From a16d7a5d6481bd6d1d337a114bb37060c51b0052 Mon Sep 17 00:00:00 2001
From: Andrew Dolgov <fox@madoka.volgo-balt.ru>
Date: Thu, 28 Feb 2013 16:47:55 +0400
Subject: [PATCH] af_redditimgur: do not process content multiple times

---
 plugins/af_redditimgur/init.php | 50 ++++++++++++++++++---------------
 1 file changed, 28 insertions(+), 22 deletions(-)

diff --git a/plugins/af_redditimgur/init.php b/plugins/af_redditimgur/init.php
index a258f3c08..4425fe1c0 100644
--- a/plugins/af_redditimgur/init.php
+++ b/plugins/af_redditimgur/init.php
@@ -18,40 +18,46 @@ class Af_RedditImgur extends Plugin {
 	}
 
 	function hook_article_filter($article) {
+		$owner_uid = $article["owner_uid"];
 
 		if (strpos($article["link"], "reddit.com/r/") !== FALSE) {
-			$doc = new DOMDocument();
-			@$doc->loadHTML($article["content"]);
+			if (strpos($article["plugin_data"], "redditimgur,$owner_uid:") === FALSE) {
+				$doc = new DOMDocument();
+				@$doc->loadHTML($article["content"]);
 
-			if ($doc) {
-				$xpath = new DOMXPath($doc);
-				$entries = $xpath->query('(//a[@href]|//img[@src])');
+				if ($doc) {
+					$xpath = new DOMXPath($doc);
+					$entries = $xpath->query('(//a[@href]|//img[@src])');
 
-				foreach ($entries as $entry) {
-					if ($entry->hasAttribute("href")) {
-						if (preg_match("/\.(jpg|jpeg|gif|png)$/i", $entry->getAttribute("href"))) {
+					foreach ($entries as $entry) {
+						if ($entry->hasAttribute("href")) {
+							if (preg_match("/\.(jpg|jpeg|gif|png)$/i", $entry->getAttribute("href"))) {
 
-						 	$img = $doc->createElement('img');
-							$img->setAttribute("src", $entry->getAttribute("href"));
+							 	$img = $doc->createElement('img');
+								$img->setAttribute("src", $entry->getAttribute("href"));
 
-							$entry->parentNode->replaceChild($img, $entry);
+								$entry->parentNode->replaceChild($img, $entry);
+							}
+						}
+
+						// remove tiny thumbnails
+						if ($entry->hasAttribute("src")) {
+							if ($entry->parentNode && $entry->parentNode->parentNode) {
+								$entry->parentNode->parentNode->removeChild($entry->parentNode);
+							}
 						}
 					}
 
-					// remove tiny thumbnails
-					if ($entry->hasAttribute("src")) {
-						if ($entry->parentNode && $entry->parentNode->parentNode) {
-							$entry->parentNode->parentNode->removeChild($entry->parentNode);
-						}
+					$node = $doc->getElementsByTagName('body')->item(0);
+
+					if ($node) {
+						$article["content"] = $doc->saveXML($node, LIBXML_NOEMPTYTAG);
+						$article["plugin_data"] = "redditimgur,$owner_uid:" . $article["plugin_data"];
 					}
 				}
-
-				$node = $doc->getElementsByTagName('body')->item(0);
-
-				if ($node) {
-					$article["content"] = $doc->saveXML($node, LIBXML_NOEMPTYTAG);
-				}
 			}
+		} else if (isset($article["stored"]["content"])) {
+			$article["content"] = $article["stored"]["content"];
 		}
 
 		return $article;