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/*
* 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.io.IOUtils;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.multipart.MultipartFile;
import java.io.FileOutputStream;
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 {
String attachmentFName = null;
Exception ex = null;
InputStream is = null;
FileOutputStream fos = null;
try {
URLConnection urlConn = url.openConnection();
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);
}
attachmentFName = DigestUtils.md5Hex(UUID.randomUUID().toString()) + "." + attachmentType;
fos = new FileOutputStream(Paths.get(tmpDir, attachmentFName).toString());
IOUtils.copy(is, fos);
} catch (Exception e) {
ex = e;
attachmentFName = null;
} finally {
try {
if (is != null) {
is.close();
}
} finally {
if (fos != null) {
fos.close();
}
}
}
if (ex != null) {
throw ex;
} else {
return attachmentFName;
}
}
}
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