001    /**
002     * Copyright (c) 2000-present 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    import com.liferay.portal.kernel.webdav.methods.Method;
025    
026    import java.io.InputStream;
027    
028    import javax.servlet.http.HttpServletRequest;
029    import javax.servlet.http.HttpServletResponse;
030    
031    /**
032     * @author Brian Wing Shun Chan
033     * @author Alexander Chow
034     */
035    public class GetMethodImpl implements Method {
036    
037            @Override
038            public int process(WebDAVRequest webDAVRequest) throws WebDAVException {
039                    InputStream is = null;
040    
041                    try {
042                            WebDAVStorage storage = webDAVRequest.getWebDAVStorage();
043                            HttpServletRequest request = webDAVRequest.getHttpServletRequest();
044                            HttpServletResponse response =
045                                    webDAVRequest.getHttpServletResponse();
046    
047                            Resource resource = storage.getResource(webDAVRequest);
048    
049                            if (resource == null) {
050                                    return HttpServletResponse.SC_NOT_FOUND;
051                            }
052    
053                            try {
054                                    is = resource.getContentAsStream();
055                            }
056                            catch (Exception e) {
057                                    if (_log.isErrorEnabled()) {
058                                            _log.error(e.getMessage());
059                                    }
060                            }
061    
062                            if (is != null) {
063                                    try {
064                                            ServletResponseUtil.sendFile(
065                                                    request, response, resource.getDisplayName(), is,
066                                                    resource.getSize(), resource.getContentType());
067                                    }
068                                    catch (Exception e) {
069                                            if (_log.isWarnEnabled()) {
070                                                    _log.warn(e);
071                                            }
072                                    }
073    
074                                    return HttpServletResponse.SC_OK;
075                            }
076    
077                            return HttpServletResponse.SC_NOT_FOUND;
078                    }
079                    catch (Exception e) {
080                            throw new WebDAVException(e);
081                    }
082            }
083    
084            private static final Log _log = LogFactoryUtil.getLog(GetMethodImpl.class);
085    
086    }