Can't log/print in header_filter_by_lua

[Jader H. Silva]

*ngx.print()* is only valid for r*ewrite_by_lua*, access_by_lua* and
content_by_lua*.* Maybe your looking for* print()

ngx.log* should work though*.
*

*
*


2013/5/20 Ramesh Muraleedharan <ramesh1987 at gmail.com>

> Hi all,
>
> I've been experimenting with rewriting 'Set Cookie' headers in a
> nginx-reverse-proxy effort.
>
> The Set-Cookie rewrite doesn't seem to work yet, and more importantly, my
> log/print statements don't print to error_log as directed, making it very
> difficult to debug.
>
> http {
>
> server {
>      access_log /home/bhedia/access.log;
>      #error_log /home/bhedia/errors.log debug;
>      error_log /home/bhedia/errors.log notice;
>
>      listen   80;
>
>      root /usr/share/nginx/www;
>      #index index.html index.htm;
>
>      # Make site accessible from http://localhost:8080/
>      server_name localhost;
>
>      location / {
>
>           proxy_pass           http://10.45.17.85:50088/;
>           proxy_set_header     Host booga.booga.com;
>           #proxy_cookie_domain    test-sites.com booga.booga.com;
>
>           header_filter_by_lua '
>        ngx.log(ngx.NOTICE, "hello world")
>                local cookies = ngx.header.set_cookie
>                if not cookies then return end
>                if type(cookies) ~= "table" then cookies = {cookies} end
>                local newcookies = {}
>                for i, val in ipairs(cookies) do
>                    local newval = string.gsub(val,
> "([dD]omain)=[%w_-\\\\.-]+",
>                           "%1=booga.booga.com")
>    ngx.print(val)
>    ngx.print(newval)
>                    table.insert(newcookies, newval)
>                end
>                ngx.header.set_cookie = newcookies
>               ';
>      }
> }
> }
>
> Any help would be appreciated.
>
> Thanks!
>
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