From: Willem de Groot <willem@byte.nl>
Date: Fri, 21 Aug 2015 12:51:40 +0000 (+0200)
Subject: Allow multi-line headers
X-Git-Tag: v4.3.0b1~28^2~2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e984e74dcc7ee92a89cbd1bffa1640f30557bab8;p=thirdparty%2Ftornado.git

Allow multi-line headers
---

diff --git a/tornado/curl_httpclient.py b/tornado/curl_httpclient.py
index ae6f114a9..9c9481688 100644
--- a/tornado/curl_httpclient.py
+++ b/tornado/curl_httpclient.py
@@ -454,7 +454,8 @@ class CurlAsyncHTTPClient(AsyncHTTPClient):
         if header_callback is not None:
             self.io_loop.add_callback(header_callback, header_line)
         # header_line as returned by curl includes the end-of-line characters.
-        header_line = header_line.strip()
+        # whitespace at the start should be preserved to allow multi-line headers
+        header_line = header_line.rstrip()
         if header_line.startswith("HTTP/"):
             headers.clear()
             try: