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我尝试使用代表另一个用户的服务帐户创建 DriveService。

我从这里找到的谷歌文档复制了这段代码https://developers.google.com/drive/delegation

    static DriveService BuildService() {
            X509Certificate2 certificate = new X509Certificate2(SERVICE_ACCOUNT_PKCS12_FILE_PATH, "notasecret", X509KeyStorageFlags.Exportable);
        var provider = new AssertionFlowClient(GoogleAuthenticationServer.Description, certificate)

        {
            ServiceAccountId = SERVICE_ACCOUNT_EMAIL,
            Scope = DriveService.Scopes.Drive.GetStringValue(),
        };
        var auth = new OAuth2Authenticator<AssertionFlowClient>(provider, AssertionFlowClient.GetState);
        return new DriveService(auth);
    }

但我在尝试构建项目时收到此警告:

警告 4 'Google.Apis.Authentication.OAuth2.DotNetOpenAuth.AssertionFlowClient' 已过时:'AssertionFlowClient 不再受支持,它将在 1.7.0-beta 中删除。考虑使用新的 Google.Apis.Auth NuGet 包中的 ServiceAccountCredential。

我也收到此错误:

错误 11 参数 1:无法从“Google.Apis.Authentication.OAuth2.OAuth2Authenticator”转换为“Google.Apis.Services.BaseClientService.Initializer”

然后我用谷歌搜索 ServiceAccountCredential 并最终得到了这个代码(来自这个页面: https ://code.google.com/p/google-api-dotnet-client/wiki/OAuth2#Service_Accounts )

static DriveService BuildService() {
            X509Certificate2 certificate = new X509Certificate2(SERVICE_ACCOUNT_PKCS12_FILE_PATH, "notasecret", X509KeyStorageFlags.Exportable);

        ServiceAccountCredential credential = new ServiceAccountCredential(
            new ServiceAccountCredential.Initializer(SERVICE_ACCOUNT_EMAIL)
            {
                User = "someone@mydomain.mygbiz.com", 
                Scopes = new[] { DriveService.Scope.DriveFile }
            }.FromCertificate(certificate));

        var service = new DriveService(new BaseClientService.Initializer()
        {
            HttpClientInitializer = credential,
            ApplicationName = "Drive API Sample",
        });

        return service;
    }

当我尝试构建此代码时,它似乎一切都很好,但是当我运行它时,我收到以下错误。

mscorlib.dll 中出现了“System.Security.Cryptography.CryptographicException”类型的第一次机会异常

附加信息:Det går inte att hitta det begärda objektet。(翻译:找不到请求的对象)

如果有这个异常的处理程序,程序可以安全地继续。

错误发生在这一行:

X509Certificate2 certificate = new X509Certificate2(SERVICE_ACCOUNT_PKCS12_FILE_PATH, "notasecret", X509KeyStorageFlags.Exportable);

有人有想法么?

2013 年 10 月 31 日更新我已经尝试过这段代码:

{
        Console.WriteLine("Drive API - Service Account");
        Console.WriteLine("==========================");

        String serviceAccountEmail = "<some email>@developer.gserviceaccount.com";

        var certificate = new X509Certificate2(@"key.p12", "notasecret", X509KeyStorageFlags.Exportable);

        ServiceAccountCredential credential = new ServiceAccountCredential(
           new ServiceAccountCredential.Initializer(serviceAccountEmail)
           {
               User = "<someuser>@<mydomain>.mygbiz.com",
               Scopes = new[] { DriveService.Scope.Drive }
           }.FromCertificate(certificate));

        // Create the service.
        var service = new DriveService(new BaseClientService.Initializer()
        {
            HttpClientInitializer = credential,
            ApplicationName = "DrvMgr",
        });

        Console.WriteLine("Executing listing");
        FileList UserFiles = service.Files.List().Execute();

我收到此错误消息:

Google.Apis.dll 中出现“Google.Apis.Auth.OAuth2.Responses.TokenResponseException”类型的未处理异常

附加信息:错误:“access_denied”,描述:“”,Uri:“”

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1 回答 1

0

看起来您的 p12 文件的路径不正确。请参阅Plus.ServiceAccount示例以获取有效的解决方案。

我认为在此示例中,key.p12 作为内容文件添加到项目中,该内容文件始终复制到输出目录。然后从代码中提及“key.p12”文件路径将导致从输出文件夹中获取该文件。

于 2013-10-29T19:40:51.097 回答