我滴个乖乖

ZelWiki/.config/dotnet-tools.json

@@ -0,0 +1,12 @@
+{
+  "version": 1,
+  "isRoot": true,
+  "tools": {
+    "dotnet-ef": {
+      "version": "8.0.5",
+      "commands": [
+        "dotnet-ef"
+      ]
+    }
+  }
+}

ZelWiki/Areas/Identity/Pages/Account/AccessDenied.cshtml

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+@page
+@model AccessDeniedModel
+@{
+    var sessionState = ViewData["SessionState"] as ZelWiki.SessionState ?? throw new Exception("Wiki State Context cannot be null.");
+}
+
+<h3>
+    Access denied.
+</h3>
+
+<p class="text-danger">您没有权限</p>

ZelWiki/Areas/Identity/Pages/Account/AccessDenied.cshtml.cs

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+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+#nullable disable
+
+using Microsoft.AspNetCore.Identity;
+
+namespace ZelWiki.Areas.Identity.Pages.Account
+{
+    /// <summary>
+    ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+    ///     directly from your code. This API may change or be removed in future releases.
+    /// </summary>
+    public class AccessDeniedModel : PageModelBase
+    {
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public void OnGet()
+        {
+        }
+        public AccessDeniedModel(SignInManager<IdentityUser> signInManager)
+                        : base(signInManager)
+        {
+
+        }
+    }
+}

ZelWiki/Areas/Identity/Pages/Account/ConfirmEmail.cshtml

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+@page
+@model ConfirmEmailModel
+@{
+    var sessionState = ViewData["SessionState"] as ZelWiki.SessionState ?? throw new Exception("Wiki State Context cannot be null.");
+}
+
+<h3>
+    Confirm your email address.
+</h3>
+
+<p><partial name="_StatusMessage" model="Model.StatusMessage" /></p>

ZelWiki/Areas/Identity/Pages/Account/ConfirmEmail.cshtml.cs

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+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+#nullable disable
+
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.WebUtilities;
+using System.Text;
+using ZelWiki.Models;
+
+namespace ZelWiki.Areas.Identity.Pages.Account
+{
+    public class ConfirmEmailModel : PageModelBase
+    {
+        private readonly UserManager<IdentityUser> _userManager;
+
+        public ConfirmEmailModel(SignInManager<IdentityUser> signInManager, UserManager<IdentityUser> userManager)
+                        : base(signInManager)
+        {
+            _userManager = userManager;
+        }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        [TempData]
+        public string StatusMessage { get; set; }
+        public async Task<IActionResult> OnGetAsync(string userId, string code)
+        {
+            if (userId == null || code == null)
+            {
+                return RedirectToPage($"{GlobalConfiguration.BasePath}/Index");
+            }
+
+            var user = await _userManager.FindByIdAsync(userId);
+            if (user == null)
+            {
+                return NotFound($"Unable to load user with ID '{userId}'.");
+            }
+
+            code = Encoding.UTF8.GetString(WebEncoders.Base64UrlDecode(code));
+            var result = await _userManager.ConfirmEmailAsync(user, code);
+            StatusMessage = result.Succeeded ? "Thank you for confirming your email." : "Error confirming your email.";
+            return Page();
+        }
+    }
+}

ZelWiki/Areas/Identity/Pages/Account/ConfirmEmailChange.cshtml

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+@page
+@model ConfirmEmailChangeModel
+@{
+    var sessionState = ViewData["SessionState"] as ZelWiki.SessionState ?? throw new Exception("Wiki State Context cannot be null.");
+}
+
+<h3>
+    Confirm email change
+</h3>
+
+<p><partial name="_StatusMessage" model="Model.StatusMessage" /></p>

ZelWiki/Areas/Identity/Pages/Account/ConfirmEmailChange.cshtml.cs

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+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+#nullable disable
+
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.WebUtilities;
+using System.Text;
+using ZelWiki.Models;
+
+namespace ZelWiki.Areas.Identity.Pages.Account
+{
+    public class ConfirmEmailChangeModel : PageModelBase
+    {
+        private readonly UserManager<IdentityUser> _userManager;
+        private readonly SignInManager<IdentityUser> _signInManager;
+
+        public ConfirmEmailChangeModel(UserManager<IdentityUser> userManager, SignInManager<IdentityUser> signInManager)
+                        : base(signInManager)
+        {
+            _userManager = userManager;
+            _signInManager = signInManager;
+        }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        [TempData]
+        public string StatusMessage { get; set; }
+
+        public async Task<IActionResult> OnGetAsync(string userId, string email, string code)
+        {
+            if (userId == null || email == null || code == null)
+            {
+                return RedirectToPage($"{GlobalConfiguration.BasePath}/Index");
+            }
+
+            var user = await _userManager.FindByIdAsync(userId);
+            if (user == null)
+            {
+                return NotFound($"Unable to load user with ID '{userId}'.");
+            }
+
+            code = Encoding.UTF8.GetString(WebEncoders.Base64UrlDecode(code));
+            var result = await _userManager.ChangeEmailAsync(user, email, code);
+            if (!result.Succeeded)
+            {
+                StatusMessage = "Error changing email.";
+                return Page();
+            }
+
+            // In our UI email and user name are one and the same, so when we update the email
+            // we need to update the user name.
+            var setUserNameResult = await _userManager.SetUserNameAsync(user, email);
+            if (!setUserNameResult.Succeeded)
+            {
+                StatusMessage = "Error changing user name.";
+                return Page();
+            }
+
+            await _signInManager.RefreshSignInAsync(user);
+            StatusMessage = "Thank you for confirming your email change.";
+            return Page();
+        }
+    }
+}

ZelWiki/Areas/Identity/Pages/Account/ExternalLogin.cshtml

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+@page
+@using System.Text.Encodings.Web
+@model ExternalLoginModel
+@{
+    var sessionState = ViewData["SessionState"] as ZelWiki.SessionState ?? throw new Exception("Wiki State Context cannot be null.");
+}
+
+<h3>
+    Register
+</h3>
+
+<p>Associate your @Model.ProviderDisplayName account.</p>
+<hr />
+
+<p id="external-login-description" class="text-info">
+    You've successfully authenticated with <strong>@Model.ProviderDisplayName</strong>.
+    Please enter an email address for this site below and click the Register button to finish
+    logging in.
+</p>
+
+<div class="row">
+    <div class="col-md-4">
+        <form asp-page-handler="Confirmation" asp-route-returnUrl="@UrlEncoder.Default.Encode(Model.ReturnUrl)" method="post">
+            <div asp-validation-summary="ModelOnly" class="text-danger" role="alert"></div>
+            <div class="form-floating mb-3">
+                <input asp-for="Input.Email" class="form-control" autocomplete="email" placeholder="Please enter your email."/>
+                <label asp-for="Input.Email" class="form-label"></label>
+                <span asp-validation-for="Input.Email" class="text-danger"></span>
+            </div>
+            <button type="submit" class="w-100 btn btn-lg btn-primary">Register</button>
+        </form>
+    </div>
+</div>
+
+@section Scripts {
+    <partial name="_ValidationScriptsPartial" />
+}

ZelWiki/Areas/Identity/Pages/Account/ExternalLogin.cshtml.cs

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+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+#nullable disable
+
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.WebUtilities;
+using System.ComponentModel.DataAnnotations;
+using System.Security.Claims;
+using System.Text;
+using System.Text.Encodings.Web;
+using ZelWiki.Library.Interfaces;
+using ZelWiki.Models;
+using ZelWiki.Repository;
+
+namespace ZelWiki.Areas.Identity.Pages.Account
+{
+    [AllowAnonymous]
+    public class ExternalLoginModel : PageModelBase
+    {
+        private readonly SignInManager<IdentityUser> _signInManager;
+        private readonly UserManager<IdentityUser> _userManager;
+        private readonly IUserStore<IdentityUser> _userStore;
+        private readonly IUserEmailStore<IdentityUser> _emailStore;
+        private readonly IWikiEmailSender _emailSender;
+        private readonly ILogger<ExternalLoginModel> _logger;
+
+        public ExternalLoginModel(
+            SignInManager<IdentityUser> signInManager,
+            UserManager<IdentityUser> userManager,
+            IUserStore<IdentityUser> userStore,
+            ILogger<ExternalLoginModel> logger,
+            IWikiEmailSender emailSender)
+                        : base(signInManager)
+        {
+            _signInManager = signInManager;
+            _userManager = userManager;
+            _userStore = userStore;
+            _emailStore = GetEmailStore();
+            _logger = logger;
+            _emailSender = emailSender;
+        }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        [BindProperty]
+        public InputModel Input { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public string ProviderDisplayName { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public string ReturnUrl { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        [TempData]
+        public string ErrorMessage { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public class InputModel
+        {
+            /// <summary>
+            ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+            ///     directly from your code. This API may change or be removed in future releases.
+            /// </summary>
+            [Required]
+            [EmailAddress]
+            public string Email { get; set; }
+        }
+
+        public IActionResult OnGet() => RedirectToPage($"{GlobalConfiguration.BasePath}/Identity/Login");
+
+        public IActionResult OnPost(string provider, string returnUrl = null)
+        {
+            // Request a redirect to the external login provider.
+            var redirectUrl = Url.Page("./ExternalLogin", pageHandler: "Callback", values: new { returnUrl });
+            var properties = _signInManager.ConfigureExternalAuthenticationProperties(provider, redirectUrl);
+            return new ChallengeResult(provider, properties);
+        }
+
+        public async Task<IActionResult> OnGetCallbackAsync(string returnUrl = null, string remoteError = null)
+        {
+            returnUrl = returnUrl ?? Url.Content("~/");
+            if (remoteError != null)
+            {
+                ErrorMessage = $"Error from external provider: {remoteError}";
+                return RedirectToPage($"{GlobalConfiguration.BasePath}/Identity/Login", new { ReturnUrl = returnUrl });
+            }
+            var info = await _signInManager.GetExternalLoginInfoAsync();
+            if (info == null)
+            {
+                ErrorMessage = "Error loading external login information.";
+                return RedirectToPage($"{GlobalConfiguration.BasePath}/Identity/Login", new { ReturnUrl = returnUrl });
+            }
+
+            // Sign in the user with this external login provider if the user already has a login.
+            var result = await _signInManager.ExternalLoginSignInAsync(info.LoginProvider, info.ProviderKey, isPersistent: false, bypassTwoFactor: true);
+            if (result.Succeeded)
+            {
+                _logger.LogInformation("{Name} logged in with {LoginProvider} provider.", info.Principal.Identity.Name, info.LoginProvider);
+                return LocalRedirect(returnUrl);
+            }
+            if (result.IsLockedOut)
+            {
+                return RedirectToPage($"{GlobalConfiguration.BasePath}/Identity/Lockout");
+            }
+            else
+            {
+                // If the user does not have an account, then ask the user to create an account.
+                ReturnUrl = returnUrl;
+                ProviderDisplayName = info.ProviderDisplayName;
+                if (info.Principal.HasClaim(c => c.Type == ClaimTypes.Email))
+                {
+                    Input = new InputModel
+                    {
+                        Email = info.Principal.FindFirstValue(ClaimTypes.Email)
+                    };
+                }
+                return Page();
+            }
+        }
+
+        public async Task<IActionResult> OnPostConfirmationAsync(string returnUrl = null)
+        {
+            returnUrl = returnUrl ?? Url.Content("~/");
+            // Get the information about the user from the external login provider
+            var info = await _signInManager.GetExternalLoginInfoAsync();
+            if (info == null)
+            {
+                ErrorMessage = "Error loading external login information during confirmation.";
+                return RedirectToPage($"{GlobalConfiguration.BasePath}/Identity/Login", new { ReturnUrl = returnUrl });
+            }
+
+            if (ModelState.IsValid)
+            {
+                var user = CreateUser();
+
+                await _userStore.SetUserNameAsync(user, Input.Email, CancellationToken.None);
+                await _emailStore.SetEmailAsync(user, Input.Email, CancellationToken.None);
+
+                var result = await _userManager.CreateAsync(user);
+                if (result.Succeeded == false)
+                {
+                    result = await _userManager.AddLoginAsync(user, info);
+                    if (result.Succeeded)
+                    {
+                        _logger.LogInformation("User created an account using {Name} provider.", info.LoginProvider);
+
+                        var userId = await _userManager.GetUserIdAsync(user);
+                        var code = await _userManager.GenerateEmailConfirmationTokenAsync(user);
+                        var encodedCode = WebEncoders.Base64UrlEncode(Encoding.UTF8.GetBytes(code));
+                        var callbackUrl = Url.Page(
+                            "/Account/ConfirmEmail",
+                            pageHandler: null,
+                            values: new { area = "Identity", userId = userId, code = encodedCode },
+                            protocol: Request.Scheme);
+
+                        var emailTemplate = new StringBuilder(ConfigurationRepository.Get<string>("Membership", "Template: Account Verification Email"));
+                        var basicConfig = ConfigurationRepository.GetConfigurationEntryValuesByGroupName("Basic");
+                        var siteName = basicConfig.Value<string>("Name");
+                        var address = basicConfig.Value<string>("Address");
+                        var profile = UsersRepository.GetAccountProfileByUserId(Guid.Parse(userId));
+
+                        var emailSubject = "Confirm your email";
+                        emailTemplate.Replace("##SUBJECT##", emailSubject);
+                        emailTemplate.Replace("##ACCOUNTCOUNTRY##", profile.Country);
+                        emailTemplate.Replace("##ACCOUNTTIMEZONE##", profile.TimeZone);
+                        emailTemplate.Replace("##ACCOUNTLANGUAGE##", profile.Language);
+                        emailTemplate.Replace("##ACCOUNTEMAIL##", profile.EmailAddress);
+                        emailTemplate.Replace("##ACCOUNTNAME##", profile.AccountName);
+                        emailTemplate.Replace("##PERSONNAME##", $"{profile.FirstName} {profile.LastName}");
+                        emailTemplate.Replace("##CODE##", code);
+                        emailTemplate.Replace("##USERID##", userId);
+                        emailTemplate.Replace("##SITENAME##", siteName);
+                        emailTemplate.Replace("##SITEADDRESS##", address);
+                        emailTemplate.Replace("##CALLBACKURL##", HtmlEncoder.Default.Encode(callbackUrl));
+
+                        await _emailSender.SendEmailAsync(Input.Email, emailSubject, emailTemplate.ToString());
+
+                        // If account confirmation is required, we need to show the link if we don't have a real email sender
+                        if (_userManager.Options.SignIn.RequireConfirmedAccount)
+                        {
+                            return RedirectToPage($"{GlobalConfiguration.BasePath}/Identity/RegisterConfirmation", new { Email = Input.Email });
+                        }
+
+                        await _signInManager.SignInAsync(user, isPersistent: false, info.LoginProvider);
+                        return LocalRedirect(returnUrl);
+                    }
+                }
+                foreach (var error in result.Errors)
+                {
+                    ModelState.AddModelError(string.Empty, error.Description);
+                }
+            }
+
+            ProviderDisplayName = info.ProviderDisplayName;
+            ReturnUrl = returnUrl;
+            return Page();
+        }
+
+        private IdentityUser CreateUser()
+        {
+            try
+            {
+                return Activator.CreateInstance<IdentityUser>();
+            }
+            catch
+            {
+                throw new InvalidOperationException($"Can't create an instance of '{nameof(IdentityUser)}'. " +
+                    $"Ensure that '{nameof(IdentityUser)}' is not an abstract class and has a parameterless constructor, or alternatively " +
+                    $"override the external login page in /Areas/Identity/Pages/Account/ExternalLogin.cshtml");
+            }
+        }
+
+        private IUserEmailStore<IdentityUser> GetEmailStore()
+        {
+            if (!_userManager.SupportsUserEmail)
+            {
+                throw new NotSupportedException("The default UI requires a user store with email support.");
+            }
+            return (IUserEmailStore<IdentityUser>)_userStore;
+        }
+    }
+}

ZelWiki/Areas/Identity/Pages/Account/ExternalLoginSupplemental.cshtml

@@ -0,0 +1,97 @@
+@page
+@using System.Text.Encodings.Web
+@model ExternalLoginSupplementalModel
+@{
+    var sessionState = ViewData["SessionState"] as ZelWiki.SessionState ?? throw new Exception("Wiki State Context cannot be null.");
+}
+
+<h3>
+    Signup. Almost there...
+</h3>
+
+<p>
+    You have successfully signed in with the external provider but we still need a bit of information.<br /><br />
+</p>
+
+<form asp-page-handler="Confirmation" asp-route-returnUrl="@UrlEncoder.Default.Encode(Model.ReturnUrl ?? "")" method="post">
+    <div class="container">
+        <div class="form-group row mb-3">
+            <label for="Input.AccountName" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => Model.Input.AccountName)</strong></label>
+            <div class="col-sm-10">
+                @Html.TextBoxFor(m => Model.Input.AccountName, new { @class = "form-control", placeholder = "required" })
+                <small class="form-text text-muted">This account name will be visible publicly.</small>
+                <div class="text-danger">@Html.ValidationMessageFor(m => Model.Input.AccountName)</div>
+            </div>
+        </div>
+
+        <div class="form-group row mb-1">
+            <label for="Input.FirstName" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => Model.Input.FirstName)</strong></label>
+            <div class="col-sm-10">
+                @Html.TextBoxFor(m => Model.Input.FirstName, new { @class = "form-control", placeholder = "not required" })
+                <div class="text-danger">@Html.ValidationMessageFor(m => Model.Input.FirstName)</div>
+            </div>
+        </div>
+
+        <div class="form-group row mb-3">
+            <label for="Input.LastName" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => Model.Input.LastName)</strong></label>
+            <div class="col-sm-10">
+                @Html.TextBoxFor(m => Model.Input.LastName, new { @class = "form-control", placeholder = "not required" })
+                <div class="text-danger">@Html.ValidationMessageFor(m => Model.Input.LastName)</div>
+            </div>
+        </div>
+
+        <div class="form-group row mb-1">
+            <label for="Input.Country" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => Model.Input.Country)</strong></label>
+            <div class="col-sm-10">
+                <select name="Input.Country" id="Input.Country" class="form-control">
+                    <option value="" style="color:#ccc !important;">Select a country</option>
+                    @foreach (var item in Model.Input.Countries)
+                    {
+                        <option value="@item.Value" selected=@(Model.Input.Country == item.Value ? "selected" : null)>
+                            @item.Text
+                        </option>
+                    }
+                </select>
+                <div class="text-danger">@Html.ValidationMessageFor(m => Model.Input.Country)</div>
+            </div>
+        </div>
+
+        <div class="form-group row mb-1">
+            <label for="Input.Language" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => Model.Input.Language)</strong></label>
+            <div class="col-sm-10">
+                <select name="Input.Language" id="Input.Language" class="form-control">
+                    <option value="" style="color:#ccc !important;">Select a language</option>
+                    @foreach (var item in Model.Input.Languages)
+                    {
+                        <option value="@item.Value" selected=@(Model.Input.Language == item.Value ? "selected" : null)>
+                            @item.Text
+                        </option>
+                    }
+                </select>
+                <div class="text-danger">@Html.ValidationMessageFor(m => Model.Input.Language)</div>
+            </div>
+        </div>
+
+        <div class="form-group row mb-1">
+            <label for="Input.TimeZone" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => Model.Input.TimeZone)</strong></label>
+            <div class="col-sm-10">
+                <select name="Input.TimeZone" id="Input.TimeZone" class="form-control">
+                    <option value="" style="color:#ccc !important;">Select a time-zone</option>
+                    @foreach (var item in Model.Input.TimeZones)
+                    {
+                        <option value="@item.Value" selected=@(Model.Input.TimeZone == item.Value ? "selected" : null)>
+                            @item.Text
+                        </option>
+                    }
+                </select>
+                <div class="text-danger">@Html.ValidationMessageFor(m => Model.Input.TimeZone)</div>
+            </div>
+        </div>
+
+        <div class="form-group row mb-1">
+            <div class="col-sm-10 offset-sm-2">
+                <button type="submit" class="btn btn-primary rounded-0">Complete Signup!</button>
+            </div>
+        </div>
+    </div>
+</form>

ZelWiki/Areas/Identity/Pages/Account/ExternalLoginSupplemental.cshtml.cs

@@ -0,0 +1,165 @@
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using NTDLS.Helpers;
+using System.ComponentModel.DataAnnotations;
+using System.Security.Claims;
+using ZelWiki.Library;
+using ZelWiki.Models;
+using ZelWiki.Repository;
+
+namespace ZelWiki.Areas.Identity.Pages.Account
+{
+    public class ExternalLoginSupplementalModel : PageModelBase
+    {
+        [BindProperty]
+        public string? ReturnUrl { get; set; }
+
+        private UserManager<IdentityUser> _userManager;
+
+        public ExternalLoginSupplementalModel(SignInManager<IdentityUser> signInManager,
+            UserManager<IdentityUser> userManager, IUserStore<IdentityUser> userStore)
+            : base(signInManager)
+        {
+            _userManager = userManager;
+        }
+
+        [BindProperty]
+        public InputModel Input { get; set; } = new InputModel();
+
+        public class InputModel
+        {
+            public List<TimeZoneItem> TimeZones { get; set; } = new();
+            public List<CountryItem> Countries { get; set; } = new();
+            public List<LanguageItem> Languages { get; set; } = new();
+
+
+            [Display(Name = "Account Name")]
+            [Required(ErrorMessage = "Account Name is required")]
+            public string AccountName { get; set; } = string.Empty;
+
+            [Display(Name = "First Name")]
+            public string? FirstName { get; set; }
+
+            [Display(Name = "Last Name")]
+            public string? LastName { get; set; } = string.Empty;
+
+            [Display(Name = "Time-Zone")]
+            [Required(ErrorMessage = "TimeZone is required")]
+            public string TimeZone { get; set; } = string.Empty;
+
+            [Display(Name = "Country")]
+            [Required(ErrorMessage = "Country is required")]
+            public string Country { get; set; } = string.Empty;
+
+            [Display(Name = "Language")]
+            [Required(ErrorMessage = "Language is required")]
+            public string Language { get; set; } = string.Empty;
+        }
+
+        public IActionResult OnGet()
+        {
+            ReturnUrl ??= Url.Content("~/");
+
+            if (GlobalConfiguration.AllowSignup != true)
+            {
+                return Redirect($"{GlobalConfiguration.BasePath}/Identity/Account/RegistrationIsNotAllowed");
+            }
+
+            PopulateDefaults();
+
+            return Page();
+        }
+
+        private void PopulateDefaults()
+        {
+            Input.TimeZones = TimeZoneItem.GetAll();
+            Input.Countries = CountryItem.GetAll();
+            Input.Languages = LanguageItem.GetAll();
+
+            var membershipConfig = ConfigurationRepository.GetConfigurationEntryValuesByGroupName("Membership");
+
+            if (string.IsNullOrEmpty(Input.TimeZone))
+                Input.TimeZone = membershipConfig.Value<string>("Default TimeZone").EnsureNotNull();
+
+            if (string.IsNullOrEmpty(Input.Country))
+                Input.Country = membershipConfig.Value<string>("Default Country").EnsureNotNull();
+
+            if (string.IsNullOrEmpty(Input.Language))
+                Input.Language = membershipConfig.Value<string>("Default Language").EnsureNotNull();
+        }
+
+        public async Task<IActionResult> OnPostAsync()
+        {
+            if (GlobalConfiguration.AllowSignup != true)
+            {
+                return Redirect($"{GlobalConfiguration.BasePath}/Identity/Account/RegistrationIsNotAllowed");
+            }
+
+            PopulateDefaults();
+
+            if (!ModelState.IsValid)
+            {
+                return Page();
+            }
+
+            if (string.IsNullOrWhiteSpace(Input.AccountName))
+            {
+                ModelState.AddModelError("Input.AccountName", "Account Name is required.");
+                return Page();
+            }
+            else if (UsersRepository.DoesProfileAccountExist(Input.AccountName))
+            {
+                ModelState.AddModelError("Input.AccountName", "Account Name is already in use.");
+                return Page();
+            }
+
+            var info = await SignInManager.GetExternalLoginInfoAsync();
+            if (info == null)
+            {
+                return NotifyOfError("An error occurred retrieving user information from the external provider.");
+            }
+
+            var email = info.Principal.FindFirstValue(ClaimTypes.Email).EnsureNotNull();
+            if (string.IsNullOrEmpty(email))
+            {
+                return NotifyOfError("The email address was not supplied by the external provider.");
+            }
+
+            var user = new IdentityUser { UserName = email, Email = email };
+            var result = await _userManager.CreateAsync(user);
+            if (!result.Succeeded)
+            {
+                return NotifyOfError("An error occurred while creating the user.");
+            }
+
+            result = await _userManager.AddLoginAsync(user, info);
+            if (!result.Succeeded)
+            {
+                return NotifyOfError("An error occurred while adding the login.");
+            }
+
+            UsersRepository.CreateProfile(Guid.Parse(user.Id), Input.AccountName);
+
+            var membershipConfig = ConfigurationRepository.GetConfigurationEntryValuesByGroupName("Membership");
+            var claimsToAdd = new List<Claim>
+            {
+                new (ClaimTypes.Role, membershipConfig.Value<string>("Default Signup Role").EnsureNotNull()),
+                new ("timezone", Input.TimeZone),
+                new (ClaimTypes.Country, Input.Country),
+                new ("language", Input.Language),
+                new ("firstname", Input.FirstName ?? ""),
+                new ("lastname", Input.LastName ?? ""),
+            };
+
+            SecurityRepository.UpsertUserClaims(_userManager, user, claimsToAdd);
+
+            await SignInManager.SignInAsync(user, isPersistent: false);
+
+            if (string.IsNullOrEmpty(ReturnUrl))
+            {
+                return LocalRedirect($"{GlobalConfiguration.BasePath}/");
+            }
+            return LocalRedirect(ReturnUrl);
+        }
+    }
+}

ZelWiki/Areas/Identity/Pages/Account/ForgotPassword.cshtml

@@ -0,0 +1,21 @@
+@page
+@model ForgotPasswordModel
+@{
+    var sessionState = ViewData["SessionState"] as ZelWiki.SessionState ?? throw new Exception("Wiki State Context cannot be null.");
+}
+
+<h3>
+    忘记密码?
+</h3>
+
+<hr />
+
+<div class="row">
+    <div class="col-md-4">
+    请联系系统管理员为您重置您的密码。
+    </div>
+</div>
+
+@section Scripts {
+    <partial name="_ValidationScriptsPartial" />
+}

ZelWiki/Areas/Identity/Pages/Account/ForgotPassword.cshtml.cs

@@ -0,0 +1,99 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+#nullable disable
+
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.WebUtilities;
+using System.ComponentModel.DataAnnotations;
+using System.Text;
+using System.Text.Encodings.Web;
+using ZelWiki.Library.Interfaces;
+using ZelWiki.Models;
+using ZelWiki.Repository;
+
+namespace ZelWiki.Areas.Identity.Pages.Account
+{
+
+    public class ForgotPasswordModel : PageModelBase
+    {
+        private readonly UserManager<IdentityUser> _userManager;
+        private readonly IWikiEmailSender _emailSender;
+
+        public ForgotPasswordModel(UserManager<IdentityUser> userManager, SignInManager<IdentityUser> signInManager, IWikiEmailSender emailSender)
+            : base(signInManager)
+        {
+            _userManager = userManager;
+            _emailSender = emailSender;
+        }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        [BindProperty]
+        public InputModel Input { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public class InputModel
+        {
+            /// <summary>
+            ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+            ///     directly from your code. This API may change or be removed in future releases.
+            /// </summary>
+            [Required]
+            [EmailAddress]
+            public string Email { get; set; }
+        }
+
+        public async Task<IActionResult> OnPostAsync()
+        {
+            if (ModelState.IsValid)
+            {
+                var user = await _userManager.FindByEmailAsync(Input.Email);
+                if (user == null || !(await _userManager.IsEmailConfirmedAsync(user)))
+                {
+                    // Don't reveal that the user does not exist or is not confirmed
+                    return RedirectToPage($"{GlobalConfiguration.BasePath}/Identity/ForgotPasswordConfirmation");
+                }
+
+                var code = await _userManager.GeneratePasswordResetTokenAsync(user);
+                var encodedCode = WebEncoders.Base64UrlEncode(Encoding.UTF8.GetBytes(code));
+                var callbackUrl = Url.Page(
+                    "/Account/ResetPassword",
+                    pageHandler: null,
+                    values: new { area = "Identity", encodedCode },
+                    protocol: Request.Scheme);
+
+                var emailTemplate = new StringBuilder(ConfigurationRepository.Get<string>("Membership", "Template: Reset Password Email"));
+                var basicConfig = ConfigurationRepository.GetConfigurationEntryValuesByGroupName("Basic");
+                var siteName = basicConfig.Value<string>("Name");
+                var address = basicConfig.Value<string>("Address");
+                var profile = UsersRepository.GetAccountProfileByUserId(Guid.Parse(user.Id));
+
+                var emailSubject = "Reset password";
+                emailTemplate.Replace("##SUBJECT##", emailSubject);
+                emailTemplate.Replace("##ACCOUNTCOUNTRY##", profile.Country);
+                emailTemplate.Replace("##ACCOUNTTIMEZONE##", profile.TimeZone);
+                emailTemplate.Replace("##ACCOUNTLANGUAGE##", profile.Language);
+                emailTemplate.Replace("##ACCOUNTEMAIL##", profile.EmailAddress);
+                emailTemplate.Replace("##ACCOUNTNAME##", profile.AccountName);
+                emailTemplate.Replace("##PERSONNAME##", $"{profile.FirstName} {profile.LastName}");
+                emailTemplate.Replace("##CODE##", code);
+                emailTemplate.Replace("##USERID##", user.Id);
+                emailTemplate.Replace("##SITENAME##", siteName);
+                emailTemplate.Replace("##SITEADDRESS##", address);
+                emailTemplate.Replace("##CALLBACKURL##", HtmlEncoder.Default.Encode(callbackUrl));
+
+                await _emailSender.SendEmailAsync(Input.Email, emailSubject, emailTemplate.ToString());
+
+                return RedirectToPage($"{GlobalConfiguration.BasePath}/Identity/ForgotPasswordConfirmation");
+            }
+
+            return Page();
+        }
+    }
+}

ZelWiki/Areas/Identity/Pages/Account/ForgotPasswordConfirmation.cshtml

@@ -0,0 +1,13 @@
+@page
+@model ForgotPasswordConfirmation
+@{
+    var sessionState = ViewData["SessionState"] as ZelWiki.SessionState ?? throw new Exception("Wiki State Context cannot be null.");
+}
+
+<h3>
+    Forgot password confirmation
+</h3>
+
+<p>
+    Please check your email to reset your password.
+</p>

ZelWiki/Areas/Identity/Pages/Account/ForgotPasswordConfirmation.cshtml.cs

@@ -0,0 +1,30 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+#nullable disable
+
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Identity;
+
+namespace ZelWiki.Areas.Identity.Pages.Account
+{
+    /// <summary>
+    ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+    ///     directly from your code. This API may change or be removed in future releases.
+    /// </summary>
+    [AllowAnonymous]
+    public class ForgotPasswordConfirmation : PageModelBase
+    {
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public void OnGet()
+        {
+        }
+        public ForgotPasswordConfirmation(SignInManager<IdentityUser> signInManager)
+                        : base(signInManager)
+        {
+
+        }
+    }
+}

ZelWiki/Areas/Identity/Pages/Account/Lockout.cshtml

@@ -0,0 +1,11 @@
+@page
+@model LockoutModel
+@{
+    var sessionState = ViewData["SessionState"] as ZelWiki.SessionState ?? throw new Exception("Wiki State Context cannot be null.");
+}
+
+<h3>
+    登出
+</h3>
+
+<p>This account has been locked out, please try again later.</p>

ZelWiki/Areas/Identity/Pages/Account/Lockout.cshtml.cs

@@ -0,0 +1,30 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+#nullable disable
+
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Identity;
+
+namespace ZelWiki.Areas.Identity.Pages.Account
+{
+    /// <summary>
+    ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+    ///     directly from your code. This API may change or be removed in future releases.
+    /// </summary>
+    [AllowAnonymous]
+    public class LockoutModel : PageModelBase
+    {
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public void OnGet()
+        {
+        }
+        public LockoutModel(SignInManager<IdentityUser> signInManager)
+                        : base(signInManager)
+        {
+
+        }
+    }
+}

ZelWiki/Areas/Identity/Pages/Account/Login.cshtml

@@ -0,0 +1,52 @@
+@page
+@model LoginModel
+@{
+    var sessionState = ViewData["SessionState"] as ZelWiki.SessionState ?? throw new Exception("Wiki State Context cannot be null.");
+}
+
+<style>
+    #forgot-password {
+        text-decoration: none;
+    }
+</style>
+
+<div class="row">
+    <div class="col-sm-12 col-md-8 col-lg-4">
+        <section>
+            <form id="account" method="post">
+                <div asp-validation-summary="ModelOnly" class="text-danger" role="alert"></div>
+                <div class="form-floating mb-3">
+                    <input asp-for="Input.Email" class="form-control" autocomplete="username" aria-required="true" placeholder="name@example.com" />
+                    <label asp-for="Input.Email" class="form-label">邮箱</label>
+                    <span asp-validation-for="Input.Email" class="text-danger"></span>
+                </div>
+                <div class="form-floating mb-3">
+                    <input asp-for="Input.Password" class="form-control" autocomplete="current-password" aria-required="true" placeholder="password" />
+                    <label asp-for="Input.Password" class="form-label">密码</label>
+                    <span asp-validation-for="Input.Password" class="text-danger"></span>
+                </div>
+                <div class="checkbox mb-3">
+                    <label asp-for="Input.RememberMe" class="form-label">
+                        <input class="form-check-input" asp-for="Input.RememberMe" />
+                        记住账号
+                    </label>
+                </div>
+                <div>
+                    <button id="login-submit" type="submit" class="w-100 btn btn-lg btn-primary">登  录</button>
+                    <br />
+                </div>
+                <div>
+                    <p style="margin-top:5px;">
+                        <a id="forgot-password" asp-page="./ForgotPassword">忘记密码?</a>
+                        <br />
+                        <br />
+                    </p>
+                </div>
+            </form>
+        </section>
+    </div>
+</div>
+
+@section Scripts {
+    <partial name="_ValidationScriptsPartial" />
+}

ZelWiki/Areas/Identity/Pages/Account/Login.cshtml.cs

@@ -0,0 +1,134 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+#nullable disable
+
+using Microsoft.AspNetCore.Authentication;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using System.ComponentModel.DataAnnotations;
+using ZelWiki.Models;
+
+namespace ZelWiki.Areas.Identity.Pages.Account
+{
+    public class LoginModel : PageModelBase
+    {
+        private readonly SignInManager<IdentityUser> _signInManager;
+        private readonly ILogger<LoginModel> _logger;
+
+        public LoginModel(SignInManager<IdentityUser> signInManager, ILogger<LoginModel> logger)
+                        : base(signInManager)
+        {
+            _signInManager = signInManager;
+            _logger = logger;
+        }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        [BindProperty]
+        public InputModel Input { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public IList<AuthenticationScheme> ExternalLogins { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public string ReturnUrl { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        [TempData]
+        public string ErrorMessage { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public class InputModel
+        {
+            /// <summary>
+            ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+            ///     directly from your code. This API may change or be removed in future releases.
+            /// </summary>
+            [Required]
+            [EmailAddress]
+            public string Email { get; set; }
+
+            /// <summary>
+            ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+            ///     directly from your code. This API may change or be removed in future releases.
+            /// </summary>
+            [Required]
+            [DataType(DataType.Password)]
+            public string Password { get; set; }
+
+            /// <summary>
+            ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+            ///     directly from your code. This API may change or be removed in future releases.
+            /// </summary>
+            [Display(Name = "Remember me?")]
+            public bool RememberMe { get; set; }
+        }
+
+        public async Task OnGetAsync(string returnUrl = null)
+        {
+            if (!string.IsNullOrEmpty(ErrorMessage))
+            {
+                ModelState.AddModelError(string.Empty, ErrorMessage);
+            }
+
+            returnUrl ??= Url.Content("~/");
+
+            // Clear the existing external cookie to ensure a clean login process
+            await HttpContext.SignOutAsync(IdentityConstants.ExternalScheme);
+
+            ExternalLogins = (await _signInManager.GetExternalAuthenticationSchemesAsync()).ToList();
+
+            ReturnUrl = returnUrl;
+        }
+
+        public async Task<IActionResult> OnPostAsync(string returnUrl = null)
+        {
+            returnUrl ??= Url.Content("~/");
+
+            ExternalLogins = (await _signInManager.GetExternalAuthenticationSchemesAsync()).ToList();
+
+            if (ModelState.IsValid)
+            {
+                // This doesn't count login failures towards account lockout
+                // To enable password failures to trigger account lockout, set lockoutOnFailure: true
+                var result = await _signInManager.PasswordSignInAsync(Input.Email, Input.Password, Input.RememberMe, lockoutOnFailure: false);
+                if (result.Succeeded)
+                {
+                    _logger.LogInformation("User logged in.");
+                    return Redirect(returnUrl);
+                }
+                if (result.RequiresTwoFactor)
+                {
+                    return RedirectToPage($"{GlobalConfiguration.BasePath}/Identity/LoginWith2fa", new { ReturnUrl = returnUrl, RememberMe = Input.RememberMe });
+                }
+                if (result.IsLockedOut)
+                {
+                    _logger.LogWarning("User account locked out.");
+                    return RedirectToPage($"{GlobalConfiguration.BasePath}/Identity/Lockout");
+                }
+                else
+                {
+                    ModelState.AddModelError(string.Empty, "Invalid login attempt.");
+                    return Page();
+                }
+            }
+
+            // If we got this far, something failed, redisplay form
+            return Page();
+        }
+    }
+}

ZelWiki/Areas/Identity/Pages/Account/LoginWith2fa.cshtml

@@ -0,0 +1,44 @@
+@page
+@using System.Text.Encodings.Web
+@model LoginWith2faModel
+@{
+    var sessionState = ViewData["SessionState"] as ZelWiki.SessionState ?? throw new Exception("Wiki State Context cannot be null.");
+}
+
+<h3>
+    Two-factor authentication
+</h3>
+
+<p>Your login is protected with an authenticator app. Enter your authenticator code below.</p>
+<hr />
+
+<div class="row">
+    <div class="col-md-4">
+        <form method="post" asp-route-returnUrl="@UrlEncoder.Default.Encode(Model.ReturnUrl)">
+            <input asp-for="RememberMe" type="hidden" />
+            <div asp-validation-summary="ModelOnly" class="text-danger" role="alert"></div>
+            <div class="form-floating mb-3">
+                <input asp-for="Input.TwoFactorCode" class="form-control" autocomplete="off" />
+                <label asp-for="Input.TwoFactorCode" class="form-label"></label>
+                <span asp-validation-for="Input.TwoFactorCode" class="text-danger"></span>
+            </div>
+            <div class="checkbox mb-3">
+                <label asp-for="Input.RememberMachine" class="form-label">
+                    <input asp-for="Input.RememberMachine" />
+                    @Html.DisplayNameFor(m => m.Input.RememberMachine)
+                </label>
+            </div>
+            <div>
+                <button type="submit" class="w-100 btn btn-lg btn-primary">Log in</button>
+            </div>
+        </form>
+    </div>
+</div>
+<p>
+    Don't have access to your authenticator device? You can
+    <a id="recovery-code-login" asp-page="./LoginWithRecoveryCode" asp-route-returnUrl="@UrlEncoder.Default.Encode(Model.ReturnUrl)">log in with a recovery code</a>.
+</p>
+
+@section Scripts {
+    <partial name="_ValidationScriptsPartial" />
+}

ZelWiki/Areas/Identity/Pages/Account/LoginWith2fa.cshtml.cs

@@ -0,0 +1,127 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+#nullable disable
+
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using System.ComponentModel.DataAnnotations;
+using ZelWiki.Models;
+
+namespace ZelWiki.Areas.Identity.Pages.Account
+{
+    public class LoginWith2faModel : PageModelBase
+    {
+        private readonly SignInManager<IdentityUser> _signInManager;
+        private readonly UserManager<IdentityUser> _userManager;
+        private readonly ILogger<LoginWith2faModel> _logger;
+
+        public LoginWith2faModel(
+            SignInManager<IdentityUser> signInManager,
+            UserManager<IdentityUser> userManager,
+            ILogger<LoginWith2faModel> logger)
+                        : base(signInManager)
+        {
+            _signInManager = signInManager;
+            _userManager = userManager;
+            _logger = logger;
+        }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        [BindProperty]
+        public InputModel Input { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public bool RememberMe { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public string ReturnUrl { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public class InputModel
+        {
+            /// <summary>
+            ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+            ///     directly from your code. This API may change or be removed in future releases.
+            /// </summary>
+            [Required]
+            [StringLength(7, ErrorMessage = "The {0} must be at least {2} and at max {1} characters long.", MinimumLength = 6)]
+            [DataType(DataType.Text)]
+            [Display(Name = "Authenticator code")]
+            public string TwoFactorCode { get; set; }
+
+            /// <summary>
+            ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+            ///     directly from your code. This API may change or be removed in future releases.
+            /// </summary>
+            [Display(Name = "Remember this machine")]
+            public bool RememberMachine { get; set; }
+        }
+
+        public async Task<IActionResult> OnGetAsync(bool rememberMe, string returnUrl = null)
+        {
+            // Ensure the user has gone through the username & password screen first
+            var user = await _signInManager.GetTwoFactorAuthenticationUserAsync();
+
+            if (user == null)
+            {
+                throw new InvalidOperationException($"Unable to load two-factor authentication user.");
+            }
+
+            ReturnUrl = returnUrl;
+            RememberMe = rememberMe;
+
+            return Page();
+        }
+
+        public async Task<IActionResult> OnPostAsync(bool rememberMe, string returnUrl = null)
+        {
+            if (!ModelState.IsValid)
+            {
+                return Page();
+            }
+
+            returnUrl = returnUrl ?? Url.Content("~/");
+
+            var user = await _signInManager.GetTwoFactorAuthenticationUserAsync();
+            if (user == null)
+            {
+                throw new InvalidOperationException($"Unable to load two-factor authentication user.");
+            }
+
+            var authenticatorCode = Input.TwoFactorCode.Replace(" ", string.Empty).Replace("-", string.Empty);
+
+            var result = await _signInManager.TwoFactorAuthenticatorSignInAsync(authenticatorCode, rememberMe, Input.RememberMachine);
+
+            var userId = await _userManager.GetUserIdAsync(user);
+
+            if (result.Succeeded)
+            {
+                _logger.LogInformation("User with ID '{UserId}' logged in with 2fa.", user.Id);
+                return LocalRedirect(returnUrl);
+            }
+            else if (result.IsLockedOut)
+            {
+                _logger.LogWarning("User with ID '{UserId}' account locked out.", user.Id);
+                return RedirectToPage($"{GlobalConfiguration.BasePath}/Identity/Lockout");
+            }
+            else
+            {
+                _logger.LogWarning("Invalid authenticator code entered for user with ID '{UserId}'.", user.Id);
+                ModelState.AddModelError(string.Empty, "Invalid authenticator code.");
+                return Page();
+            }
+        }
+    }
+}

ZelWiki/Areas/Identity/Pages/Account/LoginWithRecoveryCode.cshtml

@@ -0,0 +1,33 @@
+@page
+@model LoginWithRecoveryCodeModel
+@{
+    var sessionState = ViewData["SessionState"] as ZelWiki.SessionState ?? throw new Exception("Wiki State Context cannot be null.");
+}
+
+<h3>
+    Recovery code verification
+</h3>
+
+<p>
+    You have requested to log in with a recovery code. This login will not be remembered until you provide
+    an authenticator app code at log in or disable 2FA and log in again.
+</p>
+<hr />
+
+<div class="row">
+    <div class="col-md-4">
+        <form method="post">
+            <div asp-validation-summary="ModelOnly" class="text-danger" role="alert"></div>
+            <div class="form-floating mb-3">
+                <input asp-for="Input.RecoveryCode" class="form-control" autocomplete="off" placeholder="RecoveryCode" />
+                <label asp-for="Input.RecoveryCode" class="form-label"></label>
+                <span asp-validation-for="Input.RecoveryCode" class="text-danger"></span>
+            </div>
+            <button type="submit" class="w-100 btn btn-lg btn-primary">Log in</button>
+        </form>
+    </div>
+</div>
+
+@section Scripts {
+    <partial name="_ValidationScriptsPartial" />
+}

ZelWiki/Areas/Identity/Pages/Account/LoginWithRecoveryCode.cshtml.cs

@@ -0,0 +1,110 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+#nullable disable
+
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using System.ComponentModel.DataAnnotations;
+using ZelWiki.Models;
+
+namespace ZelWiki.Areas.Identity.Pages.Account
+{
+    public class LoginWithRecoveryCodeModel : PageModelBase
+    {
+        private readonly SignInManager<IdentityUser> _signInManager;
+        private readonly UserManager<IdentityUser> _userManager;
+        private readonly ILogger<LoginWithRecoveryCodeModel> _logger;
+
+        public LoginWithRecoveryCodeModel(
+            SignInManager<IdentityUser> signInManager,
+            UserManager<IdentityUser> userManager,
+            ILogger<LoginWithRecoveryCodeModel> logger)
+                        : base(signInManager)
+        {
+            _signInManager = signInManager;
+            _userManager = userManager;
+            _logger = logger;
+        }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        [BindProperty]
+        public InputModel Input { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public string ReturnUrl { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public class InputModel
+        {
+            /// <summary>
+            ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+            ///     directly from your code. This API may change or be removed in future releases.
+            /// </summary>
+            [BindProperty]
+            [Required]
+            [DataType(DataType.Text)]
+            [Display(Name = "Recovery Code")]
+            public string RecoveryCode { get; set; }
+        }
+
+        public async Task<IActionResult> OnGetAsync(string returnUrl = null)
+        {
+            // Ensure the user has gone through the username & password screen first
+            var user = await _signInManager.GetTwoFactorAuthenticationUserAsync();
+            if (user == null)
+            {
+                throw new InvalidOperationException($"Unable to load two-factor authentication user.");
+            }
+
+            ReturnUrl = returnUrl;
+
+            return Page();
+        }
+
+        public async Task<IActionResult> OnPostAsync(string returnUrl = null)
+        {
+            if (!ModelState.IsValid)
+            {
+                return Page();
+            }
+
+            var user = await _signInManager.GetTwoFactorAuthenticationUserAsync();
+            if (user == null)
+            {
+                throw new InvalidOperationException($"Unable to load two-factor authentication user.");
+            }
+
+            var recoveryCode = Input.RecoveryCode.Replace(" ", string.Empty);
+
+            var result = await _signInManager.TwoFactorRecoveryCodeSignInAsync(recoveryCode);
+
+            var userId = await _userManager.GetUserIdAsync(user);
+
+            if (result.Succeeded)
+            {
+                _logger.LogInformation("User with ID '{UserId}' logged in with a recovery code.", user.Id);
+                return LocalRedirect(returnUrl ?? Url.Content("~/"));
+            }
+            if (result.IsLockedOut)
+            {
+                _logger.LogWarning("User account locked out.");
+                return RedirectToPage($"{GlobalConfiguration.BasePath}/Identity/Lockout");
+            }
+            else
+            {
+                _logger.LogWarning("Invalid recovery code entered for user with ID '{UserId}' ", user.Id);
+                ModelState.AddModelError(string.Empty, "Invalid recovery code entered.");
+                return Page();
+            }
+        }
+    }
+}

ZelWiki/Areas/Identity/Pages/Account/Logout.cshtml

@@ -0,0 +1,29 @@
+@page
+@model LogoutModel
+@{
+    var sessionState = ViewData["SessionState"] as ZelWiki.SessionState ?? throw new Exception("Wiki State Context cannot be null.");
+}
+
+<h3>
+    退出
+</h3>
+
+<p>
+    退出登录前确保其他人没有在使用当前会话，退出后您需要重新登录<br /><br />
+</p>
+<hr />
+
+<header>
+    @{
+        if (User.Identity?.IsAuthenticated ?? false)
+        {
+            <form class="form-inline" asp-area="Identity" asp-page="/Account/Logout" asp-route-returnUrl="@Url.Page("/", new { area = "" })" method="post">
+                <button type="submit" class="btn btn-primary rounded-0">退出</button>
+            </form>
+        }
+        else
+        {
+            <p>操作成功</p>
+        }
+    }
+</header>

ZelWiki/Areas/Identity/Pages/Account/Logout.cshtml.cs

@@ -0,0 +1,107 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+#nullable disable
+
+using Microsoft.AspNetCore.Authentication;
+using Microsoft.AspNetCore.Authentication.Cookies;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+
+namespace ZelWiki.Areas.Identity.Pages.Account
+{
+    public class LogoutModel : PageModelBase
+    {
+        private readonly SignInManager<IdentityUser> _signInManager;
+        private readonly ILogger<LogoutModel> _logger;
+        private readonly IAuthenticationSchemeProvider _schemeProvider;
+        private readonly UserManager<IdentityUser> _userManager;
+
+        public LogoutModel(SignInManager<IdentityUser> signInManager, UserManager<IdentityUser> userManager, ILogger<LogoutModel> logger, IAuthenticationSchemeProvider schemeProvider)
+                        : base(signInManager)
+        {
+            _schemeProvider = schemeProvider;
+            _signInManager = signInManager;
+            _userManager = userManager;
+            _logger = logger;
+        }
+
+        public async Task<IActionResult> OnPost(string returnUrl = null)
+        {
+            await _signInManager.SignOutAsync();
+
+            /*
+            var allSchemes = await _schemeProvider.GetAllSchemesAsync();
+            foreach (var scheme in allSchemes)
+            {
+                try
+                {
+                    await HttpContext.SignOutAsync(scheme.Name);
+                }
+                catch
+                {
+                }
+            }
+            */
+
+            /*
+            // Explicitly delete the cookie with the correct path.
+            Response.Cookies.Delete(".AspNetCore.Identity.Application", new CookieOptions
+            {
+                Path = "/TightWiki", // Must match the cookie's path.
+                HttpOnly = true,
+                Secure = true // Use this if the cookie is secure.
+            });
+            */
+
+            /*
+            if (HttpContext.Request.Cookies.Count > 0)
+            {
+                var siteCookies = HttpContext.Request.Cookies
+                    .Where(c => c.Key.Contains(".AspNetCore.")
+                        || c.Key.Contains("Microsoft.Authentication"));
+                foreach (var cookie in siteCookies)
+                {
+                    Response.Cookies.Delete(cookie.Key);
+                }
+            }
+
+            await HttpContext.SignOutAsync(
+                user.AuthenticationScheme);
+
+            HttpContext.Session.Clear();
+
+            await _signInManager.SignOutAsync();
+            await HttpContext.SignOutAsync();
+
+            var allSchemes = await _schemeProvider.GetAllSchemesAsync();
+            foreach (var scheme in allSchemes)
+            {
+                try
+                {
+                    await HttpContext.SignOutAsync(scheme.Name);
+                }
+                catch
+                {
+                }
+            }
+
+            foreach (var cookie in Request.Cookies.Keys)
+            {
+                Response.Cookies.Delete(cookie);
+            }
+            */
+
+            _logger.LogInformation("User logged out.");
+            if (returnUrl != null)
+            {
+                return LocalRedirect(returnUrl);
+            }
+            else
+            {
+                // This needs to be a redirect so that the browser performs a new
+                // request and the identity for the user gets updated.
+                return RedirectToPage();
+            }
+        }
+    }
+}

ZelWiki/Areas/Identity/Pages/Account/Manage/ChangePassword.cshtml

@@ -0,0 +1,37 @@
+@page
+@model ChangePasswordModel
+@{
+    ViewData["Title"] = "Change password";
+    ViewData["ActivePage"] = ManageNavPages.ChangePassword;
+    var sessionState = ViewData["SessionState"] as ZelWiki.SessionState ?? throw new Exception("Wiki State Context cannot be null.");
+}
+
+<h3>@ViewData["Title"]</h3>
+<partial name="_StatusMessage" for="StatusMessage" />
+<div class="row">
+    <div class="col-md-6">
+        <form id="change-password-form" method="post">
+            <div asp-validation-summary="ModelOnly" class="text-danger" role="alert"></div>
+            <div class="form-floating mb-3">
+                <input asp-for="Input.OldPassword" class="form-control" autocomplete="current-password" aria-required="true" placeholder="请输入旧密码." />
+                <label asp-for="Input.OldPassword" class="form-label">旧密码</label>
+                <span asp-validation-for="Input.OldPassword" class="text-danger"></span>
+            </div>
+            <div class="form-floating mb-3">
+                <input asp-for="Input.NewPassword" class="form-control" autocomplete="new-password" aria-required="true" placeholder="请输入新密码." />
+                <label asp-for="Input.NewPassword" class="form-label">新密码</label>
+                <span asp-validation-for="Input.NewPassword" class="text-danger"></span>
+            </div>
+            <div class="form-floating mb-3">
+                <input asp-for="Input.ConfirmPassword" class="form-control" autocomplete="new-password" aria-required="true" placeholder="请再次输入新密码."/>
+                <label asp-for="Input.ConfirmPassword" class="form-label">请再次输入新密码</label>
+                <span asp-validation-for="Input.ConfirmPassword" class="text-danger"></span>
+            </div>
+            <button type="submit" class="w-100 btn btn-lg btn-primary">确认修改</button>
+        </form>
+    </div>
+</div>
+
+@section Scripts {
+    <partial name="_ValidationScriptsPartial" />
+}

ZelWiki/Areas/Identity/Pages/Account/Manage/ChangePassword.cshtml.cs

@@ -0,0 +1,138 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+#nullable disable
+
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using System.ComponentModel.DataAnnotations;
+using ZelWiki.Library;
+using ZelWiki.Models;
+using ZelWiki.Repository;
+
+namespace ZelWiki.Areas.Identity.Pages.Account.Manage
+{
+    public class ChangePasswordModel : PageModelBase
+    {
+        private readonly UserManager<IdentityUser> _userManager;
+        private readonly SignInManager<IdentityUser> _signInManager;
+        private readonly ILogger<ChangePasswordModel> _logger;
+
+        public ChangePasswordModel(
+            UserManager<IdentityUser> userManager,
+            SignInManager<IdentityUser> signInManager,
+            ILogger<ChangePasswordModel> logger)
+                        : base(signInManager)
+        {
+            _userManager = userManager;
+            _signInManager = signInManager;
+            _logger = logger;
+        }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        [BindProperty]
+        public InputModel Input { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        [TempData]
+        public string StatusMessage { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public class InputModel
+        {
+            /// <summary>
+            ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+            ///     directly from your code. This API may change or be removed in future releases.
+            /// </summary>
+            [Required]
+            [DataType(DataType.Password)]
+            [Display(Name = "Current password")]
+            public string OldPassword { get; set; }
+
+            /// <summary>
+            ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+            ///     directly from your code. This API may change or be removed in future releases.
+            /// </summary>
+            [Required]
+            [StringLength(100, ErrorMessage = "The {0} must be at least {2} and at max {1} characters long.", MinimumLength = 6)]
+            [DataType(DataType.Password)]
+            [Display(Name = "New password")]
+            public string NewPassword { get; set; }
+
+            /// <summary>
+            ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+            ///     directly from your code. This API may change or be removed in future releases.
+            /// </summary>
+            [DataType(DataType.Password)]
+            [Display(Name = "Confirm new password")]
+            [Compare("NewPassword", ErrorMessage = "The new password and confirmation password do not match.")]
+            public string ConfirmPassword { get; set; }
+        }
+
+        public async Task<IActionResult> OnGetAsync()
+        {
+            var user = await _userManager.GetUserAsync(User);
+            if (user == null)
+            {
+                return NotFound($"Unable to load user with ID '{_userManager.GetUserId(User)}'.");
+            }
+
+            var hasPassword = await _userManager.HasPasswordAsync(user);
+            if (!hasPassword)
+            {
+                return RedirectToPage($"{GlobalConfiguration.BasePath}/Identity/SetPassword");
+            }
+
+            return Page();
+        }
+
+        public async Task<IActionResult> OnPostAsync()
+        {
+            if (!ModelState.IsValid)
+            {
+                return Page();
+            }
+
+            var user = await _userManager.GetUserAsync(User);
+            if (user == null)
+            {
+                return NotFound($"Unable to load user with ID '{_userManager.GetUserId(User)}'.");
+            }
+
+            var profile = UsersRepository.GetAccountProfileByUserId(Guid.Parse(user.Id));
+            if (user == null)
+            {
+                return NotFound($"Unable to load profile with ID '{_userManager.GetUserId(User)}'.");
+            }
+
+            var changePasswordResult = await _userManager.ChangePasswordAsync(user, Input.OldPassword, Input.NewPassword);
+            if (!changePasswordResult.Succeeded)
+            {
+                foreach (var error in changePasswordResult.Errors)
+                {
+                    ModelState.AddModelError(string.Empty, error.Description);
+                }
+                return Page();
+            }
+
+            if (profile.AccountName.Equals(Constants.DEFAULTACCOUNT, StringComparison.CurrentCultureIgnoreCase))
+            {
+                UsersRepository.SetAdminPasswordIsChanged();
+            }
+
+            await _signInManager.RefreshSignInAsync(user);
+            _logger.LogInformation("User changed their password successfully.");
+            StatusMessage = "Your password has been changed.";
+
+            return RedirectToPage();
+        }
+    }
+}

ZelWiki/Areas/Identity/Pages/Account/Manage/Disable2fa.cshtml

@@ -0,0 +1,26 @@
+@page
+@model Disable2faModel
+@{
+    ViewData["Title"] = "Disable two-factor authentication (2FA)";
+    ViewData["ActivePage"] = ManageNavPages.TwoFactorAuthentication;
+    var sessionState = ViewData["SessionState"] as ZelWiki.SessionState ?? throw new Exception("Wiki State Context cannot be null.");
+}
+
+<partial name="_StatusMessage" for="StatusMessage" />
+<h3>@ViewData["Title"]</h3>
+
+<div class="alert alert-warning" role="alert">
+    <p>
+        <strong>This action only disables 2FA.</strong>
+    </p>
+    <p>
+        Disabling 2FA does not change the keys used in authenticator apps. If you wish to change the key
+        used in an authenticator app you should <a asp-page="./ResetAuthenticator">reset your authenticator keys.</a>
+    </p>
+</div>
+
+<div>
+    <form method="post">
+        <button class="btn btn-danger" type="submit">Disable 2FA</button>
+    </form>
+</div>

ZelWiki/Areas/Identity/Pages/Account/Manage/Disable2fa.cshtml.cs

@@ -0,0 +1,67 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+#nullable disable
+
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using ZelWiki.Models;
+
+namespace ZelWiki.Areas.Identity.Pages.Account.Manage
+{
+    public class Disable2faModel : PageModelBase
+    {
+        private readonly UserManager<IdentityUser> _userManager;
+        private readonly ILogger<Disable2faModel> _logger;
+
+        public Disable2faModel(SignInManager<IdentityUser> signInManager,
+            UserManager<IdentityUser> userManager,
+            ILogger<Disable2faModel> logger)
+                        : base(signInManager)
+        {
+            _userManager = userManager;
+            _logger = logger;
+        }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        [TempData]
+        public string StatusMessage { get; set; }
+
+        public async Task<IActionResult> OnGet()
+        {
+            var user = await _userManager.GetUserAsync(User);
+            if (user == null)
+            {
+                return NotFound($"Unable to load user with ID '{_userManager.GetUserId(User)}'.");
+            }
+
+            if (!await _userManager.GetTwoFactorEnabledAsync(user))
+            {
+                throw new InvalidOperationException($"Cannot disable 2FA for user as it's not currently enabled.");
+            }
+
+            return Page();
+        }
+
+        public async Task<IActionResult> OnPostAsync()
+        {
+            var user = await _userManager.GetUserAsync(User);
+            if (user == null)
+            {
+                return NotFound($"Unable to load user with ID '{_userManager.GetUserId(User)}'.");
+            }
+
+            var disable2faResult = await _userManager.SetTwoFactorEnabledAsync(user, false);
+            if (!disable2faResult.Succeeded)
+            {
+                throw new InvalidOperationException($"Unexpected error occurred disabling 2FA.");
+            }
+
+            _logger.LogInformation("User with ID '{UserId}' has disabled 2fa.", _userManager.GetUserId(User));
+            StatusMessage = "2fa has been disabled. You can reenable 2fa when you setup an authenticator app";
+            return RedirectToPage($"{GlobalConfiguration.BasePath}/Identity/TwoFactorAuthentication");
+        }
+    }
+}

ZelWiki/Areas/Identity/Pages/Account/Manage/Email.cshtml

@@ -0,0 +1,45 @@
+@page
+@model EmailModel
+@{
+    ViewData["Title"] = "Manage Email";
+    ViewData["ActivePage"] = ManageNavPages.Email;
+    var sessionState = ViewData["SessionState"] as ZelWiki.SessionState ?? throw new Exception("Wiki State Context cannot be null.");
+}
+
+<h3>@ViewData["Title"]</h3>
+<partial name="_StatusMessage" for="StatusMessage" />
+<div class="row">
+    <div class="col-md-6">
+        <form id="email-form" method="post">
+            <div asp-validation-summary="All" class="text-danger" role="alert"></div>
+            @if (Model.IsEmailConfirmed)
+            {
+                <div class="form-floating mb-3 input-group">
+                    <input asp-for="Email" class="form-control" placeholder="Please enter your email." disabled />
+                        <div class="input-group-append">
+                            <span class="h-100 input-group-text text-success font-weight-bold">✓</span>
+                        </div>
+                    <label asp-for="Email" class="form-label"></label>
+                </div>
+            }
+            else
+            {
+                <div class="form-floating mb-3">
+                    <input asp-for="Email" class="form-control" placeholder="Please enter your email." disabled />
+                    <label asp-for="Email" class="form-label"></label>
+                    <button id="email-verification" type="submit" asp-page-handler="SendVerificationEmail" class="btn btn-link">Send verification email</button>
+                </div>
+            }
+            <div class="form-floating mb-3">
+                <input asp-for="Input.NewEmail" class="form-control" autocomplete="email" aria-required="true" placeholder="Please enter new email." />
+                <label asp-for="Input.NewEmail" class="form-label"></label>
+                <span asp-validation-for="Input.NewEmail" class="text-danger"></span>
+            </div>
+            <button id="change-email-button" type="submit" asp-page-handler="ChangeEmail" class="w-100 btn btn-lg btn-primary">Change email</button>
+        </form>
+    </div>
+</div>
+
+@section Scripts {
+    <partial name="_ValidationScriptsPartial" />
+}

ZelWiki/Areas/Identity/Pages/Account/Manage/Email.cshtml.cs

@@ -0,0 +1,189 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+#nullable disable
+
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.WebUtilities;
+using System.ComponentModel.DataAnnotations;
+using System.Text;
+using System.Text.Encodings.Web;
+using ZelWiki.Library.Interfaces;
+using ZelWiki.Repository;
+
+namespace ZelWiki.Areas.Identity.Pages.Account.Manage
+{
+    public class EmailModel : PageModelBase
+    {
+        private readonly UserManager<IdentityUser> _userManager;
+        private readonly SignInManager<IdentityUser> _signInManager;
+        private readonly IWikiEmailSender _emailSender;
+
+        public EmailModel(
+            UserManager<IdentityUser> userManager,
+            SignInManager<IdentityUser> signInManager,
+            IWikiEmailSender emailSender)
+                        : base(signInManager)
+        {
+            _userManager = userManager;
+            _signInManager = signInManager;
+            _emailSender = emailSender;
+        }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public string Email { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public bool IsEmailConfirmed { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        [TempData]
+        public string StatusMessage { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        [BindProperty]
+        public InputModel Input { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public class InputModel
+        {
+            /// <summary>
+            ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+            ///     directly from your code. This API may change or be removed in future releases.
+            /// </summary>
+            [Required]
+            [EmailAddress]
+            [Display(Name = "New email")]
+            public string NewEmail { get; set; }
+        }
+
+        private async Task LoadAsync(IdentityUser user)
+        {
+            var email = await _userManager.GetEmailAsync(user);
+            Email = email;
+
+            Input = new InputModel
+            {
+                NewEmail = email,
+            };
+
+            IsEmailConfirmed = await _userManager.IsEmailConfirmedAsync(user);
+        }
+
+        public async Task<IActionResult> OnGetAsync()
+        {
+            var user = await _userManager.GetUserAsync(User);
+            if (user == null)
+            {
+                return NotFound($"Unable to load user with ID '{_userManager.GetUserId(User)}'.");
+            }
+
+            await LoadAsync(user);
+            return Page();
+        }
+
+        public async Task<IActionResult> OnPostChangeEmailAsync()
+        {
+            var user = await _userManager.GetUserAsync(User);
+            if (user == null)
+            {
+                return NotFound($"Unable to load user with ID '{_userManager.GetUserId(User)}'.");
+            }
+
+            if (!ModelState.IsValid)
+            {
+                await LoadAsync(user);
+                return Page();
+            }
+
+            var email = await _userManager.GetEmailAsync(user);
+            if (Input.NewEmail != email)
+            {
+                var userId = await _userManager.GetUserIdAsync(user);
+                var code = await _userManager.GenerateChangeEmailTokenAsync(user, Input.NewEmail);
+                var encodedCode = WebEncoders.Base64UrlEncode(Encoding.UTF8.GetBytes(code));
+
+                var callbackUrl = Url.Page(
+                    "/Account/ConfirmEmailChange",
+                    pageHandler: null,
+                    values: new { area = "Identity", userId = userId, email = Input.NewEmail, code = encodedCode },
+                    protocol: Request.Scheme);
+
+                var emailTemplate = new StringBuilder(ConfigurationRepository.Get<string>("Membership", "Template: Account Verification Email"));
+                var basicConfig = ConfigurationRepository.GetConfigurationEntryValuesByGroupName("Basic");
+                var siteName = basicConfig.Value<string>("Name");
+                var address = basicConfig.Value<string>("Address");
+                var profile = UsersRepository.GetAccountProfileByUserId(Guid.Parse(userId));
+
+                var emailSubject = "Confirm your email";
+                emailTemplate.Replace("##SUBJECT##", emailSubject);
+                emailTemplate.Replace("##ACCOUNTCOUNTRY##", profile.Country);
+                emailTemplate.Replace("##ACCOUNTTIMEZONE##", profile.TimeZone);
+                emailTemplate.Replace("##ACCOUNTLANGUAGE##", profile.Language);
+                emailTemplate.Replace("##ACCOUNTEMAIL##", profile.EmailAddress);
+                emailTemplate.Replace("##ACCOUNTNAME##", profile.AccountName);
+                emailTemplate.Replace("##PERSONNAME##", $"{profile.FirstName} {profile.LastName}");
+                emailTemplate.Replace("##CODE##", code);
+                emailTemplate.Replace("##USERID##", userId);
+                emailTemplate.Replace("##SITENAME##", siteName);
+                emailTemplate.Replace("##SITEADDRESS##", address);
+                emailTemplate.Replace("##CALLBACKURL##", HtmlEncoder.Default.Encode(callbackUrl));
+
+                await _emailSender.SendEmailAsync(Input.NewEmail, emailSubject, emailTemplate.ToString());
+                StatusMessage = "Confirmation link to change email sent. Please check your email.";
+
+                return RedirectToPage();
+            }
+
+            StatusMessage = "Your email is unchanged.";
+            return RedirectToPage();
+        }
+
+        public async Task<IActionResult> OnPostSendVerificationEmailAsync()
+        {
+            var user = await _userManager.GetUserAsync(User);
+            if (user == null)
+            {
+                return NotFound($"Unable to load user with ID '{_userManager.GetUserId(User)}'.");
+            }
+
+            if (!ModelState.IsValid)
+            {
+                await LoadAsync(user);
+                return Page();
+            }
+
+            var userId = await _userManager.GetUserIdAsync(user);
+            var email = await _userManager.GetEmailAsync(user);
+            var code = await _userManager.GenerateEmailConfirmationTokenAsync(user);
+            code = WebEncoders.Base64UrlEncode(Encoding.UTF8.GetBytes(code));
+            var callbackUrl = Url.Page(
+                "/Account/ConfirmEmail",
+                pageHandler: null,
+                values: new { area = "Identity", userId = userId, code = code },
+                protocol: Request.Scheme);
+            await _emailSender.SendEmailAsync(
+                email,
+                "Confirm your email",
+                $"Please confirm your account by <a href='{HtmlEncoder.Default.Encode(callbackUrl)}'>clicking here</a>.");
+
+            StatusMessage = "Verification email sent. Please check your email.";
+            return RedirectToPage();
+        }
+    }
+}

ZelWiki/Areas/Identity/Pages/Account/Manage/EnableAuthenticator.cshtml

@@ -0,0 +1,54 @@
+@page
+@model EnableAuthenticatorModel
+@{
+    ViewData["Title"] = "Configure authenticator app";
+    ViewData["ActivePage"] = ManageNavPages.TwoFactorAuthentication;
+    var sessionState = ViewData["SessionState"] as ZelWiki.SessionState ?? throw new Exception("Wiki State Context cannot be null.");
+}
+
+<partial name="_StatusMessage" for="StatusMessage" />
+<h3>@ViewData["Title"]</h3>
+<div>
+    <p>To use an authenticator app go through the following steps:</p>
+    <ol class="list">
+        <li>
+            <p>
+                Download a two-factor authenticator app like Microsoft Authenticator for
+                <a href="https://go.microsoft.com/fwlink/?Linkid=825072">Android</a> and
+                <a href="https://go.microsoft.com/fwlink/?Linkid=825073">iOS</a> or
+                Google Authenticator for
+                <a href="https://play.google.com/store/apps/details?id=com.google.android.apps.authenticator2&amp;hl=en">Android</a> and
+                <a href="https://itunes.apple.com/us/app/google-authenticator/id388497605?mt=8">iOS</a>.
+            </p>
+        </li>
+        <li>
+            <p>Scan the QR Code or enter this key <kbd>@Model.SharedKey</kbd> into your two factor authenticator app. Spaces and casing do not matter.</p>
+            <div class="alert alert-info">Learn how to <a href="https://go.microsoft.com/fwlink/?Linkid=852423">enable QR code generation</a>.</div>
+            <div id="qrCode"></div>
+            <div id="qrCodeData" data-url="@Model.AuthenticatorUri"></div>
+        </li>
+        <li>
+            <p>
+                Once you have scanned the QR code or input the key above, your two factor authentication app will provide you
+                with a unique code. Enter the code in the confirmation box below.
+            </p>
+            <div class="row">
+                <div class="col-md-6">
+                    <form id="send-code" method="post">
+                        <div class="form-floating mb-3">
+                            <input asp-for="Input.Code" class="form-control" autocomplete="off" placeholder="Please enter the code."/>
+                            <label asp-for="Input.Code" class="control-label form-label">Verification Code</label>
+                            <span asp-validation-for="Input.Code" class="text-danger"></span>
+                        </div>
+                        <button type="submit" class="w-100 btn btn-lg btn-primary">Verify</button>
+                        <div asp-validation-summary="ModelOnly" class="text-danger" role="alert"></div>
+                    </form>
+                </div>
+            </div>
+        </li>
+    </ol>
+</div>
+
+@section Scripts {
+    <partial name="_ValidationScriptsPartial" />
+}

ZelWiki/Areas/Identity/Pages/Account/Manage/EnableAuthenticator.cshtml.cs

@@ -0,0 +1,185 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+#nullable disable
+
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using System.ComponentModel.DataAnnotations;
+using System.Globalization;
+using System.Text;
+using System.Text.Encodings.Web;
+using ZelWiki.Models;
+
+namespace ZelWiki.Areas.Identity.Pages.Account.Manage
+{
+    public class EnableAuthenticatorModel : PageModelBase
+    {
+        private readonly UserManager<IdentityUser> _userManager;
+        private readonly ILogger<EnableAuthenticatorModel> _logger;
+        private readonly UrlEncoder _urlEncoder;
+
+        private const string AuthenticatorUriFormat = "otpauth://totp/{0}:{1}?secret={2}&issuer={0}&digits=6";
+
+        public EnableAuthenticatorModel(SignInManager<IdentityUser> signInManager,
+            UserManager<IdentityUser> userManager,
+            ILogger<EnableAuthenticatorModel> logger,
+            UrlEncoder urlEncoder)
+                        : base(signInManager)
+        {
+            _userManager = userManager;
+            _logger = logger;
+            _urlEncoder = urlEncoder;
+        }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public string SharedKey { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public string AuthenticatorUri { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        [TempData]
+        public string[] RecoveryCodes { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        [TempData]
+        public string StatusMessage { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        [BindProperty]
+        public InputModel Input { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public class InputModel
+        {
+            /// <summary>
+            ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+            ///     directly from your code. This API may change or be removed in future releases.
+            /// </summary>
+            [Required]
+            [StringLength(7, ErrorMessage = "The {0} must be at least {2} and at max {1} characters long.", MinimumLength = 6)]
+            [DataType(DataType.Text)]
+            [Display(Name = "Verification Code")]
+            public string Code { get; set; }
+        }
+
+        public async Task<IActionResult> OnGetAsync()
+        {
+            var user = await _userManager.GetUserAsync(User);
+            if (user == null)
+            {
+                return NotFound($"Unable to load user with ID '{_userManager.GetUserId(User)}'.");
+            }
+
+            await LoadSharedKeyAndQrCodeUriAsync(user);
+
+            return Page();
+        }
+
+        public async Task<IActionResult> OnPostAsync()
+        {
+            var user = await _userManager.GetUserAsync(User);
+            if (user == null)
+            {
+                return NotFound($"Unable to load user with ID '{_userManager.GetUserId(User)}'.");
+            }
+
+            if (!ModelState.IsValid)
+            {
+                await LoadSharedKeyAndQrCodeUriAsync(user);
+                return Page();
+            }
+
+            // Strip spaces and hyphens
+            var verificationCode = Input.Code.Replace(" ", string.Empty).Replace("-", string.Empty);
+
+            var is2faTokenValid = await _userManager.VerifyTwoFactorTokenAsync(
+                user, _userManager.Options.Tokens.AuthenticatorTokenProvider, verificationCode);
+
+            if (!is2faTokenValid)
+            {
+                ModelState.AddModelError("Input.Code", "Verification code is invalid.");
+                await LoadSharedKeyAndQrCodeUriAsync(user);
+                return Page();
+            }
+
+            await _userManager.SetTwoFactorEnabledAsync(user, true);
+            var userId = await _userManager.GetUserIdAsync(user);
+            _logger.LogInformation("User with ID '{UserId}' has enabled 2FA with an authenticator app.", userId);
+
+            StatusMessage = "Your authenticator app has been verified.";
+
+            if (await _userManager.CountRecoveryCodesAsync(user) == 0)
+            {
+                var recoveryCodes = await _userManager.GenerateNewTwoFactorRecoveryCodesAsync(user, 10);
+                RecoveryCodes = recoveryCodes.ToArray();
+                return RedirectToPage($"{GlobalConfiguration.BasePath}/Identity/ShowRecoveryCodes");
+            }
+            else
+            {
+                return RedirectToPage($"{GlobalConfiguration.BasePath}/Identity/TwoFactorAuthentication");
+            }
+        }
+
+        private async Task LoadSharedKeyAndQrCodeUriAsync(IdentityUser user)
+        {
+            // Load the authenticator key & QR code URI to display on the form
+            var unformattedKey = await _userManager.GetAuthenticatorKeyAsync(user);
+            if (string.IsNullOrEmpty(unformattedKey))
+            {
+                await _userManager.ResetAuthenticatorKeyAsync(user);
+                unformattedKey = await _userManager.GetAuthenticatorKeyAsync(user);
+            }
+
+            SharedKey = FormatKey(unformattedKey);
+
+            var email = await _userManager.GetEmailAsync(user);
+            AuthenticatorUri = GenerateQrCodeUri(email, unformattedKey);
+        }
+
+        private string FormatKey(string unformattedKey)
+        {
+            var result = new StringBuilder();
+            int currentPosition = 0;
+            while (currentPosition + 4 < unformattedKey.Length)
+            {
+                result.Append(unformattedKey.AsSpan(currentPosition, 4)).Append(' ');
+                currentPosition += 4;
+            }
+            if (currentPosition < unformattedKey.Length)
+            {
+                result.Append(unformattedKey.AsSpan(currentPosition));
+            }
+
+            return result.ToString().ToLowerInvariant();
+        }
+
+        private string GenerateQrCodeUri(string email, string unformattedKey)
+        {
+            return string.Format(
+                CultureInfo.InvariantCulture,
+                AuthenticatorUriFormat,
+                _urlEncoder.Encode("Microsoft.AspNetCore.Identity.UI"),
+                _urlEncoder.Encode(email),
+                unformattedKey);
+        }
+    }
+}

ZelWiki/Areas/Identity/Pages/Account/Manage/ExternalLogins.cshtml

@@ -0,0 +1,52 @@
+@page
+@model ExternalLoginsModel
+@{
+    ViewData["Title"] = "Manage your external logins";
+    ViewData["ActivePage"] = ManageNavPages.ExternalLogins;
+    var sessionState = ViewData["SessionState"] as ZelWiki.SessionState ?? throw new Exception("Wiki State Context cannot be null.");
+}
+
+<partial name="_StatusMessage" for="StatusMessage" />
+@if (Model.CurrentLogins?.Count > 0)
+{
+    <h3>Registered Logins</h3>
+    <table class="table">
+        <tbody>
+            @foreach (var login in Model.CurrentLogins)
+            {
+                <tr>
+                    <td id="@($"login-provider-{login.LoginProvider}")">@login.ProviderDisplayName</td>
+                    <td>
+                        @if (Model.ShowRemoveButton)
+                        {
+                            <form id="@($"remove-login-{login.LoginProvider}")" asp-page-handler="RemoveLogin" method="post">
+                                <div>
+                                    <input asp-for="@login.LoginProvider" name="LoginProvider" type="hidden" />
+                                    <input asp-for="@login.ProviderKey" name="ProviderKey" type="hidden" />
+                                    <button type="submit" class="btn btn-primary" title="Remove this @login.ProviderDisplayName login from your account">Remove</button>
+                                </div>
+                            </form>
+                        }
+                        else
+                        {
+                            @: &nbsp;
+                        }
+                    </td>
+                </tr>
+            }
+        </tbody>
+    </table>
+}
+@if (Model.OtherLogins?.Count > 0)
+{
+    <form id="link-login-form" asp-page-handler="LinkLogin" method="post" class="form-horizontal">
+        <div id="socialLoginList">
+            <p>
+                @foreach (var provider in Model.OtherLogins)
+                {
+                    <button id="@($"link-login-button-{provider.Name}")" type="submit" class="btn btn-primary" name="provider" value="@provider.Name" title="Log in using your @provider.DisplayName account">@provider.DisplayName</button>
+                }
+            </p>
+        </div>
+    </form>
+}

ZelWiki/Areas/Identity/Pages/Account/Manage/ExternalLogins.cshtml.cs

@@ -0,0 +1,136 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+#nullable disable
+
+using Microsoft.AspNetCore.Authentication;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+
+namespace ZelWiki.Areas.Identity.Pages.Account.Manage
+{
+    public class ExternalLoginsModel : PageModelBase
+    {
+        private readonly UserManager<IdentityUser> _userManager;
+        private readonly SignInManager<IdentityUser> _signInManager;
+        private readonly IUserStore<IdentityUser> _userStore;
+
+        public ExternalLoginsModel(
+            UserManager<IdentityUser> userManager,
+            SignInManager<IdentityUser> signInManager,
+            IUserStore<IdentityUser> userStore)
+                        : base(signInManager)
+        {
+            _userManager = userManager;
+            _signInManager = signInManager;
+            _userStore = userStore;
+        }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public IList<UserLoginInfo> CurrentLogins { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public IList<AuthenticationScheme> OtherLogins { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public bool ShowRemoveButton { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        [TempData]
+        public string StatusMessage { get; set; }
+
+        public async Task<IActionResult> OnGetAsync()
+        {
+            var user = await _userManager.GetUserAsync(User);
+            if (user == null)
+            {
+                return NotFound($"Unable to load user with ID '{_userManager.GetUserId(User)}'.");
+            }
+
+            CurrentLogins = await _userManager.GetLoginsAsync(user);
+            OtherLogins = (await _signInManager.GetExternalAuthenticationSchemesAsync())
+                .Where(auth => CurrentLogins.All(ul => auth.Name != ul.LoginProvider))
+                .ToList();
+
+            string passwordHash = null;
+            if (_userStore is IUserPasswordStore<IdentityUser> userPasswordStore)
+            {
+                passwordHash = await userPasswordStore.GetPasswordHashAsync(user, HttpContext.RequestAborted);
+            }
+
+            ShowRemoveButton = passwordHash != null || CurrentLogins.Count > 1;
+            return Page();
+        }
+
+        public async Task<IActionResult> OnPostRemoveLoginAsync(string loginProvider, string providerKey)
+        {
+            var user = await _userManager.GetUserAsync(User);
+            if (user == null)
+            {
+                return NotFound($"Unable to load user with ID '{_userManager.GetUserId(User)}'.");
+            }
+
+            var result = await _userManager.RemoveLoginAsync(user, loginProvider, providerKey);
+            if (!result.Succeeded)
+            {
+                StatusMessage = "The external login was not removed.";
+                return RedirectToPage();
+            }
+
+            await _signInManager.RefreshSignInAsync(user);
+            StatusMessage = "The external login was removed.";
+            return RedirectToPage();
+        }
+
+        public async Task<IActionResult> OnPostLinkLoginAsync(string provider)
+        {
+            // Clear the existing external cookie to ensure a clean login process
+            await HttpContext.SignOutAsync(IdentityConstants.ExternalScheme);
+
+            // Request a redirect to the external login provider to link a login for the current user
+            var redirectUrl = Url.Page("./ExternalLogins", pageHandler: "LinkLoginCallback");
+            var properties = _signInManager.ConfigureExternalAuthenticationProperties(provider, redirectUrl, _userManager.GetUserId(User));
+            return new ChallengeResult(provider, properties);
+        }
+
+        public async Task<IActionResult> OnGetLinkLoginCallbackAsync()
+        {
+            var user = await _userManager.GetUserAsync(User);
+            if (user == null)
+            {
+                return NotFound($"Unable to load user with ID '{_userManager.GetUserId(User)}'.");
+            }
+
+            var userId = await _userManager.GetUserIdAsync(user);
+            var info = await _signInManager.GetExternalLoginInfoAsync(userId);
+            if (info == null)
+            {
+                throw new InvalidOperationException($"Unexpected error occurred loading external login info.");
+            }
+
+            var result = await _userManager.AddLoginAsync(user, info);
+            if (!result.Succeeded)
+            {
+                StatusMessage = "The external login was not added. External logins can only be associated with one account.";
+                return RedirectToPage();
+            }
+
+            // Clear the existing external cookie to ensure a clean login process
+            await HttpContext.SignOutAsync(IdentityConstants.ExternalScheme);
+
+            StatusMessage = "The external login was added.";
+            return RedirectToPage();
+        }
+    }
+}

ZelWiki/Areas/Identity/Pages/Account/Manage/GenerateRecoveryCodes.cshtml

@@ -0,0 +1,28 @@
+@page
+@model GenerateRecoveryCodesModel
+@{
+    ViewData["Title"] = "Generate two-factor authentication (2FA) recovery codes";
+    ViewData["ActivePage"] = ManageNavPages.TwoFactorAuthentication;
+    var sessionState = ViewData["SessionState"] as ZelWiki.SessionState ?? throw new Exception("Wiki State Context cannot be null.");
+}
+
+<partial name="_StatusMessage" for="StatusMessage" />
+<h3>@ViewData["Title"]</h3>
+<div class="alert alert-warning" role="alert">
+    <p>
+        <span class="glyphicon glyphicon-warning-sign"></span>
+        <strong>Put these codes in a safe place.</strong>
+    </p>
+    <p>
+        If you lose your device and don't have the recovery codes you will lose access to your account.
+    </p>
+    <p>
+        Generating new recovery codes does not change the keys used in authenticator apps. If you wish to change the key
+        used in an authenticator app you should <a asp-page="./ResetAuthenticator">reset your authenticator keys.</a>
+    </p>
+</div>
+<div>
+    <form method="post">
+        <button class="btn btn-danger" type="submit">Generate Recovery Codes</button>
+    </form>
+</div>

ZelWiki/Areas/Identity/Pages/Account/Manage/GenerateRecoveryCodes.cshtml.cs

@@ -0,0 +1,79 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+#nullable disable
+
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using ZelWiki.Models;
+
+namespace ZelWiki.Areas.Identity.Pages.Account.Manage
+{
+    public class GenerateRecoveryCodesModel : PageModelBase
+    {
+        private readonly UserManager<IdentityUser> _userManager;
+        private readonly ILogger<GenerateRecoveryCodesModel> _logger;
+
+        public GenerateRecoveryCodesModel(SignInManager<IdentityUser> signInManager,
+            UserManager<IdentityUser> userManager,
+            ILogger<GenerateRecoveryCodesModel> logger)
+                        : base(signInManager)
+        {
+            _userManager = userManager;
+            _logger = logger;
+        }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        [TempData]
+        public string[] RecoveryCodes { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        [TempData]
+        public string StatusMessage { get; set; }
+
+        public async Task<IActionResult> OnGetAsync()
+        {
+            var user = await _userManager.GetUserAsync(User);
+            if (user == null)
+            {
+                return NotFound($"Unable to load user with ID '{_userManager.GetUserId(User)}'.");
+            }
+
+            var isTwoFactorEnabled = await _userManager.GetTwoFactorEnabledAsync(user);
+            if (!isTwoFactorEnabled)
+            {
+                throw new InvalidOperationException($"Cannot generate recovery codes for user because they do not have 2FA enabled.");
+            }
+
+            return Page();
+        }
+
+        public async Task<IActionResult> OnPostAsync()
+        {
+            var user = await _userManager.GetUserAsync(User);
+            if (user == null)
+            {
+                return NotFound($"Unable to load user with ID '{_userManager.GetUserId(User)}'.");
+            }
+
+            var isTwoFactorEnabled = await _userManager.GetTwoFactorEnabledAsync(user);
+            var userId = await _userManager.GetUserIdAsync(user);
+            if (!isTwoFactorEnabled)
+            {
+                throw new InvalidOperationException($"Cannot generate recovery codes for user as they do not have 2FA enabled.");
+            }
+
+            var recoveryCodes = await _userManager.GenerateNewTwoFactorRecoveryCodesAsync(user, 10);
+            RecoveryCodes = recoveryCodes.ToArray();
+
+            _logger.LogInformation("User with ID '{UserId}' has generated new 2FA recovery codes.", userId);
+            StatusMessage = "You have generated new recovery codes.";
+            return RedirectToPage($"{GlobalConfiguration.BasePath}/Identity/ShowRecoveryCodes");
+        }
+    }
+}

ZelWiki/Areas/Identity/Pages/Account/Manage/Index.cshtml

@@ -0,0 +1,4 @@
+@page
+@model IndexModel
+@{
+}

ZelWiki/Areas/Identity/Pages/Account/Manage/Index.cshtml.cs

@@ -0,0 +1,18 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+#nullable disable
+
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.RazorPages;
+using ZelWiki.Models;
+
+namespace ZelWiki.Areas.Identity.Pages.Account.Manage
+{
+    public class IndexModel : PageModel
+    {
+        public IActionResult OnGetAsync()
+        {
+            return Redirect($"{GlobalConfiguration.BasePath}/Identity/Account/Manage/ChangePassword");
+        }
+    }
+}

ZelWiki/Areas/Identity/Pages/Account/Manage/ManageNavPages.cs

@@ -0,0 +1,74 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+#nullable disable
+
+using Microsoft.AspNetCore.Mvc.Rendering;
+
+namespace ZelWiki.Areas.Identity.Pages.Account.Manage
+{
+    /// <summary>
+    ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+    ///     directly from your code. This API may change or be removed in future releases.
+    /// </summary>
+    public static class ManageNavPages
+    {
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public static string Email => "Email";
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public static string ChangePassword => "ChangePassword";
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public static string ExternalLogins => "ExternalLogins";
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public static string TwoFactorAuthentication => "TwoFactorAuthentication";
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public static string EmailNavClass(ViewContext viewContext) => PageNavClass(viewContext, Email);
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public static string ChangePasswordNavClass(ViewContext viewContext) => PageNavClass(viewContext, ChangePassword);
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public static string ExternalLoginsNavClass(ViewContext viewContext) => PageNavClass(viewContext, ExternalLogins);
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public static string TwoFactorAuthenticationNavClass(ViewContext viewContext) => PageNavClass(viewContext, TwoFactorAuthentication);
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public static string PageNavClass(ViewContext viewContext, string page)
+        {
+            var activePage = viewContext.ViewData["ActivePage"] as string
+                ?? System.IO.Path.GetFileNameWithoutExtension(viewContext.ActionDescriptor.DisplayName);
+            return string.Equals(activePage, page, StringComparison.OrdinalIgnoreCase) ? "active" : null;
+        }
+    }
+}

ZelWiki/Areas/Identity/Pages/Account/Manage/ResetAuthenticator.cshtml

@@ -0,0 +1,25 @@
+@page
+@model ResetAuthenticatorModel
+@{
+    ViewData["Title"] = "Reset authenticator key";
+    ViewData["ActivePage"] = ManageNavPages.TwoFactorAuthentication;
+    var sessionState = ViewData["SessionState"] as ZelWiki.SessionState ?? throw new Exception("Wiki State Context cannot be null.");
+}
+
+<partial name="_StatusMessage" for="StatusMessage" />
+<h3>@ViewData["Title"]</h3>
+<div class="alert alert-warning" role="alert">
+    <p>
+        <span class="glyphicon glyphicon-warning-sign"></span>
+        <strong>If you reset your authenticator key your authenticator app will not work until you reconfigure it.</strong>
+    </p>
+    <p>
+        This process disables 2FA until you verify your authenticator app.
+        If you do not complete your authenticator app configuration you may lose access to your account.
+    </p>
+</div>
+<div>
+    <form id="reset-authenticator-form" method="post">
+        <button id="reset-authenticator-button" class="btn btn-danger" type="submit">Reset authenticator key</button>
+    </form>
+</div>

ZelWiki/Areas/Identity/Pages/Account/Manage/ResetAuthenticator.cshtml.cs

@@ -0,0 +1,66 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+#nullable disable
+
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using ZelWiki.Models;
+
+namespace ZelWiki.Areas.Identity.Pages.Account.Manage
+{
+    public class ResetAuthenticatorModel : PageModelBase
+    {
+        private readonly UserManager<IdentityUser> _userManager;
+        private readonly SignInManager<IdentityUser> _signInManager;
+        private readonly ILogger<ResetAuthenticatorModel> _logger;
+
+        public ResetAuthenticatorModel(
+            UserManager<IdentityUser> userManager,
+            SignInManager<IdentityUser> signInManager,
+            ILogger<ResetAuthenticatorModel> logger)
+                        : base(signInManager)
+
+        {
+            _userManager = userManager;
+            _signInManager = signInManager;
+            _logger = logger;
+        }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        [TempData]
+        public string StatusMessage { get; set; }
+
+        public async Task<IActionResult> OnGet()
+        {
+            var user = await _userManager.GetUserAsync(User);
+            if (user == null)
+            {
+                return NotFound($"Unable to load user with ID '{_userManager.GetUserId(User)}'.");
+            }
+
+            return Page();
+        }
+
+        public async Task<IActionResult> OnPostAsync()
+        {
+            var user = await _userManager.GetUserAsync(User);
+            if (user == null)
+            {
+                return NotFound($"Unable to load user with ID '{_userManager.GetUserId(User)}'.");
+            }
+
+            await _userManager.SetTwoFactorEnabledAsync(user, false);
+            await _userManager.ResetAuthenticatorKeyAsync(user);
+            var userId = await _userManager.GetUserIdAsync(user);
+            _logger.LogInformation("User with ID '{UserId}' has reset their authentication app key.", user.Id);
+
+            await _signInManager.RefreshSignInAsync(user);
+            StatusMessage = "Your authenticator app key has been reset, you will need to configure your authenticator app using the new key.";
+
+            return RedirectToPage($"{GlobalConfiguration.BasePath}/Identity/EnableAuthenticator");
+        }
+    }
+}

ZelWiki/Areas/Identity/Pages/Account/Manage/SetPassword.cshtml

@@ -0,0 +1,36 @@
+@page
+@model SetPasswordModel
+@{
+    ViewData["Title"] = "Set password";
+    ViewData["ActivePage"] = ManageNavPages.ChangePassword;
+    var sessionState = ViewData["SessionState"] as ZelWiki.SessionState ?? throw new Exception("Wiki State Context cannot be null.");
+}
+
+<h3>Set your password</h3>
+<partial name="_StatusMessage" for="StatusMessage" />
+<p class="text-info">
+    You do not have a local username/password for this site. Add a local
+    account so you can log in without an external login.
+</p>
+<div class="row">
+    <div class="col-md-6">
+        <form id="set-password-form" method="post">
+            <div asp-validation-summary="ModelOnly" class="text-danger" role="alert"></div>
+            <div class="form-floating mb-3">
+                <input asp-for="Input.NewPassword" class="form-control" autocomplete="new-password" placeholder="Please enter your new password."/>
+                <label asp-for="Input.NewPassword" class="form-label"></label>
+                <span asp-validation-for="Input.NewPassword" class="text-danger"></span>
+            </div>
+            <div class="form-floating mb-3">
+                <input asp-for="Input.ConfirmPassword" class="form-control" autocomplete="new-password" placeholder="Please confirm your new password."/>
+                <label asp-for="Input.ConfirmPassword" class="form-label"></label>
+                <span asp-validation-for="Input.ConfirmPassword" class="text-danger"></span>
+            </div>
+            <button type="submit" class="w-100 btn btn-lg btn-primary">Set password</button>
+        </form>
+    </div>
+</div>
+
+@section Scripts {
+    <partial name="_ValidationScriptsPartial" />
+}

ZelWiki/Areas/Identity/Pages/Account/Manage/SetPassword.cshtml.cs

@@ -0,0 +1,114 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+#nullable disable
+
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using System.ComponentModel.DataAnnotations;
+using ZelWiki.Models;
+
+namespace ZelWiki.Areas.Identity.Pages.Account.Manage
+{
+    public class SetPasswordModel : PageModelBase
+    {
+        private readonly UserManager<IdentityUser> _userManager;
+        private readonly SignInManager<IdentityUser> _signInManager;
+
+        public SetPasswordModel(
+            UserManager<IdentityUser> userManager,
+            SignInManager<IdentityUser> signInManager)
+                        : base(signInManager)
+
+        {
+            _userManager = userManager;
+            _signInManager = signInManager;
+        }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        [BindProperty]
+        public InputModel Input { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        [TempData]
+        public string StatusMessage { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public class InputModel
+        {
+            /// <summary>
+            ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+            ///     directly from your code. This API may change or be removed in future releases.
+            /// </summary>
+            [Required]
+            [StringLength(100, ErrorMessage = "The {0} must be at least {2} and at max {1} characters long.", MinimumLength = 6)]
+            [DataType(DataType.Password)]
+            [Display(Name = "New password")]
+            public string NewPassword { get; set; }
+
+            /// <summary>
+            ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+            ///     directly from your code. This API may change or be removed in future releases.
+            /// </summary>
+            [DataType(DataType.Password)]
+            [Display(Name = "Confirm new password")]
+            [Compare("NewPassword", ErrorMessage = "The new password and confirmation password do not match.")]
+            public string ConfirmPassword { get; set; }
+        }
+
+        public async Task<IActionResult> OnGetAsync()
+        {
+            var user = await _userManager.GetUserAsync(User);
+            if (user == null)
+            {
+                return NotFound($"Unable to load user with ID '{_userManager.GetUserId(User)}'.");
+            }
+
+            var hasPassword = await _userManager.HasPasswordAsync(user);
+
+            if (hasPassword)
+            {
+                return RedirectToPage($"{GlobalConfiguration.BasePath}/Identity/ChangePassword");
+            }
+
+            return Page();
+        }
+
+        public async Task<IActionResult> OnPostAsync()
+        {
+            if (!ModelState.IsValid)
+            {
+                return Page();
+            }
+
+            var user = await _userManager.GetUserAsync(User);
+            if (user == null)
+            {
+                return NotFound($"Unable to load user with ID '{_userManager.GetUserId(User)}'.");
+            }
+
+            var addPasswordResult = await _userManager.AddPasswordAsync(user, Input.NewPassword);
+            if (!addPasswordResult.Succeeded)
+            {
+                foreach (var error in addPasswordResult.Errors)
+                {
+                    ModelState.AddModelError(string.Empty, error.Description);
+                }
+                return Page();
+            }
+
+            await _signInManager.RefreshSignInAsync(user);
+            StatusMessage = "Your password has been set.";
+
+            return RedirectToPage();
+        }
+    }
+}

ZelWiki/Areas/Identity/Pages/Account/Manage/ShowRecoveryCodes.cshtml

@@ -0,0 +1,26 @@
+@page
+@model ShowRecoveryCodesModel
+@{
+    ViewData["Title"] = "Recovery codes";
+    ViewData["ActivePage"] = "TwoFactorAuthentication";
+    var sessionState = ViewData["SessionState"] as ZelWiki.SessionState ?? throw new Exception("Wiki State Context cannot be null.");
+}
+
+<partial name="_StatusMessage" for="StatusMessage" />
+<h3>@ViewData["Title"]</h3>
+<div class="alert alert-warning" role="alert">
+    <p>
+        <strong>Put these codes in a safe place.</strong>
+    </p>
+    <p>
+        If you lose your device and don't have the recovery codes you will lose access to your account.
+    </p>
+</div>
+<div class="row">
+    <div class="col-md-12">
+        @for (var row = 0; row < Model.RecoveryCodes.Length; row += 2)
+        {
+            <code class="recovery-code">@Model.RecoveryCodes[row]</code><text>&nbsp;</text><code class="recovery-code">@Model.RecoveryCodes[row + 1]</code><br />
+        }
+    </div>
+</div>

ZelWiki/Areas/Identity/Pages/Account/Manage/ShowRecoveryCodes.cshtml.cs

@@ -0,0 +1,45 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+#nullable disable
+
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.RazorPages;
+using ZelWiki.Models;
+
+namespace ZelWiki.Areas.Identity.Pages.Account.Manage
+{
+    /// <summary>
+    ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+    ///     directly from your code. This API may change or be removed in future releases.
+    /// </summary>
+    public class ShowRecoveryCodesModel : PageModel
+    {
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        [TempData]
+        public string[] RecoveryCodes { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        [TempData]
+        public string StatusMessage { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public IActionResult OnGet()
+        {
+            if (RecoveryCodes == null || RecoveryCodes.Length == 0)
+            {
+                return RedirectToPage($"{GlobalConfiguration.BasePath}/Identity/TwoFactorAuthentication");
+            }
+
+            return Page();
+        }
+    }
+}

ZelWiki/Areas/Identity/Pages/Account/Manage/TwoFactorAuthentication.cshtml

@@ -0,0 +1,72 @@
+@page
+@using Microsoft.AspNetCore.Http.Features
+@model TwoFactorAuthenticationModel
+@{
+    ViewData["Title"] = "Two-factor authentication (2FA)";
+    ViewData["ActivePage"] = ManageNavPages.TwoFactorAuthentication;
+    var sessionState = ViewData["SessionState"] as ZelWiki.SessionState ?? throw new Exception("Wiki State Context cannot be null.");
+}
+
+<partial name="_StatusMessage" for="StatusMessage" />
+<h3>@ViewData["Title"]</h3>
+@{
+    var consentFeature = HttpContext.Features.Get<ITrackingConsentFeature>();
+    @if (consentFeature?.CanTrack ?? true)
+    {
+        @if (Model.Is2faEnabled)
+        {
+            if (Model.RecoveryCodesLeft == 0)
+            {
+                <div class="alert alert-danger">
+                    <strong>You have no recovery codes left.</strong>
+                    <p>You must <a asp-page="./GenerateRecoveryCodes">generate a new set of recovery codes</a> before you can log in with a recovery code.</p>
+                </div>
+            }
+            else if (Model.RecoveryCodesLeft == 1)
+            {
+                <div class="alert alert-danger">
+                    <strong>You have 1 recovery code left.</strong>
+                    <p>You can <a asp-page="./GenerateRecoveryCodes">generate a new set of recovery codes</a>.</p>
+                </div>
+            }
+            else if (Model.RecoveryCodesLeft <= 3)
+            {
+                <div class="alert alert-warning">
+                    <strong>You have @Model.RecoveryCodesLeft recovery codes left.</strong>
+                    <p>You should <a asp-page="./GenerateRecoveryCodes">generate a new set of recovery codes</a>.</p>
+                </div>
+            }
+
+            if (Model.IsMachineRemembered)
+            {
+                <form method="post" style="display: inline-block">
+                    <button type="submit" class="btn btn-primary">Forget this browser</button>
+                </form>
+            }
+            <a asp-page="./Disable2fa" class="btn btn-primary">Disable 2FA</a>
+            <a asp-page="./GenerateRecoveryCodes" class="btn btn-primary">Reset recovery codes</a>
+        }
+
+        <h4>Authenticator app</h4>
+        @if (!Model.HasAuthenticator)
+        {
+            <a id="enable-authenticator" asp-page="./EnableAuthenticator" class="btn btn-primary">Add authenticator app</a>
+        }
+        else
+        {
+            <a id="enable-authenticator" asp-page="./EnableAuthenticator" class="btn btn-primary">Set up authenticator app</a>
+            <a id="reset-authenticator" asp-page="./ResetAuthenticator" class="btn btn-primary">Reset authenticator app</a>
+        }
+    }
+    else
+    {
+        <div class="alert alert-danger">
+            <strong>Privacy and cookie policy have not been accepted.</strong>
+            <p>You must accept the policy before you can enable two factor authentication.</p>
+        </div>
+    }
+}
+
+@section Scripts {
+    <partial name="_ValidationScriptsPartial" />
+}

ZelWiki/Areas/Identity/Pages/Account/Manage/TwoFactorAuthentication.cshtml.cs

@@ -0,0 +1,86 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+#nullable disable
+
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+
+namespace ZelWiki.Areas.Identity.Pages.Account.Manage
+{
+    public class TwoFactorAuthenticationModel : PageModelBase
+    {
+        private readonly UserManager<IdentityUser> _userManager;
+        private readonly SignInManager<IdentityUser> _signInManager;
+        private readonly ILogger<TwoFactorAuthenticationModel> _logger;
+
+        public TwoFactorAuthenticationModel(
+            UserManager<IdentityUser> userManager, SignInManager<IdentityUser> signInManager, ILogger<TwoFactorAuthenticationModel> logger)
+            : base(signInManager)
+        {
+            _userManager = userManager;
+            _signInManager = signInManager;
+            _logger = logger;
+        }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public bool HasAuthenticator { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public int RecoveryCodesLeft { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        [BindProperty]
+        public bool Is2faEnabled { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public bool IsMachineRemembered { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        [TempData]
+        public string StatusMessage { get; set; }
+
+        public async Task<IActionResult> OnGetAsync()
+        {
+            var user = await _userManager.GetUserAsync(User);
+            if (user == null)
+            {
+                return NotFound($"Unable to load user with ID '{_userManager.GetUserId(User)}'.");
+            }
+
+            HasAuthenticator = await _userManager.GetAuthenticatorKeyAsync(user) != null;
+            Is2faEnabled = await _userManager.GetTwoFactorEnabledAsync(user);
+            IsMachineRemembered = await _signInManager.IsTwoFactorClientRememberedAsync(user);
+            RecoveryCodesLeft = await _userManager.CountRecoveryCodesAsync(user);
+
+            return Page();
+        }
+
+        public async Task<IActionResult> OnPostAsync()
+        {
+            var user = await _userManager.GetUserAsync(User);
+            if (user == null)
+            {
+                return NotFound($"Unable to load user with ID '{_userManager.GetUserId(User)}'.");
+            }
+
+            await _signInManager.ForgetTwoFactorClientAsync();
+            StatusMessage = "The current browser has been forgotten. When you login again from this browser you will be prompted for your 2fa code.";
+            return RedirectToPage();
+        }
+    }
+}

ZelWiki/Areas/Identity/Pages/Account/Manage/_ManageNav.cshtml

@@ -0,0 +1,9 @@
+@inject SignInManager<IdentityUser> SignInManager
+@{
+    var sessionState = ViewData["SessionState"] as ZelWiki.SessionState ?? throw new Exception("Wiki State Context cannot be null.");
+}
+<ul class="nav nav-pills flex-column">
+    <li class="nav-item"><a class="nav-link @ManageNavPages.ChangePasswordNavClass(ViewContext)" id="change-password" asp-page="./ChangePassword">ÐÞ¸ÄÃÜÂë</a></li>
+
+
+</ul>

ZelWiki/Areas/Identity/Pages/Account/Manage/_StatusMessage.cshtml

@@ -0,0 +1,10 @@
+@model string
+
+@if (!String.IsNullOrEmpty(Model))
+{
+    var statusMessageClass = Model.StartsWith("Error") ? "danger" : "success";
+    <div class="alert alert-@statusMessageClass alert-dismissible" role="alert">
+        <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
+        @Model
+    </div>
+}

ZelWiki/Areas/Identity/Pages/Account/Manage/_ViewImports.cshtml

@@ -0,0 +1 @@
+@using ZelWiki.Areas.Identity.Pages.Account.Manage

ZelWiki/Areas/Identity/Pages/Account/Register.cshtml

@@ -0,0 +1,161 @@
+@page
+@using ZelWiki.Models
+@using System.Text.Encodings.Web
+@model RegisterModel
+@{
+    var sessionState = ViewData["SessionState"] as ZelWiki.SessionState ?? throw new Exception("Wiki State Context cannot be null.");
+}
+
+<div class="row">
+    <div class="col-md-8">
+        <form id="registerForm" asp-route-returnUrl="@UrlEncoder.Default.Encode(Model.ReturnUrl ?? "")" method="post">
+            <h4>Create a new account.</h4>
+            <hr />
+
+            <div asp-validation-summary="ModelOnly" class="text-danger" role="alert"></div>
+
+            <div class="form-group row mb-3">
+                <label for="Input.Email" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => Model.Input.Email)</strong></label>
+                <div class="col-sm-10">
+                    @Html.TextBoxFor(m => Model.Input.Email, new { @class = "form-control", autocomplete = "email", placeholder = "name@example.com" })
+                    <div class="text-danger">@Html.ValidationMessageFor(m => Model.Input.Email)</div>
+                </div>
+            </div>
+
+            <div class="form-group row mb-3">
+                <label for="Input.Password" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => Model.Input.Password)</strong></label>
+                <div class="col-sm-10">
+                    @Html.PasswordFor(m => Model.Input.Password, new { @class = "form-control", autocomplete = "password", placeholder = "required" })
+                    <div class="text-danger">@Html.ValidationMessageFor(m => Model.Input.Password)</div>
+                </div>
+            </div>
+
+            <div class="form-group row mb-3">
+                <label for="Input.ConfirmPassword" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => Model.Input.ConfirmPassword)</strong></label>
+                <div class="col-sm-10">
+                    @Html.PasswordFor(m => Model.Input.ConfirmPassword, new { @class = "form-control", autocomplete = "confirmpassword", placeholder = "required" })
+                    <div class="text-danger">@Html.ValidationMessageFor(m => Model.Input.ConfirmPassword)</div>
+                </div>
+            </div>
+
+            <div class="form-group row mb-3">
+                <label for="Input.AccountName" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => Model.Input.AccountName)</strong></label>
+                <div class="col-sm-10">
+                    @Html.TextBoxFor(m => Model.Input.AccountName, new { @class = "form-control", placeholder = "required" })
+                    <small class="form-text text-muted">This account name will be visible publicly.</small>
+                    <div class="text-danger">@Html.ValidationMessageFor(m => Model.Input.AccountName)</div>
+                </div>
+            </div>
+
+            <div class="form-group row mb-1">
+                <label for="Input.FirstName" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => Model.Input.FirstName)</strong></label>
+                <div class="col-sm-10">
+                    @Html.TextBoxFor(m => Model.Input.FirstName, new { @class = "form-control", placeholder = "not required" })
+                    <div class="text-danger">@Html.ValidationMessageFor(m => Model.Input.FirstName)</div>
+                </div>
+            </div>
+
+            <div class="form-group row mb-3">
+                <label for="Input.Input.LastName" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => Model.Input.LastName)</strong></label>
+                <div class="col-sm-10">
+                    @Html.TextBoxFor(m => Model.Input.LastName, new { @class = "form-control", placeholder = "not required" })
+                    <div class="text-danger">@Html.ValidationMessageFor(m => Model.Input.LastName)</div>
+                </div>
+            </div>
+
+            <div class="form-group row mb-1">
+                <label for="Input.Input.Country" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => Model.Input.Country)</strong></label>
+                <div class="col-sm-10">
+                    <select name="Input.Country" id="Input.Country" class="form-control">
+                        <option value="" style="color:#ccc !important;">Select a country</option>
+                        @foreach (var item in Model.Input.Countries)
+                        {
+                            <option value="@item.Value" selected=@(Model.Input.Country == item.Value ? "selected" : null)>
+                                @item.Text
+                            </option>
+                        }
+                    </select>
+                    <div class="text-danger">@Html.ValidationMessageFor(m => Model.Input.Country)</div>
+                </div>
+            </div>
+
+            <div class="form-group row mb-1">
+                <label for="Input.Input.Language" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => Model.Input.Language)</strong></label>
+                <div class="col-sm-10">
+                    <select name="Input.Language" id="Input.Language" class="form-control">
+                        <option value="" style="color:#ccc !important;">Select a language</option>
+                        @foreach (var item in Model.Input.Languages)
+                        {
+                            <option value="@item.Value" selected=@(Model.Input.Language == item.Value ? "selected" : null)>
+                                @item.Text
+                            </option>
+                        }
+                    </select>
+                    <div class="text-danger">@Html.ValidationMessageFor(m => Model.Input.Language)</div>
+                </div>
+            </div>
+
+            <div class="form-group row mb-1">
+                <label for="Input.Input.TimeZone" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => Model.Input.TimeZone)</strong></label>
+                <div class="col-sm-10">
+                    <select name="Input.TimeZone" id="Input.TimeZone" class="form-control">
+                        <option value="" style="color:#ccc !important;">Select a time-zone</option>
+                        @foreach (var item in Model.Input.TimeZones)
+                        {
+                            <option value="@item.Value" selected=@(Model.Input.TimeZone == item.Value ? "selected" : null)>
+                                @item.Text
+                            </option>
+                        }
+                    </select>
+                    <div class="text-danger">@Html.ValidationMessageFor(m => Model.Input.TimeZone)</div>
+                </div>
+            </div>
+
+            <div>
+                <button id="login-submit" type="submit" class="w-100 btn btn-lg btn-primary">Signup</button>
+                <br /><br />
+            </div>
+        </form>
+    </div>
+
+    @if ((Model.ExternalLogins?.Count ?? 0) > 0)
+    {
+        <div class="col-md-4">
+            <section>
+                <h4>Use another service to register.</h4>
+                <hr />
+                <form id="external-account" asp-page="./ExternalLogin" asp-route-returnUrl="@UrlEncoder.Default.Encode(Model.ReturnUrl ?? "")" method="post" class="form-horizontal">
+                    <div>
+                        <p>
+                            @foreach (var provider in Model.ExternalLogins!)
+                            {
+                                if (provider.Name == "Google")
+                                {
+                                    <button type="submit" class="btn w-100 mb-3 d-flex align-items-center" name="provider" value="@provider.Name" title="Log in using your Google account">
+                                        <img src="@GlobalConfiguration.BasePath/images/external/google-signin.svg" alt="Google" class="me-2" />
+                                    </button>
+                                }
+                                else if (provider.Name == "Microsoft")
+                                {
+                                    <button type="submit" class="btn w-100 mb-3 d-flex align-items-center" name="provider" value="@provider.Name" title="Log in using your Microsoft account">
+                                        <img src="@GlobalConfiguration.BasePath/images/external/microsoft-signin.svg" alt="Microsoft" class="me-2" />
+                                    </button>
+                                }
+                                else
+                                {
+                                    <button type="submit" class="btn btn-primary w-100 mb-3" name="provider" value="@provider.Name" title="Log in using your @provider.DisplayName account">
+                                        @provider.DisplayName
+                                    </button>
+                                }
+                            }
+                        </p>
+                    </div>
+                </form>
+            </section>
+        </div>
+    }
+</div>
+
+@section Scripts {
+    <partial name="_ValidationScriptsPartial" />
+}

ZelWiki/Areas/Identity/Pages/Account/Register.cshtml.cs

@@ -0,0 +1,250 @@
+using Microsoft.AspNetCore.Authentication;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.WebUtilities;
+using NTDLS.Helpers;
+using System.ComponentModel.DataAnnotations;
+using System.Security.Claims;
+using System.Text;
+using System.Text.Encodings.Web;
+using ZelWiki.Library;
+using ZelWiki.Library.Interfaces;
+using ZelWiki.Models;
+using ZelWiki.Repository;
+
+namespace ZelWiki.Areas.Identity.Pages.Account
+{
+    public class RegisterModel : PageModelBase
+    {
+        private readonly SignInManager<IdentityUser> _signInManager;
+        private readonly UserManager<IdentityUser> _userManager;
+        private readonly IUserStore<IdentityUser> _userStore;
+        private readonly IUserEmailStore<IdentityUser> _emailStore;
+        private readonly ILogger<RegisterModel> _logger;
+        private readonly IWikiEmailSender _emailSender;
+
+        public RegisterModel(
+            UserManager<IdentityUser> userManager,
+            IUserStore<IdentityUser> userStore,
+            SignInManager<IdentityUser> signInManager,
+            ILogger<RegisterModel> logger,
+            IWikiEmailSender emailSender)
+                        : base(signInManager)
+        {
+            _userManager = userManager;
+            _userStore = userStore;
+            _emailStore = GetEmailStore();
+            _signInManager = signInManager;
+            _logger = logger;
+            _emailSender = emailSender;
+        }
+
+        [BindProperty]
+        public InputModel Input { get; set; } = new();
+
+        [BindProperty]
+        public string? ReturnUrl { get; set; }
+
+        public IList<AuthenticationScheme>? ExternalLogins { get; set; }
+
+        public class InputModel
+        {
+            public List<TimeZoneItem> TimeZones { get; set; } = new();
+            public List<CountryItem> Countries { get; set; } = new();
+            public List<LanguageItem> Languages { get; set; } = new();
+
+
+            [Display(Name = "Account Name")]
+            [Required(ErrorMessage = "Account Name is required")]
+            public string AccountName { get; set; } = string.Empty;
+
+            [Display(Name = "First Name")]
+            public string? FirstName { get; set; }
+
+            [Display(Name = "Last Name")]
+            public string? LastName { get; set; } = string.Empty;
+
+            [Display(Name = "Time-Zone")]
+            [Required(ErrorMessage = "TimeZone is required")]
+            public string TimeZone { get; set; } = string.Empty;
+
+            [Display(Name = "Country")]
+            [Required(ErrorMessage = "Country is required")]
+            public string Country { get; set; } = string.Empty;
+
+            [Display(Name = "Language")]
+            [Required(ErrorMessage = "Language is required")]
+            public string Language { get; set; } = string.Empty;
+
+            [Required]
+            [EmailAddress]
+            [Display(Name = "Email")]
+            public string Email { get; set; } = string.Empty;
+
+            [Required]
+            [StringLength(100, ErrorMessage = "The {0} must be at least {2} and at max {1} characters long.", MinimumLength = 6)]
+            [DataType(DataType.Password)]
+            [Display(Name = "Password")]
+            public string Password { get; set; } = string.Empty;
+
+            /// <summary>
+            ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+            ///     directly from your code. This API may change or be removed in future releases.
+            /// </summary>
+            [DataType(DataType.Password)]
+            [Display(Name = "Confirm password")]
+            [Compare("Password", ErrorMessage = "The password and confirmation password do not match.")]
+            public string ConfirmPassword { get; set; } = string.Empty;
+        }
+
+        private void PopulateDefaults()
+        {
+            Input.TimeZones = TimeZoneItem.GetAll();
+            Input.Countries = CountryItem.GetAll();
+            Input.Languages = LanguageItem.GetAll();
+
+            var membershipConfig = ConfigurationRepository.GetConfigurationEntryValuesByGroupName("Membership");
+
+            if (string.IsNullOrEmpty(Input.TimeZone))
+                Input.TimeZone = membershipConfig.Value<string>("Default TimeZone").EnsureNotNull();
+
+            if (string.IsNullOrEmpty(Input.Country))
+                Input.Country = membershipConfig.Value<string>("Default Country").EnsureNotNull();
+
+            if (string.IsNullOrEmpty(Input.Language))
+                Input.Language = membershipConfig.Value<string>("Default Language").EnsureNotNull();
+        }
+
+
+        public async Task<IActionResult> OnGetAsync(string? returnUrl = null)
+        {
+            if (GlobalConfiguration.AllowSignup != true)
+            {
+                return Redirect($"{GlobalConfiguration.BasePath}/Identity/Account/RegistrationIsNotAllowed");
+            }
+            PopulateDefaults();
+
+            ReturnUrl = returnUrl;
+            ExternalLogins = (await _signInManager.GetExternalAuthenticationSchemesAsync()).ToList();
+            return Page();
+        }
+
+        public async Task<IActionResult> OnPostAsync(string? returnUrl = null)
+        {
+            if (GlobalConfiguration.AllowSignup != true)
+            {
+                return Redirect($"{GlobalConfiguration.BasePath}/Identity/Account/RegistrationIsNotAllowed");
+            }
+
+            PopulateDefaults();
+
+            if (!ModelState.IsValid)
+            {
+                return Page();
+            }
+
+            if (string.IsNullOrWhiteSpace(Input.AccountName))
+            {
+                ModelState.AddModelError("Input.AccountName", "Account Name is required.");
+                return Page();
+            }
+            else if (UsersRepository.DoesProfileAccountExist(Input.AccountName))
+            {
+                ModelState.AddModelError("Input.AccountName", "Account Name is already in use.");
+                return Page();
+            }
+
+            returnUrl ??= Url.Content("~/");
+            ExternalLogins = (await _signInManager.GetExternalAuthenticationSchemesAsync()).ToList();
+            if (ModelState.IsValid)
+            {
+                var user = new IdentityUser()
+                {
+                    UserName = Input.Email,
+                    Email = Input.Email
+                };
+
+                var result = await _userManager.CreateAsync(user, Input.Password);
+                if (result.Succeeded)
+                {
+                    _logger.LogInformation("User created a new account with password.");
+
+                    var userId = await _userManager.GetUserIdAsync(user);
+
+                    var membershipConfig = ConfigurationRepository.GetConfigurationEntryValuesByGroupName("Membership");
+
+                    UsersRepository.CreateProfile(Guid.Parse(userId), Input.AccountName);
+
+                    var claimsToAdd = new List<Claim>
+                    {
+                        new (ClaimTypes.Role, membershipConfig.Value<string>("Default Signup Role").EnsureNotNull()),
+                        new ("timezone", Input.TimeZone),
+                        new (ClaimTypes.Country, Input.Country),
+                        new ("language", Input.Language),
+                        new ("firstname", Input.FirstName ?? ""),
+                        new ("lastname", Input.LastName ?? ""),
+                    };
+
+                    SecurityRepository.UpsertUserClaims(_userManager, user, claimsToAdd);
+
+                    if (_userManager.Options.SignIn.RequireConfirmedAccount)
+                    {
+                        var code = await _userManager.GenerateEmailConfirmationTokenAsync(user);
+                        var encodedCode = WebEncoders.Base64UrlEncode(Encoding.UTF8.GetBytes(code));
+
+                        var callbackUrl = Url.Page(
+                            "/Account/ConfirmEmail",
+                            pageHandler: null,
+                            values: new { area = "Identity", userId = userId, code = encodedCode, returnUrl = returnUrl },
+                            protocol: Request.Scheme);
+
+                        var emailTemplate = new StringBuilder(ConfigurationRepository.Get<string>("Membership", "Template: Account Verification Email"));
+                        var basicConfig = ConfigurationRepository.GetConfigurationEntryValuesByGroupName("Basic");
+                        var siteName = basicConfig.Value<string>("Name");
+                        var address = basicConfig.Value<string>("Address");
+                        var profile = UsersRepository.GetAccountProfileByUserId(Guid.Parse(userId));
+
+                        var emailSubject = "Confirm your email";
+                        emailTemplate.Replace("##SUBJECT##", emailSubject);
+                        emailTemplate.Replace("##ACCOUNTCOUNTRY##", profile.Country);
+                        emailTemplate.Replace("##ACCOUNTTIMEZONE##", profile.TimeZone);
+                        emailTemplate.Replace("##ACCOUNTLANGUAGE##", profile.Language);
+                        emailTemplate.Replace("##ACCOUNTEMAIL##", profile.EmailAddress);
+                        emailTemplate.Replace("##ACCOUNTNAME##", profile.AccountName);
+                        emailTemplate.Replace("##PERSONNAME##", $"{profile.FirstName} {profile.LastName}");
+                        emailTemplate.Replace("##CODE##", code);
+                        emailTemplate.Replace("##USERID##", userId);
+                        emailTemplate.Replace("##SITENAME##", siteName);
+                        emailTemplate.Replace("##SITEADDRESS##", address);
+                        emailTemplate.Replace("##CALLBACKURL##", HtmlEncoder.Default.Encode(callbackUrl ?? string.Empty));
+
+                        await _emailSender.SendEmailAsync(Input.Email, emailSubject, emailTemplate.ToString());
+
+                        return RedirectToPage("RegisterConfirmation", new { email = Input.Email, returnUrl = returnUrl });
+                    }
+                    else
+                    {
+                        await _signInManager.SignInAsync(user, isPersistent: false);
+                        return LocalRedirect(returnUrl);
+                    }
+                }
+                foreach (var error in result.Errors)
+                {
+                    ModelState.AddModelError(string.Empty, error.Description);
+                }
+            }
+
+            // If we got this far, something failed, redisplay form
+            return Page();
+        }
+
+        private IUserEmailStore<IdentityUser> GetEmailStore()
+        {
+            if (!_userManager.SupportsUserEmail)
+            {
+                throw new NotSupportedException("The default UI requires a user store with email support.");
+            }
+            return (IUserEmailStore<IdentityUser>)_userStore;
+        }
+    }
+}

ZelWiki/Areas/Identity/Pages/Account/RegisterConfirmation.cshtml

@@ -0,0 +1,15 @@
+@page
+@model RegisterConfirmationModel
+@{
+    var sessionState = ViewData["SessionState"] as ZelWiki.SessionState ?? throw new Exception("Wiki State Context cannot be null.");
+}
+
+<h3>
+    Register confirmation
+</h3>
+
+<p>
+    Please check your email to confirm your account.
+</p>
+
+

ZelWiki/Areas/Identity/Pages/Account/RegisterConfirmation.cshtml.cs

@@ -0,0 +1,36 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+#nullable disable
+
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using ZelWiki.Library.Interfaces;
+using ZelWiki.Models;
+
+namespace ZelWiki.Areas.Identity.Pages.Account
+{
+    [AllowAnonymous]
+    public class RegisterConfirmationModel : PageModelBase
+    {
+        private readonly UserManager<IdentityUser> _userManager;
+        private readonly IWikiEmailSender _emailSender;
+
+        public RegisterConfirmationModel(SignInManager<IdentityUser> signInManager, UserManager<IdentityUser> userManager, IWikiEmailSender emailSender)
+                        : base(signInManager)
+        {
+            _userManager = userManager;
+            _emailSender = emailSender;
+        }
+
+        public IActionResult OnGetAsync(string email, string returnUrl = null)
+        {
+            if (GlobalConfiguration.AllowSignup != true)
+            {
+                return Redirect($"{GlobalConfiguration.BasePath}/Identity/Account/RegistrationIsNotAllowed");
+            }
+
+            return Page();
+        }
+    }
+}

ZelWiki/Areas/Identity/Pages/Account/RegistrationIsNotAllowed.cshtml

@@ -0,0 +1,12 @@
+@page
+@model RegistrationIsNotAllowedModel
+@{
+    ViewData["Title"] = "";
+    var sessionState = ViewData["SessionState"] as ZelWiki.SessionState ?? throw new Exception("Wiki State Context cannot be null.");
+}
+
+<h3>
+    Registration is not allowed
+</h3>
+
+<p class="text-danger">Registration is not allowed.</p>

ZelWiki/Areas/Identity/Pages/Account/RegistrationIsNotAllowed.cshtml.cs

@@ -0,0 +1,17 @@
+using Microsoft.AspNetCore.Identity;
+
+namespace ZelWiki.Areas.Identity.Pages.Account
+{
+
+    public class RegistrationIsNotAllowedModel : PageModelBase
+    {
+
+        public void OnGet()
+        {
+        }
+        public RegistrationIsNotAllowedModel(SignInManager<IdentityUser> signInManager)
+                        : base(signInManager)
+        {
+        }
+    }
+}

ZelWiki/Areas/Identity/Pages/Account/ResendEmailConfirmation.cshtml

@@ -0,0 +1,30 @@
+@page
+@model ResendEmailConfirmationModel
+@{
+    var sessionState = ViewData["SessionState"] as ZelWiki.SessionState ?? throw new Exception("Wiki State Context cannot be null.");
+}
+
+<h3>
+    Resend email confirmation
+</h3>
+
+<p>Enter your email.</p>
+<hr />
+
+<div class="row">
+    <div class="col-md-4">
+        <form method="post">
+            <div asp-validation-summary="All" class="text-danger" role="alert"></div>
+            <div class="form-floating mb-3">
+                <input asp-for="Input.Email" class="form-control" aria-required="true" placeholder="name@example.com" />
+                <label asp-for="Input.Email" class="form-label"></label>
+                <span asp-validation-for="Input.Email" class="text-danger"></span>
+            </div>
+            <button type="submit" class="w-100 btn btn-lg btn-primary">Resend</button>
+        </form>
+    </div>
+</div>
+
+@section Scripts {
+    <partial name="_ValidationScriptsPartial" />
+}

ZelWiki/Areas/Identity/Pages/Account/ResendEmailConfirmation.cshtml.cs

@@ -0,0 +1,115 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+#nullable disable
+
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.WebUtilities;
+using System.ComponentModel.DataAnnotations;
+using System.Text;
+using System.Text.Encodings.Web;
+using ZelWiki.Library.Interfaces;
+using ZelWiki.Models;
+using ZelWiki.Repository;
+
+namespace ZelWiki.Areas.Identity.Pages.Account
+{
+    [AllowAnonymous]
+    public class ResendEmailConfirmationModel : PageModelBase
+    {
+        private readonly UserManager<IdentityUser> _userManager;
+        private readonly IWikiEmailSender _emailSender;
+
+        public ResendEmailConfirmationModel(SignInManager<IdentityUser> signInManager, UserManager<IdentityUser> userManager, IWikiEmailSender emailSender)
+                        : base(signInManager)
+        {
+            _userManager = userManager;
+            _emailSender = emailSender;
+        }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        [BindProperty]
+        public InputModel Input { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public class InputModel
+        {
+            /// <summary>
+            ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+            ///     directly from your code. This API may change or be removed in future releases.
+            /// </summary>
+            [Required]
+            [EmailAddress]
+            public string Email { get; set; }
+        }
+
+        public IActionResult OnGet()
+        {
+            if (GlobalConfiguration.AllowSignup != true)
+            {
+                return Redirect($"{GlobalConfiguration.BasePath}/Identity/Account/RegistrationIsNotAllowed");
+            }
+            return Page();
+        }
+
+        public async Task<IActionResult> OnPostAsync()
+        {
+            if (GlobalConfiguration.AllowSignup != true)
+            {
+                return Redirect($"{GlobalConfiguration.BasePath}/Identity/Account/RegistrationIsNotAllowed");
+            }
+            if (!ModelState.IsValid)
+            {
+                return Page();
+            }
+
+            var user = await _userManager.FindByEmailAsync(Input.Email);
+            if (user == null)
+            {
+                ModelState.AddModelError(string.Empty, "Verification email sent. Please check your email.");
+                return Page();
+            }
+
+            var userId = await _userManager.GetUserIdAsync(user);
+            var code = await _userManager.GenerateEmailConfirmationTokenAsync(user);
+            var encodedCode = WebEncoders.Base64UrlEncode(Encoding.UTF8.GetBytes(code));
+            var callbackUrl = Url.Page(
+                "/Account/ConfirmEmail",
+                pageHandler: null,
+                values: new { userId = userId, code = encodedCode },
+                protocol: Request.Scheme);
+
+            var emailTemplate = new StringBuilder(ConfigurationRepository.Get<string>("Membership", "Template: Account Verification Email"));
+            var basicConfig = ConfigurationRepository.GetConfigurationEntryValuesByGroupName("Basic");
+            var siteName = basicConfig.Value<string>("Name");
+            var address = basicConfig.Value<string>("Address");
+            var profile = UsersRepository.GetAccountProfileByUserId(Guid.Parse(userId));
+
+            var emailSubject = "Confirm your email";
+            emailTemplate.Replace("##SUBJECT##", emailSubject);
+            emailTemplate.Replace("##ACCOUNTCOUNTRY##", profile.Country);
+            emailTemplate.Replace("##ACCOUNTTIMEZONE##", profile.TimeZone);
+            emailTemplate.Replace("##ACCOUNTLANGUAGE##", profile.Language);
+            emailTemplate.Replace("##ACCOUNTEMAIL##", profile.EmailAddress);
+            emailTemplate.Replace("##ACCOUNTNAME##", profile.AccountName);
+            emailTemplate.Replace("##PERSONNAME##", $"{profile.FirstName} {profile.LastName}");
+            emailTemplate.Replace("##CODE##", code);
+            emailTemplate.Replace("##USERID##", userId);
+            emailTemplate.Replace("##SITENAME##", siteName);
+            emailTemplate.Replace("##SITEADDRESS##", address);
+            emailTemplate.Replace("##CALLBACKURL##", HtmlEncoder.Default.Encode(callbackUrl));
+
+            await _emailSender.SendEmailAsync(Input.Email, emailSubject, emailTemplate.ToString());
+
+            ModelState.AddModelError(string.Empty, "Verification email sent. Please check your email.");
+            return Page();
+        }
+    }
+}

ZelWiki/Areas/Identity/Pages/Account/ResetPassword.cshtml

@@ -0,0 +1,41 @@
+@page
+@model ResetPasswordModel
+@{
+    var sessionState = ViewData["SessionState"] as ZelWiki.SessionState ?? throw new Exception("Wiki State Context cannot be null.");
+}
+
+<h3>
+    Reset password
+</h3>
+
+<p>Reset your password.</p>
+<hr />
+
+<div class="row">
+    <div class="col-md-4">
+        <form method="post">
+            <div asp-validation-summary="ModelOnly" class="text-danger" role="alert"></div>
+            <input asp-for="Input.Code" type="hidden" />
+            <div class="form-floating mb-3">
+                <input asp-for="Input.Email" class="form-control" autocomplete="username" aria-required="true" placeholder="name@example.com" />
+                <label asp-for="Input.Email" class="form-label"></label>
+                <span asp-validation-for="Input.Email" class="text-danger"></span>
+            </div>
+            <div class="form-floating mb-3">
+                <input asp-for="Input.Password" class="form-control" autocomplete="new-password" aria-required="true" placeholder="Please enter your password." />
+                <label asp-for="Input.Password" class="form-label"></label>
+                <span asp-validation-for="Input.Password" class="text-danger"></span>
+            </div>
+            <div class="form-floating mb-3">
+                <input asp-for="Input.ConfirmPassword" class="form-control" autocomplete="new-password" aria-required="true" placeholder="Please confirm your password." />
+                <label asp-for="Input.ConfirmPassword" class="form-label"></label>
+                <span asp-validation-for="Input.ConfirmPassword" class="text-danger"></span>
+            </div>
+            <button type="submit" class="w-100 btn btn-lg btn-primary">Reset</button>
+        </form>
+    </div>
+</div>
+
+@section Scripts {
+    <partial name="_ValidationScriptsPartial" />
+}

ZelWiki/Areas/Identity/Pages/Account/ResetPassword.cshtml.cs

@@ -0,0 +1,115 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+#nullable disable
+
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.WebUtilities;
+using System.ComponentModel.DataAnnotations;
+using System.Text;
+using ZelWiki.Models;
+
+namespace ZelWiki.Areas.Identity.Pages.Account
+{
+    public class ResetPasswordModel : PageModelBase
+    {
+        private readonly UserManager<IdentityUser> _userManager;
+
+        public ResetPasswordModel(SignInManager<IdentityUser> signInManager, UserManager<IdentityUser> userManager)
+                        : base(signInManager)
+        {
+            _userManager = userManager;
+        }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        [BindProperty]
+        public InputModel Input { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public class InputModel
+        {
+            /// <summary>
+            ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+            ///     directly from your code. This API may change or be removed in future releases.
+            /// </summary>
+            [Required]
+            [EmailAddress]
+            public string Email { get; set; }
+
+            /// <summary>
+            ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+            ///     directly from your code. This API may change or be removed in future releases.
+            /// </summary>
+            [Required]
+            [StringLength(100, ErrorMessage = "The {0} must be at least {2} and at max {1} characters long.", MinimumLength = 6)]
+            [DataType(DataType.Password)]
+            public string Password { get; set; }
+
+            /// <summary>
+            ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+            ///     directly from your code. This API may change or be removed in future releases.
+            /// </summary>
+            [DataType(DataType.Password)]
+            [Display(Name = "Confirm password")]
+            [Compare("Password", ErrorMessage = "The password and confirmation password do not match.")]
+            public string ConfirmPassword { get; set; }
+
+            /// <summary>
+            ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+            ///     directly from your code. This API may change or be removed in future releases.
+            /// </summary>
+            [Required]
+            public string Code { get; set; }
+
+        }
+
+        public IActionResult OnGet(string code = null)
+        {
+            if (code == null)
+            {
+                return BadRequest("A code must be supplied for password reset.");
+            }
+            else
+            {
+                Input = new InputModel
+                {
+                    Code = Encoding.UTF8.GetString(WebEncoders.Base64UrlDecode(code))
+                };
+                return Page();
+            }
+        }
+
+        public async Task<IActionResult> OnPostAsync()
+        {
+            if (!ModelState.IsValid)
+            {
+                return Page();
+            }
+
+            var user = await _userManager.FindByEmailAsync(Input.Email);
+            if (user == null)
+            {
+                // Don't reveal that the user does not exist
+                return RedirectToPage($"{GlobalConfiguration.BasePath}/Identity/ResetPasswordConfirmation");
+            }
+
+            var result = await _userManager.ResetPasswordAsync(user, Input.Code, Input.Password);
+            if (result.Succeeded)
+            {
+                return RedirectToPage($"{GlobalConfiguration.BasePath}/Identity/ResetPasswordConfirmation");
+            }
+
+            foreach (var error in result.Errors)
+            {
+                ModelState.AddModelError(string.Empty, error.Description);
+            }
+            return Page();
+        }
+    }
+}

ZelWiki/Areas/Identity/Pages/Account/ResetPasswordConfirmation.cshtml

@@ -0,0 +1,13 @@
+@page
+@model ResetPasswordConfirmationModel
+@{
+    var sessionState = ViewData["SessionState"] as ZelWiki.SessionState ?? throw new Exception("Wiki State Context cannot be null.");
+}
+
+<h3>
+    Reset password confirmation
+</h3>
+
+<p>
+    Your password has been reset. Please <a asp-page="./Login">click here to log in</a>.
+</p>

ZelWiki/Areas/Identity/Pages/Account/ResetPasswordConfirmation.cshtml.cs

@@ -0,0 +1,32 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+#nullable disable
+
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Identity;
+
+namespace ZelWiki.Areas.Identity.Pages.Account
+{
+    /// <summary>
+    ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+    ///     directly from your code. This API may change or be removed in future releases.
+    /// </summary>
+    [AllowAnonymous]
+    public class ResetPasswordConfirmationModel : PageModelBase
+    {
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public void OnGet()
+        {
+        }
+
+        public ResetPasswordConfirmationModel(SignInManager<IdentityUser> signInManager)
+
+                        : base(signInManager)
+        {
+
+        }
+    }
+}

ZelWiki/Areas/Identity/Pages/Account/_StatusMessage.cshtml

@@ -0,0 +1,10 @@
+@model string
+
+@if (!String.IsNullOrEmpty(Model))
+{
+    var statusMessageClass = Model.StartsWith("Error") ? "danger" : "success";
+    <div class="alert alert-@statusMessageClass alert-dismissible" role="alert">
+        <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
+        @Model
+    </div>
+}

ZelWiki/Areas/Identity/Pages/Account/_ViewImports.cshtml

@@ -0,0 +1 @@
+@using ZelWiki.Areas.Identity.Pages.Account

ZelWiki/Areas/Identity/Pages/Error.cshtml

@@ -0,0 +1,24 @@
+@page
+@model ErrorModel
+@{
+    ViewData["Title"] = "Error";
+    var sessionState = ViewData["SessionState"] as ZelWiki.SessionState ?? throw new Exception("Wiki State Context cannot be null.");
+}
+
+<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 <strong>Development</strong> environment will display more detailed information about the error that occurred.
+</p>
+<p>
+    <strong>Development environment should not be enabled in deployed applications</strong>, as it can result in sensitive information from exceptions being displayed to end users. For local debugging, development environment can be enabled by setting the <strong>ASPNETCORE_ENVIRONMENT</strong> environment variable to <strong>Development</strong>, and restarting the application.
+</p>

ZelWiki/Areas/Identity/Pages/Error.cshtml.cs

@@ -0,0 +1,47 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+#nullable disable
+
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using System.Diagnostics;
+
+namespace ZelWiki.Areas.Identity.Pages
+{
+    /// <summary>
+    ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+    ///     directly from your code. This API may change or be removed in future releases.
+    /// </summary>
+    [AllowAnonymous]
+    [ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
+    public class ErrorModel : PageModelBase
+    {
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public string RequestId { get; set; }
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public bool ShowRequestId => !string.IsNullOrEmpty(RequestId);
+
+        /// <summary>
+        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
+        ///     directly from your code. This API may change or be removed in future releases.
+        /// </summary>
+        public void OnGet()
+        {
+            RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier;
+        }
+
+        public ErrorModel(SignInManager<IdentityUser> signInManager)
+            : base(signInManager)
+        {
+
+        }
+    }
+}

ZelWiki/Areas/Identity/Pages/_ValidationScriptsPartial.cshtml

@@ -0,0 +1,18 @@
+<environment include="Development">
+    <script src="~/Identity/lib/jquery-validation/dist/jquery.validate.js"></script>
+    <script src="~/Identity/lib/jquery-validation-unobtrusive/jquery.validate.unobtrusive.js"></script>
+</environment>
+<environment exclude="Development">
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-validate/1.17.0/jquery.validate.min.js"
+            asp-fallback-src="~/Identity/lib/jquery-validation/dist/jquery.validate.min.js"
+            asp-fallback-test="window.jQuery && window.jQuery.validator"
+            crossorigin="anonymous"
+            integrity="sha384-rZfj/ogBloos6wzLGpPkkOr/gpkBNLZ6b6yLy4o+ok+t/SAKlL5mvXLr0OXNi1Hp">
+    </script>
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-validation-unobtrusive/3.2.11/jquery.validate.unobtrusive.min.js"
+            asp-fallback-src="~/Identity/lib/jquery-validation-unobtrusive/jquery.validate.unobtrusive.min.js"
+            asp-fallback-test="window.jQuery && window.jQuery.validator && window.jQuery.validator.unobtrusive"
+            crossorigin="anonymous"
+            integrity="sha384-R3vNCHsZ+A2Lo3d5A6XNP7fdQkeswQWTIPfiYwSpEP3YV079R+93YzTeZRah7f/F">
+    </script>
+</environment>

ZelWiki/Areas/Identity/Pages/_ViewImports.cshtml

@@ -0,0 +1,4 @@
+@using Microsoft.AspNetCore.Identity
+@using ZelWiki.Areas.Identity
+@using ZelWiki.Areas.Identity.Pages
+@addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers

ZelWiki/Areas/Identity/Pages/_ViewStart.cshtml

@@ -0,0 +1,4 @@
+@{
+    Layout = "/Views/Shared/_Layout.cshtml";
+    var sessionState = ViewData["SessionState"] as ZelWiki.SessionState ?? throw new Exception("Wiki State Context cannot be null.");
+}

ZelWiki/Controllers/AccountController.cs

@@ -0,0 +1,116 @@
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using NTDLS.Helpers;
+using System.Security.Claims;
+using ZelWiki.Models;
+using ZelWiki.Models.ViewModels;
+using ZelWiki.Repository;
+
+
+namespace ZelWiki.Controllers
+{
+    [Area("Identity")]
+    [Route("Identity/Account")]
+    public class AccountController : WikiControllerBase
+    {
+        private readonly IUserStore<IdentityUser> _userStore;
+        private readonly IUserEmailStore<IdentityUser> _emailStore;
+
+        public AccountController(SignInManager<IdentityUser> signInManager, UserManager<IdentityUser> userManager, IUserStore<IdentityUser> userStore)
+            : base(signInManager, userManager)
+        {
+            _userStore = userStore;
+            _emailStore = (IUserEmailStore<IdentityUser>)_userStore;
+        }
+
+        [HttpGet("ExternalLogin")]
+        [ValidateAntiForgeryToken]
+        public IActionResult ExternalLoginHttpGet(string provider, string? returnUrl = null)
+        {
+            var redirectUrl = Url.Action(nameof(ExternalLoginCallback), "Account", new { area = "Identity", ReturnUrl = returnUrl });
+            var properties = SignInManager.ConfigureExternalAuthenticationProperties(provider, redirectUrl);
+            return Challenge(properties, provider);
+        }
+
+        [HttpPost("ExternalLogin")]
+        [ValidateAntiForgeryToken]
+        public IActionResult ExternalLoginHttpPost(string provider, string? returnUrl = null)
+        {
+            var redirectUrl = Url.Action(nameof(ExternalLoginCallback), "Account", new { area = "Identity", ReturnUrl = returnUrl });
+            var properties = SignInManager.ConfigureExternalAuthenticationProperties(provider, redirectUrl);
+            return Challenge(properties, provider);
+        }
+
+        public async Task<IActionResult> ExternalLoginCallback(string? returnUrl = null, string? remoteError = null)
+        {
+            //We use this model to display any errors that occur.
+            var model = new ExternalLoginCallbackViewModel();
+
+            returnUrl ??= Url.Content("~/");
+            if (remoteError != null)
+            {
+                return NotifyOfError($"外部提供程序出错: {remoteError}");
+            }
+
+            var info = await SignInManager.GetExternalLoginInfoAsync();
+            if (info == null)
+            {
+                return NotifyOfError($"无法从外部提供程序获取信息");
+            }
+
+            var user = await UserManager.FindByLoginAsync(info.LoginProvider, info.ProviderKey);
+            if (user != null)
+            {
+                // User exists, sign them in:
+                await SignInManager.SignInAsync(user, isPersistent: false);
+
+                if (UsersRepository.TryGetBasicProfileByUserId(Guid.Parse(user.Id), out _) == false)
+                {
+                    if (GlobalConfiguration.AllowSignup != true)
+                    {
+                        return Redirect($"{GlobalConfiguration.BasePath}/Identity/Account/RegistrationIsNotAllowed");
+                    }
+
+                    //User exits but does not have a profile.
+                    //This means that the user has authenticated externally, but has yet to complete the signup process.
+                    return RedirectToPage($"{GlobalConfiguration.BasePath}/Account/ExternalLoginSupplemental", new { ReturnUrl = returnUrl });
+                }
+
+                return LocalRedirect(returnUrl);
+            }
+            else
+            {
+                // If the user does not exist, check by email
+                var email = info.Principal.FindFirstValue(ClaimTypes.Email).EnsureNotNull();
+                if (string.IsNullOrEmpty(email))
+                {
+                    return NotifyOfError($"电子邮件地址不是由外部提供商提供的.");
+                }
+
+                user = await UserManager.FindByEmailAsync(email);
+                if (user != null)
+                {
+                    // User with this email exists but not linked with this external login, link them:
+                    var result = await UserManager.AddLoginAsync(user, info);
+                    if (!result.Succeeded)
+                    {
+                        return NotifyOfError(string.Join("<br />\r\n", result.Errors.Select(o => o.Description)));
+                    }
+                    await SignInManager.SignInAsync(user, isPersistent: false);
+                    return LocalRedirect(returnUrl);
+                }
+                else
+                {
+                    // If user with this email does not exist, then we need to create the user and profile.
+
+                    if (GlobalConfiguration.AllowSignup != true)
+                    {
+                        return Redirect($"{GlobalConfiguration.BasePath}/Identity/Account/RegistrationIsNotAllowed");
+                    }
+
+                    return RedirectToPage($"{GlobalConfiguration.BasePath}/Account/ExternalLoginSupplemental", new { ReturnUrl = returnUrl });
+                }
+            }
+        }
+    }
+}

ZelWiki/Controllers/FileController.cs

@@ -0,0 +1,481 @@
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using NTDLS.Helpers;
+using SixLabors.ImageSharp;
+using System.Web;
+using ZelWiki.Caching;
+using ZelWiki.Library;
+using ZelWiki.Models;
+using ZelWiki.Models.DataModels;
+using ZelWiki.Models.ViewModels.File;
+using ZelWiki.Repository;
+using static ZelWiki.Library.Images;
+
+namespace ZelWiki.Controllers
+{
+    [Route("File")]
+    public class FileController(SignInManager<IdentityUser> signInManager, UserManager<IdentityUser> userManager)
+        : WikiControllerBase(signInManager, userManager)
+    {
+        /// <summary>
+        /// 获取附加到页面的图像
+        /// </summary>
+        /// <param name="givenPageNavigation">The navigation link of the page.</param>
+        /// <param name="givenFileNavigation">The navigation link of the file.</param>
+        /// <param name="fileRevision">The revision of the the file (NOT THE PAGE REVISION).</param>
+        /// <returns></returns>
+        [HttpGet("Image/{givenPageNavigation}/{givenFileNavigation}/{fileRevision:int?}")]
+        public ActionResult Image(string givenPageNavigation, string givenFileNavigation, int? fileRevision = null)
+        {
+            var pageNavigation = new NamespaceNavigation(givenPageNavigation);
+            var fileNavigation = new NamespaceNavigation(givenFileNavigation);
+
+            int givenScale = GetQueryValue("Scale", 100);
+
+            var cacheKey = WikiCacheKeyFunction.Build(WikiCache.Category.Page, [givenPageNavigation, givenFileNavigation, fileRevision, givenScale]);
+            if (WikiCache.TryGet<ImageCacheItem>(cacheKey, out var cached))
+            {
+                return File(cached.Bytes, cached.ContentType);
+            }
+
+            var file = PageFileRepository.GetPageFileAttachmentByPageNavigationFileRevisionAndFileNavigation(pageNavigation.Canonical, fileNavigation.Canonical, fileRevision);
+            if (file != null)
+            {
+                if (file.ContentType == "image/x-icon")
+                {
+                    //We do not handle the resizing of icon file. Maybe later....
+                    return File(file.Data, file.ContentType);
+                }
+
+                var img = SixLabors.ImageSharp.Image.Load(new MemoryStream(file.Data));
+
+                if (givenScale > 500)
+                {
+                    givenScale = 500;
+                }
+                if (givenScale != 100)
+                {
+                    int width = (int)(img.Width * (givenScale / 100.0));
+                    int height = (int)(img.Height * (givenScale / 100.0));
+
+                    //Adjusting by a ratio (and especially after applying additional scaling) may have caused one
+                    //  dimension to become very small (or even negative). So here we will check the height and width
+                    //  to ensure they are both at least n pixels and adjust both dimensions.
+                    if (height < 16)
+                    {
+                        int difference = 16 - height;
+                        height += difference;
+                        width += difference;
+                    }
+                    if (width < 16)
+                    {
+                        int difference = 16 - width;
+                        height += difference;
+                        width += difference;
+                    }
+
+                    if (file.ContentType.Equals("image/gif", StringComparison.InvariantCultureIgnoreCase))
+                    {
+                        var resized = ResizeGifImage(file.Data, width, height);
+                        return File(resized, "image/gif");
+                    }
+                    else
+                    {
+                        using var image = ResizeImage(img, width, height);
+                        using var ms = new MemoryStream();
+                        file.ContentType = BestEffortConvertImage(image, ms, file.ContentType);
+                        var cacheItem = new ImageCacheItem(ms.ToArray(), file.ContentType);
+                        WikiCache.Put(cacheKey, cacheItem);
+                        return File(cacheItem.Bytes, cacheItem.ContentType);
+                    }
+                }
+                else
+                {
+                    return File(file.Data, file.ContentType);
+                }
+            }
+            else
+            {
+                return NotFound($"[{fileNavigation}] 无法在页面 [{pageNavigation}] 中找到.");
+            }
+        }
+
+        /// <summary>
+        /// Gets an image from the database, converts it to a PNG with optional scaling and returns it to the client.
+        /// </summary>
+        /// <param name="givenPageNavigation">The navigation link of the page.</param>
+        /// <param name="givenFileNavigation">The navigation link of the file.</param>
+        /// <param name="fileRevision">The revision of the the FILE (NOT THE PAGE REVISION)</param>
+        /// <returns></returns>
+        [AllowAnonymous]
+        [HttpGet("Png/{givenPageNavigation}/{givenFileNavigation}/{fileRevision:int?}")]
+        public ActionResult Png(string givenPageNavigation, string givenFileNavigation, int? fileRevision = null)
+        {
+            SessionState.RequireViewPermission();
+
+            var pageNavigation = new NamespaceNavigation(givenPageNavigation);
+            var fileNavigation = new NamespaceNavigation(givenFileNavigation);
+
+            int givenScale = GetQueryValue("Scale", 100);
+
+            var cacheKey = WikiCacheKeyFunction.Build(WikiCache.Category.Page, [givenPageNavigation, givenFileNavigation, fileRevision, givenScale]);
+            if (WikiCache.TryGet<ImageCacheItem>(cacheKey, out var cached))
+            {
+                return File(cached.Bytes, cached.ContentType);
+            }
+
+            var file = PageFileRepository.GetPageFileAttachmentByPageNavigationFileRevisionAndFileNavigation(pageNavigation.Canonical, fileNavigation.Canonical, fileRevision);
+            if (file != null)
+            {
+                var img = SixLabors.ImageSharp.Image.Load(new MemoryStream(Utility.Decompress(file.Data)));
+
+                if (givenScale > 500)
+                {
+                    givenScale = 500;
+                }
+
+                if (givenScale != 100)
+                {
+                    int width = (int)(img.Width * (givenScale / 100.0));
+                    int height = (int)(img.Height * (givenScale / 100.0));
+
+                    //Adjusting by a ratio (and especially after applying additional scaling) may have caused one
+                    //  dimension to become very small (or even negative). So here we will check the height and width
+                    //  to ensure they are both at least n pixels and adjust both dimensions.
+                    if (height < 16)
+                    {
+                        int difference = 16 - height;
+                        height += difference;
+                        width += difference;
+                    }
+                    if (width < 16)
+                    {
+                        int difference = 16 - width;
+                        height += difference;
+                        width += difference;
+                    }
+
+                    using var image = Images.ResizeImage(img, width, height);
+                    using var ms = new MemoryStream();
+                    image.SaveAsPng(ms);
+
+                    var cacheItem = new ImageCacheItem(ms.ToArray(), "image/png");
+                    WikiCache.Put(cacheKey, cacheItem);
+                    return File(cacheItem.Bytes, cacheItem.ContentType);
+                }
+                else
+                {
+                    using var ms = new MemoryStream();
+                    img.SaveAsPng(ms);
+
+                    var cacheItem = new ImageCacheItem(ms.ToArray(), "image/png");
+                    WikiCache.Put(cacheKey, cacheItem);
+                    return File(cacheItem.Bytes, cacheItem.ContentType);
+                }
+            }
+            else
+            {
+                return NotFound($"[{fileNavigation}] 无法在页面 [{pageNavigation}] 中找到.");
+            }
+        }
+
+        /// <summary>
+        /// Gets a file from the database and returns it to the client. This works even
+        /// when the file or file revision is not even attached to the page anymore.
+        /// <param name="givenPageNavigation">The navigation link of the page.</param>
+        /// <param name="givenFileNavigation">The navigation link of the file.</param>
+        /// <param name="fileRevision">The revision of the the FILE (NOT THE PAGE REVISION),</param>
+        /// </summary>
+        [AllowAnonymous]
+        [HttpGet("Binary/{givenPageNavigation}/{givenFileNavigation}/{fileRevision:int?}")]
+        public ActionResult Binary(string givenPageNavigation, string givenFileNavigation, int? fileRevision = null)
+        {
+            SessionState.RequireViewPermission();
+
+            var pageNavigation = new NamespaceNavigation(givenPageNavigation);
+            var fileNavigation = new NamespaceNavigation(givenFileNavigation);
+
+            var file = PageFileRepository.GetPageFileAttachmentByPageNavigationFileRevisionAndFileNavigation(pageNavigation.Canonical, fileNavigation.Canonical, fileRevision);
+
+            if (file != null)
+            {
+                return File(file.Data.ToArray(), file.ContentType);
+            }
+            else
+            {
+                HttpContext.Response.StatusCode = 404;
+                return NotFound($"[{fileNavigation}] 无法在页面 [ {pageNavigation} ] 中找到.");
+            }
+        }
+
+        /// <summary>
+        /// Populate the upload page. Shows the attachments.
+        /// </summary>
+        [Authorize]
+        [HttpGet("Revisions/{givenPageNavigation}/{givenFileNavigation}")]
+        public ActionResult Revisions(string givenPageNavigation, string givenFileNavigation)
+        {
+            SessionState.RequireViewPermission();
+
+            var pageNavigation = new NamespaceNavigation(givenPageNavigation);
+            var fileNavigation = new NamespaceNavigation(givenFileNavigation);
+
+            var model = new PageFileRevisionsViewModel()
+            {
+                PageNavigation = pageNavigation.Canonical,
+                FileNavigation = fileNavigation.Canonical,
+                Revisions = PageFileRepository.GetPageFileAttachmentRevisionsByPageAndFileNavigationPaged
+                    (pageNavigation.Canonical, fileNavigation.Canonical, GetQueryValue("page", 1))
+            };
+
+            model.PaginationPageCount = (model.Revisions.FirstOrDefault()?.PaginationPageCount ?? 0);
+
+            return View(model);
+        }
+
+        /// <summary>
+        /// Populate the upload page. Shows the attachments.
+        /// </summary>
+        [Authorize]
+        [HttpGet("PageAttachments/{givenPageNavigation}")]
+        public ActionResult PageAttachments(string givenPageNavigation)
+        {
+            SessionState.RequireCreatePermission();
+
+            var pageNavigation = new NamespaceNavigation(givenPageNavigation);
+
+            var page = PageRepository.GetPageRevisionByNavigation(pageNavigation);
+            if (page != null)
+            {
+                var pageFiles = PageFileRepository.GetPageFilesInfoByPageId(page.Id);
+
+                return View(new FileAttachmentViewModel
+                {
+                    PageNavigation = page.Navigation,
+                    PageRevision = page.Revision,
+                    Files = pageFiles
+                });
+            }
+
+            return View(new FileAttachmentViewModel
+            {
+                Files = new()
+            });
+        }
+
+        /// <summary>
+        /// Uploads a file by drag drop.
+        /// </summary>
+        [Authorize]
+        [HttpPost("UploadDragDrop/{givenPageNavigation}")]
+        public IActionResult UploadDragDrop(string givenPageNavigation, List<IFormFile> postedFiles)
+        {
+            SessionState.RequireCreatePermission();
+
+            try
+            {
+                var pageNavigation = new NamespaceNavigation(givenPageNavigation);
+
+                var page = PageRepository.GetPageInfoByNavigation(pageNavigation.Canonical).EnsureNotNull();
+
+                foreach (IFormFile file in postedFiles)
+                {
+                    if (file != null)
+                    {
+                        var fileSize = file.Length;
+                        if (fileSize > 0)
+                        {
+                            if (fileSize > GlobalConfiguration.MaxAttachmentFileSize)
+                            {
+                                return Json(new { message = $"无法保存文件: [{file.FileName}], 文件过大." });
+                            }
+
+                            var fileName = HttpUtility.UrlDecode(file.FileName);
+
+                            PageFileRepository.UpsertPageFile(new PageFileAttachment()
+                            {
+                                Data = Utility.ConvertHttpFileToBytes(file),
+                                CreatedDate = DateTime.UtcNow,
+                                PageId = page.Id,
+                                Name = fileName,
+                                FileNavigation = Navigation.Clean(fileName),
+                                Size = fileSize,
+                                ContentType = Utility.GetMimeType(fileName)
+                            }, (SessionState.Profile?.UserId).EnsureNotNullOrEmpty());
+                        }
+                    }
+                }
+                return Json(new { success = true, message = $"{postedFiles.Count:n0} file{(postedFiles.Count == 0 || postedFiles.Count > 1 ? "s" : string.Empty)}." });
+            }
+            catch (Exception ex)
+            {
+                ExceptionRepository.InsertException(ex, "文件上传失败.");
+                return StatusCode(500, new { success = false, message = $"Error: {ex.Message}" });
+            }
+        }
+
+        /// <summary>
+        /// Uploads a file by manually selecting it for upload.
+        /// </summary>
+        /// <param name="postData"></param>
+        /// <returns></returns>
+        [Authorize]
+        [HttpPost("ManualUpload/{givenPageNavigation}")]
+        public IActionResult ManualUpload(string givenPageNavigation, IFormFile fileData)
+        {
+            SessionState.RequireCreatePermission();
+
+            var pageNavigation = new NamespaceNavigation(givenPageNavigation);
+
+            var page = PageRepository.GetPageInfoByNavigation(pageNavigation.Canonical).EnsureNotNull();
+
+            if (fileData != null)
+            {
+                var fileSize = fileData.Length;
+                if (fileSize > 0)
+                {
+                    if (fileSize > GlobalConfiguration.MaxAttachmentFileSize)
+                    {
+                        return Content("附件无法保存, 文件过大");
+                    }
+
+                    var fileName = HttpUtility.UrlDecode(fileData.FileName);
+
+                    PageFileRepository.UpsertPageFile(new PageFileAttachment()
+                    {
+                        Data = Utility.ConvertHttpFileToBytes(fileData),
+                        CreatedDate = DateTime.UtcNow,
+                        PageId = page.Id,
+                        Name = fileName,
+                        FileNavigation = Navigation.Clean(fileName),
+                        Size = fileSize,
+                        ContentType = Utility.GetMimeType(fileName)
+                    }, (SessionState.Profile?.UserId).EnsureNotNullOrEmpty());
+
+                    return Content("成功");
+                }
+            }
+
+            return Content("失败");
+        }
+
+        /// <summary>
+        /// Allows a user to delete a page attachment from a page.
+        /// </summary>
+        /// <param name="navigation"></param>
+        /// <returns></returns>
+        [HttpPost("Detach/{givenPageNavigation}/{givenFileNavigation}/{pageRevision}")]
+        public ActionResult Detach(string givenPageNavigation, string givenFileNavigation, int pageRevision)
+        {
+            SessionState.RequireDeletePermission();
+
+            PageFileRepository.DetachPageRevisionAttachment(
+                new NamespaceNavigation(givenPageNavigation).Canonical,
+                new NamespaceNavigation(givenFileNavigation).Canonical, pageRevision);
+
+            return Content("Success");
+        }
+
+
+        /// <summary>
+        /// Gets a file from the database, converts it to a PNG with optional scaling and returns it to the client.
+        /// </summary>
+        /// <param name="navigation"></param>
+        /// <returns></returns>
+        [AllowAnonymous]
+        [HttpGet("Emoji/{givenPageNavigation}")]
+        public ActionResult Emoji(string givenPageNavigation)
+        {
+            SessionState.RequireViewPermission();
+
+            var pageNavigation = Navigation.Clean(givenPageNavigation);
+
+            if (string.IsNullOrEmpty(pageNavigation) == false)
+            {
+                string scale = GetQueryValue("Scale", "100");
+
+                string shortcut = $"%%{pageNavigation.ToLower()}%%";
+                var emoji = GlobalConfiguration.Emojis.Where(o => o.Shortcut == shortcut).FirstOrDefault();
+                if (emoji != null)
+                {
+                    //Do we have this scale cached already?
+                    var scaledImageCacheKey = WikiCacheKey.Build(WikiCache.Category.Emoji, [shortcut, scale]);
+                    if (WikiCache.TryGet<ImageCacheItem>(scaledImageCacheKey, out var cachedEmoji))
+                    {
+                        return File(cachedEmoji.Bytes, cachedEmoji.ContentType);
+                    }
+
+                    var imageCacheKey = WikiCacheKey.Build(WikiCache.Category.Emoji, [shortcut]);
+                    emoji.ImageData = WikiCache.Get<byte[]>(imageCacheKey);
+                    if (emoji.ImageData == null)
+                    {
+                        //We don't get the bytes by default, that would be a lot of RAM for all the thousands of images.
+                        emoji.ImageData = EmojiRepository.GetEmojiByName(emoji.Name)?.ImageData;
+
+                        if (emoji.ImageData == null)
+                        {
+                            return NotFound($"Emoji {pageNavigation} 无法找到");
+                        }
+
+                        WikiCache.Put(imageCacheKey, emoji.ImageData);
+                    }
+
+                    if (emoji.ImageData != null)
+                    {
+                        var decompressedImageBytes = Utility.Decompress(emoji.ImageData);
+
+                        var img = SixLabors.ImageSharp.Image.Load(new MemoryStream(decompressedImageBytes));
+
+                        int customScalePercent = int.Parse(scale);
+                        if (customScalePercent > 500)
+                        {
+                            customScalePercent = 500;
+                        }
+
+                        var (Width, Height) = Utility.ScaleToMaxOf(img.Width, img.Height, GlobalConfiguration.DefaultEmojiHeight);
+
+                        //Adjust to any specified scaling.
+                        Height = (int)(Height * (customScalePercent / 100.0));
+                        Width = (int)(Width * (customScalePercent / 100.0));
+
+                        //Adjusting by a ratio (and especially after applying additional scaling) may have caused one
+                        //  dimension to become very small (or even negative). So here we will check the height and width
+                        //  to ensure they are both at least n pixels and adjust both dimensions.
+                        if (Height < 16)
+                        {
+                            Height += 16 - Height;
+                            Width += 16 - Height;
+                        }
+                        if (Width < 16)
+                        {
+                            Height += 16 - Width;
+                            Width += 16 - Width;
+                        }
+
+                        if (emoji.MimeType?.ToLower() == "image/gif")
+                        {
+                            var resized = ResizeGifImage(decompressedImageBytes, Width, Height);
+                            var itemCache = new ImageCacheItem(resized, "image/gif");
+                            WikiCache.Put(scaledImageCacheKey, itemCache);
+                            return File(itemCache.Bytes, itemCache.ContentType);
+                        }
+                        else
+                        {
+                            using var image = Images.ResizeImage(img, Width, Height);
+                            using var ms = new MemoryStream();
+                            image.SaveAsPng(ms);
+
+                            var itemCache = new ImageCacheItem(ms.ToArray(), "image/png");
+                            WikiCache.Put(scaledImageCacheKey, itemCache);
+
+                            return File(itemCache.Bytes, itemCache.ContentType);
+                        }
+                    }
+                }
+            }
+
+            return NotFound($"Emoji {pageNavigation} 无法找到");
+        }
+    }
+}

ZelWiki/Controllers/PageController.cs

@@ -0,0 +1,839 @@
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using NTDLS.Helpers;
+using SixLabors.ImageSharp;
+using System.Text;
+using ZelWiki.Caching;
+using ZelWiki.Engine;
+using ZelWiki.Engine.Implementation.Utility;
+using ZelWiki.Engine.Library.Interfaces;
+using ZelWiki.Library;
+using ZelWiki.Models;
+using ZelWiki.Models.DataModels;
+using ZelWiki.Models.ViewModels.Page;
+using ZelWiki.Repository;
+using static ZelWiki.Library.Constants;
+using static ZelWiki.Library.Images;
+
+namespace ZelWiki.Controllers
+{
+    [Route("")]
+    public class PageController(IZelEngine zelEngine, SignInManager<IdentityUser> signInManager, UserManager<IdentityUser> userManager)
+        : WikiControllerBase(signInManager, userManager)
+    {
+        [AllowAnonymous]
+        [Route("/robots.txt")]
+        public ContentResult RobotsTxt()
+        {
+            var sb = new StringBuilder();
+            sb.AppendLine("User-agent: *")
+                .AppendLine("Allow: /");
+
+            return Content(sb.ToString(), "text/plain", Encoding.UTF8);
+        }
+
+        #region Display.
+
+        /// <summary>
+        /// Default controller for root requests. e.g. http://127.0.0.1/
+        /// </summary>
+        /// <returns></returns>
+        [HttpGet]
+        public IActionResult Display()
+            => Display("home", null);
+
+
+        [HttpGet("{givenCanonical}/{pageRevision:int?}")]
+        public IActionResult Display(string givenCanonical, int? pageRevision)
+        {
+            SessionState.RequireViewPermission();
+
+            var model = new PageDisplayViewModel();
+            var navigation = new NamespaceNavigation(givenCanonical);
+
+            var page = PageRepository.GetPageRevisionByNavigation(navigation.Canonical, pageRevision);
+            if (page != null)
+            {
+                var instructions = PageRepository.GetPageProcessingInstructionsByPageId(page.Id);
+                model.Revision = page.Revision;
+                model.MostCurrentRevision = page.MostCurrentRevision;
+                model.Name = page.Name;
+                model.Namespace = page.Namespace;
+                model.Navigation = page.Navigation;
+                model.HideFooterComments = instructions.Contains(WikiInstruction.HideFooterComments);
+                model.HideFooterLastModified = instructions.Contains(WikiInstruction.HideFooterLastModified);
+                model.ModifiedByUserName = page.ModifiedByUserName;
+                model.ModifiedDate = SessionState.LocalizeDateTime(page.ModifiedDate);
+
+                SessionState.SetPageId(page.Id, pageRevision);
+
+                if (GlobalConfiguration.PageCacheSeconds > 0)
+                {
+                    string queryKey = string.Empty;
+                    foreach (var query in Request.Query)
+                    {
+                        queryKey += $"{query.Key}:{query.Value}";
+                    }
+
+                    var cacheKey = WikiCacheKeyFunction.Build(WikiCache.Category.Page, [page.Navigation, page.Revision, queryKey]);
+                    if (WikiCache.TryGet<PageCache>(cacheKey, out var cached))
+                    {
+                        model.Body = cached.Body;
+                        SessionState.PageTitle = cached.PageTitle;
+                        WikiCache.Put(cacheKey, cached); //Update the cache expiration.
+                    }
+                    else
+                    {
+                        var state = zelEngine.Transform(SessionState, page, pageRevision);
+                        SessionState.PageTitle = state.PageTitle;
+
+                        model.Body = state.HtmlResult;
+                        if (state.ProcessingInstructions.Contains(WikiInstruction.NoCache) == false)
+                        {
+                            var toBeCached = new PageCache(state.HtmlResult)
+                            {
+                                PageTitle = state.PageTitle
+                            };
+
+                            WikiCache.Put(cacheKey, toBeCached); //This is cleared with the call to Cache.ClearCategory($"Page:{page.Navigation}");
+                        }
+                    }
+                }
+                else
+                {
+                    var state = zelEngine.Transform(SessionState, page, pageRevision);
+
+                    model.Body = state.HtmlResult;
+                }
+
+                if (GlobalConfiguration.EnablePageComments && GlobalConfiguration.ShowCommentsOnPageFooter && model.HideFooterComments == false)
+                {
+                    var comments = PageRepository.GetPageCommentsPaged(navigation.Canonical, 1);
+
+                    foreach (var comment in comments)
+                    {
+                        model.Comments.Add(new PageComment
+                        {
+                            PaginationPageCount = comment.PaginationPageCount,
+                            UserNavigation = comment.UserNavigation,
+                            Id = comment.Id,
+                            UserName = comment.UserName,
+                            UserId = comment.UserId,
+                            Body = WikifierLite.Process(comment.Body),
+                            CreatedDate = SessionState.LocalizeDateTime(comment.CreatedDate)
+                        });
+                    }
+                }
+            }
+            else if (pageRevision != null)
+            {
+                var notExistPageName = ConfigurationRepository.Get<string>("Customization", "Revision Does Not Exists Page");
+                string notExistPageNavigation = NamespaceNavigation.CleanAndValidate(notExistPageName);
+                var notExistsPage = PageRepository.GetPageRevisionByNavigation(notExistPageNavigation).EnsureNotNull();
+
+                SessionState.SetPageId(null, pageRevision);
+
+                var state = zelEngine.Transform(SessionState, notExistsPage);
+
+                SessionState.Page.Name = notExistsPage.Name;
+                model.Body = state.HtmlResult;
+
+                model.HideFooterComments = true;
+
+                if (SessionState.IsAuthenticated && SessionState.CanCreate)
+                {
+                    SessionState.ShouldCreatePage = false;
+                }
+            }
+            else
+            {
+                var notExistPageName = ConfigurationRepository.Get<string>("Customization", "Page Not Exists Page");
+                string notExistPageNavigation = NamespaceNavigation.CleanAndValidate(notExistPageName);
+                var notExistsPage = PageRepository.GetPageRevisionByNavigation(notExistPageNavigation).EnsureNotNull();
+
+                SessionState.SetPageId(null, null);
+
+                var state = zelEngine.Transform(SessionState, notExistsPage);
+
+                SessionState.Page.Name = notExistsPage.Name;
+                model.Body = state.HtmlResult;
+
+                model.HideFooterComments = true;
+
+                if (SessionState.IsAuthenticated && SessionState.CanCreate)
+                {
+                    SessionState.ShouldCreatePage = true;
+                }
+            }
+
+            return View(model);
+        }
+
+        #endregion
+
+        #region Search.
+
+        [AllowAnonymous]
+        [HttpGet("Page/Search")]
+        public ActionResult Search()
+        {
+            string searchString = GetQueryValue("SearchString") ?? string.Empty;
+            if (string.IsNullOrEmpty(searchString) == false)
+            {
+                var model = new PageSearchViewModel()
+                {
+                    Pages = PageRepository.PageSearchPaged(Utility.SplitToTokens(searchString), GetQueryValue("page", 1)),
+                    SearchString = searchString
+                };
+
+                model.PaginationPageCount = (model.Pages.FirstOrDefault()?.PaginationPageCount ?? 0);
+
+                return View(model);
+            }
+
+            return View(new PageSearchViewModel()
+            {
+                Pages = new(),
+                SearchString = searchString
+            });
+        }
+
+        [AllowAnonymous]
+        [HttpPost("Page/Search")]
+        public ActionResult Search(PageSearchViewModel model)
+        {
+            string searchString = GetQueryValue("SearchString") ?? string.Empty;
+            if (string.IsNullOrEmpty(searchString) == false)
+            {
+                model = new PageSearchViewModel()
+                {
+                    Pages = PageRepository.PageSearchPaged(Utility.SplitToTokens(searchString), GetQueryValue("page", 1)),
+                    SearchString = searchString
+                };
+
+                model.PaginationPageCount = (model.Pages.FirstOrDefault()?.PaginationPageCount ?? 0);
+
+                return View(model);
+            }
+
+            return View(new PageSearchViewModel()
+            {
+                Pages = new(),
+                SearchString = searchString
+            });
+        }
+
+        #endregion
+
+        #region Comments.
+
+        [AllowAnonymous]
+        [HttpGet("{givenCanonical}/Comments")]
+        public ActionResult Comments(string givenCanonical)
+        {
+            SessionState.RequireViewPermission();
+
+            var pageNavigation = NamespaceNavigation.CleanAndValidate(givenCanonical);
+
+            var pageInfo = PageRepository.GetPageInfoByNavigation(pageNavigation);
+            if (pageInfo == null)
+            {
+                return NotFound();
+            }
+
+            var deleteAction = GetQueryValue("Delete");
+            if (string.IsNullOrEmpty(deleteAction) == false && SessionState.IsAuthenticated)
+            {
+                if (SessionState.CanModerate)
+                {
+                    //Moderators and administrators can delete comments that they do not own.
+                    PageRepository.DeletePageCommentById(pageInfo.Id, int.Parse(deleteAction));
+                }
+                else
+                {
+                    PageRepository.DeletePageCommentByUserAndId(pageInfo.Id, SessionState.Profile.EnsureNotNull().UserId, int.Parse(deleteAction));
+                }
+            }
+
+            var model = new PageCommentsViewModel();
+
+            var comments = PageRepository.GetPageCommentsPaged(pageNavigation, GetQueryValue("page", 1));
+            foreach (var comment in comments)
+            {
+                model.Comments.Add(new PageComment
+                {
+                    PaginationPageCount = comment.PaginationPageCount,
+                    UserNavigation = comment.UserNavigation,
+                    Id = comment.Id,
+                    UserName = comment.UserName,
+                    UserId = comment.UserId,
+                    Body = WikifierLite.Process(comment.Body),
+                    CreatedDate = SessionState.LocalizeDateTime(comment.CreatedDate)
+                });
+            }
+
+            model.PaginationPageCount = (model.Comments.FirstOrDefault()?.PaginationPageCount ?? 0);
+
+            SessionState.SetPageId(pageInfo.Id);
+
+            return View(model);
+        }
+
+        /// <summary>
+        /// Insert new page comment.
+        /// </summary>
+        /// <param name="model"></param>
+        /// <param name="givenCanonical"></param>
+        /// <param name="page"></param>
+        /// <returns></returns>
+        [Authorize]
+        [HttpPost("{givenCanonical}/Comments")]
+        public ActionResult Comments(PageCommentsViewModel model, string givenCanonical)
+        {
+            SessionState.RequireEditPermission();
+
+            if (!ModelState.IsValid)
+            {
+                return View(model);
+            }
+
+            string? errorMessage = null;
+
+            var pageNavigation = NamespaceNavigation.CleanAndValidate(givenCanonical);
+
+            var pageInfo = PageRepository.GetPageInfoByNavigation(pageNavigation);
+            if (pageInfo == null)
+            {
+                return NotFound();
+            }
+
+            PageRepository.InsertPageComment(pageInfo.Id, SessionState.Profile.EnsureNotNull().UserId, model.Comment);
+
+            model = new PageCommentsViewModel()
+            {
+                ErrorMessage = errorMessage.DefaultWhenNull(string.Empty)
+            };
+
+            var comments = PageRepository.GetPageCommentsPaged(pageNavigation, GetQueryValue("page", 1));
+            foreach (var comment in comments)
+            {
+                model.Comments.Add(new PageComment
+                {
+                    PaginationPageCount = comment.PaginationPageCount,
+                    UserNavigation = comment.UserNavigation,
+                    Id = comment.Id,
+                    UserName = comment.UserName,
+                    UserId = comment.UserId,
+                    Body = WikifierLite.Process(comment.Body),
+                    CreatedDate = SessionState.LocalizeDateTime(comment.CreatedDate)
+                });
+            }
+
+            model.PaginationPageCount = (model.Comments.FirstOrDefault()?.PaginationPageCount ?? 0);
+
+            SessionState.SetPageId(pageInfo.Id);
+
+            return View(model);
+        }
+
+        #endregion
+
+        #region Refresh.
+
+        [Authorize]
+        [HttpGet("{givenCanonical}/Refresh")]
+        public ActionResult Refresh(string givenCanonical)
+        {
+            var pageNavigation = NamespaceNavigation.CleanAndValidate(givenCanonical);
+
+            var page = PageRepository.GetPageRevisionByNavigation(pageNavigation, null, false);
+
+            if (page != null)
+            {
+                Engine.Implementation.Helpers.RefreshPageMetadata(zelEngine, page, SessionState);
+            }
+
+            return Redirect($"{GlobalConfiguration.BasePath}/{pageNavigation}");
+        }
+
+        #endregion
+
+        #region Revisions.
+
+        [Authorize]
+        [HttpGet("{givenCanonical}/Revisions")]
+        public ActionResult Revisions(string givenCanonical)
+        {
+            SessionState.RequireViewPermission();
+
+            var pageNavigation = NamespaceNavigation.CleanAndValidate(givenCanonical);
+
+            var pageNumber = GetQueryValue("page", 1);
+            var orderBy = GetQueryValue("OrderBy");
+            var orderByDirection = GetQueryValue("OrderByDirection");
+
+            var model = new RevisionsViewModel()
+            {
+                Revisions = PageRepository.GetPageRevisionsInfoByNavigationPaged(pageNavigation, pageNumber, orderBy, orderByDirection)
+            };
+
+            model.PaginationPageCount = (model.Revisions.FirstOrDefault()?.PaginationPageCount ?? 0);
+
+            model.Revisions.ForEach(o =>
+            {
+                o.CreatedDate = SessionState.LocalizeDateTime(o.CreatedDate);
+                o.ModifiedDate = SessionState.LocalizeDateTime(o.ModifiedDate);
+            });
+
+            foreach (var p in model.Revisions)
+            {
+                var thisRev = PageRepository.GetPageRevisionByNavigation(p.Navigation, p.Revision);
+                var prevRev = PageRepository.GetPageRevisionByNavigation(p.Navigation, p.Revision - 1);
+                p.ChangeSummary = Differentiator.GetComparisonSummary(thisRev?.Body ?? "", prevRev?.Body ?? "");
+            }
+
+            if (model.Revisions != null && model.Revisions.Count > 0)
+            {
+                SessionState.SetPageId(model.Revisions.First().PageId);
+            }
+
+            return View(model);
+        }
+
+        #endregion
+
+        #region Delete.
+
+        [Authorize]
+        [HttpPost("{givenCanonical}/Delete")]
+        public ActionResult Delete(string givenCanonical, PageDeleteViewModel model)
+        {
+            SessionState.RequireDeletePermission();
+
+            var pageNavigation = NamespaceNavigation.CleanAndValidate(givenCanonical);
+
+            var page = PageRepository.GetPageRevisionByNavigation(pageNavigation);
+            var instructions = PageRepository.GetPageProcessingInstructionsByPageId(page.EnsureNotNull().Id);
+            if (instructions.Contains(WikiInstruction.Protect))
+            {
+                return NotifyOfError("The page is protected and cannot be deleted. A moderator or an administrator must remove the protection before deletion.");
+            }
+
+            bool confirmAction = bool.Parse(GetFormValue("IsActionConfirmed").EnsureNotNull());
+            if (confirmAction == true && page != null)
+            {
+                PageRepository.MovePageToDeletedById(page.Id, (SessionState.Profile?.UserId).EnsureNotNullOrEmpty());
+                WikiCache.ClearCategory(WikiCacheKey.Build(WikiCache.Category.Page, [page.Navigation]));
+                WikiCache.ClearCategory(WikiCacheKey.Build(WikiCache.Category.Page, [page.Id]));
+                return NotifyOfSuccess("The page has been deleted.", $"/Home");
+            }
+
+            return Redirect($"{GlobalConfiguration.BasePath}/{pageNavigation}");
+        }
+
+        [Authorize]
+        [HttpGet("{givenCanonical}/Delete")]
+        public ActionResult Delete(string givenCanonical)
+        {
+            SessionState.RequireDeletePermission();
+
+            var pageNavigation = NamespaceNavigation.CleanAndValidate(givenCanonical);
+
+            var page = PageRepository.GetPageRevisionByNavigation(pageNavigation).EnsureNotNull();
+
+            var model = new PageDeleteViewModel()
+            {
+                CountOfAttachments = PageRepository.GetCountOfPageAttachmentsById(page.Id),
+                PageName = page.Name,
+                MostCurrentRevision = page.Revision,
+                PageRevision = page.Revision
+            };
+
+            SessionState.SetPageId(page.Id);
+
+            var instructions = PageRepository.GetPageProcessingInstructionsByPageId(page.Id);
+            if (instructions.Contains(WikiInstruction.Protect))
+            {
+                return NotifyOfError("The page is protected and cannot be deleted. A moderator or an administrator must remove the protection before deletion.");
+            }
+
+            return View(model);
+        }
+
+        #endregion
+
+        #region Revert.
+
+        [Authorize]
+        [HttpPost("{givenCanonical}/Revert/{pageRevision:int}")]
+        public ActionResult Revert(string givenCanonical, int pageRevision, PageRevertViewModel model)
+        {
+            SessionState.RequireModeratePermission();
+
+            var pageNavigation = NamespaceNavigation.CleanAndValidate(givenCanonical);
+
+            bool confirmAction = bool.Parse(GetFormValue("IsActionConfirmed").EnsureNotNullOrEmpty());
+            if (confirmAction == true)
+            {
+                var page = PageRepository.GetPageRevisionByNavigation(pageNavigation, pageRevision).EnsureNotNull();
+                Engine.Implementation.Helpers.UpsertPage(zelEngine, page, SessionState);
+                return NotifyOfSuccess("The page has been reverted.", $"/{pageNavigation}");
+            }
+
+            return Redirect($"{GlobalConfiguration.BasePath}/{pageNavigation}");
+        }
+
+        [Authorize]
+        [HttpGet("{givenCanonical}/Revert/{pageRevision:int}")]
+        public ActionResult Revert(string givenCanonical, int pageRevision)
+        {
+            SessionState.RequireModeratePermission();
+
+            var pageNavigation = NamespaceNavigation.CleanAndValidate(givenCanonical);
+
+            var mostCurrentPage = PageRepository.GetPageRevisionByNavigation(pageNavigation).EnsureNotNull();
+            mostCurrentPage.CreatedDate = SessionState.LocalizeDateTime(mostCurrentPage.CreatedDate);
+            mostCurrentPage.ModifiedDate = SessionState.LocalizeDateTime(mostCurrentPage.ModifiedDate);
+
+            var revisionPage = PageRepository.GetPageRevisionByNavigation(pageNavigation, pageRevision).EnsureNotNull();
+            revisionPage.CreatedDate = SessionState.LocalizeDateTime(revisionPage.CreatedDate);
+            revisionPage.ModifiedDate = SessionState.LocalizeDateTime(revisionPage.ModifiedDate);
+
+            var model = new PageRevertViewModel()
+            {
+                PageName = revisionPage.Name,
+                HighestRevision = mostCurrentPage.Revision,
+                HigherRevisionCount = revisionPage.HigherRevisionCount,
+            };
+
+            if (revisionPage != null)
+            {
+                SessionState.SetPageId(revisionPage.Id, pageRevision);
+            }
+
+            return View(model);
+        }
+
+        #endregion
+
+        #region Edit.
+
+        [Authorize]
+        [HttpGet("{givenCanonical}/Edit")]
+        [HttpGet("Page/Create")]
+        public ActionResult Edit(string givenCanonical)
+        {
+            SessionState.RequireEditPermission();
+
+            var pageNavigation = NamespaceNavigation.CleanAndValidate(givenCanonical);
+
+            var page = PageRepository.GetPageRevisionByNavigation(pageNavigation);
+            if (page != null)
+            {
+                var instructions = PageRepository.GetPageProcessingInstructionsByPageId(page.EnsureNotNull().Id);
+                if (SessionState.CanModerate == false && instructions.Contains(WikiInstruction.Protect))
+                {
+                    return NotifyOfError("The page is protected and cannot be modified except by a moderator or an administrator unless the protection is removed.");
+                }
+
+                SessionState.SetPageId(page.Id);
+
+                return View(new PageEditViewModel()
+                {
+                    Id = page.Id,
+                    Body = page.Body,
+                    Name = page.Name,
+                    Navigation = NamespaceNavigation.CleanAndValidate(page.Navigation),
+                    Description = page.Description
+                });
+            }
+            else
+            {
+                var pageName = GetQueryValue("Name").DefaultWhenNullOrEmpty(pageNavigation);
+
+                string templateName = ConfigurationRepository.Get<string>("Customization", "New Page Template").EnsureNotNull();
+                string templateNavigation = NamespaceNavigation.CleanAndValidate(templateName);
+                var templatePage = PageRepository.GetPageRevisionByNavigation(templateNavigation);
+
+                templatePage ??= new Page();
+
+                return View(new PageEditViewModel()
+                {
+                    Body = templatePage.Body,
+                    Name = pageName?.Replace('_', ' ') ?? string.Empty,
+                    Navigation = NamespaceNavigation.CleanAndValidate(pageNavigation)
+                });
+            }
+        }
+
+        [Authorize]
+        [HttpPost("{givenCanonical}/Edit")]
+        [HttpPost("Page/Create")]
+        public ActionResult Edit(PageEditViewModel model)
+        {
+            SessionState.RequireEditPermission();
+
+            if (!ModelState.IsValid)
+            {
+                return View(model);
+            }
+
+            if (model.Id == 0) //Saving a new page.
+            {
+                var page = new Page()
+                {
+                    CreatedDate = DateTime.UtcNow,
+                    CreatedByUserId = SessionState.Profile.EnsureNotNull().UserId,
+                    ModifiedDate = DateTime.UtcNow,
+                    ModifiedByUserId = SessionState.Profile.UserId,
+                    Body = model.Body ?? "",
+                    Name = model.Name,
+                    Navigation = NamespaceNavigation.CleanAndValidate(model.Name),
+                    Description = model.Description ?? ""
+                };
+
+                if (PageRepository.GetPageInfoByNavigation(page.Navigation) != null)
+                {
+                    ModelState.AddModelError("Name", "The page name you entered already exists.");
+                    return View(model);
+                }
+
+                page.Id = Engine.Implementation.Helpers.UpsertPage(zelEngine, page, SessionState);
+
+                SessionState.SetPageId(page.Id);
+
+                return NotifyOfSuccess("The page has been created.", $"/{page.Navigation}/Edit");
+            }
+            else
+            {
+                var page = PageRepository.GetPageRevisionById(model.Id).EnsureNotNull();
+                var instructions = PageRepository.GetPageProcessingInstructionsByPageId(page.Id);
+                if (SessionState.CanModerate == false && instructions.Contains(WikiInstruction.Protect))
+                {
+                    return NotifyOfError("The page is protected and cannot be modified except by a moderator or an administrator unless the protection is removed.");
+                }
+
+                string originalNavigation = string.Empty;
+
+                model.Navigation = NamespaceNavigation.CleanAndValidate(model.Name);
+
+                if (!page.Navigation.Equals(model.Navigation, StringComparison.InvariantCultureIgnoreCase))
+                {
+                    if (PageRepository.GetPageInfoByNavigation(model.Navigation) != null)
+                    {
+                        ModelState.AddModelError("Name", "The page name you entered already exists.");
+                        return View(model);
+                    }
+
+                    originalNavigation = page.Navigation; //So we can clear cache and this also indicates that we need to redirect to the new name.
+                }
+
+                page.ModifiedDate = DateTime.UtcNow;
+                page.ModifiedByUserId = SessionState.Profile.EnsureNotNull().UserId;
+                page.Body = model.Body ?? "";
+                page.Name = model.Name;
+                page.Navigation = NamespaceNavigation.CleanAndValidate(model.Name);
+                page.Description = model.Description ?? "";
+
+                Engine.Implementation.Helpers.UpsertPage(zelEngine, page, SessionState);
+
+                SessionState.SetPageId(page.Id);
+
+                model.SuccessMessage = "保存成功";
+
+                if (string.IsNullOrWhiteSpace(originalNavigation) == false)
+                {
+                    WikiCache.ClearCategory(WikiCacheKey.Build(WikiCache.Category.Page, [originalNavigation]));
+                    WikiCache.ClearCategory(WikiCacheKey.Build(WikiCache.Category.Page, [page.Id]));
+                    return Redirect($"{GlobalConfiguration.BasePath}/{page.Navigation}/Edit");
+                }
+
+                return View(model);
+            }
+        }
+
+        #endregion
+
+        #region File.
+
+        /// <summary>
+        /// Gets an image attached to a page.
+        /// </summary>
+        /// <param name="givenPageNavigation">The navigation link of the page.</param>
+        /// <param name="givenFileNavigation">The navigation link of the file.</param>
+        /// <param name="pageRevision">The revision of the the PAGE that the file is attached to (NOT THE FILE REVISION)</param>
+        /// <returns></returns>
+        [HttpGet("Page/Image/{givenPageNavigation}/{givenFileNavigation}/{pageRevision:int?}")]
+        public ActionResult Image(string givenPageNavigation, string givenFileNavigation, int? pageRevision = null)
+        {
+            var pageNavigation = new NamespaceNavigation(givenPageNavigation);
+            var fileNavigation = new NamespaceNavigation(givenFileNavigation);
+
+            string givenScale = GetQueryValue("Scale", "100");
+
+            var cacheKey = WikiCacheKeyFunction.Build(WikiCache.Category.Page, [givenPageNavigation, givenFileNavigation, pageRevision, givenScale]);
+            if (WikiCache.TryGet<ImageCacheItem>(cacheKey, out var cached))
+            {
+                return File(cached.Bytes, cached.ContentType);
+            }
+
+            var file = PageFileRepository.GetPageFileAttachmentByPageNavigationPageRevisionAndFileNavigation(pageNavigation.Canonical, fileNavigation.Canonical, pageRevision);
+
+            if (file != null)
+            {
+                if (file.ContentType == "image/x-icon")
+                {
+                    //We do not handle the resizing of icon file. Maybe later....
+                    return File(file.Data, file.ContentType);
+                }
+
+                var img = SixLabors.ImageSharp.Image.Load(new MemoryStream(file.Data));
+
+                int parsedScale = int.Parse(givenScale);
+                if (parsedScale > 500)
+                {
+                    parsedScale = 500;
+                }
+                if (parsedScale != 100)
+                {
+                    int width = (int)(img.Width * (parsedScale / 100.0));
+                    int height = (int)(img.Height * (parsedScale / 100.0));
+
+                    //Adjusting by a ratio (and especially after applying additional scaling) may have caused one
+                    //  dimension to become very small (or even negative). So here we will check the height and width
+                    //  to ensure they are both at least n pixels and adjust both dimensions.
+                    if (height < 16)
+                    {
+                        height += 16 - height;
+                        width += 16 - height;
+                    }
+                    if (width < 16)
+                    {
+                        height += 16 - width;
+                        width += 16 - width;
+                    }
+
+                    if (file.ContentType.Equals("image/gif", StringComparison.InvariantCultureIgnoreCase))
+                    {
+                        var resized = ResizeGifImage(file.Data, width, height);
+                        return File(resized, "image/gif");
+                    }
+                    else
+                    {
+                        using var image = ResizeImage(img, width, height);
+                        using var ms = new MemoryStream();
+                        file.ContentType = BestEffortConvertImage(image, ms, file.ContentType);
+                        var cacheItem = new ImageCacheItem(ms.ToArray(), file.ContentType);
+                        WikiCache.Put(cacheKey, cacheItem);
+                        return File(cacheItem.Bytes, cacheItem.ContentType);
+                    }
+                }
+                else
+                {
+                    return File(file.Data, file.ContentType);
+                }
+            }
+            else
+            {
+                return NotFound($"[{fileNavigation}] 无法在页面 [ {pageNavigation} ] 中找到.");
+            }
+        }
+
+        /// <summary>
+        /// Gets an image from the database, converts it to a PNG with optional scaling and returns it to the client.
+        /// </summary>
+        /// <param name="givenPageNavigation">The navigation link of the page.</param>
+        /// <param name="givenFileNavigation">The navigation link of the file.</param>
+        /// <param name="pageRevision">The revision of the the PAGE that the file is attached to (NOT THE FILE REVISION)</param>
+        /// <returns></returns>
+        [AllowAnonymous]
+        [HttpGet("Page/Png/{givenPageNavigation}/{givenFileNavigation}/{pageRevision:int?}")]
+        public ActionResult Png(string givenPageNavigation, string givenFileNavigation, int? pageRevision = null)
+        {
+            SessionState.RequireViewPermission();
+
+            var pageNavigation = new NamespaceNavigation(givenPageNavigation);
+            var fileNavigation = new NamespaceNavigation(givenFileNavigation);
+
+            string givenScale = GetQueryValue("Scale", "100");
+
+            var file = PageFileRepository.GetPageFileAttachmentByPageNavigationPageRevisionAndFileNavigation(pageNavigation.Canonical, fileNavigation.Canonical, pageRevision);
+            if (file != null)
+            {
+                var img = SixLabors.ImageSharp.Image.Load(new MemoryStream(Utility.Decompress(file.Data)));
+
+                int parsedScale = int.Parse(givenScale);
+                if (parsedScale > 500)
+                {
+                    parsedScale = 500;
+                }
+
+                if (parsedScale != 100)
+                {
+                    int width = (int)(img.Width * (parsedScale / 100.0));
+                    int height = (int)(img.Height * (parsedScale / 100.0));
+
+                    //Adjusting by a ratio (and especially after applying additional scaling) may have caused one
+                    //  dimension to become very small (or even negative). So here we will check the height and width
+                    //  to ensure they are both at least n pixels and adjust both dimensions.
+                    if (height < 16)
+                    {
+                        height += 16 - height;
+                        width += 16 - height;
+                    }
+                    if (width < 16)
+                    {
+                        height += 16 - width;
+                        width += 16 - width;
+                    }
+
+                    using var image = Images.ResizeImage(img, width, height);
+                    using var ms = new MemoryStream();
+                    image.SaveAsPng(ms);
+                    return File(ms.ToArray(), "image/png");
+                }
+                else
+                {
+                    using var ms = new MemoryStream();
+                    img.SaveAsPng(ms);
+                    return File(ms.ToArray(), "image/png");
+                }
+            }
+            else
+            {
+                return NotFound($"[{fileNavigation}] 无法在页面 [{pageNavigation}] 中找到.");
+            }
+        }
+
+        /// <summary>
+        /// Gets a file from the database and returns it to the client.
+        /// <param name="givenPageNavigation">The navigation link of the page.</param>
+        /// <param name="givenFileNavigation">The navigation link of the file.</param>
+        /// <param name="pageRevision">The revision of the the PAGE that the file is attached to (NOT THE FILE REVISION)</param>
+        /// </summary>
+        [AllowAnonymous]
+        [HttpGet("Page/Binary/{givenPageNavigation}/{givenFileNavigation}/{pageRevision:int?}")]
+        public ActionResult Binary(string givenPageNavigation, string givenFileNavigation, int? pageRevision = null)
+        {
+            SessionState.RequireViewPermission();
+
+            var pageNavigation = new NamespaceNavigation(givenPageNavigation);
+            var fileNavigation = new NamespaceNavigation(givenFileNavigation);
+
+            var file = PageFileRepository.GetPageFileAttachmentByPageNavigationPageRevisionAndFileNavigation(pageNavigation.Canonical, fileNavigation.Canonical, pageRevision);
+
+            if (file != null)
+            {
+                return File(file.Data.ToArray(), file.ContentType);
+            }
+            else
+            {
+                HttpContext.Response.StatusCode = 404;
+                return NotFound($"[{fileNavigation}] 无法在页面 [{pageNavigation}] 中找到.");
+            }
+        }
+
+        #endregion
+    }
+}

ZelWiki/Controllers/ProfileController.cs

@@ -0,0 +1,444 @@
+using Microsoft.AspNetCore.Authentication;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using NTDLS.Helpers;
+using SixLabors.ImageSharp;
+using System.Security.Claims;
+using ZelWiki.Caching;
+using ZelWiki.Engine;
+using ZelWiki.Engine.Implementation.Utility;
+using ZelWiki.Library;
+using ZelWiki.Models;
+using ZelWiki.Models.DataModels;
+using ZelWiki.Models.ViewModels.Profile;
+using ZelWiki.Repository;
+using static ZelWiki.Library.Images;
+
+namespace ZelWiki.Controllers
+{
+    [Route("[controller]")]
+    public class ProfileController(SignInManager<IdentityUser> signInManager, UserManager<IdentityUser> userManager, IWebHostEnvironment environment)
+        : WikiControllerBase(signInManager, userManager)
+    {
+        private readonly IWebHostEnvironment _environment = environment;
+
+        #region User Profile.
+
+        /// <summary>
+        /// //Gets a users avatar.
+        /// </summary>
+        /// <param name="navigation"></param>
+        /// <returns></returns>
+        [AllowAnonymous]
+        [HttpGet]
+        [HttpGet("{userAccountName}/Avatar")]
+        public ActionResult Avatar(string userAccountName)
+        {
+            SessionState.RequireViewPermission();
+            SessionState.Page.Name = $"Avatar";
+
+            string givenScale = Request.Query["Scale"].ToString().ToString().DefaultWhenNullOrEmpty("100");
+            string givenMax = Request.Query["max"].ToString().DefaultWhenNullOrEmpty("512");
+            string? givenExact = Request.Query["exact"];
+
+            ProfileAvatar? avatar;
+            if (GlobalConfiguration.EnablePublicProfiles)
+            {
+                avatar = UsersRepository.GetProfileAvatarByNavigation(NamespaceNavigation.CleanAndValidate(userAccountName));
+            }
+            else
+            {
+                avatar = new ProfileAvatar();
+            }
+
+            if (avatar.Bytes == null || avatar.Bytes.Length == 0)
+            {
+                //Load the default avatar.
+                var filePath = Path.Combine(_environment.WebRootPath, "Avatar.png");
+                var image = Image.Load(filePath);
+                using var ms = new MemoryStream();
+                image.SaveAsPng(ms);
+                avatar.ContentType = "image/png";
+                avatar.Bytes = ms.ToArray();
+            }
+
+            if (avatar.Bytes != null && avatar.Bytes.Length > 0)
+            {
+                if (avatar.ContentType == "image/x-icon")
+                {
+                    //We do not handle the resizing of icon file. Maybe later....
+                    return File(avatar.Bytes, avatar.ContentType);
+                }
+
+                var img = Image.Load(new MemoryStream(avatar.Bytes));
+
+                int width = img.Width;
+                int height = img.Height;
+
+                int parsedScale = int.Parse(givenScale);
+                int parsedMax = int.Parse(givenMax);
+
+                if (string.IsNullOrEmpty(givenExact) == false)
+                {
+                    int parsedExact = int.Parse(givenExact);
+                    if (parsedExact > 1024)
+                    {
+                        parsedExact = 1024;
+                    }
+                    else if (parsedExact < 16)
+                    {
+                        parsedExact = 16;
+                    }
+
+                    int diff = img.Width - parsedExact;
+                    width = (int)(img.Width - diff);
+                    height = (int)(img.Height - diff);
+
+                    //Adjusting by a ratio (and especially after applying additional scaling) may have caused one
+                    //  dimension to become very small (or even negative). So here we will check the height and width
+                    //  to ensure they are both at least n pixels and adjust both dimensions.
+                    if (height < 16)
+                    {
+                        int difference = 16 - height;
+                        height += difference;
+                        width += difference;
+                    }
+                    if (width < 16)
+                    {
+                        int difference = 16 - width;
+                        height += difference;
+                        width += difference;
+                    }
+                }
+                else if (parsedMax != 0 && (img.Width > parsedMax || img.Height > parsedMax))
+                {
+                    int diff = img.Width - parsedMax;
+                    width = (int)(img.Width - diff);
+                    height = (int)(img.Height - diff);
+
+                    //Adjusting by a ratio (and especially after applying additional scaling) may have caused one
+                    //  dimension to become very small (or even negative). So here we will check the height and width
+                    //  to ensure they are both at least n pixels and adjust both dimensions.
+                    if (height < 16)
+                    {
+                        int difference = 16 - height;
+                        height += difference;
+                        width += difference;
+                    }
+                    if (width < 16)
+                    {
+                        int difference = 16 - width;
+                        height += difference;
+                        width += difference;
+                    }
+                }
+                else if (parsedScale != 100)
+                {
+                    width = (int)(img.Width * (parsedScale / 100.0));
+                    height = (int)(img.Height * (parsedScale / 100.0));
+
+                    //Adjusting by a ratio (and especially after applying additional scaling) may have caused one
+                    //  dimension to become very small (or even negative). So here we will check the height and width
+                    //  to ensure they are both at least n pixels and adjust both dimensions.
+                    if (height < 16)
+                    {
+                        int difference = 16 - height;
+                        height += difference;
+                        width += difference;
+                    }
+                    if (width < 16)
+                    {
+                        int difference = 16 - width;
+                        height += difference;
+                        width += difference;
+                    }
+                }
+                else
+                {
+                    return File(avatar.Bytes, avatar.ContentType);
+                }
+
+                if (avatar.ContentType.Equals("image/gif", StringComparison.InvariantCultureIgnoreCase))
+                {
+                    var resized = ResizeGifImage(avatar.Bytes, width, height);
+                    return File(resized, "image/gif");
+                }
+                else
+                {
+                    using var image = ResizeImage(img, width, height);
+                    using var ms = new MemoryStream();
+                    string contentType = BestEffortConvertImage(image, ms, avatar.ContentType);
+                    return File(ms.ToArray(), contentType);
+                }
+            }
+            else
+            {
+                return NotFound();
+            }
+        }
+
+        /// <summary>
+        /// Get user profile.
+        /// </summary>
+        /// <returns></returns>
+        [AllowAnonymous]
+        [HttpGet("{userAccountName}/Public")]
+        public ActionResult Public(string userAccountName)
+        {
+            SessionState.Page.Name = $"Public Profile";
+
+            userAccountName = NamespaceNavigation.CleanAndValidate(userAccountName);
+
+            if (!GlobalConfiguration.EnablePublicProfiles)
+            {
+                return View(new PublicViewModel
+                {
+                    ErrorMessage = "Public profiles are disabled."
+                });
+            }
+
+            if (UsersRepository.TryGetAccountProfileByNavigation(userAccountName, out var accountProfile) == false)
+            {
+                return View(new PublicViewModel
+                {
+                    ErrorMessage = "The specified user was not found."
+                });
+            }
+
+            var model = new PublicViewModel()
+            {
+                AccountName = accountProfile.AccountName,
+                Navigation = accountProfile.Navigation,
+                Id = accountProfile.UserId,
+                TimeZone = accountProfile.TimeZone,
+                Language = accountProfile.Language,
+                Country = accountProfile.Country,
+                Biography = WikifierLite.Process(accountProfile.Biography),
+                Avatar = accountProfile.Avatar
+            };
+
+            model.RecentlyModified = PageRepository.GetTopRecentlyModifiedPagesInfoByUserId(accountProfile.UserId, GlobalConfiguration.DefaultProfileRecentlyModifiedCount)
+                .OrderByDescending(o => o.ModifiedDate).ThenBy(o => o.Name).ToList();
+
+            foreach (var item in model.RecentlyModified)
+            {
+                var thisRev = PageRepository.GetPageRevisionByNavigation(item.Navigation, item.Revision);
+                var prevRev = PageRepository.GetPageRevisionByNavigation(item.Navigation, item.Revision - 1);
+                item.ChangeSummary = Differentiator.GetComparisonSummary(thisRev?.Body ?? "", prevRev?.Body ?? "");
+            }
+
+            return View(model);
+        }
+
+        /// <summary>
+        /// Get user profile.
+        /// </summary>
+        /// <returns></returns>
+        [Authorize]
+        [HttpGet]
+        [HttpGet("My")]
+        public ActionResult My()
+        {
+            SessionState.RequireAuthorizedPermission();
+            SessionState.Page.Name = $"My Profile";
+
+            var model = new AccountProfileViewModel()
+            {
+                AccountProfile = AccountProfileAccountViewModel.FromDataModel(
+                    UsersRepository.GetAccountProfileByUserId(SessionState.Profile.EnsureNotNull().UserId)),
+
+                Themes = ConfigurationRepository.GetAllThemes(),
+                TimeZones = TimeZoneItem.GetAll(),
+                Countries = CountryItem.GetAll(),
+                Languages = LanguageItem.GetAll()
+            };
+
+            model.AccountProfile.CreatedDate = SessionState.LocalizeDateTime(model.AccountProfile.CreatedDate);
+            model.AccountProfile.ModifiedDate = SessionState.LocalizeDateTime(model.AccountProfile.ModifiedDate);
+
+            return View(model);
+        }
+
+        /// <summary>
+        /// Save user profile.
+        /// </summary>
+        /// <param name="profile"></param>
+        /// <returns></returns>
+        [Authorize]
+        [HttpPost("My")]
+        public ActionResult My(AccountProfileViewModel model)
+        {
+            SessionState.RequireAuthorizedPermission();
+
+            SessionState.Page.Name = $"My Profile";
+
+            model.TimeZones = TimeZoneItem.GetAll();
+            model.Countries = CountryItem.GetAll();
+            model.Languages = LanguageItem.GetAll();
+            model.Themes = ConfigurationRepository.GetAllThemes();
+
+            //Get the UserId from the logged in context because we do not trust anything from the model.
+            var userId = SessionState.Profile.EnsureNotNull().UserId;
+
+            if (!ModelState.IsValid)
+            {
+                return View(model);
+            }
+
+            var user = UserManager.FindByIdAsync(userId.ToString()).Result.EnsureNotNull();
+
+            var profile = UsersRepository.GetAccountProfileByUserId(userId);
+            if (!profile.Navigation.Equals(model.AccountProfile.Navigation, StringComparison.CurrentCultureIgnoreCase))
+            {
+                if (UsersRepository.DoesProfileAccountExist(model.AccountProfile.AccountName))
+                {
+                    ModelState.AddModelError("Account.AccountName", "Account name is already in use.");
+                    return View(model);
+                }
+            }
+
+            model.AccountProfile.Navigation = NamespaceNavigation.CleanAndValidate(model.AccountProfile.AccountName.ToLower());
+
+            var file = Request.Form.Files["Avatar"];
+            if (file != null && file.Length > 0)
+            {
+                if (GlobalConfiguration.AllowableImageTypes.Contains(file.ContentType.ToLower()) == false)
+                {
+                    model.ErrorMessage += "Could not save the attached image, type not allowed.\r\n";
+                }
+                else if (file.Length > GlobalConfiguration.MaxAvatarFileSize)
+                {
+                    model.ErrorMessage += "Could not save the attached image, too large.\r\n";
+                }
+                else
+                {
+                    try
+                    {
+                        var imageBytes = Utility.ConvertHttpFileToBytes(file);
+                        var image = Image.Load(new MemoryStream(imageBytes));
+                        UsersRepository.UpdateProfileAvatar(profile.UserId, imageBytes, file.ContentType.ToLower());
+                    }
+                    catch
+                    {
+                        ModelState.AddModelError("Account.Avatar", "Could not save the attached image.");
+                    }
+                }
+            }
+
+            profile.AccountName = model.AccountProfile.AccountName;
+            profile.Navigation = NamespaceNavigation.CleanAndValidate(model.AccountProfile.AccountName);
+            profile.Biography = model.AccountProfile.Biography;
+            profile.ModifiedDate = DateTime.UtcNow;
+            UsersRepository.UpdateProfile(profile);
+
+            var claims = new List<Claim>
+                    {
+                        new ("timezone", model.AccountProfile.TimeZone),
+                        new (ClaimTypes.Country, model.AccountProfile.Country),
+                        new ("language", model.AccountProfile.Language),
+                        new ("firstname", model.AccountProfile.FirstName ?? ""),
+                        new ("lastname", model.AccountProfile.LastName ?? ""),
+                        new ("theme", model.AccountProfile.Theme ?? ""),
+                    };
+            SecurityRepository.UpsertUserClaims(UserManager, user, claims);
+
+            SignInManager.RefreshSignInAsync(user);
+            WikiCache.ClearCategory(WikiCacheKey.Build(WikiCache.Category.User, [profile.Navigation]));
+            WikiCache.ClearCategory(WikiCacheKey.Build(WikiCache.Category.User, [profile.UserId]));
+
+            model.SuccessMessage = "保存成功";
+
+            //This is not 100% necessary, I just want to prevent the user from needing to refresh to view the new theme.
+            SessionState.UserTheme = ConfigurationRepository.GetAllThemes().SingleOrDefault(o => o.Name == model.AccountProfile.Theme) ?? GlobalConfiguration.SystemTheme;
+
+            return View(model);
+        }
+
+        #endregion
+
+        #region Delete.
+
+        /// <summary>
+        /// User is deleting their own profile.
+        /// </summary>
+        /// <param name="model"></param>
+        /// <returns></returns>
+        [Authorize]
+        [HttpPost("Delete")]
+        public ActionResult Delete(DeleteAccountViewModel model)
+        {
+            SessionState.RequireAuthorizedPermission();
+
+            var profile = UsersRepository.GetBasicProfileByUserId(SessionState.Profile.EnsureNotNull().UserId);
+
+            bool confirmAction = bool.Parse(GetFormValue("IsActionConfirmed").EnsureNotNull());
+            if (confirmAction == true && profile != null)
+            {
+                var user = UserManager.FindByIdAsync(profile.UserId.ToString()).Result;
+                if (user == null)
+                {
+                    return NotFound("User 404 404 404.");
+                }
+
+                var result = UserManager.DeleteAsync(user).Result;
+                if (!result.Succeeded)
+                {
+                    throw new Exception(string.Join("<br />\r\n", result.Errors.Select(o => o.Description)));
+                }
+
+                SignInManager.SignOutAsync();
+
+                UsersRepository.AnonymizeProfile(profile.UserId);
+                WikiCache.ClearCategory(WikiCacheKey.Build(WikiCache.Category.User, [profile.Navigation]));
+
+                HttpContext.SignOutAsync(); //Do we still need this??
+                return Redirect($"{GlobalConfiguration.BasePath}/Profile/Deleted");
+            }
+
+            return Redirect($"{GlobalConfiguration.BasePath}/Profile/My");
+        }
+
+        /// <summary>
+        /// User is deleting their own profile.
+        /// </summary>
+        /// <returns></returns>
+        [Authorize]
+        [HttpGet("Delete")]
+        public ActionResult Delete()
+        {
+            SessionState.RequireAuthorizedPermission();
+            SessionState.Page.Name = $"Delete Account";
+
+            var profile = UsersRepository.GetBasicProfileByUserId(SessionState.Profile.EnsureNotNull().UserId);
+
+            var model = new DeleteAccountViewModel()
+            {
+                AccountName = profile.AccountName
+            };
+
+            if (profile != null)
+            {
+                SessionState.Page.Name = $"Delete {profile.AccountName}";
+            }
+
+            return View(model);
+        }
+
+        /// <summary>
+        /// User is deleting their own profile.
+        /// </summary>
+        /// <returns></returns>
+        [Authorize]
+        [HttpGet("Deleted")]
+        public ActionResult Deleted()
+        {
+            var model = new DeletedAccountViewModel()
+            {
+            };
+            return View(model);
+        }
+
+        #endregion
+    }
+}

ZelWiki/Controllers/TagsController.cs

@@ -0,0 +1,70 @@
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using System.Text;
+using ZelWiki.Engine.Implementation.Utility;
+using ZelWiki.Library;
+using ZelWiki.Models.ViewModels.Page;
+using ZelWiki.Repository;
+
+namespace ZelWiki.Controllers
+{
+    [Authorize]
+    public class TagsController(SignInManager<IdentityUser> signInManager, UserManager<IdentityUser> userManager)
+        : WikiControllerBase(signInManager, userManager)
+    {
+        [AllowAnonymous]
+        public ActionResult Browse(string navigation)
+        {
+            SessionState.RequireViewPermission();
+
+            SessionState.Page.Name = "Tags";
+
+            navigation = NamespaceNavigation.CleanAndValidate(navigation);
+
+            string glossaryName = "glossary_" + (new Random()).Next(0, 1000000).ToString();
+            var pages = PageRepository.GetPageInfoByTag(navigation).OrderBy(o => o.Name).ToList();
+            var glossaryHtml = new StringBuilder();
+            var alphabet = pages.Select(p => p.Name.Substring(0, 1).ToUpper()).Distinct();
+
+            if (pages.Count > 0)
+            {
+                glossaryHtml.Append("<center>");
+                foreach (var alpha in alphabet)
+                {
+                    glossaryHtml.Append("<a href=\"#" + glossaryName + "_" + alpha + "\">" + alpha + "</a>&nbsp;");
+                }
+                glossaryHtml.Append("</center>");
+
+                glossaryHtml.Append("<ul>");
+                foreach (var alpha in alphabet)
+                {
+                    glossaryHtml.Append("<li><a name=\"" + glossaryName + "_" + alpha + "\">" + alpha + "</a></li>");
+
+                    glossaryHtml.Append("<ul>");
+                    foreach (var page in pages.Where(p => p.Name.StartsWith(alpha, StringComparison.InvariantCultureIgnoreCase)))
+                    {
+                        glossaryHtml.Append("<li><a href=\"/" + page.Navigation + "\">" + page.Name + "</a>");
+
+                        if (page.Description.Length > 0)
+                        {
+                            glossaryHtml.Append(" - " + page.Description);
+                        }
+                        glossaryHtml.Append("</li>");
+                    }
+                    glossaryHtml.Append("</ul>");
+                }
+
+                glossaryHtml.Append("</ul>");
+            }
+
+            var model = new BrowseViewModel
+            {
+                AssociatedPages = glossaryHtml.ToString(),
+                TagCloud = TagCloud.Build(navigation, 100)
+            };
+
+            return View(model);
+        }
+    }
+}

ZelWiki/Controllers/UtilityController.cs

@@ -0,0 +1,54 @@
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using NTDLS.Helpers;
+using ZelWiki.Models.ViewModels.Utility;
+
+namespace ZelWiki.Controllers
+{
+    [Authorize]
+    [Route("[controller]")]
+    public class UtilityController(SignInManager<IdentityUser> signInManager, UserManager<IdentityUser> userManager)
+        : WikiControllerBase(signInManager, userManager)
+    {
+        [AllowAnonymous]
+        [HttpGet("Notify")]
+        public ActionResult Notify()
+        {
+            SessionState.RequireViewPermission();
+
+            var model = new NotifyViewModel()
+            {
+                SuccessMessage = GetQueryValue("SuccessMessage", string.Empty),
+                ErrorMessage = GetQueryValue("ErrorMessage", string.Empty),
+                RedirectURL = GetQueryValue("RedirectURL", string.Empty),
+                RedirectTimeout = GetQueryValue("RedirectTimeout", 0)
+            };
+
+            return View(model);
+        }
+
+        [AllowAnonymous]
+        [HttpPost("ConfirmAction")]
+        public ActionResult ConfirmAction(ConfirmActionViewModel model)
+        {
+            return View(model);
+        }
+
+        [AllowAnonymous]
+        [HttpGet("ConfirmAction")]
+        public ActionResult ConfirmAction()
+        {
+            var model = new ConfirmActionViewModel
+            {
+                ControllerURL = GetQueryValue("controllerURL").EnsureNotNull(),
+                YesRedirectURL = GetQueryValue("yesRedirectURL").EnsureNotNull(),
+                NoRedirectURL = GetQueryValue("noRedirectURL").EnsureNotNull(),
+                Message = GetQueryValue("message").EnsureNotNull(),
+                Style = GetQueryValue("Style").EnsureNotNull()
+            };
+
+            return View(model);
+        }
+    }
+}

ZelWiki/Controllers/WikiControllerBase.cs

@@ -0,0 +1,71 @@
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.Filters;
+using NTDLS.Helpers;
+using ZelWiki.Models;
+
+namespace ZelWiki.Controllers
+{
+    public class WikiControllerBase(SignInManager<IdentityUser> signInManager, UserManager<IdentityUser> userManager)
+        : Controller
+    {
+        public SessionState SessionState { get; private set; } = new();
+
+        public readonly SignInManager<IdentityUser> SignInManager = signInManager;
+        public readonly UserManager<IdentityUser> UserManager = userManager;
+
+        [NonAction]
+        public override void OnActionExecuting(ActionExecutingContext filterContext)
+            => ViewData["SessionState"] = SessionState.Hydrate(SignInManager, this);
+
+        [NonAction]
+        public override RedirectResult Redirect(string? url)
+            => base.Redirect(url.EnsureNotNull());
+
+        [NonAction]
+        protected string? GetQueryValue(string key)
+            => Request.Query[key];
+
+        [NonAction]
+        protected string GetQueryValue(string key, string defaultValue)
+            => (string?)Request.Query[key] ?? defaultValue;
+
+        [NonAction]
+        protected int GetQueryValue(string key, int defaultValue)
+            => int.Parse(GetQueryValue(key, defaultValue.ToString()));
+
+        [NonAction]
+        protected string? GetFormValue(string key)
+            => Request.Form[key];
+
+        [NonAction]
+        protected string GetFormValue(string key, string defaultValue)
+            => (string?)Request.Form[key] ?? defaultValue;
+
+        [NonAction]
+        protected int GetFormValue(string key, int defaultValue)
+            => int.Parse(GetFormValue(key, defaultValue.ToString()));
+
+        /// <summary>
+        /// Displays the successMessage unless the errorMessage is present.
+        /// </summary>
+        /// <returns></returns>
+        protected RedirectResult NotifyOf(string successMessage, string errorMessage, string redirectUrl)
+            => Redirect($"{GlobalConfiguration.BasePath}/Utility/Notify?SuccessMessage={Uri.EscapeDataString(successMessage)}&ErrorMessage={Uri.EscapeDataString(errorMessage)}&RedirectUrl={Uri.EscapeDataString($"{GlobalConfiguration.BasePath}{redirectUrl}")}&RedirectTimeout=5");
+
+        protected RedirectResult NotifyOfSuccess(string message, string redirectUrl)
+            => Redirect($"{GlobalConfiguration.BasePath}/Utility/Notify?SuccessMessage={Uri.EscapeDataString(message)}&RedirectUrl={Uri.EscapeDataString($"{GlobalConfiguration.BasePath}{redirectUrl}")}&RedirectTimeout=5");
+
+        protected RedirectResult NotifyOfError(string message, string redirectUrl)
+            => Redirect($"{GlobalConfiguration.BasePath}/Utility/Notify?ErrorMessage={Uri.EscapeDataString(message)}&RedirectUrl={Uri.EscapeDataString(Uri.EscapeDataString($"{GlobalConfiguration.BasePath}{redirectUrl}"))}");
+
+        protected RedirectResult NotifyOf(string successMessage, string errorMessage)
+            => Redirect($"{GlobalConfiguration.BasePath}/Utility/Notify?SuccessMessage={Uri.EscapeDataString(successMessage)}&ErrorMessage={Uri.EscapeDataString(errorMessage)}&RedirectTimeout=5");
+
+        protected RedirectResult NotifyOfSuccess(string message)
+            => Redirect($"{GlobalConfiguration.BasePath}/Utility/Notify?SuccessMessage={Uri.EscapeDataString(message)}");
+
+        protected RedirectResult NotifyOfError(string message)
+            => Redirect($"{GlobalConfiguration.BasePath}/Utility/Notify?ErrorMessage={Uri.EscapeDataString(message)}");
+    }
+}

ZelWiki/ExceptionHandlingMiddleware.cs

@@ -0,0 +1,58 @@
+using System.Text;
+using ZelWiki.Exceptions;
+using ZelWiki.Models;
+using ZelWiki.Repository;
+
+namespace ZelWiki
+{
+    /// <summary>
+    /// Intercepts exceptions so that we can throw "UnauthorizedException" from controllers to simplify permissions.
+    /// </summary>
+    public class ExceptionHandlingMiddleware
+    {
+        private readonly RequestDelegate _next;
+        private readonly ILogger<ExceptionHandlingMiddleware> _logger;
+
+        public ExceptionHandlingMiddleware(RequestDelegate next, ILogger<ExceptionHandlingMiddleware> logger)
+        {
+            _next = next;
+            _logger = logger;
+        }
+
+        public async Task InvokeAsync(HttpContext context)
+        {
+            try
+            {
+                await _next(context);
+            }
+            catch (UnauthorizedException ex)
+            {
+                _logger.LogError(ex, ex.Message);
+                context.Response.StatusCode = StatusCodes.Status401Unauthorized;
+                context.Response.ContentType = "application/json";
+                await context.Response.WriteAsync(string.Empty);
+            }
+            catch (Exception ex)
+            {
+                string request = $"{context.Request.Path}{context.Request.QueryString}";
+                var routeValues = new StringBuilder();
+
+                foreach (var rv in context.Request.RouteValues)
+                {
+                    routeValues.AppendLine($"{rv},");
+                }
+                if (routeValues.Length > 1) routeValues.Length--; //Trim trailing comma.
+
+                var exceptionText = $"IP Address: {context.Connection.RemoteIpAddress},\r\n Request: {request},\r\n RouteValues: {routeValues}\r\n";
+
+                _logger.LogError(ex, exceptionText);
+                ExceptionRepository.InsertException(ex, exceptionText);
+
+                context.Response.StatusCode = StatusCodes.Status500InternalServerError;
+                context.Response.ContentType = "application/json";
+
+                context.Response.Redirect($"{GlobalConfiguration.BasePath}/Utility/Notify?ErrorMessage={Uri.EscapeDataString("An unexpected error has occurred. The details of this exception have been logged.")}");
+            }
+        }
+    }
+}

ZelWiki/Exceptions/UnauthorizedException.cs

@@ -0,0 +1,15 @@
+namespace ZelWiki.Exceptions
+{
+    public class UnauthorizedException : Exception
+    {
+        public UnauthorizedException()
+            : base()
+        {
+        }
+
+        public UnauthorizedException(string message)
+            : base(message)
+        {
+        }
+    }
+}

ZelWiki/PageModelBase.cs

@@ -0,0 +1,75 @@
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.Filters;
+using Microsoft.AspNetCore.Mvc.RazorPages;
+using ZelWiki.Models;
+
+namespace ZelWiki
+{
+    public class PageModelBase : PageModel
+    {
+        public SessionState SessionState { get; private set; } = new();
+        public SignInManager<IdentityUser> SignInManager { get; private set; }
+
+        public string CustomSuccessMessage { get; set; } = string.Empty;
+        public string CustomErrorMessage { get; set; } = string.Empty;
+
+        public PageModelBase(SignInManager<IdentityUser> signInManager)
+        {
+            SignInManager = signInManager;
+        }
+
+        public override void OnPageHandlerExecuting(PageHandlerExecutingContext context)
+        {
+            ViewData["SessionState"] = SessionState.Hydrate(SignInManager, this);
+        }
+
+        /*
+        [NonAction]
+        public override RedirectResult Redirect(string? url)
+            => base.Redirect(url.EnsureNotNull());
+        */
+
+        [NonAction]
+        protected string? GetQueryString(string key)
+            => Request.Query[key];
+
+        [NonAction]
+        protected string GetQueryString(string key, string defaultValue)
+            => ((string?)Request.Query[key]) ?? defaultValue;
+
+        [NonAction]
+        protected int GetQueryString(string key, int defaultValue)
+            => int.Parse(GetQueryString(key, defaultValue.ToString()));
+
+        [NonAction]
+        protected string? GetFormString(string key)
+            => Request.Form[key];
+
+        [NonAction]
+        protected string GetFormString(string key, string defaultValue)
+            => ((string?)Request.Form[key]) ?? defaultValue;
+
+        [NonAction]
+        protected int GetFormString(string key, int defaultValue)
+            => int.Parse(GetFormString(key, defaultValue.ToString()));
+
+        protected RedirectResult NotifyOfAction(string successMessage, string errorMessage, string redirectUrl)
+            => Redirect($"{GlobalConfiguration.BasePath}/Utility/NotifyWithRedirectCountdown?SuccessMessage={successMessage}&ErrorMessage={errorMessage}&RedirectUrl={GlobalConfiguration.BasePath}{redirectUrl}");
+
+        protected RedirectResult NotifyOfSuccessAction(string message, string redirectUrl)
+            => Redirect($"{GlobalConfiguration.BasePath}/Utility/NotifyWithRedirectCountdown?SuccessMessage={message}&RedirectUrl={GlobalConfiguration.BasePath}{redirectUrl}");
+
+        protected RedirectResult NotifyOfErrorAction(string message, string redirectUrl)
+            => Redirect($"{GlobalConfiguration.BasePath}/Utility/NotifyWithRedirectCountdown?ErrorMessage={message}&RedirectUrl={GlobalConfiguration.BasePath}{redirectUrl}");
+
+        protected RedirectResult Notify(string successMessage, string errorMessage)
+            => Redirect($"{GlobalConfiguration.BasePath}/Utility/Notify?SuccessMessage={successMessage}&ErrorMessage={GlobalConfiguration.BasePath}{errorMessage}");
+
+        protected RedirectResult NotifyOfSuccess(string message)
+            => Redirect($"{GlobalConfiguration.BasePath}/Utility/Notify?SuccessMessage={message}");
+
+        protected RedirectResult NotifyOfError(string message)
+            => Redirect($"{GlobalConfiguration.BasePath}/Utility/Notify?ErrorMessage={message}");
+    }
+}

ZelWiki/Pages/Error.cshtml

@@ -0,0 +1,26 @@
+@page
+@model ErrorModel
+@{
+    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>

ZelWiki/Pages/Error.cshtml.cs

@@ -0,0 +1,28 @@
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using System.Diagnostics;
+
+namespace ZelWiki.Pages
+{
+    [ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
+    [IgnoreAntiforgeryToken]
+    public class ErrorModel : PageModelBase
+    {
+        public string? RequestId { get; set; }
+
+        public bool ShowRequestId => !string.IsNullOrEmpty(RequestId);
+
+        private readonly ILogger<ErrorModel> _logger;
+
+        public ErrorModel(SignInManager<IdentityUser> signInManager, ILogger<ErrorModel> logger)
+            : base(signInManager)
+        {
+            _logger = logger;
+        }
+
+        public void OnGet()
+        {
+            RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier;
+        }
+    }
+}

ZelWiki/Pages/Privacy.cshtml

@@ -0,0 +1,8 @@
+@page
+@model PrivacyModel
+@{
+    ViewData["Title"] = "Privacy Policy";
+}
+<h1>@ViewData["Title"]</h1>
+
+<p>隐私政策.</p>

ZelWiki/Pages/Privacy.cshtml.cs

@@ -0,0 +1,19 @@
+using Microsoft.AspNetCore.Identity;
+
+namespace ZelWiki.Pages
+{
+    public class PrivacyModel : PageModelBase
+    {
+        private readonly ILogger<PrivacyModel> _logger;
+
+        public PrivacyModel(SignInManager<IdentityUser> signInManager, ILogger<PrivacyModel> logger)
+            : base(signInManager)
+        {
+            _logger = logger;
+        }
+
+        public void OnGet()
+        {
+        }
+    }
+}

ZelWiki/Pages/Shared/_LoginPartial.cshtml

@@ -0,0 +1,26 @@
+@using Microsoft.AspNetCore.Identity
+@inject SignInManager<IdentityUser> SignInManager
+@inject UserManager<IdentityUser> UserManager
+
+<ul class="navbar-nav">
+    @if (SignInManager.IsSignedIn(User))
+    {
+        <li class="nav-item">
+            <a class="nav-link text-dark" asp-area="Identity" asp-page="/Profile/Manage/Index" title="Manage">Hello @User.Identity?.Name!</a>
+        </li>
+        <li class="nav-item">
+            <form class="form-inline" asp-area="Identity" asp-page="/Account/Logout" asp-route-returnUrl="@Url.Page("/Index", new { area = "" })">
+                <button type="submit" class="nav-link btn btn-link text-dark">登出</button>
+            </form>
+        </li>
+    }
+    else
+    {
+@*         <li class="nav-item">
+            <a class="nav-link text-dark" asp-area="Identity" asp-page="/Account/Register">注册</a>
+        </li> *@
+        <li class="nav-item">
+            <a class="nav-link text-dark" asp-area="Identity" asp-page="/Account/Login">登录</a>
+        </li>
+    }
+</ul>

ZelWiki/Pages/Shared/_ValidationScriptsPartial.cshtml

@@ -0,0 +1,2 @@
+<script src="~/lib/jquery-validation/dist/jquery.validate.min.js"></script>
+<script src="~/lib/jquery-validation-unobtrusive/jquery.validate.unobtrusive.min.js"></script>

ZelWiki/Pages/_ViewImports.cshtml

@@ -0,0 +1,2 @@
+@namespace ZelWiki.Pages
+@addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers

ZelWiki/Pages/_ViewStart.cshtml

@@ -0,0 +1,3 @@
+@{
+    Layout = "_Layout";
+}

ZelWiki/Program.cs

@@ -0,0 +1,232 @@
+using Autofac;
+using Autofac.Core;
+using Autofac.Extensions.DependencyInjection;
+using Dapper;
+using Microsoft.AspNetCore.Authentication.OAuth;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.EntityFrameworkCore;
+using ZelWiki.Engine;
+using ZelWiki.Email;
+using ZelWiki.Engine.Implementation;
+using ZelWiki.Engine.Library.Interfaces;
+using ZelWiki.Library;
+using ZelWiki.Library.Interfaces;
+using ZelWiki.Models;
+using ZelWiki.Repository;
+
+namespace ZelWiki
+{
+    public class Program
+    {
+        public static void Main(string[] args)
+        {
+            SqlMapper.AddTypeHandler(new GuidTypeHandler());
+
+            var builder = WebApplication.CreateBuilder(args);
+
+            builder.Services.AddDbContext<ApplicationDbContext>(options =>
+                options.UseSqlite(builder.Configuration.GetConnectionString("UsersConnection")));
+
+            ManagedDataStorage.Pages.SetConnectionString(builder.Configuration.GetConnectionString("PagesConnection"));
+            ManagedDataStorage.DeletedPages.SetConnectionString(builder.Configuration.GetConnectionString("DeletedPagesConnection"));
+            ManagedDataStorage.DeletedPageRevisions.SetConnectionString(builder.Configuration.GetConnectionString("DeletedPageRevisionsConnection"));
+            ManagedDataStorage.Statistics.SetConnectionString(builder.Configuration.GetConnectionString("StatisticsConnection"));
+            ManagedDataStorage.Emoji.SetConnectionString(builder.Configuration.GetConnectionString("EmojiConnection"));
+            ManagedDataStorage.Exceptions.SetConnectionString(builder.Configuration.GetConnectionString("ExceptionsConnection"));
+            ManagedDataStorage.Users.SetConnectionString(builder.Configuration.GetConnectionString("UsersConnection"));
+            ManagedDataStorage.Config.SetConnectionString(builder.Configuration.GetConnectionString("ConfigConnection"));
+
+            ConfigurationRepository.UpgradeDatabase();
+            ConfigurationRepository.ReloadEverything();
+
+            var membershipConfig = ConfigurationRepository.GetConfigurationEntryValuesByGroupName("Membership");
+            var requireConfirmedAccount = membershipConfig.Value<bool>("Require Email Verification");
+
+            // Add services to the container.
+            builder.Services.AddDatabaseDeveloperPageExceptionFilter();
+
+            builder.Services.AddControllersWithViews(); // Adds support for controllers and views
+
+            builder.Services.AddSingleton<IWikiEmailSender, WikiEmailSender>();
+
+            builder.Services.AddDefaultIdentity<IdentityUser>(options => options.SignIn.RequireConfirmedAccount = requireConfirmedAccount)
+                .AddEntityFrameworkStores<ApplicationDbContext>();
+
+            var ExternalAuthenticationConfig = ConfigurationRepository.GetConfigurationEntryValuesByGroupName("External Authentication");
+
+            var authentication = builder.Services.AddAuthentication();
+
+            if (ExternalAuthenticationConfig.Value<bool>("Google : Use Google Authentication"))
+            {
+                var clientId = ExternalAuthenticationConfig.Value<string>("Google : ClientId");
+                var clientSecret = ExternalAuthenticationConfig.Value<string>("Google : ClientSecret");
+
+                if (clientId != null && clientSecret != null && !string.IsNullOrEmpty(clientId) && !string.IsNullOrEmpty(clientSecret))
+                {
+                    authentication.AddGoogle(options =>
+                    {
+                        options.ClientId = clientId;
+                        options.ClientSecret = clientSecret;
+
+                        options.Events = new OAuthEvents
+                        {
+                            OnRemoteFailure = context =>
+                            {
+                                context.Response.Redirect($"{GlobalConfiguration.BasePath}/Utility/Notify?ErrorMessage={Uri.EscapeDataString("External login was canceled.")}");
+                                context.HandleResponse();
+                                return Task.CompletedTask;
+                            }
+                        };
+                    });
+                }
+            }
+            if (ExternalAuthenticationConfig.Value<bool>("Microsoft : Use Microsoft Authentication"))
+            {
+                var clientId = ExternalAuthenticationConfig.Value<string>("Microsoft : ClientId");
+                var clientSecret = ExternalAuthenticationConfig.Value<string>("Microsoft : ClientSecret");
+
+                if (clientId != null && clientSecret != null && !string.IsNullOrEmpty(clientId) && !string.IsNullOrEmpty(clientSecret))
+                {
+                    authentication.AddMicrosoftAccount(options =>
+                    {
+                        options.ClientId = clientId;
+                        options.ClientSecret = clientSecret;
+
+                        options.Events = new OAuthEvents
+                        {
+                            OnRemoteFailure = context =>
+                            {
+                                context.Response.Redirect($"{GlobalConfiguration.BasePath}/Utility/Notify?ErrorMessage={Uri.EscapeDataString("External login was canceled.")}");
+                                context.HandleResponse();
+                                return Task.CompletedTask;
+                            }
+                        };
+
+                    });
+                }
+            }
+
+            builder.Services.AddControllersWithViews();
+
+            builder.Services.AddRazorPages();
+
+            builder.Host.UseServiceProviderFactory(new AutofacServiceProviderFactory());
+            builder.Host.ConfigureContainer<ContainerBuilder>(containerBuilder =>
+            {
+                containerBuilder.RegisterType<StandardFunctionHandler>().As<IStandardFunctionHandler>().SingleInstance();
+                containerBuilder.RegisterType<ScopeFunctionHandler>().As<IScopeFunctionHandler>().SingleInstance();
+                containerBuilder.RegisterType<ProcessingInstructionFunctionHandler>().As<IProcessingInstructionFunctionHandler>().SingleInstance();
+                containerBuilder.RegisterType<PostProcessingFunctionHandler>().As<IPostProcessingFunctionHandler>().SingleInstance();
+                containerBuilder.RegisterType<MarkupHandler>().As<IMarkupHandler>().SingleInstance();
+                containerBuilder.RegisterType<HeadingHandler>().As<IHeadingHandler>().SingleInstance();
+                containerBuilder.RegisterType<CommentHandler>().As<ICommentHandler>().SingleInstance();
+                containerBuilder.RegisterType<EmojiHandler>().As<IEmojiHandler>().SingleInstance();
+                containerBuilder.RegisterType<ExternalLinkHandler>().As<IExternalLinkHandler>().SingleInstance();
+                containerBuilder.RegisterType<InternalLinkHandler>().As<IInternalLinkHandler>().SingleInstance();
+                containerBuilder.RegisterType<ExceptionHandler>().As<IExceptionHandler>().SingleInstance();
+                containerBuilder.RegisterType<CompletionHandler>().As<ICompletionHandler>().SingleInstance();
+
+                containerBuilder.RegisterType<ZelEngine>().As<IZelEngine>().SingleInstance();
+            });
+
+            var basePath = builder.Configuration.GetValue<string>("BasePath");
+            if (!string.IsNullOrEmpty(basePath))
+            {
+                GlobalConfiguration.BasePath = basePath;
+
+                builder.Services.ConfigureApplicationCookie(options =>
+                {
+                    if (!string.IsNullOrEmpty(basePath))
+                    {
+                        options.LoginPath = new PathString($"{basePath}/Identity/Account/Login");
+                        options.LogoutPath = new PathString($"{basePath}/Identity/Account/Logout");
+                        options.AccessDeniedPath = new PathString($"{basePath}/Identity/Account/AccessDenied");
+                        options.Cookie.Path = basePath; // Ensure the cookie is scoped to the sub-site path.
+                    }
+                    else
+                    {
+                        options.LoginPath = new PathString("/Identity/Account/Login");
+                        options.LogoutPath = new PathString("/Identity/Account/Logout");
+                        options.AccessDeniedPath = new PathString("/Identity/Account/AccessDenied");
+                        options.Cookie.Path = "/"; // Use root path if no base path is set.
+                    }
+                });
+            }
+
+            var app = builder.Build();
+
+            //Configure the HTTP request pipeline.
+            if (app.Environment.IsDevelopment())
+            {
+                app.UseMigrationsEndPoint();
+            }
+            else
+            {
+                app.UseExceptionHandler("/Error");
+                // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
+                app.UseHsts();
+            }
+
+            app.UseMiddleware<ExceptionHandlingMiddleware>();
+
+            app.UseHttpsRedirection();
+            app.UseStaticFiles();
+
+            if (!string.IsNullOrEmpty(basePath))
+            {
+                app.UsePathBase(basePath);
+
+                // Redirect root requests to basePath (something like '/TightWiki').
+                app.Use(async (context, next) =>
+                {
+                    if (context.Request.Path == "/")
+                    {
+                        context.Response.Redirect(basePath);
+                        return;
+                    }
+                    await next();
+                });
+
+                app.UseStaticFiles(new StaticFileOptions
+                {
+                    OnPrepareResponse = ctx =>
+                    {
+                        ctx.Context.Request.PathBase = basePath;
+                    }
+                });
+            }
+
+            app.UseRouting();
+
+            app.UseAuthentication(); // Ensures the authentication middleware is configured
+            app.UseAuthorization();
+
+            app.MapRazorPages();
+
+            app.MapControllerRoute(
+                name: "default",
+                pattern: "{controller=Page}/{action=Display}");
+
+            app.MapControllerRoute(
+                name: "Page_Edit",
+                pattern: "Page/{givenCanonical}/Edit");
+
+            using (var scope = app.Services.CreateScope())
+            {
+                var services = scope.ServiceProvider;
+                try
+                {
+                    var userManager = services.GetRequiredService<UserManager<IdentityUser>>();
+                    SecurityRepository.ValidateEncryptionAndCreateAdminUser(userManager);
+                }
+                catch (Exception ex)
+                {
+                    var logger = services.GetRequiredService<ILogger<Program>>();
+                    logger.LogError(ex, "An error occurred while seeding the database.");
+                }
+            }
+
+            app.Run();
+        }
+    }
+}

ZelWiki/Properties/PublishProfiles/FolderProfile.pubxml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+https://go.microsoft.com/fwlink/?LinkID=208121.
+-->
+<Project>
+  <PropertyGroup>
+    <DeleteExistingFiles>true</DeleteExistingFiles>
+    <ExcludeApp_Data>false</ExcludeApp_Data>
+    <LaunchSiteAfterPublish>true</LaunchSiteAfterPublish>
+    <LastUsedBuildConfiguration>Release</LastUsedBuildConfiguration>
+    <LastUsedPlatform>Any CPU</LastUsedPlatform>
+    <PublishProvider>FileSystem</PublishProvider>
+    <PublishUrl>C:\DropZone\TightWiki.Production\TightWiki</PublishUrl>
+    <WebPublishMethod>FileSystem</WebPublishMethod>
+    <_TargetId>Folder</_TargetId>
+    <SiteUrlToLaunchAfterPublish />
+    <TargetFramework>net9.0</TargetFramework>
+    <ProjectGuid>d738e581-7699-4c8d-b965-92970c75c110</ProjectGuid>
+    <SelfContained>false</SelfContained>
+  </PropertyGroup>
+</Project>

ZelWiki/Properties/launchSettings.json

@@ -0,0 +1,38 @@
+{
+  "profiles": {
+    "http": {
+      "commandName": "Project",
+      "launchBrowser": true,
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      },
+      "dotnetRunMessages": true,
+      "applicationUrl": "http://localhost:5088"
+    },
+    //"https": {
+    //  "commandName": "Project",
+    //  "launchBrowser": true,
+    //  "environmentVariables": {
+    //    "ASPNETCORE_ENVIRONMENT": "Development"
+    //  },
+    //  "dotnetRunMessages": true,
+    //  "applicationUrl": "http://localhost:7053;http://localhost:5088"
+    //},
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": true,
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  },
+  "$schema": "http://json.schemastore.org/launchsettings.json",
+  "iisSettings": {
+    "windowsAuthentication": false,
+    "anonymousAuthentication": true,
+    "iisExpress": {
+      "applicationUrl": "http://localhost:63292",
+      "sslPort": 44394
+    }
+  }
+}

ZelWiki/Properties/serviceDependencies.json

@@ -0,0 +1,8 @@
+{
+  "dependencies": {
+    "sqlite1": {
+      "type": "sqlite",
+      "connectionId": "ConnectionStrings:Default"
+    }
+  }
+}

ZelWiki/Properties/serviceDependencies.local.json

@@ -0,0 +1,10 @@
+{
+  "dependencies": {
+    "sqlite1": {
+      "secretStore": "LocalSecretsFile",
+      "resourceId": null,
+      "type": "sqlite.local",
+      "connectionId": "ConnectionStrings:Default"
+    }
+  }
+}

ZelWiki/SessionState.cs

@@ -0,0 +1,266 @@
+using Microsoft.AspNetCore.Authentication;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.RazorPages;
+using NTDLS.Helpers;
+using System.Security.Claims;
+using ZelWiki.Exceptions;
+using ZelWiki.Library;
+using ZelWiki.Library.Interfaces;
+using ZelWiki.Models;
+using ZelWiki.Models.DataModels;
+using ZelWiki.Repository;
+//using static ZelWiki.Library.Constants;
+
+namespace ZelWiki
+{
+    public class SessionState : ISessionState
+    {
+        public IQueryCollection? QueryString { get; set; }
+
+        #region Authentication.
+
+        public bool IsAuthenticated { get; set; }
+        public IAccountProfile? Profile { get; set; }
+        public string Role { get; set; } = string.Empty;
+        public Theme UserTheme { get; set; } = new();
+
+        #endregion
+
+        #region Current Page.
+
+        /// <summary>
+        /// Custom page title set by a call to @@Title("...")
+        /// </summary>
+        public string? PageTitle { get; set; }
+        public bool ShouldCreatePage { get; set; }
+        public string PageNavigation { get; set; } = string.Empty;
+        public string PageNavigationEscaped { get; set; } = string.Empty;
+        public string PageTags { get; set; } = string.Empty;
+        public ProcessingInstructionCollection PageInstructions { get; set; } = new();
+
+        /// <summary>
+        /// The "page" here is more of a "mock page", we use the name for various stuff.
+        /// </summary>
+        public IPage Page { get; set; } = new Models.DataModels.Page() { Name = GlobalConfiguration.Name };
+
+        #endregion
+
+        public SessionState Hydrate(SignInManager<IdentityUser> signInManager, PageModel pageModel)
+        {
+            QueryString = pageModel.Request.Query;
+
+            HydrateSecurityContext(pageModel.HttpContext, signInManager, pageModel.User);
+            return this;
+        }
+
+        public SessionState Hydrate(SignInManager<IdentityUser> signInManager, Controller controller)
+        {
+            QueryString = controller.Request.Query;
+            PageNavigation = RouteValue("givenCanonical", "Home");
+            PageNavigationEscaped = Uri.EscapeDataString(PageNavigation);
+
+            HydrateSecurityContext(controller.HttpContext, signInManager, controller.User);
+
+            string RouteValue(string key, string defaultValue = "")
+            {
+                if (controller.RouteData.Values.ContainsKey(key))
+                {
+                    return controller.RouteData.Values[key]?.ToString() ?? defaultValue;
+                }
+                return defaultValue;
+            }
+
+            return this;
+        }
+
+        private void HydrateSecurityContext(HttpContext httpContext, SignInManager<IdentityUser> signInManager, ClaimsPrincipal user)
+        {
+            IsAuthenticated = false;
+
+            UserTheme = GlobalConfiguration.SystemTheme;
+
+            if (signInManager.IsSignedIn(user))
+            {
+                try
+                {
+                    string emailAddress = (user.Claims.First(x => x.Type == ClaimTypes.Email)?.Value).EnsureNotNull();
+
+                    if (user.Identity?.IsAuthenticated == true)
+                    {
+                        var userId = Guid.Parse((user.Claims.First(x => x.Type == ClaimTypes.NameIdentifier)?.Value).EnsureNotNull());
+
+                        if (UsersRepository.TryGetBasicProfileByUserId(userId, out var profile))
+                        {
+                            Profile = profile;
+                            Role = Profile.Role;
+                            UserTheme = ConfigurationRepository.GetAllThemes().SingleOrDefault(o => o.Name == Profile.Theme) ?? GlobalConfiguration.SystemTheme;
+                            IsAuthenticated = true;
+                        }
+                        else
+                        {
+                            //User is signed in, but does not have a profile.
+                            //This likely means that the user has authenticated externally, but has yet to complete the signup process.
+                        }
+                    }
+                }
+                catch (Exception ex)
+                {
+                    httpContext.SignOutAsync();
+                    if (user.Identity != null)
+                    {
+                        httpContext.SignOutAsync(user.Identity.AuthenticationType);
+                    }
+
+                    ExceptionRepository.InsertException(ex);
+                }
+            }
+        }
+
+        /// <summary>
+        /// Sets the current context pageId and optionally the revision.
+        /// </summary>
+        /// <param name="pageId"></param>
+        /// <param name="revision"></param>
+        /// <exception cref="Exception"></exception>
+        public void SetPageId(int? pageId, int? revision = null)
+        {
+            Page = new Models.DataModels.Page();
+            PageInstructions = new();
+            PageTags = string.Empty;
+
+            if (pageId != null)
+            {
+                Page = PageRepository.GetLimitedPageInfoByIdAndRevision((int)pageId, revision)
+                    ?? throw new Exception("Page not found");
+
+                PageInstructions = PageRepository.GetPageProcessingInstructionsByPageId(Page.Id);
+
+                if (GlobalConfiguration.IncludeWikiTagsInMeta)
+                {
+                    PageTags = string.Join(",", PageRepository.GetPageTagsById(Page.Id)?.Select(o => o.Tag) ?? []);
+                }
+            }
+        }
+
+        #region Permissions.
+
+        public bool IsMemberOf(string role, string[] roles)
+            => roles.Contains(role);
+
+        public void RequireAuthorizedPermission()
+        {
+            if (!IsAuthenticated) throw new UnauthorizedException();
+        }
+
+        public void RequireEditPermission()
+        {
+            if (!CanEdit) throw new UnauthorizedException();
+        }
+
+        public void RequireViewPermission()
+        {
+            if (!CanView) throw new UnauthorizedException();
+        }
+
+        public void RequireAdminPermission()
+        {
+            if (!CanAdmin) throw new UnauthorizedException();
+        }
+
+        public void RequireModeratePermission()
+        {
+            if (!CanModerate) throw new UnauthorizedException();
+        }
+
+        public void RequireCreatePermission()
+        {
+            if (!CanCreate) throw new UnauthorizedException();
+        }
+
+        public void RequireDeletePermission()
+        {
+            if (!CanDelete) throw new UnauthorizedException();
+        }
+
+        /// <summary>
+        /// Is the current user (or anonymous) allowed to view?
+        /// </summary>
+        public bool CanView => true;
+
+        /// <summary>
+        /// Is the current user allowed to edit?
+        /// </summary>
+        public bool CanEdit
+        {
+            get
+            {
+                if (IsAuthenticated)
+                {
+                    if (PageInstructions.Contains(Constants.WikiInstruction.Protect))
+                    {
+                        return IsMemberOf(Role, [Constants.Roles.Administrator, Constants.Roles.Moderator]);
+                    }
+
+                    return IsMemberOf(Role, [Constants.Roles.Administrator, Constants.Roles.Contributor, Constants.Roles.Moderator]);
+                }
+                return false;
+            }
+        }
+
+        /// <summary>
+        /// Is the current user allowed to perform administrative functions?
+        /// </summary>
+        public bool CanAdmin =>
+            IsAuthenticated && IsMemberOf(Role, [Constants.Roles.Administrator]);
+
+        /// <summary>
+        /// Is the current user allowed to moderate content (such as delete comments, and view moderation tools)?
+        /// </summary>
+        public bool CanModerate =>
+            IsAuthenticated && IsMemberOf(Role, [Constants.Roles.Administrator, Constants.Roles.Moderator]);
+
+        /// <summary>
+        /// Is the current user allowed to create pages?
+        /// </summary>
+        public bool CanCreate =>
+            IsAuthenticated && IsMemberOf(Role, [Constants.Roles.Administrator, Constants.Roles.Contributor, Constants.Roles.Moderator]);
+
+        /// <summary>
+        /// Is the current user allowed to delete unprotected pages?
+        /// </summary>
+        public bool CanDelete
+        {
+            get
+            {
+                if (IsAuthenticated)
+                {
+                    if (PageInstructions.Contains(Constants.WikiInstruction.Protect))
+                    {
+                        return false;
+                    }
+
+                    return IsMemberOf(Role, [Constants.Roles.Administrator, Constants.Roles.Moderator]);
+                }
+
+                return false;
+            }
+        }
+
+        #endregion
+
+        public DateTime LocalizeDateTime(DateTime datetime)
+        {
+            return TimeZoneInfo.ConvertTimeFromUtc(datetime, GetPreferredTimeZone());
+        }
+
+        public TimeZoneInfo GetPreferredTimeZone()
+        {
+            if (string.IsNullOrEmpty(Profile?.TimeZone))
+            {
+                return TimeZoneInfo.FindSystemTimeZoneById(GlobalConfiguration.DefaultTimeZone);
+            }
+            return TimeZoneInfo.FindSystemTimeZoneById(Profile.TimeZone);
+        }
+    }
+}

ZelWiki/Views/Admin/Account.cshtml

@@ -0,0 +1,199 @@
+@using ZelWiki.Models
+@model ZelWiki.Models.ViewModels.Admin.AccountProfileViewModel
+@{
+    Layout = "/Views/Shared/_Layout.cshtml";
+    var sessionState = ViewData["SessionState"] as ZelWiki.SessionState ?? throw new Exception("Wiki State Context cannot be null.");
+}
+
+<h3>
+    用户
+</h3>
+
+<p>
+    账号设置<br /><br />
+</p>
+
+
+@if (!string.IsNullOrEmpty(Model.ErrorMessage))
+{
+    <div class="alert alert-danger">@Html.Raw(Model.ErrorMessage)</div>
+}
+@if (!string.IsNullOrEmpty(Model.SuccessMessage))
+{
+    <div class="alert alert-success">@Html.Raw(Model.SuccessMessage)</div>
+}
+
+
+@using (Html.BeginForm(null, null, new { navigation = Model.AccountProfile.Navigation }, FormMethod.Post, true, new { action = $"{GlobalConfiguration.BasePath}{Context.Request.Path}", enctype = "multipart/form-data" }))
+{
+    @Html.AntiForgeryToken()
+
+    <div class="container">
+        <form>
+            @Html.HiddenFor(m => m.AccountProfile.UserId)
+            @Html.HiddenFor(m => m.AccountProfile.Navigation)
+
+            <div class="form-group row mb-1">
+                <label for="Avatar" class="col-sm-2 col-form-label"><strong>头像</strong></label>
+                <div class="col-sm-10">
+                    @if (@Model.AccountProfile.Navigation != "")
+                    {
+                        <img src="@GlobalConfiguration.BasePath/Profile/@Model.AccountProfile.Navigation/Avatar?max=150" class="mb-3" />
+                    }
+                    <input type="file" id="Avatar" name="Avatar" class="form-control-file" onchange="fileCheck(this);" />
+                </div>
+            </div>
+
+            <div class="form-group row mb-1">
+                <label for="EmailAddress" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => m.AccountProfile.EmailAddress)</strong></label>
+                <div class="col-sm-10">
+                    @Html.TextBoxFor(m => m.AccountProfile.EmailAddress, new { @class = "form-control" })
+                    <div class="text-danger">@Html.ValidationMessageFor(m => m.AccountProfile.EmailAddress)</div>
+                </div>
+            </div>
+            <div class="form-group row mb-1" style="display:none;">
+                <label for="EmailConfirmed" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => m.AccountProfile.EmailConfirmed)</strong></label>
+                <div class="col-sm-10">
+                    @Html.CheckBoxFor(m => m.AccountProfile.EmailConfirmed, new { @class = "input-control" })
+                </div>
+            </div>
+
+            <div class="form-group row mb-1">
+                <label for="AccountName" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => m.AccountProfile.AccountName)</strong></label>
+                <div class="col-sm-10">
+                    @Html.TextBoxFor(m => m.AccountProfile.AccountName, new { @class = "form-control" })
+                    <div class="text-danger">@Html.ValidationMessageFor(m => m.AccountProfile.AccountName)</div>
+                </div>
+            </div>
+
+            <div class="form-group row mb-1">
+                <label for="LastName" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => m.AccountProfile.LastName)</strong></label>
+                <div class="col-sm-10">
+                    @Html.TextBoxFor(m => m.AccountProfile.LastName, new { @class = "form-control" })
+                    <div class="text-danger">@Html.ValidationMessageFor(m => m.AccountProfile.LastName)</div>
+                </div>
+            </div>
+
+            <div class="form-group row mb-1">
+                <label for="FirstName" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => m.AccountProfile.FirstName)</strong></label>
+                <div class="col-sm-10">
+                    @Html.TextBoxFor(m => m.AccountProfile.FirstName, new { @class = "form-control" })
+                    <div class="text-danger">@Html.ValidationMessageFor(m => m.AccountProfile.FirstName)</div>
+                </div>
+            </div>
+
+            <div class="form-group row mb-1">
+                <label for="Role" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => m.AccountProfile.Role)</strong></label>
+                <div class="col-sm-10">
+                    <select name="AccountProfile.Role" id="AccountProfile.Role" class="form-control">
+                        <option value="" style="color:#ccc !important;">Select a role</option>
+                        @foreach (var item in Model.Roles)
+                        {
+                            <option value="@item.Name" selected=@(Model.AccountProfile.Role == item.Name ? "selected" : null)>
+                                @item.Name
+                            </option>
+                        }
+                    </select>
+                    <div class="text-danger">@Html.ValidationMessageFor(m => m.AccountProfile.Role)</div>
+                </div>
+            </div>
+
+            <div class="form-group row mb-1">
+                <label for="Theme" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => m.AccountProfile.Theme)</strong></label>
+                <div class="col-sm-10">
+                    <select name="AccountProfile.Theme" id="AccountProfile.Theme" class="form-control">
+                        <option value="">System Default</option>
+                        @foreach (var item in Model.Themes)
+                        {
+                            <option value="@item.Name" selected=@(Model.AccountProfile.Theme == item.Name ? "selected" : null)>
+                                @item.Name
+                            </option>
+                        }
+                    </select>
+                    <div class="text-danger">@Html.ValidationMessageFor(m => m.AccountProfile.Theme)</div>
+                </div>
+            </div>
+
+            <div class="form-group row mb-1">
+                <label for="Country" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => m.AccountProfile.Country)</strong></label>
+                <div class="col-sm-10">
+                    <select name="AccountProfile.Country" id="AccountProfile.Country" class="form-control">
+                        <option value="" style="color:#ccc !important;">Select a country</option>
+                        @foreach (var item in Model.Countries)
+                        {
+                            <option value="@item.Value" selected=@(Model.AccountProfile.Country == item.Value ? "selected" : null)>
+                                @item.Text
+                            </option>
+                        }
+                    </select>
+                    <div class="text-danger">@Html.ValidationMessageFor(m => m.AccountProfile.Country)</div>
+                </div>
+            </div>
+
+            <div class="form-group row mb-1">
+                <label for="Language" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => m.AccountProfile.Language)</strong></label>
+                <div class="col-sm-10">
+                    <select name="AccountProfile.Language" id="AccountProfile.Language" class="form-control">
+                        <option value="" style="color:#ccc !important;">选择一个语言</option>
+                        @foreach (var item in Model.Languages)
+                        {
+                            <option value="@item.Value" selected=@(Model.AccountProfile.Language == item.Value ? "selected" : null)>
+                                @item.Text
+                            </option>
+                        }
+                    </select>
+                    <div class="text-danger">@Html.ValidationMessageFor(m => m.AccountProfile.Language)</div>
+                </div>
+            </div>
+
+            <div class="form-group row mb-1">
+                <label for="TimeZone" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => m.AccountProfile.TimeZone)</strong></label>
+                <div class="col-sm-10">
+                    <select name="AccountProfile.TimeZone" id="AccountProfile.TimeZone" class="form-control">
+                        <option value="" style="color:#ccc !important;">Select a time-zone</option>
+                        @foreach (var item in Model.TimeZones)
+                        {
+                            <option value="@item.Value" selected=@(Model.AccountProfile.TimeZone == item.Value ? "selected" : null)>
+                                @item.Text
+                            </option>
+                        }
+                    </select>
+                    <div class="text-danger">@Html.ValidationMessageFor(m => m.AccountProfile.TimeZone)</div>
+                </div>
+            </div>
+
+            <div class="form-group row mb-1">
+                <label for="Password" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => m.Credential.Password)</strong></label>
+                <div class="col-sm-10">
+                    @Html.PasswordFor(m => m.Credential.Password, new { @class = "form-control", value = Model.Credential.Password })
+                    <div class="text-danger">@Html.ValidationMessageFor(m => m.Credential.Password)</div>
+                </div>
+            </div>
+            <div class="form-group row mb-1">
+                <label for="ComparePassword" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => m.Credential.ComparePassword)</strong></label>
+                <div class="col-sm-10">
+                    @Html.PasswordFor(m => m.Credential.ComparePassword, new { @class = "form-control", value = Model.Credential.Password })
+                    <div class="text-danger">@Html.ValidationMessageFor(m => m.Credential.ComparePassword)</div>
+                </div>
+            </div>
+
+            <div class="form-group row mb-1">
+                <label for="Biography" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => m.AccountProfile.Biography)</strong></label>
+                <div class="col-sm-10">
+                    @Html.TextAreaFor(m => m.AccountProfile.Biography, new { @class = "form-control", style = "height:200px", Name = "Biography" })
+                    <div class="text-danger">@Html.ValidationMessageFor(m => m.AccountProfile.Biography)</div>
+                </div>
+            </div>
+
+            <div class="form-group row mb-1">
+                <div class="col-sm-10 offset-sm-2">
+                    <button type="submit" class="btn btn btn-primary rounded-0">保存!</button>
+                </div>
+            </div>
+        </form>
+    </div>
+
+}
+<br />
+
+<form action="@GlobalConfiguration.BasePath/Admin/DeleteAccount/@Model.AccountProfile.Navigation"><button type="submit" class="btn btn-danger rounded-0">删除账号</button></form>

ZelWiki/Views/Admin/Accounts.cshtml

@@ -0,0 +1,90 @@
+@model ZelWiki.Models.ViewModels.Admin.AccountsViewModel
+@using ZelWiki.Library
+@using ZelWiki.Models
+@{
+    Layout = "/Views/Shared/_Layout.cshtml";
+    var sessionState = ViewData["SessionState"] as ZelWiki.SessionState ?? throw new Exception("Wiki State Context cannot be null.");
+}
+
+<h3>
+    账号
+</h3>
+
+<p>
+    <br /><br />
+</p>
+
+
+@if (!string.IsNullOrEmpty(Model.ErrorMessage))
+{
+    <div class="alert alert-danger">@Html.Raw(Model.ErrorMessage)</div>
+}
+@if (!string.IsNullOrEmpty(Model.SuccessMessage))
+{
+    <div class="alert alert-success">@Html.Raw(Model.SuccessMessage)</div>
+}
+
+<a class="btn btn-success btn-thin" href="@GlobalConfiguration.BasePath/Admin/AddAccount">新增</a>
+<br />
+<br />
+
+@using (Html.BeginForm(null, null, FormMethod.Get, new { action = $"{GlobalConfiguration.BasePath}{Context.Request.Path}" }))
+{
+    <div class="container">
+        <div class="d-flex justify-content-end mb-4">
+            <div class="flex-grow-1 me-2">
+                @Html.TextBoxFor(x => x.SearchString, new { @class = "form-control" })
+            </div>
+            <button type="submit" value="Search" class="btn btn-primary">搜索</button>
+        </div>
+    </div>
+
+    @if (Model.Users.Count > 0)
+    {
+        <table class="table fixedTable100 table-striped" border="0" cellspacing="0" cellpadding="0">
+            <thead>
+                <tr>
+                    <td><strong><a href="?@QueryStringConverter.OrderHelper(sessionState, "Account")">账号</a></strong></td>
+                    <td><strong><a href="?@QueryStringConverter.OrderHelper(sessionState, "LastName")">姓</a></strong></td>
+                    <td><strong><a href="?@QueryStringConverter.OrderHelper(sessionState, "FirstName")">名</a></strong></td>
+                    <td><strong><a href="?@QueryStringConverter.OrderHelper(sessionState, "Country")">国家</a></strong></td>
+                    <td><strong><a href="?@QueryStringConverter.OrderHelper(sessionState, "TimeZone")">时区</a></strong></td>
+                    <td><strong><a href="?@QueryStringConverter.OrderHelper(sessionState, "EmailAddress")">Email</a></strong></td>
+                    <td><strong><a href="?@QueryStringConverter.OrderHelper(sessionState, "Created")">创建时间</a></strong></td>
+                </tr>
+            </thead>
+
+            @foreach (var user in Model.Users)
+            {
+                <tr>
+                    <td><a href="@GlobalConfiguration.BasePath/Admin/Account/@user.Navigation">@user.AccountName</a></td>
+                    <td>@user.FirstName</td>
+                    <td>@user.LastName</td>
+                    <td>@user.Country</td>
+                    <td>@user.TimeZone</td>
+                    <td>@user.EmailAddress  @Html.Raw(((user.EmailConfirmed == true) ? "&check;" : ""))   </td>
+                    <td>@user.CreatedDate</td>
+                </tr>
+            }
+        </table>
+
+        @Html.Raw(ZelWiki.Library.PageSelectorGenerator.Generate(Context.Request.QueryString, Model.PaginationPageCount))
+    }
+    else
+    {
+        <div class="d-flex small text-muted mb-0">
+            <strong>
+                暂无数据
+            </strong>
+        </div>
+    }
+}
+
+<br />
+<a class="btn btn-success btn-thin" href="@GlobalConfiguration.BasePath/Admin/AddAccount">新增</a>
+
+<script>
+    window.onload = function () {
+        document.getElementById("SearchString").focus();
+    }
+</script>

ZelWiki/Views/Admin/AddAccount.cshtml

@@ -0,0 +1,166 @@
+@using ZelWiki.Models
+@model ZelWiki.Models.ViewModels.Admin.AccountProfileViewModel
+@{
+    Layout = "/Views/Shared/_Layout.cshtml";
+    var sessionState = ViewData["SessionState"] as ZelWiki.SessionState ?? throw new Exception("Wiki State Context cannot be null.");
+}
+
+<h3>
+    新增用户
+</h3>
+
+<p>
+    <br /><br />
+</p>
+
+@if (!string.IsNullOrEmpty(Model.ErrorMessage))
+{
+    <div class="alert alert-danger">@Html.Raw(Model.ErrorMessage)</div>
+}
+@if (!string.IsNullOrEmpty(Model.SuccessMessage))
+{
+    <div class="alert alert-success">@Html.Raw(Model.SuccessMessage)</div>
+}
+
+@using (Html.BeginForm(null, null, new { navigation = Model.AccountProfile.Navigation }, FormMethod.Post, true, new { action = $"{GlobalConfiguration.BasePath}{Context.Request.Path}", enctype = "multipart/form-data" }))
+{
+    @Html.AntiForgeryToken()
+
+    <div class="container">
+        <form>
+            @Html.HiddenFor(m => m.AccountProfile.Navigation)
+
+            <div class="form-group row mb-1">
+                <label for="Avatar" class="col-sm-2 col-form-label"><strong>头像</strong></label>
+                <div class="col-sm-10">
+                    <input type="file" id="Avatar" name="Avatar" class="form-control-file" onchange="fileCheck(this);" />
+                </div>
+            </div>
+
+            <div class="form-group row mb-1">
+                <label for="EmailAddress" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => m.AccountProfile.EmailAddress)</strong></label>
+                <div class="col-sm-10">
+                    @Html.TextBoxFor(m => m.AccountProfile.EmailAddress, new { @class = "form-control", placeholder = "required" })
+                    <div class="text-danger">@Html.ValidationMessageFor(m => m.AccountProfile.EmailAddress)</div>
+                </div>
+            </div>
+
+            <div class="form-group row mb-1">
+                <label for="AccountName" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => m.AccountProfile.AccountName)</strong></label>
+                <div class="col-sm-10">
+                    @Html.TextBoxFor(m => m.AccountProfile.AccountName, new { @class = "form-control", placeholder = "required" })
+                    <div class="text-danger">@Html.ValidationMessageFor(m => m.AccountProfile.AccountName)</div>
+                </div>
+            </div>
+
+            <div class="form-group row mb-1">
+                <label for="LastName" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => m.AccountProfile.LastName)</strong></label>
+                <div class="col-sm-10">
+                    @Html.TextBoxFor(m => m.AccountProfile.LastName, new { @class = "form-control", placeholder = "not required" })
+                    <div class="text-danger">@Html.ValidationMessageFor(m => m.AccountProfile.LastName)</div>
+                </div>
+            </div>
+
+            <div class="form-group row mb-1">
+                <label for="FirstName" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => m.AccountProfile.FirstName)</strong></label>
+                <div class="col-sm-10">
+                    @Html.TextBoxFor(m => m.AccountProfile.FirstName, new { @class = "form-control", placeholder = "not required" })
+                    <div class="text-danger">@Html.ValidationMessageFor(m => m.AccountProfile.FirstName)</div>
+                </div>
+            </div>
+
+            <div class="form-group row mb-1">
+                <label for="Role" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => m.AccountProfile.Role)</strong></label>
+                <div class="col-sm-10">
+                    <select name="AccountProfile.Role" id="AccountProfile.Role" class="form-control">
+                        <option value="" style="color:#ccc !important;">Select a role</option>
+                        @foreach (var item in Model.Roles)
+                        {
+                            <option value="@item.Name" selected=@(Model.AccountProfile.Role == item.Name ? "selected" : null)>
+                                @item.Name
+                            </option>
+                        }
+                    </select>
+                    <div class="text-danger">@Html.ValidationMessageFor(m => m.AccountProfile.Role)</div>
+                </div>
+            </div>
+
+            <div class="form-group row mb-1">
+                <label for="Country" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => m.AccountProfile.Country)</strong></label>
+                <div class="col-sm-10">
+                    <select name="AccountProfile.Country" id="AccountProfile.Country" class="form-control">
+                        <option value="" style="color:#ccc !important;">选择一个国家</option>
+                        @foreach (var item in Model.Countries)
+                        {
+                            <option value="@item.Value" selected=@(Model.AccountProfile.Country == item.Value ? "selected" : null)>
+                                @item.Text
+                            </option>
+                        }
+                    </select>
+                    <div class="text-danger">@Html.ValidationMessageFor(m => m.AccountProfile.Country)</div>
+                </div>
+            </div>
+
+            <div class="form-group row mb-1">
+                <label for="Language" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => m.AccountProfile.Language)</strong></label>
+                <div class="col-sm-10">
+                    <select name="AccountProfile.Language" id="AccountProfile.Language" class="form-control">
+                        <option value="" style="color:#ccc !important;">Select a language</option>
+                        @foreach (var item in Model.Languages)
+                        {
+                            <option value="@item.Value" selected=@(Model.AccountProfile.Language == item.Value ? "selected" : null)>
+                                @item.Text
+                            </option>
+                        }
+                    </select>
+                    <div class="text-danger">@Html.ValidationMessageFor(m => m.AccountProfile.Language)</div>
+                </div>
+            </div>
+
+            <div class="form-group row mb-1">
+                <label for="TimeZone" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => m.AccountProfile.TimeZone)</strong></label>
+                <div class="col-sm-10">
+                    <select name="AccountProfile.TimeZone" id="AccountProfile.TimeZone" class="form-control">
+                        <option value="" style="color:#ccc !important;">Select a time-zone</option>
+                        @foreach (var item in Model.TimeZones)
+                        {
+                            <option value="@item.Value" selected=@(Model.AccountProfile.TimeZone == item.Value ? "selected" : null)>
+                                @item.Text
+                            </option>
+                        }
+                    </select>
+                    <div class="text-danger">@Html.ValidationMessageFor(m => m.AccountProfile.TimeZone)</div>
+                </div>
+            </div>
+
+            <div class="form-group row mb-1">
+                <label for="Password" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => m.Credential.Password)</strong></label>
+                <div class="col-sm-10">
+                    @Html.PasswordFor(m => m.Credential.Password, new { @class = "form-control", value = Model.Credential.Password })
+                    <div class="text-danger">@Html.ValidationMessageFor(m => m.Credential.Password)</div>
+                </div>
+            </div>
+            <div class="form-group row mb-1">
+                <label for="ComparePassword" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => m.Credential.ComparePassword)</strong></label>
+                <div class="col-sm-10">
+                    @Html.PasswordFor(m => m.Credential.ComparePassword, new { @class = "form-control", value = Model.Credential.Password })
+                    <div class="text-danger">@Html.ValidationMessageFor(m => m.Credential.ComparePassword)</div>
+                </div>
+            </div>
+
+            <div class="form-group row mb-1">
+                <label for="Biography" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => m.AccountProfile.Biography)</strong></label>
+                <div class="col-sm-10">
+                    @Html.TextAreaFor(m => m.AccountProfile.Biography, new { @class = "form-control", style = "height:200px", Name = "Biography" })
+                    <div class="text-danger">@Html.ValidationMessageFor(m => m.AccountProfile.Biography)</div>
+                </div>
+            </div>
+
+            <div class="form-group row mb-1">
+                <div class="col-sm-10 offset-sm-2">
+                    <button type="submit" class="btn btn-success rounded-0">Save!</button>
+                </div>
+            </div>
+        </form>
+    </div>
+}

ZelWiki/Views/Admin/AddEmoji.cshtml

@@ -0,0 +1,76 @@
+@using ZelWiki.Models
+@model ZelWiki.Models.ViewModels.Admin.AddEmojiViewModel
+@{
+    Layout = "/Views/Shared/_Layout.cshtml";
+    var sessionState = ViewData["SessionState"] as ZelWiki.SessionState ?? throw new Exception("Wiki State Context cannot be null.");
+}
+
+<script type="text/javascript">
+    window.addEventListener('DOMContentLoaded', (event) => {
+
+        const imageData = document.getElementById('ImageData');
+        const categories = document.getElementById('Categories');
+        const name = document.getElementById('Name');
+
+        imageData.addEventListener('change', (event) => {
+            const selectedFile = event.target.files[0];
+            name.value = selectedFile.name.substr(0, selectedFile.name.lastIndexOf('.')).replace(/ /g, '-').replace(/_/g, '-');
+            categories.value = name.value.replace(/-/g, ',');
+        });
+    });
+</script>
+
+<h3>
+    新增 Emoji
+</h3>
+
+<p><br /><br /></p>
+
+@if (!string.IsNullOrEmpty(Model.ErrorMessage))
+{
+    <div class="alert alert-danger">@Html.Raw(Model.ErrorMessage)</div>
+}
+@if (!string.IsNullOrEmpty(Model.SuccessMessage))
+{
+    <div class="alert alert-success">@Html.Raw(Model.SuccessMessage)</div>
+}
+
+@using (Html.BeginForm(null, null, null, FormMethod.Post, true, new { action = $"{GlobalConfiguration.BasePath}{Context.Request.Path}", enctype = "multipart/form-data" }))
+{
+    @Html.AntiForgeryToken()
+    @Html.HiddenFor(model => model.OriginalName)
+    @Html.HiddenFor(model => model.Id)
+    <div class="container">
+        <form>
+            <div class="form-group row mb-1">
+                <label for="ImageData" class="col-sm-2 col-form-label"><strong>图片</strong></label>
+                <div class="col-sm-10">
+                    <input type="file" id="ImageData" name="ImageData" class="form-control-file" onchange="fileCheck(this);" accept="image/png, image/jpeg, image/gif" />
+                </div>
+            </div>
+
+            <div class="form-group row mb-1">
+                <label for="Name" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => m.Name)</strong></label>
+                <div class="col-sm-10">
+                    @Html.TextBoxFor(m => m.Name, new { @class = "form-control", placeholder = "必填项" })
+                    <div class="text-danger">@Html.ValidationMessageFor(m => m.Name)</div>
+                </div>
+            </div>
+
+            <div class="form-group row mb-1">
+                <label for="Categories" class="col-sm-2 col-form-label"><strong>@Html.LabelFor(m => m.Categories)</strong> (以英文逗号分割)</label>
+                <div class="col-sm-10">
+                    @Html.TextBoxFor(m => m.Categories, new { @class = "form-control" })
+                    <div class="text-danger">@Html.ValidationMessageFor(m => m.Categories)</div>
+                </div>
+            </div>
+
+            <div class="form-group row mb-1">
+                <div class="col-sm-10 offset-sm-2">
+                    <button type="submit" class="btn btn-success rounded-0">保存!</button>
+                </div>
+            </div>
+        </form>
+    </div>
+}
+<br />

ZelWiki/Views/Admin/CompilationStatistics.cshtml

@@ -0,0 +1,73 @@
+@model ZelWiki.Models.ViewModels.Admin.PageCompilationStatisticsViewModel
+@using ZelWiki.Library
+@using ZelWiki.Models
+@{
+    Layout = "/Views/Shared/_Layout.cshtml";
+    var sessionState = ViewData["SessionState"] as ZelWiki.SessionState ?? throw new Exception("Wiki State Context cannot be null.");
+}
+
+<h3>
+    数据统计
+</h3>
+
+<p>
+    <br /><br />
+</p>
+
+
+@if (!string.IsNullOrEmpty(Model.ErrorMessage))
+{
+    <div class="alert alert-danger">@Html.Raw(Model.ErrorMessage)</div>
+}
+@if (!string.IsNullOrEmpty(Model.SuccessMessage))
+{
+    <div class="alert alert-success">@Html.Raw(Model.SuccessMessage)</div>
+}
+
+@Html.Raw(ZelWiki.Library.ConfirmActionHelper.GenerateWarnLink(GlobalConfiguration.BasePath, 
+    "所有静态数据将会被清零,确定吗?",
+    "清楚数据", "/Admin/PurgeCompilationStatistics", Context.Request.Path.Value))
+<br />
+<br />
+
+@if (Model.Statistics.Count > 0)
+{
+    <table class="table fixedTable100 table-striped" border="0" cellspacing="0" cellpadding="0">
+        <tr>
+            <td><strong><a href="?@QueryStringConverter.OrderHelper(sessionState, "Namespace")">页面名称</a></strong></td>
+            <td><strong><a href="?@QueryStringConverter.OrderHelper(sessionState, "CreatedDate")">最近访问时间</a></strong></td>
+            <td><strong><a href="?@QueryStringConverter.OrderHelper(sessionState, "Compilations")">访问次数</a></strong></td>
+            <td><strong><a href="?@QueryStringConverter.OrderHelper(sessionState, "AvgBuildTimeMs")">耗时</a></strong></td>
+            <td><strong><a href="?@QueryStringConverter.OrderHelper(sessionState, "AvgWikiMatches")">命中数</a></strong></td>
+            <td><strong><a href="?@QueryStringConverter.OrderHelper(sessionState, "TotalErrorCount")">异常数</a></strong></td>
+            <td><strong><a href="?@QueryStringConverter.OrderHelper(sessionState, "AvgOutgoingLinkCount")">链接数</a></strong></td>
+            <td><strong><a href="?@QueryStringConverter.OrderHelper(sessionState, "AvgTagCount")">Tag数</a></strong></td>
+            <td><strong><a href="?@QueryStringConverter.OrderHelper(sessionState, "AvgRawBodySize")">原始大小</a></strong></td>
+            <td><strong><a href="?@QueryStringConverter.OrderHelper(sessionState, "AvgWikifiedBodySize")">实际大小</a></strong></td>
+        </tr>
+
+        @foreach (var stat in Model.Statistics)
+        {
+
+            <tr>
+                <td>
+                    @if (string.IsNullOrEmpty(@stat.Namespace) == false)
+                    {
+                        <text><a href="@GlobalConfiguration.BasePath/Admin/Namespace/@stat.Namespace">@stat.Namespace</a> :: </text>
+                    } <a href="@GlobalConfiguration.BasePath/@stat.Navigation">@stat.Title</a>
+                </td>
+                <td>@stat.LatestBuild</td>
+                <td>@stat.Compilations.ToString("N0")</td>
+                <td>@stat.AvgBuildTimeMs.ToString("N0")ms</td>
+                <td>@stat.AvgWikiMatches.ToString("N0")</td>
+                <td>@stat.TotalErrorCount.ToString("N0")</td>
+                <td>@stat.AvgOutgoingLinkCount.ToString("N0")</td>
+                <td>@stat.AvgTagCount.ToString("N0")</td>
+                <td>@NTDLS.Helpers.Formatters.FileSize((long)stat.AvgRawBodySize)</td>
+                <td>@NTDLS.Helpers.Formatters.FileSize((long)stat.AvgWikifiedBodySize)</td>
+            </tr>
+        }
+    </table>
+
+    @Html.Raw(ZelWiki.Library.PageSelectorGenerator.Generate(Context.Request.QueryString, Model.PaginationPageCount))
+}