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// Copyright (c) Microsoft. All rights reserved. Licensed under the MIT license. See full license at the bottom of this file.
using Microsoft.IdentityModel.Clients.ActiveDirectory;
using Microsoft.Office365.Discovery;
using Microsoft.Office365.OutlookServices;
using Microsoft.Office365.SharePoint.CoreServices;
using O365_APIs_Start_ASPNET_MVC.Utils;
using O365_APIs_Start_ASPNET_MVC.Models;
using System;
using System.Security.Claims;
using System.Threading.Tasks;
using System.Linq;
namespace O365_APIs_Start_ASPNET_MVC.Helpers
{
// Provides a valid OutlookServices client that contains the bearer token for issuing requests against Calendar, Mail, and Contact resources.
internal class AuthenticationHelper
{
internal static async Task<OutlookServicesClient> EnsureOutlookServicesClientCreatedAsync(string capabilityName)
{
var signInUserId = ClaimsPrincipal.Current.FindFirst(ClaimTypes.NameIdentifier).Value;
var userObjectId = ClaimsPrincipal.Current.FindFirst("http://schemas.microsoft.com/identity/claims/objectidentifier").Value;
AuthenticationContext authContext = new AuthenticationContext(SettingsHelper.Authority, new ADALTokenCache(signInUserId));
try
{
DiscoveryClient discClient = new DiscoveryClient(SettingsHelper.DiscoveryServiceEndpointUri,
async () =>
{
var authResult = await authContext.AcquireTokenSilentAsync(SettingsHelper.DiscoveryServiceResourceId,
new ClientCredential(SettingsHelper.ClientId,
SettingsHelper.ClientSecret),
new UserIdentifier(userObjectId,
UserIdentifierType.UniqueId));
return authResult.AccessToken;
});
var dcr = await discClient.DiscoverCapabilityAsync(capabilityName);
return new OutlookServicesClient(dcr.ServiceEndpointUri,
async () =>
{
var authResult = await authContext.AcquireTokenSilentAsync(dcr.ServiceResourceId,
new ClientCredential(SettingsHelper.ClientId,
SettingsHelper.ClientSecret),
new UserIdentifier(userObjectId,
UserIdentifierType.UniqueId));
return authResult.AccessToken;
});
}
catch (AdalException exception)
{
//Handle token acquisition failure
if (exception.ErrorCode == AdalError.FailedToAcquireTokenSilently)
{
authContext.TokenCache.Clear();
throw exception;
}
return null;
}
}
internal static async Task<SharePointClient> EnsureSharePointClientCreatedAsync(string capabilityName)
{
var signInUserId = ClaimsPrincipal.Current.FindFirst(ClaimTypes.NameIdentifier).Value;
var userObjectId = ClaimsPrincipal.Current.FindFirst("http://schemas.microsoft.com/identity/claims/objectidentifier").Value;
AuthenticationContext authContext = new AuthenticationContext(SettingsHelper.Authority, new ADALTokenCache(signInUserId));
try
{
DiscoveryClient discClient = new DiscoveryClient(SettingsHelper.DiscoveryServiceEndpointUri,
async () =>
{
var authResult = await authContext.AcquireTokenSilentAsync(SettingsHelper.DiscoveryServiceResourceId,
new ClientCredential(SettingsHelper.ClientId,
SettingsHelper.ClientSecret),
new UserIdentifier(userObjectId,
UserIdentifierType.UniqueId));
return authResult.AccessToken;
});
var dcr = await discClient.DiscoverCapabilityAsync(capabilityName);
return new SharePointClient(dcr.ServiceEndpointUri,
async () =>
{
var authResult = await authContext.AcquireTokenSilentAsync(dcr.ServiceResourceId,
new ClientCredential(SettingsHelper.ClientId,
SettingsHelper.ClientSecret),
new UserIdentifier(userObjectId,
UserIdentifierType.UniqueId));
return authResult.AccessToken;
});
}
catch (AdalException exception)
{
//Partially handle token acquisition failure here and bubble it up to the controller
if (exception.ErrorCode == AdalError.FailedToAcquireTokenSilently)
{
authContext.TokenCache.Clear();
throw exception;
}
return null;
}
}
}
}
//*********************************************************
//
//O365 APIs Starter Project for ASPNET MVC, https://github.com/OfficeDev/Office-365-APIs-Starter-Project-for-ASPNETMVC
//
//Copyright (c) Microsoft Corporation
//All rights reserved.
//
//MIT License:
//
//Permission is hereby granted, free of charge, to any person obtaining
//a copy of this software and associated documentation files (the
//""Software""), to deal in the Software without restriction, including
//without limitation the rights to use, copy, modify, merge, publish,
//distribute, sublicense, and/or sell copies of the Software, and to
//permit persons to whom the Software is furnished to do so, subject to
//the following conditions:
//
//The above copyright notice and this permission notice shall be
//included in all copies or substantial portions of the Software.
//
//THE SOFTWARE IS PROVIDED ""AS IS"", WITHOUT WARRANTY OF ANY KIND,
//EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
//MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
//NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
//LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
//OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
//WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//*********************************************************