chore: add error handling for 40{3,4} and 500

Controllers/HomeController.cs

@@ -48,5 +48,24 @@ namespace pwt_0x01_ng.Controllers
 		{
 			return View(new ErrorViewModel {RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier});
 		}
+
+		[Route("/Home/HandleError/{code:int}")]
+		public IActionResult HandleError(int code)
+		{
+			ViewData["ErrorMessage"] = $"Error {code}";
+			switch(code) {
+				case 403:
+					return View("~/Views/Shared/403.cshtml");
+
+				case 404:
+					return View("~/Views/Shared/404.cshtml");
+
+				case 500:
+					return View("~/Views/Shared/500.cshtml");
+
+				default:
+					return View("~/Views/Shared/unhandled_err_code.cshtml");
+			}
+		}
 	}
 }

Startup.cs

@@ -61,6 +61,8 @@ namespace pwt_0x01_ng
 			{
 				app.UseExceptionHandler("/Home/Error");
 			}
+			app.UseStatusCodePages();
+			app.UseStatusCodePagesWithReExecute("/Home/HandleError/{0}");
 
 			app.UseRouting();
 			app.UseEndpoints(endpoints =>

Views/Shared/403.cshtml

@@ -0,0 +1,7 @@
+@{
+	ViewData["Title"] = "403 Forbidden";
+}
+
+<partial name="_errdivtop_part"/>
+	<h2 class="text-secondary">You are not authorized to access the resource.</h2>
+<partial name="_errdivbottom_part"/>

Views/Shared/404.cshtml

@@ -0,0 +1,7 @@
+@{
+	ViewData["Title"] = "404 Not Found";
+}
+
+<partial name="_errdivtop_part"/>
+	<h2 class="text-secondary">The resource you were looking for was not found.</h2>
+<partial name="_errdivbottom_part"/>

Views/Shared/500.cshtml

@@ -0,0 +1,7 @@
+@{
+	ViewData["Title"] = "500 Internal Server Error";
+}
+
+<partial name="_errdivtop_part"/>
+	<h2 class="text-secondary">We apologise, there's been an error on our side.</h2>
+<partial name="_errdivbottom_part"/>

Views/Shared/_errdivbottom_part.cshtml

@@ -0,0 +1,5 @@
+<div class="p-2 mb-2 bg-dark text-white">
+<h3>Return to<a href="/"> homepage</a></h3>
+</div>
+</div> <!-- class="row" -->
+</div> <!-- class="col-m-1" -->

Views/Shared/_errdivtop_part.cshtml

@@ -0,0 +1,2 @@
+<div class="row">
+<div class="col-m-1 text-center bg-dark rounded">

Views/Shared/unhandled_err_code.cshtml

@@ -0,0 +1,7 @@
+@{
+	ViewData["Title"] = "Error";
+}
+
+<partial name="_errdivtop_part"/>
+	<h2 class="text-secondary">We apologise, an unexpected error occured.</h2>
+<partial name="_errdivbottom_part"/>