DocSpace-buildtools/common/ASC.ActiveDirectory/Base/LdapNotifyHelper.cs

// (c) Copyright Ascensio System SIA 2010-2022
//
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// of the GNU Affero General Public License (AGPL) version 3 as published by the Free Software
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// to the effect that Ascensio System SIA expressly excludes the warranty of non-infringement of
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using ASC.Notify.Engine;

namespace ASC.ActiveDirectory.Base;
[Singletone(Additional = typeof(DbHelperExtension))]
public class LdapNotifyHelper
{
    public const string CUSTOM_DISTRIBUTED_TASK_QUEUE_NAME = "ldapRegistration";

    private readonly Dictionary<int, Tuple<INotifyClient, LdapNotifySource>> _clients;
    private readonly DistributedTaskQueue _progressQueue;
    private readonly IServiceProvider _serviceProvider;

    public LdapNotifyHelper(
        IServiceProvider serviceProvider,
        IDistributedTaskQueueFactory queueFactory)
    {
        _clients = new Dictionary<int, Tuple<INotifyClient, LdapNotifySource>>();
        _progressQueue = queueFactory.CreateQueue(CUSTOM_DISTRIBUTED_TASK_QUEUE_NAME);
        _serviceProvider = serviceProvider;
    }

    public void RegisterAll()
    {
        var task = new Task(() =>
        {
            using var scope = _serviceProvider.CreateScope();
            var tenantManager = scope.ServiceProvider.GetRequiredService<TenantManager>();
            var settingsManager = scope.ServiceProvider.GetRequiredService<SettingsManager>();
            var dbHelper = scope.ServiceProvider.GetRequiredService<DbHelper>();

            var tenants = tenantManager.GetTenants(dbHelper.GetTenants());
            foreach (var t in tenants)
            {
                var tId = t.Id;

                var ldapSettings = settingsManager.LoadForTenant<LdapSettings>(tId);
                if (!ldapSettings.EnableLdapAuthentication) continue;

                var cronSettings = settingsManager.LoadForTenant<LdapCronSettings>(tId);
                if (string.IsNullOrEmpty(cronSettings.Cron)) continue;

                RegisterAutoSync(t, cronSettings.Cron);
            }
        }, TaskCreationOptions.LongRunning);

        task.Start();
    }

    public void RegisterAutoSync(Tenant tenant, string cron)
    {
        if (!_clients.ContainsKey(tenant.Id))
        {
            using var scope = _serviceProvider.CreateScope();
            var source = new LdapNotifySource(tenant, this);
            var workContext = scope.ServiceProvider.GetRequiredService<WorkContext>();
            var notifyEngineQueue = scope.ServiceProvider.GetRequiredService<NotifyEngineQueue>();
            var client = workContext.NotifyContext.RegisterClient(notifyEngineQueue, source);
            workContext.RegisterSendMethod(source.AutoSync, cron);
            _clients.Add(tenant.Id, new Tuple<INotifyClient, LdapNotifySource>(client, source));
        }
    }

    public void UnregisterAutoSync(Tenant tenant)
    {
        if (_clients.ContainsKey(tenant.Id))
        {
            using var scope = _serviceProvider.CreateScope();
            var workContext = scope.ServiceProvider.GetRequiredService<WorkContext>();
            var client = _clients[tenant.Id];
            workContext.UnregisterSendMethod(client.Item2.AutoSync);
            _clients.Remove(tenant.Id);
        }
    }

    public void AutoSync(Tenant tenant)
    {
        using var scope = _serviceProvider.CreateScope();
        var settingsManager = scope.ServiceProvider.GetRequiredService<SettingsManager>();
        var ldapSettings = settingsManager.LoadForTenant<LdapSettings>(tenant.Id);

        if (!ldapSettings.EnableLdapAuthentication)
        {
            var cronSettings = settingsManager.LoadForTenant<LdapCronSettings>(tenant.Id);
            cronSettings.Cron = "";
            settingsManager.SaveForTenant(cronSettings, tenant.Id);
            UnregisterAutoSync(tenant);
            return;
        }

        var op = scope.ServiceProvider.GetRequiredService<LdapSaveSyncOperation>();

        op.RunJob(ldapSettings, tenant, LdapOperationType.Sync);
    }

    public static class DbHelperExtension
    {
        public static void Register(DIHelper services)
        {
            services.TryAdd<DbHelper>();
        }
    }
}