121 lines
2.2 KiB
121 lines
2.2 KiB
#!/bin/sh
|
|
|
|
##
|
|
## === gprsh ===
|
|
##
|
|
## gprsh is a simple gopher server in a POSIX shell script:
|
|
##
|
|
## $ ./gprsh [<PORT> [<GOPHERDIR>]
|
|
##
|
|
## If PORT is not specified, the default is 70. If GOPHERDIR is not
|
|
## specified, "./" is assumed
|
|
##
|
|
##
|
|
## (c) 2018 Vincenzo 'KatolaZ' Nicosia <katolaz@freaknet.org>
|
|
##
|
|
##
|
|
|
|
######################
|
|
|
|
##
|
|
## If the script is called with basename "gprsh", launch the netcat
|
|
## server...
|
|
##
|
|
|
|
MYNAME=$(basename $0)
|
|
|
|
if [ -z "${MYNAME#gprsh}" ]; then
|
|
## we are called as gprsh -- launch the server
|
|
|
|
PORT=${1:-70}
|
|
GOPHERDIR=${2:-"./"}
|
|
|
|
while [ 1 -eq 1 ]; do
|
|
netcat -vv -k -l -p ${PORT} -c "./gprsh_serve ${GOPHERDIR}"
|
|
ret=$?
|
|
done
|
|
exit 0
|
|
fi
|
|
|
|
|
|
######################
|
|
|
|
##
|
|
## ...otherwise, serve a request
|
|
##
|
|
|
|
|
|
## function
|
|
invalid_selector(){
|
|
sel="$1"
|
|
echo "iInvalid selector: \"$sel\""
|
|
echo "."
|
|
exit 1
|
|
}
|
|
|
|
## function
|
|
serve_selector(){
|
|
sel="$1"
|
|
|
|
cat "${sel}"
|
|
echo "."
|
|
exit 0
|
|
}
|
|
|
|
|
|
### transform a .gph file into a gophermap
|
|
## function
|
|
serve_index(){
|
|
IDX=$1
|
|
IFS='
|
|
'
|
|
while read line; do
|
|
rline=$(echo $line | sed -r -e 's/\r//g')
|
|
case $rline in
|
|
'['*)
|
|
echo $rline | sed -r -e 's/\[//g;s/\]//g;s/\|/\t/g;s/\t//;s/$/\r/g'
|
|
;;
|
|
*)
|
|
echo $line
|
|
esac
|
|
done < $IDX
|
|
exit 0
|
|
}
|
|
|
|
|
|
|
|
GOPHERDIR=${1:-"./"}
|
|
|
|
read selector
|
|
|
|
selector=$(echo $selector | sed -r 's:\r::g' )
|
|
|
|
echo "iGOPHERDIR: ${GOPHERDIR}"
|
|
echo "iselector: \"${selector}\""
|
|
|
|
case $selector in
|
|
/*|"")
|
|
RP1=$(realpath "${GOPHERDIR}"/"${selector}" || "")
|
|
RP2=$(realpath "${GOPHERDIR}")"${selector}"
|
|
echo "iRP1: ${RP1}"
|
|
echo "iRP2: ${RP2}"
|
|
#echo "."
|
|
|
|
if [ "${RP1}" = "${RP2}" ]; then
|
|
if [ -f "${RP1}" ]; then
|
|
serve_selector "${RP1}"
|
|
elif [ -d "${RP1}" ]; then
|
|
[ -f "${RP1}/gophermap" ] && serve_selector "${RP1}/gophermap"
|
|
[ -f "${RP1}/index.gph" ] && serve_index "${RP1}/index.gph"
|
|
else
|
|
echo "3Err Unable to find file ${selector}"
|
|
fi
|
|
fi
|
|
invalid_selector "$selector"
|
|
;;
|
|
*)
|
|
[ -f "${GOPHERDIR}/gophermap" ] && cat "${GOPHERDIR}/gophermap" && echo "." && exit 0
|
|
invalid_selector "/"
|
|
;;
|
|
esac
|
|
|
|
|