org.apache.openmeetings.web.room.RoomResourceReference.java Source code

Introduction

Here is the source code for org.apache.openmeetings.web.room.RoomResourceReference.java

Source

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License") +  you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.openmeetings.web.room;

import static org.apache.openmeetings.db.dto.room.Whiteboard.ATTR_FILE_ID;
import static org.apache.openmeetings.db.dto.room.Whiteboard.ATTR_SLIDE;
import static org.apache.openmeetings.util.OmFileHelper.EXTENSION_PNG;
import static org.apache.openmeetings.util.OmFileHelper.MP4_MIME_TYPE;
import static org.apache.openmeetings.util.OmFileHelper.PNG_MIME_TYPE;
import static org.apache.openmeetings.util.OmFileHelper.getImagesDir;
import static org.apache.openmeetings.web.app.WebSession.getUserId;

import java.io.File;
import java.util.Map.Entry;

import org.apache.openmeetings.db.dao.file.FileItemDao;
import org.apache.openmeetings.db.dao.user.GroupUserDao;
import org.apache.openmeetings.db.dto.room.Whiteboard;
import org.apache.openmeetings.db.dto.room.Whiteboards;
import org.apache.openmeetings.db.entity.basic.Client;
import org.apache.openmeetings.db.entity.file.FileItem;
import org.apache.openmeetings.web.app.ClientManager;
import org.apache.openmeetings.web.app.WebSession;
import org.apache.openmeetings.web.app.WhiteboardManager;
import org.apache.openmeetings.web.util.FileItemResourceReference;
import org.apache.wicket.injection.Injector;
import org.apache.wicket.request.mapper.parameter.PageParameters;
import org.apache.wicket.request.resource.IResource.Attributes;
import org.apache.wicket.spring.injection.annot.SpringBean;
import org.apache.wicket.util.string.StringValue;
import org.apache.wicket.util.string.Strings;

import com.github.openjson.JSONObject;

public class RoomResourceReference extends FileItemResourceReference<FileItem> {
    private static final long serialVersionUID = 1L;
    private static final String DEFAULT_NAME = "wb-room-file";
    @SpringBean
    private ClientManager cm;
    @SpringBean
    private FileItemDao fileDao;
    @SpringBean
    private WhiteboardManager wbManager;
    @SpringBean
    private GroupUserDao groupUserDao;

    public RoomResourceReference() {
        this(DEFAULT_NAME);
    }

    public RoomResourceReference(String name) {
        super(name);
        Injector.get().inject(this);
    }

    @Override
    protected String getMimeType(FileItem r) {
        String mime;
        switch (r.getType()) {
        case WmlFile:
            mime = "application/xml";
            break;
        case Image:
            mime = PNG_MIME_TYPE;
            break;
        case Presentation:
            mime = PNG_MIME_TYPE;
            break;
        case Video:
            mime = MP4_MIME_TYPE;
            break;
        default:
            throw new RuntimeException("Not supported");
        }
        return r.isDeleted() ? PNG_MIME_TYPE : mime;
    }

    @Override
    protected FileItem getFileItem(Attributes attr) {
        PageParameters params = attr.getParameters();
        StringValue _id = params.get("id");
        String uid = params.get("uid").toString();
        Long id = null;
        try {
            id = _id.toOptionalLong();
        } catch (NumberFormatException e) {
            //no-op expected
        }
        WebSession ws = WebSession.get();
        Client c = cm.get(uid);
        if (id == null || !ws.isSignedIn() || c == null) {
            return null;
        }
        FileItem f = (FileItem) fileDao.getAny(id);
        if (f == null) {
            return null;
        }
        String ruid = params.get("ruid").toString();
        String wuid = params.get("wuid").toString();
        if (c.getRoom() != null) {
            Whiteboards wbs = wbManager.get(c.getRoom().getId());
            if (!Strings.isEmpty(wuid) && !Strings.isEmpty(ruid) && ruid.equals(wbs.getUid())) {
                for (Entry<Long, Whiteboard> e : wbs.getWhiteboards().entrySet()) {
                    JSONObject file = e.getValue().get(wuid);
                    if (file != null && f.getId().equals(file.optLong(ATTR_FILE_ID))) {
                        return f; // item IS on WB
                    }
                }
            }
        }
        if (f.getGroupId() != null && groupUserDao.isUserInGroup(f.getGroupId(), getUserId())) {
            return f;
        }
        return null;
    }

    protected File getFile(FileItem f, String ext) {
        File file = f.getFile(ext);
        if (file == null || !file.exists()) {
            file = new File(getImagesDir(), String.format("deleted.%s", EXTENSION_PNG));
        }
        return file;
    }

    @Override
    protected File getFile(FileItem f, Attributes attr) {
        String ext = f.getType() == FileItem.Type.Presentation ? attr.getParameters().get(ATTR_SLIDE).toString()
                : null;
        return getFile(f, ext);
    }

    @Override
    protected String getFileName(FileItem f) {
        return f.getFileName(null);
    }
}