/**
* PropFind
*
* 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 DAV\PropFind $propFind
* @param DAV\INode $node
* @return void
*/
function propFind(DAV\PropFind $propFind, DAV\INode $node)
{
$ns = '{' . self::NS_CALDAV . '}';
if ($node instanceof ICalendarObjectContainer) {
$propFind->handle($ns . 'max-resource-size', $this->maxResourceSize);
$propFind->handle($ns . 'supported-calendar-data', function () {
return new Xml\Property\SupportedCalendarData();
});
$propFind->handle($ns . 'supported-collation-set', function () {
return new Xml\Property\SupportedCollationSet();
});
}
if ($node instanceof DAVACL\IPrincipal) {
$principalUrl = $node->getPrincipalUrl();
$propFind->handle('{' . self::NS_CALDAV . '}calendar-home-set', function () use($principalUrl) {
$calendarHomePath = $this->getCalendarHomeForPrincipal($principalUrl) . '/';
return new Href($calendarHomePath);
});
// The calendar-user-address-set property is basically mapped to
// the {DAV:}alternate-URI-set property.
$propFind->handle('{' . self::NS_CALDAV . '}calendar-user-address-set', function () use($node) {
$addresses = $node->getAlternateUriSet();
$addresses[] = $this->server->getBaseUri() . $node->getPrincipalUrl() . '/';
return new Href($addresses, false);
});
// For some reason somebody thought it was a good idea to add
// another one of these properties. We're supporting it too.
$propFind->handle('{' . self::NS_CALENDARSERVER . '}email-address-set', function () use($node) {
$addresses = $node->getAlternateUriSet();
$emails = [];
foreach ($addresses as $address) {
if (substr($address, 0, 7) === 'mailto:') {
$emails[] = substr($address, 7);
}
}
return new Xml\Property\EmailAddressSet($emails);
});
// 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';
$propWrite = '{' . self::NS_CALENDARSERVER . '}calendar-proxy-write-for';
if ($propFind->getStatus($propRead) === 404 || $propFind->getStatus($propWrite) === 404) {
$aclPlugin = $this->server->getPlugin('acl');
$membership = $aclPlugin->getPrincipalMembership($propFind->getPath());
$readList = [];
$writeList = [];
foreach ($membership as $group) {
$groupNode = $this->server->tree->getNodeForPath($group);
$listItem = Uri\split($group)[0] . '/';
// 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 Principal\IProxyRead) {
$readList[] = $listItem;
}
if ($groupNode instanceof Principal\IProxyWrite) {
$writeList[] = $listItem;
}
}
$propFind->set($propRead, new Href($readList));
$propFind->set($propWrite, new Href($writeList));
}
}
// instanceof IPrincipal
if ($node instanceof 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.
$propFind->handle('{' . self::NS_CALDAV . '}calendar-data', function () use($node) {
$val = $node->get();
if (is_resource($val)) {
$val = stream_get_contents($val);
}
// Taking out \r to not screw up the xml output
return str_replace("\r", "", $val);
});
}
}
/**
* Triggered after properties have been fetched.
*
* @param PropFind $propFind
* @param INode $node
* @return void
*/
function propFind(PropFind $propFind, INode $node)
{
// There's a bunch of properties that must appear as a self-closing
// xml-element. This event handler ensures that this will be the case.
$props = ['{http://calendarserver.org/ns/}subscribed-strip-alarms', '{http://calendarserver.org/ns/}subscribed-strip-attachments', '{http://calendarserver.org/ns/}subscribed-strip-todos'];
foreach ($props as $prop) {
if ($propFind->getStatus($prop) === 200) {
$propFind->set($prop, '', 200);
}
}
}
/**
* Adds tags and favorites properties to the response,
* if requested.
*
* @param PropFind $propFind
* @param \Sabre\DAV\INode $node
* @return void
*/
public function handleGetProperties(PropFind $propFind, \Sabre\DAV\INode $node)
{
if (!$node instanceof \OCA\DAV\Connector\Sabre\Node) {
return;
}
// need prefetch ?
if ($node instanceof \OCA\DAV\Connector\Sabre\Directory && $propFind->getDepth() !== 0 && (!is_null($propFind->getStatus(self::TAGS_PROPERTYNAME)) || !is_null($propFind->getStatus(self::FAVORITE_PROPERTYNAME)))) {
// note: pre-fetching only supported for depth <= 1
$folderContent = $node->getChildren();
$fileIds[] = (int) $node->getId();
foreach ($folderContent as $info) {
$fileIds[] = (int) $info->getId();
}
$tags = $this->getTagger()->getTagsForObjects($fileIds);
if ($tags === false) {
// the tags API returns false on error...
$tags = array();
}
$this->cachedTags = $this->cachedTags + $tags;
$emptyFileIds = array_diff($fileIds, array_keys($tags));
// also cache the ones that were not found
foreach ($emptyFileIds as $fileId) {
$this->cachedTags[$fileId] = [];
}
}
$tags = null;
$isFav = null;
$propFind->handle(self::TAGS_PROPERTYNAME, function () use($tags, &$isFav, $node) {
list($tags, $isFav) = $this->getTagsAndFav($node->getId());
return new TagList($tags);
});
$propFind->handle(self::FAVORITE_PROPERTYNAME, function () use($isFav, $node) {
if (is_null($isFav)) {
list(, $isFav) = $this->getTagsAndFav($node->getId());
}
return $isFav;
});
}
/**
* Adds shares to propfind response
*
* @param PropFind $propFind propfind object
* @param \Sabre\DAV\INode $sabreNode sabre node
*/
public function handleGetProperties(PropFind $propFind, \Sabre\DAV\INode $sabreNode)
{
if (!$sabreNode instanceof \OCA\DAV\Connector\Sabre\Node) {
return;
}
// need prefetch ?
if ($sabreNode instanceof \OCA\DAV\Connector\Sabre\Directory && $propFind->getDepth() !== 0 && !is_null($propFind->getStatus(self::SHARETYPES_PROPERTYNAME))) {
$folderNode = $this->userFolder->get($propFind->getPath());
$children = $folderNode->getDirectoryListing();
$this->cachedShareTypes[$folderNode->getId()] = $this->getShareTypes($folderNode);
foreach ($children as $childNode) {
$this->cachedShareTypes[$childNode->getId()] = $this->getShareTypes($childNode);
}
}
$propFind->handle(self::SHARETYPES_PROPERTYNAME, function () use($sabreNode) {
if (isset($this->cachedShareTypes[$sabreNode->getId()])) {
$shareTypes = $this->cachedShareTypes[$sabreNode->getId()];
} else {
$node = $this->userFolder->get($sabreNode->getPath());
$shareTypes = $this->getShareTypes($node);
}
return new ShareTypeList($shareTypes);
});
}
