snapshot of https://github.com/espocrm/espocrm.git (master, 2026-09-18; blobs > 131072B omitted)

application/Espo/Core/Utils/File/ZipArchive.php

@@ -0,0 +1,92 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2026 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Core\Utils\File;
+
+use RuntimeException;
+
+class ZipArchive
+{
+    private Manager $fileManager;
+
+    public function __construct(?Manager $fileManager = null)
+    {
+        if ($fileManager === null) {
+            $fileManager = new Manager();
+        }
+
+        $this->fileManager = $fileManager;
+    }
+
+    /**
+     * Unzip archive.
+     *
+     * @param string $file A path to a zip file.
+     * @param string $destination A destination.
+     */
+    public function unzip(string $file, string $destination): bool
+    {
+        if (!class_exists('\ZipArchive')) {
+            throw new RuntimeException("php-zip extension is not installed. Cannot unzip the file.");
+        }
+
+        $zip = new \ZipArchive;
+
+        $res = $zip->open($file);
+
+        if ($res !== true) {
+            return false;
+        }
+
+        $this->fileManager->mkdir($destination);
+
+
+        for ($i = 0; $i < $zip->numFiles; $i ++) {
+            $filename = $zip->getNameIndex($i);
+
+            if ($filename === false) {
+                continue;
+            }
+
+            if (
+                str_contains($filename, '..') ||
+                str_starts_with($filename, '/') ||
+                str_starts_with($filename, '\\')
+            ) {
+                throw new RuntimeException("No allowed path '$filename'.");
+            }
+
+            $zip->extractTo($destination, $filename);
+        }
+
+        $zip->close();
+
+        return true;
+    }
+}