我开发了以下适合我的解决方案，我正在分享它以防它对其他人有所帮助，但我真的很想看看是否有更直接的方法或“最佳实践”我错过了。
基本上，您需要实现一个OpenIdClient用 a 初始化的 a ProviderIdentifier，它的 URL 包含关键字__username__。
在运行时，将提供者名称和用户名传递给Account控制器，其中提供者客户端通过名称选择，并在__username__向提供者发送身份验证请求之前将用户名替换为关键字。
OpenID 客户端
Microsoft 贡献的 DotNetOpenAuth OpenID 提供程序类继承了基类DotNetOpenAuth.AspNet.Clients.OpenIdClient，它实现了IAuthenticationClientOpenID 提供程序类所需的接口。从Google 提供者的源代码开始，因为它有一个直接的实现，对其进行自定义以创建一个GenericOpenIdClient与使用自定义 URL 的提供者一起工作的类。
要在运行时创建自定义 URL，我们将接受 OpenID 用户名作为 URI 片段，并将__username__URL 中的所有实例替换为用户提交的用户名。Providers 需要在应用程序启动时注册 URL，所以我们不能只在用户名已知的情况下在运行时注册一个 provider URL。
我们将使用 OpenID Selector 将表单提交给Account控制器的ExternalLogin操作，provider表单值设置为提供者名称和用户名，格式为provider;{username}。OpenId Selector 具有内置逻辑，可以{username}用来自呈现给用户的文本框的输入替换所有实例。在服务器端，我们将提供者名称与用户名分开，根据名称从应用程序启动时注册的提供者中查找提供者，并将GenericOpenIdClient.UserName属性设置为用户提交的用户名。
当创建身份验证请求以发送到 OpenID 提供者时，我们将检查该GenericOpenIdClient.UserName属性，如果设置，我们将在发送请求之前使用用户名重新创建提供者 URL。为此，我们需要RequestAuthentication()使用我们的自定义 URL 覆盖创建身份验证请求的方法。__username__使用而不是{username}这里，因为{and}不是主机名的有效字符，因此当我们需要将它们注册为通用提供程序标识符时，创建包含它们的 URL 会变得有问题。
/GenericOpenIdClient.cs
namespace DotNetOpenAuth.AspNet.Clients
{
using System;
using System.Collections.Generic;
using System.Web;
using System.Xml.Linq;
using DotNetOpenAuth.OpenId;
using DotNetOpenAuth.OpenId.Extensions.AttributeExchange;
using DotNetOpenAuth.OpenId.RelyingParty;
public class GenericOpenIdClient : OpenIdClient
{
#region Constants and Fields
/// <summary>
/// The openid relying party.
/// </summary>
/// <remarks>
/// Pass null as applicationStore to specify dumb mode. Create a protected field to use internally; we can't access the private base class field.
/// </remarks>
protected static readonly OpenIdRelyingParty RelyingParty = new OpenIdRelyingParty(applicationStore: null);
/// <summary>
/// The provider identifier.
/// </summary>
/// <remarks>
/// Create a protected field to use internally; we can't access the private base class field.
/// </remarks>
protected readonly Identifier providerIdentifier;
#endregion
#region Constructors and Destructors
public GenericOpenIdClient(string providerName, Identifier providerIdentifier)
: base(providerName, providerIdentifier)
{
this.providerIdentifier = providerIdentifier; // initialize our internal field as well
}
#endregion
#region Public Properties
public String UserName { get; set; }
#endregion
#region Protected Properties
/// <summary>
/// The provider Identifier with the "__username__" keyword replaced with the value of the UserName property.
/// </summary>
protected Identifier ProviderIdentifier
{
get
{
var customIdentifier = String.IsNullOrWhiteSpace(this.UserName) ?
this.providerIdentifier :
Identifier.Parse(HttpUtility.UrlDecode(this.providerIdentifier).Replace("__username__", this.UserName));
return customIdentifier;
}
}
#endregion
#region Methods
/// <summary>
/// Gets the extra data obtained from the response message when authentication is successful.
/// </summary>
/// <param name="response">
/// The response message.
/// </param>
/// <returns>A dictionary of profile data; or null if no data is available.</returns>
protected override Dictionary<string, string> GetExtraData(IAuthenticationResponse response)
{
FetchResponse fetchResponse = response.GetExtension<FetchResponse>();
if (fetchResponse != null)
{
var extraData = new Dictionary<string, string>();
extraData.AddItemIfNotEmpty("email", fetchResponse.GetAttributeValue(WellKnownAttributes.Contact.Email));
extraData.AddItemIfNotEmpty("country", fetchResponse.GetAttributeValue(WellKnownAttributes.Contact.HomeAddress.Country));
extraData.AddItemIfNotEmpty("firstName", fetchResponse.GetAttributeValue(WellKnownAttributes.Name.First));
extraData.AddItemIfNotEmpty("lastName", fetchResponse.GetAttributeValue(WellKnownAttributes.Name.Last));
return extraData;
}
return null;
}
public override void RequestAuthentication(HttpContextBase context, Uri returnUrl)
{
var realm = new Realm(returnUrl.GetComponents(UriComponents.SchemeAndServer, UriFormat.Unescaped));
IAuthenticationRequest request = RelyingParty.CreateRequest(ProviderIdentifier, realm, returnUrl);
// give subclasses a chance to modify request message, e.g. add extension attributes, etc.
this.OnBeforeSendingAuthenticationRequest(request);
request.RedirectToProvider();
}
/// <summary>
/// Called just before the authentication request is sent to service provider.
/// </summary>
/// <param name="request">
/// The request.
/// </param>
protected override void OnBeforeSendingAuthenticationRequest(IAuthenticationRequest request)
{
// Attribute Exchange extensions
var fetchRequest = new FetchRequest();
fetchRequest.Attributes.AddRequired(WellKnownAttributes.Contact.Email);
fetchRequest.Attributes.AddOptional(WellKnownAttributes.Contact.HomeAddress.Country);
fetchRequest.Attributes.AddRequired(WellKnownAttributes.Name.First);
fetchRequest.Attributes.AddRequired(WellKnownAttributes.Name.Last);
request.AddExtension(fetchRequest);
}
#endregion
}
/// <summary>
/// The dictionary extensions.
/// </summary>
internal static class DictionaryExtensions
{
/// <summary>
/// Adds the value from an XDocument with the specified element name if it's not empty.
/// </summary>
/// <param name="dictionary">
/// The dictionary.
/// </param>
/// <param name="document">
/// The document.
/// </param>
/// <param name="elementName">
/// Name of the element.
/// </param>
public static void AddDataIfNotEmpty(
this Dictionary<string, string> dictionary, XDocument document, string elementName)
{
var element = document.Root.Element(elementName);
if (element != null)
{
dictionary.AddItemIfNotEmpty(elementName, element.Value);
}
}
/// <summary>
/// Adds a key/value pair to the specified dictionary if the value is not null or empty.
/// </summary>
/// <param name="dictionary">
/// The dictionary.
/// </param>
/// <param name="key">
/// The key.
/// </param>
/// <param name="value">
/// The value.
/// </param>
public static void AddItemIfNotEmpty(this IDictionary<string, string> dictionary, string key, string value)
{
if (key == null)
{
throw new ArgumentNullException("key");
}
if (!string.IsNullOrEmpty(value))
{
dictionary[key] = value;
}
}
}
}
要注册 Microsoft 提供的新 DotNetOpenAuth 类中内置的提供程序，请取消注释现有的 Microsoft、Facebook、Twitter 和 Google 提供程序，并添加一个调用以注册内置的 Yahoo 提供程序。我们即将实现的 OpenID 提供者不需要密钥，但如果您想使用它们，则需要从 OAuth 提供者（Microsoft、Facebook 和 Twitter）获取密钥。您可以根据自己的喜好添加 OpenID 选择器包中可用的其他提供程序。
/App_Start/AuthConfig.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using DotNetOpenAuth.AspNet.Clients;
using DotNetOpenAuth.OpenId.RelyingParty;
using Microsoft.Web.WebPages.OAuth;
using Mvc4ApplicationOpenAuth.Models;
namespace Mvc4ApplicationOpenAuth
{
public static class AuthConfig
{
public static void RegisterAuth()
{
// To let users of this site log in using their accounts from other sites such as Microsoft, Facebook, and Twitter,
// you must update this site. For more information visit http://go.microsoft.com/fwlink/?LinkID=252166
//OAuthWebSecurity.RegisterMicrosoftClient(
// clientId: "",
// clientSecret: "");
//OAuthWebSecurity.RegisterTwitterClient(
// consumerKey: "",
// consumerSecret: "");
//OAuthWebSecurity.RegisterFacebookClient(
// appId: "",
// appSecret: "");
OAuthWebSecurity.RegisterGoogleClient();
OAuthWebSecurity.RegisterYahooClient();
OAuthWebSecurity.RegisterClient(new GenericOpenIdClient("Aol", "https://openid.aol.com/__username__"), "Aol", new Dictionary());
OAuthWebSecurity.RegisterClient(new GenericOpenIdClient("LiveJournal", "https://__username__.livejournal.com/"), "LiveJournal", new Dictionary());
OAuthWebSecurity.RegisterClient(new GenericOpenIdClient("WordPress", "https://__username__.wordpress.com/"), "WordPress", new Dictionary());
OAuthWebSecurity.RegisterClient(new GenericOpenIdClient("Blogger", "https://__username__.blogspot.com/"), "Blogger", new Dictionary());
OAuthWebSecurity.RegisterClient(new GenericOpenIdClient("VeriSign", "https://__username__.pip.verisignlabs.com/"), "VeriSign", new Dictionary());
OAuthWebSecurity.RegisterClient(new GenericOpenIdClient("ClaimID", "https://claimid.com/__username__"), "ClaimID", new Dictionary());
OAuthWebSecurity.RegisterClient(new GenericOpenIdClient("ClickPass", "https://clickpass.com/public/__username__"), "ClickPass", new Dictionary());
OAuthWebSecurity.RegisterClient(new GenericOpenIdClient("Google Profile", "https://www.google.com/profiles/__username__"), "Google Profile", new Dictionary());
OAuthWebSecurity.RegisterClient(new GenericOpenIdClient("MyOpenID", "https://__username__.myopenid.com/"), "MyOpenID", new Dictionary());
}
}
}
最后，我们需要通过 OpenID Selector 解析提交给Account控制器ExternalLogin操作的提供者表单值，以检查“;” 指示用户名的分隔符存在。如果是这样，那么我们解析出提供者名称和用户名。
/控制器/AccountController.cs
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public ActionResult ExternalLogin(string provider, string returnUrl)
{
if (provider.Contains(';'))
{
string[] providerParts = provider.Split(';');
if (providerParts.Length == 2)
{
AuthenticationClientData clientData;
if (OAuthWebSecurity.TryGetOAuthClientData(providerParts[0], out clientData))
{
var genericClient = clientData.AuthenticationClient as GenericOpenIdClient;
if (genericClient != null)
{
provider = providerParts[0];
genericClient.UserName = providerParts[1];
}
}
}
}
return new ExternalLoginResult(provider, Url.Action("ExternalLoginCallback", new { ReturnUrl = returnUrl }));
}
用户界面
使用开源 OpenID 选择器可以更轻松地实现 UI。下载 OpenID Selector并对其进行自定义以与OAuthWebSecurity类一起使用。
openid在您的 Web 应用程序中创建一个新文件夹：/Content/openid- 将下载的
css、images、images.large和images.small文件夹
复制openid-selector到该/Content/openid文件夹，然后将文件包含在您的项目中。
- 从 openid-selector 下载的
js文件夹中，复制openid-jquery.js并复制openid-en.js到您的 Web 应用程序的/Scripts文件夹中，然后将文件包含在您的项目中。
- 打开
openid-en.js文件并对其进行自定义，以便提供程序 URL 是您将添加到AuthConfig.cs文件中的提供程序名称。对于具有自定义 URL 的提供商，请使用以下格式Provider;{username}：
/Scripts/openid-en.js
var providers_large = {
google : {
name : 'Google',
url : 'Google'
},
facebook : {
name : 'Facebook',
url : 'Facebook',
},
twitter: {
name: 'Twitter',
url: 'Twitter'
},
microsoft : {
name : 'Microsoft',
url : 'Microsoft'
},
yahoo : {
name : 'Yahoo',
url : 'Yahoo'
},
aol : {
name : 'Aol',
label : 'Enter your Aol screenname.',
url : 'Aol;{username}'
}
};
var providers_small = {
livejournal: {
name : 'LiveJournal',
label : 'Enter your Livejournal username.',
url: 'LiveJournal;{username}'
},
wordpress : {
name : 'WordPress',
label : 'Enter your WordPress.com username.',
url: 'WordPress;{username}'
},
blogger : {
name : 'Blogger',
label : 'Your Blogger account',
url: 'Blogger;{username}'
},
verisign : {
name : 'VeriSign',
label : 'Your VeriSign username',
url: 'VeriSign;{username}'
},
claimid : {
name : 'ClaimID',
label : 'Your ClaimID username',
url: 'ClaimID;{username}'
},
clickpass : {
name : 'ClickPass',
label : 'Enter your ClickPass username',
url: 'ClickPass;{username}'
},
google_profile : {
name : 'Google Profile',
label : 'Enter your Google Profile username',
url: 'Google Profile;{username}'
},
myopenid: {
name: 'MyOpenID',
label: 'Enter your MyOpenID username.',
url: 'MyOpenID;{username}'
}
};
openid.locale = 'en';
openid.sprite = 'en'; // reused in german& japan localization
openid.demo_text = 'In client demo mode. Normally would have submitted OpenID:';
openid.signin_text = 'Log in';
openid.image_title = 'Log in with {provider}';
openid.no_sprite = true;
openid.img_path = '/Content/openid/images/';
OpenID Selector 不附带 Microsoft 或 Twitter 的图像，因此请下载您最喜欢的Microsoft和Twitter（白底蓝）徽标，将它们转换为 100x60 像素的 GIF，然后将它们放入/Content/openid/images.large文件夹中。README.txt如果您想使用单个精灵图像而不是单独的图像，请阅读 OpenID 选择器文件中的说明。如果您使用精灵，请设置openid.no_sprite = false;。openid-en.js
将 JS 和 CSS 文件注册为新包。在方法中打开/App_Start/BundleConfig.cs并添加以下脚本和样式包RegisterBundles()。
/App_Start/BundleConfig.cs
bundles.Add(new ScriptBundle("~/bundles/openid").Include(
"~/Scripts/openid-jquery.js",
"~/Scripts/openid-en.js"));
bundles.Add(new StyleBundle("~/Content/css/openid").Include("~/Content/openid/css/openid-shadow.css"));
我更喜欢 OpenID 选择器的“影子”样式，所以我选择只使用openid-shadow.cssCSS 文件并自定义以下类以在 MVC4 登录模板中工作。
/Content/css/openid/openid-shadow.css
/*#openid_form {
width: 590px;
}*/
#openid_highlight {
padding: 0px;
background-color: #FFFCC9;
float: left;
border-radius: 5px;
-moz-border-radius: 5px;
-webkit-border-radius: 5px;
}
.openid_large_btn {
width: 100px;
height: 60px;
/* fix for IE 6 only: http://en.wikipedia.org/wiki/CSS_filter#Underscore_hack */
_width: 104px;
_height: 64px;
border: 2px solid #DDD;
border-right: 2px solid #ccc;
border-bottom: 2px solid #ccc;
margin: 3px;
padding: 3px;
float: left;
border-radius: 5px;
-moz-border-radius: 5px;
-webkit-border-radius: 5px;
box-shadow: 2px 2px 4px #ddd;
-moz-box-shadow: 2px 2px 4px #ddd;
-webkit-box-shadow: 2px 2px 4px #ddd;
}
.openid_large_btn:hover {
margin: 4px 3px 3px 6px;
padding: 2px 3px 3px 0px;
border: 2px solid #999;
box-shadow: none;
-moz-box-shadow: none;
-webkit-box-shadow: none;
}
要创建将 CSS 脚本添加到页面标签的通用位置，请在标签底部<head>添加一个部分。head<head>
/Views/Shared/_Layout.cshtml
<head>
<meta charset="utf-8" />
<title>@ViewBag.Title - My ASP.NET MVC Application</title>
<link href="~/favicon.ico" rel="shortcut icon" type="image/x-icon" />
<meta name="viewport" content="width=device-width" />
@Styles.Render("~/Content/css")
@Scripts.Render("~/bundles/modernizr")
@RenderSection("head", false)
</head>
然后，在/Views/Account/Login.cshtml文件中，Login通过将我们之前注册的 OpenID 包添加到页面底部的相应部分来自定义视图。
/Views/Account/Login.cshtml
<section class="social" id="socialLoginForm">
@Html.Action("ExternalLoginsList", new { ReturnUrl = ViewBag.ReturnUrl })
</section>
@section Head {
@Styles.Render("~/Content/css/openid")
}
@section Scripts {
@Scripts.Render("~/bundles/jqueryval")
@Scripts.Render("~/bundles/openid")
<script type="text/javascript">
$(function () {
openid.init('provider');
});
</script>
}
UI 的最后一个元素涉及将默认ExternalLogin表单替换为 OpenID 选择器表单。
/Views/Account/_ExternalLoginsListPartial.cshtml
using (Html.BeginForm("ExternalLogin", "Account", new { ReturnUrl = ViewBag.ReturnUrl }, FormMethod.Post, new { id = "openid_form" }))
{
@Html.AntiForgeryToken()
<input type="hidden" name="action" value="verify" />
<h2>Use another service to log in.</h2>
<br />
<fieldset id="socialLoginList">
<legend></legend>
<div id="openid_choice">
<div id="openid_btns"></div>
</div>
<div id="openid_input_area">
<input id="provider" name="provider" type="text" value="" />
<input id="openid_submit" type="submit" value="Log in"/>
</div>
<noscript>
<p>OpenID is service that allows you to log-on to many different websites using a single indentity. Find out <a href="http://openid.net/what/">more about OpenID</a> and <a href="http://openid.net/get/">how to get an OpenID enabled account</a>.</p>
</noscript>
</fieldset>
}
