Show HN: Dotenv Mask Editor: No more embarrassing screen leaks of your .env
17 points
9 hours ago
| 7 comments
| marketplace.visualstudio.com
| HN
Hi HN,

I built this because I often work in coworking spaces or do screen sharing, and I've always had this fear of accidentally flashing my .env file with production secrets to the whole room (or recording).

It’s a simple VS Code extension that opens .env files in a custom grid editor. It automatically masks any value longer than 6 characters so I can safely open the file to check keys without exposing the actual secrets.

It runs 100% locally with zero dependencies (I know how sensitive these files are). It just reads the file, renders the grid, and saves it back as standard text.

It's open source (MIT) and I'd love any feedback on the masking logic or other features that would make it safer to use.

Marketplace: https://marketplace.visualstudio.com/items?itemName=xinbenlv... Github https://github.com/xinbenlv/dotenv-mask-editor

esperent
3 hours ago
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I recently got a phone with a high zoom level - once you factor in digital zooming it's 20x. The photo quality at that zoom level is trash, but it absolutely could be used to read text from people's laptop screens from across a big room, or even another building through a window.

Of course, real cameras have always had this kind of zoom level. The difference is that now, someone could appear to be browsing on their phone from very far away, but actually be reading text on your laptop screen.

It's much more likely they'll be looking for credit card details or something like that rather than .env secrets. But I guess it's better safe than sorry if you frequently work in a public, tech focused environment like a big coworking space.

We're talking someone sitting with their phone 50 meters away from you being able to read text on your laptop screen. That's about the distance where a person with good vision will struggle to recognize faces.

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verdverm
3 hours ago
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Would they need something to help with stabilization at that zoom and distance?
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esperent
43 minutes ago
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Like sitting at a table and resting their phone on it, sure.
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canadiantim
3 hours ago
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A selfie tripod
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__MatrixMan__
4 hours ago
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I recently made this as a component in a larger project https://gist.github.com/MatrixManAtYrService/7fc7fb05474d971...

The idea is that even if you can't see the full data for some reason (space constraints, in my case), different values will appear styled differently even if the non-hidden characters don't differ.

I'm not sure how easy/hard vscode makes this, bit it might be fun to use a hash of the secret (salted by that character's index) to determine the back/foreground colors of the *'s

That way even though you can't see the secret, you can tell that it has changed. Also you're in a position to notice if two hidden secrets are the same (this might clue the user into a mistake, like if they didn't actually copy what they think they copied and are instead pasting the previous thing.

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dietr1ch
4 hours ago
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> I've always had this fear of accidentally flashing my .env file with production secrets to the whole room (or recording).

Can't you just intersperse entries with multiple-screens-worth of blank lines, or add noisy variables?

I'm thinking that 120 blank lines at the beginning and the end might be enough though, no need to make the file really hard to use.

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electromech
1 hour ago
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or, don't put secrets in .env files...
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globular-toast
2 hours ago
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Why would you have "production secrets" in a .env file in the first place? I feel like that's the real problem here.
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xinbenlv
2 hours ago
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We use infiscial and other mechanism but hey, wouldn't it be nice to have one less square inch of attack surface?
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globular-toast
57 minutes ago
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Why not have one less square mile of attack surface by not having secrets in a .env file in the first place?

What are people doing that requires something like this?

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svgeek
4 hours ago
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OMG,I wish I had this years ago!
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xinbenlv
3 hours ago
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Thanks, glad you liked it!
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theozero
8 hours ago
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Better than masking them in a file, get them out of the file entirely! Pull them declaratively instead - https://varlock.dev

This tool also redacts from your logs if working in js.

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verdverm
3 hours ago
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This appears to be the only comment you make on HN

https://news.ycombinator.com/threads?id=theozero

Using HN less like a marketing platform would be appreciated

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NewJazz
3 hours ago
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What does this offer that a scriptlet that sets the envvars doesn't?
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