Haproxy and Nuster

Basics

case-insensitive for verb
allows any path/query values (except 0x00-0x20, >0x80):
- GET !i?lala=#anything HTTP/1.1
doesn't url-decode and normalize the path before applying rules
support converters:
- url_dec - url decodes (but sends undecoded to origin server), but spoils path_begin
path_* extracts the path, which starts at the first slash and ends before the first question mark
allows >1 Host:
- forwards all of them
doesn't forward AnyHeader : - 400 error
support line folding for headers ( Header:zzz-> concatenate with previous header)
no additional headers to backend

<html><body><h1>400 Bad request</h1>
Your browser sent an invalid request.
</body></html>

<html><body><h1>403 Forbidden</h1>
Request forbidden by administrative rules.
</body></html>

doesn't support (parse) Absolute-URI
forwards it as is
- GET http://backend.com/q?name=X&type=Y HTTP/1.1 -> GET http://backend.com/q?name=X&type=Y HTTP/1.1

Cache's been partly implemented in this version of HAproxy. It was not tested. Nuster was tested instead

default key of CACHE: method.scheme.host.uri
default key of NoSQL: GET.scheme.host.uri
- http://www.example.com/q?name=X&type=Y -> GET.http.www.example.com./q?name=X&type=Y
only 200 response is cached
doesn't respect Cache-Control, Expire headers from the origin
Does not honor the Pragma and the client's Cache-Control

acl restricted_page path_beg /admin

acl restricted_page path_beg,url_dec  /log