Greetings,
For a given image serving backend I use a reqrep to rewrite an incoming
scrambled URL and pass it on unscrambled:
reqrep ^(GET[^\ ]*)\ /image/\w{1}(\w{2})(\w{2})(\w{2})(.*) \1\
/storage\5/images/\3/\4\2
In the response should be the corresponding requested image. Since these
backend image servers have different configurations and setups (some use Nginx,
some use Apache + Squid, etc), I use a rspirep to pick up any 4xx errors and
throw the client a vanilla standardized error page instead:
rspirep ^(HTTP/...)\ 4[0-9][0-9].* \1\ 400\ Bad\ Request\nContent-Length:\
74\nContent-Type:\ text/html\n\n<FRAMESET...............[SNIP]
So far so good, but I'd like to take that a step further: somewhere on the
incoming URL (\w{1}) there's a single char that indicates the fixed dimensions
of the requested image. I'd like to use that to serve a "not available" image
with the exact same dimensions that are showed in the incoming URL. So
basically the question is: is it possible in the rspirep to have access to the
URL processed in reqrep or even the rewritten one?
Thanks in advance.
Pedro.
