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<?php |
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/* |
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Copyright (c) 2013, Marius Cramer, pixcept KG |
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All rights reserved. |
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Redistribution and use in source and binary forms, with or without modification, |
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are permitted provided that the following conditions are met: |
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* Redistributions of source code must retain the above copyright notice, |
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this list of conditions and the following disclaimer. |
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* Redistributions in binary form must reproduce the above copyright notice, |
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this list of conditions and the following disclaimer in the documentation |
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and/or other materials provided with the distribution. |
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* Neither the name of ISPConfig nor the names of its contributors |
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may be used to endorse or promote products derived from this software without |
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specific prior written permission. |
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, |
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INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
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BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
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OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, |
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EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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class cronjob { |
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// default is every 5 minutes |
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protected $_schedule = '*/5 * * * *'; |
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// may a run be skipped? |
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protected $_no_skip = false; |
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// if true, this job is run when it is first recognized. If false, the next run is calculated from schedule on first run. |
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protected $_run_at_new = false; |
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protected $_last_run = null; |
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protected $_next_run = null; |
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private $_running = false; |
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/** return schedule */ |
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public function getSchedule() { |
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global $app, $conf; |
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$class = get_class($this); |
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switch ($class) { |
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case 'cronjob_backup': |
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$app->uses('ini_parser,getconf'); |
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$server_id = $conf['server_id']; |
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$server_conf = $app->getconf->get_server_config($server_id, 'server'); |
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if(isset($server_conf['backup_time']) && $server_conf['backup_time'] != ''){ |
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list($hour, $minute) = explode(':', $server_conf['backup_time']); |
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$schedule = $minute.' '.$hour.' * * *'; |
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} else { |
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$schedule = '0 0 * * *'; |
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} |
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break; |
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/*case 'cronjob_backup_mail': |
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$schedule = '1 0 * * *'; |
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break;*/ |
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default: |
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$schedule = $this->_schedule; |
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} |
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return $schedule; |
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} |
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/** run through cronjob sequence **/ |
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public function run() { |
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print "Called run() for class " . get_class($this) . "\n"; |
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print "Job has schedule: " . $this->getSchedule() . "\n"; |
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$this->onPrepare(); |
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$run_it = $this->onBeforeRun(); |
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if($run_it == true) { |
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$this->onRunJob(); |
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$this->onAfterRun(); |
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} |
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$this->onCompleted(); |
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return; |
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} |
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/* this function prepares some data for the job and sets next run time if first executed */ |
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protected function onPrepare() { |
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global $app; |
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print "Called onPrepare() for class " . get_class($this) . "\n"; |
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// check the run time and values for this job |
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// get previous run data |
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$data = $app->db->queryOneRecord("SELECT `last_run`, `next_run`, `running` FROM `sys_cron` WHERE `name` = ?", get_class($this)); |
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if($data) { |
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if($data['last_run']) $this->_last_run = $data['last_run']; |
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if($data['next_run']) $this->_next_run = $data['next_run']; |
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if($data['running'] == 1) $this->_running = true; |
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} |
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if(!$this->_next_run) { |
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if($this->_run_at_new == true) { |
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$this->_next_run = ISPConfigDateTime::dbtime(); // run now. |
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} else { |
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$app->cron->parseCronLine($this->getSchedule()); |
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$next_run = $app->cron->getNextRun(ISPConfigDateTime::dbtime()); |
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$this->_next_run = $next_run; |
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$app->db->query("REPLACE INTO `sys_cron` (`name`, `last_run`, `next_run`, `running`) VALUES (?, ?, ?, ?)", get_class($this), ($this->_last_run ? $this->_last_run : "#NULL#"), ($next_run === false ? "#NULL#" : $next_run . "'"), ($this->_running == true ? "1" : "0")); |
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} |
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} |
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} |
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/* this function checks if a cron job's next runtime is reached and returns true or false */ |
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protected function onBeforeRun() { |
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global $app; |
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print "Called onBeforeRun() for class " . get_class($this) . "\n"; |
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if($this->_running == true) return false; // job is still marked as running! |
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print "Jobs next run is " . $this->_next_run . "\n"; |
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$reached = ISPConfigDateTime::compare($this->_next_run, ISPConfigDateTime::dbtime()); |
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print "Date compare of " . ISPConfigDateTime::to_timestamp($this->_next_run) . " and " . ISPConfigDateTime::dbtime() . " is " . $reached . "\n"; |
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if($reached === false) return false; // error! |
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if($reached === -1) { |
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// next_run time not reached |
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return false; |
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} |
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// next_run time reached (reached === 0 or -1) |
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// calculare next run time based on last_run or current time |
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$app->cron->parseCronLine($this->getSchedule()); |
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if($this->_no_skip == true) { |
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// we need to calculare the next run based on the previous next_run, as we may not skip one. |
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$next_run = $app->cron->getNextRun($this->_next_run); |
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if($next_run === false) { |
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// we could not calculate next run, try it with current time |
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$next_run = $app->cron->getNextRun(ISPConfigDateTime::dbtime()); |
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} |
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} else { |
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// calculate next run based on current time |
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$next_run = $app->cron->getNextRun(ISPConfigDateTime::dbtime()); |
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} |
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print "Jobs next run is now " . $next_run . "\n"; |
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$app->db->query("REPLACE INTO `sys_cron` (`name`, `last_run`, `next_run`, `running`) VALUES (?, NOW(), ?, 1)", get_class($this), ($next_run === false ? "#NULL#" : $next_run)); |
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return true; |
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} |
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// child classes should override this! |
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protected function onRunJob() { |
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global $app; |
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print "Called onRun() for class " . get_class($this) . "\n"; |
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} |
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// child classes may override this! |
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protected function onAfterRun() { |
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global $app; |
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print "Called onAfterRun() for class " . get_class($this) . "\n"; |
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} |
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// child classes may NOT override this! |
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private function onCompleted() { |
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global $app; |
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print "Called onCompleted() for class " . get_class($this) . "\n"; |
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$app->db->query("UPDATE `sys_cron` SET `running` = 0 WHERE `name` = ?", get_class($this)); |
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} |
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} |
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?> |