From 4411cb1181a482e537e6a3309cf6ecbafa3668be Mon Sep 17 00:00:00 2001
From: Matthias Schmidt <gravatronics@live.com>
Date: Sun, 27 Jan 2019 13:06:35 +0100
Subject: [PATCH] Allow media links generated in the ACP to point to the
 frontend

---
 com.woltlab.wcf/templates/mediaBBCodeTag.tpl  |  4 +-
 .../files/acp/templates/mediaBBCodeTag.tpl    | 11 +++
 .../bbcode/WoltLabSuiteMediaBBCode.class.php  | 83 ++++++++++++++++---
 3 files changed, 85 insertions(+), 13 deletions(-)
 create mode 100644 wcfsetup/install/files/acp/templates/mediaBBCodeTag.tpl

diff --git a/com.woltlab.wcf/templates/mediaBBCodeTag.tpl b/com.woltlab.wcf/templates/mediaBBCodeTag.tpl
index e80ee2c1ed..9d75f479d5 100644
--- a/com.woltlab.wcf/templates/mediaBBCodeTag.tpl
+++ b/com.woltlab.wcf/templates/mediaBBCodeTag.tpl
@@ -1,8 +1,8 @@
 <span class="mediaBBCode{if $float != 'none'} messageFloatObject{$float|ucfirst}{/if}">
 	{if $thumbnailSize != 'original'}
-		<a href="{$media->getLink()}" class="embeddedAttachmentLink jsImageViewer"><img src="{$media->getThumbnailLink($thumbnailSize)}" alt="{$media->altText}" title="{$media->title}" data-width="{@$media->getThumbnailWidth($thumbnailSize)}" data-height="{@$media->getThumbnailHeight($thumbnailSize)}"></a>
+		<a href="{$mediaLink}" class="embeddedAttachmentLink jsImageViewer"><img src="{$thumbnailLink}" alt="{$media->altText}" title="{$media->title}" data-width="{@$media->getThumbnailWidth($thumbnailSize)}" data-height="{@$media->getThumbnailHeight($thumbnailSize)}"></a>
 	{else}
-		<img src="{$media->getLink()}" alt="{$media->altText}" title="{$media->title}" data-width="{@$media->width}" data-height="{@$media->height}">
+		<img src="{$mediaLink}" alt="{$media->altText}" title="{$media->title}" data-width="{@$media->width}" data-height="{@$media->height}">
 	{/if}
 	
 	{if $media->caption}
diff --git a/wcfsetup/install/files/acp/templates/mediaBBCodeTag.tpl b/wcfsetup/install/files/acp/templates/mediaBBCodeTag.tpl
new file mode 100644
index 0000000000..9d75f479d5
--- /dev/null
+++ b/wcfsetup/install/files/acp/templates/mediaBBCodeTag.tpl
@@ -0,0 +1,11 @@
+<span class="mediaBBCode{if $float != 'none'} messageFloatObject{$float|ucfirst}{/if}">
+	{if $thumbnailSize != 'original'}
+		<a href="{$mediaLink}" class="embeddedAttachmentLink jsImageViewer"><img src="{$thumbnailLink}" alt="{$media->altText}" title="{$media->title}" data-width="{@$media->getThumbnailWidth($thumbnailSize)}" data-height="{@$media->getThumbnailHeight($thumbnailSize)}"></a>
+	{else}
+		<img src="{$mediaLink}" alt="{$media->altText}" title="{$media->title}" data-width="{@$media->width}" data-height="{@$media->height}">
+	{/if}
+	
+	{if $media->caption}
+		<span class="mediaBBCodeCaption">{$media->caption}</span>
+	{/if}
+</span>
diff --git a/wcfsetup/install/files/lib/system/bbcode/WoltLabSuiteMediaBBCode.class.php b/wcfsetup/install/files/lib/system/bbcode/WoltLabSuiteMediaBBCode.class.php
index 67eb80f9b8..20d059ee24 100644
--- a/wcfsetup/install/files/lib/system/bbcode/WoltLabSuiteMediaBBCode.class.php
+++ b/wcfsetup/install/files/lib/system/bbcode/WoltLabSuiteMediaBBCode.class.php
@@ -2,6 +2,7 @@
 namespace wcf\system\bbcode;
 use wcf\data\media\ViewableMedia;
 use wcf\system\message\embedded\object\MessageEmbeddedObjectManager;
+use wcf\system\request\LinkHandler;
 use wcf\system\WCF;
 use wcf\util\StringUtil;
 
@@ -15,6 +16,13 @@ use wcf\util\StringUtil;
  * @since       3.0
  */
 class WoltLabSuiteMediaBBCode extends AbstractBBCode {
+	/**
+	 * forces media links to be linked to the frontend
+	 * after it has been set to `true`, it should be set to `false` again as soon as possible
+	 * @var	boolean
+	 */
+	public static $forceFrontendLinks = false;
+	
 	/**
 	 * @inheritDoc
 	 */
@@ -27,22 +35,75 @@ class WoltLabSuiteMediaBBCode extends AbstractBBCode {
 		/** @var ViewableMedia $media */
 		$media = MessageEmbeddedObjectManager::getInstance()->getObject('com.woltlab.wcf.media', $mediaID);
 		if ($media !== null && $media->isAccessible()) {
-			if ($media->isImage) {
-				$thumbnailSize = (!empty($openingTag['attributes'][1])) ? $openingTag['attributes'][1] : 'original';
-				$float = (!empty($openingTag['attributes'][2])) ? $openingTag['attributes'][2] : 'none';
-				
-				WCF::getTPL()->assign([
-					'float' => $float,
-					'media' => $media->getLocalizedVersion(MessageEmbeddedObjectManager::getInstance()->getActiveMessageLanguageID()),
-					'thumbnailSize' => $thumbnailSize
-				]);
+			if ($parser->getOutputType() == 'text/html') {
+				if ($media->isImage) {
+					$thumbnailSize = (!empty($openingTag['attributes'][1])) ? $openingTag['attributes'][1] : 'original';
+					$float = (!empty($openingTag['attributes'][2])) ? $openingTag['attributes'][2] : 'none';
+					
+					WCF::getTPL()->assign([
+						'float' => $float,
+						'media' => $media->getLocalizedVersion(MessageEmbeddedObjectManager::getInstance()->getActiveMessageLanguageID()),
+						'thumbnailSize' => $thumbnailSize
+					]);
+					
+					return WCF::getTPL()->fetch('mediaBBCodeTag', 'wcf', [
+						'mediaLink' => $this->getLink($media),
+						'thumbnailLink' => $thumbnailSize !== 'original' ? $this->getThumbnailLink($media, $thumbnailSize) : ''
+					]);
+				}
 				
-				return WCF::getTPL()->fetch('mediaBBCodeTag', 'wcf');
+				return StringUtil::getAnchorTag($this->getLink($media), $media->getTitle());
+			}
+			else if ($parser->getOutputType() == 'text/simplified-html') {
+				return StringUtil::getAnchorTag($this->getLink($media), $media->getTitle());
 			}
 			
-			return StringUtil::getAnchorTag($media->getLink(), $media->getTitle());
+			return StringUtil::encodeHTML($this->getLink($media));
 		}
 		
 		return '';
 	}
+	
+	/**
+	 * Returns the link to the given media file (while considering the value of `$forceFrontendLinks`).
+	 * 
+	 * @param	ViewableMedia	$media		linked media file
+	 * @return	string				link to media file
+	 */
+	protected function getLink(ViewableMedia $media) {
+		if (self::$forceFrontendLinks) {
+			return LinkHandler::getInstance()->getLink('Media', [
+				'forceFrontend' => 'true',
+				'object' => $media
+			]);
+		}
+		
+		return $media->getLink();
+	}
+	
+	/**
+	 * Returns the thumbnail link to the given media file (while considering the value of `$forceFrontendLinks`).
+	 * 
+	 * @param	ViewableMedia	$media		linked media file
+	 * @param	string	$thumbnailSize		thumbnail size
+	 * @return	string				link to media thumbnail
+	 */
+	protected function getThumbnailLink(ViewableMedia $media, $thumbnailSize) {
+		// use `Media::getThumbnailLink()` to validate thumbnail size
+		$thumbnailLink = $media->getThumbnailLink($thumbnailSize);
+		
+		if (self::$forceFrontendLinks) {
+			if (!$this->{$thumbnailSize.'ThumbnailType'}) {
+				return $this->getLink($media);
+			}
+			
+			return LinkHandler::getInstance()->getLink('Media', [
+				'forceFrontend' => 'true',
+				'object' => $media,
+				'thumbnail' => $thumbnailSize
+			]);
+		}
+		
+		return $thumbnailLink;
+	}
 }
-- 
2.20.1