fix(lz): use Android mobile UA for all Lanzou HTTP requests

Desktop Chrome triggers Lanzou off0 offline stubs (~665B, empty title,
no filemoreajax). Share HTML, iframe, ajax/filemore, and download-domain
requests now share applyMobileIdentity instead of Windows PAGE_HEADERS.

Co-authored-by: qaiu <[email protected]>

parser/src/main/java/cn/qaiu/parser/impl/LzTool.java

@@ -82,24 +82,31 @@ public class LzTool extends PanBase {
             Pattern.compile("(?s)文件描述：</span><br>(.*?)</td>|class=\"n_box_des\">(.*?)</div>");
     private static final Pattern P_FI_ID = Pattern.compile("\\?f=(.*?)&|fid = (.*?);");
     private static final Pattern P_FI_TIME = Pattern.compile(">上传时间：</span>(.*?)<");
-    /** 分享页导航头，只读共享；需要改写时先 addAll 到新 MultiMap。 */
+    /**
-    private static final MultiMap PAGE_HEADERS = HeaderUtils.parseHeaders("""
+     * 蓝奏全部对外 HTTP 共用的移动端身份。
+     * 桌面 Chrome UA 拉分享页常返回 off0 下线空壳（~665B，空 title，无 filemoreajax）。
+     */
+    private static final String MOBILE_UA = "Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 "
+            + "(KHTML, like Gecko) Chrome/111.0.0.0 Mobile Safari/537.36";
+
+    /** 分享页 / iframe / 下载域导航头，只读共享；需要改写时先 addAll 到新 MultiMap。 */
+    private static final MultiMap PAGE_HEADERS = applyMobileIdentity(HeaderUtils.parseHeaders("""
         Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7
         Accept-Encoding: identity
         Accept-Language: zh-CN,zh;q=0.9,en;q=0.8,en-GB;q=0.7,en-US;q=0.6
         Cache-Control: max-age=0
         DNT: 1
         Priority: u=0, i
-        Sec-CH-UA: "Chromium";v="134", "Not:A-Brand";v="24", "Google Chrome";v="134"
+        Sec-CH-UA: "Chromium";v="111", "Not:A-Brand";v="24", "Google Chrome";v="111"
-        Sec-CH-UA-Mobile: ?0
+        Sec-CH-UA-Mobile: ?1
-        Sec-CH-UA-Platform: "Windows"
+        Sec-CH-UA-Platform: "Android"
         Sec-Fetch-Dest: document
         Sec-Fetch-Mode: navigate
         Sec-Fetch-Site: cross-site
         Sec-Fetch-User: ?1
         Upgrade-Insecure-Requests: 1
-        User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36
+        User-Agent: Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.0.0 Mobile Safari/537.36
-        """);
+        """));
 
     private static final String DOWN_AJAX_HEADERS = """
             Accept: application/json, text/javascript, */*; q=0.01
@@ -111,11 +118,7 @@ public class LzTool extends PanBase {
             Sec-Fetch-Dest: empty
             Sec-Fetch-Mode: cors
             Sec-Fetch-Site: same-origin
-            User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36
             X-Requested-With: XMLHttpRequest
-            sec-ch-ua: "Chromium";v="134", "Not:A-Brand";v="24", "Google Chrome";v="134"
-            sec-ch-ua-mobile: ?0
-            sec-ch-ua-platform: "Windows"
             """;
 
     private static final String VERIFY_AJAX_HEADERS = """
@@ -412,7 +415,7 @@ public class LzTool extends PanBase {
     }
 
     /** 页面里提取出的 ajax 调用：相对路径 + 表单参数。 */
-    private record AjaxCall(String path, Map<String, String> form) {
+    record AjaxCall(String path, Map<String, String> form) {
         MultiMap toForm() {
             MultiMap m = MultiMap.caseInsensitiveMultiMap();
             form.forEach(m::set);
@@ -485,7 +488,7 @@ public class LzTool extends PanBase {
         return new AjaxCall("/" + ajaxPath, data);
     }
 
-    private static AjaxCall extractFolderAjax(String html, String pwd) {
+    static AjaxCall extractFolderAjax(String html, String pwd) {
         if (html == null || html.isEmpty()) {
             return null;
         }
@@ -575,7 +578,7 @@ public class LzTool extends PanBase {
     }
 
     private void getDownURL(String referer, AjaxCall call) {
-        MultiMap headers = HeaderUtils.parseHeaders(DOWN_AJAX_HEADERS);
+        MultiMap headers = applyMobileIdentity(HeaderUtils.parseHeaders(DOWN_AJAX_HEADERS));
         // 个性域名 ajaxfile.php 会立刻 inf=已超时；POST 必须打 wwww。iframe 请求 Referer 用 iframe 地址。
         headers.set("referer", referer != null && !referer.isBlank() ? referer : resolveShareUrl());
         String url = joinUrl(SHARE_ORIGIN + "/", call.path());
@@ -616,7 +619,7 @@ public class LzTool extends PanBase {
 
     /**
      * 中间链：部分出口仍 302；多数（含机房 IP）固定出「验证并下载」页。
-     * dmpdmp 等下载域仍会出 arg1 挑战（Windows UA 更常见），必须算 acw_sc__v2 再请求。
+     * dmpdmp 等下载域仍会出 arg1 挑战，必须算 acw_sc__v2 再请求。
      * 必须等约 2s 后 POST /file/ajax.php el=2 拿 CDN 直链；立刻 POST 会 ?SignError。
      * 中间页不能当成功结果返回——用户侧裸打开永远是验证 HTML。
      */
@@ -748,20 +751,17 @@ public class LzTool extends PanBase {
     }
 
     /** 最后一步 GET 用完整浏览器导航头，裸 curl / 无 UA 会固定落到验证页。 */
-    private static MultiMap lanrarPageHeaders(String referer) {
+    static MultiMap lanrarPageHeaders(String referer) {
         MultiMap h = MultiMap.caseInsensitiveMultiMap();
         h.addAll(PAGE_HEADERS);
         h.set("referer", referer);
         return h;
     }
 
-    private static MultiMap lanrarAjaxHeaders(String referer) {
+    static MultiMap lanrarAjaxHeaders(String referer) {
-        MultiMap h = HeaderUtils.parseHeaders(VERIFY_AJAX_HEADERS);
+        MultiMap h = applyMobileIdentity(HeaderUtils.parseHeaders(VERIFY_AJAX_HEADERS));
         h.set("referer", referer);
-        copyHeader(h, "User-Agent", "User-Agent");
         copyHeader(h, "Sec-CH-UA", "sec-ch-ua");
-        copyHeader(h, "Sec-CH-UA-Mobile", "sec-ch-ua-mobile");
-        copyHeader(h, "Sec-CH-UA-Platform", "sec-ch-ua-platform");
         return h;
     }
 
@@ -871,18 +871,45 @@ public class LzTool extends PanBase {
         complete(downloadUrl);
     }
 
-    /** 目录列表 filemoreajax.php 用移动端 UA。 */
+    /** 蓝奏对外请求统一写成 Android Mobile，避免桌面 UA 落到 off0 空壳。 */
-    private static MultiMap folderListHeaders(String referer) {
+    static MultiMap applyMobileIdentity(MultiMap headers) {
-        MultiMap headers = MultiMap.caseInsensitiveMultiMap();
+        headers.set("User-Agent", MOBILE_UA);
-        headers.set("User-Agent", "Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 "
+        headers.set("Sec-CH-UA-Mobile", "?1");
-                + "(KHTML, like Gecko) Chrome/111.0.0.0 Mobile Safari/537.36");
+        headers.set("Sec-CH-UA-Platform", "\"Android\"");
-        headers.set("referer", referer);
-        headers.set("sec-ch-ua-platform", "Android");
-        headers.set("Accept-Language", "zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2");
-        headers.set("sec-ch-ua-mobile", "?1");
         return headers;
     }
 
+    static MultiMap folderListHeaders(String referer) {
+        MultiMap headers = applyMobileIdentity(MultiMap.caseInsensitiveMultiMap());
+        headers.set("Accept-Language", "zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2");
+        headers.set("referer", referer);
+        return headers;
+    }
+
+    static String mobileUserAgent() {
+        return MOBILE_UA;
+    }
+
+    static MultiMap sharePageHeaders() {
+        return PAGE_HEADERS;
+    }
+
+    static MultiMap downAjaxHeaders() {
+        return applyMobileIdentity(HeaderUtils.parseHeaders(DOWN_AJAX_HEADERS));
+    }
+
+    /** 蓝奏 off0 / off1 下线空壳：桌面 UA 拉分享页时常只有这个，没有 filemoreajax。 */
+    static boolean isLzOfflineStub(String html) {
+        if (html == null || html.isBlank()) {
+            return true;
+        }
+        if (html.contains("class=\"off0\"") || html.contains("class='off0'")
+                || html.contains("id=\"off0\"") || html.contains("id='off0'")
+                || html.contains("class=\"off1\"") || html.contains("class='off1'")) {
+            return true;
+        }
+        return P_OFF_MSG.matcher(html).find();
+    }
 
     @Override
     public Future<List<FileInfo>> parseFileList() {
@@ -958,7 +985,7 @@ public class LzTool extends PanBase {
         return path.charAt(0) == 'b' || path.charAt(0) == 'B';
     }
 
-    private static boolean isLzFolderHtml(String html) {
+    static boolean isLzFolderHtml(String html) {
         if (html == null || html.isBlank()) {
             return false;
         }

parser/src/test/java/cn/qaiu/parser/impl/LzToolFolderPageTest.java

@@ -0,0 +1,110 @@
+package cn.qaiu.parser.impl;
+
+import io.vertx.core.MultiMap;
+import org.junit.Test;
+
+import java.util.List;
+
+import static org.junit.Assert.*;
+
+/**
+ * 蓝奏 LzTool 对外请求一律移动 UA：桌面 Chrome 会触发 off0 下线空壳。
+ * 不访问真实蓝奏，只回归请求头与空壳/目录页识别。
+ */
+public class LzToolFolderPageTest {
+
+    private static final String FOLDER_URL = "https://pan.lanzoux.com/b66477";
+    private static final String FILE_URL = "https://wwww.lanzoux.com/iULV2n4361c";
+
+    /** 桌面 UA 实测会落到的 off0 空壳（空 title，无 filemoreajax）。 */
+    private static final String OFF0_STUB = """
+            <!DOCTYPE html>
+            <html>
+            <head><meta charset="utf-8"><title></title></head>
+            <body>
+            <div class="off">
+            <div class="off0"></div>
+            <div class="off1"></div>
+            </div>
+            </body>
+            </html>
+            """;
+
+    /** 移动 UA 才能拿到的目录页片段。 */
+    private static final String FOLDER_HTML = """
+            <!DOCTYPE html>
+            <html>
+            <head><title>全网最全软件合集</title></head>
+            <body>
+            <div id="infos"></div>
+            <script type="text/javascript">
+            $.ajax({
+                url : '/filemoreajax.php?file=66477',
+                data : {
+                    'lx':2,
+                    'fid':66477,
+                    'uid':'u1',
+                    'pg':1,
+                    'rep':'0',
+                    't':t,
+                    'k':k,
+                    'up':1,
+                    'pwd':pwd
+                }
+            });
+            var t = 'TIME_TOKEN';
+            var k = 'KEY_TOKEN';
+            </script>
+            </body>
+            </html>
+            """;
+
+    @Test
+    public void testAllOutboundHeadersUseAndroidMobileUa() {
+        String mobileUa = LzTool.mobileUserAgent();
+        assertTrue(mobileUa.contains("Android"));
+        assertTrue(mobileUa.contains("Mobile Safari"));
+        assertFalse("蓝奏路径不应再带桌面 Chrome UA", mobileUa.contains("Windows NT"));
+
+        List<MultiMap> outbound = List.of(
+                LzTool.sharePageHeaders(),
+                LzTool.folderListHeaders(FOLDER_URL),
+                LzTool.downAjaxHeaders(),
+                LzTool.lanrarPageHeaders("https://developer2.lanrar.com"),
+                LzTool.lanrarAjaxHeaders(FILE_URL)
+        );
+        for (MultiMap headers : outbound) {
+            assertEquals(mobileUa, headers.get("User-Agent"));
+            assertEquals("?1", headers.get("Sec-CH-UA-Mobile"));
+            assertFalse(String.valueOf(headers.get("User-Agent")).contains("Windows NT"));
+            assertFalse("?0".equals(headers.get("Sec-CH-UA-Mobile")));
+        }
+        assertEquals("\"Android\"", LzTool.sharePageHeaders().get("Sec-CH-UA-Platform"));
+    }
+
+    @Test
+    public void testOff0StubDetectedWithoutFilemoreajax() {
+        assertTrue(LzTool.isLzOfflineStub(OFF0_STUB));
+        assertTrue(LzTool.isLzOfflineStub(""));
+        assertTrue(LzTool.isLzOfflineStub(null));
+        assertFalse(LzTool.isLzOfflineStub(FOLDER_HTML));
+        assertFalse(LzTool.isLzFolderHtml(OFF0_STUB));
+        assertNull(LzTool.extractFolderAjax(OFF0_STUB, null));
+    }
+
+    @Test
+    public void testRealFolderHtmlExtractsFilemoreajax() {
+        assertTrue(LzTool.isLzFolderHtml(FOLDER_HTML));
+        assertFalse(LzTool.isLzOfflineStub(FOLDER_HTML));
+        assertTrue(LzTool.isLzFolderUrl(FOLDER_URL));
+        assertFalse(LzTool.isLzFolderUrl(FILE_URL));
+
+        LzTool.AjaxCall call = LzTool.extractFolderAjax(FOLDER_HTML, "pwd1");
+        assertNotNull(call);
+        assertEquals("/filemoreajax.php?file=66477", call.path());
+        assertEquals("66477", call.form().get("fid"));
+        assertEquals("TIME_TOKEN", call.form().get("t"));
+        assertEquals("KEY_TOKEN", call.form().get("k"));
+        assertEquals("pwd1", call.form().get("pwd"));
+    }
+}

web-front/src/components/DirectoryTree.vue

@@ -139,114 +139,113 @@
                     style="background:transparent;"
                   />
                 </div>
-                <TreeBatchActionBar
+                <div v-if="batchMode" class="tree-sidebar-footer">
-                  v-if="batchMode"
+                  <span class="tree-sidebar-count">已勾选 {{ selectedFiles.length }} 个文件</span>
-                  class="tree-sidebar-footer"
+                  <div class="tree-sidebar-actions">
-                  v-bind="treeBatchBarBind"
+                    <el-button
-                  @browser-download="batchBrowserDownload"
+                      type="primary"
-                  @send-downloader="batchSendToDownloader"
+                      size="small"
-                  @cancel="toggleBatchMode"
+                      :disabled="selectedFiles.length === 0 || batchDownloading || treeExpanding || batchBrowserDownloadDisabled"
-                />
+                      :loading="batchDownloading"
+                      @click="batchBrowserDownload"
+                      :title="batchBrowserDownloadDisabled ? '所选文件需使用下载器下载' : ''"
+                    >
+                      浏览器下载
+                    </el-button>
+                    <el-button
+                      type="success"
+                      size="small"
+                      :disabled="selectedFiles.length === 0 || batchDownloading || treeExpanding"
+                      :loading="batchDownloading"
+                      @click="batchSendToDownloader"
+                    >
+                      发送到下载器
+                    </el-button>
+                    <el-button
+                      size="small"
+                      @click="toggleBatchMode"
+                    >
+                      取消
+                    </el-button>
+                  </div>
+                  <div v-if="batchDownloading" class="batch-progress-info">
+                    <el-progress :percentage="batchProgressPercent" :status="batchProgressStatus" />
+                    <p>{{ batchProgress.current }} / {{ batchProgress.total }}
+                      <span v-if="batchProgress.failed > 0" style="color:#f56c6c;"> ({{ batchProgress.failed }} 失败)</span>
+                    </p>
+                  </div>
+                </div>
               </div>
             </pane>
             <pane>
               <div class="tree-content">
-                <div class="tree-toolbar tree-content-toolbar">
+                <div v-if="selectedNode" class="file-detail-panel">
-                  <span class="tree-toolbar-title">
+                  <div class="file-detail-icon-wrap">
-                    <i class="fas fa-file-alt" aria-hidden="true"></i> 详情
+                    <i :class="getFileIcon(selectedNode)" class="file-detail-icon"></i>
-                  </span>
+                  </div>
-                  <el-button
+                  <h4 class="file-detail-name">{{ selectedNode.fileName }}</h4>
-                    v-if="!batchMode"
+                  <div v-if="selectedNode.fileType !== 'folder'" class="file-detail-meta">
-                    type="warning"
+                    <p>类型: {{ selectedNode.fileType === 'url' ? '超链接' : getFileTypeClass(selectedNode) }}</p>
-                    size="small"
+                    <p v-if="selectedNode.fileType !== 'url'">大小: {{ selectedNode.sizeStr || '0B' }}</p>
-                    @click="toggleBatchMode"
+                    <p v-if="selectedNode.fileType === 'url' && selectedNode.previewUrl" class="file-detail-link">
-                  >
+                      链接: {{ selectedNode.previewUrl }}
+                    </p>
+                    <p v-if="formatDate(selectedNode.createTime)">创建时间: {{ formatDate(selectedNode.createTime) }}</p>
+                    <p v-if="formatDate(selectedNode.updateTime)">更新时间: {{ formatDate(selectedNode.updateTime) }}</p>
+                  </div>
+                  <div class="file-detail-actions">
+                    <el-button
+                      v-if="selectedNode.fileType === 'url' && selectedNode.previewUrl"
+                      type="primary" size="small"
+                      @click="openExternalLink(selectedNode)"
+                    >
+                      <i class="fas fa-external-link-alt"></i> 打开链接
+                    </el-button>
+                    <el-button
+                      v-else-if="selectedNode.parserUrl || selectedNode.previewUrl"
+                      size="small"
+                      @click="previewFile(selectedNode)"
+                    >
+                      <i class="fas fa-external-link-alt"></i> 打开
+                    </el-button>
+                    <el-button
+                      v-if="isDownloadableFile(selectedNode)"
+                      type="success" size="small"
+                      @click="handleDownload(selectedNode)"
+                      :loading="downloadLoading"
+                      :disabled="needsDownloader(selectedNode)"
+                      :title="needsDownloader(selectedNode) ? '该网盘需使用下载器下载' : ''"
+                    >
+                      <i class="fas fa-download"></i> 下载
+                    </el-button>
+                    <el-button
+                      v-if="isDownloadableFile(selectedNode)"
+                      type="primary" size="small"
+                      @click="sendSingleToDownloader(selectedNode)"
+                      :loading="singleSendLoading"
+                    >
+                      <i class="fas fa-paper-plane"></i> 发送到下载器
+                    </el-button>
+                    <el-button
+                      v-if="isDownloadableFile(selectedNode)"
+                      size="small"
+                      @click="copyDirectLink(selectedNode)"
+                      :loading="copyLinkLoading"
+                      :disabled="needsDownloader(selectedNode)"
+                      :title="needsDownloader(selectedNode) ? '该网盘需使用下载器，无法直接复制直链' : ''"
+                    >
+                      <i class="fas fa-link"></i> 复制直链
+                    </el-button>
+                  </div>
+                </div>
+                <div v-else class="file-detail-empty">
+                  <i class="fas fa-hand-pointer" style="font-size:32px;color:#bbb;margin-bottom:12px;"></i>
+                  <p>请在左侧选择文件查看详情</p>
+                </div>
+                <div v-if="!batchMode" class="tree-batch-trigger">
+                  <el-button type="warning" size="small" @click="toggleBatchMode">
                     <i class="fas fa-check-double"></i> 批量下载
                   </el-button>
-                  <span v-else class="tree-toolbar-hint">
-                    {{ treeExpanding ? '正在展开并收集文件…' : `勾选左侧文件夹将自动展开（最多 ${effectiveBatchMaxDepth} 层）` }}
-                  </span>
-                </div>
-                <div class="tree-content-body">
-                  <div v-if="selectedNode" class="file-detail-panel">
-                    <div class="file-detail-icon-wrap">
-                      <i :class="getFileIcon(selectedNode)" class="file-detail-icon"></i>
-                    </div>
-                    <h4 class="file-detail-name">{{ selectedNode.fileName }}</h4>
-                    <div v-if="selectedNode.fileType !== 'folder'" class="file-detail-meta">
-                      <p>类型: {{ selectedNode.fileType === 'url' ? '超链接' : getFileTypeClass(selectedNode) }}</p>
-                      <p v-if="selectedNode.fileType !== 'url'">大小: {{ selectedNode.sizeStr || '0B' }}</p>
-                      <p v-if="selectedNode.fileType === 'url' && selectedNode.previewUrl" class="file-detail-link">
-                        链接: {{ selectedNode.previewUrl }}
-                      </p>
-                      <p v-if="formatDate(selectedNode.createTime)">创建时间: {{ formatDate(selectedNode.createTime) }}</p>
-                      <p v-if="formatDate(selectedNode.updateTime)">更新时间: {{ formatDate(selectedNode.updateTime) }}</p>
-                    </div>
-                    <div class="file-detail-actions">
-                      <el-button
-                        v-if="selectedNode.fileType === 'url' && selectedNode.previewUrl"
-                        type="primary" size="small"
-                        @click="openExternalLink(selectedNode)"
-                      >
-                        <i class="fas fa-external-link-alt"></i> 打开链接
-                      </el-button>
-                      <el-button
-                        v-else-if="selectedNode.parserUrl || selectedNode.previewUrl"
-                        size="small"
-                        @click="previewFile(selectedNode)"
-                      >
-                        <i class="fas fa-external-link-alt"></i> 打开
-                      </el-button>
-                      <el-button
-                        v-if="isDownloadableFile(selectedNode)"
-                        type="success" size="small"
-                        @click="handleDownload(selectedNode)"
-                        :loading="downloadLoading"
-                        :disabled="needsDownloader(selectedNode)"
-                        :title="needsDownloader(selectedNode) ? '该网盘需使用下载器下载' : ''"
-                      >
-                        <i class="fas fa-download"></i> 下载
-                      </el-button>
-                      <el-button
-                        v-if="isDownloadableFile(selectedNode)"
-                        type="primary" size="small"
-                        @click="sendSingleToDownloader(selectedNode)"
-                        :loading="singleSendLoading"
-                      >
-                        <i class="fas fa-paper-plane"></i> 发送到下载器
-                      </el-button>
-                      <el-button
-                        v-if="isDownloadableFile(selectedNode)"
-                        size="small"
-                        @click="copyDirectLink(selectedNode)"
-                        :loading="copyLinkLoading"
-                        :disabled="needsDownloader(selectedNode)"
-                        :title="needsDownloader(selectedNode) ? '该网盘需使用下载器，无法直接复制直链' : ''"
-                      >
-                        <i class="fas fa-link"></i> 复制直链
-                      </el-button>
-                    </div>
-                  </div>
-                  <div v-else class="file-detail-empty">
-                    <i class="fas fa-hand-pointer" style="font-size:32px;color:#bbb;margin-bottom:12px;"></i>
-                    <p>请在左侧选择文件查看详情</p>
-                    <p v-if="!batchMode" class="file-detail-empty-hint">或直接点击「批量下载」勾选多个文件</p>
-                  </div>
-                </div>
-                <div class="tree-content-footer" :class="{ 'is-batch': batchMode }">
-                  <template v-if="!batchMode">
-                    <span class="tree-content-footer-hint">可直接勾选多个文件下载</span>
-                    <el-button type="warning" size="small" @click="toggleBatchMode">
-                      <i class="fas fa-check-double"></i> 批量下载
-                    </el-button>
-                  </template>
-                  <TreeBatchActionBar
-                    v-else
-                    v-bind="treeBatchBarBind"
-                    @browser-download="batchBrowserDownload"
-                    @send-downloader="batchSendToDownloader"
-                    @cancel="toggleBatchMode"
-                  />
                 </div>
               </div>
             </pane>
@@ -354,21 +353,26 @@
               <div v-else class="file-detail-empty">
                 <i class="fas fa-hand-pointer" style="font-size:24px;color:#bbb;margin-bottom:8px;"></i>
                 <p>请在上方选择文件查看详情</p>
-                <p v-if="!batchMode" class="file-detail-empty-hint">或直接点击「批量下载」勾选多个文件</p>
               </div>
               <div v-if="!batchMode" class="mobile-batch-trigger">
                 <el-button type="warning" size="small" @click="toggleBatchMode">
                   <i class="fas fa-check-double"></i> 批量下载
                 </el-button>
               </div>
-              <TreeBatchActionBar
+              <div v-if="batchMode" class="mobile-batch-footer">
-                v-if="batchMode"
+                <span class="tree-sidebar-count">已勾选 {{ selectedFiles.length }} 个文件</span>
-                class="mobile-batch-footer"
+                <div class="tree-sidebar-actions">
-                v-bind="treeBatchBarBind"
+                  <el-button type="primary" size="small" :disabled="selectedFiles.length === 0 || batchDownloading || treeExpanding || batchBrowserDownloadDisabled" :loading="batchDownloading" @click="batchBrowserDownload" :title="batchBrowserDownloadDisabled ? '所选文件需使用下载器下载' : ''">浏览器下载</el-button>
-                @browser-download="batchBrowserDownload"
+                  <el-button type="success" size="small" :disabled="selectedFiles.length === 0 || batchDownloading || treeExpanding" :loading="batchDownloading" @click="batchSendToDownloader">发送到下载器</el-button>
-                @send-downloader="batchSendToDownloader"
+                  <el-button size="small" @click="toggleBatchMode">取消</el-button>
-                @cancel="toggleBatchMode"
+                </div>
-              />
+                <div v-if="batchDownloading" class="batch-progress-info">
+                  <el-progress :percentage="batchProgressPercent" :status="batchProgressStatus" />
+                  <p>{{ batchProgress.current }} / {{ batchProgress.total }}
+                    <span v-if="batchProgress.failed > 0" style="color:#f56c6c;"> ({{ batchProgress.failed }} 失败)</span>
+                  </p>
+                </div>
+              </div>
             </div>
           </template>
         </div>
@@ -449,7 +453,6 @@ import { Splitpanes, Pane } from 'splitpanes'
 import 'splitpanes/dist/splitpanes.css'
 import fileTypeUtils from '@/utils/fileTypeUtils'
 import DownloadDialog from '@/components/DownloadDialog.vue'
-import TreeBatchActionBar from '@/components/TreeBatchActionBar.vue'
 import { testConnection, autoDetect, addDownload, batchAddDownload, getConfig, saveConfig } from '@/utils/downloaderService'
 import batchTreeCollect from '@/utils/batchTreeCollect'
 
@@ -463,7 +466,7 @@ const {
 
 export default {
   name: 'DirectoryTree',
-  components: { ElTree, Splitpanes, Pane, DownloadDialog, TreeBatchActionBar },
+  components: { ElTree, Splitpanes, Pane, DownloadDialog },
   props: {
     fileList: {
       type: Array,
@@ -563,19 +566,6 @@ export default {
     effectiveBatchMaxDepth() {
       const depth = Number(this.batchMaxDepth)
       return Number.isFinite(depth) && depth >= 0 ? depth : DEFAULT_BATCH_MAX_DEPTH
-    },
-    treeBatchBarBind() {
-      return {
-        selectedCount: this.selectedFiles.length,
-        batchDownloading: this.batchDownloading,
-        treeExpanding: this.treeExpanding,
-        browserDisabled: this.batchBrowserDownloadDisabled,
-        progressPercent: this.batchProgressPercent,
-        progressStatus: this.batchProgressStatus,
-        progressCurrent: this.batchProgress.current,
-        progressTotal: this.batchProgress.total,
-        progressFailed: this.batchProgress.failed
-      }
     }
   },
   watch: {
@@ -1650,21 +1640,10 @@ html, body, #app, .main-container, .directory-tree, .content-card {
 .batch-progress-info {
   margin-top: 12px;
 }
-.tree-content-footer-hint {
+.tree-batch-trigger {
-  font-size: 12px;
+  position: absolute;
-  color: #909399;
+  bottom: 12px;
-  line-height: 1.4;
+  right: 12px;
-}
-.dark-theme .tree-content-footer-hint {
-  color: #bdc3c7;
-}
-.file-detail-empty-hint {
-  margin-top: 8px;
-  font-size: 13px;
-  color: #909399;
-}
-.dark-theme .file-detail-empty-hint {
-  color: #bdc3c7;
 }
 
 .stats {
@@ -1735,7 +1714,8 @@ html, body, #app, .main-container, .directory-tree, .content-card {
 }
 .tree-content {
   flex: 1;
-  min-height: 0;
+  padding: 16px;
+  overflow-y: auto;
   position: relative;
 }
 
@@ -2028,46 +2008,10 @@ html, body, #app, .main-container, .directory-tree, .content-card {
   min-height: 0;
   display: flex;
   flex-direction: column;
-  overflow: hidden;
-  padding: 0;
-  align-items: stretch;
-  position: relative;
-}
-
-.tree-content-toolbar {
-  width: 100%;
-}
-
-.tree-content-body {
-  flex: 1;
-  min-height: 0;
   overflow: auto;
-  display: flex;
+  padding: 24px 16px 16px 16px;
-  flex-direction: column;
   align-items: center;
-  padding: 24px 16px 16px;
+  position: relative;
-}
-
-.tree-content-footer {
-  flex-shrink: 0;
-  width: 100%;
-  display: flex;
-  align-items: center;
-  justify-content: space-between;
-  gap: 8px;
-  flex-wrap: wrap;
-  padding: 10px 12px;
-  border-top: 1px solid #eaeaea;
-  background: #f8f9fa;
-}
-
-.tree-content-footer.is-batch {
-  display: block;
-}
-
-.dark-theme .tree-content-footer {
-  border-top-color: #404040;
-  background: #232323;
 }
 
 .file-detail-panel {

web-front/src/components/TreeBatchActionBar.vue

@@ -1,51 +0,0 @@
-<template>
-  <div>
-    <span class="tree-sidebar-count">已勾选 {{ selectedCount }} 个文件</span>
-    <div class="tree-sidebar-actions">
-      <el-button
-        type="primary"
-        size="small"
-        :disabled="selectedCount === 0 || batchDownloading || treeExpanding || browserDisabled"
-        :loading="batchDownloading"
-        :title="browserDisabled ? '所选文件需使用下载器下载' : ''"
-        @click="$emit('browser-download')"
-      >
-        浏览器下载
-      </el-button>
-      <el-button
-        type="success"
-        size="small"
-        :disabled="selectedCount === 0 || batchDownloading || treeExpanding"
-        :loading="batchDownloading"
-        @click="$emit('send-downloader')"
-      >
-        发送到下载器
-      </el-button>
-      <el-button size="small" @click="$emit('cancel')">取消</el-button>
-    </div>
-    <div v-if="batchDownloading" class="batch-progress-info">
-      <el-progress :percentage="progressPercent" :status="progressStatus" />
-      <p>{{ progressCurrent }} / {{ progressTotal }}
-        <span v-if="progressFailed > 0" style="color:#f56c6c;"> ({{ progressFailed }} 失败)</span>
-      </p>
-    </div>
-  </div>
-</template>
-
-<script>
-export default {
-  name: 'TreeBatchActionBar',
-  props: {
-    selectedCount: { type: Number, default: 0 },
-    batchDownloading: { type: Boolean, default: false },
-    treeExpanding: { type: Boolean, default: false },
-    browserDisabled: { type: Boolean, default: false },
-    progressPercent: { type: Number, default: 0 },
-    progressStatus: { type: String, default: '' },
-    progressCurrent: { type: Number, default: 0 },
-    progressTotal: { type: Number, default: 0 },
-    progressFailed: { type: Number, default: 0 }
-  },
-  emits: ['browser-download', 'send-downloader', 'cancel']
-}
-</script>