org.entcore.infra.services.impl.ExecCommandWorker.java Source code

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Here is the source code for org.entcore.infra.services.impl.ExecCommandWorker.java

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/*
 * Copyright  "Open Digital Education", 2017
 *
 * This program is published by "Open Digital Education".
 * You must indicate the name of the software and the company in any production /contribution
 * using the software and indicate on the home page of the software industry in question,
 * "powered by Open Digital Education" with a reference to the website: https://opendigitaleducation.com/.
 *
 * This program is free software, licensed under the terms of the GNU Affero General Public License
 * as published by the Free Software Foundation, version 3 of the License.
 *
 * You can redistribute this application and/or modify it since you respect the terms of the GNU Affero General Public License.
 * If you modify the source code and then use this modified source code in your creation, you must make available the source code of your modifications.
 *
 * You should have received a copy of the GNU Affero General Public License along with the software.
 * If not, please see : <http://www.gnu.org/licenses/>. Full compliance requires reading the terms of this license and following its directives.
    
 */

package org.entcore.infra.services.impl;

import io.vertx.core.Handler;
import io.vertx.core.eventbus.Message;
import io.vertx.core.json.JsonObject;
import org.vertx.java.busmods.BusModBase;

import java.io.BufferedReader;
import java.io.InputStreamReader;

import static fr.wseduc.webutils.Utils.isEmpty;

public class ExecCommandWorker extends BusModBase implements Handler<Message<JsonObject>> {

    @Override
    public void start() {
        super.start();
        vertx.eventBus().localConsumer("exec.command", this);
    }

    @Override
    public void handle(Message<JsonObject> event) {
        String command = event.body().getString("command");
        if (isEmpty(command)) {
            sendError(event, "Invalid command");
            return;
        }
        try {
            Process p = Runtime.getRuntime().exec(command);
            p.waitFor();

            BufferedReader reader = new BufferedReader(new InputStreamReader(p.getInputStream()));
            StringBuilder sb = new StringBuilder();
            String line = "";
            while ((line = reader.readLine()) != null) {
                sb.append(line).append("\n");
            }
            sendOK(event, new JsonObject().put("result", sb.toString()));
        } catch (Exception e) {
            sendError(event, "Error executing command : " + command, e);
        }
    }

}