Red Hat Bugzilla – Bug 511325
ProxyPassReverse problem with parent directory listing
Last modified: 2009-12-18 04:37:46 EST
Description of problem:
I'm trying to configure a reverse proxy http://intranet.url where http://intranet.url/file go to intranet server http://file.url and
file.url is set up to provide directory listings.
When accessing http://intranet.url/file/a/a1 and clicking on the "Parent Directory" link, the URL is not remapped by proxypassreverse correctly and returns http://intranet.url/a/ instead of http://intranet.url/file/a/
Version-Release number of selected component (if applicable):
I'm using httpd-2.2.11-2.fc10.x86_64 for both intranet.url et file.url
Steps to Reproduce:
1. set up virtual host intranet.url and file.url in your httpd.conf
<VirtualHost *:80 >
Allow from all
RewriteRule ^/file$ file/ [R]
ProxyPass /file/ http://file.url/
ProxyPassReverse /file/ http://file.url/
<Directory "/var/www/file" >
Options Indexes FollowSymLinks
IndexOptions Charset="UTF-8" NameWidth=*
Allow from all
2. edit your /etc/hosts to add intranet.url and file.url to your local ip or localhost entry
3. extract file.tjz as tar tvjf file.tjz in /
3. take your browser and point to http://intranet.url/a/a1 and try to click on the "Parent Directory" link, it should not be correct
the URL on the "Parent Directory" link is not correct when using ProxyPassReverse
the URL on the "Parent Directory" link should be rewrited correctly by ProxyPassReverse
I put in attachment file.tjz which contains /var/www/file/* elements
Created attachment 351640 [details]
/var/www/file directories to test the httpd configuration
I may have an explanation of the current behavior.
When we look at the generated code by mod_autoindex, it seems that the directory elements links are generated with relative URLs. However, when I look at the "Parent Directory" link, it is generated as an absolute URL.
In the mod_proxy documentation, It says "Only the HTTP response headers specifically mentioned above will be rewritten. Apache will not rewrite other response headers, nor will it rewrite URL references inside HTML pages. This means that if the proxied content contains absolute URL references, they will by-pass the proxy."
From this, I understand that the "Parent Directory" link will not be modified as it is composed of an absolute URL.
Q1 : Would it be possible that mod_autoindex generates "Parent Directory" links as relative links ?
Q2 : In the mod_proxy documentation, they suggest to use another module mod_proxy_html, are there any plans to include it in Fedora releases ?
I tested my configuration with mod_proxy_html (http://apache.webthing.com/mod_proxy_html) by adding the two following lines in the intranet.url virtual host :
ProxyHTMLURLMap http://file.url/ /file
ProxyHTMLURLMap / /file/
And the problem is solved completely.
However, if you have any answers to the 2 previous questions, that would be nice, thanks. If not, just close the ticket.
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