From 2f504e7063d382b99077bc9cb386b57df4e652a9 Mon Sep 17 00:00:00 2001
From: Lai Wei <lai.wei@enovation.ie>
Date: Tue, 4 Feb 2025 10:04:17 +0000
Subject: [PATCH] Move debug backtrace of auth_oidc error details from Moodle
 log to PHP error log

---
 auth/oidc/classes/utils.php | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/auth/oidc/classes/utils.php b/auth/oidc/classes/utils.php
index ce0414042..7b44593a4 100644
--- a/auth/oidc/classes/utils.php
+++ b/auth/oidc/classes/utils.php
@@ -118,17 +118,26 @@ public static function tostring($val) {
     public static function debug($message, $where = '', $debugdata = null) {
         $debugmode = (bool)get_config('auth_oidc', 'debugmode');
         if ($debugmode === true) {
-            $backtrace = debug_backtrace();
+            $debugbacktrace = debug_backtrace();
+            $debugbacktracechecksum = md5(json_encode($debugbacktrace));
+
             $otherdata = static::make_json_safe([
                 'other' => [
                     'message' => $message,
                     'where' => $where,
                     'debugdata' => $debugdata,
-                    'backtrace' => $backtrace,
+                    'backtrace_checksum' => $debugbacktracechecksum,
                 ],
             ]);
             $event = action_failed::create($otherdata);
             $event->trigger();
+
+            $debugbacktracedata = [
+                'checksum' => $debugbacktracechecksum,
+                'backtrace' => $debugbacktrace,
+            ];
+
+            debugging(json_encode($debugbacktracedata), DEBUG_DEVELOPER);
         }
     }