Fix handling of upload IDs on backups

app/Http/Controllers/Api/Remote/Backups/BackupRemoteUploadController.php

@@ -10,6 +10,7 @@ use League\Flysystem\AwsS3v3\AwsS3Adapter;
 use Pterodactyl\Http\Controllers\Controller;
 use Pterodactyl\Extensions\Backups\BackupManager;
 use Pterodactyl\Repositories\Eloquent\BackupRepository;
+use Symfony\Component\HttpKernel\Exception\ConflictHttpException;
 use Symfony\Component\HttpKernel\Exception\BadRequestHttpException;
 
 class BackupRemoteUploadController extends Controller
@@ -64,7 +65,7 @@ class BackupRemoteUploadController extends Controller
         // Prevent backups that have already been completed from trying to
         // be uploaded again.
         if (! is_null($backup->completed_at)) {
-            return new JsonResponse([], JsonResponse::HTTP_CONFLICT);
+            throw new ConflictHttpException('This backup is already in a completed state.');
         }
 
         // Ensure we are using the S3 adapter.
@@ -103,9 +104,7 @@ class BackupRemoteUploadController extends Controller
         }
 
         // Set the upload_id on the backup in the database.
-        $backup->forceFill([
-            'upload_id' => $params['UploadId'],
-        ])->saveOrFail();
+        $backup->update(['upload_id' => $params['UploadId']]);
 
         return new JsonResponse([
             'parts' => $parts,

app/Models/Backup.php

@@ -68,6 +68,11 @@ class Backup extends Model
         'upload_id' => null,
     ];
 
+    /**
+     * @var string[]
+     */
+    protected $guarded = ['id', 'created_at', 'updated_at', 'deleted_at'];
+
     /**
      * @var array
      */
@@ -80,7 +85,7 @@ class Backup extends Model
         'disk' => 'required|string',
         'checksum' => 'nullable|string',
         'bytes' => 'numeric',
-        'upload_id' => 'nullable|uuid',
+        'upload_id' => 'nullable|string',
     ];
 
     /**

database/migrations/2020_12_26_184914_add_upload_id_column_to_backups_table.php

@@ -14,7 +14,7 @@ class AddUploadIdColumnToBackupsTable extends Migration
     public function up()
     {
         Schema::table('backups', function (Blueprint $table) {
-            $table->char('upload_id', 36)->nullable()->after('bytes');
+            $table->text('upload_id')->nullable()->after('uuid');
         });
     }