Hi! I am using Nginx 1.12.2 in a large and complex reverse-proxy configuration, with lots of content-rewriting (subs_filter, lua, ...).
Problem: - the client connects to my proxy - my proxy forwards the request to the origin - the origin responds with a 302: "Location: http://www.foo.com/"; ...or "Location: http://www.bar.com/"; ...or "Location: http://www.baz.com/"; ...and I have the following dynamic rewriting that I want to perform: * foo.com -> ding.org * bar.com -> dong.org * baz.com -> dell.org * ...more? So I have the following three (or more) rules: http { # ...etc proxy_redirect ~*^(.*?)\\b{foo\\.com}\\b(.*)$ $1ding.org$2; proxy_redirect ~*^(.*?)\\b{bar\\.com}\\b(.*)$ $1dong.org$2; proxy_redirect ~*^(.*?)\\b{baz\\.com}\\b(.*)$ $1dell.org$2; # ...more? ...and these work well most of the time. However: these do not function as-desired when the origin produces a 302 which mentions two or more *different* rewritable site names: "Location: http://www.foo.com/?next=%2F%2Fcdn.baz.com%2F"; <-- INPUT ...which I *want* to be rewritten as: "Location: http://www.ding.org/?next=%2F%2Fcdn.dell.org%2F"; <-- WANTED ...but instead I get: "Location: http://www.ding.org/?next=%2F%2Fcdn.baz.com%2F"; <-- ACTUAL i.e. the location is converted from `foo.com` to `ding.org`, but no further processing happens to convert `baz.com` in this example. The issue seems to be that `proxy_redirect` stops after executing the first rule that succeeds? Is this intended behaviour, please? And is there a way to achieve what I want, e.g. via options-flags or Lua? I am making heavy use of subs_filter, proxy_cookie_domain, etc. I've put one of my Nginx configuration files at https://gist.github.com/alecmuffett/f5cd8abcf161dbdaffd7a81ed8a088b9 if you'd like to see the issue in context. Thanks! - alec -- http://dropsafe.crypticide.com/aboutalecm
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