upgradeRestore.php
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<?php
/**
* Restore Step Controller.
*
* KnowledgeTree Community Edition
* Document Management Made Simple
* Copyright (C) 2008, 2009, 2010 KnowledgeTree Inc.
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License version 3 as published by the
* Free Software Foundation.
*
* 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 General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* You can contact KnowledgeTree Inc., PO Box 7775 #87847, San Francisco,
* California 94120-7775, or email info@knowledgetree.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 General Public License version 3.
*
* In accordance with Section 7(b) of the GNU General Public License version 3,
* these Appropriate Legal Notices must retain the display of the "Powered by
* KnowledgeTree" logo and retain the original copyright notice. If the display of the
* logo is not reasonably feasible for technical reasons, the Appropriate Legal Notices
* must display the words "Powered by KnowledgeTree" and retain the original
* copyright notice.
* Contributor( s): ______________________________________
*/
/**
*
* @copyright 2008-2010, KnowledgeTree Inc.
* @license GNU General Public License version 3
* @author KnowledgeTree Team
* @package Upgrader
* @version Version 0.1
*/
class upgradeRestore extends Step {
protected $silent = false;
protected $temp_variables = array();
public function doStep() {
$this->temp_variables = array("step_name"=>"restore", "silent"=>$this->silent,
"loadingText"=>"The database restore is under way. Please wait until it completes");
$this->temp_variables['restore'] = false;
$this->temp_variables['display'] = '';
$this->temp_variables['dir'] = '';
if(!$this->inStep("restore")) {
$this->doRun();
return 'landing';
}
if($this->next()) {
if ($this->doRun()) {
return 'next';
}
} else if($this->previous()) {
return 'previous';
}
else if ($this->restoreNow()) {
$this->temp_variables['restoreSuccessful'] = false;
$this->doRun(true);
return 'next';
}
$this->doRun();
return 'landing';
}
private function restoreNow() {
return isset($_POST['RunRestore']);
}
private function doRun($restore = false) {
$this->readConfig();
if (!$restore) {
$this->temp_variables['selected'] = false;
if ($this->select()) {
$this->restoreSelected();
$this->temp_variables['selected'] = true;
$this->temp_variables['availableBackups'] = true;
}
$this->restoreConfirm();
} // end not running a restore, just setting up
else {
$this->restoreDatabase();
}
return true;
}
private function select() {
return isset($_POST['RestoreSelect']);
}
private function restoreDatabase()
{
$this->temp_variables['restore'] = true;
//$status = $_SESSION['backupStatus'];
$filename = $_SESSION['backupFile'];
$stmt = $this->util->create_restore_stmt($filename, $this->dbSettings);
$dir = $stmt['dir'];
if (is_file($dir . '/mysql') || is_file($dir . '/mysql.exe'))
{
$curdir=getcwd();
chdir($dir);
$ok=true;
$stmts=explode("\n",$stmt['cmd']);
foreach($stmts as $stmt)
{
$handle = popen($stmt, 'r');
if ($handle=='false')
{
$ok=false;
break;
}
$read = fread($handle, 10240);
pclose($handle);
$_SESSION['restoreOutput']=$read;
}
$_SESSION['restoreStatus'] = $ok;
// should be some sort of error checking, really
$this->restoreDone();
}
}
private function restoreDone()
{
$status = $_SESSION['restoreStatus'];
$filename = $_SESSION['backupFile'];
if ($status)
{
$this->temp_variables['display'] = 'The restore of <nobr><i>"' . $filename . '"</i></nobr> has been completed.
<P>
It appears as though the <font color=green>restore has been successful</font>.
<P>';
$this->temp_variables['title'] = 'Restore Complete';
$this->temp_variables['restoreSuccessful'] = true;
}
else
{
$this->temp_variables['display'] = 'It appears as though <font color=red>the restore process has failed</font>. <P>
Unfortunately, it is difficult to diagnose these problems automatically
and would recommend that you try to do the backup process manually.
<P>
We appologise for the inconvenience.
<P>
<table bgcolor="lightgrey">
<tr>
<td>' . $_SESSION['restoreOutput'] . '
</table>';
$this->temp_variables['title'] = 'Restore Failed';
$this->temp_variables['restoreSuccessful'] = false;
}
}
private function restoreSelect()
{
$this->temp_variables['availableBackups'] = false;
$dir = $this->util->resolveTempDir();
$files = array();
$dh = opendir($dir);
if ($dh)
{
while (($file = readdir($dh)) !== false)
{
if (!preg_match('/kt-backup.+\.sql/',$file)) {
continue;
}
$files[] = $file;
}
closedir($dh);
}
$this->temp_variables['title'] = 'Select Backup to Restore';
$this->temp_variables['dir'] = $dir;
if (count($files) != 0) {
$this->temp_variables['availableBackups'] = true;
$this->temp_variables['files'] = $files;
}
}
private function restoreSelected()
{
$file=$_REQUEST['file'];
$dir = $this->util->resolveTempDir();
$_SESSION['backupFile'] = $dir . '/' . $file;
}
private function restoreConfirm()
{
if (!isset($_SESSION['backupFile']) || !is_file($_SESSION['backupFile']) || filesize($_SESSION['backupFile']) == 0)
{
$this->restoreSelect();
return;
}
// $status = $_SESSION['backupStatus'];
$filename = $_SESSION['backupFile'];
$stmt = $this->util->create_restore_stmt($filename, $this->dbSettings);
$this->temp_variables['title'] = 'Confirm Restore';
$this->temp_variables['dir'] = $stmt['dir'];
$this->temp_variables['display'] = $stmt['display'];
$this->temp_variables['availableBackups'] = true;
$this->temp_variables['selected'] = true;
}
}
?>