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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.Azure.ActiveDirectory.GraphClient;
using Microsoft.Azure.ActiveDirectory.GraphClient.Extensions;
using Microsoft.Azure.Management.Fluent;
using Microsoft.IdentityModel.Clients.ActiveDirectory;
namespace Tango.AzureUtils.ActiveDirectory
{
public class ActiveDirectoryManager : AzureUtilsComponentBase
{
private AuthenticationResult _authResult;
private ActiveDirectoryClient _adClient;
#region Constructors
/// <summary>
/// Initializes a new instance of the <see cref="ActiveDirectoryManager"/> class.
/// </summary>
/// <param name="azure">The azure instance.</param>
public ActiveDirectoryManager(IAzure azure) : base(azure)
{
}
#endregion
#region Private Methods
private ActiveDirectoryClient GetActiveDirectoryClient()
{
if (_adClient == null)
{
var credentials = AzureUtilsAuthenticationFactory.GetGlobalCredentials();
_adClient = new ActiveDirectoryClient(new Uri($"https://graph.windows.net/{credentials.TenantID}"), async () => await Task.FromResult(_authResult.AccessToken));
}
return _adClient;
}
#endregion
#region Public Methods
/// <summary>
/// Authenticates using application credentials.
/// </summary>
/// <param name="credentials">The credentials.</param>
/// <returns></returns>
public async Task Authenticate(AzureUtilsCredentials credentials)
{
if (_authResult == null)
{
var authContext = new AuthenticationContext($"https://login.microsoftonline.com/{credentials.TenantID}");
ClientCredential clientCredentials = new ClientCredential(credentials.ClientID, credentials.ClientSecret);
_authResult = await authContext.AcquireTokenAsync("https://graph.windows.net/", clientCredentials);
}
}
/// <summary>
/// Authenticates using an AD account.
/// </summary>
/// <param name="email">The email.</param>
/// <param name="password">The password.</param>
/// <returns></returns>
public async Task Authenticate(String email, String password)
{
OnProgress(AzureUtilsStage.ActiveDirectory, $"Authenticating with active directory graph...");
if (_authResult == null)
{
var credentials = AzureUtilsAuthenticationFactory.GetGlobalCredentials();
var authContext = new AuthenticationContext($"https://login.microsoftonline.com/{credentials.TenantID}");
authContext.TokenCache.Clear();
UserCredential userCredential = new UserPasswordCredential(email, password);
_authResult = await authContext.AcquireTokenAsync("https://graph.windows.net/", "ec612854-7abc-457b-808a-5d0c5ba80c57", userCredential);
}
}
/// <summary>
/// Determines whether the specified group name exists.
/// </summary>
/// <param name="groupName">Name of the group.</param>
/// <returns></returns>
public async Task<bool> IsGroupExists(String groupName)
{
try
{
var client = GetActiveDirectoryClient();
var g = await client.Groups.Where(x => x.DisplayName == groupName).Take(1).ExecuteSingleAsync();
return g != null;
}
catch
{
return false;
}
}
/// <summary>
/// Adds the specified group.
/// </summary>
/// <param name="groupName">Name of the group.</param>
/// <returns></returns>
public async Task AddGroup(String groupName)
{
OnProgress(AzureUtilsStage.ActiveDirectory, $"Creating group '{groupName}'...");
var client = GetActiveDirectoryClient();
await client.Groups.AddGroupAsync(new Group()
{
DisplayName = groupName,
MailEnabled = false,
MailNickname = Guid.NewGuid().ToString().ToLower(),
SecurityEnabled = true
});
}
/// <summary>
/// Removes the specified group.
/// </summary>
/// <param name="groupName">Name of the group.</param>
/// <returns></returns>
public async Task RemoveGroup(String groupName)
{
OnProgress(AzureUtilsStage.ActiveDirectory, $"Removing group '{groupName}'...");
var client = GetActiveDirectoryClient();
var g = await client.Groups.OfType<Group>().Where(x => x.DisplayName == groupName).Take(1).ExecuteSingleAsync();
await g.DeleteAsync();
}
/// <summary>
/// Adds the specified user to the specified group.
/// </summary>
/// <param name="groupName">Name of the group.</param>
/// <param name="userEmail">The user email.</param>
/// <returns></returns>
public async Task AddUserToGroup(String groupName, String userEmail)
{
OnProgress(AzureUtilsStage.ActiveDirectory, $"Adding environment group user '{userEmail}'...");
var client = GetActiveDirectoryClient();
List<Group> groups = new List<Group>();
var user = await client.Users.Where(x => x.UserPrincipalName == userEmail).ExecuteSingleAsync();
var g = await client.Groups.Where(x => x.DisplayName == groupName).Take(1).ExecuteSingleAsync();
var gg = g as Group;
gg.Members.Add(user as DirectoryObject);
await gg.UpdateAsync();
}
/// <summary>
/// Gets all users.
/// </summary>
/// <returns></returns>
public async Task<List<User>> GetAllUsers()
{
OnProgress(AzureUtilsStage.ActiveDirectory, $"Retrieving active directory users...");
var client = GetActiveDirectoryClient();
List<User> users = new List<User>();
var userPages = await client.Users.OfType<User>().ExecuteAsync();
do
{
List<User> directoryObjects = userPages.CurrentPage.ToList();
foreach (User u in directoryObjects)
{
users.Add(u);
}
userPages = await userPages.GetNextPageAsync();
} while (userPages != null);
return users;
}
public List<Group> GetUserGroups(String email)
{
var client = GetActiveDirectoryClient();
var user = client.Users.Where(x => x.UserPrincipalName == email).ExecuteSingleAsync().Result;
var userFetcher = (IUserFetcher)user;
List<Group> groups = new List<Group>();
IPagedCollection<IDirectoryObject> pagedCollection = userFetcher.MemberOf.ExecuteAsync().Result;
do
{
List<IDirectoryObject> directoryObjects = pagedCollection.CurrentPage.ToList();
foreach (IDirectoryObject directoryObject in directoryObjects)
{
if (directoryObject is Group)
{
var group = directoryObject as Group;
groups.Add(group);
}
}
pagedCollection = pagedCollection.GetNextPageAsync().Result;
} while (pagedCollection != null);
return groups;
}
public bool IsUserMemberOf(String group, String email)
{
return GetUserGroups(email).Exists(x => x.DisplayName == group);
}
#endregion
}
}
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