proxy-addr.node.txt

                                  ┏━━━━━━━━━━━━━━━━┓
                                  ┃   PROXY-ADDR   ┃
                                  ┗━━━━━━━━━━━━━━━━┛

VERSION ==>                       #2.0.7

PROXY-ADDR.all                    #Returns all trusted 'ADDR' + first untrusted, in proxy chain
 (REQ, FUNC('ADDR', NUM)->BOOL)   #Proxy chain is X-Forwarded-For [C] + REQ remoteAddress (using FORWARDED, see its doc)
 ->'ADDR'_ARR                     #Trusted:
                                  #  - means reverse proxies under our control (i.e. HTTP header cannot be forged)
                                  #  - BOOL: true if trusted
                                  #  - NUM: number of proxies between origin + 1
                                  #ARR is from closest to least close to server

PROXY-ADDR(...)->'ADDR'           #Same as all().at(-1), i.e. furthest to origin only (first untrusted)

PROXY-ADDR.compile('ADDR2'[_ARR]) #Transforms 'ADDR2'[_ARR] into FUNC, where 'ADDR2' can be:
 ->FUNC('ADDR', NUM)->BOOL        #  - IPv4|v6
                                  #  - CIDR
                                  #  - netmask
                                  #  - 'loopback' (like '127.0.0.1/8', '::1/128')
                                  #  - 'linklocal' (like '169.254.0.1/16', 'fe80::/10')
                                  #  - 'uniquelocal' (like '192.168.0.1/16', '10.0.0.0/8' or '172.16.0.0/12', 'fc00::/7')
PROXY-ADDR[.all]
 (..., 'ADDR2'[_ARR])             #Same but using 'ADDR2', with last logic as compile()