/**
* Checks if the submitted iCalendar data is in fact, valid.
*
* An exception is thrown if it's not.
*
* @param resource|string $data
* @param bool $modified Should be set to true, if this event handler
* changed &$data.
* @return void
*/
protected function validateVCard(&$data, &$modified)
{
// If it's a stream, we convert it to a string first.
if (is_resource($data)) {
$data = stream_get_contents($data);
}
$before = md5($data);
// Converting the data to unicode, if needed.
$data = DAV\StringUtil::ensureUTF8($data);
if (md5($data) !== $before) {
$modified = true;
}
try {
// If the data starts with a [, we can reasonably assume we're dealing
// with a jCal object.
if (substr($data, 0, 1) === '[') {
$vobj = VObject\Reader::readJson($data);
// Converting $data back to iCalendar, as that's what we
// technically support everywhere.
$data = $vobj->serialize();
$modified = true;
} else {
$vobj = VObject\Reader::read($data);
}
} catch (VObject\ParseException $e) {
throw new DAV\Exception\UnsupportedMediaType('This resource only supports valid vCard or jCard data. Parse error: ' . $e->getMessage());
}
if ($vobj->name !== 'VCARD') {
throw new DAV\Exception\UnsupportedMediaType('This collection can only support vcard objects.');
}
if (!isset($vobj->UID)) {
// No UID in vcards is invalid, but we'll just add it in anyway.
$vobj->add('UID', DAV\UUIDUtil::getUUID());
$data = $vobj->serialize();
$modified = true;
}
}
/**
* Checks if the submitted iCalendar data is in fact, valid.
*
* An exception is thrown if it's not.
*
* @param resource|string $data
* @param string $path
* @param bool $modified Should be set to true, if this event handler
* changed &$data.
* @param RequestInterface $request The http request.
* @param ResponseInterface $response The http response.
* @param bool $isNew Is the item a new one, or an update.
* @return void
*/
protected function validateICalendar(&$data, $path, &$modified, RequestInterface $request, ResponseInterface $response, $isNew)
{
// If it's a stream, we convert it to a string first.
if (is_resource($data)) {
$data = stream_get_contents($data);
}
$before = md5($data);
// Converting the data to unicode, if needed.
$data = DAV\StringUtil::ensureUTF8($data);
if ($before !== md5($data)) {
$modified = true;
}
try {
// If the data starts with a [, we can reasonably assume we're dealing
// with a jCal object.
if (substr($data, 0, 1) === '[') {
$vobj = VObject\Reader::readJson($data);
// Converting $data back to iCalendar, as that's what we
// technically support everywhere.
$data = $vobj->serialize();
$modified = true;
} else {
$vobj = VObject\Reader::read($data);
}
} catch (VObject\ParseException $e) {
throw new DAV\Exception\UnsupportedMediaType('This resource only supports valid iCalendar 2.0 data. Parse error: ' . $e->getMessage());
}
if ($vobj->name !== 'VCALENDAR') {
throw new DAV\Exception\UnsupportedMediaType('This collection can only support iCalendar objects.');
}
$sCCS = '{urn:ietf:params:xml:ns:caldav}supported-calendar-component-set';
// Get the Supported Components for the target calendar
list($parentPath) = Uri\split($path);
$calendarProperties = $this->server->getProperties($parentPath, [$sCCS]);
if (isset($calendarProperties[$sCCS])) {
$supportedComponents = $calendarProperties[$sCCS]->getValue();
} else {
$supportedComponents = ['VJOURNAL', 'VTODO', 'VEVENT'];
}
$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 = $component->name;
if (!in_array($foundType, $supportedComponents)) {
throw new Exception\InvalidComponentType('This calendar only supports ' . implode(', ', $supportedComponents) . '. We found a ' . $foundType);
}
if (!isset($component->UID)) {
throw new DAV\Exception\BadRequest('Every ' . $component->name . ' component must have an UID');
}
$foundUID = (string) $component->UID;
} else {
if ($foundType !== $component->name) {
throw new 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 DAV\Exception\BadRequest('Every ' . $component->name . ' in this object must have identical UIDs');
}
}
break;
default:
throw new DAV\Exception\BadRequest('You are not allowed to create components of type: ' . $component->name . ' here');
}
}
if (!$foundType) {
throw new DAV\Exception\BadRequest('iCalendar object must contain at least 1 of VEVENT, VTODO or VJOURNAL');
}
// We use an extra variable to allow event handles to tell us wether
// the object was modified or not.
//
// This helps us determine if we need to re-serialize the object.
$subModified = false;
$this->server->emit('calendarObjectChange', [$request, $response, $vobj, $parentPath, &$subModified, $isNew]);
if ($subModified) {
// An event handler told us that it modified the object.
$data = $vobj->serialize();
// Using md5 to figure out if there was an *actual* change.
if (!$modified && $before !== md5($data)) {
$modified = true;
}
}
}
/**
* Checks if the submitted iCalendar data is in fact, valid.
*
* An exception is thrown if it's not.
*
* @param resource|string $data
* @param bool $modified Should be set to true, if this event handler
* changed &$data.
* @return void
*/
protected function validateVCard(&$data, &$modified)
{
// If it's a stream, we convert it to a string first.
if (is_resource($data)) {
$data = stream_get_contents($data);
}
$before = $data;
try {
// If the data starts with a [, we can reasonably assume we're dealing
// with a jCal object.
if (substr($data, 0, 1) === '[') {
$vobj = VObject\Reader::readJson($data);
// Converting $data back to iCalendar, as that's what we
// technically support everywhere.
$data = $vobj->serialize();
$modified = true;
} else {
$vobj = VObject\Reader::read($data);
}
} catch (VObject\ParseException $e) {
throw new DAV\Exception\UnsupportedMediaType('This resource only supports valid vCard or jCard data. Parse error: ' . $e->getMessage());
}
if ($vobj->name !== 'VCARD') {
throw new DAV\Exception\UnsupportedMediaType('This collection can only support vcard objects.');
}
$options = VObject\Node::PROFILE_CARDDAV;
$prefer = $this->server->getHTTPPrefer();
if ($prefer['handling'] !== 'strict') {
$options |= VObject\Node::REPAIR;
}
$messages = $vobj->validate($options);
$highestLevel = 0;
$warningMessage = null;
// $messages contains a list of problems with the vcard, along with
// their severity.
foreach ($messages as $message) {
if ($message['level'] > $highestLevel) {
// Recording the highest reported error level.
$highestLevel = $message['level'];
$warningMessage = $message['message'];
}
switch ($message['level']) {
case 1:
// Level 1 means that there was a problem, but it was repaired.
$modified = true;
break;
case 2:
// Level 2 means a warning, but not critical
break;
case 3:
// Level 3 means a critical error
throw new DAV\Exception\UnsupportedMediaType('Validation error in vCard: ' . $message['message']);
}
}
if ($warningMessage) {
$this->server->httpResponse->setHeader('X-Sabre-Ew-Gross', 'vCard validation warning: ' . $warningMessage);
// Re-serializing object.
$data = $vobj->serialize();
if (!$modified && strcmp($data, $before) !== 0) {
// This ensures that the system does not send an ETag back.
$modified = true;
}
}
// Destroy circular references to PHP will GC the object.
$vobj->destroy();
}
function testParseStreamArg()
{
$input = array("vcard", array(array("FN", new \StdClass(), 'text', "foo")));
$stream = fopen('php://memory', 'r+');
fwrite($stream, json_encode($input));
rewind($stream);
$result = VObject\Reader::readJson($stream, 0);
$this->assertEquals('foo', $result->FN->getValue());
}
/**
* Checks if the submitted iCalendar data is in fact, valid.
*
* An exception is thrown if it's not.
*
* @param resource|string $data
* @param string $path
* @param bool $modified Should be set to true, if this event handler
* changed &$data.
* @param RequestInterface $request The http request.
* @param ResponseInterface $response The http response.
* @param bool $isNew Is the item a new one, or an update.
* @return void
*/
protected function validateICalendar(&$data, $path, &$modified, RequestInterface $request, ResponseInterface $response, $isNew)
{
// If it's a stream, we convert it to a string first.
if (is_resource($data)) {
$data = stream_get_contents($data);
}
$before = $data;
try {
// If the data starts with a [, we can reasonably assume we're dealing
// with a jCal object.
if (substr($data, 0, 1) === '[') {
$vobj = VObject\Reader::readJson($data);
// Converting $data back to iCalendar, as that's what we
// technically support everywhere.
$data = $vobj->serialize();
$modified = true;
} else {
$vobj = VObject\Reader::read($data);
}
} catch (VObject\ParseException $e) {
throw new DAV\Exception\UnsupportedMediaType('This resource only supports valid iCalendar 2.0 data. Parse error: ' . $e->getMessage());
}
if ($vobj->name !== 'VCALENDAR') {
throw new DAV\Exception\UnsupportedMediaType('This collection can only support iCalendar objects.');
}
$sCCS = '{urn:ietf:params:xml:ns:caldav}supported-calendar-component-set';
// Get the Supported Components for the target calendar
list($parentPath) = Uri\split($path);
$calendarProperties = $this->server->getProperties($parentPath, [$sCCS]);
if (isset($calendarProperties[$sCCS])) {
$supportedComponents = $calendarProperties[$sCCS]->getValue();
} else {
$supportedComponents = ['VJOURNAL', 'VTODO', 'VEVENT'];
}
$foundType = null;
foreach ($vobj->getComponents() as $component) {
switch ($component->name) {
case 'VTIMEZONE':
continue 2;
case 'VEVENT':
case 'VTODO':
case 'VJOURNAL':
$foundType = $component->name;
break;
}
}
if (!$foundType || !in_array($foundType, $supportedComponents)) {
throw new Exception\InvalidComponentType('iCalendar objects must at least have a component of type ' . implode(', ', $supportedComponents));
}
$options = VObject\Node::PROFILE_CALDAV;
$prefer = $this->server->getHTTPPrefer();
if ($prefer['handling'] !== 'strict') {
$options |= VObject\Node::REPAIR;
}
$messages = $vobj->validate($options);
$highestLevel = 0;
$warningMessage = null;
// $messages contains a list of problems with the vcard, along with
// their severity.
foreach ($messages as $message) {
if ($message['level'] > $highestLevel) {
// Recording the highest reported error level.
$highestLevel = $message['level'];
$warningMessage = $message['message'];
}
switch ($message['level']) {
case 1:
// Level 1 means that there was a problem, but it was repaired.
$modified = true;
break;
case 2:
// Level 2 means a warning, but not critical
break;
case 3:
// Level 3 means a critical error
throw new DAV\Exception\UnsupportedMediaType('Validation error in iCalendar: ' . $message['message']);
}
}
if ($warningMessage) {
$response->setHeader('X-Sabre-Ew-Gross', 'iCalendar validation warning: ' . $warningMessage);
}
// We use an extra variable to allow event handles to tell us wether
// the object was modified or not.
//
// This helps us determine if we need to re-serialize the object.
$subModified = false;
$this->server->emit('calendarObjectChange', [$request, $response, $vobj, $parentPath, &$subModified, $isNew]);
if ($modified || $subModified) {
// An event handler told us that it modified the object.
$data = $vobj->serialize();
// Using md5 to figure out if there was an *actual* change.
if (!$modified && strcmp($data, $before) !== 0) {
$modified = true;
}
}
// Destroy circular references so PHP will garbage collect the object.
$vobj->destroy();
}
