Files
xamxam/public/admin/README.md
Théophile Gervreau-Mercier 8613f71112 security: add PHP session auth guard for admin panel (item #2, CRITICAL)
- lib/AdminAuth.php: new class with requireLogin(), login(), logout(),
  isAuthenticated(); starts session with hardened cookie params
  (HttpOnly, SameSite=Strict, Secure, Path=/admin) — also resolves
  item #8 (session cookie hardening)
- requireLogin() auto-authenticates from nginx Basic Auth credentials
  ($_SERVER['PHP_AUTH_PW']) so the user only sees one browser prompt;
  falls back to /admin/login.php if the proxy is absent/misconfigured
- config/admin_credentials.php: gitignored credential store; define
  ADMIN_PASSWORD_HASH with a bcrypt hash to enable PHP auth
- config/admin_credentials.example.php: template for the above
- config/bootstrap.php: auto-loads admin_credentials.php if present
- .gitignore: exclude config/admin_credentials.php
- public/admin/login.php: fallback login form (shown only when nginx
  Basic Auth is bypassed / proxy absent)
- public/admin/logout.php: session destruction + redirect to login
- All 7 admin PHP files: replace session_start() with
  AdminAuth::requireLogin() (defence-in-depth behind nginx Basic Auth)
- public/admin/inc/head.php: Déconnexion button when ADMIN_PASSWORD_HASH
  is defined
- nginx/PHP_AUTH_LAYER.md: documents dual-auth architecture, UX flow,
  and setup instructions
- docs/TODO.SECURITY.md: items #2 and #8 moved to Resolved; priority
  order updated (all CRITICAL done)
2026-02-08 14:22:45 +01:00

4.3 KiB

Admin Panel Structure

This directory contains the admin panel for managing Post-ERG thesis database.

Directory Structure

public/admin/
├── index.php          # List all theses (main page)
├── add.php            # Add new thesis form
├── edit.php           # Edit existing thesis form
├── import.php         # CSV import form
├── thanks.php         # Thank you page after submission
├── actions/           # Backend processing scripts (no HTML output)
│   ├── formulaire.php # Process thesis submission from add.php
│   └── publish.php    # Toggle publish/unpublish status
├── inc/               # Shared templates
│   ├── head.php       # HTML head, CSS, navigation
│   └── footer.php     # HTML footer
└── data/              # Upload directory (not in git)
    ├── theses/        # PDF files
    └── covers/        # Cover images

File Types

User-Facing Templates (Root Directory)

Files that display HTML to users:

  • index.php - Lists all theses with filters and bulk actions
  • add.php - Form to add a new thesis
  • edit.php - Form to edit an existing thesis
  • import.php - CSV import interface
  • thanks.php - Success confirmation page

Backend Scripts (actions/)

Files that process forms and redirect (no HTML output):

  • formulaire.php - Processes thesis submission from add.php
  • publish.php - Handles publish/unpublish actions

Shared Templates (inc/)

Reusable HTML components:

  • head.php - HTML head, CSS links, navigation menu
  • footer.php - HTML footer

Workflow

Adding a Thesis

  1. User visits add.php (displays form)
  2. User submits form to actions/formulaire.php (processes data)
  3. On success, redirects to thanks.php?id=123
  4. On error, redirects back to add.php with error message

Publishing/Unpublishing

  1. User clicks publish/unpublish button in index.php
  2. Form submits to actions/publish.php (processes action)
  3. Redirects back to index.php with success/error message

Security

  • All pages require HTTP Basic Auth (configured in nginx) — primary layer
  • All pages require PHP session auth (AdminAuth::requireLogin()) — defence-in-depth
  • CSRF tokens protect all forms
  • File uploads validated and sanitized
  • Database queries use prepared statements
  • Upload directory outside public/ in production

See nginx/PHP_AUTH_LAYER.md for details on the dual-auth architecture.

Templates

The inc/ folder contains shared templates:

  • head.php - Included at the top of each page (DOCTYPE, CSS, nav)
  • footer.php - Included at the bottom of each page (closing tags)

Usage:

<?php include "inc/head.php" ?>
<!-- Page content here -->
<?php include "inc/footer.php" ?>

URL Structure

  • /admin/ - List theses (index.php)
  • /admin/add.php - Add new thesis
  • /admin/edit.php?id=123 - Edit thesis #123
  • /admin/import.php - Import CSV
  • /admin/thanks.php?id=123 - Thank you page

Backend actions (not directly accessed):

  • /admin/actions/formulaire.php - Form processor
  • /admin/actions/publish.php - Publish toggle

Development

Adding a New Page

  1. Create the template in /admin/yourpage.php:
<?php
require_once __DIR__ . "/../../config/bootstrap.php";
require_once __DIR__ . '/../../lib/AdminAuth.php';
AdminAuth::requireLogin();
$pageTitle = "Your Page Title";
?>
<?php include "inc/head.php" ?>

<!-- Your content here -->

<?php include "inc/footer.php" ?>
  1. Add navigation link in inc/head.php if needed

Adding a New Action

  1. Create the script in /admin/actions/youraction.php:
<?php
require_once __DIR__ . "/../../config/bootstrap.php";
require_once __DIR__ . '/../../lib/AdminAuth.php';
AdminAuth::requireLogin();

// Verify CSRF token
if (!hash_equals($_SESSION['csrf_token'], $_POST['csrf_token'])) {
    $_SESSION['error'] = "Security error";
    header('Location: ../index.php');
    exit;
}

// Process action...

// Redirect
header('Location: ../yourpage.php');
exit;
  1. Create form in template that posts to actions/youraction.php

Notes

  • Bootstrap path from actions/: __DIR__ . "/../../config/bootstrap.php"
  • Redirects from actions/: use ../ prefix (e.g., ../index.php)
  • Database class: require_once __DIR__ . '/../../lib/Database.php'
  • All forms must include CSRF token from $_SESSION['csrf_token']