319 lines
9.2 KiB
PHP
319 lines
9.2 KiB
PHP
<?php
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/**
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*
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* SugarCRM Community Edition is a customer relationship management program developed by
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* SugarCRM, Inc. Copyright (C) 2004-2013 SugarCRM Inc.
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*
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* SuiteCRM is an extension to SugarCRM Community Edition developed by SalesAgility Ltd.
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* Copyright (C) 2011 - 2018 SalesAgility Ltd.
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*
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* This program is free software; you can redistribute it and/or modify it under
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* the terms of the GNU Affero General Public License version 3 as published by the
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* Free Software Foundation with the addition of the following permission added
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* to Section 15 as permitted in Section 7(a): FOR ANY PART OF THE COVERED WORK
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* IN WHICH THE COPYRIGHT IS OWNED BY SUGARCRM, SUGARCRM DISCLAIMS THE WARRANTY
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* OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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* details.
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*
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* You should have received a copy of the GNU Affero General Public License along with
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* this program; if not, see http://www.gnu.org/licenses or write to the Free
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* Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301 USA.
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*
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* You can contact SugarCRM, Inc. headquarters at 10050 North Wolfe Road,
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* SW2-130, Cupertino, CA 95014, USA. or at email address contact@sugarcrm.com.
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*
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* The interactive user interfaces in modified source and object code versions
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* of this program must display Appropriate Legal Notices, as required under
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* Section 5 of the GNU Affero General Public License version 3.
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*
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* In accordance with Section 7(b) of the GNU Affero General Public License version 3,
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* these Appropriate Legal Notices must retain the display of the "Powered by
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* SugarCRM" logo and "Supercharged by SuiteCRM" logo. If the display of the logos is not
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* reasonably feasible for technical reasons, the Appropriate Legal Notices must
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* display the words "Powered by SugarCRM" and "Supercharged by SuiteCRM".
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*/
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if (!defined('sugarEntry') || !sugarEntry) {
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die('Not A Valid Entry Point');
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}
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require_once('include/externalAPI/ExternalAPIFactory.php');
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/**
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* @internal
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* Upload file stream handler
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*/
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#[\AllowDynamicProperties]
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class UploadStream
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{
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public const STREAM_NAME = "upload";
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protected static $upload_dir;
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/**
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* Method checks Suhosin restrictions to use streams in php
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*
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* @static
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* @return bool is allowed stream or not
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*/
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public static function getSuhosinStatus()
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{
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// looks like suhosin patch doesn't block protocols, only suhosin extension (tested on FreeBSD)
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// if suhosin is not installed it is okay for us
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if (extension_loaded('suhosin') == false) {
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return true;
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}
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$configuration = ini_get_all('suhosin', false);
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// suhosin simulation is okay for us
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if ($configuration['suhosin.simulation'] == true) {
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return true;
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}
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// checking that UploadStream::STREAM_NAME is allowed by white list
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$streams = $configuration['suhosin.executor.include.whitelist'];
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if ($streams != '') {
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$streams = explode(',', $streams);
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foreach ($streams as $stream) {
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$stream = explode('://', $stream, 2);
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if (count($stream) == 1) {
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if ($stream[0] == UploadStream::STREAM_NAME) {
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return true;
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}
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} elseif ($stream[1] == '' && $stream[0] == UploadStream::STREAM_NAME) {
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return true;
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}
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}
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$GLOBALS['log']->fatal('Stream ' . UploadStream::STREAM_NAME . ' is not listed in suhosin.executor.include.whitelist and blocked because of it');
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return false;
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}
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// checking that UploadStream::STREAM_NAME is not blocked by black list
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$streams = $configuration['suhosin.executor.include.blacklist'];
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if ($streams != '') {
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$streams = explode(',', $streams);
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foreach ($streams as $stream) {
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$stream = explode('://', $stream, 2);
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if ($stream[0] == UploadStream::STREAM_NAME) {
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$GLOBALS['log']->fatal('Stream ' . UploadStream::STREAM_NAME . 'is listed in suhosin.executor.include.blacklist and blocked because of it');
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return false;
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}
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}
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return true;
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}
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$GLOBALS['log']->fatal('Suhosin blocks all streams, please define ' . UploadStream::STREAM_NAME . ' stream in suhosin.executor.include.whitelist');
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return false;
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}
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/**
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* Get upload directory
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* @return string
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*/
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public static function getDir()
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{
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if (empty(self::$upload_dir)) {
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self::$upload_dir = rtrim($GLOBALS['sugar_config']['upload_dir'], '/\\');
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if (empty(self::$upload_dir)) {
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self::$upload_dir = "upload";
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}
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if (!file_exists(self::$upload_dir)) {
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sugar_mkdir(self::$upload_dir, 0755, true);
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}
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}
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return self::$upload_dir;
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}
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/**
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* Check if upload dir is writable
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* @return bool
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*/
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public static function writable()
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{
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return is_writable(self::getDir());
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}
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/**
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* Register the stream
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*/
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public static function register()
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{
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stream_wrapper_register(self::STREAM_NAME, self::class);
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}
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/**
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* Get real FS path of the upload stream file
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* @param string $path Upload stream path (with upload://)
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* @return string FS path
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*/
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public static function path($path)
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{
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$path = substr($path, strlen(self::STREAM_NAME) + 3); // cut off upload://
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$path = str_replace("\\", "/", $path); // canonicalize path
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if ($path == ".." || substr($path, 0, 3) == "../" || substr($path, -3, 3) == "/.." || strstr($path, "/../")) {
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return null;
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}
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return self::getDir() . "/" . $path;
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}
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/**
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* Ensure upload subdir exists
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* @param string $path Upload stream path (with upload://)
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* @param bool $writable
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* @return boolean
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*/
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public static function ensureDir($path, $writable = true)
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{
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$path = self::path($path);
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if (!is_dir($path)) {
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return sugar_mkdir($path, 0755, true);
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}
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return true;
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}
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public function dir_closedir()
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{
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closedir($this->dirp);
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}
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public function dir_opendir($path, $options)
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{
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$this->dirp = opendir(self::path($path));
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return !empty($this->dirp);
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}
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public function dir_readdir()
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{
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return readdir($this->dirp);
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}
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public function dir_rewinddir()
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{
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return rewinddir($this->dirp);
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}
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public function mkdir($path, $mode, $options)
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{
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return mkdir(self::path($path), $mode, ($options & STREAM_MKDIR_RECURSIVE) != 0);
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}
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public function rename($path_from, $path_to)
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{
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return rename(self::path($path_from), self::path($path_to));
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}
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public function rmdir($path, $options)
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{
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return rmdir(self::path($path));
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}
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public function stream_cast($cast_as)
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{
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return $this->fp;
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}
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public function stream_close()
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{
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fclose($this->fp);
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return true;
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}
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public function stream_eof()
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{
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return feof($this->fp);
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}
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public function stream_flush()
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{
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return fflush($this->fp);
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}
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public function stream_lock($operation)
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{
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return flock($this->fp, $operation);
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}
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public function stream_open($path, $mode)
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{
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$fullpath = self::path($path);
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if (empty($fullpath)) {
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return false;
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}
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if ($mode == 'r') {
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$this->fp = fopen($fullpath, $mode);
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} else {
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// if we will be writing, try to transparently create the directory
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$this->fp = @fopen($fullpath, $mode);
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if (!$this->fp && !file_exists(dirname($fullpath))) {
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if (!mkdir($concurrentDirectory = dirname($fullpath), 0755, true) && !is_dir($concurrentDirectory)) {
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throw new \RuntimeException(sprintf('Directory "%s" was not created', $concurrentDirectory));
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}
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$this->fp = fopen($fullpath, $mode);
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}
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}
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return !empty($this->fp);
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}
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public function stream_read($count)
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{
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return fread($this->fp, $count);
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}
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public function stream_seek($offset, $whence = SEEK_SET)
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{
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return fseek($this->fp, $offset, $whence) == 0;
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}
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public function stream_set_option($option, $arg1, $arg2)
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{
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return true;
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}
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public function stream_stat()
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{
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return fstat($this->fp);
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}
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public function stream_tell()
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{
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return ftell($this->fp);
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}
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public function stream_write($data)
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{
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return fwrite($this->fp, $data);
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}
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public function unlink($path)
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{
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unlink(self::path($path));
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return true;
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}
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public function url_stat($path, $flags)
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{
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return @stat(self::path($path));
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}
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public static function move_uploaded_file($upload, $path)
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{
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return move_uploaded_file($upload, self::path($path));
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}
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}
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