Rewrite rule based on cookie and matching URI for preview landing page

vhost_dotcom2013

RewriteEngine on
RewriteLog /var/log/apache2/rewrite.log
RewriteLogLevel 5

# Check whether the cookie role exists and whether the url does not contain PRV.shtml
# if so it executes the rewrite rule 
RewriteCond %{HTTP_COOKIE} role=(.*)
RewriteCond %{REQUEST_URI} !^.*_PRV.*
RewriteRule /art/(.*).shtml /art/$1_PRV.shtml [NC,QSA]

# se esiste il cookie e se la url non e' del tipo *_PRV.* => rimuovo il cookie
# it the cookie exists and the url does not contain _PRV => it gets rid of the cookie. 
RewriteCond %{HTTP_COOKIE} role=(.*)
RewriteCond %{REQUEST_URI} !^.*_PRV.*
Header set Set-Cookie "role='INVALID';expires='Thu, 01-Jan-1970 00:00:01 GMT';Path=/"


# se il file richiesto e' di tipo *_PRV.* ma il file non esiste => eseguo rediriect su una pagina di cortesia
# if the filename contains _PRV and it does not exist on the file system it executes a redirect to a landing page.

RewriteCond %{REQUEST_FILENAME} ^.*_PRV.*
RewriteCond %{DOCUMENT_ROOT}%{REQUEST_FILENAME} !-f
#RewriteRule /art/(.*)_PRV.shtml /art/redirectmax2.shtml [NC,QSA,L]
RewriteRule /art/(.*)_PRV.shtml /art/default.shtml [NC,QSA,L]