Thank you for your response. I am not looking to include additional content or synthetic something to the content. I am trying to rewrite the url in the content. This can be done by Apache mod_proxy_html. I made it working. But Apache breaks some web pages. I want to try something else. Yes. I want to change the content "on the fly". I found only Apache mod_proxy_html and Microsoft IIS .NET something can do it. All others are not able to do this. I would try inline C at Varnish. I do not want do anything with Microsoft. Thanks !
Fulan Peng On Fri, Feb 5, 2010 at 9:04 PM, Richard Chiswell <richard.chisw...@mangahigh.com> wrote: > Hello Fulan, > > I'm not sure what you are asking from Varnish. You could use its ESI ( > http://varnish-cache.org/wiki/ESIfeatures ) to include additional content or > "synthetic" ( http://varnish-cache.org/wiki/VCLSyntaxStrings ) to set the > content. I don't think you are able to change the contents of URLs "on the > fly" in Varnish without using inline C. > > If you are actually looking at redirecting URLs, you may find code such as: > > sub vcl_recv { > .... > if (req.url ~ "^/rgb([A-z0-9]+)$") { > error 750 "ukredirect"; > } > ... > } > sub vcl_error { > ... > if (obj.status == 750) { > if (obj.response == "ukredirect") { > set obj.http.Location = "http://" req.http.host > regsub(req.url,"^/rgb([A-z0-9]+)$","/en_gb/?utm_source=ukredirect&utm_medium=web&utm_campaign=\1"); > set obj.status = 301; > set obj.response = "Found"; > deliver; > } > } > ... > } > useful to redirect the users browser without touching the backend. > > Yours, > Richard > > fulan Peng wrote: >> >> Hi, >> >> I am looking for the functionality similar to Apache's mod_proxy_html. >> It can modify backend's content before it reach to customer. I used it >> to rewrite url in the links. >> >> Usually, when people are talking about url rewriting, they mean to >> rewrite the url before send out to backend. That is varnish's url >> rewriting. That is not I want. >> >> Thanks a lot! >> >> Fulan Peng >> _______________________________________________ >> varnish-misc mailing list >> varnish-misc@projects.linpro.no >> http://projects.linpro.no/mailman/listinfo/varnish-misc >> > > _______________________________________________ varnish-misc mailing list varnish-misc@projects.linpro.no http://projects.linpro.no/mailman/listinfo/varnish-misc