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authorfriendica <info@friendica.com>2013-10-21 15:46:31 -0700
committerfriendica <info@friendica.com>2013-10-21 15:46:31 -0700
commitb35122f7a6ad42756c35bb60ba1f06c3dcd45c77 (patch)
treeccdf373ce6475d264778523259cc32899b732fe7 /vendor/sabre/vobject/lib
parente3504df514d306cfe6b83e44a11f550664564af4 (diff)
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add sabre (1.8.x) via composer in the !@#$ place it wants to be
Diffstat (limited to 'vendor/sabre/vobject/lib')
-rw-r--r--vendor/sabre/vobject/lib/Sabre/VObject/Component.php405
-rw-r--r--vendor/sabre/vobject/lib/Sabre/VObject/Component/VAlarm.php108
-rw-r--r--vendor/sabre/vobject/lib/Sabre/VObject/Component/VCalendar.php244
-rw-r--r--vendor/sabre/vobject/lib/Sabre/VObject/Component/VCard.php107
-rw-r--r--vendor/sabre/vobject/lib/Sabre/VObject/Component/VEvent.php70
-rw-r--r--vendor/sabre/vobject/lib/Sabre/VObject/Component/VFreeBusy.php68
-rw-r--r--vendor/sabre/vobject/lib/Sabre/VObject/Component/VJournal.php46
-rw-r--r--vendor/sabre/vobject/lib/Sabre/VObject/Component/VTodo.php68
-rw-r--r--vendor/sabre/vobject/lib/Sabre/VObject/DateTimeParser.php181
-rw-r--r--vendor/sabre/vobject/lib/Sabre/VObject/Document.php109
-rw-r--r--vendor/sabre/vobject/lib/Sabre/VObject/ElementList.php172
-rw-r--r--vendor/sabre/vobject/lib/Sabre/VObject/FreeBusyGenerator.php322
-rw-r--r--vendor/sabre/vobject/lib/Sabre/VObject/Node.php187
-rw-r--r--vendor/sabre/vobject/lib/Sabre/VObject/Parameter.php104
-rw-r--r--vendor/sabre/vobject/lib/Sabre/VObject/ParseException.php12
-rw-r--r--vendor/sabre/vobject/lib/Sabre/VObject/Property.php444
-rw-r--r--vendor/sabre/vobject/lib/Sabre/VObject/Property/Compound.php125
-rw-r--r--vendor/sabre/vobject/lib/Sabre/VObject/Property/DateTime.php245
-rw-r--r--vendor/sabre/vobject/lib/Sabre/VObject/Property/MultiDateTime.php180
-rw-r--r--vendor/sabre/vobject/lib/Sabre/VObject/Reader.php223
-rw-r--r--vendor/sabre/vobject/lib/Sabre/VObject/RecurrenceIterator.php1144
-rw-r--r--vendor/sabre/vobject/lib/Sabre/VObject/Splitter/ICalendar.php111
-rw-r--r--vendor/sabre/vobject/lib/Sabre/VObject/Splitter/SplitterInterface.php39
-rw-r--r--vendor/sabre/vobject/lib/Sabre/VObject/Splitter/VCard.php76
-rw-r--r--vendor/sabre/vobject/lib/Sabre/VObject/StringUtil.php61
-rw-r--r--vendor/sabre/vobject/lib/Sabre/VObject/TimeZoneUtil.php482
-rw-r--r--vendor/sabre/vobject/lib/Sabre/VObject/Version.php24
-rw-r--r--vendor/sabre/vobject/lib/Sabre/VObject/includes.php41
28 files changed, 5398 insertions, 0 deletions
diff --git a/vendor/sabre/vobject/lib/Sabre/VObject/Component.php b/vendor/sabre/vobject/lib/Sabre/VObject/Component.php
new file mode 100644
index 000000000..1c1d92444
--- /dev/null
+++ b/vendor/sabre/vobject/lib/Sabre/VObject/Component.php
@@ -0,0 +1,405 @@
+<?php
+
+namespace Sabre\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' => 'Sabre\\VObject\\Component\\VAlarm',
+ 'VCALENDAR' => 'Sabre\\VObject\\Component\\VCalendar',
+ 'VCARD' => 'Sabre\\VObject\\Component\\VCard',
+ 'VEVENT' => 'Sabre\\VObject\\Component\\VEvent',
+ 'VJOURNAL' => 'Sabre\\VObject\\Component\\VJournal',
+ 'VTODO' => 'Sabre\\VObject\\Component\\VTodo',
+ 'VFREEBUSY' => 'Sabre\\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[] = $item;
+
+ } else {
+
+ throw new \InvalidArgumentException('The first argument must either be a \\Sabre\\VObject\\Node or a string');
+
+ }
+
+ }
+
+ /**
+ * Returns an iterable list of children
+ *
+ * @return ElementList
+ */
+ public function children() {
+
+ return new ElementList($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 \\Sabre\\VObject\\Component, \\Sabre\\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;
+ }
+
+ }
+
+}
diff --git a/vendor/sabre/vobject/lib/Sabre/VObject/Component/VAlarm.php b/vendor/sabre/vobject/lib/Sabre/VObject/Component/VAlarm.php
new file mode 100644
index 000000000..2f86c44fd
--- /dev/null
+++ b/vendor/sabre/vobject/lib/Sabre/VObject/Component/VAlarm.php
@@ -0,0 +1,108 @@
+<?php
+
+namespace Sabre\VObject\Component;
+use Sabre\VObject;
+
+/**
+ * VAlarm component
+ *
+ * This component contains some additional functionality specific for VALARMs.
+ *
+ * @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 VAlarm extends VObject\Component {
+
+ /**
+ * Returns a DateTime object when this alarm is going to trigger.
+ *
+ * This ignores repeated alarm, only the first trigger is returned.
+ *
+ * @return DateTime
+ */
+ public function getEffectiveTriggerTime() {
+
+ $trigger = $this->TRIGGER;
+ if(!isset($trigger['VALUE']) || strtoupper($trigger['VALUE']) === 'DURATION') {
+ $triggerDuration = VObject\DateTimeParser::parseDuration($this->TRIGGER);
+ $related = (isset($trigger['RELATED']) && strtoupper($trigger['RELATED']) == 'END') ? 'END' : 'START';
+
+ $parentComponent = $this->parent;
+ if ($related === 'START') {
+
+ if ($parentComponent->name === 'VTODO') {
+ $propName = 'DUE';
+ } else {
+ $propName = 'DTSTART';
+ }
+
+ $effectiveTrigger = clone $parentComponent->$propName->getDateTime();
+ $effectiveTrigger->add($triggerDuration);
+ } else {
+ if ($parentComponent->name === 'VTODO') {
+ $endProp = 'DUE';
+ } elseif ($parentComponent->name === 'VEVENT') {
+ $endProp = 'DTEND';
+ } else {
+ throw new \LogicException('time-range filters on VALARM components are only supported when they are a child of VTODO or VEVENT');
+ }
+
+ if (isset($parentComponent->$endProp)) {
+ $effectiveTrigger = clone $parentComponent->$endProp->getDateTime();
+ $effectiveTrigger->add($triggerDuration);
+ } elseif (isset($parentComponent->DURATION)) {
+ $effectiveTrigger = clone $parentComponent->DTSTART->getDateTime();
+ $duration = VObject\DateTimeParser::parseDuration($parentComponent->DURATION);
+ $effectiveTrigger->add($duration);
+ $effectiveTrigger->add($triggerDuration);
+ } else {
+ $effectiveTrigger = clone $parentComponent->DTSTART->getDateTime();
+ $effectiveTrigger->add($triggerDuration);
+ }
+ }
+ } else {
+ $effectiveTrigger = $trigger->getDateTime();
+ }
+ return $effectiveTrigger;
+
+ }
+
+ /**
+ * Returns true or false depending on if the event falls in the specified
+ * time-range. This is used for filtering purposes.
+ *
+ * The rules used to determine if an event falls within the specified
+ * time-range is based on the CalDAV specification.
+ *
+ * @param \DateTime $start
+ * @param \DateTime $end
+ * @return bool
+ */
+ public function isInTimeRange(\DateTime $start, \DateTime $end) {
+
+ $effectiveTrigger = $this->getEffectiveTriggerTime();
+
+ if (isset($this->DURATION)) {
+ $duration = VObject\DateTimeParser::parseDuration($this->DURATION);
+ $repeat = (string)$this->repeat;
+ if (!$repeat) {
+ $repeat = 1;
+ }
+
+ $period = new \DatePeriod($effectiveTrigger, $duration, (int)$repeat);
+
+ foreach($period as $occurrence) {
+
+ if ($start <= $occurrence && $end > $occurrence) {
+ return true;
+ }
+ }
+ return false;
+ } else {
+ return ($start <= $effectiveTrigger && $end > $effectiveTrigger);
+ }
+
+ }
+
+}
diff --git a/vendor/sabre/vobject/lib/Sabre/VObject/Component/VCalendar.php b/vendor/sabre/vobject/lib/Sabre/VObject/Component/VCalendar.php
new file mode 100644
index 000000000..9de67982e
--- /dev/null
+++ b/vendor/sabre/vobject/lib/Sabre/VObject/Component/VCalendar.php
@@ -0,0 +1,244 @@
+<?php
+
+namespace Sabre\VObject\Component;
+
+use Sabre\VObject;
+
+/**
+ * The VCalendar component
+ *
+ * This component adds functionality to a component, specific for a VCALENDAR.
+ *
+ * @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 VCalendar extends VObject\Document {
+
+ static $defaultName = 'VCALENDAR';
+
+ /**
+ * Returns a list of all 'base components'. For instance, if an Event has
+ * a recurrence rule, and one instance is overridden, the overridden event
+ * will have the same UID, but will be excluded from this list.
+ *
+ * VTIMEZONE components will always be excluded.
+ *
+ * @param string $componentName filter by component name
+ * @return array
+ */
+ public function getBaseComponents($componentName = null) {
+
+ $components = array();
+ foreach($this->children as $component) {
+
+ if (!$component instanceof VObject\Component)
+ continue;
+
+ if (isset($component->{'RECURRENCE-ID'}))
+ continue;
+
+ if ($componentName && $component->name !== strtoupper($componentName))
+ continue;
+
+ if ($component->name === 'VTIMEZONE')
+ continue;
+
+ $components[] = $component;
+
+ }
+
+ return $components;
+
+ }
+
+ /**
+ * If this calendar object, has events with recurrence rules, this method
+ * can be used to expand the event into multiple sub-events.
+ *
+ * Each event will be stripped from it's recurrence information, and only
+ * the instances of the event in the specified timerange will be left
+ * alone.
+ *
+ * In addition, this method will cause timezone information to be stripped,
+ * and normalized to UTC.
+ *
+ * This method will alter the VCalendar. This cannot be reversed.
+ *
+ * This functionality is specifically used by the CalDAV standard. It is
+ * possible for clients to request expand events, if they are rather simple
+ * clients and do not have the possibility to calculate recurrences.
+ *
+ * @param DateTime $start
+ * @param DateTime $end
+ * @return void
+ */
+ public function expand(\DateTime $start, \DateTime $end) {
+
+ $newEvents = array();
+
+ foreach($this->select('VEVENT') as $key=>$vevent) {
+
+ if (isset($vevent->{'RECURRENCE-ID'})) {
+ unset($this->children[$key]);
+ continue;
+ }
+
+
+ if (!$vevent->rrule) {
+ unset($this->children[$key]);
+ if ($vevent->isInTimeRange($start, $end)) {
+ $newEvents[] = $vevent;
+ }
+ continue;
+ }
+
+ $uid = (string)$vevent->uid;
+ if (!$uid) {
+ throw new \LogicException('Event did not have a UID!');
+ }
+
+ $it = new VObject\RecurrenceIterator($this, $vevent->uid);
+ $it->fastForward($start);
+
+ while($it->valid() && $it->getDTStart() < $end) {
+
+ if ($it->getDTEnd() > $start) {
+
+ $newEvents[] = $it->getEventObject();
+
+ }
+ $it->next();
+
+ }
+ unset($this->children[$key]);
+
+ }
+
+ foreach($newEvents as $newEvent) {
+
+ foreach($newEvent->children as $child) {
+ if ($child instanceof VObject\Property\DateTime &&
+ $child->getDateType() == VObject\Property\DateTime::LOCALTZ) {
+ $child->setDateTime($child->getDateTime(),VObject\Property\DateTime::UTC);
+ }
+ }
+
+ $this->add($newEvent);
+
+ }
+
+ // Removing all VTIMEZONE components
+ unset($this->VTIMEZONE);
+
+ }
+
+ /**
+ * Validates the node for correctness.
+ * 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)
+ *
+ * @return array
+ */
+ /*
+ public function validate() {
+
+ $warnings = array();
+
+ $version = $this->select('VERSION');
+ if (count($version)!==1) {
+ $warnings[] = array(
+ 'level' => 1,
+ 'message' => 'The VERSION property must appear in the VCALENDAR component exactly 1 time',
+ 'node' => $this,
+ );
+ } else {
+ if ((string)$this->VERSION !== '2.0') {
+ $warnings[] = array(
+ 'level' => 1,
+ 'message' => 'Only iCalendar version 2.0 as defined in rfc5545 is supported.',
+ 'node' => $this,
+ );
+ }
+ }
+ $version = $this->select('PRODID');
+ if (count($version)!==1) {
+ $warnings[] = array(
+ 'level' => 2,
+ 'message' => 'The PRODID property must appear in the VCALENDAR component exactly 1 time',
+ 'node' => $this,
+ );
+ }
+ if (count($this->CALSCALE) > 1) {
+ $warnings[] = array(
+ 'level' => 2,
+ 'message' => 'The CALSCALE property must not be specified more than once.',
+ 'node' => $this,
+ );
+ }
+ if (count($this->METHOD) > 1) {
+ $warnings[] = array(
+ 'level' => 2,
+ 'message' => 'The METHOD property must not be specified more than once.',
+ 'node' => $this,
+ );
+ }
+
+ $allowedComponents = array(
+ 'VEVENT',
+ 'VTODO',
+ 'VJOURNAL',
+ 'VFREEBUSY',
+ 'VTIMEZONE',
+ );
+ $allowedProperties = array(
+ 'PRODID',
+ 'VERSION',
+ 'CALSCALE',
+ 'METHOD',
+ );
+ $componentsFound = 0;
+ foreach($this->children as $child) {
+ if($child instanceof Component) {
+ $componentsFound++;
+ if (!in_array($child->name, $allowedComponents)) {
+ $warnings[] = array(
+ 'level' => 1,
+ 'message' => 'The ' . $child->name . " component is not allowed in the VCALENDAR component",
+ 'node' => $this,
+ );
+ }
+ }
+ if ($child instanceof Property) {
+ if (!in_array($child->name, $allowedProperties)) {
+ $warnings[] = array(
+ 'level' => 2,
+ 'message' => 'The ' . $child->name . " property is not allowed in the VCALENDAR component",
+ 'node' => $this,
+ );
+ }
+ }
+ }
+
+ if ($componentsFound===0) {
+ $warnings[] = array(
+ 'level' => 1,
+ 'message' => 'An iCalendar object must have at least 1 component.',
+ 'node' => $this,
+ );
+ }
+
+ return array_merge(
+ $warnings,
+ parent::validate()
+ );
+
+ }
+ */
+
+}
+
diff --git a/vendor/sabre/vobject/lib/Sabre/VObject/Component/VCard.php b/vendor/sabre/vobject/lib/Sabre/VObject/Component/VCard.php
new file mode 100644
index 000000000..0fc8b7020
--- /dev/null
+++ b/vendor/sabre/vobject/lib/Sabre/VObject/Component/VCard.php
@@ -0,0 +1,107 @@
+<?php
+
+namespace Sabre\VObject\Component;
+
+use Sabre\VObject;
+
+/**
+ * The VCard component
+ *
+ * This component represents the BEGIN:VCARD and END:VCARD found in every
+ * vcard.
+ *
+ * @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 VCard extends VObject\Component {
+
+ static $defaultName = 'VCARD';
+
+ /**
+ * VCards with version 2.1, 3.0 and 4.0 are found.
+ *
+ * If the VCARD doesn't know its version, 4.0 is assumed.
+ */
+ const DEFAULT_VERSION = '4.0';
+
+ /**
+ * 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) {
+
+ $warnings = array();
+
+ $version = $this->select('VERSION');
+ if (count($version)!==1) {
+ $warnings[] = array(
+ 'level' => 1,
+ 'message' => 'The VERSION property must appear in the VCARD component exactly 1 time',
+ 'node' => $this,
+ );
+ if ($options & self::REPAIR) {
+ $this->VERSION = self::DEFAULT_VERSION;
+ }
+ } else {
+ $version = (string)$this->VERSION;
+ if ($version!=='2.1' && $version!=='3.0' && $version!=='4.0') {
+ $warnings[] = array(
+ 'level' => 1,
+ 'message' => 'Only vcard version 4.0 (RFC6350), version 3.0 (RFC2426) or version 2.1 (icm-vcard-2.1) are supported.',
+ 'node' => $this,
+ );
+ if ($options & self::REPAIR) {
+ $this->VERSION = '4.0';
+ }
+ }
+
+ }
+ $fn = $this->select('FN');
+ if (count($fn)!==1) {
+ $warnings[] = array(
+ 'level' => 1,
+ 'message' => 'The FN property must appear in the VCARD component exactly 1 time',
+ 'node' => $this,
+ );
+ if (($options & self::REPAIR) && count($fn) === 0) {
+ // We're going to try to see if we can use the contents of the
+ // N property.
+ if (isset($this->N)) {
+ $value = explode(';', (string)$this->N);
+ if (isset($value[1]) && $value[1]) {
+ $this->FN = $value[1] . ' ' . $value[0];
+ } else {
+ $this->FN = $value[0];
+ }
+
+ // Otherwise, the ORG property may work
+ } elseif (isset($this->ORG)) {
+ $this->FN = (string)$this->ORG;
+ }
+
+ }
+ }
+
+ return array_merge(
+ parent::validate($options),
+ $warnings
+ );
+
+ }
+
+}
+
diff --git a/vendor/sabre/vobject/lib/Sabre/VObject/Component/VEvent.php b/vendor/sabre/vobject/lib/Sabre/VObject/Component/VEvent.php
new file mode 100644
index 000000000..2375c5317
--- /dev/null
+++ b/vendor/sabre/vobject/lib/Sabre/VObject/Component/VEvent.php
@@ -0,0 +1,70 @@
+<?php
+
+namespace Sabre\VObject\Component;
+use Sabre\VObject;
+
+/**
+ * VEvent component
+ *
+ * This component contains some additional functionality specific for VEVENT's.
+ *
+ * @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 VEvent extends VObject\Component {
+
+ /**
+ * Returns true or false depending on if the event falls in the specified
+ * time-range. This is used for filtering purposes.
+ *
+ * The rules used to determine if an event falls within the specified
+ * time-range is based on the CalDAV specification.
+ *
+ * @param \DateTime $start
+ * @param \DateTime $end
+ * @return bool
+ */
+ public function isInTimeRange(\DateTime $start, \DateTime $end) {
+
+ if ($this->RRULE) {
+ $it = new VObject\RecurrenceIterator($this);
+ $it->fastForward($start);
+
+ // We fast-forwarded to a spot where the end-time of the
+ // recurrence instance exceeded the start of the requested
+ // time-range.
+ //
+ // If the starttime of the recurrence did not exceed the
+ // end of the time range as well, we have a match.
+ return ($it->getDTStart() < $end && $it->getDTEnd() > $start);
+
+ }
+
+ $effectiveStart = $this->DTSTART->getDateTime();
+ if (isset($this->DTEND)) {
+
+ // The DTEND property is considered non inclusive. So for a 3 day
+ // event in july, dtstart and dtend would have to be July 1st and
+ // July 4th respectively.
+ //
+ // See:
+ // http://tools.ietf.org/html/rfc5545#page-54
+ $effectiveEnd = $this->DTEND->getDateTime();
+
+ } elseif (isset($this->DURATION)) {
+ $effectiveEnd = clone $effectiveStart;
+ $effectiveEnd->add( VObject\DateTimeParser::parseDuration($this->DURATION) );
+ } elseif ($this->DTSTART->getDateType() == VObject\Property\DateTime::DATE) {
+ $effectiveEnd = clone $effectiveStart;
+ $effectiveEnd->modify('+1 day');
+ } else {
+ $effectiveEnd = clone $effectiveStart;
+ }
+ return (
+ ($start <= $effectiveEnd) && ($end > $effectiveStart)
+ );
+
+ }
+
+}
diff --git a/vendor/sabre/vobject/lib/Sabre/VObject/Component/VFreeBusy.php b/vendor/sabre/vobject/lib/Sabre/VObject/Component/VFreeBusy.php
new file mode 100644
index 000000000..7afe9fdb3
--- /dev/null
+++ b/vendor/sabre/vobject/lib/Sabre/VObject/Component/VFreeBusy.php
@@ -0,0 +1,68 @@
+<?php
+
+namespace Sabre\VObject\Component;
+
+use Sabre\VObject;
+
+/**
+ * The VFreeBusy component
+ *
+ * This component adds functionality to a component, specific for VFREEBUSY
+ * components.
+ *
+ * @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 VFreeBusy extends VObject\Component {
+
+ /**
+ * Checks based on the contained FREEBUSY information, if a timeslot is
+ * available.
+ *
+ * @param DateTime $start
+ * @param Datetime $end
+ * @return bool
+ */
+ public function isFree(\DateTime $start, \Datetime $end) {
+
+ foreach($this->select('FREEBUSY') as $freebusy) {
+
+ // We are only interested in FBTYPE=BUSY (the default),
+ // FBTYPE=BUSY-TENTATIVE or FBTYPE=BUSY-UNAVAILABLE.
+ if (isset($freebusy['FBTYPE']) && strtoupper(substr((string)$freebusy['FBTYPE'],0,4))!=='BUSY') {
+ continue;
+ }
+
+ // The freebusy component can hold more than 1 value, separated by
+ // commas.
+ $periods = explode(',', (string)$freebusy);
+
+ foreach($periods as $period) {
+ // Every period is formatted as [start]/[end]. The start is an
+ // absolute UTC time, the end may be an absolute UTC time, or
+ // duration (relative) value.
+ list($busyStart, $busyEnd) = explode('/', $period);
+
+ $busyStart = VObject\DateTimeParser::parse($busyStart);
+ $busyEnd = VObject\DateTimeParser::parse($busyEnd);
+ if ($busyEnd instanceof \DateInterval) {
+ $tmp = clone $busyStart;
+ $tmp->add($busyEnd);
+ $busyEnd = $tmp;
+ }
+
+ if($start < $busyEnd && $end > $busyStart) {
+ return false;
+ }
+
+ }
+
+ }
+
+ return true;
+
+ }
+
+}
+
diff --git a/vendor/sabre/vobject/lib/Sabre/VObject/Component/VJournal.php b/vendor/sabre/vobject/lib/Sabre/VObject/Component/VJournal.php
new file mode 100644
index 000000000..232887879
--- /dev/null
+++ b/vendor/sabre/vobject/lib/Sabre/VObject/Component/VJournal.php
@@ -0,0 +1,46 @@
+<?php
+
+namespace Sabre\VObject\Component;
+
+use Sabre\VObject;
+
+/**
+ * VJournal component
+ *
+ * This component contains some additional functionality specific for VJOURNALs.
+ *
+ * @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 VJournal extends VObject\Component {
+
+ /**
+ * Returns true or false depending on if the event falls in the specified
+ * time-range. This is used for filtering purposes.
+ *
+ * The rules used to determine if an event falls within the specified
+ * time-range is based on the CalDAV specification.
+ *
+ * @param DateTime $start
+ * @param DateTime $end
+ * @return bool
+ */
+ public function isInTimeRange(\DateTime $start, \DateTime $end) {
+
+ $dtstart = isset($this->DTSTART)?$this->DTSTART->getDateTime():null;
+ if ($dtstart) {
+ $effectiveEnd = clone $dtstart;
+ if ($this->DTSTART->getDateType() == VObject\Property\DateTime::DATE) {
+ $effectiveEnd->modify('+1 day');
+ }
+
+ return ($start <= $effectiveEnd && $end > $dtstart);
+
+ }
+ return false;
+
+
+ }
+
+}
diff --git a/vendor/sabre/vobject/lib/Sabre/VObject/Component/VTodo.php b/vendor/sabre/vobject/lib/Sabre/VObject/Component/VTodo.php
new file mode 100644
index 000000000..b1579cf74
--- /dev/null
+++ b/vendor/sabre/vobject/lib/Sabre/VObject/Component/VTodo.php
@@ -0,0 +1,68 @@
+<?php
+
+namespace Sabre\VObject\Component;
+
+use Sabre\VObject;
+
+/**
+ * VTodo component
+ *
+ * This component contains some additional functionality specific for VTODOs.
+ *
+ * @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 VTodo extends VObject\Component {
+
+ /**
+ * Returns true or false depending on if the event falls in the specified
+ * time-range. This is used for filtering purposes.
+ *
+ * The rules used to determine if an event falls within the specified
+ * time-range is based on the CalDAV specification.
+ *
+ * @param DateTime $start
+ * @param DateTime $end
+ * @return bool
+ */
+ public function isInTimeRange(\DateTime $start, \DateTime $end) {
+
+ $dtstart = isset($this->DTSTART)?$this->DTSTART->getDateTime():null;
+ $duration = isset($this->DURATION)?VObject\DateTimeParser::parseDuration($this->DURATION):null;
+ $due = isset($this->DUE)?$this->DUE->getDateTime():null;
+ $completed = isset($this->COMPLETED)?$this->COMPLETED->getDateTime():null;
+ $created = isset($this->CREATED)?$this->CREATED->getDateTime():null;
+
+ if ($dtstart) {
+ if ($duration) {
+ $effectiveEnd = clone $dtstart;
+ $effectiveEnd->add($duration);
+ return $start <= $effectiveEnd && $end > $dtstart;
+ } elseif ($due) {
+ return
+ ($start < $due || $start <= $dtstart) &&
+ ($end > $dtstart || $end >= $due);
+ } else {
+ return $start <= $dtstart && $end > $dtstart;
+ }
+ }
+ if ($due) {
+ return ($start < $due && $end >= $due);
+ }
+ if ($completed && $created) {
+ return
+ ($start <= $created || $start <= $completed) &&
+ ($end >= $created || $end >= $completed);
+ }
+ if ($completed) {
+ return ($start <= $completed && $end >= $completed);
+ }
+ if ($created) {
+ return ($end > $created);
+ }
+ return true;
+
+ }
+
+}
diff --git a/vendor/sabre/vobject/lib/Sabre/VObject/DateTimeParser.php b/vendor/sabre/vobject/lib/Sabre/VObject/DateTimeParser.php
new file mode 100644
index 000000000..03600506d
--- /dev/null
+++ b/vendor/sabre/vobject/lib/Sabre/VObject/DateTimeParser.php
@@ -0,0 +1,181 @@
+<?php
+
+namespace Sabre\VObject;
+
+/**
+ * DateTimeParser
+ *
+ * This class is responsible for parsing the several different date and time
+ * formats iCalendar and vCards have.
+ *
+ * @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 DateTimeParser {
+
+ /**
+ * Parses an iCalendar (rfc5545) formatted datetime and returns a DateTime object
+ *
+ * Specifying a reference timezone is optional. It will only be used
+ * if the non-UTC format is used. The argument is used as a reference, the
+ * returned DateTime object will still be in the UTC timezone.
+ *
+ * @param string $dt
+ * @param DateTimeZone $tz
+ * @return DateTime
+ */
+ static public function parseDateTime($dt,\DateTimeZone $tz = null) {
+
+ // Format is YYYYMMDD + "T" + hhmmss
+ $result = preg_match('/^([1-4][0-9]{3})([0-1][0-9])([0-3][0-9])T([0-2][0-9])([0-5][0-9])([0-5][0-9])([Z]?)$/',$dt,$matches);
+
+ if (!$result) {
+ throw new \LogicException('The supplied iCalendar datetime value is incorrect: ' . $dt);
+ }
+
+ if ($matches[7]==='Z' || is_null($tz)) {
+ $tz = new \DateTimeZone('UTC');
+ }
+ $date = new \DateTime($matches[1] . '-' . $matches[2] . '-' . $matches[3] . ' ' . $matches[4] . ':' . $matches[5] .':' . $matches[6], $tz);
+
+ // Still resetting the timezone, to normalize everything to UTC
+ $date->setTimeZone(new \DateTimeZone('UTC'));
+ return $date;
+
+ }
+
+ /**
+ * Parses an iCalendar (rfc5545) formatted date and returns a DateTime object
+ *
+ * @param string $date
+ * @return DateTime
+ */
+ static public function parseDate($date) {
+
+ // Format is YYYYMMDD
+ $result = preg_match('/^([1-4][0-9]{3})([0-1][0-9])([0-3][0-9])$/',$date,$matches);
+
+ if (!$result) {
+ throw new \LogicException('The supplied iCalendar date value is incorrect: ' . $date);
+ }
+
+ $date = new \DateTime($matches[1] . '-' . $matches[2] . '-' . $matches[3], new \DateTimeZone('UTC'));
+ return $date;
+
+ }
+
+ /**
+ * Parses an iCalendar (RFC5545) formatted duration value.
+ *
+ * This method will either return a DateTimeInterval object, or a string
+ * suitable for strtotime or DateTime::modify.
+ *
+ * @param string $duration
+ * @param bool $asString
+ * @return DateInterval|string
+ */
+ static public function parseDuration($duration, $asString = false) {
+
+ $result = preg_match('/^(?P<plusminus>\+|-)?P((?P<week>\d+)W)?((?P<day>\d+)D)?(T((?P<hour>\d+)H)?((?P<minute>\d+)M)?((?P<second>\d+)S)?)?$/', $duration, $matches);
+ if (!$result) {
+ throw new \LogicException('The supplied iCalendar duration value is incorrect: ' . $duration);
+ }
+
+ if (!$asString) {
+ $invert = false;
+ if ($matches['plusminus']==='-') {
+ $invert = true;
+ }
+
+
+ $parts = array(
+ 'week',
+ 'day',
+ 'hour',
+ 'minute',
+ 'second',
+ );
+ foreach($parts as $part) {
+ $matches[$part] = isset($matches[$part])&&$matches[$part]?(int)$matches[$part]:0;
+ }
+
+
+ // We need to re-construct the $duration string, because weeks and
+ // days are not supported by DateInterval in the same string.
+ $duration = 'P';
+ $days = $matches['day'];
+ if ($matches['week']) {
+ $days+=$matches['week']*7;
+ }
+ if ($days)
+ $duration.=$days . 'D';
+
+ if ($matches['minute'] || $matches['second'] || $matches['hour']) {
+ $duration.='T';
+
+ if ($matches['hour'])
+ $duration.=$matches['hour'].'H';
+
+ if ($matches['minute'])
+ $duration.=$matches['minute'].'M';
+
+ if ($matches['second'])
+ $duration.=$matches['second'].'S';
+
+ }
+
+ if ($duration==='P') {
+ $duration = 'PT0S';
+ }
+ $iv = new \DateInterval($duration);
+ if ($invert) $iv->invert = true;
+
+ return $iv;
+
+ }
+
+
+
+ $parts = array(
+ 'week',
+ 'day',
+ 'hour',
+ 'minute',
+ 'second',
+ );
+
+ $newDur = '';
+ foreach($parts as $part) {
+ if (isset($matches[$part]) && $matches[$part]) {
+ $newDur.=' '.$matches[$part] . ' ' . $part . 's';
+ }
+ }
+
+ $newDur = ($matches['plusminus']==='-'?'-':'+') . trim($newDur);
+ if ($newDur === '+') { $newDur = '+0 seconds'; };
+ return $newDur;
+
+ }
+
+ /**
+ * Parses either a Date or DateTime, or Duration value.
+ *
+ * @param string $date
+ * @param DateTimeZone|string $referenceTZ
+ * @return DateTime|DateInterval
+ */
+ static public function parse($date, $referenceTZ = null) {
+
+ if ($date[0]==='P' || ($date[0]==='-' && $date[1]==='P')) {
+ return self::parseDuration($date);
+ } elseif (strlen($date)===8) {
+ return self::parseDate($date);
+ } else {
+ return self::parseDateTime($date, $referenceTZ);
+ }
+
+ }
+
+
+}
diff --git a/vendor/sabre/vobject/lib/Sabre/VObject/Document.php b/vendor/sabre/vobject/lib/Sabre/VObject/Document.php
new file mode 100644
index 000000000..50a662ee9
--- /dev/null
+++ b/vendor/sabre/vobject/lib/Sabre/VObject/Document.php
@@ -0,0 +1,109 @@
+<?php
+
+namespace Sabre\VObject;
+
+/**
+ * Document
+ *
+ * A document is just like a component, except that it's also the top level
+ * element.
+ *
+ * Both a VCALENDAR and a VCARD are considered documents.
+ *
+ * This class also provides a registry for document types.
+ *
+ * @copyright Copyright (C) 2007-2013 fruux GmbH. All rights reserved.
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
+ */
+abstract class Document extends Component {
+
+ /**
+ * The default name for this component.
+ *
+ * This should be 'VCALENDAR' or 'VCARD'.
+ *
+ * @var string
+ */
+ static $defaultName;
+
+ /**
+ * Creates a new document.
+ *
+ * We're changing the default behavior slightly here. First, we don't want
+ * to have to specify a name (we already know it), and we want to allow
+ * children to be specified in the first argument.
+ *
+ * But, the default behavior also works.
+ *
+ * So the two sigs:
+ *
+ * new Document(array $children = array());
+ * new Document(string $name, array $children = array())
+ *
+ * @return void
+ */
+ public function __construct() {
+
+ $args = func_get_args();
+ if (count($args)===0 || is_array($args[0])) {
+ array_unshift($args, static::$defaultName);
+ call_user_func_array(array('parent', '__construct'), $args);
+ } else {
+ call_user_func_array(array('parent', '__construct'), $args);
+ }
+
+ }
+
+ /**
+ * Creates a new component
+ *
+ * This method automatically searches for the correct component class, based
+ * on its name.
+ *
+ * You can specify the children either in key=>value syntax, in which case
+ * properties will automatically be created, or you can just pass a list of
+ * Component and Property object.
+ *
+ * @param string $name
+ * @param array $children
+ * @return Component
+ */
+ public function createComponent($name, array $children = array()) {
+
+ $component = Component::create($name);
+ foreach($children as $k=>$v) {
+
+ if ($v instanceof Node) {
+ $component->add($v);
+ } else {
+ $component->add($k, $v);
+ }
+
+ }
+ return $component;
+
+ }
+
+ /**
+ * Factory method for creating new properties
+ *
+ * This method automatically searches for the correct property class, based
+ * on its name.
+ *
+ * You can specify the parameters either in key=>value syntax, in which case
+ * parameters will automatically be created, or you can just pass a list of
+ * Parameter objects.
+ *
+ * @param string $name
+ * @param mixed $value
+ * @param array $parameters
+ * @return Property
+ */
+ public function createProperty($name, $value = null, array $parameters = array()) {
+
+ return Property::create($name, $value, $parameters);
+
+ }
+
+}
diff --git a/vendor/sabre/vobject/lib/Sabre/VObject/ElementList.php b/vendor/sabre/vobject/lib/Sabre/VObject/ElementList.php
new file mode 100644
index 000000000..1c203708e
--- /dev/null
+++ b/vendor/sabre/vobject/lib/Sabre/VObject/ElementList.php
@@ -0,0 +1,172 @@
+<?php
+
+namespace Sabre\VObject;
+
+/**
+ * VObject ElementList
+ *
+ * This class represents a list of elements. Lists are the result of queries,
+ * such as doing $vcalendar->vevent where there's multiple VEVENT objects.
+ *
+ * @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 ElementList implements \Iterator, \Countable, \ArrayAccess {
+
+ /**
+ * Inner elements
+ *
+ * @var array
+ */
+ protected $elements = array();
+
+ /**
+ * Creates the element list.
+ *
+ * @param array $elements
+ */
+ public function __construct(array $elements) {
+
+ $this->elements = $elements;
+
+ }
+
+ /* {{{ Iterator interface */
+
+ /**
+ * Current position
+ *
+ * @var int
+ */
+ private $key = 0;
+
+ /**
+ * Returns current item in iteration
+ *
+ * @return Element
+ */
+ public function current() {
+
+ return $this->elements[$this->key];
+
+ }
+
+ /**
+ * To the next item in the iterator
+ *
+ * @return void
+ */
+ public function next() {
+
+ $this->key++;
+
+ }
+
+ /**
+ * Returns the current iterator key
+ *
+ * @return int
+ */
+ public function key() {
+
+ return $this->key;
+
+ }
+
+ /**
+ * Returns true if the current position in the iterator is a valid one
+ *
+ * @return bool
+ */
+ public function valid() {
+
+ return isset($this->elements[$this->key]);
+
+ }
+
+ /**
+ * Rewinds the iterator
+ *
+ * @return void
+ */
+ public function rewind() {
+
+ $this->key = 0;
+
+ }
+
+ /* }}} */
+
+ /* {{{ Countable interface */
+
+ /**
+ * Returns the number of elements
+ *
+ * @return int
+ */
+ public function count() {
+
+ return count($this->elements);
+
+ }
+
+ /* }}} */
+
+ /* {{{ ArrayAccess Interface */
+
+
+ /**
+ * Checks if an item exists through ArrayAccess.
+ *
+ * @param int $offset
+ * @return bool
+ */
+ public function offsetExists($offset) {
+
+ return isset($this->elements[$offset]);
+
+ }
+
+ /**
+ * Gets an item through ArrayAccess.
+ *
+ * @param int $offset
+ * @return mixed
+ */
+ public function offsetGet($offset) {
+
+ return $this->elements[$offset];
+
+ }
+
+ /**
+ * Sets an item through ArrayAccess.
+ *
+ * @param int $offset
+ * @param mixed $value
+ * @return void
+ */
+ public function offsetSet($offset,$value) {
+
+ throw new \LogicException('You can not add new objects to an ElementList');
+
+ }
+
+ /**
+ * Sets an item through ArrayAccess.
+ *
+ * This method just forwards the request to the inner iterator
+ *
+ * @param int $offset
+ * @return void
+ */
+ public function offsetUnset($offset) {
+
+ throw new \LogicException('You can not remove objects from an ElementList');
+
+ }
+
+ /* }}} */
+
+}
diff --git a/vendor/sabre/vobject/lib/Sabre/VObject/FreeBusyGenerator.php b/vendor/sabre/vobject/lib/Sabre/VObject/FreeBusyGenerator.php
new file mode 100644
index 000000000..96d0be5ac
--- /dev/null
+++ b/vendor/sabre/vobject/lib/Sabre/VObject/FreeBusyGenerator.php
@@ -0,0 +1,322 @@
+<?php
+
+namespace Sabre\VObject;
+
+/**
+ * This class helps with generating FREEBUSY reports based on existing sets of
+ * objects.
+ *
+ * It only looks at VEVENT and VFREEBUSY objects from the sourcedata, and
+ * generates a single VFREEBUSY object.
+ *
+ * VFREEBUSY components are described in RFC5545, The rules for what should
+ * go in a single freebusy report is taken from RFC4791, section 7.10.
+ *
+ * @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 FreeBusyGenerator {
+
+ /**
+ * Input objects
+ *
+ * @var array
+ */
+ protected $objects;
+
+ /**
+ * Start of range
+ *
+ * @var DateTime|null
+ */
+ protected $start;
+
+ /**
+ * End of range
+ *
+ * @var DateTime|null
+ */
+ protected $end;
+
+ /**
+ * VCALENDAR object
+ *
+ * @var Component
+ */
+ protected $baseObject;
+
+ /**
+ * Creates the generator.
+ *
+ * Check the setTimeRange and setObjects methods for details about the
+ * arguments.
+ *
+ * @param DateTime $start
+ * @param DateTime $end
+ * @param mixed $objects
+ * @return void
+ */
+ public function __construct(\DateTime $start = null, \DateTime $end = null, $objects = null) {
+
+ if ($start && $end) {
+ $this->setTimeRange($start, $end);
+ }
+
+ if ($objects) {
+ $this->setObjects($objects);
+ }
+
+ }
+
+ /**
+ * Sets the VCALENDAR object.
+ *
+ * If this is set, it will not be generated for you. You are responsible
+ * for setting things like the METHOD, CALSCALE, VERSION, etc..
+ *
+ * The VFREEBUSY object will be automatically added though.
+ *
+ * @param Component $vcalendar
+ * @return void
+ */
+ public function setBaseObject(Component $vcalendar) {
+
+ $this->baseObject = $vcalendar;
+
+ }
+
+ /**
+ * Sets the input objects
+ *
+ * You must either specify a valendar object as a strong, or as the parse
+ * Component.
+ * It's also possible to specify multiple objects as an array.
+ *
+ * @param mixed $objects
+ * @return void
+ */
+ public function setObjects($objects) {
+
+ if (!is_array($objects)) {
+ $objects = array($objects);
+ }
+
+ $this->objects = array();
+ foreach($objects as $object) {
+
+ if (is_string($object)) {
+ $this->objects[] = Reader::read($object);
+ } elseif ($object instanceof Component) {
+ $this->objects[] = $object;
+ } else {
+ throw new \InvalidArgumentException('You can only pass strings or \\Sabre\\VObject\\Component arguments to setObjects');
+ }
+
+ }
+
+ }
+
+ /**
+ * Sets the time range
+ *
+ * Any freebusy object falling outside of this time range will be ignored.
+ *
+ * @param DateTime $start
+ * @param DateTime $end
+ * @return void
+ */
+ public function setTimeRange(\DateTime $start = null, \DateTime $end = null) {
+
+ $this->start = $start;
+ $this->end = $end;
+
+ }
+
+ /**
+ * Parses the input data and returns a correct VFREEBUSY object, wrapped in
+ * a VCALENDAR.
+ *
+ * @return Component
+ */
+ public function getResult() {
+
+ $busyTimes = array();
+
+ foreach($this->objects as $object) {
+
+ foreach($object->getBaseComponents() as $component) {
+
+ switch($component->name) {
+
+ case 'VEVENT' :
+
+ $FBTYPE = 'BUSY';
+ if (isset($component->TRANSP) && (strtoupper($component->TRANSP) === 'TRANSPARENT')) {
+ break;
+ }
+ if (isset($component->STATUS)) {
+ $status = strtoupper($component->STATUS);
+ if ($status==='CANCELLED') {
+ break;
+ }
+ if ($status==='TENTATIVE') {
+ $FBTYPE = 'BUSY-TENTATIVE';
+ }
+ }
+
+ $times = array();
+
+ if ($component->RRULE) {
+
+ $iterator = new RecurrenceIterator($object, (string)$component->uid);
+ if ($this->start) {
+ $iterator->fastForward($this->start);
+ }
+
+ $maxRecurrences = 200;
+
+ while($iterator->valid() && --$maxRecurrences) {
+
+ $startTime = $iterator->getDTStart();
+ if ($this->end && $startTime > $this->end) {
+ break;
+ }
+ $times[] = array(
+ $iterator->getDTStart(),
+ $iterator->getDTEnd(),
+ );
+
+ $iterator->next();
+
+ }
+
+ } else {
+
+ $startTime = $component->DTSTART->getDateTime();
+ if ($this->end && $startTime > $this->end) {
+ break;
+ }
+ $endTime = null;
+ if (isset($component->DTEND)) {
+ $endTime = $component->DTEND->getDateTime();
+ } elseif (isset($component->DURATION)) {
+ $duration = DateTimeParser::parseDuration((string)$component->DURATION);
+ $endTime = clone $startTime;
+ $endTime->add($duration);
+ } elseif ($component->DTSTART->getDateType() === Property\DateTime::DATE) {
+ $endTime = clone $startTime;
+ $endTime->modify('+1 day');
+ } else {
+ // The event had no duration (0 seconds)
+ break;
+ }
+
+ $times[] = array($startTime, $endTime);
+
+ }
+
+ foreach($times as $time) {
+
+ if ($this->end && $time[0] > $this->end) break;
+ if ($this->start && $time[1] < $this->start) break;
+
+ $busyTimes[] = array(
+ $time[0],
+ $time[1],
+ $FBTYPE,
+ );
+ }
+ break;
+
+ case 'VFREEBUSY' :
+ foreach($component->FREEBUSY as $freebusy) {
+
+ $fbType = isset($freebusy['FBTYPE'])?strtoupper($freebusy['FBTYPE']):'BUSY';
+
+ // Skipping intervals marked as 'free'
+ if ($fbType==='FREE')
+ continue;
+
+ $values = explode(',', $freebusy);
+ foreach($values as $value) {
+ list($startTime, $endTime) = explode('/', $value);
+ $startTime = DateTimeParser::parseDateTime($startTime);
+
+ if (substr($endTime,0,1)==='P' || substr($endTime,0,2)==='-P') {
+ $duration = DateTimeParser::parseDuration($endTime);
+ $endTime = clone $startTime;
+ $endTime->add($duration);
+ } else {
+ $endTime = DateTimeParser::parseDateTime($endTime);
+ }
+
+ if($this->start && $this->start > $endTime) continue;
+ if($this->end && $this->end < $startTime) continue;
+ $busyTimes[] = array(
+ $startTime,
+ $endTime,
+ $fbType
+ );
+
+ }
+
+
+ }
+ break;
+
+
+
+ }
+
+
+ }
+
+ }
+
+ if ($this->baseObject) {
+ $calendar = $this->baseObject;
+ } else {
+ $calendar = Component::create('VCALENDAR');
+ $calendar->version = '2.0';
+ $calendar->prodid = '-//Sabre//Sabre VObject ' . Version::VERSION . '//EN';
+ $calendar->calscale = 'GREGORIAN';
+ }
+
+ $vfreebusy = Component::create('VFREEBUSY');
+ $calendar->add($vfreebusy);
+
+ if ($this->start) {
+ $dtstart = Property::create('DTSTART');
+ $dtstart->setDateTime($this->start,Property\DateTime::UTC);
+ $vfreebusy->add($dtstart);
+ }
+ if ($this->end) {
+ $dtend = Property::create('DTEND');
+ $dtend->setDateTime($this->end,Property\DateTime::UTC);
+ $vfreebusy->add($dtend);
+ }
+ $dtstamp = Property::create('DTSTAMP');
+ $dtstamp->setDateTime(new \DateTime('now'), Property\DateTime::UTC);
+ $vfreebusy->add($dtstamp);
+
+ foreach($busyTimes as $busyTime) {
+
+ $busyTime[0]->setTimeZone(new \DateTimeZone('UTC'));
+ $busyTime[1]->setTimeZone(new \DateTimeZone('UTC'));
+
+ $prop = Property::create(
+ 'FREEBUSY',
+ $busyTime[0]->format('Ymd\\THis\\Z') . '/' . $busyTime[1]->format('Ymd\\THis\\Z')
+ );
+ $prop['FBTYPE'] = $busyTime[2];
+ $vfreebusy->add($prop);
+
+ }
+
+ return $calendar;
+
+ }
+
+}
+
diff --git a/vendor/sabre/vobject/lib/Sabre/VObject/Node.php b/vendor/sabre/vobject/lib/Sabre/VObject/Node.php
new file mode 100644
index 000000000..bee68ec2a
--- /dev/null
+++ b/vendor/sabre/vobject/lib/Sabre/VObject/Node.php
@@ -0,0 +1,187 @@
+<?php
+
+namespace Sabre\VObject;
+
+/**
+ * Base class for all nodes
+ *
+ * @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
+ */
+abstract class Node implements \IteratorAggregate, \ArrayAccess, \Countable {
+
+ /**
+ * The following constants are used by the validate() method.
+ */
+ const REPAIR = 1;
+
+ /**
+ * Turns the object back into a serialized blob.
+ *
+ * @return string
+ */
+ abstract function serialize();
+
+ /**
+ * Iterator override
+ *
+ * @var ElementList
+ */
+ protected $iterator = null;
+
+ /**
+ * A link to the parent node
+ *
+ * @var Node
+ */
+ public $parent = null;
+
+ /**
+ * 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) {
+
+ return array();
+
+ }
+
+ /* {{{ IteratorAggregator interface */
+
+ /**
+ * Returns the iterator for this object
+ *
+ * @return ElementList
+ */
+ public function getIterator() {
+
+ if (!is_null($this->iterator))
+ return $this->iterator;
+
+ return new ElementList(array($this));
+
+ }
+
+ /**
+ * Sets the overridden iterator
+ *
+ * Note that this is not actually part of the iterator interface
+ *
+ * @param ElementList $iterator
+ * @return void
+ */
+ public function setIterator(ElementList $iterator) {
+
+ $this->iterator = $iterator;
+
+ }
+
+ /* }}} */
+
+ /* {{{ Countable interface */
+
+ /**
+ * Returns the number of elements
+ *
+ * @return int
+ */
+ public function count() {
+
+ $it = $this->getIterator();
+ return $it->count();
+
+ }
+
+ /* }}} */
+
+ /* {{{ ArrayAccess Interface */
+
+
+ /**
+ * Checks if an item exists through ArrayAccess.
+ *
+ * This method just forwards the request to the inner iterator
+ *
+ * @param int $offset
+ * @return bool
+ */
+ public function offsetExists($offset) {
+
+ $iterator = $this->getIterator();
+ return $iterator->offsetExists($offset);
+
+ }
+
+ /**
+ * Gets an item through ArrayAccess.
+ *
+ * This method just forwards the request to the inner iterator
+ *
+ * @param int $offset
+ * @return mixed
+ */
+ public function offsetGet($offset) {
+
+ $iterator = $this->getIterator();
+ return $iterator->offsetGet($offset);
+
+ }
+
+ /**
+ * Sets an item through ArrayAccess.
+ *
+ * This method just forwards the request to the inner iterator
+ *
+ * @param int $offset
+ * @param mixed $value
+ * @return void
+ */
+ public function offsetSet($offset,$value) {
+
+ $iterator = $this->getIterator();
+ $iterator->offsetSet($offset,$value);
+
+ // @codeCoverageIgnoreStart
+ //
+ // This method always throws an exception, so we ignore the closing
+ // brace
+ }
+ // @codeCoverageIgnoreEnd
+
+ /**
+ * Sets an item through ArrayAccess.
+ *
+ * This method just forwards the request to the inner iterator
+ *
+ * @param int $offset
+ * @return void
+ */
+ public function offsetUnset($offset) {
+
+ $iterator = $this->getIterator();
+ $iterator->offsetUnset($offset);
+
+ // @codeCoverageIgnoreStart
+ //
+ // This method always throws an exception, so we ignore the closing
+ // brace
+ }
+ // @codeCoverageIgnoreEnd
+
+ /* }}} */
+
+}
diff --git a/vendor/sabre/vobject/lib/Sabre/VObject/Parameter.php b/vendor/sabre/vobject/lib/Sabre/VObject/Parameter.php
new file mode 100644
index 000000000..72bf03b47
--- /dev/null
+++ b/vendor/sabre/vobject/lib/Sabre/VObject/Parameter.php
@@ -0,0 +1,104 @@
+<?php
+
+namespace Sabre\VObject;
+
+/**
+ * VObject Parameter
+ *
+ * This class represents a parameter. A parameter is always tied to a property.
+ * In the case of:
+ * DTSTART;VALUE=DATE:20101108
+ * VALUE=DATE would be the parameter name and value.
+ *
+ * @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 Parameter extends Node {
+
+ /**
+ * Parameter name
+ *
+ * @var string
+ */
+ public $name;
+
+ /**
+ * Parameter value
+ *
+ * @var string
+ */
+ public $value;
+
+ /**
+ * Sets up the object
+ *
+ * @param string $name
+ * @param string $value
+ */
+ public function __construct($name, $value = null) {
+
+ if (!is_scalar($value) && !is_null($value)) {
+ throw new \InvalidArgumentException('The value argument must be a scalar value or null');
+ }
+
+ $this->name = strtoupper($name);
+ $this->value = $value;
+
+ }
+
+ /**
+ * Returns the parameter's internal value.
+ *
+ * @return string
+ */
+ public function getValue() {
+
+ return $this->value;
+
+ }
+
+
+ /**
+ * Turns the object back into a serialized blob.
+ *
+ * @return string
+ */
+ public function serialize() {
+
+ if (is_null($this->value)) {
+ return $this->name;
+ }
+ $src = array(
+ '\\',
+ "\n",
+ ';',
+ ',',
+ );
+ $out = array(
+ '\\\\',
+ '\n',
+ '\;',
+ '\,',
+ );
+
+ $value = str_replace($src, $out, $this->value);
+ if (strpos($value,":")!==false) {
+ $value = '"' . $value . '"';
+ }
+ return $this->name . '=' . $value;
+
+ }
+
+ /**
+ * Called when this object is being cast to a string
+ *
+ * @return string
+ */
+ public function __toString() {
+
+ return $this->value;
+
+ }
+
+}
diff --git a/vendor/sabre/vobject/lib/Sabre/VObject/ParseException.php b/vendor/sabre/vobject/lib/Sabre/VObject/ParseException.php
new file mode 100644
index 000000000..66b49c606
--- /dev/null
+++ b/vendor/sabre/vobject/lib/Sabre/VObject/ParseException.php
@@ -0,0 +1,12 @@
+<?php
+
+namespace Sabre\VObject;
+
+/**
+ * Exception thrown by Reader if an invalid object was attempted to be parsed.
+ *
+ * @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 ParseException extends \Exception { }
diff --git a/vendor/sabre/vobject/lib/Sabre/VObject/Property.php b/vendor/sabre/vobject/lib/Sabre/VObject/Property.php
new file mode 100644
index 000000000..63ae64574
--- /dev/null
+++ b/vendor/sabre/vobject/lib/Sabre/VObject/Property.php
@@ -0,0 +1,444 @@
+<?php
+
+namespace Sabre\VObject;
+
+/**
+ * VObject Property
+ *
+ * A property in VObject is usually in the form PARAMNAME:paramValue.
+ * An example is : SUMMARY:Weekly meeting
+ *
+ * Properties can also have parameters:
+ * SUMMARY;LANG=en:Weekly meeting.
+ *
+ * Parameters can be accessed using the ArrayAccess interface.
+ *
+ * @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 Property extends Node {
+
+ /**
+ * Propertyname
+ *
+ * @var string
+ */
+ public $name;
+
+ /**
+ * Group name
+ *
+ * This may be something like 'HOME' for vcards.
+ *
+ * @var string
+ */
+ public $group;
+
+ /**
+ * Property parameters
+ *
+ * @var array
+ */
+ public $parameters = array();
+
+ /**
+ * Property value
+ *
+ * @var string
+ */
+ public $value;
+
+ /**
+ * If properties 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(
+ 'COMPLETED' => 'Sabre\\VObject\\Property\\DateTime',
+ 'CREATED' => 'Sabre\\VObject\\Property\\DateTime',
+ 'DTEND' => 'Sabre\\VObject\\Property\\DateTime',
+ 'DTSTAMP' => 'Sabre\\VObject\\Property\\DateTime',
+ 'DTSTART' => 'Sabre\\VObject\\Property\\DateTime',
+ 'DUE' => 'Sabre\\VObject\\Property\\DateTime',
+ 'EXDATE' => 'Sabre\\VObject\\Property\\MultiDateTime',
+ 'LAST-MODIFIED' => 'Sabre\\VObject\\Property\\DateTime',
+ 'RECURRENCE-ID' => 'Sabre\\VObject\\Property\\DateTime',
+ 'TRIGGER' => 'Sabre\\VObject\\Property\\DateTime',
+ 'N' => 'Sabre\\VObject\\Property\\Compound',
+ 'ORG' => 'Sabre\\VObject\\Property\\Compound',
+ 'ADR' => 'Sabre\\VObject\\Property\\Compound',
+ 'CATEGORIES' => 'Sabre\\VObject\\Property\\Compound',
+ );
+
+ /**
+ * Creates the new property by name, but in addition will also see if
+ * there's a class mapped to the property name.
+ *
+ * Parameters can be specified with the optional third argument. Parameters
+ * must be a key->value map of the parameter name, and value. If the value
+ * is specified as an array, it is assumed that multiple parameters with
+ * the same name should be added.
+ *
+ * @param string $name
+ * @param string $value
+ * @param array $parameters
+ * @return Property
+ */
+ static public function create($name, $value = null, array $parameters = array()) {
+
+ $name = strtoupper($name);
+ $shortName = $name;
+ $group = null;
+ if (strpos($shortName,'.')!==false) {
+ list($group, $shortName) = explode('.', $shortName);
+ }
+
+ if (isset(self::$classMap[$shortName])) {
+ return new self::$classMap[$shortName]($name, $value, $parameters);
+ } else {
+ return new self($name, $value, $parameters);
+ }
+
+ }
+
+ /**
+ * Creates a new property object
+ *
+ * Parameters can be specified with the optional third argument. Parameters
+ * must be a key->value map of the parameter name, and value. If the value
+ * is specified as an array, it is assumed that multiple parameters with
+ * the same name should be added.
+ *
+ * @param string $name
+ * @param string $value
+ * @param array $parameters
+ */
+ public function __construct($name, $value = null, array $parameters = array()) {
+
+ if (!is_scalar($value) && !is_null($value)) {
+ throw new \InvalidArgumentException('The value argument must be scalar or null');
+ }
+
+ $name = strtoupper($name);
+ $group = null;
+ if (strpos($name,'.')!==false) {
+ list($group, $name) = explode('.', $name);
+ }
+ $this->name = $name;
+ $this->group = $group;
+ $this->setValue($value);
+
+ foreach($parameters as $paramName => $paramValues) {
+
+ if (!is_array($paramValues)) {
+ $paramValues = array($paramValues);
+ }
+
+ foreach($paramValues as $paramValue) {
+ $this->add($paramName, $paramValue);
+ }
+
+ }
+
+ }
+
+ /**
+ * Updates the internal value
+ *
+ * @param string $value
+ * @return void
+ */
+ public function setValue($value) {
+
+ $this->value = $value;
+
+ }
+
+ /**
+ * Returns the internal value
+ *
+ * @param string $value
+ * @return string
+ */
+ public function getValue() {
+
+ return $this->value;
+
+ }
+
+ /**
+ * Turns the object back into a serialized blob.
+ *
+ * @return string
+ */
+ public function serialize() {
+
+ $str = $this->name;
+ if ($this->group) $str = $this->group . '.' . $this->name;
+
+ foreach($this->parameters as $param) {
+
+ $str.=';' . $param->serialize();
+
+ }
+
+ $src = array(
+ '\\',
+ "\n",
+ "\r",
+ );
+ $out = array(
+ '\\\\',
+ '\n',
+ '',
+ );
+ $str.=':' . str_replace($src, $out, $this->value);
+
+ $out = '';
+ while(strlen($str)>0) {
+ if (strlen($str)>75) {
+ $out.= mb_strcut($str,0,75,'utf-8') . "\r\n";
+ $str = ' ' . mb_strcut($str,75,strlen($str),'utf-8');
+ } else {
+ $out.=$str . "\r\n";
+ $str='';
+ break;
+ }
+ }
+
+ return $out;
+
+ }
+
+ /**
+ * Adds a new componenten or element
+ *
+ * You can call this method with the following syntaxes:
+ *
+ * add(Parameter $element)
+ * add(string $name, $value)
+ *
+ * The first version adds an Parameter
+ * The second adds a property as a string.
+ *
+ * @param mixed $item
+ * @param mixed $itemValue
+ * @return void
+ */
+ public function add($item, $itemValue = null) {
+
+ if ($item instanceof Parameter) {
+ if (!is_null($itemValue)) {
+ throw new \InvalidArgumentException('The second argument must not be specified, when passing a VObject');
+ }
+ $item->parent = $this;
+ $this->parameters[] = $item;
+ } elseif(is_string($item)) {
+
+ $parameter = new Parameter($item,$itemValue);
+ $parameter->parent = $this;
+ $this->parameters[] = $parameter;
+
+ } else {
+
+ throw new \InvalidArgumentException('The first argument must either be a Node a string');
+
+ }
+
+ }
+
+ /* ArrayAccess interface {{{ */
+
+ /**
+ * Checks if an array element exists
+ *
+ * @param mixed $name
+ * @return bool
+ */
+ public function offsetExists($name) {
+
+ if (is_int($name)) return parent::offsetExists($name);
+
+ $name = strtoupper($name);
+
+ foreach($this->parameters as $parameter) {
+ if ($parameter->name == $name) return true;
+ }
+ return false;
+
+ }
+
+ /**
+ * Returns a parameter, or parameter list.
+ *
+ * @param string $name
+ * @return Node
+ */
+ public function offsetGet($name) {
+
+ if (is_int($name)) return parent::offsetGet($name);
+ $name = strtoupper($name);
+
+ $result = array();
+ foreach($this->parameters as $parameter) {
+ if ($parameter->name == $name)
+ $result[] = $parameter;
+ }
+
+ if (count($result)===0) {
+ return null;
+ } elseif (count($result)===1) {
+ return $result[0];
+ } else {
+ $result[0]->setIterator(new ElementList($result));
+ return $result[0];
+ }
+
+ }
+
+ /**
+ * Creates a new parameter
+ *
+ * @param string $name
+ * @param mixed $value
+ * @return void
+ */
+ public function offsetSet($name, $value) {
+
+ if (is_int($name)) parent::offsetSet($name, $value);
+
+ if (is_scalar($value)) {
+ if (!is_string($name))
+ throw new \InvalidArgumentException('A parameter name must be specified. This means you cannot use the $array[]="string" to add parameters.');
+
+ $this->offsetUnset($name);
+ $parameter = new Parameter($name, $value);
+ $parameter->parent = $this;
+ $this->parameters[] = $parameter;
+
+ } elseif ($value instanceof Parameter) {
+ if (!is_null($name))
+ throw new \InvalidArgumentException('Don\'t specify a parameter name if you\'re passing a \\Sabre\\VObject\\Parameter. Add using $array[]=$parameterObject.');
+
+ $value->parent = $this;
+ $this->parameters[] = $value;
+ } else {
+ throw new \InvalidArgumentException('You can only add parameters to the property object');
+ }
+
+ }
+
+ /**
+ * Removes one or more parameters with the specified name
+ *
+ * @param string $name
+ * @return void
+ */
+ public function offsetUnset($name) {
+
+ if (is_int($name)) parent::offsetUnset($name);
+ $name = strtoupper($name);
+
+ foreach($this->parameters as $key=>$parameter) {
+ if ($parameter->name == $name) {
+ $parameter->parent = null;
+ unset($this->parameters[$key]);
+ }
+
+ }
+
+ }
+
+ /* }}} */
+
+ /**
+ * Called when this object is being cast to a string
+ *
+ * @return string
+ */
+ public function __toString() {
+
+ return (string)$this->value;
+
+ }
+
+ /**
+ * 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->parameters as $key=>$child) {
+ $this->parameters[$key] = clone $child;
+ $this->parameters[$key]->parent = $this;
+ }
+
+ }
+
+ /**
+ * 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) {
+
+ $warnings = array();
+
+ // Checking if our value is UTF-8
+ if (!StringUtil::isUTF8($this->value)) {
+ $warnings[] = array(
+ 'level' => 1,
+ 'message' => 'Property is not valid UTF-8!',
+ 'node' => $this,
+ );
+ if ($options & self::REPAIR) {
+ $this->value = StringUtil::convertToUTF8($this->value);
+ }
+ }
+
+ // Checking if the propertyname does not contain any invalid bytes.
+ if (!preg_match('/^([A-Z0-9-]+)$/', $this->name)) {
+ $warnings[] = array(
+ 'level' => 1,
+ 'message' => 'The propertyname: ' . $this->name . ' contains invalid characters. Only A-Z, 0-9 and - are allowed',
+ 'node' => $this,
+ );
+ if ($options & self::REPAIR) {
+ // Uppercasing and converting underscores to dashes.
+ $this->name = strtoupper(
+ str_replace('_', '-', $this->name)
+ );
+ // Removing every other invalid character
+ $this->name = preg_replace('/([^A-Z0-9-])/u', '', $this->name);
+
+ }
+
+ }
+
+ // Validating inner parameters
+ foreach($this->parameters as $param) {
+ $warnings = array_merge($warnings, $param->validate($options));
+ }
+
+ return $warnings;
+
+ }
+
+}
diff --git a/vendor/sabre/vobject/lib/Sabre/VObject/Property/Compound.php b/vendor/sabre/vobject/lib/Sabre/VObject/Property/Compound.php
new file mode 100644
index 000000000..26f090069
--- /dev/null
+++ b/vendor/sabre/vobject/lib/Sabre/VObject/Property/Compound.php
@@ -0,0 +1,125 @@
+<?php
+
+namespace Sabre\VObject\Property;
+
+use Sabre\VObject;
+
+/**
+ * Compound property.
+ *
+ * This class adds (de)serialization of compound properties to/from arrays.
+ *
+ * Currently the following properties from RFC 6350 are mapped to use this
+ * class:
+ *
+ * N: Section 6.2.2
+ * ADR: Section 6.3.1
+ * ORG: Section 6.6.4
+ * CATEGORIES: Section 6.7.1
+ *
+ * In order to use this correctly, you must call setParts and getParts to
+ * retrieve and modify dates respectively.
+ *
+ * @author Thomas Tanghus (http://tanghus.net/)
+ * @author Lars Kneschke
+ * @author Evert Pot (http://evertpot.com/)
+ * @copyright Copyright (C) 2007-2013 fruux GmbH (https://fruux.com/).
+ * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
+ */
+class Compound extends VObject\Property {
+
+ /**
+ * If property names are added to this map, they will be (de)serialised as arrays
+ * using the getParts() and setParts() methods.
+ * The keys are the property names, values are delimiter chars.
+ *
+ * @var array
+ */
+ static public $delimiterMap = array(
+ 'N' => ';',
+ 'ADR' => ';',
+ 'ORG' => ';',
+ 'CATEGORIES' => ',',
+ );
+
+ /**
+ * The currently used delimiter.
+ *
+ * @var string
+ */
+ protected $delimiter = null;
+
+ /**
+ * Get a compound value as an array.
+ *
+ * @param $name string
+ * @return array
+ */
+ public function getParts() {
+
+ if (is_null($this->value)) {
+ return array();
+ }
+
+ $delimiter = $this->getDelimiter();
+
+ // split by any $delimiter which is NOT prefixed by a slash.
+ // Note that this is not a a perfect solution. If a value is prefixed
+ // by two slashes, it should actually be split anyway.
+ //
+ // Hopefully we can fix this better in a future version, where we can
+ // break compatibility a bit.
+ $compoundValues = preg_split("/(?<!\\\)$delimiter/", $this->value);
+
+ // remove slashes from any semicolon and comma left escaped in the single values
+ $compoundValues = array_map(
+ function($val) {
+ return strtr($val, array('\,' => ',', '\;' => ';'));
+ }, $compoundValues);
+
+ return $compoundValues;
+
+ }
+
+ /**
+ * Returns the delimiter for this property.
+ *
+ * @return string
+ */
+ public function getDelimiter() {
+
+ if (!$this->delimiter) {
+ if (isset(self::$delimiterMap[$this->name])) {
+ $this->delimiter = self::$delimiterMap[$this->name];
+ } else {
+ // To be a bit future proof, we are going to default the
+ // delimiter to ;
+ $this->delimiter = ';';
+ }
+ }
+ return $this->delimiter;
+
+ }
+
+ /**
+ * Set a compound value as an array.
+ *
+ *
+ * @param $name string
+ * @return array
+ */
+ public function setParts(array $values) {
+
+ // add slashes to all semicolons and commas in the single values
+ $values = array_map(
+ function($val) {
+ return strtr($val, array(',' => '\,', ';' => '\;'));
+ }, $values);
+
+ $this->setValue(
+ implode($this->getDelimiter(), $values)
+ );
+
+ }
+
+}
diff --git a/vendor/sabre/vobject/lib/Sabre/VObject/Property/DateTime.php b/vendor/sabre/vobject/lib/Sabre/VObject/Property/DateTime.php
new file mode 100644
index 000000000..95e9b0209
--- /dev/null
+++ b/vendor/sabre/vobject/lib/Sabre/VObject/Property/DateTime.php
@@ -0,0 +1,245 @@
+<?php
+
+namespace Sabre\VObject\Property;
+
+use Sabre\VObject;
+
+/**
+ * DateTime property
+ *
+ * This element is used for iCalendar properties such as the DTSTART property.
+ * It basically provides a few helper functions that make it easier to deal
+ * with these. It supports both DATE-TIME and DATE values.
+ *
+ * In order to use this correctly, you must call setDateTime and getDateTime to
+ * retrieve and modify dates respectively.
+ *
+ * If you use the 'value' or properties directly, this object does not keep
+ * reference and results might appear incorrectly.
+ *
+ * @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 DateTime extends VObject\Property {
+
+ /**
+ * Local 'floating' time
+ */
+ const LOCAL = 1;
+
+ /**
+ * UTC-based time
+ */
+ const UTC = 2;
+
+ /**
+ * Local time plus timezone
+ */
+ const LOCALTZ = 3;
+
+ /**
+ * Only a date, time is ignored
+ */
+ const DATE = 4;
+
+ /**
+ * DateTime representation
+ *
+ * @var \DateTime
+ */
+ protected $dateTime;
+
+ /**
+ * dateType
+ *
+ * @var int
+ */
+ protected $dateType;
+
+ /**
+ * Updates the Date and Time.
+ *
+ * @param \DateTime $dt
+ * @param int $dateType
+ * @return void
+ */
+ public function setDateTime(\DateTime $dt, $dateType = self::LOCALTZ) {
+
+ switch($dateType) {
+
+ case self::LOCAL :
+ $this->setValue($dt->format('Ymd\\THis'));
+ $this->offsetUnset('VALUE');
+ $this->offsetUnset('TZID');
+ $this->offsetSet('VALUE','DATE-TIME');
+ break;
+ case self::UTC :
+ $dt->setTimeZone(new \DateTimeZone('UTC'));
+ $this->setValue($dt->format('Ymd\\THis\\Z'));
+ $this->offsetUnset('VALUE');
+ $this->offsetUnset('TZID');
+ $this->offsetSet('VALUE','DATE-TIME');
+ break;
+ case self::LOCALTZ :
+ $this->setValue($dt->format('Ymd\\THis'));
+ $this->offsetUnset('VALUE');
+ $this->offsetUnset('TZID');
+ $this->offsetSet('VALUE','DATE-TIME');
+ $this->offsetSet('TZID', $dt->getTimeZone()->getName());
+ break;
+ case self::DATE :
+ $this->setValue($dt->format('Ymd'));
+ $this->offsetUnset('VALUE');
+ $this->offsetUnset('TZID');
+ $this->offsetSet('VALUE','DATE');
+ break;
+ default :
+ throw new \InvalidArgumentException('You must pass a valid dateType constant');
+
+ }
+ $this->dateTime = $dt;
+ $this->dateType = $dateType;
+
+ }
+
+ /**
+ * Returns the current DateTime value.
+ *
+ * If no value was set, this method returns null.
+ *
+ * @return \DateTime|null
+ */
+ public function getDateTime() {
+
+ if ($this->dateTime)
+ return $this->dateTime;
+
+ list(
+ $this->dateType,
+ $this->dateTime
+ ) = self::parseData($this->value, $this);
+ return $this->dateTime;
+
+ }
+
+ /**
+ * Returns the type of Date format.
+ *
+ * This method returns one of the format constants. If no date was set,
+ * this method will return null.
+ *
+ * @return int|null
+ */
+ public function getDateType() {
+
+ if ($this->dateType)
+ return $this->dateType;
+
+ list(
+ $this->dateType,
+ $this->dateTime,
+ ) = self::parseData($this->value, $this);
+ return $this->dateType;
+
+ }
+
+ /**
+ * This method will return true, if the property had a date and a time, as
+ * opposed to only a date.
+ *
+ * @return bool
+ */
+ public function hasTime() {
+
+ return $this->getDateType()!==self::DATE;
+
+ }
+
+ /**
+ * Parses the internal data structure to figure out what the current date
+ * and time is.
+ *
+ * The returned array contains two elements:
+ * 1. A 'DateType' constant (as defined on this class), or null.
+ * 2. A DateTime object (or null)
+ *
+ * @param string|null $propertyValue The string to parse (yymmdd or
+ * ymmddThhmmss, etc..)
+ * @param \Sabre\VObject\Property|null $property The instance of the
+ * property we're parsing.
+ * @return array
+ */
+ static public function parseData($propertyValue, VObject\Property $property = null) {
+
+ if (is_null($propertyValue)) {
+ return array(null, null);
+ }
+
+ $date = '(?P<year>[1-2][0-9]{3})(?P<month>[0-1][0-9])(?P<date>[0-3][0-9])';
+ $time = '(?P<hour>[0-2][0-9])(?P<minute>[0-5][0-9])(?P<second>[0-5][0-9])';
+ $regex = "/^$date(T$time(?P<isutc>Z)?)?$/";
+
+ if (!preg_match($regex, $propertyValue, $matches)) {
+ throw new \InvalidArgumentException($propertyValue . ' is not a valid \DateTime or Date string');
+ }
+
+ if (!isset($matches['hour'])) {
+ // Date-only
+ return array(
+ self::DATE,
+ new \DateTime($matches['year'] . '-' . $matches['month'] . '-' . $matches['date'] . ' 00:00:00', new \DateTimeZone('UTC')),
+ );
+ }
+
+ $dateStr =
+ $matches['year'] .'-' .
+ $matches['month'] . '-' .
+ $matches['date'] . ' ' .
+ $matches['hour'] . ':' .
+ $matches['minute'] . ':' .
+ $matches['second'];
+
+ if (isset($matches['isutc'])) {
+ $dt = new \DateTime($dateStr,new \DateTimeZone('UTC'));
+ $dt->setTimeZone(new \DateTimeZone('UTC'));
+ return array(
+ self::UTC,
+ $dt
+ );
+ }
+
+ // Finding the timezone.
+ $tzid = $property['TZID'];
+ if (!$tzid) {
+ // This was a floating time string. This implies we use the
+ // timezone from date_default_timezone_set / date.timezone ini
+ // setting.
+ return array(
+ self::LOCAL,
+ new \DateTime($dateStr)
+ );
+ }
+
+ // To look up the timezone, we must first find the VCALENDAR component.
+ $root = $property;
+ while($root->parent) {
+ $root = $root->parent;
+ }
+ if ($root->name === 'VCALENDAR') {
+ $tz = VObject\TimeZoneUtil::getTimeZone((string)$tzid, $root);
+ } else {
+ $tz = VObject\TimeZoneUtil::getTimeZone((string)$tzid);
+ }
+
+ $dt = new \DateTime($dateStr, $tz);
+ $dt->setTimeZone($tz);
+
+ return array(
+ self::LOCALTZ,
+ $dt
+ );
+
+ }
+
+}
diff --git a/vendor/sabre/vobject/lib/Sabre/VObject/Property/MultiDateTime.php b/vendor/sabre/vobject/lib/Sabre/VObject/Property/MultiDateTime.php
new file mode 100644
index 000000000..f01491b66
--- /dev/null
+++ b/vendor/sabre/vobject/lib/Sabre/VObject/Property/MultiDateTime.php
@@ -0,0 +1,180 @@
+<?php
+
+namespace Sabre\VObject\Property;
+
+use Sabre\VObject;
+
+/**
+ * Multi-DateTime property
+ *
+ * This element is used for iCalendar properties such as the EXDATE property.
+ * It basically provides a few helper functions that make it easier to deal
+ * with these. It supports both DATE-TIME and DATE values.
+ *
+ * In order to use this correctly, you must call setDateTimes and getDateTimes
+ * to retrieve and modify dates respectively.
+ *
+ * If you use the 'value' or properties directly, this object does not keep
+ * reference and results might appear incorrectly.
+ *
+ * @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 MultiDateTime extends VObject\Property {
+
+ /**
+ * DateTime representation
+ *
+ * @var DateTime[]
+ */
+ protected $dateTimes;
+
+ /**
+ * dateType
+ *
+ * This is one of the Sabre\VObject\Property\DateTime constants.
+ *
+ * @var int
+ */
+ protected $dateType;
+
+ /**
+ * Updates the value
+ *
+ * @param array $dt Must be an array of DateTime objects.
+ * @param int $dateType
+ * @return void
+ */
+ public function setDateTimes(array $dt, $dateType = VObject\Property\DateTime::LOCALTZ) {
+
+ foreach($dt as $i)
+ if (!$i instanceof \DateTime)
+ throw new \InvalidArgumentException('You must pass an array of DateTime objects');
+
+ $this->offsetUnset('VALUE');
+ $this->offsetUnset('TZID');
+ switch($dateType) {
+
+ case DateTime::LOCAL :
+ $val = array();
+ foreach($dt as $i) {
+ $val[] = $i->format('Ymd\\THis');
+ }
+ $this->setValue(implode(',',$val));
+ $this->offsetSet('VALUE','DATE-TIME');
+ break;
+ case DateTime::UTC :
+ $val = array();
+ foreach($dt as $i) {
+ $i->setTimeZone(new \DateTimeZone('UTC'));
+ $val[] = $i->format('Ymd\\THis\\Z');
+ }
+ $this->setValue(implode(',',$val));
+ $this->offsetSet('VALUE','DATE-TIME');
+ break;
+ case DateTime::LOCALTZ :
+ $val = array();
+ foreach($dt as $i) {
+ $val[] = $i->format('Ymd\\THis');
+ }
+ $this->setValue(implode(',',$val));
+ $this->offsetSet('VALUE','DATE-TIME');
+ $this->offsetSet('TZID', $dt[0]->getTimeZone()->getName());
+ break;
+ case DateTime::DATE :
+ $val = array();
+ foreach($dt as $i) {
+ $val[] = $i->format('Ymd');
+ }
+ $this->setValue(implode(',',$val));
+ $this->offsetSet('VALUE','DATE');
+ break;
+ default :
+ throw new \InvalidArgumentException('You must pass a valid dateType constant');
+
+ }
+ $this->dateTimes = $dt;
+ $this->dateType = $dateType;
+
+ }
+
+ /**
+ * Returns the current DateTime value.
+ *
+ * If no value was set, this method returns null.
+ *
+ * @return array|null
+ */
+ public function getDateTimes() {
+
+ if ($this->dateTimes)
+ return $this->dateTimes;
+
+ $dts = array();
+
+ if (!$this->value) {
+ $this->dateTimes = null;
+ $this->dateType = null;
+ return null;
+ }
+
+ foreach(explode(',',$this->value) as $val) {
+ list(
+ $type,
+ $dt
+ ) = DateTime::parseData($val, $this);
+ $dts[] = $dt;
+ $this->dateType = $type;
+ }
+ $this->dateTimes = $dts;
+ return $this->dateTimes;
+
+ }
+
+ /**
+ * Returns the type of Date format.
+ *
+ * This method returns one of the format constants. If no date was set,
+ * this method will return null.
+ *
+ * @return int|null
+ */
+ public function getDateType() {
+
+ if ($this->dateType)
+ return $this->dateType;
+
+ if (!$this->value) {
+ $this->dateTimes = null;
+ $this->dateType = null;
+ return null;
+ }
+
+ $dts = array();
+ foreach(explode(',',$this->value) as $val) {
+ list(
+ $type,
+ $dt
+ ) = DateTime::parseData($val, $this);
+ $dts[] = $dt;
+ $this->dateType = $type;
+ }
+ $this->dateTimes = $dts;
+ return $this->dateType;
+
+ }
+
+ /**
+ * This method will return true, if the property had a date and a time, as
+ * opposed to only a date.
+ *
+ * @return bool
+ */
+ public function hasTime() {
+
+ return $this->getDateType()!==DateTime::DATE;
+
+ }
+
+}
diff --git a/vendor/sabre/vobject/lib/Sabre/VObject/Reader.php b/vendor/sabre/vobject/lib/Sabre/VObject/Reader.php
new file mode 100644
index 000000000..a001b2bf1
--- /dev/null
+++ b/vendor/sabre/vobject/lib/Sabre/VObject/Reader.php
@@ -0,0 +1,223 @@
+<?php
+
+namespace Sabre\VObject;
+
+/**
+ * VCALENDAR/VCARD reader
+ *
+ * This class reads the vobject file, and returns a full element tree.
+ *
+ * TODO: this class currently completely works 'statically'. This is pointless,
+ * and defeats OOP principals. Needs refactoring in a future version.
+ *
+ * @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 Reader {
+
+ /**
+ * If this option is passed to the reader, it will be less strict about the
+ * validity of the lines.
+ *
+ * Currently using this option just means, that it will accept underscores
+ * in property names.
+ */
+ const OPTION_FORGIVING = 1;
+
+ /**
+ * If this option is turned on, any lines we cannot parse will be ignored
+ * by the reader.
+ */
+ const OPTION_IGNORE_INVALID_LINES = 2;
+
+ /**
+ * Parses the file and returns the top component
+ *
+ * The options argument is a bitfield. Pass any of the OPTIONS constant to
+ * alter the parsers' behaviour.
+ *
+ * @param string $data
+ * @param int $options
+ * @return Node
+ */
+ static function read($data, $options = 0) {
+
+ // Normalizing newlines
+ $data = str_replace(array("\r","\n\n"), array("\n","\n"), $data);
+
+ $lines = explode("\n", $data);
+
+ // Unfolding lines
+ $lines2 = array();
+ foreach($lines as $line) {
+
+ // Skipping empty lines
+ if (!$line) continue;
+
+ if ($line[0]===" " || $line[0]==="\t") {
+ $lines2[count($lines2)-1].=substr($line,1);
+ } else {
+ $lines2[] = $line;
+ }
+
+ }
+
+ unset($lines);
+
+ reset($lines2);
+
+ return self::readLine($lines2, $options);
+
+ }
+
+ /**
+ * Reads and parses a single line.
+ *
+ * This method receives the full array of lines. The array pointer is used
+ * to traverse.
+ *
+ * This method returns null if an invalid line was encountered, and the
+ * IGNORE_INVALID_LINES option was turned on.
+ *
+ * @param array $lines
+ * @param int $options See the OPTIONS constants.
+ * @return Node
+ */
+ static private function readLine(&$lines, $options = 0) {
+
+ $line = current($lines);
+ $lineNr = key($lines);
+ next($lines);
+
+ // Components
+ if (strtoupper(substr($line,0,6)) === "BEGIN:") {
+
+ $componentName = strtoupper(substr($line,6));
+ $obj = Component::create($componentName);
+
+ $nextLine = current($lines);
+
+ while(strtoupper(substr($nextLine,0,4))!=="END:") {
+
+ $parsedLine = self::readLine($lines, $options);
+ $nextLine = current($lines);
+
+ if (is_null($parsedLine)) {
+ continue;
+ }
+ $obj->add($parsedLine);
+
+ if ($nextLine===false)
+ throw new ParseException('Invalid VObject. Document ended prematurely.');
+
+ }
+
+ // Checking component name of the 'END:' line.
+ if (substr($nextLine,4)!==$obj->name) {
+ throw new ParseException('Invalid VObject, expected: "END:' . $obj->name . '" got: "' . $nextLine . '"');
+ }
+ next($lines);
+
+ return $obj;
+
+ }
+
+ // Properties
+ //$result = preg_match('/(?P<name>[A-Z0-9-]+)(?:;(?P<parameters>^(?<!:):))(.*)$/',$line,$matches);
+
+ if ($options & self::OPTION_FORGIVING) {
+ $token = '[A-Z0-9-\._]+';
+ } else {
+ $token = '[A-Z0-9-\.]+';
+ }
+ $parameters = "(?:;(?P<parameters>([^:^\"]|\"([^\"]*)\")*))?";
+ $regex = "/^(?P<name>$token)$parameters:(?P<value>.*)$/i";
+
+ $result = preg_match($regex,$line,$matches);
+
+ if (!$result) {
+ if ($options & self::OPTION_IGNORE_INVALID_LINES) {
+ return null;
+ } else {
+ throw new ParseException('Invalid VObject, line ' . ($lineNr+1) . ' did not follow the icalendar/vcard format');
+ }
+ }
+
+ $propertyName = strtoupper($matches['name']);
+ $propertyValue = preg_replace_callback('#(\\\\(\\\\|N|n))#',function($matches) {
+ if ($matches[2]==='n' || $matches[2]==='N') {
+ return "\n";
+ } else {
+ return $matches[2];
+ }
+ }, $matches['value']);
+
+ $obj = Property::create($propertyName, $propertyValue);
+
+ if ($matches['parameters']) {
+
+ foreach(self::readParameters($matches['parameters']) as $param) {
+ $obj->add($param);
+ }
+
+ }
+
+ return $obj;
+
+
+ }
+
+ /**
+ * Reads a parameter list from a property
+ *
+ * This method returns an array of Parameter
+ *
+ * @param string $parameters
+ * @return array
+ */
+ static private function readParameters($parameters) {
+
+ $token = '[A-Z0-9-]+';
+
+ $paramValue = '(?P<paramValue>[^\"^;]*|"[^"]*")';
+
+ $regex = "/(?<=^|;)(?P<paramName>$token)(=$paramValue(?=$|;))?/i";
+ preg_match_all($regex, $parameters, $matches, PREG_SET_ORDER);
+
+ $params = array();
+ foreach($matches as $match) {
+
+ if (!isset($match['paramValue'])) {
+
+ $value = null;
+
+ } else {
+
+ $value = $match['paramValue'];
+
+ if (isset($value[0]) && $value[0]==='"') {
+ // Stripping quotes, if needed
+ $value = substr($value,1,strlen($value)-2);
+ }
+
+ $value = preg_replace_callback('#(\\\\(\\\\|N|n|;|,))#',function($matches) {
+ if ($matches[2]==='n' || $matches[2]==='N') {
+ return "\n";
+ } else {
+ return $matches[2];
+ }
+ }, $value);
+
+ }
+
+ $params[] = new Parameter($match['paramName'], $value);
+
+ }
+
+ return $params;
+
+ }
+
+
+}
diff --git a/vendor/sabre/vobject/lib/Sabre/VObject/RecurrenceIterator.php b/vendor/sabre/vobject/lib/Sabre/VObject/RecurrenceIterator.php
new file mode 100644
index 000000000..8bd4ed224
--- /dev/null
+++ b/vendor/sabre/vobject/lib/Sabre/VObject/RecurrenceIterator.php
@@ -0,0 +1,1144 @@
+<?php
+
+namespace Sabre\VObject;
+
+/**
+ * This class is used to determine new for a recurring event, when the next
+ * events occur.
+ *
+ * This iterator may loop infinitely in the future, therefore it is important
+ * that if you use this class, you set hard limits for the amount of iterations
+ * you want to handle.
+ *
+ * Note that currently there is not full support for the entire iCalendar
+ * specification, as it's very complex and contains a lot of permutations
+ * that's not yet used very often in software.
+ *
+ * For the focus has been on features as they actually appear in Calendaring
+ * software, but this may well get expanded as needed / on demand
+ *
+ * The following RRULE properties are supported
+ * * UNTIL
+ * * INTERVAL
+ * * COUNT
+ * * FREQ=DAILY
+ * * BYDAY
+ * * BYHOUR
+ * * FREQ=WEEKLY
+ * * BYDAY
+ * * BYHOUR
+ * * WKST
+ * * FREQ=MONTHLY
+ * * BYMONTHDAY
+ * * BYDAY
+ * * BYSETPOS
+ * * FREQ=YEARLY
+ * * BYMONTH
+ * * BYMONTHDAY (only if BYMONTH is also set)
+ * * BYDAY (only if BYMONTH is also set)
+ *
+ * Anything beyond this is 'undefined', which means that it may get ignored, or
+ * you may get unexpected results. The effect is that in some applications the
+ * specified recurrence may look incorrect, or is missing.
+ *
+ * @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 RecurrenceIterator implements \Iterator {
+
+ /**
+ * The initial event date
+ *
+ * @var DateTime
+ */
+ public $startDate;
+
+ /**
+ * The end-date of the initial event
+ *
+ * @var DateTime
+ */
+ public $endDate;
+
+ /**
+ * The 'current' recurrence.
+ *
+ * This will be increased for every iteration.
+ *
+ * @var DateTime
+ */
+ public $currentDate;
+
+
+ /**
+ * List of dates that are excluded from the rules.
+ *
+ * This list contains the items that have been overriden by the EXDATE
+ * property.
+ *
+ * @var array
+ */
+ public $exceptionDates = array();
+
+ /**
+ * Base event
+ *
+ * @var Component\VEvent
+ */
+ public $baseEvent;
+
+ /**
+ * List of dates that are overridden by other events.
+ * Similar to $overriddenEvents, but this just contains the original dates.
+ *
+ * @var array
+ */
+ public $overriddenDates = array();
+
+ /**
+ * list of events that are 'overridden'.
+ *
+ * This is an array of Component\VEvent objects.
+ *
+ * @var array
+ */
+ public $overriddenEvents = array();
+
+ /**
+ * Frequency is one of: secondly, minutely, hourly, daily, weekly, monthly,
+ * yearly.
+ *
+ * @var string
+ */
+ public $frequency;
+
+ /**
+ * The last instance of this recurrence, inclusively
+ *
+ * @var DateTime|null
+ */
+ public $until;
+
+ /**
+ * The number of recurrences, or 'null' if infinitely recurring.
+ *
+ * @var int
+ */
+ public $count;
+
+ /**
+ * The interval.
+ *
+ * If for example frequency is set to daily, interval = 2 would mean every
+ * 2 days.
+ *
+ * @var int
+ */
+ public $interval = 1;
+
+ /**
+ * Which seconds to recur.
+ *
+ * This is an array of integers (between 0 and 60)
+ *
+ * @var array
+ */
+ public $bySecond;
+
+ /**
+ * Which minutes to recur
+ *
+ * This is an array of integers (between 0 and 59)
+ *
+ * @var array
+ */
+ public $byMinute;
+
+ /**
+ * Which hours to recur
+ *
+ * This is an array of integers (between 0 and 23)
+ *
+ * @var array
+ */
+ public $byHour;
+
+ /**
+ * Which weekdays to recur.
+ *
+ * This is an array of weekdays
+ *
+ * This may also be preceeded by a positive or negative integer. If present,
+ * this indicates the nth occurrence of a specific day within the monthly or
+ * yearly rrule. For instance, -2TU indicates the second-last tuesday of
+ * the month, or year.
+ *
+ * @var array
+ */
+ public $byDay;
+
+ /**
+ * Which days of the month to recur
+ *
+ * This is an array of days of the months (1-31). The value can also be
+ * negative. -5 for instance means the 5th last day of the month.
+ *
+ * @var array
+ */
+ public $byMonthDay;
+
+ /**
+ * Which days of the year to recur.
+ *
+ * This is an array with days of the year (1 to 366). The values can also
+ * be negative. For instance, -1 will always represent the last day of the
+ * year. (December 31st).
+ *
+ * @var array
+ */
+ public $byYearDay;
+
+ /**
+ * Which week numbers to recur.
+ *
+ * This is an array of integers from 1 to 53. The values can also be
+ * negative. -1 will always refer to the last week of the year.
+ *
+ * @var array
+ */
+ public $byWeekNo;
+
+ /**
+ * Which months to recur
+ *
+ * This is an array of integers from 1 to 12.
+ *
+ * @var array
+ */
+ public $byMonth;
+
+ /**
+ * Which items in an existing st to recur.
+ *
+ * These numbers work together with an existing by* rule. It specifies
+ * exactly which items of the existing by-rule to filter.
+ *
+ * Valid values are 1 to 366 and -1 to -366. As an example, this can be
+ * used to recur the last workday of the month.
+ *
+ * This would be done by setting frequency to 'monthly', byDay to
+ * 'MO,TU,WE,TH,FR' and bySetPos to -1.
+ *
+ * @var array
+ */
+ public $bySetPos;
+
+ /**
+ * When a week starts
+ *
+ * @var string
+ */
+ public $weekStart = 'MO';
+
+ /**
+ * The current item in the list
+ *
+ * @var int
+ */
+ public $counter = 0;
+
+ /**
+ * Simple mapping from iCalendar day names to day numbers
+ *
+ * @var array
+ */
+ private $dayMap = array(
+ 'SU' => 0,
+ 'MO' => 1,
+ 'TU' => 2,
+ 'WE' => 3,
+ 'TH' => 4,
+ 'FR' => 5,
+ 'SA' => 6,
+ );
+
+ /**
+ * Mappings between the day number and english day name.
+ *
+ * @var array
+ */
+ private $dayNames = array(
+ 0 => 'Sunday',
+ 1 => 'Monday',
+ 2 => 'Tuesday',
+ 3 => 'Wednesday',
+ 4 => 'Thursday',
+ 5 => 'Friday',
+ 6 => 'Saturday',
+ );
+
+ /**
+ * If the current iteration of the event is an overriden event, this
+ * property will hold the VObject
+ *
+ * @var Component
+ */
+ private $currentOverriddenEvent;
+
+ /**
+ * This property may contain the date of the next not-overridden event.
+ * This date is calculated sometimes a bit early, before overridden events
+ * are evaluated.
+ *
+ * @var DateTime
+ */
+ private $nextDate;
+
+ /**
+ * This counts the number of overridden events we've handled so far
+ *
+ * @var int
+ */
+ private $handledOverridden = 0;
+
+ /**
+ * Creates the iterator
+ *
+ * You should pass a VCALENDAR component, as well as the UID of the event
+ * we're going to traverse.
+ *
+ * @param Component $vcal
+ * @param string|null $uid
+ */
+ public function __construct(Component $vcal, $uid=null) {
+
+ if (is_null($uid)) {
+ if ($vcal->name === 'VCALENDAR') {
+ throw new \InvalidArgumentException('If you pass a VCALENDAR object, you must pass a uid argument as well');
+ }
+ $components = array($vcal);
+ $uid = (string)$vcal->uid;
+ } else {
+ $components = $vcal->select('VEVENT');
+ }
+ foreach($components as $component) {
+ if ((string)$component->uid == $uid) {
+ if (isset($component->{'RECURRENCE-ID'})) {
+ $this->overriddenEvents[$component->DTSTART->getDateTime()->getTimeStamp()] = $component;
+ $this->overriddenDates[] = $component->{'RECURRENCE-ID'}->getDateTime();
+ } else {
+ $this->baseEvent = $component;
+ }
+ }
+ }
+
+ ksort($this->overriddenEvents);
+
+ if (!$this->baseEvent) {
+ throw new \InvalidArgumentException('Could not find a base event with uid: ' . $uid);
+ }
+
+ $this->startDate = clone $this->baseEvent->DTSTART->getDateTime();
+
+ $this->endDate = null;
+ if (isset($this->baseEvent->DTEND)) {
+ $this->endDate = clone $this->baseEvent->DTEND->getDateTime();
+ } else {
+ $this->endDate = clone $this->startDate;
+ if (isset($this->baseEvent->DURATION)) {
+ $this->endDate->add(DateTimeParser::parse($this->baseEvent->DURATION->value));
+ } elseif ($this->baseEvent->DTSTART->getDateType()===Property\DateTime::DATE) {
+ $this->endDate->modify('+1 day');
+ }
+ }
+ $this->currentDate = clone $this->startDate;
+
+ $rrule = (string)$this->baseEvent->RRULE;
+
+ $parts = explode(';', $rrule);
+
+ // If no rrule was specified, we create a default setting
+ if (!$rrule) {
+ $this->frequency = 'daily';
+ $this->count = 1;
+ } else foreach($parts as $part) {
+
+ list($key, $value) = explode('=', $part, 2);
+
+ switch(strtoupper($key)) {
+
+ case 'FREQ' :
+ if (!in_array(
+ strtolower($value),
+ array('secondly','minutely','hourly','daily','weekly','monthly','yearly')
+ )) {
+ throw new \InvalidArgumentException('Unknown value for FREQ=' . strtoupper($value));
+
+ }
+ $this->frequency = strtolower($value);
+ break;
+
+ case 'UNTIL' :
+ $this->until = DateTimeParser::parse($value);
+
+ // In some cases events are generated with an UNTIL=
+ // parameter before the actual start of the event.
+ //
+ // Not sure why this is happening. We assume that the
+ // intention was that the event only recurs once.
+ //
+ // So we are modifying the parameter so our code doesn't
+ // break.
+ if($this->until < $this->baseEvent->DTSTART->getDateTime()) {
+ $this->until = $this->baseEvent->DTSTART->getDateTime();
+ }
+ break;
+
+ case 'COUNT' :
+ $this->count = (int)$value;
+ break;
+
+ case 'INTERVAL' :
+ $this->interval = (int)$value;
+ if ($this->interval < 1) {
+ throw new \InvalidArgumentException('INTERVAL in RRULE must be a positive integer!');
+ }
+ break;
+
+ case 'BYSECOND' :
+ $this->bySecond = explode(',', $value);
+ break;
+
+ case 'BYMINUTE' :
+ $this->byMinute = explode(',', $value);
+ break;
+
+ case 'BYHOUR' :
+ $this->byHour = explode(',', $value);
+ break;
+
+ case 'BYDAY' :
+ $this->byDay = explode(',', strtoupper($value));
+ break;
+
+ case 'BYMONTHDAY' :
+ $this->byMonthDay = explode(',', $value);
+ break;
+
+ case 'BYYEARDAY' :
+ $this->byYearDay = explode(',', $value);
+ break;
+
+ case 'BYWEEKNO' :
+ $this->byWeekNo = explode(',', $value);
+ break;
+
+ case 'BYMONTH' :
+ $this->byMonth = explode(',', $value);
+ break;
+
+ case 'BYSETPOS' :
+ $this->bySetPos = explode(',', $value);
+ break;
+
+ case 'WKST' :
+ $this->weekStart = strtoupper($value);
+ break;
+
+ }
+
+ }
+
+ // Parsing exception dates
+ if (isset($this->baseEvent->EXDATE)) {
+ foreach($this->baseEvent->EXDATE as $exDate) {
+
+ foreach(explode(',', (string)$exDate) as $exceptionDate) {
+
+ $this->exceptionDates[] =
+ DateTimeParser::parse($exceptionDate, $this->startDate->getTimeZone());
+
+ }
+
+ }
+
+ }
+
+ }
+
+ /**
+ * Returns the current item in the list
+ *
+ * @return DateTime
+ */
+ public function current() {
+
+ if (!$this->valid()) return null;
+ return clone $this->currentDate;
+
+ }
+
+ /**
+ * This method returns the startdate for the current iteration of the
+ * event.
+ *
+ * @return DateTime
+ */
+ public function getDtStart() {
+
+ if (!$this->valid()) return null;
+ return clone $this->currentDate;
+
+ }
+
+ /**
+ * This method returns the enddate for the current iteration of the
+ * event.
+ *
+ * @return DateTime
+ */
+ public function getDtEnd() {
+
+ if (!$this->valid()) return null;
+ $dtEnd = clone $this->currentDate;
+ $dtEnd->add( $this->startDate->diff( $this->endDate ) );
+ return clone $dtEnd;
+
+ }
+
+ /**
+ * Returns a VEVENT object with the updated start and end date.
+ *
+ * Any recurrence information is removed, and this function may return an
+ * 'overridden' event instead.
+ *
+ * This method always returns a cloned instance.
+ *
+ * @return Component\VEvent
+ */
+ public function getEventObject() {
+
+ if ($this->currentOverriddenEvent) {
+ return clone $this->currentOverriddenEvent;
+ }
+ $event = clone $this->baseEvent;
+ unset($event->RRULE);
+ unset($event->EXDATE);
+ unset($event->RDATE);
+ unset($event->EXRULE);
+
+ $event->DTSTART->setDateTime($this->getDTStart(), $event->DTSTART->getDateType());
+ if (isset($event->DTEND)) {
+ $event->DTEND->setDateTime($this->getDtEnd(), $event->DTSTART->getDateType());
+ }
+ if ($this->counter > 0) {
+ $event->{'RECURRENCE-ID'} = (string)$event->DTSTART;
+ }
+
+ return $event;
+
+ }
+
+ /**
+ * Returns the current item number
+ *
+ * @return int
+ */
+ public function key() {
+
+ return $this->counter;
+
+ }
+
+ /**
+ * Whether or not there is a 'next item'
+ *
+ * @return bool
+ */
+ public function valid() {
+
+ if (!is_null($this->count)) {
+ return $this->counter < $this->count;
+ }
+ if (!is_null($this->until) && $this->currentDate > $this->until) {
+
+ // Need to make sure there's no overridden events past the
+ // until date.
+ foreach($this->overriddenEvents as $overriddenEvent) {
+
+ if ($overriddenEvent->DTSTART->getDateTime() >= $this->currentDate) {
+
+ return true;
+ }
+ }
+ return false;
+ }
+ return true;
+
+ }
+
+ /**
+ * Resets the iterator
+ *
+ * @return void
+ */
+ public function rewind() {
+
+ $this->currentDate = clone $this->startDate;
+ $this->counter = 0;
+
+ }
+
+ /**
+ * This method allows you to quickly go to the next occurrence after the
+ * specified date.
+ *
+ * Note that this checks the current 'endDate', not the 'stardDate'. This
+ * means that if you forward to January 1st, the iterator will stop at the
+ * first event that ends *after* January 1st.
+ *
+ * @param DateTime $dt
+ * @return void
+ */
+ public function fastForward(\DateTime $dt) {
+
+ while($this->valid() && $this->getDTEnd() <= $dt) {
+ $this->next();
+ }
+
+ }
+
+ /**
+ * Returns true if this recurring event never ends.
+ *
+ * @return bool
+ */
+ public function isInfinite() {
+
+ return !$this->count && !$this->until;
+
+ }
+
+ /**
+ * Goes on to the next iteration
+ *
+ * @return void
+ */
+ public function next() {
+
+ $previousStamp = $this->currentDate->getTimeStamp();
+
+ // Finding the next overridden event in line, and storing that for
+ // later use.
+ $overriddenEvent = null;
+ $overriddenDate = null;
+ $this->currentOverriddenEvent = null;
+
+ foreach($this->overriddenEvents as $index=>$event) {
+ if ($index > $previousStamp) {
+ $overriddenEvent = $event;
+ $overriddenDate = clone $event->DTSTART->getDateTime();
+ break;
+ }
+ }
+
+ // If we have a stored 'next date', we will use that.
+ if ($this->nextDate) {
+ if (!$overriddenDate || $this->nextDate < $overriddenDate) {
+ $this->currentDate = $this->nextDate;
+ $currentStamp = $this->currentDate->getTimeStamp();
+ $this->nextDate = null;
+ } else {
+ $this->currentDate = clone $overriddenDate;
+ $this->currentOverriddenEvent = $overriddenEvent;
+ }
+ $this->counter++;
+ return;
+ }
+
+ while(true) {
+
+ // Otherwise, we find the next event in the normal RRULE
+ // sequence.
+ switch($this->frequency) {
+
+ case 'hourly' :
+ $this->nextHourly();
+ break;
+
+ case 'daily' :
+ $this->nextDaily();
+ break;
+
+ case 'weekly' :
+ $this->nextWeekly();
+ break;
+
+ case 'monthly' :
+ $this->nextMonthly();
+ break;
+
+ case 'yearly' :
+ $this->nextYearly();
+ break;
+
+ }
+ $currentStamp = $this->currentDate->getTimeStamp();
+
+
+ // Checking exception dates
+ foreach($this->exceptionDates as $exceptionDate) {
+ if ($this->currentDate == $exceptionDate) {
+ $this->counter++;
+ continue 2;
+ }
+ }
+ foreach($this->overriddenDates as $check) {
+ if ($this->currentDate == $check) {
+ continue 2;
+ }
+ }
+ break;
+
+ }
+
+
+
+ // Is the date we have actually higher than the next overiddenEvent?
+ if ($overriddenDate && $this->currentDate > $overriddenDate) {
+ $this->nextDate = clone $this->currentDate;
+ $this->currentDate = clone $overriddenDate;
+ $this->currentOverriddenEvent = $overriddenEvent;
+ $this->handledOverridden++;
+ }
+ $this->counter++;
+
+
+ /*
+ * If we have overridden events left in the queue, but our counter is
+ * running out, we should grab one of those.
+ */
+ if (!is_null($overriddenEvent) && !is_null($this->count) && count($this->overriddenEvents) - $this->handledOverridden >= ($this->count - $this->counter)) {
+
+ $this->currentOverriddenEvent = $overriddenEvent;
+ $this->currentDate = clone $overriddenDate;
+ $this->handledOverridden++;
+
+ }
+
+ }
+
+ /**
+ * Does the processing for advancing the iterator for hourly frequency.
+ *
+ * @return void
+ */
+ protected function nextHourly() {
+
+ if (!$this->byHour) {
+ $this->currentDate->modify('+' . $this->interval . ' hours');
+ return;
+ }
+ }
+
+ /**
+ * Does the processing for advancing the iterator for daily frequency.
+ *
+ * @return void
+ */
+ protected function nextDaily() {
+
+ if (!$this->byHour && !$this->byDay) {
+ $this->currentDate->modify('+' . $this->interval . ' days');
+ return;
+ }
+
+ if (isset($this->byHour)) {
+ $recurrenceHours = $this->getHours();
+ }
+
+ if (isset($this->byDay)) {
+ $recurrenceDays = $this->getDays();
+ }
+
+ do {
+
+ if ($this->byHour) {
+ if ($this->currentDate->format('G') == '23') {
+ // to obey the interval rule
+ $this->currentDate->modify('+' . $this->interval-1 . ' days');
+ }
+
+ $this->currentDate->modify('+1 hours');
+
+ } else {
+ $this->currentDate->modify('+' . $this->interval . ' days');
+
+ }
+
+ // Current day of the week
+ $currentDay = $this->currentDate->format('w');
+
+ // Current hour of the day
+ $currentHour = $this->currentDate->format('G');
+
+ } while (($this->byDay && !in_array($currentDay, $recurrenceDays)) || ($this->byHour && !in_array($currentHour, $recurrenceHours)));
+
+ }
+
+ /**
+ * Does the processing for advancing the iterator for weekly frequency.
+ *
+ * @return void
+ */
+ protected function nextWeekly() {
+
+ if (!$this->byHour && !$this->byDay) {
+ $this->currentDate->modify('+' . $this->interval . ' weeks');
+ return;
+ }
+
+ if ($this->byHour) {
+ $recurrenceHours = $this->getHours();
+ }
+
+ if ($this->byDay) {
+ $recurrenceDays = $this->getDays();
+ }
+
+ // First day of the week:
+ $firstDay = $this->dayMap[$this->weekStart];
+
+ do {
+
+ if ($this->byHour) {
+ $this->currentDate->modify('+1 hours');
+ } else {
+ $this->currentDate->modify('+1 days');
+ }
+
+ // Current day of the week
+ $currentDay = (int) $this->currentDate->format('w');
+
+ // Current hour of the day
+ $currentHour = (int) $this->currentDate->format('G');
+
+ // We need to roll over to the next week
+ if ($currentDay === $firstDay && (!$this->byHour || $currentHour == '0')) {
+ $this->currentDate->modify('+' . $this->interval-1 . ' weeks');
+
+ // We need to go to the first day of this week, but only if we
+ // are not already on this first day of this week.
+ if($this->currentDate->format('w') != $firstDay) {
+ $this->currentDate->modify('last ' . $this->dayNames[$this->dayMap[$this->weekStart]]);
+ }
+ }
+
+ // We have a match
+ } while (($this->byDay && !in_array($currentDay, $recurrenceDays)) || ($this->byHour && !in_array($currentHour, $recurrenceHours)));
+ }
+
+ /**
+ * Does the processing for advancing the iterator for monthly frequency.
+ *
+ * @return void
+ */
+ protected function nextMonthly() {
+
+ $currentDayOfMonth = $this->currentDate->format('j');
+ if (!$this->byMonthDay && !$this->byDay) {
+
+ // If the current day is higher than the 28th, rollover can
+ // occur to the next month. We Must skip these invalid
+ // entries.
+ if ($currentDayOfMonth < 29) {
+ $this->currentDate->modify('+' . $this->interval . ' months');
+ } else {
+ $increase = 0;
+ do {
+ $increase++;
+ $tempDate = clone $this->currentDate;
+ $tempDate->modify('+ ' . ($this->interval*$increase) . ' months');
+ } while ($tempDate->format('j') != $currentDayOfMonth);
+ $this->currentDate = $tempDate;
+ }
+ return;
+ }
+
+ while(true) {
+
+ $occurrences = $this->getMonthlyOccurrences();
+
+ foreach($occurrences as $occurrence) {
+
+ // The first occurrence thats higher than the current
+ // day of the month wins.
+ if ($occurrence > $currentDayOfMonth) {
+ break 2;
+ }
+
+ }
+
+ // If we made it all the way here, it means there were no
+ // valid occurrences, and we need to advance to the next
+ // month.
+ $this->currentDate->modify('first day of this month');
+ $this->currentDate->modify('+ ' . $this->interval . ' months');
+
+ // This goes to 0 because we need to start counting at hte
+ // beginning.
+ $currentDayOfMonth = 0;
+
+ }
+
+ $this->currentDate->setDate($this->currentDate->format('Y'), $this->currentDate->format('n'), $occurrence);
+
+ }
+
+ /**
+ * Does the processing for advancing the iterator for yearly frequency.
+ *
+ * @return void
+ */
+ protected function nextYearly() {
+
+ $currentMonth = $this->currentDate->format('n');
+ $currentYear = $this->currentDate->format('Y');
+ $currentDayOfMonth = $this->currentDate->format('j');
+
+ // No sub-rules, so we just advance by year
+ if (!$this->byMonth) {
+
+ // Unless it was a leap day!
+ if ($currentMonth==2 && $currentDayOfMonth==29) {
+
+ $counter = 0;
+ do {
+ $counter++;
+ // Here we increase the year count by the interval, until
+ // we hit a date that's also in a leap year.
+ //
+ // We could just find the next interval that's dividable by
+ // 4, but that would ignore the rule that there's no leap
+ // year every year that's dividable by a 100, but not by
+ // 400. (1800, 1900, 2100). So we just rely on the datetime
+ // functions instead.
+ $nextDate = clone $this->currentDate;
+ $nextDate->modify('+ ' . ($this->interval*$counter) . ' years');
+ } while ($nextDate->format('n')!=2);
+ $this->currentDate = $nextDate;
+
+ return;
+
+ }
+
+ // The easiest form
+ $this->currentDate->modify('+' . $this->interval . ' years');
+ return;
+
+ }
+
+ $currentMonth = $this->currentDate->format('n');
+ $currentYear = $this->currentDate->format('Y');
+ $currentDayOfMonth = $this->currentDate->format('j');
+
+ $advancedToNewMonth = false;
+
+ // If we got a byDay or getMonthDay filter, we must first expand
+ // further.
+ if ($this->byDay || $this->byMonthDay) {
+
+ while(true) {
+
+ $occurrences = $this->getMonthlyOccurrences();
+
+ foreach($occurrences as $occurrence) {
+
+ // The first occurrence that's higher than the current
+ // day of the month wins.
+ // If we advanced to the next month or year, the first
+ // occurrence is always correct.
+ if ($occurrence > $currentDayOfMonth || $advancedToNewMonth) {
+ break 2;
+ }
+
+ }
+
+ // If we made it here, it means we need to advance to
+ // the next month or year.
+ $currentDayOfMonth = 1;
+ $advancedToNewMonth = true;
+ do {
+
+ $currentMonth++;
+ if ($currentMonth>12) {
+ $currentYear+=$this->interval;
+ $currentMonth = 1;
+ }
+ } while (!in_array($currentMonth, $this->byMonth));
+
+ $this->currentDate->setDate($currentYear, $currentMonth, $currentDayOfMonth);
+
+ }
+
+ // If we made it here, it means we got a valid occurrence
+ $this->currentDate->setDate($currentYear, $currentMonth, $occurrence);
+ return;
+
+ } else {
+
+ // These are the 'byMonth' rules, if there are no byDay or
+ // byMonthDay sub-rules.
+ do {
+
+ $currentMonth++;
+ if ($currentMonth>12) {
+ $currentYear+=$this->interval;
+ $currentMonth = 1;
+ }
+ } while (!in_array($currentMonth, $this->byMonth));
+ $this->currentDate->setDate($currentYear, $currentMonth, $currentDayOfMonth);
+
+ return;
+
+ }
+
+ }
+
+ /**
+ * Returns all the occurrences for a monthly frequency with a 'byDay' or
+ * 'byMonthDay' expansion for the current month.
+ *
+ * The returned list is an array of integers with the day of month (1-31).
+ *
+ * @return array
+ */
+ protected function getMonthlyOccurrences() {
+
+ $startDate = clone $this->currentDate;
+
+ $byDayResults = array();
+
+ // Our strategy is to simply go through the byDays, advance the date to
+ // that point and add it to the results.
+ if ($this->byDay) foreach($this->byDay as $day) {
+
+ $dayName = $this->dayNames[$this->dayMap[substr($day,-2)]];
+
+ // Dayname will be something like 'wednesday'. Now we need to find
+ // all wednesdays in this month.
+ $dayHits = array();
+
+ $checkDate = clone $startDate;
+ $checkDate->modify('first day of this month');
+ $checkDate->modify($dayName);
+
+ do {
+ $dayHits[] = $checkDate->format('j');
+ $checkDate->modify('next ' . $dayName);
+ } while ($checkDate->format('n') === $startDate->format('n'));
+
+ // So now we have 'all wednesdays' for month. It is however
+ // possible that the user only really wanted the 1st, 2nd or last
+ // wednesday.
+ if (strlen($day)>2) {
+ $offset = (int)substr($day,0,-2);
+
+ if ($offset>0) {
+ // It is possible that the day does not exist, such as a
+ // 5th or 6th wednesday of the month.
+ if (isset($dayHits[$offset-1])) {
+ $byDayResults[] = $dayHits[$offset-1];
+ }
+ } else {
+
+ // if it was negative we count from the end of the array
+ $byDayResults[] = $dayHits[count($dayHits) + $offset];
+ }
+ } else {
+ // There was no counter (first, second, last wednesdays), so we
+ // just need to add the all to the list).
+ $byDayResults = array_merge($byDayResults, $dayHits);
+
+ }
+
+ }
+
+ $byMonthDayResults = array();
+ if ($this->byMonthDay) foreach($this->byMonthDay as $monthDay) {
+
+ // Removing values that are out of range for this month
+ if ($monthDay > $startDate->format('t') ||
+ $monthDay < 0-$startDate->format('t')) {
+ continue;
+ }
+ if ($monthDay>0) {
+ $byMonthDayResults[] = $monthDay;
+ } else {
+ // Negative values
+ $byMonthDayResults[] = $startDate->format('t') + 1 + $monthDay;
+ }
+ }
+
+ // If there was just byDay or just byMonthDay, they just specify our
+ // (almost) final list. If both were provided, then byDay limits the
+ // list.
+ if ($this->byMonthDay && $this->byDay) {
+ $result = array_intersect($byMonthDayResults, $byDayResults);
+ } elseif ($this->byMonthDay) {
+ $result = $byMonthDayResults;
+ } else {
+ $result = $byDayResults;
+ }
+ $result = array_unique($result);
+ sort($result, SORT_NUMERIC);
+
+ // The last thing that needs checking is the BYSETPOS. If it's set, it
+ // means only certain items in the set survive the filter.
+ if (!$this->bySetPos) {
+ return $result;
+ }
+
+ $filteredResult = array();
+ foreach($this->bySetPos as $setPos) {
+
+ if ($setPos<0) {
+ $setPos = count($result)-($setPos+1);
+ }
+ if (isset($result[$setPos-1])) {
+ $filteredResult[] = $result[$setPos-1];
+ }
+ }
+
+ sort($filteredResult, SORT_NUMERIC);
+ return $filteredResult;
+
+ }
+
+ protected function getHours()
+ {
+ $recurrenceHours = array();
+ foreach($this->byHour as $byHour) {
+ $recurrenceHours[] = $byHour;
+ }
+
+ return $recurrenceHours;
+ }
+
+ protected function getDays()
+ {
+ $recurrenceDays = array();
+ foreach($this->byDay as $byDay) {
+
+ // The day may be preceeded with a positive (+n) or
+ // negative (-n) integer. However, this does not make
+ // sense in 'weekly' so we ignore it here.
+ $recurrenceDays[] = $this->dayMap[substr($byDay,-2)];
+
+ }
+
+ return $recurrenceDays;
+ }
+}
+
diff --git a/vendor/sabre/vobject/lib/Sabre/VObject/Splitter/ICalendar.php b/vendor/sabre/vobject/lib/Sabre/VObject/Splitter/ICalendar.php
new file mode 100644
index 000000000..657cfb810
--- /dev/null
+++ b/vendor/sabre/vobject/lib/Sabre/VObject/Splitter/ICalendar.php
@@ -0,0 +1,111 @@
+<?php
+
+namespace Sabre\VObject\Splitter;
+
+use Sabre\VObject;
+
+/**
+ * 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) 2007-2013 fruux GmbH (https://fruux.com/).
+ * @author Dominik Tobschall
+ * @author Armin Hackmann
+ * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
+ */
+class ICalendar implements SplitterInterface {
+
+ /**
+ * Timezones
+ *
+ * @var array
+ */
+ protected $vtimezones = array();
+
+ /**
+ * iCalendar objects
+ *
+ * @var array
+ */
+ protected $objects = array();
+
+ /**
+ * Constructor
+ *
+ * The splitter should receive an readable file stream as it's input.
+ *
+ * @param resource $input
+ */
+ public function __construct($input) {
+
+ $data = VObject\Reader::read(stream_get_contents($input));
+ $vtimezones = array();
+ $components = array();
+
+ foreach($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) {
+ $uid = (string)$component->UID;
+ } else {
+ // Generating a random UID
+ $uid = sha1(microtime()) . '-vobjectimport';
+ }
+
+ // Take care of recurring events
+ if (!array_key_exists($uid, $this->objects)) {
+ $this->objects[$uid] = VObject\Component::create('VCALENDAR');
+ }
+
+ $this->objects[$uid]->add(clone $component);
+ }
+
+ }
+
+ /**
+ * Every time getNext() is called, a new object will be parsed, until we
+ * hit the end of the stream.
+ *
+ * When the end is reached, null will be returned.
+ *
+ * @return Sabre\VObject\Component|null
+ */
+ public function getNext() {
+
+ if($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 null;
+
+ }
+
+ }
+
+}
diff --git a/vendor/sabre/vobject/lib/Sabre/VObject/Splitter/SplitterInterface.php b/vendor/sabre/vobject/lib/Sabre/VObject/Splitter/SplitterInterface.php
new file mode 100644
index 000000000..c0126883a
--- /dev/null
+++ b/vendor/sabre/vobject/lib/Sabre/VObject/Splitter/SplitterInterface.php
@@ -0,0 +1,39 @@
+<?php
+
+namespace Sabre\VObject\Splitter;
+
+/**
+ * VObject splitter
+ *
+ * The splitter is responsible for reading a large vCard or iCalendar object,
+ * and splitting it into multiple objects.
+ *
+ * This is for example for Card and CalDAV, which require every event and vcard
+ * to exist in their own objects, instead of one large one.
+ *
+ * @copyright Copyright (C) 2007-2013 fruux GmbH (https://fruux.com/).
+ * @author Dominik Tobschall
+ * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
+ */
+interface SplitterInterface {
+
+ /**
+ * Constructor
+ *
+ * The splitter should receive an readable file stream as it's input.
+ *
+ * @param resource $input
+ */
+ function __construct($input);
+
+ /**
+ * 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();
+
+}
diff --git a/vendor/sabre/vobject/lib/Sabre/VObject/Splitter/VCard.php b/vendor/sabre/vobject/lib/Sabre/VObject/Splitter/VCard.php
new file mode 100644
index 000000000..7a8718c00
--- /dev/null
+++ b/vendor/sabre/vobject/lib/Sabre/VObject/Splitter/VCard.php
@@ -0,0 +1,76 @@
+<?php
+
+namespace Sabre\VObject\Splitter;
+
+use Sabre\VObject;
+
+/**
+ * Splitter
+ *
+ * This class is responsible for splitting up VCard objects.
+ *
+ * It is assumed that the input stream contains 1 or more VCARD objects. This
+ * class checks for BEGIN:VCARD and END:VCARD and parses each encountered
+ * component individually.
+ *
+ * @copyright Copyright (C) 2007-2013 fruux GmbH (https://fruux.com/).
+ * @author Dominik Tobschall
+ * @author Armin Hackmann
+ * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
+ */
+class VCard implements SplitterInterface {
+
+ /**
+ * File handle
+ *
+ * @var resource
+ */
+ protected $input;
+
+ /**
+ * Constructor
+ *
+ * The splitter should receive an readable file stream as it's input.
+ *
+ * @param resource $input
+ */
+ public function __construct($input) {
+
+ $this->input = $input;
+
+ }
+
+ /**
+ * 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
+ */
+ public function getNext() {
+
+ $vcard = '';
+
+ do {
+
+ if (feof($this->input)) {
+ return false;
+ }
+
+ $line = fgets($this->input);
+ $vcard .= $line;
+
+ } while(strtoupper(substr($line,0,4))!=="END:");
+
+ $object = VObject\Reader::read($vcard);
+
+ if($object->name !== 'VCARD') {
+ throw new \InvalidArgumentException("Thats no vCard!", 1);
+ }
+
+ return $object;
+
+ }
+
+}
diff --git a/vendor/sabre/vobject/lib/Sabre/VObject/StringUtil.php b/vendor/sabre/vobject/lib/Sabre/VObject/StringUtil.php
new file mode 100644
index 000000000..ea88e1e86
--- /dev/null
+++ b/vendor/sabre/vobject/lib/Sabre/VObject/StringUtil.php
@@ -0,0 +1,61 @@
+<?php
+
+namespace Sabre\VObject;
+
+/**
+ * Useful utilities for working with various strings.
+ *
+ * @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 StringUtil {
+
+ /**
+ * Returns true or false depending on if a string is valid UTF-8
+ *
+ * @param string $str
+ * @return bool
+ */
+ static function isUTF8($str) {
+
+ // First check.. mb_check_encoding
+ if (!mb_check_encoding($str, 'UTF-8')) {
+ return false;
+ }
+
+ // Control characters
+ if (preg_match('%(?:[\x00-\x08\x0B-\x0C\x0E\x0F])%', $str)) {
+ return false;
+ }
+
+ return true;
+
+ }
+
+ /**
+ * This method tries its best to convert the input string to UTF-8.
+ *
+ * Currently only ISO-5991-1 input and UTF-8 input is supported, but this
+ * may be expanded upon if we receive other examples.
+ *
+ * @param string $str
+ * @return string
+ */
+ static function convertToUTF8($str) {
+
+ $encoding = mb_detect_encoding($str , array('UTF-8','ISO-8859-1'), true);
+
+ if ($encoding === 'ISO-8859-1') {
+ $newStr = utf8_encode($str);
+ } else {
+ $newStr = $str;
+ }
+
+ // Removing any control characters
+ return (preg_replace('%(?:[\x00-\x08\x0B-\x0C\x0E\x0F])%', '', $newStr));
+
+ }
+
+}
+
diff --git a/vendor/sabre/vobject/lib/Sabre/VObject/TimeZoneUtil.php b/vendor/sabre/vobject/lib/Sabre/VObject/TimeZoneUtil.php
new file mode 100644
index 000000000..6f5b69f3f
--- /dev/null
+++ b/vendor/sabre/vobject/lib/Sabre/VObject/TimeZoneUtil.php
@@ -0,0 +1,482 @@
+<?php
+
+namespace Sabre\VObject;
+
+/**
+ * Time zone name translation
+ *
+ * This file translates well-known time zone names into "Olson database" time zone names.
+ *
+ * @copyright Copyright (C) 2007-2013 fruux GmbH (https://fruux.com/).
+ * @author Frank Edelhaeuser (fedel@users.sourceforge.net)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
+ */
+class TimeZoneUtil {
+
+ public static $map = array(
+
+ // from http://unicode.org/repos/cldr-tmp/trunk/diff/supplemental/zone_tzid.html
+ // snapshot taken on 2012/01/16
+
+ // windows
+ 'AUS Central Standard Time'=>'Australia/Darwin',
+ 'AUS Eastern Standard Time'=>'Australia/Sydney',
+ 'Afghanistan Standard Time'=>'Asia/Kabul',
+ 'Alaskan Standard Time'=>'America/Anchorage',
+ 'Arab Standard Time'=>'Asia/Riyadh',
+ 'Arabian Standard Time'=>'Asia/Dubai',
+ 'Arabic Standard Time'=>'Asia/Baghdad',
+ 'Argentina Standard Time'=>'America/Buenos_Aires',
+ 'Armenian Standard Time'=>'Asia/Yerevan',
+ 'Atlantic Standard Time'=>'America/Halifax',
+ 'Azerbaijan Standard Time'=>'Asia/Baku',
+ 'Azores Standard Time'=>'Atlantic/Azores',
+ 'Bangladesh Standard Time'=>'Asia/Dhaka',
+ 'Canada Central Standard Time'=>'America/Regina',
+ 'Cape Verde Standard Time'=>'Atlantic/Cape_Verde',
+ 'Caucasus Standard Time'=>'Asia/Yerevan',
+ 'Cen. Australia Standard Time'=>'Australia/Adelaide',
+ 'Central America Standard Time'=>'America/Guatemala',
+ 'Central Asia Standard Time'=>'Asia/Almaty',
+ 'Central Brazilian Standard Time'=>'America/Cuiaba',
+ 'Central Europe Standard Time'=>'Europe/Budapest',
+ 'Central European Standard Time'=>'Europe/Warsaw',
+ 'Central Pacific Standard Time'=>'Pacific/Guadalcanal',
+ 'Central Standard Time'=>'America/Chicago',
+ 'Central Standard Time (Mexico)'=>'America/Mexico_City',
+ 'China Standard Time'=>'Asia/Shanghai',
+ 'Dateline Standard Time'=>'Etc/GMT+12',
+ 'E. Africa Standard Time'=>'Africa/Nairobi',
+ 'E. Australia Standard Time'=>'Australia/Brisbane',
+ 'E. Europe Standard Time'=>'Europe/Minsk',
+ 'E. South America Standard Time'=>'America/Sao_Paulo',
+ 'Eastern Standard Time'=>'America/New_York',
+ 'Egypt Standard Time'=>'Africa/Cairo',
+ 'Ekaterinburg Standard Time'=>'Asia/Yekaterinburg',
+ 'FLE Standard Time'=>'Europe/Kiev',
+ 'Fiji Standard Time'=>'Pacific/Fiji',
+ 'GMT Standard Time'=>'Europe/London',
+ 'GTB Standard Time'=>'Europe/Istanbul',
+ 'Georgian Standard Time'=>'Asia/Tbilisi',
+ 'Greenland Standard Time'=>'America/Godthab',
+ 'Greenwich Standard Time'=>'Atlantic/Reykjavik',
+ 'Hawaiian Standard Time'=>'Pacific/Honolulu',
+ 'India Standard Time'=>'Asia/Calcutta',
+ 'Iran Standard Time'=>'Asia/Tehran',
+ 'Israel Standard Time'=>'Asia/Jerusalem',
+ 'Jordan Standard Time'=>'Asia/Amman',
+ 'Kamchatka Standard Time'=>'Asia/Kamchatka',
+ 'Korea Standard Time'=>'Asia/Seoul',
+ 'Magadan Standard Time'=>'Asia/Magadan',
+ 'Mauritius Standard Time'=>'Indian/Mauritius',
+ 'Mexico Standard Time'=>'America/Mexico_City',
+ 'Mexico Standard Time 2'=>'America/Chihuahua',
+ 'Mid-Atlantic Standard Time'=>'Etc/GMT-2',
+ 'Middle East Standard Time'=>'Asia/Beirut',
+ 'Montevideo Standard Time'=>'America/Montevideo',
+ 'Morocco Standard Time'=>'Africa/Casablanca',
+ 'Mountain Standard Time'=>'America/Denver',
+ 'Mountain Standard Time (Mexico)'=>'America/Chihuahua',
+ 'Myanmar Standard Time'=>'Asia/Rangoon',
+ 'N. Central Asia Standard Time'=>'Asia/Novosibirsk',
+ 'Namibia Standard Time'=>'Africa/Windhoek',
+ 'Nepal Standard Time'=>'Asia/Katmandu',
+ 'New Zealand Standard Time'=>'Pacific/Auckland',
+ 'Newfoundland Standard Time'=>'America/St_Johns',
+ 'North Asia East Standard Time'=>'Asia/Irkutsk',
+ 'North Asia Standard Time'=>'Asia/Krasnoyarsk',
+ 'Pacific SA Standard Time'=>'America/Santiago',
+ 'Pacific Standard Time'=>'America/Los_Angeles',
+ 'Pacific Standard Time (Mexico)'=>'America/Santa_Isabel',
+ 'Pakistan Standard Time'=>'Asia/Karachi',
+ 'Paraguay Standard Time'=>'America/Asuncion',
+ 'Romance Standard Time'=>'Europe/Paris',
+ 'Russian Standard Time'=>'Europe/Moscow',
+ 'SA Eastern Standard Time'=>'America/Cayenne',
+ 'SA Pacific Standard Time'=>'America/Bogota',
+ 'SA Western Standard Time'=>'America/La_Paz',
+ 'SE Asia Standard Time'=>'Asia/Bangkok',
+ 'Samoa Standard Time'=>'Pacific/Apia',
+ 'Singapore Standard Time'=>'Asia/Singapore',
+ 'South Africa Standard Time'=>'Africa/Johannesburg',
+ 'Sri Lanka Standard Time'=>'Asia/Colombo',
+ 'Syria Standard Time'=>'Asia/Damascus',
+ 'Taipei Standard Time'=>'Asia/Taipei',
+ 'Tasmania Standard Time'=>'Australia/Hobart',
+ 'Tokyo Standard Time'=>'Asia/Tokyo',
+ 'Tonga Standard Time'=>'Pacific/Tongatapu',
+ 'US Eastern Standard Time'=>'America/Indianapolis',
+ 'US Mountain Standard Time'=>'America/Phoenix',
+ 'UTC+12'=>'Etc/GMT-12',
+ 'UTC-02'=>'Etc/GMT+2',
+ 'UTC-11'=>'Etc/GMT+11',
+ 'Ulaanbaatar Standard Time'=>'Asia/Ulaanbaatar',
+ 'Venezuela Standard Time'=>'America/Caracas',
+ 'Vladivostok Standard Time'=>'Asia/Vladivostok',
+ 'W. Australia Standard Time'=>'Australia/Perth',
+ 'W. Central Africa Standard Time'=>'Africa/Lagos',
+ 'W. Europe Standard Time'=>'Europe/Berlin',
+ 'West Asia Standard Time'=>'Asia/Tashkent',
+ 'West Pacific Standard Time'=>'Pacific/Port_Moresby',
+ 'Yakutsk Standard Time'=>'Asia/Yakutsk',
+
+ // Microsoft exchange timezones
+ // Source:
+ // http://msdn.microsoft.com/en-us/library/ms988620%28v=exchg.65%29.aspx
+ //
+ // Correct timezones deduced with help from:
+ // http://en.wikipedia.org/wiki/List_of_tz_database_time_zones
+ 'Universal Coordinated Time' => 'UTC',
+ 'Casablanca, Monrovia' => 'Africa/Casablanca',
+ 'Greenwich Mean Time: Dublin, Edinburgh, Lisbon, London' => 'Europe/Lisbon',
+ 'Greenwich Mean Time; Dublin, Edinburgh, London' => 'Europe/London',
+ 'Amsterdam, Berlin, Bern, Rome, Stockholm, Vienna' => 'Europe/Berlin',
+ 'Belgrade, Pozsony, Budapest, Ljubljana, Prague' => 'Europe/Prague',
+ 'Brussels, Copenhagen, Madrid, Paris' => 'Europe/Paris',
+ 'Paris, Madrid, Brussels, Copenhagen' => 'Europe/Paris',
+ 'Prague, Central Europe' => 'Europe/Prague',
+ 'Sarajevo, Skopje, Sofija, Vilnius, Warsaw, Zagreb' => 'Europe/Sarajevo',
+ 'West Central Africa' => 'Africa/Luanda', // This was a best guess
+ 'Athens, Istanbul, Minsk' => 'Europe/Athens',
+ 'Bucharest' => 'Europe/Bucharest',
+ 'Cairo' => 'Africa/Cairo',
+ 'Harare, Pretoria' => 'Africa/Harare',
+ 'Helsinki, Riga, Tallinn' => 'Europe/Helsinki',
+ 'Israel, Jerusalem Standard Time' => 'Asia/Jerusalem',
+ 'Baghdad' => 'Asia/Baghdad',
+ 'Arab, Kuwait, Riyadh' => 'Asia/Kuwait',
+ 'Moscow, St. Petersburg, Volgograd' => 'Europe/Moscow',
+ 'East Africa, Nairobi' => 'Africa/Nairobi',
+ 'Tehran' => 'Asia/Tehran',
+ 'Abu Dhabi, Muscat' => 'Asia/Muscat', // Best guess
+ 'Baku, Tbilisi, Yerevan' => 'Asia/Baku',
+ 'Kabul' => 'Asia/Kabul',
+ 'Ekaterinburg' => 'Asia/Yekaterinburg',
+ 'Islamabad, Karachi, Tashkent' => 'Asia/Karachi',
+ 'Kolkata, Chennai, Mumbai, New Delhi, India Standard Time' => 'Asia/Calcutta',
+ 'Kathmandu, Nepal' => 'Asia/Kathmandu',
+ 'Almaty, Novosibirsk, North Central Asia' => 'Asia/Almaty',
+ 'Astana, Dhaka' => 'Asia/Dhaka',
+ 'Sri Jayawardenepura, Sri Lanka' => 'Asia/Colombo',
+ 'Rangoon' => 'Asia/Rangoon',
+ 'Bangkok, Hanoi, Jakarta' => 'Asia/Bangkok',
+ 'Krasnoyarsk' => 'Asia/Krasnoyarsk',
+ 'Beijing, Chongqing, Hong Kong SAR, Urumqi' => 'Asia/Shanghai',
+ 'Irkutsk, Ulaan Bataar' => 'Asia/Irkutsk',
+ 'Kuala Lumpur, Singapore' => 'Asia/Singapore',
+ 'Perth, Western Australia' => 'Australia/Perth',
+ 'Taipei' => 'Asia/Taipei',
+ 'Osaka, Sapporo, Tokyo' => 'Asia/Tokyo',
+ 'Seoul, Korea Standard time' => 'Asia/Seoul',
+ 'Yakutsk' => 'Asia/Yakutsk',
+ 'Adelaide, Central Australia' => 'Australia/Adelaide',
+ 'Darwin' => 'Australia/Darwin',
+ 'Brisbane, East Australia' => 'Australia/Brisbane',
+ 'Canberra, Melbourne, Sydney, Hobart (year 2000 only)' => 'Australia/Sydney',
+ 'Guam, Port Moresby' => 'Pacific/Guam',
+ 'Hobart, Tasmania' => 'Australia/Hobart',
+ 'Vladivostok' => 'Asia/Vladivostok',
+ 'Magadan, Solomon Is., New Caledonia' => 'Asia/Magadan',
+ 'Auckland, Wellington' => 'Pacific/Auckland',
+ 'Fiji Islands, Kamchatka, Marshall Is.' => 'Pacific/Fiji',
+ 'Nuku\'alofa, Tonga' => 'Pacific/Tongatapu',
+ 'Azores' => 'Atlantic/Azores',
+ 'Cape Verde Is.' => 'Atlantic/Cape_Verde',
+ 'Mid-Atlantic' => 'America/Noronha',
+ 'Brasilia' => 'America/Sao_Paulo', // Best guess
+ 'Buenos Aires' => 'America/Argentina/Buenos_Aires',
+ 'Greenland' => 'America/Godthab',
+ 'Newfoundland' => 'America/St_Johns',
+ 'Atlantic Time (Canada)' => 'America/Halifax',
+ 'Caracas, La Paz' => 'America/Caracas',
+ 'Santiago' => 'America/Santiago',
+ 'Bogota, Lima, Quito' => 'America/Bogota',
+ 'Eastern Time (US & Canada)' => 'America/New_York',
+ 'Indiana (East)' => 'America/Indiana/Indianapolis',
+ 'Central America' => 'America/Guatemala',
+ 'Central Time (US & Canada)' => 'America/Chicago',
+ 'Mexico City, Tegucigalpa' => 'America/Mexico_City',
+ 'Saskatchewan' => 'America/Edmonton',
+ 'Arizona' => 'America/Phoenix',
+ 'Mountain Time (US & Canada)' => 'America/Denver', // Best guess
+ 'Pacific Time (US & Canada); Tijuana' => 'America/Los_Angeles', // Best guess
+ 'Alaska' => 'America/Anchorage',
+ 'Hawaii' => 'Pacific/Honolulu',
+ 'Midway Island, Samoa' => 'Pacific/Midway',
+ 'Eniwetok, Kwajalein, Dateline Time' => 'Pacific/Kwajalein',
+
+ // The following list are timezone names that could be generated by
+ // Lotus / Domino
+ 'Dateline' => 'Etc/GMT-12',
+ 'Samoa' => 'Pacific/Apia',
+ 'Hawaiian' => 'Pacific/Honolulu',
+ 'Alaskan' => 'America/Anchorage',
+ 'Pacific' => 'America/Los_Angeles',
+ 'Pacific Standard Time' => 'America/Los_Angeles',
+ 'Mexico Standard Time 2' => 'America/Chihuahua',
+ 'Mountain' => 'America/Denver',
+ 'Mountain Standard Time' => 'America/Chihuahua',
+ 'US Mountain' => 'America/Phoenix',
+ 'Canada Central' => 'America/Edmonton',
+ 'Central America' => 'America/Guatemala',
+ 'Central' => 'America/Chicago',
+ 'Central Standard Time' => 'America/Mexico_City',
+ 'Mexico' => 'America/Mexico_City',
+ 'Eastern' => 'America/New_York',
+ 'SA Pacific' => 'America/Bogota',
+ 'US Eastern' => 'America/Indiana/Indianapolis',
+ 'Venezuela' => 'America/Caracas',
+ 'Atlantic' => 'America/Halifax',
+ 'Central Brazilian' => 'America/Manaus',
+ 'Pacific SA' => 'America/Santiago',
+ 'SA Western' => 'America/La_Paz',
+ 'Newfoundland' => 'America/St_Johns',
+ 'Argentina' => 'America/Argentina/Buenos_Aires',
+ 'E. South America' => 'America/Belem',
+ 'Greenland' => 'America/Godthab',
+ 'Montevideo' => 'America/Montevideo',
+ 'SA Eastern' => 'America/Belem',
+ 'Mid-Atlantic' => 'Etc/GMT-2',
+ 'Azores' => 'Atlantic/Azores',
+ 'Cape Verde' => 'Atlantic/Cape_Verde',
+ 'Greenwich' => 'Atlantic/Reykjavik', // No I'm serious.. Greenwich is not GMT.
+ 'Morocco' => 'Africa/Casablanca',
+ 'Central Europe' => 'Europe/Prague',
+ 'Central European' => 'Europe/Sarajevo',
+ 'Romance' => 'Europe/Paris',
+ 'W. Central Africa' => 'Africa/Lagos', // Best guess
+ 'W. Europe' => 'Europe/Amsterdam',
+ 'E. Europe' => 'Europe/Minsk',
+ 'Egypt' => 'Africa/Cairo',
+ 'FLE' => 'Europe/Helsinki',
+ 'GTB' => 'Europe/Athens',
+ 'Israel' => 'Asia/Jerusalem',
+ 'Jordan' => 'Asia/Amman',
+ 'Middle East' => 'Asia/Beirut',
+ 'Namibia' => 'Africa/Windhoek',
+ 'South Africa' => 'Africa/Harare',
+ 'Arab' => 'Asia/Kuwait',
+ 'Arabic' => 'Asia/Baghdad',
+ 'E. Africa' => 'Africa/Nairobi',
+ 'Georgian' => 'Asia/Tbilisi',
+ 'Russian' => 'Europe/Moscow',
+ 'Iran' => 'Asia/Tehran',
+ 'Arabian' => 'Asia/Muscat',
+ 'Armenian' => 'Asia/Yerevan',
+ 'Azerbijan' => 'Asia/Baku',
+ 'Caucasus' => 'Asia/Yerevan',
+ 'Mauritius' => 'Indian/Mauritius',
+ 'Afghanistan' => 'Asia/Kabul',
+ 'Ekaterinburg' => 'Asia/Yekaterinburg',
+ 'Pakistan' => 'Asia/Karachi',
+ 'West Asia' => 'Asia/Tashkent',
+ 'India' => 'Asia/Calcutta',
+ 'Sri Lanka' => 'Asia/Colombo',
+ 'Nepal' => 'Asia/Kathmandu',
+ 'Central Asia' => 'Asia/Dhaka',
+ 'N. Central Asia' => 'Asia/Almaty',
+ 'Myanmar' => 'Asia/Rangoon',
+ 'North Asia' => 'Asia/Krasnoyarsk',
+ 'SE Asia' => 'Asia/Bangkok',
+ 'China' => 'Asia/Shanghai',
+ 'North Asia East' => 'Asia/Irkutsk',
+ 'Singapore' => 'Asia/Singapore',
+ 'Taipei' => 'Asia/Taipei',
+ 'W. Australia' => 'Australia/Perth',
+ 'Korea' => 'Asia/Seoul',
+ 'Tokyo' => 'Asia/Tokyo',
+ 'Yakutsk' => 'Asia/Yakutsk',
+ 'AUS Central' => 'Australia/Darwin',
+ 'Cen. Australia' => 'Australia/Adelaide',
+ 'AUS Eastern' => 'Australia/Sydney',
+ 'E. Australia' => 'Australia/Brisbane',
+ 'Tasmania' => 'Australia/Hobart',
+ 'Vladivostok' => 'Asia/Vladivostok',
+ 'West Pacific' => 'Pacific/Guam',
+ 'Central Pacific' => 'Asia/Magadan',
+ 'Fiji' => 'Pacific/Fiji',
+ 'New Zealand' => 'Pacific/Auckland',
+ 'Tonga' => 'Pacific/Tongatapu',
+ );
+
+ /**
+ * List of microsoft exchange timezone ids.
+ *
+ * Source: http://msdn.microsoft.com/en-us/library/aa563018(loband).aspx
+ */
+ public static $microsoftExchangeMap = array(
+ 0 => 'UTC',
+ 31 => 'Africa/Casablanca',
+
+ // Insanely, id #2 is used for both Europe/Lisbon, and Europe/Sarajevo.
+ // I'm not even kidding.. We handle this special case in the
+ // getTimeZone method.
+ 2 => 'Europe/Lisbon',
+ 1 => 'Europe/London',
+ 4 => 'Europe/Berlin',
+ 6 => 'Europe/Prague',
+ 3 => 'Europe/Paris',
+ 69 => 'Africa/Luanda', // This was a best guess
+ 7 => 'Europe/Athens',
+ 5 => 'Europe/Bucharest',
+ 49 => 'Africa/Cairo',
+ 50 => 'Africa/Harare',
+ 59 => 'Europe/Helsinki',
+ 27 => 'Asia/Jerusalem',
+ 26 => 'Asia/Baghdad',
+ 74 => 'Asia/Kuwait',
+ 51 => 'Europe/Moscow',
+ 56 => 'Africa/Nairobi',
+ 25 => 'Asia/Tehran',
+ 24 => 'Asia/Muscat', // Best guess
+ 54 => 'Asia/Baku',
+ 48 => 'Asia/Kabul',
+ 58 => 'Asia/Yekaterinburg',
+ 47 => 'Asia/Karachi',
+ 23 => 'Asia/Calcutta',
+ 62 => 'Asia/Kathmandu',
+ 46 => 'Asia/Almaty',
+ 71 => 'Asia/Dhaka',
+ 66 => 'Asia/Colombo',
+ 61 => 'Asia/Rangoon',
+ 22 => 'Asia/Bangkok',
+ 64 => 'Asia/Krasnoyarsk',
+ 45 => 'Asia/Shanghai',
+ 63 => 'Asia/Irkutsk',
+ 21 => 'Asia/Singapore',
+ 73 => 'Australia/Perth',
+ 75 => 'Asia/Taipei',
+ 20 => 'Asia/Tokyo',
+ 72 => 'Asia/Seoul',
+ 70 => 'Asia/Yakutsk',
+ 19 => 'Australia/Adelaide',
+ 44 => 'Australia/Darwin',
+ 18 => 'Australia/Brisbane',
+ 76 => 'Australia/Sydney',
+ 43 => 'Pacific/Guam',
+ 42 => 'Australia/Hobart',
+ 68 => 'Asia/Vladivostok',
+ 41 => 'Asia/Magadan',
+ 17 => 'Pacific/Auckland',
+ 40 => 'Pacific/Fiji',
+ 67 => 'Pacific/Tongatapu',
+ 29 => 'Atlantic/Azores',
+ 53 => 'Atlantic/Cape_Verde',
+ 30 => 'America/Noronha',
+ 8 => 'America/Sao_Paulo', // Best guess
+ 32 => 'America/Argentina/Buenos_Aires',
+ 60 => 'America/Godthab',
+ 28 => 'America/St_Johns',
+ 9 => 'America/Halifax',
+ 33 => 'America/Caracas',
+ 65 => 'America/Santiago',
+ 35 => 'America/Bogota',
+ 10 => 'America/New_York',
+ 34 => 'America/Indiana/Indianapolis',
+ 55 => 'America/Guatemala',
+ 11 => 'America/Chicago',
+ 37 => 'America/Mexico_City',
+ 36 => 'America/Edmonton',
+ 38 => 'America/Phoenix',
+ 12 => 'America/Denver', // Best guess
+ 13 => 'America/Los_Angeles', // Best guess
+ 14 => 'America/Anchorage',
+ 15 => 'Pacific/Honolulu',
+ 16 => 'Pacific/Midway',
+ 39 => 'Pacific/Kwajalein',
+ );
+
+ /**
+ * This method will try to find out the correct timezone for an iCalendar
+ * date-time value.
+ *
+ * You must pass the contents of the TZID parameter, as well as the full
+ * calendar.
+ *
+ * If the lookup fails, this method will return the default PHP timezone
+ * (as configured using date_default_timezone_set, or the date.timezone ini
+ * setting).
+ *
+ * Alternatively, if $failIfUncertain is set to true, it will throw an
+ * exception if we cannot accurately determine the timezone.
+ *
+ * @param string $tzid
+ * @param Sabre\VObject\Component $vcalendar
+ * @return DateTimeZone
+ */
+ static public function getTimeZone($tzid, Component $vcalendar = null, $failIfUncertain = false) {
+
+ // First we will just see if the tzid is a support timezone identifier.
+ try {
+ return new \DateTimeZone($tzid);
+ } catch (\Exception $e) {
+ }
+
+ // Next, we check if the tzid is somewhere in our tzid map.
+ if (isset(self::$map[$tzid])) {
+ return new \DateTimeZone(self::$map[$tzid]);
+ }
+
+ // Maybe the author was hyper-lazy and just included an offset. We
+ // support it, but we aren't happy about it.
+ if (preg_match('/^GMT(\+|-)([0-9]{4})$/', $tzid, $matches)) {
+ return new \DateTimeZone('Etc/GMT' . $matches[1] . ltrim(substr($matches[2],0,2),'0'));
+ }
+
+ if ($vcalendar) {
+
+ // If that didn't work, we will scan VTIMEZONE objects
+ foreach($vcalendar->select('VTIMEZONE') as $vtimezone) {
+
+ if ((string)$vtimezone->TZID === $tzid) {
+
+ // Some clients add 'X-LIC-LOCATION' with the olson name.
+ if (isset($vtimezone->{'X-LIC-LOCATION'})) {
+
+ $lic = (string)$vtimezone->{'X-LIC-LOCATION'};
+
+ // Libical generators may specify strings like
+ // "SystemV/EST5EDT". For those we must remove the
+ // SystemV part.
+ if (substr($lic,0,8)==='SystemV/') {
+ $lic = substr($lic,8);
+ }
+
+ try {
+ return new \DateTimeZone($lic);
+ } catch (\Exception $e) {
+ }
+
+ }
+ // Microsoft may add a magic number, which we also have an
+ // answer for.
+ if (isset($vtimezone->{'X-MICROSOFT-CDO-TZID'})) {
+ $cdoId = (int)$vtimezone->{'X-MICROSOFT-CDO-TZID'}->value;
+
+ // 2 can mean both Europe/Lisbon and Europe/Sarajevo.
+ if ($cdoId===2 && strpos((string)$vtimezone->TZID, 'Sarajevo')!==false) {
+ return new \DateTimeZone('Europe/Sarajevo');
+ }
+
+ if (isset(self::$microsoftExchangeMap[$cdoId])) {
+ return new \DateTimeZone(self::$microsoftExchangeMap[$cdoId]);
+ }
+ }
+
+ }
+
+ }
+
+ }
+
+ if ($failIfUncertain) {
+ throw new \InvalidArgumentException('We were unable to determine the correct PHP timezone for tzid: ' . $tzid);
+ }
+
+ // If we got all the way here, we default to UTC.
+ return new \DateTimeZone(date_default_timezone_get());
+
+ }
+
+}
diff --git a/vendor/sabre/vobject/lib/Sabre/VObject/Version.php b/vendor/sabre/vobject/lib/Sabre/VObject/Version.php
new file mode 100644
index 000000000..2a64140f4
--- /dev/null
+++ b/vendor/sabre/vobject/lib/Sabre/VObject/Version.php
@@ -0,0 +1,24 @@
+<?php
+
+namespace Sabre\VObject;
+
+/**
+ * This class contains the version number for the VObject package
+ *
+ * @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 Version {
+
+ /**
+ * Full version number
+ */
+ const VERSION = '2.1.3';
+
+ /**
+ * Stability : alpha, beta, stable
+ */
+ const STABILITY = 'stable';
+
+}
diff --git a/vendor/sabre/vobject/lib/Sabre/VObject/includes.php b/vendor/sabre/vobject/lib/Sabre/VObject/includes.php
new file mode 100644
index 000000000..d15329a6a
--- /dev/null
+++ b/vendor/sabre/vobject/lib/Sabre/VObject/includes.php
@@ -0,0 +1,41 @@
+<?php
+
+/**
+ * Includes file
+ *
+ * This file includes the entire VObject library in one go.
+ * The benefit is that an autoloader is not needed, which is often faster.
+ *
+ * @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
+ */
+
+// Begin includes
+include __DIR__ . '/DateTimeParser.php';
+include __DIR__ . '/ElementList.php';
+include __DIR__ . '/FreeBusyGenerator.php';
+include __DIR__ . '/Node.php';
+include __DIR__ . '/Parameter.php';
+include __DIR__ . '/ParseException.php';
+include __DIR__ . '/Property.php';
+include __DIR__ . '/Reader.php';
+include __DIR__ . '/RecurrenceIterator.php';
+include __DIR__ . '/Splitter/SplitterInterface.php';
+include __DIR__ . '/StringUtil.php';
+include __DIR__ . '/TimeZoneUtil.php';
+include __DIR__ . '/Version.php';
+include __DIR__ . '/Splitter/VCard.php';
+include __DIR__ . '/Component.php';
+include __DIR__ . '/Document.php';
+include __DIR__ . '/Property/Compound.php';
+include __DIR__ . '/Property/DateTime.php';
+include __DIR__ . '/Property/MultiDateTime.php';
+include __DIR__ . '/Splitter/ICalendar.php';
+include __DIR__ . '/Component/VAlarm.php';
+include __DIR__ . '/Component/VCalendar.php';
+include __DIR__ . '/Component/VEvent.php';
+include __DIR__ . '/Component/VFreeBusy.php';
+include __DIR__ . '/Component/VJournal.php';
+include __DIR__ . '/Component/VTodo.php';
+// End includes