From 02723131139806c761539a42a5fa80b68ecadee8 Mon Sep 17 00:00:00 2001
From: Vitaly Takmazov
Date: Thu, 29 Jun 2017 14:03:04 +0300
Subject: project structure: split server into jdbc + web

---
 .../main/java/com/juick/server/util/HttpUtils.java | 112 +++++++++++++++++++++
 1 file changed, 112 insertions(+)
 create mode 100644 juick-server-web/src/main/java/com/juick/server/util/HttpUtils.java

(limited to 'juick-server-web/src/main/java/com/juick/server/util/HttpUtils.java')

diff --git a/juick-server-web/src/main/java/com/juick/server/util/HttpUtils.java b/juick-server-web/src/main/java/com/juick/server/util/HttpUtils.java
new file mode 100644
index 00000000..31a68962
--- /dev/null
+++ b/juick-server-web/src/main/java/com/juick/server/util/HttpUtils.java
@@ -0,0 +1,112 @@
+/*
+ * Juick
+ * Copyright (C) 2008-2011, Ugnich Anton
+ *
+ * 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.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 {
+                throw new Exception("Wrong file type");
+            }
+
+            attachmentFName = DigestUtils.md5Hex(UUID.randomUUID().toString()) + "." + attachmentType;
+            fos = new FileOutputStream(Paths.get(tmpDir, attachmentFName).toString());
+            byte[] buffer = new byte[10240];
+            int len;
+            while ((len = is.read(buffer)) > 0) {
+                fos.write(buffer, 0, len);
+            }
+        } 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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