New submission from Chi Hsuan Yen: This is originally my question at stackoverflow.com. (http://stackoverflow.com/q/30511341/3786245) I think it's a bug, so I posted it here.
I'm trying to fetch HTTPS pages through a proxy with digest authentication. Here are my codes: import urllib.request class SimplePasswordManager(object): def __init__(self, username, password): self.username = username self.password = password def add_password(self, realm, uri, user, passwd): pass def find_user_password(self, realm, authuri): return self.username, self.password proxy_handler = urllib.request.ProxyHandler({ 'http': '<proxy server ip>', 'https': '<proxy server ip>', }) password_mgr = SimplePasswordManager('<username>', '<password>') proxy_auth_handler = urllib.request.ProxyDigestAuthHandler(passwd=password_mgr) opener = urllib.request.build_opener(proxy_auth_handler, proxy_handler) req = opener.open('http://httpbin.org/ip') print(req.read().decode('ascii')) req = opener.open('https://httpbin.org/ip') print(req.read().decode('ascii')) And the results: { "origin": "<proxy server ip>" } Traceback (most recent call last): File "/usr/lib/python3.4/urllib/request.py", line 1182, in do_open h.request(req.get_method(), req.selector, req.data, headers) File "/usr/lib/python3.4/http/client.py", line 1088, in request self._send_request(method, url, body, headers) File "/usr/lib/python3.4/http/client.py", line 1126, in _send_request self.endheaders(body) File "/usr/lib/python3.4/http/client.py", line 1084, in endheaders self._send_output(message_body) File "/usr/lib/python3.4/http/client.py", line 922, in _send_output self.send(msg) File "/usr/lib/python3.4/http/client.py", line 857, in send self.connect() File "/usr/lib/python3.4/http/client.py", line 1223, in connect super().connect() File "/usr/lib/python3.4/http/client.py", line 837, in connect self._tunnel() File "/usr/lib/python3.4/http/client.py", line 820, in _tunnel message.strip())) OSError: Tunnel connection failed: 407 Proxy Authentication Required During handling of the above exception, another exception occurred: Traceback (most recent call last): File "proxy_test.py", line 25, in <module> req = opener.open('https://httpbin.org/ip') File "/usr/lib/python3.4/urllib/request.py", line 463, in open response = self._open(req, data) File "/usr/lib/python3.4/urllib/request.py", line 481, in _open '_open', req) File "/usr/lib/python3.4/urllib/request.py", line 441, in _call_chain result = func(*args) File "/usr/lib/python3.4/urllib/request.py", line 1225, in https_open context=self._context, check_hostname=self._check_hostname) File "/usr/lib/python3.4/urllib/request.py", line 1184, in do_open raise URLError(err) urllib.error.URLError: <urlopen error Tunnel connection failed: 407 Proxy Authentication Required> Seems HTTP connection works while HTTPS not. I think it's a bug in urllib. For HTTPS connections, HTTPConnection.connect() calls HTTPConnection._tunnel(), and the latter function throws an OSError for 407 when sending a CONNECT request. There's no chance for OpenerDirector.open() to call HTTPErrorProcessor.http_response(). As a result, 407 errors are not handled correctly in ProxyDigestAuthHandler.http_error_407(). Finally, is there a workaround before this is fixed? ---------- components: Library (Lib) messages: 244483 nosy: Chi Hsuan Yen priority: normal severity: normal status: open title: urllib2 HTTPS connection over a digest auth enabled proxy gives 407 type: behavior versions: Python 2.7, Python 3.2, Python 3.4, Python 3.6 _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue24333> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com