Package org.structr.websocket.command

Source Code of org.structr.websocket.command.UploadCommand

/**
* Copyright (C) 2010-2014 Morgner UG (haftungsbeschränkt)
*
* This file is part of Structr <http://structr.org>.
*
* Structr is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* Structr 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 Affero General Public License
* along with Structr.  If not, see <http://www.gnu.org/licenses/>.
*/
package org.structr.websocket.command;


import org.structr.websocket.message.MessageBuilder;
import org.structr.websocket.message.WebSocketMessage;
import org.structr.common.SecurityContext;
import org.structr.web.common.FileHelper;
import org.structr.websocket.StructrWebSocket;

//~--- JDK imports ------------------------------------------------------------

import java.util.logging.Logger;
import org.structr.core.entity.AbstractNode;
import org.structr.dynamic.File;

//~--- classes ----------------------------------------------------------------

/**
* Websocket command for uploading files.
*
* This command expects a file name and a base64-encoded string.
*
* @author Axel Morgner
*/
public class UploadCommand extends AbstractCommand {

  private static final Logger logger = Logger.getLogger(UploadCommand.class.getName());

  static {

    StructrWebSocket.addCommand(UploadCommand.class);

  }

  //~--- methods --------------------------------------------------------

  @Override
  public void processMessage(WebSocketMessage webSocketData) {

    final SecurityContext securityContext = getWebSocket().getSecurityContext();

    try {

      final String name    = (String) webSocketData.getNodeData().get("name");
      final String rawData = (String) webSocketData.getNodeData().get("fileData");
      File newFile     = FileHelper.createFileBase64(securityContext, rawData, null);

      newFile.setProperty(AbstractNode.name, name);

    } catch (Throwable t) {

      String msg = t.toString();

      // return error message
      getWebSocket().send(MessageBuilder.status().code(400).message("Could not upload file: ".concat((msg != null)
        ? msg
        : "")).build(), true);

    }
  }

  //~--- get methods ----------------------------------------------------

  @Override
  public String getCommand() {
    return "UPLOAD";
  }
}
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