diff options
Diffstat (limited to 'juick-common/src/main/java/com/juick/server/util/HttpUtils.java')
-rw-r--r-- | juick-common/src/main/java/com/juick/server/util/HttpUtils.java | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/juick-common/src/main/java/com/juick/server/util/HttpUtils.java b/juick-common/src/main/java/com/juick/server/util/HttpUtils.java new file mode 100644 index 00000000..35f594f3 --- /dev/null +++ b/juick-common/src/main/java/com/juick/server/util/HttpUtils.java @@ -0,0 +1,95 @@ +/* + * Copyright (C) 2008-2017, Juick + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as + * published by the Free Software Foundation, either version 3 of the + * License, or (at your option) any later version. + * + * This program 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 Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +package com.juick.server.util; + +import org.apache.commons.codec.digest.DigestUtils; +import org.apache.commons.lang3.StringUtils; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; +import org.springframework.web.multipart.MultipartFile; + +import java.io.IOException; +import java.io.InputStream; +import java.net.URL; +import java.net.URLConnection; +import java.nio.file.Files; +import java.nio.file.Paths; +import java.util.UUID; + +/** + * + * @author Ugnich Anton + */ +public class HttpUtils { + private static final Logger logger = LoggerFactory.getLogger(HttpUtils.class); + + public static String receiveMultiPartFile(MultipartFile attach, String tmpDir) { + if (attach !=null && !attach.isEmpty()) { + String partname = attach.getOriginalFilename(); + if (partname != null && partname.length() > 0) { + String attachmentType = partname.substring(partname.length() - 3).toLowerCase(); + if (attachmentType.equals("jpg") || attachmentType.equals("peg") || attachmentType.equals("png")) { + if (attachmentType.equals("peg")) { + attachmentType = "jpg"; + } + String attachmentFName = DigestUtils.md5Hex(UUID.randomUUID().toString()) + "." + attachmentType; + try { + Files.write(Paths.get(tmpDir, attachmentFName), + attach.getBytes()); + return attachmentFName; + } catch (IOException e) { + logger.warn("file receive error", e); + } + } + } + } + return StringUtils.EMPTY; + } + public static String downloadImage(URL url, String tmpDir) throws Exception { + URLConnection urlConn; + try { + urlConn = url.openConnection(); + } catch (IOException e) { + logger.error(String.format("Failed open url: %s", url.toString())); + throw e; + } + + try (InputStream is = urlConn.getInputStream()) { + String mime = urlConn.getContentType(); + + String attachmentType; + if (mime != null && mime.equals("image/jpeg")) { + attachmentType = "jpg"; + } else if (mime != null && mime.equals("image/png")) { + attachmentType = "png"; + } else if (url.getFile().toLowerCase().endsWith("jpg")) { + attachmentType = "jpg"; + } else if (url.getFile().toLowerCase().endsWith("png")) { + attachmentType = "png"; + } else { + throw new Exception("Wrong file type: " + mime); + } + + String attachmentFName = DigestUtils.md5Hex(UUID.randomUUID().toString()) + "." + attachmentType; + Files.copy(is, Paths.get(tmpDir, attachmentFName)); + return attachmentFName; + } catch (Exception e) { + logger.error(String.format("Failed download image by url: %s", url.toString()), e); + throw e; + } + } +} |