From 31f55ea1de6f788a93c539ee025d324d40a9dc19 Mon Sep 17 00:00:00 2001
From: RuoYi <yzz_ivy@163.com>
Date: 星期二, 04 一月 2022 20:24:49 +0800
Subject: [PATCH] update donate

---
 src/main/java/com/ruoyi/common/utils/file/FileUtils.java |  165 +++++++++++++++++++++++++++++++++++++++++++++++--------
 1 files changed, 141 insertions(+), 24 deletions(-)

diff --git a/src/main/java/com/ruoyi/common/utils/file/FileUtils.java b/src/main/java/com/ruoyi/common/utils/file/FileUtils.java
index 03f5aa2..6aed085 100644
--- a/src/main/java/com/ruoyi/common/utils/file/FileUtils.java
+++ b/src/main/java/com/ruoyi/common/utils/file/FileUtils.java
@@ -3,11 +3,20 @@
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.OutputStream;
 import java.io.UnsupportedEncodingException;
 import java.net.URLEncoder;
+import java.nio.charset.StandardCharsets;
 import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import org.apache.commons.io.IOUtils;
+import org.apache.commons.lang3.ArrayUtils;
+import com.ruoyi.common.utils.DateUtils;
+import com.ruoyi.common.utils.IdUtils;
+import com.ruoyi.common.utils.StringUtils;
+import com.ruoyi.framework.config.RuoYiConfig;
 
 /**
  * 鏂囦欢澶勭悊宸ュ叿绫�
@@ -49,29 +58,48 @@
         }
         finally
         {
-            if (os != null)
-            {
-                try
-                {
-                    os.close();
-                }
-                catch (IOException e1)
-                {
-                    e1.printStackTrace();
-                }
-            }
-            if (fis != null)
-            {
-                try
-                {
-                    fis.close();
-                }
-                catch (IOException e1)
-                {
-                    e1.printStackTrace();
-                }
-            }
+            IOUtils.close(os);
+            IOUtils.close(fis);
         }
+    }
+
+    /**
+     * 鍐欐暟鎹埌鏂囦欢涓�
+     *
+     * @param data 鏁版嵁
+     * @return 鐩爣鏂囦欢
+     * @throws IOException IO寮傚父
+     */
+    public static String writeImportBytes(byte[] data) throws IOException
+    {
+        return writeBytes(data, RuoYiConfig.getImportPath());
+    }
+
+    /**
+     * 鍐欐暟鎹埌鏂囦欢涓�
+     *
+     * @param data 鏁版嵁
+     * @param uploadDir 鐩爣鏂囦欢
+     * @return 鐩爣鏂囦欢
+     * @throws IOException IO寮傚父
+     */
+    public static String writeBytes(byte[] data, String uploadDir) throws IOException
+    {
+        FileOutputStream fos = null;
+        String pathName = "";
+        try
+        {
+            String extension = getFileExtendName(data);
+            pathName = DateUtils.datePath() + "/" + IdUtils.fastUUID() + "." + extension;
+            File file = FileUploadUtils.getAbsoluteFile(uploadDir, pathName);
+            fos = new FileOutputStream(file);
+            fos.write(data);
+        }
+        finally
+        {
+            IOUtils.close(fos);
+        }
+        return FileUploadUtils.getPathFileName(uploadDir, pathName);
     }
 
     /**
@@ -105,14 +133,37 @@
     }
 
     /**
+     * 妫�鏌ユ枃浠舵槸鍚﹀彲涓嬭浇
+     * 
+     * @param resource 闇�瑕佷笅杞界殑鏂囦欢
+     * @return true 姝e父 false 闈炴硶
+     */
+    public static boolean checkAllowDownload(String resource)
+    {
+        // 绂佹鐩綍涓婅烦绾у埆
+        if (StringUtils.contains(resource, ".."))
+        {
+            return false;
+        }
+
+        // 妫�鏌ュ厑璁镐笅杞界殑鏂囦欢瑙勫垯
+        if (ArrayUtils.contains(MimeTypeUtils.DEFAULT_ALLOWED_EXTENSION, FileTypeUtils.getFileType(resource)))
+        {
+            return true;
+        }
+
+        // 涓嶅湪鍏佽涓嬭浇鐨勬枃浠惰鍒�
+        return false;
+    }
+
+    /**
      * 涓嬭浇鏂囦欢鍚嶉噸鏂扮紪鐮�
      * 
      * @param request 璇锋眰瀵硅薄
      * @param fileName 鏂囦欢鍚�
      * @return 缂栫爜鍚庣殑鏂囦欢鍚�
      */
-    public static String setFileDownloadHeader(HttpServletRequest request, String fileName)
-            throws UnsupportedEncodingException
+    public static String setFileDownloadHeader(HttpServletRequest request, String fileName) throws UnsupportedEncodingException
     {
         final String agent = request.getHeader("USER-AGENT");
         String filename = fileName;
@@ -139,4 +190,70 @@
         }
         return filename;
     }
+
+    /**
+     * 涓嬭浇鏂囦欢鍚嶉噸鏂扮紪鐮�
+     *
+     * @param response 鍝嶅簲瀵硅薄
+     * @param realFileName 鐪熷疄鏂囦欢鍚�
+     * @return
+     */
+    public static void setAttachmentResponseHeader(HttpServletResponse response, String realFileName) throws UnsupportedEncodingException
+    {
+        String percentEncodedFileName = percentEncode(realFileName);
+
+        StringBuilder contentDispositionValue = new StringBuilder();
+        contentDispositionValue.append("attachment; filename=")
+                .append(percentEncodedFileName)
+                .append(";")
+                .append("filename*=")
+                .append("utf-8''")
+                .append(percentEncodedFileName);
+
+        response.addHeader("Access-Control-Allow-Origin", "*");
+        response.addHeader("Access-Control-Expose-Headers", "Content-Disposition,download-filename");
+        response.setHeader("Content-disposition", contentDispositionValue.toString());
+        response.setHeader("download-filename", percentEncodedFileName);
+    }
+
+    /**
+     * 鐧惧垎鍙风紪鐮佸伐鍏锋柟娉�
+     *
+     * @param s 闇�瑕佺櫨鍒嗗彿缂栫爜鐨勫瓧绗︿覆
+     * @return 鐧惧垎鍙风紪鐮佸悗鐨勫瓧绗︿覆
+     */
+    public static String percentEncode(String s) throws UnsupportedEncodingException
+    {
+        String encode = URLEncoder.encode(s, StandardCharsets.UTF_8.toString());
+        return encode.replaceAll("\\+", "%20");
+    }
+
+    /**
+     * 鑾峰彇鍥惧儚鍚庣紑
+     * 
+     * @param photoByte 鍥惧儚鏁版嵁
+     * @return 鍚庣紑鍚�
+     */
+    public static String getFileExtendName(byte[] photoByte)
+    {
+        String strFileExtendName = "jpg";
+        if ((photoByte[0] == 71) && (photoByte[1] == 73) && (photoByte[2] == 70) && (photoByte[3] == 56)
+                && ((photoByte[4] == 55) || (photoByte[4] == 57)) && (photoByte[5] == 97))
+        {
+            strFileExtendName = "gif";
+        }
+        else if ((photoByte[6] == 74) && (photoByte[7] == 70) && (photoByte[8] == 73) && (photoByte[9] == 70))
+        {
+            strFileExtendName = "jpg";
+        }
+        else if ((photoByte[0] == 66) && (photoByte[1] == 77))
+        {
+            strFileExtendName = "bmp";
+        }
+        else if ((photoByte[1] == 80) && (photoByte[2] == 78) && (photoByte[3] == 71))
+        {
+            strFileExtendName = "png";
+        }
+        return strFileExtendName;
+    }
 }

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