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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2018 Red Hat, Inc., and individual contributors
 * as indicated by the @author tags.
 * Licensed 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
 *     http://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 org.wildfly.security.ssl;

import static org.wildfly.security.ssl.ElytronMessages.log;

import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;

import javax.net.ssl.SNIHostName;
import javax.net.ssl.SNIMatcher;
import javax.net.ssl.SNIServerName;
import javax.net.ssl.SSLContext;

/**
 * A class which returns a matching SSL context based on the SNI server list provided.
 */
public class SNIContextMatcher {

    private final SSLContext defaultContext;
    private final Map wildcards;
    private final Map exacts;

    SNIContextMatcher(SSLContext defaultContext, Map wildcards, Map exacts) {
        this.defaultContext = defaultContext;
        this.wildcards = wildcards;
        this.exacts = exacts;
    }

    /**
     * Used for finding the matching servers from the server list.
     * Firstly, the exacts are matched, if not found, wildcards are tried.
    */
    public SSLContext getContext(List servers) {
        for (Map.Entry entry : exacts.entrySet()) {
            for (SNIServerName server : servers) {
                if (entry.getKey().matches(server)) {
                    return entry.getValue();
                }
            }
        }
        for (Map.Entry entry : wildcards.entrySet()) {
            for (SNIServerName server : servers) {
                if (entry.getKey().matches(server)) {
                    return entry.getValue();
                }
            }
        }
        return defaultContext;
    }

    public SSLContext getDefaultContext() {
        return defaultContext;
    }

    /**
     * A class which allows building and configuration SNIContextMatcher. The builder, at minimum requres a default SSLContext.
     */
    public static class Builder {

        private SSLContext defaultContext;
        private final Map wildcards = new LinkedHashMap<>();
        private final Map exacts = new LinkedHashMap<>();

        public SNIContextMatcher build() {
            if(defaultContext == null) {
                throw log.defaultContextCannotBeNull();
            }
            return new SNIContextMatcher(defaultContext, wildcards, exacts);
        }

        public SSLContext getDefaultContext() {
            return defaultContext;
        }

        public Builder setDefaultContext(SSLContext defaultContext) {
            this.defaultContext = defaultContext;
            return this;
        }

        public Builder addMatch(String name, SSLContext context) {
            if (name.contains("*")) {
                wildcards.put(SNIHostName.createSNIMatcher(name), context);
            } else {
                exacts.put(SNIHostName.createSNIMatcher(name), context);
            }
            return this;
        }
    }
}