feat: use getID3 for audio upload validation

app/Http/Requests/API/UploadRequest.php

@@ -3,6 +3,7 @@
 namespace App\Http\Requests\API;
 
 use App\Http\Requests\Request;
+use App\Rules\SupportedAudioFile;
 use Illuminate\Http\UploadedFile;
 
 /** @property UploadedFile $file */
@@ -12,11 +13,7 @@ class UploadRequest extends Request
     public function rules(): array
     {
         return [
-            'file' => [
+            'file' => ['required', 'file', new SupportedAudioFile()],
-                'required',
-                'file',
-                'mimes:mp3,mpga,aac,flac,ogg,oga,opus',
-            ],
         ];
     }
 }

app/Rules/SupportedAudioFile.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace App\Rules;
+
+use getID3;
+use Illuminate\Contracts\Validation\Rule;
+use Illuminate\Http\UploadedFile;
+use Illuminate\Support\Arr;
+use Throwable;
+use Webmozart\Assert\Assert;
+
+class SupportedAudioFile implements Rule
+{
+    private const SUPPORTED_FORMATS = ['mp3', 'aac', 'ogg', 'flac', 'wav'];
+
+    /** @param UploadedFile $value */
+    public function passes($attribute, $value): bool
+    {
+        try {
+            Assert::oneOf(
+                Arr::get((new getID3())->analyze($value->getRealPath()), 'fileformat'),
+                self::SUPPORTED_FORMATS
+            );
+
+            return true;
+        } catch (Throwable) {
+            return false;
+        }
+    }
+
+    public function message(): string
+    {
+        return 'Unsupported audio file';
+    }
+}

app/Services/MediaSyncService.php

@@ -79,7 +79,7 @@ class MediaSyncService
                 ->ignoreDotFiles((bool) config('koel.ignore_dot_files')) // https://github.com/koel/koel/issues/450
                 ->files()
                 ->followLinks()
-                ->name('/\.(mp3|ogg|m4a|flac)$/i')
+                ->name('/\.(mp3|wav|ogg|m4a|flac)$/i')
                 ->in($path)
         );
     }