[WIP][FEATURE] Allow randomization within a record

A new button makes it possible to randomize a record
directly inside the record

Classes/Hooks/ButtonBarHook.php

@@ -0,0 +1,143 @@
+<?php
+declare(strict_types=1);
+
+namespace GeorgRinger\Gdpr\Hooks;
+
+use GeorgRinger\Gdpr\Domain\Model\Dto\Table;
+use GeorgRinger\Gdpr\Log\LogManager;
+use GeorgRinger\Gdpr\Service\Randomization;
+use GeorgRinger\Gdpr\Service\TableInformation;
+use TYPO3\CMS\Backend\Template\Components\ButtonBar;
+use TYPO3\CMS\Core\Database\ConnectionPool;
+use TYPO3\CMS\Core\Imaging\Icon;
+use TYPO3\CMS\Core\Imaging\IconFactory;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Core\Utility\HttpUtility;
+
+class ButtonBarHook
+{
+    protected $tableName = '';
+
+    /**
+     * Get buttons
+     *
+     * @param array $params
+     * @param ButtonBar $buttonBar
+     * @return array
+     */
+    public function getButtons(array $params, ButtonBar $buttonBar)
+    {
+        $buttons = $params['buttons'];
+        if (!$this->isButtonVisible()) {
+            return $buttons;
+        }
+
+        $iconFactory = GeneralUtility::makeInstance(IconFactory::class);
+
+        $randomizeStatus = (int)GeneralUtility::_GET('randomize');
+        if ($randomizeStatus === 1) {
+            $url = GeneralUtility::linkThisScript(['randomize' => 1]);
+            $button = $buttonBar->makeLinkButton();
+            $button->setIcon($iconFactory->getIcon('actions-synchronize', Icon::SIZE_SMALL));
+            $button->setTitle('My custom docHeader button');
+            $button->setClasses('t3js-modal-trigger');
+            $button->setHref($url);
+            $button->setDataAttributes([
+                'toggle' => 'tooltip',
+                'severity' => 'error',
+                'title' => 'Randomize record',
+                'content' => 'Should this record be really randomized? Content will be gone forever!',
+                'button-ok-text' => 'Randomize'
+            ]);
+
+            $buttons[ButtonBar::BUTTON_POSITION_LEFT][4][] = $button;
+        }
+        return $buttons;
+    }
+
+    /**
+     * Checks if the popup button should be displayed. Returns false if not.
+     * Otherwise returns true.
+     *
+     * @return bool
+     */
+    protected function isButtonVisible()
+    {
+        $visible = false;
+        $contentUid = $this->getContentUid();
+
+        if ($contentUid !== null && $GLOBALS['BE_USER']->isAdmin()) {
+            $visible = true;
+        }
+
+        if ($visible) {
+            if ((int)GeneralUtility::_GET('randomize') === 1) {
+                $randomizationService = GeneralUtility::makeInstance(Randomization::class, $this->tableName);
+                $randomizationService->generateDataForTable();
+
+                $newValues = $randomizationService->generateDataForTable();
+
+                $tableInformation = Table::getInstance($this->tableName);
+                $newValues[$tableInformation->getGdprRandomizedField()] = 1;
+
+                $connection = GeneralUtility::makeInstance(ConnectionPool::class)->getConnectionForTable($this->tableName);
+                $connection->update(
+                    $this->tableName,
+                    $newValues,
+                    [
+                        'uid' => $contentUid
+                    ]
+                );
+                $logger = GeneralUtility::makeInstance(LogManager::class);
+                $logger->log($this->tableName, $contentUid, LogManager::STATUS_RANDOMIZE);
+
+                $url = GeneralUtility::linkThisScript(['randomize' => 2]);
+                HttpUtility::redirect($url);
+            }
+        }
+
+        return $visible;
+    }
+
+    /**
+     * Returns the uid of the currently edited content element in backend
+     *
+     * @return int|null content element uid
+     */
+    protected function getContentUid()
+    {
+        $editGetParameters = $this->getEditGetParameters();
+        if (!is_array($editGetParameters) || empty($editGetParameters)) {
+            return null;
+        }
+
+        $contentUid = current(array_keys($editGetParameters));
+        if ($editGetParameters[$contentUid] !== 'edit') {
+            return null;
+        }
+
+        return (int)$contentUid;
+    }
+
+    /**
+     * Returns the get parameters
+     *
+     * @return null|array
+     */
+    protected function getEditGetParameters()
+    {
+        $editGetParam = GeneralUtility::_GP('edit');
+        if (empty($editGetParam)) {
+            return null;
+        }
+        $firstKey = array_keys($editGetParam);
+        $tableName = $firstKey[0];
+        if (TableInformation::isTableEnabled($tableName)) {
+            $this->tableName = $tableName;
+            return isset($editGetParam[$tableName]) ? $editGetParam[$tableName] : null;
+        }
+
+        return null;
+    }
+
+}

ext_localconf.php

@@ -7,6 +7,9 @@
 $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS'][\TYPO3\CMS\Core\Database\Query\QueryBuilder::class]['addAdditionalWhereConditions'][1521636341]
     = \GeorgRinger\Gdpr\Hooks\QueryBuilderHook::class;
 
+$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['Backend\Template\Components\ButtonBar']['getButtonsHook']['gdpr'] =
+    \GeorgRinger\Gdpr\Hooks\ButtonBarHook::class . '->getButtons';
+
 // overlay icon
 $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS'][\TYPO3\CMS\Core\Imaging\IconFactory::class]['overrideIconOverlay'][] = \GeorgRinger\Gdpr\Hooks\IconFactoryHook::class;