From 069cd37e6931734bb6a4d5905a9d58428c5e8dde Mon Sep 17 00:00:00 2001
From: Marcel Werk <burntime@woltlab.com>
Date: Thu, 30 May 2013 20:25:11 +0200
Subject: [PATCH] Fixed tmp folder issues

---
 wcfsetup/install.php | 79 +++++++++++++++++++++++++++-----------------
 1 file changed, 49 insertions(+), 30 deletions(-)

diff --git a/wcfsetup/install.php b/wcfsetup/install.php
index 22aa4fc1f8..23aa678f84 100644
--- a/wcfsetup/install.php
+++ b/wcfsetup/install.php
@@ -227,43 +227,62 @@ class BasicFileUtil {
 	 * @return	string
 	 */
 	public static function getTempFolder() {
-		$tmpDirName = TMP_FILE_PREFIX.'/';
-		
 		// use tmp folder in document root by default
 		if (!empty($_SERVER['DOCUMENT_ROOT'])) {
-			if (!@file_exists($_SERVER['DOCUMENT_ROOT'].'/tmp/'.$tmpDirName)) {
-				@mkdir($_SERVER['DOCUMENT_ROOT'].'/tmp/'.$tmpDirName, 0777, true);
-				self::makeWritable($_SERVER['DOCUMENT_ROOT'].'/tmp/'.$tmpDirName);
+			if (strpos($_SERVER['DOCUMENT_ROOT'], 'strato') !== false) {
+				// strato bugfix
+				// create tmp folder in document root automatically
+				if (!@file_exists($_SERVER['DOCUMENT_ROOT'].'/tmp')) {
+					@mkdir($_SERVER['DOCUMENT_ROOT'].'/tmp/', 0777);
+					try {
+						self::makeWritable($_SERVER['DOCUMENT_ROOT'].'/tmp/');
+					}
+					catch (SystemException $e) {}
+				}
 			}
-			
-			if (@file_exists($_SERVER['DOCUMENT_ROOT'].'/tmp/'.$tmpDirName) && @is_writable($_SERVER['DOCUMENT_ROOT'].'/tmp/'.$tmpDirName)) {
-				return $_SERVER['DOCUMENT_ROOT'].'/tmp/'.$tmpDirName;
+			if (@file_exists($_SERVER['DOCUMENT_ROOT'].'/tmp') && @is_writable($_SERVER['DOCUMENT_ROOT'].'/tmp')) {
+				return $_SERVER['DOCUMENT_ROOT'].'/tmp/';
 			}
 		}
-		
-		foreach (array('TMP', 'TEMP', 'TMPDIR') as $tmpDir) {
-			if (isset($_ENV[$tmpDir]) && @is_writable($_ENV[$tmpDir])) {
-				$dir = $_ENV[$tmpDir] . '/' . $tmpDirName;
-				@mkdir($dir, 0777);
-				self::makeWritable($dir);
-				
-				if (@file_exists($dir) && @is_writable($dir)) {
-					return $dir;
-				}
-			}
+	
+		if (isset($_ENV['TMP']) && @is_writable($_ENV['TMP'])) {
+			return $_ENV['TMP'] . '/';
 		}
-		
-		$dir = INSTALL_SCRIPT_DIR . 'tmp/' . $tmpDirName;
-		@mkdir($dir, 0777);
-		self::makeWritable($dir);
-		
-		if (!@file_exists($dir) || !@is_writable($dir)) {
-			$tmpDir = explode('/', $dir);
-			array_pop($tmpDir);
-			$dir = implode('/', $tmpDir);
-			
-			throw new SystemException('There is no access to the system temporary folder due to an unknown reason and no user specific temporary folder exists in '.INSTALL_SCRIPT_DIR.'! This is a misconfiguration of your webserver software! Please create a folder called '.$dir.' using your favorite ftp program, make it writable and then retry this installation.');
+		if (isset($_ENV['TEMP']) && @is_writable($_ENV['TEMP'])) {
+			return $_ENV['TEMP'] . '/';
+		}
+		if (isset($_ENV['TMPDIR']) && @is_writable($_ENV['TMPDIR'])) {
+			return $_ENV['TMPDIR'] . '/';
+		}
+	
+		if (($path = ini_get('upload_tmp_dir')) && @is_writable($path)) {
+			return $path . '/';
+		}
+		if (@file_exists('/tmp/') && @is_writable('/tmp/')) {
+			return '/tmp/';
+		}
+		if (function_exists('session_save_path') && ($path = session_save_path()) && @is_writable($path)) {
+			return $path . '/';
+		}
+	
+		$path = WCF_DIR.'tmp/';
+		if (@file_exists($path) && @is_writable($path)) {
+			return $path;
+		}
+		else {
+			throw new SystemException('There is no access to the system temporary folder due to an unknown reason and no user specific temporary folder exists in '.INSTALL_SCRIPT_DIR.'! This is a misconfiguration of your webserver software! Please create a folder called '.$path.' using your favorite ftp program, make it writable and then retry this installation.');
 		}
+	}
+	
+	/**
+	 * Returns the temp folder for the installation.
+	 *
+	 * @return	string
+	 */
+	public static function getInstallTempFolder() {
+		$dir = self::getTempFolder() . TMP_FILE_PREFIX . '/';
+		@mkdir($dir);
+		self::makeWritable($dir);
 		
 		return $dir;
 	}
-- 
2.20.1