File share

CLI app to send and receive files between two or more clients and a server. Clients can subscribe(listen) to specific channels and servers coordinate them (receive files and redirect them to their destination).

Custom protocol over TCP

A simple protocol to enable the communication between client and server.

• Sending files: -> <content-size> <file> <channel>
• Subscribing to channel: listen <channel>

General working of the server

Click the image

Usage

Usage:
  client-server [command]

Available Commands:
  client      Initialize a client
  completion  Generate the autocompletion script for the specified shell
  help        Help about any command
  server      Initialize the server

Flags:
  -h, --help     help for client-server
  -t, --toggle   Help message for toggle

Starting the server

To start the server with default options run ./client-server server. More options/flags:

Flags:
  -c, --channels int   Tells the number of channels to create. (default 3)
  -h, --help           help for server
  -m, --max int        Maximum supported filesize (B). (default 4096)

Sending files

To send a file to the server on channel e.g (1) run:

./client-server client send --channel 1 ../foo.txt

To see additional flags and information run

./client-server client send --help

Listening(subscribing) to a channel

run: ./client-server client receive --channel 1

as usual help for the command is displayed by doing

./client-server client --help

Frontend

The frontend serves as a reporting page where general information about the server is displayed:

• Current file and size being transmitted on each channel.
• Current clients listening over each channel.
• Amount of bytes transmitted since the last update on each channel.
• Line graph showing historic data of total concurrent clients.
• Filetypes transmitted.

The frontend running on port 5173 gets all this data from an API running on port 8080 by making a GET request to the /info route. Said API is started alongside the server but they are different applications.

Built with

• net package.
• gin (API).

• cobra (CLI arguments).

• Vue.js (Front-end).

• Charts.js

• Bootstrap 5 (styling and css classes).