[TASK] add svg viewhelper to theme_t3kit and register t3kit fluid nam… (

#150)

* [TASK] add svg viewhelper to theme_t3kit and register t3kit fluid namespaces

* [FIX] correct some PHPCGL issues, only allow image/svg-xml

Classes/ViewHelpers/Render/SvgViewHelper.php

@@ -0,0 +1,110 @@
+<?php
+namespace T3kit\themeT3kit\ViewHelpers\Render;
+
+/***************************************************************
+ *
+ *  Copyright notice
+ *
+ *  (c) 2016 Andrii Pozdieiev <[email protected]>, Mosa Al-Husseini <[email protected]>, Pixelant AB
+ *
+ *  All rights reserved
+ *
+ *  This script is part of the TYPO3 project. The TYPO3 project is
+ *  free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  The GNU General Public License can be found at
+ *  http://www.gnu.org/copyleft/gpl.html.
+ *
+ *  This script is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  This copyright notice MUST APPEAR in all copies of the script!
+ ***************************************************************/
+class SvgViewHelper extends \TYPO3\CMS\Fluid\Core\ViewHelper\AbstractViewHelper
+{
+
+    /**
+     * @var boolean
+     */
+    protected $escapeChildren = false;
+
+    /**
+     * @var boolean
+     */
+    protected $escapeOutput = false;
+
+    /**
+     * Initialize arguments
+     *
+     * @return void
+     */
+    public function initializeArguments()
+    {
+        parent::initializeArguments();
+        $this->registerArgument('class', 'string', 'Specifies an alternate class for the svg', false);
+        $this->registerArgument('width', 'float', 'Specifies a width for the svg', false);
+        $this->registerArgument('height', 'float', 'Specifies a height for the svg', false);
+    }
+
+    /**
+     * Generate a list from the content
+     *
+     * @param string $source
+     */
+    public function render($source)
+    {
+        $sourceAbs = PATH_site . $source;
+
+        if (!file_exists($sourceAbs)) {
+            return '<!-- unable to open file: ' . $source . ' (missing) -->';
+        }
+
+        $finfo = \mime_content_type($sourceAbs);
+
+        if ($finfo !== 'image/svg+xml') {
+            return '<!-- unable to open file: ' . $source . ' (' . $finfo . ') -->';
+        }
+
+        return $this->getInlineSvg($sourceAbs);
+    }
+
+    /**
+     * Get xml from SVG
+     *
+     * @param string $source
+     *
+     * @return string
+     */
+    protected function getInlineSvg($source)
+    {
+
+        if (!file_exists($source)) {
+            return '';
+        }
+
+        $svgContent = file_get_contents($source);
+        $svgContent = preg_replace('/<script[\s\S]*?>[\s\S]*?<\/script>/i', '', $svgContent);
+        // Disables the functionality to allow external entities to be loaded when parsing the XML, must be kept
+        $previousValueOfEntityLoader = libxml_disable_entity_loader(true);
+        $svgElement = simplexml_load_string($svgContent);
+        libxml_disable_entity_loader($previousValueOfEntityLoader);
+
+        // remove xml version tag
+        $domXml = dom_import_simplexml($svgElement);
+        if (isset($this->arguments['class'])) {
+            $domXml->setAttribute('class', $this->arguments['class']);
+        }
+        if (isset($this->arguments['width'])) {
+            $domXml->setAttribute('width', $this->arguments['width']);
+        }
+        if (isset($this->arguments['height'])) {
+            $domXml->setAttribute('height', $this->arguments['height']);
+        }
+        return $domXml->ownerDocument->saveXML($domXml->ownerDocument->documentElement);
+    }
+}

ext_localconf.php

@@ -9,3 +9,5 @@
 
 $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['cms/layout/class.tx_cms_layout.php']['tt_content_drawItem']['imageTextLink']
 	= \T3kit\themeT3kit\Hooks\ImageTextLinkPreviewRenderer::class;
+
+$GLOBALS['TYPO3_CONF_VARS']['SYS']['fluid']['namespaces']['t3kit'][] = 'T3kit\\themeT3kit\\ViewHelpers';