From 35e07cccb4f80b5e0af021aadc4b3c0c59517e05 Mon Sep 17 00:00:00 2001
From: Marcel Werk <burntime@woltlab.com>
Date: Mon, 13 Feb 2012 12:18:08 +0100
Subject: [PATCH] Using finfo to get the mime type of uploaded files

---
 .../lib/system/upload/UploadHandler.class.php |  5 +++--
 .../install/files/lib/util/FileUtil.class.php | 21 +++++++++++++++++++
 2 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/wcfsetup/install/files/lib/system/upload/UploadHandler.class.php b/wcfsetup/install/files/lib/system/upload/UploadHandler.class.php
index afdf62aa5b..73911764c5 100644
--- a/wcfsetup/install/files/lib/system/upload/UploadHandler.class.php
+++ b/wcfsetup/install/files/lib/system/upload/UploadHandler.class.php
@@ -1,5 +1,6 @@
 <?php
 namespace wcf\system\upload;
+use wcf\util\FileUtil;
 
 /**
  * Handles file uploads.
@@ -33,11 +34,11 @@ class UploadHandler {
 		if (is_array($rawFileData['name'])) {
 			// multiple uploads
 			for ($i = 0, $l = count($rawFileData['name']); $i < $l; $i++) {
-				$this->files[] = new UploadFile($rawFileData['name'][$i], $rawFileData['tmp_name'][$i], $rawFileData['size'][$i], $rawFileData['error'][$i], $rawFileData['type'][$i]);
+				$this->files[] = new UploadFile($rawFileData['name'][$i], $rawFileData['tmp_name'][$i], $rawFileData['size'][$i], $rawFileData['error'][$i], (FileUtil::getMimeType($rawFileData['tmp_name'][$i]) ?: $rawFileData['type'][$i]));
 			}
 		}
 		else {
-			$this->files[] = new UploadFile($rawFileData['name'], $rawFileData['tmp_name'], $rawFileData['size'], $rawFileData['error'], $rawFileData['type']);
+			$this->files[] = new UploadFile($rawFileData['name'], $rawFileData['tmp_name'], $rawFileData['size'], $rawFileData['error'], (FileUtil::getMimeType($rawFileData['tmp_name']) ?: $rawFileData['type']));
 		}
 	}
 	
diff --git a/wcfsetup/install/files/lib/util/FileUtil.class.php b/wcfsetup/install/files/lib/util/FileUtil.class.php
index 6164f8fee6..eb27e610d3 100644
--- a/wcfsetup/install/files/lib/util/FileUtil.class.php
+++ b/wcfsetup/install/files/lib/util/FileUtil.class.php
@@ -17,6 +17,12 @@ use wcf\system\WCF;
  * @category 	Community Framework
  */
 class FileUtil {
+	/**
+	 * finfo instance
+	 * @var \finfo
+	 */
+	protected static $finfo = null;
+	
 	/**
 	 * Tries to find the temp folder.
 	 * 
@@ -600,4 +606,19 @@ class FileUtil {
 	public static function isApacheModule() {
 		return function_exists('apache_get_version');
 	}
+	
+	/**
+	 * Returns the mime type of a file.
+	 * 
+	 * @param	string		$filename
+	 * @return	string
+	 */
+	public static function getMimeType($filename) {
+		if (self::$finfo === null) {
+			if (!class_exists('\finfo', false)) return '';
+			self::$finfo = new \finfo(FILEINFO_MIME_TYPE);
+		}
+		
+		return self::$finfo->file($filename);
+	}
 }
-- 
2.20.1