OpenSslSessionCache.java — netty Source File

Source Code

/*
 * Copyright 2021 The Netty Project
 *
 * The Netty Project licenses this file to you under the Apache License,
 * version 2.0 (the "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at:
 *
 *   https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */
package io.netty.handler.ssl;

import io.netty.internal.tcnative.SSLSession;
import io.netty.internal.tcnative.SSLSessionCache;
import io.netty.util.ResourceLeakDetector;
import io.netty.util.ResourceLeakDetectorFactory;
import io.netty.util.ResourceLeakTracker;
import io.netty.util.internal.EmptyArrays;
import io.netty.util.internal.SystemPropertyUtil;

import javax.security.cert.X509Certificate;
import java.security.Principal;
import java.security.cert.Certificate;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.atomic.AtomicInteger;

/**
 * {@link SSLSessionCache} implementation for our native SSL implementation.
 */
class OpenSslSessionCache implements SSLSessionCache {
    private static final OpenSslInternalSession[] EMPTY_SESSIONS = new OpenSslInternalSession[0];

    private static final int DEFAULT_CACHE_SIZE;
    static {
        // Respect the same system property as the JDK implementation to make it easy to switch between implementations.
        int cacheSize = SystemPropertyUtil.getInt("javax.net.ssl.sessionCacheSize", 20480);
        if (cacheSize >= 0) {
            DEFAULT_CACHE_SIZE = cacheSize;
        } else {
            DEFAULT_CACHE_SIZE = 20480;
        }
    }
    private final Map<Long, ReferenceCountedOpenSslEngine> engines;

    private final Map<OpenSslSessionId, NativeSslSession> sessions =
            new LinkedHashMap<OpenSslSessionId, NativeSslSession>() {

                private static final long serialVersionUID = -7773696788135734448L;

                @Override
                protected boolean removeEldestEntry(Map.Entry<OpenSslSessionId, NativeSslSession> eldest) {
// ... (467 more lines)