proxy.conf.template

map $http_x_forwarded_proto $real_scheme {
	default	$http_x_forwarded_proto;
	''		$scheme;
}

map $http_x_forwarded_prefix $real_path {
	default	$http_x_forwarded_prefix;
	''		'';
}

map $http_x_forwarded_port $real_port {
	default	":$http_x_forwarded_port";
	80		"";
	443		"";
	''		"";
}

server {
	listen 80;
	server_name _;

	resolver ${DNS_RESOLVER} valid=90s;

	# this forces re-resolution of the dns name
	set $backend "https://${WUNDER_BACKEND_HOST}/rest/gbfs$request_uri";

	location / {
		proxy_pass $backend;
		proxy_set_header Authorization "Bearer ${WUNDER_API_TOKEN}";
		proxy_set_header Cookie "";
		proxy_set_header X-Forwarded-Proto "";
		proxy_set_header X-Forwarded-Host "";
		proxy_set_header X-Forwarded-Port "";
		proxy_set_header X-Forwarded-Prefix "";
		proxy_hide_header Set-Cookie;
		sub_filter_types text/json application/json;
		sub_filter "https://${WUNDER_BACKEND_HOST}/rest/gbfs" "$real_scheme://$host$real_port$real_path";
		sub_filter_once off;
	}

	location = / {
		return 301 "$real_scheme://$host$real_port$real_path/gbfs.json";
	}
}