schema json+ld

component_epilog.php

<?
if(!empty($arResult['JSON'])){
    $jsonld=str_replace("'", "\"", CUtil::PhpToJSObject($arResult['JSON']));
    \Bitrix\Main\Page\Asset::getInstance()->addString('<script class="section_microdata" type="application/ld+json">'.$jsonld.'</script>');
}

event.php

<?
\Bitrix\Main\EventManager::getInstance()->addEventHandler("main", "OnEndBufferContent", "addImageObject");
function addImageObject (&$content) {
    $request = \Bitrix\Main\Context::getCurrent()->getRequest();
    if($request->isAdminSection())
    {
        return true;
    }

    $arFindImagesWithoutSchema = array();

    global $arImages;
    $arImages = array();
    $content = preg_replace_callback('/<img[\s]*([^>]*)[\s]*>/mi'.BX_UTF_PCRE_MODIFIER, function($matches){
        global $arImages;
        $arImages[] = $matches[0];
        return $matches[0];
    }, $content);

    if(count($arImages)>0){

        /*$res = Bitrix\Main\SiteDomainTable::getList(array(
            'filter'=>array('LID'=>SITE_ID),
            "select"=>array('*'),
        ));*/

        $arOkHost = array();
        $res = Bitrix\Main\SiteTable::getList(array(
            'filter'=>array('LID'=>SITE_ID),
            "select"=>array('*',"DOMAIN"=>'DOMAINS.DOMAIN'),
            'data_doubling' => true,
            'runtime'=>array(
                'DOMAINS' => [
                    'data_type' => 'Bitrix\Main\SiteDomainTable',
                    'reference' => [
                        '=this.LID' => 'ref.LID',
                    ],
                ],
            ),
            'cache' => array( // Кеш запроса. Сброс можно сделать методом \Bitrix\Iblock\ElementTable::getEntity()->cleanCache();
                'ttl' => 3600, // Время жизни кеша
                'cache_joins' => true // Кешировать ли выборки с JOIN
            ),
        ));
        while($ar = $res->fetch()){
            $arOkHost[] = $ar['DOMAIN'];
        }

        $arResult = getAttributesFromImgHtml(implode(" ",$arImages));
        foreach($arResult as $imageArray){
            $arUrl =  parse_url($imageArray['src']);
            $okUrl = false;
            if(empty($arUrl['host'])){
                $okUrl = true;
            }elseif(in_array($arUrl['host'],$arOkHost)){
                $okUrl = true;
            }

            if($okUrl) {

                $arSearch = array();
                $arSearchUrls = array();
                if (empty($arUrl['host'])) {
                    $arSearchUrls[] = $imageArray['src'];
                    foreach ($arOkHost as $domain) {
                        $arSearchUrls[] = "http://" . $domain . $imageArray['src'];
                        $arSearchUrls[] = "https://" . $domain . $imageArray['src'];
                    }
                } else {
                    $arSearchUrls[] = $imageArray['src'];
                }

                foreach ($arSearchUrls as $searchUrl) {
                    $arSearch[] = '"contentUrl":"' . $searchUrl . '"';
                    $arSearch[] = '"image":"' . $searchUrl . '"';
                    $arSearch[] = 'content="' . $searchUrl . '"';
                }


                $find = false;
                foreach($arSearch as $search_string){
                    if(stripos($content,$search_string) !== false){
                        $find = true;
                        break;
                    }
                }
                if(!$find){
                    $arFindImagesWithoutSchema[] = $imageArray;
                }

            }
        }
    }

    if(count($arFindImagesWithoutSchema)>0){
        $arListArray  = allImagesItemList($arFindImagesWithoutSchema);
        $jsonld=str_replace("'", "\"", CUtil::PhpToJSObject($arListArray));
        $string = '<script type="application/ld+json" class="all_page_images">'.$jsonld.'</script>';
        $content = preg_replace('/(<\/[\s]*head[\s]*>)/mi'.BX_UTF_PCRE_MODIFIER, $string.' ${0}', $content);
    }
}

func.php

<?
if(!function_exists('removeDomain')) {
    function removeDomain($string)
    {
        $arUrl = parse_url($string);
        unset($arUrl['scheme'], $arUrl['host'], $arUrl['port'], $arUrl['user'], $arUrl['pass']);
        $url = $arUrl['path'];
        if (!empty($arUrl['query'])) {
            $url .= "?" . $arUrl['query'];
        }
        if (!empty($arUrl['fragment'])) {
            $url .= "#" . $arUrl['fragment'];
        }
        return $url;
    }
}


function getMinPrice($arResult)
{
    if (isset($arResult['MIN_PRICE']) && !empty($arResult['MIN_PRICE'])) {

        if (
            isset($arResult['MIN_PRICE']['DISCOUNT_VALUE'])
            && !empty($arResult['MIN_PRICE']['DISCOUNT_VALUE'])
        ) {

            $ret_ar = array(
                "PRICE" => $arResult['MIN_PRICE']['DISCOUNT_VALUE'],
                "PRINT_PRICE" => $arResult['MIN_PRICE']['PRINT_DISCOUNT_VALUE'],
                "CURRENCY" => $arResult['MIN_PRICE']['CURRENCY'],
            );

        } else {

            $ret_ar = array(
                "PRICE" => $arResult['MIN_PRICE']['PRICE'],
                "PRINT_PRICE" => $arResult['MIN_PRICE']['PRINT_PRICE'],
                "CURRENCY" => $arResult['MIN_PRICE']['CURRENCY'],
            );
        }

        return $ret_ar;

    } elseif (is_array($arResult['PRICES']) && count($arResult['PRICES']) > 0) {

        $min_key = false;
        $min_value = null;

        foreach ($arResult['PRICES'] as $price_key => $price) {

            if ($price['DISCOUNT_VALUE'] < $min_value
                || is_null($min_value)
            ) {

                $min_value = $price['DISCOUNT_VALUE'];
                $min_key = $price_key;
            }
        }

        $ret_value = $arResult['PRICES'][$min_key]['DISCOUNT_VALUE'];

        $ret_ar = array(
            "PRICE" => $arResult['PRICES'][$min_key]['DISCOUNT_VALUE'],
            "PRINT_PRICE" => $arResult['PRICES'][$min_key]['PRINT_DISCOUNT_VALUE'],
            "CURRENCY" => $arResult['PRICES'][$min_key]['CURRENCY'],
        );

        return $ret_ar;

    } elseif (is_array($arResult['PRICE_MATRIX']) && count($arResult['PRICE_MATRIX']) > 0) {

        $min_key = false;
        $min_key1 = false;
        $min_value = null;
        $DISCOUNT_PRICE_KEY = 'DISCOUNT_VALUE';


        foreach ($arResult['PRICE_MATRIX']['MATRIX'] as $price_id => $arPriceMatrix) {

            foreach ($arPriceMatrix as $price_key => $price) {

                if(array_key_exists('DISCOUNT_PRICE',$price)){
                    $DISCOUNT_PRICE_KEY = 'DISCOUNT_PRICE';
                }
                if(empty($price['PRICE'])){
                    continue;
                }

                if (
                    $price[$DISCOUNT_PRICE_KEY] < $min_value
                    || is_null($min_value)
                ) {
                    $min_value = $price[$DISCOUNT_PRICE_KEY];
                    $min_key = $price_key;
                    $min_key1 = $price_id;
                }
            }
        }

        \CModule::IncludeModule('currency');

        $ret_ar = array();

        if(!empty($min_key1)){
            $ret_ar['PRICE'] = $arResult['PRICE_MATRIX']['MATRIX'][$min_key1][$min_key][$DISCOUNT_PRICE_KEY];
            $ret_ar['PRINT_PRICE'] = CCurrencyLang::CurrencyFormat(
                $arResult['PRICE_MATRIX']['MATRIX'][$min_key1][$min_key][$DISCOUNT_PRICE_KEY],
                $arResult['PRICE_MATRIX']['MATRIX'][$min_key1][$min_key]['CURRENCY'], false
            );
            $ret_ar['CURRENCY'] = $arResult['PRICE_MATRIX']['MATRIX'][$min_key1][$min_key]['CURRENCY'];
        }

        return $ret_ar;

    }

    return false;
}


function AddProductItemMicrodata(&$arResult){
    //ld+json

    $imgPath = '';
    //$MORE_PHOTO = "MORE_PHOTO";
    $MORE_PHOTO = "DOP_PHOTO";
    if (is_array($arResult['PREVIEW_PICTURE']))
    {
        $imgPath = $arResult['PREVIEW_PICTURE']['SRC'];
    }elseif (is_array($arResult['DETAIL_PICTURE']))
    {
        $imgPath = $arResult['DETAIL_PICTURE']['SRC'];
    } elseif (is_array($arResult['MORE_PHOTO']) && is_array($arResult['MORE_PHOTO'][0]))
    {
        $imgPath = $arResult['MORE_PHOTO'][0]['SRC'];
    }

    $arPhoto = array();



    $arProtocol = CMain::IsHTTPS() ? "https://" : "http://";
    $serverName = SITE_SERVER_NAME;

    $detailPath = $arResult["DETAIL_PAGE_URL"];
    if (strpos($detailPath, ':') === false)
    {
        $detailPath = $arProtocol . $serverName . $detailPath;
    }


    if($imgPath){
        if (strpos($imgPath, ':') === false)
        {
            $imgPath = $arProtocol . $serverName . $imgPath;
        }
    }
    if($imgPath){
        $arPhoto[] = $imgPath;
        if(is_array($arResult['PROPERTIES'][$MORE_PHOTO]['VALUE'])) {
            foreach($arResult['PROPERTIES'][$MORE_PHOTO]['VALUE'] as $FILE_ID){
                $arFile = CFile::GetFileArray($FILE_ID);
                $pic =  \Bas\Pict::getResizeWebpSrc($arFile, 200, 200, true);
                if (strpos($pic, ':') === false)
                {
                    $pic = $arProtocol . $serverName . $pic;
                }
                $arPhoto[] = $pic;
            }
        }
    }
    $arPhotoMicro = array();
    foreach($arPhoto as $imgPath){
        $arPhotoMicro[] = array(
            "@type" => "ImageObject",
            "contentUrl"=> $imgPath,
        );
    }

    $microJs = array(
        "@type" => "Product",
        "@context" => "http://schema.org/",
        "name" => isset($arResult['IPROPERTY_VALUES']['ELEMENT_PAGE_TITLE'])
            ? $arResult['IPROPERTY_VALUES']['ELEMENT_PAGE_TITLE']
            : $arResult['NAME'],
        "image" => $arPhotoMicro,
        "url" => $detailPath,
        "description" => $arResult['PREVIEW_TEXT'],
    );

    if(!empty($arResult['PROPERTIES']['BRAND']['VALUE'])){
        $arData = _IBlockElementTemplateCache::getSimpleFromAll(
            $arResult['PROPERTIES']['BRAND']["VALUE"],
            $arResult['PROPERTIES']['BRAND']["LINK_IBLOCK_ID"],
            array(
                'filter'=>array("ACTIVE"=>"Y","ACTIVE_DATE"=>"Y"),
                //'select'=>array("PROPERTY_LINK")
            )
        );
        $name = $arData[$arResult['PROPERTIES']['BRAND']['VALUE']]['NAME'];
        if($name){
            $microJs['brand'] = $name;
        }
    }

    /*
    if(!empty($arResult['PROPERTIES']['ARTICUL']['VALUE'])){
        $name = $arResult['PROPERTIES']['ARTICUL']['VALUE'];
        if($name){
            $microJs['model'] = $name;
        }
    }*/


    $show_product = true;
    if (isset($arResult["OFFERS"]) && !empty($arResult["OFFERS"])) {
        $offerJson = array();

        foreach ($arResult["OFFERS"] as $arOffer) {

            $AR_PRICE = getMinPrice($arOffer);

            if ($AR_PRICE['PRICE'] > 0) {
                $detailPath = $arOffer["DETAIL_PAGE_URL"];
                if (strpos($detailPath, ':') === false) {
                    $detailPath = $arProtocol . $serverName . $detailPath;
                }


                $avail = "";
                if ($arOffer["CAN_BUY"]) {
                    $avail = "https://schema.org/InStock";


                    $isAvail = true;
                    $isOnRoad = false;
                    $isInProduction = false;
                    $isOnOrder = false;

                    if($arOffer['PROPERTIES']['ON_ROAD']['VALUE'] == 'Y'){
                        $isOnRoad = true;
                    }
                    if($arOffer['PROPERTIES']['IN_PRODUCTION']['VALUE'] == 'Y'){
                        $isInProduction = true;
                    }
                    if($arOffer['PROPERTIES']['ALLOW']['VALUE'] == 'Y'){
                        $isOnOrder = true;
                    }
                    if($isOnRoad || $isInProduction || $isOnOrder){
                        $isAvail = false;
                    }
                    if(!$isAvail){
                        $avail = "https://schema.org/PreOrder";
                    }
                } else {
                    $avail = "https://schema.org/OutOfStock";
                }

                $offerJson[] = array(
                    "@type" => "Offer",
                    "sku" => isset($arOffer['IPROPERTY_VALUES']['ELEMENT_PAGE_TITLE'])
                        ? $arOffer['IPROPERTY_VALUES']['ELEMENT_PAGE_TITLE']
                        : $arOffer['NAME'],
                    "priceCurrency" => $AR_PRICE['CURRENCY'],
                    "price" => $AR_PRICE['PRICE'],
                    "url" => $detailPath,
                    "availability" => $avail,
                );
            }
        }

        if (count($offerJson) > 0) {
            $microJs["offers"] = $offerJson;
        }

        if (count($offerJson) == 0) {
            $show_product = false;
        }
    } else {

        $avail = "";
        if ($arResult["CAN_BUY"]) {
            $avail = "https://schema.org/InStock";



            $isAvail = true;
            $isOnRoad = false;
            $isInProduction = false;
            $isOnOrder = false;

            if($arResult['PROPERTIES']['ON_ROAD']['VALUE'] == 'Y'){
                $isOnRoad = true;
            }
            if($arResult['PROPERTIES']['IN_PRODUCTION']['VALUE'] == 'Y'){
                $isInProduction = true;
            }
            if($arResult['PROPERTIES']['ALLOW']['VALUE'] == 'Y'){
                $isOnOrder = true;
            }
            if($isOnRoad || $isInProduction || $isOnOrder){
                $isAvail = false;
            }
            if(!$isAvail){
                $avail = "https://schema.org/PreOrder";
            }

        } else {
            $avail = "https://schema.org/OutOfStock";
        }

        $AR_PRICE = getMinPrice($arResult);
        if ($AR_PRICE['PRICE'] > 0) {
            $microJs["offers"] = array(
                "@type" => "Offer",
                "priceCurrency" => $AR_PRICE['CURRENCY'],
                "price" => $AR_PRICE['PRICE'],
                "url" => $detailPath,
                "availability" => $avail,
            );
        }

        if (empty($AR_PRICE['PRICE'])) {
            $show_product = false;
        }
    }

    //pre($microJs);
    if(count($microJs['image']) == 0) unset($microJs['image']);
    //if (strlen($microJs['image']['contentUrl']) <= 0) unset($microJs['image']);
    if (strlen($microJs['description']) <= 0) unset($microJs['description']);
    $arResult['JSON'] = $microJs;
    if (!$show_product) {
        $arResult['JSON']["@type"] = 'Thing';
    }
}

function AddProductListMicrodata(&$arResult){


    global $APPLICATION;
    $DIR = $APPLICATION->getCurDir();


    $arProtocol = CMain::IsHTTPS() ? "https://" : "http://";
    $serverName = SITE_SERVER_NAME;

    $PagePath = $DIR;
    if (strpos($PagePath, ':') === false)
    {
        $PagePath = $arProtocol . $serverName . $PagePath;
    }

    $microJs = array(
        "@type" => "ItemList",
        "@context" => "http://schema.org/",
        "url" => $PagePath,
        //"description" => $arResult['PREVIEW_TEXT'],
        "name" => isset($arResult['IPROPERTY_VALUES']['SECTION_PAGE_TITLE'])
            ? $arResult['IPROPERTY_VALUES']['SECTION_PAGE_TITLE']
            : $arResult['NAME'],
        "itemListElement"=>array(),
        "numberOfItems"=>0,
    );

    foreach($arResult['ITEMS'] as $arItem){
        AddProductItemMicrodata($arItem);
        if($arItem['JSON']){
            if($arItem['JSON']["@type"] != "Product"){
                $arItem['JSON']["@type"] = "ListItem";
            }
            $microJs["itemListElement"][] = $arItem['JSON'];
        }
    }
    $COUNT = count($microJs["itemListElement"]);

    if($COUNT>0){
        $microJs["numberOfItems"] = $COUNT;
        $arResult['JSON'] = $microJs;
    }
}

function AddProductMicrodata(&$arResult){
    $isList = false;
    if(is_array($arResult) && !empty($arResult)){
        if(array_key_exists('ITEMS',$arResult)){
            $isList = true;
        }
    }
    if($isList){
        AddProductListMicrodata($arResult);
    }else{
        AddProductItemMicrodata($arResult);
    }
}



function getAttributesFromImgHtml($HTML){
    $contentType = '<meta http-equiv="Content-Type" content="text/html; charset=utf-8">';
    libxml_use_internal_errors(false);
    $doc = new DOMDocument();

    //LIBXML_HTML_NOIMPLIED - выключает автоматическое добавление html/body // не дает валидный HTML
    //LIBXML_HTML_NODEFDTD - выключает автоматическое добавление doctype
    @$doc->loadHTML($contentType."<body>".$HTML."</body>", LIBXML_HTML_NODEFDTD );
    $xpath = new DOMXPath($doc);

    $arResult = array();
    $nodes = $xpath->query('//img');
    foreach($nodes as $node) {
        $href = $node->getAttribute('src');
        //$alt = $node->getAttribute('alt');
        //$title = $node->getAttribute('title');
        if($href) {
            if ($node->hasAttributes()) {
                foreach ($node->attributes as $attr) {
                    $name = $attr->nodeName;
                    $value = $attr->nodeValue;
                    $arResult[$href][$name] = $value;
                }
            }
        }
    }

    return $arResult;

}

function allImagesItemList($arList){
    global $APPLICATION;
    $DIR = $APPLICATION->getCurDir();


    $arProtocol = CMain::IsHTTPS() ? "https://" : "http://";
    $serverName = SITE_SERVER_NAME;

    $PagePath = $DIR;
    if (strpos($PagePath, ':') === false)
    {
        $PagePath = $arProtocol . $serverName . $PagePath;
    }

    $microJs = array(
        "@type" => "ItemList",
        "@context" => "http://schema.org/",
        "url" => $PagePath,
        "itemListElement"=>array(),
    );

    foreach($arList as $arItem){

        $ListItem = array(
            "@type" => "ListItem",
            "@context" => "http://schema.org/",
            "image" => array(
                "@type" => "ImageObject",
                "contentUrl"=> URN2URI($arItem['src']),
                "name" => $arItem['alt'],
            ),
        );
        if(empty($ListItem['image']["name"])){
            unset($ListItem['image']["name"]);
        }
        $microJs['itemListElement'][] = $ListItem;
    }
    return $microJs;
}

result_modifier,php

<?
$this->getComponent()->SetResultCacheKeys(array('JSON'));
AddProductMicrodata($arResult);