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11 Commits
1.0.5 ... main

Author SHA1 Message Date
968a171c6f update build script to use new name 2025-06-09 15:00:27 +01:00
3581873b41 run commands as sudo 2025-06-09 13:51:05 +01:00
5934a79525 add basic api 2025-06-09 13:47:58 +01:00
28d7d22cd5
Update main.yml
only on tag
2025-06-09 13:47:19 +01:00
81385f2f0e
Update main.yml
remove x86 support
2025-06-09 13:46:31 +01:00
cdd2bc2d02 fixes for all services and reverts 2025-06-04 12:59:05 +01:00
8f4762a32d Merge branch 'main' of https://github.com/karl0ss/AnotterKiosk 2025-06-04 10:34:04 +01:00
17913a5da3 not sure why this hasn't been set on the image 2025-06-04 10:34:02 +01:00
dee5a36fda
Update README.md 2025-06-02 16:22:10 +01:00
94cd861c10 remove the locked / root fs 2025-06-02 15:38:08 +01:00
225cb14d3d Fix executable bit on refresh-screen and setup-refresh-timer 2025-06-02 14:18:50 +01:00
12 changed files with 206 additions and 71 deletions

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@ -1,43 +1,14 @@
name: CI
on:
create: { }
pull_request: { }
push:
tags:
- '*' # Triggers on any tag push
permissions:
contents: write
jobs:
x86:
runs-on: [ubuntu-latest]
outputs:
pkgfile: ${{ steps.pkgname.outputs.pkgfile }}
steps:
- name: Check out repo
uses: actions/checkout@v2
- name: Install dependencies
run: |
sudo apt update -qq
sudo apt install -yqq libguestfs-tools qemu-utils qemu-system-x86 ovmf qemu-block-extra qemu-user-static binfmt-support rsync sudo wget xz-utils pigz mount dosfstools libarchive-tools
- name: Build firmware
run: |
./build_x86.sh
- name: Release build artifacts
uses: softprops/action-gh-release@v1
if: startsWith(github.ref, 'refs/tags/')
with:
append_body: true
body_path: ./version-info
files: |
./anotterkiosk-*
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
raspberrypi:
runs-on: [self-hosted]
@ -59,7 +30,6 @@ jobs:
- name: Release build artifacts
uses: softprops/action-gh-release@v1
if: startsWith(github.ref, 'refs/tags/')
with:
append_body: true
body_path: ./version-info

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@ -1,13 +1,23 @@
AnotterKiosk
=============================
N-AnotterKiosk (Not-AnotterKiosk)
=================================
### I have hacked this about alot from the main branch, mainly Raspberry Pi changes
- Removed x86 support
- Added scheduled screen on/off
- Added scheduled chrome page refresh
- Rpi3 Overclock settings
- Disabled KMS driver for HW screen rotation (screen rotated portrait by default)
### Overview
Another kiosk browser OS? Yes, this one is a little bit opinionated :)
The author ran several similar setups in production for years and has seen a lot of problems and strange failure modes.
This project aims to solve a lot of those (at least for the author), it might also be useful for others :)
Another kiosk browser OS? Yes, this one is a little bit opinionated :)
The author ran several similar setups in production for years and has seen a lot of problems and strange failure modes.
This project aims to solve a lot of those (at least for the author), it might also be useful for others :)
#### Key features
- [Images built via CI](https://github.com/Manawyrm/AnotterKiosk/blob/main/.github/workflows/main.yml)
- WiFi connection support
- Raspberry Pi (Arm64) compatibility
@ -22,39 +32,46 @@ This project aims to solve a lot of those (at least for the author), it might al
- SSH support
- VNC support
- SSH tunneling support (for remote-access without port-forwarding, etc.)
- Basic API for Rpi Actions
#### Planned features:
- Raspberry Pi PXE/network boot support
- Network connectivity watchdog (configurable ping, etc. timeout)
- Automatic reboot at specified time
#### Security considerations:
- Autossh does not check SSH host keys. This is okay-ish as long as the target server only allows tunneling, nothing else.
- nginx/PHP are allowed to use sudo/NOPASSWD (because it needs to query the VideoCore, manage service, etc.), more priviledge seperation would be nice
- due to the skeleton mechanism, the system has some ... creative permissions. some cleanup required.
### How-To Use
Like any other Raspberry Pi image: download the current .img file from the [Releases](https://github.com/Manawyrm/AnotterKiosk/releases) page and flash it to a storage device of your choice.
SD cards, USB flash drives, USB SSDs, SATA SSDs, NVMe SSDs are all good options.
You can use a tool like the [Raspberry Pi Imager](https://www.raspberrypi.com/software/), [BalenaEtcher](https://etcher.balena.io/), [Win32DiskImager](https://sourceforge.net/projects/win32diskimager/) or plain "dd" on \*nix-like systems.
When using the latter two, make sure to extract the .gz compression first (using a tool like 7zip).
After flashing, re-plug the storage device and open the FAT32 partition.
Open the [`kioskbrowser.ini`](https://github.com/Manawyrm/AnotterKiosk/blob/main/kiosk_skeleton/boot/kioskbrowser.ini) file in a text editor and change everything to your needs.
More complex WiFi setups (like WPA2-Enterprise) can be configured by creating a wpa_supplicant.conf.
Adding your own SSH keys can be done by creating a authorized_keys file.
Like any other Raspberry Pi image: download the current .img file from the [Releases](https://github.com/Manawyrm/AnotterKiosk/releases) page and flash it to a storage device of your choice.
SD cards, USB flash drives, USB SSDs, SATA SSDs, NVMe SSDs are all good options.
You can use a tool like the [Raspberry Pi Imager](https://www.raspberrypi.com/software/), [BalenaEtcher](https://etcher.balena.io/), [Win32DiskImager](https://sourceforge.net/projects/win32diskimager/) or plain "dd" on \*nix-like systems.
When using the latter two, make sure to extract the .gz compression first (using a tool like 7zip).
After flashing, re-plug the storage device and open the FAT32 partition.
Open the [`kioskbrowser.ini`](https://github.com/Manawyrm/AnotterKiosk/blob/main/kiosk_skeleton/boot/kioskbrowser.ini) file in a text editor and change everything to your needs.
More complex WiFi setups (like WPA2-Enterprise) can be configured by creating a wpa_supplicant.conf.
Adding your own SSH keys can be done by creating a authorized_keys file.
If you want to use the autossh tunneling features, copy an SSH private key as either "id_rsa" or "id_ed25519".
### HTTP watchdog functionality
Browsers are complex, networks are unstable and software can be buggy.
Browsers are complex, networks are unstable and software can be buggy.
In order to get the highest reliability possible, self-hosted websites can be modified to include a heartbeat/watchdog functionality.
This works by requesting a certain http-endpoint from the website at some interval.
This works by requesting a certain http-endpoint from the website at some interval.
If your page is being reloaded often (like with a <meta refresh=-header), you can just load the heartbeat-URL as an image:
```html
<img src="http://localhost/heartbeat.php" style="display: none;">
```
If your page stays on one page for a long time (or is just a single-page application), you might want to use AJAX requests to send a heartbeat:
```html
<script>
const req = new XMLHttpRequest();
@ -67,6 +84,46 @@ setInterval(function() {
Whenever the heartbeat stops (for whatever reason), the device will first restart the X11 environment (browser, window manager, etc.) and later (if it hasn't recovered) the whole system by rebooting.
### API
Lightweight HTTP API for controlling and monitoring a Raspberry Pi-based kiosk system. It exposes several endpoints that allow you to query system status, control the display, refresh the screen, and reboot the device — all protected by an API key.
API key will be loaded from `/boot/kioskbrowser.ini`
```ini
[api]
key = "My Key"
```
#### Endpoints
All requests must include a key query parameter matching the API key from the INI file.
`GET /script.php?action=status&key=YOUR_API_KEY`
Returns system status:
```json
{
"temperature": "temp=48.0'C",
"voltage": "volt=1.2000V",
"throttled": "throttled=0x0",
"heartbeat": "2025-06-09 14:33:12"
}
```
`GET /script.php?action=screen_off&key=YOUR_API_KEY`
Turns off the screen.
`GET /script.php?action=screen_on&key=YOUR_API_KEY`
Turns on the screen.
`GET /script.php?action=screen_refresh&key=YOUR_API_KEY`
Starts the screen-refresh.service to refresh the screen.
`GET /script.php?action=reboot&key=YOUR_API_KEY`
Reboots the Raspberry Pi.
### Inspiration / Other Kiosk-OSes:
- https://github.com/jareware/chilipie-kiosk/
- https://github.com/guysoft/FullPageOS
- https://github.com/guysoft/FullPageOS

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@ -7,10 +7,10 @@ SCRIPT_DIR="$(dirname "$(realpath "$0")")"
BUILD_DIR="${SCRIPT_DIR}/work/root/"
# cleanup any previous build attempts
umount -fl "${BUILD_DIR}" || true
losetup -D /dev/loop0 || true
rm -rf "${BUILD_DIR}" || true
mkdir -p "${BUILD_DIR}"
sudo umount -fl "${BUILD_DIR}" || true
sudo losetup -D /dev/loop0 || true
sudo rm -rf "${BUILD_DIR}" || true
sudo mkdir -p "${BUILD_DIR}"
# download a modern RaspiOS build
if [ ! -f raspios.img.xz ]
@ -51,7 +51,7 @@ sed -i 's/vfat defaults/vfat ro,defaults/g' "${BUILD_DIR}/etc/fstab"
sed -i 's/ext4 defaults/ext4 ro,defaults/g' "${BUILD_DIR}/etc/fstab"
# Include git repo version info
echo -n "AnotterKiosk Raspberry Pi version: " > "${BUILD_DIR}/version-info"
echo -n "N-AnotterKiosk Raspberry Pi version: " > "${BUILD_DIR}/version-info"
git describe --abbrev=4 --dirty --always --tags >> "${BUILD_DIR}/version-info"
# Mount system partitions (from the build host)
@ -84,5 +84,5 @@ sudo umount "${BUILD_DIR}"
sudo losetup -D /dev/loop0
tag=$(git describe --abbrev=4 --dirty --always --tags)
mv raspikiosk.img anotterkiosk-${tag}-arm64-raspberrypi.img
pigz -4 anotterkiosk-${tag}-arm64-raspberrypi.img
mv raspikiosk.img n-anotterkiosk-${tag}-arm64-raspberrypi.img
pigz -4 n-anotterkiosk-${tag}-arm64-raspberrypi.img

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@ -20,6 +20,10 @@ reboot_time = 04:00
; configure chrome to refresh the page every x minutes
;refresh_screen_every_x_min=15
[api]
; apikey to be sent with commands to /api.php
key = "MyKey"
[wifi]
; If you need more complex WiFi settings (like WPA2-Enterprise, hidden SSIDs, etc.)
; create a file called wpa_supplicant.conf on this partition.

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@ -80,7 +80,7 @@ systemctl enable nginx
systemctl enable ssh
systemctl enable kiosk-sechedule-screen.service
systemctl enable schedule-reboot.service
systemctl enable screen-refresh.service
systemctl enable setup-refresh-timer.service
# generate a version info/build info file

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@ -1,10 +0,0 @@
[Unit]
Description=Refresh Screen
After=graphical.target
[Service]
Type=oneshot
User=pi
Environment=DISPLAY=:0
Environment=XAUTHORITY=/home/pi/.Xauthority
ExecStart=/usr/bin/refresh-screen

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@ -0,0 +1,11 @@
[Unit]
Description=Initial screen refresh timer setup
After=network.target
[Service]
Type=oneshot
ExecStart=/usr/bin/setup-refresh-timer
RemainAfterExit=true
[Install]
WantedBy=multi-user.target

0
kiosk_skeleton/usr/bin/refresh-screen Normal file → Executable file
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@ -1,6 +1,16 @@
#!/bin/bash
INI_FILE="/boot/kioskbrowser.ini"
remount_root() {
local mode=$1
echo "Remounting root filesystem as $mode..."
mount -o remount,"$mode" / || {
echo "Failed to remount root as $mode"
exit 1
}
}
REBOOT_ENABLED=$(awk -F '=' '/^\[reboot\]/ { in_reboot=1; next }
in_reboot && /^\[/ { in_reboot=0 }
in_reboot && $1 ~ /enabled/ { gsub(/ /, "", $2); print $2 }' "$INI_FILE")
@ -12,6 +22,8 @@ REBOOT_TIME=$(awk -F '=' '/^\[reboot\]/ { in_reboot=1; next }
if [[ "$REBOOT_ENABLED" -eq 1 ]] && [[ "$REBOOT_TIME" =~ ^[0-2][0-9]:[0-5][0-9]$ ]]; then
echo "Scheduling reboot for $REBOOT_TIME..."
remount_root rw
TARGET_TIME=$(date -d "$REBOOT_TIME" +%s)
NOW=$(date +%s)
@ -34,7 +46,6 @@ Persistent=false
WantedBy=timers.target
EOF
# Create the associated service
cat <<EOF > /etc/systemd/system/reboot-at.service
[Unit]
Description=Scheduled Reboot
@ -46,6 +57,8 @@ EOF
systemctl daemon-reload
systemctl enable --now reboot-at.timer
remount_root ro
else
echo "Reboot not scheduled (disabled or invalid time)"
fi

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@ -3,6 +3,18 @@
INI_FILE="/boot/kioskbrowser.ini"
SYSTEMD_DIR="/etc/systemd/system"
# Function to safely remount root FS
remount_root() {
local mode=$1
echo "Remounting root filesystem as $mode..."
mount -o remount,"$mode" / || {
echo "Failed to remount root as $mode"
exit 1
}
}
get_ini_value() {
local section=$1 key=$2
awk -F '=' -v sec="$section" -v k="$key" '
@ -17,6 +29,17 @@ get_ini_value() {
create_recurring_timer() {
local action=$1
local time=$2
local value
if [[ "$action" == "on" ]]; then
value=1
elif [[ "$action" == "off" ]]; then
value=0
else
echo "Invalid action: $action"
return 1
fi
local name="screen-${action}"
echo "Setting daily screen ${action} at ${time}"
@ -39,9 +62,7 @@ Description=Turn screen ${action}
[Service]
Type=oneshot
Environment=DISPLAY=:0
ExecStart=/usr/bin/xset dpms force ${action}
Environment=XAUTHORITY=/home/pi/.Xauthority
ExecStart=/usr/bin/vcgencmd display_power ${value}
User=pi
EOF
@ -49,6 +70,7 @@ EOF
systemctl enable --now "${name}.timer"
}
cleanup_screen_timers() {
for action in on off; do
systemctl disable --now screen-${action}.timer 2>/dev/null
@ -57,6 +79,8 @@ cleanup_screen_timers() {
systemctl daemon-reload
}
remount_root rw
# === MAIN ===
SCREEN_ON=$(get_ini_value screen screen_on_time)
SCREEN_OFF=$(get_ini_value screen screen_off_time)
@ -65,3 +89,5 @@ cleanup_screen_timers
[[ "$SCREEN_ON" =~ ^[0-2][0-9]:[0-5][0-9]$ ]] && create_recurring_timer on "$SCREEN_ON"
[[ "$SCREEN_OFF" =~ ^[0-2][0-9]:[0-5][0-9]$ ]] && create_recurring_timer off "$SCREEN_OFF"
remount_root ro

4
kiosk_skeleton/usr/bin/setup-refresh-timer Normal file → Executable file
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@ -29,9 +29,13 @@ if [[ "$REFRESH_INTERVAL" =~ ^[0-9]+$ ]] && (( REFRESH_INTERVAL > 0 )); then
cat <<EOF | tee "$SERVICE_UNIT" > /dev/null
[Unit]
Description=Refresh Screen
After=graphical.target
[Service]
Type=oneshot
User=pi
Environment=DISPLAY=:0
Environment=XAUTHORITY=/home/pi/.Xauthority
ExecStart=/usr/bin/refresh-screen
EOF

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@ -0,0 +1,60 @@
<?php
header('Content-Type: application/json');
// Load API key from INI file
$iniFile = '/boot/kioskbrowser.ini';
if (!file_exists($iniFile)) {
http_response_code(500);
echo json_encode(["error" => "INI file not found"]);
exit;
}
$config = parse_ini_file($iniFile, true);
$API_KEY = trim($config['api']['key'], "\"'"); // Remove any surrounding quotes
// API key check
if (!isset($_GET['key']) || $_GET['key'] !== $API_KEY) {
http_response_code(403);
echo json_encode(["error" => "Forbidden"]);
exit;
}
// Get action
$action = $_GET['action'] ?? '';
switch ($action) {
case 'status':
echo json_encode([
'temperature' => trim(shell_exec("sudo vcgencmd measure_temp")),
'voltage' => trim(shell_exec("sudo vcgencmd measure_volts")),
'throttled' => trim(shell_exec("sudo vcgencmd get_throttled")),
'heartbeat' => date("Y-m-d H:i:s", filemtime("/dev/shm/heartbeat")),
]);
break;
case 'screen_off':
shell_exec("sudo vcgencmd display_power 0");
echo json_encode(["message" => "Screen turned off"]);
break;
case 'screen_on':
shell_exec("sudo vcgencmd display_power 1");
echo json_encode(["message" => "Screen turned on"]);
break;
case 'screen_refresh':
shell_exec("sudo systemctl start screen-refresh.service");
echo json_encode(["message" => "Screen refreshed"]);
break;
case 'reboot':
shell_exec("sudo reboot");
echo json_encode(["message" => "Rebooting"]);
break;
default:
http_response_code(400);
echo json_encode(["error" => "Invalid action"]);
break;
}
?>