我在 Google 云端硬盘中看不到通过代码创建的文件和文件夹 [英] I can't see the files and folders created via code in my Google Drive
问题描述
我是一名网络开发人员，我想从我的业务软件中访问 Google API，我已经创建了一个云端硬盘帐户我想通过代码(VB.NET)创建一个文件夹和文件.我正在关注文档，我创建了一个 JWT(Json Web 令牌)，我使用了一个服务帐户我已经获得了一个访问令牌.
I'm a web developer and i'd like to access to the Google APIs from my business software, I've created a Drive account and I'd to create a folders and files via code (VB.NET). I'm following the documentation, I've created a JWT (Json Web Token), I've used a Service Account and I've obtained an Access Token.
现在我想访问 Google API.使用控制台应用程序，我创建了一些文件夹，并且可以通过代码获取已创建文件夹的列表.但我在我的 Google Drive 帐户中看不到这些文件夹.这怎么可能?
Now I'd like to access to the Google APIs. Using a console application, I created some folders, and I can get a list of created folders via code. But I cannot see those folders in my Google Drive account. How is it possible?
这是我发送到服务器以显示文件夹和文件列表的请求:https://www.googleapis.com/files/{FILE_ID}?key={API_KEY}
Here is the request I send to the server in order to show the folders and files list: https://www.googleapis.com/files/{FILE_ID}?key={API_KEY}
我获得一个 JSON 字符串作为响应，其中包含与 FILE_ID 元素相关的信息.例如:
I obtain a JSON string as response, with the informations relating the FILE_ID elements. e.g.:
{种类":驱动器#文件"，"id":"FILE_ID","mimeType":"application/vnd.google-apps.folder"(如果是文件夹)/"FILE_MIMETYPE"(如果是文件),"title":"FOLDER_NAME"/"FILE_NAME",...}
{ "kind":"drive#file", "id":"FILE_ID", "mimeType":"application/vnd.google-apps.folder"(if is a folder) / "FILE_MIMETYPE"(if is a file), "title":"FOLDER_NAME" / "FILE_NAME", ... }
这是我用来访问 Google API 的代码:(VB.NET)
And here is the code I used to access to Google APIs: (VB.NET)
...
Public Function browseFile(ByVal fId As String) As List (Of FileSourceElement)
Dim webclient As New WebClient()
webclient.Headers.Add("Authorization", " Bearer " & _accessToken)
webclient.Headers.Add("X-JavaScript-User-Agent", "Google APIs Explorer")
Dim res As String = webclient.DownloadString("https://www.googleapis.com/drive/v2/files?key=" & _apiKey).Trim()
'res contains the JSON with the informations of the file/folder
...
End Function
Public Sub createContainer(ByVal path As String)
Dim webclient As New WebClient()
webclient.Headers.Add("Authorization", " Bearer " & _accessToken)
webclient.Headers.Add("X-JavaScript-User-Agent", "Google APIs Explorer")
webclient.Headers.Add("Content-Type", "application/json")
webclient.UploadString("https://www.googleapis.com/drive/v2/files", _
"POST", _
"{""title"":""daEliminare2"", ""parents"":[{""id"":""" & path & """}], ""mimeType"":""application/vnd.google-apps.folder""}")
End Sub
...
在我的 Google 云端硬盘中，我没有手动创建文件夹，也没有手动上传文件，我只能通过代码完成所有操作.
In my Google Drive I haven't MANUALLY created a folder and I haven't MANUALLY uploaded a file, i must do all the operation only via code.
正如我对您所说，我已经成功创建了一个文件夹，并且我成功打印了文件列表(通过代码)，但是在我的 GDrive 中，由 UI 创建的元素不要出现.为什么?
As I said to you, I've successfully created a folder and I printed successfully the list of file (via code), but in my GDrive the elements created by UI don't appear. Why?
我在服务帐户中读到过，为了获取访问令牌，需要一个名为 Json Web Token (JWT) 的特殊 JSON 字符串，该字符串由标头组成，声明集和签名(base64 字符串).字符串是:
I've read that in the Service Account, in order to get the Access Token it's required a special JSON string called Json Web Token (JWT) composed by an header, a claim set and a signature (base64 string). The string is:
{base64 格式的 JWT 标头}.{base64 格式的 JWT 声明集}.{base64 格式的 JWT 签名}
{base64 formatted JWT header}.{base64 formatted JWT claimSet}.{base64 formatted JWT signature}
我的智威汤逊是:
标题
{
"alg": "RS256",
"typ": "JWT"
}
索赔集{"iss": "0123456789@developer.gserviceaccount.com",//其中 '0123456789' 是 CLIENT_ID.范围":https://www.googleapis.com/auth/drive"，"aud": "https://accounts.google.com/o/oauth2/token","exp": timeStamp + 3600,//其中 'timeStamp' 是自 1970-01-01T00:00:00 以来的秒数.iat":时间戳}
Claim set { "iss": "0123456789@developer.gserviceaccount.com", // where '0123456789' is the CLIENT_ID. "scope": "https://www.googleapis.com/auth/drive", "aud": "https://accounts.google.com/o/oauth2/token", "exp": timeStamp + 3600, //where 'timeStamp' is the number of seconds since 1970-01-01T00:00:00. "iat": timeStamp }
要编写签名，我已按照本页中描述的程序进行操作:
To write a signature I've followed the procedure descripted in this page:
https://developers.google.com/accounts/docs/OAuth2ServiceAccount#computingsignature
写完 JWT 后，我将它发送到服务器，并在此模式下得到一个 JSON 字符串作为响应:
Once I've written the JWT I send it to the server and I get a JSON string as response in this mode:
{
"access_token": "ACCESS_TOKEN", // (e.g.: 1/8xbJqaOZXS...)
"type_token": "Bearer",
"expire_in": 3600
}
当我获得访问令牌 (AT) 时，我使用它来访问 Google API；例如:如果我要显示所有文件和文件夹列表，我发送的请求具有这样的标头:
When I obtain the Access Token (AT), I use it to access to the Google APIs; for example: if I would show all list of files and folders, I send a request that has an header like this:
授权:承载ATX-JavaScript-User-Agent:Google APIs Explorer
Authorization: Bearer AT X-JavaScript-User-Agent: Google APIs Explorer
网址:https://www.googleapis.com/drive/v2/files?key={MY_API_KEY}
url: https://www.googleapis.com/drive/v2/files?key={MY_API_KEY}
但我强调，列表中有一些项目(使用 VB.NET 控制台应用程序)，而我的 Google Drive 中没有.
But I underline that in the list there are some items (using the VB.NET console application), while there aren't any in my Google Drive.
所以我获得了访问令牌，但我没有成功访问 Google API.
So I got the Access Token but I don't succeed to access to the Google APIs.
PS:我需要在不使用任何浏览器的情况下访问 Google API.
PS: I need access to the Google APIs without use any browser.
第二部分:
我在服务帐户中读到过，为了获取访问令牌，需要一个名为 Json Web 令牌 (JWT) 的特殊 JSON 字符串，该字符串由标头组成，声明集和签名(base64 字符串).字符串是:
I've read that in the Service Account, in order to get the Acces Token it's required a special JSON string called Json Web Token (JWT) composed by an header, a claim set and a signature (base64 string). The string is:
{base64 格式的 JWT 标头}.{base64 格式的 JWT 声明集}.{base64 格式的 JWT 签名}
{base64 formatted JWT header}.{base64 formatted JWT claimSet}.{base64 formatted JWT signature}
我的智威汤逊是:
标题
{
"alg": "RS256",
"typ": "JWT"
}
索赔集{"iss": "0123456789@developer.gserviceaccount.com",//其中 '0123456789' 是 CLIENT_ID.范围":https://www.googleapis.com/auth/drive"，"aud": "https://accounts.google.com/o/oauth2/token","exp": timeStamp + 3600,//其中 'timeStamp' 是自 1970-01-01T00:00:00 以来的秒数.iat":时间戳}
Claim set { "iss": "0123456789@developer.gserviceaccount.com", // where '0123456789' is the CLIENT_ID. "scope": "https://www.googleapis.com/auth/drive", "aud": "https://accounts.google.com/o/oauth2/token", "exp": timeStamp + 3600, //where 'timeStamp' is the number of seconds since 1970-01-01T00:00:00. "iat": timeStamp }
要编写签名，我已按照本页中描述的程序进行操作:
To write a signature I've followed the procedure descripted in this page:
https://developers.google.com/accounts/docs/OAuth2ServiceAccount#computingsignature
编写 JWT 后，我将其发送到服务器，并在此模式下得到一个 JSON 字符串作为响应:
Once I've written the JWT I send it to the server and I get a JSON string as respoonse in this mode:
{
"access_token": "ACCESS_TOKEN", // (e.g.: 1/8xbJqaOZXS...)
"type_token": "Bearer",
"expire_in": 3600
}
当我获得访问令牌 (AT) 时，我使用它来访问 Google API；例如:如果我要显示所有文件和文件夹列表，我发送的请求具有这样的标头:
When I obtain the Access Token (AT), I use it to access to the Google APIs; for example: if I would show all list of files and folders, I send a request that has an header like this:
授权:承载ATX-JavaScript-User-Agent:Google APIs Explorer
Authorization: Bearer AT X-JavaScript-User-Agent: Google APIs Explorer
网址:https://www.googleapis.com/drive/v2/files?key={MY_API_KEY}
url: https://www.googleapis.com/drive/v2/files?key={MY_API_KEY}
但我强调，列表中有一些项目(使用 VB.NET 控制台应用程序)，而我的 Google Drive 中没有.
But I underline that in the list there are some items (using the VB.NET console application), while there aren't any in my Google Drive.
所以我获得了访问令牌，但我没有成功访问 Google API.
So I got the Access Token but I don't succeed to access to the Google APIs.
PS:我需要在不使用任何浏览器的情况下访问 Google API.
PS: I need access to the Google APIs without use any browser.
非常感谢和最好的问候
MP
推荐答案
由于您使用的是服务帐户，所有文件夹和文件都将在此服务帐户的驱动器中创建，无法通过 Web UI 访问，并且会受到限制到默认配额.
Since you are using a Service Account, all the folders and files will be created in this Service Account's Drive which cannot be accessed through a web UI and will be limited to the default quota.
要在用户的云端硬盘中添加内容，您需要通过常规 OAuth 2.0 流程来检索该用户的凭据.您可以在此页面上找到有关 OAuth 2.0 的更多信息:
To add content in a user's Drive, you will need to go through the regular OAuth 2.0 flow to retrieve credentials from this user. You can find more information about OAuth 2.0 on this pages:
- 检索和使用 OAuth 2.0 凭据.
- 快速入门:它有一个可以使用的 C# 快速入门示例.
- 使用 OAuth 2.0 访问 Google API
- Retrieve and use OAuth 2.0 credentials.
- Quickstart: it has a quickstart sample in C# that you could use.
- Using OAuth 2.0 to access Google APIs
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