/// <summary>
/// Creates Google Drive service object with correct credentials.
/// </summary>
/// <param name="refreshToken">Refresh Token to use.</param>
/// <returns>Google Drive service object.</returns>
private async Task <DriveService> CreateService(string refreshToken)
{
var initializer =
new AuthorizationCodeFlow.Initializer(
"https://accounts.google.com/o/oauth2/auth",
"https://accounts.google.com/o/oauth2/token")
{
ClientSecrets =
new ClientSecrets
{
ClientId = Constants.GoogleDriveSyncClientId,
ClientSecret = Constants.GoogleDriveSyncClientSecret
}
};
// Hardcoded Google Drive Sync secret.
string[] scopes = { DriveService.Scope.DriveReadonly };
initializer.Scopes = scopes;
using (var codeFlow = new AuthorizationCodeFlow(initializer))
{
try
{
var token = await GoogleRequestHelper.Execute(
ct => codeFlow.RefreshTokenAsync("user", refreshToken, ct),
this.CancellationToken);
var credential = new UserCredential(codeFlow, "user", token);
var service =
new DriveService(
new BaseClientService.Initializer
{
HttpClientInitializer = credential,
ApplicationName = Utils.Constants.ApplicationName
});
return(service);
}
catch (Exception e)
{
if (this.CancellationToken.IsCancellationRequested)
{
this.Log.LogMessage("Operation was cancelled.");
throw;
}
this.StatusAccumulator.FailureOccurred();
this.Log.LogError("Authorization error.", e);
throw;
}
}
}
public async Task connectionmaker()
{
var init = new GoogleAuthorizationCodeFlow.Initializer
{
ClientSecrets = new ClientSecrets
{
ClientId = this.dbconf.ClientID,
ClientSecret = this.dbconf.Clientsecret
},
Scopes = new string[] { "https://www.googleapis.com/auth/drive" }
};
var flow = new AuthorizationCodeFlow(init);
Token = await flow.RefreshTokenAsync("user", dbconf.RefreshToken, CancellationToken.None);
credential = GoogleCredential.FromAccessToken(Token.AccessToken);
service = new DriveService(new BaseClientService.Initializer()
{
HttpClientInitializer = credential,
ApplicationName = this.dbconf.ApplicationName,
});
}