001    /**
002     * Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.webdav.methods;
016    
017    import com.liferay.portal.kernel.log.Log;
018    import com.liferay.portal.kernel.log.LogFactoryUtil;
019    import com.liferay.portal.kernel.servlet.ServletResponseUtil;
020    import com.liferay.portal.kernel.webdav.Resource;
021    import com.liferay.portal.kernel.webdav.WebDAVException;
022    import com.liferay.portal.kernel.webdav.WebDAVRequest;
023    import com.liferay.portal.kernel.webdav.WebDAVStorage;
024    
025    import java.io.InputStream;
026    
027    import javax.servlet.http.HttpServletRequest;
028    import javax.servlet.http.HttpServletResponse;
029    
030    /**
031     * @author Brian Wing Shun Chan
032     * @author Alexander Chow
033     */
034    public class GetMethodImpl implements Method {
035    
036            @Override
037            public int process(WebDAVRequest webDavRequest) throws WebDAVException {
038                    InputStream is = null;
039    
040                    try {
041                            WebDAVStorage storage = webDavRequest.getWebDAVStorage();
042                            HttpServletRequest request = webDavRequest.getHttpServletRequest();
043                            HttpServletResponse response =
044                                    webDavRequest.getHttpServletResponse();
045    
046                            Resource resource = storage.getResource(webDavRequest);
047    
048                            if (resource == null) {
049                                    return HttpServletResponse.SC_NOT_FOUND;
050                            }
051    
052                            try {
053                                    is = resource.getContentAsStream();
054                            }
055                            catch (Exception e) {
056                                    if (_log.isErrorEnabled()) {
057                                            _log.error(e.getMessage());
058                                    }
059                            }
060    
061                            if (is != null) {
062                                    try {
063                                            ServletResponseUtil.sendFile(
064                                                    request, response, resource.getDisplayName(), is,
065                                                    resource.getSize(), resource.getContentType());
066                                    }
067                                    catch (Exception e) {
068                                            if (_log.isWarnEnabled()) {
069                                                    _log.warn(e);
070                                            }
071                                    }
072    
073                                    return HttpServletResponse.SC_OK;
074                            }
075    
076                            return HttpServletResponse.SC_NOT_FOUND;
077                    }
078                    catch (Exception e) {
079                            throw new WebDAVException(e);
080                    }
081            }
082    
083            private static Log _log = LogFactoryUtil.getLog(GetMethodImpl.class);
084    
085    }