更改谷歌默认的认证重定向 - C＃（谷歌liblary）

Question

我试试这个代码：https://developers.google.com/api-client-library/dotnet/guide/aaa_oauth#web_applications

我的代码相同

但是！我需要改变这个默认的URL重定向。 现在是：redirect_uri = http：％2F％2Flocalhost：52674％2FAuthCallback％2FIndexAsync

我如何更改此网址？伙计们请帮忙。

谢谢

Answer 1

您可以继承表单FlowMetadata并覆盖AuthCallback属性。看看下面的链接：

https://code.google.com/p/google-api-dotnet-client/source/browse/Src/GoogleApis.Auth.Mvc4/OAuth2/Mvc/FlowMetadata.cs?r=eb702f917c0e18fc960d077af132d0d83bcd6a88#49

但是，你将能够改变相对URL但不是绝对的。

如果你想使用一个完全不同的网址，你需要做的创建自己的AuthorizationCodeMvcApp并改变其构造函数如下：

public MyNewAuthorizationCodeMvcApp(Controller controller, FlowMetadata flowData) 
     : base(
     flowData.Flow, 
     < YOUR URL HERE >, 
     controller.Request.Url.ToString()) 
    { 
     this.controller = controller; 
     this.flowData = flowData; 
    } 

然后，你可以把它插入到你的流量，而不是默认AuthorizationCodeMvcApp（库的默认实现）。

Answer 2

我也发现它变得非常棘手，首先要改变谷歌OAuth 2.0重定向uri，但事实证明它很简单。你可以用不同的方式做到这一点。如果您按照Googles指南获取OAuth 2.0 Web应用程序（ASP.NET MVC），最简单的选择是覆盖AppFlowMetadata类中的AuthCallback字符串。

https://developers.google.com/api-client-library/dotnet/guide/aaa_oauth

public override string AuthCallback 
{ 
    get { return @"/AuthCallback/Index"; } 
} 

你也可以实现自己的 “AuthorizationCodeMvcApp” 的版本，但是那是相当矫枉过正。不要越过河流得到水。 :)

https://github.com/google/google-api-dotnet-client/tree/master/Src/GoogleApis.Auth.Mvc4/OAuth2/Mvc

但是，如果你想要做的是，这里有一个例子：

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Web; 
using System; 
using System.Threading; 
using System.Threading.Tasks; 
using System.Web.Mvc; 
using Google.Apis.Auth.OAuth2.Mvc; 
using Google.Apis.Auth.OAuth2.Web; 

namespace ProjectName.GoogleCalendar 
{ 
     /// <summary> 
     /// Thread-safe OAuth 2.0 authorization code flow for a MVC web application that persists end-user credentials. 
     /// </summary> 
     public class CustomAuthorizationCodeMvcApp : AuthorizationCodeWebApp 
     { 

      private readonly Controller controller; 
      private readonly FlowMetadata flowData; 

      /// <summary>Gets the controller which is the owner of this authorization code MVC app instance.</summary> 
      public Controller Controller { get { return controller; } } 

      /// <summary>Gets the <see cref="Google.Apis.Auth.OAuth2.Mvc.FlowMetadata"/> object.</summary> 
      public FlowMetadata FlowData { get { return flowData; } } 

      /// <summary>Constructs a new authorization code MVC app using the given controller and flow data.</summary> 
      public CustomAuthorizationCodeMvcApp(Controller controller, FlowMetadata flowData) 
       : base(
       flowData.Flow, 
       new Uri(controller.Request.Url.GetLeftPart(UriPartial.Authority) + "/CustomController" + flowData.AuthCallback).ToString(), 
       controller.Request.Url.ToString()) 
      { 
       this.controller = controller; 
       this.flowData = flowData; 
      } 

      /// <summary> 
      /// Asynchronously authorizes the installed application to access user's protected data. It gets the user 
      /// identifier by calling to <see cref="Google.Apis.Auth.OAuth2.Mvc.FlowMetadata.GetUserId"/> and then calls to 
      /// <see cref="Google.Apis.Auth.OAuth2.AuthorizationCodeWebApp.AuthorizeAsync"/>. 
      /// </summary> 
      /// <param name="taskCancellationToken">Cancellation token to cancel an operation</param> 
      /// <returns> 
      /// Auth result object which contains the user's credential or redirect URI for the authorization server 
      /// </returns> 
      public Task<AuthResult> AuthorizeAsync(CancellationToken taskCancellationToken) 
      { 
       return base.AuthorizeAsync(FlowData.GetUserId(Controller), taskCancellationToken); 
      } 
     } 
    }