upgradeBackup.php
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<?php
/**
* Backup Step Controller.
*
* KnowledgeTree Community Edition
* Document Management Made Simple
* Copyright(C) 2008,2009 KnowledgeTree Inc.
* Portions copyright The Jam Warehouse Software(Pty) Limited
*
* 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.
*
* @copyright 2008-2009, KnowledgeTree Inc.
* @license GNU General Public License version 3
* @author KnowledgeTree Team
* @package Upgrader
* @version Version 0.1
*/
class upgradeBackup extends Step {
protected $silent = false;
protected $temp_variables = array();
public function doStep() {
$this->temp_variables = array("step_name"=>"backup", "silent"=>$this->silent,
"loadingText"=>"Your backup is under way. Please wait until it completes");
if(!$this->inStep("backup")) {
$this->doRun();
return 'landing';
}
if($this->next()) {
if ($this->doRun()) {
return 'next';
}
}
else if ($this->confirm()) {
if ($this->doRun('confirm')) {
return 'confirm';
}
}
else if ($this->backupNow()) {
if ($this->doRun('backupNow')) {
return 'next';
}
else {
return 'error';
}
}
else if($this->previous()) {
return 'previous';
}
else if ($this->upgrade()) {
header('Location: index.php?step_name=database');
exit;
}
$this->doRun();
return 'landing';
}
private function backupNow() {
return isset($_POST['BackupNow']);
}
private function doRun($action = null) {
$this->readConfig();
$this->temp_variables['action'] = $action;
$this->temp_variables['backupStatus'] = false;
if (is_null($action) || ($action == 'confirm')) {
$this->temp_variables['title'] = 'Confirm Backup';
$this->backupConfirm();
}
else {
$this->temp_variables['title'] = 'Backup Created';
$this->backup();
// TODO error checking (done in backupDone at the moment)
$this->backupDone();
}
return true;
}
private function backup() {
$targetfile = $_SESSION['backupFile'];
$stmt = $this->create_backup_stmt($targetfile);
$dir = $stmt['dir'];
if (is_file($dir . '/mysqladmin') || is_file($dir . '/mysqladmin.exe'))
{
$curdir=getcwd();
chdir($dir);
$handle = popen($stmt['cmd'], 'r');
$read = fread($handle, 10240);
pclose($handle);
$_SESSION['backupOutput'] = $read;
$dir = $this->util->resolveTempDir();
$_SESSION['backupFile'] = $stmt['target'];
if (!WINDOWS_OS) {
chmod($stmt['target'],0600);
}
if (is_file($stmt['target']) && filesize($stmt['target']) > 0) {
$_SESSION['backupStatus'] = true;
}
else {
$_SESSION['backupStatus'] = false;
}
}
}
private function backupDone() {
$status = $_SESSION['backupStatus'];
$filename = $_SESSION['backupFile'];
$this->temp_variables['backupStatus'] = $status;
if ($status)
{
$stmt = $this->util->create_restore_stmt($filename, $this->dbSettings);
$this->temp_variables['display'] = 'The backup file <nobr><i>"' . $filename . '"</i></nobr> has been created.
<P> It appears as though the <font color=green>backup has been successful</font>.
<P>';
if ($stmt['dir'] != '')
{
$this->temp_variables['dir'] = $stmt['dir'];
$this->temp_variables['display'] .= 'Manually, you would do the following to restore the backup:
<P>
<table bgcolor="lightgrey">
<tr>
<td>
<nobr>cd ' . $stmt['dir'] . '</nobr>
<br/>';
}
else
{
$this->temp_variables['display'] .= 'The mysql backup utility could not be found automatically. Please edit the config.ini and update the backup/mysql Directory entry.
<P>
If you need to restore from this backup, you should be able to use the following statements:
<P>
<table bgcolor="lightgrey">
<tr>
<td>';
}
$this->temp_variables['display'] .= '<nobr>' . $stmt['display'] . '</nobr>
</table>';
}
else
{
$this->temp_variables['display'] .= 'It appears as though <font color=red>the backup process has failed</font>.<P></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>' . $_SESSION['backupOutput'] . '</table>';
}
}
private function create_backup_stmt($targetfile=null)
{
$adminUser = $this->dbSettings['dbAdminUser'];
$adminPwd = $this->dbSettings['dbAdminPass'];
// $dbHost = $this->dbSettings['dbHost'];
$dbName = $this->dbSettings['dbName'];
$dbPort = trim($this->dbSettings['dbPort']);
if (empty($dbPort) || $dbPort=='default') $dbPort = get_cfg_var('mysql.default_port');
if (empty($dbPort)) $dbPort='3306';
// dbSocket doesn't exist as far as I can find, where was it coming from?
//$dbSocket = trim($this->dbSettings['dbSocket']);
$dbSocket = '';
if (empty($dbSocket) || $dbSocket=='default') $dbSocket = get_cfg_var('mysql.default_socket');
if (empty($dbSocket)) $dbSocket='../tmp/mysql.sock';
$date=date('Y-m-d-H-i-s');
$dir = $this->util->resolveMysqlDir();
$info['dir'] = $dir;
$prefix = '';
if (!WINDOWS_OS)
{
$prefix .= "";//$prefix .= "./";
}
if (@stat($dbSocket) !== false)
{
$mechanism = "--socket=\"$dbSocket\"";
}
else
{
$mechanism = "--port=\"$dbPort\"";
}
$tmpdir = $this->util->resolveTempDir();
if (is_null($targetfile))
{
$targetfile = "$tmpdir/kt-backup-$date.sql";
}
$stmt = $prefix . "mysqldump --user=\"$adminUser\" -p $mechanism \"$dbName\" > \"$targetfile\"";
$info['display'] = $stmt;
$info['target'] = $targetfile;
$stmt = $prefix. "mysqldump --user=\"$adminUser\" --password=\"$adminPwd\" $mechanism \"$dbName\" > \"$targetfile\"";
$info['cmd'] = $stmt;
return $info;
}
private function backupConfirm()
{
$stmt = $this->create_backup_stmt();
$_SESSION['backupFile'] = $stmt['target'];
$dir = $stmt['dir'];
$this->temp_variables['dir'] = $dir;
$this->temp_variables['display'] = $stmt['display'];
}
}
?>