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Add error page to hosted server project. Fixes #19670

This commit is contained in:
Steve Sanderson 2020-03-31 11:43:34 +01:00
parent 87539a81f9
commit c877f88026
4 changed files with 81 additions and 0 deletions
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27
src/ProjectTemplates/ComponentsWebAssembly.ProjectTemplates/content/ComponentsWebAssembly-CSharp/Server/Pages/Error.cshtml Normal file
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@page
@model ComponentsWebAssembly_CSharp.Server.Pages.ErrorModel
@{
Layout = "_Layout";
ViewData["Title"] = "Error";
}
<h1 class="text-danger">Error.</h1>
<h2 class="text-danger">An error occurred while processing your request.</h2>
@if (Model.ShowRequestId)
{
<p>
<strong>Request ID:</strong> <code>@Model.RequestId</code>
</p>
}
<h3>Development Mode</h3>
<p>
Swapping to the <strong>Development</strong> environment displays detailed information about the error that occurred.
</p>
<p>
<strong>The Development environment shouldn't be enabled for deployed applications.</strong>
It can result in displaying sensitive information from exceptions to end users.
For local debugging, enable the <strong>Development</strong> environment by setting the <strong>ASPNETCORE_ENVIRONMENT</strong> environment variable to <strong>Development</strong>
and restarting the app.
</p>

31
src/ProjectTemplates/ComponentsWebAssembly.ProjectTemplates/content/ComponentsWebAssembly-CSharp/Server/Pages/Error.cshtml.cs Normal file
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using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;
using Microsoft.Extensions.Logging;
namespace ComponentsWebAssembly_CSharp.Server.Pages
{
[ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
public class ErrorModel : PageModel
{
public string RequestId { get; set; }
public bool ShowRequestId => !string.IsNullOrEmpty(RequestId);
private readonly ILogger<ErrorModel> _logger;
public ErrorModel(ILogger<ErrorModel> logger)
{
_logger = logger;
}
public void OnGet()
{
RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier;
}
}
}

20
src/ProjectTemplates/ComponentsWebAssembly.ProjectTemplates/content/ComponentsWebAssembly-CSharp/Server/Pages/Shared/_Layout.cshtml Normal file
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
<title>@ViewBag.Title</title>
<link href="~/css/bootstrap/bootstrap.min.css" rel="stylesheet" />
<link href="~/css/site.css" rel="stylesheet" />
</head>
<body>
<div class="main">
<div class="content px-4">
@RenderBody()
</div>
</div>
</body>
</html>

3
src/ProjectTemplates/test/template-baselines.json
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@ -62,6 +62,9 @@
"Server/appsettings.json",
"Server/appsettings.Development.json",
"Server/Controllers/WeatherForecastController.cs",
"Server/Pages/Error.cshtml",
"Server/Pages/Error.cshtml.cs",
"Server/Pages/Shared/_Layout.cshtml",
"Server/Program.cs",
"Server/Properties/launchSettings.json",
"Server/Startup.cs",