com.liferay.blogs.web.internal.upload.ImageBlogsUploadFileEntryHandler.java Source code

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Here is the source code for com.liferay.blogs.web.internal.upload.ImageBlogsUploadFileEntryHandler.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.blogs.web.internal.upload;

import com.liferay.blogs.constants.BlogsConstants;
import com.liferay.blogs.exception.EntryImageNameException;
import com.liferay.blogs.exception.EntryImageSizeException;
import com.liferay.blogs.model.BlogsEntry;
import com.liferay.blogs.service.BlogsEntryLocalService;
import com.liferay.petra.string.StringPool;
import com.liferay.portal.kernel.exception.PortalException;
import com.liferay.portal.kernel.portletfilerepository.PortletFileRepositoryUtil;
import com.liferay.portal.kernel.repository.model.FileEntry;
import com.liferay.portal.kernel.repository.model.Folder;
import com.liferay.portal.kernel.security.permission.ActionKeys;
import com.liferay.portal.kernel.security.permission.resource.PortletResourcePermission;
import com.liferay.portal.kernel.theme.ThemeDisplay;
import com.liferay.portal.kernel.upload.UploadPortletRequest;
import com.liferay.portal.kernel.util.FileUtil;
import com.liferay.portal.kernel.util.PropsKeys;
import com.liferay.portal.kernel.util.WebKeys;
import com.liferay.portal.util.PrefsPropsUtil;
import com.liferay.portal.util.PropsValues;
import com.liferay.upload.UploadFileEntryHandler;

import java.io.IOException;
import java.io.InputStream;

import org.osgi.service.component.annotations.Component;
import org.osgi.service.component.annotations.Reference;

/**
 * @author Alejandro Tardn
 */
@Component(service = ImageBlogsUploadFileEntryHandler.class)
public class ImageBlogsUploadFileEntryHandler implements UploadFileEntryHandler {

    @Override
    public FileEntry upload(UploadPortletRequest uploadPortletRequest) throws IOException, PortalException {

        ThemeDisplay themeDisplay = (ThemeDisplay) uploadPortletRequest.getAttribute(WebKeys.THEME_DISPLAY);

        portletResourcePermission.check(themeDisplay.getPermissionChecker(), themeDisplay.getScopeGroup(),
                ActionKeys.ADD_ENTRY);

        String fileName = uploadPortletRequest.getFileName(_PARAMETER_NAME);
        long size = uploadPortletRequest.getSize(_PARAMETER_NAME);

        _validateFile(fileName, size);

        String contentType = uploadPortletRequest.getContentType(_PARAMETER_NAME);

        try (InputStream inputStream = uploadPortletRequest.getFileAsStream(_PARAMETER_NAME)) {

            return addFileEntry(fileName, contentType, inputStream, themeDisplay);
        }
    }

    protected FileEntry addFileEntry(String fileName, String contentType, InputStream inputStream,
            ThemeDisplay themeDisplay) throws PortalException {

        Folder folder = blogsLocalService.addAttachmentsFolder(themeDisplay.getUserId(),
                themeDisplay.getScopeGroupId());

        String uniqueFileName = PortletFileRepositoryUtil.getUniqueFileName(themeDisplay.getScopeGroupId(),
                folder.getFolderId(), fileName);

        return PortletFileRepositoryUtil.addPortletFileEntry(themeDisplay.getScopeGroupId(),
                themeDisplay.getUserId(), BlogsEntry.class.getName(), 0, BlogsConstants.SERVICE_NAME,
                folder.getFolderId(), inputStream, uniqueFileName, contentType, true);
    }

    @Reference
    protected BlogsEntryLocalService blogsLocalService;

    @Reference(target = "(resource.name=" + BlogsConstants.RESOURCE_NAME + ")")
    protected PortletResourcePermission portletResourcePermission;

    private void _validateFile(String fileName, long size) throws PortalException {

        if ((PropsValues.BLOGS_IMAGE_MAX_SIZE > 0) && (size > PropsValues.BLOGS_IMAGE_MAX_SIZE)) {

            throw new EntryImageSizeException();
        }

        String extension = FileUtil.getExtension(fileName);

        String[] imageExtensions = PrefsPropsUtil.getStringArray(PropsKeys.BLOGS_IMAGE_EXTENSIONS,
                StringPool.COMMA);

        for (String imageExtension : imageExtensions) {
            if (StringPool.STAR.equals(imageExtension) || imageExtension.equals(StringPool.PERIOD + extension)) {

                return;
            }
        }

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

    private static final String _PARAMETER_NAME = "imageSelectorFileName";

}