Add support for brotli compression over HTTP/1.1

Author: viranch

hyper/http11/response.py

@@ -9,6 +9,7 @@
 import logging
 import weakref
 import zlib
+import brotli
 
 from ..common.decoder import DeflateDecoder
 from ..common.exceptions import ChunkedDecodeError, InvalidResponseError
@@ -88,6 +89,8 @@ def __init__(self, code, reason, headers, sock, connection=None,
         # http://stackoverflow.com/a/2695466/1401686
         if b'gzip' in self.headers.get(b'content-encoding', []):
             self._decompressobj = zlib.decompressobj(16 + zlib.MAX_WBITS)
+        elif b'br' in self.headers.get(b'content-encoding', []):
+            self._decompressobj = brotli.Decompressor()
         elif b'deflate' in self.headers.get(b'content-encoding', []):
             self._decompressobj = DeflateDecoder()
         else:

test/test_http11.py

@@ -7,6 +7,7 @@
 """
 import os
 import zlib
+import brotli
 
 from collections import namedtuple
 from io import BytesIO, StringIO
@@ -644,6 +645,16 @@ def test_response_transparently_decrypts_gzip(self):
 
         assert r.read() == b'this is test data'
 
+    def test_response_transparently_decrypts_brotli(self):
+        d = DummySocket()
+        headers = {b'content-encoding': [b'br'], b'connection': [b'close']}
+        r = HTTP11Response(200, 'OK', headers, d, None)
+
+        body = brotli.compress(b'this is test data')
+        d._buffer = BytesIO(body)
+
+        assert r.read() == b'this is test data'
+
     def test_response_transparently_decrypts_real_deflate(self):
         d = DummySocket()
         headers = {