Frontend.XF.GTK: throw exception when user is root

Author: Mersho

src/GWallet.Backend/Config.fs

@@ -47,6 +47,9 @@ module Config =
     let IsMacPlatform() =
         RuntimeInformation.IsOSPlatform OSPlatform.OSX
 
+    let IsLinuxPlatform() =
+        RuntimeInformation.IsOSPlatform OSPlatform.Linux
+
     let GetMonoVersion(): Option<Version> =
         FSharpUtil.option {
             // this gives None on MS.NET (e.g. UWP/WPF)

src/GWallet.Frontend.XF.Gtk/Program.fs

@@ -37,6 +37,9 @@ module Main =
     [<EntryPoint>]
     [<STAThread>]
     let main argv =
+        if GWallet.Backend.Config.IsLinuxPlatform() && Environment.UserName = "root" then
+            failwith "Running as root user is not supported"
+
         match argv.Length with
         | 0 ->
             NormalStartWithNoParameters()