id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	uname	nginx_version
1428	Expose the proxy protocol port in a variable	Congelli501@…		"The proxy protocol port provides the port used by the user to contact the proxy protocol proxy.

For example, in this proxy protocol header, the end user contacted the TCP proxy on port 1234:

PROXY TCP4 192.168.0.1 192.168.0.11 56324 1234\r\n
GET / HTTP/1.1\r\n
Host: 192.168.0.11\r\n
\r\n


Right now, nginx doesn't parse the this port, according to the code (https://github.com/nginx/nginx/blob/f8a9d528df92c7634088e575e5c3d63a1d4ab8ea/src/core/ngx_proxy_protocol.c#L99). Only the user port is parsed and exposed through proxy_protocol_port.

It would be a nice feature to expose this port, to forward it to the upstream app and rebuild the correct public URL dynamically."	enhancement	closed	minor		nginx-core	1.13.x	duplicate	proxyprotocol		Linux node1 4.4.0-96-generic #119-Ubuntu SMP Tue Sep 12 14:59:54 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux	"nginx version: nginx/1.13.5
built by gcc 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 
built with OpenSSL 1.0.2g  1 Mar 2016
TLS SNI support enabled
configure arguments: --prefix=/usr/share/nginx --conf-path=/etc/nginx/nginx.conf --http-log-path=/var/log/nginx/access.log --error-log-path=/var/log/nginx/error.log --lock-path=/var/lock/nginx.lock --pid-path=/run/nginx.pid --http-client-body-temp-path=/var/lib/nginx/body --http-fastcgi-temp-path=/var/lib/nginx/fastcgi --http-proxy-temp-path=/var/lib/nginx/proxy --http-scgi-temp-path=/var/lib/nginx/scgi --http-uwsgi-temp-path=/var/lib/nginx/uwsgi --with-debug --with-pcre-jit --with-http_ssl_module --with-http_stub_status_module --with-http_realip_module --with-http_auth_request_module --with-http_addition_module --with-http_dav_module --with-http_geoip_module --with-http_gzip_static_module --with-http_sub_module --with-http_v2_module --with-http_v2_hpack_enc --with-stream --with-stream_ssl_module --with-stream_ssl_preread_module --with-threads --with-file-aio --without-mail_pop3_module --without-mail_smtp_module --without-mail_imap_module --without-http_uwsgi_module --without-http_scgi_module --with-cc-opt='-g -O3 -flto -fPIE -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 --param=ssp-buffer-size=4 -DTCP_FASTOPEN=23 -Wno-error=strict-aliasing -m64 -mtune=generic' --with-ld-opt='-Wl,-Bsymbolic-functions -fPIE -pie -Wl,-z,relro -Wl,-z,now' --add-module=/tmp/build/ngx_devel_kit-0.3.0 --add-module=/tmp/build/set-misc-nginx-module-0.31 --add-module=/tmp/build/nginx-module-vts-0.1.15 --add-module=/tmp/build/headers-more-nginx-module-0.32 --add-module=/tmp/build/nginx-goodies-nginx-sticky-module-ng-08a395c66e42 --add-module=/tmp/build/nginx-http-auth-digest-7955af9c77598c697ac292811914ce1e2b3b824c --add-module=/tmp/build/ngx_http_substitutions_filter_module-bc58cb11844bc42735bbaef7085ea86ace46d05b --add-module=/tmp/build/nginx-opentracing-fcc2e822c6dfc7d1f432c16b07dee9437c24236a"