Add files via upload

图片格式校验

src/include/uploadsafe.inc.php

@@ -1,13 +1,4 @@
 <?php
-/**
- * 文件上传安全校验方法
- *
- * @version        $Id: uploadsafe.inc.php 1 15:59 2020年8月19日Z tianya $
- * @package        DedeCMS.Libraries
- * @copyright      Copyright (c) 2007 - 2020, DesDev, Inc.
- * @license        http://help.dedecms.com/usersguide/license.html
- * @link           http://www.dedecms.com
- */
 if(!defined('DEDEINC')) exit('Request Error!');
 
 if(isset($_FILES['GLOBALS'])) exit('Request not allow!');
@@ -16,9 +7,7 @@ if(isset($_FILES['GLOBALS'])) exit('Request not allow!');
 //这里强制限定的某些文件类型禁止上传
 $cfg_not_allowall = "php|pl|cgi|asp|aspx|jsp|php3|shtm|shtml";
 $keyarr = array('name', 'type', 'tmp_name', 'size');
-if ($GLOBALS['cfg_html_editor']=='ckeditor' && isset($_FILES['upload']) || 
-$GLOBALS['cfg_html_editor']=='ckeditor4' && isset($_FILES['upload'])
-)
+if ($GLOBALS['cfg_html_editor']=='ckeditor' && isset($_FILES['upload']))
 {
     $_FILES['imgfile'] = $_FILES['upload'];
     $CKUpload = TRUE;
@@ -41,33 +30,18 @@ foreach($_FILES as $_key=>$_value)
     ${$_key.'_name'} = $_FILES[$_key]['name'];
     ${$_key.'_type'} = $_FILES[$_key]['type'] = preg_replace('#[^0-9a-z\./]#i', '', $_FILES[$_key]['type']);
     ${$_key.'_size'} = $_FILES[$_key]['size'] = preg_replace('#[^0-9]#','',$_FILES[$_key]['size']);
-
-    if (is_array(${$_key.'_name'})) {
-        if (count(${$_key.'_name'}) > 0) {
-            foreach (${$_key.'_name'} as $key => $value) {
-                if (!empty($value) && (preg_match("#\.(".$cfg_not_allowall.")$#i", $value) || !preg_match("#\.#", $value))) {
-                    if(!defined('DEDEADMIN'))
-                    {
-                        exit('Not Admin Upload filetype not allow !');
-                    }
-                }
-            }
-        }
-    } else {
-        if(!empty(${$_key.'_name'}) && (preg_match("#\.(".$cfg_not_allowall.")$#i",${$_key.'_name'}) || !preg_match("#\.#", ${$_key.'_name'})) )
+    if(!empty(${$_key.'_name'}) && (preg_match("#\.(".$cfg_not_allowall.")$#i",${$_key.'_name'}) || !preg_match("#\.#", ${$_key.'_name'})) )
+    {
+        if(!defined('DEDEADMIN'))
         {
-            if(!defined('DEDEADMIN'))
-            {
-                exit('Not Admin Upload filetype not allow !');
-            }
+            exit('Not Admin Upload filetype not allow !');
         }
     }
-    
-
     if(empty(${$_key.'_size'}))
     {
-        ${$_key.'_size'} = @filesize($$_key);
+        ${$_key.'_size'} = @filesize($$_key); 
     }
+	 $imtypes = array("image/pjpeg", "image/jpeg", "image/gif", "image/png", "image/xpng", "image/wbmp", "image/bmp"); if(in_array(strtolower(trim(${$_key.'_type'})), $imtypes)) { $image_dd = @getimagesize($$_key); if($image_dd == false){ continue; } if (!is_array($image_dd)) { exit('Upload filetype not allow !'); } }
     
     $imtypes = array
     (
@@ -75,30 +49,13 @@ foreach($_FILES as $_key=>$_value)
         "image/xpng", "image/wbmp", "image/bmp"
     );
 
-    if (is_array(${$_key.'_type'})) {
-        if (count(${$_key.'_type'}) > 0) {
-            foreach (${$_key.'_type'} as $key => $value) {
-                if(in_array(strtolower(trim($value)), $imtypes))
-                {
-                    $image_dd = @getimagesize($$_key);
-                    if (!is_array($image_dd))
-                    {
-                        exit('Upload filetype not allow !');
-                    }
-                }
-            }
-        }
-    } else {
-        if(in_array(strtolower(trim(${$_key.'_type'})), $imtypes))
+    if(in_array(strtolower(trim(${$_key.'_type'})), $imtypes))
+    {
+        $image_dd = @getimagesize($$_key); if($image_dd == false){ continue; }
+        if (!is_array($image_dd))
         {
-            $image_dd = @getimagesize($$_key);
-            if (!is_array($image_dd))
-            {
-                exit('Upload filetype not allow !');
-            }
+            exit('Upload filetype not allow !');
         }
     }
-
-
 }
 ?>