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/*
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This file is part of Airsonic.
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Airsonic is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Airsonic is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Airsonic. If not, see <http://www.gnu.org/licenses/>.
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Copyright 2016 (C) Airsonic Authors
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Based upon Subsonic, Copyright 2009 (C) Sindre Mehus
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*/
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package org.airsonic.player.controller;
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import org.airsonic.player.domain.Avatar;
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import org.airsonic.player.service.SecurityService;
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import org.airsonic.player.service.SettingsService;
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import org.airsonic.player.util.StringUtil;
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import org.apache.commons.fileupload.FileItem;
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import org.apache.commons.fileupload.FileItemFactory;
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import org.apache.commons.fileupload.disk.DiskFileItemFactory;
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import org.apache.commons.fileupload.servlet.ServletFileUpload;
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import org.apache.commons.io.FilenameUtils;
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import org.apache.commons.lang3.StringUtils;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Controller;
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import org.springframework.web.bind.annotation.PostMapping;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.servlet.ModelAndView;
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import javax.imageio.ImageIO;
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import javax.servlet.http.HttpServletRequest;
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import java.awt.image.BufferedImage;
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.util.Date;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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/**
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* Controller which receives uploaded avatar images.
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*
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* @author Sindre Mehus
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*/
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@Controller
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@RequestMapping("/avatarUpload")
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public class AvatarUploadController {
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private static final Logger LOG = LoggerFactory.getLogger(AvatarUploadController.class);
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private static final int MAX_AVATAR_SIZE = 64;
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@Autowired
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private SettingsService settingsService;
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@Autowired
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private SecurityService securityService;
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@PostMapping
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protected ModelAndView handleRequestInternal(HttpServletRequest request) throws Exception {
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String username = securityService.getCurrentUsername(request);
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// Check that we have a file upload request.
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if (!ServletFileUpload.isMultipartContent(request)) {
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throw new Exception("Illegal request.");
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}
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Map<String, Object> map = new HashMap<String, Object>();
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FileItemFactory factory = new DiskFileItemFactory();
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ServletFileUpload upload = new ServletFileUpload(factory);
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List<?> items = upload.parseRequest(request);
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// Look for file items.
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for (Object o : items) {
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FileItem item = (FileItem) o;
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if (!item.isFormField()) {
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String fileName = item.getName();
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byte[] data = item.get();
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if (StringUtils.isNotBlank(fileName) && data.length > 0) {
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createAvatar(fileName, data, username, map);
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} else {
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map.put("error", new Exception("Missing file."));
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LOG.warn("Failed to upload personal image. No file specified.");
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}
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break;
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}
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}
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map.put("username", username);
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map.put("avatar", settingsService.getCustomAvatar(username));
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return new ModelAndView("avatarUploadResult","model",map);
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}
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private void createAvatar(String fileName, byte[] data, String username, Map<String, Object> map) throws IOException {
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BufferedImage image;
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try {
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image = ImageIO.read(new ByteArrayInputStream(data));
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if (image == null) {
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throw new Exception("Failed to decode incoming image: " + fileName + " (" + data.length + " bytes).");
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}
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int width = image.getWidth();
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int height = image.getHeight();
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String mimeType = StringUtil.getMimeType(FilenameUtils.getExtension(fileName));
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// Scale down image if necessary.
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if (width > MAX_AVATAR_SIZE || height > MAX_AVATAR_SIZE) {
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double scaleFactor = (double) MAX_AVATAR_SIZE / (double) Math.max(width, height);
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height = (int) (height * scaleFactor);
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width = (int) (width * scaleFactor);
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image = CoverArtController.scale(image, width, height);
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ByteArrayOutputStream out = new ByteArrayOutputStream();
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ImageIO.write(image, "jpeg", out);
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data = out.toByteArray();
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mimeType = StringUtil.getMimeType("jpeg");
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map.put("resized", true);
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}
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Avatar avatar = new Avatar(0, fileName, new Date(), mimeType, width, height, data);
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settingsService.setCustomAvatar(avatar, username);
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LOG.info("Created avatar '" + fileName + "' (" + data.length + " bytes) for user " + username);
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} catch (Exception x) {
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LOG.warn("Failed to upload personal image: " + x, x);
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map.put("error", x);
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}
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}
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}
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