From 21b5679f1b3d64efab87efd64ffa39b09cb94d8c Mon Sep 17 00:00:00 2001
From: Nikolay Kim <nikolay.kim@affirm.com>
Date: Wed, 8 Feb 2017 10:29:29 -0800
Subject: [PATCH] droppped HttpPrefixParser #1590

---
 CHANGES.rst         |  2 ++
 aiohttp/protocol.py | 26 +-------------------------
 2 files changed, 3 insertions(+), 25 deletions(-)

diff --git a/CHANGES.rst b/CHANGES.rst
index dc5ccaa0076..efc809a53a6 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -3,3 +3,5 @@ CHANGES
 
 1.4.0 (XXXX-XX-XX)
 ------------------
+
+- Dropped: `aiohttp.protocol.HttpPrefixParser`  #1590
diff --git a/aiohttp/protocol.py b/aiohttp/protocol.py
index ef60be7cdcb..b876922bf3f 100644
--- a/aiohttp/protocol.py
+++ b/aiohttp/protocol.py
@@ -20,8 +20,7 @@
 __all__ = ('HttpMessage', 'Request', 'Response',
            'HttpVersion', 'HttpVersion10', 'HttpVersion11',
            'RawRequestMessage', 'RawResponseMessage',
-           'HttpPrefixParser', 'HttpRequestParser', 'HttpResponseParser',
-           'HttpPayloadParser')
+           'HttpRequestParser', 'HttpResponseParser', 'HttpPayloadParser')
 
 ASCIISET = set(string.printable)
 METHRE = re.compile('[A-Z0-9$-_.]+')
@@ -141,29 +140,6 @@ def parse_headers(self, lines):
         return headers, raw_headers, close_conn, encoding
 
 
-class HttpPrefixParser:
-    """Waits for 'HTTP' prefix (non destructive)"""
-
-    def __init__(self, allowed_methods=()):
-        self.allowed_methods = [m.upper() for m in allowed_methods]
-
-    def __call__(self, out, buf):
-        raw_data = yield from buf.waituntil(b' ', 12)
-        method = raw_data.decode('ascii', 'surrogateescape').strip()
-
-        # method
-        method = method.upper()
-        if not METHRE.match(method):
-            raise errors.BadStatusLine(method)
-
-        # allowed method
-        if self.allowed_methods and method not in self.allowed_methods:
-            raise errors.HttpMethodNotAllowed(message=method)
-
-        out.feed_data(method, len(method))
-        out.feed_eof()
-
-
 class HttpRequestParser(HttpParser):
     """Read request status line. Exception errors.BadStatusLine
     could be raised in case of any errors in status line.