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jumpserver/apps/common/drf/renders/csv.py

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# ~*~ coding: utf-8 ~*~
#
import codecs
import unicodecsv
from six import BytesIO
from .base import BaseFileRenderer
from ..const import CSV_FILE_ESCAPE_CHARS
class CSVFileRenderer(BaseFileRenderer):
media_type = 'text/csv'
format = 'csv'
writer = None
buffer = None
escape_chars = tuple(CSV_FILE_ESCAPE_CHARS)
def initial_writer(self):
csv_buffer = BytesIO()
csv_buffer.write(codecs.BOM_UTF8)
csv_writer = unicodecsv.writer(csv_buffer, encoding='utf-8')
self.buffer = csv_buffer
self.writer = csv_writer
def __render_row(self, row):
row_escape = []
for d in row:
if isinstance(d, str) and d.strip().startswith(self.escape_chars):
d = "'{}".format(d)
row_escape.append(d)
return row_escape
def write_row(self, row):
row = self.__render_row(row)
self.writer.writerow(row)
def get_rendered_value(self):
value = self.buffer.getvalue()
return value