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mirror of https://github.com/salesagility/SuiteCRM.git synced 2024-11-22 07:52:36 +00:00
salesagility_SuiteCRM/modules/ModuleBuilder/parsers/views/History.php
2023-07-18 15:53:47 +01:00

255 lines
9.0 KiB
PHP
Executable File

<?php
/**
*
* SugarCRM Community Edition is a customer relationship management program developed by
* SugarCRM, Inc. Copyright (C) 2004-2013 SugarCRM Inc.
*
* SuiteCRM is an extension to SugarCRM Community Edition developed by SalesAgility Ltd.
* Copyright (C) 2011 - 2018 SalesAgility Ltd.
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU Affero General Public License version 3 as published by the
* Free Software Foundation with the addition of the following permission added
* to Section 15 as permitted in Section 7(a): FOR ANY PART OF THE COVERED WORK
* IN WHICH THE COPYRIGHT IS OWNED BY SUGARCRM, SUGARCRM DISCLAIMS THE WARRANTY
* OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
* details.
*
* You should have received a copy of the GNU Affero General Public License along with
* this program; if not, see http://www.gnu.org/licenses or write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA.
*
* You can contact SugarCRM, Inc. headquarters at 10050 North Wolfe Road,
* SW2-130, Cupertino, CA 95014, USA. or at email address contact@sugarcrm.com.
*
* The interactive user interfaces in modified source and object code versions
* of this program must display Appropriate Legal Notices, as required under
* Section 5 of the GNU Affero General Public License version 3.
*
* In accordance with Section 7(b) of the GNU Affero General Public License version 3,
* these Appropriate Legal Notices must retain the display of the "Powered by
* SugarCRM" logo and "Supercharged by SuiteCRM" logo. If the display of the logos is not
* reasonably feasible for technical reasons, the Appropriate Legal Notices must
* display the words "Powered by SugarCRM" and "Supercharged by SuiteCRM".
*/
if (!defined('sugarEntry') || !sugarEntry) {
die('Not A Valid Entry Point');
}
require_once 'modules/ModuleBuilder/parsers/constants.php';
require_once 'modules/ModuleBuilder/parsers/views/HistoryInterface.php';
/**
* Class History
*/
#[\AllowDynamicProperties]
class History implements HistoryInterface
{
/**
* @var string $_dirname
* base directory for the history files
*/
private $_dirname;
/**
* @var string $_basename
* base name for a history file, for example, listviewdef.php
*/
private $_basename;
/**
* @var array $_list
* the history - a list of history files
*/
private $_list;
/**
* @var string $_previewFilename
* the location of a file for preview
*/
private $_previewFilename;
/**
* History constructor.
* @param string $previewFilename The filename which the caller expects for a preview file
*/
public function __construct($previewFilename)
{
$GLOBALS ['log']->debug(get_class($this) . "->__construct( {$previewFilename} )");
$this->_previewFilename = $previewFilename;
$this->_list = array();
$this->_basename = basename($this->_previewFilename);
$this->_dirname = dirname($this->_previewFilename);
$this->_historyLimit = isset($GLOBALS ['sugar_config'] ['studio_max_history']) ? $GLOBALS ['sugar_config'] ['studio_max_history'] : 50;
// create the history directory if it does not already exist
if (!is_dir($this->_dirname)) {
mkdir_recursive($this->_dirname);
} else {
// Reconstruct the history from the saved files
$filenameList = glob($this->getFileByTimestamp('*'));
if (!empty($filenameList)) {
foreach ($filenameList as $filename) {
if (preg_match('/(\d+)$/', $filename, $match)) {
$this->_list [] = $match[1];
}
}
}
}
// now sort the files, oldest first
if (count($this->_list) > 0) {
sort($this->_list);
}
}
/**
* Get the most recent item in the history
* @return integer timestamp of the first item
*/
public function getCount()
{
return count($this->_list);
}
/**
* Get the most recent item in the history
* @return integer timestamp of the first item
*/
public function getFirst()
{
return end($this->_list);
}
/**
* Get the oldest item in the history (the default layout)
* @return integer timestamp of the last item
*/
public function getLast()
{
return reset($this->_list);
}
/**
* Get the next oldest item in the history
* @return integer timestamp of the next item
*/
public function getNext()
{
return prev($this->_list);
}
/**
* Get the nth item in the history (where the zeroeth record is the most recent)
* @param integer $index
* @return integer timestamp of the nth item
*/
public function getNth($index)
{
$value = end($this->_list);
$i = 0;
while ($i < $index) {
$value = prev($this->_list);
$i++;
}
return $value;
}
/**
* Add an item to the history
* @param string $path
* @return string A GMT Unix timestamp for this newly added item
*/
public function append($path)
{
$time = '';
// make sure we don't have a duplicate filename - highly unusual as two people should not be using Studio/MB concurrently, but when testing quite possible to do two appends within one second...
// because so unlikely in normal use we handle this the naive way by waiting a second so our naming scheme doesn't get overelaborated
$retries = 0;
$now = TimeDate::getInstance()->getNow();
$new_file = null;
for ($retries = 0; !file_exists($new_file) && $retries < 5; $retries++) {
$now->modify("+1 second");
$time = $now->__get('ts');
$new_file = $this->getFileByTimestamp($time);
}
// now we have a unique filename, copy the file into the history
if (file_exists($path)) {
copy($path, $new_file);
}
$this->_list [] = $time;
// finally, trim the number of files we're holding in the history to that specified in the configuration
// truncate the oldest files, keeping only the most recent $GLOBALS['sugar_config']['studio_max_history'] files (zero=keep them all)
$to_delete = $this->getCount() - $this->_historyLimit;
if ($this->_historyLimit != 0 && $to_delete) {
// most recent files are at the end of the list, so we strip out the first count-max_history records
// can't just use array_shift because it renumbers numeric keys (our timestamp keys) to start from zero...
for ($i = 0; $i < $to_delete; $i++) {
$timestamp = array_shift($this->_list);
if (!unlink($this->getFileByTimestamp($timestamp))) {
$GLOBALS ['log']->warn("History.php: unable to remove history file {$timestamp} from directory {$this->_dirname} - permissions problem?");
}
}
}
// finally, remove any history preview file that might be lurking around - as soon as we append a new record it supercedes any old preview, so that must be removed (bug 20130)
if (file_exists($this->_previewFilename)) {
$GLOBALS ['log']->debug(get_class($this) . "->append(): removing old history file at {$this->_previewFilename}");
unlink($this->_previewFilename);
}
return $time;
}
/**
* Restore the historical layout identified by timestamp
* @param integer $timestamp Unix timestamp GMT Timestamp of the layout to recover
* @return integer GMT Timestamp if successful, null if failure (if the file could not be copied for some reason)
*/
public function restoreByTimestamp($timestamp)
{
$filename = $this->getFileByTimestamp($timestamp);
$GLOBALS ['log']->debug(get_class($this) . ": restoring from $filename to {$this->_previewFilename}");
if (file_exists($filename)) {
copy($filename, $this->_previewFilename);
return $timestamp;
}
return null;
}
/**
* Undo the restore - revert back to the layout before the restore
*/
public function undoRestore()
{
if (file_exists($this->_previewFilename)) {
unlink($this->_previewFilename);
}
}
/**
* Returns full path to history file by timestamp. This function returns file path even if file doesn't exist
* @param integer $timestamp Unix timestamp
* @return string
*/
public function getFileByTimestamp($timestamp)
{
return $this->_dirname . DIRECTORY_SEPARATOR . $this->_basename . '_' . $timestamp;
}
}