content: /*
   This file is part of Airsonic.
  
   Airsonic 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 3 of the License, or
   (at your option) any later version.
  
   Airsonic 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 Airsonic.  If not, see <http://www.gnu.org/licenses/>.
  
   Copyright 2016 (C) Airsonic Authors
   Based upon Subsonic, Copyright 2009 (C) Sindre Mehus
   */
  package org.airsonic.player.service;
  
  import org.airsonic.player.dao.ShareDao;
  import org.airsonic.player.domain.MediaFile;
  import org.airsonic.player.domain.MusicFolder;
  import org.airsonic.player.domain.Share;
  import org.airsonic.player.domain.User;
  import org.apache.commons.lang.ObjectUtils;
  import org.apache.commons.lang.RandomStringUtils;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.stereotype.Service;
  import org.springframework.web.util.UriComponentsBuilder;
  
  import javax.servlet.http.HttpServletRequest;
  
  import java.util.ArrayList;
  import java.util.Calendar;
  import java.util.Date;
  import java.util.List;
  
  /**
   * Provides services for sharing media.
   *
   * @author Sindre Mehus
   * @see Share
   */
  @Service
  public class ShareService {
  
      private static final Logger LOG = LoggerFactory.getLogger(ShareService.class);
  
      @Autowired
      private ShareDao shareDao;
      @Autowired
      private SecurityService securityService;
      @Autowired
      private MediaFileService mediaFileService;
      @Autowired
      private JWTSecurityService jwtSecurityService;
  
      public List<Share> getAllShares() {
          return shareDao.getAllShares();
      }
  
      public List<Share> getSharesForUser(User user) {
          List<Share> result = new ArrayList<Share>();
          for (Share share : getAllShares()) {
              if (user.isAdminRole() || ObjectUtils.equals(user.getUsername(), share.getUsername())) {
                  result.add(share);
              }
          }
          return result;
      }
  
      public Share getShareById(int id) {
          return shareDao.getShareById(id);
      }
  
      public Share getShareByName(String name) {
          return shareDao.getShareByName(name);
      }
  
      public List<MediaFile> getSharedFiles(int id, List<MusicFolder> musicFolders) {
          List<MediaFile> result = new ArrayList<MediaFile>();
          for (String path : shareDao.getSharedFiles(id, musicFolders)) {
              try {
                  MediaFile mediaFile = mediaFileService.getMediaFile(path);
                  if (mediaFile != null) {
                      result.add(mediaFile);
                  }
              } catch (Exception x) {
                  // Ignored
              }
          }
          return result;
      }
  
      public Share createShare(HttpServletRequest request, List<MediaFile> files) {
  
          Share share = new Share();
          share.setName(RandomStringUtils.random(5, "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"));
          share.setCreated(new Date());
          share.setUsername(securityService.getCurrentUsername(request));
  
          Calendar expires = Calendar.getInstance();
          expires.add(Calendar.YEAR, 1);
          share.setExpires(expires.getTime());
  
          shareDao.createShare(share);
          for (MediaFile file : files) {
              shareDao.createSharedFiles(share.getId(), file.getPath());
          }
          LOG.info("Created share '" + share.getName() + "' with " + files.size() + " file(s).");
  
          return share;
      }
  
      public void updateShare(Share share) {
          shareDao.updateShare(share);
      }
  
      public void deleteShare(int id) {
          shareDao.deleteShare(id);
      }
  
      public String getShareUrl(HttpServletRequest request, Share share) {
          String shareUrl = NetworkService.getBaseUrl(request) + "ext/share/" + share.getName();
          return jwtSecurityService.addJWTToken(UriComponentsBuilder.fromUriString(shareUrl), share.getExpires()).build().toUriString();
      }
  
      public void setSecurityService(SecurityService securityService) {
          this.securityService = securityService;
      }
  
      public void setShareDao(ShareDao shareDao) {
          this.shareDao = shareDao;
      }
  
      public void setMediaFileService(MediaFileService mediaFileService) {
          this.mediaFileService = mediaFileService;
      }
  
      public void setJwtSecurityService(JWTSecurityService jwtSecurityService) {
          this.jwtSecurityService = jwtSecurityService;
      }
  }
  