From 61bf838108dd18a7cb1e35a4b9df526177193f0c Mon Sep 17 00:00:00 2001
From: stephan <stephan@progiweb.ca>
Date: Mon, 29 Jun 2026 09:46:05 -0400
Subject: [PATCH] Implement error handling and JSON response for
 ajax_inscr_gestion.php

This commit enhances the error handling in the `ajax_inscr_gestion.php` file by introducing a shutdown function that captures fatal errors and returns a structured JSON response instead of a generic 500 error. Additionally, it adds diagnostic information for invalid actions, improving the debugging process. These changes aim to provide clearer feedback to users and developers when issues arise during AJAX requests.
---
 ajax_inscr_gestion.php | 52 +++++++++++++++++++++++++++++++++++++++---
 1 file changed, 49 insertions(+), 3 deletions(-)

diff --git a/ajax_inscr_gestion.php b/ajax_inscr_gestion.php
index 38311c3..852523c 100644
--- a/ajax_inscr_gestion.php
+++ b/ajax_inscr_gestion.php
@@ -5,12 +5,30 @@
  */
 session_start();
 
+header('Content-Type: application/json; charset=utf-8');
+
+// Filet de securite : transforme tout fatal (include manquant, fonction
+// indefinie, parse error...) en reponse JSON exploitable au lieu d'un 500 muet.
+$GLOBALS['__inscr_gestion_done'] = false;
+register_shutdown_function(function () {
+    if (!empty($GLOBALS['__inscr_gestion_done'])) {
+        return;
+    }
+    $err = error_get_last();
+    $strDetail = ($err && in_array($err['type'], array(E_ERROR, E_PARSE, E_CORE_ERROR, E_COMPILE_ERROR), true))
+        ? ($err['message'] . ' @ ' . $err['file'] . ':' . $err['line'])
+        : 'fatal inconnu';
+    error_log('[ajax_inscr_gestion] ' . $strDetail);
+    if (!headers_sent()) {
+        http_response_code(200);
+    }
+    echo json_encode(array('state' => 'error', 'message' => 'fatal', 'detail' => $strDetail));
+});
+
 require_once 'php/inc_fonctions.php';
 require_once 'php/inc_fx_promoteur.php';
 require_once 'php/inc_fx_inscriptions_gestion.php';
 
-header('Content-Type: application/json; charset=utf-8');
-
 $intComId = intval($_SESSION['com_id'] ?? 0);
 $strAction = trim((string)($_REQUEST['a'] ?? ''));
 $strLangue = trim((string)($_REQUEST['lang'] ?? 'fr'));
@@ -19,12 +37,14 @@ if ($strLangue === '') {
 }
 
 if ($intComId <= 0) {
+    $GLOBALS['__inscr_gestion_done'] = true;
     echo json_encode(array('state' => 'error', 'message' => 'session'));
     exit;
 }
 
 $tabRetour = array('state' => 'error');
 
+try {
 switch ($strAction) {
     case 'par_statut_course':
         $intParId = intval($_REQUEST['par_id'] ?? 0);
@@ -110,8 +130,34 @@ switch ($strAction) {
         break;
 
     default:
-        $tabRetour = array('state' => 'error', 'message' => 'invalid_action');
+        // DIAGNOSTIC TEMPORAIRE : expose ce que le serveur a reellement recu
+        // pour comprendre pourquoi l'action ne matche aucun case.
+        $tabRetour = array(
+            'state'   => 'error',
+            'message' => 'invalid_action',
+            'debug'   => array(
+                'a_recu'        => $strAction,
+                'a_len'         => strlen($strAction),
+                'request_keys'  => array_keys($_REQUEST),
+                'post_keys'     => array_keys($_POST),
+                'get_keys'      => array_keys($_GET),
+                'method'        => $_SERVER['REQUEST_METHOD'] ?? '',
+                'content_type'  => $_SERVER['CONTENT_TYPE'] ?? '',
+            ),
+        );
+        error_log('[ajax_inscr_gestion] invalid_action a=' . json_encode($strAction)
+            . ' REQUEST_keys=' . json_encode(array_keys($_REQUEST))
+            . ' POST_keys=' . json_encode(array_keys($_POST)));
         break;
 }
+} catch (\Throwable $e) {
+    error_log('[ajax_inscr_gestion] ' . $e->getMessage() . ' @ ' . $e->getFile() . ':' . $e->getLine());
+    $tabRetour = array(
+        'state' => 'error',
+        'message' => 'exception',
+        'detail' => $e->getMessage() . ' @ ' . $e->getFile() . ':' . $e->getLine(),
+    );
+}
 
+$GLOBALS['__inscr_gestion_done'] = true;
 echo json_encode($tabRetour);