From 6285c3c9035ce3fdbe49b2b2a7e3accb005dcc5c Mon Sep 17 00:00:00 2001
From: joshuaruesweg <ruesweg@woltlab.com>
Date: Fri, 26 Feb 2021 16:16:03 +0100
Subject: [PATCH] Add unfurl url output classes

---
 .../node/HtmlOutputNodeProcessor.class.php    |  2 +
 .../node/HtmlOutputUnfurlUrlNode.class.php    | 52 +++++++++++++++++++
 2 files changed, 54 insertions(+)
 create mode 100644 wcfsetup/install/files/lib/system/html/output/node/HtmlOutputUnfurlUrlNode.class.php

diff --git a/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputNodeProcessor.class.php b/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputNodeProcessor.class.php
index 8025476188..e8c13dc5ea 100644
--- a/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputNodeProcessor.class.php
+++ b/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputNodeProcessor.class.php
@@ -94,6 +94,8 @@ class HtmlOutputNodeProcessor extends AbstractHtmlNodeProcessor
 
         $this->invokeHtmlNode(new HtmlOutputNodeWoltlabMetacode());
 
+        $this->invokeHtmlNode(new HtmlOutputUnfurlUrlNode());
+
         // dynamic node handlers
         $this->invokeNodeHandlers('wcf\system\html\output\node\HtmlOutputNode', ['woltlab-metacode']);
 
diff --git a/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputUnfurlUrlNode.class.php b/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputUnfurlUrlNode.class.php
new file mode 100644
index 0000000000..4a82c63b62
--- /dev/null
+++ b/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputUnfurlUrlNode.class.php
@@ -0,0 +1,52 @@
+<?php
+
+namespace wcf\system\html\output\node;
+
+use wcf\system\html\node\AbstractHtmlNodeProcessor;
+use wcf\system\html\node\HtmlNodeUnfurlLink;
+use wcf\system\message\embedded\object\MessageEmbeddedObjectManager;
+use wcf\util\StringUtil;
+
+/**
+ * Node class to replace unfurled urls in the output.
+ *
+ * @author      Joshua Ruesweg
+ * @copyright   2001-2021 WoltLab GmbH
+ * @license     GNU Lesser General Public License <http://opensource.org/licenses/lgpl-license.php>
+ * @package     WoltLabSuite\Core\System\Html\Output\Node
+ * @since       5.4
+ */
+class HtmlOutputUnfurlUrlNode extends AbstractHtmlOutputNode
+{
+    /**
+     * @inheritDoc
+     */
+    protected $tagName = 'a';
+    
+    /**
+     * @inheritDoc
+     */
+    public function process(array $elements, AbstractHtmlNodeProcessor $htmlNodeProcessor)
+    {
+        /** @var \DOMElement $element */
+        foreach ($elements as $element) {
+            $attribute = $element->getAttribute(HtmlNodeUnfurlLink::UNFURL_URL_ID_ATTRIBUTE_NAME);
+            if ($this->outputType === 'text/html'
+                && !empty($attribute)
+                && MessageEmbeddedObjectManager::getInstance()->getObject('com.woltlab.wcf.unfurlUrl', $attribute) !== null) {
+                $nodeIdentifier = StringUtil::getRandomID();
+                $htmlNodeProcessor->addNodeData($this, $nodeIdentifier, ['urlId' => $attribute]);
+                
+                $htmlNodeProcessor->renameTag($element, 'wcfNode-' . $nodeIdentifier);
+            }
+        }
+    }
+    
+    /**
+     * @inheritDoc
+     */
+    public function replaceTag(array $data)
+    {
+        return MessageEmbeddedObjectManager::getInstance()->getObject('com.woltlab.wcf.unfurlUrl', $data['urlId'])->render();
+    }
+}
-- 
2.20.1