Add 404 status handling in manual lookup and results pages (#1783)

Author: sy-records

manual-lookup.php

@@ -15,6 +15,10 @@
 
 if (!empty($_GET['scope']) && is_string($_GET['scope'])) {
     $scope = htmlspecialchars($_GET['scope'], ENT_QUOTES, 'UTF-8');
+
+    if ($scope == '404quickref') {
+        status_header(404);
+    }
 } else {
     $scope = '';
 }

results.php

@@ -3,6 +3,14 @@
 $_SERVER['BASE_PAGE'] = 'results.php';
 include __DIR__ . '/include/prepend.inc';
 
+if (!empty($_GET['p']) && is_string($_GET['p'])) {
+    $show = htmlspecialchars($_GET['p'], ENT_QUOTES, 'UTF-8');
+
+    if ($show == '404manual') {
+        status_header(404);
+    }
+}
+
 // HTTP status line is passed on, signifies an error
 site_header(
     'Search results',