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Mod setenv » History » Revision 12

Revision 11 (simmel, 2009-11-05 10:14) → Revision 12/30 (simmel, 2012-08-11 10:42) 

h1. Conditional Request Headers 

 {{>toc}} 

 *Module: mod_setenv* 

 h2. Description 

 The setenv module allows influencing the environment external applications are spawned in and the response headers the server sends to the clients. 

 h2. Automatic Decompression 

 If you have a lot text-files compressed with gzip on disk and want that the browser is decompressing them on retrival you can use setenv to inject the Content-Encoding header: 

 <pre> 

   $HTTP["url"] =~ "(README|ChangeLog|\.txt)\.gz$" { 
     setenv.add-response-header    = ( "Content-Encoding" => "gzip") 
     mimetype.assign = ("" => "text/plain" ) 
   } 

 </pre> 

 h2. Options 

 *setenv.add-environment* 
 Adds a value to the process environment (aka environment variables) that is passed to the external applications: 

 <pre> 

     setenv.add-environment = (  
       "TRAC_ENV" => "lighttpd", 
       "RAILS_ENV" => "production" 
     ) 

 </pre> 

 *setenv.add-response-header* 
 Adds a header to the HTTP response sent to the client: 
 
 <pre> 

     setenv.add-response-header = ( 
       "Content-Encoding" => "gzip"  
     ) 

 </pre> 

 *setenv.add-request-header* 
 Adds a header to the HTTP request that was received from the client :: 

 <pre> 

     setenv.add-request-header = ( 
       "X-Proxy" => server.name 
     ) 

 </pre>