Show HN: Print a WiFi Login Card • Hacker News Board

Re: Show HN: Print a WiFi Login Card

#51

Post by tkuraku » Sun, Jul 11, 2021, 6:59 PM UTC

I just generate a QR code for my wifi login using libreoffice writer.

Edit: just use the built in QR code generator with a string in this format.

WIFI:T:WPA;S:$SSID;P:$PASSWORD

Re: Show HN: Print a WiFi Login Card

#52

Post by shoto_io » Sun, Jul 11, 2021, 7:01 PM UTC

I am sure that this is not what this site is for. But...

For a moment I thought: What a great attack vector. Collect WiFi passwords from around the globe.

Re: Show HN: Print a WiFi Login Card

#53

Post by captn3m0 » Sun, Jul 11, 2021, 7:01 PM UTC

floatingatoll wrote: post #37

Zash wrote: post #34

qrencode -t utf8 'WIFI:T:WPA;S:network;P:password;;'

Did you type this in from memory?!

There is no real specification. This is the best source[1], which documents QR standards.

>There are some standards -- de facto and otherwise -- already in use. This wiki attempts to catalog some possible standards for encoding various types of information, and suggest a standard action associated to them.

[1]: https://github.com/zxing/zxing/wiki/Barcode-Contents#wi-fi-n...

Re: Show HN: Print a WiFi Login Card

#54

Post by captn3m0 » Sun, Jul 11, 2021, 7:02 PM UTC

j03b wrote: post #33

gruez wrote: post #6

On ios it works fine with the default camera app, but what about android? I'd guess support varies depending on vendor?

Seems to be using the same format as https://qifi.org/ , which lists supported devices, but of course due to the lack of native QR on most Android devices it's per-app rather than per-phone.

It's 2021 and Android still has fragmented QR scanning.

Re: Show HN: Print a WiFi Login Card

#55

Post by PenguinCoder » Sun, Jul 11, 2021, 7:06 PM UTC

_def wrote: post #42

I got a QR code like this on the wall with the SSID and the password written on the paper as well as a NFC tag with the wifi credentials between the paper and the wall. I think nobody ever has scanned the QR code.

I have a QR code for guests and Wi-Fi too. Unfortunately it doesn't seem to work as expected on iphones but works fine on Android. Wouldn't think a QR code was platform specific.

Re: Show HN: Print a WiFi Login Card

#56

Post by cortesoft » Sun, Jul 11, 2021, 7:07 PM UTC

BugsJustFindMe wrote: post #46

Asking as a person who understands the fundamentals of all of the technologies involved but is horrified by much of what goes on in the minds of today's web developers and designers, what motivates the decision to make this repo use make, docker, yarn, npx, nginx, react, and jest rather than a bit of static HTML and css and something like qrjs2.js or VanillaQR.js with a simple canvas or datauri update in onInput?

I often choose simple, useful projects for learning new technology… i can’t learn something new if I am not using it for something useful, but I also don’t want to try to learn something new WHILE also solving a challenging problem… so something simple like this is a great sweet spot to learn new tech.

Re: Show HN: Print a WiFi Login Card

#57

Post by [deleted] » Sun, Jul 11, 2021, 7:08 PM UTC

fulafel wrote: post #44

mrfusion wrote: post #39

Earlier quoted context omitted.

Airplane mode?

The page might start a service worker and exfiltrate the data when connectivity returns even after the tab is closed.

[deleted]

Re: Show HN: Print a WiFi Login Card

#58

Post by i5heu » Sun, Jul 11, 2021, 7:08 PM UTC

How convenient I asked myself this question about five hours ago!

There are chances out there, unbelievable.

Re: Show HN: Print a WiFi Login Card

#59

Post by catchmeifyoucan » Sun, Jul 11, 2021, 7:09 PM UTC

BugsJustFindMe wrote: post #46

Asking as a person who understands the fundamentals of all of the technologies involved but is horrified by much of what goes on in the minds of today's web developers and designers, what motivates the decision to make this repo use make, docker, yarn, npx, nginx, react, and jest rather than a bit of static HTML and css and something like qrjs2.js or VanillaQR.js with a simple canvas or datauri update in onInput?

This app seems its using create react app, so agreed the app might come with a few extra things that you might not need. However, there are a few reasons I might choose CRA over static HTMl. Don’t get me wrong, HTML is great, but the developer experience can be primative.

Here is why I like using CRA for some projects:

1. Live reload. This comes for free with CRA. Makes dev work easy.

2. As easy as installing a component and getting started. And they logically fit in the code flow. Native import libraries, you have to write the JavaScript and point em to your divs and dom and initialize em.

3. Let’s say in the future, I want to reuse the code logic in a different app, I can just take the js and element as one unified component and move it across.

Tbh, for an app like this, after doing a production build (npm run build), I don’t think it’d make a radical difference in performance with raw html or react. Might just be dev preference, and ease of use.

Re: Show HN: Print a WiFi Login Card

#60

Post by thepete2 » Sun, Jul 11, 2021, 7:09 PM UTC

shoto_io wrote: post #52

I am sure that this is not what this site is for. But... For a moment I thought: What a great attack vector. Collect WiFi passwords from around the globe.

My first though was "Why would I ever enter my wifi credentials into a web form?", but perhaps there are people who would...