guid and urls should not contain low/high characters

It looks like SimplePie does not always filter everything
Having a character not in latin1 would create MySQL collate errors

1 files changed, 3 insertions, 1 deletions

diff --git a/app/Controllers/feedController.php b/app/Controllers/feedController.php
index 8751d2fff..d4a6c9955 100755
--- a/app/Controllers/feedController.php
+++ b/app/Controllers/feedController.php
@@ -314,7 +314,9 @@ class FreshRSS_feed_Controller extends Minz_ActionController {
 			if (count($entries) > 0) {
 				$newGuids = array();
 				foreach ($entries as $entry) {
-					$newGuids[] = $entry->guid();
+					$guid = $entry->guid();
+					$guid = filter_var($guid, FILTER_DEFAULT, FILTER_FLAG_STRIP_LOW | FILTER_FLAG_STRIP_HIGH);
+					$newGuids[] = $guid;
 				}
 				// For this feed, check existing GUIDs already in database.
 				$existingHashForGuids = $entryDAO->listHashForFeedGuids($feed->id(), $newGuids);