diff --git a/unitool.js b/unitool.js
index c864631..d310902 100644
--- a/unitool.js
+++ b/unitool.js
@@ -10,15 +10,6 @@ const my = {
     // getCurrentPages() 在 topWindow/App.vue 里有可能为空，所以用 getApp().$store 更安全. 20230513: 发现在微信小程序模拟器里，getApp().$store.state 未定义，所以还是用 globalThis.wo?.ss
     return globalThis.wo?.ss?.i18n?.mylang || getApp()?.$store?.state?.i18n?.mylang
   },
-  isTextFile (ext = '') {
-    return (wo.envar.textExtensionList || ['txt', 'text']).includes(ext.replace(/^\./, '').toLowerCase())
-  },
-  isImageFile (ext = '') {
-    return (wo.envar.imageExtensionList || ['jpg', 'jpeg', 'png', 'gif', 'webp', 'image']).includes(ext.replace(/^\./, '').toLowerCase())
-  },
-  isVideoFile (ext = '') {
-    return (wo.envar.videoExtensionList || ['avi', 'mp4', 'mov', 'wmv', 'video']).includes(ext.replace(/^\./, '').toLowerCase())
-  },
 }
 
 module.exports = {
@@ -46,6 +37,19 @@ module.exports = {
     // uniTag: { GREY: 'default', YELLOW: 'warning', BLUE: 'primary', GREEN: 'success', RED: 'error', PURPLE: 'royal' },
   },
 
+  is_text_file (fileName = '') {
+    const ext = /\./.test(fileName) ? fileName.split('.').pop().toLowerCase() : ''
+    return (wo.envar.textExtensionList || ['txt', 'text']).includes(ext)
+  },
+  is_image_file (fileName = '') {
+    const ext = /\./.test(fileName) ? fileName.split('.').pop().toLowerCase() : ''
+    return (wo.envar.imageExtensionList || ['jpg', 'jpeg', 'png', 'gif', 'webp', 'image']).includes(ext)
+  },
+  is_video_file (fileName = '') {
+    const ext = /\./.test(fileName) ? fileName.split('.').pop().toLowerCase() : ''
+    return (wo.envar.videoExtensionList || ['avi', 'mp4', 'mov', 'wmv', 'video']).includes(ext)
+  },
+
   thisPage () {
     return this.__page__
       ? this // constructor.name==='VueComponent' 只在 development 环境有用，在 production 环境会被简化成 'o'。
@@ -59,8 +63,8 @@ module.exports = {
       getCurrentPages()?.pop()?.i18nText // 如果不是挂载到 Vue.prototype 而是 挂载到 wo 下调用，那么 this.i18nText 就不存在了。因此通过 pageNow.i18nText 访问。
     return (
       i18nText?.[my.langNow()] ||
-      i18nText?.earth ||
-      i18nText?.default ||
+      i18nText?.earTH ||
+      i18nText?.defauLT ||
       i18nText?.enUS ||
       (['string', 'number', 'boolean'].includes(typeof i18nText) ? i18nText : '')
     ) // 必须检测是否标量值，如果直接返回 i18nText 可能返回{}等，导致依赖于返回空值的前端出错
@@ -310,6 +314,7 @@ module.exports = {
   },
 
   async pickupFile2Server ({
+    fileDragged,
     mediaType = 'image', // could be: image, video, array of supported extensions, anything else
     count = 1,
     sizeType = ['original', 'compressed'],
@@ -322,7 +327,14 @@ module.exports = {
     // 有的管理后台不需要登录就允许上传，例如 cmctoy。因此不要在这里依赖登录状态。
 
     let filePath, fileSize, filePicked
-    if (mediaType === 'image') {
+    if (fileDragged?.size) {
+      fileSize = fileDragged.size
+      filePath = fileDragged.filePath
+      filePicked = fileDragged
+      if (!mediaType) {
+        mediaType = this.is_image_file(fileDragged.name) ? 'image' : this.is_video_file(fileDragged.name) ? 'video' : 'file'
+      }
+    } else if (mediaType === 'image') {
       let [errorChoose, { tempFilePaths, tempFiles } = {}] = await uni.chooseImage({ count, sizeType, sourceType })
       if (errorChoose) {
         return {
@@ -378,15 +390,14 @@ module.exports = {
     }
 
     const fileName = filePicked?.name || filePath?.split?.('/')?.pop?.() // filePicked.name is available in WEB only. on the other hand, filePath 在 WEB 上并不是文件路径名，而是类似 "blob:http://localhost:8080/f0d3e54d-0694-4803-8097-641d76a10b0d“。在 iOS 上是 "_doc/uniapp_temp_1598593902955/compressed/1598593925815.png", 有时还包含从 file:/// 开始的完整路径名。
-    const fileExt = fileName?.split?.('.')?.pop?.()?.toLowerCase?.()
 
     if (
       // #ifndef APP
       // 20240830 luk: 在 App 上，就相信 iOS/Android，不检查文件后缀名。
-      (mediaType === 'image' && !my.isImageFile(fileExt)) ||
-      (mediaType === 'video' && !my.isVideoFile(fileExt)) ||
+      (mediaType === 'image' && !this.is_image_file(fileName)) ||
+      (mediaType === 'video' && !this.is_video_file(fileName)) ||
       // #endif
-      (Array.isArray(mediaType) && !mediaType?.includes?.('.' + fileExt))
+      (Array.isArray(mediaType) && !mediaType?.includes?.(/\./.test(fileName) ? '.' + fileName?.split?.('.')?.pop?.()?.toLowerCase?.() : ''))
     ) {
       return { _state: 'UNSUPPORTED_FILETYPE', _msg: { zhCN: '不支持的文件类型：\n' + fileName, enUS: 'Unsupported file type:\n' + fileName } }
     }
@@ -415,6 +426,11 @@ module.exports = {
       // 不知为何，uni.uploadFile返回的 data 是字符串而不是对象
       try {
         data = JSON.parse(data)
+        if (fileDragged?.name) {
+          // 20241020 不知为何，通过拖拽的文件上传后，得到的结果里 originalname 形如 "file-1729354713176" 而不是真正的原始文件名，也不包含后缀。为了保持一致，这里强行重新设置
+          data.originalnameSystem = data.originalname
+          data.originalname = fileDragged.name
+        }
       } catch (exp) {
         return {
           _state: 'BER_FAIL_RESPONSE_JSON_MALFORMED',
@@ -435,14 +451,27 @@ module.exports = {
     }
   },
 
-  async pickupFile2Cloud ({ mediaType = 'image', count = 1, sizeType = ['original', 'compressed'], sourceType = ['album', 'camera'], maxDuration } = {}) {
+  async pickupFile2Cloud ({
+    fileDragged,
+    mediaType = 'image',
+    count = 1,
+    sizeType = ['original', 'compressed'],
+    sourceType = ['album', 'camera'],
+    maxDuration,
+  } = {}) {
     // 有的管理后台不需要登录就允许上传，例如 cmctoy。因此不要在这里依赖登录状态。
     // if (!uni.getStorageSync('_passtoken')) {
     //   return { _state: 'USER_OFFLINE', errMsg: 'offline user cannot upload files' }
     // }
 
     let filePath, cloudPath, fileSize, filePicked
-    if (mediaType === 'image') {
+    let random = crypto.randomBytes(16).toString('hex')
+    if (fileDragged?.size) {
+      fileSize = fileDragged.size
+      filePath = fileDragged.filePath
+      filePicked = fileDragged
+      cloudPath = `WEB_${wo.envar.clientInfo.osName}_${random}_${path.extname(fileDragged.name || { image: '.jpg', video: '.mp4' }[mediaType] || '')}` // tempFile and name are H5 only
+    } else if (mediaType === 'image') {
       let [errorChoose, { tempFilePaths, tempFiles } = {}] = await uni.chooseImage({ count, sizeType, sourceType })
       if (errorChoose) {
         return {
@@ -453,16 +482,14 @@ module.exports = {
       fileSize = tempFiles?.[0]?.size
       filePicked = tempFiles?.[0]
       filePath = tempFilePaths?.[0] // 在 H5 上并不是文件路径名，而是类似 "blob:http://localhost:8080/f0d3e54d-0694-4803-8097-641d76a10b0d“。// 在 iOS 上是 "_doc/uniapp_temp_1598593902955/compressed/1598593925815.png", 有时还包含从 file:/// 开始的完整路径名
-      let random = crypto.randomBytes(16).toString('hex')
       // #ifndef WEB
       // let [errorGetImageInfo, { path, width, height, orientation, type }] = await uni.getImageInfo({ src: filePath })
       // cloudPath = path // 完整路径，包含后缀名。形如 file:///var/mobile/Containers/Data/Application/55A76332-44F5-4D5F-A9F6-3F857D584883/Documents/Pandora/apps/D064A425A8BEC13F9D8F741B98B37BC5/doc/uniapp_temp_1598593902955/compressed/1598593925815.png
-      cloudPath = `APP_${wo.envar.clientInfo.osName}_${random}${path.extname(filePath || '')}`
+      cloudPath = `APP_${wo.envar.clientInfo.osName}_${random}${path.extname(filePath || '.jpg')}`
       // #endif
       // #ifdef WEB
-      cloudPath = `WEB_${wo.envar.clientInfo.osName}_${random}${path.extname(tempFiles?.[0]?.name || '')}` // name is available in H5 only. 只包含文件名和后缀名，不包含路径。
+      cloudPath = `WEB_${wo.envar.clientInfo.osName}_${random}${path.extname(tempFiles?.[0]?.name || '.jpg')}` // name is available in H5 only. 只包含文件名和后缀名，不包含路径。
       // #endif
-      if (!path.extname(cloudPath)) cloudPath += '.jpg'
     } else if (mediaType === 'video') {
       let [errorChoose, { tempFilePath, tempFile, duration, size, width, height, name }] = await uni.chooseVideo({ sourceType, maxDuration })
       if (errorChoose) {
@@ -474,16 +501,14 @@ module.exports = {
       fileSize = size
       filePicked = tempFile
       filePath = tempFilePath // 在 iOS 上形如 "file:///var/mobile/Containers/Data/Application/55A76332-44F5-4D5F-A9F6-3F857D584883/Documents/Pandora/apps/26B43CD2F587D37FC6799108434A6F84/doc/uniapp_temp_1598596171580/gallery/IMG_3082.MOV"
-      let random = crypto.randomBytes(16).toString('hex')
       // #ifndef WEB
-      cloudPath = `APP_${wo.envar.clientInfo.osName}_${random}_dur${duration}${path.extname(filePath || '')}`
+      cloudPath = `APP_${wo.envar.clientInfo.osName}_${random}_dur${duration}${path.extname(filePath || '.mp4')}`
       // #endif
       // #ifdef WEB
-      cloudPath = `WEB_${wo.envar.clientInfo.osName}_${random}_dur${duration}${path.extname(name || '')}` // tempFile and name are H5 only
+      cloudPath = `WEB_${wo.envar.clientInfo.osName}_${random}_dur${duration}${path.extname(name || '.mp4')}` // tempFile and name are H5 only
       // #endif
       // iOS 上测试，filePath 为 *.MOV，而阿里云只允许 *.mp4, 所以默认添加 .mp4 后缀。参见 https://uniapp.dcloud.net.cn/uniCloud/storage?id=clouduploadfile
       // 20200915测试，阿里云支持上传 *.mov 了。
-      if (!path.extname(cloudPath)) cloudPath += '.mp4'
     } else {
       // #ifdef WEB
       // https://uniapp.dcloud.net.cn/uniCloud/storage.html#uploadfile
@@ -503,6 +528,8 @@ module.exports = {
       }
       fileSize = tempFiles?.[0]?.size
       filePicked = tempFiles?.[0]
+      filePath = tempFilePaths?.[0]
+      cloudPath = `WEB_${wo.envar.clientInfo.osName}_${random}${path.extname(tempFiles?.[0]?.name || '')}` // name is available in H5 only. 只包含文件名和后缀名，不包含路径。
       // #endif
       // #ifndef WEB
       return { _state: 'UNSUPPORTED_FILETYPE', _msg: { zhCN: '请切换到网页端上传文件！', enUS: 'Please switch to WebApp to upload files.' } }
@@ -520,15 +547,14 @@ module.exports = {
     }
 
     const fileName = filePicked?.name || filePath?.split?.('/')?.pop?.() // filePicked.name is available in WEB only. on the other hand, filePath 在 WEB 上并不是文件路径名，而是类似 "blob:http://localhost:8080/f0d3e54d-0694-4803-8097-641d76a10b0d“。在 iOS 上是 "_doc/uniapp_temp_1598593902955/compressed/1598593925815.png", 有时还包含从 file:/// 开始的完整路径名。
-    const fileExt = fileName?.split?.('.')?.pop?.()?.toLowerCase?.()
 
     if (
       // #ifndef APP
       // 20240830 luk: 在 App 上，就相信 iOS/Android，不检查文件后缀名。
-      (mediaType === 'image' && !my.isImageFile(fileExt)) ||
-      (mediaType === 'video' && !my.isVideoFile(fileExt)) ||
+      (mediaType === 'image' && !this.is_image_file(fileName)) ||
+      (mediaType === 'video' && !this.is_video_file(fileName)) ||
       // #endif
-      (Array.isArray(mediaType) && !mediaType?.includes?.('.' + fileExt))
+      (Array.isArray(mediaType) && !mediaType?.includes?.(/\./.test(fileName) ? '.' + fileName?.split?.('.')?.pop?.()?.toLowerCase?.() : ''))
     ) {
       return { _state: 'UNSUPPORTED_FILETYPE', _msg: { zhCN: '不支持的文件类型：\n' + fileName, enUS: 'Unsupported file type:\n' + fileName } }
     }
@@ -568,6 +594,7 @@ module.exports = {
 
   async pickupFile ({
     baseType = globalThis.wo?.envar?.baseTypeDefault || BASE_TYPE_DEFAULT,
+    fileDragged,
     mediaType = 'image', // could be image, video, array of supported extensions, anything else // 20240502 todo: rename to pickupFileType
     count = 1,
     sizeType = ['original', 'compressed'],
@@ -579,9 +606,9 @@ module.exports = {
     name = 'file',
   } = {}) {
     if (/^UNICLOUD/.test(baseType)) {
-      return await this.pickupFile2Cloud({ mediaType, count, sizeType, sourceType, maxDuration })
+      return await this.pickupFile2Cloud({ fileDragged, mediaType, count, sizeType, sourceType, maxDuration })
     } else if (baseType === 'SERVER') {
-      return await this.pickupFile2Server({ mediaType, count, sizeType, sourceType, maxDuration, url, header, formData, name })
+      return await this.pickupFile2Server({ fileDragged, mediaType, count, sizeType, sourceType, maxDuration, url, header, formData, name })
     } else {
       return { _state: 'CLEINT_FAIL_UNKNOWN_WOBASE_TYPE', baseType, _msg: { zhCN: '不支持的后台类型。', enUS: 'Unsupported base type.' } }
     }