networkplaceresourcetype.java

这是linux下ssl vpn的实现程序

/*
 *  SSL-Explorer
 *
 *  Copyright (C) 2003-2006 3SP LTD. All Rights Reserved
 *
 *  This program is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU General Public License
 *  as published by the Free Software Foundation; either version 2 of
 *  the License, or (at your option) any later version.
 *  This program 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 General Public
 *  License along with this program; if not, write to the Free Software
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
			
package com.sslexplorer.vfs;

import javax.servlet.http.HttpServletRequest;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import com.sslexplorer.core.CoreAttributeConstants;
import com.sslexplorer.core.CoreEvent;
import com.sslexplorer.core.CoreEventConstants;
import com.sslexplorer.core.CoreServlet;
import com.sslexplorer.navigation.FavoriteResourceType;
import com.sslexplorer.navigation.WrappedFavoriteItem;
import com.sslexplorer.policyframework.DefaultResourceType;
import com.sslexplorer.policyframework.Policy;
import com.sslexplorer.policyframework.PolicyConstants;
import com.sslexplorer.policyframework.Resource;
import com.sslexplorer.policyframework.ResourceChangeEvent;
import com.sslexplorer.policyframework.ResourceDeleteEvent;
import com.sslexplorer.security.SessionInfo;
import com.sslexplorer.vfs.webdav.DAVMount;
import com.sslexplorer.vfs.webdav.DAVRepository;
import com.sslexplorer.vfs.webdav.DAVStore;

/**
 * Implementation of a {@link com.sslexplorer.policyframework.ResourceType} for
 * <i>Network Place</i> resources.
 * 
 * @author Brett Smith <a href="mailto: [e-mail]">&lt;[e-mail]&gt;</a>
 * @version $Revision: 1.11 $
 */
public class NetworkPlaceResourceType extends DefaultResourceType implements FavoriteResourceType {

    final static Log log = LogFactory.getLog(NetworkPlaceResourceType.class);

    /**
     * Constructor
     */
    public NetworkPlaceResourceType() {
        super(PolicyConstants.NETWORK_PLACE_RESOURCE_TYPE_ID, "policyframework", PolicyConstants.DELEGATION_CLASS);
    }

    /*
     * (non-Javadoc)
     * 
     * @see com.sslexplorer.navigation.FavoriteResourceType#createWrappedFavoriteItem(int,
     *      javax.servlet.http.HttpServletRequest, java.lang.String)
     */
    public WrappedFavoriteItem createWrappedFavoriteItem(int resourceId, HttpServletRequest request, String type) throws Exception {
        NetworkPlace np = CoreServlet.getServlet().getSystemDatabase().getNetworkPlace(resourceId);
        NetworkPlaceItem npi;
        if (np != null) {
            DAVStore store = DAVRepository.getInstance().getStore(np.getScheme());
            SessionInfo sessionInfo = CoreServlet.getServlet().getLogonController().getSessionInfo(request);
            DAVMount mount = store.getMountFromString(np.getResourceName(), sessionInfo);
            npi = new NetworkPlaceItem(np, mount.getMountString(), CoreServlet.getServlet().getPolicyDatabase()
                            .getPoliciesAttachedToResource(np), np.sessionPasswordRequired(sessionInfo));
            return new WrappedFavoriteItem(npi, type);
        }
        return null;
    }

    /*
     * (non-Javadoc)
     * 
     * @see com.sslexplorer.navigation.FavoriteResourceType#getResourceById(int)
     */
    public Resource getResourceById(int resourceId) throws Exception {
        return CoreServlet.getServlet().getSystemDatabase().getNetworkPlace(resourceId);
    }

    /*
     * (non-Javadoc)
     * 
     * @see com.sslexplorer.navigation.FavoriteResourceType#getResourceByName(java.lang.String)
     */
    public Resource getResourceByName(String resourceName) throws Exception {
        return CoreServlet.getServlet().getSystemDatabase().getNetworkPlace(resourceName);
    }

    /*
     * (non-Javadoc)
     * 
     * @see com.sslexplorer.boot.policyframework.ResourceType#removeResource(int,
     *      com.sslexplorer.security.SessionInfo)
     */
    public Resource removeResource(int resourceId, SessionInfo session) throws Exception {
        try {
            NetworkPlace np = CoreServlet.getServlet().getSystemDatabase().deleteNetworkPlace(resourceId);
            return np;
        } catch (Exception e) {
            throw e;
        }
    }

    /*
     * (non-Javadoc)
     * 
     * @see com.sslexplorer.boot.policyframework.ResourceType#updateResource(com.sslexplorer.boot.policyframework.Resource,
     *      com.sslexplorer.security.SessionInfo)
     */
    public void updateResource(Resource resource, SessionInfo session) throws Exception {
        try {
            NetworkPlace np = (NetworkPlace) resource;
            CoreServlet.getServlet().getSystemDatabase().updateNetworkPlace(np.getResourceId(), np.getScheme(),
                np.getResourceName(), np.getResourceDescription(), np.getUri(), np.isReadOnly(), np.isAllowResursive(),
                np.isNoDelete(), np.isShowHidden(), np.getParentResourcePermission());
        } catch (Exception e) {
            throw e;
        }
    }

    public static CoreEvent addNetworkPlaceAttributes(CoreEvent evt, NetworkPlace networkPlace) {
        return evt;
    }

    public static CoreEvent getResourceAccessListEvent(Object src, NetworkPlace np, HttpServletRequest request, String path,
                                                       String uri, Throwable exception) {
        if (exception != null) {
            return new VFSAccessEvent(src, CoreEventConstants.VFS_DIRECTORY_LISTED, np, getPolicy(getSessionInfo(request), np),
                            getSessionInfo(request), exception, request, path, uri);
        } else {
            return new VFSAccessEvent(src, CoreEventConstants.VFS_DIRECTORY_LISTED, np, getPolicy(getSessionInfo(request), np),
                            getSessionInfo(request), CoreEvent.STATE_SUCCESSFUL, request, path, uri);
        }
    }

    public static CoreEvent getResourceAccessDeleteEvent(Object src, NetworkPlace np, HttpServletRequest request, String path,
                                                         String uri, String name, Throwable exception) {
        if (exception != null) {
            return new VFSAccessEvent(src, CoreEventConstants.VFS_REMOVE, np, getPolicy(getSessionInfo(request), np),
                            getSessionInfo(request), exception, request, path, uri).addAttribute(
                CoreAttributeConstants.EVENT_ATTR_VFS_FILE_NAME, name);
        } else {
            return new VFSAccessEvent(src, CoreEventConstants.VFS_REMOVE, np, getPolicy(getSessionInfo(request), np),
                            getSessionInfo(request), CoreEvent.STATE_SUCCESSFUL, request, path, uri).addAttribute(
                CoreAttributeConstants.EVENT_ATTR_VFS_FILE_NAME, name);
        }
    }

    public static CoreEvent getResourceAccessUploadEvent(Object src, NetworkPlace np, HttpServletRequest request, String path,
                                                         String uri, String name, Throwable exception) {
        if (exception != null) {
            return new VFSAccessEvent(src, CoreEventConstants.VFS_UPLOAD_FILE, np, getPolicy(getSessionInfo(request), np),
                            getSessionInfo(request), exception, request, null, null).addAttribute(
                CoreAttributeConstants.EVENT_ATTR_VFS_UPLOAD_DESTINATION_URI, uri).addAttribute(
                CoreAttributeConstants.EVENT_ATTR_VFS_UPLOAD_DESTINATION_PATH, path).addAttribute(
                CoreAttributeConstants.EVENT_ATTR_VFS_FILE_NAME, name);

        } else {
            return new VFSAccessEvent(src, CoreEventConstants.VFS_UPLOAD_FILE, np, getPolicy(getSessionInfo(request), np),
                            getSessionInfo(request), CoreEvent.STATE_SUCCESSFUL, request).addAttribute(
                CoreAttributeConstants.EVENT_ATTR_VFS_UPLOAD_DESTINATION_URI, uri).addAttribute(
                CoreAttributeConstants.EVENT_ATTR_VFS_UPLOAD_DESTINATION_PATH, path).addAttribute(
                CoreAttributeConstants.EVENT_ATTR_VFS_FILE_NAME, name);
        }
    }

    public static CoreEvent getResourceAccessMkDirEvent(Object src, NetworkPlace np, HttpServletRequest request, String path,
                                                        String uri, Throwable exception) {
        if (exception != null) {
            return new VFSAccessEvent(src, CoreEventConstants.VFS_DIRECTORY_CREATED, np, getPolicy(getSessionInfo(request), np),
                            getSessionInfo(request), exception, request, path, uri);
        } else {
            return new VFSAccessEvent(src, CoreEventConstants.VFS_DIRECTORY_CREATED, np, getPolicy(getSessionInfo(request), np),
                            getSessionInfo(request), CoreEvent.STATE_SUCCESSFUL, request, path, uri);
        }
    }

    public static CoreEvent getResourceAccessPasteEvent(Object src, NetworkPlace np, HttpServletRequest request, String path,
                                                        String uri, Throwable exception) {
        if (exception != null) {
            return new VFSAccessEvent(src, CoreEventConstants.VFS_PASTE_OPERATION, np, getPolicy(getSessionInfo(request), np),
                            getSessionInfo(request), exception, request, path, uri);
        } else {
            return new VFSAccessEvent(src, CoreEventConstants.VFS_PASTE_OPERATION, np, getPolicy(getSessionInfo(request), np),
                            getSessionInfo(request), CoreEvent.STATE_SUCCESSFUL, request, path, uri);
        }
    }

    public static CoreEvent getResourceAccessZipEvent(Object src, NetworkPlace np, HttpServletRequest request, String path,
                                                      String uri, Throwable exception) {
        return new VFSAccessEvent(src, CoreEventConstants.VFS_ZIP_DOWNLOAD, np, getPolicy(getSessionInfo(request), np),
                        getSessionInfo(request), CoreEvent.STATE_SUCCESSFUL, request, path, uri);
    }

    public static void addDirectoryAttribute(CoreEvent evt, String name, int counter) {
        evt.addAttribute(CoreAttributeConstants.EVENT_ATTR_VFS_DIRECTORY_NAME + counter, name);
    }

    public static void addFileAttribute(CoreEvent evt, String name, int counter) {
        evt.addAttribute(CoreAttributeConstants.EVENT_ATTR_VFS_FILE_NAME + counter, name);
    }

    public static void addOperationType(CoreEvent evt, boolean isCut) {
        evt.addAttribute(CoreAttributeConstants.EVENT_ATTR_VFS_OPERATION, isCut ? "Cut" : "Copy");
    }

    public static CoreEvent getResourceAccessRenameEvent(Object src, NetworkPlace np, HttpServletRequest request, String path,
                                                         String uri, String oldName, String newName, Throwable exception) {
        if (exception != null) {
            return new VFSAccessEvent(src, CoreEventConstants.VFS_RENAME, np, getPolicy(getSessionInfo(request), np),
                            getSessionInfo(request), exception, request, path, uri).addAttribute(
                CoreAttributeConstants.EVENT_ATTR_VFS_OLD_NAME, oldName).addAttribute(
                CoreAttributeConstants.EVENT_ATTR_VFS_NEW_NAME, newName);
        } else {
            return new VFSAccessEvent(src, CoreEventConstants.VFS_RENAME, np, getPolicy(getSessionInfo(request), np),
                            getSessionInfo(request), CoreEvent.STATE_SUCCESSFUL, request, path, uri).addAttribute(
                CoreAttributeConstants.EVENT_ATTR_VFS_OLD_NAME, oldName).addAttribute(
                CoreAttributeConstants.EVENT_ATTR_VFS_NEW_NAME, newName);
        }
    }

    private static Policy getPolicy(SessionInfo sessionInfo, NetworkPlace np) {
        try {
            return np == null ? null : CoreServlet.getServlet().getPolicyDatabase().getGrantingPolicy(sessionInfo.getUser(), np);
        } catch (Exception e) {
            return null;
        }
    }

    private static SessionInfo getSessionInfo(HttpServletRequest request) {
        return CoreServlet.getServlet().getLogonController().getSessionInfo(request);
    }

    public static CoreEvent getResourceAccessDownloadStartedEvent(Object src, NetworkPlace np, HttpServletRequest request,
                                                                  String path, String uri) {
            return new VFSAccessEvent(src, CoreEventConstants.VFS_FILE_DOWNLOAD_STARTED, np,
                            getPolicy(getSessionInfo(request), np), getSessionInfo(request), CoreEvent.STATE_SUCCESSFUL, request,
                            path, uri);
    }

    public static CoreEvent getResourceAccessDownloadCompleteEvent(Object src, NetworkPlace np, HttpServletRequest request,
                                                                   String path, String uri) {
            return new VFSAccessEvent(src, CoreEventConstants.VFS_FILE_DOWNLOAD_COMPLETE, np,
                            getPolicy(getSessionInfo(request), np), getSessionInfo(request), CoreEvent.STATE_SUCCESSFUL, request,
                            path, uri);
    }

    public static CoreEvent getResourceAccessDownloadFailedEvent(Object src, NetworkPlace np, HttpServletRequest request,
                                                                   String path, String uri, Throwable exception) {
            return new VFSAccessEvent(src, CoreEventConstants.VFS_FILE_DOWNLOAD_STARTED, np,
                            getPolicy(getSessionInfo(request), np), getSessionInfo(request), exception, request, path, uri);
    }
}