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Make brotli configurable by environment variable #117

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merged 3 commits into from
Jan 4, 2023
Merged

Make brotli configurable by environment variable #117

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7302899
Make brotli configurable by environment variable
ddelange Dec 9, 2022
a9d8e3d
Typo
ddelange Dec 9, 2022
57aa2df
Set default quality to 4
ddelange Dec 9, 2022
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11 changes: 9 additions & 2 deletions django_brotli/middleware.py
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Original file line number Diff line number Diff line change
@@ -1,6 +1,7 @@
# -*- encoding: utf-8 -*-
# ! python3

import os
import re

import brotli
Expand All @@ -14,10 +15,16 @@

RE_ACCEPT_ENCODING_BROTLI = re.compile(r"\bbr\b")
MIN_LEN_FOR_RESPONSE_TO_PROCESS = 200
BROTLI_MODE = getattr(brotli, os.environ.get("BROTLI_MODE", "MODE_GENERIC"))
BROTLI_QUALITY = int(os.environ.get("BROTLI_QUALITY", 4))

__all__ = ["BrotliMiddleware"]


def compress(obj):
return brotli.compress(obj, BROTLI_MODE, BROTLI_QUALITY)


# noinspection PyClassHasNoInit
class BrotliMiddleware(MiddlewareMixin):
"""
Expand Down Expand Up @@ -56,7 +63,7 @@ def process_response(
# we won't know the compressed size until we stream it.
del response["Content-Length"]
else:
compressed_content = brotli.compress(response.content)
compressed_content = compress(response.content)

# Return the compressed content only if it's actually shorter.
if len(compressed_content) >= len(response.content):
Expand All @@ -75,7 +82,7 @@ def process_response(
def compress_stream(self, streaming_content):
streaming_content = [line.decode("utf-8") for line in list(streaming_content)]
streaming_content = "".join(streaming_content).encode()
streaming_content = map(lambda x: x, [brotli.compress(streaming_content)])
streaming_content = map(lambda x: x, [compress(streaming_content)])

return streaming_content

Expand Down