tag-related fixes

1. move tag sanitization to feedparser common item class
2. enforce length limit on tags when parsing
3. support multiple tags passed via one dc:subject and other such elements, parse them as a comma-separated list
4. sort resulting tag list to prevent different order between feed updates
5. remove some duplicate code related to tag validation
6. allow + symbol in tags

1 files changed, 4 insertions, 4 deletions

diff --git a/classes/feeditem/rss.php b/classes/feeditem/rss.php
index 916c73ec4..1f7953c51 100755
--- a/classes/feeditem/rss.php
+++ b/classes/feeditem/rss.php
@@ -97,19 +97,19 @@ class FeedItem_RSS extends FeedItem_Common {
 
 	function get_categories() {
 		$categories = $this->elem->getElementsByTagName("category");
-		$cats = array();
+		$cats = [];
 
 		foreach ($categories as $cat) {
-			array_push($cats, trim($cat->nodeValue));
+			array_push($cats, $cat->nodeValue);
 		}
 
 		$categories = $this->xpath->query("dc:subject", $this->elem);
 
 		foreach ($categories as $cat) {
-			array_push($cats, clean(trim($cat->nodeValue)));
+			array_push($cats, $cat->nodeValue);
 		}
 
-		return $cats;
+		return $this->normalize_categories($cats);
 	}
 
 	function get_enclosures() {