com.liferay.journal.web.internal.upload.ImageJournalUploadHandler.java Source code

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Here is the source code for com.liferay.journal.web.internal.upload.ImageJournalUploadHandler.java

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/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library 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 Lesser General Public License for more
 * details.
 */

package com.liferay.journal.web.internal.upload;

import com.liferay.document.library.kernel.util.DLValidator;
import com.liferay.journal.configuration.JournalFileUploadsConfiguration;
import com.liferay.journal.service.permission.JournalPermission;
import com.liferay.portal.kernel.exception.ImageTypeException;
import com.liferay.portal.kernel.exception.PortalException;
import com.liferay.portal.kernel.json.JSONFactoryUtil;
import com.liferay.portal.kernel.json.JSONObject;
import com.liferay.portal.kernel.log.Log;
import com.liferay.portal.kernel.log.LogFactoryUtil;
import com.liferay.portal.kernel.repository.model.FileEntry;
import com.liferay.portal.kernel.security.auth.PrincipalException;
import com.liferay.portal.kernel.security.permission.ActionKeys;
import com.liferay.portal.kernel.security.permission.PermissionChecker;
import com.liferay.portal.kernel.security.permission.ResourcePermissionCheckerUtil;
import com.liferay.portal.kernel.service.ServiceContext;
import com.liferay.portal.kernel.servlet.ServletResponseConstants;
import com.liferay.portal.kernel.upload.BaseUploadHandler;
import com.liferay.portal.kernel.util.FileUtil;
import com.liferay.portal.kernel.util.StringPool;
import com.liferay.portal.kernel.util.TempFileEntryUtil;

import java.io.InputStream;

import javax.portlet.PortletRequest;
import javax.portlet.PortletResponse;

/**
 * @author Eduardo Garcia
 */
public class ImageJournalUploadHandler extends BaseUploadHandler {

    public ImageJournalUploadHandler(DLValidator dlValidator,
            JournalFileUploadsConfiguration journalFileUploadsConfiguration) {

        _dlValidator = dlValidator;
        _journalFileUploadsConfiguration = journalFileUploadsConfiguration;
    }

    @Override
    public void validateFile(String fileName, String contentType, long size) throws PortalException {

        _dlValidator.validateFileSize(fileName, size);

        String extension = FileUtil.getExtension(fileName);

        for (String imageExtension : _journalFileUploadsConfiguration.imageExtensions()) {

            if (StringPool.STAR.equals(imageExtension) || imageExtension.equals(StringPool.PERIOD + extension)) {

                return;
            }
        }

        throw new ImageTypeException("Invalid image type for file name " + fileName);
    }

    @Override
    protected FileEntry addFileEntry(long userId, long groupId, long folderId, String fileName, String contentType,
            InputStream inputStream, long size, ServiceContext serviceContext) throws PortalException {

        return TempFileEntryUtil.addTempFileEntry(groupId, userId, TEMP_FOLDER_NAME, fileName, inputStream,
                contentType);
    }

    @Override
    protected void checkPermission(long groupId, long folderId, PermissionChecker permissionChecker)
            throws PortalException {

        boolean containsResourcePermission = ResourcePermissionCheckerUtil.containsResourcePermission(
                permissionChecker, JournalPermission.RESOURCE_NAME, groupId, ActionKeys.ADD_ARTICLE);

        if (!containsResourcePermission) {
            throw new PrincipalException.MustHavePermission(permissionChecker, JournalPermission.RESOURCE_NAME,
                    groupId, ActionKeys.ADD_ARTICLE);
        }
    }

    @Override
    protected void doHandleUploadException(PortletRequest portletRequest, PortletResponse portletResponse,
            PortalException pe, JSONObject jsonObject) throws PortalException {

        if (pe instanceof ImageTypeException) {
            JSONObject errorJSONObject = JSONFactoryUtil.createJSONObject();

            errorJSONObject.put("errorType", ServletResponseConstants.SC_FILE_EXTENSION_EXCEPTION);
            errorJSONObject.put("message", StringPool.BLANK);

            jsonObject.put("error", errorJSONObject);
        } else {
            throw pe;
        }
    }

    @Override
    protected FileEntry fetchFileEntry(long userId, long groupId, long folderId, String fileName) {

        try {
            return TempFileEntryUtil.getTempFileEntry(groupId, userId, TEMP_FOLDER_NAME, fileName);
        } catch (PortalException pe) {
            if (_log.isDebugEnabled()) {
                _log.debug(pe, pe);
            }

            return null;
        }
    }

    @Override
    protected JSONObject getImageJSONObject(PortletRequest portletRequest) throws PortalException {

        JSONObject imageJSONObject = super.getImageJSONObject(portletRequest);

        imageJSONObject.put("type", "journal");

        return imageJSONObject;
    }

    @Override
    protected String getParameterName() {
        return "imageSelectorFileName";
    }

    private static final Log _log = LogFactoryUtil.getLog(ImageJournalUploadHandler.class);

    private final DLValidator _dlValidator;
    private final JournalFileUploadsConfiguration _journalFileUploadsConfiguration;

}