se.kth.iss.ug2server.SessionKey Maven / Gradle / Ivy
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A stand-alone Maven UgClient package separated from the UG server.
/*
* MIT License
*
* Copyright (c) 2017 Kungliga Tekniska högskolan
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package se.kth.iss.ug2server;
import java.time.Duration;
import java.time.Instant;
/**
* Describes a session key.
*/
public class SessionKey {
public static final int SESSION_KEY_AGE_MAX = 36;
private final byte[] key;
private final long keyVersion;
private final Instant creationTime;
public SessionKey(byte[] key, long keyVersion, Instant creationTime) {
this.key = key;
this.keyVersion = keyVersion;
this.creationTime = creationTime;
}
public byte[] getKey() {
return key;
}
public long getKeyVersion() {
return keyVersion;
}
public boolean expired() {
return creationTime.plusSeconds(SESSION_KEY_AGE_MAX).isBefore(Instant.now());
}
public long getAge() {
return Duration.between(creationTime, Instant.now()).toMillis();
}
public boolean isOld() {
return creationTime.plusSeconds(SESSION_KEY_AGE_MAX / 7).isBefore(Instant.now());
}
}
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