2020-03-10 13:44:28 +00:00
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# tvid
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2020-03-11 02:38:40 +00:00
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## Problem
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2020-03-10 13:44:28 +00:00
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2020-03-11 02:38:40 +00:00
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You want to deploy a bunch of cheap $150 giant TVs to display dashboards and
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status stuff, but you don't want to image the Raspberry Pis separately or
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hook up keyboards/mouse.
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## Solution
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Make a single OS image for all your display-driving SBCs that goes to a
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non-unique URL: this app.
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This app lets you set all the kiosk/display TVs in your organization to the
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same URL. Each will be cookied with a unique ID that will display on each
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display in big letters, with no preconfiguration required.
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Log in to the admin panel (`/admin`) and enter the URL target for that
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display, and within 60 seconds, that display will bounce to that URL, or any
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other time it turns on.
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2020-03-10 13:44:28 +00:00
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2020-03-11 01:52:30 +00:00
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You can reconfigure the target URL at any time, and the next time that
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display reboots or reloads (you should be rebooting your displays daily) it
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will get redirected to the new target.
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# configuration knobs
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## environment variables
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* set `ADMIN_PSK` to the admin password (for `/admin` url)
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## state storage
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* writes sqlite database into `/data`, mount that volume somewhere
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2020-03-10 13:44:28 +00:00
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# todo
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2020-03-11 16:13:50 +00:00
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* fix CSRF bug
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2020-03-11 01:52:30 +00:00
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* fix FIXMEs
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2020-03-11 16:13:50 +00:00
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* fix logging output (that is, make it log anything)
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2020-03-11 01:52:30 +00:00
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* put git short id into version string
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2020-03-11 02:38:40 +00:00
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* make sure cookie expiration is correct
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* sessions maybe
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* configuration in db to support password changes
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2020-03-11 16:13:50 +00:00
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* perhaps load the target in a fullsize iframe so that the target can be
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changed by the js on server update instead of having to reboot the display
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box
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2020-03-11 02:38:40 +00:00
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# screenshots
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## Display ID screen
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(This is what gets displayed on a TV. It animates to avoid screenburn.)
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## Login Page
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## Admin Panel
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2020-03-11 01:52:30 +00:00
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# license
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WTFPL
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2020-03-10 13:44:28 +00:00
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2020-03-11 16:13:50 +00:00
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# status
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This is not enterprise-production-grade software yet.
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It has a CSRF bug (low severity) and it stores your unhashed auth password
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in a cookie. I didn't even check how long the per-device cookie expirations
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are, so it might have a big painful bug there too. I made it to scratch an
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itch and I am running it in production; I may improve it further but it
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works for my purposes (being able to flash a half-dozen display driver
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raspberry pis with the same image) as-is.
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Patches and improvements and bug reports are welcome. Send me an email at
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the address below.
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2020-03-10 13:44:28 +00:00
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# author
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sneak <[sneak@sneak.berlin](mailto:sneak@sneak.berlin)>
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