Google APIs Oauth .net core 3.1 [英] Google APIs Oauth .net core 3.1

问题描述

我有一个 .net core 3.1 MVC Web 应用程序.我正在尝试开始使用一些 google api.我发现 Google 文档非常混乱.在官方文档中，我发现是一个不支持 .net 核心的 MVC 库.有人可以指出我正确的方向 - 我应该如何开始在 MVC .net 核心 Web 应用程序上对我的用户进行身份验证?我应该寻找非谷歌 oauth 库吗?谷歌是否支持我没有找到的东西?

I have a .net core 3.1 MVC web application. I'm trying to get started with some google apis. I'm finding Google documentation extremely confusing. In the official docs, I found was an MVC lib not supporting .net core. Can somebody point me in the right direction - how should I get started with authenticating my users on an MVC .net core web app? Should I be looking for a non google oauth lib? Does google support something that I'm not finding?

试图再挖掘一些，我遇到了 Google.Apis.Auth.AspNetCore3.这是推荐的方法吗?关于如何使用它的任何文档，或者我应该自己下载源代码?我很困惑.

Trying to dig some more, I came across Google.Apis.Auth.AspNetCore3. Is this the recommended approach? Any documentation on how to use it, or I should be downloading source code myself? I'm plumb confused.

推荐答案

这是一个 Google 分析示例，如果您需要帮助更改它以使用不同的 api，请告诉我.

This is an example with Google analytics let me know if you need help altering it for a different api..

public class Client
    {
        public class Web
        {
            public string client_id { get; set; }
            public string client_secret { get; set; }
        }

        public Web web { get; set; }
    }



    public class ClientInfo
    {
        public Client Client { get; set;  }

        private readonly IConfiguration _configuration;

        public ClientInfo(IConfiguration configuration)
        {
            _configuration = configuration;
            Client = Load();
        }

        private Client Load()
        {
            var filePath = _configuration["TEST_WEB_CLIENT_SECRET_FILENAME"];
            if (string.IsNullOrEmpty(filePath))
            {
                throw new InvalidOperationException(
                    $"Please set the TEST_WEB_CLIENT_SECRET_FILENAME environment variable before running tests.");
            }

            if (!File.Exists(filePath))
            {
                throw new InvalidOperationException(
                    $"Please set the TEST_WEB_CLIENT_SECRET_FILENAME environment variable before running tests.");
            }

            var x = File.ReadAllText(filePath);

            return JsonConvert.DeserializeObject<Client>(File.ReadAllText(filePath));
        }
    }

    public class Startup
    {
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
        }

        public IConfiguration Configuration { get; }

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddSingleton<ClientInfo>();

            services.AddControllers();

            services.AddAuthentication(o =>
                {
                    // This is for challenges to go directly to the Google OpenID Handler, so there's no
                    // need to add an AccountController that emits challenges for Login.
                    o.DefaultChallengeScheme = GoogleOpenIdConnectDefaults.AuthenticationScheme;
                    // This is for forbids to go directly to the Google OpenID Handler, which checks if
                    // extra scopes are required and does automatic incremental auth.
                    o.DefaultForbidScheme = GoogleOpenIdConnectDefaults.AuthenticationScheme;
                    o.DefaultScheme = CookieAuthenticationDefaults.AuthenticationScheme;
                })
                .AddCookie()
                .AddGoogleOpenIdConnect(options =>
                {
                    var clientInfo = new ClientInfo(Configuration);
                    options.ClientId = clientInfo.Client.web.client_id;
                    options.ClientSecret = clientInfo.Client.web.client_secret;
                });
            services.AddMvc();
        }


        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }

            app.UseHttpsRedirection();

            app.UseRouting();
            
            app.UseAuthentication();
            app.UseAuthorization();

            app.UseEndpoints(endpoints => { endpoints.MapControllers(); });
        }
    }

带身份验证的控制器

[ApiController]
[Route("[controller]")]
public class GAAnalyticsController : ControllerBase
{
    
    private readonly ILogger<WeatherForecastController> _logger;

    public GAAnalyticsController(ILogger<WeatherForecastController> logger)
    {
        _logger = logger;
    }

    // Test showing use of incremental auth.
    // This attribute states that the listed scope(s) must be authorized in the handler.
    [GoogleScopedAuthorize(AnalyticsReportingService.ScopeConstants.AnalyticsReadonly)]
    public async Task<GetReportsResponse> Get([FromServices] IGoogleAuthProvider auth, [FromServices] ClientInfo clientInfo)
    {
        var GoogleAnalyticsViewId = "78110423";

        var cred = await auth.GetCredentialAsync();
        var service = new  AnalyticsReportingService(new BaseClientService.Initializer
        {
            HttpClientInitializer = cred
        });
        
        var dateRange = new DateRange
        {
            StartDate = "2015-06-15",
            EndDate = "2015-06-30"
        };

        // Create the Metrics object.
        var sessions = new Metric
        {
            Expression = "ga:sessions",
            Alias = "Sessions"
        };

        //Create the Dimensions object.
        var browser = new Dimension
        {
            Name = "ga:browser"
        };

        // Create the ReportRequest object.
        var reportRequest = new ReportRequest
        {
            ViewId = GoogleAnalyticsViewId,
            DateRanges = new List<DateRange> {dateRange},
            Dimensions = new List<Dimension> {browser},
            Metrics = new List<Metric> {sessions}
        };

        var requests = new List<ReportRequest> {reportRequest};

        // Create the GetReportsRequest object.
        var getReport = new GetReportsRequest {ReportRequests = requests};

        // Make the request.
        var response = service.Reports.BatchGet(getReport).Execute();
        return response;
    }
}

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