-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Jose,
On 1/14/15 8:27 AM, Jose María Zaragoza wrote: > 2015-01-14 12:46 GMT+01:00 André Warnier <a...@ice-sa.com>: >> Jose María Zaragoza wrote: >>> >>> Hello: >>> >>> I would like to create a web filter to forward some requests >>> to another webserver, >>> >>> The filter receives an "application/x-www-form-urlencoded" >>> request , inspects the value of a parameter and chooses to >>> forward to another remote webserver ( as a proxy ) > > > Thanks > > I agree with you . I'll try to use an Apache httpd front-end > > Anyway, I've seen that if I execute > > Map<String, String[]> parameter = ((HttpServletRequest) > request).getParameterMap(); > > , then request.getInputStream is empty > > > But if I execute > > Map<String, String[]> parameter = ((HttpServletRequest) > request).getParameterMap(); chain.doFilter(request, response); > > , the next filter in the chain receives the body ( as I expect it > ) > > I don't understand this behaviour I think that might be a bug... calling HttpServletRequest.getParameter* should cause the request entity to be parsed, as long as the content type is application/x-www-form-urlencoded. I think getParameterMap counts, but I'd have to review the spec & javadoc (where some fun spec requirements are hidden!). Anyhow, when you call HttpServletRequest.getParameter*, the container *must* consume the request, according to the spec. If you want to pull-in the request entity, you'll have to read it yourself using HttpServletRequest.getInputStream / HttpServletRequest.getReader. That means parsing it yourself, buffering it yourself, etc. You also get to wrap the request and re-supply the buffered request to the local web application should you choose to process it locally instead of proxy it remotely. Also note that Tomcat supplies some response headers itself that cannot be overridden, so you can't be a completely-transparent reverse proxy. Keep that in mind if you decide to go down this road... - -chris -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 Comment: GPGTools - http://gpgtools.org iQIcBAEBCAAGBQJUtr3zAAoJEBzwKT+lPKRYDzkP/1XM5y72x41YBG56xgcvzsV6 wQ1S5TLuEvzPGPBAR7sFWv+qCeZecIJ9WvkBTgaKiPm4Dn8rxLCvf34yaNTsHg7P D0POXQrON36lZmUfg9utIySv4L0Y88MCFpdEkJr38ENTOK7bhAGsNK6kITeR2rXJ z8XOOmMVgMYSGKqbUK3gbBKpifdr0fuSobcDPnJkOv751e63/jMzf0IBI2z3tQhe xsXEd3JaCjguzOIXBCgbXaZUxEk3EgBjHm3xlHX1GEYSIwr/PHqyTtK4a82r25Ny dhWbMsQc8hV018helpTVPj9ae0IUQXaDTsP+aXgXOwrzKXu1pLpMGeXjery54uwY gJG32tMfNKLVikiq5xIKBHObzplei/jHjDn66w9Z0W3SZiGhtg9xDynpgqFPxKHY iv/m5bwO0jPEUU7Yq99uu+jMwfJJDIWtWSKKrQ3IzmxJ6uNsiPhKX2jfTUn3wJ19 9q9ur/fER9nB9q4GAjUUVVe07Z4NH9ofPvXTKJExklpH64nCx99zmBYqXcLdsaxb 2uGJcl6bu7sKWm0GzL7+kSnvFhOfkfM9mDoVgNbxKyJEHRcurA91PL2DguEOuUtV g9pXrY+Sfd2siq2K1O1TX7wPOebNc/HFIWPux6rtGXB8/pc3XPhaM2UwlxpHfLzp YyN10GOrc+HacHHbtwHs =vczy -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
