exposes required permissions to users next to the header with a shiel…

TASVideos.Core/Extensions/WikiHelper.cs

@@ -5,8 +5,10 @@ namespace TASVideos.Extensions;
 
 public static class WikiHelper
 {
-	public static bool UserCanEditWikiPage(string? pageName, string? userName, IReadOnlyCollection<PermissionTo> userPermissions)
+	public static bool UserCanEditWikiPage(string? pageName, string? userName, IReadOnlyCollection<PermissionTo> userPermissions, out HashSet<PermissionTo> relevantPermissions)
 	{
+		relevantPermissions = [];
+
 		if (string.IsNullOrWhiteSpace(pageName) || string.IsNullOrWhiteSpace(userName))
 		{
 			return false;
@@ -17,51 +19,61 @@ public static bool UserCanEditWikiPage(string? pageName, string? userName, IRead
 		// Anyone who can edit anything (including the user's own homepage) should be allowed to edit his
 		if (pageName == "SandBox")
 		{
-			return userPermissions.Contains(PermissionTo.EditGameResources)
-				|| userPermissions.Contains(PermissionTo.EditHomePage)
-				|| userPermissions.Contains(PermissionTo.EditWikiPages)
-				|| userPermissions.Contains(PermissionTo.EditSystemPages)
-				|| userPermissions.Contains(PermissionTo.EditSubmissions)
-				|| userPermissions.Contains(PermissionTo.EditPublicationMetaData);
+			relevantPermissions = [
+				PermissionTo.EditGameResources,
+				PermissionTo.EditHomePage,
+				PermissionTo.EditWikiPages,
+				PermissionTo.EditSystemPages,
+				PermissionTo.EditSubmissions,
+				PermissionTo.EditPublicationMetaData
+			];
+			return relevantPermissions.Any(userPermissions.Contains);
 		}
 
 		if (IsPublicationPage(pageName, out _))
 		{
-			return userPermissions.Contains(PermissionTo.EditPublicationMetaData);
+			relevantPermissions = [PermissionTo.EditPublicationMetaData];
+			return relevantPermissions.Any(userPermissions.Contains);
 		}
 
 		if (IsSubmissionPage(pageName, out _))
 		{
-			return userPermissions.Contains(PermissionTo.EditSubmissions);
+			relevantPermissions = [PermissionTo.EditSubmissions];
+			return relevantPermissions.Any(userPermissions.Contains);
 		}
 
 		if (pageName.StartsWith("GameResources/"))
 		{
-			return userPermissions.Contains(PermissionTo.EditGameResources);
+			relevantPermissions = [PermissionTo.EditGameResources];
+			return relevantPermissions.Any(userPermissions.Contains);
 		}
 
 		if (pageName.StartsWith("System/"))
 		{
-			return userPermissions.Contains(PermissionTo.EditSystemPages);
+			relevantPermissions = [PermissionTo.EditSystemPages];
+			return relevantPermissions.Any(userPermissions.Contains);
 		}
 
 		if (pageName.StartsWith(LinkConstants.HomePages))
 		{
+			relevantPermissions = [PermissionTo.EditHomePage];
+
 			// A home page is defined as Homepages/[UserName]
 			// If a user can exploit this fact to create an exploit
 			// then we should first reconsider rules about allowed patterns of usernames and what defines a valid wiki page
 			// before deciding to nuke this feature
 			var homepage = pageName[LinkConstants.HomePages.Length..].Split('/')[0];
 			if (string.Equals(homepage, userName, StringComparison.OrdinalIgnoreCase)
-				&& userPermissions.Contains(PermissionTo.EditHomePage))
+				&& relevantPermissions.Any(userPermissions.Contains))
 			{
 				return true;
 			}
 
 			// Notice we fall back to EditWikiPages if it is not the user's homepage, regular editors should be able to edit homepages
 		}
 
-		return userPermissions.Contains(PermissionTo.EditWikiPages);
+		relevantPermissions = [PermissionTo.EditWikiPages];
+		return relevantPermissions.Any(userPermissions.Contains);
 	}
 
 	public static bool IsValidWikiPageName(string pageName)

TASVideos/Extensions/ClaimsPrincipalExtensions.cs

@@ -5,5 +5,5 @@ namespace TASVideos;
 public static class ClaimsPrincipalExtensions
 {
 	public static bool CanEditWiki(this ClaimsPrincipal user, string pageName)
-		=> WikiHelper.UserCanEditWikiPage(pageName, user.Name(), user.Permissions());
+		=> WikiHelper.UserCanEditWikiPage(pageName, user.Name(), user.Permissions(), out _);
 }

TASVideos/Extensions/HttpContextExtensions.cs

@@ -1,9 +1,24 @@
-namespace TASVideos.Extensions;
+using TASVideos.Pages;
+
+namespace TASVideos.Extensions;
 
 public static class HttpContextExtensions
 {
 	public static string CurrentPathToReturnUrl(this HttpContext? context)
 	{
 		return context is null ? "" : $"{context.Request.Path}{context.Request.QueryString}";
 	}
+
+	public static void SetRequiredPermissionsView(this HttpContext? context, RequirePermissionsView requiredPermissions)
+	{
+		if (context is not null)
+		{
+			context.Items["RequiredPermissions"] = requiredPermissions;
+		}
+	}
+
+	public static RequirePermissionsView? GetRequiredPermissionsView(this HttpContext? context)
+	{
+		return context?.Items["RequiredPermissions"] as RequirePermissionsView;
+	}
 }

TASVideos/Pages/RequireBase.cs

@@ -1,4 +1,5 @@
-using System.Net;
+using System.Collections.Generic;
+using System.Net;
 using Microsoft.AspNetCore.Mvc.Filters;
 
 namespace TASVideos.Pages;
@@ -40,4 +41,15 @@ protected static async Task<IReadOnlyCollection<PermissionTo>> GetUserPermission
 
 		return context.HttpContext.User.Permissions();
 	}
+
+	protected static void SetRequiredPermissionsView(PageHandlerExecutingContext context, HashSet<PermissionTo> requiredPermissions, bool matchAny)
+	{
+		context.HttpContext.SetRequiredPermissionsView(new RequirePermissionsView { Permissions = requiredPermissions, MatchAny = matchAny });
+	}
+}
+
+public class RequirePermissionsView
+{
+	public HashSet<PermissionTo> Permissions { get; set; } = [];
+	public bool MatchAny { get; set; }
 }

TASVideos/Pages/RequireEdit.cs

@@ -28,10 +28,12 @@ public async Task OnPageHandlerExecutionAsync(PageHandlerExecutingContext contex
 
 		var userPerms = await GetUserPermissions(context);
 		var canEdit = WikiHelper
-			.UserCanEditWikiPage(pageToEdit, user.Name(), userPerms);
+			.UserCanEditWikiPage(pageToEdit, user.Name(), userPerms, out HashSet<PermissionTo> relevantPermissions);
 
 		if (canEdit)
 		{
+			SetRequiredPermissionsView(context, relevantPermissions, matchAny: true);
+
 			await next.Invoke();
 		}
 		else

TASVideos/Pages/RequirePermission.cs

@@ -38,6 +38,7 @@ public async Task OnPageHandlerExecutionAsync(PageHandlerExecutingContext contex
 		if ((MatchAny && RequiredPermissions.Any(r => userPerms.Contains(r)))
 			|| RequiredPermissions.IsSubsetOf(userPerms))
 		{
+			SetRequiredPermissionsView(context, RequiredPermissions, MatchAny);
 			await next.Invoke();
 		}
 		else

TASVideos/Pages/Shared/_Layout.cshtml

@@ -100,6 +100,9 @@
 			}
 		}
 
+		var permissionsRequired = Context.GetRequiredPermissionsView() as RequirePermissionsView;
+		bool requiresPermissions = permissionsRequired is not null && permissionsRequired.Permissions.Count > 0;
+
 		<div class="container mb-2">
 			<h1 class="page-title card card-body d-block">
 				<a condition="prev.HasValue" href="@string.Format(fmtStr!, prev)"><i class="fa fa-arrow-left"></i></a>
@@ -112,8 +115,32 @@
 					@heading
 				}
 				<a condition="next.HasValue" class="float-end" href="@string.Format(fmtStr!, next)"><i class="fa fa-arrow-right"></i></a>
+				<a condition="requiresPermissions" class="float-end text-body-secondary" data-id="permission-modal-button" href="#"><i class="fa-solid fa-shield-halved"></i></a>
 			</h1>
 		</div>
+
+		<div condition="requiresPermissions" id="permission-modal" class="modal fade" tabindex="-1">
+			<div class="modal-dialog">
+				<div class="modal-content">
+					<div class="modal-header">
+						<h5 class="modal-title"><i class="fa-solid fa-shield-halved"></i> This page requires permissions</h5>
+						<button type='button' class='btn-close' data-bs-dismiss='modal'></button>
+					</div>
+					<div class="modal-body">
+						<p>You can visit this page because you have @(permissionsRequired!.Permissions.Count == 1 ? "" : permissionsRequired.MatchAny ? "one of " : "all of ")the following required permissions:</p>
+						<ul>
+							@foreach (var permission in permissionsRequired.Permissions)
+							{
+								<li>@permission.ToString().SplitCamelCase()</li>
+							}
+						</ul>
+					</div>
+					<div class="modal-footer">
+						<button type="button" class="btn btn-silver" data-bs-dismiss="modal">Close</button>
+					</div>
+				</div>
+			</div>
+		</div>
 	}
 
 <div class="container">

TASVideos/Pages/Wiki/PageHistory.cshtml

@@ -4,7 +4,7 @@
 	ViewData.SetTitle("Page History For " + Model.PageName);
 	ViewData.UseDiff();
 	bool hasDiff = Model.FromRevision.HasValue && Model.ToRevision.HasValue;
-	var canEdit = WikiHelper.UserCanEditWikiPage(Model.Path, User.Name(), User.Permissions());
+	var canEdit = WikiHelper.UserCanEditWikiPage(Model.Path, User.Name(), User.Permissions(), out _);
 }
 
 @functions {

TASVideos/wwwroot/js/site.js

@@ -50,3 +50,11 @@ if (location.hash) {
 		}
 	}
 }
+
+Array.from(document.querySelectorAll('[data-id="permission-modal-button"]')).forEach(popupBtn => {
+	popupBtn.addEventListener('click', () => {
+		let modal = new bootstrap.Modal('#permission-modal')
+		modal.show();
+		return false;
+	})
+});

tests/TASVideos.Test/Extensions/WikiHelperTests.cs

@@ -58,7 +58,8 @@ public void UserCanEditWikiPage(
 		var actual = WikiHelper.UserCanEditWikiPage(
 			pageName,
 			userName,
-			userPermissions.ToList());
+			userPermissions.ToList(),
+			out _);
 
 		Assert.AreEqual(expected, actual);
 	}