Visgean / qr-wifi

CLI tool to show QR codes with wifi password from Ubuntu settings

Generate WiFI QR codes on Ubuntu

New versions of Android and iPhone can connect to wifi just by scanning QR code in the default camera application. I think this is pretty cool. Creating these QR code is a bit cumbersome in my experience. You have to generate it manually which requires remembering the password in the first place.

To make it a bit easier I wanted to just type the wifi name and get the QR code, which is what this project does!

Warning

This is very hacky:

• it directly reads the .ini files in /etc/NetworkManager/system-connections and . This is almost certainly a bad way of getting wifi passwords.
• It needs sudo access.
• It's my first Go utility and it was written mostly for fun and learning.
• I don't plan to maintain it whatsoever :)

Example

Installation:

$ go get github.com/Visgean/qr-wifi

(Plus you need to make sure that you have a $GO_PATH/bin in your .bashrc path.)

Usage

Show QR codes for all networks:

$  sudo $GOPATH/bin/qr-wifi 

Filter networks by name:

$  sudo $GOPATH/bin/qr-wifi cafe1

Hacky way to get rid of sudo:

I only use it on personal, encrypted computer to which no-one else has access to, so I don't care much for security on this level. Therefore I am happy to use this permission to avoid typing sudo:

$ sudo chown root:root `which qr-wifi`
$ sudo chmod 4775 `which qr-wifi`

Read more about it here

Kudos:

This project is based on @fumiyas/qrc.