517 lines
23 KiB
C#
517 lines
23 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Globalization;
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using System.IO;
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using System.Linq;
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using System.Threading;
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using System.Threading.Tasks;
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using Microsoft.AspNetCore.Mvc;
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using Microsoft.Extensions.Options;
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using Microsoft.Extensions.Logging;
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using Umbraco.Core;
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using Umbraco.Core.BackOffice;
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using Umbraco.Core.Cache;
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using Umbraco.Core.Configuration;
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using Umbraco.Core.Configuration.Grid;
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using Umbraco.Core.Configuration.Models;
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using Umbraco.Core.Hosting;
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using Umbraco.Core.Security;
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using Umbraco.Core.Serialization;
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using Umbraco.Core.Services;
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using Umbraco.Core.WebAssets;
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using Umbraco.Extensions;
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using Umbraco.Web.BackOffice.ActionResults;
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using Umbraco.Web.BackOffice.Filters;
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using Umbraco.Web.Common.Attributes;
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using Umbraco.Web.Common.Filters;
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using Umbraco.Web.Common.Security;
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using Umbraco.Web.Models;
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using Umbraco.Web.Mvc;
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using Umbraco.Web.WebAssets;
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using Constants = Umbraco.Core.Constants;
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using Microsoft.AspNetCore.Identity;
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using System.Security.Claims;
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using Microsoft.AspNetCore.Http;
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using Umbraco.Web.BackOffice.Security;
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using Umbraco.Web.Common.ActionsResults;
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using Microsoft.AspNetCore.Authorization;
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using Umbraco.Web.Common.Authorization;
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using Microsoft.AspNetCore.Authentication;
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namespace Umbraco.Web.BackOffice.Controllers
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{
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[DisableBrowserCache]
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[UmbracoRequireHttps]
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[PluginController(Constants.Web.Mvc.BackOfficeArea)]
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[IsBackOffice]
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public class BackOfficeController : UmbracoController
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{
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// NOTE: Each action must either be explicitly authorized or explicitly [AllowAnonymous], the latter is optional because
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// this controller itself doesn't require authz but it's more clear what the intention is.
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private readonly IBackOfficeUserManager _userManager;
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private readonly IRuntimeMinifier _runtimeMinifier;
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private readonly GlobalSettings _globalSettings;
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private readonly IHostingEnvironment _hostingEnvironment;
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private readonly ILocalizedTextService _textService;
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private readonly IGridConfig _gridConfig;
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private readonly BackOfficeServerVariables _backOfficeServerVariables;
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private readonly AppCaches _appCaches;
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private readonly IBackOfficeSignInManager _signInManager;
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private readonly IBackOfficeSecurityAccessor _backofficeSecurityAccessor;
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private readonly ILogger<BackOfficeController> _logger;
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private readonly IJsonSerializer _jsonSerializer;
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private readonly IBackOfficeExternalLoginProviders _externalLogins;
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private readonly IHttpContextAccessor _httpContextAccessor;
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private readonly IBackOfficeTwoFactorOptions _backOfficeTwoFactorOptions;
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public BackOfficeController(
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IBackOfficeUserManager userManager,
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IRuntimeMinifier runtimeMinifier,
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IOptions<GlobalSettings> globalSettings,
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IHostingEnvironment hostingEnvironment,
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ILocalizedTextService textService,
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IGridConfig gridConfig,
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BackOfficeServerVariables backOfficeServerVariables,
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AppCaches appCaches,
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IBackOfficeSignInManager signInManager,
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IBackOfficeSecurityAccessor backofficeSecurityAccessor,
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ILogger<BackOfficeController> logger,
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IJsonSerializer jsonSerializer,
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IBackOfficeExternalLoginProviders externalLogins,
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IHttpContextAccessor httpContextAccessor,
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IBackOfficeTwoFactorOptions backOfficeTwoFactorOptions)
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{
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_userManager = userManager;
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_runtimeMinifier = runtimeMinifier;
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_globalSettings = globalSettings.Value;
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_hostingEnvironment = hostingEnvironment;
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_textService = textService;
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_gridConfig = gridConfig ?? throw new ArgumentNullException(nameof(gridConfig));
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_backOfficeServerVariables = backOfficeServerVariables;
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_appCaches = appCaches;
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_signInManager = signInManager;
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_backofficeSecurityAccessor = backofficeSecurityAccessor;
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_logger = logger;
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_jsonSerializer = jsonSerializer;
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_externalLogins = externalLogins;
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_httpContextAccessor = httpContextAccessor;
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_backOfficeTwoFactorOptions = backOfficeTwoFactorOptions;
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}
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[HttpGet]
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[AllowAnonymous]
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public async Task<IActionResult> Default()
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{
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// force authentication to occur since this is not an authorized endpoint
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var result = await HttpContext.AuthenticateAsync(Constants.Security.BackOfficeAuthenticationType);
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var viewPath = Path.Combine(_globalSettings.UmbracoPath , Constants.Web.Mvc.BackOfficeArea, nameof(Default) + ".cshtml")
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.Replace("\\", "/"); // convert to forward slashes since it's a virtual path
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return await RenderDefaultOrProcessExternalLoginAsync(
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result,
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() => View(viewPath),
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() => View(viewPath));
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}
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[HttpGet]
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[AllowAnonymous]
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public async Task<IActionResult> VerifyInvite(string invite)
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{
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var authenticate = await HttpContext.AuthenticateAsync(Constants.Security.BackOfficeAuthenticationType);
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//if you are hitting VerifyInvite, you're already signed in as a different user, and the token is invalid
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//you'll exit on one of the return RedirectToAction(nameof(Default)) but you're still logged in so you just get
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//dumped at the default admin view with no detail
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if (authenticate.Succeeded)
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{
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await _signInManager.SignOutAsync();
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}
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if (invite == null)
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{
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_logger.LogWarning("VerifyUser endpoint reached with invalid token: NULL");
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return RedirectToAction(nameof(Default));
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}
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var parts = System.Net.WebUtility.UrlDecode(invite).Split('|');
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if (parts.Length != 2)
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{
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_logger.LogWarning("VerifyUser endpoint reached with invalid token: {Invite}", invite);
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return RedirectToAction(nameof(Default));
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}
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var token = parts[1];
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var decoded = token.FromUrlBase64();
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if (decoded.IsNullOrWhiteSpace())
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{
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_logger.LogWarning("VerifyUser endpoint reached with invalid token: {Invite}", invite);
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return RedirectToAction(nameof(Default));
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}
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var id = parts[0];
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var identityUser = await _userManager.FindByIdAsync(id);
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if (identityUser == null)
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{
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_logger.LogWarning("VerifyUser endpoint reached with non existing user: {UserId}", id);
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return RedirectToAction(nameof(Default));
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}
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var result = await _userManager.ConfirmEmailAsync(identityUser, decoded);
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if (result.Succeeded == false)
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{
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_logger.LogWarning("Could not verify email, Error: {Errors}, Token: {Invite}", result.Errors.ToErrorMessage(), invite);
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return new RedirectResult(Url.Action(nameof(Default)) + "#/login/false?invite=3");
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}
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//sign the user in
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DateTime? previousLastLoginDate = identityUser.LastLoginDateUtc;
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await _signInManager.SignInAsync(identityUser, false);
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//reset the lastlogindate back to previous as the user hasn't actually logged in, to add a flag or similar to BackOfficeSignInManager would be a breaking change
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identityUser.LastLoginDateUtc = previousLastLoginDate;
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await _userManager.UpdateAsync(identityUser);
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return new RedirectResult(Url.Action(nameof(Default)) + "#/login/false?invite=1");
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}
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/// <summary>
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/// This Action is used by the installer when an upgrade is detected but the admin user is not logged in. We need to
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/// ensure the user is authenticated before the install takes place so we redirect here to show the standard login screen.
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/// </summary>
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/// <returns></returns>
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[HttpGet]
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[StatusCodeResult(System.Net.HttpStatusCode.ServiceUnavailable)]
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[AllowAnonymous]
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public async Task<IActionResult> AuthorizeUpgrade()
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{
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// force authentication to occur since this is not an authorized endpoint
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var result = await HttpContext.AuthenticateAsync(Constants.Security.BackOfficeAuthenticationType);
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var viewPath = Path.Combine(_globalSettings.UmbracoPath, Constants.Web.Mvc.BackOfficeArea, nameof(AuthorizeUpgrade) + ".cshtml");
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return await RenderDefaultOrProcessExternalLoginAsync(
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result,
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//The default view to render when there is no external login info or errors
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() => View(viewPath),
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//The IActionResult to perform if external login is successful
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() => Redirect("/"));
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}
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/// <summary>
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/// Returns the JavaScript main file including all references found in manifests
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/// </summary>
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/// <returns></returns>
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[MinifyJavaScriptResult(Order = 0)]
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[HttpGet]
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[AllowAnonymous]
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public async Task<IActionResult> Application()
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{
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var result = await _runtimeMinifier.GetScriptForLoadingBackOfficeAsync(_globalSettings, _hostingEnvironment);
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return new JavaScriptResult(result);
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}
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/// <summary>
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/// Get the json localized text for a given culture or the culture for the current user
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/// </summary>
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/// <param name="culture"></param>
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/// <returns></returns>
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[HttpGet]
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[AllowAnonymous]
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public Dictionary<string, Dictionary<string, string>> LocalizedText(string culture = null)
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{
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var isAuthenticated = _backofficeSecurityAccessor.BackOfficeSecurity.IsAuthenticated();
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var cultureInfo = string.IsNullOrWhiteSpace(culture)
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//if the user is logged in, get their culture, otherwise default to 'en'
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? isAuthenticated
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//current culture is set at the very beginning of each request
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? Thread.CurrentThread.CurrentCulture
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: CultureInfo.GetCultureInfo(_globalSettings.DefaultUILanguage)
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: CultureInfo.GetCultureInfo(culture);
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var allValues = _textService.GetAllStoredValues(cultureInfo);
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var pathedValues = allValues.Select(kv =>
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{
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var slashIndex = kv.Key.IndexOf('/');
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var areaAlias = kv.Key.Substring(0, slashIndex);
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var valueAlias = kv.Key.Substring(slashIndex + 1);
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return new
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{
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areaAlias,
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valueAlias,
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value = kv.Value
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};
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});
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var nestedDictionary = pathedValues
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.GroupBy(pv => pv.areaAlias)
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.ToDictionary(pv => pv.Key, pv =>
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pv.ToDictionary(pve => pve.valueAlias, pve => pve.value));
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return nestedDictionary;
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}
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[Authorize(Policy = AuthorizationPolicies.BackOfficeAccess)]
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[HttpGet]
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public IEnumerable<IGridEditorConfig> GetGridConfig()
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{
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return _gridConfig.EditorsConfig.Editors;
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}
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/// <summary>
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/// Returns the JavaScript object representing the static server variables javascript object
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/// </summary>
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/// <returns></returns>
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[Authorize(Policy = AuthorizationPolicies.BackOfficeAccess)]
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[MinifyJavaScriptResult(Order = 1)]
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public async Task<JavaScriptResult> ServerVariables()
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{
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//cache the result if debugging is disabled
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var serverVars = ServerVariablesParser.Parse(await _backOfficeServerVariables.GetServerVariablesAsync());
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var result = _hostingEnvironment.IsDebugMode
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? serverVars
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: _appCaches.RuntimeCache.GetCacheItem<string>(
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typeof(BackOfficeController) + "ServerVariables",
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() => serverVars,
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new TimeSpan(0, 10, 0));
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return new JavaScriptResult(result);
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}
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[HttpPost]
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[AllowAnonymous]
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public ActionResult ExternalLogin(string provider, string redirectUrl = null)
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{
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if (redirectUrl == null)
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{
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redirectUrl = Url.Action(nameof(Default), this.GetControllerName());
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}
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// Configures the redirect URL and user identifier for the specified external login
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var properties = _signInManager.ConfigureExternalAuthenticationProperties(provider, redirectUrl);
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return Challenge(properties, provider);
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}
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/// <summary>
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/// Called when a user links an external login provider in the back office
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/// </summary>
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/// <param name="provider"></param>
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/// <returns></returns>
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[Authorize(Policy = AuthorizationPolicies.BackOfficeAccess)]
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[HttpPost]
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public ActionResult LinkLogin(string provider)
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{
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// Request a redirect to the external login provider to link a login for the current user
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var redirectUrl = Url.Action(nameof(ExternalLinkLoginCallback), this.GetControllerName());
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// Configures the redirect URL and user identifier for the specified external login including xsrf data
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var properties = _signInManager.ConfigureExternalAuthenticationProperties(provider, redirectUrl, _userManager.GetUserId(User));
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return Challenge(properties, provider);
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}
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[HttpGet]
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[AllowAnonymous]
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public async Task<IActionResult> ValidatePasswordResetCode([Bind(Prefix = "u")]int userId, [Bind(Prefix = "r")]string resetCode)
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{
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var user = await _userManager.FindByIdAsync(userId.ToString());
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if (user != null)
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{
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var result = await _userManager.VerifyUserTokenAsync(user, "Default", "ResetPassword", resetCode);
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if (result)
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{
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//Add a flag and redirect for it to be displayed
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TempData[ViewDataExtensions.TokenPasswordResetCode] = _jsonSerializer.Serialize(new ValidatePasswordResetCodeModel { UserId = userId, ResetCode = resetCode });
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return RedirectToLocal(Url.Action(nameof(Default), this.GetControllerName()));
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}
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}
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//Add error and redirect for it to be displayed
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TempData[ViewDataExtensions.TokenPasswordResetCode] = new[] { _textService.Localize("login/resetCodeExpired") };
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return RedirectToLocal(Url.Action(nameof(Default), this.GetControllerName()));
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}
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/// <summary>
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/// Callback path when the user initiates a link login request from the back office to the external provider from the <see cref="LinkLogin(string)"/> action
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/// </summary>
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[Authorize(Policy = AuthorizationPolicies.BackOfficeAccess)]
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[HttpGet]
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public async Task<IActionResult> ExternalLinkLoginCallback()
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{
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var user = await _userManager.GetUserAsync(User);
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if (user == null)
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{
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// ... this should really not happen
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TempData[ViewDataExtensions.TokenExternalSignInError] = new[] { "Local user does not exist" };
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return RedirectToLocal(Url.Action(nameof(Default), this.GetControllerName()));
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}
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var loginInfo = await _signInManager.GetExternalLoginInfoAsync(await _userManager.GetUserIdAsync(user));
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if (loginInfo == null)
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{
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//Add error and redirect for it to be displayed
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TempData[ViewDataExtensions.TokenExternalSignInError] = new[] { "An error occurred, could not get external login info" };
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return RedirectToLocal(Url.Action(nameof(Default), this.GetControllerName()));
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}
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var addLoginResult = await _userManager.AddLoginAsync(user, loginInfo);
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if (addLoginResult.Succeeded)
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{
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// Update any authentication tokens if login succeeded
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// TODO: This is a new thing that we need to implement and because we can store data with the external login now, this is exactly
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// what this is for but we'll need to peek under the code here to figure out exactly what goes on.
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//await _signInManager.UpdateExternalAuthenticationTokensAsync(loginInfo);
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return RedirectToLocal(Url.Action(nameof(Default), this.GetControllerName()));
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}
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//Add errors and redirect for it to be displayed
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TempData[ViewDataExtensions.TokenExternalSignInError] = addLoginResult.Errors;
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return RedirectToLocal(Url.Action(nameof(Default), this.GetControllerName()));
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}
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/// <summary>
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/// Used by Default and AuthorizeUpgrade to render as per normal if there's no external login info,
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/// otherwise process the external login info.
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/// </summary>
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/// <returns></returns>
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private async Task<IActionResult> RenderDefaultOrProcessExternalLoginAsync(
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AuthenticateResult authenticateResult,
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Func<IActionResult> defaultResponse,
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Func<IActionResult> externalSignInResponse)
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{
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if (defaultResponse is null) throw new ArgumentNullException(nameof(defaultResponse));
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if (externalSignInResponse is null) throw new ArgumentNullException(nameof(externalSignInResponse));
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ViewData.SetUmbracoPath(_globalSettings.GetUmbracoMvcArea(_hostingEnvironment));
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//check if there is the TempData or cookies with the any token name specified, if so, assign to view bag and render the view
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if (ViewData.FromBase64CookieData<BackOfficeExternalLoginProviderErrors>(_httpContextAccessor.HttpContext, ViewDataExtensions.TokenExternalSignInError, _jsonSerializer) ||
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ViewData.FromTempData(TempData, ViewDataExtensions.TokenExternalSignInError) ||
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ViewData.FromTempData(TempData, ViewDataExtensions.TokenPasswordResetCode))
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return defaultResponse();
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//First check if there's external login info, if there's not proceed as normal
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var loginInfo = await _signInManager.GetExternalLoginInfoAsync();
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if (loginInfo == null || loginInfo.Principal == null)
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{
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// if the user is not logged in, check if there's any auto login redirects specified
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if (!authenticateResult.Succeeded)
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{
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var oauthRedirectAuthProvider = _externalLogins.GetAutoLoginProvider();
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if (!oauthRedirectAuthProvider.IsNullOrWhiteSpace())
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{
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return ExternalLogin(oauthRedirectAuthProvider);
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}
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}
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return defaultResponse();
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}
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//we're just logging in with an external source, not linking accounts
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return await ExternalSignInAsync(loginInfo, externalSignInResponse);
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}
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private async Task<IActionResult> ExternalSignInAsync(ExternalLoginInfo loginInfo, Func<IActionResult> response)
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{
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if (loginInfo == null) throw new ArgumentNullException(nameof(loginInfo));
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if (response == null) throw new ArgumentNullException(nameof(response));
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// Sign in the user with this external login provider (which auto links, etc...)
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var result = await _signInManager.ExternalLoginSignInAsync(loginInfo, isPersistent: false);
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var errors = new List<string>();
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if (result == Microsoft.AspNetCore.Identity.SignInResult.Success)
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{
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}
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else if (result == Microsoft.AspNetCore.Identity.SignInResult.TwoFactorRequired)
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{
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var attemptedUser = await _userManager.FindByLoginAsync(loginInfo.LoginProvider, loginInfo.ProviderKey);
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if (attemptedUser == null)
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{
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return new ValidationErrorResult($"No local user found for the login provider {loginInfo.LoginProvider} - {loginInfo.ProviderKey}");
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}
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var twofactorView = _backOfficeTwoFactorOptions.GetTwoFactorView(attemptedUser.UserName);
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if (twofactorView.IsNullOrWhiteSpace())
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{
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return new ValidationErrorResult($"The registered {typeof(IBackOfficeTwoFactorOptions)} of type {_backOfficeTwoFactorOptions.GetType()} did not return a view for two factor auth ");
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}
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// create a with information to display a custom two factor send code view
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var verifyResponse = new ObjectResult(new
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{
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twoFactorView = twofactorView,
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userId = attemptedUser.Id
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})
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{
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StatusCode = StatusCodes.Status402PaymentRequired
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};
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return verifyResponse;
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}
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else if (result == Microsoft.AspNetCore.Identity.SignInResult.LockedOut)
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{
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errors.Add($"The local user {loginInfo.Principal.Identity.Name} for the external provider {loginInfo.ProviderDisplayName} is locked out.");
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}
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else if (result == Microsoft.AspNetCore.Identity.SignInResult.NotAllowed)
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{
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// This occurs when SignInManager.CanSignInAsync fails which is when RequireConfirmedEmail , RequireConfirmedPhoneNumber or RequireConfirmedAccount fails
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// however since we don't enforce those rules (yet) this shouldn't happen.
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errors.Add($"The user {loginInfo.Principal.Identity.Name} for the external provider {loginInfo.ProviderDisplayName} has not confirmed their details and cannot sign in.");
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}
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else if (result == Microsoft.AspNetCore.Identity.SignInResult.Failed)
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{
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// Failed only occurs when the user does not exist
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errors.Add("The requested provider (" + loginInfo.LoginProvider + ") has not been linked to an account, the provider must be linked from the back office.");
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}
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else if (result == AutoLinkSignInResult.FailedNotLinked)
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{
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errors.Add("The requested provider (" + loginInfo.LoginProvider + ") has not been linked to an account, the provider must be linked from the back office.");
|
|
}
|
|
else if (result == AutoLinkSignInResult.FailedNoEmail)
|
|
{
|
|
errors.Add($"The requested provider ({loginInfo.LoginProvider}) has not provided the email claim {ClaimTypes.Email}, the account cannot be linked.");
|
|
}
|
|
else if (result is AutoLinkSignInResult autoLinkSignInResult && autoLinkSignInResult.Errors.Count > 0)
|
|
{
|
|
errors.AddRange(autoLinkSignInResult.Errors);
|
|
}
|
|
|
|
if (errors.Count > 0)
|
|
{
|
|
ViewData.SetExternalSignInProviderErrors(
|
|
new BackOfficeExternalLoginProviderErrors(
|
|
loginInfo.LoginProvider,
|
|
errors));
|
|
}
|
|
|
|
return response();
|
|
}
|
|
|
|
private IActionResult RedirectToLocal(string returnUrl)
|
|
{
|
|
if (Url.IsLocalUrl(returnUrl))
|
|
{
|
|
return Redirect(returnUrl);
|
|
}
|
|
return Redirect("/");
|
|
}
|
|
|
|
|
|
}
|
|
}
|