643 lines
25 KiB
C#
643 lines
25 KiB
C#
/*
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*
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* (c) Copyright Ascensio System Limited 2010-2018
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*
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* This program is freeware. You can redistribute it and/or modify it under the terms of the GNU
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* General Public License (GPL) version 3 as published by the Free Software Foundation (https://www.gnu.org/copyleft/gpl.html).
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* In accordance with Section 7(a) of the GNU GPL its Section 15 shall be amended to the effect that
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* Ascensio System SIA expressly excludes the warranty of non-infringement of any third-party rights.
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*
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* THIS PROGRAM IS DISTRIBUTED WITHOUT ANY WARRANTY; WITHOUT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY OR
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* FITNESS FOR A PARTICULAR PURPOSE. For more details, see GNU GPL at https://www.gnu.org/copyleft/gpl.html
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*
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* You can contact Ascensio System SIA by email at sales@onlyoffice.com
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*
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* The interactive user interfaces in modified source and object code versions of ONLYOFFICE must display
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* Appropriate Legal Notices, as required under Section 5 of the GNU GPL version 3.
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*
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* Pursuant to Section 7 § 3(b) of the GNU GPL you must retain the original ONLYOFFICE logo which contains
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* relevant author attributions when distributing the software. If the display of the logo in its graphic
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* form is not reasonably feasible for technical reasons, you must include the words "Powered by ONLYOFFICE"
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* in every copy of the program you distribute.
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* Pursuant to Section 7 § 3(e) we decline to grant you any rights under trademark law for use of our trademarks.
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*
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*/
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Threading;
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using System.Threading.Tasks;
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using ASC.Common.Logging;
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using ASC.Common.Notify.Patterns;
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using ASC.Notify.Channels;
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using ASC.Notify.Cron;
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using ASC.Notify.Messages;
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using ASC.Notify.Patterns;
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using ASC.Notify.Recipients;
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using Microsoft.Extensions.DependencyInjection;
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using Microsoft.Extensions.Options;
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namespace ASC.Notify.Engine
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{
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public class NotifyEngine : INotifyEngine
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{
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private readonly ILog log;
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private readonly Context context;
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private readonly List<SendMethodWrapper> sendMethods = new List<SendMethodWrapper>();
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private readonly Queue<NotifyRequest> requests = new Queue<NotifyRequest>(1000);
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private readonly Thread notifyScheduler;
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private readonly Thread notifySender;
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private readonly AutoResetEvent requestsEvent = new AutoResetEvent(false);
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private readonly AutoResetEvent methodsEvent = new AutoResetEvent(false);
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private readonly Dictionary<string, IPatternStyler> stylers = new Dictionary<string, IPatternStyler>();
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private readonly IPatternFormatter sysTagFormatter = new ReplacePatternFormatter(@"_#(?<tagName>[A-Z0-9_\-.]+)#_", true);
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private readonly TimeSpan defaultSleep = TimeSpan.FromSeconds(10);
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private IServiceProvider ServiceProvider { get; }
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public event Action<NotifyEngine, NotifyRequest, IServiceScope> BeforeTransferRequest;
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public event Action<NotifyEngine, NotifyRequest, IServiceScope> AfterTransferRequest;
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public NotifyEngine(Context context, IServiceProvider serviceProvider)
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{
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this.context = context ?? throw new ArgumentNullException(nameof(context));
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log = serviceProvider.GetService<IOptionsMonitor<ILog>>().Get("ASC.Notify");
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ServiceProvider = serviceProvider;
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notifyScheduler = new Thread(NotifyScheduler) { IsBackground = true, Name = "NotifyScheduler" };
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notifySender = new Thread(NotifySender) { IsBackground = true, Name = "NotifySender" };
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}
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public virtual void QueueRequest(NotifyRequest request, IServiceScope serviceScope)
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{
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BeforeTransferRequest?.Invoke(this, request, serviceScope);
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lock (requests)
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{
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if (!notifySender.IsAlive)
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{
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notifySender.Start();
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}
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requests.Enqueue(request);
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}
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requestsEvent.Set();
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}
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internal void RegisterSendMethod(Action<DateTime> method, string cron)
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{
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if (method == null) throw new ArgumentNullException(nameof(method));
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if (string.IsNullOrEmpty(cron)) throw new ArgumentNullException(nameof(cron));
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var w = new SendMethodWrapper(method, cron, log);
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lock (sendMethods)
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{
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if (!notifyScheduler.IsAlive)
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{
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notifyScheduler.Start();
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}
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sendMethods.Remove(w);
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sendMethods.Add(w);
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}
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methodsEvent.Set();
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}
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internal void UnregisterSendMethod(Action<DateTime> method)
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{
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if (method == null) throw new ArgumentNullException(nameof(method));
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lock (sendMethods)
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{
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sendMethods.Remove(new SendMethodWrapper(method, null, log));
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}
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}
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private void NotifyScheduler(object state)
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{
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try
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{
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while (true)
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{
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var min = DateTime.MaxValue;
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var now = DateTime.UtcNow;
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List<SendMethodWrapper> copy;
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lock (sendMethods)
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{
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copy = sendMethods.ToList();
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}
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foreach (var w in copy)
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{
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if (!w.ScheduleDate.HasValue)
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{
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lock (sendMethods)
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{
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sendMethods.Remove(w);
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}
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}
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if (w.ScheduleDate.Value <= now)
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{
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try
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{
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w.InvokeSendMethod(now);
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}
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catch (Exception error)
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{
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log.Error(error);
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}
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w.UpdateScheduleDate(now);
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}
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if (w.ScheduleDate.Value > now && w.ScheduleDate.Value < min)
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{
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min = w.ScheduleDate.Value;
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}
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}
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var wait = min != DateTime.MaxValue ? min - DateTime.UtcNow : defaultSleep;
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if (wait < defaultSleep)
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{
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wait = defaultSleep;
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}
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else if (wait.Ticks > int.MaxValue)
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{
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wait = TimeSpan.FromTicks(int.MaxValue);
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}
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methodsEvent.WaitOne(wait, false);
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}
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}
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catch (ThreadAbortException)
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{
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return;
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}
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catch (Exception e)
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{
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log.Error(e);
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}
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}
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private void NotifySender(object state)
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{
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try
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{
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while (true)
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{
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NotifyRequest request = null;
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lock (requests)
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{
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if (requests.Count > 0)
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{
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request = requests.Dequeue();
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}
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}
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if (request != null)
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{
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using var scope = ServiceProvider.CreateScope();
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AfterTransferRequest?.Invoke(this, request, scope);
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try
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{
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SendNotify(request, scope);
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}
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catch (Exception e)
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{
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log.Error(e);
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}
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}
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else
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{
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requestsEvent.WaitOne();
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}
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}
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}
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catch (ThreadAbortException)
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{
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return;
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}
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catch (Exception e)
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{
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log.Error(e);
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}
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}
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private NotifyResult SendNotify(NotifyRequest request, IServiceScope serviceScope)
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{
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var sendResponces = new List<SendResponse>();
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var response = CheckPreventInterceptors(request, InterceptorPlace.Prepare, serviceScope, null);
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if (response != null)
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{
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sendResponces.Add(response);
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}
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else
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{
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sendResponces.AddRange(SendGroupNotify(request, serviceScope));
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}
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NotifyResult result;
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if (sendResponces.Count == 0)
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{
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result = new NotifyResult(SendResult.OK, sendResponces);
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}
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else
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{
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result = new NotifyResult(sendResponces.Aggregate((SendResult)0, (s, r) => r.Result), sendResponces);
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}
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log.Debug(result);
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return result;
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}
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private SendResponse CheckPreventInterceptors(NotifyRequest request, InterceptorPlace place, IServiceScope serviceScope, string sender)
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{
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return request.Intercept(place, serviceScope) ? new SendResponse(request.NotifyAction, sender, request.Recipient, SendResult.Prevented) : null;
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}
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private List<SendResponse> SendGroupNotify(NotifyRequest request, IServiceScope serviceScope)
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{
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var responces = new List<SendResponse>();
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SendGroupNotify(request, responces, serviceScope);
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return responces;
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}
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private void SendGroupNotify(NotifyRequest request, List<SendResponse> responces, IServiceScope serviceScope)
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{
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if (request.Recipient is IDirectRecipient)
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{
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var subscriptionSource = request.GetSubscriptionProvider(serviceScope);
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if (!request.IsNeedCheckSubscriptions || !subscriptionSource.IsUnsubscribe(request.Recipient as IDirectRecipient, request.NotifyAction, request.ObjectID))
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{
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var directresponses = new List<SendResponse>(1);
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try
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{
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directresponses = SendDirectNotify(request, serviceScope);
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}
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catch (Exception exc)
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{
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directresponses.Add(new SendResponse(request.NotifyAction, request.Recipient, exc));
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}
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responces.AddRange(directresponses);
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}
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}
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else
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{
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if (request.Recipient is IRecipientsGroup)
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{
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var checkresp = CheckPreventInterceptors(request, InterceptorPlace.GroupSend, serviceScope, null);
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if (checkresp != null)
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{
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responces.Add(checkresp);
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}
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else
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{
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var recipientProvider = request.GetRecipientsProvider(serviceScope);
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try
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{
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var recipients = recipientProvider.GetGroupEntries(request.Recipient as IRecipientsGroup) ?? new IRecipient[0];
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foreach (var recipient in recipients)
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{
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try
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{
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var newRequest = request.Split(recipient);
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SendGroupNotify(newRequest, responces, serviceScope);
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}
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catch (Exception exc)
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{
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responces.Add(new SendResponse(request.NotifyAction, request.Recipient, exc));
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}
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}
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}
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catch (Exception exc)
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{
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responces.Add(new SendResponse(request.NotifyAction, request.Recipient, exc) { Result = SendResult.IncorrectRecipient });
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}
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}
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}
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else
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{
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responces.Add(new SendResponse(request.NotifyAction, request.Recipient, null)
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{
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Result = SendResult.IncorrectRecipient,
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Exception = new NotifyException("recipient may be IRecipientsGroup or IDirectRecipient")
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});
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}
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}
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}
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private List<SendResponse> SendDirectNotify(NotifyRequest request, IServiceScope serviceScope)
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{
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if (!(request.Recipient is IDirectRecipient)) throw new ArgumentException("request.Recipient not IDirectRecipient", nameof(request));
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var responses = new List<SendResponse>();
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var response = CheckPreventInterceptors(request, InterceptorPlace.DirectSend, serviceScope, null);
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if (response != null)
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{
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responses.Add(response);
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return responses;
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}
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try
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{
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PrepareRequestFillSenders(request, serviceScope);
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PrepareRequestFillPatterns(request, serviceScope);
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PrepareRequestFillTags(request, serviceScope);
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}
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catch (Exception ex)
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{
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responses.Add(new SendResponse(request.NotifyAction, null, request.Recipient, SendResult.Impossible));
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log.Error("Prepare", ex);
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}
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if (request.SenderNames != null && request.SenderNames.Length > 0)
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{
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foreach (var sendertag in request.SenderNames)
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{
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var channel = context.NotifyService.GetSender(sendertag);
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if (channel != null)
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{
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try
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{
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response = SendDirectNotify(request, channel, serviceScope);
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}
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catch (Exception exc)
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{
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response = new SendResponse(request.NotifyAction, channel.SenderName, request.Recipient, exc);
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}
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}
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else
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{
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response = new SendResponse(request.NotifyAction, sendertag, request.Recipient, new NotifyException($"Not registered sender \"{sendertag}\"."));
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}
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responses.Add(response);
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}
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}
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else
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{
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response = new SendResponse(request.NotifyAction, request.Recipient, new NotifyException("Notice hasn't any senders."));
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responses.Add(response);
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}
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return responses;
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}
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private SendResponse SendDirectNotify(NotifyRequest request, ISenderChannel channel, IServiceScope serviceScope)
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{
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if (!(request.Recipient is IDirectRecipient)) throw new ArgumentException("request.Recipient not IDirectRecipient", nameof(request));
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request.CurrentSender = channel.SenderName;
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var oops = CreateNoticeMessageFromNotifyRequest(request, channel.SenderName, serviceScope, out var noticeMessage);
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if (oops != null) return oops;
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request.CurrentMessage = noticeMessage;
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var preventresponse = CheckPreventInterceptors(request, InterceptorPlace.MessageSend, serviceScope, channel.SenderName);
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if (preventresponse != null) return preventresponse;
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channel.SendAsync(noticeMessage);
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return new SendResponse(noticeMessage, channel.SenderName, SendResult.Inprogress);
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}
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private SendResponse CreateNoticeMessageFromNotifyRequest(NotifyRequest request, string sender, IServiceScope serviceScope, out NoticeMessage noticeMessage)
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{
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if (request == null) throw new ArgumentNullException(nameof(request));
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var recipientProvider = request.GetRecipientsProvider(serviceScope);
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var recipient = request.Recipient as IDirectRecipient;
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var addresses = recipient.Addresses;
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if (addresses == null || addresses.Length == 0)
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{
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addresses = recipientProvider.GetRecipientAddresses(request.Recipient as IDirectRecipient, sender);
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recipient = new DirectRecipient(request.Recipient.ID, request.Recipient.Name, addresses);
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}
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recipient = recipientProvider.FilterRecipientAddresses(recipient);
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noticeMessage = request.CreateMessage(recipient);
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addresses = recipient.Addresses;
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if (addresses == null || !addresses.Any(a => !string.IsNullOrEmpty(a)))
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{
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//checking addresses
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return new SendResponse(request.NotifyAction, sender, recipient, new NotifyException(string.Format("For recipient {0} by sender {1} no one addresses getted.", recipient, sender)));
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}
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var pattern = request.GetSenderPattern(sender);
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if (pattern == null)
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{
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return new SendResponse(request.NotifyAction, sender, recipient, new NotifyException(string.Format("For action \"{0}\" by sender \"{1}\" no one patterns getted.", request.NotifyAction, sender)));
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}
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noticeMessage.Pattern = pattern;
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noticeMessage.ContentType = pattern.ContentType;
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noticeMessage.AddArgument(request.Arguments.ToArray());
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var patternProvider = request.GetPatternProvider(serviceScope);
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var formatter = patternProvider.GetFormatter(pattern);
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try
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{
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if (formatter != null)
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{
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formatter.FormatMessage(noticeMessage, noticeMessage.Arguments);
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}
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sysTagFormatter.FormatMessage(
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noticeMessage, new[]
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{
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new TagValue(Context._SYS_RECIPIENT_ID, request.Recipient.ID),
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new TagValue(Context._SYS_RECIPIENT_NAME, request.Recipient.Name),
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new TagValue(Context._SYS_RECIPIENT_ADDRESS, addresses != null && addresses.Length > 0 ? addresses[0] : null)
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}
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);
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//Do styling here
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if (!string.IsNullOrEmpty(pattern.Styler))
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{
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//We need to run through styler before templating
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StyleMessage(serviceScope, noticeMessage);
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}
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}
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catch (Exception exc)
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{
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return new SendResponse(request.NotifyAction, sender, recipient, exc);
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}
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return null;
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}
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private void StyleMessage(IServiceScope scope, NoticeMessage message)
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{
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try
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{
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if (!stylers.ContainsKey(message.Pattern.Styler))
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{
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if (scope.ServiceProvider.GetService(Type.GetType(message.Pattern.Styler, true)) is IPatternStyler styler)
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{
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stylers.Add(message.Pattern.Styler, styler);
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}
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}
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stylers[message.Pattern.Styler].ApplyFormating(message);
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}
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catch (Exception exc)
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{
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log.Warn("error styling message", exc);
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}
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}
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private void PrepareRequestFillSenders(NotifyRequest request, IServiceScope serviceScope)
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{
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if (request.SenderNames == null)
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{
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var subscriptionProvider = request.GetSubscriptionProvider(serviceScope);
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var senderNames = new List<string>();
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senderNames.AddRange(subscriptionProvider.GetSubscriptionMethod(request.NotifyAction, request.Recipient) ?? Array.Empty<string>());
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senderNames.AddRange(request.Arguments.OfType<AdditionalSenderTag>().Select(tag => (string)tag.Value));
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request.SenderNames = senderNames.ToArray();
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}
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}
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private void PrepareRequestFillPatterns(NotifyRequest request, IServiceScope serviceScope)
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{
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if (request.Patterns == null)
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{
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request.Patterns = new IPattern[request.SenderNames.Length];
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if (request.Patterns.Length == 0) return;
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var apProvider = request.GetPatternProvider(serviceScope);
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for (var i = 0; i < request.SenderNames.Length; i++)
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{
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var senderName = request.SenderNames[i];
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IPattern pattern = null;
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if (apProvider.GetPatternMethod != null)
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{
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pattern = apProvider.GetPatternMethod(request.NotifyAction, senderName, request);
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}
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if (pattern == null)
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{
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pattern = apProvider.GetPattern(request.NotifyAction, senderName);
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}
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request.Patterns[i] = pattern ?? throw new NotifyException($"For action \"{request.NotifyAction.ID}\" by sender \"{senderName}\" no one patterns getted.");
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}
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}
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}
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private void PrepareRequestFillTags(NotifyRequest request, IServiceScope serviceScope)
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{
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var patternProvider = request.GetPatternProvider(serviceScope);
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foreach (var pattern in request.Patterns)
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{
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IPatternFormatter formatter;
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try
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{
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formatter = patternProvider.GetFormatter(pattern);
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}
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catch (Exception exc)
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{
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throw new NotifyException(string.Format("For pattern \"{0}\" formatter not instanced.", pattern), exc);
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}
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var tags = Array.Empty<string>();
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try
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{
|
|
if (formatter != null)
|
|
{
|
|
tags = formatter.GetTags(pattern) ?? Array.Empty<string>();
|
|
}
|
|
}
|
|
catch (Exception exc)
|
|
{
|
|
throw new NotifyException(string.Format("Get tags from formatter of pattern \"{0}\" failed.", pattern), exc);
|
|
}
|
|
|
|
foreach (var tag in tags.Where(tag => !request.Arguments.Exists(tagValue => Equals(tagValue.Tag, tag)) && !request.RequaredTags.Exists(rtag => Equals(rtag, tag))))
|
|
{
|
|
request.RequaredTags.Add(tag);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
private sealed class SendMethodWrapper
|
|
{
|
|
private readonly object locker = new object();
|
|
private readonly CronExpression cronExpression;
|
|
private readonly Action<DateTime> method;
|
|
|
|
public DateTime? ScheduleDate { get; private set; }
|
|
public ILog Log { get; }
|
|
|
|
public SendMethodWrapper(Action<DateTime> method, string cron, ILog log)
|
|
{
|
|
this.method = method;
|
|
Log = log;
|
|
if (!string.IsNullOrEmpty(cron))
|
|
{
|
|
this.cronExpression = new CronExpression(cron);
|
|
}
|
|
UpdateScheduleDate(DateTime.UtcNow);
|
|
}
|
|
|
|
public void UpdateScheduleDate(DateTime d)
|
|
{
|
|
try
|
|
{
|
|
if (cronExpression != null)
|
|
{
|
|
ScheduleDate = cronExpression.GetTimeAfter(d);
|
|
}
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
Log.Error(e);
|
|
}
|
|
}
|
|
|
|
public void InvokeSendMethod(DateTime d)
|
|
{
|
|
lock (locker)
|
|
{
|
|
Task.Run(() =>
|
|
{
|
|
try
|
|
{
|
|
method(d);
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
Log.Error(e);
|
|
}
|
|
}).Wait();
|
|
}
|
|
}
|
|
|
|
public override bool Equals(object obj)
|
|
{
|
|
return obj is SendMethodWrapper w && method.Equals(w.method);
|
|
}
|
|
|
|
public override int GetHashCode()
|
|
{
|
|
return method.GetHashCode();
|
|
}
|
|
}
|
|
}
|
|
}
|