feat(audit) : ajoute UserAgentParser (libellé appareil lisible)

2026-06-24 10:10:58 +02:00
parent 025ce8a367
commit 3939ea75e5
2 changed files with 148 additions and 0 deletions
@@ -0,0 +1,73 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Service;
+
+/**
+ * Derives a short, human-readable label ("Type · OS · Browser") from a raw
+ * User-Agent string, used to add forensic context to audit log entries.
+ * Heuristic on purpose — enough to tell a phone from a desktop and identify
+ * OS/browser families on shared accounts.
+ */
+class UserAgentParser
+{
+    public function parse(?string $userAgent): ?string
+    {
+        if (null === $userAgent) {
+            return null;
+        }
+
+        $ua = trim($userAgent);
+        if ('' === $ua) {
+            return null;
+        }
+
+        return implode(' · ', [
+            $this->detectType($ua),
+            $this->detectOs($ua),
+            $this->detectBrowser($ua),
+        ]);
+    }
+
+    private function detectType(string $ua): string
+    {
+        if (1 === preg_match('/iPad|Tablet/i', $ua)) {
+            return 'Tablette';
+        }
+
+        if (1 === preg_match('/Mobile|Android|iPhone|iPod/i', $ua)) {
+            return 'Mobile';
+        }
+
+        return 'Ordinateur';
+    }
+
+    private function detectOs(string $ua): string
+    {
+        // Order matters: iOS before macOS (iOS UAs contain "Mac OS X"),
+        // Android before Linux (Android UAs contain "Linux").
+        return match (true) {
+            1 === preg_match('/iPhone|iPad|iPod/i', $ua)   => 'iOS',
+            1 === preg_match('/Android/i', $ua)            => 'Android',
+            1 === preg_match('/Windows/i', $ua)            => 'Windows',
+            1 === preg_match('/Mac OS X|Macintosh/i', $ua) => 'macOS',
+            1 === preg_match('/Linux/i', $ua)              => 'Linux',
+            default                                        => 'Autre',
+        };
+    }
+
+    private function detectBrowser(string $ua): string
+    {
+        // Order matters: Edge/Opera contain "Chrome" and "Safari";
+        // Chrome contains "Safari". Match the most specific first.
+        return match (true) {
+            1 === preg_match('/Edg/i', $ua)           => 'Edge',
+            1 === preg_match('/OPR|Opera/i', $ua)     => 'Opera',
+            1 === preg_match('/Firefox|FxiOS/i', $ua) => 'Firefox',
+            1 === preg_match('/Chrome|CriOS/i', $ua)  => 'Chrome',
+            1 === preg_match('/Safari/i', $ua)        => 'Safari',
+            default                                   => 'Autre',
+        };
+    }
+}