com.chaosinmotion.securechat.server.commands.SendMessages.java Source code

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Here is the source code for com.chaosinmotion.securechat.server.commands.SendMessages.java

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/*   SecureChat: A secure chat system which permits secure communications 
 *  between iOS devices and a back-end server.
 *
 *   Copyright  2016 by William Edward Woody
 *
 *   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, either version 3 of the License, or (at your 
 *   option) any later version.
 *
 *   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 this program. If not, see <http://www.gnu.org/licenses/>
 */

package com.chaosinmotion.securechat.server.commands;

import java.io.IOException;
import java.sql.SQLException;
import org.json.JSONArray;
import org.json.JSONObject;
import com.chaosinmotion.securechat.server.json.ReturnResult;
import com.chaosinmotion.securechat.server.json.SimpleReturnResult;
import com.chaosinmotion.securechat.server.messages.MessageQueue;
import com.chaosinmotion.securechat.server.utils.Base64;

/**
 * Send message.
 * @author woody
 *
 */
public class SendMessages {
    /*
     * Note: sentflag indicates the sender is the receiver of the message.
     * (That is, this message is being sent to the the owner of deviceid from
     * the specified user.)
     */
    public static ReturnResult processRequest(Login.UserInfo userinfo, JSONObject requestParams)
            throws ClassNotFoundException, SQLException, IOException {
        int messageid = 0;

        JSONArray array = requestParams.optJSONArray("messages");
        int i, len = array.length();
        for (i = 0; i < len; ++i) {
            JSONObject mrecord = array.getJSONObject(i);
            String checksum = mrecord.optString("checksum");
            String message = mrecord.optString("message");
            String deviceid = mrecord.optString("deviceid");
            int destuser = mrecord.optInt("destuser");

            byte[] mdata = Base64.decode(message);

            /*
             * If destuser is not provided, then this indicates that the
             * current logged in user is sending a message *to* the device's
             * owner. The 'toflag' is set, meaning the device is owned by
             * the user in userinfo, the message is being sent to the
             * destuser.
             */
            if (destuser == 0) {
                MessageQueue.getInstance().enqueue(userinfo.getUserID(), deviceid, false, mdata, checksum);
            } else {
                messageid = MessageQueue.getInstance().enqueue(destuser, deviceid, true, mdata, checksum);
            }
        }
        return new SimpleReturnResult("messageid", messageid);
    }

}