com.zextras.modules.chat.server.xmpp.StartTLSHandler.java Source code

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Here is the source code for com.zextras.modules.chat.server.xmpp.StartTLSHandler.java

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/*
 * ZAL - The abstraction layer for Zimbra.
 * Copyright (C) 2017 ZeXtras S.r.l.
 *
 * This file is part of ZAL.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation, version 2 of
 * the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with ZAL. If not, see <http://www.gnu.org/licenses/>.
 */

package com.zextras.modules.chat.server.xmpp;

import com.zextras.lib.log.ChatLog;
import com.zextras.modules.chat.server.operations.ChatOperation;
import com.zextras.modules.chat.server.xmpp.netty.StanzaProcessor;
import com.zextras.modules.chat.server.xmpp.xml.SchemaProvider;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;

import javax.xml.stream.XMLStreamException;
import java.io.ByteArrayInputStream;
import java.io.UnsupportedEncodingException;
import java.util.Collections;
import java.util.List;

public class StartTLSHandler implements StanzaHandler {
    private final StanzaProcessor.XmppConnectionHandler mConnectionStatus;

    public StartTLSHandler(StanzaProcessor.XmppConnectionHandler connectionStatus) {
        mConnectionStatus = connectionStatus;
    }

    @Override
    public List<ChatOperation> handle() {
        if (mConnectionStatus.getSession().isUsingSSL()) {
            ChatLog.log.info("Requested TLS initialization when TLS is already initialized");
        } else {
            try {
                ByteBuf buffer = Unpooled
                        .copiedBuffer("<proceed xmlns=\"urn:ietf:params:xml:ns:xmpp-tls\"/>".getBytes("UTF-8"));
                mConnectionStatus.startTLS(buffer);
            } catch (UnsupportedEncodingException ex) {
                throw new RuntimeException();
            }
        }

        return Collections.emptyList();
    }

    @Override
    public void parse(ByteArrayInputStream xmlInputStream, SchemaProvider schemaProvider)
            throws XMLStreamException {
    }
}