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#!/usr/bin/env php
<?php
/**
* Script to refresh the pending alarm times for the next alarm instance.
*
* @package davical
* @subpackage alarms
* @author Andrew McMillan <andrew@morphoss.com>
* @copyright Morphoss Ltd
* @license http://gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
$script_file = __FILE__;
chdir(str_replace('/scripts/refresh-alarms.php','/htdocs',$script_file));
$_SERVER['SERVER_NAME'] = 'localhost';
/**
* Call with something like e.g.:
*
* scripts/refresh_alarms.php -p P1800D -f P1D
*
*/
$args = (object) array();
$args->debug = false;
$args->set_last = false;
$args->slow_query_threshold = false; // Won't set higher threshold by default
$args->future = 'P400D';
$args->near_past = 'P1D';
$debugging = null;
function parse_arguments() {
global $args;
$opts = getopt( 'f:p:q:s:d:lh' );
foreach( $opts AS $k => $v ) {
switch( $k ) {
case 'f': $args->future = $v; break;
case 'p': $args->near_past = $v; break;
case 'q': $args->slow_query_threshold = $v; break;
case 's': $_SERVER['SERVER_NAME'] = $v; break;
case 'd': $args->debug = true; $debugging = explode(',',$v); break;
case 'l': $args->set_last = true; break;
case 'h': usage(); break;
default: $args->{$k} = $v;
}
}
}
function usage() {
echo <<<USAGE
Usage:
refresh-alarms.php [-s server.domain.tld] [other options]
-s <server> The servername to be used to identify the DAViCal configuration file.
-p <duration> Near past period to review for finding recently last instances: default 1 days ('P1D')
-f <duration> Future period to consider for finding future alarms: default ~5 years ('P2000D')
-l Try to set the 'last' alarm date in historical alarms
-q <secs> Warn about slow queries which take longer than this many seconds (use AWL default).
-d xxx Enable debugging where 'xxx' is a comma-separated list of debug subsystems
USAGE;
exit(0);
}
parse_arguments();
if ( $args->debug && is_array($debugging )) {
foreach( $debugging AS $v ) {
$c->dbg[$v] = 1;
}
}
$args->near_past = '-' . $args->near_past;
require_once("./always.php");
if ( $args->slow_query_threshold !== false ) {
$c->default_query_warning_threshold = $args->slow_query_threshold;
}
require_once('AwlQuery.php');
require_once('RRule.php');
require_once('vCalendar.php');
/**
* Essentially what we are doing is:
*
UPDATE calendar_alarm
SET next_trigger = (SELECT rrule_event_instances_range(
dtstart + icalendar_interval_to_SQL(replace(trigger,'TRIGGER:','')),
rrule,
current_timestamp, current_timestamp + '2 days'::interval,
1)
LIMIT 1)
FROM calendar_item
WHERE calendar_alarm.dav_id = calendar_item.dav_id
AND next_trigger is null
AND rrule IS NOT NULL
*/
$expand_range_start = new RepeatRuleDateTime(gmdate('Ymd\THis\Z'));
$expand_range_end = new RepeatRuleDateTime(gmdate('Ymd\THis\Z'));
$expand_range_end->modify( $args->future );
$earliest = clone($expand_range_start);
$earliest->modify( $args->near_past );
if ( $args->debug ) printf( "Looking for event instances between '%s' and '%s'\n", $earliest->UTC(), $expand_range_end->UTC() );
$sql = 'SELECT * FROM calendar_alarm JOIN calendar_item USING (dav_id) JOIN caldav_data USING (dav_id) WHERE rrule IS NOT NULL AND next_trigger IS NULL';
if ( $args->debug ) printf( "%s\n", $sql );
$qry = new AwlQuery( $sql );
if ( $qry->Exec() && $qry->rows() ) {
while( $alarm = $qry->Fetch() ) {
if ( $args->debug ) printf( "refresh: Processing alarm for '%s' based on '%s','%s', '%s'\n",
$alarm->dav_name, $alarm->dtstart, $alarm->rrule, $alarm->trigger );
$ic = new vComponent( $alarm->caldav_data );
$expanded = expand_event_instances( $ic, $earliest, $expand_range_end );
$expanded->MaskComponents( array( 'VEVENT'=>1, 'VTODO'=>1, 'VJOURNAL'=>1 ) );
$instances = $expanded->GetComponents();
$null = null;
$trigger = new vProperty(null, $null, $alarm->trigger );
$related = $trigger->GetParameterValue('RELATED');
$first = new RepeatRuleDateTime($alarm->dtstart);
$first->modify( $trigger->Value() );
$next = null;
$last = null;
foreach( $instances AS $k => $component ) {
$when = new RepeatRuleDateTime( $component->GetPValue('DTSTART') ); // a UTC value
if ( $args->debug ) printf( "refresh: Looking at event instance on '%s'\n", $when->UTC() );
if ( $related == 'END' ) {
$when->modify( $component->GetPValue('DURATION') );
}
$when->modify( $trigger->Value() );
if ( $when > $expand_range_start && $when < $expand_range_end && (!isset($next) || $when < $next) ) {
$next = clone($when);
}
if ( $args->set_last && (!isset($last) || $when > $last) ) {
$last = clone($when);
}
}
$trigger_type = $trigger->GetParameterValue('VALUE');
if ( $trigger_type == 'DATE' || $trigger_type == 'DATE-TIME' || preg_match('{^\d{8}T\d{6}Z?$}', $trigger->Value()) ) {
$first = new RepeatRuleDateTime($trigger);
if ( $first > $expand_range_start && (empty($next) || $first < $next ) )
$next = $first;
else if ( empty($next) ) {
if ( $args->set_last && (empty($last) || $first > $last) )
$last = $first;
}
}
if ( $args->set_last && !isset($last) && (!isset($next) || $next < $expand_range_start) ) {
$vc = new vCalendar( $alarm->caldav_data );
$range = getVCalendarRange($vc);
if ( isset($range->until) && $range->until < $earliest ) $last = $range->until;
}
if ( isset($next) && $next < $expand_range_end ) {
if ( $args->debug ) printf( "refresh: Found next alarm instance on '%s'\n", $next->UTC() );
$sql = 'UPDATE calendar_alarm SET next_trigger = :next WHERE dav_id = :id AND count = :count AND component = :component';
$update = new AwlQuery( $sql, array( ':next' => $next->UTC(), ':id' => $alarm->dav_id, ':count' => $alarm->count, ':component' => $alarm->component ) );
$update->Exec('refresh-alarms', __LINE__, __FILE__ );
}
else if ( $args->set_last && isset($last) && $last < $earliest ) {
if ( $args->debug ) printf( "refresh: Found past final alarm instance on '%s'\n", $last->UTC() );
$sql = 'UPDATE calendar_alarm SET next_trigger = :last WHERE dav_id = :id AND count = :count AND component = :component';
$update = new AwlQuery( $sql, array( ':last' => $last->UTC(), ':id' => $alarm->dav_id, ':count' => $alarm->count, ':component' => $alarm->component ) );
$update->Exec('refresh-alarms', __LINE__, __FILE__ );
}
else if ( $args->debug && isset($next) && $next < $expand_range_end ) {
printf( "refresh: Found next alarm instance on '%s' after '%s'\n", $next->UTC(), $expand_range_end->UTC() );
}
}
}
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