我正在尝试通过API Google Drive发送文件，但是，我找不到任何有关如何使用身份验证服务帐户执行C＃上传文件的文档。
我下载了Daimto库，但是，当我们使用身份验证ClientId和ClientSecret时，他使用DriveService类上传。但是使用身份验证进行帐户服务后，他返回到PlusService类，发现无法以这种方式上传文件。
有人能帮助我吗？ 最好的问候
使用身份验证服务帐户
public PlusService GoogleAuthenticationServiceAccount()
{
String serviceAccountEmail = "106842951064-6s4s95s9u62760louquqo9gu70ia3ev2@developer.gserviceaccount.com";
//var certificate = new X509Certificate2(@"key.p12", "notasecret", X509KeyStorageFlags.Exportable);
var certificate = new X509Certificate2(@"key.p12", "notasecret", X509KeyStorageFlags.Exportable);
ServiceAccountCredential credential = new ServiceAccountCredential(
new ServiceAccountCredential.Initializer(serviceAccountEmail)
{
Scopes = new[] { PlusService.Scope.PlusMe }
}.FromCertificate(certificate));
// Create the service.
var service = new PlusService(new BaseClientService.Initializer()
{
HttpClientInitializer = credential,
ApplicationName = "Plus API Sample",
});
return service;
}
使用Authentication ClientId和ClientSecret
public DriveService GoogleAuthentication(string userClientId, string userSecret)
{
//Scopes for use with the Google Drive API
string[] scopes = new string[] { DriveService.Scope.Drive, DriveService.Scope.DriveFile };
// here is where we Request the user to give us access, or use the Refresh Token that was previously stored in %AppData%
UserCredential credential = GoogleWebAuthorizationBroker.AuthorizeAsync(new ClientSecrets { ClientId = userClientId, ClientSecret = userSecret }, scopes, Environment.UserName, CancellationToken.None, new FileDataStore("Daimto.GoogleDrive.Auth.Store")).Result;
DriveService service = new DriveService(new BaseClientService.Initializer()
{
HttpClientInitializer = credential,
ApplicationName = "Drive API Sample"
});
return service;
}
Daimto类方法，使文件上传到谷歌驱动器 DaimtoGoogleDriveHelper.uploadFile（_service，fileName，item.NomeArquivo，directoryId）;
正如您所看到的，Daimto库有一个上传方法，但是，使用_service参数，这是DriveService类型，这是GoogleAuthentication方法返回的。但GoogleAuthenticationServiceAccount方法返回PlusService类型，并且与DriveService类型不兼容。
答案 0 :(得分：1)
我不确定您关注的是哪一个教程。但是你的第一大块代码是使用PlusService，你应该使用DriveService。您对Google云端硬盘API发出的任何请求都必须通过DriveService
使用服务帐户向Google云端硬盘进行身份验证：
/// <summary>
/// Authenticating to Google using a Service account
/// Documentation: https://developers.google.com/accounts/docs/OAuth2#serviceaccount
/// </summary>
/// <param name="serviceAccountEmail">From Google Developer console https://console.developers.google.com</param>
/// <param name="keyFilePath">Location of the Service account key file downloaded from Google Developer console https://console.developers.google.com</param>
/// <returns></returns>
public static DriveService AuthenticateServiceAccount(string serviceAccountEmail, string keyFilePath)
{
// check the file exists
if (!File.Exists(keyFilePath))
{
Console.WriteLine("An Error occurred - Key file does not exist");
return null;
}
//Google Drive scopes Documentation: https://developers.google.com/drive/web/scopes
string[] scopes = new string[] { DriveService.Scope.Drive, // view and manage your files and documents
DriveService.Scope.DriveAppdata, // view and manage its own configuration data
DriveService.Scope.DriveAppsReadonly, // view your drive apps
DriveService.Scope.DriveFile, // view and manage files created by this app
DriveService.Scope.DriveMetadataReadonly, // view metadata for files
DriveService.Scope.DriveReadonly, // view files and documents on your drive
DriveService.Scope.DriveScripts }; // modify your app scripts
var certificate = new X509Certificate2(keyFilePath, "notasecret", X509KeyStorageFlags.Exportable);
try
{
ServiceAccountCredential credential = new ServiceAccountCredential(
new ServiceAccountCredential.Initializer(serviceAccountEmail)
{
Scopes = scopes
}.FromCertificate(certificate));
// Create the service.
DriveService service = new DriveService(new BaseClientService.Initializer()
{
HttpClientInitializer = credential,
ApplicationName = "Daimto Drive API Sample",
});
return service;
}
catch (Exception ex)
{
Console.WriteLine(ex.InnerException);
return null;
}
}
}
上传文件：
private static string GetMimeType(string fileName)
{
string mimeType = "application/unknown";
string ext = System.IO.Path.GetExtension(fileName).ToLower();
Microsoft.Win32.RegistryKey regKey = Microsoft.Win32.Registry.ClassesRoot.OpenSubKey(ext);
if (regKey != null && regKey.GetValue("Content Type") != null)
mimeType = regKey.GetValue("Content Type").ToString();
return mimeType;
}
/// <summary>
/// Uploads a file
/// Documentation: https://developers.google.com/drive/v2/reference/files/insert
/// </summary>
/// <param name="_service">a Valid authenticated DriveService</param>
/// <param name="_uploadFile">path to the file to upload</param>
/// <param name="_parent">Collection of parent folders which contain this file.
/// Setting this field will put the file in all of the provided folders. root folder.</param>
/// <returns>If upload succeeded returns the File resource of the uploaded file
/// If the upload fails returns null</returns>
public static File uploadFile(DriveService _service, string _uploadFile, string _parent) {
if (System.IO.File.Exists(_uploadFile))
{
File body = new File();
body.Title = System.IO.Path.GetFileName(_uploadFile);
body.Description = "File uploaded by Diamto Drive Sample";
body.MimeType = GetMimeType(_uploadFile);
body.Parents = new List<ParentReference>() { new ParentReference() { Id = _parent } };
// File's content.
byte[] byteArray = System.IO.File.ReadAllBytes(_uploadFile);
System.IO.MemoryStream stream = new System.IO.MemoryStream(byteArray);
try
{
FilesResource.InsertMediaUpload request = _service.Files.Insert(body, stream, GetMimeType(_uploadFile));
request.Upload();
return request.ResponseBody;
}
catch (Exception e)
{
Console.WriteLine("An error occurred: " + e.Message);
return null;
}
}
else {
Console.WriteLine("File does not exist: " + _uploadFile);
return null;
}
}
如果您使用的是Oauth2或服务帐户，则上传代码是相同的。
Github上从Google云端硬盘.net示例中删除的代码 教程：Google Drive API with C# .net – Download