Current global host and port of the HTTP server. This is the
basis to form absolute address, which we need for redirection
based interaction such as the OpenID protocol. Options are:
- global(+Bool)
- If
true (default false), try to replace a local hostname
by a world-wide accessible name.
This predicate performs the following steps to find the host and
port:
- Use the settings
http:public_host and http:public_port
- Use
X-Forwarded-Host header, which applies if this server
runs behind a proxy.
- Use the
Host header, which applies for HTTP 1.1 if we are
contacted directly.
- Use gethostname/1 to find the host and
http_current_server/2 to find the port.
- Arguments:
-
| Request | - is the current request. If it is left unbound,
and the request is needed, it is obtained with
http_current_request/1. |
