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ServiceAccount.cs
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ServiceAccount.cs
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// Copyright 2017 DAIMTO : www.daimto.com
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
// the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
// an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
// specific language governing permissions and limitations under the License.
//------------------------------------------------------------------------------
// <auto-generated>
// This code was generated by DAIMTO-Google-apis-Sample-generator 1.0.0
// Template File Name: ServiceAccount.tt
// Build date: 01/02/2017 22:32:48
// C# generater version: 1.0.0
//
// Changes to this file may cause incorrect behavior and will be lost if
// the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------
// About
//
// Unoffical sample for the Drive v3 API for C#.
// This sample is designed to be used with the Google .Net client library. (https://github.com/google/google-api-dotnet-client)
//
// API Description: Manages files in Drive including uploading, downloading, searching, detecting changes, and updating sharing permissions.
// API Documentation Link https://developers.google.com/drive/
//
// Discovery Doc https://www.googleapis.com/discovery/v1/apis/Drive/v3/rest
//
//------------------------------------------------------------------------------
// Installation
//
// This sample code uses the Google .Net client library
//
// NuGet package:
//
// Location: https://www.nuget.org/packages/Google.Apis.Drive.v3/
// Install Command: PM> Install-Package Google.Apis.Drive.v3
//
//------------------------------------------------------------------------------
using Google.Apis.Drive.v3
using Google.Apis.Auth.OAuth2;
using Google.Apis.Services;
using System;
using System.IO;
using System.Security.Cryptography.X509Certificates;
namespace GoogleSamplecSharpSample.Drivev3.Auth
{
public class static ServiceAccountExample
{
/// <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="serviceAccountCredentialFilePath">Location of the .p12 or Json Service account key file downloaded from Google Developer console https://console.developers.google.com</param>
/// <returns>AnalyticsService used to make requests against the Analytics API</returns>
public static DriveService AuthenticateServiceAccount(string serviceAccountEmail, string serviceAccountCredentialFilePath)
{
try
{
if (string.IsNullOrEmpty(serviceAccountCredentialFilePath))
throw new Exception("Path to the service account credentials file is required.");
if (!File.Exists(serviceAccountCredentialFilePath))
throw new Exception("The service account credentials file does not exist at: " + serviceAccountCredentialFilePath);
if (string.IsNullOrEmpty(serviceAccountEmail))
throw new Exception("ServiceAccountEmail is required.");
// These are the scopes of permissions you need. It is best to request only what you need and not all of them
string[] scopes = new string[] { AnalyticsReportingService.Scope.Analytics }; // View your Google Analytics data
// For Json file
if (Path.GetExtension(serviceAccountCredentialFilePath).ToLower() == ".json")
{
GoogleCredential credential;
using (var stream = new FileStream(serviceAccountCredentialFilePath, FileMode.Open, FileAccess.Read))
{
credential = GoogleCredential.FromStream(stream)
.CreateScoped(scopes);
}
// Create the Analytics service.
return new DriveService(new BaseClientService.Initializer()
{
HttpClientInitializer = credential,
ApplicationName = "Drive Service account Authentication Sample",
});
}
else if (Path.GetExtension(serviceAccountCredentialFilePath).ToLower() == ".p12")
{ // If its a P12 file
var certificate = new X509Certificate2(serviceAccountCredentialFilePath, "notasecret", X509KeyStorageFlags.MachineKeySet | X509KeyStorageFlags.Exportable);
var credential = new ServiceAccountCredential(new ServiceAccountCredential.Initializer(serviceAccountEmail)
{
Scopes = scopes
}.FromCertificate(certificate));
// Create the Drive service.
return new DriveService(new BaseClientService.Initializer()
{
HttpClientInitializer = credential,
ApplicationName = "Drive Authentication Sample",
});
}
else
{
throw new Exception("Unsupported Service accounts credentials.");
}
}
catch (Exception ex)
{
Console.WriteLine("Create service account DriveService failed" + ex.Message);
throw new Exception("CreateServiceAccountDriveFailed", ex);
}
}
}
}