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#!/usr/bin/env sh
CONFIGFILE="config.json"
CONFIGDIR="${XDG_DATA_HOME:-"$HOME/.config"}/phantomsocks"
getInterfaces() {
family=$1
i=0 && while true; do
interfaces=$(ip -j -"$family" r | jq -r '.[]|select(.dst=="default").dev')
if [ -n "$interfaces" ]; then
echo "$interfaces"
break
fi
if [ "$i" -ge 5 ]; then
echo "!!! no v$family ifaces" 1>&2
return 1
else
i=$((i + 1))
printf '.' 1>&2
sleep 2
fi
done && i=0
}
getInterface() {
family=$1
address=:: && [ "$family" = 4 ] && address=1
i=0 && while true; do
interface=$(ip -j -"$family" r g $address | jq -r '.[].dev')
if [ -n "$interface" ]; then
echo "$interface"
break
fi
if [ "$i" -ge 5 ]; then
echo "!!! no v$family iface" 1>&2
return 2
else
i=$((i + 1))
printf '.' 1>&2
sleep 2
fi
done && i=0
}
if [ "$(id -u)" = "0" ]; then
echo "Please do not run this script as root!"
exit 1
fi
if [ ! -d "$CONFIGDIR" ] || [ ! -e "$CONFIGDIR/$CONFIGFILE" ]; then
mkdir -p "$CONFIGDIR" && \
cp -rn /usr/share/phantomsocks/*.* "$CONFIGDIR"
fi
cd "$CONFIGDIR" || exit 1
ifs_v6="$(getInterfaces 6)"; NO_IPV6=$?
ifs_v4="$(getInterfaces 4)"; NO_IPV4=$?
if [ $NO_IPV6 = 1 ] && [ $NO_IPV4 = 1 ]; then
echo !!! no network connection
exit 1
elif [ $NO_IPV6 = 1 ]; then
defaIf_v4="$(getInterface 4)" || exit $?
defaIf_v6=$defaIf_v4
ifs_v6=$ifs_v4
elif [ $NO_IPV4 = 1 ]; then
defaIf_v6="$(getInterface 6)" || exit $?
defaIf_v4=$defaIf_v6
ifs_v4=$ifs_v6
else
defaIf_v6="$(getInterface 6)" || exit $?
defaIf_v4="$(getInterface 4)" || exit $?
fi
modifiedConf=$(jq -j \
--arg ifs_v6 "$ifs_v6" \
--arg ifs_v4 "$ifs_v4" \
--arg defaIf_v6 "$defaIf_v6" \
--arg defaIf_v4 "$defaIf_v4" '
def setPface(fam; dev):
if (fam == 4) then
if (dev | inside($ifs_v4) | not) or (dev == "") then
dev = $defaIf_v4
end
elif (fam == 6) then
if (dev | inside($ifs_v6) | not) or (dev == "") then
dev = $defaIf_v6
end
end ;
def validatePface(dev; hint):
if (dev != null) then
if (hint != null) then
if (hint | contains("ipv6")) and (hint | contains("ipv4")) then
setPface(4; dev)
elif (hint | contains("ipv6")) then
setPface(6; dev)
elif (hint | contains("ipv4")) then
setPface(4; dev)
else
setPface(6; dev)
end
else
setPface(4; dev)
end
end ;
.services[] |= validatePface(.device; .hint) |
.interfaces[] |= validatePface(.device; .hint)
' "$CONFIGDIR/$CONFIGFILE") && echo "$modifiedConf" > "$CONFIGDIR/$CONFIGFILE"
# workaround for rawsocks
if (strings /usr/bin/phantomsocks | grep -e '-tags=rawsocket' > /dev/null 2>&1); then
sleep 2
fi
exec phantomsocks "$@"
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