Catch / mask 404

oresty.ml · 2017-10-03T15:32:29+00:00

I want to authenticate my HTML form with lua script. create a session variable and check if it is same . I tried it but it will not work . Please helpinde...

Catch / mask 404

oresty.ml

Hi!

Is it possible, in ?_by_lua_file, when the regular request handled byNginx results in 404 Not Found, to keep this from being sent to thebrowser, and redirect to another page instead (eg. a login page)?

I've seen several articles on the Internet on how to generate a 404, but Ihave not seen how to keep the 404 from happening...

Thanks,

Yves.

zchao1995

Maybe rewrite the status code from 404 to 302 and set the Location response header in the header_filter_by_lua phase can help you?

like:

header_filter_by_lua_block {
    if ngx.status == 404 then
      ngx.status = 302
     ngx.header["Location"] = location_url
   end
}

On Tuesday, October 3, 2017 at 3:32:31 PM UTC+8, ores...@yalis.fr wrote:

Hi!

Is it possible, in ?_by_lua_file, when the regular request handled by
Nginx results in 404 Not Found, to keep this from being sent to the
browser, and redirect to another page instead (eg. a login page)?

I've seen several articles on the Internet on how to generate a 404, but I
have not seen how to keep the 404 from happening...
Thanks,

Yves.

jonathan

you should be able to handle this in raw nginx by setting the 404 to a custom location, then issuing a return/rewrite in that location. the @ is commonly used because it won't match any legitimate traffic.

i haven't tried this with a 404 generated in openresty's lua blocks, but it should still work

error_page 404 = @foo;

location @foo {
  return 301 /;  # or rewrite
}