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Invite.php
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<?php
namespace Sabre\CalDAV\Xml\Property;
use Sabre\Xml\Element;
use Sabre\Xml\Reader;
use Sabre\Xml\Writer;
use Sabre\CalDAV\Plugin;
use Sabre\CalDAV\SharingPlugin;
/**
* Invite property
*
* This property encodes the 'invite' property, as defined by
* the 'caldav-sharing-02' spec, in the http://calendarserver.org/ns/
* namespace.
*
* @see https://trac.calendarserver.org/browser/CalendarServer/trunk/doc/Extensions/caldav-sharing-02.txt
* @copyright Copyright (C) 2007-2015 fruux GmbH (https://fruux.com/).
* @author Evert Pot (http://evertpot.com/)
* @license http://sabre.io/license/ Modified BSD License
*/
class Invite implements Element {
/**
* The list of users a calendar has been shared to.
*
* @var array
*/
protected $users;
/**
* The organizer contains information about the person who shared the
* object.
*
* @var array
*/
protected $organizer;
/**
* Creates the property.
*
* Users is an array. Each element of the array has the following
* properties:
*
* * href - Often a mailto: address
* * commonName - Optional, for example a first and lastname for a user.
* * status - One of the SharingPlugin::STATUS_* constants.
* * readOnly - true or false
* * summary - Optional, description of the share
*
* The organizer key is optional to specify. It's only useful when a
* 'sharee' requests the sharing information.
*
* The organizer may have the following properties:
* * href - Often a mailto: address.
* * commonName - Optional human-readable name.
* * firstName - Optional first name.
* * lastName - Optional last name.
*
* If you wonder why these two structures are so different, I guess a
* valid answer is that the current spec is still a draft.
*
* @param array $users
*/
function __construct(array $users, array $organizer = null) {
$this->users = $users;
$this->organizer = $organizer;
}
/**
* Returns the list of users, as it was passed to the constructor.
*
* @return array
*/
function getValue() {
return $this->users;
}
/**
* The xmlSerialize metod is called during xml writing.
*
* Use the $writer argument to write its own xml serialization.
*
* An important note: do _not_ create a parent element. Any element
* implementing XmlSerializble should only ever write what's considered
* its 'inner xml'.
*
* The parent of the current element is responsible for writing a
* containing element.
*
* This allows serializers to be re-used for different element names.
*
* If you are opening new elements, you must also close them again.
*
* @param Writer $writer
* @return void
*/
function xmlSerialize(Writer $writer) {
$cs = '{' . Plugin::NS_CALENDARSERVER . '}';
if (!is_null($this->organizer)) {
$writer->startElement($cs . 'organizer');
$writer->writeElement('{DAV:}href', $this->organizer['href']);
if (isset($this->organizer['commonName']) && $this->organizer['commonName']) {
$writer->writeElement($cs . 'common-name', $this->organizer['commonName']);
}
if (isset($this->organizer['firstName']) && $this->organizer['firstName']) {
$writer->writeElement($cs . 'first-name', $this->organizer['firstName']);
}
if (isset($this->organizer['lastName']) && $this->organizer['lastName']) {
$writer->writeElement($cs . 'last-name', $this->organizer['lastName']);
}
$writer->endElement(); // organizer
}
foreach ($this->users as $user) {
$writer->startElement($cs . 'user');
$writer->writeElement('{DAV:}href', $user['href']);
if (isset($user['commonName']) && $user['commonName']) {
$writer->writeElement($cs . 'common-name', $user['commonName']);
}
switch ($user['status']) {
case SharingPlugin::STATUS_ACCEPTED :
$writer->writeElement($cs . 'invite-accepted');
break;
case SharingPlugin::STATUS_DECLINED :
$writer->writeElement($cs . 'invite-declined');
break;
case SharingPlugin::STATUS_NORESPONSE :
$writer->writeElement($cs . 'invite-noresponse');
break;
case SharingPlugin::STATUS_INVALID :
$writer->writeElement($cs . 'invite-invalid');
break;
}
$writer->startElement($cs . 'access');
if ($user['readOnly']) {
$writer->writeElement($cs . 'read');
} else {
$writer->writeElement($cs . 'read-write');
}
$writer->endElement(); // access
if (isset($user['summary']) && $user['summary']) {
$writer->writeElement($cs . 'summary', $user['summary']);
}
$writer->endElement(); //user
}
}
/**
* The deserialize method is called during xml parsing.
*
* This method is called statictly, this is because in theory this method
* may be used as a type of constructor, or factory method.
*
* Often you want to return an instance of the current class, but you are
* free to return other data as well.
*
* You are responsible for advancing the reader to the next element. Not
* doing anything will result in a never-ending loop.
*
* If you just want to skip parsing for this element altogether, you can
* just call $reader->next();
*
* $reader->parseInnerTree() will parse the entire sub-tree, and advance to
* the next element.
*
* @param Reader $reader
* @return mixed
*/
static function xmlDeserialize(Reader $reader) {
$cs = '{' . Plugin::NS_CALENDARSERVER . '}';
$users = [];
foreach ($reader->parseInnerTree() as $elem) {
if ($elem['name'] !== $cs . 'user')
continue;
$user = [
'href' => null,
'commonName' => null,
'readOnly' => null,
'summary' => null,
'status' => null,
];
foreach ($elem['value'] as $userElem) {
switch ($userElem['name']) {
case $cs . 'invite-accepted' :
$user['status'] = SharingPlugin::STATUS_ACCEPTED;
break;
case $cs . 'invite-declined' :
$user['status'] = SharingPlugin::STATUS_DECLINED;
break;
case $cs . 'invite-noresponse' :
$user['status'] = SharingPlugin::STATUS_NORESPONSE;
break;
case $cs . 'invite-invalid' :
$user['status'] = SharingPlugin::STATUS_INVALID;
break;
case '{DAV:}href' :
$user['href'] = $userElem['value'];
break;
case $cs . 'common-name' :
$user['commonName'] = $userElem['value'];
break;
case $cs . 'access' :
foreach ($userElem['value'] as $accessHref) {
if ($accessHref['name'] === $cs . 'read') {
$user['readOnly'] = true;
}
}
break;
case $cs . 'summary' :
$user['summary'] = $userElem['value'];
break;
}
}
if (!$user['status']) {
throw new \InvalidArgumentException('Every user must have one of cs:invite-accepted, cs:invite-declined, cs:invite-noresponse or cs:invite-invalid');
}
$users[] = $user;
}
return new self($users);
}
}

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