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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 2016 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.sasl.oauth2;

import org.kohsuke.MetaInfServices;
import org.wildfly.security.mechanism._private.ElytronMessages;
import org.wildfly.security.mechanism.oauth2.OAuth2Client;
import org.wildfly.security.sasl.WildFlySasl;
import org.wildfly.security.sasl.util.SaslMechanismInformation;

import javax.security.auth.callback.CallbackHandler;
import javax.security.sasl.Sasl;
import javax.security.sasl.SaslClient;
import javax.security.sasl.SaslClientFactory;
import javax.security.sasl.SaslException;
import java.util.Map;

/**
 * A {@link SaslClientFactory} for OAuth2.
 *
 * @author Pedro Igor
 */
@MetaInfServices(value = SaslClientFactory.class)
public final class OAuth2SaslClientFactory implements SaslClientFactory {

    public SaslClient createSaslClient(final String[] mechanisms, final String authorizationId, final String protocol, final String serverName, final Map props, final CallbackHandler cbh) throws SaslException {
        if (getMechanismNames(props, false).length == 0) return null;

        for (String mechanism : mechanisms) {
            if (SaslMechanismInformation.Names.OAUTHBEARER.equals(mechanism)) {
                return new OAuth2SaslClient(mechanism, protocol, serverName, cbh, authorizationId, new OAuth2Client(authorizationId, cbh, ElytronMessages.saslOAuth2));
            }
        }

        return null;
    }

    private String[] getMechanismNames(final Map props, boolean query) {
        if (props == null) {
            return new String[] {SaslMechanismInformation.Names.OAUTHBEARER};
        }

        if ("true".equals(props.get(WildFlySasl.MECHANISM_QUERY_ALL)) && query) {
            return new String[] {SaslMechanismInformation.Names.OAUTHBEARER};
        }

        if ("true".equals(props.get(Sasl.POLICY_NOPLAINTEXT))
                || "true".equals(props.get(Sasl.POLICY_NOACTIVE))
                || "true".equals(props.get(Sasl.POLICY_NODICTIONARY))) {
            return new String[] {};
        }

        return new String[] {SaslMechanismInformation.Names.OAUTHBEARER};
    }

    @Override
    public String[] getMechanismNames(Map props) {
        return getMechanismNames(props, true);
    }


}