first commit

classes/FileUploader.php

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+<?php
+/**
+ * Copyright since 2007 PrestaShop SA and Contributors
+ * PrestaShop is an International Registered Trademark & Property of PrestaShop SA
+ *
+ * NOTICE OF LICENSE
+ *
+ * This source file is subject to the Open Software License (OSL 3.0)
+ * that is bundled with this package in the file LICENSE.md.
+ * It is also available through the world-wide-web at this URL:
+ * https://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@prestashop.com so we can send you a copy immediately.
+ *
+ * DISCLAIMER
+ *
+ * Do not edit or add to this file if you wish to upgrade PrestaShop to newer
+ * versions in the future. If you wish to customize PrestaShop for your
+ * needs please refer to https://devdocs.prestashop.com/ for more information.
+ *
+ * @author    PrestaShop SA and Contributors <contact@prestashop.com>
+ * @copyright Since 2007 PrestaShop SA and Contributors
+ * @license   https://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
+ */
+class FileUploaderCore
+{
+    protected $allowedExtensions = [];
+
+    /** @var QqUploadedFileXhr|QqUploadedFileForm|false */
+    protected $file;
+    protected $sizeLimit;
+
+    public function __construct(array $allowedExtensions = [], $sizeLimit = 10485760)
+    {
+        $allowedExtensions = array_map('strtolower', $allowedExtensions);
+
+        $this->allowedExtensions = $allowedExtensions;
+        $this->sizeLimit = $sizeLimit;
+
+        if (isset($_GET['qqfile'])) {
+            $this->file = new QqUploadedFileXhr();
+        } elseif (isset($_FILES['qqfile'])) {
+            $this->file = new QqUploadedFileForm();
+        } else {
+            $this->file = false;
+        }
+    }
+
+    protected function toBytes($str)
+    {
+        $val = trim($str);
+        $last = strtolower($str[strlen($str) - 1]);
+        switch ($last) {
+            case 'g':
+                $val *= 1024;
+                // no break
+            case 'm':
+                $val *= 1024;
+                // no break
+            case 'k':
+                $val *= 1024;
+        }
+
+        return $val;
+    }
+
+    /**
+     * Returns array('success'=>true) or array('error'=>'error message').
+     */
+    public function handleUpload()
+    {
+        if (!$this->file) {
+            return ['error' => Context::getContext()->getTranslator()->trans('No files were uploaded.', [], 'Admin.Notifications.Error')];
+        }
+
+        $size = $this->file->getSize();
+
+        if ($size == 0) {
+            return ['error' => Context::getContext()->getTranslator()->trans('Source file does not exist or is empty.', [], 'Admin.Notifications.Error')];
+        }
+        if ($size > $this->sizeLimit) {
+            return ['error' => Context::getContext()->getTranslator()->trans('The uploaded file is too large.', [], 'Admin.Notifications.Error')];
+        }
+
+        $pathinfo = pathinfo($this->file->getName());
+        $these = implode(', ', $this->allowedExtensions);
+        if (!isset($pathinfo['extension'])) {
+            return ['error' => Context::getContext()->getTranslator()->trans('File has an invalid extension, it should be one of these: %s.', [$these], 'Admin.Notifications.Error')];
+        }
+        $ext = $pathinfo['extension'];
+        if ($this->allowedExtensions && !in_array(strtolower($ext), $this->allowedExtensions)) {
+            return ['error' => Context::getContext()->getTranslator()->trans('File has an invalid extension, it should be one of these: %s.', [$these], 'Admin.Notifications.Error')];
+        }
+
+        return $this->file->save();
+    }
+}