From 6a068d1bb1c0fc9d8cdefffef39ee78c450de445 Mon Sep 17 00:00:00 2001
From: Brion Vibber <brion@users.mediawiki.org>
Date: Mon, 12 Jun 2006 05:16:12 +0000
Subject: [PATCH] * Avoid some notices in page history with bad input

---
 RELEASE-NOTES            | 2 ++
 includes/PageHistory.php | 6 ++++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/RELEASE-NOTES b/RELEASE-NOTES
index b2f207aefc..eceb7dd795 100644
--- a/RELEASE-NOTES
+++ b/RELEASE-NOTES
@@ -473,6 +473,8 @@ it from source control: http://www.mediawiki.org/wiki/Download_from_SVN
 * Update to Vlax Romany localization (rmy)
 * Update to Latin translation (la)
 * Update to Dutch translation (nl)
+* Avoid some notices in page history with bad input
+
 
 == Compatibility ==
 
diff --git a/includes/PageHistory.php b/includes/PageHistory.php
index 7afd629ee0..0dbf356b9d 100644
--- a/includes/PageHistory.php
+++ b/includes/PageHistory.php
@@ -106,6 +106,7 @@ class PageHistory {
 		 * "go=last" means to jump to the last history page.
 		 */
 		if (($gowhere = $wgRequest->getText("go")) !== NULL) {
+			$gourl = null;
 			switch ($gowhere) {
 			case "first":
 				if (($lastid = $this->getLastOffsetForPaging($this->mTitle->getArticleID(), $limit)) === NULL)
@@ -113,8 +114,6 @@ class PageHistory {
 				$gourl = $wgTitle->getLocalURL("action=history&limit={$limit}&offset=".
 						wfTimestamp(TS_MW, $lastid));
 				break;
-			default:
-				$gourl = NULL;
 			}
 
 			if (!is_null($gourl)) {
@@ -529,6 +528,9 @@ class PageHistory {
 		if( count( $revisions ) ) {
 			$latestShown = wfTimestamp(TS_MW, $revisions[0]->rev_timestamp);
 			$earliestShown = wfTimestamp(TS_MW, $revisions[count($revisions) - 1]->rev_timestamp);
+		} else {
+			$latestShown = null;
+			$earliestShown = null;
 		}
 
 		/* Don't announce the limit everywhere if it's the default */
-- 
2.20.1