From 90f72f15557ac4912009b74b52fc387a62a04286 Mon Sep 17 00:00:00 2001
From: Ryan Kistner <azuisleet@gmail.com>
Date: Wed, 23 Jan 2013 16:35:44 -0700
Subject: [PATCH] DepotDownloader: added some error handling

--HG--
extra : rebase_source : f849aa26ef59c3eb260b0727ab0f9e7d36700fab
---
 DepotDownloader/CDRManager.cs        | 3 +++
 DepotDownloader/ContentDownloader.cs | 6 ++++++
 2 files changed, 9 insertions(+)

diff --git a/DepotDownloader/CDRManager.cs b/DepotDownloader/CDRManager.cs
index 22ffd2de..e2e844d2 100644
--- a/DepotDownloader/CDRManager.cs
+++ b/DepotDownloader/CDRManager.cs
@@ -269,6 +269,9 @@ namespace DepotDownloader
             else if ( Util.IsMacOSX() )
                 platformStr = "macos";
 
+            if (appInfoBlob.FileSystems == null)
+                return depotIDs;
+
             foreach ( var blobField in appInfoBlob.FileSystems )
             {
                 string depotPlatform = blobField.Platform;
diff --git a/DepotDownloader/ContentDownloader.cs b/DepotDownloader/ContentDownloader.cs
index ee262a5f..baa13d24 100644
--- a/DepotDownloader/ContentDownloader.cs
+++ b/DepotDownloader/ContentDownloader.cs
@@ -645,6 +645,12 @@ namespace DepotDownloader
                 }
 
                 steam3.RequestDepotKey( ( uint )depotId, ( uint )appId );
+                if (!steam3.DepotKeys.ContainsKey((uint)depotId))
+                {
+                    Console.WriteLine("No valid depot key for {0}, unable to download.", depotId);
+                    return null;
+                }
+
                 byte[] depotKey = steam3.DepotKeys[(uint)depotId];
 
                 var info = new DepotDownloadInfo3( depotId, manifestID, installDir, contentName );