200 lines
7.3 KiB
C#
200 lines
7.3 KiB
C#
/*
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*
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* (c) Copyright Ascensio System Limited 2010-2018
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*
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* This program is freeware. You can redistribute it and/or modify it under the terms of the GNU
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* General Public License (GPL) version 3 as published by the Free Software Foundation (https://www.gnu.org/copyleft/gpl.html).
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* In accordance with Section 7(a) of the GNU GPL its Section 15 shall be amended to the effect that
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* Ascensio System SIA expressly excludes the warranty of non-infringement of any third-party rights.
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*
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* THIS PROGRAM IS DISTRIBUTED WITHOUT ANY WARRANTY; WITHOUT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY OR
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* FITNESS FOR A PARTICULAR PURPOSE. For more details, see GNU GPL at https://www.gnu.org/copyleft/gpl.html
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*
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* You can contact Ascensio System SIA by email at sales@onlyoffice.com
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*
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* The interactive user interfaces in modified source and object code versions of ONLYOFFICE must display
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* Appropriate Legal Notices, as required under Section 5 of the GNU GPL version 3.
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*
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* Pursuant to Section 7 § 3(b) of the GNU GPL you must retain the original ONLYOFFICE logo which contains
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* relevant author attributions when distributing the software. If the display of the logo in its graphic
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* form is not reasonably feasible for technical reasons, you must include the words "Powered by ONLYOFFICE"
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* in every copy of the program you distribute.
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* Pursuant to Section 7 § 3(e) we decline to grant you any rights under trademark law for use of our trademarks.
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*
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*/
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using JsonSerializer = System.Text.Json.JsonSerializer;
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namespace ASC.FederatedLogin;
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[Scope]
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public class Login
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{
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public bool IsReusable => false;
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protected string Callback => _params.Get("callback") ?? "loginCallback";
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protected string Auth => _params.Get("auth");
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protected string ReturnUrl => _params.Get("returnurl"); //TODO?? FormsAuthentication.LoginUrl;
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protected LoginMode Mode
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{
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get
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{
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if (!string.IsNullOrEmpty(_params.Get("mode")))
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{
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return (LoginMode)Enum.Parse(typeof(LoginMode), _params.Get("mode"), true);
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}
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return LoginMode.Popup;
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}
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}
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protected bool Minimal
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{
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get
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{
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if (_params.ContainsKey("min"))
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{
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bool.TryParse(_params.Get("min"), out var result);
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return result;
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}
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return false;
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}
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}
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private Dictionary<string, string> _params;
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private readonly IWebHostEnvironment _webHostEnvironment;
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private readonly IMemoryCache _memoryCache;
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private readonly Signature _signature;
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private readonly InstanceCrypto _instanceCrypto;
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private readonly ProviderManager _providerManager;
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public Login(
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IWebHostEnvironment webHostEnvironment,
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IMemoryCache memoryCache,
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Signature signature,
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InstanceCrypto instanceCrypto,
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ProviderManager providerManager)
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{
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_webHostEnvironment = webHostEnvironment;
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_memoryCache = memoryCache;
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_signature = signature;
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_instanceCrypto = instanceCrypto;
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_providerManager = providerManager;
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}
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public async Task InvokeAsync(HttpContext context)
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{
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_ = context.PushRewritenUri();
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if (string.IsNullOrEmpty(context.Request.Query["p"]))
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{
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_params = new Dictionary<string, string>(context.Request.Query.Count);
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//Form params and redirect
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foreach (var key in context.Request.Query.Keys)
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{
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_params.Add(key, context.Request.Query[key]);
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}
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//Pack and redirect
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var uriBuilder = new UriBuilder(context.Request.GetUrlRewriter());
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var token = WebEncoders.Base64UrlEncode(Encoding.UTF8.GetBytes(JsonSerializer.Serialize(_params)));
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uriBuilder.Query = "p=" + token;
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context.Response.Redirect(uriBuilder.Uri.ToString(), true);
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await context.Response.CompleteAsync();
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return;
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}
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else
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{
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_params = JsonSerializer.Deserialize<Dictionary<string, string>>(Encoding.UTF8.GetString(WebEncoders.Base64UrlDecode(context.Request.Query["p"])));
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}
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if (!string.IsNullOrEmpty(Auth))
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{
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try
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{
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var desktop = _params.ContainsKey("desktop") && _params["desktop"] == "true";
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IDictionary<string, string> additionalStateArgs = null;
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if (desktop)
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{
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additionalStateArgs = context.Request.Query.ToDictionary(r => r.Key, r => r.Value.FirstOrDefault());
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if (!additionalStateArgs.ContainsKey("desktop"))
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{
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additionalStateArgs.Add("desktop", "true");
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}
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}
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var profile = _providerManager.Process(Auth, context, null, additionalStateArgs);
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if (profile != null)
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{
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await SendJsCallbackAsync(context, profile);
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}
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}
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catch (ThreadAbortException)
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{
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//Thats is responce ending
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}
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catch (Exception ex)
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{
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await SendJsCallbackAsync(context, LoginProfile.FromError(_signature, _instanceCrypto, ex));
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}
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}
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else
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{
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//Render xrds
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await RenderXrdsAsync(context);
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}
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context.PopRewritenUri();
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}
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private async Task RenderXrdsAsync(HttpContext context)
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{
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var xrdsloginuri = new Uri(context.Request.GetUrlRewriter(), new Uri(context.Request.GetUrlRewriter().AbsolutePath, UriKind.Relative)) + "?auth=openid&returnurl=" + ReturnUrl;
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var xrdsimageuri = new Uri(context.Request.GetUrlRewriter(), new Uri(_webHostEnvironment.WebRootPath, UriKind.Relative)) + "openid.gif";
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await XrdsHelper.RenderXrdsAsync(context.Response, xrdsloginuri, xrdsimageuri);
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}
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private async Task SendJsCallbackAsync(HttpContext context, LoginProfile profile)
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{
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//Render a page
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context.Response.ContentType = "text/html";
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await context.Response.WriteAsync(
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JsCallbackHelper.GetCallbackPage()
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.Replace("%PROFILE%", $"\"{profile.Serialized}\"")
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.Replace("%CALLBACK%", Callback)
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.Replace("%DESKTOP%", (Mode == LoginMode.Redirect).ToString().ToLowerInvariant())
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);
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}
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}
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public class LoginHandler
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{
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private readonly RequestDelegate _next;
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private readonly IServiceScopeFactory _serviceScopeFactory;
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public LoginHandler(RequestDelegate next, IServiceScopeFactory serviceScopeFactory)
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{
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_next = next;
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_serviceScopeFactory = serviceScopeFactory;
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}
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public async Task InvokeAsync(HttpContext context)
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{
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using var scope = _serviceScopeFactory.CreateScope();
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var login = scope.ServiceProvider.GetService<Login>();
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await login.InvokeAsync(context);
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}
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}
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public static class LoginHandlerExtensions
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{
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public static IApplicationBuilder UseLoginHandler(this IApplicationBuilder builder)
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{
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return builder.UseMiddleware<LoginHandler>();
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}
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}
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