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authorredmatrix <git@macgirvin.com>2016-05-10 17:26:44 -0700
committerredmatrix <git@macgirvin.com>2016-05-10 17:26:44 -0700
commit0b02a6d123b2014705998c94ddf3d460948d3eac (patch)
tree78ff2cab9944a4f5ab3f80ec93cbe1120de90bb2 /vendor/sabre/vobject/lib/Splitter/ICalendar.php
parent40b5b6e9d2da7ab65c8b4d38cdceac83a4d78deb (diff)
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initial sabre upgrade (needs lots of work - to wit: authentication, redo the browser interface, and rework event export/import)
Diffstat (limited to 'vendor/sabre/vobject/lib/Splitter/ICalendar.php')
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diff --git a/vendor/sabre/vobject/lib/Splitter/ICalendar.php b/vendor/sabre/vobject/lib/Splitter/ICalendar.php
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+++ b/vendor/sabre/vobject/lib/Splitter/ICalendar.php
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+<?php
+
+namespace Sabre\VObject\Splitter;
+
+use Sabre\VObject;
+use Sabre\VObject\Component\VCalendar;
+
+/**
+ * Splitter.
+ *
+ * This class is responsible for splitting up iCalendar objects.
+ *
+ * This class expects a single VCALENDAR object with one or more
+ * calendar-objects inside. Objects with identical UID's will be combined into
+ * a single object.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Dominik Tobschall (http://tobschall.de/)
+ * @author Armin Hackmann
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class ICalendar implements SplitterInterface {
+
+ /**
+ * Timezones.
+ *
+ * @var array
+ */
+ protected $vtimezones = [];
+
+ /**
+ * iCalendar objects.
+ *
+ * @var array
+ */
+ protected $objects = [];
+
+ /**
+ * Constructor.
+ *
+ * The splitter should receive an readable file stream as it's input.
+ *
+ * @param resource $input
+ * @param int $options Parser options, see the OPTIONS constants.
+ */
+ function __construct($input, $options = 0) {
+
+ $data = VObject\Reader::read($input, $options);
+
+ if (!$data instanceof VObject\Component\VCalendar) {
+ throw new VObject\ParseException('Supplied input could not be parsed as VCALENDAR.');
+ }
+
+ foreach ($data->children() as $component) {
+ if (!$component instanceof VObject\Component) {
+ continue;
+ }
+
+ // Get all timezones
+ if ($component->name === 'VTIMEZONE') {
+ $this->vtimezones[(string)$component->TZID] = $component;
+ continue;
+ }
+
+ // Get component UID for recurring Events search
+ if (!$component->UID) {
+ $component->UID = sha1(microtime()) . '-vobjectimport';
+ }
+ $uid = (string)$component->UID;
+
+ // Take care of recurring events
+ if (!array_key_exists($uid, $this->objects)) {
+ $this->objects[$uid] = new VCalendar();
+ }
+
+ $this->objects[$uid]->add(clone $component);
+ }
+
+ }
+
+ /**
+ * Every time getNext() is called, a new object will be parsed, until we
+ * hit the end of the stream.
+ *
+ * When the end is reached, null will be returned.
+ *
+ * @return Sabre\VObject\Component|null
+ */
+ function getNext() {
+
+ if ($object = array_shift($this->objects)) {
+
+ // create our baseobject
+ $object->version = '2.0';
+ $object->prodid = '-//Sabre//Sabre VObject ' . VObject\Version::VERSION . '//EN';
+ $object->calscale = 'GREGORIAN';
+
+ // add vtimezone information to obj (if we have it)
+ foreach ($this->vtimezones as $vtimezone) {
+ $object->add($vtimezone);
+ }
+
+ return $object;
+
+ } else {
+
+ return;
+
+ }
+
+ }
+
+}