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Jonathan Flueren 2023-08-17 21:01:43 +02:00
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README.md
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@ -2,7 +2,8 @@
Tool to detect the presence of defined devices by their WiFi MAC addresses.
## How scanning works
Sets the wifi adapter into monitor mode, then listens to surrounding packets listing all detected devices into `wifi_map.yaml`. Resets the wifi adapter to normal mode for uploading the results, filters the results by the mac addresses in `identities.yaml` and sends all matched identities to the front-end webhook server in `website`. This server stores the presence information locally and displays it with `website/index.php` with a timestamp of the last update.
Sets the wifi adapter into monitor mode, then listens to surrounding packets listing all detected devices into `wifi_map.yaml`.
Then, periodically filters the results by the mac addresses that opted in on the website from `identities.json` and sends all matched identities to the website via a signed webhook. This website stores the presence information locally and displays it with `website/index.php` with a timestamp of the last update.
## What the website is capable of
Shows the last update of the `upload.py` routine. It also allows to add identities by their name and mac and to delete identities by their mac. The mac addresses are hashed server-side and then stored into the world-accessible `identities.json`.
@ -15,13 +16,14 @@ Dependencies:
Configs to change:
- `scanner/live-scanner.sh`:
- WiFi adapter name
- Possibly some more system-specific changes
- `scanner/upload.py`:
- URLs for webhook and identities
- webhook secret
- `public/update.php`:
- webhook secret
Put `scanner` onto the scanning device (e.g. Raspberry Pi) and put `scanner/scan.sh` into a cron job.
Put `scanner` onto the scanning device (e.g. Raspberry Pi). Let `live-scanner.sh` and `live-uploader.sh` running in the background, e.g. by the Systemd services below.
Put `website` onto a php-capable webserver and point your domain to it.
## Systemd services