/**
* 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);
}
}
}
/**
* Triggered before properties are looked up in specific nodes.
*
* @param string $uri
* @param Sabre_DAV_INode $node
* @param array $requestedProperties
* @param array $returnedProperties
* @TODO really should be broken into multiple methods, or even a class.
* @return void
*/
public function beforeGetProperties($uri, Sabre_DAV_INode $node, &$requestedProperties, &$returnedProperties)
{
// Checking the read permission
if (!$this->checkPrivileges($uri, '{DAV:}read', self::R_PARENT, false)) {
// User is not allowed to read properties
if ($this->hideNodesFromListings) {
return false;
}
// Marking all requested properties as '403'.
foreach ($requestedProperties as $key => $requestedProperty) {
unset($requestedProperties[$key]);
$returnedProperties[403][$requestedProperty] = null;
}
return;
}
/* Adding principal properties */
if ($node instanceof Sabre_DAVACL_IPrincipal) {
if (false !== ($index = array_search('{DAV:}alternate-URI-set', $requestedProperties))) {
unset($requestedProperties[$index]);
$returnedProperties[200]['{DAV:}alternate-URI-set'] = new Sabre_DAV_Property_HrefList($node->getAlternateUriSet());
}
if (false !== ($index = array_search('{DAV:}principal-URL', $requestedProperties))) {
unset($requestedProperties[$index]);
$returnedProperties[200]['{DAV:}principal-URL'] = new Sabre_DAV_Property_Href($node->getPrincipalUrl() . '/');
}
if (false !== ($index = array_search('{DAV:}group-member-set', $requestedProperties))) {
unset($requestedProperties[$index]);
$returnedProperties[200]['{DAV:}group-member-set'] = new Sabre_DAV_Property_HrefList($node->getGroupMemberSet());
}
if (false !== ($index = array_search('{DAV:}group-membership', $requestedProperties))) {
unset($requestedProperties[$index]);
$returnedProperties[200]['{DAV:}group-membership'] = new Sabre_DAV_Property_HrefList($node->getGroupMembership());
}
if (false !== ($index = array_search('{DAV:}displayname', $requestedProperties))) {
$returnedProperties[200]['{DAV:}displayname'] = $node->getDisplayName();
}
}
if (false !== ($index = array_search('{DAV:}principal-collection-set', $requestedProperties))) {
unset($requestedProperties[$index]);
$val = $this->principalCollectionSet;
// Ensuring all collections end with a slash
foreach ($val as $k => $v) {
$val[$k] = $v . '/';
}
$returnedProperties[200]['{DAV:}principal-collection-set'] = new Sabre_DAV_Property_HrefList($val);
}
if (false !== ($index = array_search('{DAV:}current-user-principal', $requestedProperties))) {
unset($requestedProperties[$index]);
if ($url = $this->getCurrentUserPrincipal()) {
$returnedProperties[200]['{DAV:}current-user-principal'] = new Sabre_DAVACL_Property_Principal(Sabre_DAVACL_Property_Principal::HREF, $url . '/');
} else {
$returnedProperties[200]['{DAV:}current-user-principal'] = new Sabre_DAVACL_Property_Principal(Sabre_DAVACL_Property_Principal::UNAUTHENTICATED);
}
}
if (false !== ($index = array_search('{DAV:}supported-privilege-set', $requestedProperties))) {
unset($requestedProperties[$index]);
$returnedProperties[200]['{DAV:}supported-privilege-set'] = new Sabre_DAVACL_Property_SupportedPrivilegeSet($this->getSupportedPrivilegeSet());
}
if (false !== ($index = array_search('{DAV:}current-user-privilege-set', $requestedProperties))) {
if (!$this->checkPrivileges($uri, '{DAV:}read-current-user-privilege-set', self::R_PARENT, false)) {
$returnedProperties[403]['{DAV:}current-user-privilege-set'] = null;
unset($requestedProperties[$index]);
} else {
$val = $this->getCurrentUserPrivilegeSet($node);
if (!is_null($val)) {
unset($requestedProperties[$index]);
$returnedProperties[200]['{DAV:}current-user-privilege-set'] = new Sabre_DAVACL_Property_CurrentUserPrivilegeSet($val);
}
}
}
/* The ACL property contains all the permissions */
if (false !== ($index = array_search('{DAV:}acl', $requestedProperties))) {
if (!$this->checkPrivileges($uri, '{DAV:}read-acl', self::R_PARENT, false)) {
unset($requestedProperties[$index]);
$returnedProperties[403]['{DAV:}acl'] = null;
} else {
$acl = $this->getACL($node);
if (!is_null($acl)) {
unset($requestedProperties[$index]);
$returnedProperties[200]['{DAV:}acl'] = new Sabre_DAVACL_Property_Acl($this->getACL($node));
}
}
}
}
