7f33e41600b34cd6867478d8f2b3d6b2bbd42508
-    config:
-      configDir: config/
-    input:
-      srcDir: src/
-      unitTestDir: test/
-    output:
-      prodDir: dist/
-      reportDir: reports/
-  buildJS:
-    _version: df428a706d926204228c5d9ebdbd7b49908926d9
-    framework: []
-    frameworkScripts: []
-    outputFormat: ES6
-    sourceFormat: ES6
-  entryPoint:
-    _version: de20402bf85c703080ef6daf21e35325a3b9d604
-    entryPoints:
-      main:
-        - src/index.js
-  testUnit:
-    _version: 4472a6d59b434226f463992d3c1914c77a6a115d
-    testDependencies: []
-  verify:
-    _version: 30ae86c5022840a01fc08833e238a82c683fa1c7
-    jsCodingStandard: eslint
-  documentation:
-    _version: b1658da3278b16d1982212f5e8bc05348af20e0b
-    generateDocs: false
-  release:
-    _version: 47f220593935b502abf17cb34a396f692e453c49
-    checkCodeCoverage: true
-    commitMessageFormat: Conventional
-    useSemantic: true
-  sampleApp:
-    _version: 00c0a2c6fc0ed17fcccce2d548d35896121e58ba
-    createSampleApp: false
-  zzfinish: {}

example/index.ts

@@ -0,0 +1,15 @@
+import FTPServer from '../src/server';
+
+const server = new FTPServer();
+server.registerPlugin({
+    command: 'PASS',
+    handler: async ({connection, reply}) => {
+        const username = connection.getContext('username');
+        const password = connection.getContext('password');
+
+        // AUTHENTICATE
+
+        reply.set([230]);
+    }
+});
+server.listen();

logo/generate.js

@@ -1,17 +0,0 @@
-/*
-Send Button by Bruno Bosse from the Noun Project
-https://thenounproject.com/brunobosse/collection/basics/?i=1054386
-*/
-
-const fs = require('fs');
-const htmlConvert = require('html-convert');
-
-const convert = htmlConvert();
-let ws = fs.createWriteStream('logo.png');
-let rs = convert('logo/logo.html', {
-  width: 350,
-  height: 76
-});
-
-rs.pipe(ws);
-ws.on('finish', () => process.exit());

logo/icon.svg

@@ -1,81 +0,0 @@
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- <g>
-  <title>Layer 1</title>
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logo/logo.html

@@ -1,47 +0,0 @@
-<!doctype html>
-<html>
-  <head>
-    <link href="https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700" rel="stylesheet">
-    <style>
-      body {
-        padding: 0;
-        margin: 0;
-      }
-      h1 {
-        display: inline-block;
-        margin: 0;
-        margin-left: -4px;
-        padding: 0px;
-        font-size: 68px;
-        font-family: 'Source Code Pro', monospace;
-        font-weight: bold;
-        line-height: 0.8em;
-        letter-spacing: -3px;
-        color: #333;
-        -webkit-font-smoothing: antialiased;
-        text-shadow:
-          1px 0px 0px #ccc, 0px 1px 0px #eee,
-          2px 1px 0px #ccc, 1px 2px 0px #eee,
-          3px 2px 0px #ccc, 2px 3px 0px #eee,
-          4px 3px 0px #ccc;
-      }
-      h1 > span {
-        display: block;
-        padding: 0;
-        margin: 0;
-        padding-top: 6px;
-      }
-      img {
-        display: inline-block;
-        vertical-align: top;
-      }
-    </style>
-  </head>
-
-  <body>
-    <h1>
-      <span>ftp-srv</span>
-    </h1>
-    <img src="icon.svg" width="76px" height="76px" />
-  </body>
-</html>

old/.eslintignore

@@ -0,0 +1,2 @@
+node_modules/*
+bower_components/*

old/CONTRIBUTING.md

@@ -0,0 +1,25 @@
+<p align="center">
+  <a href="https://github.com/trs/ftp-srv">
+    <img alt="ftp-srv" src="logo.png" width="400px"  />
+  </a>
+</p>
+
+<h1 align="center">
+  Contributing Guide
+</h1>
+
+## Welcome
+
+- Thank you for your eagerness to contribute, pull requests are encouraged!
+
+## Guidelines
+
+- Any new fixes are features should include new or updated [tests](/test).
+- Commits follow the [AngularJS Git Commit Message Conventions](https://docs.google.com/document/d/1QrDFcIiPjSLDn3EL15IJygNPiHORgU1_OOAqWjiDU5Y/edit), please review and commit accordingly
+- Submit your pull requests to the `master` branch, these will normally be merged into a separate branch for any finally changes before being merged into `master`.
+- Submit any bugs or requests to the issues page in Github.
+
+## Setup
+
+- Clone the repository `git clone`
+- Install dependencies `npm install`

old/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2019 Tyler Stewart
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

old/README.md

@@ -0,0 +1,358 @@
+<p align="center">
+  <a href="https://github.com/trs/ftp-srv">
+    <img alt="ftp-srv" src="logo.png" width="600px"  />
+  </a>
+</p>
+
+
+<p align="center">
+  Modern, extensible FTP Server
+</p>
+
+<p align="center">
+  <a href="https://www.npmjs.com/package/ftp-srv">
+    <img alt="npm" src="https://img.shields.io/npm/dm/ftp-srv.svg?style=for-the-badge" />
+  </a>
+
+  <a href="https://circleci.com/gh/trs/workflows/ftp-srv/tree/master">
+    <img alt="circleci" src="https://img.shields.io/circleci/project/github/trs/ftp-srv/master.svg?style=for-the-badge" />
+  </a>
+</p>
+
+---
+
+- [Overview](#overview)
+- [Features](#features)
+- [Install](#install)
+- [Usage](#usage)
+  - [API](#api)
+  - [CLI](#cli)
+  - [Events](#events)
+  - [Supported Commands](#supported-commands)
+  - [File System](#file-system)
+- [Contributing](#contributing)
+- [License](#license)
+
+## Overview
+`ftp-srv` is a modern and extensible FTP server designed to be simple yet configurable.
+
+## Features
+- Extensible [file systems](#file-system) per connection
+- Passive and active transfers
+- [Explicit](https://en.wikipedia.org/wiki/FTPS#Explicit) & [Implicit](https://en.wikipedia.org/wiki/FTPS#Implicit) TLS connections
+- Promise based API
+
+## Install
+`npm install ftp-srv --save`
+
+## Usage
+
+```js
+// Quick start
+
+const FtpSrv = require('ftp-srv');
+const ftpServer = new FtpSrv({ options ... });
+
+ftpServer.on('login', (data, resolve, reject) => { ... });
+...
+
+ftpServer.listen()
+.then(() => { ... });
+```
+
+## API
+
+### `new FtpSrv({options})`
+#### url
+[URL string](https://nodejs.org/api/url.html#url_url_strings_and_url_objects) indicating the protocol, hostname, and port to listen on for connections.
+Supported protocols:
+- `ftp` Plain FTP
+- `ftps` Implicit FTP over TLS
+
+_Note:_ The hostname must be the external IP address to accept external connections. `0.0.0.0` will listen on any available hosts for server and passive connections.  
+__Default:__ `"ftp://127.0.0.1:21"`
+
+#### `pasv_url`
+The hostname to provide a client when attempting a passive connection (`PASV`). This defaults to the provided `url` hostname.
+
+_Note:_ If set to `0.0.0.0`, this will automatically resolve to the external IP of the box.  
+__Default:__ `"127.0.0.1"`
+
+#### `pasv_min`
+Tne starting port to accept passive connections.  
+__Default:__ `1024`
+
+#### `pasv_max`
+The ending port to accept passive connections.  
+The range is then queried for an available port to use when required.  
+__Default:__ `65535`
+
+#### `greeting`
+A human readable array of lines or string to send when a client connects.  
+__Default:__ `null`
+
+#### `tls`
+Node [TLS secure context object](https://nodejs.org/api/tls.html#tls_tls_createsecurecontext_options) used for implicit (`ftps` protocol) or explicit (`AUTH TLS`) connections.  
+__Default:__ `false`
+
+#### `anonymous`
+If true, will allow clients to authenticate using the username `anonymous`, not requiring a password from the user.  
+Can also set as a string which allows users to authenticate using the username provided.  
+The `login` event is then sent with the provided username and `@anonymous` as the password.  
+__Default:__ `false`
+
+#### `blacklist`
+Array of commands that are not allowed.  
+Response code `502` is sent to clients sending one of these commands.  
+__Example:__ `['RMD', 'RNFR', 'RNTO']` will not allow users to delete directories or rename any files.  
+__Default:__ `[]`
+
+#### `whitelist`
+Array of commands that are only allowed.  
+Response code `502` is sent to clients sending any other command.  
+__Default:__ `[]`
+
+#### `file_format`
+Sets the format to use for file stat queries such as `LIST`.  
+__Default:__ `"ls"`  
+__Allowable values:__
+  - `ls` [bin/ls format](https://cr.yp.to/ftp/list/binls.html)
+  - `ep` [Easily Parsed LIST format](https://cr.yp.to/ftp/list/eplf.html)
+  - `function () {}` A custom function returning a format or promise for one.
+    - Only one argument is passed in: a node [file stat](https://nodejs.org/api/fs.html#fs_class_fs_stats) object with additional file `name` parameter
+
+#### `log`
+A [bunyan logger](https://github.com/trentm/node-bunyan) instance. Created by default.
+
+#### `timeout`
+Sets the timeout (in ms) after that an idle connection is closed by the server  
+__Default:__ `0`
+
+## CLI
+
+`ftp-srv` also comes with a builtin CLI.
+
+```bash
+$ ftp-srv [url] [options]
+```
+
+```bash
+$ ftp-srv ftp://0.0.0.0:9876 --root ~/Documents
+```
+
+#### `url`
+
+Set the listening URL.
+
+Defaults to `ftp://127.0.0.1:21`
+
+#### `--root` / `-r`
+
+Set the default root directory for users.
+
+Defaults to the current directory.
+
+#### `--credentials` / `-c`
+
+Set the path to a json credentials file.
+
+Format:
+
+```js
+[
+  {
+    "username": "...",
+    "password": "...",
+    "root": "..." // Root directory
+  },
+  ...
+]
+```
+
+#### `--username`
+
+Set the username for the only user. Do not provide an argument to allow anonymous login.
+
+#### `--password`
+
+Set the password for the given `username`.
+
+## Events
+
+The `FtpSrv` class extends the [node net.Server](https://nodejs.org/api/net.html#net_class_net_server). Some custom events can be resolved or rejected, such as `login`.
+
+### `login`
+```js
+ftpServer.on('login', ({connection, username, password}, resolve, reject) => { ... });
+```
+
+Occurs when a client is attempting to login. Here you can resolve the login request by username and password.
+
+`connection` [client class object](src/connection.js)  
+`username` string of username from `USER` command  
+`password` string of password from `PASS` command  
+`resolve` takes an object of arguments:  
+- `fs`
+  - Set a custom file system class for this connection to use.
+  - See [File System](#file-system) for implementation details.
+- `root`
+  - If `fs` is not provided, this will set the root directory for the connection.
+  - The user cannot traverse lower than this directory.
+- `cwd`
+  - If `fs` is not provided, will set the starting directory for the connection
+  - This is relative to the `root` directory.
+- `blacklist`
+  - Commands that are forbidden for only this connection
+- `whitelist`
+  - If set, this connection will only be able to use the provided commands
+
+`reject` takes an error object
+
+### `client-error`
+```js
+ftpServer.on('client-error', ({connection, context, error}) => { ... });
+```
+
+Occurs when an error arises in the client connection.
+
+`connection` [client class object](src/connection.js)  
+`context` string of where the error occurred  
+`error` error object
+
+### `RETR`
+```js
+connection.on('RETR', (error, filePath) => { ... });
+```
+
+Occurs when a file is downloaded.
+
+`error` if successful, will be `null`  
+`filePath` location to which file was downloaded
+
+### `STOR`
+```js
+connection.on('STOR', (error, fileName) => { ... });
+```
+
+Occurs when a file is uploaded.
+
+`error` if successful, will be `null`  
+`fileName` name of the file that was uploaded
+
+### `RNTO`
+```js
+connection.on('RNTO', (error, fileName) => { ... });
+```
+
+Occurs when a file is renamed.
+
+`error` if successful, will be `null`  
+`fileName` name of the file that was renamed
+
+## Supported Commands
+
+See the [command registry](src/commands/registration) for a list of all implemented FTP commands.
+
+## File System
+The default [file system](src/fs.js) can be overwritten to use your own implementation.  
+This can allow for virtual file systems, and more.  
+Each connection can set it's own file system based on the user.  
+
+The default file system is exported and can be extended as needed:  
+```js
+const {FtpSrv, FileSystem} = require('ftp-srv');
+
+class MyFileSystem extends FileSystem {
+  constructor() {
+    super(...arguments);
+  }
+
+  get(fileName) {
+    ...
+  }
+}
+```
+
+Custom file systems can implement the following variables depending on the developers needs:
+
+### Methods
+#### [`currentDirectory()`](src/fs.js#L40)
+Returns a string of the current working directory  
+__Used in:__ `PWD`
+
+#### [`get(fileName)`](src/fs.js#L44)
+Returns a file stat object of file or directory  
+__Used in:__ `LIST`, `NLST`, `STAT`, `SIZE`, `RNFR`, `MDTM`
+
+#### [`list(path)`](src/fs.js#L50)
+Returns array of file and directory stat objects  
+__Used in:__ `LIST`, `NLST`, `STAT`
+
+#### [`chdir(path)`](src/fs.js#L67)
+Returns new directory relative to current directory  
+__Used in:__ `CWD`, `CDUP`
+
+#### [`mkdir(path)`](src/fs.js#L114)
+Returns a path to a newly created directory  
+__Used in:__ `MKD`
+
+#### [`write(fileName, {append, start})`](src/fs.js#L79)
+Returns a writable stream  
+Options:  
+ `append` if true, append to existing file  
+ `start` if set, specifies the byte offset to write to  
+__Used in:__ `STOR`, `APPE`
+
+#### [`read(fileName, {start})`](src/fs.js#L90)
+Returns a readable stream  
+Options:  
+ `start` if set, specifies the byte offset to read from  
+__Used in:__ `RETR`
+
+#### [`delete(path)`](src/fs.js#L105)
+Delete a file or directory  
+__Used in:__ `DELE`
+
+#### [`rename(from, to)`](src/fs.js#L120)
+Renames a file or directory  
+__Used in:__ `RNFR`, `RNTO`
+
+#### [`chmod(path)`](src/fs.js#L126)
+Modifies a file or directory's permissions  
+__Used in:__ `SITE CHMOD`
+
+#### [`getUniqueName()`](src/fs.js#L131)
+Returns a unique file name to write to  
+__Used in:__ `STOU`
+
+## Contributing
+
+See [CONTRIBUTING.md](CONTRIBUTING.md).
+
+## Contributors
+
+- [OzairP](https://github.com/OzairP)
+- [TimLuq](https://github.com/TimLuq)
+- [crabl](https://github.com/crabl)
+- [hirviid](https://github.com/hirviid)
+- [DiegoRBaquero](https://github.com/DiegoRBaquero)
+- [edin-m](https://github.com/edin-m)
+- [voxsoftware](https://github.com/voxsoftware)
+- [jorinvo](https://github.com/jorinvo)
+- [Johnnyrook777](https://github.com/Johnnyrook777)
+- [qchar](https://github.com/qchar)
+- [mikejestes](https://github.com/mikejestes)
+- [pkeuter](https://github.com/pkeuter)
+- [qiansc](https://github.com/qiansc)
+- [broofa](https://github.com/broofa)
+- [lafin](https://github.com/lafin)
+- [alancnet](https://github.com/alancnet)
+- [zgwit](https://github.com/zgwit)
+
+## License
+
+This software is licensed under the MIT Licence. See [LICENSE](LICENSE).
+
+## References
+
+- [https://cr.yp.to/ftp.html](https://cr.yp.to/ftp.html)

old/bin/index.js

@@ -0,0 +1,141 @@
+#!/usr/bin/env node
+
+const yargs = require('yargs');
+const path = require('path');
+
+const FtpSrv = require('../src');
+const errors = require('../src/errors');
+
+const args = setupYargs();
+const state = setupState(args);
+startFtpServer(state);
+
+function setupYargs() {
+  return yargs
+    .option('credentials', {
+      alias: 'c',
+      describe: 'Load user & pass from json file',
+      normalize: true
+    })
+    .option('username', {
+      describe: 'Blank for anonymous',
+      type: 'string',
+      default: ''
+    })
+    .option('password', {
+      describe: 'Password for given username',
+      type: 'string'
+    })
+    .option('root', {
+      alias: 'r',
+      describe: 'Default root directory for users',
+      type: 'string',
+      normalize: true
+    })
+    .option('read-only', {
+      describe: 'Disable write actions such as upload, delete, etc',
+      boolean: true,
+      default: false
+    })
+    .option('pasv_url', {
+      describe: 'URL to provide for passive connections',
+      type: 'string'
+    })
+    .option('pasv_min', {
+      describe: 'Starting point to use when creating passive connections',
+      type: 'number',
+      default: 1024
+    })
+    .option('pasv_max', {
+      describe: 'Ending port to use when creating passive connections',
+      type: 'number',
+      default: 65535
+    })
+    .parse();
+}
+
+function setupState(_args) {
+  const _state = {};
+
+  function setupOptions() {
+    if (_args._ && _args._.length > 0) {
+      _state.url = _args._[0];
+    }
+    _state.pasv_url = _args.pasv_url;
+    _state.pasv_min = _args.pasv_min;
+    _state.pasv_max = _args.pasv_max;
+    _state.anonymous = _args.username === '';
+  }
+
+  function setupRoot() {
+    const dirPath = _args.root;
+    if (dirPath) {
+      _state.root = dirPath;
+    } else {
+      _state.root = process.cwd();
+    }
+  }
+
+  function setupCredentials() {
+    _state.credentials = {};
+
+    const setCredentials = (username, password, root = null) => {
+      _state.credentials[username] = {
+        password,
+        root
+      };
+    };
+
+    if (_args.credentials) {
+      const credentialsFile = path.resolve(_args.credentials);
+      const credentials = require(credentialsFile);
+
+      for (const cred of credentials) {
+        setCredentials(cred.username, cred.password, cred.root);
+      }
+    } else if (_args.username) {
+      setCredentials(_args.username, _args.password);
+    }
+  }
+
+  function setupCommandBlacklist() {
+    if (_args.readOnly) {
+      _state.blacklist = ['ALLO', 'APPE', 'DELE', 'MKD', 'RMD', 'RNRF', 'RNTO', 'STOR', 'STRU'];
+    }
+  }
+
+  setupOptions();
+  setupRoot();
+  setupCredentials();
+  setupCommandBlacklist();
+
+  return _state;
+}
+
+function startFtpServer(_state) {
+  // Remove null/undefined options so they get set to defaults, below
+  for (const key in _state) {
+    if (_state[key] === undefined) delete _state[key];
+  }
+
+  function checkLogin(data, resolve, reject) {
+    const user = _state.credentials[data.username];
+    if (_state.anonymous || user && user.password === data.password) {
+      return resolve({root: user && user.root || _state.root});
+    }
+
+    return reject(new errors.GeneralError('Invalid username or password', 401));
+  }
+
+  const ftpServer = new FtpSrv({
+    url: _state.url,
+    pasv_url: _state.pasv_url,
+    pasv_min: _state.pasv_min,
+    pasv_max: _state.pasv_max,
+    anonymous: _state.anonymous,
+    blacklist: _state.blacklist
+  });
+
+  ftpServer.on('login', checkLogin);
+  ftpServer.listen();
+}

old/changelog/v2_to_v3_migation.md

@@ -0,0 +1,44 @@
+# Migration Guide - v2 to v3
+
+The `FtpServer` constructor has been changed to only take one object option. Combining the two just made sense.
+
+### From:
+
+```js
+const server = new FtpServer('ftp://0.0.0.0:21');
+```
+
+### To:
+
+```js
+const server = new FtpServer({
+  url: 'ftp://0.0.0.0:21'
+});
+```
+
+----
+
+The `pasv_range` option has been changed to separate integer variables: `pasv_min`, `pasv_max`.
+
+### From:
+
+```js
+const server = new FtpServer(..., {
+  pasv_range: '1000-2000'
+});
+```
+
+### To:
+
+```js
+const server = new FtpServer({
+  pasv_min: 1000,
+  pasv_max: 2000
+})
+```
+
+----
+
+The default passive port range has been changed to `1024` - `65535`
+
+----

old/ftp-srv.d.ts

@@ -0,0 +1,127 @@
+import * as tls from 'tls'
+import { Stats } from 'fs'
+import { EventEmitter } from 'events';
+
+export class FileSystem {
+
+    readonly connection: FtpConnection;
+    readonly root: string;
+    readonly cwd: string;
+
+    constructor(connection: FtpConnection, {root, cwd}?: {
+        root: any;
+        cwd: any;
+    });
+
+    currentDirectory(): string;
+
+    get(fileName: string): Promise<any>;
+
+    list(path?: string): Promise<any>;
+
+    chdir(path?: string): Promise<string>;
+
+    write(fileName: string, {append, start}?: {
+        append?: boolean;
+        start?: any;
+    }): any;
+
+    read(fileName: string, {start}?: {
+        start?: any;
+    }): Promise<any>;
+
+    delete(path: string): Promise<any>;
+
+    mkdir(path: string): Promise<any>;
+
+    rename(from: string, to: string): Promise<any>;
+
+    chmod(path: string, mode: string): Promise<any>;
+
+    getUniqueName(): string;
+}
+
+export class FtpConnection extends EventEmitter {
+    server: FtpServer;
+    id: string;
+    log: any;
+    transferType: string;
+    encoding: string;
+    bufferSize: boolean;
+    readonly ip: string;
+    restByteCount: number | undefined;
+    secure: boolean
+
+    close (code: number, message: number): Promise<any>
+    login (username: string, password: string): Promise<any>
+    reply (options: number | Record<string, any>, ...letters: any[]): Promise<any>
+
+}
+
+export interface FtpServerOptions {
+    url?: string;
+    pasv_min?: number;
+    pasv_max?: number;
+    pasv_url?: string;
+    greeting?: string | string[];
+    tls?: tls.SecureContextOptions | false;
+    anonymous?: boolean;
+    blacklist?: string[];
+    whitelist?: string[];
+    file_format?: (stat: Stats) => string | Promise<string> | "ls" | "ep";
+    log?: any;
+    timeout?: number;
+}
+
+export class FtpServer extends EventEmitter {
+    constructor(options?: FtpServerOptions);
+
+    readonly isTLS: boolean;
+
+    listen(): any;
+
+    emitPromise(action: any, ...data: any[]): Promise<any>;
+
+    // emit is exported from super class
+
+    setupTLS(_tls: boolean): boolean | {
+        cert: string;
+        key: string;
+        ca: string;
+    };
+
+    setupGreeting(greet: string): string[];
+
+    setupFeaturesMessage(): string;
+
+    disconnectClient(id: string): Promise<any>;
+
+    close(): any;
+
+    on(event: "login", listener: (
+        data: {
+            connection: FtpConnection;
+            username: string;
+            password: string;
+        },
+        resolve: (config: {
+            fs?: FileSystem;
+            root?: string;
+            cwd?: string;
+            blacklist?: string[];
+            whitelist?: string[];
+        }) => void,
+        reject: (err?: Error) => void
+    ) => void): this;
+
+    on(event: "client-error", listener: (
+        data: {
+            connection: FtpConnection;
+            context: string;
+            error: Error;
+        }
+    ) => void): this;
+}
+
+export {FtpServer as FtpSrv};
+export default FtpServer;

old/ftp-srv.js

@@ -0,0 +1,8 @@
+const FtpSrv = require('./src');
+const FileSystem = require('./src/fs');
+const errors = require('./src/errors');
+
+module.exports = FtpSrv;
+module.exports.FtpSrv = FtpSrv;
+module.exports.FileSystem = FileSystem;
+module.exports.ftpErrors = errors;

old/meta/contributors/contributors.js

@@ -0,0 +1,27 @@
+const {get} = require('https');
+
+get('https://api.github.com/repos/trs/ftp-srv/contributors', {
+  headers: {
+    'User-Agent': 'Chrome'
+  }
+}, (res) => {
+  let response = '';
+  res.on('data', (data) => {
+    response += data;
+  });
+  res.on('end', () => {
+    const contributors = JSON.parse(response)
+      .filter((contributor) => contributor.type === 'User');
+
+    for (const contributor of contributors) {
+      const url = contributor.html_url;
+      const username = contributor.login;
+
+      const markdown = `- [${username}](${url})\n`;
+
+      process.stdout.write(markdown);
+    }
+  });
+}).on('error', (err) => {
+  process.stderr.write(err);
+});

old/meta/logo/generate.js

@@ -0,0 +1,23 @@
+const puppeteer = require('puppeteer');
+const logoPath = `file://${process.cwd()}/logo/logo.html`;
+
+puppeteer.launch()
+.then(browser => {
+  return browser.newPage()
+  .then(page => {
+    return page.goto(logoPath)
+    .then(() => page);
+  })
+  .then(page => {
+    return page.setViewport({
+      width: 600,
+      height: 250,
+      deviceScaleFactor: 2
+    })
+    .then(() => page.screenshot({
+      path: 'logo.png',
+      omitBackground: true
+    }));
+  })
+  .then(() => browser.close());
+});

old/meta/logo/logo.html

@@ -0,0 +1,68 @@
+<!doctype html>
+<html>
+  <head>
+    <link href="https://fonts.googleapis.com/css?family=Overpass+Mono:700" rel="stylesheet">
+    <style>
+      body {
+        padding: 0;
+        margin: 0;
+        display: flex;
+        height: 100vh;
+        flex-direction: row;
+        justify-content: center;
+      }
+      div {
+        display: flex;
+        flex-direction: column;
+        justify-content: center;
+        width: 100vw;
+      }
+      h1 {
+        display: flex;
+        flex-direction: column;
+        align-self: center;
+        text-align: center;
+        margin: 0;
+        padding: 0px;
+        width: 75vw;
+        font-size: 68px;
+        font-family: 'Overpass Mono', monospace;
+        font-weight: bold;
+        line-height: 0.8em;
+        letter-spacing: -3px;
+        color: #fff;
+        -webkit-font-smoothing: antialiased;
+        -webkit-text-stroke: 1px #0063B1;
+        text-shadow:
+          3px 3px 0 #0063B1,
+          -1px -1px 0 #0063B1,  
+          1px -1px 0 #0063B1,
+          -1px 1px 0 #0063B1,
+          1px 1px 0 #0063B1;
+      }
+      h1 > span {
+        display: block;
+        padding: 0;
+        margin: 0;
+        padding-top: 6px;
+      }
+      h1 > hr {
+        padding: 0;
+        margin: 0;
+        margin-top: 22px;
+        border: 1px solid #0063B1;
+        border-radius: 50%;
+      }
+    </style>
+  </head>
+
+  <body>
+    <div>
+      <h1>
+        <span>ftp</span>
+        <hr />
+        <span>srv</span>
+      </h1>
+    </div>
+  </body>
+</html>

old/package.json

@@ -0,0 +1,91 @@
+{
+  "name": "ftp-srv",
+  "version": "0.0.0",
+  "description": "Modern, extensible FTP Server",
+  "keywords": [
+    "ftp",
+    "ftp-server",
+    "ftp-srv",
+    "ftp-svr",
+    "ftpd",
+    "ftpserver",
+    "server"
+  ],
+  "license": "MIT",
+  "files": [
+    "src",
+    "bin",
+    "ftp-srv.d.ts"
+  ],
+  "main": "ftp-srv.js",
+  "bin": "./bin/index.js",
+  "types": "./ftp-srv.d.ts",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/trs/ftp-srv"
+  },
+  "scripts": {
+    "pre-release": "npm run verify",
+    "semantic-release": "semantic-release",
+    "test": "mocha **/*.spec.js --ui bdd --bail",
+    "verify": "eslint src/**/*.js test/**/*.js bin/**/*.js"
+  },
+  "release": {
+    "verifyConditions": "condition-circle"
+  },
+  "husky": {
+    "hooks": {
+      "pre-commit": "lint-staged",
+      "commit-msg": "commitlint -E HUSKY_GIT_PARAMS"
+    }
+  },
+  "lint-staged": {
+    "*.js": [
+      "eslint --fix",
+      "git add"
+    ]
+  },
+  "commitlint": {
+    "extends": [
+      "@commitlint/config-conventional"
+    ]
+  },
+  "eslintConfig": {
+    "extends": "eslint:recommended",
+    "env": {
+      "node": true,
+      "mocha": true,
+      "es6": true
+    },
+    "parserOptions": {
+      "ecmaVersion": 6,
+      "sourceType": "module"
+    }
+  },
+  "dependencies": {
+    "bluebird": "^3.5.1",
+    "bunyan": "^1.8.12",
+    "ip": "^1.1.5",
+    "lodash": "^4.17.10",
+    "moment": "^2.22.1",
+    "uuid": "^3.2.1",
+    "yargs": "^11.0.0"
+  },
+  "devDependencies": {
+    "@commitlint/cli": "^7.5.2",
+    "@commitlint/config-conventional": "^7.5.0",
+    "@icetee/ftp": "^1.0.2",
+    "chai": "^4.2.0",
+    "condition-circle": "^2.0.2",
+    "eslint": "^5.14.1",
+    "husky": "^1.3.1",
+    "lint-staged": "^8.1.4",
+    "mocha": "^5.2.0",
+    "rimraf": "^2.6.1",
+    "semantic-release": "^15.10.6",
+    "sinon": "^2.3.5"
+  },
+  "engines": {
+    "node": ">=6.x"
+  }
+}

old/src/commands/index.js

@@ -1,21 +1,34 @@
 const _ = require('lodash');
-const when = require('when');
+const Promise = require('bluebird');
 
 const REGISTRY = require('./registry');
 
+const CMD_FLAG_REGEX = new RegExp(/^-(\w{1})$/);
+
 class FtpCommands {
   constructor(connection) {
     this.connection = connection;
     this.previousCommand = {};
-    this.blacklist = _.get(this.connection, 'server.options.blacklist', []).map(cmd => _.upperCase(cmd));
-    this.whitelist = _.get(this.connection, 'server.options.whitelist', []).map(cmd => _.upperCase(cmd));
+    this.blacklist = _.get(this.connection, 'server.options.blacklist', []).map((cmd) => _.upperCase(cmd));
+    this.whitelist = _.get(this.connection, 'server.options.whitelist', []).map((cmd) => _.upperCase(cmd));
   }
 
   parse(message) {
-    const [directive, ...args] = message.replace(/"/g, '').split(' ');
+    const strippedMessage = message.replace(/"/g, '');
+    let [directive, ...args] = strippedMessage.split(' ');
+    directive = _.chain(directive).trim().toUpper().value();
+
+    const parseCommandFlags = !['RETR', 'SIZE', 'STOR'].includes(directive);
+    const params = args.reduce(({arg, flags}, param) => {
+      if (parseCommandFlags && CMD_FLAG_REGEX.test(param)) flags.push(param);
+      else arg.push(param);
+      return {arg, flags};
+    }, {arg: [], flags: []});
+
     const command = {
-      directive: _.chain(directive).trim().toUpper().value(),
-      arg: _.compact(args).join(' ') || null,
+      directive,
+      arg: params.arg.length ? params.arg.join(' ') : null,
+      flags: params.flags,
       raw: message
     };
     return command;
@@ -54,7 +67,7 @@ class FtpCommands {
     }
 
     const handler = commandRegister.handler.bind(this.connection);
-    return when.try(handler, { log, command, previous_command: this.previousCommand })
+    return Promise.resolve(handler({log, command, previous_command: this.previousCommand}))
     .finally(() => {
       this.previousCommand = _.clone(command);
     });

old/src/commands/registration/abor.js

@@ -2,12 +2,12 @@ module.exports = {
   directive: 'ABOR',
   handler: function () {
     return this.connector.waitForConnection()
-    .then(socket => {
+    .then((socket) => {
       return this.reply(426, {socket})
-      .then(() => this.connector.end());
+      .then(() => this.reply(226));
     })
-    .catch(() => {})
-    .then(() => this.reply(226));
+    .catch(() => this.reply(225))
+    .finally(() => this.connector.end());
   },
   syntax: '{{cmd}}',
   description: 'Abort an active file transfer'

old/src/commands/registration/auth.js

@@ -20,16 +20,17 @@ module.exports = {
 };
 
 function handleTLS() {
-  if (!this.server._tls) return this.reply(504);
+  if (!this.server.options.tls) return this.reply(502);
+  if (this.secure) return this.reply(202);
 
   return this.reply(234)
   .then(() => {
-    const secureContext = tls.createSecureContext(this.server._tls);
+    const secureContext = tls.createSecureContext(this.server.options.tls);
     const secureSocket = new tls.TLSSocket(this.commandSocket, {
       isServer: true,
       secureContext
     });
-    ['data', 'timeout', 'end', 'close', 'drain', 'error'].forEach(event => {
+    ['data', 'timeout', 'end', 'close', 'drain', 'error'].forEach((event) => {
       function forwardEvent() {
         this.emit.apply(this, arguments);
       }

old/src/commands/registration/cwd.js

@@ -1,4 +1,4 @@
-const when = require('when');
+const Promise = require('bluebird');
 const escapePath = require('../../helpers/escape-path');
 
 module.exports = {
@@ -7,12 +7,12 @@ module.exports = {
     if (!this.fs) return this.reply(550, 'File system not instantiated');
     if (!this.fs.chdir) return this.reply(402, 'Not supported by file system');
 
-    return when.try(this.fs.chdir.bind(this.fs), command.arg)
-    .then(cwd => {
+    return Promise.try(() => this.fs.chdir(command.arg))
+    .then((cwd) => {
       const path = cwd ? `"${escapePath(cwd)}"` : undefined;
       return this.reply(250, path);
     })
-    .catch(err => {
+    .catch((err) => {
       log.error(err);
       return this.reply(550, err.message);
     });

old/src/commands/registration/dele.js

@@ -1,4 +1,4 @@
-const when = require('when');
+const Promise = require('bluebird');
 
 module.exports = {
   directive: 'DELE',
@@ -6,11 +6,11 @@ module.exports = {
     if (!this.fs) return this.reply(550, 'File system not instantiated');
     if (!this.fs.delete) return this.reply(402, 'Not supported by file system');
 
-    return when.try(this.fs.delete.bind(this.fs), command.arg)
+    return Promise.try(() => this.fs.delete(command.arg))
     .then(() => {
       return this.reply(250);
     })
-    .catch(err => {
+    .catch((err) => {
       log.error(err);
       return this.reply(550, err.message);
     });

old/src/commands/registration/eprt.js

@@ -9,11 +9,11 @@ const FAMILY = {
 module.exports = {
   directive: 'EPRT',
   handler: function ({command} = {}) {
-    this.connector = new ActiveConnector(this);
-    const [protocol, ip, port] = _.compact(command.arg.split('|'));
+    const [, protocol, ip, port] = _.chain(command).get('arg', '').split('|').value();
     const family = FAMILY[protocol];
-    if (!family) return this.reply(502, 'Unknown network protocol');
+    if (!family) return this.reply(504, 'Unknown network protocol');
 
+    this.connector = new ActiveConnector(this);
     return this.connector.setupConnection(ip, port, family)
     .then(() => this.reply(200));
   },

old/src/commands/registration/epsv.js

@@ -5,7 +5,7 @@ module.exports = {
   handler: function () {
     this.connector = new PassiveConnector(this);
     return this.connector.setupServer()
-    .then(server => {
+    .then((server) => {
       const {port} = server.address();
 
       return this.reply(229, `EPSV OK (|||${port}|)`);

old/src/commands/registration/feat.js

@@ -9,8 +9,12 @@ module.exports = {
         const feat = _.get(registry[cmd], 'flags.feat', null);
         if (feat) return _.concat(feats, feat);
         return feats;
-      }, [])
-      .map(feat => ` ${feat}`);
+      }, ['UTF8'])
+      .sort()
+      .map((feat) => ({
+        message: ` ${feat}`,
+        raw: true
+      }));
     return features.length
       ? this.reply(211, 'Extensions supported', ...features, 'End')
       : this.reply(211, 'No features');

old/src/commands/registration/help.js

@@ -12,7 +12,7 @@ module.exports = {
       const reply = _.concat([syntax.replace('{{cmd}}', directive), description]);
       return this.reply(214, ...reply);
     } else {
-      const supportedCommands = _.chunk(Object.keys(registry), 5).map(chunk => chunk.join('\t'));
+      const supportedCommands = _.chunk(Object.keys(registry), 5).map((chunk) => chunk.join('\t'));
       return this.reply(211, 'Supported commands:', ...supportedCommands, 'Use "HELP [command]" for syntax help.');
     }
   },

old/src/commands/registration/list.js

@@ -1,5 +1,5 @@
 const _ = require('lodash');
-const when = require('when');
+const Promise = require('bluebird');
 const getFileStat = require('../../helpers/file-stat');
 
 // http://cr.yp.to/ftp/list.html
@@ -13,42 +13,36 @@ module.exports = {
 
     const simple = command.directive === 'NLST';
 
-    let dataSocket;
     const path = command.arg || '.';
     return this.connector.waitForConnection()
-    .then(socket => {
-      this.commandSocket.pause();
-      dataSocket = socket;
-    })
-    .then(() => when.try(this.fs.get.bind(this.fs), path))
-    .then(stat => stat.isDirectory() ? when.try(this.fs.list.bind(this.fs), path) : [stat])
-    .then(files => {
-      const getFileMessage = file => {
+    .tap(() => this.commandSocket.pause())
+    .then(() => Promise.try(() => this.fs.get(path)))
+    .then((stat) => stat.isDirectory() ? Promise.try(() => this.fs.list(path)) : [stat])
+    .then((files) => {
+      const getFileMessage = (file) => {
         if (simple) return file.name;
         return getFileStat(file, _.get(this, 'server.options.file_format', 'ls'));
       };
 
-      const fileList = files.map(file => {
+      return Promise.try(() => files.map((file) => {
         const message = getFileMessage(file);
         return {
           raw: true,
           message,
-          socket: dataSocket
+          socket: this.connector.socket
         };
-      });
-      return this.reply(150)
-      .then(() => {
-        if (fileList.length) return this.reply({}, ...fileList);
-      });
+      }));
     })
-    .then(() => {
-      return this.reply(226, 'Transfer OK');
+    .tap(() => this.reply(150))
+    .then((fileList) => {
+      if (fileList.length) return this.reply({}, ...fileList);
     })
-    .catch(when.TimeoutError, err => {
+    .tap(() => this.reply(226))
+    .catch(Promise.TimeoutError, (err) => {
       log.error(err);
       return this.reply(425, 'No connection established');
     })
-    .catch(err => {
+    .catch((err) => {
       log.error(err);
       return this.reply(451, err.message || 'No directory');
     })

old/src/commands/registration/mdtm.js

@@ -1,4 +1,4 @@
-const when = require('when');
+const Promise = require('bluebird');
 const moment = require('moment');
 
 module.exports = {
@@ -7,12 +7,12 @@ module.exports = {
     if (!this.fs) return this.reply(550, 'File system not instantiated');
     if (!this.fs.get) return this.reply(402, 'Not supported by file system');
 
-    return when.try(this.fs.get.bind(this.fs), command.arg)
-    .then(fileStat => {
+    return Promise.try(() => this.fs.get(command.arg))
+    .then((fileStat) => {
       const modificationTime = moment.utc(fileStat.mtime).format('YYYYMMDDHHmmss.SSS');
       return this.reply(213, modificationTime);
     })
-    .catch(err => {
+    .catch((err) => {
       log.error(err);
       return this.reply(550, err.message);
     });

old/src/commands/registration/mkd.js

@@ -1,4 +1,4 @@
-const when = require('when');
+const Promise = require('bluebird');
 const escapePath = require('../../helpers/escape-path');
 
 module.exports = {
@@ -7,12 +7,12 @@ module.exports = {
     if (!this.fs) return this.reply(550, 'File system not instantiated');
     if (!this.fs.mkdir) return this.reply(402, 'Not supported by file system');
 
-    return when.try(this.fs.mkdir.bind(this.fs), command.arg)
-    .then(dir => {
+    return Promise.try(() => this.fs.mkdir(command.arg))
+    .then((dir) => {
       const path = dir ? `"${escapePath(dir)}"` : undefined;
       return this.reply(257, path);
     })
-    .catch(err => {
+    .catch((err) => {
       log.error(err);
       return this.reply(550, err.message);
     });

old/src/commands/registration/opts.js

@@ -0,0 +1,39 @@
+const _ = require('lodash');
+
+const OPTIONS = {
+  UTF8: utf8,
+  'UTF-8': utf8
+};
+
+module.exports = {
+  directive: 'OPTS',
+  handler: function ({command} = {}) {
+    if (!_.has(command, 'arg')) return this.reply(501);
+
+    const [_option, ...args] = command.arg.split(' ');
+    const option = _.toUpper(_option);
+
+    if (!OPTIONS.hasOwnProperty(option)) return this.reply(500);
+    return OPTIONS[option].call(this, args);
+  },
+  syntax: '{{cmd}}',
+  description: 'Select options for a feature'
+};
+
+function utf8([setting] = []) {
+  const getEncoding = () => {
+    switch (_.toUpper(setting)) {
+      case 'ON': return 'utf8';
+      case 'OFF': return 'ascii';
+      default: return null;
+    }
+  };
+
+  const encoding = getEncoding();
+  if (!encoding) return this.reply(501, 'Unknown setting for option');
+
+  this.encoding = encoding;
+  if (this.transferType !== 'binary') this.transferType = this.encoding;
+
+  return this.reply(200, `UTF8 encoding ${_.toLower(setting)}`);
+}

old/src/commands/registration/pass.js

@@ -12,7 +12,7 @@ module.exports = {
     .then(() => {
       return this.reply(230);
     })
-    .catch(err => {
+    .catch((err) => {
       log.error(err);
       return this.reply(530, err.message || 'Authentication failed');
     });

old/src/commands/registration/pasv.js

@@ -2,17 +2,25 @@ const PassiveConnector = require('../../connector/passive');
 
 module.exports = {
   directive: 'PASV',
-  handler: function () {
+  handler: function ({log} = {}) {
+    if (!this.server.options.pasv_url) {
+      return this.reply(502);
+    }
+
     this.connector = new PassiveConnector(this);
     return this.connector.setupServer()
-    .then(server => {
-      const address = this.server.url.hostname;
+    .then((server) => {
+      const address = this.server.options.pasv_url;
       const {port} = server.address();
       const host = address.replace(/\./g, ',');
       const portByte1 = port / 256 | 0;
       const portByte2 = port % 256;
 
       return this.reply(227, `PASV OK (${host},${portByte1},${portByte2})`);
+    })
+    .catch((err) => {
+      log.error(err);
+      return this.reply(425);
     });
   },
   syntax: '{{cmd}}',

old/src/commands/registration/pbsz.js

@@ -8,6 +8,7 @@ module.exports = {
   syntax: '{{cmd}}',
   description: 'Protection Buffer Size',
   flags: {
-    no_auth: true
+    no_auth: true,
+    feat: 'PBSZ'
   }
 };

old/src/commands/registration/port.js

@@ -3,17 +3,22 @@ const ActiveConnector = require('../../connector/active');
 
 module.exports = {
   directive: 'PORT',
-  handler: function ({command} = {}) {
+  handler: function ({log, command} = {}) {
     this.connector = new ActiveConnector(this);
+
     const rawConnection = _.get(command, 'arg', '').split(',');
     if (rawConnection.length !== 6) return this.reply(425);
 
     const ip = rawConnection.slice(0, 4).join('.');
-    const portBytes = rawConnection.slice(4).map(p => parseInt(p));
+    const portBytes = rawConnection.slice(4).map((p) => parseInt(p));
     const port = portBytes[0] * 256 + portBytes[1];
 
     return this.connector.setupConnection(ip, port)
-    .then(() => this.reply(200));
+    .then(() => this.reply(200))
+    .catch((err) => {
+      log.error(err);
+      return this.reply(425);
+    });
   },
   syntax: '{{cmd}} <x>,<x>,<x>,<x>,<y>,<y>',
   description: 'Specifies an address and port to which the server should connect'

old/src/commands/registration/prot.js

@@ -17,6 +17,7 @@ module.exports = {
   syntax: '{{cmd}}',
   description: 'Data Channel Protection Level',
   flags: {
-    no_auth: true
+    no_auth: true,
+    feat: 'PROT'
   }
 };

old/src/commands/registration/pwd.js

@@ -1,4 +1,4 @@
-const when = require('when');
+const Promise = require('bluebird');
 const escapePath = require('../../helpers/escape-path');
 
 module.exports = {
@@ -7,12 +7,12 @@ module.exports = {
     if (!this.fs) return this.reply(550, 'File system not instantiated');
     if (!this.fs.currentDirectory) return this.reply(402, 'Not supported by file system');
 
-    return when.try(this.fs.currentDirectory.bind(this.fs))
-    .then(cwd => {
+    return Promise.try(() => this.fs.currentDirectory())
+    .then((cwd) => {
       const path = cwd ? `"${escapePath(cwd)}"` : undefined;
       return this.reply(257, path);
     })
-    .catch(err => {
+    .catch((err) => {
       log.error(err);
       return this.reply(550, err.message);
     });

old/src/commands/registration/quit.js

@@ -1,7 +1,7 @@
 module.exports = {
   directive: 'QUIT',
   handler: function () {
-    return this.close(221);
+    return this.close(221, 'Client called QUIT');
   },
   syntax: '{{cmd}}',
   description: 'Disconnect',

old/src/commands/registration/rest.js

@@ -0,0 +1,16 @@
+const _ = require('lodash');
+
+module.exports = {
+  directive: 'REST',
+  handler: function ({command} = {}) {
+    const arg = _.get(command, 'arg');
+    const byteCount = parseInt(arg, 10);
+
+    if (isNaN(byteCount) || byteCount < 0) return this.reply(501, 'Byte count must be 0 or greater');
+
+    this.restByteCount = byteCount;
+    return this.reply(350, `Restarting next transfer at ${byteCount}`);
+  },
+  syntax: '{{cmd}} <byte-count>',
+  description: 'Restart transfer from the specified point. Resets after any STORE or RETRIEVE'
+};

old/src/commands/registration/retr.js

@@ -0,0 +1,64 @@
+const Promise = require('bluebird');
+
+module.exports = {
+  directive: 'RETR',
+  handler: function ({log, command} = {}) {
+    if (!this.fs) return this.reply(550, 'File system not instantiated');
+    if (!this.fs.read) return this.reply(402, 'Not supported by file system');
+
+    const filePath = command.arg;
+
+    return this.connector.waitForConnection()
+    .tap(() => this.commandSocket.pause())
+    .then(() => Promise.try(() => this.fs.read(filePath, {start: this.restByteCount})))
+    .then((fsResponse) => {
+      let {stream, clientPath} = fsResponse;
+      if (!stream && !clientPath) {
+        stream = fsResponse;
+        clientPath = filePath;
+      }
+      const serverPath = stream.path || filePath;
+
+      const destroyConnection = (connection, reject) => (err) => {
+        if (connection) connection.destroy(err);
+        reject(err);
+      };
+
+      const eventsPromise = new Promise((resolve, reject) => {
+        stream.on('data', (data) => {
+          if (stream) stream.pause();
+          if (this.connector.socket) {
+            this.connector.socket.write(data, this.transferType, () => stream && stream.resume());
+          }
+        });
+        stream.once('end', () => resolve());
+        stream.once('error', destroyConnection(this.connector.socket, reject));
+
+        this.connector.socket.once('error', destroyConnection(stream, reject));
+      });
+
+      this.restByteCount = 0;
+
+      return this.reply(150).then(() => stream.resume() && this.connector.socket.resume())
+      .then(() => eventsPromise)
+      .tap(() => this.emit('RETR', null, serverPath))
+      .then(() => this.reply(226, clientPath))
+      .finally(() => stream.destroy && stream.destroy());
+    })
+    .catch(Promise.TimeoutError, (err) => {
+      log.error(err);
+      return this.reply(425, 'No connection established');
+    })
+    .catch((err) => {
+      log.error(err);
+      this.emit('RETR', err);
+      return this.reply(551, err.message);
+    })
+    .finally(() => {
+      this.connector.end();
+      this.commandSocket.resume();
+    });
+  },
+  syntax: '{{cmd}} <path>',
+  description: 'Retrieve a copy of the file'
+};

old/src/commands/registration/rmd.js

@@ -1,4 +1,4 @@
-const dele = require('./dele').handler;
+const {handler: dele} = require('./dele');
 
 module.exports = {
   directive: ['RMD', 'XRMD'],

old/src/commands/registration/rnfr.js

@@ -1,4 +1,4 @@
-const when = require('when');
+const Promise = require('bluebird');
 
 module.exports = {
   directive: 'RNFR',
@@ -7,12 +7,12 @@ module.exports = {
     if (!this.fs.get) return this.reply(402, 'Not supported by file system');
 
     const fileName = command.arg;
-    return when.try(this.fs.get.bind(this.fs), fileName)
+    return Promise.try(() => this.fs.get(fileName))
     .then(() => {
       this.renameFrom = fileName;
       return this.reply(350);
     })
-    .catch(err => {
+    .catch((err) => {
       log.error(err);
       return this.reply(550, err.message);
     });

old/src/commands/registration/rnto.js

@@ -1,4 +1,4 @@
-const when = require('when');
+const Promise = require('bluebird');
 
 module.exports = {
   directive: 'RNTO',
@@ -11,12 +11,14 @@ module.exports = {
     const from = this.renameFrom;
     const to = command.arg;
 
-    return when.try(this.fs.rename.bind(this.fs), from, to)
+    return Promise.try(() => this.fs.rename(from, to))
     .then(() => {
       return this.reply(250);
     })
-    .catch(err => {
+    .tap(() => this.emit('RNTO', null, to))
+    .catch((err) => {
       log.error(err);
+      this.emit('RNTO', err);
       return this.reply(550, err.message);
     })
     .finally(() => {

old/src/commands/registration/site/chmod.js

@@ -1,4 +1,4 @@
-const when = require('when');
+const Promise = require('bluebird');
 
 module.exports = function ({log, command} = {}) {
   if (!this.fs) return this.reply(550, 'File system not instantiated');
@@ -6,11 +6,11 @@ module.exports = function ({log, command} = {}) {
 
   const [mode, ...fileNameParts] = command.arg.split(' ');
   const fileName = fileNameParts.join(' ');
-  return when.try(this.fs.chmod.bind(this.fs), fileName, parseInt(mode, 8))
+  return Promise.try(() => this.fs.chmod(fileName, parseInt(mode, 8)))
   .then(() => {
     return this.reply(200);
   })
-  .catch(err => {
+  .catch((err) => {
     log.error(err);
     return this.reply(500);
   });

old/src/commands/registration/site/index.js

@@ -1,16 +1,19 @@
-const when = require('when');
+const Promise = require('bluebird');
+const _ = require('lodash');
+
+const registry = require('./registry');
 
 module.exports = {
   directive: 'SITE',
   handler: function ({log, command} = {}) {
-    const registry = require('./registry');
-    const subCommand = this.commands.parse(command.arg);
+    const rawSubCommand = _.get(command, 'arg', '');
+    const subCommand = this.commands.parse(rawSubCommand);
     const subLog = log.child({subverb: subCommand.directive});
 
     if (!registry.hasOwnProperty(subCommand.directive)) return this.reply(502);
 
     const handler = registry[subCommand.directive].handler.bind(this);
-    return when.try(handler, { log: subLog, command: subCommand });
+    return Promise.resolve(handler({log: subLog, command: subCommand}));
   },
   syntax: '{{cmd}} <subVerb> [...<subParams>]',
   description: 'Sends site specific commands to remote server'

old/src/commands/registration/size.js

@@ -1,4 +1,4 @@
-const when = require('when');
+const Promise = require('bluebird');
 
 module.exports = {
   directive: 'SIZE',
@@ -6,11 +6,11 @@ module.exports = {
     if (!this.fs) return this.reply(550, 'File system not instantiated');
     if (!this.fs.get) return this.reply(402, 'Not supported by file system');
 
-    return when.try(this.fs.get.bind(this.fs), command.arg)
-    .then(fileStat => {
+    return Promise.try(() => this.fs.get(command.arg))
+    .then((fileStat) => {
       return this.reply(213, {message: fileStat.size});
     })
-    .catch(err => {
+    .catch((err) => {
       log.error(err);
       return this.reply(550, err.message);
     });

old/src/commands/registration/stat.js

@@ -1,5 +1,5 @@
 const _ = require('lodash');
-const when = require('when');
+const Promise = require('bluebird');
 const getFileStat = require('../../helpers/file-stat');
 
 module.exports = {
@@ -11,27 +11,28 @@ module.exports = {
       if (!this.fs) return this.reply(550, 'File system not instantiated');
       if (!this.fs.get) return this.reply(402, 'Not supported by file system');
 
-      return when.try(this.fs.get.bind(this.fs), path)
-      .then(stat => {
+      return Promise.try(() => this.fs.get(path))
+      .then((stat) => {
         if (stat.isDirectory()) {
           if (!this.fs.list) return this.reply(402, 'Not supported by file system');
 
-          return when.try(this.fs.list.bind(this.fs), path)
-          .then(files => {
-            const fileList = files.map(file => {
-              const message = getFileStat(file, _.get(this, 'server.options.file_format', 'ls'));
-              return {
-                raw: true,
-                message
-              };
-            });
-            return this.reply(213, 'Status begin', ...fileList, 'Status end');
-          });
-        } else {
-          return this.reply(212, getFileStat(stat, _.get(this, 'server.options.file_format', 'ls')));
+          return Promise.try(() => this.fs.list(path))
+          .then((stats) => [213, stats]);
         }
+        return [212, [stat]];
       })
-      .catch(err => {
+      .then(([code, fileStats]) => {
+        return Promise.map(fileStats, (file) => {
+          const message = getFileStat(file, _.get(this, 'server.options.file_format', 'ls'));
+          return {
+            raw: true,
+            message
+          };
+        })
+        .then((messages) => [code, messages]);
+      })
+      .then(([code, messages]) => this.reply(code, 'Status begin', ...messages, 'Status end'))
+      .catch((err) => {
         log.error(err);
         return this.reply(450, err.message);
       });

old/src/commands/registration/stor.js

@@ -0,0 +1,75 @@
+const Promise = require('bluebird');
+
+module.exports = {
+  directive: 'STOR',
+  handler: function ({log, command} = {}) {
+    if (!this.fs) return this.reply(550, 'File system not instantiated');
+    if (!this.fs.write) return this.reply(402, 'Not supported by file system');
+
+    const append = command.directive === 'APPE';
+    const fileName = command.arg;
+
+    return this.connector.waitForConnection()
+    .tap(() => this.commandSocket.pause())
+    .then(() => Promise.try(() => this.fs.write(fileName, {append, start: this.restByteCount})))
+    .then((fsResponse) => {
+      let {stream, clientPath} = fsResponse;
+      if (!stream && !clientPath) {
+        stream = fsResponse;
+        clientPath = fileName;
+      }
+      const serverPath = stream.path || fileName;
+
+      const destroyConnection = (connection, reject) => (err) => {
+        if (connection) {
+          if (connection.writable) connection.end();
+          connection.destroy(err);
+        }
+        reject(err);
+      };
+
+      const streamPromise = new Promise((resolve, reject) => {
+        stream.once('error', destroyConnection(this.connector.socket, reject));
+        stream.once('finish', () => resolve());
+      });
+
+      const socketPromise = new Promise((resolve, reject) => {
+        this.connector.socket.on('data', (data) => {
+          if (this.connector.socket) this.connector.socket.pause();
+          if (stream && stream.writable) {
+            stream.write(data, this.transferType, () => this.connector.socket && this.connector.socket.resume());
+          }
+        });
+        this.connector.socket.once('end', () => {
+          if (stream.listenerCount('close')) stream.emit('close');
+          else stream.end();
+          resolve();
+        });
+        this.connector.socket.once('error', destroyConnection(stream, reject));
+      });
+
+      this.restByteCount = 0;
+
+      return this.reply(150).then(() => this.connector.socket.resume())
+      .then(() => Promise.all([streamPromise, socketPromise]))
+      .tap(() => this.emit('STOR', null, serverPath))
+      .then(() => this.reply(226, clientPath))
+      .finally(() => stream.destroy && stream.destroy());
+    })
+    .catch(Promise.TimeoutError, (err) => {
+      log.error(err);
+      return this.reply(425, 'No connection established');
+    })
+    .catch((err) => {
+      log.error(err);
+      this.emit('STOR', err);
+      return this.reply(550, err.message);
+    })
+    .finally(() => {
+      this.connector.end();
+      this.commandSocket.resume();
+    });
+  },
+  syntax: '{{cmd}} <path>',
+  description: 'Store data as a file at the server site'
+};

old/src/commands/registration/stou.js

@@ -1,6 +1,5 @@
-const when = require('when');
-
-const stor = require('./stor').handler;
+const Promise = require('bluebird');
+const {handler: stor} = require('./stor');
 
 module.exports = {
   directive: 'STOU',
@@ -9,12 +8,10 @@ module.exports = {
     if (!this.fs.get || !this.fs.getUniqueName) return this.reply(402, 'Not supported by file system');
 
     const fileName = args.command.arg;
-    return when.try(() => {
-      return when.try(this.fs.get.bind(this.fs), fileName)
-      .then(() => when.try(this.fs.getUniqueName.bind(this.fs)))
-      .catch(() => when.resolve(fileName));
-    })
-    .then(name => {
+    return Promise.try(() => this.fs.get(fileName))
+    .then(() => Promise.try(() => this.fs.getUniqueName()))
+    .catch(() => fileName)
+    .then((name) => {
       args.command.arg = name;
       return stor.call(this, args);
     });

old/src/commands/registration/type.js

@@ -0,0 +1,18 @@
+module.exports = {
+  directive: 'TYPE',
+  handler: function ({command} = {}) {
+    if (/^A[0-9]?$/i.test(command.arg)) {
+      this.transferType = 'ascii';
+    } else if (/^L[0-9]?$/i.test(command.arg) || /^I$/i.test(command.arg)) {
+      this.transferType = 'binary';
+    } else {
+      return this.reply(501);
+    }
+    return this.reply(200, `Switch to "${this.transferType}" transfer mode.`);
+  },
+  syntax: '{{cmd}} <mode>',
+  description: 'Set the transfer mode, binary (I) or ascii (A)',
+  flags: {
+    feat: 'TYPE A,I,L'
+  }
+};

old/src/commands/registration/user.js

@@ -13,7 +13,7 @@ module.exports = {
       .then(() => {
         return this.reply(230);
       })
-      .catch(err => {
+      .catch((err) => {
         log.error(err);
         return this.reply(530, err.message || 'Authentication failed');
       });

old/src/commands/registry.js

@@ -21,6 +21,7 @@ const commands = [
   require('./registration/port'),
   require('./registration/pwd'),
   require('./registration/quit'),
+  require('./registration/rest'),
   require('./registration/retr'),
   require('./registration/rmd'),
   require('./registration/rnfr'),
@@ -35,12 +36,14 @@ const commands = [
   require('./registration/type'),
   require('./registration/user'),
   require('./registration/pbsz'),
-  require('./registration/prot')
+  require('./registration/prot'),
+  require('./registration/eprt'),
+  require('./registration/epsv')
 ];
 
 const registry = commands.reduce((result, cmd) => {
   const aliases = Array.isArray(cmd.directive) ? cmd.directive : [cmd.directive];
-  aliases.forEach(alias => result[alias] = cmd);
+  aliases.forEach((alias) => result[alias] = cmd);
   return result;
 }, {});
 

old/src/connection.js

@@ -1,7 +1,7 @@
 const _ = require('lodash');
 const uuid = require('uuid');
-const when = require('when');
-const sequence = require('when/sequence');
+const Promise = require('bluebird');
+const EventEmitter = require('events');
 
 const BaseConnector = require('./connector/base');
 const FileSystem = require('./fs');
@@ -9,56 +9,77 @@ const Commands = require('./commands');
 const errors = require('./errors');
 const DEFAULT_MESSAGE = require('./messages');
 
-class FtpConnection {
+class FtpConnection extends EventEmitter {
   constructor(server, options) {
+    super();
     this.server = server;
     this.id = uuid.v4();
     this.log = options.log.child({id: this.id, ip: this.ip});
     this.commands = new Commands(this);
+    this.transferType = 'binary';
     this.encoding = 'utf8';
     this.bufferSize = false;
+    this._restByteCount = 0;
+    this._secure = false;
 
     this.connector = new BaseConnector(this);
 
     this.commandSocket = options.socket;
-    this.commandSocket.on('error', err => {
+    this.commandSocket.on('error', (err) => {
       this.log.error(err, 'Client error');
       this.server.emit('client-error', {connection: this, context: 'commandSocket', error: err});
     });
     this.commandSocket.on('data', this._handleData.bind(this));
-    this.commandSocket.on('timeout', () => {});
+    this.commandSocket.on('timeout', () => {
+      this.log.trace('Client timeout');
+      this.close().catch((e) => this.log.trace(e, 'Client close error'));
+    });
     this.commandSocket.on('close', () => {
       if (this.connector) this.connector.end();
       if (this.commandSocket && !this.commandSocket.destroyed) this.commandSocket.destroy();
+      this.removeAllListeners();
     });
   }
 
   _handleData(data) {
-    const messages = _.compact(data.toString('utf8').split('\r\n'));
+    const messages = _.compact(data.toString(this.encoding).split('\r\n'));
     this.log.trace(messages);
-    return sequence(messages.map(message => this.commands.handle.bind(this.commands, message)));
+    return Promise.mapSeries(messages, (message) => this.commands.handle(message));
   }
 
   get ip() {
     try {
-      return this.dataSocket ? this.dataSocket.remoteAddress : this.commandSocket.remoteAddress;
+      return this.commandSocket ? this.commandSocket.remoteAddress : undefined;
     } catch (ex) {
       return null;
     }
   }
 
+  get restByteCount() {
+    return this._restByteCount > 0 ? this._restByteCount : undefined;
+  }
+  set restByteCount(rbc) {
+    this._restByteCount = rbc;
+  }
+
+  get secure() {
+    return this.server.isTLS || this._secure;
+  }
+  set secure(sec) {
+    this._secure = sec;
+  }
+
   close(code = 421, message = 'Closing connection') {
-    return when
-      .resolve(code)
-      .then(_code => _code && this.reply(_code, message))
+    return Promise.resolve(code)
+      .then((_code) => _code && this.reply(_code, message))
       .then(() => this.commandSocket && this.commandSocket.end());
   }
 
   login(username, password) {
-    return when.try(() => {
+    return Promise.try(() => {
       const loginListeners = this.server.listeners('login');
       if (!loginListeners || !loginListeners.length) {
-        if (!this.server.options.anoymous) throw new errors.GeneralError('No "login" listener setup', 500);
+        if (!this.server.options.anonymous) throw new errors.GeneralError('No "login" listener setup', 500);
       } else {
         return this.server.emitPromise('login', {connection: this, username, password});
       }
@@ -76,17 +97,21 @@ class FtpConnection {
       if (typeof options === 'number') options = {code: options}; // allow passing in code as first param
       if (!Array.isArray(letters)) letters = [letters];
       if (!letters.length) letters = [{}];
-      return when.map(letters, promise => {
-        return when(promise)
-        .then(letter => {
+      return Promise.map(letters, (promise, index) => {
+        return Promise.resolve(promise)
+        .then((letter) => {
           if (!letter) letter = {};
           else if (typeof letter === 'string') letter = {message: letter}; // allow passing in message as first param
 
           if (!letter.socket) letter.socket = options.socket ? options.socket : this.commandSocket;
           if (!letter.message) letter.message = DEFAULT_MESSAGE[options.code] || 'No information';
           if (!letter.encoding) letter.encoding = this.encoding;
-          return when(letter.message) // allow passing in a promise as a message
-          .then(message => {
+          return Promise.resolve(letter.message) // allow passing in a promise as a message
+          .then((message) => {
+            const seperator = !options.hasOwnProperty('eol') ?
+              letters.length - 1 === index ? ' ' : '-' :
+              options.eol ? ' ' : '-';
+            message = !letter.raw ? _.compact([letter.code || options.code, message]).join(seperator) : message;
             letter.message = message;
             return letter;
           });
@@ -94,16 +119,11 @@ class FtpConnection {
       });
     };
 
-    const processLetter = (letter, index) => {
-      return when.promise((resolve, reject) => {
-        const seperator = !options.hasOwnProperty('eol') ?
-          letters.length - 1 === index ? ' ' : '-' :
-          options.eol ? ' ' : '-';
-        const packet = !letter.raw ? _.compact([letter.code || options.code, letter.message]).join(seperator) : letter.message;
-
+    const processLetter = (letter) => {
+      return new Promise((resolve, reject) => {
         if (letter.socket && letter.socket.writable) {
-          this.log.trace({port: letter.socket.address().port, packet}, 'Reply');
-          letter.socket.write(packet + '\r\n', letter.encoding, err => {
+          this.log.trace({port: letter.socket.address().port, encoding: letter.encoding, message: letter.message}, 'Reply');
+          letter.socket.write(letter.message + '\r\n', letter.encoding, (err) => {
             if (err) {
               this.log.error(err);
               return reject(err);
@@ -115,8 +135,10 @@ class FtpConnection {
     };
 
     return satisfyParameters()
-    .then(satisfiedLetters => sequence(satisfiedLetters.map((letter, index) => processLetter.bind(this, letter, index))))
-    .catch(err => {
+    .then((satisfiedLetters) => Promise.mapSeries(satisfiedLetters, (letter, index) => {
+      return processLetter(letter, index);
+    }))
+    .catch((err) => {
       this.log.error(err);
     });
   }

old/src/connector/active.js

@@ -1,6 +1,6 @@
 const {Socket} = require('net');
 const tls = require('tls');
-const when = require('when');
+const Promise = require('bluebird');
 const Connector = require('./base');
 
 class Active extends Connector {
@@ -10,29 +10,31 @@ class Active extends Connector {
   }
 
   waitForConnection({timeout = 5000, delay = 250} = {}) {
-    return when.iterate(
-      () => {},
-      () => this.dataSocket && this.dataSocket.connected,
-      () => when().delay(delay)
-    ).timeout(timeout)
-    .then(() => this.dataSocket);
+    const checkSocket = () => {
+      if (this.dataSocket && this.dataSocket.connected) {
+        return Promise.resolve(this.dataSocket);
+      }
+      return Promise.resolve().delay(delay)
+      .then(() => checkSocket());
+    };
+
+    return checkSocket().timeout(timeout);
   }
 
   setupConnection(host, port, family = 4) {
-    const closeExistingServer = () => this.dataSocket ?
-      when(this.dataSocket.destroy()) :
-      when.resolve();
+    const closeExistingServer = () => Promise.resolve(
+      this.dataSocket ? this.dataSocket.destroy() : undefined);
 
     return closeExistingServer()
     .then(() => {
       this.dataSocket = new Socket();
-      this.dataSocket.setEncoding(this.encoding);
-      this.dataSocket.on('error', err => this.server.emit('client-error', {connection: this.connection, context: 'dataSocket', error: err}));
-      this.dataSocket.connect({ host, port, family }, () => {
+      this.dataSocket.setEncoding(this.connection.transferType);
+      this.dataSocket.on('error', (err) => this.server && this.server.emit('client-error', {connection: this.connection, context: 'dataSocket', error: err}));
+      this.dataSocket.connect({host, port, family}, () => {
         this.dataSocket.pause();
 
         if (this.connection.secure) {
-          const secureContext = tls.createSecureContext(this.server._tls);
+          const secureContext = tls.createSecureContext(this.server.options.tls);
           const secureSocket = new tls.TLSSocket(this.dataSocket, {
             isServer: true,
             secureContext

old/src/connector/base.js

@@ -0,0 +1,53 @@
+const Promise = require('bluebird');
+const errors = require('../errors');
+
+class Connector {
+  constructor(connection) {
+    this.connection = connection;
+
+    this.dataSocket = null;
+    this.dataServer = null;
+    this.type = false;
+  }
+
+  get log() {
+    return this.connection.log;
+  }
+
+  get socket() {
+    return this.dataSocket;
+  }
+
+  get server() {
+    return this.connection.server;
+  }
+
+  waitForConnection() {
+    return Promise.reject(new errors.ConnectorError('No connector setup, send PASV or PORT'));
+  }
+
+  closeSocket() {
+    if (this.dataSocket) {
+      const socket = this.dataSocket;
+      this.dataSocket.end(() => socket.destroy());
+      this.dataSocket = null;
+    }
+  }
+
+  closeServer() {
+    if (this.dataServer) {
+      this.dataServer.close();
+      this.dataServer = null;
+    }
+  }
+
+
+  end() {
+    this.closeSocket();
+    this.closeServer();
+
+    this.type = false;
+    this.connection.connector = new Connector(this);
+  }
+}
+module.exports = Connector;

old/src/connector/passive.js

@@ -0,0 +1,86 @@
+const net = require('net');
+const tls = require('tls');
+const ip = require('ip');
+const Promise = require('bluebird');
+
+const Connector = require('./base');
+const errors = require('../errors');
+
+class Passive extends Connector {
+  constructor(connection) {
+    super(connection);
+    this.type = 'passive';
+  }
+
+  waitForConnection({timeout = 5000, delay = 50} = {}) {
+    if (!this.dataServer) return Promise.reject(new errors.ConnectorError('Passive server not setup'));
+
+    const checkSocket = () => {
+      if (this.dataServer && this.dataServer.listening && this.dataSocket && this.dataSocket.connected) {
+        return Promise.resolve(this.dataSocket);
+      }
+      return Promise.resolve().delay(delay)
+      .then(() => checkSocket());
+    };
+
+    return checkSocket().timeout(timeout);
+  }
+
+  setupServer() {
+    this.closeServer();
+    return this.server.getNextPasvPort()
+    .then((port) => {
+      const connectionHandler = (socket) => {
+        if (!ip.isEqual(this.connection.commandSocket.remoteAddress, socket.remoteAddress)) {
+          this.log.error({
+            pasv_connection: socket.remoteAddress,
+            cmd_connection: this.connection.commandSocket.remoteAddress
+          }, 'Connecting addresses do not match');
+
+          socket.destroy();
+          return this.connection.reply(550, 'Remote addresses do not match')
+          .finally(() => this.connection.close());
+        }
+        this.log.trace({port, remoteAddress: socket.remoteAddress}, 'Passive connection fulfilled.');
+
+        this.dataSocket = socket;
+        this.dataSocket.setEncoding(this.connection.transferType);
+        this.dataSocket.on('error', (err) => this.server && this.server.emit('client-error', {connection: this.connection, context: 'dataSocket', error: err}));
+
+        if (!this.connection.secure) {
+          this.dataSocket.connected = true;
+        }
+      };
+
+      this.dataSocket = null;
+
+      const serverOptions = Object.assign({}, this.connection.secure ? this.server.options.tls : {}, {pauseOnConnect: true});
+      this.dataServer = (this.connection.secure ? tls : net).createServer(serverOptions, connectionHandler);
+      this.dataServer.maxConnections = 1;
+
+      this.dataServer.on('error', (err) => this.server && this.server.emit('client-error', {connection: this.connection, context: 'dataServer', error: err}));
+      this.dataServer.once('close', () => {
+        this.log.trace('Passive server closed');
+        this.end();
+      });
+
+      if (this.connection.secure) {
+        this.dataServer.on('secureConnection', (socket) => {
+          socket.connected = true;
+        });
+      }
+
+      return new Promise((resolve, reject) => {
+        this.dataServer.listen(port, this.server.url.hostname, (err) => {
+          if (err) reject(err);
+          else {
+            this.log.debug({port}, 'Passive connection listening');
+            resolve(this.dataServer);
+          }
+        });
+      });
+    });
+  }
+
+}
+module.exports = Passive;

old/src/fs.js

@@ -0,0 +1,135 @@
+const _ = require('lodash');
+const nodePath = require('path');
+const uuid = require('uuid');
+const Promise = require('bluebird');
+const fs = Promise.promisifyAll(require('fs'));
+const errors = require('./errors');
+
+class FileSystem {
+  constructor(connection, {root, cwd} = {}) {
+    this.connection = connection;
+    this.cwd = cwd ? nodePath.join(nodePath.sep, cwd) : nodePath.sep;
+    this._root = nodePath.resolve(root || process.cwd());
+  }
+
+  get root() {
+    return this._root;
+  }
+
+  _resolvePath(path = '.') {
+    const clientPath = (() => {
+      path = nodePath.normalize(path);
+      if (nodePath.isAbsolute(path)) {
+        return nodePath.join(path);
+      } else {
+        return nodePath.join(this.cwd, path);
+      }
+    })();
+
+    const fsPath = (() => {
+      const resolvedPath = nodePath.resolve(this.root, `.${nodePath.sep}${clientPath}`);
+      return nodePath.join(resolvedPath);
+    })();
+
+    return {
+      clientPath,
+      fsPath
+    };
+  }
+
+  currentDirectory() {
+    return this.cwd;
+  }
+
+  get(fileName) {
+    const {fsPath} = this._resolvePath(fileName);
+    return fs.statAsync(fsPath)
+    .then((stat) => _.set(stat, 'name', fileName));
+  }
+
+  list(path = '.') {
+    const {fsPath} = this._resolvePath(path);
+    return fs.readdirAsync(fsPath)
+    .then((fileNames) => {
+      return Promise.map(fileNames, (fileName) => {
+        const filePath = nodePath.join(fsPath, fileName);
+        return fs.accessAsync(filePath, fs.constants.F_OK)
+        .then(() => {
+          return fs.statAsync(filePath)
+          .then((stat) => _.set(stat, 'name', fileName));
+        })
+        .catch(() => null);
+      });
+    })
+    .then(_.compact);
+  }
+
+  chdir(path = '.') {
+    const {fsPath, clientPath} = this._resolvePath(path);
+    return fs.statAsync(fsPath)
+    .tap((stat) => {
+      if (!stat.isDirectory()) throw new errors.FileSystemError('Not a valid directory');
+    })
+    .then(() => {
+      this.cwd = clientPath;
+      return this.currentDirectory();
+    });
+  }
+
+  write(fileName, {append = false, start = undefined} = {}) {
+    const {fsPath, clientPath} = this._resolvePath(fileName);
+    const stream = fs.createWriteStream(fsPath, {flags: !append ? 'w+' : 'a+', start});
+    stream.once('error', () => fs.unlinkAsync(fsPath));
+    stream.once('close', () => stream.end());
+    return {
+      stream,
+      clientPath
+    };
+  }
+
+  read(fileName, {start = undefined} = {}) {
+    const {fsPath, clientPath} = this._resolvePath(fileName);
+    return fs.statAsync(fsPath)
+    .tap((stat) => {
+      if (stat.isDirectory()) throw new errors.FileSystemError('Cannot read a directory');
+    })
+    .then(() => {
+      const stream = fs.createReadStream(fsPath, {flags: 'r', start});
+      return {
+        stream,
+        clientPath
+      };
+    });
+  }
+
+  delete(path) {
+    const {fsPath} = this._resolvePath(path);
+    return fs.statAsync(fsPath)
+    .then((stat) => {
+      if (stat.isDirectory()) return fs.rmdirAsync(fsPath);
+      else return fs.unlinkAsync(fsPath);
+    });
+  }
+
+  mkdir(path) {
+    const {fsPath} = this._resolvePath(path);
+    return fs.mkdirAsync(fsPath)
+    .then(() => fsPath);
+  }
+
+  rename(from, to) {
+    const {fsPath: fromPath} = this._resolvePath(from);
+    const {fsPath: toPath} = this._resolvePath(to);
+    return fs.renameAsync(fromPath, toPath);
+  }
+
+  chmod(path, mode) {
+    const {fsPath} = this._resolvePath(path);
+    return fs.chmodAsync(fsPath, mode);
+  }
+
+  getUniqueName() {
+    return uuid.v4().replace(/\W/g, '');
+  }
+}
+module.exports = FileSystem;

old/src/helpers/file-stat.js

@@ -18,7 +18,8 @@ module.exports = function (fileStat, format = 'ls') {
 function ls(fileStat) {
   const now = moment.utc();
   const mtime = moment.utc(new Date(fileStat.mtime));
-  const dateFormat = now.diff(mtime, 'months') < 6 ? 'MMM DD HH:mm' : 'MMM DD  YYYY';
+  const timeDiff = now.diff(mtime, 'months');
+  const dateFormat = timeDiff < 6 ? 'MMM DD HH:mm' : 'MMM DD  YYYY';
 
   return [
     fileStat.mode ? [

old/src/helpers/find-port.js

@@ -0,0 +1,59 @@
+const net = require('net');
+const errors = require('../errors');
+
+const MAX_PORT = 65535;
+const MAX_PORT_CHECK_ATTEMPT = 5;
+
+function* portNumberGenerator(min, max = MAX_PORT) {
+  let current = min;
+  while (true) {
+    if (current > MAX_PORT || current > max) {
+      current = min;
+    }
+    yield current++;
+  }
+}
+
+function getNextPortFactory(host, portMin, portMax, maxAttempts = MAX_PORT_CHECK_ATTEMPT) {
+  const nextPortNumber = portNumberGenerator(portMin, portMax);
+  const portCheckServer = net.createServer();
+  portCheckServer.maxConnections = 0;
+
+  return () => new Promise((resolve, reject) => {
+    let attemptCount = 0;
+    const tryGetPort = () => {
+      attemptCount++;
+      if (attemptCount > maxAttempts) {
+        reject(new errors.ConnectorError('Unable to find valid port'));
+        return;
+      }
+
+      const {value: port} = nextPortNumber.next();
+
+      portCheckServer.removeAllListeners();
+      portCheckServer.once('error', (err) => {
+        if (['EADDRINUSE'].includes(err.code)) {
+          tryGetPort();
+        } else {
+          reject(err);
+        }
+      });
+      portCheckServer.once('listening', () => {
+        portCheckServer.close(() => resolve(port));
+      });
+
+      try {
+        portCheckServer.listen(port, host);
+      } catch (err) {
+        reject(err);
+      }
+    };
+
+    tryGetPort();
+  });
+}
+
+module.exports = {
+  getNextPortFactory,
+  portNumberGenerator
+};

old/src/index.js

@@ -0,0 +1,152 @@
+const _ = require('lodash');
+const Promise = require('bluebird');
+const nodeUrl = require('url');
+const buyan = require('bunyan');
+const net = require('net');
+const tls = require('tls');
+const EventEmitter = require('events');
+
+const Connection = require('./connection');
+const {getNextPortFactory} = require('./helpers/find-port');
+
+class FtpServer extends EventEmitter {
+  constructor(options = {}) {
+    super();
+    this.options = Object.assign({
+      log: buyan.createLogger({name: 'ftp-srv'}),
+      url: 'ftp://127.0.0.1:21',
+      pasv_min: 1024,
+      pasv_max: 65535,
+      pasv_url: null,
+      anonymous: false,
+      file_format: 'ls',
+      blacklist: [],
+      whitelist: [],
+      greeting: null,
+      tls: false,
+      timeout: 0
+    }, options);
+
+    this._greeting = this.setupGreeting(this.options.greeting);
+    this._features = this.setupFeaturesMessage();
+
+    delete this.options.greeting;
+
+    this.connections = {};
+    this.log = this.options.log;
+    this.url = nodeUrl.parse(this.options.url);
+    this.getNextPasvPort = getNextPortFactory(
+      _.get(this, 'url.hostname'),
+      _.get(this, 'options.pasv_min'),
+      _.get(this, 'options.pasv_max'));
+
+	const timeout = Number(this.options.timeout);
+	this.options.timeout = isNaN(timeout) ? 0 : Number(timeout);
+
+    const serverConnectionHandler = (socket) => {
+      socket.setTimeout(this.options.timeout);
+      let connection = new Connection(this, {log: this.log, socket});
+      this.connections[connection.id] = connection;
+
+      socket.on('close', () => this.disconnectClient(connection.id));
+
+      const greeting = this._greeting || [];
+      const features = this._features || 'Ready';
+      return connection.reply(220, ...greeting, features)
+      .finally(() => socket.resume());
+    };
+    const serverOptions = Object.assign({}, this.isTLS ? this.options.tls : {}, {pauseOnConnect: true});
+
+    this.server = (this.isTLS ? tls : net).createServer(serverOptions, serverConnectionHandler);
+    this.server.on('error', (err) => this.log.error(err, '[Event] error'));
+
+    const quit = _.debounce(this.quit.bind(this), 100);
+
+    process.on('SIGTERM', quit);
+    process.on('SIGINT', quit);
+    process.on('SIGQUIT', quit);
+  }
+
+  get isTLS() {
+    return this.url.protocol === 'ftps:' && this.options.tls;
+  }
+
+  listen() {
+    if (!this.options.pasv_url) {
+      this.log.warn('Passive URL not set. Passive connections not available.');
+    }
+
+    return new Promise((resolve, reject) => {
+      this.server.once('error', reject);
+      this.server.listen(this.url.port, this.url.hostname, (err) => {
+        this.server.removeListener('error', reject);
+        if (err) return reject(err);
+        this.log.info({
+          protocol: this.url.protocol.replace(/\W/g, ''),
+          ip: this.url.hostname,
+          port: this.url.port
+        }, 'Listening');
+        resolve('Listening');
+      });
+    });
+  }
+
+  emitPromise(action, ...data) {
+    return new Promise((resolve, reject) => {
+      const params = _.concat(data, [resolve, reject]);
+      this.emit.call(this, action, ...params);
+    });
+  }
+
+  setupGreeting(greet) {
+    if (!greet) return [];
+    const greeting = Array.isArray(greet) ? greet : greet.split('\n');
+    return greeting;
+  }
+
+  setupFeaturesMessage() {
+    let features = [];
+    if (this.options.anonymous) features.push('a');
+
+    if (features.length) {
+      features.unshift('Features:');
+      features.push('.');
+    }
+    return features.length ? features.join(' ') : 'Ready';
+  }
+
+  disconnectClient(id) {
+    return new Promise((resolve) => {
+      const client = this.connections[id];
+      if (!client) return resolve();
+      delete this.connections[id];
+      try {
+        client.close(0);
+      } catch (err) {
+        this.log.error(err, 'Error closing connection', {id});
+      } finally {
+        resolve('Disconnected');
+      }
+    });
+  }
+
+  quit() {
+    return this.close()
+    .finally(() => process.exit(0));
+  }
+
+  close() {
+    this.log.info('Server closing...');
+    this.server.maxConnections = 0;
+    return Promise.map(Object.keys(this.connections), (id) => Promise.try(this.disconnectClient.bind(this, id)))
+    .then(() => new Promise((resolve) => {
+      this.server.close((err) => {
+        if (err) this.log.error(err, 'Error closing server');
+        resolve('Closed');
+      });
+    }))
+    .then(() => this.removeAllListeners());
+  }
+
+}
+module.exports = FtpServer;

old/src/messages.js

@@ -0,0 +1,56 @@
+module.exports = {
+
+| 100
+| 110
+| 120
+| 125
+| 150
+
+
+
+| 200
+| 202
+| 211
+| 212
+| 213
+| 214
+| 215
+| 220
+| 221
+| 225
+| 226
+| 227
+| 230
+| 234
+| 250
+| 257
+
+
+| 331
+| 332
+| 350
+
+
+
+
+| 421
+| 425
+| 426
+| 450
+| 451
+| 452
+
+
+
+| 500
+| 501
+| 502
+| 503
+| 504
+| 530
+| 532
+| 550
+| 551
+| 552
+| 553
+};

old/test/commands/index.spec.js

@@ -1,5 +1,5 @@
 const {expect} = require('chai');
-const when = require('when');
+const Promise = require('bluebird');
 const bunyan = require('bunyan');
 const sinon = require('sinon');
 
@@ -11,7 +11,7 @@ describe('FtpCommands', function () {
   let mockConnection = {
     authenticated: false,
     log: bunyan.createLogger({name: 'FtpCommands'}),
-    reply: () => when.resolve({}),
+    reply: () => Promise.resolve({}),
     server: {
       options: {
         blacklist: ['allo']
@@ -20,7 +20,7 @@ describe('FtpCommands', function () {
   };
 
   beforeEach(() => {
-    sandbox = sinon.sandbox.create();
+    sandbox = sinon.sandbox.create().usingPromise(Promise);
 
     commands = new FtpCommands(mockConnection);
 
@@ -53,6 +53,36 @@ describe('FtpCommands', function () {
       expect(cmd.arg).to.equal('arg1 arg2');
       expect(cmd.raw).to.equal('test arg1 arg2');
     });
+
+    it('two args with quotes: test "hello world"', () => {
+      const cmd = commands.parse('test "hello world"');
+      expect(cmd.directive).to.equal('TEST');
+      expect(cmd.arg).to.equal('hello world');
+      expect(cmd.raw).to.equal('test "hello world"');
+    });
+
+    it('two args, with flags: test -l arg1 -A arg2 --zz88A', () => {
+      const cmd = commands.parse('test -l arg1 -A arg2 --zz88A');
+      expect(cmd.directive).to.equal('TEST');
+      expect(cmd.arg).to.equal('arg1 arg2 --zz88A');
+      expect(cmd.flags).to.deep.equal(['-l', '-A']);
+      expect(cmd.raw).to.equal('test -l arg1 -A arg2 --zz88A');
+    });
+
+    it('one arg, with flags: list -l', () => {
+      const cmd = commands.parse('list -l');
+      expect(cmd.directive).to.equal('LIST');
+      expect(cmd.arg).to.equal(null);
+      expect(cmd.flags).to.deep.equal(['-l']);
+      expect(cmd.raw).to.equal('list -l');
+    });
+
+    it('does not check for option flags', () => {
+      const cmd = commands.parse('retr -test');
+      expect(cmd.directive).to.equal('RETR');
+      expect(cmd.arg).to.equal('-test');
+      expect(cmd.flags).to.deep.equal([]);
+    });
   });
 
   describe('handle', function () {

old/test/commands/registration/abor.spec.js

@@ -1,21 +1,21 @@
-const when = require('when');
+const Promise = require('bluebird');
 const {expect} = require('chai');
 const sinon = require('sinon');
 
 const CMD = 'ABOR';
-describe(CMD, function () {
+describe.skip(CMD, function () {
   let sandbox;
   const mockClient = {
-    reply: () => when.resolve(),
+    reply: () => Promise.resolve(),
     connector: {
-      waitForConnection: () => when.resolve(),
-      end: () => when.resolve()
+      waitForConnection: () => Promise.resolve(),
+      end: () => Promise.resolve()
     }
   };
   const cmdFn = require(`../../../src/commands/registration/${CMD.toLowerCase()}`).handler.bind(mockClient);
 
   beforeEach(() => {
-    sandbox = sinon.sandbox.create();
+    sandbox = sinon.sandbox.create().usingPromise(Promise);
 
     sandbox.spy(mockClient, 'reply');
     sandbox.spy(mockClient.connector, 'waitForConnection');
@@ -25,29 +25,25 @@ describe(CMD, function () {
     sandbox.restore();
   });
 
-  it('// successful | no active connection', done => {
+  it('// successful | no active connection', () => {
     mockClient.connector.waitForConnection.restore();
     sandbox.stub(mockClient.connector, 'waitForConnection').rejects();
 
-    cmdFn()
+    return cmdFn()
     .then(() => {
       expect(mockClient.connector.waitForConnection.callCount).to.equal(1);
       expect(mockClient.connector.end.callCount).to.equal(0);
-      expect(mockClient.reply.args[0][0]).to.equal(226);
-      done();
-    })
-    .catch(done);
+      expect(mockClient.reply.args[0][0]).to.equal(225);
+    });
   });
 
-  it('// successful | active connection', done => {
-    cmdFn()
+  it('// successful | active connection', () => {
+    return cmdFn()
     .then(() => {
       expect(mockClient.connector.waitForConnection.callCount).to.equal(1);
       expect(mockClient.connector.end.callCount).to.equal(1);
       expect(mockClient.reply.args[0][0]).to.equal(426);
       expect(mockClient.reply.args[1][0]).to.equal(226);
-      done();
-    })
-    .catch(done);
+    });
   });
 });

old/test/commands/registration/allo.spec.js

@@ -1,4 +1,4 @@
-const when = require('when');
+const Promise = require('bluebird');
 const {expect} = require('chai');
 const sinon = require('sinon');
 
@@ -6,12 +6,12 @@ const CMD = 'ALLO';
 describe(CMD, function () {
   let sandbox;
   const mockClient = {
-    reply: () => when.resolve()
+    reply: () => Promise.resolve()
   };
   const cmdFn = require(`../../../src/commands/registration/${CMD.toLowerCase()}`).handler.bind(mockClient);
 
   beforeEach(() => {
-    sandbox = sinon.sandbox.create();
+    sandbox = sinon.sandbox.create().usingPromise(Promise);
 
     sandbox.spy(mockClient, 'reply');
   });
@@ -19,12 +19,10 @@ describe(CMD, function () {
     sandbox.restore();
   });
 
-  it('// successful', done => {
-    cmdFn()
+  it('// successful', () => {
+    return cmdFn()
     .then(() => {
       expect(mockClient.reply.args[0][0]).to.equal(202);
-      done();
-    })
-    .catch(done);
+    });
   });
 });

old/test/commands/registration/auth.spec.js

@@ -1,4 +1,4 @@
-const when = require('when');
+const Promise = require('bluebird');
 const {expect} = require('chai');
 const sinon = require('sinon');
 
@@ -6,15 +6,17 @@ const CMD = 'AUTH';
 describe(CMD, function () {
   let sandbox;
   const mockClient = {
-    reply: () => when.resolve(),
+    reply: () => Promise.resolve(),
     server: {
-      _tls: {}
+      options: {
+        tls: {}
+      }
     }
   };
   const cmdFn = require(`../../../src/commands/registration/${CMD.toLowerCase()}`).handler.bind(mockClient);
 
   beforeEach(() => {
-    sandbox = sinon.sandbox.create();
+    sandbox = sinon.sandbox.create().usingPromise(Promise);
 
     sandbox.spy(mockClient, 'reply');
   });
@@ -22,31 +24,25 @@ describe(CMD, function () {
     sandbox.restore();
   });
 
-  it('TLS // supported', done => {
-    cmdFn({command: { arg: 'TLS', directive: CMD}})
+  it('TLS // supported', () => {
+    return cmdFn({command: {arg: 'TLS', directive: CMD}})
     .then(() => {
       expect(mockClient.reply.args[0][0]).to.equal(234);
       expect(mockClient.secure).to.equal(true);
-      done();
-    })
-    .catch(done);
+    });
   });
 
-  it('SSL // not supported', done => {
-    cmdFn({command: { arg: 'SSL', directive: CMD}})
+  it('SSL // not supported', () => {
+    return cmdFn({command: {arg: 'SSL', directive: CMD}})
     .then(() => {
       expect(mockClient.reply.args[0][0]).to.equal(504);
-      done();
-    })
-    .catch(done);
+    });
   });
 
-  it('bad // bad', done => {
-    cmdFn({command: { arg: 'bad', directive: CMD}})
+  it('bad // bad', () => {
+    return cmdFn({command: {arg: 'bad', directive: CMD}})
     .then(() => {
       expect(mockClient.reply.args[0][0]).to.equal(504);
-      done();
-    })
-    .catch(done);
+    });
   });
 });

old/test/commands/registration/cdup.spec.js

@@ -1,4 +1,4 @@
-const when = require('when');
+const Promise = require('bluebird');
 const bunyan = require('bunyan');
 const {expect} = require('chai');
 const sinon = require('sinon');
@@ -8,15 +8,15 @@ describe(CMD, function () {
   let sandbox;
   let log = bunyan.createLogger({name: CMD});
   const mockClient = {
-    reply: () => when.resolve(),
+    reply: () => Promise.resolve(),
     fs: {
-      chdir: () => when.resolve()
+      chdir: () => Promise.resolve()
     }
   };
   const cmdFn = require(`../../../src/commands/registration/${CMD.toLowerCase()}`).handler.bind(mockClient);
 
   beforeEach(() => {
-    sandbox = sinon.sandbox.create();
+    sandbox = sinon.sandbox.create().usingPromise(Promise);
 
     sandbox.spy(mockClient, 'reply');
     sandbox.spy(mockClient.fs, 'chdir');
@@ -25,13 +25,11 @@ describe(CMD, function () {
     sandbox.restore();
   });
 
-  it('.. // successful', done => {
-    cmdFn({log, command: {directive: CMD}})
+  it('.. // successful', () => {
+    return cmdFn({log, command: {directive: CMD}})
     .then(() => {
       expect(mockClient.reply.args[0][0]).to.equal(250);
       expect(mockClient.fs.chdir.args[0][0]).to.equal('..');
-      done();
-    })
-    .catch(done);
+    });
   });
 });

old/test/commands/registration/cwd.spec.js

@@ -8,12 +8,12 @@ describe(CMD, function () {
   let log = bunyan.createLogger({name: CMD});
   const mockClient = {
     reply: () => {},
-    fs: { chdir: () => {} }
+    fs: {chdir: () => {}}
   };
   const cmdFn = require(`../../../src/commands/registration/${CMD.toLowerCase()}`).handler.bind(mockClient);
 
   beforeEach(() => {
-    sandbox = sinon.sandbox.create();
+    sandbox = sinon.sandbox.create().usingPromise(Promise);
 
     sandbox.stub(mockClient, 'reply').resolves();
     sandbox.stub(mockClient.fs, 'chdir').resolves();
@@ -23,63 +23,56 @@ describe(CMD, function () {
   });
 
   describe('// check', function () {
-    it('fails on no fs', done => {
-      const badMockClient = { reply: () => {} };
+    it('fails on no fs', () => {
+      const badMockClient = {reply: () => {}};
       const badCmdFn = require(`../../../src/commands/registration/${CMD.toLowerCase()}`).handler.bind(badMockClient);
       sandbox.stub(badMockClient, 'reply').resolves();
-      badCmdFn()
+
+      return badCmdFn()
       .then(() => {
         expect(badMockClient.reply.args[0][0]).to.equal(550);
-        done();
-      })
-      .catch(done);
+      });
     });
 
-    it('fails on no fs chdir command', done => {
-      const badMockClient = { reply: () => {}, fs: {} };
+    it('fails on no fs chdir command', () => {
+      const badMockClient = {reply: () => {}, fs: {}};
       const badCmdFn = require(`../../../src/commands/registration/${CMD.toLowerCase()}`).handler.bind(badMockClient);
       sandbox.stub(badMockClient, 'reply').resolves();
-      badCmdFn()
+
+      return badCmdFn()
       .then(() => {
         expect(badMockClient.reply.args[0][0]).to.equal(402);
-        done();
-      })
-      .catch(done);
+      });
     });
   });
 
-  it('test // successful', done => {
-    cmdFn({log, command: { arg: 'test', directive: CMD}})
+  it('test // successful', () => {
+    return cmdFn({log, command: {arg: 'test', directive: CMD}})
     .then(() => {
       expect(mockClient.reply.args[0][0]).to.equal(250);
       expect(mockClient.fs.chdir.args[0][0]).to.equal('test');
-      done();
-    })
-    .catch(done);
+    });
   });
 
-  it('test // successful', done => {
+  it('test // successful', () => {
     mockClient.fs.chdir.restore();
     sandbox.stub(mockClient.fs, 'chdir').resolves('/test');
-    cmdFn({log, command: { arg: 'test', directive: CMD}})
+
+    return cmdFn({log, command: {arg: 'test', directive: CMD}})
     .then(() => {
       expect(mockClient.reply.args[0][0]).to.equal(250);
       expect(mockClient.fs.chdir.args[0][0]).to.equal('test');
-      done();
-    })
-    .catch(done);
+    });
   });
 
-  it('bad // unsuccessful', done => {
+  it('bad // unsuccessful', () => {
     mockClient.fs.chdir.restore();
     sandbox.stub(mockClient.fs, 'chdir').rejects(new Error('Bad'));
 
-    cmdFn({log, command: { arg: 'bad', directive: CMD}})
+    return cmdFn({log, command: {arg: 'bad', directive: CMD}})
     .then(() => {
       expect(mockClient.reply.args[0][0]).to.equal(550);
       expect(mockClient.fs.chdir.args[0][0]).to.equal('bad');
-      done();
-    })
-    .catch(done);
+    });
   });
 });

old/test/commands/registration/dele.spec.js

@@ -8,12 +8,12 @@ describe(CMD, function () {
   let log = bunyan.createLogger({name: CMD});
   const mockClient = {
     reply: () => {},
-    fs: { delete: () => {} }
+    fs: {delete: () => {}}
   };
   const cmdFn = require(`../../../src/commands/registration/${CMD.toLowerCase()}`).handler.bind(mockClient);
 
   beforeEach(() => {
-    sandbox = sinon.sandbox.create();
+    sandbox = sinon.sandbox.create().usingPromise(Promise);
 
     sandbox.stub(mockClient, 'reply').resolves();
     sandbox.stub(mockClient.fs, 'delete').resolves();
@@ -23,51 +23,45 @@ describe(CMD, function () {
   });
 
   describe('// check', function () {
-    it('fails on no fs', done => {
-      const badMockClient = { reply: () => {} };
+    it('fails on no fs', () => {
+      const badMockClient = {reply: () => {}};
       const badCmdFn = require(`../../../src/commands/registration/${CMD.toLowerCase()}`).handler.bind(badMockClient);
       sandbox.stub(badMockClient, 'reply').resolves();
-      badCmdFn()
+
+      return badCmdFn()
       .then(() => {
         expect(badMockClient.reply.args[0][0]).to.equal(550);
-        done();
-      })
-      .catch(done);
+      });
     });
 
-    it('fails on no fs delete command', done => {
-      const badMockClient = { reply: () => {}, fs: {} };
+    it('fails on no fs delete command', () => {
+      const badMockClient = {reply: () => {}, fs: {}};
       const badCmdFn = require(`../../../src/commands/registration/${CMD.toLowerCase()}`).handler.bind(badMockClient);
       sandbox.stub(badMockClient, 'reply').resolves();
-      badCmdFn()
+
+      return badCmdFn()
       .then(() => {
         expect(badMockClient.reply.args[0][0]).to.equal(402);
-        done();
-      })
-      .catch(done);
+      });
     });
   });
 
-  it('test // successful', done => {
-    cmdFn({log, command: { arg: 'test', directive: CMD}})
+  it('test // successful', () => {
+    return cmdFn({log, command: {arg: 'test', directive: CMD}})
     .then(() => {
       expect(mockClient.reply.args[0][0]).to.equal(250);
       expect(mockClient.fs.delete.args[0][0]).to.equal('test');
-      done();
-    })
-    .catch(done);
+    });
   });
 
-  it('bad // unsuccessful', done => {
+  it('bad // unsuccessful', () => {
     mockClient.fs.delete.restore();
     sandbox.stub(mockClient.fs, 'delete').rejects(new Error('Bad'));
 
-    cmdFn({log, command: { arg: 'bad', directive: CMD}})
+    return cmdFn({log, command: {arg: 'bad', directive: CMD}})
     .then(() => {
       expect(mockClient.reply.args[0][0]).to.equal(550);
       expect(mockClient.fs.delete.args[0][0]).to.equal('bad');
-      done();
-    })
-    .catch(done);
+    });
   });
 });