Add pycohttpparser support.

Author: Lukasa

.travis.yml

@@ -10,6 +10,7 @@ env:
   - TEST_RELEASE=false
   - TEST_RELEASE=true
   - NGHTTP2=true
+  - HYPER_FAST_PARSE=true
 
 matrix:
   allow_failures:

.travis/install.sh

@@ -39,5 +39,9 @@ if [[ "$NGHTTP2" = true ]]; then
     sudo ldconfig
 fi
 
+if [[ "$HYPER_FAST_PARSE" = true ]]; then
+    pip install pycohttpparser~=1.0
+fi
+
 pip install .
 pip install -r test_requirements.txt

hyper/http11/connection.py

@@ -10,13 +10,20 @@
 import socket
 
 from .response import HTTP11Response
-from .parser import Parser
 from ..tls import wrap_socket, H2_NPN_PROTOCOLS
 from ..http20.bufsocket import BufferedSocket
 from ..common.headers import HTTPHeaderMap
 from ..common.util import to_bytestring
 from ..compat import bytes
 
+
+# We prefer pycohttpparser to the pure-Python interpretation
+try:  # pragma: no cover
+    from pycohttpparser.api import Parser
+except ImportError:  # pragma: no cover
+    from .parser import Parser
+
+
 log = logging.getLogger(__name__)
 
 BODY_CHUNKED = 1

setup.py

@@ -68,4 +68,7 @@ def resolve_install_requires():
             'hyper = hyper.cli:main',
         ],
     },
+    extras_require={
+        'fast': ['pycohttpparser~=1.0'],
+    }
 )

test/test_http11.py

@@ -18,6 +18,20 @@
 
 
 class TestHTTP11Connection(object):
+    def test_pycohttpparser_installs_correctly(self):
+        # This test is a debugging tool: if pycohttpparser is being tested by
+        # Travis, we need to confirm it imports correctly. Hyper will normally
+        # hide the import failure, so let's discover it here.
+        # Alternatively, if we are *not* testing with nghttp2, this test should
+        # confirm that it's not available.
+        if os.environ.get('HYPER_FAST_PARSE'):
+            import pycohttpparser
+        else:
+            with pytest.raises(ImportError):
+                import pycohttpparser
+
+        assert True
+
     def test_initialization_no_port(self):
         c = HTTP11Connection('http2bin.org')