AbstractLinkBrowserController.php

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<?php
 
/*
 * 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\Recordlist\Controller;
 
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use ‪TYPO3\CMS\Backend\Routing\UriBuilder;
use ‪TYPO3\CMS\Backend\Template\ModuleTemplate;
use ‪TYPO3\CMS\Backend\Utility\BackendUtility;
use ‪TYPO3\CMS\Core\Authentication\BackendUserAuthentication;
use ‪TYPO3\CMS\Core\Http\HtmlResponse;
use ‪TYPO3\CMS\Core\Localization\LanguageService;
use ‪TYPO3\CMS\Core\Service\DependencyOrderingService;
use ‪TYPO3\CMS\Core\Utility\GeneralUtility;
use ‪TYPO3\CMS\Core\Utility\HttpUtility;
use ‪TYPO3\CMS\Recordlist\LinkHandler\LinkHandlerInterface;
 
abstract class ‪AbstractLinkBrowserController
{
    protected ‪$moduleTemplate;
 
    protected ‪$parameters;
 
    protected ‪$thisScript = '';
 
    protected ‪$linkHandlers = [];
 
    protected ‪$currentLinkParts = [];
 
    protected ‪$currentLinkHandler;
 
    protected ‪$currentLinkHandlerId;
 
    protected ‪$displayedLinkHandler;
 
    protected ‪$displayedLinkHandlerId = '';
 
    protected ‪$linkAttributeFields = [];
 
    protected ‪$linkAttributeValues = [];
 
    protected ‪$hookObjects = [];
 
    public function ‪__construct()
    {
        $this->moduleTemplate = GeneralUtility::makeInstance(ModuleTemplate::class);
        $this->moduleTemplate->getDocHeaderComponent()->disable();
        $this->moduleTemplate->getView()->setTemplate('LinkBrowser');
        $this->‪initHookObjects();
        $this->‪init();
    }
 
    protected function ‪init()
    {
        $this->‪getLanguageService()->‪includeLLFile('EXT:recordlist/Resources/Private/Language/locallang_browse_links.xlf');
    }
 
    protected function ‪initHookObjects()
    {
        $hooks = GeneralUtility::makeInstance(DependencyOrderingService::class)->orderByDependencies(
            ‪$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['LinkBrowser']['hooks'] ?? []
        );
        foreach ($hooks as $key => $hook) {
            $this->hookObjects[] = GeneralUtility::makeInstance($hook['handler']);
        }
    }
 
    public function ‪mainAction(ServerRequestInterface $request): ResponseInterface
    {
        $this->‪determineScriptUrl($request);
        $this->‪initVariables($request);
        $this->‪loadLinkHandlers();
        $this->‪initCurrentUrl();
 
        $menuData = $this->‪buildMenuArray();
        $renderLinkAttributeFields = $this->‪renderLinkAttributeFields();
        $browserContent = $this->displayedLinkHandler->render($request);
 
        $this->‪initDocumentTemplate();
        $view = $this->moduleTemplate->getView();
        $this->moduleTemplate->setTitle('Link Browser');
 
        if (!empty($this->currentLinkParts)) {
            $this->‪renderCurrentUrl();
        }
 
        $view->assign('menuItems', $menuData);
        $view->assign('linkAttributes', $renderLinkAttributeFields);
        $view->assign('content', $browserContent);
 
        return new ‪HtmlResponse($this->moduleTemplate->renderContent());
    }
 
    protected function ‪determineScriptUrl(ServerRequestInterface $request)
    {
        if ($routePath = $request->getQueryParams()['route']) {
            $uriBuilder = GeneralUtility::makeInstance(UriBuilder::class);
            $this->thisScript = (string)$uriBuilder->buildUriFromRoutePath($routePath);
        } else {
            $this->thisScript = GeneralUtility::getIndpEnv('SCRIPT_NAME');
        }
    }
 
    protected function ‪initVariables(ServerRequestInterface $request)
    {
        $queryParams = $request->getQueryParams();
        $this->displayedLinkHandlerId = $queryParams['act'] ?? '';
        $this->parameters = $queryParams['P'] ?? [];
        $this->linkAttributeValues = $queryParams['linkAttributes'] ?? [];
    }
 
    protected function ‪loadLinkHandlers()
    {
        ‪$linkHandlers = $this->getLinkHandlers();
        if (empty(‪$linkHandlers)) {
            throw new \UnexpectedValueException('No link handlers are configured. Check page TSconfig TCEMAIN.linkHandler.', 1442787911);
        }
 
        $lang = $this->‪getLanguageService();
        foreach ($linkHandlers as $identifier => $configuration) {
            $identifier = rtrim($identifier, '.');
 
            if (empty($configuration['handler'])) {
                throw new \UnexpectedValueException(sprintf('Missing handler for link handler "%1$s", check page TSconfig TCEMAIN.linkHandler.%1$s.handler', $identifier), 1494579849);
            }
 
            $handler = GeneralUtility::makeInstance($configuration['handler']);
            $handler->initialize(
                $this,
                $identifier,
                $configuration['configuration.'] ?? []
            );
 
            $label = !empty($configuration['label']) ? $lang->sL($configuration['label']) : '';
            $label = $label ?: $lang->sL('LLL:EXT:recordlist/Resources/Private/Language/locallang.xlf:error.linkHandlerTitleMissing');
            $this->linkHandlers[$identifier] = [
                'handlerInstance' => $handler,
                'label' => htmlspecialchars($label),
                'displayBefore' => isset($configuration['displayBefore']) ? ‪GeneralUtility::trimExplode(',', $configuration['displayBefore']) : [],
                'displayAfter' => isset($configuration['displayAfter']) ? GeneralUtility::trimExplode(',', $configuration['displayAfter']) : [],
                'scanBefore' => isset($configuration['scanBefore']) ? GeneralUtility::trimExplode(',', $configuration['scanBefore']) : [],
                'scanAfter' => isset($configuration['scanAfter']) ? GeneralUtility::trimExplode(',', $configuration['scanAfter']) : [],
                'addParams' => $configuration['addParams'] ?? '',
            ];
        }
    }
 
    protected function getLinkHandlers()
    {
        ‪$linkHandlers = (array)(‪BackendUtility::getPagesTSconfig($this->‪getCurrentPageId())['TCEMAIN.']['linkHandler.'] ?? []);
        foreach ($this->hookObjects as $hookObject) {
            if (method_exists($hookObject, 'modifyLinkHandlers')) {
                ‪$linkHandlers = $hookObject->modifyLinkHandlers(‪$linkHandlers, $this->currentLinkParts);
            }
        }
 
        return ‪$linkHandlers;
    }
 
    protected function ‪initCurrentUrl()
    {
        if (empty($this->currentLinkParts)) {
            return;
        }
 
        $orderedHandlers = GeneralUtility::makeInstance(DependencyOrderingService::class)->orderByDependencies($this->linkHandlers, 'scanBefore', 'scanAfter');
 
        // find responsible handler for current link
        foreach ($orderedHandlers as $key => $configuration) {
            $handler = $configuration['handlerInstance'];
            if ($handler->canHandleLink($this->currentLinkParts)) {
                $this->currentLinkHandler = $handler;
                $this->currentLinkHandlerId = $key;
                break;
            }
        }
        // reset the link if we have no handler for it
        if (!$this->currentLinkHandler) {
            $this->currentLinkParts = [];
        }
 
        // overwrite any preexisting
        foreach ($this->currentLinkParts as $key => $part) {
            if ($key !== 'url') {
                $this->linkAttributeValues[$key] = $part;
            }
        }
    }
 
    protected function ‪initDocumentTemplate()
    {
        $bodyTag = $this->moduleTemplate->getBodyTag();
        $bodyTag = str_replace('>', ' ' . GeneralUtility::implodeAttributes($this->‪getBodyTagAttributes(), true, true) . '>', $bodyTag);
        $this->moduleTemplate->setBodyTag($bodyTag);
    }
 
    protected function ‪renderCurrentUrl()
    {
        $this->moduleTemplate->getView()->assign('currentUrl', $this->currentLinkHandler->formatCurrentUrl());
    }
 
    protected function ‪buildMenuArray()
    {
        $allowedItems = $this->‪getAllowedItems();
        if ($this->displayedLinkHandlerId && !in_array($this->displayedLinkHandlerId, $allowedItems, true)) {
            $this->displayedLinkHandlerId = '';
        }
 
        $allowedHandlers = array_flip($allowedItems);
        $menuDef = [];
        foreach ($this->linkHandlers as $identifier => $configuration) {
            if (!isset($allowedHandlers[$identifier])) {
                continue;
            }
 
            $handlerInstance = $configuration['handlerInstance'];
            $isActive = $this->displayedLinkHandlerId === $identifier || !$this->displayedLinkHandlerId && $handlerInstance === ‪$this->currentLinkHandler;
            if ($isActive) {
                $this->displayedLinkHandler = $handlerInstance;
                if (!$this->displayedLinkHandlerId) {
                    $this->displayedLinkHandlerId = ‪$this->currentLinkHandlerId;
                }
            }
 
            $menuDef[$identifier] = [
                'isActive' => $isActive,
                'label' => $configuration['label'],
                'url' => $this->thisScript . ‪HttpUtility::buildQueryString($this->‪getUrlParameters(['act' => $identifier]), '&'),
                'addParams' => $configuration['addParams'] ?? '',
                'before' => $configuration['displayBefore'],
                'after' => $configuration['displayAfter']
            ];
        }
 
        $menuDef = GeneralUtility::makeInstance(DependencyOrderingService::class)->orderByDependencies($menuDef);
 
        // if there is no active tab
        if (!$this->displayedLinkHandler) {
            // empty the current link
            $this->currentLinkParts = [];
            $this->currentLinkHandler = null;
            $this->currentLinkHandler = '';
            // select first tab
            reset($menuDef);
            $this->displayedLinkHandlerId = key($menuDef);
            $this->displayedLinkHandler = $this->linkHandlers[‪$this->displayedLinkHandlerId]['handlerInstance'];
            $menuDef[‪$this->displayedLinkHandlerId]['isActive'] = true;
        }
 
        return $menuDef;
    }
 
    protected function ‪getAllowedItems()
    {
        $allowedItems = array_keys($this->linkHandlers);
 
        foreach ($this->hookObjects as $hookObject) {
            if (method_exists($hookObject, 'modifyAllowedItems')) {
                $allowedItems = $hookObject->modifyAllowedItems($allowedItems, $this->currentLinkParts);
            }
        }
 
        // Initializing the action value, possibly removing blinded values etc:
        $blindLinkOptions = isset($this->parameters['params']['blindLinkOptions'])
            ? ‪GeneralUtility::trimExplode(',', $this->parameters['params']['blindLinkOptions'])
            : [];
        $allowedItems = array_diff($allowedItems, $blindLinkOptions);
 
        return $allowedItems;
    }
 
    protected function ‪getAllowedLinkAttributes()
    {
        $allowedLinkAttributes = $this->displayedLinkHandler->getLinkAttributes();
 
        // Removing link fields if configured
        $blindLinkFields = isset($this->parameters['params']['blindLinkFields'])
            ? ‪GeneralUtility::trimExplode(',', $this->parameters['params']['blindLinkFields'], true)
            : [];
        $allowedLinkAttributes = array_diff($allowedLinkAttributes, $blindLinkFields);
 
        return $allowedLinkAttributes;
    }
 
    protected function ‪renderLinkAttributeFields()
    {
        $fieldRenderingDefinitions = $this->‪getLinkAttributeFieldDefinitions();
 
        $fieldRenderingDefinitions = $this->displayedLinkHandler->modifyLinkAttributes($fieldRenderingDefinitions);
 
        $this->linkAttributeFields = $this->‪getAllowedLinkAttributes();
 
        $content = '';
        foreach ($this->linkAttributeFields as $attribute) {
            $content .= $fieldRenderingDefinitions[$attribute];
        }
 
        // add update button if appropriate
        if (!empty($this->currentLinkParts) && $this->displayedLinkHandler === $this->currentLinkHandler && $this->currentLinkHandler->isUpdateSupported()) {
            $this->moduleTemplate->getView()->assign('showUpdateParametersButton', true);
        }
        return $content;
    }
 
    protected function ‪getLinkAttributeFieldDefinitions()
    {
        $lang = $this->‪getLanguageService();
 
        $fieldRenderingDefinitions = [];
        $fieldRenderingDefinitions['target'] = '
            <!-- Selecting target for link: -->
            <form action="" name="ltargetform" id="ltargetform" class="t3js-dummyform form-horizontal">
                <div class="form-group form-group-sm" id="typo3-linkTarget">
                    <label class="col-xs-4 control-label">' . htmlspecialchars($lang->getLL('target')) . '</label>
                    <div class="col-xs-3">
                        <input type="text" name="ltarget" class="t3js-linkTarget form-control"
                            value="' . htmlspecialchars($this->linkAttributeValues['target']) . '" />
                    </div>
                    <div class="col-xs-5">
                        <select name="ltarget_type" class="t3js-targetPreselect form-control">
                            <option value=""></option>
                            <option value="_top">' . htmlspecialchars($lang->getLL('top')) . '</option>
                            <option value="_blank">' . htmlspecialchars($lang->getLL('newWindow')) . '</option>
                        </select>
                    </div>
                </div>
            </form>';
 
        $fieldRenderingDefinitions['title'] = '
            <!-- Selecting title for link: -->
            <form action="" name="ltitleform" id="ltitleform" class="t3js-dummyform form-horizontal">
                <div class="form-group form-group-sm" id="typo3-linkTitle">
                    <label class="col-xs-4 control-label">' . htmlspecialchars($lang->getLL('title')) . '</label>
                    <div class="col-xs-8">
                        <input type="text" name="ltitle" class="form-control"
                            value="' . htmlspecialchars($this->linkAttributeValues['title']) . '" />
                    </div>
                </div>
            </form>';
 
        $fieldRenderingDefinitions['class'] = '
            <!-- Selecting class for link: -->
            <form action="" name="lclassform" id="lclassform" class="t3js-dummyform form-horizontal">
                <div class="form-group form-group-sm" id="typo3-linkClass">
                    <label class="col-xs-4 control-label">' . htmlspecialchars($lang->getLL('class')) . '</label>
                    <div class="col-xs-8">
                        <input type="text" name="lclass" class="form-control"
                            value="' . htmlspecialchars($this->linkAttributeValues['class']) . '" />
                    </div>
                </div>
            </form>';
 
        $fieldRenderingDefinitions['params'] = '
            <!-- Selecting params for link: -->
            <form action="" name="lparamsform" id="lparamsform" class="t3js-dummyform form-horizontal">
                <div class="form-group form-group-sm" id="typo3-linkParams">
                    <label class="col-xs-4 control-label">' . htmlspecialchars($lang->getLL('params')) . '</label>
                    <div class="col-xs-8">
                        <input type="text" name="lparams" class="form-control"
                            value="' . htmlspecialchars($this->linkAttributeValues['params']) . '" />
                    </div>
                </div>
            </form>';
 
        return $fieldRenderingDefinitions;
    }
 
    public function ‪getUrlParameters(array $overrides = null)
    {
        return [
            'act' => $overrides['act'] ?? ‪$this->displayedLinkHandlerId,
            'P' => $overrides['P'] ?? ‪$this->parameters,
        ];
    }
 
    protected function ‪getBodyTagAttributes()
    {
        ‪$parameters = [];
        ‪$parameters['uid'] = $this->parameters['uid'];
        ‪$parameters['pid'] = $this->parameters['pid'];
        ‪$parameters['itemName'] = $this->parameters['itemName'];
        ‪$parameters['formName'] = $this->parameters['formName'];
        ‪$parameters['params']['allowedExtensions'] = $this->parameters['params']['allowedExtensions'] ?? '';
        ‪$parameters['params']['blindLinkOptions'] = $this->parameters['params']['blindLinkOptions'] ?? '';
        ‪$parameters['params']['blindLinkFields'] = $this->parameters['params']['blindLinkFields'] ?? '';
        $addPassOnParams = ‪HttpUtility::buildQueryString(['P' => ‪$parameters], '&');
 
        $attributes = $this->displayedLinkHandler->getBodyTagAttributes();
        return array_merge(
            $attributes,
            [
                'data-this-script-url' => strpos($this->thisScript, '?') === false ? $this->thisScript . '?' : $this->thisScript . '&',
                'data-url-parameters' => json_encode($this->‪getUrlParameters()),
                'data-parameters' => json_encode($this->parameters),
                'data-add-on-params' => $addPassOnParams,
                'data-link-attribute-fields' => json_encode($this->linkAttributeFields)
            ]
        );
    }
 
    abstract protected function ‪getCurrentPageId();
 
    public function ‪getParameters()
    {
        return ‪$this->parameters;
    }
 
    public function ‪getConfiguration()
    {
        return [];
    }
 
    protected function ‪getDisplayedLinkHandlerId()
    {
        return ‪$this->displayedLinkHandlerId;
    }
 
    public function ‪getScriptUrl()
    {
        return ‪$this->thisScript;
    }
 
    protected function ‪getLanguageService()
    {
        return ‪$GLOBALS['LANG'];
    }
 
    protected function ‪getBackendUser()
    {
        return ‪$GLOBALS['BE_USER'];
    }
}