更改Google默认身份验证重定向 - C#(Google liblary)

Question

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

我的代码一样

但!我需要更改此默认网址重定向.现在是:redirect_uri = http:%2F%2Flocalhost:52674%2FAuthCallback%2FIndexAsync

我怎么能改变这个网址？伙计们请帮忙.

谢谢

Answer 1

您可以继承表单FlowMetadata并覆盖AuthCallback属性.看看以下链接:

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

但是,您将能够更改相对URL但不能更改绝对URL.

如果要使用完全不同的URL,则需要创建自己的AuthorizationCodeMvcApp并将其构造函数更改为以下内容:

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

然后,您可以将其插入到您的流中,而不是默认的AuthorizationCodeMvcApp(库的默认实现).

Answer 2

我还发现最初改变Googles OAuth 2.0重定向uri真的很棘手但事实证明它非常简单.你可以用不同的方式做到这一点.如果您关注OAog 2.0 Web应用程序(ASP.NET MVC)的Googles指南,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"; }
}

您也可以实现自己的"AuthorizationCodeMvcApp"版本,但这样做太过分了.不要越过溪流取水.:)

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

但是如果你想这样做就是一个例子:

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);
            }
        }
    }