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author | Haakon Meland Eriksen <haakon.eriksen@far.no> | 2015-12-14 18:55:43 +0100 |
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committer | Haakon Meland Eriksen <haakon.eriksen@far.no> | 2015-12-14 18:55:43 +0100 |
commit | 3b1ab5e79cbbf2a8f65cb4dc388e2257a3e857af (patch) | |
tree | 84b87fb47a27035afd2a354d11c36e8259f4c18e /library/ical.php | |
parent | 565126a888d70dce853a2351b698bbc0695f0ba9 (diff) | |
parent | dcf7946673fd57325fc848df8f8cea7a84cc35b6 (diff) | |
download | volse-hubzilla-3b1ab5e79cbbf2a8f65cb4dc388e2257a3e857af.tar.gz volse-hubzilla-3b1ab5e79cbbf2a8f65cb4dc388e2257a3e857af.tar.bz2 volse-hubzilla-3b1ab5e79cbbf2a8f65cb4dc388e2257a3e857af.zip |
Merge remote-tracking branch 'upstream/master'
Diffstat (limited to 'library/ical.php')
-rw-r--r-- | library/ical.php | 379 |
1 files changed, 0 insertions, 379 deletions
diff --git a/library/ical.php b/library/ical.php deleted file mode 100644 index 6bb26bad8..000000000 --- a/library/ical.php +++ /dev/null @@ -1,379 +0,0 @@ -<?php -/** - * This PHP-Class should only read a iCal-File (*.ics), parse it and give an - * array with its content. - * - * PHP Version 5 - * - * @category Parser - * @package Ics-parser - * @author Martin Thoma <info@martin-thoma.de> - * @license http://www.opensource.org/licenses/mit-license.php MIT License - * @version SVN: <svn_id> - * @link http://code.google.com/p/ics-parser/ - * @example $ical = new ical('MyCal.ics'); - * print_r( $ical->events() ); - */ - -/** - * This example demonstrates how the Ics-Parser should be used. - * - * PHP Version 5 - * - * @category Example - * @package Ics-parser - * @author Martin Thoma <info@martin-thoma.de> - * @license http://www.opensource.org/licenses/mit-license.php MIT License - * @version SVN: <svn_id> - * @link http://code.google.com/p/ics-parser/ - * @example $ical = new ical('MyCal.ics'); - * print_r( $ical->get_event_array() ); - -require 'class.iCalReader.php'; - -$ical = new ICal('MyCal.ics'); -$events = $ical->events(); - -$date = $events[0]['DTSTART']; -echo "The ical date: "; -echo $date; -echo "<br/>"; - -echo "The Unix timestamp: "; -echo $ical->iCalDateToUnixTimestamp($date); -echo "<br/>"; - -echo "The number of events: "; -echo $ical->event_count; -echo "<br/>"; - -echo "The number of todos: "; -echo $ical->todo_count; -echo "<br/>"; -echo "<hr/><hr/>"; - -foreach ($events as $event) { - echo "SUMMARY: ".$event['SUMMARY']."<br/>"; - echo "DTSTART: ".$event['DTSTART']." - UNIX-Time: ".$ical->iCalDateToUnixTimestamp($event['DTSTART'])."<br/>"; - echo "DTEND: ".$event['DTEND']."<br/>"; - echo "DTSTAMP: ".$event['DTSTAMP']."<br/>"; - echo "UID: ".$event['UID']."<br/>"; - echo "CREATED: ".$event['CREATED']."<br/>"; - echo "DESCRIPTION: ".$event['DESCRIPTION']."<br/>"; - echo "LAST-MODIFIED: ".$event['LAST-MODIFIED']."<br/>"; - echo "LOCATION: ".$event['LOCATION']."<br/>"; - echo "SEQUENCE: ".$event['SEQUENCE']."<br/>"; - echo "STATUS: ".$event['STATUS']."<br/>"; - echo "TRANSP: ".$event['TRANSP']."<br/>"; - echo "<hr/>"; -} - - (end example) - * - * - */ - -// error_reporting(E_ALL); - -/** - * This is the iCal-class - * - * @category Parser - * @package Ics-parser - * @author Martin Thoma <info@martin-thoma.de> - * @license http://www.opensource.org/licenses/mit-license.php MIT License - * @link http://code.google.com/p/ics-parser/ - * - * @param {string} filename The name of the file which should be parsed - * @constructor - */ -class ICal -{ - /* How many ToDos are in this ical? */ - public /** @type {int} */ $todo_count = 0; - - /* How many events are in this ical? */ - public /** @type {int} */ $event_count = 0; - - /* The parsed calendar */ - public /** @type {Array} */ $cal; - - /* Which keyword has been added to cal at last? */ - private /** @type {string} */ $_lastKeyWord; - - /** - * Creates the iCal-Object - * - * @param {string} $filename The path to the iCal-file - * - * @return Object The iCal-Object - */ - public function __construct($filename) - { - if (!$filename) { - return false; - } - - $lines = file($filename, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES); - if (stristr($lines[0], 'BEGIN:VCALENDAR') === false) { - return false; - } else { - // TODO: Fix multiline-description problem (see http://tools.ietf.org/html/rfc2445#section-4.8.1.5) - foreach ($lines as $line) { - $line = trim($line); - $add = $this->keyValueFromString($line); - if ($add === false) { - $this->addCalendarComponentWithKeyAndValue($type, false, $line); - continue; - } - - list($keyword, $value) = $add; - - switch ($line) { - // http://www.kanzaki.com/docs/ical/vtodo.html - case "BEGIN:VTODO": - $this->todo_count++; - $type = "VTODO"; - break; - - // http://www.kanzaki.com/docs/ical/vevent.html - case "BEGIN:VEVENT": - //echo "vevent gematcht"; - $this->event_count++; - $type = "VEVENT"; - break; - - //all other special strings - case "BEGIN:VCALENDAR": - case "BEGIN:DAYLIGHT": - // http://www.kanzaki.com/docs/ical/vtimezone.html - case "BEGIN:VTIMEZONE": - case "BEGIN:STANDARD": - $type = $value; - break; - case "END:VTODO": // end special text - goto VCALENDAR key - case "END:VEVENT": - case "END:VCALENDAR": - case "END:DAYLIGHT": - case "END:VTIMEZONE": - case "END:STANDARD": - $type = "VCALENDAR"; - break; - default: - $this->addCalendarComponentWithKeyAndValue($type, - $keyword, - $value); - break; - } - } - return $this->cal; - } - } - - /** - * Add to $this->ical array one value and key. - * - * @param {string} $component This could be VTODO, VEVENT, VCALENDAR, ... - * @param {string} $keyword The keyword, for example DTSTART - * @param {string} $value The value, for example 20110105T090000Z - * - * @return {None} - */ - public function addCalendarComponentWithKeyAndValue($component, - $keyword, - $value) - { - if ($keyword == false) { - $keyword = $this->last_keyword; - switch ($component) { - case 'VEVENT': - $value = $this->cal[$component][$this->event_count - 1] - [$keyword].$value; - break; - case 'VTODO' : - $value = $this->cal[$component][$this->todo_count - 1] - [$keyword].$value; - break; - } - } - - if (stristr($keyword, "DTSTART") or stristr($keyword, "DTEND")) { - $keyword = explode(";", $keyword); - $keyword = $keyword[0]; - } - - switch ($component) { - case "VTODO": - $this->cal[$component][$this->todo_count - 1][$keyword] = $value; - //$this->cal[$component][$this->todo_count]['Unix'] = $unixtime; - break; - case "VEVENT": - $this->cal[$component][$this->event_count - 1][$keyword] = $value; - break; - default: - $this->cal[$component][$keyword] = $value; - break; - } - $this->last_keyword = $keyword; - } - - /** - * Get a key-value pair of a string. - * - * @param {string} $text which is like "VCALENDAR:Begin" or "LOCATION:" - * - * @return {array} array("VCALENDAR", "Begin") - */ - public function keyValueFromString($text) - { - preg_match("/([^:]+)[:]([\w\W]*)/", $text, $matches); - if (count($matches) == 0) { - return false; - } - $matches = array_splice($matches, 1, 2); - return $matches; - } - - /** - * Return Unix timestamp from ical date time format - * - * @param {string} $icalDate A Date in the format YYYYMMDD[T]HHMMSS[Z] or - * YYYYMMDD[T]HHMMSS - * - * @return {int} - */ - public function iCalDateToUnixTimestamp($icalDate) - { - $icalDate = str_replace('T', '', $icalDate); - $icalDate = str_replace('Z', '', $icalDate); - - $pattern = '/([0-9]{4})'; // 1: YYYY - $pattern .= '([0-9]{2})'; // 2: MM - $pattern .= '([0-9]{2})'; // 3: DD - $pattern .= '([0-9]{0,2})'; // 4: HH - $pattern .= '([0-9]{0,2})'; // 5: MM - $pattern .= '([0-9]{0,2})/'; // 6: SS - preg_match($pattern, $icalDate, $date); - - // Unix timestamp can't represent dates before 1970 - if ($date[1] <= 1970) { - return false; - } - // Unix timestamps after 03:14:07 UTC 2038-01-19 might cause an overflow - // if 32 bit integers are used. - $timestamp = mktime((int)$date[4], - (int)$date[5], - (int)$date[6], - (int)$date[2], - (int)$date[3], - (int)$date[1]); - return $timestamp; - } - - /** - * Returns an array of arrays with all events. Every event is an associative - * array and each property is an element it. - * - * @return {array} - */ - public function events() - { - $array = $this->cal; - return $array['VEVENT']; - } - - /** - * Returns a boolean value whether thr current calendar has events or not - * - * @return {boolean} - */ - public function hasEvents() - { - return ( count($this->events()) > 0 ? true : false ); - } - - /** - * Returns false when the current calendar has no events in range, else the - * events. - * - * Note that this function makes use of a UNIX timestamp. This might be a - * problem on January the 29th, 2038. - * See http://en.wikipedia.org/wiki/Unix_time#Representing_the_number - * - * @param {boolean} $rangeStart Either true or false - * @param {boolean} $rangeEnd Either true or false - * - * @return {mixed} - */ - public function eventsFromRange($rangeStart = false, $rangeEnd = false) - { - $events = $this->sortEventsWithOrder($this->events(), SORT_ASC); - - if (!$events) { - return false; - } - - $extendedEvents = array(); - - if ($rangeStart !== false) { - $rangeStart = new DateTime(); - } - - if ($rangeEnd !== false or $rangeEnd <= 0) { - $rangeEnd = new DateTime('2038/01/18'); - } else { - $rangeEnd = new DateTime($rangeEnd); - } - - $rangeStart = $rangeStart->format('U'); - $rangeEnd = $rangeEnd->format('U'); - - - - // loop through all events by adding two new elements - foreach ($events as $anEvent) { - $timestamp = $this->iCalDateToUnixTimestamp($anEvent['DTSTART']); - if ($timestamp >= $rangeStart && $timestamp <= $rangeEnd) { - $extendedEvents[] = $anEvent; - } - } - - return $extendedEvents; - } - - /** - * Returns a boolean value whether thr current calendar has events or not - * - * @param {array} $events An array with events. - * @param {array} $sortOrder Either SORT_ASC, SORT_DESC, SORT_REGULAR, - * SORT_NUMERIC, SORT_STRING - * - * @return {boolean} - */ - public function sortEventsWithOrder($events, $sortOrder = SORT_ASC) - { - $extendedEvents = array(); - - // loop through all events by adding two new elements - foreach ($events as $anEvent) { - if (!array_key_exists('UNIX_TIMESTAMP', $anEvent)) { - $anEvent['UNIX_TIMESTAMP'] = - $this->iCalDateToUnixTimestamp($anEvent['DTSTART']); - } - - if (!array_key_exists('REAL_DATETIME', $anEvent)) { - $anEvent['REAL_DATETIME'] = - date("d.m.Y", $anEvent['UNIX_TIMESTAMP']); - } - - $extendedEvents[] = $anEvent; - } - - foreach ($extendedEvents as $key => $value) { - $timestamp[$key] = $value['UNIX_TIMESTAMP']; - } - array_multisort($timestamp, $sortOrder, $extendedEvents); - - return $extendedEvents; - } -} |