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Change guard expressions order 

Check of allowed user sessions count moved to head for avoid unnecessary fetching all user sessions.
This commit is contained in:
Alexander Polozov 2020-10-27 02:30:28 +04:00 committed by Eleftheria Stein-Kousathana
parent 9cf3129d7a
commit a362ab53bc
1 changed files with 7 additions and 7 deletions
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14
web/src/main/java/org/springframework/security/web/authentication/session/ConcurrentSessionControlAuthenticationStrategy.java
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@ -1,5 +1,5 @@
/*
* Copyright 2002-2019 the original author or authors.
* Copyright 2002-2020 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@ -94,17 +94,17 @@ public class ConcurrentSessionControlAuthenticationStrategy
@Override
public void onAuthentication(Authentication authentication, HttpServletRequest request,
HttpServletResponse response) {
List<SessionInformation> sessions = this.sessionRegistry.getAllSessions(authentication.getPrincipal(), false);
int sessionCount = sessions.size();
int allowedSessions = getMaximumSessionsForThisUser(authentication);
if (sessionCount < allowedSessions) {
// They haven't got too many login sessions running at present
return;
}
if (allowedSessions == -1) {
// We permit unlimited logins
return;
}
List<SessionInformation> sessions = this.sessionRegistry.getAllSessions(authentication.getPrincipal(), false);
int sessionCount = sessions.size();
if (sessionCount < allowedSessions) {
// They haven't got too many login sessions running at present
return;
}
if (sessionCount == allowedSessions) {
HttpSession session = request.getSession(false);
if (session != null) {