mirror of
https://github.com/Combodo/iTop.git
synced 2026-02-13 07:24:13 +01:00
407 lines
12 KiB
PHP
407 lines
12 KiB
PHP
<?php
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// Copyright (C) 2010-2016 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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/**
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* Heart beat of the application (process asynchron tasks such as broadcasting email)
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*
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* @copyright Copyright (C) 2010-2016 Combodo SARL
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* @license http://opensource.org/licenses/AGPL-3.0
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*/
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if (!defined('__DIR__')) define('__DIR__', dirname(__FILE__));
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require_once(__DIR__.'/../approot.inc.php');
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require_once(APPROOT.'/application/application.inc.php');
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require_once(APPROOT.'/application/nicewebpage.class.inc.php');
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require_once(APPROOT.'/application/webpage.class.inc.php');
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require_once(APPROOT.'/application/clipage.class.inc.php');
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require_once(APPROOT.'/core/background.inc.php');
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$sConfigFile = APPCONF.ITOP_DEFAULT_ENV.'/'.ITOP_CONFIG_FILE;
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if (!file_exists($sConfigFile))
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{
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echo "iTop is not yet installed. Exiting...\n";
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exit(-1);
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}
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require_once(APPROOT.'/application/startup.inc.php');
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$oCtx = new ContextTag('CRON');
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function ReadMandatoryParam($oP, $sParam, $sSanitizationFilter = 'parameter')
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{
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$sValue = utils::ReadParam($sParam, null, true /* Allow CLI */, $sSanitizationFilter);
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if (is_null($sValue))
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{
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$oP->p("ERROR: Missing argument '$sParam'\n");
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UsageAndExit($oP);
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}
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return trim($sValue);
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}
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function UsageAndExit($oP)
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{
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$bModeCLI = utils::IsModeCLI();
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if ($bModeCLI)
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{
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$oP->p("USAGE:\n");
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$oP->p("php cron.php --auth_user=<login> --auth_pwd=<password> [--param_file=<file>] [--verbose=1] [--debug=1] [--status_only=1]\n");
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}
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else
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{
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$oP->p("Optional parameters: verbose, param_file, status_only\n");
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}
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$oP->output();
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exit -2;
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}
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/**
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* @param iProcess $oProcess
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* @param \BackgroundTask $oTask
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* @param DateTime $oStartDate
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* @param int $iTimeLimit
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*
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* @return string
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*/
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function RunTask($oProcess, BackgroundTask $oTask, $oStartDate, $iTimeLimit)
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{
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$oNow = new DateTime();
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$fStart = microtime(true);
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try
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{
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$sMessage = $oProcess->Process($iTimeLimit);
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}
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catch(Exception $e)
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{
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$sMessage = 'Processing failed with message: '.$e->getMessage();
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}
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$fDuration = microtime(true) - $fStart;
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if ($oTask->Get('total_exec_count') == 0)
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{
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// First execution
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$oTask->Set('first_run_date', $oNow->format('Y-m-d H:i:s'));
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}
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$oTask->ComputeDurations($fDuration); // does increment the counter and compute statistics
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$oTask->Set('latest_run_date', $oNow->format('Y-m-d H:i:s'));
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$oRefClass = new ReflectionClass(get_class($oProcess));
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if ($oRefClass->implementsInterface('iScheduledProcess'))
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{
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// Schedules process do repeat at specific moments
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$oPlannedStart = $oProcess->GetNextOccurrence();
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}
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else
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{
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// Background processes do repeat periodically
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$oPlannedStart = new DateTime($oTask->Get('latest_run_date'));
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// Let's assume that the task was started exactly when planned so that the schedule does no shift each time
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// this allows to schedule a task everyday "around" 11:30PM for example
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$oPlannedStart->modify('+'.$oProcess->GetPeriodicity().' seconds');
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$oEnd = new DateTime();
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if ($oPlannedStart->format('U') < $oEnd->format('U'))
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{
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// Huh, next planned start is already in the past, shift it of the periodicity !
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$oPlannedStart = $oEnd->modify('+'.$oProcess->GetPeriodicity().' seconds');
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}
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}
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$oTask->Set('next_run_date', $oPlannedStart->format('Y-m-d H:i:s'));
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$oTask->DBUpdate();
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return $sMessage;
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}
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/**
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* @param CLIPage|WebPage $oP
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* @param iProcess[] $aProcesses
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* @param boolean $bVerbose
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*/
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function CronExec($oP, $aProcesses, $bVerbose)
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{
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$iStarted = time();
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$iMaxDuration = MetaModel::GetConfig()->Get('cron_max_execution_time');
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$iTimeLimit = $iStarted + $iMaxDuration;
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if ($bVerbose)
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{
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$oP->p("Planned duration = $iMaxDuration seconds");
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}
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// Reset the next planned execution to take into account new settings
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$oSearch = new DBObjectSearch('BackgroundTask');
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$oTasks = new DBObjectSet($oSearch);
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while($oTask = $oTasks->Fetch())
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{
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$sTaskClass = $oTask->Get('class_name');
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$oRefClass = new ReflectionClass($sTaskClass);
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$oNow = new DateTime();
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if($oRefClass->implementsInterface('iScheduledProcess') && (($oTask->Get('status') != 'active') || ($oTask->Get('next_run_date') > $oNow->format('Y-m-d H:i:s'))))
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{
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if ($bVerbose)
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{
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$oP->p("Resetting the next run date for $sTaskClass");
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}
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$oProcess = $aProcesses[$sTaskClass];
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$oNextOcc = $oProcess->GetNextOccurrence();
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$oTask->Set('next_run_date', $oNextOcc->format('Y-m-d H:i:s'));
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$oTask->DBUpdate();
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}
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}
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$iCronSleep = MetaModel::GetConfig()->Get('cron_sleep');
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$oSearch = new DBObjectSearch('BackgroundTask');
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while (time() < $iTimeLimit)
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{
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$oTasks = new DBObjectSet($oSearch);
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$aTasks = array();
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while($oTask = $oTasks->Fetch())
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{
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$aTasks[$oTask->Get('class_name')] = $oTask;
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}
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foreach ($aProcesses as $oProcess)
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{
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$sTaskClass = get_class($oProcess);
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$oNow = new DateTime();
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if (!array_key_exists($sTaskClass, $aTasks))
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{
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// New entry, let's create a new BackgroundTask record, and plan the first execution
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$oTask = new BackgroundTask();
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$oTask->Set('class_name', get_class($oProcess));
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$oTask->Set('total_exec_count', 0);
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$oTask->Set('min_run_duration', 99999.999);
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$oTask->Set('max_run_duration', 0);
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$oTask->Set('average_run_duration', 0);
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$oRefClass = new ReflectionClass($sTaskClass);
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if ($oRefClass->implementsInterface('iScheduledProcess'))
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{
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$oNextOcc = $oProcess->GetNextOccurrence();
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$oTask->Set('next_run_date', $oNextOcc->format('Y-m-d H:i:s'));
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}
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else
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{
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// Background processes do start asap, i.e. "now"
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$oTask->Set('next_run_date', $oNow->format('Y-m-d H:i:s'));
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}
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if ($bVerbose)
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{
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$oP->p('Creating record for: '.$sTaskClass);
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$oP->p('First execution planned at: '.$oTask->Get('next_run_date'));
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}
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$oTask->DBInsert();
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$aTasks[$oTask->Get('class_name')] = $oTask;
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}
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if( ($aTasks[$sTaskClass]->Get('status') == 'active') && ($aTasks[$sTaskClass]->Get('next_run_date') <= $oNow->format('Y-m-d H:i:s')))
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{
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// Run the task and record its next run time
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if ($bVerbose)
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{
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$oP->p(">> === ".$oNow->format('Y-m-d H:i:s').sprintf(" Starting:%-'=40s", ' '.$sTaskClass.' '));
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}
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$sMessage = RunTask($oProcess, $aTasks[$sTaskClass], $oNow, $iTimeLimit);
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if ($bVerbose)
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{
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if(!empty($sMessage))
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{
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$oP->p("$sTaskClass: $sMessage");
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}
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$oEnd = new DateTime();
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$oP->p("<< === ".$oEnd->format('Y-m-d H:i:s').sprintf(" End of: %-'=40s", ' '.$sTaskClass.' '));
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}
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}
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else
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{
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// will run later
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if (($aTasks[$sTaskClass]->Get('status') == 'active') && $bVerbose)
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{
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$oP->p("Skipping asynchronous task: $sTaskClass until ".$aTasks[$sTaskClass]->Get('next_run_date'));
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}
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}
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}
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if ($bVerbose)
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{
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$oP->p("Sleeping");
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}
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sleep($iCronSleep);
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}
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if ($bVerbose)
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{
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$oP->p("Reached normal execution time limit (exceeded by ".(time()-$iTimeLimit)."s)");
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}
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}
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function DisplayStatus($oP)
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{
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$oSearch = new DBObjectSearch('BackgroundTask');
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$oTasks = new DBObjectSet($oSearch);
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$oP->p('+---------------------------+---------+---------------------+---------------------+--------+-----------+');
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$oP->p('| Task Class | Status | Last Run | Next Run | Nb Run | Avg. Dur. |');
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$oP->p('+---------------------------+---------+---------------------+---------------------+--------+-----------+');
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while($oTask = $oTasks->Fetch())
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{
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$sTaskName = $oTask->Get('class_name');
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$sStatus = $oTask->Get('status');
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$sLastRunDate = $oTask->Get('latest_run_date');
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$sNextRunDate = $oTask->Get('next_run_date');
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$iNbRun = (int)$oTask->Get('total_exec_count');
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$sAverageRunTime = $oTask->Get('average_run_duration');
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$oP->p(sprintf('| %1$-25.25s | %2$-7s | %3$-19s | %4$-19s | %5$6d | %6$7s s |', $sTaskName, $sStatus, $sLastRunDate, $sNextRunDate, $iNbRun, $sAverageRunTime));
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}
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$oP->p('+---------------------------+---------+---------------------+---------------------+--------+-----------+');
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}
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////////////////////////////////////////////////////////////////////////////////
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//
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// Main
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//
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set_time_limit(0); // Some background actions may really take long to finish (like backup)
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if (utils::IsModeCLI())
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{
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$oP = new CLIPage("iTop - CRON");
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}
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else
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{
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$oP = new WebPage("iTop - CRON");
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}
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try
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{
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utils::UseParamFile();
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}
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catch(Exception $e)
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{
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$oP->p("Error: ".$e->GetMessage());
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$oP->output();
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exit -2;
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}
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if (utils::IsModeCLI())
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{
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// Next steps:
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// specific arguments: 'csvfile'
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//
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$sAuthUser = ReadMandatoryParam($oP, 'auth_user', 'raw_data');
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$sAuthPwd = ReadMandatoryParam($oP, 'auth_pwd', 'raw_data');
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if (UserRights::CheckCredentials($sAuthUser, $sAuthPwd))
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{
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UserRights::Login($sAuthUser); // Login & set the user's language
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}
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else
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{
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$oP->p("Access wrong credentials ('$sAuthUser')");
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$oP->output();
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exit -1;
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}
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}
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else
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{
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$_SESSION['login_mode'] = 'basic';
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require_once(APPROOT.'/application/loginwebpage.class.inc.php');
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LoginWebPage::DoLogin(); // Check user rights and prompt if needed
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}
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if (!UserRights::IsAdministrator())
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{
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$oP->p("Access restricted to administrators");
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$oP->Output();
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exit -1;
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}
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// Enumerate classes implementing BackgroundProcess
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//
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$aProcesses = array();
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foreach(get_declared_classes() as $sPHPClass)
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{
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$oRefClass = new ReflectionClass($sPHPClass);
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$oExtensionInstance = null;
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if ($oRefClass->implementsInterface('iProcess'))
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{
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if (is_null($oExtensionInstance))
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{
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$oExecInstance = new $sPHPClass;
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}
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$aProcesses[$sPHPClass] = $oExecInstance;
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}
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}
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$bVerbose = utils::ReadParam('verbose', false, true /* Allow CLI */);
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$bDebug = utils::ReadParam('debug', false, true /* Allow CLI */);
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if ($bVerbose)
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{
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$aDisplayProcesses = array();
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foreach ($aProcesses as $oExecInstance)
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{
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$aDisplayProcesses[] = get_class($oExecInstance);
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}
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$sDisplayProcesses = implode(', ', $aDisplayProcesses);
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$oP->p("Background processes: ".$sDisplayProcesses);
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}
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if (utils::ReadParam('status_only', false, true /* Allow CLI */))
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{
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// Display status and exit
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DisplayStatus($oP);
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exit(0);
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}
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require_once(APPROOT.'core/mutex.class.inc.php');
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$oP->p("Starting: ".time().' ('.date('Y-m-d H:i:s').')');
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try
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{
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$oConfig = utils::GetConfig();
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$oMutex = new iTopMutex('cron');
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if ($oMutex->TryLock())
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{
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// Note: testing this now in case some of the background processes forces the read-only mode for a while
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// in that case it is better to exit with the check on reentrance (mutex)
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if (!MetaModel::DBHasAccess(ACCESS_ADMIN_WRITE))
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{
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$oP->p("A database maintenance is ongoing (read-only mode even for admins).");
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$oP->Output();
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exit -1;
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}
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CronExec($oP, $aProcesses, $bVerbose);
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$oMutex->Unlock();
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}
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else
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{
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// Exit silently
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$oP->p("Already running...");
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}
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}
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catch (Exception $e)
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{
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$oP->p("ERROR: '".$e->getMessage()."'");
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if ($bDebug)
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{
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// Might contain verb parameters such a password...
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$oP->p($e->getTraceAsString());
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}
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}
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$oP->p("Exiting: ".time().' ('.date('Y-m-d H:i:s').')');
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$oP->Output();
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?>
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