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Deterministic session management. (#1268)
* Deterministic session management. * Create session collection. * Fix test. * Fix theme test. * Remove wait dbugger.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,77 @@ | ||
| using System; | ||
| using System.Collections.Concurrent; | ||
| using System.Collections.Generic; | ||
| using UniversalDashboard.Models; | ||
|
|
||
| namespace UniversalDashboard.Services | ||
| { | ||
| public interface ISessionManager | ||
| { | ||
| void StartSession(string id); | ||
| void EndSession(string id); | ||
| bool SessionExists(string id); | ||
| SessionState GetSession(string id); | ||
| ConcurrentDictionary<string, SessionState> Sessions { get; } | ||
| void ClearTimedOutSessions(TimeSpan timespan); | ||
| } | ||
|
|
||
| public class SessionManager : ISessionManager | ||
| { | ||
| public ConcurrentDictionary<string, SessionState> Sessions { get; private set; } | ||
|
|
||
| public SessionManager() | ||
| { | ||
| Sessions = new ConcurrentDictionary<string, SessionState>(); | ||
| } | ||
|
|
||
| public void StartSession(string id) | ||
| { | ||
| if (Sessions.ContainsKey(id)) | ||
| { | ||
| var session = Sessions[id]; | ||
| session.LastTouched = DateTime.UtcNow; | ||
| session.Connections++; | ||
| } | ||
| else | ||
| { | ||
| Sessions.TryAdd(id, new SessionState(id)); | ||
| } | ||
| } | ||
|
|
||
| public void EndSession(string id) | ||
| { | ||
| var session = Sessions[id]; | ||
| session.LastTouched = DateTime.UtcNow; | ||
| session.Connections--; | ||
| } | ||
|
|
||
| public bool SessionExists(string id) | ||
| { | ||
| return Sessions.ContainsKey(id); | ||
| } | ||
|
|
||
| public SessionState GetSession(string id) | ||
| { | ||
| var session = Sessions[id]; | ||
| session.LastTouched = DateTime.UtcNow; | ||
| return session; | ||
| } | ||
|
|
||
| public void ClearTimedOutSessions(TimeSpan timespan) | ||
| { | ||
| var toRemove = new List<string>(); | ||
| foreach(var key in Sessions.Keys) | ||
| { | ||
| var session = Sessions[key]; | ||
| if (session.LastTouched < DateTime.UtcNow - timespan) | ||
| { | ||
| toRemove.Add(session.Id); | ||
| } | ||
| } | ||
|
|
||
| toRemove.ForEach(x => { | ||
| Sessions.TryRemove(x, out SessionState value); | ||
| }); | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,17 @@ | ||
| using System; | ||
| using System.Threading.Tasks; | ||
| using Quartz; | ||
| using UniversalDashboard.Execution; | ||
|
|
||
| namespace UniversalDashboard.Services | ||
| { | ||
| public class SessionTimeoutJob : IJob | ||
| { | ||
| public TimeSpan IdleTimeout { get; set; } | ||
| public async Task Execute(IJobExecutionContext context) | ||
| { | ||
| await Task.CompletedTask; | ||
| EndpointService.Instance.SessionManager.ClearTimedOutSessions(IdleTimeout); | ||
| } | ||
| } | ||
| } |