From 0c6936925a988611dca407333424b1b821c50c4a Mon Sep 17 00:00:00 2001
From: Alexander Ebert <ebert@woltlab.com>
Date: Wed, 14 Jan 2015 21:27:55 +0100
Subject: [PATCH] Added work-around for broken PHP in Plesk 12 on Ubuntu 14.04

---
 wcfsetup/install.php                          | 21 ++++++++++++++++---
 .../files/lib/system/io/GZipFile.class.php    | 19 +++++++++++++++--
 2 files changed, 35 insertions(+), 5 deletions(-)

diff --git a/wcfsetup/install.php b/wcfsetup/install.php
index f38adc0423..f4e34d6134 100644
--- a/wcfsetup/install.php
+++ b/wcfsetup/install.php
@@ -721,6 +721,13 @@ class File {
  * @author	Marcel Werk
  */
 class ZipFile extends File {
+	/**
+	 * checks if gz*64 functions are available instead of gz*
+	 * https://bugs.php.net/bug.php?id=53829
+	 * @var	boolean
+	 */
+	protected static $gzopen64 = null;
+	
 	/**
 	 * Opens a new zipped file.
 	 *
@@ -728,11 +735,15 @@ class ZipFile extends File {
 	 * @param	string		$mode
 	 */
 	public function __construct($filename, $mode = 'wb') {
+		if (self::$gzopen64 === null) {
+			self::$gzopen64 = (function_exists('gzopen64'));
+		}
+		
 		$this->filename = $filename;
-		if (!function_exists('gzopen')) {
+		if (!self::$gzopen64 && !function_exists('gzopen')) {
 			throw new SystemException('Can not find functions of the zlib extension');
 		}
-		$this->resource = @gzopen($filename, $mode);
+		$this->resource = (self::$gzopen64 ? @gzopen64($filename, $mode) : @gzopen($filename, $mode));
 		if ($this->resource === false) {
 			throw new SystemException('Can not open file ' . $filename);
 		}
@@ -745,7 +756,11 @@ class ZipFile extends File {
 	 * @param	array		$arguments
 	 */
 	public function __call($function, $arguments) {
-		if (function_exists('gz' . $function)) {
+		if (self::$gzopen64 && function_exists('gz' . $function . '64')) {
+			array_unshift($arguments, $this->resource);
+			return call_user_func_array('gz' . $function . '64', $arguments);
+		}
+		else if (function_exists('gz' . $function)) {
 			array_unshift($arguments, $this->resource);
 			return call_user_func_array('gz' . $function, $arguments);
 		}
diff --git a/wcfsetup/install/files/lib/system/io/GZipFile.class.php b/wcfsetup/install/files/lib/system/io/GZipFile.class.php
index d92b170ec1..2a329200a1 100644
--- a/wcfsetup/install/files/lib/system/io/GZipFile.class.php
+++ b/wcfsetup/install/files/lib/system/io/GZipFile.class.php
@@ -13,6 +13,13 @@ use wcf\system\exception\SystemException;
  * @category	Community Framework
  */
 class GZipFile extends File {
+	/**
+	 * checks if gz*64 functions are available instead of gz*
+	 * https://bugs.php.net/bug.php?id=53829
+	 * @var	boolean
+	 */
+	protected static $gzopen64 = null;
+	
 	/**
 	 * Opens a gzip file.
 	 * 
@@ -20,8 +27,12 @@ class GZipFile extends File {
 	 * @param	string		$mode
 	 */
 	public function __construct($filename, $mode = 'wb') {
+		if (self::$gzopen64 === null) {
+			self::$gzopen64 = (function_exists('gzopen64'));
+		}
+		
 		$this->filename = $filename;
-		$this->resource = gzopen($filename, $mode);
+		$this->resource = (self::$gzopen64 ? gzopen64($filename, $mode) : gzopen($filename, $mode));
 		if ($this->resource === false) {
 			throw new SystemException('Can not open file ' . $filename);
 		}
@@ -34,7 +45,11 @@ class GZipFile extends File {
 	 * @param	array		$arguments
 	 */
 	public function __call($function, $arguments) {
-		if (function_exists('gz' . $function)) {
+		if (self::$gzopen64 && function_exists('gz' . $function . '64')) {
+			array_unshift($arguments, $this->resource);
+			return call_user_func_array('gz' . $function . '64', $arguments);
+		}
+		else if (function_exists('gz' . $function)) {
 			array_unshift($arguments, $this->resource);
 			return call_user_func_array('gz' . $function, $arguments);
 		}
-- 
2.20.1