diff --git a/backup/.keep b/backup/.keep
new file mode 100644
index 0000000..e69de29
diff --git a/bookmark.js b/bookmark.js
new file mode 100644
index 0000000..b7d0f39
--- /dev/null
+++ b/bookmark.js
@@ -0,0 +1,28 @@
+const fs = require('fs')
+const {db} = require('./db')
+
+const action = process.argv[2] || 'export'
+const filepath = process.argv[3] || 'bookmarks.json'
+
+if (action === 'export') {
+  const bookmarks = db.prepare('select * from bookmark').all()
+  fs.writeFileSync(filepath, JSON.stringify(bookmarks))
+  console.log('bookmarks exported', filepath)
+} else if (action === 'import') {
+  let bookmarks = fs.readFileSync(filepath, 'utf8')
+  bookmarks = JSON.parse(bookmarks)
+  bookmarks.forEach(v => {
+    const {alias, target} = v
+    const exist = db.prepare('select alias from bookmark where alias=?').get(alias)
+    if (exist) {
+      db.prepare('update bookmark set target=? where alias=?').run(target, alias)
+    } else {
+      db.prepare('INSERT INTO bookmark (alias, target) VALUES (?, ?)').run(alias, target)
+    }
+  })
+  console.log('bookmarks imported', bookmarks)
+} else {
+  console.log('[help info]')
+  console.log('export: node bookmark.js export bm.json')
+  console.log('import: node bookmark.js import bm.json')
+}
diff --git a/clear-db.js b/clear-db.js
new file mode 100644
index 0000000..7fd505c
--- /dev/null
+++ b/clear-db.js
@@ -0,0 +1,8 @@
+const { db } = require('./db')
+
+const record = db.prepare('select count(*) as c from gd').get()
+db.prepare('delete from gd').run()
+console.log('已刪除', record.c, '項資料')
+
+db.exec('vacuum')
+db.close()
diff --git a/copy b/copy
index e7a7bf8..909f641 100755
--- a/copy
+++ b/copy
@@ -6,6 +6,8 @@ const { argv } = require('yargs')
   .usage('用法: ./$0 <source id> <target id> [options]\ntarget id可选，不填则使用config.js里的DEFAULT_TARGET')
   .alias('u', 'update')
   .describe('u', '不使用本地快取，則無視快取記錄強制從線上獲取源資料夾資訊')
+  .alias('y', 'yes')
+  .describe('yes', '如果發現拷貝紀錄，直接繼續上次的進度')
   .alias('f', 'file')
   .describe('f', '複製單一文件')
   .alias('n', 'name')
diff --git a/dedupe b/dedupe
index dd91f5a..0a9bb1e 100755
--- a/dedupe
+++ b/dedupe
@@ -2,6 +2,8 @@
 
 const { argv } = require('yargs')
   .usage('用法: ./$0 <folder-id> [options]')
+  .alias('y', 'yes')
+  .describe('yes', '如果發現重複項目，直接刪除')
   .alias('u', 'update')
   .describe('u', '不使用本地快取，則無視快取記錄強制從線上獲取源資料夾資訊')
   .alias('S', 'service_account')
diff --git a/src/gd.js b/src/gd.js
index 4cd6c81..316fe53 100644
--- a/src/gd.js
+++ b/src/gd.js
@@ -38,8 +38,9 @@ if (proxy_url) {
   axins = axios.create({})
 }
 
+const SA_LOCATION = argv.sa || 'sa'
 const SA_BATCH_SIZE = 1000
-const SA_FILES = fs.readdirSync(path.join(__dirname, '../sa')).filter(v => v.endsWith('.json'))
+const SA_FILES = fs.readdirSync(path.join(__dirname, SA_PATH)).filter(v => v.endsWith('.json'))
 SA_FILES.flag = 0
 let SA_TOKENS = get_sa_batch()
 
@@ -61,7 +62,7 @@ function get_sa_batch () {
   SA_FILES.flag = new_flag
   return files.map(filename => {
     const gtoken = new GoogleToken({
-      keyFile: path.join(__dirname, '../sa', filename),
+      keyFile: path.join(__dirname, SA_PATH, filename),
       scope: ['https://www.googleapis.com/auth/drive']
     })
     return { gtoken, expires: 0 }
@@ -197,7 +198,7 @@ function get_all_by_fid (fid) {
 }
 
 async function walk_and_save ({ fid, not_teamdrive, update, service_account }) {
-  const result = []
+  let result = []
   const not_finished = []
   const limit = pLimit(PARALLEL_LIMIT)
 
@@ -226,7 +227,7 @@ async function walk_and_save ({ fid, not_teamdrive, update, service_account }) {
     should_save && save_files_to_db(parent, files)
     const folders = files.filter(v => v.mimeType === FOLDER_TYPE)
     files.forEach(v => v.parent = parent)
-    result.push(...files)
+    result = result.concat(files)
     return Promise.all(folders.map(v => recur(v.id)))
   }
   try {
@@ -268,15 +269,21 @@ async function ls_folder ({ fid, not_teamdrive, service_account }) {
   params.pageSize = Math.min(PAGE_SIZE, 1000)
   // const use_sa = (fid !== 'root') && (service_account || !not_teamdrive) // 不带参数默认使用sa
   const use_sa = (fid !== 'root') && service_account
-  const headers = await gen_headers(use_sa)
+  // const headers = await gen_headers(use_sa)
+  // 对于直接子文件数超多的目录（1ctMwpIaBg8S1lrZDxdynLXJpMsm5guAl），可能还没列完，access_token就过期了
+  // 由于需要nextPageToken才能获取下一页的数据，所以无法用并行请求，测试发现每次获取1000个文件的请求大多需要20秒以上才能完成
+  const gtoken = use_sa && (await get_sa_token()).gtoken
   do {
     if (pageToken) params.pageToken = pageToken
     let url = 'https://www.googleapis.com/drive/v3/files'
     url += '?' + params_to_query(params)
-    const payload = { headers, timeout: TIMEOUT_BASE }
     let retry = 0
     let data
+    const payload = { timeout: TIMEOUT_BASE }
     while (!data && (retry < RETRY_LIMIT)) {
+      const access_token = gtoken ? (await gtoken.getToken()).access_token : (await get_access_token())
+      const headers = { authorization: 'Bearer ' + access_token }
+      payload.headers = headers
       try {
         data = (await axins.get(url, payload)).data
       } catch (err) {
@@ -291,6 +298,7 @@ async function ls_folder ({ fid, not_teamdrive, service_account }) {
       return files
     }
     files = files.concat(data.files)
+    argv.sfl && console.log('files.length:', files.length)
     pageToken = data.nextPageToken
   } while (pageToken)
 
@@ -466,7 +474,7 @@ async function real_copy ({ source, target, name, min_size, update, dncnr, not_t
   const record = db.prepare('select * from task where source=? and target=?').get(source, target)
   if (record) {
     const copied = db.prepare('select fileid from copied where taskid=?').all(record.id).map(v => v.fileid)
-    const choice = is_server ? 'continue' : await user_choose()
+    const choice = (is_server || argv.yes) ? 'continue' : await user_choose()
     if (choice === 'exit') {
       return console.log('退出程序')
     } else if (choice === 'continue') {
@@ -507,7 +515,7 @@ async function real_copy ({ source, target, name, min_size, update, dncnr, not_t
       if (min_size) files = files.filter(v => v.size >= min_size)
       const folders = arr.filter(v => v.mimeType === FOLDER_TYPE)
       console.log('待複製的目錄數：', folders.length)
-      console.log('待複製的檔案數：', files.length)
+      console.log('待複製的檔案數：', files.length) 
       const mapping = await create_folders({
         source,
         folders,
@@ -561,6 +569,7 @@ async function copy_files ({ files, mapping, service_account, root, task_id }) {
   do {
     if (err) {
       clearInterval(loop)
+      files = null
       throw err
     }
     if (concurrency > PARALLEL_LIMIT) {
@@ -632,7 +641,7 @@ async function copy_file (id, parent, use_sa, limit, task_id) {
       if (message && message.toLowerCase().includes('file limit')) {
         if (limit) limit.clearQueue()
         if (task_id) db.prepare('update task set status=? where id=?').run('error', task_id)
-        throw new Error('您的小組雲端硬碟文件數已超限，停止複製')
+        throw new Error(FILE_EXCEED_MSG)
       }
       if (use_sa && message && message.toLowerCase().includes('rate limit')) {
         SA_TOKENS = SA_TOKENS.filter(v => v.gtoken !== gtoken)
@@ -784,7 +793,7 @@ async function rm_file ({ fid, service_account }) {
   }
 }
 
-async function dedupe ({ fid, update, service_account }) {
+async function dedupe ({ fid, update, service_account, yes }) {
   let arr
   if (!update) {
     const info = get_all_by_fid(fid)
@@ -797,7 +806,7 @@ async function dedupe ({ fid, update, service_account }) {
   const dupes = find_dupe(arr)
   const folder_number = dupes.filter(v => v.mimeType === FOLDER_TYPE).length
   const file_number = dupes.length - folder_number
-  const choice = await confirm_dedupe({ file_number, folder_number })
+  const choice = yes || await confirm_dedupe({ file_number, folder_number })
   if (choice === 'no') {
     return console.log('退出程序')
   } else if (!choice) {
@@ -842,4 +851,4 @@ function print_progress (msg) {
   }
 }
 
-module.exports = { ls_folder, count, validate_fid, copy, dedupe, copy_file, gen_count_body, real_copy, get_name_by_id, get_info_by_id }
+module.exports = { ls_folder, count, validate_fid, copy, dedupe, copy_file, gen_count_body, real_copy, get_name_by_id, get_info_by_id, get_access_token, get_sa_token, walk_and_save }
diff --git a/src/router.js b/src/router.js
index aea53c1..b0421df 100644
--- a/src/router.js
+++ b/src/router.js
@@ -42,14 +42,15 @@ router.get('/api/gdurl/count', async ctx => {
 router.post('/api/gdurl/tgbot', async ctx => {
   const { body } = ctx.request
   console.log('ctx.ip', ctx.ip) // 可以只允许tg服务器的ip
-  console.log('tg message:', body)
+  console.log('tg message:', JSON.stringify(body, null, '  '))
   if (TG_IPLIST && !TG_IPLIST.includes(ctx.ip)) return ctx.body = 'invalid ip'
   ctx.body = '' // 早点释放连接
   const message = body.message || body.edited_message
+  const message_str = JSON.stringify(message)
 
   const { callback_query } = body
   if (callback_query) {
-    const { id, data } = callback_query
+    const { id, message, data } = callback_query
     const chat_id = callback_query.from.id
     const [action, fid, target] = data.split(' ').filter(v => v)
     if (action === 'count') {
@@ -67,22 +68,34 @@ router.post('/api/gdurl/tgbot', async ctx => {
       tg_copy({ fid, target: get_target_by_alias(target), chat_id }).then(task_id => {
         task_id && sm({ chat_id, text: `開始複製，任務ID: ${task_id} 可輸入 /task ${task_id} 查詢進度` })
       }).finally(() => COPYING_FIDS[fid] = false)
+    } else if (action === 'update') {
+      if (counting[fid]) return sm({ chat_id, text: fid + ' 正在統計，請稍等片刻' })
+      counting[fid] = true
+      send_count({ fid, chat_id, update: true }).finally(() => {
+        delete counting[fid]
+      })
+    } else if (action === 'clear_button') {
+      const { message_id, text } = message || {}
+      if (message_id) sm({ chat_id, message_id, text, parse_mode: 'HTML' }, 'editMessageText')
     }
     return reply_cb_query({ id, data }).catch(console.error)
   }
 
   const chat_id = message && message.chat && message.chat.id
-  const text = message && message.text && message.text.trim()
+  const text = (message && message.text && message.text.trim()) || ''
   let username = message && message.from && message.from.username
   username = username && String(username).toLowerCase()
   let user_id = message && message.from && message.from.id
   user_id = user_id && String(user_id).toLowerCase()
-  if (!chat_id || !text || !tg_whitelist.some(v => {
+  if (!chat_id || !tg_whitelist.some(v => {
     v = String(v).toLowerCase()
     return v === username || v === user_id
-  })) return console.warn('異常請求')
+  })) {
+    chat_id && sm({ chat_id, text: '您的使用者名稱或ID不在機器人的白名單中，如果是您配置的機器人，請先到config.js中配置自己的username' })
+    return console.warn('收到非白名單用戶的請求')
+  }
 
-  const fid = extract_fid(text) || extract_from_text(text)
+  const fid = extract_fid(text) || extract_from_text(text) || extract_from_text(message_str)
   const no_fid_commands = ['/task', '/help', '/bm']
   if (!no_fid_commands.some(cmd => text.startsWith(cmd)) && !validate_fid(fid)) {
     return sm({ chat_id, text: '未辨識到分享ID' })
@@ -93,7 +106,7 @@ router.post('/api/gdurl/tgbot', async ctx => {
     if (!action) return send_all_bookmarks(chat_id)
     if (action === 'set') {
       if (!alias || !target) return sm({ chat_id, text: '標籤名和dstID不能為空' })
-      if (alias.length > 24) return sm({ chat_id, text: '標籤名請勿超過24个英文字符' })
+      if (alias.length > 24) return sm({ chat_id, text: '標籤名不要超過24個英文字符長度' })
       if (!validate_fid(target)) return sm({ chat_id, text: 'dstID格式錯誤' })
       set_bookmark({ chat_id, alias, target })
     } else if (action === 'unset') {
@@ -143,10 +156,10 @@ router.post('/api/gdurl/tgbot', async ctx => {
       return running_tasks.forEach(v => send_task_info({ chat_id, task_id: v.id }).catch(console.error))
     }
     send_task_info({ task_id, chat_id }).catch(console.error)
-  } else if (text.includes('drive.google.com/') || validate_fid(text)) {
-    return send_choice({ fid: fid || text, chat_id }).catch(console.error)
+  } else if (message_str.includes('drive.google.com/') || validate_fid(text)) {
+    return send_choice({ fid: fid || text, chat_id })
   } else {
-    sm({ chat_id, text: '暫不支持此命令' })
+    sm({ chat_id, text: '暫不支援此命令' })
   }
 })
 
diff --git a/src/summary.js b/src/summary.js
index 4fa5819..be4377a 100644
--- a/src/summary.js
+++ b/src/summary.js
@@ -5,10 +5,10 @@ const { escape } = require('html-escaper')
 module.exports = { make_table, summary, make_html, make_tg_table }
 
 function make_html ({ file_count, folder_count, total_size, details }) {
-  const head = ['類型', '數量', '大小']
+  const head = ['类型', '数量', '大小']
   const th = '<tr>' + head.map(k => `<th>${k}</th>`).join('') + '</tr>'
   const td = details.map(v => '<tr>' + [escape(v.ext), v.count, v.size].map(k => `<td>${k}</td>`).join('') + '</tr>').join('')
-  let tail = ['合計', file_count + folder_count, total_size]
+  let tail = ['合计', file_count + folder_count, total_size]
   tail = '<tr style="font-weight:bold">' + tail.map(k => `<td>${k}</td>`).join('') + '</tr>'
   const table = `<table border="1" cellpadding="12" style="border-collapse:collapse;font-family:serif;font-size:22px;margin:10px auto;text-align: center">
     ${th}
@@ -26,7 +26,7 @@ function make_table ({ file_count, folder_count, total_size, details }) {
     return arr.map(content => ({ content, hAlign }))
   })
   const total_count = file_count + folder_count
-  const tails = ['總計', total_count, total_size].map(v => ({ content: colors.bold(v), hAlign }))
+  const tails = ['总计', total_count, total_size].map(v => ({ content: colors.bold(v), hAlign }))
   tb.push(headers, ...records)
   tb.push(tails)
   return tb.toString() + '\n'
@@ -56,8 +56,8 @@ function make_tg_table ({ file_count, folder_count, total_size, details }) {
   const hAlign = 'center'
   const headers = ['Type', 'Count', 'Size'].map(v => ({ content: v, hAlign }))
   details.forEach(v => {
-    if (v.ext === '資料夾') v.ext = '[Folder]'
-    if (v.ext === '無副檔名') v.ext = '[NoExt]'
+    if (v.ext === '文件夹') v.ext = '[Folder]'
+    if (v.ext === '无扩展名') v.ext = '[NoExt]'
   })
   const records = details.map(v => [v.ext, v.count, v.size]).map(arr => arr.map(content => ({ content, hAlign })))
   const total_count = file_count + folder_count
@@ -107,8 +107,8 @@ function summary (info, sort_by) {
   } else {
     details.sort((a, b) => b.count - a.count)
   }
-  if (no_ext) details.push({ ext: '無副檔名', count: no_ext, size: format_size(no_ext_size), raw_size: no_ext_size })
-  if (folder_count) details.push({ ext: '資料夾', count: folder_count, size: 0, raw_size: 0 })
+  if (no_ext) details.push({ ext: '无扩展名', count: no_ext, size: format_size(no_ext_size), raw_size: no_ext_size })
+  if (folder_count) details.push({ ext: '文件夹', count: folder_count, size: 0, raw_size: 0 })
   return { file_count, folder_count, total_size, details }
 }
 
diff --git a/src/tg.js b/src/tg.js
index 9c1e71f..8e4041d 100644
--- a/src/tg.js
+++ b/src/tg.js
@@ -10,7 +10,7 @@ const { BUTTON_LEVEL } = require('../config_mod')
 const { tg_token } = AUTH
 const gen_link = (fid, text) => `<a href="https://drive.google.com/drive/folders/${fid}">${text || fid}</a>`
 
-if (!tg_token) throw new Error('请先在config.js里设置tg_token')
+if (!tg_token) throw new Error('請先在config.js裡設定tg_token')
 const { https_proxy } = process.env
 const axins = axios.create(https_proxy ? { httpsAgent: new HttpsProxyAgent(https_proxy) } : {})
 
@@ -86,15 +86,15 @@ function clear_tasks (chat_id) {
 
 function rm_task ({ task_id, chat_id }) {
   const exist = db.prepare('select id from task where id=?').get(task_id)
-  if (!exist) return sm({ chat_id, text: `不存在任務ID為 ${task_id} 的任務紀錄` })
+  if (!exist) return sm({ chat_id, text: `不存在任務ID為 ${task_id} 的任務記錄` })
   db.prepare('delete from task where id=?').run(task_id)
   db.prepare('delete from copied where taskid=?').run(task_id)
-  if (chat_id) sm({ chat_id, text: `已刪除任務 ${task_id} 紀錄` })
+  if (chat_id) sm({ chat_id, text: `已刪除任務 ${task_id} 記錄` })
 }
 
 function send_all_bookmarks (chat_id) {
   let records = db.prepare('select alias, target from bookmark').all()
-  if (!records.length) return sm({ chat_id, text: '資料庫中沒有收藏紀錄' })
+  if (!records.length) return sm({ chat_id, text: '數據庫中沒有收藏記錄' })
   const tb = new Table({ style: { head: [], border: [] } })
   const headers = ['標籤名', 'dstID']
   records = records.map(v => [v.alias, v.target])
@@ -107,7 +107,7 @@ function set_bookmark ({ chat_id, alias, target }) {
   const record = db.prepare('select alias from bookmark where alias=?').get(alias)
   if (record) return sm({ chat_id, text: '資料庫中已有同名的收藏' })
   db.prepare('INSERT INTO bookmark (alias, target) VALUES (?, ?)').run(alias, target)
-  return sm({ chat_id, text: `成功設定收藏${alias} | ${target}` })
+  return sm({ chat_id, text: `成功設定收藏：${alias} | ${target}` })
 }
 
 function unset_bookmark ({ chat_id, alias }) {
@@ -139,6 +139,10 @@ function send_choice ({ fid, chat_id }) {
         ],
         [
           { text: '開始複製', callback_data: `copy ${fid}` }
+        ],
+        [
+          { text: '強制更新', callback_data: `update ${fid}` },
+          { text: '清除', callback_data: `clear_button` }
         ]
       ].concat(gen_bookmark_choices(fid))
     }
@@ -152,6 +156,10 @@ function send_choice ({ fid, chat_id }) {
         [
           { text: '文件統計', callback_data: `count ${fid}` },
           { text: '開始複製', callback_data: `copy ${fid}` }
+        ],
+        [
+          { text: '強制更新', callback_data: `update ${fid}` },
+          { text: '清除', callback_data: `clear_button` }
         ]
       ].concat(gen_bookmark_choices(fid))
     }
@@ -167,15 +175,12 @@ function gen_bookmark_choices (fid) {
   }else{
   	level = BUTTON_LEVEL
   }
-  const gen_choice = v => ({text: `複製到 ${v.alias}`, callback_data: `copy ${fid} ${v.alias}`})
+  const gen_choice = v => ({ text: `複製到 ${v.alias}`, callback_data: `copy ${fid} ${v.alias}` })
   const records = db.prepare('select * from bookmark').all()
   const result = []
-  for (let i = 0; i < records.length; i++) {
+  for (let i = 0; i < records.length; i += 2) {
     const line = [gen_choice(records[i])]
-    for(let j = 0; j < level-1; j ++){
-      if (records[i+1]) line.push(gen_choice(records[i+1]))
-        i++
-    }
+    if (records[i + 1]) line.push(gen_choice(records[i + 1]))
     result.push(line)
   }
   return result
@@ -201,8 +206,8 @@ async function send_all_tasks (chat_id) {
     // const description = err.response && err.response.data && err.response.data.description
     // if (description && description.includes('message is too long')) {
     if (true) {
-      const text = [headers].concat(records).map(v => v.join('\t')).join('\n')
-      return sm({ chat_id, parse_mode: 'HTML', text: `所有拷貝任務：\n<pre>${text}</pre>` })
+      const text = [headers].concat(records.slice(-100)).map(v => v.join('\t')).join('\n')
+      return sm({ chat_id, parse_mode: 'HTML', text: `所有拷貝任務(僅顯示最近100項)：\n<pre>${text}</pre>` })
     }
     console.error(err)
   })
@@ -247,10 +252,9 @@ async function send_task_info ({ task_id, chat_id }) {
   // get_task_info 在task目录数超大时比较吃cpu，以后如果最好把mapping也另存一张表
   if (!message_id || status !== 'copying') return
   const loop = setInterval(async () => {
-    const url = `https://api.telegram.org/bot${tg_token}/editMessageText`
     const { text, status } = await get_task_info(task_id)
     if (status !== 'copying') clearInterval(loop)
-    axins.post(url, { chat_id, message_id, text, parse_mode: 'HTML' }).catch(e => console.error(e.message))
+    sm({ chat_id, message_id, text, parse_mode: 'HTML' }, 'editMessageText')
   }, 10 * 1000)
 }
 
@@ -281,7 +285,7 @@ async function tg_copy ({ fid, target, chat_id, update }) { // return task_id
 
   real_copy({ source: fid, update, target, service_account: !USE_PERSONAL_AUTH, is_server: true })
     .then(async info => {
-      if (!record) record = {} // 防止无限循环
+      if (!record) record = {} // 防止無限循環
       if (!info) return
       const { task_id } = info
       const { text } = await get_task_info(task_id)
@@ -293,7 +297,7 @@ async function tg_copy ({ fid, target, chat_id, update }) { // return task_id
       if (!record) record = {}
       console.error('複製失敗', fid, '-->', target)
       console.error(err)
-      sm({ chat_id, text: '複製失敗，失敗訊息：' + err.message })
+      sm({ chat_id, text: (task_id || '') + '複製失敗，失敗訊息：' + err.message })
     })
 
   while (!record) {
@@ -320,7 +324,7 @@ function reply_cb_query ({ id, data }) {
 async function send_count ({ fid, chat_id, update }) {
   sm({ chat_id, text: `開始獲取 ${fid} 所有檔案資訊，請稍後，建議統計完成前先不要開始複製，因为複製也需要先獲取來源資料夾資訊` })
   const table = await gen_count_body({ fid, update, type: 'tg', service_account: !USE_PERSONAL_AUTH })
-  if (!table) return sm({ chat_id, parse_mode: 'HTML', text: gen_link(fid) + ' 信息获取失败' })
+  if (!table) return sm({ chat_id, parse_mode: 'HTML', text: gen_link(fid) + ' 資訊獲取失敗' })
   const url = `https://api.telegram.org/bot${tg_token}/sendMessage`
   const gd_link = `https://drive.google.com/drive/folders/${fid}`
   const name = await get_folder_name(fid)
@@ -346,18 +350,21 @@ ${table}</pre>`
 文件總數：${file_count}
 目錄總數：${folder_count}
 合計大小：${total_size}
-</pre>`
+</pre>` 
       })
     }
     throw err
   })
 }
 
-function sm (data) {
-  const url = `https://api.telegram.org/bot${tg_token}/sendMessage`
+function sm (data, endpoint) {
+  endpoint = endpoint || 'sendMessage'
+  const url = `https://api.telegram.org/bot${tg_token}/${endpoint}`
   return axins.post(url, data).catch(err => {
     // console.error('fail to post', url, data)
     console.error('fail to send message to tg:', err.message)
+    const err_data = err.response && err.response.data
+    err_data && console.error(err_data)
   })
 }
 
@@ -382,7 +389,8 @@ function extract_fid (text) {
 }
 
 function extract_from_text (text) {
-  const reg = /https?:\/\/drive.google.com\/[^\s]+/g
+  // const reg = /https?:\/\/drive.google.com\/[^\s]+/g
+  const reg = /https?:\/\/drive.google.com\/[a-zA-Z0-9_\\/?=&-]+/g
   const m = text.match(reg)
   return m && extract_fid(m[0])
 }
diff --git a/src/tree.js b/src/tree.js
index c90d13d..51440e1 100644
--- a/src/tree.js
+++ b/src/tree.js
@@ -39,7 +39,7 @@ function gen_tree_data (data, is_folder) {
   const files = data.filter(v => !is_folder(v))
   const total_size = sum(files.map(v => v.size))
   const root = {
-    title: `/根目錄 [共${files.length} 個檔案（不包括資料夾）, ${format_size(total_size)}]`,
+    title: `/根目录 [共${files.length} 个文件（不包括文件夹）, ${format_size(total_size)}]`,
     key: data[0].parent
   }
   if (!folders.length) return [root]
@@ -53,7 +53,7 @@ function gen_tree_data (data, is_folder) {
   folders.forEach(v => {
     let {name, size, count, id} = v
     if (name.length > 50) name = name.slice(0, 48) + '...'
-    v.title = `${name} | [共${count}個檔案 ${format_size(size)}]`
+    v.title = `${name} | [共${count}个文件 ${format_size(size)}]`
   })
   root.children = sub_folders.map(v => gen_node(v, folders))
   return [root]
diff --git a/validate-sa.js b/validate-sa.js
index 150ef7e..5f2ae7d 100755
--- a/validate-sa.js
+++ b/validate-sa.js
@@ -79,17 +79,27 @@ async function get_invalid_sa (arr, fid) {
       await get_info(fid, access_token)
       good++
     } catch (e) {
+      handle_error(e)
       const status = e && e.response && e.response.status
-      if (Number(status) === 400) fails.push(filename) // access_token 獲取失敗
+      if (Number(status) === 400) fails.push(filename) // access_token 获取失败
 
       const data = e && e.response && e.response.data
       const code = data && data.error && data.error.code
-      if (Number(code) === 404) fails.push(filename) // 讀取資料夾訊息失敗
+      if ([404, 403].includes(Number(code))) fails.push(filename) // 读取文件夹信息失败
     }
   }
   return fails
 }
 
+function handle_error (err) {
+  const data = err && err.response && err.response.data
+  if (data) {
+    console.error(JSON.stringify(data))
+  } else {
+    console.error(err.message)
+  }
+}
+
 async function get_info (fid, access_token) {
   let url = `https://www.googleapis.com/drive/v3/files/${fid}`
   let params = {