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droppy is a self-hosted file storage server with a web interface and capabilities to edit files and view media directly in the browser. It is particularly well-suited to be run on low-end hardware like the Raspberry Pi.

Features (try the demo)

  • Responsive, scalable HTML5 interface
  • Realtime updates of file system changes
  • Directory and Multi-File upload
  • Drag-and-Drop support
  • Clipboard support to create image/text files
  • Side-by-Side mode
  • Simple and fast Search
  • Shareable public download links
  • Zip download of directories
  • Powerful text editor with themes and broad language support
  • Image and video gallery with touch support
  • Audio player with seeking support
  • Fullscreen support for editor and gallery
  • Supports installing to the homescreen
  • Docker images available for x86-64, ARMv6, ARMv7 and ARMv8

General Information

Two directories will be used, one for configuration and one for the actual files:

  • config: defaults to ~/.droppy/config, override with -c /some/dir
  • files: default ~/.droppy/files override with -f /some/dir

droppy maintains an in-memory representation of the files directory. If you're on slow storage and/or serving 100k or more files, the initial indexing on startup will likely take some time.

Installation

Local Installation 📦

With Node.js >= 8.0.0 installed, run:

$ sudo npm install -g --production droppy
$ droppy start -c /srv/droppy/config -f /srv/droppy/files

To update, run

$ sudo npm update -g --production droppy

To make droppy run in the background, you can use the --daemon option, thought it is adviced that you install it as a persistent service in your system. For Linux, see these guides:

Docker installation 🐳

The following images are available:

To pull and run, use:

$ docker run --name droppy -p 127.0.0.1:8989:8989 silverwind/droppy

This method uses automatic volumes for /config and /files which can be overridden through -v /srv/droppy/config:/config and -v /srv/droppy/files:/files. If you're using existing files, it's advisable to use -e UID=1000 -e GID=1000 to get new files written with correct ownership.

To update a docker installation, run

$ docker pull silverwind/droppy
$ docker stop droppy && docker rm droppy
$ docker run --name droppy -p 127.0.0.1:8989:8989 silverwind/droppy

docker-compose

Alternatively, you can use the example docker-compose.yml:

$ curl -O https://raw.githubusercontent.com/silverwind/droppy/master/examples/docker-compose.yml
$ docker-compose up

This example docker-compose.yml uses the subdirectories config and files of the current working directory for storing data.

Caddy

See the example Caddyfile.

Configuration

By default, the server listens on all IPv4 and IPv6 interfaces on port 8989. On first startup, a prompt to create login data for the first account will appear. Once it's created, login credentials are enforced. Additional accounts can be created in the options interface or the command line. Configuration is done in config/config.json, which is created with these defaults:

{
  "listeners" : [
    {
      "host": ["0.0.0.0", "::"],
      "port": 8989,
      "protocol": "http"
    }
  ],
  "public": false,
  "timestamps": true,
  "linkLength": 5,
  "linkExtensions": false,
  "logLevel": 2,
  "maxFileSize": 0,
  "updateInterval": 1000,
  "pollingInterval": 0,
  "keepAlive": 20000,
  "allowFrame": false,
  "readOnly": false,
  "ignorePatterns": [],
  "watch": true,
  "headers": {}
}

Options

  • listeners Array - Defines on which network interfaces, port and protocols the server will listen. See listener options below. listeners has no effect when droppy is used as a module. The default listens on HTTP port 8989 on all interfaces and protocols.
  • public boolean - When enabled, no user authentication is performed. Default: false.
  • timestamps boolean - When enabled, adds timestamps to log output. Default: true.
  • linkLength number - The amount of characters in a shared link. Default: 5.
  • linkExtensions boolean - Whether shared links should include the file extension. This can be used to allow other software to make a guess on the content of the file without actually retrieving it. Default: false.
  • logLevel number - Logging amount. 0 is no logging, 1 is errors, 2 is info (HTTP requests), 3 is debug (Websocket communication). Default: 2.
  • maxFileSize number - The maximum file size in bytes a user can upload in a single file. 0 means no limit. Default: 0.
  • updateInterval number - Interval in milliseconds in which a single client can receive update messages through changes in the file system. Default: 1000.
  • pollingInterval number - Interval in milliseconds in which the file system is polled for changes, which may necessary for files on external or network-mapped drives. Corresponds to chokidar's usePolling option. This is CPU-intensive. 0 disables polling. Default: 0.
  • keepAlive number - Interval in milliseconds in which the server sends websocket keepalive messages, which may be necessary when proxies are involved. 0 disables keepalive messages. Default: 20000.
  • allowFrame boolean - Allow the page to be loaded into a <frame> or <iframe>. Default: false.
  • readOnly boolean - Treat all files as being read-only. Default: false.
  • compression boolean - Whether to serve brotli/gzip compressed static content. Default: true. Note that compression incurs no performance penalty because pre-compressed artifacts are included in the distribution. Default: true.
  • dev boolean - Enable developer mode, skipping resource minification and enabling live reload. Default: false.
  • ignorePatterns Array - Array of file path glob patterns to ignore when indexing files. See here for supported patterns. Default: [].
  • watch boolean - Whether to watch the local file system for changes. Disabling this may improve performance when dealing with a large number of files, but with the downside that changes not done via droppy won't be detected. Default: true.
  • headers Object: A object with key-value pairs of custom HTTP headers to set on all responses, for example {"Access-Control-Allow-Origin": "*"}. Default: {}.

Listener Options

listeners defines on which network interfaces, ports and protocol(s) the server will listen. For example:

"listeners": [
  {
    "host": "::",
    "port": 80,
    "socket": "/tmp/droppy",
    "protocol": "http"
  },
  {
    "host": "0.0.0.0",
    "port": 443,
    "protocol": "https",
    "key": "~/certs/example.com.key",
    "cert": "~/certs/example.com.crt",
    "dhparam": "~/certs/example.com.dh",
    "hsts": 31536000
  }
]

The above configuration will result in:

  • HTTP listening on all IPv4 and IPv6 interfaces, port 80 and on the unix domain socket /tmp/droppy.
  • HTTPS listening on all IPv4 interfaces, port 443, with 1 year of HSTS duration, using the provided TLS files.

A listener object accepts these options:

  • host string/Array - Network interface(s) addresses to listen on. Required when port is given. Note that "::" will typically bind to both IPv4 and IPv6 on all addresses but a "0.0.0.0" address might be required if IPv6 is disabled.
  • port number/string/Array - Network port(s) to listen on. Required when host is given.
  • socket string/Array - Unix domain socket(s) to listen on.
  • protocol string - Protocol to use, http or https. Required.

For TLS the following additional options are available. Paths can be given relative to the configuration directory and ~ is resolved as expected.

  • cert string - Path to PEM-encoded TLS certificate file, which can include additional intermediate certificates concatenated after the main certificate. Required.
  • key string - Path to PEM-encoded TLS private key file. Required.
  • dhparam string - Path to PEM-encoded TLS Diffie-Hellman parameters file. If not provided, new 2048 bit parameters will be generated on launch and saved for future use.
  • passphrase string - Passphrase for the TLS private key in case it is encrypted.
  • hsts number - Length of the HSTS header in seconds. Set to 0 to disable HSTS.

API

droppy can be used with express, see the express example.

droppy([options])

  • options Object: Options. Extends config.json. In addition to above listed options, configdir, filesdir and log are present on the API.

Returns a object {onRequest, setupWebSocket}.

Browser support

droppy supports all modern browsers that can run ECMAScript 2015 or newer.

Working with other websocket servers

To use droppy in a server that uses other websocket applications on the same port you can pass false to setupWebSocket instead of a server object. The function will return a websocket server object that you can use like normal in your application. See documentation for the ws npm package for more information.

Downloading from the command line

To download shared links with curl and wget to the correct filename:

$ curl -OJ url
$ wget --content-disposition url

Development

To start a live-reloading dev server:

$ git clone https://github.com/silverwind/droppy && cd droppy
$ npm i
$ node droppy start --dev

The Makefile has a few tasks for updating dependencies, pushing docker images, see the comment above for dependencies of those tasks.

© silverwind, distributed under BSD licence.