1 files changed, 28 insertions, 8 deletions
diff --git a/MediaBrowser.Common.Implementations/Configuration/BaseConfigurationManager.cs b/MediaBrowser.Common.Implementations/Configuration/BaseConfigurationManager.cs
index 1b9146644..7bbc1abd7 100644
--- a/MediaBrowser.Common.Implementations/Configuration/BaseConfigurationManager.cs
+++ b/MediaBrowser.Common.Implementations/Configuration/BaseConfigurationManager.cs
@@ -9,6 +9,8 @@ using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 using System.Threading;
+using CommonIO;
+using MediaBrowser.Common.Extensions;
 
 namespace MediaBrowser.Common.Implementations.Configuration
 {
@@ -32,7 +34,7 @@ namespace MediaBrowser.Common.Implementations.Configuration
         /// Occurs when [configuration updating].
         /// </summary>
         public event EventHandler<ConfigurationUpdateEventArgs> NamedConfigurationUpdating;
-        
+
         /// <summary>
         /// Occurs when [named configuration updated].
         /// </summary>
@@ -54,6 +56,7 @@ namespace MediaBrowser.Common.Implementations.Configuration
         /// </summary>
         /// <value>The application paths.</value>
         public IApplicationPaths CommonApplicationPaths { get; private set; }
+        public readonly IFileSystem FileSystem;
 
         /// <summary>
         /// The _configuration loaded
@@ -87,8 +90,8 @@ namespace MediaBrowser.Common.Implementations.Configuration
             }
         }
 
-        private ConfigurationStore[] _configurationStores = {};
-        private IConfigurationFactory[] _configurationFactories = {};
+        private ConfigurationStore[] _configurationStores = { };
+        private IConfigurationFactory[] _configurationFactories = { };
 
         /// <summary>
         /// Initializes a new instance of the <see cref="BaseConfigurationManager" /> class.
@@ -96,10 +99,11 @@ namespace MediaBrowser.Common.Implementations.Configuration
         /// <param name="applicationPaths">The application paths.</param>
         /// <param name="logManager">The log manager.</param>
         /// <param name="xmlSerializer">The XML serializer.</param>
-        protected BaseConfigurationManager(IApplicationPaths applicationPaths, ILogManager logManager, IXmlSerializer xmlSerializer)
+        protected BaseConfigurationManager(IApplicationPaths applicationPaths, ILogManager logManager, IXmlSerializer xmlSerializer, IFileSystem fileSystem)
         {
             CommonApplicationPaths = applicationPaths;
             XmlSerializer = xmlSerializer;
+            FileSystem = fileSystem;
             Logger = logManager.GetLogger(GetType().Name);
 
             UpdateCachePath();
@@ -199,9 +203,19 @@ namespace MediaBrowser.Common.Implementations.Configuration
                 {
                     throw new DirectoryNotFoundException(string.Format("{0} does not exist.", newPath));
                 }
+
+                EnsureWriteAccess(newPath);
             }
         }
 
+        protected void EnsureWriteAccess(string path)
+        {
+            var file = Path.Combine(path, Guid.NewGuid().ToString());
+
+            FileSystem.WriteAllText(file, string.Empty);
+            FileSystem.DeleteFile(file);
+        }
+
         private readonly ConcurrentDictionary<string, object> _configurations = new ConcurrentDictionary<string, object>();
 
         private string GetConfigurationFile(string key)
@@ -215,9 +229,15 @@ namespace MediaBrowser.Common.Implementations.Configuration
             {
                 var file = GetConfigurationFile(key);
 
-                var configurationType = _configurationStores
-                    .First(i => string.Equals(i.Key, key, StringComparison.OrdinalIgnoreCase))
-                    .ConfigurationType;
+                var configurationInfo = _configurationStores
+                    .FirstOrDefault(i => string.Equals(i.Key, key, StringComparison.OrdinalIgnoreCase));
+
+                if (configurationInfo == null)
+                {
+                    throw new ResourceNotFoundException("Configuration with key " + key + " not found.");
+                }
+
+                var configurationType = configurationInfo.ConfigurationType;
 
                 lock (_configurationSyncLock)
                 {
@@ -272,7 +292,7 @@ namespace MediaBrowser.Common.Implementations.Configuration
                 NewConfiguration = configuration
 
             }, Logger);
-            
+
             _configurations.AddOrUpdate(key, configuration, (k, v) => configuration);
 
             var path = GetConfigurationFile(key);