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diff --git a/calendar/lib/SabreDAV/vendor/oldsabre/vobject/lib/Sabre/VObject/Component.php b/calendar/lib/SabreDAV/vendor/oldsabre/vobject/lib/Sabre/VObject/Component.php
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+++ b/calendar/lib/SabreDAV/vendor/oldsabre/vobject/lib/Sabre/VObject/Component.php
@@ -0,0 +1,405 @@
+<?php
+
+namespace OldSabre\VObject;
+
+/**
+ * VObject Component
+ *
+ * This class represents a VCALENDAR/VCARD component. A component is for example
+ * VEVENT, VTODO and also VCALENDAR. It starts with BEGIN:COMPONENTNAME and
+ * ends with END:COMPONENTNAME
+ *
+ * @copyright Copyright (C) 2007-2013 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
+ */
+class Component extends Node {
+
+ /**
+ * Name, for example VEVENT
+ *
+ * @var string
+ */
+ public $name;
+
+ /**
+ * Children properties and components
+ *
+ * @var array
+ */
+ public $children = array();
+
+ /**
+ * If components are added to this map, they will be automatically mapped
+ * to their respective classes, if parsed by the reader or constructed with
+ * the 'create' method.
+ *
+ * @var array
+ */
+ static public $classMap = array(
+ 'VALARM' => 'OldSabre\\VObject\\Component\\VAlarm',
+ 'VCALENDAR' => 'OldSabre\\VObject\\Component\\VCalendar',
+ 'VCARD' => 'OldSabre\\VObject\\Component\\VCard',
+ 'VEVENT' => 'OldSabre\\VObject\\Component\\VEvent',
+ 'VJOURNAL' => 'OldSabre\\VObject\\Component\\VJournal',
+ 'VTODO' => 'OldSabre\\VObject\\Component\\VTodo',
+ 'VFREEBUSY' => 'OldSabre\\VObject\\Component\\VFreeBusy',
+ );
+
+ /**
+ * Creates the new component by name, but in addition will also see if
+ * there's a class mapped to the property name.
+ *
+ * @param string $name
+ * @param string $value
+ * @return Component
+ */
+ static public function create($name, $value = null) {
+
+ $name = strtoupper($name);
+
+ if (isset(self::$classMap[$name])) {
+ return new self::$classMap[$name]($name, $value);
+ } else {
+ return new self($name, $value);
+ }
+
+ }
+
+ /**
+ * Creates a new component.
+ *
+ * By default this object will iterate over its own children, but this can
+ * be overridden with the iterator argument
+ *
+ * @param string $name
+ * @param ElementList $iterator
+ */
+ public function __construct($name, ElementList $iterator = null) {
+
+ $this->name = strtoupper($name);
+ if (!is_null($iterator)) $this->iterator = $iterator;
+
+ }
+
+ /**
+ * Turns the object back into a serialized blob.
+ *
+ * @return string
+ */
+ public function serialize() {
+
+ $str = "BEGIN:" . $this->name . "\r\n";
+
+ /**
+ * Gives a component a 'score' for sorting purposes.
+ *
+ * This is solely used by the childrenSort method.
+ *
+ * A higher score means the item will be lower in the list.
+ * To avoid score collisions, each "score category" has a reasonable
+ * space to accomodate elements. The $key is added to the $score to
+ * preserve the original relative order of elements.
+ *
+ * @param int $key
+ * @param array $array
+ * @return int
+ */
+ $sortScore = function($key, $array) {
+
+ if ($array[$key] instanceof Component) {
+
+ // We want to encode VTIMEZONE first, this is a personal
+ // preference.
+ if ($array[$key]->name === 'VTIMEZONE') {
+ $score=300000000;
+ return $score+$key;
+ } else {
+ $score=400000000;
+ return $score+$key;
+ }
+ } else {
+ // Properties get encoded first
+ // VCARD version 4.0 wants the VERSION property to appear first
+ if ($array[$key] instanceof Property) {
+ if ($array[$key]->name === 'VERSION') {
+ $score=100000000;
+ return $score+$key;
+ } else {
+ // All other properties
+ $score=200000000;
+ return $score+$key;
+ }
+ }
+ }
+
+ };
+
+ $tmp = $this->children;
+ uksort($this->children, function($a, $b) use ($sortScore, $tmp) {
+
+ $sA = $sortScore($a, $tmp);
+ $sB = $sortScore($b, $tmp);
+
+ if ($sA === $sB) return 0;
+
+ return ($sA < $sB) ? -1 : 1;
+
+ });
+
+ foreach($this->children as $child) $str.=$child->serialize();
+ $str.= "END:" . $this->name . "\r\n";
+
+ return $str;
+
+ }
+
+ /**
+ * Adds a new component or element
+ *
+ * You can call this method with the following syntaxes:
+ *
+ * add(Node $node)
+ * add(string $name, $value, array $parameters = array())
+ *
+ * The first version adds an Element
+ * The second adds a property as a string.
+ *
+ * @param mixed $item
+ * @param mixed $itemValue
+ * @return void
+ */
+ public function add($item, $itemValue = null, array $parameters = array()) {
+
+ if ($item instanceof Node) {
+ if (!is_null($itemValue)) {
+ throw new \InvalidArgumentException('The second argument must not be specified, when passing a VObject Node');
+ }
+ $item->parent = $this;
+ $this->children[] = $item;
+ } elseif(is_string($item)) {
+
+ $item = Property::create($item,$itemValue, $parameters);
+ $item->parent = $this;
+ $this->children[] = $item;
+
+ } else {
+
+ throw new \InvalidArgumentException('The first argument must either be a \\OldSabre\\VObject\\Node or a string');
+
+ }
+
+ }
+
+ /**
+ * Returns an iterable list of children
+ *
+ * @return ElementList
+ */
+ public function children() {
+
+ return new ElementList($this->children);
+
+ }
+
+ /**
+ * Returns an array with elements that match the specified name.
+ *
+ * This function is also aware of MIME-Directory groups (as they appear in
+ * vcards). This means that if a property is grouped as "HOME.EMAIL", it
+ * will also be returned when searching for just "EMAIL". If you want to
+ * search for a property in a specific group, you can select on the entire
+ * string ("HOME.EMAIL"). If you want to search on a specific property that
+ * has not been assigned a group, specify ".EMAIL".
+ *
+ * Keys are retained from the 'children' array, which may be confusing in
+ * certain cases.
+ *
+ * @param string $name
+ * @return array
+ */
+ public function select($name) {
+
+ $group = null;
+ $name = strtoupper($name);
+ if (strpos($name,'.')!==false) {
+ list($group,$name) = explode('.', $name, 2);
+ }
+
+ $result = array();
+ foreach($this->children as $key=>$child) {
+
+ if (
+ strtoupper($child->name) === $name &&
+ (is_null($group) || ( $child instanceof Property && strtoupper($child->group) === $group))
+ ) {
+
+ $result[$key] = $child;
+
+ }
+ }
+
+ reset($result);
+ return $result;
+
+ }
+
+ /**
+ * This method only returns a list of sub-components. Properties are
+ * ignored.
+ *
+ * @return array
+ */
+ public function getComponents() {
+
+ $result = array();
+ foreach($this->children as $child) {
+ if ($child instanceof Component) {
+ $result[] = $child;
+ }
+ }
+
+ return $result;
+
+ }
+
+ /**
+ * Validates the node for correctness.
+ *
+ * The following options are supported:
+ * - Node::REPAIR - If something is broken, and automatic repair may
+ * be attempted.
+ *
+ * An array is returned with warnings.
+ *
+ * Every item in the array has the following properties:
+ * * level - (number between 1 and 3 with severity information)
+ * * message - (human readable message)
+ * * node - (reference to the offending node)
+ *
+ * @param int $options
+ * @return array
+ */
+ public function validate($options = 0) {
+
+ $result = array();
+ foreach($this->children as $child) {
+ $result = array_merge($result, $child->validate($options));
+ }
+ return $result;
+
+ }
+
+ /* Magic property accessors {{{ */
+
+ /**
+ * Using 'get' you will either get a property or component,
+ *
+ * If there were no child-elements found with the specified name,
+ * null is returned.
+ *
+ * @param string $name
+ * @return Property
+ */
+ public function __get($name) {
+
+ $matches = $this->select($name);
+ if (count($matches)===0) {
+ return null;
+ } else {
+ $firstMatch = current($matches);
+ /** @var $firstMatch Property */
+ $firstMatch->setIterator(new ElementList(array_values($matches)));
+ return $firstMatch;
+ }
+
+ }
+
+ /**
+ * This method checks if a sub-element with the specified name exists.
+ *
+ * @param string $name
+ * @return bool
+ */
+ public function __isset($name) {
+
+ $matches = $this->select($name);
+ return count($matches)>0;
+
+ }
+
+ /**
+ * Using the setter method you can add properties or subcomponents
+ *
+ * You can either pass a Component, Property
+ * object, or a string to automatically create a Property.
+ *
+ * If the item already exists, it will be removed. If you want to add
+ * a new item with the same name, always use the add() method.
+ *
+ * @param string $name
+ * @param mixed $value
+ * @return void
+ */
+ public function __set($name, $value) {
+
+ $matches = $this->select($name);
+ $overWrite = count($matches)?key($matches):null;
+
+ if ($value instanceof Component || $value instanceof Property) {
+ $value->parent = $this;
+ if (!is_null($overWrite)) {
+ $this->children[$overWrite] = $value;
+ } else {
+ $this->children[] = $value;
+ }
+ } elseif (is_scalar($value)) {
+ $property = Property::create($name,$value);
+ $property->parent = $this;
+ if (!is_null($overWrite)) {
+ $this->children[$overWrite] = $property;
+ } else {
+ $this->children[] = $property;
+ }
+ } else {
+ throw new \InvalidArgumentException('You must pass a \\OldSabre\\VObject\\Component, \\OldSabre\\VObject\\Property or scalar type');
+ }
+
+ }
+
+ /**
+ * Removes all properties and components within this component.
+ *
+ * @param string $name
+ * @return void
+ */
+ public function __unset($name) {
+
+ $matches = $this->select($name);
+ foreach($matches as $k=>$child) {
+
+ unset($this->children[$k]);
+ $child->parent = null;
+
+ }
+
+ }
+
+ /* }}} */
+
+ /**
+ * This method is automatically called when the object is cloned.
+ * Specifically, this will ensure all child elements are also cloned.
+ *
+ * @return void
+ */
+ public function __clone() {
+
+ foreach($this->children as $key=>$child) {
+ $this->children[$key] = clone $child;
+ $this->children[$key]->parent = $this;
+ }
+
+ }
+
+}

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