[Bug 455873] [NEW] mod proxy causes duplicate query strings when nocanon option is used

[James Troup]

Public bug reported:

Binary package hint: apache2

When mod proxy is used with the nocanon option apache duplicates the
query string arguments in the URL.  This is a known bug in 2.2.8 and
was fixed in 2.2.9, c.f.:

  <https://issues.apache.org/bugzilla/show_bug.cgi?id=44803>
  <http://mail-archives.apache.org/mod_mbox/httpd-cvs/200806.mbox/%3C20080605124644.4CB3E23889FF@eris.apache.org%3E>

To reproduce:

1) Create an apache.conf file, e.g. like:

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
LoadModule proxy_module /usr/lib/apache2/modules/mod_proxy.so
LoadModule proxy_http_module /usr/lib/apache2/modules/mod_proxy_http.so

Listen 5555

ErrorLog /dev/null
PidFile /dev/null

ProxyPass / http://127.0.0.1:8000/ nocanon
ProxyPassReverse / http://127.0.0.1:8000/
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

Then run apache with it, e.g. apache2 -X -f apache.conf

2) run 'python -m SimpleHTTPServer' in another terminal/window/whatever

3) finally run 'wget -q -O /dev/null http://localhost:5555/foo?bar' in
another terminal

Output from hardy(-updates) apache:

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
localhost - - [19/Oct/2009 23:16:09] code 404, message File not found
localhost - - [19/Oct/2009 23:16:09] "GET /foo?bar?bar HTTP/1.1" 404 -
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

Expected output:

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
localhost - - [19/Oct/2009 23:16:34] code 404, message File not found
localhost - - [19/Oct/2009 23:16:34] "GET /foo?bar HTTP/1.1" 404 -
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

Attached is a dpatch which we're using in production and fixes the
issue for us.  Could we please get an SRU with this for hardy?

** Affects: apache2 (Ubuntu)
     Importance: Undecided
         Status: New

-- 
mod proxy causes duplicate query strings when nocanon option is used
https://bugs.launchpad.net/bugs/455873
You received this bug notification because you are a member of Ubuntu
Server Team, which is subscribed to apache2 in ubuntu.