forked from extern/egroupware
623 lines
17 KiB
PHP
623 lines
17 KiB
PHP
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<?php
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/**************************************************************************\
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* phpGroupWare API - Timed Asynchron Services for phpGroupWare *
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* Written by Ralf Becker <RalfBecker@outdoor-training.de> *
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* Class for creating cron-job like timed calls of phpGroupWare methods *
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* -------------------------------------------------------------------------*
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* This library is part of the phpGroupWare API *
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* http://www.phpgroupware.org/ *
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* ------------------------------------------------------------------------ *
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* This library is free software; you can redistribute it and/or modify it *
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* under the terms of the GNU Lesser General Public License as published by *
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* the Free Software Foundation; either version 2.1 of the License, *
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* or any later version. *
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* This library is distributed in the hope that it will be useful, but *
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* WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. *
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* See the GNU Lesser General Public License for more details. *
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* You should have received a copy of the GNU Lesser General Public License *
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* along with this library; if not, write to the Free Software Foundation, *
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* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *
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\**************************************************************************/
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/* $Id$ */
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class asyncservice
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{
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var $public_functions = array(
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'set_timer' => True,
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'check_run' => True,
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'cancel_timer' => True,
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'read' => True,
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'install' => True,
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'installed' => True,
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'test' => True
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);
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var $php = '';
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var $crontab = '';
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var $db;
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var $db_table = 'phpgw_async';
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function asyncservice()
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{
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$this->db = $GLOBALS['phpgw']->db;
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}
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/*!
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@function set_timer
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@abstract calculates the next run of the timer and puts that with the rest of the data in the db
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@syntax set_timer($times,$id,$method,$data)
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@param $times unix timestamp or array('min','hour','dow','day','month','year') with execution time. \
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Repeated events are possible to shedule by setting the array only partly, eg. \
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array('day' => 1) for first day in each month 0am or array('min' => '* /5', 'hour' => '9-17') \
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for every 5mins in the time from 9am to 5pm.
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@param $id unique id to cancel the request later, if necessary. Should be in a form like \
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eg. '<app><id>X' where id is the internal id of app and X might indicate the action.
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@param $method Method to be called via ExecMethod($method,$data). $method has the form \
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'<app>.<class>.<public function>'.
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@param $data This data is passed back when the method is called. It might simply be an \
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integer id, but it can also be a complete array.
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@Returns False if $id already exists, else True
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*/
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function set_timer($times,$id,$method,$data)
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{
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if (empty($id) || empty($method) || $this->read($id) ||
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!($next = $this->next_run($times)))
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{
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return False;
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}
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$job = array(
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'id' => $id,
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'next' => $next,
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'times' => $times,
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'method' => $method,
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'data' => $data
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);
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$this->write($job);
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return True;
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}
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/*!
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@function next_run
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@abstract calculates the next execution time for $time
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@syntax next_run($time)
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@param $times unix timestamp or array('year'=>$year,'month'=>$month,'dow'=>$dow,'day'=>$day,'hour'=>$hour,'min'=>$min) \
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with execution time. Repeated execution is possible to shedule by setting the array only partly, \
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eg. array('day' => 1) for first day in each month 0am or array('min' => '/5', 'hour' => '9-17') \
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for every 5mins in the time from 9am to 5pm. All not set units before the smallest one set, \
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are taken into account as every possible value, all after as the smallest possible value.
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@returns a unix timestamp of the next execution time or False if no more executions
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*/
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function next_run($times,$debug=False)
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{
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$now = time();
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// $times is unix timestamp => if it's not expired return it, else False
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//
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if (!is_array($times))
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{
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$next = intval($times);
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return $next > $now ? $next : False;
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}
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// If an array is given, we have to enumerate the possible times first
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//
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$units = array(
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'year' => 'Y',
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'month' => 'm',
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'day' => 'd',
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'dow' => 'w',
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'hour' => 'H',
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'min' => 'i'
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);
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$max_unit = array(
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'min' => 59,
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'hour' => 23,
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'dow' => 6,
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'day' => 31,
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'month' => 12,
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'year' => date('Y')+10 // else */[0-9] would never stop returning numbers
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);
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$min_unit = array(
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'min' => 0,
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'hour' => 0,
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'dow' => 0,
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'day' => 1,
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'month' => 1,
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'year' => date('Y')
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);
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// get the number of the first and last pattern set in $times,
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// as empty patterns get enumerated before the the last pattern and
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// get set to the minimum after
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//
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$n = $first_set = $last_set = 0;
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foreach($units as $u => $date_pattern)
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{
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++$n;
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if (isset($times[$u]))
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{
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$last_set = $n;
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if (!$first_set)
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{
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$first_set = $n;
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}
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}
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}
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// now we go through all units and enumerate all patterns and not set patterns
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// (as descript above), enumerations are arrays with unit-values as keys
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//
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$n = 0;
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foreach($units as $u => $date_pattern)
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{
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++$n;
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//echo "<p>$u: isset(times[$u]="; print_r($times[$u]); echo ")=".(isset($times[$u])?'True':'False')."</p>\n";
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if (isset($times[$u]))
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{
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$time = explode(',',$times[$u]);
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$times[$u] = array();
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foreach($time as $t)
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{
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if (strstr($t,'-') !== False && strstr($t,'/') === False)
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{
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list($min,$max) = $arr = explode('-',$t);
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if (count($arr) != 2 || !is_numeric($min) || !is_numeric($max) || $min > $max)
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{
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if ($debug) echo "<p>Syntax error in $u='$t', allowed is 'min-max', min <= max, min='$min', max='$max'</p>\n";
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return False;
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}
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for ($i = intval($min); $i <= $max; ++$i)
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{
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$times[$u][$i] = True;
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}
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}
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else
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{
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list($one,$inc) = $arr = explode('/',$t);
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if (!(is_numeric($one) && count($arr) == 1 ||
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count($arr) == 2 && is_numeric($inc)))
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{
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if ($debug) echo "<p>Syntax error in $u='$t', allowed is a number or '{*|range}/inc', inc='$inc'</p>\n";
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return False;
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}
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if (count($arr) == 1)
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{
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$times[$u][intval($one)] = True;
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}
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else
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{
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list($min,$max) = $arr = explode('-',$one);
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if (empty($one) || $one == '*')
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{
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$min = $min_unit[$u];
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$max = $max_unit[$u];
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}
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elseif (count($arr) != 2 || $min > $max)
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{
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if ($debug) echo "<p>Syntax error in $u='$t', allowed is '{*|min-max}/inc', min='$min',max='$max', inc='$inc'</p>\n";
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return False;
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}
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for ($i = $min; $i <= $max; $i += $inc)
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{
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$times[$u][$i] = True;
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}
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}
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}
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}
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}
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elseif ($n < $last_set) // => empty gets enumerated
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{
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for ($i = $min_unit[$u]; $i <= $max_unit[$u]; ++$i)
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{
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$times[$u][$i] = True;
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}
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}
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else // => empty is min-value
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{
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$times[$u][$min_unit[$u]] = True;
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}
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}
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//echo "enumerated times=<pre>"; print_r($times); echo "</pre>\n";
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// now we have the times enumerated, lets find the first not expired one
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//
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$found = array();
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while (!isset($found['min']))
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{
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$found = array();
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$future = False;
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$n = 0;
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foreach($units as $u => $date_pattern)
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{
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$unit_now = $u != 'dow' ? intval(date($date_pattern)) :
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intval(date($date_pattern,mktime(12,0,0,$found['month'],$found['day'],$found['year'])));
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foreach($times[$u] as $unit_value => $nul)
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{
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switch($u)
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{
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case 'dow':
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$valid = $unit_value == $unit_now;
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break;
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case 'min':
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$valid = $future || $unit_value > $unit_now;
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break;
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default:
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$valid = $future || $unit_value >= $unit_now;
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break;
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}
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if ($valid && ($u != $next || $unit_value > $over)) // valid and not over
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{
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$found[$u] = $unit_value;
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$future = $future || $unit_value > $unit_now;
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break;
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}
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}
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if (!isset($found[$u])) // we have to try the next one, if it exists
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{
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$next = array_keys($units);
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if (!isset($next[$n-1]))
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{
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//echo "<p>Nothing found, exiting !!!</p>\n";
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return False;
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}
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$next = $next[$n-1];
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$over = $found[$next];
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//echo "<p>Have to try the next $next, $u's are over for $next=$over !!!</p>\n";
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break;
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}
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$n++;
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}
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}
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//echo "<p>next="; print_r($found); echo "</p>\n";
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return mktime($found['hour'],$found['min'],0,$found['month'],$found['day'],$found['year']);
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}
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/*!
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@function cancel_timer
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|
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@abstract cancels a timer
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|
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@syntax cancel_timer($id)
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@param $id has to be the one used to set it.
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@returns True if the timer exists and is not expired.
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*/
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function cancel_timer($id)
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{
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return $this->delete($id);
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|
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}
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|
|
|
||
|
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/*!
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@function check_run
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@abstract checks if there are any jobs ready to run (timer expired) and executes them
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|
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*/
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|
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function check_run()
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{
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|
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if (!($jobs = $this->read()))
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{
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return False;
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|
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}
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|
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foreach($jobs as $id => $job)
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{
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ExecMethod($job['method'],$job['data']);
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|
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|
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if ($job['next'] = $this->next_run($job['times']))
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{
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$this->write($job,True);
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|
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}
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|
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else // no further runs
|
||
|
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{
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|
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$this->delete($job['id']);
|
||
|
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}
|
||
|
|
}
|
||
|
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return count($jobs);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*!
|
||
|
|
@function read
|
||
|
|
@abstract reads all matching db-rows / jobs
|
||
|
|
@syntax reay($id=0)
|
||
|
|
@param $id =0 reads all expired rows / jobs ready to run\
|
||
|
|
!= 0 reads all rows/jobs matching $id (sql-wildcards '%' and '_' can be used)
|
||
|
|
@returns db-rows / jobs as array or False if no matches
|
||
|
|
*/
|
||
|
|
function read($id=0)
|
||
|
|
{
|
||
|
|
$id = $this->db->db_addslashes($id);
|
||
|
|
if (strpos($id,'%') !== False || strpos($id,'_') !== False)
|
||
|
|
{
|
||
|
|
$where = "id LIKE '$id'";
|
||
|
|
}
|
||
|
|
elseif (!$id)
|
||
|
|
{
|
||
|
|
$where = 'next<='.time();
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
$where = "id='$id'";
|
||
|
|
}
|
||
|
|
$this->db->query($sql="SELECT * FROM $this->db_table WHERE $where",__LINE__,__FILE__);
|
||
|
|
|
||
|
|
$jobs = array();
|
||
|
|
while ($this->db->next_record())
|
||
|
|
{
|
||
|
|
$id = $this->db->f('id');
|
||
|
|
|
||
|
|
$jobs[$id] = array(
|
||
|
|
'id' => $id,
|
||
|
|
'next' => $this->db->f('next'),
|
||
|
|
'times' => unserialize($this->db->f('times')),
|
||
|
|
'method' => $this->db->f('method'),
|
||
|
|
'data' => unserialize($this->db->f('data'))
|
||
|
|
);
|
||
|
|
}
|
||
|
|
if (!count($jobs))
|
||
|
|
{
|
||
|
|
return False;
|
||
|
|
}
|
||
|
|
return $jobs;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*!
|
||
|
|
@function write
|
||
|
|
@abstract write a job / db-row to the db
|
||
|
|
@syntax write($job,$exists = False)
|
||
|
|
@param $job db-row as array
|
||
|
|
@param $exits if True, we do an update, else we check if update or insert necesary
|
||
|
|
*/
|
||
|
|
function write($job,$exists = False)
|
||
|
|
{
|
||
|
|
$job['times'] = $this->db->db_addslashes(serialize($job['times']));
|
||
|
|
$job['data'] = $this->db->db_addslashes(serialize($job['data']));
|
||
|
|
|
||
|
|
if ($exists || $this->read($job['id']))
|
||
|
|
{
|
||
|
|
$this->db->query("UPDATE $this->db_table SET next=$job[next],times='$job[times]',".
|
||
|
|
"method='$job[method]',data='$job[data]' WHERE id='$job[id]'",__FILE__,__LINE__);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
$this->db->query("INSERT INTO $this->db_table (id,next,times,method,data) VALUES ".
|
||
|
|
"('$job[id]',$job[next],'$job[times]','$job[method]','$job[data]')",__FILE__,__LINE__);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/*!
|
||
|
|
@function delete
|
||
|
|
@abstract delete db-row / job with $id
|
||
|
|
@returns False if $id not found else True
|
||
|
|
*/
|
||
|
|
function delete($id)
|
||
|
|
{
|
||
|
|
$this->db->query("DELETE FROM $this->db_table WHERE id='$id'",__LINE__,__FILE__);
|
||
|
|
|
||
|
|
return $this->db->affected_rows();
|
||
|
|
}
|
||
|
|
|
||
|
|
function find_binarys()
|
||
|
|
{
|
||
|
|
static $run = False;
|
||
|
|
if ($run)
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
$run = True;
|
||
|
|
|
||
|
|
if (substr(php_uname(), 0, 7) == "Windows")
|
||
|
|
{
|
||
|
|
// ToDo: find php-cgi on windows
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
$binarys = array('php' => '/usr/bin/php','crontab' => '/usr/bin/crontab');
|
||
|
|
foreach ($binarys as $name => $path)
|
||
|
|
{
|
||
|
|
$this->$name = $path; // a reasonable default for *nix
|
||
|
|
if (!is_executable($this->$name))
|
||
|
|
{
|
||
|
|
if ($fd = popen('/bin/sh -c "which '.$name.'"','r'))
|
||
|
|
{
|
||
|
|
$this->$name = fgets($fd,256);
|
||
|
|
@pclose($fd);
|
||
|
|
}
|
||
|
|
if ($pos = strpos($this->$name,"\n"))
|
||
|
|
{
|
||
|
|
$this->$name = substr($this->$name,0,$pos);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
//echo "<p>$name = '".$this->$name."'</p>\n";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
/*!
|
||
|
|
@function installed
|
||
|
|
@abstract checks if phpgwapi/cron/asyncservices.php is installed as cron-job
|
||
|
|
@syntax installed()
|
||
|
|
@returns the times asyncservices are run (normaly 'min'=>'* /5') or False if not installed
|
||
|
|
@note Not implemented for Windows at the moment, always returns False
|
||
|
|
*/
|
||
|
|
function installed()
|
||
|
|
{
|
||
|
|
if (substr(php_uname(), 0, 7) == "Windows") {
|
||
|
|
False;
|
||
|
|
}
|
||
|
|
$this->find_binarys();
|
||
|
|
|
||
|
|
$times = False;
|
||
|
|
if (($crontab = popen('/bin/sh -c "'.$this->crontab.' -l" 2>&1','r')) !== False)
|
||
|
|
{
|
||
|
|
while ($line = fgets($crontab,256))
|
||
|
|
{
|
||
|
|
if ($line[0] != '#' && strstr($line,'asyncservices.php'))
|
||
|
|
{
|
||
|
|
$time = explode(' ',$line);
|
||
|
|
$cron_units = array('min','hour','day','month','dow');
|
||
|
|
foreach($cron_units as $n => $u)
|
||
|
|
{
|
||
|
|
if ($time[$n] != '*')
|
||
|
|
{
|
||
|
|
$times[$u] = $time[$n];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$times['cronline'] = $line;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
@pclose($crontab);
|
||
|
|
}
|
||
|
|
return $times;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*!
|
||
|
|
@function insall
|
||
|
|
@abstract installs /phpgwapi/cron/asyncservices.php as cron-job
|
||
|
|
@syntax install($times)
|
||
|
|
@param $times array with keys 'min','hour','day','month','dow', not set is equal to '*'
|
||
|
|
@returns the times asyncservices are run or False if they are not installed
|
||
|
|
@note Not implemented for Windows at the moment, always dies with an error-message
|
||
|
|
*/
|
||
|
|
function install($times)
|
||
|
|
{
|
||
|
|
if (substr(php_uname(), 0, 7) == "Windows") {
|
||
|
|
die ("Sorry, no automatic on Windows at the moment !!!\n");
|
||
|
|
}
|
||
|
|
$this->find_binarys();
|
||
|
|
|
||
|
|
if (($crontab = popen('/bin/sh -c "'.$this->crontab.' -" 2>&1','w')) !== False)
|
||
|
|
{
|
||
|
|
$cron_units = array('min','hour','day','month','dow');
|
||
|
|
foreach($cron_units as $cu)
|
||
|
|
{
|
||
|
|
$cronline .= (isset($times[$cu]) ? $times[$cu] : '*') . ' ';
|
||
|
|
}
|
||
|
|
$cronline .= $this->php.' -q '.PHPGW_SERVER_ROOT . '/phpgwapi/cron/asyncservices.php'."\n";
|
||
|
|
//echo "<p>Installing: '$cronline'</p>\n";
|
||
|
|
fwrite($crontab,$cronline);
|
||
|
|
@pclose($crontab);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
//echo "<p>Error: /usr/bin/crontab not found !!!</p>";
|
||
|
|
return False;
|
||
|
|
}
|
||
|
|
return $this->installed();
|
||
|
|
}
|
||
|
|
|
||
|
|
function test($data)
|
||
|
|
{
|
||
|
|
echo "asyncservice::test: data =\n";
|
||
|
|
|
||
|
|
print_r($data);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!isset($GLOBALS['phpgw_info']))
|
||
|
|
{
|
||
|
|
$GLOBALS['phpgw_info']['flags'] = array(
|
||
|
|
'currentapp' => 'login'
|
||
|
|
);
|
||
|
|
include('../../header.inc.php');
|
||
|
|
|
||
|
|
$async = new asyncservice;
|
||
|
|
$units = array(
|
||
|
|
'year' => 'Year',
|
||
|
|
'month' => 'Month',
|
||
|
|
'day' => 'Day',
|
||
|
|
'dow' => 'Day of week',
|
||
|
|
'hour' => 'Hour',
|
||
|
|
'min' => 'Minute'
|
||
|
|
);
|
||
|
|
|
||
|
|
if ($_POST['send'] || $_POST['test'] || $_POST['cancel'] || $_POST['install'])
|
||
|
|
{
|
||
|
|
$times = array();
|
||
|
|
foreach($units as $u => $ulabel)
|
||
|
|
{
|
||
|
|
if (!empty($_POST[$u]))
|
||
|
|
{
|
||
|
|
$times[$u] = $_POST[$u];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$next = $async->next_run($times,True);
|
||
|
|
|
||
|
|
echo "<p>async::next_run(";print_r($times);echo")=".($next === False ? 'False':"'$next'=".date('D(w) d.m.Y H:i',$next))."</p>\n";
|
||
|
|
|
||
|
|
if ($_POST['test'])
|
||
|
|
{
|
||
|
|
if (!$async->set_timer($times,'test','phpgwapi.asyncservice.test','Hello World!!!'))
|
||
|
|
{
|
||
|
|
echo "<p>Error setting timer, maybe there's one already running !!!</p>\n";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ($_POST['cancel'])
|
||
|
|
{
|
||
|
|
if (!$async->cancel_timer('test'))
|
||
|
|
{
|
||
|
|
echo "<p>Error canceling timer, maybe there's none set !!!</p>\n";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ($_POST['install'])
|
||
|
|
{
|
||
|
|
if ($install = $async->install($times))
|
||
|
|
{
|
||
|
|
echo "<p>Installing: '$install[cronline]'</p>\n";
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
echo "<p>Error: $async->crontab not found or other error !!!</p>";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
echo '<form action="'.$_SERVER['PHP_SELF'].'" method="POST">'."\n";
|
||
|
|
foreach ($units as $u => $ulabel)
|
||
|
|
{
|
||
|
|
echo "$ulabel: <input name=\"$u\" value=\"$times[$u]\" size=5> \n";
|
||
|
|
}
|
||
|
|
echo "<input type=\"submit\" name=\"send\" value=\"Calculate next run\">\n";
|
||
|
|
echo "<input type=\"submit\" name=\"test\" value=\"Start TestJob!\">\n";
|
||
|
|
echo "<input type=\"submit\" name=\"cancel\" value=\"Cancel TestJob!\">\n";
|
||
|
|
echo "<p><b>crontab:</b> \n";
|
||
|
|
|
||
|
|
if ($installed = $async->installed())
|
||
|
|
{
|
||
|
|
echo "$installed[cronline]</p>";
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
echo "$async->crontab not found or asyncservices not installed !!!</p>";
|
||
|
|
}
|
||
|
|
echo "<input type=\"submit\" name=\"install\" value=\"Install crontab\">\n";
|
||
|
|
|
||
|
|
echo "<p><b>jobs:</b></p>\n";
|
||
|
|
if ($jobs = $async->read('%'))
|
||
|
|
{
|
||
|
|
echo "<table border=1>\n<tr>\n<th>Id</th><th>Next run</th><th>Times</th><th>Method</th><th>Data</th></tr>\n";
|
||
|
|
foreach($jobs as $job)
|
||
|
|
{
|
||
|
|
echo "<tr>\n<td>$job[id]</td><td>".date('Y/m/d H:i',$job['next'])."</td><td>";
|
||
|
|
print_r($job['times']);
|
||
|
|
echo "</td><td>$job[method]</td><td>";
|
||
|
|
print_r($job['data']);
|
||
|
|
echo "</td></tr>\n";
|
||
|
|
}
|
||
|
|
echo "</table>\n";
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
echo "<p>No jobs in the database !!!</p>\n";
|
||
|
|
}
|
||
|
|
echo "</form>\n";
|
||
|
|
}
|