go-fileshare

A quite simple and dirty go application for sharing files on a local directory through a builtin webserver.

Features

• Only 10.9 MB of Docker image
• Cross-platform
• Directory are tar.gz compressed on the fly

Recording

How does this work?

The application is started using docker and watches any mounted directory. If a new file is created in the directory, a hash is generated and stored in a meta file next to the file (see the recording). The webserver provides the file and its metadata using this hash. A simple config.yaml file is used to configure the application. To delete a shared file, simply delete the file (and the meta file).

An additional feature is shortify the url using a (custom) Kutt installation.

Background

I'm running a TrueNAS Scale server with a NFS share (as well as an SMB share). I simply want to share a file on that network drive with other persons. My main requirement was to only invest a couple of hours - so no fancy dolphin integration or complex web ui. So here is my solution, quite simple and very dirty ;).

Installation

Create a config.yaml file somewhere with this content:

DataFile: data.yaml
BaseUrl: http://localhost:8080 # so the generated urls are correct
kutt: # Kutt data
  key: ....
  enabled: false
  url: https://kutt.yourdomain.com/
hashLength: 128

The image is based on the distroless image and therefore, the user nonroot (65532:65532) is used internally. Set the correct file permissions for the config.yaml file and the shared dir, for example: chown :65532 config.yaml -R && chmod 660 config.yaml.

After starting the container using a method from down below, optionally add a reverse proxy in front of the container.

Docker

docker run -ti  --name="fileshare" --restart="always" -v $(pwd)/data:/data -v $(pwd)/config:/workdir -p 8080:8080 ghcr.io/alexander-lindner/go-fileshare:latest

Docker-compose

version: '3.3'
services:
    fileshare:
        restart: always
        volumes:
            - './data:/data'
            - './config:/workdir'
        ports:
            - '8080:8080'
        image: 'ghcr.io/alexander-lindner/go-fileshare:latest'

TrueNAS Scale (Helm)

Add this repo as a Catalog:

Key	Value
Name	go-fileshare
Url	https://github.com/alexander-lindner/go-fileshare
Branch	master
Preferred Trains	stable

Find the application and install it:

Configure the path and add your Ingress configuration.

Customizing

You can customize the web ui by mounting a custom static directory next to the config.yaml. Start by coping the static directory from the current running container:

docker cp CONTAINER_ID:/static ./static

Then restart the container. The webserver provides an api under the /[HASH]/api path. /[HASH]/download is the path for downloading, /[HASH]/view for previewing.

ToDo's

• preview directories
• support deleting files
• multiple mounted directories
• support custom Kutt url
• Fix data.meta file is created
• remove directory name in downloaded tar.gz
• preview of the content from tar.gz, zip, rar, 7z, ...
• replacing the current html+js setup with https://github.com/valyala/fasttemplate
• curl mode (detecting curl browser agent and show text only)

Etc

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