Question

I have the following rewrite rules but every time I restart Apache they prevent apache from restarting and FAIL.

One error was…

Starting httpd: Syntax error on line 82 of /var/www/vhosts/current_release/url-rewrite-maps/catchall.txt: RewriteRule: cannot compile regular expression
'^/ProductDetails\.aspx\?PromotionID\(.*)\&id\(.*)$' [FAILED]

RewriteRule ^/ProductSearch\.aspx\?Ntt\=(.*)\&N\=(.*)$ catalogsearch/result/?q=$2 [R=302,L,NC]  
#old search redirect to search

RewriteRule ^/ProductSearch\.aspx\?viewall\=1\&N\=(.*)$ productsearch.aspx?N=$1 [R=302,NC]  
#viewall with N parameter to another redirect rule for URL with N= value only

RewriteRule ^/ProductSearch\.aspx\?(Ne|No)\=(.*)\&N\=(.*)$ productsearch.aspx?N=$3 [R=302,NC]  
#url with Ne OR No param and N= to productsearch.aspx redirect on URLs with N= only

RewriteRule ^/ProductDetails\.aspx\?PromotionID\=(.*)\&id\=(.*)$ productdetails.aspx?id=$2 [R=302,NC]  
#should pass the PID into the ID= and redirect from there

RewriteRule ^/ProductDetails\.aspx\?id\=(.*)\&RSSLINK\=(.*) productdetails.aspx?id=$1 [R=302, NC]

Thanks,

Brad

Answer 1

This is because what you are trying to do is invalid. You can’t access the query string through the regexp match pattern — its not allowed. You have to use a rewrite condition to pick up the query string, for example:

RewriteCond %{QUERY_STRING}          PromotionID=(.*?)&id=(.*) [NC]
RewriteRule ^/ProductDetails\.aspx$  productdetails.aspx?id=%2 [R=302,NC,L]

You can create a ladder of these and put a catchall at the bottom

RewriteCond %{ENV:REDIRECT_STATUS}   ^$
RewriteRule ^                        /catchall.txt [L]

This will do an internal redirect of any request that wasn’t matched by the previous rules to your catch all. The condition is there to stop an infinite redirection loop.