Hey Guys,
I posted my setup before but for this thread I'll do it again.
For http I have: varnish(80) -> nginx(8080) -> unicorn
And for https: nginx(443) -> varnish(80) -> nginx(8080) -> unicorn
Nginx has these proxy settings for the 443 vhost:
location / {
…
access_log off;
proxy_redirect off;
proxy_pass http://www.ccc.de;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-FORWARDED-PROTO https;
}
…
So I explicitly set this header. This way varnish(80), nginx(8080), unicorn and
ultimately rails will get this Header and know that this was a https request.
This works for me perfectly and maybe that is helpful for you ? If not never
mind ;)
After all this header is a non standard extension introduced by squid. Theres a
nice wikipedia page about it: http://en.wikipedia.org/wiki/X-Forwarded-For
Kind regards, John
On 10.01.2010, at 07:32, Eric Wong wrote:
> Eric Wong <[email protected]> wrote:
>> Iñaki Baz Castillo <[email protected]> wrote:
>>> In your case it seems valid for me (just an opinnion) as
>>> "HTTP_X_FORWARDED_PROTO: http,https" could mean that the request has been
>>> sent
>>> using HTTPS and an intermediary proxy has forwarded it using HTTP. Of
>>> course
>>> the final destination (Unicorn application) must be ready to support such
>>> syntax.
>>
>> Is it safe to say that if there's an "https" *anywhere* in the
>> X-Forwarded-Proto chain, that "rack.url_scheme" should be set to
>> "https"? Because I suppose most of the time there's only one
>> (client-facing) proxy using https.
>
> Maybe this will work...
>
> diff --git a/ext/unicorn_http/global_variables.h
> b/ext/unicorn_http/global_variables.h
> index e593cf6..6705851 100644
> --- a/ext/unicorn_http/global_variables.h
> +++ b/ext/unicorn_http/global_variables.h
> @@ -74,7 +74,6 @@ void init_globals(void)
> DEF_GLOBAL(server_name, "SERVER_NAME");
> DEF_GLOBAL(server_port, "SERVER_PORT");
> DEF_GLOBAL(server_protocol, "SERVER_PROTOCOL");
> - DEF_GLOBAL(http_x_forwarded_proto, "HTTP_X_FORWARDED_PROTO");
> DEF_GLOBAL(port_80, "80");
> DEF_GLOBAL(port_443, "443");
> DEF_GLOBAL(localhost, "localhost");
> diff --git a/ext/unicorn_http/unicorn_http.rl
> b/ext/unicorn_http/unicorn_http.rl
> index 6232e2c..f3945b2 100644
> --- a/ext/unicorn_http/unicorn_http.rl
> +++ b/ext/unicorn_http/unicorn_http.rl
> @@ -197,6 +197,14 @@ static void write_value(VALUE req, struct http_parser
> *hp,
> assert_frozen(f);
> }
>
> + /*
> + * any X-Forwarded-Proto: https means there's an https server in the
> + * proxy chain, and that server is most likely the one that actually
> + * sees the client, so help Rack apps generate URLs with "https"
> + */
> + if (f == g_http_x_forwarded_proto && STR_CSTR_EQ(v, "https"))
> + rb_hash_aset(req, g_rack_url_scheme, v);
> +
> e = rb_hash_aref(req, f);
> if (NIL_P(e)) {
> hp->cont = rb_hash_aset(req, f, v);
> @@ -393,12 +401,7 @@ static void finalize_header(struct http_parser *hp,
> VALUE req)
>
> /* set rack.url_scheme to "https" or "http", no others are allowed by Rack
> */
> if (NIL_P(temp)) {
> - temp = rb_hash_aref(req, g_http_x_forwarded_proto);
> - if (!NIL_P(temp) && STR_CSTR_EQ(temp, "https"))
> - server_port = g_port_443;
> - else
> - temp = g_http;
> - rb_hash_aset(req, g_rack_url_scheme, temp);
> + rb_hash_aset(req, g_rack_url_scheme, g_http);
> } else if (STR_CSTR_EQ(temp, "https")) {
> server_port = g_port_443;
> } else {
> @@ -712,5 +715,6 @@ void Init_unicorn_http(void)
> SET_GLOBAL(g_http_transfer_encoding, "TRANSFER_ENCODING");
> SET_GLOBAL(g_content_length, "CONTENT_LENGTH");
> SET_GLOBAL(g_http_connection, "CONNECTION");
> + SET_GLOBAL(g_http_x_forwarded_proto, "X_FORWARDED_PROTO");
> }
> #undef SET_GLOBAL
> --
> Eric Wong
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