Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

gh-69152: Add _proxy_response_headers attribute to HTTPConnection #26152

Merged
merged 7 commits into from
May 5, 2023
Merged

gh-69152: Add _proxy_response_headers attribute to HTTPConnection #26152

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
7 commits
Select commit Hold shift + click to select a range
0200725
add proxy_response_headers attr
nametkin May 13, 2021
7d8cefc
restore debug messages
nametkin May 13, 2021
367893d
add_test
nametkin May 15, 2021
48d9119
refactoring test
nametkin May 16, 2021
ec7f577
add record to NEWS
nametkin May 16, 2021
6d59c02
Merge branch 'main' into add_proxy_response_headers
nametkin May 5, 2023
232240e
Merge branch 'main' into add_proxy_response_headers
orsenthil May 5, 2023
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
18 changes: 7 additions & 11 deletions Lib/http/client.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -858,6 +858,7 @@ def __init__(self, host, port=None, timeout=socket._GLOBAL_DEFAULT_TIMEOUT,
self._tunnel_host = None
self._tunnel_port = None
self._tunnel_headers = {}
self._proxy_response_headers = None

(self.host, self.port) = self._get_hostport(host, port)

Expand Down Expand Up @@ -944,21 +945,16 @@ def _tunnel(self):
try:
(version, code, message) = response._read_status()

self._proxy_response_headers = parse_headers(response.fp)
Copy link
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

This always does complicated parsing of the data despite these headers not being used in 99.999% of use cases.

It'd be better to just call _read_headers(response.fp) and store that raw data privately, and add a get_proxy_response_headers() public method that triggers the parsing into data structures.

The debuglevel > 0 print loop should just loop over the raw unparsed headers.


if self.debuglevel > 0:
for hdr, val in self._proxy_response_headers.items():
print("header:", hdr + ":", val)

if code != http.HTTPStatus.OK:
self.close()
raise OSError(f"Tunnel connection failed: {code} {message.strip()}")
while True:
line = response.fp.readline(_MAXLINE + 1)
if len(line) > _MAXLINE:
raise LineTooLong("header line")
if not line:
# for sites which EOF without sending a trailer
break
if line in (b'\r\n', b'\n', b''):
break

if self.debuglevel > 0:
print('header:', line.decode())
finally:
response.close()

Expand Down
14 changes: 14 additions & 0 deletions Lib/test/test_httplib.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -2390,6 +2390,20 @@ def test_tunnel_debuglog(self):
lines = output.getvalue().splitlines()
self.assertIn('header: {}'.format(expected_header), lines)

def test_proxy_response_headers(self):
expected_header = ('X-Dummy', '1')
response_text = (
'HTTP/1.0 200 OK\r\n'
'{0}\r\n\r\n'.format(':'.join(expected_header))
)

self.conn._create_connection = self._create_connection(response_text)
self.conn.set_tunnel('destination.com')

self.conn.request('PUT', '/', '')
headers = self.conn._proxy_response_headers
self.assertIn(expected_header, headers.items())

def test_tunnel_leak(self):
sock = None

Expand Down
3 changes: 3 additions & 0 deletions Misc/NEWS.d/next/Library/2021-05-16-14-28-30.bpo-24964.Oa5Ie_.rst
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,3 @@
Added attribute '_proxy_response_headers' to HTTPConnection class. This
attribute contains the headers of the proxy server response to the CONNECT
request.