urlpreview.php

<?php
namespace Bitrix\Landing\Landing;
 
use \Bitrix\Landing\Landing;
use \Bitrix\Landing\Site;
use \Bitrix\Landing\Hook;
use \Bitrix\Landing\File;
use \Bitrix\Landing\Manager;
use \Bitrix\Main\Loader;
 
class UrlPreview
{
    public static function getPreview(int $landingId): array
    {
        static $cached = [];
 
        if (array_key_exists($landingId, $cached))
        {
            return $cached[$landingId];
        }
 
        $result = [];
 
        $res = Landing::getList([
            'select' => [
                'ID',
                'TITLE',
                'SITE_TYPE' => 'SITE.TYPE'
            ],
            'filter' => [
                'ID' => $landingId
            ]
        ]);
        if ($row = $res->fetch())
        {
            $landing = Landing::createInstance(0);
            $row['URL'] = $landing->getPublicUrl($landingId);
            $row['DESCRIPTION'] = '';
            $row['PICTURE'] = '';
 
            // gets title and description with hight priority
            $hookData = Hook::getForLandingRow($row['ID']);
            if (isset($hookData['METAOG']['TITLE']))
            {
                $row['TITLE'] = $hookData['METAOG']['TITLE'];
                if (isset($hookData['METAOG']['DESCRIPTION']))
                {
                    $row['DESCRIPTION'] = $hookData['METAOG']['DESCRIPTION'];
                }
            }
            else if (isset($hookData['METAMAIN']['TITLE']))
            {
                $row['TITLE'] = $hookData['METAMAIN']['TITLE'];
                if (isset($hookData['METAMAIN']['DESCRIPTION']))
                {
                    $row['DESCRIPTION'] = $hookData['METAMAIN']['DESCRIPTION'];
                }
            }
            if (isset($hookData['METAOG']['IMAGE']))
            {
                $row['PICTURE'] = $hookData['METAOG']['IMAGE'];
                if (intval($row['PICTURE']) > 0)
                {
                    $row['PICTURE'] = File::getFilePath($row['PICTURE']);
                }
            }
 
            $result = $row;
        }
 
        $cached[$landingId] = $result;
 
        return $cached[$landingId];
    }
 
    public static function buildPreview(array $params): ?string
    {
        if (isset($params['scope']))
        {
            \Bitrix\Landing\Site\Type::setScope(
                $params['scope']
            );
        }
 
        if (!isset($params['URL']))
        {
            $params['URL'] = Manager::getPublicationPath() . $params['URL'];
        }
 
        $landingId = self::resolveLandingId($params['URL']);
        if ($landingId)
        {
            ob_start();
            Manager::getApplication()->includeComponent(
                'bitrix:landing.socialnetwork.preview',
                '',
                [
                    'LANDING_ID' => $landingId
                ]
            );
            return ob_get_clean();
        }
 
        return null;
    }
 
    public static function getImAttach(array $params)
    {
        if (!Loader::includeModule('im'))
        {
            return false;
        }
 
        if (isset($params['scope']))
        {
            \Bitrix\Landing\Site\Type::setScope(
                $params['scope']
            );
        }
 
        if (!isset($params['URL']))
        {
            $params['URL'] = Manager::getPublicationPath() . ($params['knowledgeCode'] ?? '');
        }
 
        $landingId = self::resolveLandingId($params['URL']);
 
        if ($landingId)
        {
            $preview = self::getPreview($landingId);
            if ($preview)
            {
                $attach = new \CIMMessageParamAttach(1, '#E30000');
                $attach->addLink([
                    'NAME' => $preview['TITLE'],
                    'DESC' => $preview['DESCRIPTION'],
                    'LINK' => $preview['URL'],
                    'PREVIEW' => $preview['PICTURE']
                ]);
                return $attach;
            }
        }
 
        return false;
    }
 
    public static function getImRich(array $params)
    {
        if (!Loader::includeModule('im'))
        {
            return false;
        }
 
        if (!class_exists('\Bitrix\Im\V2\Entity\Url\RichData'))
        {
            return false;
        }
 
        if (isset($params['scope']))
        {
            \Bitrix\Landing\Site\Type::setScope(
                $params['scope']
            );
        }
 
        if (!isset($params['URL']))
        {
            $params['URL'] = Manager::getPublicationPath() . ($params['knowledgeCode'] ?? '');
        }
 
        $landingId = self::resolveLandingId($params['URL']);
 
        if ($landingId)
        {
            $preview = self::getPreview($landingId);
            if ($preview)
            {
                $rich = new \Bitrix\Im\V2\Entity\Url\RichData();
                $rich
                    ->setName($preview['TITLE'])
                    ->setDescription($preview['DESCRIPTION'])
                    ->setLink($preview['URL'])
                    ->setPreviewUrl($preview['PICTURE'])
                    ->setType(\Bitrix\Im\V2\Entity\Url\RichData::LANDING_TYPE)
                ;
                return $rich;
            }
        }
 
        return false;
    }
 
    public static function checkUserReadAccess(array $params, int $userId): bool
    {
        if (isset($params['scope']))
        {
            \Bitrix\Landing\Site\Type::setScope(
                $params['scope']
            );
        }
 
        if (!isset($params['URL']))
        {
            $params['URL'] = Manager::getPublicationPath() . ($params['knowledgeCode'] ?? '');
        }
 
        return self::resolveLandingId($params['URL']) !== null;
    }
 
    protected static function resolveSiteId(string $landingPath): ?int
    {
        $publicPath = Manager::getPublicationPath();
 
        if ($landingPath[0] !== '/')
        {
            $urlParts = parse_url($landingPath);
            $landingPath = $urlParts['path'] ?? '';
        }
 
        if (mb_strpos($landingPath, $publicPath) === 0)
        {
            $landingPath = mb_substr($landingPath, mb_strlen($publicPath));
            $pathChunks = explode('/', $landingPath);
            if (!empty($pathChunks[0]))
            {
                $res = Site::getList([
                    'select' => [
                        'ID'
                    ],
                    'filter' => [
                        '=CODE' => '/' . $pathChunks[0] . '/'
                    ]
                ]);
                if ($row = $res->fetch())
                {
                    return $row['ID'];
                }
            }
        }
 
        return null;
    }
 
    public static function resolveLandingId(string $landingPath): ?int
    {
        $landingId = null;
 
        if ($landingPath[0] !== '/')
        {
            $urlParts = parse_url($landingPath);
            $landingPath = $urlParts['path'] ?? '';
        }
 
        if ($landingPath)
        {
            $siteId = self::resolveSiteId($landingPath);
            if ($siteId)
            {
                $landingId = Landing::resolveIdByPublicUrl($landingPath, $siteId);
            }
        }
 
        return $landingId;
    }
}