When rewriting a url with the rewrite directive, is it possible to save
the
original url in a request header for the downstream handler?
Similar to the X-Rewrite-URL header built in to ISAPI rewrite.
Or in Apache, I can do it with something like:
#== Capture original uri and query string into environment variable so
it
can be put in a header
#== Match non-empty query string
RewriteCond %{QUERY_STRING} (^.+$)
RewriteRule (.*) $1 [E=x-rewrite-url:$1?%1]
# save old uri + arguments:
set $original_uri $uri$is_args$args;
# perform rewrite:
rewrite ^(.*)$ /new_uri/index.php;
# later on, in location defined downstream handler, add:
proxy_set_header X-Rewrite-URL $original_uri;