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.controller;
  
  import org.airsonic.player.domain.Avatar;
  import org.airsonic.player.domain.AvatarScheme;
  import org.airsonic.player.domain.UserSettings;
  import org.airsonic.player.service.SettingsService;
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.stereotype.Controller;
  import org.springframework.web.bind.ServletRequestUtils;
  import org.springframework.web.bind.annotation.GetMapping;
  import org.springframework.web.bind.annotation.RequestMapping;
  import org.springframework.web.servlet.mvc.LastModified;
  
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  
  /**
   * Controller which produces avatar images.
   *
   * @author Sindre Mehus
   */
  @Controller
  @RequestMapping("/avatar")
  public class AvatarController implements LastModified {
  
      @Autowired
      private SettingsService settingsService;
  
      public long getLastModified(HttpServletRequest request) {
          Avatar avatar = getAvatar(request);
          long result = avatar == null ? -1L : avatar.getCreatedDate().getTime();
  
          String username = request.getParameter("username");
          if (username != null) {
              UserSettings userSettings = settingsService.getUserSettings(username);
              result = Math.max(result, userSettings.getChanged().getTime());
          }
  
          return result;
      }
  
      @GetMapping
      public void handleRequest(HttpServletRequest request, HttpServletResponse response) throws Exception {
          Avatar avatar = getAvatar(request);
  
          if (avatar == null) {
              response.sendError(HttpServletResponse.SC_NOT_FOUND);
              return;
          }
  
          response.setContentType(avatar.getMimeType());
          response.getOutputStream().write(avatar.getData());
      }
  
      private Avatar getAvatar(HttpServletRequest request) {
          String id = request.getParameter("id");
          boolean forceCustom = ServletRequestUtils.getBooleanParameter(request, "forceCustom", false);
  
          if (id != null) {
              return settingsService.getSystemAvatar(Integer.parseInt(id));
          }
  
          String username = request.getParameter("username");
          if (username == null) {
              return null;
          }
  
          UserSettings userSettings = settingsService.getUserSettings(username);
          if (userSettings.getAvatarScheme() == AvatarScheme.CUSTOM || forceCustom) {
              return settingsService.getCustomAvatar(username);
          }
          if (userSettings.getAvatarScheme() == AvatarScheme.NONE) {
              return null;
          }
          return settingsService.getSystemAvatar(userSettings.getSystemAvatarId());
      }
  
  }
  