Revert "fix(订单表单): 修复下载文件中文名乱码问题"

This reverts commit 511faa0fd842c52d615c51cb33b08640a356b4fa.

src/components/order-form/material-detail-mixin.js

@@ -37,73 +37,6 @@ import {
   NUMBER_TYPES
 } from './number-format-utils'
 
-/**
- * 将 Content-Disposition 中的 filename 进行容错解码，修复常见中文文件名乱码
- * @param {string|undefined|null} disposition
- * @param {string} fallback
- * @returns {string}
- */
-function resolveDownloadFilename(disposition, fallback) {
-  if (!disposition) return fallback
-  try {
-    const starMatch = /filename\*=([^']*)''([^;\n]+)/i.exec(disposition)
-    if (starMatch && starMatch[2]) {
-      return decodeURIComponent(starMatch[2])
-    }
-
-    const plainMatch = /filename="?([^;\n"]+)"?/i.exec(disposition)
-    if (plainMatch && plainMatch[1]) {
-      const raw = String(plainMatch[1])
-      const urlDecoded = tryDecodeURIComponent(raw)
-      return maybeDecodeLatin1ToUtf8(urlDecoded)
-    }
-  } catch (e) {
-    // ignore
-  }
-  return fallback
-}
-
-/**
- * @param {string} value
- * @returns {string}
- */
-function tryDecodeURIComponent(value) {
-  try {
-    return decodeURIComponent(value.replace(/\+/g, '%20'))
-  } catch (e) {
-    return value
-  }
-}
-
-/**
- * 常见场景：后端直接输出 UTF-8 字节到 header，浏览器按 latin1 解码，导致文件名变成“销售...”
- * @param {string} value
- * @returns {string}
- */
-function maybeDecodeLatin1ToUtf8(value) {
-  if (!value) return value
-
-  const chars = Array.from(value)
-  const isLatin1 = chars.every(ch => ch.charCodeAt(0) <= 0xFF)
-  if (!isLatin1) return value
-
-  try {
-    if (typeof TextDecoder === 'function') {
-      const bytes = Uint8Array.from(chars.map(ch => ch.charCodeAt(0)))
-      return new TextDecoder('utf-8').decode(bytes)
-    }
-  } catch (e) {
-    // ignore
-  }
-
-  try {
-    // 兼容没有 TextDecoder 的环境
-    return decodeURIComponent(escape(value))
-  } catch (e) {
-    return value
-  }
-}
-
 
 
 // 使用本地 PaginationConfig 作为分页数据结构描述
@@ -675,7 +608,13 @@ export default {
         const res = await downloadSalesOrderTemplate()
 
         const disposition = res?.headers?.['content-disposition'] || res?.headers?.['Content-Disposition']
-        const filename = resolveDownloadFilename(disposition, '销售订单模板.xlsx')
+        let filename = '销售订单模板.xlsx'
+        if (disposition) {
+          const utf8Match = /filename\*=UTF-8''([^;\n]+)/i.exec(disposition)
+          const plainMatch = /filename="?([^;\n"]+)"?/i.exec(disposition)
+          const raw = utf8Match ? decodeURIComponent(utf8Match[1]) : (plainMatch ? plainMatch[1] : '')
+          if (raw) filename = raw
+        }
 
         const blob = new Blob([res.data], { type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' })
         const url = window.URL.createObjectURL(blob)