From 13a4045047845f81b5a6113fc36730f73929f079 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Tim=20D=C3=BCsterhus?= <duesterhus@woltlab.com>
Date: Fri, 7 Aug 2020 13:55:49 +0200
Subject: [PATCH] Implement isContentAuthor for article comments

---
 .../files/lib/page/AbstractArticlePage.class.php |  3 ++-
 .../manager/ArticleCommentManager.class.php      | 16 ++++++++++++++++
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/wcfsetup/install/files/lib/page/AbstractArticlePage.class.php b/wcfsetup/install/files/lib/page/AbstractArticlePage.class.php
index 32befc7cde..95340a1824 100644
--- a/wcfsetup/install/files/lib/page/AbstractArticlePage.class.php
+++ b/wcfsetup/install/files/lib/page/AbstractArticlePage.class.php
@@ -7,6 +7,7 @@ use wcf\data\article\ArticleAction;
 use wcf\data\article\ArticleEditor;
 use wcf\data\article\ViewableArticle;
 use wcf\data\tag\Tag;
+use wcf\system\cache\runtime\ViewableArticleRuntimeCache;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
 use wcf\system\exception\IllegalLinkException;
 use wcf\system\exception\PermissionDeniedException;
@@ -83,7 +84,7 @@ abstract class AbstractArticlePage extends AbstractPage {
 			throw new IllegalLinkException();
 		}
 		
-		$this->article = ViewableArticle::getArticle($this->articleContent->articleID, false);
+		$this->article = ViewableArticleRuntimeCache::getInstance()->getObject($this->articleContent->articleID);
 		$this->article->getDiscussionProvider()->setArticleContent($this->articleContent->getDecoratedObject());
 		$this->category = $this->article->getCategory();
 		
diff --git a/wcfsetup/install/files/lib/system/comment/manager/ArticleCommentManager.class.php b/wcfsetup/install/files/lib/system/comment/manager/ArticleCommentManager.class.php
index de8632b0f4..cb1592b260 100644
--- a/wcfsetup/install/files/lib/system/comment/manager/ArticleCommentManager.class.php
+++ b/wcfsetup/install/files/lib/system/comment/manager/ArticleCommentManager.class.php
@@ -5,8 +5,11 @@ use wcf\data\article\content\ArticleContentList;
 use wcf\data\article\ArticleEditor;
 use wcf\data\comment\response\CommentResponseList;
 use wcf\data\comment\CommentList;
+use wcf\data\comment\response\CommentResponse;
+use wcf\data\DatabaseObjectDecorator;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\system\cache\runtime\UserProfileRuntimeCache;
+use wcf\system\cache\runtime\ViewableArticleRuntimeCache;
 use wcf\system\like\IViewableLikeProvider;
 use wcf\system\WCF;
 
@@ -208,4 +211,17 @@ class ArticleCommentManager extends AbstractCommentManager implements IViewableL
 			}
 		}
 	}
+	
+	/**
+	 * @inheritDoc
+	 */
+	public function isContentAuthor($commentOrResponse) {
+		if ($commentOrResponse instanceof CommentResponse || ($commentOrResponse instanceof DatabaseObjectDecorator && $commentOrResponse->getDecoratedObject() instanceof CommentResponse)) {
+			$article = ViewableArticleRuntimeCache::getInstance()->getObject($commentOrResponse->getComment()->objectID);
+		}
+		else {
+			$article = ViewableArticleRuntimeCache::getInstance()->getObject($commentOrResponse->objectID);
+		}
+		return $article->userID == $commentOrResponse->userID;
+	}
 }
-- 
2.20.1