[sudo-access] magnetic card reader error codes as peoples' card hashes

[Yardena Cohen]

On Wed, Nov 29, 2017 at 6:32 PM, Marc Juul <marc at juul.io> wrote:
> Integration is definitely doable. The problem is that the previous
> scancode_decode.js (the one we currently use) was very incomplete and could
> not interpret the characters that inform about errors. In order to detect
> the errors the new scancode_decode.js must be used (from the commit I
> previously mentioned) but using that scancode_decode means breaking
> compatibility. The solution is to use the improved scancode_decode first and
> if there are no errors but none of the hashes in the database matched then
> retry with the old scancode_decode.

Ok, I just finally looked through the old and new code to integrate
them. I pushed a new branch called "errors" which I think will work.
I'll be at Omni tomorrow to test it and hopefully put it into
production.

https://github.com/sudoroom/doorjam/commit/d80d363b7e31fbb83a08226d08e733aac92fe173