🐛 修复某些下载地址带密钥的存储策略，m3u8 视频无法正常播放的功能

src/main/java/im/zhaojun/zfile/controller/home/DirectLinkController.java

@@ -1,6 +1,7 @@
 package im.zhaojun.zfile.controller.home;
 
 import cn.hutool.core.io.FileUtil;
+import cn.hutool.core.util.StrUtil;
 import cn.hutool.core.util.URLUtil;
 import im.zhaojun.zfile.context.DriveContext;
 import im.zhaojun.zfile.exception.NotEnabledDriveException;
@@ -10,6 +11,7 @@ import im.zhaojun.zfile.model.entity.DriveConfig;
 import im.zhaojun.zfile.model.enums.FileTypeEnum;
 import im.zhaojun.zfile.service.DriveConfigService;
 import im.zhaojun.zfile.service.base.AbstractBaseFileService;
+import im.zhaojun.zfile.util.HttpUtil;
 import org.springframework.stereotype.Controller;
 import org.springframework.util.AntPathMatcher;
 import org.springframework.web.bind.annotation.GetMapping;
@@ -18,6 +20,9 @@ import org.springframework.web.servlet.HandlerMapping;
 
 import javax.annotation.Resource;
 import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import java.io.PrintWriter;
 import java.util.Objects;
 
 /**
@@ -30,6 +35,9 @@ public class DirectLinkController {
     @Resource
     private DriveContext driveContext;
 
+    @Resource
+    private DriveConfigService driveConfigService;
+
     /**
      * 获取指定驱动器, 某个文件的直链, 然后重定向过去.
      * @param   driveId
@@ -57,15 +65,21 @@ public class DirectLinkController {
             filePath = "/" + filePath;
         }
 
-        if (Objects.equals(FileUtil.getName(filePath), ZFileConstant.PASSWORD_FILE_NAME)) {
-            throw new NotAllowedDownloadException("不允许下载此文件");
-        }
-
         AbstractBaseFileService fileService = driveContext.get(driveId);
         FileItemDTO fileItem = fileService.getFileItem(filePath);
 
         String url = fileItem.getUrl();
 
+        if (StrUtil.equalsIgnoreCase(FileUtil.extName(fileItem.getName()), "m3u8")) {
+            String textContent = HttpUtil.getTextContent(url);
+            response.setContentType("application/json;charset=utf-8");
+            PrintWriter out = response.getWriter();
+            out.write(textContent);
+            out.flush();
+            out.close();
+            return null;
+        }
+
         int queryIndex = url.indexOf('?');
 
         if (queryIndex != -1) {