├── kiosk-server
    ├── Pages
    │   ├── Blank.razor.css
    │   ├── kiosk.razor.css
    │   ├── Blank.razor
    │   ├── Blank.razor.cs
    │   ├── _Host.cshtml
    │   ├── Error.cshtml.cs
    │   ├── Index.razor
    │   ├── Error.cshtml
    │   ├── Kiosk.razor
    │   ├── Kiosk.razor.cs
    │   ├── _Layout.cshtml
    │   ├── Index.razor.cs
    │   ├── Setup.razor.cs
    │   └── Setup.razor
    ├── Shared
    │   ├── EmptyLayout.razor.css
    │   ├── MainLayout.razor.css
    │   ├── EmptyLayout.razor
    │   ├── EmptyLayout.razor.cs
    │   ├── MainLayout.razor
    │   └── MainLayout.razor.cs
    ├── ILLink.Descriptors.xml
    ├── wwwroot
    │   ├── css
    │   │   └── site.css
    │   ├── favicon.ico
    │   ├── icons
    │   │   ├── icon-192.png
    │   │   ├── icon-512.png
    │   │   ├── favicon-16x16.png
    │   │   ├── favicon-32x32.png
    │   │   ├── mstile-150x150.png
    │   │   ├── apple-touch-icon.png
    │   │   └── browserconfig.xml
    │   └── manifest.json
    ├── appsettings.Development.json
    ├── .config
    │   └── dotnet-tools.json
    ├── Model
    │   └── SetupModel.cs
    ├── _Imports.razor
    ├── kiosk-server.service
    ├── App.razor
    ├── Services
    │   ├── MyEventService.cs
    │   └── LayoutService.cs
    ├── Properties
    │   ├── launchSettings.json
    │   └── PublishProfiles
    │   │   └── FolderProfile.pubxml
    ├── appsettings.json
    ├── Metrics
    │   ├── DiskMetrics.cs
    │   ├── MemoryMetrics.cs
    │   ├── CPUMetrics.cs
    │   └── TemperatureMetrics.cs
    ├── kiosk-server.csproj
    ├── Api
    │   └── ApiController.cs
    └── Program.cs
├── LICENSE.txt
├── kiosk-server.sln
├── .gitattributes
├── .gitignore
└── README.md


/kiosk-server/Pages/Blank.razor.css:
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1 | 


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/kiosk-server/Pages/kiosk.razor.css:
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1 | 


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/kiosk-server/Shared/EmptyLayout.razor.css:
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1 | 


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/kiosk-server/Shared/MainLayout.razor.css:
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1 | 


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/kiosk-server/ILLink.Descriptors.xml:
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1 | <linker>
2 | </linker>


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/kiosk-server/Pages/Blank.razor:
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1 | @page "/blank"
2 | @layout EmptyLayout
3 | 
4 | 


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/kiosk-server/wwwroot/css/site.css:
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1 | 
2 | 
3 | 
4 | .hideme {
5 |     display: none;
6 | }
7 | 


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/kiosk-server/wwwroot/favicon.ico:
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https://raw.githubusercontent.com/mhwlng/kiosk-server/HEAD/kiosk-server/wwwroot/favicon.ico


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/kiosk-server/wwwroot/icons/icon-192.png:
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https://raw.githubusercontent.com/mhwlng/kiosk-server/HEAD/kiosk-server/wwwroot/icons/icon-192.png


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/kiosk-server/wwwroot/icons/icon-512.png:
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https://raw.githubusercontent.com/mhwlng/kiosk-server/HEAD/kiosk-server/wwwroot/icons/icon-512.png


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/kiosk-server/wwwroot/icons/favicon-16x16.png:
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https://raw.githubusercontent.com/mhwlng/kiosk-server/HEAD/kiosk-server/wwwroot/icons/favicon-16x16.png


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/kiosk-server/wwwroot/icons/favicon-32x32.png:
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https://raw.githubusercontent.com/mhwlng/kiosk-server/HEAD/kiosk-server/wwwroot/icons/favicon-32x32.png


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/kiosk-server/wwwroot/icons/mstile-150x150.png:
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https://raw.githubusercontent.com/mhwlng/kiosk-server/HEAD/kiosk-server/wwwroot/icons/mstile-150x150.png


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/kiosk-server/wwwroot/icons/apple-touch-icon.png:
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https://raw.githubusercontent.com/mhwlng/kiosk-server/HEAD/kiosk-server/wwwroot/icons/apple-touch-icon.png


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/kiosk-server/Pages/Blank.razor.cs:
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 1 | namespace kiosk_server.Pages
 2 | {
 3 |     public partial class Blank
 4 |     {
 5 |      
 6 | 
 7 | 
 8 |     }
 9 | }
10 | 


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/kiosk-server/appsettings.Development.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "DetailedErrors": true,
 3 |   "Logging": {
 4 |     "LogLevel": {
 5 |       "Default": "Information",
 6 |       "Microsoft.AspNetCore": "Warning"
 7 |     }
 8 |   }
 9 | }
10 | 


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/kiosk-server/Pages/_Host.cshtml:
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1 | @page "/"
2 | @namespace kiosk_server.Pages
3 | @addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers
4 | @{
5 |     Layout = "_Layout";
6 | }
7 | 
8 | <component type="typeof(App)" render-mode="Server" />
9 | 


--------------------------------------------------------------------------------
/kiosk-server/.config/dotnet-tools.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "version": 1,
 3 |   "isRoot": true,
 4 |   "tools": {
 5 |     "dotnet-ef": {
 6 |       "version": "6.0.9",
 7 |       "commands": [
 8 |         "dotnet-ef"
 9 |       ]
10 |     }
11 |   }
12 | }


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/kiosk-server/wwwroot/icons/browserconfig.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <browserconfig>
 3 |     <msapplication>
 4 |         <tile>
 5 |             <square150x150logo src="/icons/mstile-150x150.png"/>
 6 |             <TileColor>#373740</TileColor>
 7 |         </tile>
 8 |     </msapplication>
 9 | </browserconfig>
10 | 


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/kiosk-server/Model/SetupModel.cs:
--------------------------------------------------------------------------------
 1 | using kiosk_server.Metrics;
 2 | 
 3 | namespace kiosk_server.Model
 4 | {
 5 |     public class SetupModel
 6 |     {
 7 |         public DiskMetrics Disk { get; set; } = null!;
 8 |         public TemperatureMetrics Temperature { get; set; } = null!;
 9 |         public MemoryMetrics Memory { get; set; } = null!;
10 |         public CpuMetrics Cpu { get; set; } = null!;
11 |         
12 |     }
13 | }
14 | 
15 | 


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/kiosk-server/Shared/EmptyLayout.razor:
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 1 | @using kiosk_server.Services
 2 | @inherits LayoutComponentBase
 3 | 
 4 | <MudThemeProvider IsDarkMode="@LayoutService.IsDarkMode"/>
 5 | <MudPopoverProvider />
 6 | <MudDialogProvider />
 7 | <MudSnackbarProvider />
 8 | 
 9 | <MudLayout Style="height:100vh" Class="d-flex">
10 |      <MudMainContent Class="pt-0 d-flex flex-column">
11 |         @Body
12 |     </MudMainContent>
13 | </MudLayout>
14 |     
15 | 
16 | 


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/kiosk-server/_Imports.razor:
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 1 | @using System.Net.Http
 2 | @using Microsoft.AspNetCore.Authorization
 3 | @using Microsoft.AspNetCore.Components.Authorization
 4 | @using Microsoft.AspNetCore.Components.Forms
 5 | @using Microsoft.AspNetCore.Components.Routing
 6 | @using Microsoft.AspNetCore.Components.Web
 7 | @using Microsoft.AspNetCore.Components.Web.Virtualization
 8 | @using Microsoft.JSInterop
 9 | @using MudBlazor
10 | @using kiosk_server
11 | @using kiosk_server.Shared
12 | 


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/kiosk-server/kiosk-server.service:
--------------------------------------------------------------------------------
 1 | [Unit]
 2 | Description=Kiosk Server 
 3 | Wants=network-online.target
 4 | After=network.target network-online.target
 5 |     
 6 | [Service]
 7 | Type=notify
 8 | WorkingDirectory=/home/pi/kiosk-server/
 9 | ExecStart=/home/pi/kiosk-server/kiosk-server
10 | SyslogIdentifier=KioskServer
11 | User=pi
12 | Environment=ASPNETCORE_ENVIRONMENT=Production
13 | Restart=always
14 | RestartSec=5
15 | 
16 | [Install]
17 | WantedBy=multi-user.target
18 | 


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/kiosk-server/wwwroot/manifest.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "name": "Kiosk Server",
 3 |   "short_name": "Kiosk Server",
 4 |   "start_url": "/",
 5 |   "display": "standalone",
 6 |   "background_color": "#373740",
 7 |   "theme_color": "#373740",
 8 |   "icons": [
 9 |     {
10 |       "src": "/icons/icon-192.png",
11 |       "type": "image/png",
12 |       "sizes": "192x192"
13 |     },
14 |     {
15 |       "src": "/icons/icon-512.png",
16 |       "type": "image/png",
17 |       "sizes": "512x512"
18 |     }
19 |   ]
20 | }


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/kiosk-server/App.razor:
--------------------------------------------------------------------------------
 1 | <Router AppAssembly="@typeof(App).Assembly">
 2 |     <Found Context="routeData">
 3 |         <RouteView RouteData="@routeData" DefaultLayout="@typeof(MainLayout)" />
 4 |         <FocusOnNavigate RouteData="@routeData" Selector="h1" />
 5 |     </Found>
 6 |     <NotFound>
 7 |         <PageTitle>Not found</PageTitle>
 8 |         <LayoutView Layout="@typeof(MainLayout)">
 9 |             <p role="alert">Sorry, there's nothing at this address.</p>
10 |         </LayoutView>
11 |     </NotFound>
12 | </Router>
13 | 


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/kiosk-server/Services/MyEventService.cs:
--------------------------------------------------------------------------------
 1 | // Copyright (c) MudBlazor 2021
 2 | // MudBlazor licenses this file to you under the MIT license.
 3 | // See the LICENSE file in the project root for more information.
 4 | 
 5 | namespace kiosk_server.Services
 6 | {
 7 |     public class MyEventService
 8 |     {
 9 |         public event Action<string?> OnUrlChange = null!;
10 |         
11 |         public void NavigateToUrl(string? url)
12 |         {
13 |             OnUrlChange?.Invoke(url);
14 | 
15 |         }
16 | 
17 | 
18 |     }
19 | 
20 | 
21 | }
22 | 


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/kiosk-server/Pages/Error.cshtml.cs:
--------------------------------------------------------------------------------
 1 | using Microsoft.AspNetCore.Mvc;
 2 | using Microsoft.AspNetCore.Mvc.RazorPages;
 3 | using System.Diagnostics;
 4 | 
 5 | namespace kiosk_server.Pages
 6 | {
 7 |     [ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
 8 |     [IgnoreAntiforgeryToken]
 9 |     public class ErrorModel(ILogger<ErrorModel> logger) : PageModel
10 |     {
11 |         public string? RequestId { get; set; }
12 | 
13 |         public bool ShowRequestId => !string.IsNullOrEmpty(RequestId);
14 | 
15 |         private readonly ILogger<ErrorModel> _logger = logger;
16 | 
17 |         public void OnGet()
18 |         {
19 |             RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier;
20 |         }
21 |     }
22 | }


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/kiosk-server/Shared/EmptyLayout.razor.cs:
--------------------------------------------------------------------------------
 1 | using kiosk_server.Services;
 2 | using Microsoft.AspNetCore.Components;
 3 | 
 4 | namespace kiosk_server.Shared
 5 | {
 6 |     public partial class EmptyLayout
 7 |     {
 8 |         [Inject] private LayoutService LayoutService { get; set; } = null!;
 9 | 
10 |         protected override void OnInitialized()
11 |         {
12 |             LayoutService.MajorUpdateOccured += LayoutServiceOnMajorUpdateOccured;
13 |             base.OnInitialized();
14 |         }
15 |         
16 |         public void Dispose()
17 |         {
18 |             LayoutService.MajorUpdateOccured -= LayoutServiceOnMajorUpdateOccured;
19 |         }
20 | 
21 |         private void LayoutServiceOnMajorUpdateOccured(object? sender, EventArgs e) => StateHasChanged();
22 |     }
23 | 
24 | }
25 | 


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/kiosk-server/Properties/launchSettings.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "iisSettings": {
 3 |     "windowsAuthentication": false,
 4 |     "anonymousAuthentication": true,
 5 |     "iisExpress": {
 6 |       "applicationUrl": "http://localhost:21050",
 7 |       "sslPort": 0
 8 |     }
 9 |   },
10 |   "profiles": {
11 |     "kiosk-server": {
12 |       "commandName": "Project",
13 |       "dotnetRunMessages": true,
14 |       "launchBrowser": true,
15 |       "externalUrlConfiguration": true, 
16 |       "applicationUrl": "http://localhost:5000",
17 |       "environmentVariables": {
18 |         "ASPNETCORE_ENVIRONMENT": "Development"
19 |       }
20 |     },
21 |     "IIS Express": {
22 |       "commandName": "IISExpress",
23 |       "launchBrowser": true,
24 |       "environmentVariables": {
25 |         "ASPNETCORE_ENVIRONMENT": "Development"
26 |       }
27 |     }
28 |   }
29 | }
30 | 


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/kiosk-server/Shared/MainLayout.razor:
--------------------------------------------------------------------------------
 1 | @using kiosk_server.Services
 2 | @inherits LayoutComponentBase
 3 | 
 4 | <CascadingValue Value="this">
 5 | 
 6 |     <PageTitle>@Title</PageTitle>
 7 | 
 8 |     <MudThemeProvider IsDarkMode="@LayoutService.IsDarkMode" />
 9 |     <MudDialogProvider />
10 |     <MudSnackbarProvider />
11 | 
12 |     <MudLayout Style="height:100vh" Class="d-flex">
13 |         <MudAppBar Elevation="10" Color="@(LayoutService.IsDarkMode ? Color.Dark : Color.Primary)">
14 |             <MudText Typo="Typo.h4" Align="Align.Center" Class="flex-grow-1 flex-shrink-1">@Title</MudText>
15 |             <MudIconButton Icon="@(LayoutService.IsDarkMode ? Icons.Material.Rounded.LightMode : Icons.Material.Outlined.DarkMode)" Color="Color.Inherit" OnClick="@LayoutService.ToggleDarkMode" />
16 | 
17 |         </MudAppBar>
18 |         <MudMainContent Class="d-flex flex-column">
19 |             @Body
20 |         </MudMainContent>
21 |     </MudLayout>
22 | 
23 | </CascadingValue>
24 | 
25 | 


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/kiosk-server/Properties/PublishProfiles/FolderProfile.pubxml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <!--
 3 | https://go.microsoft.com/fwlink/?LinkID=208121.
 4 | -->
 5 | <Project>
 6 |   <PropertyGroup>
 7 |     <DeleteExistingFiles>true</DeleteExistingFiles>
 8 |     <ExcludeApp_Data>false</ExcludeApp_Data>
 9 |     <LaunchSiteAfterPublish>true</LaunchSiteAfterPublish>
10 |     <LastUsedBuildConfiguration>Release</LastUsedBuildConfiguration>
11 |     <LastUsedPlatform>Any CPU</LastUsedPlatform>
12 |     <PublishProvider>FileSystem</PublishProvider>
13 |     <PublishUrl>bin\Release\net10.0\publish\</PublishUrl>
14 |     <WebPublishMethod>FileSystem</WebPublishMethod>
15 |     <_TargetId>Folder</_TargetId>
16 |     <SiteUrlToLaunchAfterPublish />
17 |     <TargetFramework>net10.0</TargetFramework>
18 |     <RuntimeIdentifier>linux-arm64</RuntimeIdentifier>
19 |     <PublishTrimmed>false</PublishTrimmed>
20 |     <ProjectGuid>2fb23800-8c51-41de-b9e9-ec0b28be1a28</ProjectGuid>
21 |     <SelfContained>true</SelfContained>
22 |   </PropertyGroup>
23 | </Project>


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/kiosk-server/Shared/MainLayout.razor.cs:
--------------------------------------------------------------------------------
 1 | using kiosk_server.Services;
 2 | using Microsoft.AspNetCore.Components;
 3 | 
 4 | namespace kiosk_server.Shared
 5 | {
 6 |     public partial class MainLayout
 7 |     {
 8 |         [Inject] private LayoutService LayoutService { get; set; } = null!;
 9 | 
10 |         private string? _title;
11 | 
12 |         public string Title
13 |         {
14 |             get => _title ?? "";
15 |             set
16 |             {
17 |                 _title = value ?? "";
18 |                 InvokeAsync(StateHasChanged);
19 |             }
20 |         }
21 |         protected override void OnInitialized()
22 |         {
23 |             LayoutService.MajorUpdateOccured += LayoutServiceOnMajorUpdateOccured;
24 |             base.OnInitialized();
25 |         }
26 | 
27 |         public void Dispose()
28 |         {
29 |             LayoutService.MajorUpdateOccured -= LayoutServiceOnMajorUpdateOccured;
30 |         }
31 |         
32 |         private void LayoutServiceOnMajorUpdateOccured(object? sender, EventArgs e) => StateHasChanged();
33 |     }
34 | }
35 | 


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/kiosk-server/Pages/Index.razor:
--------------------------------------------------------------------------------
 1 | @page "/"
 2 | 
 3 | <MudPaper Class="pa-4 ma-4 flex-grow-1 flex-shrink-1"  Elevation="10">
 4 |     
 5 |     
 6 | 
 7 |     <MudSimpleTable Elevation="4">
 8 |     <thead>
 9 |     <tr>
10 |         <th>External Urls</th>
11 |     </tr>
12 |     </thead>
13 |     <tbody>
14 |     @foreach (var url in WebServerUrls)
15 |     {
16 |         <tr>
17 |             <td>
18 |                  <a href="@url">@url</a>
19 |             </td>
20 |         </tr>
21 |     }
22 |     </tbody>
23 |     </MudSimpleTable>
24 | 
25 |     <MudSimpleTable Elevation="4" Class="mt-4">
26 |         <thead>
27 |         <tr>
28 |             <th colspan="2">Kiosk Urls</th>
29 |         </tr>
30 |         </thead>
31 |         <tbody>
32 |             @foreach (var url in RedirectUrlList)
33 |             {
34 |                 <tr>
35 |                     <td>
36 |                         @url.Name
37 |                     </td>
38 |                     <td>
39 |                         @url.Url
40 |                     </td>
41 |                 </tr>
42 |             }
43 |         </tbody>
44 |     </MudSimpleTable>
45 | 
46 | </MudPaper>
47 | 


--------------------------------------------------------------------------------
/LICENSE.txt:
--------------------------------------------------------------------------------
 1 | MIT License
 2 | 
 3 | Copyright (c) 2022 mhwlng
 4 | 
 5 | Permission is hereby granted, free of charge, to any person obtaining a copy
 6 | of this software and associated documentation files (the "Software"), to deal
 7 | in the Software without restriction, including without limitation the rights
 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 9 | copies of the Software, and to permit persons to whom the Software is
10 | furnished to do so, subject to the following conditions:
11 | 
12 | The above copyright notice and this permission notice shall be included in all
13 | copies or substantial portions of the Software.
14 | 
15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 | SOFTWARE.
22 | 


--------------------------------------------------------------------------------
/kiosk-server.sln:
--------------------------------------------------------------------------------
 1 | 
 2 | Microsoft Visual Studio Solution File, Format Version 12.00
 3 | # Visual Studio Version 17
 4 | VisualStudioVersion = 17.3.32901.215
 5 | MinimumVisualStudioVersion = 10.0.40219.1
 6 | Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "kiosk-server", "kiosk-server\kiosk-server.csproj", "{2FB23800-8C51-41DE-B9E9-EC0B28BE1A28}"
 7 | EndProject
 8 | Global
 9 | 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
10 | 		Debug|Any CPU = Debug|Any CPU
11 | 		Release|Any CPU = Release|Any CPU
12 | 	EndGlobalSection
13 | 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
14 | 		{2FB23800-8C51-41DE-B9E9-EC0B28BE1A28}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
15 | 		{2FB23800-8C51-41DE-B9E9-EC0B28BE1A28}.Debug|Any CPU.Build.0 = Debug|Any CPU
16 | 		{2FB23800-8C51-41DE-B9E9-EC0B28BE1A28}.Release|Any CPU.ActiveCfg = Release|Any CPU
17 | 		{2FB23800-8C51-41DE-B9E9-EC0B28BE1A28}.Release|Any CPU.Build.0 = Release|Any CPU
18 | 	EndGlobalSection
19 | 	GlobalSection(SolutionProperties) = preSolution
20 | 		HideSolutionNode = FALSE
21 | 	EndGlobalSection
22 | 	GlobalSection(ExtensibilityGlobals) = postSolution
23 | 		SolutionGuid = {3C7448DC-FF88-4BA1-A122-5D60A1CD7B6C}
24 | 	EndGlobalSection
25 | EndGlobal
26 | 


--------------------------------------------------------------------------------
/kiosk-server/Services/LayoutService.cs:
--------------------------------------------------------------------------------
 1 | using System.Text.Json;
 2 | 
 3 | namespace kiosk_server.Services
 4 | {
 5 |     public class LayoutService
 6 |     {
 7 |         public static bool IsDarkMode => Program.ConfigurationRoot.GetValue<bool>("DarkMode");
 8 | 
 9 |         public event EventHandler MajorUpdateOccured = null!;
10 | 
11 |         private void OnMajorUpdateOccured() => MajorUpdateOccured?.Invoke(this, EventArgs.Empty);
12 | 
13 |         private static async Task UpdateAppSettings(bool darkMode)
14 |         {
15 | #if DEBUG
16 |             var path = Path.Combine(Environment.CurrentDirectory, "appsettings.json");
17 | #else
18 |             var path = Path.Combine(AppContext.BaseDirectory, "appsettings.json");
19 | #endif
20 | 
21 |             var configJson = await File.ReadAllTextAsync(path);
22 |             var config = JsonSerializer.Deserialize<Dictionary<string, object>>(configJson);
23 | 
24 |             if (config != null)
25 |             {
26 |                 config["DarkMode"] = darkMode;
27 | 
28 |                 var updatedConfigJson =
29 |                     JsonSerializer.Serialize(config, new JsonSerializerOptions { WriteIndented = true });
30 |                 await File.WriteAllTextAsync(path, updatedConfigJson);
31 | 
32 |                 Program.ConfigurationRoot.Reload();
33 |             }
34 |         }
35 | 
36 |         public async Task ToggleDarkMode()
37 |         {
38 |             await UpdateAppSettings(!IsDarkMode);
39 |     
40 |             OnMajorUpdateOccured();
41 |         }
42 | 
43 | 
44 |     }
45 | 
46 | 
47 | }
48 | 


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/kiosk-server/Pages/Error.cshtml:
--------------------------------------------------------------------------------
 1 | @page
 2 | @model kiosk_server.Pages.ErrorModel
 3 | 
 4 | <!DOCTYPE html>
 5 | <html lang="en">
 6 | 
 7 | <head>
 8 |     <meta charset="utf-8" />
 9 |     <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
10 |     <title>Error</title>
11 |     <link href="~/css/bootstrap/bootstrap.min.css" rel="stylesheet" />
12 |     <link href="~/css/app.css" rel="stylesheet" />
13 | </head>
14 | 
15 | <body>
16 |     <div class="main">
17 |         <div class="content px-4">
18 |             <h1 class="text-danger">Error.</h1>
19 |             <h2 class="text-danger">An error occurred while processing your request.</h2>
20 | 
21 |             @if (Model.ShowRequestId)
22 |             {
23 |                 <p>
24 |                     <strong>Request ID:</strong> <code>@Model.RequestId</code>
25 |                 </p>
26 |             }
27 | 
28 |             <h3>Development Mode</h3>
29 |             <p>
30 |                 Swapping to the <strong>Development</strong> environment displays detailed information about the error that occurred.
31 |             </p>
32 |             <p>
33 |                 <strong>The Development environment shouldn't be enabled for deployed applications.</strong>
34 |                 It can result in displaying sensitive information from exceptions to end users.
35 |                 For local debugging, enable the <strong>Development</strong> environment by setting the <strong>ASPNETCORE_ENVIRONMENT</strong> environment variable to <strong>Development</strong>
36 |                 and restarting the app.
37 |             </p>
38 |         </div>
39 |     </div>
40 | </body>
41 | 
42 | </html>
43 | 


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/kiosk-server/appsettings.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "Logging": {
 3 |     "LogLevel": {
 4 |       "Default": "Information",
 5 |       "Microsoft": "Warning",
 6 |       "Microsoft.Hosting.Lifetime": "Information",
 7 |       "Microsoft.AspNetCore": "Warning"
 8 |     }
 9 |   },
10 |   "DarkMode": true,
11 |   "AllowedHosts": "*",
12 |   "Port": 5000,
13 |   "RedirectUrl": [
14 |     {
15 |       "Name": "home",
16 |       "Url": "https://www.msn.com"
17 |     }
18 |   ],
19 |   "Serilog": {
20 |     "Using": [
21 |       "Serilog.Sinks.File"
22 |     ],
23 |     "MinimumLevel": {
24 |       "Default": "Information",
25 |       "Override": {
26 |         "Microsoft": "Warning",
27 |         "Microsoft.Hosting.Lifetime": "Information"
28 |       }
29 |     },
30 |     "WriteTo": [
31 |       {
32 |         "Name": "File",
33 |         "Args": {
34 |           "path": "log.txt",
35 |           "fileSizeLimitBytes": "1000000",
36 |           "rollOnFileSizeLimit": "True",
37 |           "retainedFileCountLimit": "10",
38 |           "outputTemplate": "{Timestamp:yyyy-MM-dd HH:mm:ss.fff} ({ThreadID}) [{Level}] {Message}{NewLine}{Exception}"
39 |         }
40 |       }
41 |     ],
42 |     "Enrich": [
43 |       "FromLogContext",
44 |       "WithMachineName",
45 |       "WithThreadId"
46 |     ],
47 |     "Destructure": [
48 |       {
49 |         "Name": "ToMaximumDepth",
50 |         "Args": {
51 |           "maximumDestructuringDepth": 4
52 |         }
53 |       },
54 |       {
55 |         "Name": "ToMaximumStringLength",
56 |         "Args": {
57 |           "maximumStringLength": 100
58 |         }
59 |       },
60 |       {
61 |         "Name": "ToMaximumCollectionCount",
62 |         "Args": {
63 |           "maximumCollectionCount": 10
64 |         }
65 |       }
66 |     ]
67 |   }
68 | }


--------------------------------------------------------------------------------
/kiosk-server/Metrics/DiskMetrics.cs:
--------------------------------------------------------------------------------
 1 | using System.Runtime.InteropServices;
 2 | 
 3 | namespace kiosk_server.Metrics
 4 | {
 5 |     public class DiskMetrics
 6 |     {
 7 |         public double TotalDiskSpace { get; set; }
 8 |         public double AvailableDiskSpace { get; set; }
 9 | 
10 | 
11 |     }
12 | 
13 |     public class DiskMetricsClient
14 |     {
15 |         public static DiskMetrics GetMetrics()
16 |         {
17 |             return IsLinux() ? GetLinuxMetrics() : GetWindowsMetrics();
18 |         }
19 | 
20 |         private static bool IsLinux()
21 |         {
22 |             var isLinux = RuntimeInformation.IsOSPlatform(OSPlatform.OSX) ||
23 |                          RuntimeInformation.IsOSPlatform(OSPlatform.Linux);
24 | 
25 |             return isLinux;
26 |         }
27 | 
28 |         private static DiskMetrics GetWindowsMetrics()
29 |         {
30 |             var metrics = new DiskMetrics();
31 | 
32 |             var f = new FileInfo(AppContext.BaseDirectory);
33 |             var drive = Path.GetPathRoot(f.FullName);
34 | 
35 |             var driveInfo = new DriveInfo(drive ?? "c:\\");
36 |             metrics.AvailableDiskSpace = driveInfo.AvailableFreeSpace / Math.Pow(1024, 3);
37 |             metrics.TotalDiskSpace = driveInfo.TotalSize / Math.Pow(1024, 3);
38 | 
39 |             return metrics;
40 |         }
41 | 
42 |         private static DiskMetrics GetLinuxMetrics()
43 |         {
44 |             var metrics = new DiskMetrics();
45 | 
46 |             var driveInfo = new DriveInfo("/");
47 |             metrics.AvailableDiskSpace = driveInfo.AvailableFreeSpace / Math.Pow(1024, 3);
48 |             metrics.TotalDiskSpace = driveInfo.TotalSize / Math.Pow(1024, 3);
49 | 
50 |             return metrics;
51 | 
52 | 
53 |         }
54 |     }
55 | }
56 | 


--------------------------------------------------------------------------------
/kiosk-server/Pages/Kiosk.razor:
--------------------------------------------------------------------------------
 1 | @page "/kiosk"
 2 | @using kiosk_server.Services
 3 | @layout EmptyLayout
 4 | 
 5 | <MudLayout Class="d-flex flex-grow-1" Style="">
 6 |     <MudAppBar Elevation="0" Class="pa-0 ma-0 " Color="@(LayoutService.IsDarkMode ? Color.Dark : Color.Primary)">
 7 |         <MudTabs Class="pa-0 ma-0" Elevation="0" Rounded="false" Border="false" Ripple="false" SliderAnimation="false" Color="@(LayoutService.IsDarkMode ? Color.Dark : Color.Primary)" ActivePanelIndexChanged="ActivePanelIndexChanged" TabHeaderClass="@TabHeaderClass">
 8 |             @foreach (var url in RedirectUrlList)
 9 |             {
10 |                 <MudTabPanel Text="@url.Name"/>
11 |             }
12 |         </MudTabs>
13 |         <MudSpacer />
14 |         <MudIconButton Icon="@(LayoutService.IsDarkMode ? Icons.Material.Rounded.Fullscreen : Icons.Material.Outlined.Fullscreen)" Color="Color.Inherit" OnClick="@HandleFullScreen" />
15 |         <MudIconButton Icon="@(LayoutService.IsDarkMode ? Icons.Material.Rounded.ExitToApp : Icons.Material.Outlined.ExitToApp)" Color="Color.Inherit" OnClick="@HandleStopChromium" />
16 |         <MudIconButton Icon="@(LayoutService.IsDarkMode ? Icons.Material.Rounded.PowerSettingsNew : Icons.Material.Outlined.PowerSettingsNew)" Color="Color.Inherit" OnClick="@HandleShutdown" />
17 | 
18 |     </MudAppBar>
19 |     <MudMainContent Class="d-flex flex-column">
20 |         <MudPaper Class="pa-0 ma-0 flex-grow-1 flex-shrink-1" Square="true" Elevation="0" Style="overflow:hidden">
21 | 
22 |             <iframe target="_top" name="iframe_kiosk" src="@CurrentIframeUrl" frameborder="0" scrolling="yes" style=" flex-grow: 1; border: none; margin: 0; padding: 0; z-index: 999999;">
23 |             </iframe>
24 | 
25 |         </MudPaper>
26 | 
27 |     </MudMainContent>
28 | </MudLayout>


--------------------------------------------------------------------------------
/.gitattributes:
--------------------------------------------------------------------------------
 1 | ###############################################################################
 2 | # Set default behavior to automatically normalize line endings.
 3 | ###############################################################################
 4 | * text=auto
 5 | 
 6 | ###############################################################################
 7 | # Set default behavior for command prompt diff.
 8 | #
 9 | # This is need for earlier builds of msysgit that does not have it on by
10 | # default for csharp files.
11 | # Note: This is only used by command line
12 | ###############################################################################
13 | #*.cs     diff=csharp
14 | 
15 | ###############################################################################
16 | # Set the merge driver for project and solution files
17 | #
18 | # Merging from the command prompt will add diff markers to the files if there
19 | # are conflicts (Merging from VS is not affected by the settings below, in VS
20 | # the diff markers are never inserted). Diff markers may cause the following 
21 | # file extensions to fail to load in VS. An alternative would be to treat
22 | # these files as binary and thus will always conflict and require user
23 | # intervention with every merge. To do so, just uncomment the entries below
24 | ###############################################################################
25 | #*.sln       merge=binary
26 | #*.csproj    merge=binary
27 | #*.vbproj    merge=binary
28 | #*.vcxproj   merge=binary
29 | #*.vcproj    merge=binary
30 | #*.dbproj    merge=binary
31 | #*.fsproj    merge=binary
32 | #*.lsproj    merge=binary
33 | #*.wixproj   merge=binary
34 | #*.modelproj merge=binary
35 | #*.sqlproj   merge=binary
36 | #*.wwaproj   merge=binary
37 | 
38 | ###############################################################################
39 | # behavior for image files
40 | #
41 | # image files are treated as binary by default.
42 | ###############################################################################
43 | #*.jpg   binary
44 | #*.png   binary
45 | #*.gif   binary
46 | 
47 | ###############################################################################
48 | # diff behavior for common document formats
49 | # 
50 | # Convert binary document formats to text before diffing them. This feature
51 | # is only available from the command line. Turn it on by uncommenting the 
52 | # entries below.
53 | ###############################################################################
54 | #*.doc   diff=astextplain
55 | #*.DOC   diff=astextplain
56 | #*.docx  diff=astextplain
57 | #*.DOCX  diff=astextplain
58 | #*.dot   diff=astextplain
59 | #*.DOT   diff=astextplain
60 | #*.pdf   diff=astextplain
61 | #*.PDF   diff=astextplain
62 | #*.rtf   diff=astextplain
63 | #*.RTF   diff=astextplain
64 | 


--------------------------------------------------------------------------------
/kiosk-server/Metrics/MemoryMetrics.cs:
--------------------------------------------------------------------------------
 1 | using System.Diagnostics;
 2 | using System.Runtime.InteropServices;
 3 | 
 4 | namespace kiosk_server.Metrics
 5 | {
 6 |     public class MemoryMetrics
 7 |     {
 8 |         public double TotalMemory { get; set; }
 9 |         public double UsedMemory { get; set; }
10 |         public double FreeMemory { get; set; }
11 |     }
12 | 
13 |     // copied from https://gunnarpeipman.com/dotnet-core-system-memory/
14 | 
15 |     public class MemoryMetricsClient
16 |     {
17 |         public static MemoryMetrics GetMetrics()
18 |         {
19 |             return IsLinux() ? GetLinuxMetrics() : GetWindowsMetrics();
20 |         }
21 | 
22 |         private static bool IsLinux()
23 |         {
24 |             var isLinux = RuntimeInformation.IsOSPlatform(OSPlatform.OSX) ||
25 |                          RuntimeInformation.IsOSPlatform(OSPlatform.Linux);
26 | 
27 |             return isLinux;
28 |         }
29 | 
30 |         private static MemoryMetrics GetWindowsMetrics()
31 |         {
32 |             var output = "";
33 | 
34 |             var info = new ProcessStartInfo
35 |             {
36 |                 FileName = "wmic",
37 |                 Arguments = "OS get FreePhysicalMemory,TotalVisibleMemorySize /Value",
38 |                 RedirectStandardOutput = true
39 |             };
40 | 
41 |             using (var process = Process.Start(info))
42 |             {
43 |                 output = process?.StandardOutput.ReadToEnd();
44 |             }
45 | 
46 |             var metrics = new MemoryMetrics();
47 | 
48 |             var lines = output?.Trim().Split("\n");
49 |             if (lines != null)
50 |             {
51 |                 var freeMemoryParts = lines[0].Split("=", StringSplitOptions.RemoveEmptyEntries);
52 |                 var totalMemoryParts = lines[1].Split("=", StringSplitOptions.RemoveEmptyEntries);
53 | 
54 |                 metrics.TotalMemory = Math.Round(double.Parse(totalMemoryParts[1]) / 1024, 0);
55 |                 metrics.FreeMemory = Math.Round(double.Parse(freeMemoryParts[1]) / 1024, 0);
56 |                 metrics.UsedMemory = metrics.TotalMemory - metrics.FreeMemory;
57 |             }
58 | 
59 |             return metrics;
60 |         }
61 | 
62 |         private static MemoryMetrics GetLinuxMetrics()
63 |         {
64 |             var output = "";
65 | 
66 |             var info = new ProcessStartInfo("free -m")
67 |             {
68 |                 FileName = "/bin/bash",
69 |                 Arguments = "-c \"free -m\"",
70 |                 RedirectStandardOutput = true
71 |             };
72 | 
73 |             using (var process = Process.Start(info))
74 |             {
75 |                 output = process?.StandardOutput.ReadToEnd();
76 |             }
77 | 
78 |             var metrics = new MemoryMetrics();
79 | 
80 |             var lines = output?.Split("\n");
81 |             if (lines != null)
82 |             {
83 |                 var memory = lines[1].Split(" ", StringSplitOptions.RemoveEmptyEntries);
84 | 
85 |                 metrics.TotalMemory = double.Parse(memory[1]);
86 |                 metrics.UsedMemory = double.Parse(memory[2]);
87 |                 metrics.FreeMemory = double.Parse(memory[3]);
88 | 
89 |             }
90 | 
91 |             return metrics;
92 |         }
93 |     }
94 | }
95 | 


--------------------------------------------------------------------------------
/kiosk-server/Pages/Kiosk.razor.cs:
--------------------------------------------------------------------------------
 1 | using Microsoft.AspNetCore.Components;
 2 | using System.Diagnostics;
 3 | using kiosk_server.Services;
 4 | 
 5 | namespace kiosk_server.Pages
 6 | {
 7 |     public partial class Kiosk
 8 |     {
 9 |         [Inject] private LayoutService LayoutService { get; set; } = null!;
10 |         [Inject] private MyEventService EventService { get; set; } = null!;
11 |         [Inject] private NavigationManager NavigationManager { get; set; } = null!;
12 |         
13 |         private List<RedirectItem> RedirectUrlList { get; set; } = null!;
14 |         
15 |         private string? CurrentIframeUrl;
16 | 
17 |         private string? TabHeaderClass;
18 | 
19 |         protected override async Task OnAfterRenderAsync(bool firstRender)
20 |         {
21 |             await base.OnAfterRenderAsync(firstRender);
22 |             if (firstRender)
23 |             {
24 |                 CurrentIframeUrl = RedirectUrlList.FirstOrDefault()?.Url ?? "";
25 | 
26 |                 StateHasChanged();
27 |             }
28 |         }
29 | 
30 | 
31 |         protected override async Task OnInitializedAsync()
32 |         {
33 |             EventService.OnUrlChange += NavigateToUrl;
34 | 
35 |             RedirectUrlList = Program.ConfigurationRoot.GetSection("RedirectUrl").Get<List<RedirectItem>>() ?? [];
36 |             
37 |             await base.OnInitializedAsync();
38 | 
39 |         }
40 | 
41 |         public void Dispose()
42 |         {
43 |             EventService.OnUrlChange -= NavigateToUrl;
44 | 
45 |         }
46 | 
47 |         private void NavigateToUrl(string? url)
48 |         {
49 |             InvokeAsync(() =>
50 |             {
51 |                 if (string.IsNullOrEmpty(url))
52 |                 {
53 |                     NavigationManager.NavigateTo(NavigationManager.Uri, true);
54 |                 }
55 |                 else
56 |                 {
57 |                     CurrentIframeUrl = url;
58 |                     TabHeaderClass = "hideme";
59 |                     StateHasChanged();
60 |                 }
61 | 
62 |             });
63 |         }
64 | 
65 |         private void ActivePanelIndexChanged(int index)
66 |         {
67 |             CurrentIframeUrl = RedirectUrlList[index].Url;
68 |             
69 |             StateHasChanged();
70 |         }
71 | 
72 |         private static void HandleShutdown()
73 |         {
74 |             Process.Start(new ProcessStartInfo { FileName = "sudo", Arguments = "shutdown now" });
75 |         }
76 | 
77 |         private static void HandleStopChromium()
78 |         {
79 |             Process.Start(new ProcessStartInfo { FileName = "/usr/bin/bash", Arguments = "-c \"ps aux | awk '/chromium/ { print $2 } ' | xargs kill  \"" })?.WaitForExit();
80 |         }
81 | 
82 |         private static void HandleFullScreen() 
83 |         {
84 |             //Process.Start(new ProcessStartInfo { FileName = "/usr/bin/bash", Arguments = "-c \"export WAYLAND_DISPLAY=wayland-1 ; export XDG_RUNTIME_DIR=/run/user/1000 ; wtype -P F11 \"" })?.WaitForExit(); // wayfire
85 | 
86 |             Process.Start(new ProcessStartInfo { FileName = "/usr/bin/bash", Arguments = "-c \"export WAYLAND_DISPLAY=wayland-0 ; export XDG_RUNTIME_DIR=/run/user/1000 ; wtype -P F11 \"" })?.WaitForExit(); // labwc
87 |         }
88 |     }
89 | }
90 | 


--------------------------------------------------------------------------------
/kiosk-server/Pages/_Layout.cshtml:
--------------------------------------------------------------------------------
 1 | @using Microsoft.AspNetCore.Components.Web
 2 | @namespace kiosk_server.Pages
 3 | @addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers
 4 | 
 5 | <!DOCTYPE html>
 6 | <html lang="en">
 7 | <head>
 8 |  <meta charset="utf-8" />
 9 |     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
10 |   
11 |     <meta http-equiv="X-UA-Compatible" content="IE=edge">
12 |     <meta name="google" content="notranslate">
13 | 
14 |     <meta http-equiv="Accept-CH" content="DPR, Viewport-Width, Width">
15 |     <meta http-equiv="content-type" content="text/html; charset=UTF-8">
16 | 
17 |     <meta name="apple-mobile-web-app-capable" content="yes">
18 |     <meta name="theme-color" content="#373740" />
19 |     <link rel="apple-touch-icon" sizes="180x180" href="icons/apple-touch-icon.png">
20 |     <link rel="icon" type="image/png" sizes="32x32" href="icons/favicon-32x32.png">
21 |     <link rel="icon" type="image/png" sizes="16x16" href="icons/favicon-16x16.png">
22 | 
23 |     <meta name="msapplication-TileColor" content="#373740">
24 |     <meta name="msapplication-config" content="icons/browserconfig.xml">
25 | 
26 |     <link rel="shortcut icon" href="favicon.ico" type="image/x-icon">
27 |     <link rel="manifest" href="manifest.json" />
28 | 
29 |     <meta name="application-name" content="kiosk-server" />
30 | 
31 |     <base href="~/" />
32 |     <link href="https://fonts.googleapis.com/css?family=Roboto:300,400,500,700&display=swap" rel="stylesheet" />
33 |     <link href="_content/MudBlazor/MudBlazor.min.css" rel="stylesheet" />
34 |     <link href="css/site.css" rel="stylesheet" />
35 |     <link href="kiosk-server.styles.css" rel="stylesheet" />
36 |     <style>
37 |         #components-reconnect-modal
38 |         {
39 |             color: black;
40 |         }
41 |         #components-reconnect-modal a
42 |         {
43 |             color: black;
44 |             font-weight: bold;
45 |             text-decoration:underline
46 |         }
47 |     </style>
48 |     @*<script src="appscript://dynamic.js"></script>*@
49 |     
50 |     <component type="typeof(HeadOutlet)" render-mode="Server" />
51 | </head>
52 | <body>
53 |     @RenderBody()
54 | 
55 |     <div id="blazor-error-ui">
56 |         <environment include="Staging,Production">
57 |             An error has occurred. This application may no longer respond until reloaded.
58 |         </environment>
59 |         <environment include="Development">
60 |             An unhandled exception has occurred. See browser dev tools for details.
61 |         </environment>
62 |         <a href="" class="reload">Reload</a>
63 |         <a class="dismiss">🗙</a>
64 |     </div>
65 | 
66 |     <script src="_framework/blazor.server.js"></script>
67 |     <script src="_content/MudBlazor/MudBlazor.min.js"></script>
68 | @*
69 |     @if (Request.Host.Host.Contains("127.0.0.1"))
70 |     {
71 |     <script src="js/JsInterop.js"></script>
72 | 
73 |     }
74 |     else
75 |     {
76 |     <script>
77 |     if (window.frameElement) {
78 |     var head = document.getElementsByTagName('head')[0];
79 |     var link = document.createElement('link');
80 |     link.rel = 'stylesheet';
81 |     link.type = 'text/css';
82 |     link.href = 'css/site2.css';
83 |     head.appendChild(link);
84 |     }
85 | 
86 |     </script>
87 |     }
88 |     *@
89 | 
90 | </body>
91 | </html>
92 | 


--------------------------------------------------------------------------------
/kiosk-server/Pages/Index.razor.cs:
--------------------------------------------------------------------------------
 1 | using kiosk_server.Shared;
 2 | using Microsoft.AspNetCore.Components;
 3 | using System.Net.NetworkInformation;
 4 | using System.Net.Sockets;
 5 | using System.Text.Json.Serialization;
 6 | 
 7 | namespace kiosk_server.Pages
 8 | {
 9 |     public class RedirectItem
10 |     {
11 |         [JsonIgnore] public int Id { get; set; }
12 | 
13 | 
14 |         public string? Name { get; set; } 
15 |         public string? Url { get; set; } 
16 | 
17 |     }
18 | 
19 |     public partial class Index
20 |     {
21 |         [CascadingParameter] public MainLayout MainLayout { get; set; } = null!;
22 | 
23 |         [Inject] private NavigationManager NavigationManager { get; set; } = null!;
24 |         
25 |         private List<string> WebServerUrls { get; set; } = [];
26 | 
27 |         private List<RedirectItem> RedirectUrlList { get; set; } = null!;
28 | 
29 |         protected override async Task OnAfterRenderAsync(bool firstRender)
30 |         {
31 |             await base.OnAfterRenderAsync(firstRender);
32 | 
33 |             if (firstRender)
34 |             {
35 | #if !DEBUG
36 |                 if (RedirectUrlList.Count(x => !string.IsNullOrEmpty(x.Url)) > 1)
37 |                 {
38 |                     NavigationManager.NavigateTo("/kiosk", true);
39 |                 } 
40 |                 else if (!string.IsNullOrEmpty(RedirectUrlList.FirstOrDefault()?.Url))
41 |                 {
42 |                     NavigationManager.NavigateTo(RedirectUrlList.FirstOrDefault()?.Url ?? "?", true);
43 |                 }
44 | #else
45 |                NavigationManager.NavigateTo("/setup", true);
46 | #endif
47 |                 //StateHasChanged();
48 |             }
49 |         }
50 |         
51 | 
52 |         protected override async Task OnInitializedAsync()
53 |         {
54 |             MainLayout.Title = "Kiosk Server";
55 | 
56 |             var port = Program.ConfigurationRoot.GetValue<int>("Port");
57 | 
58 |             foreach (var item in NetworkInterface.GetAllNetworkInterfaces())
59 |             {
60 |                 if (!item.Description.Contains("virtual", StringComparison.CurrentCultureIgnoreCase) &&
61 |                     item.NetworkInterfaceType != NetworkInterfaceType.Loopback &&
62 |                     item.OperationalStatus == OperationalStatus.Up)
63 |                 {
64 |                     foreach (var ip in item.GetIPProperties().UnicastAddresses)
65 |                     {
66 |                         if (ip.Address.AddressFamily == AddressFamily.InterNetwork)
67 |                         {
68 |                             WebServerUrls.Add($"http://{ip.Address}:{port}");
69 |                         }
70 |                     }
71 |                 }
72 |             }
73 | 
74 |             RedirectUrlList = Program.ConfigurationRoot.GetSection("RedirectUrl").Get<List<RedirectItem>>() ?? [];
75 | 
76 | #if !DEBUG
77 |             var localhost = NavigationManager.Uri.Contains("127.0.0.1");
78 | 
79 |             if (!localhost)
80 |             {
81 |                 RedirectUrlList.Clear();
82 |                 RedirectUrlList.Add(new RedirectItem
83 |                 {
84 |                     Name = "setup",
85 |                     Url = "/setup"
86 |                 });
87 |             }
88 | #endif
89 |             await base.OnInitializedAsync();
90 | 
91 | 
92 |         }
93 |     }
94 | }
95 | 


--------------------------------------------------------------------------------
/kiosk-server/kiosk-server.csproj:
--------------------------------------------------------------------------------
 1 | <Project Sdk="Microsoft.NET.Sdk.Web">
 2 | 
 3 |   <PropertyGroup>
 4 |     <TargetFramework>net10.0</TargetFramework>
 5 |     <Nullable>enable</Nullable>
 6 |     <ImplicitUsings>enable</ImplicitUsings>
 7 |     <RootNamespace>kiosk_server</RootNamespace>
 8 |     <Platforms>AnyCPU</Platforms>
 9 |   </PropertyGroup>
10 | 
11 |   <PropertyGroup>
12 |     <PreBuildEvent>
13 |     </PreBuildEvent>
14 |     <ApplicationIcon>wwwroot\favicon.ico</ApplicationIcon>
15 |     <Version>0.0.2.0</Version>
16 |     <Copyright>Copyright ©  2025</Copyright>
17 |     <Company />
18 |     <Authors />
19 |     <AssemblyVersion>0.0.2.0</AssemblyVersion>
20 |     <FileVersion>0.0.2.0</FileVersion>
21 |   </PropertyGroup>
22 | 
23 |   <Target Name="PiCopy" AfterTargets="AfterPublish">
24 |      <Exec Command="&quot;C:\Program Files (x86)\WinSCP\WinSCP.com&quot; /command &quot;open sftp://pi:raspberry@192.168.2.52/&quot; &quot;synchronize remote C:\dotnet\projects\kiosk-server\kiosk-server\bin\Release\net10.0\publish /home/pi/kiosk-server/&quot; &quot;exit&quot;" />
25 |   </Target>
26 | 
27 |   <ItemGroup>
28 |     <None Remove="log.txt" />
29 |   </ItemGroup>
30 |   
31 |   <ItemGroup>
32 |     <PackageReference Include="Microsoft.AspNetCore.Components.Analyzers" Version="10.0.0" />
33 |     <PackageReference Include="Microsoft.Extensions.Hosting.Systemd" Version="10.0.0" />
34 |     <PackageReference Include="MudBlazor" Version="8.14.0" />
35 |     <PackageReference Include="Serilog.AspNetCore" Version="9.0.0" />
36 |     <PackageReference Include="Serilog.Enrichers.Thread" Version="4.0.0" />
37 |   </ItemGroup>
38 |   
39 |   <ItemGroup>
40 |   <EmbeddedResource Include="ILLink.Descriptors.xml">
41 |   <LogicalName>ILLink.Descriptors.xml</LogicalName>
42 |   </EmbeddedResource>
43 |   </ItemGroup>
44 |   
45 |   <ItemGroup>
46 |     <None Update="kiosk-server.service">
47 |       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
48 |     </None>
49 |   </ItemGroup>
50 |   
51 |   <ItemGroup>
52 |     <Folder Include="Data\" />
53 |   </ItemGroup>
54 |   
55 |   <ItemGroup>
56 |     <Content Update="wwwroot\css\site.css">
57 |       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
58 |     </Content>
59 |     <Content Update="wwwroot\favicon.ico">
60 |       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
61 |     </Content>
62 |     <Content Update="wwwroot\icons\apple-touch-icon.png">
63 |       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
64 |     </Content>
65 |     <Content Update="wwwroot\icons\browserconfig.xml">
66 |       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
67 |     </Content>
68 |     <Content Update="wwwroot\icons\favicon-16x16.png">
69 |       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
70 |     </Content>
71 |     <Content Update="wwwroot\icons\favicon-32x32.png">
72 |       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
73 |     </Content>
74 |     <Content Update="wwwroot\icons\icon-192.png">
75 |       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
76 |     </Content>
77 |     <Content Update="wwwroot\icons\icon-512.png">
78 |       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
79 |     </Content>
80 |     <Content Update="wwwroot\icons\mstile-150x150.png">
81 |       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
82 |     </Content>
83 |     <Content Update="wwwroot\manifest.json">
84 |       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
85 |     </Content>
86 |   </ItemGroup>
87 | </Project>
88 | 


--------------------------------------------------------------------------------
/kiosk-server/Api/ApiController.cs:
--------------------------------------------------------------------------------
  1 | using kiosk_server.Metrics;
  2 | using kiosk_server.Services;
  3 | using Microsoft.AspNetCore.Authorization;
  4 | using Microsoft.AspNetCore.Mvc;
  5 | using System.Diagnostics;
  6 | 
  7 | 
  8 | namespace kiosk_server.Api
  9 | {
 10 |     [ApiController]
 11 |     [AllowAnonymous]
 12 |     public class ApiController(MyEventService myEventService) : ControllerBase
 13 |     {
 14 |         private class StatusData
 15 |         {
 16 |             public DiskMetrics Disk { get; set; } = null!;
 17 |             public TemperatureMetrics Temperature { get; set; } = null!;
 18 |             public MemoryMetrics Memory { get; set; } = null!;
 19 |             public CpuMetrics Cpu { get; set; } = null!;
 20 |         }
 21 | 
 22 |         [Route("api/status")]
 23 |         [HttpGet]
 24 |         public IActionResult Get()
 25 |         {
 26 |             var statusData = new StatusData
 27 |             {
 28 |                 Memory = MemoryMetricsClient.GetMetrics(),
 29 |                 Temperature = TemperatureMetricsClient.GetMetrics(),
 30 |                 Disk = DiskMetricsClient.GetMetrics(),
 31 |                 Cpu = CpuMetricsClient.GetMetrics()
 32 |             };
 33 |             return Ok(statusData);
 34 |         }
 35 | 
 36 |         [Route("api/shutdown")]
 37 |         [HttpPost]
 38 |         public IActionResult Shutdown()
 39 |         {
 40 |             Process.Start(new ProcessStartInfo { FileName = "sudo", Arguments = "shutdown now" });
 41 | 
 42 |             return Ok();
 43 |         }
 44 | 
 45 |         [Route("api/reboot")]
 46 | 
 47 |         [HttpPost]
 48 |         public IActionResult Reboot()
 49 |         {
 50 |             Process.Start(new ProcessStartInfo { FileName = "sudo", Arguments = "reboot now" });
 51 | 
 52 |             return Ok();
 53 |         }
 54 | 
 55 | 
 56 |         [Route("api/screenon")] // Pi 4 X11
 57 |         [HttpPost]
 58 |         public IActionResult ScreenOn()
 59 |         {
 60 |             Process.Start(new ProcessStartInfo { FileName = "sudo", Arguments = "vcgencmd display_power 1" });
 61 | 
 62 |             return Ok();
 63 |         }
 64 | 
 65 |         [Route("api/screenoff")] // Pi 4 X11
 66 | 
 67 |         [HttpPost]
 68 |         public IActionResult ScreenOff()
 69 |         {
 70 |             Process.Start(new ProcessStartInfo { FileName = "sudo", Arguments = "vcgencmd display_power 0" });
 71 | 
 72 |             return Ok();
 73 |         }
 74 | 
 75 |         [Route("api/screenon2")] // Pi 5 labwc
 76 |         [HttpPost]
 77 |         public IActionResult ScreenOn2()
 78 |         {
 79 |             Process.Start(new ProcessStartInfo { FileName = "/usr/bin/bash", Arguments = "-c \"export WAYLAND_DISPLAY=wayland-0 ; export XDG_RUNTIME_DIR=/run/user/1000 ; /usr/bin/wlr-randr --output HDMI-A-1 --on \"" })?.WaitForExit();
 80 | 
 81 |             return Ok();
 82 |         }
 83 | 
 84 |         [Route("api/screenoff2")] // Pi 5 labwc
 85 | 
 86 |         [HttpPost]
 87 |         public IActionResult ScreenOff2()
 88 |         {
 89 |             //If  monitor turns back on by itself after ~10 secs add “vc4.force_hotplug = 1”(1 = hmdi1 / 2 = hdmi2 / 3 = both) to the end of your / boot / firmware / cmdline.txt without creating a new line
 90 | 
 91 |             Process.Start(new ProcessStartInfo { FileName = "/usr/bin/bash", Arguments = "-c \"export WAYLAND_DISPLAY=wayland-0 ; export XDG_RUNTIME_DIR=/run/user/1000 ; /usr/bin/wlr-randr --output HDMI-A-1 --off \"" })?.WaitForExit(); 
 92 | 
 93 |             return Ok();
 94 |         }
 95 | 
 96 |         [Route("api/screenon3")] // Pi 5 wayfire
 97 |         [HttpPost]
 98 |         public IActionResult ScreenOn3()
 99 |         {
100 |             Process.Start(new ProcessStartInfo { FileName = "/usr/bin/bash", Arguments = "-c \"export WAYLAND_DISPLAY=wayland-1 ; export XDG_RUNTIME_DIR=/run/user/1000 ; /usr/bin/wlr-randr --output HDMI-A-1 --on; sleep 5; wtype -P F11 \"" })?.WaitForExit();
101 | 
102 |             return Ok();
103 |         }
104 | 
105 |         [Route("api/screenoff3")] // Pi 5 wayfire
106 | 
107 |         [HttpPost]
108 |         public IActionResult ScreenOff3()
109 |         {
110 |             Process.Start(new ProcessStartInfo { FileName = "/usr/bin/bash", Arguments = "-c \"export WAYLAND_DISPLAY=wayland-1 ; export XDG_RUNTIME_DIR=/run/user/1000 ; /usr/bin/wlr-randr --output HDMI-A-1 --off \"" })?.WaitForExit();
111 | 
112 |             return Ok();
113 |         }
114 | 
115 |         [Route("api/stopchromium")] 
116 | 
117 |         [HttpPost]
118 |         public IActionResult StopChromium()
119 |         {
120 |             Process.Start(new ProcessStartInfo { FileName = "/usr/bin/bash", Arguments = "-c \"ps aux | awk '/chromium/ { print $2 } ' | xargs kill  \"" })?.WaitForExit();
121 | 
122 |             return Ok();
123 |         }
124 | 
125 | 
126 |         [Route("api/navigatetourl")]
127 |         [HttpPost]
128 |         public IActionResult NavigateToUrl([FromQuery]string? url = null)
129 |         {
130 |             myEventService.NavigateToUrl(url);
131 | 
132 |             return Ok();
133 |         }
134 |     }
135 | }
136 | 


--------------------------------------------------------------------------------
/kiosk-server/Pages/Setup.razor.cs:
--------------------------------------------------------------------------------
  1 | using kiosk_server.Model;
  2 | using Microsoft.AspNetCore.Components;
  3 | using System.Diagnostics;
  4 | using System.Text.Json;
  5 | using kiosk_server.Shared;
  6 | using kiosk_server.Metrics;
  7 | using kiosk_server.Services;
  8 | 
  9 | namespace kiosk_server.Pages
 10 | {
 11 |     public partial class Setup
 12 |     {
 13 |         [Inject] private LayoutService LayoutService { get; set; } = null!;
 14 | 
 15 |         [CascadingParameter] public MainLayout Layout { get; set; } = null!;
 16 | 
 17 |         private readonly SetupModel SetupModel = new();
 18 | 
 19 |         private List<RedirectItem> RedirectUrlList { get; set; } = null!;
 20 | 
 21 |         
 22 |         protected override async Task OnAfterRenderAsync(bool firstRender)
 23 |         {
 24 |             await base.OnAfterRenderAsync(firstRender);
 25 |             if (firstRender)
 26 |             {
 27 | 
 28 |                 //StateHasChanged();
 29 |             }
 30 |         }
 31 | 
 32 |         private void RenumberRedirectUrlListIndexes()
 33 |         {
 34 |             for (var index = 0; index < RedirectUrlList.Count; index++)
 35 |             {
 36 |                 RedirectUrlList[index].Id = index + 1;
 37 |             }
 38 |         }
 39 |         
 40 |         protected override async Task OnInitializedAsync()
 41 |         {
 42 |             Layout.Title = "Kiosk Server Setup";
 43 | 
 44 |             // called twice in case server mode = serverprerendered
 45 | 
 46 |             var memoryMetricsClient = new MemoryMetricsClient();
 47 |             SetupModel.Memory = MemoryMetricsClient.GetMetrics();
 48 | 
 49 |             var temperatureMetricsClient = new TemperatureMetricsClient();
 50 |             SetupModel.Temperature = TemperatureMetricsClient.GetMetrics();
 51 | 
 52 |             var diskMetricsClient = new DiskMetricsClient();
 53 |             SetupModel.Disk = DiskMetricsClient.GetMetrics();
 54 | 
 55 |             var cpuMetricsClient = new CpuMetricsClient();
 56 |             SetupModel.Cpu = CpuMetricsClient.GetMetrics();
 57 | 
 58 |             RedirectUrlList = Program.ConfigurationRoot.GetSection("RedirectUrl").Get<List<RedirectItem>>() ?? [];
 59 | 
 60 |             RenumberRedirectUrlListIndexes();
 61 | 
 62 |             RedirectUrlList.Add(new RedirectItem
 63 |             {
 64 |                 Id = RedirectUrlList.Count + 1,
 65 |                 Name = "",
 66 |                 Url = ""
 67 |             });
 68 | 
 69 |             await base.OnInitializedAsync();
 70 | 
 71 |         }
 72 | 
 73 |         private async Task UpdateAppSettings()
 74 |         {
 75 | #if DEBUG
 76 |             var path = Path.Combine(Environment.CurrentDirectory, "appsettings.json");
 77 | #else
 78 |             var path = Path.Combine(AppContext.BaseDirectory, "appsettings.json");
 79 | #endif
 80 | 
 81 |             var configJson = await File.ReadAllTextAsync(path);
 82 |             var config = JsonSerializer.Deserialize<Dictionary<string, object>>(configJson);
 83 | 
 84 |             if (config != null)
 85 |             {
 86 |                 config["RedirectUrl"] = RedirectUrlList
 87 |                     .Where(x => !string.IsNullOrEmpty(x.Name) && !string.IsNullOrEmpty(x.Url)).ToArray();
 88 | 
 89 |                 var updatedConfigJson =
 90 |                     JsonSerializer.Serialize(config, new JsonSerializerOptions { WriteIndented = true });
 91 |                 await File.WriteAllTextAsync(path, updatedConfigJson);
 92 | 
 93 |                 Program.ConfigurationRoot.Reload();
 94 |             }
 95 |         }
 96 | 
 97 |         private async Task CommittedItemChanges(RedirectItem item)
 98 |         {
 99 |             if (!string.IsNullOrEmpty(item.Name) && !string.IsNullOrEmpty(item.Url))
100 |             {
101 |                 RedirectUrlList[item.Id - 1].Name = item.Name;
102 |                 RedirectUrlList[item.Id - 1].Url = item.Url;
103 | 
104 |                 if (item.Id == RedirectUrlList.Count)
105 |                 {
106 |                     RedirectUrlList.Add(new RedirectItem
107 |                     {
108 |                         Id = RedirectUrlList.Count + 1,
109 |                         Name = "",
110 |                         Url = ""
111 |                     });
112 |                 }
113 | 
114 |                 await UpdateAppSettings();
115 | 
116 |                 StateHasChanged();
117 |             }
118 |         }
119 | 
120 |         private async Task DeleteUrl(RedirectItem item)
121 |         {
122 | 
123 |             RedirectUrlList.RemoveAt(item.Id - 1);
124 | 
125 |             RenumberRedirectUrlListIndexes();
126 | 
127 |             await UpdateAppSettings();
128 | 
129 |             StateHasChanged();
130 | 
131 |         }
132 | 
133 |         private static void HandleReboot()
134 |         {
135 |             Process.Start(new ProcessStartInfo { FileName = "sudo", Arguments = "reboot now" });
136 |         }
137 | 
138 |         private static void HandleShutdown()
139 |         {
140 |             Process.Start(new ProcessStartInfo { FileName = "sudo", Arguments = "shutdown now" });
141 |         }
142 |     }
143 | }
144 | 


--------------------------------------------------------------------------------
/kiosk-server/Program.cs:
--------------------------------------------------------------------------------
  1 | using kiosk_server.Services;
  2 | using Microsoft.AspNetCore.ResponseCompression;
  3 | using MudBlazor.Services;
  4 | using System.Net;
  5 | using System.Net.NetworkInformation;
  6 | using System.Net.Sockets;
  7 | using Serilog;
  8 | using Serilog.Core;
  9 | using Serilog.Events;
 10 | 
 11 | 
 12 | 
 13 | class Program
 14 | {
 15 |     public static IConfigurationRoot ConfigurationRoot { get; set; } = null!;
 16 | 
 17 |     private class ThreadIdEnricher : ILogEventEnricher
 18 |     {
 19 |         public void Enrich(LogEvent logEvent, ILogEventPropertyFactory propertyFactory)
 20 |         {
 21 |             logEvent.AddPropertyIfAbsent(propertyFactory.CreateProperty(
 22 |                 "ThreadID", Environment.CurrentManagedThreadId.ToString("D4")));
 23 |         }
 24 |     }
 25 | 
 26 |     static void Main(string[] args)
 27 |     {
 28 |         MainAsync(args).GetAwaiter().GetResult();
 29 |     }
 30 |     
 31 |     static async Task MainAsync(string[] args)
 32 |     {
 33 | 
 34 |         var builder = WebApplication.CreateBuilder(args);
 35 | 
 36 |         ConfigurationRoot = builder.Configuration;
 37 | 
 38 |         builder.Host.UseSystemd();
 39 | 
 40 |         builder.Host.UseSerilog();
 41 |         //builder.Logging.AddSerilog();
 42 | 
 43 |         Log.Logger = new LoggerConfiguration()
 44 |             .Enrich.With(new ThreadIdEnricher())
 45 |             .ReadFrom.Configuration(configuration: ConfigurationRoot)
 46 |             .CreateLogger();
 47 | 
 48 |         Log.Information("Starting up!");
 49 | 
 50 |         Log.Information("Logging enabled");
 51 | 
 52 |         builder.WebHost.UseUrls();
 53 | 
 54 |         builder.WebHost.ConfigureKestrel(serverOptions =>
 55 |         {
 56 |             var port = ConfigurationRoot.GetValue<int>("Port");
 57 | 
 58 |             serverOptions.Listen(IPAddress.Loopback, port);
 59 | 
 60 |             foreach (var item in NetworkInterface.GetAllNetworkInterfaces())
 61 |             {
 62 |                 if (!item.Description.Contains("virtual", StringComparison.CurrentCultureIgnoreCase) &&
 63 |                     item.NetworkInterfaceType != NetworkInterfaceType.Loopback &&
 64 |                     item.OperationalStatus == OperationalStatus.Up)
 65 |                 {
 66 |                     foreach (var ip in item.GetIPProperties().UnicastAddresses)
 67 |                     {
 68 |                         if (ip.Address.AddressFamily == AddressFamily.InterNetwork)
 69 |                         {
 70 |                             serverOptions.Listen(ip.Address, port);
 71 |                         }
 72 |                     }
 73 |                 }
 74 |             }
 75 | 
 76 |         });
 77 | 
 78 |         builder.WebHost.UseStaticWebAssets();
 79 | 
 80 |         builder.Services.AddHttpClient();
 81 | 
 82 |         // Add services to the container.
 83 |         builder.Services.AddRazorPages();
 84 |         builder.Services.AddServerSideBlazor();
 85 |         builder.Services.AddMudServices();
 86 | 
 87 |         // Add services to manage API controller
 88 |         builder.Services.AddControllers();
 89 | 
 90 |         builder.Services.AddCors();
 91 | 
 92 |         //builder.Services.AddSingleton<WeatherForecastService>();
 93 | 
 94 |         builder.Services.AddScoped<LayoutService>();
 95 | 
 96 |         builder.Services.AddSingleton<MyEventService>();
 97 | 
 98 |         builder.Services.AddResponseCompression(opts =>
 99 |         {
100 |             opts.MimeTypes = ResponseCompressionDefaults.MimeTypes.Concat(
101 |                 ["application/octet-stream"]);
102 |         });
103 | 
104 |         var app = builder.Build();
105 | 
106 |         if (!app.Environment.IsDevelopment()) // response compression currently conflicts with dotnet watch browser reload
107 |         {
108 |             app.UseResponseCompression();
109 |         }
110 | 
111 |         if (app.Environment.IsDevelopment())
112 |         {
113 |             app.UseDeveloperExceptionPage();
114 |         }
115 |         else
116 |         {
117 |             app.UseExceptionHandler("/Error");
118 |         }
119 | 
120 | /*
121 | var strExeFilePath = Assembly.GetEntryAssembly().Location;
122 | var exePath = Path.GetDirectoryName(strExeFilePath);
123 | 
124 | app.UseStaticFiles(new StaticFileOptions
125 | {
126 |     FileProvider = new PhysicalFileProvider(
127 |         Path.Combine(exePath, @"wwwroot")),
128 | });*/
129 | 
130 |         app.MapStaticAssets();
131 | 
132 |         app.UseRouting();
133 | 
134 |         // global cors policy
135 |         app.UseCors(x => x
136 |             .AllowAnyMethod()
137 |             .AllowAnyHeader()
138 |             .SetIsOriginAllowed(origin => true) // allow any origin
139 |             .AllowCredentials()); // allow credentials
140 | 
141 |         app.MapControllers();
142 | 
143 |         app.MapBlazorHub();
144 |         app.MapFallbackToPage("/_Host");
145 | 
146 |         /*
147 |         app.UseEndpoints(endpoints =>
148 |         {
149 |             endpoints.MapBlazorHub();
150 |             //endpoints.MapHub<MyHub>("/myhub");
151 |             endpoints.MapFallbackToPage("/_Host");
152 |         });*/
153 |         /*
154 |         app.MapGet("/aaa/bbb", () =>
155 |         {
156 |             string[] data = new string[] {
157 |                 "Hello World!",
158 |                 "Hello Galaxy!",
159 |                 "Hello Universe!"
160 |             };
161 |             return Results.Ok(data);
162 |         });*/
163 | 
164 |         await app.RunAsync();
165 |     }
166 | }
167 | 


--------------------------------------------------------------------------------
/kiosk-server/Metrics/CPUMetrics.cs:
--------------------------------------------------------------------------------
  1 | using System.Diagnostics;
  2 | using System.Runtime.InteropServices;
  3 | using System.Text.RegularExpressions;
  4 | 
  5 | namespace kiosk_server.Metrics
  6 | {
  7 |    
  8 |     public class CpuMetrics
  9 |     {
 10 |         public string OsDescription { get; set; } = null!;
 11 |         public string OsName { get; set; } = null!;
 12 | 
 13 |         public string CpuModel { get; set; } = null!;
 14 |         public string CpuModelName { get; set; } = null!;
 15 |         public string CpuHardware { get; set; } = null!;
 16 | 
 17 |         public double CpuUsage { get; set; }
 18 | 
 19 |     }
 20 | 
 21 |     public class CpuMetricsClient
 22 |     {
 23 |         public static CpuMetrics GetMetrics()
 24 |         {
 25 |             return IsLinux() ? GetLinuxMetrics() : GetWindowsMetrics();
 26 |         }
 27 | 
 28 |         private static bool IsLinux()
 29 |         {
 30 |             var isLinux = RuntimeInformation.IsOSPlatform(OSPlatform.OSX) ||
 31 |                          RuntimeInformation.IsOSPlatform(OSPlatform.Linux);
 32 | 
 33 |             return isLinux;
 34 |         }
 35 | 
 36 |         private static CpuMetrics GetWindowsMetrics()
 37 |         {
 38 |             var metrics = new CpuMetrics
 39 |             {
 40 |                 OsDescription = RuntimeInformation.OSDescription
 41 |             };
 42 | 
 43 |             return metrics;
 44 |         }
 45 | 
 46 |         public class RegExMatch
 47 |         {
 48 |             public Regex regex;
 49 |             public Action<string> updateValue;
 50 | 
 51 |             private RegExMatch(string pattern, Action<string> update)
 52 |             {
 53 |                 regex = new Regex(pattern, RegexOptions.Compiled);
 54 |                 updateValue = update;
 55 |             }
 56 | 
 57 |             public static RegExMatch CreateInstance(string pattern, Action<string> update)
 58 |             {
 59 |                 return new RegExMatch(pattern, update);
 60 |             }
 61 |         }
 62 | 
 63 | 
 64 |         private static void HandleRegExMatches(ref string[] lines,ref RegExMatch[] matches)
 65 |         {
 66 | 
 67 |             foreach (var line in lines)
 68 |             {
 69 |                 foreach (var matchItem in matches)
 70 |                 {
 71 |                     var match = matchItem.regex.Match(line);
 72 |                     if (match.Groups[0].Success)
 73 |                     {
 74 |                         var value = match.Groups[1].Value;
 75 |                         matchItem.updateValue(value);
 76 |                     }
 77 |                 }
 78 |             }
 79 |         }
 80 | 
 81 |         /*private static string GetLinuxOsName()
 82 |         {
 83 |             var prettyName = "";
 84 | 
 85 |             var releaseLines = File.ReadAllLines(@"/etc/os-release");
 86 | 
 87 |             var releaseMatches = new[] {
 88 |                 RegExMatch.CreateInstance("^PRETTY_NAME+=\"(.+)\"", value => prettyName = value),
 89 |             };
 90 | 
 91 |             HandleRegExMatches(ref releaseLines, ref releaseMatches);
 92 |             
 93 |             return prettyName;
 94 |         }*/
 95 | 
 96 |         // https://github.com/MhyrAskri/Linux-CPU-Usage/blob/master/CpuUsage.cs
 97 |         private static double GetLinuxCpuUsage()
 98 |         {
 99 |             var output = "";
100 | 
101 |             var info = new ProcessStartInfo("top -b -n 1")
102 |             {
103 |                 FileName = "/bin/bash",
104 |                 Arguments = "-c \"top -b -n 1\"",
105 |                 RedirectStandardOutput = true
106 |             };
107 | 
108 |             using (var process = Process.Start(info))
109 |             {
110 |                 output = process?.StandardOutput.ReadToEnd();
111 |             }
112 | 
113 |             var lines = output?.Split("\n");
114 |             if (lines != null)
115 |             {
116 |                 var cpuLine2 = lines[2].Split(",", StringSplitOptions.RemoveEmptyEntries);
117 |                 var firstPart = cpuLine2[0].Split(":", StringSplitOptions.RemoveEmptyEntries);
118 |                 var secondPart = cpuLine2[1].Split("s", StringSplitOptions.RemoveEmptyEntries);
119 |                 var thirdPart = cpuLine2[2].Split("n", StringSplitOptions.RemoveEmptyEntries);
120 | 
121 |                 var cpuUsage = double.Parse(firstPart[1].Split("u", StringSplitOptions.RemoveEmptyEntries)[0]) +
122 |                                   double.Parse(secondPart[0]) +
123 |                                   double.Parse(thirdPart[0]);
124 | 
125 |                 return cpuUsage;
126 | 
127 |             }
128 | 
129 |             return 0;
130 |         }
131 | 
132 |         private static CpuMetrics GetLinuxMetrics()
133 |         {
134 |             var metrics = new CpuMetrics
135 |             {
136 |                 OsDescription = RuntimeInformation.OSDescription
137 |                 //OsName = GetLinuxOsName()
138 |             };
139 | 
140 |             var cpuInfoLines = File.ReadAllLines("/proc/cpuinfo");
141 | 
142 |             var cpuInfoMatches = new[] {
143 |                 RegExMatch.CreateInstance(@"^Model\s+:\s+(.+)", value => metrics.CpuModel = value),
144 |                 //RegExMatch.CreateInstance(@"^model name\s+:\s+(.+)", value => metrics.CpuModelName = value),
145 |                 RegExMatch.CreateInstance(@"^Hardware\s+:\s+(.+)", value => metrics.CpuHardware = value),
146 |             };
147 | 
148 |             HandleRegExMatches(ref cpuInfoLines, ref cpuInfoMatches);
149 | 
150 |             var output = "";
151 | 
152 |             var info = new ProcessStartInfo("lscpu")
153 |             {
154 |                 FileName = "/bin/bash",
155 |                 Arguments = "-c \"lscpu\"",
156 |                 RedirectStandardOutput = true
157 |             };
158 | 
159 |             using (var process = Process.Start(info))
160 |             {
161 |                 output = process?.StandardOutput.ReadToEnd();
162 |             }
163 | 
164 |             var lscpuLines = output?.Split("\n") ;
165 | 
166 |             if (lscpuLines != null)
167 |             {
168 |                 var lscpuMatches = new[]  {
169 |                         RegExMatch.CreateInstance(@"^Model name:\s+(.+)", value => metrics.CpuModelName = value)
170 |                     };
171 | 
172 |                 HandleRegExMatches(ref lscpuLines, ref lscpuMatches);
173 | 
174 |             }
175 | 
176 |             metrics.CpuUsage = GetLinuxCpuUsage();
177 |             
178 |             return metrics;
179 |         }
180 |     }
181 | }
182 | 


--------------------------------------------------------------------------------
/kiosk-server/Metrics/TemperatureMetrics.cs:
--------------------------------------------------------------------------------
  1 | using System.Diagnostics;
  2 | using System.Globalization;
  3 | using System.Runtime.InteropServices;
  4 | #pragma warning disable IDE0057
  5 | 
  6 | namespace kiosk_server.Metrics
  7 | {
  8 |     // from https://github.com/VincentPestana/RpiStats
  9 | 
 10 |     public class TemperatureMetrics
 11 |     {
 12 |         public float CpuTemperature { get; set; }
 13 | 
 14 |         public string ThrottledState { get; set; } = null!;
 15 | 
 16 |     }
 17 | 
 18 |     public class TemperatureMetricsClient
 19 |     {
 20 |         public static TemperatureMetrics GetMetrics()
 21 |         {
 22 |             return IsLinux() ? GetLinuxMetrics() : GetWindowsMetrics();
 23 |         }
 24 | 
 25 |         private static bool IsLinux()
 26 |         {
 27 |             var isLinux = RuntimeInformation.IsOSPlatform(OSPlatform.OSX) ||
 28 |                          RuntimeInformation.IsOSPlatform(OSPlatform.Linux);
 29 | 
 30 |             return isLinux;
 31 |         }
 32 | 
 33 |         private static TemperatureMetrics GetWindowsMetrics()
 34 |         {
 35 |             var metrics = new TemperatureMetrics();
 36 | 
 37 |             // todo ???
 38 | 
 39 |             /*
 40 |             Double CPUtprt = 0;
 41 |             System.Management.ManagementObjectSearcher mos = new System.Management.ManagementObjectSearcher(@"root\WMI", "Select * From MSAcpi_ThermalZoneTemperature");
 42 |             foreach (System.Management.ManagementObject mo in mos.Get())
 43 |             {
 44 |                 CPUtprt = Convert.ToDouble(Convert.ToDouble(mo.GetPropertyValue("CurrentTemperature").ToString()) - 2732) / 10;
 45 |                 Console.WriteLine("CPU temp : " + CPUtprt.ToString() + " °C");
 46 |             }*/
 47 | 
 48 |             return metrics;
 49 |         }
 50 | 
 51 |         private enum ThrottledState : long
 52 |         {
 53 |             UnderVoltageDetected = 0x1L,
 54 |             FrequencyCapped = 0x2L,
 55 |             CurrentlyThrottled = 0x4L,
 56 |             SoftTemperatureLimit = 0x8L,
 57 | 
 58 |             UnderVoltHasOccuredSinceBoot = 0x10000L,
 59 |             FrequencyCapHasOccured = 0x20000L,
 60 |             ThrottlingHasOccured = 0x40000L,
 61 |             SoftTemperatureLimitHasOccured = 0x80000L
 62 |         }
 63 |         /*
 64 |         private static string FormatThrottledState(string throttledStateCallOutput)
 65 |         {
 66 |             var enumState = Enum.Parse<ThrottledState>(throttledStateCallOutput);
 67 | 
 68 |             return enumState.ToString();
 69 |         }*/
 70 | 
 71 |         private static TemperatureMetrics GetLinuxMetrics()
 72 |         {
 73 |             var output = "";
 74 | 
 75 |             var info = new ProcessStartInfo
 76 |             {
 77 |                 FileName = "/bin/bash",
 78 |                 Arguments = "-c \"/usr/bin/vcgencmd measure_temp\"",
 79 |                 RedirectStandardOutput = true,
 80 |                 UseShellExecute = false,
 81 |                 CreateNoWindow = true,
 82 |             };
 83 | 
 84 |             using (var process = Process.Start(info))
 85 |             {
 86 |                 output = process?.StandardOutput.ReadToEnd();
 87 |             }
 88 | 
 89 |             var metrics = new TemperatureMetrics();
 90 | 
 91 |             if (!string.IsNullOrEmpty(output))
 92 |             {
 93 |                 var temperatureOutput = output
 94 |                     .Substring(output.IndexOf('=') + 1,
 95 |                         output.IndexOf('\'', StringComparison.Ordinal) - (output.IndexOf('=') + 1));
 96 | 
 97 |                 if (float.TryParse(temperatureOutput, NumberStyles.Number, CultureInfo.CreateSpecificCulture("en-US"), out var cpuTemp))
 98 |                 {
 99 |                     metrics.CpuTemperature = cpuTemp;
100 |                 }
101 |             }
102 | 
103 |             var info2 = new ProcessStartInfo
104 |             {
105 |                 FileName = "/bin/bash",
106 |                 Arguments = "-c \"/usr/bin/vcgencmd get_throttled\"",
107 |                 RedirectStandardOutput = true,
108 |                 UseShellExecute = false,
109 |                 CreateNoWindow = true,
110 |             };
111 | 
112 |             using (var process2 = Process.Start(info2))
113 |             {
114 |                 output = process2?.StandardOutput.ReadToEnd();
115 |             }
116 | 
117 |             if (!string.IsNullOrEmpty(output))
118 |             {
119 |                 var throttledStateList = new List<string>();
120 | 
121 |                 output = output.Trim();
122 |                 var throttledOutput = Convert.ToInt64(output.Substring(output.IndexOf("=0x", StringComparison.Ordinal) + 1), 16);
123 | 
124 |                 if ((throttledOutput & (long)ThrottledState.UnderVoltageDetected) > 0)
125 |                 {
126 |                     throttledStateList.Add("Undervoltage");
127 |                 }
128 |                 if ((throttledOutput & (long)ThrottledState.FrequencyCapped) > 0)
129 |                 {
130 |                     throttledStateList.Add("FrequencyCapped");
131 |                 }
132 |                 if ((throttledOutput & (long)ThrottledState.CurrentlyThrottled) > 0)
133 |                 {
134 |                     throttledStateList.Add("CurrentlyThrottled");
135 |                 }
136 |                 if ((throttledOutput & (long)ThrottledState.SoftTemperatureLimit) > 0)
137 |                 {
138 |                     throttledStateList.Add("SoftTemperatureLimit");
139 |                 }
140 |                 if ((throttledOutput & (long)ThrottledState.UnderVoltHasOccuredSinceBoot) > 0)
141 |                 {
142 |                     throttledStateList.Add("UnderVoltHasOccuredSinceBoot");
143 |                 }
144 |                 if ((throttledOutput & (long)ThrottledState.FrequencyCapHasOccured) > 0)
145 |                 {
146 |                     throttledStateList.Add("FrequencyCapHasOccured");
147 |                 }
148 |                 if ((throttledOutput & (long)ThrottledState.ThrottlingHasOccured) > 0)
149 |                 {
150 |                     throttledStateList.Add("ThrottlingHasOccured");
151 |                 }
152 |                 if ((throttledOutput & (long)ThrottledState.SoftTemperatureLimitHasOccured) > 0)
153 |                 {
154 |                     throttledStateList.Add("SoftTemperatureLimitHasOccured");
155 |                 }
156 | 
157 |                 metrics.ThrottledState = string.Join(", ", throttledStateList);
158 |             }
159 | 
160 |             return metrics;
161 | 
162 | 
163 |         }
164 |     }
165 | }
166 | 


--------------------------------------------------------------------------------
/kiosk-server/Pages/Setup.razor:
--------------------------------------------------------------------------------
  1 | @page "/setup"
  2 | @using kiosk_server.Services
  3 | 
  4 | <MudPaper Class="pa-4 ma-4 flex-grow-1 flex-shrink-1"  Elevation="10">
  5 |  
  6 | 
  7 |     <MudDataGrid T="RedirectItem" SortMode="SortMode.None" Items="@RedirectUrlList" ReadOnly="false" EditMode="DataGridEditMode.Cell"
  8 |                  CommittedItemChanges="@CommittedItemChanges"
  9 |                   Bordered="true" Dense="false" Striped="true" Elevation="4">
 10 |         <ToolBarContent>
 11 |             <MudText Typo="Typo.h6">Kiosk Urls</MudText>
 12 |             <MudSpacer />
 13 |             <MudButton ButtonType="ButtonType.Button" Variant="Variant.Filled" Color="@(LayoutService.IsDarkMode ? Color.Dark : Color.Primary)" Class="ml-auto" @onclick="@HandleReboot">Reboot</MudButton>
 14 |             <MudButton ButtonType="ButtonType.Button" Variant="Variant.Filled" Color="@(LayoutService.IsDarkMode ? Color.Dark : Color.Primary)" Class="ml-5 mr-1" @onclick="@HandleShutdown">Shutdown</MudButton>
 15 | 
 16 | 
 17 |         </ToolBarContent>
 18 |         <Columns>
 19 |             <PropertyColumn T="RedirectItem" TProperty="int"  Property="x => x.Id" Editable="false" HeaderStyle="width:1%" CellStyle="text-align:center;"/>
 20 |             <PropertyColumn T="RedirectItem" TProperty="string" Property="x => x.Name" HeaderStyle="Width:20%">
 21 |                 <EditTemplate>
 22 |                     <MudTextField T="string" Value="context.Item.Name" ValueChanged="@(async (e) => { context.Item.Name = e;await CommittedItemChanges(context.Item); })" Margin="@Margin.Dense" Style="margin-top:0" />
 23 |                 </EditTemplate>
 24 |             </PropertyColumn>
 25 |             <PropertyColumn T="RedirectItem" TProperty="string" Property="x => x.Url">
 26 |                 <EditTemplate>
 27 |                     <MudTextField T="string" Value="context.Item.Url" ValueChanged="@(async (e) => { context.Item.Url = e;await CommittedItemChanges(context.Item); })" Margin="@Margin.Dense" Style="margin-top:0" />
 28 |                 </EditTemplate>
 29 |             </PropertyColumn>
 30 | 
 31 |             <TemplateColumn T="RedirectItem"  Editable="false" Title="Action" HeaderStyle="width:1%" CellStyle="text-align:center;">
 32 |                 <CellTemplate>
 33 |                     @if (!string.IsNullOrEmpty(context.Item.Url))
 34 |                     {
 35 |                         <MudIconButton Size="@Size.Small" Icon="@Icons.Material.Outlined.Delete" title="Delete" OnClick="@(async (e) => { await DeleteUrl(context.Item); })"/>
 36 |                     }
 37 | 
 38 |                 </CellTemplate>
 39 |             </TemplateColumn>
 40 | 
 41 |         </Columns>
 42 |     </MudDataGrid>
 43 | 
 44 | 
 45 | 
 46 | 
 47 |     <MudCard Elevation="4">
 48 |         <MudCardHeader Class="pb-0 mt-4">
 49 |             <CardHeaderContent >
 50 |                 <MudText Typo="Typo.h6">Memory</MudText>
 51 |             </CardHeaderContent>
 52 |          
 53 |         </MudCardHeader>
 54 |         <MudCardContent Class ="pa-0">
 55 |             <MudSimpleTable Elevation="0" Class="pa-0">
 56 |                 <thead>
 57 |                 <tr>
 58 |                     <th style="width:30%">Total</th>
 59 |                     <th style ="width:30%">Used</th>
 60 |                     <th>Free</th>
 61 |                 </tr>
 62 |                 </thead>
 63 |                 <tbody>
 64 |                 <tr>
 65 |                     <td>
 66 |                         @SetupModel.Memory.TotalMemory.ToString("N0") MB
 67 |                     </td>
 68 |                     <td>
 69 |                         @SetupModel.Memory.UsedMemory.ToString("N0") MB
 70 |                     </td>
 71 |                     <td>
 72 |                         @SetupModel.Memory.FreeMemory.ToString("N0") MB
 73 |                     </td>
 74 |                 </tr>
 75 |                 </tbody>
 76 |             </MudSimpleTable>
 77 |         </MudCardContent>
 78 |     </MudCard>
 79 | 
 80 |     <MudCard Elevation="4">
 81 |         <MudCardHeader Class="pb-0 mt-4">
 82 |             <CardHeaderContent >
 83 |                 <MudText Typo="Typo.h6">Disk Space</MudText>
 84 |             </CardHeaderContent>
 85 |          
 86 |         </MudCardHeader>
 87 |         <MudCardContent Class ="pa-0">
 88 |             <MudSimpleTable Elevation="0" Class="pa-0">
 89 |                 <thead>
 90 |                 <tr>
 91 |                     <th style ="width:30%">Total</th>
 92 |                     <th style ="width:30%">Used</th>
 93 |                     <th>Free</th>
 94 |                 </tr>
 95 |                 </thead>
 96 |                 <tbody>
 97 |                 <tr>
 98 |                     <td>
 99 |                         @SetupModel.Disk.TotalDiskSpace.ToString("N1") GB
100 |                     </td>
101 |                     <td>
102 |                         @((SetupModel.Disk.TotalDiskSpace -SetupModel.Disk.AvailableDiskSpace).ToString("N1")) GB
103 |                     </td>
104 |                     <td>
105 |                         @SetupModel.Disk.AvailableDiskSpace.ToString("N1") GB
106 |                     </td>
107 |                 </tr>
108 |                 </tbody>
109 |             </MudSimpleTable>
110 |         </MudCardContent>
111 |     </MudCard>
112 |     
113 |     @if (SetupModel.Temperature.CpuTemperature > 0)
114 |     {
115 |         <MudCard Elevation="4">
116 |             <MudCardHeader Class="pb-0 mt-4">
117 |                 <CardHeaderContent >
118 |                     <MudText Typo="Typo.h6">CPU</MudText>
119 |                 </CardHeaderContent>
120 |          
121 |             </MudCardHeader>
122 |             <MudCardContent Class ="pa-0">
123 |                 <MudSimpleTable Elevation="0" Class="pa-0">
124 |                     <thead>
125 |                     <tr>
126 |                         <th style ="width:30%">Usage</th>
127 |                         <th style ="width:30%">Temperature</th>
128 |                         <th>State</th>
129 |                     </tr>
130 |                     </thead>
131 |                     <tbody>
132 |                     <tr>
133 |                         <td>
134 |                             @SetupModel.Cpu.CpuUsage.ToString("N1") %
135 |                         </td>
136 |                         <td>
137 |                             @SetupModel.Temperature.CpuTemperature.ToString("N1") &deg;C
138 |                         </td>
139 |                         <td>
140 |                             @(string.IsNullOrEmpty(SetupModel.Temperature.ThrottledState) ? "Normal" : SetupModel.Temperature.ThrottledState)
141 |                         </td>
142 |                     </tr>
143 |                     </tbody>
144 |                 </MudSimpleTable>
145 |             </MudCardContent>
146 |         </MudCard>
147 |     }
148 | 
149 |     <MudCard Elevation="4">
150 |         <MudCardHeader Class="mt-4">
151 |             <CardHeaderContent >
152 |                 <MudText Typo="Typo.h6">@SetupModel.Cpu.OsDescription</MudText>
153 |                 @if (!string.IsNullOrEmpty(SetupModel.Cpu.OsName))
154 |                 {
155 |                     <br/>
156 |                     <MudText Typo="Typo.h6">@SetupModel.Cpu.OsName</MudText>
157 |                 }
158 |                 @if (!string.IsNullOrEmpty(SetupModel.Cpu.CpuHardware))
159 |                 {
160 |                     <br />
161 |                     <MudText Typo="Typo.h6">@SetupModel.Cpu.CpuHardware</MudText>
162 |                 }
163 |                 @if (!string.IsNullOrEmpty(SetupModel.Cpu.CpuModel))
164 |                 {
165 |                     <br />
166 |                     <MudText Typo="Typo.h6">@SetupModel.Cpu.CpuModel</MudText>
167 |                 }
168 |                 @if (!string.IsNullOrEmpty(SetupModel.Cpu.CpuModelName))
169 |                 {
170 |                     <br />
171 |                     <MudText Typo="Typo.h6">@SetupModel.Cpu.CpuModelName</MudText>
172 |                 }
173 |             </CardHeaderContent>
174 |          
175 |         </MudCardHeader>
176 |     </MudCard>
177 |  
178 | </MudPaper>
179 | 


--------------------------------------------------------------------------------
/.gitignore:
--------------------------------------------------------------------------------
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360 | .ionide/
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362 | # Fody - auto-generated XML schema
363 | FodyWeavers.xsd
364 | 
365 | log.txt
366 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
  1 | # kiosk-server
  2 | 
  3 | Touch screen kiosk with multi-platform remote control web server, using blazor and net9.
  4 | 
  5 | Display when no Kiosk URL is defined yet:
  6 | 
  7 | ![touch screen](https://i.imgur.com/bTQtqSe.png)
  8 | 
  9 | When using the external setup URL (http://x.x.x.x:5000/setup, no password authentication) you can enter one or more Kiosk URLs and then either reboot or shutdown the raspberry pi.
 10 | 
 11 | The Kiosk URL is only shown after a reboot.
 12 | 
 13 | If there is only one Kiosk URL, then the software will redirect to that URL at startup.
 14 | 
 15 | If there is more than one Kiosk URL defined, then the software will redirect to an internal page (http://x.x.x.x:5000/kiosk) that has a tab bar at the top and an iframe filling the rest of the screen. 
 16 | 
 17 | The contents of the iframe is changed to the Kiosk URL, after pressing the tab button with the name of the Kiosk URL.
 18 | 
 19 | If you see a blank iframe with an error like 'www.msn.com refused to connect.' :
 20 | That means that the remote web server does not allow rendering inside an iframe. (via the X-Frame-Options http response header)
 21 | 
 22 | You won't have this problem, if you define just one Kiosk URL.
 23 | 
 24 | There is also a page http://x.x.x.x:5000/blank that shows a blank page.
 25 | 
 26 | There is also a (GET) rest api endpoint (http://x.x.x.x:5000/api/status) that returns a JSON object, containing system status data.
 27 | 
 28 | There are also (POST) rest api endpoints (http://x.x.x.x:5000/api/shutdown , http://x.x.x.x:5000/api/reboot , http://x.x.x.x:5000/api/screenoff and http://x.x.x.x:5000/api/screenon) NOTE that there is no authentication!
 29 | 
 30 | Also, a (POST) rest api endpoint has been added (http://x.x.x.x:5000/api/stopchromium) , that kills the chromium process.
 31 | 
 32 | There is also a (POST) rest api endpoint http://x.x.x.x:5000/api/navigatetourl?url=xxxxxxx that ONLY works, when the kiosk screen is being displayed.
 33 | 
 34 | When this url is POSTed, with ANY url as query parameter (e.g. http://x.x.x.x:5000/api/navigatetourl?url=http://x.x.x.x:5000/blank) that page will be loaded into the kiosk iframe and the tab bar at the top is hidden.
 35 | 
 36 | When this url is POSTed, without any url as query parameter (e.g. http://x.x.x.x:5000/api/navigatetourl?url=) then the kiosk is reloaded and the tab bar at the top reappears.
 37 | 
 38 | ![touch screen](https://i.imgur.com/Wzp5kqm.png)
 39 | 
 40 | ![touch screen](https://i.imgur.com/cXrHx23.png)
 41 | 
 42 | ## Test Environment
 43 | 
 44 | **This software works with any kind of display. I have been testing with ultra-wide displays :**
 45 | 
 46 | 3D-printed enclosures, for these displays, can be found : https://www.printables.com/@mhwlng_888536/collections/920676
 47 | 
 48 | Touch Display 1920x480 (8.8 inch, IPS panel, default orientation is portrait):
 49 | 
 50 | https://www.aliexpress.com/item/1005003014364673.html
 51 | 
 52 | ![touch screen](https://i.imgur.com/QWs2S9S.jpg)
 53 | 
 54 | ![touch screen](https://i.imgur.com/GfcSTTd.jpg)
 55 | 
 56 | The 3 Dials have an ESP32 processor and are made by M5Stack :
 57 | 
 58 | https://shop.m5stack.com/products/m5stack-dial-esp32-s3-smart-rotary-knob-w-1-28-round-touch-screen
 59 | 
 60 | ![touch screen](https://i.imgur.com/0NSFRaz.jpg)
 61 | 
 62 | Touch Display 1920x515 (12.6 inch, IPS panel):
 63 | 
 64 | https://www.aliexpress.com/item/1005001966967133.html
 65 | 
 66 | [3d printed modular dashboard](https://www.printables.com/@mhwlng_888536/collections/920676)
 67 | 
 68 | ![touch screen](https://i.imgur.com/hFIeCUD.jpg)
 69 | 
 70 | ![touch screen](https://i.imgur.com/4YI13mJ.jpg)
 71 | 
 72 | ![touch screen](https://i.imgur.com/erLvZY7.jpg)
 73 | 
 74 | Touch display 3840x1100 (14 inch, IPS panel, uses usb-c connector for power and touch screen):
 75 | 
 76 | https://www.aliexpress.com/item/1005003332731770.html
 77 | 
 78 | [3d printed modular dashboard](https://www.printables.com/@mhwlng_888536/collections/920676)
 79 | 
 80 | ![touch screen](https://i.imgur.com/MjmCNvf.jpg)
 81 | 
 82 | ![touch screen](https://i.imgur.com/ysxHEvS.jpg)
 83 | 
 84 | Raspberry Pi Compute Module 4 (I only have the 8GB RAM / 16GB EMMC version)
 85 | 
 86 | The Waveshare CM4-NANO-B expansion board (also available on Amazon)
 87 | 
 88 | https://www.waveshare.com/wiki/CM4-NANO-B
 89 | 
 90 | The USB-C port is connected to the 5V power. (Also used to put the OS image onto the EMMC flash.)
 91 | 
 92 | The USB-A port is connected to the display. (To power it and also for the touch screen)
 93 | 
 94 | The HDMI port is connected to the display HDMI port.
 95 | 
 96 | Pressing the pushbutton (GPIO21) shuts down the CM4
 97 | 
 98 | # Installation Instructions
 99 | 
100 | I mainly used this document as a guideline: (note that for the CM4 it's not exactly the same)
101 | 
102 | https://gist.github.com/fjctp/210f4e870f913416b8d0e17fd36153c2
103 | 
104 | 
105 | ## Install bootloader on CM4
106 | 
107 | https://www.raspberrypi.com/documentation/computers/compute-module.html
108 | 
109 | Set boot switch to on, plug in usb-c 
110 | 
111 | Download rpiboot_setup.exe, run rpiboot.exe 
112 | 
113 | Also see waveshare CM4-NANO-B wiki page.
114 | 
115 | https://github.com/raspberrypi/usbboot/raw/master/win32/rpiboot_setup.exe
116 | 
117 | - Install raspberry pi os lite 64 bit (bookworm)
118 | - Set up wifi
119 | - Set up ssh
120 | - Set up an account (The instructions and various configuration files assume pi/raspberry Adjust as required.)
121 | 
122 | After connecting via ssh :
123 | ```
124 | sudo apt-get update
125 | 
126 | sudo apt-get upgrade
127 | 
128 | sudo raspi-config
129 | 
130 | Select system \ boot+autologin \ B2 Console autologin text console
131 | 
132 | sudo apt-get install -y --no-install-recommends xserver-xorg x11-xserver-utils xinit openbox
133 | 
134 | sudo apt-get install -y --no-install-recommends chromium-browser
135 | ```
136 | 
137 | ## Edit /boot/firmware/config.txt
138 | 
139 | **Note: These HDMI resolution configurations do NOT work on Raspberry Pi 5 / CM5 !**
140 | 
141 | For Touch Display 1920x480 (portrait orientation, default) :
142 | ```
143 | dtoverlay=vc4-fkms-v3d # note that this was vc4-kms-v3d before !!!!!
144 | 
145 | max_framebuffer_height=1920
146 | hdmi_timings=480 1 48 32 80 1920 0 3 10 56 0 0 0 60 0 75840000 3
147 | hdmi_group=2
148 | hdmi_mode=87
149 | 
150 | #otg_mode=1
151 | dtoverlay=dwc2,dr_mode=host
152 | dtoverlay=gpio-shutdown,gpio_pin=21
153 | 
154 | gpu_mem=256
155 | ```
156 | 
157 | For Touch Display 1920x480 (landscape orientation, rotate 90&deg;) also add:
158 | ```
159 | display_hdmi_rotate=1
160 | ```
161 | 
162 | For landscape orientation: the touchscreen also needs to be rotated 90&deg; :
163 | 
164 | Edit /usr/share/X11/xorg.conf.d/40-libinput.conf
165 | 
166 | Add the TransformationMatrix option to the existing touchscreen InputClass:
167 | ```
168 | Section "InputClass"
169 |         Identifier "libinput touchscreen catchall"
170 |         MatchIsTouchscreen "on"
171 |         Option "TransformationMatrix" "0 1 0 -1 0 1 0 0 1"
172 |         MatchDevicePath "/dev/input/event*"
173 |         Driver "libinput"
174 | EndSection
175 | ```
176 | 
177 | For Touch Display 1920x515 :
178 | ```
179 | dtoverlay=vc4-fkms-v3d # note that this was vc4-kms-v3d before !!!!!
180 | 
181 | hdmi_group=2
182 | hdmi_mode=87
183 | hdmi_cvt=1920 515 60 6 0 0 0
184 | 
185 | #otg_mode=1
186 | dtoverlay=dwc2,dr_mode=host
187 | dtoverlay=gpio-shutdown,gpio_pin=21
188 | 
189 | gpu_mem=256
190 | ```
191 | 
192 | For Touch Display 3840x1100 :
193 | ```
194 | dtoverlay=vc4-fkms-v3d # note that this was vc4-kms-v3d before !!!!!
195 | 
196 | hdmi_enable_4kp60=1
197 | hdmi_group=2
198 | hdmi_mode=87
199 | hdmi_cvt=3840 1100 60
200 | 
201 | #otg_mode=1
202 | dtoverlay=dwc2,dr_mode=host
203 | dtoverlay=gpio-shutdown,gpio_pin=21
204 | 
205 | gpu_mem=256
206 | ```
207 | 
208 | ## Edit /etc/xdg/openbox/autostart
209 | 
210 | ```
211 | xset s off
212 | xset s noblank
213 | xset -dpms
214 | 
215 | setxkbmap -option terminate:ctrl_alt_bksp
216 | 
217 | sed -i 's/"exited_cleanly":false/"exited_cleanly":true/' ~/.config/chromium/'Local State'
218 | sed -i 's/"exited_cleanly":false/"exited_cleanly":true/; s/"exit_type":"[^"]\+"/"exit_type":"Normal"/' ~/.config/chromium/Default/Preferences
219 | 
220 | # delete all chromium cached data
221 | rm -rf ~/.cache/chromium
222 | 
223 | # delete cookies
224 | #rm -rf ~/.config/chromium
225 | 
226 | chromium-browser --noerrdialogs --disable-infobars --kiosk 'http://127.0.0.1:5000'
227 | ```
228 | 
229 | For the 3840x1100 screen, you can increase the zoom level of chromium using --force-device-scale-factor=1.5 on the command line.
230 | 
231 | If the web page checks for the dark mode system setting, --force-dark-mode --enable-features=WebContentsForceDark can be added to the command line.
232 | 
233 | To disable the cache mechanism, --disk-cache-dir=/dev/null can be added to the command line.
234 | 
235 | Some chromium performance related flags can be found here :
236 | 
237 | https://github.com/Botspot/pi-apps/blob/master/apps/Better%20Chromium/install
238 | 
239 | some more chromium flags can be found here :
240 | 
241 | https://itnext.io/raspberry-pi-read-only-kiosk-mode-2022-complete-tutorial-df7fc051fdaf
242 | 
243 | ```
244 | chromium-browser --ignore-gpu-blacklist --enable-checker-imaging --cc-scroll-animation-duration-in-seconds=0.6 --disable-quic --enable-tcp-fast-open --enable-experimental-canvas-features --enable-scroll-prediction --enable-simple-cache-backend --max-tiles-for-interest-area=512 --num-raster-threads=4 --default-tile-height=512 --enable-features=VaapiVideoDecoder,VaapiVideoEncoder --disable-features=UseChromeOSDirectVideoDecoder,TouchpadOverscrollHistoryNavigation --enable-accelerated-video-decode --enable-low-res-tiling --process-per-site --start-fullscreen --disable-translate --no-first-run --fast --fast-start --disable-features=TranslateUI --password-store=basic --disable-pinch --overscroll-history-navigation=disabled --noerrdialogs --disable-infobars --kiosk 'http://127.0.0.1:5000'
245 | ```
246 | 
247 | ## Edit ~/.profile
248 | 
249 | ```
250 | [[ -z $DISPLAY && $XDG_VTNR -eq 1 ]] && startx -- -nocursor
251 | ```
252 | 
253 | ## CM5
254 | 
255 | On CM5, (tested on Bookworm), I could not get custom resolutions to work. So, I use a standard 1920x1080 touch screen.
256 | 
257 | I installed the full 64-bit Raspberry Pi OS, with auto login into the graphical desktop.
258 | 
259 | By default, the combination wayland + labwc is installed.
260 | 
261 | In this situation, scrolling the chromium browser with your finger does not work. 
262 | (It acts like a mouse, so you must drag on the scrollbar with your finger, to scroll.)
263 | 
264 | On Trixie, I changed : control center \ screens \ HDMI-A-1 \ Touchscreen \ Mode \ Multitouch (The default was Mouse Emulation)
265 | 
266 | Note, that I don't always see the touchscreen option, after every reboot or shutdown+power up. 
267 | In that case, the mouse emulation is back. I don't know why...
268 | 
269 | 
270 | On Bookworm, I switched to the wayland + wayfire combination. (This option doesn't exist anymore on Trixie):
271 | 
272 | ```
273 | sudo raspi-config 
274 | 
275 | Select advanced options \ wayland \ W2 wayfire
276 | ```
277 | 
278 | I then created a script file, with the desired command line options, to start the kiosk:
279 | 
280 | ~/run_kiosk.sh
281 | 
282 | ```
283 | sleep 6
284 | 
285 | sed -i 's/"exited_cleanly":false/"exited_cleanly":true/' ~/.config/chromium/'Local State'
286 | sed -i 's/"exited_cleanly":false/"exited_cleanly":true/; s/"exit_type":"[^"]\+"/"exit_type":"Normal"/' ~/.config/chromium/Default/Preferences
287 | 
288 | # delete all chromium cached data
289 | rm -rf ~/.cache/chromium
290 | 
291 | # delete cookies
292 | #rm -rf ~/.config/chromium
293 | 
294 | /bin/chromium-browser --no-first-run --noerrdialogs --disable-infobars --ozone-platform=wayland --start-fullscreen --force-dark-mode --enable-features=WebContentsForceDark http://127.0.0.1:5000 &
295 | ```
296 | 
297 | Make script runnable using :
298 | ```
299 | sudo chmod +x ~/run_kiosk.sh
300 | ```
301 | 
302 | Note, that on Trixie, the file name chromium is used, instead of chromium-browser.
303 | 
304 | Note, that I did not add the --kiosk option. Now, the button, to toggle full screen mode, works. (By simulating the F11 key. This requires the 'wtype' application to be installed.)
305 | 
306 | With the --kiosk option, this F11 key is blocked, UNTIL the first screen off/on cycle, on Bookworm, when kiosk mode is disabled anyway....
307 | 
308 | To install wtype, use:
309 | 
310 | ```
311 | sudo apt install wtype 
312 | ```
313 | 
314 | The default desktop installation comes with an on screen keyboard, with a button on the top right, to activate it.
315 | 
316 | The keyboard is not activated automatically in chromium. So, this requires 'full screen' mode to be turned off, before being able to press the keyboard button.
317 | 
318 | On Trixie, using wayland + labwc, I created the file ~/.config/labwc/autostart
319 | 
320 | and added the line:
321 | 
322 | ```
323 | ~/run_kiosk.sh
324 | ```
325 | 
326 | On Bookworm, using wayland + wayfire, I added to ~/.config/wayfire.ini
327 | 
328 | ```
329 | [autostart]
330 | kiosk = ~/run_kiosk.sh
331 | ```
332 | 
333 | Note, that this wayfire.ini file does not exist, when using the default labwc configuration. 
334 | 
335 | HDMI monitor on / off works different for each environment:
336 | 
337 | Use the screenoff2 / screenon2 rest api functions for labwc. This is what I use for Trixie (with labwc)
338 | 
339 | Use the screenoff3 / screenon3 rest api functions for wayfire. This is what I used for Bookworm (with wayfire).
340 | 
341 | After turning the screen back on, the browser is no longer full screen.
342 | 
343 | the screenon3 api function also calls 'wtype' to send the F11 key, to go back to full screen.
344 | 
345 | 
346 | ## Web Server
347 | 
348 | Copy all the web server application files and subdirectories to ~/kiosk-server
349 | 
350 | Make application runnable using :
351 | ```
352 | sudo chmod +x ~/kiosk-server/kiosk-server
353 | ```
354 | 
355 | Install the application as a service (Adjust kiosk-server.service if user or directory is different) :
356 | ```
357 | sudo systemctl stop kiosk-server
358 | 
359 | sudo cp ~/kiosk-server/kiosk-server.service /etc/systemd/system/kiosk-server.service
360 | 
361 | sudo systemctl daemon-reload
362 | 
363 | sudo systemctl enable kiosk-server
364 | 
365 | sudo systemctl start kiosk-server
366 | ```
367 | 
368 | Check if service is running ok :
369 | ```
370 | sudo systemctl status kiosk-server
371 | 
372 | or
373 | 
374 | sudo journalctl -u kiosk-server 
375 | ```
376 | 
377 | ## Visual Studio Publish Action
378 | 
379 | When using 'Publish' -> Visual Studio automatically synchronises all files to ~/kiosk-server using WinSCP.
380 | 
381 | Adjust paths, ip address, user and password in .csproj file as required :
382 | ```
383 | <Target Name="PiCopy" AfterTargets="AfterPublish">
384 |    <Exec Command="&quot;C:\Program Files (x86)\WinSCP\WinSCP.com&quot; /command &quot;open sftp://pi:raspberry@192.168.2.36/&quot; &quot;synchronize remote C:\dotnet\projects\kiosk-server\kiosk-server\bin\Release\net9.0\publish /home/pi/kiosk-server/&quot; &quot;exit&quot;" />
385 | </Target>
386 | ```
387 | 
388 | Alternatively, you could also copy all the files using pscp, that comes with putty:
389 | 
390 | ```
391 | Target Name="PiCopy" AfterTargets="AfterPublish">
392 |    <Exec Command="pscp -r -pw raspberry C:\dotnet\projects\kiosk-server\kiosk-server\bin\Release\net9.0\publish\ pi@192.168.2.36:/home/pi/kiosk-server/" />
393 | </Target>
394 | ```
395 | 
396 | First stop the web server, before updating the files :
397 | ```
398 | sudo systemctl stop kiosk-server
399 | ```
400 | 
401 | ## Home Assistant Dashboards
402 | 
403 | home assistant doesn't work inside an iframe, until you add to the configuration.yaml
404 | 
405 | ```
406 | http:
407 |   use_x_frame_options : false
408 | ```
409 | 
410 | There is no on-screen keyboard, so an auto login mechanism is required:
411 | 
412 | Add a new user 'Kiosk'
413 | 
414 | The user id can be found on the details pop-up:
415 | ![home assistant](https://i.imgur.com/MzeJlGT.png)
416 | 
417 | Then, add the IP address of the kiosk as trusted network and the Kiosk user id as a trusted user to configuration.yaml:
418 | ```
419 | # Allow login without password from local network
420 | homeassistant:
421 |   auth_providers:
422 |     - type: trusted_networks
423 |       trusted_networks:
424 |         - 192.168.2.36/32
425 |       trusted_users:
426 |         192.168.2.36:
427 |           - dacfc03879144b31b57104cc00f6a1a2 ## specific user for kiosk
428 |       allow_bypass_login: true
429 |     - type: homeassistant
430 | ```
431 | 
432 | You can use the normal home assistant header navigation buttons, to switch between dashboards. 
433 | 
434 | Or you can also add each dashboard URL separately to the Kiosk URL List:
435 | 
436 | ![touch screen](https://i.imgur.com/cXrHx23.png)
437 | 
438 | ![home assistant](https://i.imgur.com/xlLNF75.jpg)
439 | 
440 | I installed the 'Kiosk Mode' HACS frontend repository. See https://github.com/NemesisRE/kiosk-mode
441 | 
442 | Now, you can use the kiosk query parameter, to hide the header and sidebar on the dashboard:
443 | 
444 | For example : http://192.168.2.73:8123/lovelace/home?kiosk
445 | 
446 | Note, that this only works correctly, if you hide the sidebar by default, for the Kiosk user:
447 | 
448 | ![home assistant](https://i.imgur.com/pKVELn4.png)
449 | 
450 | ## Transfer system status data to Home Assistant
451 | 
452 | ```
453 | 
454 | sensor:
455 |   - platform: rest
456 |     name: kiosk_sensors
457 |     scan_interval: 60
458 |     resource: http://192.168.2.38:5000/api/status
459 |     json_attributes:
460 |         - disk
461 |         - temperature
462 |         - memory
463 |         - cpu
464 |     value_template: "OK"
465 | 
466 |   - platform: template
467 |     sensors:
468 |       kiosk_temperature:
469 |         unique_id: kiosk_temperature
470 |         friendly_name: "CPU Temperature"
471 |         value_template: "{{ state_attr('sensor.kiosk_sensors', 'temperature')['cpuTemperature'] | round(1) }}"
472 |         device_class: temperature
473 |         unit_of_measurement: "°C"
474 |       kiosk_cpu_percent:
475 |         unique_id: kiosk_cpu_percent
476 |         friendly_name: "CPU Usage"
477 |         value_template: "{{ state_attr('sensor.kiosk_sensors', 'cpu')['cpuUsage'] | round(1)}}"
478 |         unit_of_measurement: "%"
479 | ```
480 | 
481 | 
482 | ## Turn off kiosk when PC is turned off
483 | 
484 | ```
485 | 
486 | rest_command:
487 |   kiosk_off:
488 |     url: "http://192.168.2.38:5000/api/shutdown"
489 |     method: POST
490 | 
491 | binary_sensor:
492 |   - platform: ping
493 |     host: 192.168.2.35
494 |     name: dev5_ping
495 |     scan_interval: 60
496 |   - platform: template
497 |     sensors:
498 |       dev5_online:
499 |         unique_id: dev5_online
500 |         friendly_name: "DEV5 Online"
501 |         delay_off:
502 |           minutes: 2
503 |         value_template: "{{ states('binary_sensor.dev5_ping')}}"
504 |    
505 | automation
506 |    
507 | - id: '...........'
508 |   alias: kiosk off when DEV5 off
509 |   description: ''
510 |   trigger:
511 |   - platform: state
512 |     entity_id:
513 |     - binary_sensor.dev5_online
514 |     from: 'on'
515 |     to: 'off'
516 |   condition: []
517 |   action:
518 |   - service: rest_command.kiosk_off
519 |     data: {}
520 |   mode: single
521 |         
522 | ```
523 | 


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