org.bigloupe.web.filemanager.command.UploadCommand.java Source code

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Here is the source code for org.bigloupe.web.filemanager.command.UploadCommand.java

Source

package org.bigloupe.web.filemanager.command;

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.util.ArrayList;
import java.util.List;

import org.apache.commons.fileupload.FileItemStream;
import org.apache.log4j.Logger;
import org.bigloupe.web.filemanager.ConnectorException;
import org.bigloupe.web.filemanager.FileActionEnum;

/**
 * @author Antoine Walter (www.anw.fr)
 * @date 29 aug. 2011
 * @version $Id$
 * @license BSD
 */
public class UploadCommand extends AbstractCommandOverride {
    private static Logger logger = Logger.getLogger(UploadCommand.class);

    @Override
    public void execute() throws ConnectorException {
        setResponseTextHtml();

        File dirCurrent = getExistingDir(getParam("current"), FileActionEnum.CREATE_FILE);
        if (dirCurrent != null) {

            List<String> listeResponseSelect = new ArrayList<String>();
            try {
                int i = 0;
                for (FileItemStream uplFile : getListFiles()) {
                    String fileName = getUploadedFileName(uplFile);
                    ByteArrayOutputStream os = getListFileStreams().get(i);
                    if (os == null) {
                        throw new ConnectorException("Unable to save uploaded file");
                    }

                    checkUploadFile(fileName, os);

                    File newFile = getNewFile(fileName, dirCurrent, FileActionEnum.WRITE);
                    getFs().createFile(newFile, os);

                    listeResponseSelect.add(_hash(newFile));
                    i++;
                }

            } catch (ConnectorException e) {
                throw e;
            } catch (Exception e) {
                logger.error("", e);
                throw new ConnectorException("Unable to save uploaded file");
            }

            putResponse("select", listeResponseSelect);

            _content(dirCurrent, true);
        }
    }

    /**
     * Allows overriding for some setups...
     * 
     * @param uplFile
     * @return file name for uploaded file
     */
    protected String getUploadedFileName(FileItemStream uplFile) {
        return uplFile.getName();
    }

    protected void checkUploadFile(String fileName, ByteArrayOutputStream os) throws ConnectorException {
        if (!_checkName(fileName)) {
            throw new ConnectorException("Invalid name");
        }
        if (!_isUploadAllow(fileName)) {
            throw new ConnectorException("Not allowed file type");
        }

        // check uploaded size
        int uploadSizeOctets = os.size();
        checkUploadSizes(uploadSizeOctets);
    }

    protected void checkUploadSizes(int uploadSizeOctets) throws ConnectorException {
        // check uploaded file size
        if (uploadSizeOctets > (getConfig().getUploadMaxSize() * 1024 * 1024)) {
            throw new ConnectorException("File exceeds the maximum allowed filesize");
        }

        // check total size
        long totalSizeOctets = getFs().getDirSize(getRootFile());
        if ((totalSizeOctets + uploadSizeOctets) > (getConfig().getUploadMaxSizeTotal() * 1024 * 1024)) {
            throw new ConnectorException("File exceeds the maximum allowed filesize");
        }
    }
}