1 #! /bin/sh 2 ## web relay -- a degenerate version of webproxy, usable with browsers that 3 ## don't understand proxies. This just forwards connections to a given server. 4 ## No query logging, no access control [although you can add it to XNC for 5 ## your own run], and full-URL links will undoubtedly confuse the browser 6 ## if it can't reach the server directly. This was actually written before 7 ## the full proxy was, and it shows. 8 ## The arguments in this case are the destination server and optional port. 9 ## Please flame pinheads who use self-referential absolute links. 10 11 # set these as you wish: proxy port... 12 PORT=8000 13 # any extra args to the listening "nc", for instance "-s inside-net-addr" 14 XNC='' 15 16 # functionality switch, which has to be done fast to start the next listener 17 case "${1}${RDEST}" in 18 "") 19 echo needs hostname 20 exit 1 21 ;; 22 esac 23 24 case "${1}" in 25 "") 26 # no args: fire off new relayer process NOW. Will hang around for 10 minutes 27 nc -w 600 -l -n -p $PORT -e "$0" $XNC < /dev/null > /dev/null 2>&1 & 28 # and handle this request, which will simply fail if vars not set yet. 29 exec nc -w 15 $RDEST $RPORT 30 ;; 31 esac 32 33 # Fall here for setup; this can now be slower. 34 RDEST="$1" 35 RPORT="$2" 36 test "$RPORT" || RPORT=80 37 export RDEST RPORT 38 39 # Launch the first relayer same as above, but let its error msgs show up 40 # will hang around for a minute, and exit if no new connections arrive. 41 nc -v -w 600 -l -p $PORT -e "$0" $XNC < /dev/null > /dev/null & 42 echo \ 43 "Relay to ${RDEST}:${RPORT} running -- point your browser here on port $PORT" 44 exit 0 45
