RsaInputElement.php

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<?php
namespace TYPO3\CMS\Rsaauth\Form\Element;

/*
 * 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!
 */

use TYPO3\CMS\Backend\Form\Element\AbstractFormElement;
use TYPO3\CMS\Backend\Utility\BackendUtility;
use TYPO3\CMS\Core\Utility\GeneralUtility;
use TYPO3\CMS\Core\Utility\MathUtility;
use TYPO3\CMS\Core\Utility\StringUtility;

class RsaInputElement extends AbstractFormElement
{
    public function render()
    {
        $table = $this->data['tableName'];
        $fieldName = $this->data['fieldName'];
        $row = $this->data['databaseRow'];
        $parameterArray = $this->data['parameterArray'];
        $resultArray = $this->initializeResultArray();
        $resultArray['requireJsModules'] = array('TYPO3/CMS/Rsaauth/RsaEncryptionModule');

        $config = $parameterArray['fieldConf']['config'];
        $specConf = BackendUtility::getSpecConfParts($parameterArray['fieldConf']['defaultExtras']);
        $size = MathUtility::forceIntegerInRange($config['size'] ?: $this->defaultInputWidth, $this->minimumInputWidth, $this->maxInputWidth);
        $evalList = GeneralUtility::trimExplode(',', $config['eval'], true);
        $classes = array();
        $attributes = array(
            'type' => 'text',
            'value' => '',
        );

        if ($config['readOnly']) {
            $itemFormElValue = $parameterArray['itemFormElValue'];
            $options = $this->data;
            $options['parameterArray'] = array(
                'fieldConf' => array(
                    'config' => $config,
                ),
                'itemFormElValue' => $itemFormElValue,
            );
            $options['renderType'] = 'none';
            return $this->nodeFactory->create($options)->render();
        }

        // @todo: The whole eval handling is a mess and needs refactoring
        foreach ($evalList as $func) {
            switch ($func) {
                case 'required':
                    $attributes['data-formengine-validation-rules'] = $this->getValidationDataAsJsonString(array('required' => true));
                    break;
                case 'password':
                    $attributes['type'] = 'password';
                    $attributes['value'] = '********';
                    $attributes['autocomplete'] = 'off';
                    break;
                default:
                    // @todo: This is ugly: The code should find out on it's own whether a eval definition is a
                    // @todo: keyword like "date", or a class reference. The global registration could be dropped then
                    // Pair hook to the one in \TYPO3\CMS\Core\DataHandling\DataHandler::checkValue_input_Eval()
                    if (isset($GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['tce']['formevals'][$func])) {
                        if (class_exists($func)) {
                            $evalObj = GeneralUtility::makeInstance($func);
                            if (method_exists($evalObj, 'deevaluateFieldValue')) {
                                $_params = array(
                                    'value' => $parameterArray['itemFormElValue']
                                );
                                $parameterArray['itemFormElValue'] = $evalObj->deevaluateFieldValue($_params);
                            }
                        }
                    }
            }
        }
        $evalList = array_filter($evalList, function ($value) {
            return $value !== 'password';
        });

        $paramsList = array(
            'field' => $parameterArray['itemFormElName'],
            'evalList' => implode(',', $evalList),
            'is_in' => trim($config['is_in']),
        );
        // set classes
        $classes[] = 'form-control';
        $classes[] = 't3js-clearable';
        $classes[] = 'hasDefaultValue';

        // calculate attributes
        $attributes['data-formengine-validation-rules'] = $this->getValidationDataAsJsonString($config);
        $attributes['data-formengine-input-params'] = json_encode($paramsList);
        $attributes['data-formengine-input-name'] = htmlspecialchars($parameterArray['itemFormElName']);
        $attributes['id'] = StringUtility::getUniqueId('formengine-input-');
        if (isset($config['max']) && (int)$config['max'] > 0) {
            $attributes['maxlength'] = (int)$config['max'];
        }
        if (!empty($classes)) {
            $attributes['class'] = implode(' ', $classes);
        }
        if (isset($config['max']) && (int)$config['max'] > 0) {
            $attributes['maxlength'] = (int)$config['max'];
        }

        // This is the EDITABLE form field.
        if (!empty($config['placeholder'])) {
            $attributes['placeholder'] = trim($config['placeholder']);
        }

        if (isset($config['autocomplete'])) {
            $attributes['autocomplete'] = empty($config['autocomplete']) ? 'off' : 'on';
        }

        // Build the attribute string
        $attributeString = '';
        foreach ($attributes as $attributeName => $attributeValue) {
            $attributeString .= ' ' . $attributeName . '="' . htmlspecialchars($attributeValue) . '"';
        }

        $html = '
                        <input'
            . $attributeString
            . $parameterArray['onFocus'] . ' />';

        // This is the ACTUAL form field - values from the EDITABLE field must be transferred to this field which is the one that is written to the database.
        $html .= '<input type="hidden" data-rsa-encryption="" id="' . $parameterArray['itemFormElID'] . '_hidden" name="' . $parameterArray['itemFormElName'] . '" value="' . htmlspecialchars($parameterArray['itemFormElValue']) . '" />';

        // Going through all custom evaluations configured for this field
        // @todo: Similar to above code!
        foreach ($evalList as $evalData) {
            if (isset($GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['tce']['formevals'][$evalData])) {
                if (class_exists($evalData)) {
                    $evalObj = GeneralUtility::makeInstance($evalData);
                    if (method_exists($evalObj, 'returnFieldJS')) {
                        $resultArray['extJSCODE'] .= LF . 'TBE_EDITOR.customEvalFunctions[' . GeneralUtility::quoteJSvalue($evalData) . '] = function(value) {' . $evalObj->returnFieldJS() . '}';
                    }
                }
            }
        }

        // Wrap a wizard around the item?
        $html = $this->renderWizards(
            array($html),
            $config['wizards'],
            $table,
            $row,
            $fieldName,
            $parameterArray,
            $parameterArray['itemFormElName'],
            $specConf
        );

        // Add a wrapper to remain maximum width
        $width = (int)$this->formMaxWidth($size);
        $html = '<div class="form-control-wrap"' . ($width ? ' style="max-width: ' . $width . 'px"' : '') . '>' . $html . '</div>';
        $resultArray['html'] = $html;
        return $resultArray;
    }
}