fix: Excel export prohibits inputting external links or formulas (#3105)

Author: shaohuzhang1

apps/dataset/serializers/document_serializers.py

@@ -23,6 +23,8 @@
 from django.db.models import QuerySet, Count
 from django.db.models.functions import Substr, Reverse
 from django.http import HttpResponse
+from django.utils.translation import get_language
+from django.utils.translation import gettext_lazy as _, gettext, to_locale
 from drf_yasg import openapi
 from openpyxl.cell.cell import ILLEGAL_CHARACTERS_RE
 from rest_framework import serializers
@@ -64,8 +66,6 @@
     embedding_by_document_list
 from setting.models import Model
 from smartdoc.conf import PROJECT_DIR
-from django.utils.translation import gettext_lazy as _, gettext, to_locale
-from django.utils.translation import get_language
 
 parse_qa_handle_list = [XlsParseQAHandle(), CsvParseQAHandle(), XlsxParseQAHandle(), ZipParseQAHandle()]
 parse_table_handle_list = [CsvSplitTableHandle(), XlsSplitTableHandle(), XlsxSplitTableHandle()]
@@ -661,7 +661,10 @@ def get_workbook(data_dict, document_dict):
                         cell = worksheet.cell(row=row_idx + 1, column=col_idx + 1)
                         if isinstance(col, str):
                             col = re.sub(ILLEGAL_CHARACTERS_RE, '', col)
-                        cell.value = col
+                        if col.startswith(('=', '+', '-', '@')):
+                            cell.value = '\ufeff' + col
+                        else:
+                            cell.value = col
                     # 创建HttpResponse对象返回Excel文件
             return workbook