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Refs #19705 -- Changed gzip modification times to 0.

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This makes gzip output deterministic, which allows
ConditionalGetMiddleware to reliably compare ETags on gzipped
content (views using the gzip_page() decorator in particular).
This commit is contained in:
Kevin Christopher Henry 2016-10-14 07:41:42 -04:00 • committed by Tim Graham
parent 9eb49af821
commit 9108696a75
2 changed files with 22 additions and 2 deletions
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4
django/utils/text.py
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@ -293,7 +293,7 @@ def phone2numeric(phone):
# Used with permission.
def compress_string(s):
zbuf = BytesIO()
with GzipFile(mode='wb', compresslevel=6, fileobj=zbuf) as zfile:
with GzipFile(mode='wb', compresslevel=6, fileobj=zbuf, mtime=0) as zfile:
zfile.write(s)
return zbuf.getvalue()
@ -322,7 +322,7 @@ class StreamingBuffer(object):
# Like compress_string, but for iterators of strings.
def compress_sequence(sequence):
buf = StreamingBuffer()
with GzipFile(mode='wb', compresslevel=6, fileobj=buf) as zfile:
with GzipFile(mode='wb', compresslevel=6, fileobj=buf, mtime=0) as zfile:
# Output headers...
yield buf.read()
for item in sequence: