Adds an interface to list files in the static directories

TGServerService/Config.cs

@@ -119,5 +119,26 @@ namespace TGServerService
 				return e.ToString();
 			}
 		}
+
+		[OperationBehavior(Impersonation = ImpersonationOption.Required)]
+		public IList<string> ListStaticDirectory(string subDir, out string error)
+		{
+			try
+			{
+				DirectoryInfo dirToEnum = new DirectoryInfo(Path.Combine(StaticDirs, subDir ?? ""));
+				var result = new List<string>();
+				foreach (var I in dirToEnum.GetFiles())
+					result.Add(I.Name);
+				foreach (var I in dirToEnum.GetDirectories())
+					result.Add("@" + I.Name);
+				error = null;
+				return result;
+			}
+			catch (Exception e)
+			{
+				error = e.ToString();
+				return null;
+			}
+		}
 	}
 }

TGServiceInterface/Config.cs

@@ -18,6 +18,16 @@ namespace TGServiceInterface
 		[OperationContract]
 		string ServerDirectory();
 
+		/// <summary>
+		/// Returns the file contents of the specified server directory
+		/// Subdirectories will be prefixed with '@'
+		/// </summary>
+		/// <param name="subpath">Subdirectory to enumerate, enumerates the root directory if null</param>
+		/// <param name="error">null on success, error message on failure</param>
+		/// <returns>A list of files in the enumerated static directory on success, null on failure</returns>
+		[OperationContract]
+		IList<string> ListStaticDirectory(string subpath, out string error);
+
 		/// <summary>
 		/// For when you really just need to see the raw data of the config
 		/// </summary>