使用OpenOAuthProvider通过Google进行身份验证

Question

我在Visual Studio中创建了默认的ASP.NET项目模板,然后转到了AuthConfig内部App_Start文件夹.然后我取消注释以下行:

OpenAuth.AuthenticationClients.AddGoogle();

我得到了像Google一样登录Google的按钮:

当我点击Google按钮时,我收到此错误:

An exception of type 'DotNetOpenAuth.Messaging.ProtocolException' 
occurred in DotNetOpenAuth.OpenId.RelyingParty.dll but was not handled in user code

Additional information: No OpenID endpoint found.

WE.config文件

    <?xml version="1.0" encoding="utf-8"?>
    <!--
      For more information on how to configure your ASP.NET application, please visit
      http://go.microsoft.com/fwlink/?LinkId=169433
      -->
    <configuration>
      <configSections>


     <!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
        <section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=5.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
      </configSections>          
      <system.web>
        <compilation debug="true" targetFramework="4.5" />
        <httpRuntime targetFramework="4.5" />
        <pages>


<namespaces>
    <add namespace="System.Web.Optimization" />
  </namespaces>
<controls>
  <add assembly="Microsoft.AspNet.Web.Optimization.WebForms" namespace="Microsoft.AspNet.Web.Optimization.WebForms" tagPrefix="webopt" />
</controls></pages>
<authentication mode="Forms">
  <forms loginUrl="~/Account/Login" timeout="2880" defaultUrl="~/" />
</authentication>
<profile defaultProvider="DefaultProfileProvider">
  <providers>


<add name="DefaultProfileProvider" type="System.Web.Providers.DefaultProfileProvider, System.Web.Providers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" connectionStringName="DefaultConnection" applicationName="/" />
  </providers>
</profile>
<membership defaultProvider="DefaultMembershipProvider">
  <providers>
    <add name="DefaultMembershipProvider" type="System.Web.Providers.DefaultMembershipProvider, System.Web.Providers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" connectionStringName="DefaultConnection" enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" requiresUniqueEmail="false" maxInvalidPasswordAttempts="5" minRequiredPasswordLength="6" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10" applicationName="/" />
  </providers>
</membership>
<roleManager defaultProvider="DefaultRoleProvider">
  <providers>


         <add name="DefaultRoleProvider" type="System.Web.Providers.DefaultRoleProvider, System.Web.Providers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" connectionStringName="DefaultConnection" applicationName="/" />
          </providers>
        </roleManager>

        <sessionState mode="InProc" customProvider="DefaultSessionProvider">
          <providers>
            <add name="DefaultSessionProvider" type="System.Web.Providers.DefaultSessionStateProvider, System.Web.Providers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" connectionStringName="DefaultConnection" />
          </providers>
        </sessionState>
      </system.web>
      <runtime>


     <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
          <dependentAssembly>
            <assemblyIdentity name="DotNetOpenAuth.Core" publicKeyToken="2780ccd10d57b246" />
            <bindingRedirect oldVersion="1.0.0.0-4.0.0.0" newVersion="4.1.0.0" />
          </dependentAssembly>
          <dependentAssembly>
            <assemblyIdentity name="DotNetOpenAuth.AspNet" publicKeyToken="2780ccd10d57b246" />
            <bindingRedirect oldVersion="0.0.0.0-4.1.0.0" newVersion="4.1.0.0" />
          </dependentAssembly>
          <dependentAssembly>
            <assemblyIdentity name="EntityFramework" publicKeyToken="b77a5c561934e089" culture="neutral" />
            <bindingRedirect oldVersion="0.0.0.0-5.0.0.0" newVersion="5.0.0.0" />
          </dependentAssembly>
          <dependentAssembly>
            <assemblyIdentity name="WebGrease" publicKeyToken="31bf3856ad364e35" culture="neutral" />
            <bindingRedirect oldVersion="0.0.0.0-1.5.2.14234" newVersion="1.5.2.14234" />
          </dependentAssembly>
        </assemblyBinding>
      </runtime>
      <entityFramework>
        <defaultConnectionFactory type="System.Data.Entity.Infrastructure.SqlConnectionFactory, EntityFramework" />
      </entityFramework>

    <appSettings>
          <add key="ValidationSettings:UnobtrusiveValidationMode" value="None" />
        </appSettings>

    </configuration>

请帮我.我错过了什么？

Answer 1

实际上这种实现（OpenId）已被弃用。如果可以的话，应该改成MVC5。在MVC5中，这非常简单。该解决方案仍然有效。如果不能，您需要自己编写此组件或使用使用 OAuth2 与 Google 通信的第三方组件。有关已弃用功能的更多信息，请参阅此答案。