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support for repeating events

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This commit is contained in:
Georg Ehrke 2011-11-12 22:02:04 +01:00
parent eea20e51d8
commit a303992d78
4 changed files with 799 additions and 36 deletions
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9
3rdparty/when/MIT-LICENSE.txt vendored Normal file
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@ -0,0 +1,9 @@
License
Copyright (c) 2010 Thomas Planer
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

725
3rdparty/when/When.php vendored Executable file
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<?php
/**
* Name: When
* Author: Thomas Planer <tplaner@gmail.com>
* Location: http://github.com/tplaner/When
* Created: September 2010
* Description: Determines the next date of recursion given an iCalendar "rrule" like pattern.
* Requirements: PHP 5.3+ - makes extensive use of the Date and Time library (http://us2.php.net/manual/en/book.datetime.php)
*/
class When
{
protected $frequency;
protected $start_date;
protected $try_date;
protected $end_date;
protected $gobymonth;
protected $bymonth;
protected $gobyweekno;
protected $byweekno;
protected $gobyyearday;
protected $byyearday;
protected $gobymonthday;
protected $bymonthday;
protected $gobyday;
protected $byday;
protected $gobysetpos;
protected $bysetpos;
protected $suggestions;
protected $count;
protected $counter;
protected $goenddate;
protected $interval;
protected $wkst;
protected $valid_week_days;
protected $valid_frequency;
/**
* __construct
*/
public function __construct()
{
$this->frequency = null;
$this->gobymonth = false;
$this->bymonth = range(1,12);
$this->gobymonthday = false;
$this->bymonthday = range(1,31);
$this->gobyday = false;
// setup the valid week days (0 = sunday)
$this->byday = range(0,6);
$this->gobyyearday = false;
$this->byyearday = range(0,366);
$this->gobysetpos = false;
$this->bysetpos = range(1,366);
$this->gobyweekno = false;
// setup the range for valid weeks
$this->byweekno = range(0,54);
$this->suggestions = array();
// this will be set if a count() is specified
$this->count = 0;
// how many *valid* results we returned
$this->counter = 0;
// max date we'll return
$this->end_date = new DateTime('9999-12-31');
// the interval to increase the pattern by
$this->interval = 1;
// what day does the week start on? (0 = sunday)
$this->wkst = 0;
$this->valid_week_days = array('SU', 'MO', 'TU', 'WE', 'TH', 'FR', 'SA');
$this->valid_frequency = array('SECONDLY', 'MINUTELY', 'HOURLY', 'DAILY', 'WEEKLY', 'MONTHLY', 'YEARLY');
}
/**
* @param DateTime|string $start_date of the recursion - also is the first return value.
* @param string $frequency of the recrusion, valid frequencies: secondly, minutely, hourly, daily, weekly, monthly, yearly
*/
public function recur($start_date, $frequency = "daily")
{
try
{
if(is_object($start_date))
{
$this->start_date = clone $start_date;
}
else
{
// timestamps within the RFC have a 'Z' at the end of them, remove this.
$start_date = trim($start_date, 'Z');
$this->start_date = new DateTime($start_date);
}
$this->try_date = clone $this->start_date;
}
catch(Exception $e)
{
throw new InvalidArgumentException('Invalid start date DateTime: ' . $e);
}
$this->freq($frequency);
return $this;
}
public function freq($frequency)
{
if(in_array(strtoupper($frequency), $this->valid_frequency))
{
$this->frequency = strtoupper($frequency);
}
else
{
throw new InvalidArgumentException('Invalid frequency type.');
}
return $this;
}
// accepts an rrule directly
public function rrule($rrule)
{
// strip off a trailing semi-colon
$rrule = trim($rrule, ";");
$parts = explode(";", $rrule);
foreach($parts as $part)
{
list($rule, $param) = explode("=", $part);
$rule = strtoupper($rule);
$param = strtoupper($param);
switch($rule)
{
case "FREQ":
$this->frequency = $param;
break;
case "UNTIL":
$this->until($param);
break;
case "COUNT":
$this->count($param);
break;
case "INTERVAL":
$this->interval($param);
break;
case "BYDAY":
$params = explode(",", $param);
$this->byday($params);
break;
case "BYMONTHDAY":
$params = explode(",", $param);
$this->bymonthday($params);
break;
case "BYYEARDAY":
$params = explode(",", $param);
$this->byyearday($params);
break;
case "BYWEEKNO":
$params = explode(",", $param);
$this->byweekno($params);
break;
case "BYMONTH":
$params = explode(",", $param);
$this->bymonth($params);
break;
case "BYSETPOS":
$params = explode(",", $param);
$this->bysetpos($params);
break;
case "WKST":
$this->wkst($param);
break;
}
}
return $this;
}
//max number of items to return based on the pattern
public function count($count)
{
$this->count = (int)$count;
return $this;
}
// how often the recurrence rule repeats
public function interval($interval)
{
$this->interval = (int)$interval;
return $this;
}
// starting day of the week
public function wkst($day)
{
switch($day)
{
case 'SU':
$this->wkst = 0;
break;
case 'MO':
$this->wkst = 1;
break;
case 'TU':
$this->wkst = 2;
break;
case 'WE':
$this->wkst = 3;
break;
case 'TH':
$this->wkst = 4;
break;
case 'FR':
$this->wkst = 5;
break;
case 'SA':
$this->wkst = 6;
break;
}
return $this;
}
// max date
public function until($end_date)
{
try
{
if(is_object($end_date))
{
$this->end_date = clone $end_date;
}
else
{
// timestamps within the RFC have a 'Z' at the end of them, remove this.
$end_date = trim($end_date, 'Z');
$this->end_date = new DateTime($end_date);
}
}
catch(Exception $e)
{
throw new InvalidArgumentException('Invalid end date DateTime: ' . $e);
}
return $this;
}
public function bymonth($months)
{
if(is_array($months))
{
$this->gobymonth = true;
$this->bymonth = $months;
}
return $this;
}
public function bymonthday($days)
{
if(is_array($days))
{
$this->gobymonthday = true;
$this->bymonthday = $days;
}
return $this;
}
public function byweekno($weeks)
{
$this->gobyweekno = true;
if(is_array($weeks))
{
$this->byweekno = $weeks;
}
return $this;
}
public function bysetpos($days)
{
$this->gobysetpos = true;
if(is_array($days))
{
$this->bysetpos = $days;
}
return $this;
}
public function byday($days)
{
$this->gobyday = true;
if(is_array($days))
{
$this->byday = array();
foreach($days as $day)
{
$len = strlen($day);
$as = '+';
// 0 mean no occurence is set
$occ = 0;
if($len == 3)
{
$occ = substr($day, 0, 1);
}
if($len == 4)
{
$as = substr($day, 0, 1);
$occ = substr($day, 1, 1);
}
if($as == '-')
{
$occ = '-' . $occ;
}
else
{
$occ = '+' . $occ;
}
$day = substr($day, -2, 2);
switch($day)
{
case 'SU':
$this->byday[] = $occ . 'SU';
break;
case 'MO':
$this->byday[] = $occ . 'MO';
break;
case 'TU':
$this->byday[] = $occ . 'TU';
break;
case 'WE':
$this->byday[] = $occ . 'WE';
break;
case 'TH':
$this->byday[] = $occ . 'TH';
break;
case 'FR':
$this->byday[] = $occ . 'FR';
break;
case 'SA':
$this->byday[] = $occ . 'SA';
break;
}
}
}
return $this;
}
public function byyearday($days)
{
$this->gobyyearday = true;
if(is_array($days))
{
$this->byyearday = $days;
}
return $this;
}
// this creates a basic list of dates to "try"
protected function create_suggestions()
{
switch($this->frequency)
{
case "YEARLY":
$interval = 'year';
break;
case "MONTHLY":
$interval = 'month';
break;
case "WEEKLY":
$interval = 'week';
break;
case "DAILY":
$interval = 'day';
break;
case "HOURLY":
$interval = 'hour';
break;
case "MINUTELY":
$interval = 'minute';
break;
case "SECONDLY":
$interval = 'second';
break;
}
$month_day = $this->try_date->format('j');
$month = $this->try_date->format('n');
$year = $this->try_date->format('Y');
$timestamp = $this->try_date->format('H:i:s');
if($this->gobysetpos)
{
if($this->try_date == $this->start_date)
{
$this->suggestions[] = clone $this->try_date;
}
else
{
if($this->gobyday)
{
foreach($this->bysetpos as $_pos)
{
$tmp_array = array();
$_mdays = range(1, date('t',mktime(0,0,0,$month,1,$year)));
foreach($_mdays as $_mday)
{
$date_time = new DateTime($year . '-' . $month . '-' . $_mday . ' ' . $timestamp);
$occur = ceil($_mday / 7);
$day_of_week = $date_time->format('l');
$dow_abr = strtoupper(substr($day_of_week, 0, 2));
// set the day of the month + (positive)
$occur = '+' . $occur . $dow_abr;
$occur_zero = '+0' . $dow_abr;
// set the day of the month - (negative)
$total_days = $date_time->format('t') - $date_time->format('j');
$occur_neg = '-' . ceil(($total_days + 1)/7) . $dow_abr;
$day_from_end_of_month = $date_time->format('t') + 1 - $_mday;
if(in_array($occur, $this->byday) || in_array($occur_zero, $this->byday) || in_array($occur_neg, $this->byday))
{
$tmp_array[] = clone $date_time;
}
}
if($_pos > 0)
{
$this->suggestions[] = clone $tmp_array[$_pos - 1];
}
else
{
$this->suggestions[] = clone $tmp_array[count($tmp_array) + $_pos];
}
}
}
}
}
elseif($this->gobyyearday)
{
foreach($this->byyearday as $_day)
{
if($_day >= 0)
{
$_day--;
$_time = strtotime('+' . $_day . ' days', mktime(0, 0, 0, 1, 1, $year));
$this->suggestions[] = new Datetime(date('Y-m-d', $_time) . ' ' . $timestamp);
}
else
{
$year_day_neg = 365 + $_day;
$leap_year = $this->try_date->format('L');
if($leap_year == 1)
{
$year_day_neg = 366 + $_day;
}
$_time = strtotime('+' . $year_day_neg . ' days', mktime(0, 0, 0, 1, 1, $year));
$this->suggestions[] = new Datetime(date('Y-m-d', $_time) . ' ' . $timestamp);
}
}
}
// special case because for years you need to loop through the months too
elseif($this->gobyday && $interval == "year")
{
foreach($this->bymonth as $_month)
{
// this creates an array of days of the month
$_mdays = range(1, date('t',mktime(0,0,0,$_month,1,$year)));
foreach($_mdays as $_mday)
{
$date_time = new DateTime($year . '-' . $_month . '-' . $_mday . ' ' . $timestamp);
// get the week of the month (1, 2, 3, 4, 5, etc)
$week = $date_time->format('W');
if($date_time >= $this->start_date && in_array($week, $this->byweekno))
{
$this->suggestions[] = clone $date_time;
}
}
}
}
elseif($interval == "day")
{
$this->suggestions[] = clone $this->try_date;
}
elseif($interval == "week")
{
$this->suggestions[] = clone $this->try_date;
if($this->gobyday)
{
$week_day = $this->try_date->format('w');
$days_in_month = $this->try_date->format('t');
$overflow_count = 1;
$_day = $month_day;
$run = true;
while($run)
{
$_day++;
if($_day <= $days_in_month)
{
$tmp_date = new DateTime($year . '-' . $month . '-' . $_day . ' ' . $timestamp);
}
else
{
//$tmp_month = $month+1;
$tmp_date = new DateTime($year . '-' . $month . '-' . $overflow_count . ' ' . $timestamp);
$tmp_date->modify('+1 month');
$overflow_count++;
}
$week_day = $tmp_date->format('w');
if($this->try_date == $this->start_date)
{
if($week_day == $this->wkst)
{
$this->try_date = clone $tmp_date;
$this->try_date->modify('-7 days');
$run = false;
}
}
if($week_day != $this->wkst)
{
$this->suggestions[] = clone $tmp_date;
}
else
{
$run = false;
}
}
}
}
elseif($this->gobyday || $interval == "month")
{
$_mdays = range(1, date('t',mktime(0,0,0,$month,1,$year)));
foreach($_mdays as $_mday)
{
$date_time = new DateTime($year . '-' . $month . '-' . $_mday . ' ' . $timestamp);
// get the week of the month (1, 2, 3, 4, 5, etc)
$week = $date_time->format('W');
if($date_time >= $this->start_date && in_array($week, $this->byweekno))
{
$this->suggestions[] = clone $date_time;
}
}
}
elseif($this->gobymonth)
{
foreach($this->bymonth as $_month)
{
$date_time = new DateTime($year . '-' . $_month . '-' . $month_day . ' ' . $timestamp);
if($date_time >= $this->start_date)
{
$this->suggestions[] = clone $date_time;
}
}
}
else
{
$this->suggestions[] = clone $this->try_date;
}
if($interval == "month")
{
$this->try_date->modify('last day of ' . $this->interval . ' ' . $interval);
}
else
{
$this->try_date->modify($this->interval . ' ' . $interval);
}
}
protected function valid_date($date)
{
$year = $date->format('Y');
$month = $date->format('n');
$day = $date->format('j');
$year_day = $date->format('z') + 1;
$year_day_neg = -366 + $year_day;
$leap_year = $date->format('L');
if($leap_year == 1)
{
$year_day_neg = -367 + $year_day;
}
// this is the nth occurence of the date
$occur = ceil($day / 7);
$week = $date->format('W');
$day_of_week = $date->format('l');
$dow_abr = strtoupper(substr($day_of_week, 0, 2));
// set the day of the month + (positive)
$occur = '+' . $occur . $dow_abr;
$occur_zero = '+0' . $dow_abr;
// set the day of the month - (negative)
$total_days = $date->format('t') - $date->format('j');
$occur_neg = '-' . ceil(($total_days + 1)/7) . $dow_abr;
$day_from_end_of_month = $date->format('t') + 1 - $day;
if(in_array($month, $this->bymonth) &&
(in_array($occur, $this->byday) || in_array($occur_zero, $this->byday) || in_array($occur_neg, $this->byday)) &&
in_array($week, $this->byweekno) &&
(in_array($day, $this->bymonthday) || in_array(-$day_from_end_of_month, $this->bymonthday)) &&
(in_array($year_day, $this->byyearday) || in_array($year_day_neg, $this->byyearday)))
{
return true;
}
else
{
return false;
}
}
// return the next valid DateTime object which matches the pattern and follows the rules
public function next()
{
// check the counter is set
if($this->count !== 0)
{
if($this->counter >= $this->count)
{
return false;
}
}
// create initial set of suggested dates
if(count($this->suggestions) === 0)
{
$this->create_suggestions();
}
// loop through the suggested dates
while(count($this->suggestions) > 0)
{
// get the first one on the array
$try_date = array_shift($this->suggestions);
// make sure the date doesn't exceed the max date
if($try_date > $this->end_date)
{
return false;
}
// make sure it falls within the allowed days
if($this->valid_date($try_date) === true)
{
$this->counter++;
return $try_date;
}
else
{
// we might be out of suggested days, so load some more
if(count($this->suggestions) === 0)
{
$this->create_suggestions();
}
}
}
}
}

97
apps/calendar/ajax/events.php
View file

@ -6,40 +6,10 @@
* See the COPYING-README file.
*/
require_once ("../../../lib/base.php");
if(!OC_USER::isLoggedIn()) {
die("<script type=\"text/javascript\">document.location = oc_webroot;</script>");
}
OC_JSON::checkAppEnabled('calendar');
require_once ('../../../lib/base.php');
require_once('../../../3rdparty/when/When.php');
$start = DateTime::createFromFormat('U', $_GET['start']);
$end = DateTime::createFromFormat('U', $_GET['end']);
$events = OC_Calendar_Object::allInPeriod($_GET['calendar_id'], $start, $end);
$user_timezone = OC_Preferences::getValue(OC_USER::getUser(), "calendar", "timezone", "Europe/London");
$return = array();
foreach($events as $event)
{
$return_event = array();
$object = OC_Calendar_Object::parse($event['calendardata']);
$vevent = $object->VEVENT;
$dtstart = $vevent->DTSTART;
$dtend = OC_Calendar_Object::getDTEndFromVEvent($vevent);
$start_dt = $dtstart->getDateTime();
$end_dt = $dtend->getDateTime();
if ($dtstart->getDateType() == Sabre_VObject_Element_DateTime::DATE)
{
$return_event['allDay'] = true;
$return_event['start'] = $start_dt->format('Y-m-d');
$end_dt->modify('-1 sec');
$return_event['end'] = $end_dt->format('Y-m-d');
}else{
$start_dt->setTimezone(new DateTimeZone($user_timezone));
$end_dt->setTimezone(new DateTimeZone($user_timezone));
$return_event['start'] = $start_dt->format('Y-m-d H:i:s');
$return_event['end'] = $end_dt->format('Y-m-d H:i:s');
$return_event['allDay'] = false;
}
function addoutput($event, $vevent, $return_event){
$return_event['id'] = (int)$event['id'];
$return_event['title'] = $event['summary'];
$return_event['description'] = isset($vevent->DESCRIPTION)?$vevent->DESCRIPTION->value:'';
@ -50,6 +20,65 @@ foreach($events as $event)
$lastmodified = 0;
}
$return_event['lastmodified'] = (int)$lastmodified;
$return[] = $return_event;
return $return_event;
}
OC_JSON::checkLoggedIn();
OC_JSON::checkAppEnabled('calendar');
$start = DateTime::createFromFormat('U', $_GET['start']);
$end = DateTime::createFromFormat('U', $_GET['end']);
$events = OC_Calendar_Object::allInPeriod($_GET['calendar_id'], $start, $end);
$user_timezone = OC_Preferences::getValue(OC_USER::getUser(), "calendar", "timezone", "Europe/London");
$return = array();
foreach($events as $event){
$object = OC_Calendar_Object::parse($event['calendardata']);
$vevent = $object->VEVENT;
$dtstart = $vevent->DTSTART;
$dtend = OC_Calendar_Object::getDTEndFromVEvent($vevent);
$return_event = array();
$start_dt = $dtstart->getDateTime();
$end_dt = $dtend->getDateTime();
if ($dtstart->getDateType() == Sabre_VObject_Element_DateTime::DATE){
$return_event['allDay'] = true;
}else{
$return_event['allDay'] = false;
}
//Repeating Events
if($event['repeating'] == 1){
$duration = (double) $end_dt->format('U') - (double) $start_dt->format('U');
$r = new When();
$r->recur((string) $dtstart)->rrule((string) $vevent->RRULE);
while($result = $r->next()){
if($result->format('U') > $_GET['end']){
break;
}
if($return_event['allDay'] == true){
$return_event['start'] = $result->format('Y-m-d');
$return_event['end'] = date('Y-m-d', $result->format('U') + $duration--);
}else{
$return_event['start'] = $result->format('Y-m-d H:i:s');
$return_event['end'] = date('Y-m-d H:i:s', $result->format('U') + $duration);
}
$return[] = addoutput($event, $vevent, $return_event);
}
}else{
$return_event = array();
if ($dtstart->getDateType() == Sabre_VObject_Element_DateTime::DATE){
$return_event['allDay'] = true;
$return_event['start'] = $start_dt->format('Y-m-d');
$end_dt->modify('-1 sec');
$return_event['end'] = $end_dt->format('Y-m-d');
}else{
$start_dt->setTimezone(new DateTimeZone($user_timezone));
$end_dt->setTimezone(new DateTimeZone($user_timezone));
$return_event['start'] = $start_dt->format('Y-m-d H:i:s');
$return_event['end'] = $end_dt->format('Y-m-d H:i:s');
$return_event['allDay'] = false;
}
$return[] = addoutput($event, $vevent, $return_event);
}
}
OC_JSON::encodedPrint($return);
?>

4
apps/calendar/lib/object.php
View file

@ -43,12 +43,12 @@ class OC_Calendar_Object{
public static function allInPeriod($id, $start, $end){
$stmt = OC_DB::prepare( 'SELECT * FROM *PREFIX*calendar_objects WHERE calendarid = ?'
.' AND ((startdate >= ? AND startdate <= ? AND repeating = 0)'
.' OR (startdate <= ? AND enddate >= ? AND repeating = 1))' );
.' OR (startdate <= ? AND repeating = 1))' );
$start = self::getUTCforMDB($start);
$end = self::getUTCforMDB($end);
$result = $stmt->execute(array($id,
$start, $end,
$end, $start));
$end));
$calendarobjects = array();
while( $row = $result->fetchRow()){