/home/edulekha/crm.edulekha.com/application/services/imap/ImapResource.php
<?php
namespace app\services\imap;
use Ddeboer\Imap\Exception\InvalidResourceException;
use Ddeboer\Imap\Exception\ReopenMailboxException;
use Ddeboer\Imap\ImapResourceInterface;
use Ddeboer\Imap\MailboxInterface;
class ImapResource implements ImapResourceInterface
{
/**
* @var resource
*/
private $resource;
private ?MailboxInterface $mailbox = null;
private static ?string $lastMailboxUsedCache = null;
/**
* Constructor.
*
* @param resource $resource
*/
public function __construct($resource, ?MailboxInterface $mailbox = null)
{
$this->resource = $resource;
$this->mailbox = $mailbox;
}
public function clearLastMailboxUsedCache(): void
{
self::$lastMailboxUsedCache = null;
}
/**
* If connection is not currently in this mailbox, switch it to this mailbox.
*/
private function initMailbox(): void
{
if (null === $this->mailbox || self::isMailboxOpen($this->mailbox, $this->resource)) {
return;
}
\set_error_handler(static function (): bool {
return true;
});
\imap_reopen($this->resource, $this->mailbox->getFullEncodedName());
\restore_error_handler();
if (self::isMailboxOpen($this->mailbox, $this->resource)) {
return;
}
throw new ReopenMailboxException(\sprintf('Cannot reopen mailbox "%s"', $this->mailbox->getName()));
}
/**
* Check whether the current mailbox is open.
*
* @param resource $resource
*/
private static function isMailboxOpen(MailboxInterface $mailbox, $resource): bool
{
$currentMailboxName = $mailbox->getFullEncodedName();
if ($currentMailboxName === self::$lastMailboxUsedCache) {
return true;
}
self::$lastMailboxUsedCache = null;
$check = \imap_check($resource);
$return = false !== $check && $check->Mailbox === $currentMailboxName;
if (true === $return) {
self::$lastMailboxUsedCache = $currentMailboxName;
}
return $return;
}
public function getStream()
{
if (
! $this->resource instanceof \IMAP\Connection
&& (false === \is_resource($this->resource) || 'imap' !== \get_resource_type($this->resource))
) {
throw new InvalidResourceException('Supplied resource is not a valid imap resource');
}
$this->initMailbox();
return $this->resource;
}
}