Override Symfony's logger with GLPI's one

dependency_injection/services.php

@@ -37,6 +37,7 @@
 use Glpi\DependencyInjection\PublicService;
 use Glpi\Http\Firewall;
 use Glpi\Http\FirewallInterface;
+use Glpi\Log\LegacyGlobalLogger;
 
 return static function (ContainerConfigurator $container): void {
     $projectDir = dirname(__DIR__);
@@ -65,6 +66,13 @@
         ->lazy()
     ;
 
+    /**
+     * Override Symfony's logger.
+     * @see \Symfony\Component\HttpKernel\DependencyInjection\LoggerPass
+     */
+    $services->set('logger', LegacyGlobalLogger::class);
+
+    // Development-only
     if ($container->env() === 'development') {
         $container->extension('web_profiler', [
             'toolbar' => true,

src/Glpi/Log/LegacyGlobalLogger.php

@@ -0,0 +1,96 @@
+<?php
+
+/**
+ * ---------------------------------------------------------------------
+ *
+ * GLPI - Gestionnaire Libre de Parc Informatique
+ *
+ * http://glpi-project.org
+ *
+ * @copyright 2015-2024 Teclib' and contributors.
+ * @licence   https://www.gnu.org/licenses/gpl-3.0.html
+ *
+ * ---------------------------------------------------------------------
+ *
+ * LICENSE
+ *
+ * This file is part of GLPI.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * ---------------------------------------------------------------------
+ */
+
+namespace Glpi\Log;
+
+use Psr\Log\LoggerInterface;
+use Psr\Log\NullLogger;
+
+class LegacyGlobalLogger implements LoggerInterface
+{
+    private function getLogger(): LoggerInterface
+    {
+        /**
+         * @var null|\Psr\Log\LoggerInterface $PHPLOGGER
+         */
+        global $PHPLOGGER;
+
+        return $PHPLOGGER ?? new NullLogger();
+    }
+
+    public function emergency(\Stringable|string $message, array $context = []): void
+    {
+        $this->getLogger()->emergency($message, $context);
+    }
+
+    public function alert(\Stringable|string $message, array $context = []): void
+    {
+        $this->getLogger()->alert($message, $context);
+    }
+
+    public function critical(\Stringable|string $message, array $context = []): void
+    {
+        $this->getLogger()->critical($message, $context);
+    }
+
+    public function error(\Stringable|string $message, array $context = []): void
+    {
+        $this->getLogger()->error($message, $context);
+    }
+
+    public function warning(\Stringable|string $message, array $context = []): void
+    {
+        $this->getLogger()->warning($message, $context);
+    }
+
+    public function notice(\Stringable|string $message, array $context = []): void
+    {
+        $this->getLogger()->notice($message, $context);
+    }
+
+    public function info(\Stringable|string $message, array $context = []): void
+    {
+        $this->getLogger()->info($message, $context);
+    }
+
+    public function debug(\Stringable|string $message, array $context = []): void
+    {
+        // Debug is disabled for now because Symfony generates a lot of debug logs that GLPI doesn't need yet.
+    }
+
+    public function log($level, \Stringable|string $message, array $context = []): void
+    {
+        $this->getLogger()->log($level, $message, $context);
+    }
+}