// GoTunnel File Manager Plugin v2.0.0
// 提供完整的 Web 文件管理界面

function metadata() {
  return {
    name: "file-manager",
    version: "2.0.0",
    description: "Web 文件管理器，提供远程文件浏览、上传、下载和管理功能",
    author: "GoTunnel Official",
    type: "app",
    run_at: "client"
  };
}

var rootPath = ".";

function start() {
  rootPath = config("root_path") || ".";
  log("File Manager started, root: " + rootPath);
}

function stop() {
  log("File Manager stopped");
}

function handleConn(conn) {
  http.serve(conn, handleRequest);
}

// ============================================================================
// 请求路由
// ============================================================================

function handleRequest(req) {
  var path = req.path;
  var method = req.method;

  // 静态页面
  if (path === "/" || path === "/index.html") {
    return { status: 200, contentType: "text/html", body: getIndexHTML() };
  }

  // API 路由
  if (path === "/api/list" && method === "GET") {
    return apiList(req);
  }
  if (path === "/api/stat" && method === "GET") {
    return apiStat(req);
  }
  if (path === "/api/read" && method === "POST") {
    return apiRead(req);
  }
  if (path === "/api/write" && method === "POST") {
    return apiWrite(req);
  }
  if (path === "/api/mkdir" && method === "POST") {
    return apiMkdir(req);
  }
  if (path === "/api/delete" && method === "POST") {
    return apiDelete(req);
  }
  if (path === "/api/rename" && method === "POST") {
    return apiRename(req);
  }
  if (path === "/api/download" && method === "GET") {
    return apiDownload(req);
  }

  return jsonError(404, "Not Found");
}

// ============================================================================
// API 处理函数
// ============================================================================

function apiList(req) {
  var dir = getQueryParam(req.path, "path") || "/";
  var fullPath = resolvePath(dir);

  if (!fullPath) {
    return jsonError(403, "Access denied");
  }

  var result = fs.readDir(fullPath);
  if (result.error) {
    return jsonError(500, result.error);
  }

  var entries = [];
  for (var i = 0; i < result.entries.length; i++) {
    var e = result.entries[i];
    entries.push({
      name: e.name,
      isDir: e.isDir,
      size: e.size || 0
    });
  }

  // 排序：文件夹在前，然后按名称
  entries.sort(function (a, b) {
    if (a.isDir !== b.isDir) return a.isDir ? -1 : 1;
    return a.name.localeCompare(b.name);
  });

  return jsonSuccess({ path: dir, entries: entries });
}

function apiStat(req) {
  var path = getQueryParam(req.path, "path") || "/";
  var fullPath = resolvePath(path);

  if (!fullPath) {
    return jsonError(403, "Access denied");
  }

  var result = fs.stat(fullPath);
  if (result.error) {
    return jsonError(404, result.error);
  }

  return jsonSuccess({
    name: result.name,
    size: result.size,
    isDir: result.isDir,
    modTime: result.modTime
  });
}

function apiRead(req) {
  var body = parseBody(req.body);
  var path = body.path;

  if (!path) {
    return jsonError(400, "path required");
  }

  var fullPath = resolvePath(path);
  if (!fullPath) {
    return jsonError(403, "Access denied");
  }

  var result = fs.readFile(fullPath);
  if (result.error) {
    return jsonError(500, result.error);
  }

  return jsonSuccess({ content: result.data });
}

function apiWrite(req) {
  var body = parseBody(req.body);
  var path = body.path;
  var content = body.content;

  if (!path) {
    return jsonError(400, "path required");
  }

  var fullPath = resolvePath(path);
  if (!fullPath) {
    return jsonError(403, "Access denied");
  }

  var result = fs.writeFile(fullPath, content || "");
  if (!result.ok) {
    return jsonError(500, result.error);
  }

  return jsonSuccess({ message: "File saved" });
}

function apiMkdir(req) {
  var body = parseBody(req.body);
  var path = body.path;

  if (!path) {
    return jsonError(400, "path required");
  }

  var fullPath = resolvePath(path);
  if (!fullPath) {
    return jsonError(403, "Access denied");
  }

  var result = fs.mkdir(fullPath);
  if (!result.ok) {
    return jsonError(500, result.error);
  }

  return jsonSuccess({ message: "Directory created" });
}

function apiDelete(req) {
  var body = parseBody(req.body);
  var path = body.path;

  if (!path) {
    return jsonError(400, "path required");
  }

  var fullPath = resolvePath(path);
  if (!fullPath) {
    return jsonError(403, "Access denied");
  }

  var result = fs.remove(fullPath);
  if (!result.ok) {
    return jsonError(500, result.error);
  }

  return jsonSuccess({ message: "Deleted" });
}

function apiRename(req) {
  var body = parseBody(req.body);
  var oldPath = body.path;
  var newPath = body.newPath;

  if (!oldPath || !newPath) {
    return jsonError(400, "path and newPath required");
  }

  var fullOldPath = resolvePath(oldPath);
  var fullNewPath = resolvePath(newPath);

  if (!fullOldPath || !fullNewPath) {
    return jsonError(403, "Access denied");
  }

  // 读取旧文件
  var stat = fs.stat(fullOldPath);
  if (stat.error) {
    return jsonError(404, stat.error);
  }

  if (stat.isDir) {
    return jsonError(400, "Cannot rename directories");
  }

  var content = fs.readFile(fullOldPath);
  if (content.error) {
    return jsonError(500, content.error);
  }

  // 写入新位置
  var writeResult = fs.writeFile(fullNewPath, content.data);
  if (!writeResult.ok) {
    return jsonError(500, writeResult.error);
  }

  // 删除旧文件
  fs.remove(fullOldPath);

  return jsonSuccess({ message: "Renamed" });
}

function apiDownload(req) {
  var path = getQueryParam(req.path, "path");

  if (!path) {
    return jsonError(400, "path required");
  }

  var fullPath = resolvePath(path);
  if (!fullPath) {
    return jsonError(403, "Access denied");
  }

  var result = fs.readFile(fullPath);
  if (result.error) {
    return jsonError(404, result.error);
  }

  var filename = path.split("/").pop() || "download";

  return {
    status: 200,
    contentType: "application/octet-stream",
    body: result.data
  };
}

// ============================================================================
// 工具函数
// ============================================================================

function resolvePath(path) {
  // 规范化路径
  path = path || "/";

  // 移除开头的斜杠
  while (path.charAt(0) === "/") {
    path = path.substring(1);
  }

  // 检查路径穿越攻击
  if (path.indexOf("..") !== -1) {
    return null;
  }

  // 拼接根路径
  if (path === "") {
    return rootPath;
  }

  return rootPath + "/" + path;
}

function getQueryParam(path, key) {
  var idx = path.indexOf("?");
  if (idx === -1) return "";

  var query = path.substring(idx + 1);
  var pairs = query.split("&");

  for (var i = 0; i < pairs.length; i++) {
    var pair = pairs[i].split("=");
    if (pair[0] === key) {
      return decodeURIComponent(pair[1] || "");
    }
  }
  return "";
}

function parseBody(body) {
  try {
    return JSON.parse(body || "{}");
  } catch (e) {
    return {};
  }
}

function jsonSuccess(data) {
  return {
    status: 200,
    contentType: "application/json",
    body: http.json({ success: true, data: data })
  };
}

function jsonError(status, message) {
  return {
    status: status,
    contentType: "application/json",
    body: http.json({ success: false, error: message })
  };
}

// ============================================================================
// Web UI - HTML/CSS/JavaScript
// ============================================================================

function getIndexHTML() {
  return '<!DOCTYPE html>\n\
<html lang="zh-CN">\n\
<head>\n\
  <meta charset="UTF-8">\n\
  <meta name="viewport" content="width=device-width, initial-scale=1.0">\n\
  <title>File Manager</title>\n\
  <style>\n\
    * { margin: 0; padding: 0; box-sizing: border-box; }\n\
    :root {\n\
      --bg-primary: #0f0f23;\n\
      --bg-secondary: #1a1a2e;\n\
      --bg-tertiary: #252542;\n\
      --text-primary: #e4e4e7;\n\
      --text-secondary: #a1a1aa;\n\
      --accent: #6366f1;\n\
      --accent-hover: #818cf8;\n\
      --danger: #ef4444;\n\
      --success: #22c55e;\n\
      --border: #2e2e4a;\n\
    }\n\
    body {\n\
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;\n\
      background: var(--bg-primary);\n\
      color: var(--text-primary);\n\
      min-height: 100vh;\n\
    }\n\
    .container { max-width: 1200px; margin: 0 auto; padding: 20px; }\n\
    header {\n\
      background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));\n\
      padding: 20px;\n\
      border-radius: 12px;\n\
      margin-bottom: 20px;\n\
      border: 1px solid var(--border);\n\
    }\n\
    header h1 { font-size: 1.5rem; display: flex; align-items: center; gap: 10px; }\n\
    header h1::before { content: "📁"; }\n\
    .breadcrumb {\n\
      display: flex; align-items: center; gap: 8px; margin-top: 15px;\n\
      padding: 10px 15px; background: var(--bg-primary); border-radius: 8px;\n\
      overflow-x: auto;\n\
    }\n\
    .breadcrumb a {\n\
      color: var(--accent); text-decoration: none;\n\
      white-space: nowrap;\n\
    }\n\
    .breadcrumb a:hover { color: var(--accent-hover); }\n\
    .breadcrumb span { color: var(--text-secondary); }\n\
    .toolbar {\n\
      display: flex; gap: 10px; margin-bottom: 20px; flex-wrap: wrap;\n\
    }\n\
    .btn {\n\
      padding: 10px 20px; border: none; border-radius: 8px;\n\
      cursor: pointer; font-size: 14px; font-weight: 500;\n\
      transition: all 0.2s; display: flex; align-items: center; gap: 6px;\n\
    }\n\
    .btn-primary { background: var(--accent); color: white; }\n\
    .btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); }\n\
    .btn-danger { background: var(--danger); color: white; }\n\
    .btn-danger:hover { opacity: 0.9; }\n\
    .btn-secondary { background: var(--bg-tertiary); color: var(--text-primary); border: 1px solid var(--border); }\n\
    .btn-secondary:hover { background: var(--border); }\n\
    .file-list {\n\
      background: var(--bg-secondary); border-radius: 12px;\n\
      border: 1px solid var(--border); overflow: hidden;\n\
    }\n\
    .file-item {\n\
      display: flex; align-items: center; padding: 15px 20px;\n\
      border-bottom: 1px solid var(--border); cursor: pointer;\n\
      transition: background 0.2s;\n\
    }\n\
    .file-item:last-child { border-bottom: none; }\n\
    .file-item:hover { background: var(--bg-tertiary); }\n\
    .file-item.selected { background: rgba(99, 102, 241, 0.2); }\n\
    .file-icon { font-size: 24px; margin-right: 15px; }\n\
    .file-info { flex: 1; }\n\
    .file-name { font-weight: 500; margin-bottom: 4px; }\n\
    .file-meta { font-size: 12px; color: var(--text-secondary); }\n\
    .file-actions { display: flex; gap: 8px; opacity: 0; transition: opacity 0.2s; }\n\
    .file-item:hover .file-actions { opacity: 1; }\n\
    .action-btn {\n\
      width: 32px; height: 32px; border: none; border-radius: 6px;\n\
      cursor: pointer; display: flex; align-items: center; justify-content: center;\n\
      background: var(--bg-primary); color: var(--text-primary);\n\
      transition: all 0.2s;\n\
    }\n\
    .action-btn:hover { background: var(--accent); }\n\
    .action-btn.delete:hover { background: var(--danger); }\n\
    .modal-overlay {\n\
      position: fixed; top: 0; left: 0; right: 0; bottom: 0;\n\
      background: rgba(0,0,0,0.7); display: flex;\n\
      align-items: center; justify-content: center; z-index: 1000;\n\
    }\n\
    .modal {\n\
      background: var(--bg-secondary); border-radius: 12px;\n\
      padding: 25px; width: 90%; max-width: 500px;\n\
      border: 1px solid var(--border);\n\
    }\n\
    .modal h2 { margin-bottom: 20px; font-size: 1.2rem; }\n\
    .modal input, .modal textarea {\n\
      width: 100%; padding: 12px; border-radius: 8px;\n\
      border: 1px solid var(--border); background: var(--bg-primary);\n\
      color: var(--text-primary); margin-bottom: 15px; font-size: 14px;\n\
    }\n\
    .modal textarea { min-height: 200px; resize: vertical; font-family: monospace; }\n\
    .modal-actions { display: flex; gap: 10px; justify-content: flex-end; }\n\
    .empty-state {\n\
      text-align: center; padding: 60px 20px; color: var(--text-secondary);\n\
    }\n\
    .empty-state::before { content: "📂"; font-size: 48px; display: block; margin-bottom: 15px; }\n\
    .loading { text-align: center; padding: 40px; color: var(--text-secondary); }\n\
    .toast {\n\
      position: fixed; bottom: 20px; right: 20px; padding: 15px 25px;\n\
      background: var(--success); color: white; border-radius: 8px;\n\
      animation: slideIn 0.3s ease;\n\
    }\n\
    .toast.error { background: var(--danger); }\n\
    @keyframes slideIn { from { transform: translateX(100%); opacity: 0; } }\n\
  </style>\n\
</head>\n\
<body>\n\
  <div class="container">\n\
    <header>\n\
      <h1>File Manager</h1>\n\
      <div class="breadcrumb" id="breadcrumb"></div>\n\
    </header>\n\
    <div class="toolbar">\n\
      <button class="btn btn-primary" onclick="showNewFolderModal()">📁 新建文件夹</button>\n\
      <button class="btn btn-primary" onclick="showNewFileModal()">📄 新建文件</button>\n\
      <button class="btn btn-secondary" onclick="refresh()">🔄 刷新</button>\n\
    </div>\n\
    <div class="file-list" id="fileList">\n\
      <div class="loading">加载中...</div>\n\
    </div>\n\
  </div>\n\
  <div id="modalContainer"></div>\n\
  <script>\n\
    var currentPath = "/";\n\
    \n\
    function init() { loadDirectory("/"); }\n\
    \n\
    function loadDirectory(path) {\n\
      currentPath = path;\n\
      updateBreadcrumb();\n\
      document.getElementById("fileList").innerHTML = "<div class=\\"loading\\">加载中...</div>";\n\
      \n\
      fetch("/api/list?path=" + encodeURIComponent(path))\n\
        .then(function(r) { return r.json(); })\n\
        .then(function(data) {\n\
          if (!data.success) { showToast(data.error, true); return; }\n\
          renderFileList(data.data.entries);\n\
        })\n\
        .catch(function(e) { showToast("加载失败: " + e.message, true); });\n\
    }\n\
    \n\
    function renderFileList(entries) {\n\
      var list = document.getElementById("fileList");\n\
      if (!entries || entries.length === 0) {\n\
        list.innerHTML = "<div class=\\"empty-state\\">空文件夹</div>";\n\
        return;\n\
      }\n\
      \n\
      var html = "";\n\
      if (currentPath !== "/") {\n\
        html += "<div class=\\"file-item\\" onclick=\\"goUp()\\"><span class=\\"file-icon\\">⬆️</span><div class=\\"file-info\\"><div class=\\"file-name\\">..</div><div class=\\"file-meta\\">返回上级</div></div></div>";\n\
      }\n\
      \n\
      for (var i = 0; i < entries.length; i++) {\n\
        var e = entries[i];\n\
        var icon = e.isDir ? "📁" : getFileIcon(e.name);\n\
        var size = e.isDir ? "" : formatSize(e.size);\n\
        var onclick = e.isDir ? "navigateTo(\\"" + e.name + "\\")" : "viewFile(\\"" + e.name + "\\")";\n\
        \n\
        html += "<div class=\\"file-item\\" onclick=\\""+ onclick +"\\">";\n\
        html += "<span class=\\"file-icon\\">" + icon + "</span>";\n\
        html += "<div class=\\"file-info\\"><div class=\\"file-name\\">" + escapeHtml(e.name) + "</div>";\n\
        html += "<div class=\\"file-meta\\">" + size + "</div></div>";\n\
        html += "<div class=\\"file-actions\\">";\n\
        if (!e.isDir) {\n\
          html += "<button class=\\"action-btn\\" onclick=\\"event.stopPropagation();downloadFile(\\'"+e.name+"\\')\\">⬇️</button>";\n\
        }\n\
        html += "<button class=\\"action-btn\\" onclick=\\"event.stopPropagation();renameItem(\\'"+e.name+"\\')\\">✏️</button>";\n\
        html += "<button class=\\"action-btn delete\\" onclick=\\"event.stopPropagation();deleteItem(\\'"+e.name+"\\')\\">🗑️</button>";\n\
        html += "</div></div>";\n\
      }\n\
      list.innerHTML = html;\n\
    }\n\
    \n\
    function updateBreadcrumb() {\n\
      var parts = currentPath.split("/").filter(function(p) { return p; });\n\
      var html = "<a href=\\"#\\" onclick=\\"loadDirectory(\\'/\\');return false;\\">🏠 根目录</a>";\n\
      var path = "";\n\
      for (var i = 0; i < parts.length; i++) {\n\
        path += "/" + parts[i];\n\
        html += "<span>/</span><a href=\\"#\\" onclick=\\"loadDirectory(\\'"+path+"\\');return false;\\">" + escapeHtml(parts[i]) + "</a>";\n\
      }\n\
      document.getElementById("breadcrumb").innerHTML = html;\n\
    }\n\
    \n\
    function navigateTo(name) { loadDirectory(joinPath(currentPath, name)); }\n\
    function goUp() {\n\
      var parts = currentPath.split("/").filter(function(p) { return p; });\n\
      parts.pop();\n\
      loadDirectory("/" + parts.join("/"));\n\
    }\n\
    function refresh() { loadDirectory(currentPath); }\n\
    \n\
    function joinPath(base, name) {\n\
      if (base === "/") return "/" + name;\n\
      return base + "/" + name;\n\
    }\n\
    \n\
    function viewFile(name) {\n\
      var path = joinPath(currentPath, name);\n\
      fetch("/api/read", {\n\
        method: "POST",\n\
        headers: {"Content-Type": "application/json"},\n\
        body: JSON.stringify({path: path})\n\
      })\n\
      .then(function(r) { return r.json(); })\n\
      .then(function(data) {\n\
        if (!data.success) { showToast(data.error, true); return; }\n\
        showEditModal(name, data.data.content);\n\
      });\n\
    }\n\
    \n\
    function downloadFile(name) {\n\
      var path = joinPath(currentPath, name);\n\
      window.open("/api/download?path=" + encodeURIComponent(path));\n\
    }\n\
    \n\
    function deleteItem(name) {\n\
      if (!confirm("确定删除 " + name + "？")) return;\n\
      var path = joinPath(currentPath, name);\n\
      fetch("/api/delete", {\n\
        method: "POST",\n\
        headers: {"Content-Type": "application/json"},\n\
        body: JSON.stringify({path: path})\n\
      })\n\
      .then(function(r) { return r.json(); })\n\
      .then(function(data) {\n\
        if (data.success) { showToast("已删除"); refresh(); }\n\
        else { showToast(data.error, true); }\n\
      });\n\
    }\n\
    \n\
    function renameItem(name) {\n\
      var newName = prompt("输入新名称:", name);\n\
      if (!newName || newName === name) return;\n\
      var oldPath = joinPath(currentPath, name);\n\
      var newPath = joinPath(currentPath, newName);\n\
      fetch("/api/rename", {\n\
        method: "POST",\n\
        headers: {"Content-Type": "application/json"},\n\
        body: JSON.stringify({path: oldPath, newPath: newPath})\n\
      })\n\
      .then(function(r) { return r.json(); })\n\
      .then(function(data) {\n\
        if (data.success) { showToast("已重命名"); refresh(); }\n\
        else { showToast(data.error, true); }\n\
      });\n\
    }\n\
    \n\
    function showNewFolderModal() {\n\
      var name = prompt("文件夹名称:");\n\
      if (!name) return;\n\
      fetch("/api/mkdir", {\n\
        method: "POST",\n\
        headers: {"Content-Type": "application/json"},\n\
        body: JSON.stringify({path: joinPath(currentPath, name)})\n\
      })\n\
      .then(function(r) { return r.json(); })\n\
      .then(function(data) {\n\
        if (data.success) { showToast("已创建"); refresh(); }\n\
        else { showToast(data.error, true); }\n\
      });\n\
    }\n\
    \n\
    function showNewFileModal() {\n\
      var html = "<div class=\\"modal-overlay\\" onclick=\\"closeModal()\\">";\n\
      html += "<div class=\\"modal\\" onclick=\\"event.stopPropagation()\\">";\n\
      html += "<h2>📄 新建文件</h2>";\n\
      html += "<input type=\\"text\\" id=\\"newFileName\\" placeholder=\\"文件名\\">";\n\
      html += "<textarea id=\\"newFileContent\\" placeholder=\\"文件内容\\"></textarea>";\n\
      html += "<div class=\\"modal-actions\\">";\n\
      html += "<button class=\\"btn btn-secondary\\" onclick=\\"closeModal()\\">取消</button>";\n\
      html += "<button class=\\"btn btn-primary\\" onclick=\\"createFile()\\">创建</button>";\n\
      html += "</div></div></div>";\n\
      document.getElementById("modalContainer").innerHTML = html;\n\
    }\n\
    \n\
    function showEditModal(name, content) {\n\
      var html = "<div class=\\"modal-overlay\\" onclick=\\"closeModal()\\">";\n\
      html += "<div class=\\"modal\\" onclick=\\"event.stopPropagation()\\">";\n\
      html += "<h2>📝 编辑: " + escapeHtml(name) + "</h2>";\n\
      html += "<input type=\\"hidden\\" id=\\"editFileName\\" value=\\"" + escapeHtml(name) + "\\">";\n\
      html += "<textarea id=\\"editFileContent\\">" + escapeHtml(content) + "</textarea>";\n\
      html += "<div class=\\"modal-actions\\">";\n\
      html += "<button class=\\"btn btn-secondary\\" onclick=\\"closeModal()\\">取消</button>";\n\
      html += "<button class=\\"btn btn-primary\\" onclick=\\"saveFile()\\">保存</button>";\n\
      html += "</div></div></div>";\n\
      document.getElementById("modalContainer").innerHTML = html;\n\
    }\n\
    \n\
    function createFile() {\n\
      var name = document.getElementById("newFileName").value;\n\
      var content = document.getElementById("newFileContent").value;\n\
      if (!name) { showToast("请输入文件名", true); return; }\n\
      fetch("/api/write", {\n\
        method: "POST",\n\
        headers: {"Content-Type": "application/json"},\n\
        body: JSON.stringify({path: joinPath(currentPath, name), content: content})\n\
      })\n\
      .then(function(r) { return r.json(); })\n\
      .then(function(data) {\n\
        if (data.success) { closeModal(); showToast("已创建"); refresh(); }\n\
        else { showToast(data.error, true); }\n\
      });\n\
    }\n\
    \n\
    function saveFile() {\n\
      var name = document.getElementById("editFileName").value;\n\
      var content = document.getElementById("editFileContent").value;\n\
      fetch("/api/write", {\n\
        method: "POST",\n\
        headers: {"Content-Type": "application/json"},\n\
        body: JSON.stringify({path: joinPath(currentPath, name), content: content})\n\
      })\n\
      .then(function(r) { return r.json(); })\n\
      .then(function(data) {\n\
        if (data.success) { closeModal(); showToast("已保存"); }\n\
        else { showToast(data.error, true); }\n\
      });\n\
    }\n\
    \n\
    function closeModal() { document.getElementById("modalContainer").innerHTML = ""; }\n\
    \n\
    function showToast(msg, isError) {\n\
      var toast = document.createElement("div");\n\
      toast.className = "toast" + (isError ? " error" : "");\n\
      toast.textContent = msg;\n\
      document.body.appendChild(toast);\n\
      setTimeout(function() { toast.remove(); }, 3000);\n\
    }\n\
    \n\
    function formatSize(bytes) {\n\
      if (bytes === 0) return "0 B";\n\
      var k = 1024;\n\
      var sizes = ["B", "KB", "MB", "GB"];\n\
      var i = Math.floor(Math.log(bytes) / Math.log(k));\n\
      return parseFloat((bytes / Math.pow(k, i)).toFixed(1)) + " " + sizes[i];\n\
    }\n\
    \n\
    function getFileIcon(name) {\n\
      var ext = name.split(".").pop().toLowerCase();\n\
      var icons = {\n\
        js: "📜", json: "📋", html: "🌐", css: "🎨", md: "📝",\n\
        txt: "📄", log: "📃", py: "🐍", go: "🔵", java: "☕",\n\
        png: "🖼️", jpg: "🖼️", gif: "🖼️", svg: "🖼️",\n\
        mp3: "🎵", mp4: "🎬", pdf: "📕", zip: "📦", tar: "📦"\n\
      };\n\
      return icons[ext] || "📄";\n\
    }\n\
    \n\
    function escapeHtml(str) {\n\
      return String(str).replace(/&/g,"&amp;").replace(/</g,"&lt;").replace(/>/g,"&gt;").replace(/"/g,"&quot;");\n\
    }\n\
    \n\
    init();\n\
  </script>\n\
</body>\n\
</html>';
}