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<?php
namespace OCA\OJSXC\StanzaHandlers;
use OCA\OJSXC\Db\IQRoster;
use OCA\OJSXC\Db\IQNotImplemented;
use OCA\OJSXC\Db\Stanza;
use OCA\OJSXC\Exceptions\TerminateException;
use OCA\OJSXC\IUserProvider;
use OCP\IConfig;
use OCP\IUserManager;
/**
* Class IQ
*
* @package OCA\OJSXC\StanzaHandlers
*/
class IQ extends StanzaHandler
{
/**
* @var IUserManager
*/
private $userManager;
/**
* @var IConfig
*/
private $config;
/**
* @var IUserProvider
*/
private $userProvider;
/**
* IQ constructor.
*
* @param string $userId
* @param string $host
* @param IUserManager $userManager
* @param IConfig $config
* @param IUserProvider $userProvider
*/
public function __construct($userId, $host, IUserManager $userManager, IConfig $config, IUserProvider $userProvider)
{
parent::__construct($userId, $host);
$this->userManager = $userManager;
$this->config = $config;
$this->userProvider = $userProvider;
}
/**
* @param array $stanza
* @return Stanza|null
* @throws TerminateException
*/
public function handle(array $stanza)
{
$this->to = $this->getAttribute($stanza, 'to');
// if in debug mode we show the own username in the roster for testing
$debugMode = $this->config->getSystemValue("debug");
if ($stanza['value'][0]['name'] === '{http://jabber.org/protocol/disco#items}query' || $stanza['value'][0]['name'] === '{http://jabber.org/protocol/disco#info}query') {
// the disco queries are currently not implemented but these are the first stanzas send to the server so
// they are ideal to terminate the connection if a user is excluded from chatting.
if ($this->userProvider->isUserExcluded($this->userId)) {
throw new TerminateException();
}
} elseif ($stanza['value'][0]['name'] === '{jabber:iq:roster}query') {
$id = $stanza['attributes']['id'];
$iqRoster = new IQRoster();
$iqRoster->setType('result');
$iqRoster->setTo($this->userId);
$iqRoster->setQid($id);
foreach ($this->userProvider->getAllUsers() as $user) {
if ($debugMode || $user->getUID() !== $this->userId) {
$iqRoster->addItem($user->getUID() . '@' . $this->host, $user->getFullName());
}
}
return $iqRoster;
} elseif ($stanza['value'][0]['name'] === '{http://jabber.org/protocol/pubsub}pubsub') {
$id = $stanza['attributes']['id'];
$from = \array_key_exists('from', $stanza['attributes']) ? $stanza['attributes']['from'] : $this->userId;
$iq = new IQNotImplemented();
$iq->setTo($from);
$iq->setQid($id);
return $iq;
}
}
}
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