publicevent.php

См. документацию.

<?php
 
namespace Bitrix\Calendar\Public;
 
use Bitrix\Calendar\Core\Event\Event;
use Bitrix\Calendar\ICal\IcsManager;
use Bitrix\Calendar\Util;
use Bitrix\Main\Type\Date;
 
class PublicEvent
{
    public const PUBLIC_EVENT_PATH = 'pub/calendar-event';
 
    public const ACTION = 'action';
    public const ACCEPT = 'accept';
    public const DECLINE = 'decline';
    public const ICS = 'ics';
    public const ACTION_ACCEPT = '?'.self::ACTION.'='.self::ACCEPT;
    public const ACTION_DECLINE = '?'.self::ACTION.'='.self::DECLINE;
    public const ACTION_ICS = '?'.self::ACTION.'='.self::ICS;
 
    public static function isHashValid(Event $event, ?string $hash): bool
    {
        $eventId = $event->getId();
        $userId = $event->getOwner()?->getId();
        $dateCreate = $event->getDateCreate();
 
        if ($userId === null || $dateCreate === null)
        {
            return false;
        }
 
        $dateCreateTimestamp = (int)Util::getTimestamp($dateCreate->toString());
 
        return self::getHashForPubEvent($eventId, $userId, $dateCreateTimestamp) === $hash;
    }
 
    public static function getDetailLinkFromEvent(Event $event): ?string
    {
        $eventId = $event->getId();
        $ownerId = $event->getOwner()?->getId();
        $dateCreate = $event->getDateCreate();
 
        if ($ownerId === null || $dateCreate === null)
        {
            return null;
        }
 
        $dateCreateTimestamp = (int)Util::getTimestamp(
            $dateCreate->format(Date::convertFormatToPhp(FORMAT_DATETIME)),
        );
 
        return self::getDetailLink($eventId, $ownerId, $dateCreateTimestamp);
    }
 
    public static function getDetailLink(int $eventId, int $userId, int $dateCreateTimestamp): string
    {
        $serverPath = \CCalendar::GetServerPath();
        $publicPath = self::PUBLIC_EVENT_PATH;
 
        return "$serverPath/$publicPath/$eventId/".self::getHashForPubEvent($eventId, $userId, $dateCreateTimestamp)."/";
    }
 
    protected static function getHashForPubEvent(int $eventId, int $userId, int $dateCreateTimestamp): string
    {
        return md5($eventId.self::getSaltForPubLink().$dateCreateTimestamp.$userId);
    }
 
    protected static function getSaltForPubLink(): string
    {
        $salt = \COption::GetOptionString('calendar', 'pub_event_salt', '');
 
        if (empty($salt))
        {
            $salt = uniqid('', true);
            \COption::SetOptionString('calendar', 'pub_event_salt', $salt);
        }
 
        return $salt;
    }
 
    public static function prepareEventDescriptionForIcs(Event $event): string
    {
        if ($event->getMeetingDescription()?->getHideGuests())
        {
            $event->setAttendeesCollection(null);
        }
 
        $detailLink = self::getDetailLinkFromEvent($event);
        $description = IcsManager::getInstance()->prepareEventDescription($event, [
            'eventUrl' => $detailLink,
        ]);
 
        return str_replace("\\n", "\n", $description);
    }
}