From 4d657eccf32bc4a3541bfe3d930ec9c63d3dac1e Mon Sep 17 00:00:00 2001
From: Leander <leander.schmedemann@gmail.com>
Date: Mon, 3 Apr 2017 09:53:08 +0200
Subject: [PATCH] T201704030953

---
 Config.txt   | 3 ++-
 Database.php | 2 ++
 start.php    | 8 +++++---
 3 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/Config.txt b/Config.txt
index 6f058b0..489039f 100644
--- a/Config.txt
+++ b/Config.txt
@@ -11,4 +11,5 @@
 
 = start.php =
 12101 - 0 questions wanted, no game without a question!
-12102 - More questions wanted then existing
\ No newline at end of file
+12102 - More questions wanted then existing
+12103 - User ID not specified
\ No newline at end of file
diff --git a/Database.php b/Database.php
index 7896925..e3b7fc7 100644
--- a/Database.php
+++ b/Database.php
@@ -61,6 +61,8 @@ class Database
                 return 'A game without a question is not possible. Please select new game length.';
             case 12102:
                 return 'We only have '.$values[0].' questions. Please select new game length.';
+            case 12103:
+                return 'No user ID specified. Sebastian, please fix the app.';
             default:
                 return 'An unknown error occurred.';
         }
diff --git a/start.php b/start.php
index 8862a2d..b7a6722 100644
--- a/start.php
+++ b/start.php
@@ -10,8 +10,8 @@
     $data = '';
     $error = 0;
     $values = null;
-    $uid = $_GET['uid'];
-    $length = $_GET['length'];
+    $uid = isset($_GET['uid']) ? $_GET['uid'] : '';
+    $length = isset($_GET['length']) ? $_GET['length'] : '';
     $length = (($length === '0') || ($length && gettype(+$length) == 'integer')) ? +$_GET['length'] : 10;
     $db = new Database();
     $questions_count = $db->query('SELECT COUNT(*) FROM "Questions"')['data'][0]['count'];
@@ -23,7 +23,9 @@
         return array_slice($numbers, 0, $count-1);
     }
 
-    if($length == 0) {
+    if($uid = '') {
+        $error = 12103;
+    } else if($length == 0) {
         $error = 12101;
     } else if($length > $questions_count) {
         $error = 12102;