1 files changed, 133 insertions, 0 deletions
diff --git a/phpBB/phpbb/install/helper/file_updater/compression_file_updater.php b/phpBB/phpbb/install/helper/file_updater/compression_file_updater.php
new file mode 100644
index 0000000000..ede992fb6e
--- /dev/null
+++ b/phpBB/phpbb/install/helper/file_updater/compression_file_updater.php
@@ -0,0 +1,133 @@
+<?php
+/**
+ *
+ * This file is part of the phpBB Forum Software package.
+ *
+ * @copyright (c) phpBB Limited <https://www.phpbb.com>
+ * @license GNU General Public License, version 2 (GPL-2.0)
+ *
+ * For full copyright and license information, please see
+ * the docs/CREDITS.txt file.
+ *
+ */
+
+namespace phpbb\install\helper\file_updater;
+
+use phpbb\install\helper\update_helper;
+
+/**
+ * File updater for generating archive with updated files
+ */
+class compression_file_updater implements file_updater_interface
+{
+	/**
+	 * @var \compress
+	 */
+	protected $compress;
+
+	/**
+	 * @var update_helper
+	 */
+	protected $update_helper;
+
+	/**
+	 * @var string
+	 */
+	protected $phpbb_root_path;
+
+	/**
+	 * @var string
+	 */
+	protected $php_ext;
+
+	/**
+	 * Constructor
+	 *
+	 * @param update_helper	$update_helper
+	 * @param string		$phpbb_root_path
+	 * @param string		$php_ext
+	 */
+	public function __construct(update_helper $update_helper, $phpbb_root_path, $php_ext)
+	{
+		$this->compress			= null;
+		$this->update_helper	= $update_helper;
+		$this->phpbb_root_path	= $phpbb_root_path;
+		$this->php_ext			= $php_ext;
+	}
+
+	/**
+	 * Set the compression method
+	 *
+	 * @param string	$method	Compression method's file extension
+	 *
+	 * @return string	Archive's filename
+	 */
+	public function init($method)
+	{
+		$this->update_helper->include_file('includes/functions_compress.' . $this->php_ext);
+
+		$archive_filename = 'update_archive_' . time() . '_' . uniqid();
+		$path = $this->phpbb_root_path . 'store/' . $archive_filename . '' . $method;
+
+		if ($method === '.zip')
+		{
+			$this->compress = new \compress_zip('w', $path);
+		}
+		else
+		{
+			$this->compress = new \compress_tar('w', $path, $method);
+		}
+
+		return $path;
+	}
+
+	/**
+	 * Close archive writing process
+	 */
+	public function close()
+	{
+		$this->compress->close();
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function delete_file($path_to_file)
+	{
+		// We do absolutely nothing here, as this function is called when a file should be
+		// removed from the filesystem, but since this is an archive generator, it clearly
+		// cannot do that.
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function create_new_file($path_to_file_to_create, $source, $create_from_content = false)
+	{
+		if ($create_from_content)
+		{
+			$this->compress->add_data($source, $path_to_file_to_create);
+		}
+		else
+		{
+			$this->compress->add_custom_file($source, $path_to_file_to_create);
+		}
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function update_file($path_to_file_to_update, $source, $create_from_content = false)
+	{
+		// Both functions are identical here
+		$this->create_new_file($path_to_file_to_update, $source, $create_from_content);
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function get_method_name()
+	{
+		return 'compression';
+	}
+}