public byte[] Download(GDriveCredentials cred, string fileId)
{
var service = new DriveService(new BaseClientService.Initializer()
{
HttpClientInitializer = cred.Credential,
ApplicationName = "GMT",
});
var l = service.Files.List();
var list = l.Execute();
File file1 = null;
foreach (var f in list.Files)
{
if (fileId.Equals(f.Name, System.StringComparison.OrdinalIgnoreCase))
{
file1 = f;
}
}
if (file1 == null)
{
return(null);
}
//https://developers.google.com/drive/v3/web/manage-downloads
var request = service.Files.Get(file1.Id);
using (var s = new MemoryStream())
{
request.Download(s);
return(s.ToArray());
}
}
/// <summary>
/// Authorize this instance.
/// to setup credentials : https://console.developers.google.com/apis/library
/// https://console.developers.google.com/home/dashboard?project=gantt-mono-tracker
/// A problem with W10
/// https://github.com/google/google-api-dotnet-client/issues/557
/// Use access_type offline with the Google C# SDK to prevent the need to reauthenticate every hour
/// https://gist.github.com/SNiels/d2d39276bdeaeaa4d6b6148a0ab02a48
/// </summary>
public async Task AuthorizeAsync()
{
//TODO: exceptions from async methods hangs app.
var credFile = "Sunchronization\\GDrive\\client_id.json";
string credPath = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
string resultPath = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
credPath = Path.Combine(credPath, credFile);
using (var stream =
new FileStream(credPath, FileMode.Open, FileAccess.Read))
{
//Scopes for use with the Google Drive API
var secrets = GoogleClientSecrets.Load(stream).Secrets;
Credentials = new GDriveCredentials(secrets.ClientId, secrets.ClientSecret);
Credentials.Credential = await GoogleWebAuthorizationBroker.AuthorizeAsync(
secrets,
new[] { Uri.EscapeUriString(DriveService.Scope.Drive) },
Environment.UserName,
CancellationToken.None);
};
}
public bool Upload(GDriveCredentials cred, byte[] raw, string fileId, bool exists)
{
var service = new DriveService(new BaseClientService.Initializer
{
HttpClientInitializer = cred.Credential,
ApplicationName = "GMT",
});
var body = new File {
Name = fileId, Description = "Gantt Mono Tracker project", MimeType = "text/xml"
};
//manual
//https://developers.google.com/drive/v3/web/manage-uploads
FilesResource.CreateMediaUpload request;
using (var stream = new MemoryStream(raw))
{
if (exists)
{
try
{
FilesResource.UpdateMediaUpload updateRequest = service.Files.Update(body, fileId, stream, "text/xml");
var updateProcess = updateRequest.Upload();
if (updateProcess.Status != Google.Apis.Upload.UploadStatus.Completed)
{
throw updateProcess.Exception;
}
}
catch
{
exists = false;
}
}
if (!exists)
{
request = service.Files.Create(
body, stream, "text/xml");
request.Fields = "id";
/*{
* "error": {
* "errors": [
* {
* "domain": "global",
* "reason": "insufficientPermissions",
* "message": "Insufficient Permission"
* }
* ],
* "code": 403,
* "message": "Insufficient Permission"
*
* }
* }*/
var process = request.Upload();
if (process.Status != Google.Apis.Upload.UploadStatus.Completed)
{
throw process.Exception;
}
}
}
return(true);
}
