Rails - Oct 2005 - Need help from Apache mod_rewrite crew !

Hi !

Has anyone got any tips/tricks on running a Productized Rails app on 
DreamHost ?

Specifically, I get this in my error.log:
-----------
[Mon Oct 10 11:39:46 2005] [error] [client 69.70.225.69]
mod_rewrite: maximum number of internal redirects reached. Assuming 
configuration error. Use ''RewriteOptions MaxRedirects'' to
increase the
limit if neccessary.
-----------

As suggested, I know there''s something wrong with the rewrite 
conditions.  According to Apache''s docs, the default is 10 redirects, 
and I would guess that two are needed to get a Productized Rails app going.

Here''s the relevant part of .htaccess (reformatted for readability):
-----------
RewriteEngine On
RewriteRule ^$ index.html [QSA]

# Hack to fix mod_rewrite bug: we catch the incoming uri as an 
environment variable ''DOC''
RewriteRule "(.*)" "$1" [env=DOC:$1]

# If the requested file does not exist in SITE_ROOT/public...
RewriteCond %{DOCUMENT_ROOT}%{ENV:DOC} !-f
# ... then split its full path up in to manageable pieces ...
RewriteCond %{REQUEST_FILENAME} ^(.*)/sites/.+$
# ... and check to see if the file exists in the RAILS_ROOT/public
#     folder...
RewriteCond %1/public/%{ENV:DOC} -f
# ... if so, rewrite our requested file to be the RAILS_ROOT one
RewriteRule ^(.*)$ /generic/%{ENV:DOC} [NS,L]

RewriteRule ^([^.]+)$ $1.html [QSA]

RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ dispatch.fcgi [QSA,L]
-----------

For those of you that don''t know, a Productized Rails app is the same
as
a regular one, but the document root is moved into 
sites/site-name/public.  Then all requests are served hierarchically - 
first SITE_ROOT, then RAILS_ROOT if not found in site.

Thanks for any help !
François

Not sure about anything DreamHost specific, but I''ve run into this  
problem before. Let me see if I can get this right off the top of my  
head. :-)

If your physical file path is downstream from your DocumentRoot  
directory (for example, I have a docroot in /www and a Rails app in / 
www/rails/application_name), then you need to add a "RewriteBase / 
logical/path" to your .htaccess. (Assuming your Rails app should be  
accessible from http://appname.example.com/, just add "RewriteBase /".
--
Brad Ediger
866-EDIGERS


On Oct 10, 2005, at 1:51 PM, François Beausoleil wrote:
> Hi !
>
> Has anyone got any tips/tricks on running a Productized Rails app  
> on DreamHost ?
>
> Specifically, I get this in my error.log:
> -----------
> [Mon Oct 10 11:39:46 2005] [error] [client 69.70.225.69]
> mod_rewrite: maximum number of internal redirects reached. Assuming  
> configuration error. Use ''RewriteOptions MaxRedirects'' to
increase
> the limit if neccessary.
> -----------
>
> As suggested, I know there''s something wrong with the rewrite  
> conditions.  According to Apache''s docs, the default is 10  
> redirects, and I would guess that two are needed to get a  
> Productized Rails app going.
>
> Here''s the relevant part of .htaccess (reformatted for
readability):
> -----------
> RewriteEngine On
> RewriteRule ^$ index.html [QSA]
>
> # Hack to fix mod_rewrite bug: we catch the incoming uri as an  
> environment variable ''DOC''
> RewriteRule "(.*)" "$1" [env=DOC:$1]
>
> # If the requested file does not exist in SITE_ROOT/public...
> RewriteCond %{DOCUMENT_ROOT}%{ENV:DOC} !-f
> # ... then split its full path up in to manageable pieces ...
> RewriteCond %{REQUEST_FILENAME} ^(.*)/sites/.+$
> # ... and check to see if the file exists in the RAILS_ROOT/public
> #     folder...
> RewriteCond %1/public/%{ENV:DOC} -f
> # ... if so, rewrite our requested file to be the RAILS_ROOT one
> RewriteRule ^(.*)$ /generic/%{ENV:DOC} [NS,L]
>
> RewriteRule ^([^.]+)$ $1.html [QSA]
>
> RewriteCond %{REQUEST_FILENAME} !-f
> RewriteRule ^(.*)$ dispatch.fcgi [QSA,L]
> -----------
>
> For those of you that don''t know, a Productized Rails app is the  
> same as a regular one, but the document root is moved into sites/ 
> site-name/public.  Then all requests are served hierarchically -  
> first SITE_ROOT, then RAILS_ROOT if not found in site.
>
> Thanks for any help !
> François
>
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