org.snf4j.tls.engine.EarlyDataContext Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of snf4j-tls Show documentation
The SNF4J module for TLS protocol
The newest version!
/*
 * -------------------------------- MIT License --------------------------------
 * 
 * Copyright (c) 2023 SNF4J contributors
 * 
 * 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 org.snf4j.tls.engine;

import static org.snf4j.tls.engine.EarlyDataState.PROCESSED;
import static org.snf4j.tls.engine.EarlyDataState.PROCESSING;
import static org.snf4j.tls.engine.EarlyDataState.REJECTED;
import static org.snf4j.tls.engine.EarlyDataState.REJECTING;

import org.snf4j.tls.cipher.CipherSuite;

public class EarlyDataContext implements IEarlyDataContext {
	
	private final CipherSuite cipherSuite;

	private EarlyDataState state;
	
	private long sizeCountdown;
		
	public EarlyDataContext(CipherSuite cipherSuite, boolean rejecting, long maxSize) {
		state = rejecting ? REJECTING : PROCESSING;
		this.sizeCountdown = maxSize;
		this.cipherSuite = cipherSuite;
	}

	public EarlyDataContext(CipherSuite cipherSuite, long maxSize) {
		this(cipherSuite, false, maxSize);
	}
	
	@Override
	public EarlyDataState getState() {
		return state;
	}
	
	@Override
	public void complete() {
		if (state == PROCESSING) {
			state = PROCESSED;
		}
		else if (state == REJECTING) {
			state= REJECTED;
		}
	}
	
	@Override
	public void rejecting() {
		if (state == PROCESSING) {
			state = REJECTING;
		}
	}
	
	@Override
	public void incProcessedBytes(int amount) {
		sizeCountdown -= amount;
	}
	
	@Override
	public boolean isSizeLimitExceeded() {
		return sizeCountdown < 0;
	}

	@Override
	public CipherSuite getCipherSuite() {
		return cipherSuite;
	}

}