Adds a third account type 'user' alongside super/admin: no create/edit/delete
rights on qr codes, view access to dynamic/static lists gated per-account by
two admin-controlled toggles (can_view_static, can_view_dynamic), and always
full visibility into the dashboard/reports regardless of those toggles.
- New columns can_view_static/can_view_dynamic on users (migrations/003)
- Users class + form_users.php: 'user' type option with the two toggles
- Access control: dynamic_qrcode.php/static_qrcode.php/bulk_action.php reject
all mutations for type=user; dynamic_qrcodes.php/static_qrcodes.php enforce
the view toggle and show all codes (no owner scoping, since 'user' owns none)
- Sidebar and list tables hide add/edit/delete/bulk UI for the read-only role
- index.php dashboard stats are unscoped for both 'super' and 'user'
Fixes critical pre-existing issues found during review: bulk_action.php had no
auth check at all (unauthenticated download/delete of any qrcode) and built a
table name from unwhitelisted user input (SQL injection); the QR generator
classes wrote files from unvalidated filename/format, allowing path traversal
and arbitrary file writes. Also pins chillerlan/php-qrcode to 5.0.5 since
master now requires PHP 8.4, breaking the PHP 8.3 build.
- CSRF tokens on all POST forms and the bulk_action.php JSON endpoint
- Login rate limiting (5 attempts / 15 min) via new login_attempts table
- Hardened sessions: httponly/samesite cookies, 30 min idle timeout,
session regeneration on login
- Forced password change for the default superadmin/superadmin account
- Server-side validation in Users/DynamicQrcode/Qrcode classes
- Audit log table for auth, user, and qrcode actions
- Checked-in db schema (db/init.sql, migrations/) instead of relying on an
opaque prebuilt db image
- Production docker-compose with Nginx + php-fpm instead of the PHP dev server
### Problem
The usage of `FILTER_SANITIZE_STRING` in `read.php` causes a deprecation warning in PHP 8.1 and breaks functionality entirely in PHP 8.3, as the constant was removed.
### Solution
This commit replaces:
```php
filter_input(INPUT_GET, 'id', FILTER_SANITIZE_STRING);
with a safer and future-proof alternative:
$id = filter_input(INPUT_GET, 'id', FILTER_UNSAFE_RAW);
$id = trim(strip_tags($id));
> _Thanks for maintaining this project! Happy to contribute._ 😊
dillard
CLAlberto