Hide too-new messages, and cycle between message, raw, and markdown views of messages.

git-svn-id: https://www.unprompted.com/svn/projects/tildefriends/trunk@4394 ed5197a5-7fde-0310-b194-c3ffbd925b24

apps/ssb/tf-tab-news-feed.js

@@ -70,7 +70,7 @@ class TfTabNewsFeedElement extends LitElement {
 					WITH news AS (SELECT messages.*
 					FROM messages
 					JOIN json_each(?) AS following ON messages.author = following.value
-					WHERE messages.timestamp > ?
+					WHERE messages.timestamp > ? AND messages.timestamp < ?
 					ORDER BY messages.timestamp DESC)
 					SELECT messages.*
 						FROM news
@@ -87,6 +87,11 @@ class TfTabNewsFeedElement extends LitElement {
 				[
 					JSON.stringify(this.following),
 					this.start_time,
+					/*
+					** Don't show messages more than a day into the future to prevent
+					** messages with far-future timestamps from staying at the top forever.
+					*/
+					new Date().valueOf() + 24 * 60 * 60 * 1000,
 				]);
 		}
 	}