Redirecting to an outside URL

rgomes · 2013-03-01T23:58:41+00:00

On Tue, Mar 5, 2013 at 2:13 PM, agentzh <age...@gmail.com> wrote: > Just ensure that you properly check attempts of writing to undeclared > Lua v...

Redirecting to an outside URL

rgomes

ngx.redirect() seems to be usable only with URIs on the same server--at least the documentation implies it (the only examples use local URIs).

What's the recommended way to redirect to an outside URL? Do I have to explicitly set the Location response header, and then explicitly return a 302 (ngx.HTTP_MOVED_TEMPORARILY)?

rgomes

Doing that seems to work, at any rate.

appa

You could use "plain" Nginx config and do a

302 return http://something

Le 1 mars 2013 17:20, "Ron Gomes" <rg...@consumer.org> a écrit :

Doing that seems to work, at any rate.

.

rgomes

I guess I could, but I'm thinking that putting as much of the logic as possible into the Lua source makes the flow clearer to anyone who's reading it.

On Friday, March 1, 2013 3:11:25 PM UTC-5, perusio wrote:

You could use "plain" Nginx config and do a

302 return http://something

agentzh

Hello!

On Fri, Mar 1, 2013 at 7:58 AM, Ron Gomes wrote:
> ngx.redirect() seems to be usable only with URIs on the same server--at
> least the documentation implies it (the only examples use local URIs).
>

No, it can work with absolute URLs as well:

    location = /t {
        content_by_lua '
            return ngx.redirect("http://www.google.com";)
        ';
    }

Accessing /t gives the response:

    HTTP/1.1 302 Moved Temporarily
    Server: nginx/1.2.7
    Date: Fri, 01 Mar 2013 20:37:24 GMT
    Content-Type: text/html
    Content-Length: 170
    Connection: keep-alive
    Location: http://www.google.com

    <html>
    <head><title>302 Found</title></head>
    <body bgcolor="white">
    <center><h1>302 Found</h1></center>
    <hr><center>nginx/1.2.7 (no pool)</center>
    </body>
    </html>

I've made it explicit in the documentation:

    http://wiki.nginx.org/HttpLuaModule#ngx.redirect

> What's the recommended way to redirect to an outside URL?

ngx.redirect() :)

> Do I have to explicitly set the Location response header, and then
> explicitly return a 302 (ngx.HTTP_MOVED_TEMPORARILY)?

Well, you could, but you don't have to :)

Best regards,
-agentzh