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fallback for platform who don't have SpooledTemporaryFile #1220

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fallback for platform who don't have SpooledTemporaryFile #1220

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18 changes: 16 additions & 2 deletions werkzeug/formparser.py
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Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,14 @@
"""
import re
import codecs
from tempfile import SpooledTemporaryFile
try:
from tempfile import SpooledTemporaryFile

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except ImportError:
# some platforms might not SpooledTemporaryFile support
# in that case we revert to the old TemporaryFile code
from tempfile import TemporaryFile
SpooledTemporaryFile = None

from itertools import chain, repeat, tee
from functools import update_wrapper

Expand All @@ -37,7 +44,14 @@
def default_stream_factory(total_content_length, filename, content_type,
content_length=None):
"""The stream factory that is used per default."""
return SpooledTemporaryFile(max_size=1024 * 500, mode='wb+')
max_size = 1024 * 500
if SpooledTemporaryFile is None:
if total_content_length > max_size:
return TemporaryFile('wb+')

return BytesIO()
else:
return SpooledTemporaryFile(max_size=max_size, mode='wb+')


def parse_form_data(environ, stream_factory=None, charset='utf-8',
Expand Down