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friendica-addons/dav/SabreDAV/lib/Sabre/CalDAV/Plugin.php

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Initial Release of the calendar plugin
2012-06-03 18:19:28 +00:00
<?php
/**
* CalDAV plugin
*
* This plugin provides functionality added by CalDAV (RFC 4791)
* It implements new reports, and the MKCALENDAR method.
*
* @package Sabre
* @subpackage CalDAV
* @copyright Copyright (C) 2007-2012 Rooftop Solutions. All rights reserved.
* @author Evert Pot (http://www.rooftopsolutions.nl/)
* @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
*/
class Sabre_CalDAV_Plugin extends Sabre_DAV_ServerPlugin {
/**
* This is the official CalDAV namespace
*/
const NS_CALDAV = 'urn:ietf:params:xml:ns:caldav';
/**
* This is the namespace for the proprietary calendarserver extensions
*/
const NS_CALENDARSERVER = 'http://calendarserver.org/ns/';
/**
* The hardcoded root for calendar objects. It is unfortunate
* that we're stuck with it, but it will have to do for now
*/
const CALENDAR_ROOT = 'calendars';
/**
* Reference to server object
*
* @var Sabre_DAV_Server
*/
private $server;
/**
* The email handler for invites and other scheduling messages.
*
* @var Sabre_CalDAV_Schedule_IMip
*/
protected $imipHandler;
/**
* Sets the iMIP handler.
*
* iMIP = The email transport of iCalendar scheduling messages. Setting
* this is optional, but if you want the server to allow invites to be sent
* out, you must set a handler.
*
* Specifically iCal will plain assume that the server supports this. If
* the server doesn't, iCal will display errors when inviting people to
* events.
*
* @param Sabre_CalDAV_Schedule_IMip $imipHandler
* @return void
*/
public function setIMipHandler(Sabre_CalDAV_Schedule_IMip $imipHandler) {
$this->imipHandler = $imipHandler;
}
/**
* Use this method to tell the server this plugin defines additional
* HTTP methods.
*
* This method is passed a uri. It should only return HTTP methods that are
* available for the specified uri.
*
* @param string $uri
* @return array
*/
public function getHTTPMethods($uri) {
// The MKCALENDAR is only available on unmapped uri's, whose
// parents extend IExtendedCollection
list($parent, $name) = Sabre_DAV_URLUtil::splitPath($uri);
$node = $this->server->tree->getNodeForPath($parent);
if ($node instanceof Sabre_DAV_IExtendedCollection) {
try {
$node->getChild($name);
} catch (Sabre_DAV_Exception_NotFound $e) {
return array('MKCALENDAR');
}
}
return array();
}
/**
* Returns a list of features for the DAV: HTTP header.
*
* @return array
*/
public function getFeatures() {
return array('calendar-access', 'calendar-proxy');
}
/**
* Returns a plugin name.
*
* Using this name other plugins will be able to access other plugins
* using Sabre_DAV_Server::getPlugin
*
* @return string
*/
public function getPluginName() {
return 'caldav';
}
/**
* Returns a list of reports this plugin supports.
*
* This will be used in the {DAV:}supported-report-set property.
* Note that you still need to subscribe to the 'report' event to actually
* implement them
*
* @param string $uri
* @return array
*/
public function getSupportedReportSet($uri) {
$node = $this->server->tree->getNodeForPath($uri);
$reports = array();
if ($node instanceof Sabre_CalDAV_ICalendar || $node instanceof Sabre_CalDAV_ICalendarObject) {
$reports[] = '{' . self::NS_CALDAV . '}calendar-multiget';
$reports[] = '{' . self::NS_CALDAV . '}calendar-query';
}
if ($node instanceof Sabre_CalDAV_ICalendar) {
$reports[] = '{' . self::NS_CALDAV . '}free-busy-query';
}
return $reports;
}
/**
* Initializes the plugin
*
* @param Sabre_DAV_Server $server
* @return void
*/
public function initialize(Sabre_DAV_Server $server) {
$this->server = $server;
$server->subscribeEvent('unknownMethod',array($this,'unknownMethod'));
//$server->subscribeEvent('unknownMethod',array($this,'unknownMethod2'),1000);
$server->subscribeEvent('report',array($this,'report'));
$server->subscribeEvent('beforeGetProperties',array($this,'beforeGetProperties'));
$server->subscribeEvent('onHTMLActionsPanel', array($this,'htmlActionsPanel'));
$server->subscribeEvent('onBrowserPostAction', array($this,'browserPostAction'));
$server->subscribeEvent('beforeWriteContent', array($this, 'beforeWriteContent'));
$server->subscribeEvent('beforeCreateFile', array($this, 'beforeCreateFile'));
$server->xmlNamespaces[self::NS_CALDAV] = 'cal';
$server->xmlNamespaces[self::NS_CALENDARSERVER] = 'cs';
$server->propertyMap['{' . self::NS_CALDAV . '}supported-calendar-component-set'] = 'Sabre_CalDAV_Property_SupportedCalendarComponentSet';
$server->resourceTypeMapping['Sabre_CalDAV_ICalendar'] = '{urn:ietf:params:xml:ns:caldav}calendar';
$server->resourceTypeMapping['Sabre_CalDAV_Schedule_IOutbox'] = '{urn:ietf:params:xml:ns:caldav}schedule-outbox';
$server->resourceTypeMapping['Sabre_CalDAV_Principal_ProxyRead'] = '{http://calendarserver.org/ns/}calendar-proxy-read';
$server->resourceTypeMapping['Sabre_CalDAV_Principal_ProxyWrite'] = '{http://calendarserver.org/ns/}calendar-proxy-write';
array_push($server->protectedProperties,
'{' . self::NS_CALDAV . '}supported-calendar-component-set',
'{' . self::NS_CALDAV . '}supported-calendar-data',
'{' . self::NS_CALDAV . '}max-resource-size',
'{' . self::NS_CALDAV . '}min-date-time',
'{' . self::NS_CALDAV . '}max-date-time',
'{' . self::NS_CALDAV . '}max-instances',
'{' . self::NS_CALDAV . '}max-attendees-per-instance',
'{' . self::NS_CALDAV . '}calendar-home-set',
'{' . self::NS_CALDAV . '}supported-collation-set',
'{' . self::NS_CALDAV . '}calendar-data',
// scheduling extension
'{' . self::NS_CALDAV . '}schedule-inbox-URL',
'{' . self::NS_CALDAV . '}schedule-outbox-URL',
'{' . self::NS_CALDAV . '}calendar-user-address-set',
'{' . self::NS_CALDAV . '}calendar-user-type',
// CalendarServer extensions
'{' . self::NS_CALENDARSERVER . '}getctag',
'{' . self::NS_CALENDARSERVER . '}calendar-proxy-read-for',
'{' . self::NS_CALENDARSERVER . '}calendar-proxy-write-for'
);
}
/**
* This function handles support for the MKCALENDAR method
*
* @param string $method
* @param string $uri
* @return bool
*/
public function unknownMethod($method, $uri) {
switch ($method) {
case 'MKCALENDAR' :
$this->httpMkCalendar($uri);
// false is returned to stop the propagation of the
// unknownMethod event.
return false;
case 'POST' :
// Checking if we're talking to an outbox
try {
$node = $this->server->tree->getNodeForPath($uri);
} catch (Sabre_DAV_Exception_NotFound $e) {
return;
}
if (!$node instanceof Sabre_CalDAV_Schedule_IOutbox)
return;
$this->outboxRequest($node);
return false;
}
}
/**
* This functions handles REPORT requests specific to CalDAV
*
* @param string $reportName
* @param DOMNode $dom
* @return bool
*/
public function report($reportName,$dom) {
switch($reportName) {
case '{'.self::NS_CALDAV.'}calendar-multiget' :
$this->calendarMultiGetReport($dom);
return false;
case '{'.self::NS_CALDAV.'}calendar-query' :
$this->calendarQueryReport($dom);
return false;
case '{'.self::NS_CALDAV.'}free-busy-query' :
$this->freeBusyQueryReport($dom);
return false;
}
}
/**
* This function handles the MKCALENDAR HTTP method, which creates
* a new calendar.
*
* @param string $uri
* @return void
*/
public function httpMkCalendar($uri) {
// Due to unforgivable bugs in iCal, we're completely disabling MKCALENDAR support
// for clients matching iCal in the user agent
//$ua = $this->server->httpRequest->getHeader('User-Agent');
//if (strpos($ua,'iCal/')!==false) {
// throw new Sabre_DAV_Exception_Forbidden('iCal has major bugs in it\'s RFC3744 support. Therefore we are left with no other choice but disabling this feature.');
//}
$body = $this->server->httpRequest->getBody(true);
$properties = array();
if ($body) {
$dom = Sabre_DAV_XMLUtil::loadDOMDocument($body);
foreach($dom->firstChild->childNodes as $child) {
if (Sabre_DAV_XMLUtil::toClarkNotation($child)!=='{DAV:}set') continue;
foreach(Sabre_DAV_XMLUtil::parseProperties($child,$this->server->propertyMap) as $k=>$prop) {
$properties[$k] = $prop;
}
}
}
$resourceType = array('{DAV:}collection','{urn:ietf:params:xml:ns:caldav}calendar');
$this->server->createCollection($uri,$resourceType,$properties);
$this->server->httpResponse->sendStatus(201);
$this->server->httpResponse->setHeader('Content-Length',0);
}
/**
* beforeGetProperties
*
* This method handler is invoked before any after properties for a
* resource are fetched. This allows us to add in any CalDAV specific
* properties.
*
* @param string $path
* @param Sabre_DAV_INode $node
* @param array $requestedProperties
* @param array $returnedProperties
* @return void
*/
public function beforeGetProperties($path, Sabre_DAV_INode $node, &$requestedProperties, &$returnedProperties) {
if ($node instanceof Sabre_DAVACL_IPrincipal) {
// calendar-home-set property
$calHome = '{' . self::NS_CALDAV . '}calendar-home-set';
if (in_array($calHome,$requestedProperties)) {
$principalId = $node->getName();
$calendarHomePath = self::CALENDAR_ROOT . '/' . $principalId . '/';
unset($requestedProperties[$calHome]);
$returnedProperties[200][$calHome] = new Sabre_DAV_Property_Href($calendarHomePath);
}
// schedule-outbox-URL property
$scheduleProp = '{' . self::NS_CALDAV . '}schedule-outbox-URL';
if (in_array($scheduleProp,$requestedProperties)) {
$principalId = $node->getName();
$outboxPath = self::CALENDAR_ROOT . '/' . $principalId . '/outbox';
unset($requestedProperties[$scheduleProp]);
$returnedProperties[200][$scheduleProp] = new Sabre_DAV_Property_Href($outboxPath);
}
// calendar-user-address-set property
$calProp = '{' . self::NS_CALDAV . '}calendar-user-address-set';
if (in_array($calProp,$requestedProperties)) {
$addresses = $node->getAlternateUriSet();
$addresses[] = $this->server->getBaseUri() . $node->getPrincipalUrl();
unset($requestedProperties[$calProp]);
$returnedProperties[200][$calProp] = new Sabre_DAV_Property_HrefList($addresses, false);
}
// These two properties are shortcuts for ical to easily find
// other principals this principal has access to.
$propRead = '{' . self::NS_CALENDARSERVER . '}calendar-proxy-read-for';
$propWrite = '{' . self::NS_CALENDARSERVER . '}calendar-proxy-write-for';
if (in_array($propRead,$requestedProperties) || in_array($propWrite,$requestedProperties)) {
$membership = $node->getGroupMembership();
$readList = array();
$writeList = array();
foreach($membership as $group) {
$groupNode = $this->server->tree->getNodeForPath($group);
// If the node is either ap proxy-read or proxy-write
// group, we grab the parent principal and add it to the
// list.
if ($groupNode instanceof Sabre_CalDAV_Principal_ProxyRead) {
list($readList[]) = Sabre_DAV_URLUtil::splitPath($group);
}
if ($groupNode instanceof Sabre_CalDAV_Principal_ProxyWrite) {
list($writeList[]) = Sabre_DAV_URLUtil::splitPath($group);
}
}
if (in_array($propRead,$requestedProperties)) {
unset($requestedProperties[$propRead]);
$returnedProperties[200][$propRead] = new Sabre_DAV_Property_HrefList($readList);
}
if (in_array($propWrite,$requestedProperties)) {
unset($requestedProperties[$propWrite]);
$returnedProperties[200][$propWrite] = new Sabre_DAV_Property_HrefList($writeList);
}
}
} // instanceof IPrincipal
if ($node instanceof Sabre_CalDAV_ICalendarObject) {
// The calendar-data property is not supposed to be a 'real'
// property, but in large chunks of the spec it does act as such.
// Therefore we simply expose it as a property.
$calDataProp = '{' . Sabre_CalDAV_Plugin::NS_CALDAV . '}calendar-data';
if (in_array($calDataProp, $requestedProperties)) {
unset($requestedProperties[$calDataProp]);
$val = $node->get();
if (is_resource($val))
$val = stream_get_contents($val);
// Taking out \r to not screw up the xml output
$returnedProperties[200][$calDataProp] = str_replace("\r","", $val);
}
}
}
/**
* This function handles the calendar-multiget REPORT.
*
* This report is used by the client to fetch the content of a series
* of urls. Effectively avoiding a lot of redundant requests.
*
* @param DOMNode $dom
* @return void
*/
public function calendarMultiGetReport($dom) {
$properties = array_keys(Sabre_DAV_XMLUtil::parseProperties($dom->firstChild));
$hrefElems = $dom->getElementsByTagNameNS('urn:DAV','href');
$xpath = new DOMXPath($dom);
$xpath->registerNameSpace('cal',Sabre_CalDAV_Plugin::NS_CALDAV);
$xpath->registerNameSpace('dav','urn:DAV');
$expand = $xpath->query('/cal:calendar-multiget/dav:prop/cal:calendar-data/cal:expand');
if ($expand->length>0) {
$expandElem = $expand->item(0);
$start = $expandElem->getAttribute('start');
$end = $expandElem->getAttribute('end');
if(!$start || !$end) {
throw new Sabre_DAV_Exception_BadRequest('The "start" and "end" attributes are required for the CALDAV:expand element');
}
$start = Sabre_VObject_DateTimeParser::parseDateTime($start);
$end = Sabre_VObject_DateTimeParser::parseDateTime($end);
if ($end <= $start) {
throw new Sabre_DAV_Exception_BadRequest('The end-date must be larger than the start-date in the expand element.');
}
$expand = true;
} else {
$expand = false;
}
foreach($hrefElems as $elem) {
$uri = $this->server->calculateUri($elem->nodeValue);
list($objProps) = $this->server->getPropertiesForPath($uri,$properties);
if ($expand && isset($objProps[200]['{' . self::NS_CALDAV . '}calendar-data'])) {
$vObject = Sabre_VObject_Reader::read($objProps[200]['{' . self::NS_CALDAV . '}calendar-data']);
$vObject->expand($start, $end);
$objProps[200]['{' . self::NS_CALDAV . '}calendar-data'] = $vObject->serialize();
}
$propertyList[]=$objProps;
}
$this->server->httpResponse->sendStatus(207);
$this->server->httpResponse->setHeader('Content-Type','application/xml; charset=utf-8');
$this->server->httpResponse->sendBody($this->server->generateMultiStatus($propertyList));
}
/**
* This function handles the calendar-query REPORT
*
* This report is used by clients to request calendar objects based on
* complex conditions.
*
* @param DOMNode $dom
* @return void
*/
public function calendarQueryReport($dom) {
$parser = new Sabre_CalDAV_CalendarQueryParser($dom);
$parser->parse();
$node = $this->server->tree->getNodeForPath($this->server->getRequestUri());
$depth = $this->server->getHTTPDepth(0);
// The default result is an empty array
$result = array();
// The calendarobject was requested directly. In this case we handle
// this locally.
if ($depth == 0 && $node instanceof Sabre_CalDAV_ICalendarObject) {
$requestedCalendarData = true;
$requestedProperties = $parser->requestedProperties;
if (!in_array('{urn:ietf:params:xml:ns:caldav}calendar-data', $requestedProperties)) {
// We always retrieve calendar-data, as we need it for filtering.
$requestedProperties[] = '{urn:ietf:params:xml:ns:caldav}calendar-data';
// If calendar-data wasn't explicitly requested, we need to remove
// it after processing.
$requestedCalendarData = false;
}
$properties = $this->server->getPropertiesForPath(
$this->server->getRequestUri(),
$requestedProperties,
0
);
// This array should have only 1 element, the first calendar
// object.
$properties = current($properties);
// If there wasn't any calendar-data returned somehow, we ignore
// this.
if (isset($properties[200]['{urn:ietf:params:xml:ns:caldav}calendar-data'])) {
$validator = new Sabre_CalDAV_CalendarQueryValidator();
$vObject = Sabre_VObject_Reader::read($properties[200]['{urn:ietf:params:xml:ns:caldav}calendar-data']);
if ($validator->validate($vObject,$parser->filters)) {
// If the client didn't require the calendar-data property,
// we won't give it back.
if (!$requestedCalendarData) {
unset($properties[200]['{urn:ietf:params:xml:ns:caldav}calendar-data']);
} else {
if ($parser->expand) {
$vObject->expand($parser->expand['start'], $parser->expand['end']);
$properties[200]['{' . self::NS_CALDAV . '}calendar-data'] = $vObject->serialize();
}
}
$result = array($properties);
}
}
}
// If we're dealing with a calendar, the calendar itself is responsible
// for the calendar-query.
if ($node instanceof Sabre_CalDAV_ICalendar && $depth = 1) {
$nodePaths = $node->calendarQuery($parser->filters);
foreach($nodePaths as $path) {
list($properties) =
$this->server->getPropertiesForPath($this->server->getRequestUri() . '/' . $path, $parser->requestedProperties);
if ($parser->expand) {
// We need to do some post-processing
$vObject = Sabre_VObject_Reader::read($properties[200]['{urn:ietf:params:xml:ns:caldav}calendar-data']);
$vObject->expand($parser->expand['start'], $parser->expand['end']);
$properties[200]['{' . self::NS_CALDAV . '}calendar-data'] = $vObject->serialize();
}
$result[] = $properties;
}
}
$this->server->httpResponse->sendStatus(207);
$this->server->httpResponse->setHeader('Content-Type','application/xml; charset=utf-8');
$this->server->httpResponse->sendBody($this->server->generateMultiStatus($result));
}
/**
* This method is responsible for parsing the request and generating the
* response for the CALDAV:free-busy-query REPORT.
*
* @param DOMNode $dom
* @return void
*/
protected function freeBusyQueryReport(DOMNode $dom) {
$start = null;
$end = null;
foreach($dom->firstChild->childNodes as $childNode) {
$clark = Sabre_DAV_XMLUtil::toClarkNotation($childNode);
if ($clark == '{' . self::NS_CALDAV . '}time-range') {
$start = $childNode->getAttribute('start');
$end = $childNode->getAttribute('end');
break;
}
}
if ($start) {
$start = Sabre_VObject_DateTimeParser::parseDateTime($start);
}
if ($end) {
$end = Sabre_VObject_DateTimeParser::parseDateTime($end);
}
if (!$start && !$end) {
throw new Sabre_DAV_Exception_BadRequest('The freebusy report must have a time-range filter');
}
$acl = $this->server->getPlugin('acl');
if (!$acl) {
throw new Sabre_DAV_Exception('The ACL plugin must be loaded for free-busy queries to work');
}
$uri = $this->server->getRequestUri();
$acl->checkPrivileges($uri,'{' . self::NS_CALDAV . '}read-free-busy');
$calendar = $this->server->tree->getNodeForPath($uri);
if (!$calendar instanceof Sabre_CalDAV_ICalendar) {
throw new Sabre_DAV_Exception_NotImplemented('The free-busy-query REPORT is only implemented on calendars');
}
$objects = array_map(function($child) {
$obj = $child->get();
if (is_resource($obj)) {
$obj = stream_get_contents($obj);
}
return $obj;
}, $calendar->getChildren());
$generator = new Sabre_VObject_FreeBusyGenerator();
$generator->setObjects($objects);
$generator->setTimeRange($start, $end);
$result = $generator->getResult();
$result = $result->serialize();
$this->server->httpResponse->sendStatus(200);
$this->server->httpResponse->setHeader('Content-Type', 'text/calendar');
$this->server->httpResponse->setHeader('Content-Length', strlen($result));
$this->server->httpResponse->sendBody($result);
}
/**
* This method is triggered before a file gets updated with new content.
*
* This plugin uses this method to ensure that CalDAV objects receive
* valid calendar data.
*
* @param string $path
* @param Sabre_DAV_IFile $node
* @param resource $data
* @return void
*/
public function beforeWriteContent($path, Sabre_DAV_IFile $node, &$data) {
if (!$node instanceof Sabre_CalDAV_ICalendarObject)
return;
$this->validateICalendar($data);
}
/**
* This method is triggered before a new file is created.
*
* This plugin uses this method to ensure that newly created calendar
* objects contain valid calendar data.
*
* @param string $path
* @param resource $data
* @param Sabre_DAV_ICollection $parentNode
* @return void
*/
public function beforeCreateFile($path, &$data, Sabre_DAV_ICollection $parentNode) {
if (!$parentNode instanceof Sabre_CalDAV_Calendar)
return;
$this->validateICalendar($data);
}
/**
* Checks if the submitted iCalendar data is in fact, valid.
*
* An exception is thrown if it's not.
*
* @param resource|string $data
* @return void
*/
protected function validateICalendar(&$data) {
// If it's a stream, we convert it to a string first.
if (is_resource($data)) {
$data = stream_get_contents($data);
}
// Converting the data to unicode, if needed.
$data = Sabre_DAV_StringUtil::ensureUTF8($data);
try {
$vobj = Sabre_VObject_Reader::read($data);
} catch (Sabre_VObject_ParseException $e) {
throw new Sabre_DAV_Exception_UnsupportedMediaType('This resource only supports valid iCalendar 2.0 data. Parse error: ' . $e->getMessage());
}
if ($vobj->name !== 'VCALENDAR') {
throw new Sabre_DAV_Exception_UnsupportedMediaType('This collection can only support iCalendar objects.');
}
$foundType = null;
$foundUID = null;
foreach($vobj->getComponents() as $component) {
switch($component->name) {
case 'VTIMEZONE' :
continue 2;
case 'VEVENT' :
case 'VTODO' :
case 'VJOURNAL' :
if (is_null($foundType)) {
$foundType = $component->name;
if (!isset($component->UID)) {
throw new Sabre_DAV_Exception_BadRequest('Every ' . $component->name . ' component must have an UID');
}
$foundUID = (string)$component->UID;
} else {
if ($foundType !== $component->name) {
throw new Sabre_DAV_Exception_BadRequest('A calendar object must only contain 1 component. We found a ' . $component->name . ' as well as a ' . $foundType);
}
if ($foundUID !== (string)$component->UID) {
throw new Sabre_DAV_Exception_BadRequest('Every ' . $component->name . ' in this object must have identical UIDs');
}
}
break;
default :
throw new Sabre_DAV_Exception_BadRequest('You are not allowed to create components of type: ' . $component->name . ' here');
}
}
if (!$foundType)
throw new Sabre_DAV_Exception_BadRequest('iCalendar object must contain at least 1 of VEVENT, VTODO or VJOURNAL');
}
/**
* This method handles POST requests to the schedule-outbox
*
* @param Sabre_CalDAV_Schedule_IOutbox $outboxNode
* @return void
*/
public function outboxRequest(Sabre_CalDAV_Schedule_IOutbox $outboxNode) {
$originator = $this->server->httpRequest->getHeader('Originator');
$recipients = $this->server->httpRequest->getHeader('Recipient');
if (!$originator) {
throw new Sabre_DAV_Exception_BadRequest('The Originator: header must be specified when making POST requests');
}
if (!$recipients) {
throw new Sabre_DAV_Exception_BadRequest('The Recipient: header must be specified when making POST requests');
}
if (!preg_match('/^mailto:(.*)@(.*)$/', $originator)) {
throw new Sabre_DAV_Exception_BadRequest('Originator must start with mailto: and must be valid email address');
}
$originator = substr($originator,7);
$recipients = explode(',',$recipients);
foreach($recipients as $k=>$recipient) {
$recipient = trim($recipient);
if (!preg_match('/^mailto:(.*)@(.*)$/', $recipient)) {
throw new Sabre_DAV_Exception_BadRequest('Recipients must start with mailto: and must be valid email address');
}
$recipient = substr($recipient, 7);
$recipients[$k] = $recipient;
}
// We need to make sure that 'originator' matches one of the email
// addresses of the selected principal.
$principal = $outboxNode->getOwner();
$props = $this->server->getProperties($principal,array(
'{' . self::NS_CALDAV . '}calendar-user-address-set',
));
$addresses = array();
if (isset($props['{' . self::NS_CALDAV . '}calendar-user-address-set'])) {
$addresses = $props['{' . self::NS_CALDAV . '}calendar-user-address-set']->getHrefs();
}
if (!in_array('mailto:' . $originator, $addresses)) {
throw new Sabre_DAV_Exception_Forbidden('The addresses specified in the Originator header did not match any addresses in the owners calendar-user-address-set header');
}
try {
$vObject = Sabre_VObject_Reader::read($this->server->httpRequest->getBody(true));
} catch (Sabre_VObject_ParseException $e) {
throw new Sabre_DAV_Exception_BadRequest('The request body must be a valid iCalendar object. Parse error: ' . $e->getMessage());
}
// Checking for the object type
$componentType = null;
foreach($vObject->getComponents() as $component) {
if ($component->name !== 'VTIMEZONE') {
$componentType = $component->name;
break;
}
}
if (is_null($componentType)) {
throw new Sabre_DAV_Exception_BadRequest('We expected at least one VTODO, VJOURNAL, VFREEBUSY or VEVENT component');
}
// Validating the METHOD
$method = strtoupper((string)$vObject->METHOD);
if (!$method) {
throw new Sabre_DAV_Exception_BadRequest('A METHOD property must be specified in iTIP messages');
}
if (in_array($method, array('REQUEST','REPLY','ADD','CANCEL')) && $componentType==='VEVENT') {
$this->iMIPMessage($originator, $recipients, $vObject, $principal);
$this->server->httpResponse->sendStatus(200);
$this->server->httpResponse->sendBody('Messages sent');
} else {
throw new Sabre_DAV_Exception_NotImplemented('This iTIP method is currently not implemented');
}
}
/**
* Sends an iMIP message by email.
*
* @param string $originator
* @param array $recipients
* @param Sabre_VObject_Component $vObject
* @param string $principal Principal url
* @return void
*/
protected function iMIPMessage($originator, array $recipients, Sabre_VObject_Component $vObject, $principal) {
if (!$this->imipHandler) {
throw new Sabre_DAV_Exception_NotImplemented('No iMIP handler is setup on this server.');
}
$this->imipHandler->sendMessage($originator, $recipients, $vObject, $principal);
}
/**
* This method is used to generate HTML output for the
* Sabre_DAV_Browser_Plugin. This allows us to generate an interface users
* can use to create new calendars.
*
* @param Sabre_DAV_INode $node
* @param string $output
* @return bool
*/
public function htmlActionsPanel(Sabre_DAV_INode $node, &$output) {
if (!$node instanceof Sabre_CalDAV_UserCalendars)
return;
$output.= '<tr><td colspan="2"><form method="post" action="">
<h3>Create new calendar</h3>
<input type="hidden" name="sabreAction" value="mkcalendar" />
<label>Name (uri):</label> <input type="text" name="name" /><br />
<label>Display name:</label> <input type="text" name="{DAV:}displayname" /><br />
<input type="submit" value="create" />
</form>
</td></tr>';
return false;
}
/**
* This method allows us to intercept the 'mkcalendar' sabreAction. This
* action enables the user to create new calendars from the browser plugin.
*
* @param string $uri
* @param string $action
* @param array $postVars
* @return bool
*/
public function browserPostAction($uri, $action, array $postVars) {
if ($action!=='mkcalendar')
return;
$resourceType = array('{DAV:}collection','{urn:ietf:params:xml:ns:caldav}calendar');
$properties = array();
if (isset($postVars['{DAV:}displayname'])) {
$properties['{DAV:}displayname'] = $postVars['{DAV:}displayname'];
}
$this->server->createCollection($uri . '/' . $postVars['name'],$resourceType,$properties);
return false;
}
}
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