PageViewHelper.php

Go to the documentation of this file.

<?php
 
declare(strict_types=1);
 
/*
 * This file is part of the TYPO3 CMS project.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 *
 * The TYPO3 project - inspiring people to share!
 */
 
namespace ‪TYPO3\CMS\Fluid\ViewHelpers\Link;
 
use Psr\Http\Message\ServerRequestInterface;
use ‪TYPO3\CMS\Backend\Routing\Exception\RouteNotFoundException;
use ‪TYPO3\CMS\Backend\Routing\Route;
use ‪TYPO3\CMS\Backend\Routing\UriBuilder as BackendUriBuilder;
use ‪TYPO3\CMS\Core\Http\ApplicationType;
use ‪TYPO3\CMS\Core\Utility\ArrayUtility;
use ‪TYPO3\CMS\Core\Utility\GeneralUtility;
use ‪TYPO3\CMS\Core\Utility\HttpUtility;
use ‪TYPO3\CMS\Core\Utility\MathUtility;
use ‪TYPO3\CMS\Extbase\Mvc\RequestInterface as ExtbaseRequestInterface;
use ‪TYPO3\CMS\Extbase\Mvc\Web\Routing\UriBuilder as ExtbaseUriBuilder;
use ‪TYPO3\CMS\Fluid\Core\Rendering\RenderingContext;
use ‪TYPO3\CMS\Frontend\ContentObject\ContentObjectRenderer;
use ‪TYPO3\CMS\Frontend\Typolink\LinkFactory;
use ‪TYPO3\CMS\Frontend\Typolink\UnableToLinkException;
use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractTagBasedViewHelper;
 
final class ‪PageViewHelper extends AbstractTagBasedViewHelper
{
    protected ‪$tagName = 'a';
 
    public function ‪initializeArguments(): void
    {
        parent::initializeArguments();
        $this->registerUniversalTagAttributes();
        $this->registerTagAttribute('target', 'string', 'Target of link', false);
        $this->registerTagAttribute('rel', 'string', 'Specifies the relationship between the current document and the linked document', false);
        $this->registerArgument('pageUid', 'int', 'Target page. See TypoLink destination');
        $this->registerArgument('pageType', 'int', 'Type of the target page. See typolink.parameter');
        $this->registerArgument('noCache', 'bool', 'Set this to disable caching for the target page. You should not need this.');
        $this->registerArgument('language', 'string', 'link to a specific language - defaults to the current language, use a language ID or "current" to enforce a specific language', false);
        $this->registerArgument('section', 'string', 'The anchor to be added to the URI');
        $this->registerArgument('linkAccessRestrictedPages', 'bool', 'If set, links pointing to access restricted pages will still link to the page even though the page cannot be accessed.');
        $this->registerArgument('additionalParams', 'array', 'Additional query parameters that won\'t be prefixed like $arguments (overrule $arguments)');
        $this->registerArgument('absolute', 'bool', 'If set, the URI of the rendered link is absolute');
        $this->registerArgument('addQueryString', 'string', 'If set, the current query parameters will be kept in the URL. If set to "untrusted", then ALL query parameters will be added. Be aware, that this might lead to problems when the generated link is cached.', false, false);
        $this->registerArgument('argumentsToBeExcludedFromQueryString', 'array', 'Arguments to be removed from the URI. Only active if $addQueryString = TRUE');
    }
 
    public function ‪render(): string
    {
        $renderingContext = $this->renderingContext;
        $request = $renderingContext->getRequest();
 
        if ($request instanceof ExtbaseRequestInterface) {
            return $this->‪renderWithExtbaseContext($request);
        }
        if ($request instanceof ServerRequestInterface) {
            if (‪ApplicationType::fromRequest($request)->isFrontend()) {
                // Use the regular typolink functionality.
                return $this->‪renderFrontendLinkWithCoreContext($request);
            }
            $uri = $this->‪renderBackendLinkWithCoreContext($request);
            if ($uri !== '') {
                $this->tag->addAttribute('href', $uri);
                $this->tag->setContent($this->renderChildren());
                $this->tag->forceClosingTag(true);
                $result = $this->tag->render();
            } else {
                $result = (string)$this->renderChildren();
            }
            return $result;
        }
        throw new \RuntimeException(
            'The rendering context of ViewHelper f:link.page is missing a valid request object.',
            1639819269
        );
    }
 
    protected function ‪renderFrontendLinkWithCoreContext(ServerRequestInterface $request): string
    {
        $pageUid = isset($this->arguments['pageUid']) ? (int)$this->arguments['pageUid'] : 'current';
        $pageType = isset($this->arguments['pageType']) ? (int)$this->arguments['pageType'] : 0;
        $noCache = isset($this->arguments['noCache']) && (bool)$this->arguments['noCache'];
        $section = isset($this->arguments['section']) ? (string)$this->arguments['section'] : '';
        $language = isset($this->arguments['language']) ? (string)$this->arguments['language'] : null;
        $linkAccessRestrictedPages = isset($this->arguments['linkAccessRestrictedPages']) && (bool)$this->arguments['linkAccessRestrictedPages'];
        $additionalParams = isset($this->arguments['additionalParams']) ? (array)$this->arguments['additionalParams'] : [];
        $absolute = isset($this->arguments['absolute']) && (bool)$this->arguments['absolute'];
        $addQueryString = $this->arguments['addQueryString'] ?? false;
        $argumentsToBeExcludedFromQueryString = isset($this->arguments['argumentsToBeExcludedFromQueryString']) ? (array)$this->arguments['argumentsToBeExcludedFromQueryString'] : [];
 
        $typolinkConfiguration = [
            'parameter' => $pageUid,
        ];
        if ($pageType) {
            $typolinkConfiguration['parameter'] .= ',' . $pageType;
        }
        if ($noCache) {
            $typolinkConfiguration['no_cache'] = 1;
        }
        if ($language !== null) {
            $typolinkConfiguration['language'] = $language;
        }
        if ($section) {
            $typolinkConfiguration['section'] = $section;
        }
        if ($linkAccessRestrictedPages) {
            $typolinkConfiguration['linkAccessRestrictedPages'] = 1;
        }
        if ($additionalParams) {
            $typolinkConfiguration['additionalParams'] = ‪HttpUtility::buildQueryString($additionalParams, '&');
        }
        if ($absolute) {
            $typolinkConfiguration['forceAbsoluteUrl'] = true;
        }
        if ($addQueryString && $addQueryString !== 'false') {
            $typolinkConfiguration['addQueryString'] = $addQueryString;
            if ($argumentsToBeExcludedFromQueryString !== []) {
                $typolinkConfiguration['addQueryString.']['exclude'] = implode(',', $argumentsToBeExcludedFromQueryString);
            }
        }
 
        try {
            $cObj = GeneralUtility::makeInstance(ContentObjectRenderer::class);
            $cObj->setRequest($request);
            $linkFactory = GeneralUtility::makeInstance(LinkFactory::class);
            $linkResult = $linkFactory->create((string)$this->renderChildren(), $typolinkConfiguration, $cObj);
 
            // Removing TypoLink target here to ensure same behaviour with extbase uri builder in this context.
            $linkResultAttributes = $linkResult->getAttributes();
            unset($linkResultAttributes['target']);
 
            $this->tag->addAttributes($linkResultAttributes);
            $this->tag->setContent($this->renderChildren());
            $this->tag->forceClosingTag(true);
            $result = $this->tag->render();
        } catch (‪UnableToLinkException) {
            $result = (string)$this->renderChildren();
        }
        return $result;
    }
 
    protected function ‪renderBackendLinkWithCoreContext(ServerRequestInterface $request): string
    {
        $pageUid = isset($this->arguments['pageUid']) ? (int)$this->arguments['pageUid'] : null;
        $section = isset($this->arguments['section']) ? (string)$this->arguments['section'] : '';
        $additionalParams = isset($this->arguments['additionalParams']) ? (array)$this->arguments['additionalParams'] : [];
        $absolute = isset($this->arguments['absolute']) && (bool)$this->arguments['absolute'];
        $addQueryString = $this->arguments['addQueryString'] ?? false;
        $argumentsToBeExcludedFromQueryString = isset($this->arguments['argumentsToBeExcludedFromQueryString']) ? (array)$this->arguments['argumentsToBeExcludedFromQueryString'] : [];
 
        $arguments = [];
        if ($addQueryString && $addQueryString !== 'false') {
            $arguments = $request->getQueryParams();
            foreach ($argumentsToBeExcludedFromQueryString as $argumentToBeExcluded) {
                $argumentArrayToBeExcluded = [];
                parse_str($argumentToBeExcluded, $argumentArrayToBeExcluded);
                $arguments = ArrayUtility::arrayDiffKeyRecursive($arguments, $argumentArrayToBeExcluded);
            }
        }
 
        $id = $pageUid ?? $request->getQueryParams()['id'] ?? null;
        if ($id !== null) {
            $arguments['id'] = $id;
        }
        if (!isset($arguments['route']) && ($route = $request->getAttribute('route')) instanceof ‪Route) {
            $arguments['route'] = $route->getOption('_identifier');
        }
        $arguments = array_replace_recursive($arguments, $additionalParams);
        $routeName = $arguments['route'] ?? null;
        unset($arguments['route'], $arguments['token']);
        $backendUriBuilder = GeneralUtility::makeInstance(BackendUriBuilder::class);
        try {
            if ($absolute) {
                $uri = (string)$backendUriBuilder->buildUriFromRoute($routeName, $arguments, BackendUriBuilder::ABSOLUTE_URL);
            } else {
                $uri = (string)$backendUriBuilder->buildUriFromRoute($routeName, $arguments, BackendUriBuilder::ABSOLUTE_PATH);
            }
        } catch (‪RouteNotFoundException) {
            $uri = '';
        }
        if ($section !== '') {
            $uri .= '#' . $section;
        }
        return $uri;
    }
 
    protected function ‪renderWithExtbaseContext(ExtbaseRequestInterface $request): string
    {
        $pageUid = isset($this->arguments['pageUid']) ? (int)$this->arguments['pageUid'] : null;
        $pageType = isset($this->arguments['pageType']) ? (int)$this->arguments['pageType'] : 0;
        $noCache = isset($this->arguments['noCache']) && (bool)$this->arguments['noCache'];
        $section = isset($this->arguments['section']) ? (string)$this->arguments['section'] : '';
        $language = isset($this->arguments['language']) ? (string)$this->arguments['language'] : null;
        $linkAccessRestrictedPages = isset($this->arguments['linkAccessRestrictedPages']) && (bool)$this->arguments['linkAccessRestrictedPages'];
        $additionalParams = isset($this->arguments['additionalParams']) ? (array)$this->arguments['additionalParams'] : [];
        $absolute = isset($this->arguments['absolute']) && (bool)$this->arguments['absolute'];
        $addQueryString = $this->arguments['addQueryString'] ?? false;
        $argumentsToBeExcludedFromQueryString = isset($this->arguments['argumentsToBeExcludedFromQueryString']) ? (array)$this->arguments['argumentsToBeExcludedFromQueryString'] : [];
 
        $uriBuilder = GeneralUtility::makeInstance(ExtbaseUriBuilder::class);
        $uriBuilder->reset()
            ->setRequest($request)
            ->setTargetPageType($pageType)
            ->setNoCache($noCache)
            ->setSection($section)
            ->setLanguage($language)
            ->setLinkAccessRestrictedPages($linkAccessRestrictedPages)
            ->setArguments($additionalParams)
            ->setCreateAbsoluteUri($absolute)
            ->setAddQueryString($addQueryString)
            ->setArgumentsToBeExcludedFromQueryString($argumentsToBeExcludedFromQueryString);
 
        if (‪MathUtility::canBeInterpretedAsInteger($pageUid)) {
            $uriBuilder->setTargetPageUid((int)$pageUid);
        }
 
        $uri = $uriBuilder->build();
        if ($uri !== '') {
            $this->tag->addAttribute('href', $uri);
            $this->tag->setContent($this->renderChildren());
            $this->tag->forceClosingTag(true);
            $result = $this->tag->render();
        } else {
            $result = (string)$this->renderChildren();
        }
        return $result;
    }
}