Linux admin mode

.vscode/settings.json

@@ -0,0 +1,3 @@
+{
+    "dotnet.defaultSolution": "src/FileTime.sln"
+}

src/AppCommon/FileTime.App.Core/Configuration/MainConfiguration.cs

@@ -1,3 +1,4 @@
+using System.Runtime.InteropServices;
 using FileTime.App.Core.UserCommand;
 using FileTime.Providers.LocalAdmin;
 using GeneralInputKey;
@@ -12,9 +13,12 @@ public class MainConfiguration
 
     static MainConfiguration()
     {
+        var serverFileName = RuntimeInformation.IsOSPlatform(OSPlatform.Windows)
+            ? "FileTime.Server.exe"
+            : "FileTime.Server";
         Configuration = new()
         {
-            {AdminElevationConfiguration.SectionName + ":" + nameof(AdminElevationConfiguration.ServerExecutablePath), "FileTime.Server.exe"},
+            {AdminElevationConfiguration.SectionName + ":" + nameof(AdminElevationConfiguration.ServerExecutablePath), serverFileName},
         };
 
         PopulateDefaultEditorPrograms(Configuration);

src/ConsoleApp/FileTime.ConsoleUI.App/MainConsoleConfiguration.cs

@@ -1,10 +1,17 @@
-namespace FileTime.ConsoleUI.App;
+using FileTime.Providers.LocalAdmin;
+
+namespace FileTime.ConsoleUI.App;
 
 public class MainConsoleConfiguration
 {
     public static Dictionary<string, string?> Configuration { get; }
     static MainConsoleConfiguration()
     {
-        Configuration = new();
+        Configuration = new()
+        {
+            {
+                AdminElevationConfiguration.SectionName + ":" + nameof(AdminElevationConfiguration.LinuxElevationTool), "sudo"
+            },
+        };
     }
 }

src/GuiApp/Avalonia/FileTime.GuiApp.App/Configuration/MainGuiConfiguration.cs

@@ -0,0 +1,18 @@
+using FileTime.Providers.LocalAdmin;
+
+namespace FileTime.GuiApp.App.Configuration;
+
+public class MainGuiConfiguration
+{
+    
+    public static Dictionary<string, string?> Configuration { get; }
+    static MainGuiConfiguration()
+    {
+        Configuration = new()
+        {
+            {
+                AdminElevationConfiguration.SectionName + ":" + nameof(AdminElevationConfiguration.LinuxElevationTool), "pkexec"
+            },
+        };
+    }
+}

src/GuiApp/Avalonia/FileTime.GuiApp.App/FileTime.GuiApp.App.csproj

@@ -55,6 +55,7 @@
     <ProjectReference Include="..\FileTime.GuiApp.App.Abstractions\FileTime.GuiApp.App.Abstractions.csproj" />
     <ProjectReference Include="..\FileTime.GuiApp.DesignPreview\FileTime.GuiApp.DesignPreview.csproj" />
     <ProjectReference Include="..\FileTime.GuiApp.Font.Abstractions\FileTime.GuiApp.Font.Abstractions.csproj" />
+
   </ItemGroup>
 
 

src/GuiApp/Avalonia/FileTime.GuiApp/Startup.cs

@@ -5,6 +5,7 @@ using FileTime.App.Core.Configuration;
 using FileTime.App.Core.Services;
 using FileTime.App.Core.ViewModels;
 using FileTime.Core.Interactions;
+using FileTime.GuiApp.App.Configuration;
 using FileTime.GuiApp.CustomImpl.ViewModels;
 using FileTime.GuiApp.App.IconProviders;
 using FileTime.GuiApp.App.InstanceManagement;
@@ -26,6 +27,7 @@ public static class Startup
     {
         var configurationBuilder = new ConfigurationBuilder()
             .AddInMemoryCollection(MainConfiguration.Configuration)
+            .AddInMemoryCollection(MainGuiConfiguration.Configuration)
             .AddJsonFile("appsettings.json", optional: true)
             .AddJsonFile($"appsettings.{Program.EnvironmentName}.json", true)
             .AddJsonFile("appsettings.Local.json", optional: true);

src/Providers/FileTime.Providers.LocalAdmin.Abstractions/AdminElevationConfiguration.cs

@@ -4,6 +4,7 @@ public class AdminElevationConfiguration
 {
     public const string SectionName = "AdminElevation";
     public string ServerExecutablePath { get; set; }
+    public string LinuxElevationTool { get; set; }
     public int? ServerPort { get; set; }
     public bool? StartProcess { get; set; }
 }

src/Providers/FileTime.Providers.LocalAdmin/AdminElevationManager.cs

@@ -1,6 +1,7 @@
 using System.ComponentModel;
 using System.Diagnostics;
 using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
 using FileTime.App.Core.Services;
 using FileTime.Core.Interactions;
 using FileTime.Core.Timeline;
@@ -73,30 +74,28 @@ public class AdminElevationManager : IAdminElevationManager, INotifyPropertyChan
             var port = _configuration.CurrentValue.ServerPort;
             _logger.LogTrace("Admin server port is {Port}", port is null ? "<not set>" : $"{port}");
             if (StartProcess || port is null)
-            {
+            {                
                 var portFileName = Path.GetTempFileName();
-                var process = new Process
+                File.Delete(portFileName);
-                {
+                
-                    StartInfo = new()
+                var process = RuntimeInformation.IsOSPlatform(OSPlatform.Windows) 
-                    {
+                    ? CreateWindowsAdminProcess(portFileName)
-                        FileName = _configuration.CurrentValue.ServerExecutablePath,
+                    : CreateLinuxAdminProcess(portFileName);
-                        ArgumentList =
-                        {
-                            "--PortWriter:FileName",
-                            portFileName
-                        },
-                        UseShellExecute = true,
-                        Verb = "runas"
-                    },
-                    EnableRaisingEvents = true
-                };
                 process.Exited += ProcessExitHandler;
                 process.Start();
                 _adminProcess = process;
 
                 //TODO: timeout
                 while (!File.Exists(portFileName) || new FileInfo(portFileName).Length == 0)
+                {
                     await Task.Delay(10);
+                    if (process.HasExited)
+                    {
+                        throw new Exception(
+                            $"Server process exited with code {process.ExitCode} without creating the port file"
+                        );
+                    }
+                }
 
                 var content = await File.ReadAllLinesAsync(portFileName);
                 if (int.TryParse(content.FirstOrDefault(), out var parsedPort))
@@ -132,6 +131,42 @@ public class AdminElevationManager : IAdminElevationManager, INotifyPropertyChan
         }
     }
 
+    private Process CreateWindowsAdminProcess(string portFileName) 
+        => new()
+        {
+            StartInfo = new()
+            {
+                FileName = _configuration.CurrentValue.ServerExecutablePath,
+                ArgumentList =
+                {
+                    "--PortWriter:FileName",
+                    portFileName
+                },
+                UseShellExecute = true,
+                Verb = "runas"
+            },
+            EnableRaisingEvents = true
+        };
+
+    private Process CreateLinuxAdminProcess(string portFileName)
+    {
+        return new Process
+        {
+            StartInfo = new()
+            {
+                FileName = _configuration.CurrentValue.LinuxElevationTool,
+                ArgumentList =
+                {
+                    _configuration.CurrentValue.ServerExecutablePath,
+                    "--PortWriter:FileName",
+                    portFileName
+                },
+                CreateNoWindow = true
+            },
+            EnableRaisingEvents = true
+        };
+    }
+
     //Note: this does not have to return a task
     public Task<IRemoteContentProvider> GetRemoteContentProviderAsync()
     {

src/Server/FileTime.Server.Web/PortWriterService.cs

@@ -44,7 +44,6 @@ public class PortWriterService : IHostedService
                 return;
             }
 
-            using var tempFileStream = File.CreateText(filename);
             var address = GetAddress();
             if (address is null)
             {
@@ -59,7 +58,23 @@ public class PortWriterService : IHostedService
                 return;
             }
 
+            _logger.LogInformation("Writing port to {PortFile}", filename);
+            using var tempFileStream = File.CreateText(filename);
             tempFileStream.Write(port.ToString());
+
+            Task.Run(async () =>
+            {
+                await Task.Delay(5000);
+                try
+                {
+                    _logger.LogInformation("Deleting port file {PortFile}", filename);
+                    File.Delete(filename);
+                }
+                catch (Exception e)
+                {
+                    _logger.LogError(e, "Error while deleting port file {PortFile}", filename);
+                }
+            });
         }
         catch (Exception ex)
         {