mirror of
https://github.com/Combodo/iTop.git
synced 2026-02-13 07:24:13 +01:00
671 lines
19 KiB
PHP
671 lines
19 KiB
PHP
<?php
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// Copyright (C) 2010-2018 Combodo SARL
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//
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// This file is part of iTop.
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//
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// iTop is free software; you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// iTop is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with iTop. If not, see <http://www.gnu.org/licenses/>
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require_once('tar.php');
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interface BackupArchive
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{
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/**
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* @param string $sFile
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* @return bool <b>TRUE</b> if the file is present, <b>FALSE</b> otherwise.
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*/
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public function hasFile($sFile);
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/**
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* @param string $sDirectory
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* @return bool <b>TRUE</b> if the directory is present, <b>FALSE</b> otherwise.
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*/
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public function hasDir($sDirectory);
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/**
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* @param string $sDestinationDir
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* @param string $sArchiveFile
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* @return bool <b>TRUE</b> on success or <b>FALSE</b> on failure.
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*/
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public function extractFileTo($sDestinationDir, $sArchiveFile);
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/**
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* Extract a whole directory from the archive.
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* Usage: $oArchive->extractDirTo('/var/www/html/itop/data', '/production-modules/')
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* @param string $sDestinationDir
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* @param string $sArchiveDir Note: must start and end with a slash !!
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* @return bool <b>TRUE</b> on success or <b>FALSE</b> on failure.
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*/
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public function extractDirTo($sDestinationDir, $sArchiveDir);
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/**
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* Returns the entry contents using its name
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* @param string $name Name of the entry
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* @param int $length [optional] The length to be read from the entry. If 0, then the entire entry is read.
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* @param int $flags [optional] The flags to use to open the archive. the following values may be ORed to it. <b>ZipArchive::FL_UNCHANGED</b>
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* @return string the contents of the entry on success or <b>FALSE</b> on failure.
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*/
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public function getFromName($name, $length = 0, $flags = null);
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}
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if (class_exists('ZipArchive')) // The setup must be able to start even if the "zip" extension is not loaded
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{
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/**
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* Handles adding directories into a Zip archive, and a unified API for archive read
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* suggested enhancement: refactor the API for writing as well
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*/
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class ZipArchiveEx extends ZipArchive implements BackupArchive
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{
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public function addDir($sDir, $sZipDir = '')
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{
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if (is_dir($sDir))
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{
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if ($dh = opendir($sDir))
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{
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// Add the directory
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if (!empty($sZipDir))
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{
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$this->addEmptyDir($sZipDir);
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}
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// Loop through all the files
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while (($sFile = readdir($dh)) !== false)
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{
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// If it's a folder, run the function again!
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if (!is_file($sDir.$sFile))
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{
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// Skip parent and root directories
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if (($sFile !== ".") && ($sFile !== ".."))
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{
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$this->addDir($sDir.$sFile."/", $sZipDir.$sFile."/");
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}
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}
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else
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{
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// Add the files
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$this->addFile($sDir.$sFile, $sZipDir.$sFile);
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}
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}
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}
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}
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}
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/**
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* @param string $sFile
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* @return bool <b>TRUE</b> if the file is present, <b>FALSE</b> otherwise.
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*/
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public function hasFile($sFile)
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{
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return ($this->locateName($sFile) !== false);
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}
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/**
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* @param string $sDirectory
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* @return bool <b>TRUE</b> if the directory is present, <b>FALSE</b> otherwise.
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*/
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public function hasDir($sDirectory)
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{
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return ($this->locateName($sDirectory) !== false);
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}
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/**
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* @param string $sDestinationDir
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* @param string $sArchiveFile
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* @return bool <b>TRUE</b> on success or <b>FALSE</b> on failure.
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*/
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public function extractFileTo($sDestinationDir, $sArchiveFile)
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{
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return $this->extractTo($sDestinationDir, $sArchiveFile);
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}
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/**
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* Extract a whole directory from the archive.
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* Usage: $oZip->extractDirTo('/var/www/html/itop/data', '/production-modules/')
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* @param string $sDestinationDir
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* @param string $sZipDir Must start and end with a slash !!
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* @return boolean
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*/
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public function extractDirTo($sDestinationDir, $sZipDir)
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{
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$aFiles = array();
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for($i = 0; $i < $this->numFiles; $i++)
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{
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$sEntry = $this->getNameIndex($i);
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//Use strpos() to check if the entry name contains the directory we want to extract
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if (strpos($sEntry, $sZipDir) === 0)
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{
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//Add the entry to our array if it in in our desired directory
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$aFiles[] = $sEntry;
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}
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}
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// Extract only the selected files
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if ((count($aFiles) > 0) && ($this->extractTo($sDestinationDir, $aFiles) === true))
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{
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return true;
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}
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return false;
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}
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} // class ZipArchiveEx
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class BackupException extends Exception
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{
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}
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class DBBackup
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{
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// To be overriden depending on the expected usages
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protected function LogInfo($sMsg)
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{
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}
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protected function LogError($sMsg)
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{
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}
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protected $sDBHost;
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protected $iDBPort;
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protected $sDBUser;
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protected $sDBPwd;
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protected $sDBName;
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protected $sDBSubName;
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/**
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* Connects to the database to backup
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* By default, connects to the current MetaModel (must be loaded)
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*
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* @param string sDBHost Database host server
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* @param string $sDBUser User login
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* @param string $sDBPwd User password
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* @param string $sDBName Database name
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* @param string $sDBSubName Prefix to the tables of itop in the database
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*/
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public function __construct($sDBHost = null, $sDBUser = null, $sDBPwd = null, $sDBName = null, $sDBSubName = null)
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{
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if (is_null($sDBHost))
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{
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// Defaulting to the current config
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$sDBHost = MetaModel::GetConfig()->Get('db_host');
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$sDBUser = MetaModel::GetConfig()->Get('db_user');
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$sDBPwd = MetaModel::GetConfig()->Get('db_pwd');
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$sDBName = MetaModel::GetConfig()->Get('db_name');
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$sDBSubName = MetaModel::GetConfig()->Get('db_subname');
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}
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// Compute the port (if present in the host name)
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$aConnectInfo = explode(':', $sDBHost);
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$sDBHostName = $aConnectInfo[0];
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if (count($aConnectInfo) > 1)
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{
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$iDBPort = $aConnectInfo[1];
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}
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else
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{
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$iDBPort = null;
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}
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$this->sDBHost = $sDBHostName;
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$this->iDBPort = $iDBPort;
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$this->sDBUser = $sDBUser;
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$this->sDBPwd = $sDBPwd;
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$this->sDBName = $sDBName;
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$this->sDBSubName = $sDBSubName;
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}
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protected $sMySQLBinDir = '';
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/**
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* Create a normalized backup name, depending on the current date/time and Database
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* @param sNameSpec string Name and path, eventually containing itop placeholders + time formatting specs
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*/
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public function SetMySQLBinDir($sMySQLBinDir)
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{
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$this->sMySQLBinDir = $sMySQLBinDir;
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}
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/**
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* Create a normalized backup name, depending on the current date/time and Database
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* @param string sNameSpec Name and path, eventually containing itop placeholders + time formatting specs
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*/
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public function MakeName($sNameSpec = "__DB__-%Y-%m-%d")
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{
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$sFileName = $sNameSpec;
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$sFileName = str_replace('__HOST__', $this->sDBHost, $sFileName);
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$sFileName = str_replace('__DB__', $this->sDBName, $sFileName);
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$sFileName = str_replace('__SUBNAME__', $this->sDBSubName, $sFileName);
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// Transform %Y, etc.
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$sFileName = strftime($sFileName);
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return $sFileName;
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}
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/**
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* @deprecated 2.4.0 Zip files are limited to 4 Gb, use CreateCompressedBackup to create tar.gz files
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* @param string $sZipFile
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* @param string|null $sSourceConfigFile
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*/
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public function CreateZip($sZipFile, $sSourceConfigFile = null)
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{
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$aContents = array();
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// Note: the file is created by tempnam and might not be writeable by another process (Windows/IIS)
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// (delete it before spawning a process)
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$sDataFile = tempnam(SetupUtils::GetTmpDir(), 'itop-');
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$this->LogInfo("Data file: '$sDataFile'");
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$this->DoBackup($sDataFile);
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$aContents[] = array(
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'source' => $sDataFile,
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'dest' => 'itop-dump.sql',
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);
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foreach($this->GetAdditionalFiles($sSourceConfigFile) as $sArchiveFile => $sSourceFile)
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{
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$aContents[] = array(
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'source' => $sSourceFile,
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'dest' => $sArchiveFile,
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);
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}
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$this->DoZip($aContents, $sZipFile);
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// Windows/IIS: the data file has been created by the spawned process...
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// trying to delete it will issue a warning, itself stopping the setup abruptely
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@unlink($sDataFile);
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}
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/**
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* @param string $sTargetFile Path and name, without the extension
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* @param string|null $sSourceConfigFile Configuration file to embed into the backup, if not the current one
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*/
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public function CreateCompressedBackup($sTargetFile, $sSourceConfigFile = null)
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{
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$this->LogInfo("Creating backup: '$sTargetFile.tar.gz'");
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$oArchive = new ArchiveTar($sTargetFile.'.tar.gz');
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$sTmpFolder = APPROOT.'data/tmp-backup-'.rand(10000, getrandmax());
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$aFiles = $this->PrepareFilesToBackup($sSourceConfigFile, $sTmpFolder);
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$oArchive->createModify($aFiles, '', $sTmpFolder);
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SetupUtils::rrmdir($sTmpFolder);
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}
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/**
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* Copy files to store into the temporary folder, in addition to the SQL dump
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* @param string $sSourceConfigFile
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* @param string $sTmpFolder
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* @return array list of files to archive
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*/
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protected function PrepareFilesToBackup($sSourceConfigFile, $sTmpFolder)
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{
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$aRet = array();
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if (is_dir($sTmpFolder))
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{
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SetupUtils::rrmdir($sTmpFolder);
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}
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@mkdir($sTmpFolder, 0777, true);
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if (is_null($sSourceConfigFile))
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{
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$sSourceConfigFile = MetaModel::GetConfig()->GetLoadedFile();
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}
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if (!empty($sSourceConfigFile))
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{
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$sFile = $sTmpFolder.'/config-itop.php';
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copy($sSourceConfigFile, $sFile);
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$aRet[] = $sFile;
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}
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$sDeltaFile = APPROOT.'data/'.utils::GetCurrentEnvironment().'.delta.xml';
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if (file_exists($sDeltaFile))
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{
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$sFile = $sTmpFolder.'/delta.xml';
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copy($sDeltaFile, $sFile);
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$aRet[] = $sFile;
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}
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$sExtraDir = APPROOT.'data/'.utils::GetCurrentEnvironment().'-modules/';
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if (is_dir($sExtraDir))
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{
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$sModules = utils::GetCurrentEnvironment().'-modules';
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$sFile = $sTmpFolder.'/'.$sModules;
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SetupUtils::copydir($sExtraDir, $sFile);
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$aRet[] = $sFile;
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}
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$sDataFile = $sTmpFolder.'/itop-dump.sql';
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$this->DoBackup($sDataFile);
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$aRet[] = $sDataFile;
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return $aRet;
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}
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protected static function EscapeShellArg($sValue)
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{
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// Note: See comment from the 23-Apr-2004 03:30 in the PHP documentation
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// It suggests to rely on pctnl_* function instead of using escapeshellargs
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return escapeshellarg($sValue);
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}
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/**
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* Create a backup file
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*/
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public function DoBackup($sBackupFileName)
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{
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$sHost = self::EscapeShellArg($this->sDBHost);
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$sUser = self::EscapeShellArg($this->sDBUser);
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$sPwd = self::EscapeShellArg($this->sDBPwd);
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$sDBName = self::EscapeShellArg($this->sDBName);
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// Just to check the connection to the DB (better than getting the retcode of mysqldump = 1)
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$this->DBConnect();
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$sTables = '';
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if ($this->sDBSubName != '')
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{
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// This instance of iTop uses a prefix for the tables, so there may be other tables in the database
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// Let's explicitely list all the tables and views to dump
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$aTables = $this->EnumerateTables();
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if (count($aTables) == 0)
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{
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// No table has been found with the given prefix
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throw new BackupException("No table has been found with the given prefix");
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}
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$aEscapedTables = array();
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foreach($aTables as $sTable)
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{
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$aEscapedTables[] = self::EscapeShellArg($sTable);
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}
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$sTables = implode(' ', $aEscapedTables);
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}
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$this->LogInfo("Starting backup of $this->sDBHost/$this->sDBName(suffix:'$this->sDBSubName')");
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$sMySQLBinDir = utils::ReadParam('mysql_bindir', $this->sMySQLBinDir, true);
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if (empty($sMySQLBinDir))
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{
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$sMySQLDump = 'mysqldump';
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}
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else
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{
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$sMySQLDump = '"'.$sMySQLBinDir.'/mysqldump"';
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}
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// Store the results in a temporary file
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$sTmpFileName = self::EscapeShellArg($sBackupFileName);
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if (is_null($this->iDBPort))
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{
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$sPortOption = '';
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}
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else
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{
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$sPortOption = '--port='.$this->iDBPort.' ';
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}
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// Delete the file created by tempnam() so that the spawned process can write into it (Windows/IIS)
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@unlink($sBackupFileName);
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// Note: opt implicitely sets lock-tables... which cancels the benefit of single-transaction!
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// skip-lock-tables compensates and allows for writes during a backup
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$sCommand = "$sMySQLDump --opt --skip-lock-tables --default-character-set=utf8 --add-drop-database --single-transaction --host=$sHost $sPortOption --user=$sUser --password=$sPwd --result-file=$sTmpFileName $sDBName $sTables 2>&1";
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$sCommandDisplay = "$sMySQLDump --opt --skip-lock-tables --default-character-set=utf8 --add-drop-database --single-transaction --host=$sHost $sPortOption --user=xxxxx --password=xxxxx --result-file=$sTmpFileName $sDBName $sTables";
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// Now run the command for real
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$this->LogInfo("Executing command: $sCommandDisplay");
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$aOutput = array();
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$iRetCode = 0;
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exec($sCommand, $aOutput, $iRetCode);
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foreach($aOutput as $sLine)
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{
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$this->LogInfo("mysqldump said: $sLine");
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}
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if ($iRetCode != 0)
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{
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// Cleanup residual output (Happens with Error 2020: Got packet bigger than 'maxallowedpacket' bytes...)
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if (file_exists($sBackupFileName))
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{
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unlink($sBackupFileName);
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}
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$this->LogError("Failed to execute: $sCommandDisplay. The command returned:$iRetCode");
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foreach($aOutput as $sLine)
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{
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$this->LogError("mysqldump said: $sLine");
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}
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if (count($aOutput) == 1)
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{
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$sMoreInfo = trim($aOutput[0]);
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}
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else
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{
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$sMoreInfo = "Check the log files '".realpath(APPROOT.'/log/setup.log or error.log')."' for more information.";
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}
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throw new BackupException("Failed to execute mysqldump: ".$sMoreInfo);
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}
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}
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/**
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* Helper to create a ZIP out of several files
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*/
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protected function DoZip($aFiles, $sZipArchiveFile)
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{
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foreach($aFiles as $aFile)
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{
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$sFile = $aFile['source'];
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if (!is_file($sFile) && !is_dir($sFile))
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{
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throw new BackupException("File '$sFile' does not exist or could not be read");
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}
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}
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// Make sure the target path exists
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$sZipDir = dirname($sZipArchiveFile);
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SetupUtils::builddir($sZipDir);
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$oZip = new ZipArchiveEx();
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$res = $oZip->open($sZipArchiveFile, ZipArchive::CREATE | ZipArchive::OVERWRITE);
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if ($res === TRUE)
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{
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foreach($aFiles as $aFile)
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{
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if (is_dir($aFile['source']))
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{
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$oZip->addDir($aFile['source'], $aFile['dest']);
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}
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else
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{
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$oZip->addFile($aFile['source'], $aFile['dest']);
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}
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}
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if ($oZip->close())
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{
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$this->LogInfo("Archive: $sZipArchiveFile created");
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}
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else
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{
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$this->LogError("Failed to save zip archive: $sZipArchiveFile");
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throw new BackupException("Failed to save zip archive: $sZipArchiveFile");
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}
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}
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else
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{
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$this->LogError("Failed to create zip archive: $sZipArchiveFile.");
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throw new BackupException("Failed to create zip archive: $sZipArchiveFile.");
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}
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}
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/**
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* Helper to download the file directly from the browser
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*/
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public function DownloadBackup($sFile)
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{
|
|
header('Content-Description: File Transfer');
|
|
header('Content-Type: multipart/x-zip');
|
|
header('Content-Disposition: inline; filename="'.basename($sFile).'"');
|
|
header('Expires: 0');
|
|
header('Cache-Control: must-revalidate');
|
|
header('Pragma: public');
|
|
header('Content-Length: '.filesize($sFile));
|
|
readfile($sFile);
|
|
}
|
|
|
|
/**
|
|
* Helper to open a Database connection
|
|
*/
|
|
protected function DBConnect()
|
|
{
|
|
if (is_null($this->iDBPort))
|
|
{
|
|
$oMysqli = new mysqli($this->sDBHost, $this->sDBUser, $this->sDBPwd);
|
|
}
|
|
else
|
|
{
|
|
$oMysqli = new mysqli($this->sDBHost, $this->sDBUser, $this->sDBPwd, '', $this->iDBPort);
|
|
}
|
|
if ($oMysqli->connect_errno)
|
|
{
|
|
$sHost = is_null($this->iDBPort) ? $this->sDBHost : $this->sDBHost.' on port '.$this->iDBPort;
|
|
throw new BackupException("Cannot connect to the MySQL server '$sHost' (".$oMysqli->connect_errno.") ".$oMysqli->connect_error);
|
|
}
|
|
if (!$oMysqli->select_db($this->sDBName))
|
|
{
|
|
throw new BackupException("The database '$this->sDBName' does not seem to exist");
|
|
}
|
|
return $oMysqli;
|
|
}
|
|
|
|
/**
|
|
* Helper to enumerate the tables of the database
|
|
*/
|
|
protected function EnumerateTables()
|
|
{
|
|
$oMysqli = $this->DBConnect();
|
|
if ($this->sDBSubName != '')
|
|
{
|
|
$oResult = $oMysqli->query("SHOW TABLES LIKE '{$this->sDBSubName}%'");
|
|
}
|
|
else
|
|
{
|
|
$oResult = $oMysqli->query("SHOW TABLES");
|
|
}
|
|
if (!$oResult)
|
|
{
|
|
throw new BackupException("Failed to execute the SHOW TABLES query: ".$oMysqli->error);
|
|
}
|
|
$aTables = array();
|
|
while ($aRow = $oResult->fetch_row())
|
|
{
|
|
$aTables[] = $aRow[0];
|
|
}
|
|
return $aTables;
|
|
}
|
|
}
|
|
}
|
|
|
|
class TarGzArchive implements BackupArchive
|
|
{
|
|
/*
|
|
* @var ArchiveTar
|
|
*/
|
|
protected $oArchive;
|
|
/*
|
|
* string[]
|
|
*/
|
|
protected $aFiles = null;
|
|
|
|
public function __construct($sFile)
|
|
{
|
|
$this->oArchive = new ArchiveTar($sFile);
|
|
}
|
|
|
|
/**
|
|
* @param string $sFile
|
|
* @return bool <b>TRUE</b> if the file is present, <b>FALSE</b> otherwise.
|
|
*/
|
|
public function hasFile($sFile)
|
|
{
|
|
// remove leading and tailing /
|
|
$sFile = trim($sFile, "/ \t\n\r\0\x0B");
|
|
if ($this->aFiles === null)
|
|
{
|
|
// Initial load
|
|
$this->buildFileList();
|
|
}
|
|
foreach($this->aFiles as $aArchFile)
|
|
{
|
|
if ($aArchFile['filename'] == $sFile)
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* @param string $sDirectory
|
|
* @return bool <b>TRUE</b> if the directory is present, <b>FALSE</b> otherwise.
|
|
*/
|
|
public function hasDir($sDirectory)
|
|
{
|
|
// remove leading and tailing /
|
|
$sDirectory = trim($sDirectory, "/ \t\n\r\0\x0B");
|
|
if ($this->aFiles === null)
|
|
{
|
|
// Initial load
|
|
$this->buildFileList();
|
|
}
|
|
foreach($this->aFiles as $aArchFile)
|
|
{
|
|
if (($aArchFile['typeflag'] == 5) && ($aArchFile['filename'] == $sDirectory))
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* @param string $sDestinationDir
|
|
* @param string $sArchiveFile
|
|
* @return bool <b>TRUE</b> on success or <b>FALSE</b> on failure.
|
|
*/
|
|
public function extractFileTo($sDestinationDir, $sArchiveFile)
|
|
{
|
|
return $this->oArchive->extractList($sArchiveFile, $sDestinationDir);
|
|
}
|
|
|
|
/**
|
|
* Extract a whole directory from the archive.
|
|
* Usage: $oArchive->extractDirTo('/var/www/html/itop/data', '/production-modules/')
|
|
* @param string $sDestinationDir
|
|
* @param string $sArchiveDir
|
|
* @return bool <b>TRUE</b> on success or <b>FALSE</b> on failure.
|
|
*/
|
|
public function extractDirTo($sDestinationDir, $sArchiveDir)
|
|
{
|
|
return $this->oArchive->extractList($sArchiveDir, $sDestinationDir);
|
|
}
|
|
|
|
/**
|
|
* Returns the entry contents using its name
|
|
* @param string $name Name of the entry
|
|
* @param int $length unused.
|
|
* @param int $flags unused.
|
|
* @return string the contents of the entry on success or <b>FALSE</b> on failure.
|
|
*/
|
|
public function getFromName($name, $length = 0, $flags = null)
|
|
{
|
|
return $this->oArchive->extractInString($name);
|
|
}
|
|
|
|
/**
|
|
*/
|
|
protected function buildFileList()
|
|
{
|
|
$this->aFiles = $this->oArchive->listContent();
|
|
}
|
|
}
|
|
|