[Python-bugs-list] [ python-Bugs-408085 ] urllib.py https redirect-302 bug

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Bugs item #408085, was updated on 2001-03-12 17:05
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Category: Python Library
Group: None
Status: Open
Priority: 5
Submitted By: Dustin Boswell (boswell)
Assigned to: Moshe Zadka (moshez)
Summary: urllib.py https redirect-302 bug

Initial Comment:
Using urllib.urlopen("https://...") seems 
to hang because of a redirect problem. Looks 
like its trying to follow the redirect with 
http not https. 

>>> import urllib 
>>> params = ... 
>>> f = urllib.urlopen("https://...", params) 
connect: (securesite.com, 80) 
#a printout from httplib, line 354 

Traceback (most recent call last): 
File "<stdin>", line 1, in ? 
File "/usr/local/lib/python2.0/urllib.py", line 63, in
urlopen 
return _urlopener.open(url, data) 
File "/usr/local/lib/python2.0/urllib.py", line 168, in
open 
return getattr(self, name)(url, data) 
File "/usr/local/lib/python2.0/urllib.py", line 367, in
open_https 
data) 
File "/usr/local/lib/python2.0/urllib.py", line 301, in
http_error 
result = method(url, fp, errcode, errmsg, headers,
data) 
File "/usr/local/lib/python2.0/urllib.py", line 537, in
http_error_302 
return self.open(newurl, data) 
File "/usr/local/lib/python2.0/urllib.py", line 168, in
open 
return getattr(self, name)(url, data) 
File "/usr/local/lib/python2.0/urllib.py", line 269, in
open_http 
h.putrequest('POST', selector) 
File "/usr/local/lib/python2.0/httplib.py", line 428,
in putrequest 
self.send(str) 
File "/usr/local/lib/python2.0/httplib.py", line 370,
in send 
self.connect() 
File "/usr/local/lib/python2.0/httplib.py", line 354,
in connect 
self.sock.connect((self.host, self.port)) 
KeyboardInterrupt 
>>> 

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>Comment By: Moshe Zadka (moshez)
Date: 2001-03-18 01:13

Message:
Logged In: YES 
user_id=11645

Errr....I'm not sure I see the bug. Perhaps the "Location"
header actually contained an "http://" URL? If you can give
me the site or more information (like a printout of newurl),
I can probably be of more help.

In testing (sadly, against a server inside a firewall, so I
cannot give the URL) I have found that it seems to work.

One thing, that may or may not have to do with your problem:
when POSTing, a 302 means "POST to that other URL", not
"GET that other URL". Many webserver writers seem to ignore
this, and many browsers compensate for that server bug.
urllib2 does *not* compensate for that bug -- I haven't
thought through whether *that* may be the explanation.

----------------------------------------------------------------------

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