bskyweb: fix post text expansion (#6016)

Co-authored-by: Hailey <[email protected]>
bluesky-social · Oct 31, 2024 · d5f8d82 · d5f8d82
1 parent aa6aad6
commit d5f8d82
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/bskyweb/cmd/bskyweb/formating.go b/bskyweb/cmd/bskyweb/formating.go
@@ -23,7 +23,9 @@ func ExpandPostText(post *appbsky.FeedPost) string {
 			}
 
 			// bail out if bounds checks fail
-			if int(facet.Index.ByteStart)+charsAdded > len(postText) || int(facet.Index.ByteEnd)+charsAdded > len(postText) {
+			if facet.Index.ByteStart > facet.Index.ByteEnd ||
+				int(facet.Index.ByteStart)+charsAdded > len(postText) ||
+				int(facet.Index.ByteEnd)+charsAdded > len(postText) {
 				return false
 			}
 			linkText := postText[int(facet.Index.ByteStart)+charsAdded : int(facet.Index.ByteEnd)+charsAdded]