#!/usr/bin/env bash set -euo pipefail if [ $# -eq 0 ]; then echo "Please supply one file" $(exit 1); echo "$?" elif [ $# -ge 2 ]; then echo "Please only give one argument" $(exit 1); echo "$?" fi cd "$HOME" file="$1" parent="$(dirname "$file")" extract="${parent}/vpnconfigs" patched="${file%.*}-patched.zip" cd "$parent" mkdir -p "${parent}/vpnconfigs" unzip "$file" -d "$extract" readarray -d '' conffiles < <(find "$extract" -name "*\.conf" -print0) for file in "${conffiles[@]}"; do if grep "PostUp" "$file" &>/dev/null; then echo "Skipping $file" else echo "Patching $file" # NOTE route while being connected into my lan awk 'NR==5{print "PostUp = ip route add 192.168.1.0/24 via 172.16.52.1 metric 10"}NR==5{print "PreDown = ip route del 192.168.1.0/24"}1' "$file" > "${file}.tmp" mv "${file}.tmp" "$file" # NOTE only one PreDown line is required as we are using a specific table for this # TODO tables do not work as intended #awk 'NR==5{print "PostUp = ip route add 192.168.1.0/24 via 192.168.86.1 metric 10 table 7"}NR==5{print "PreDown = ip route flush table 7"}1' "$file" > "${file}.tmp" # NOTE adds a dns to all configs awk 'NR==4{print "DNS = 172.16.52.5"}1' "$file" > "${file}.tmp" mv "${file}.tmp" "$file" # NOTE adds a dns to all configs awk 'NR==5{print "DNS = 172.16.16.1"}1' "$file" > "${file}.tmp" mv "${file}.tmp" "$file" # wifi #awk 'NR==6{print "PostUp = ip route add 192.168.1.0/24 via 172.16.52.1 metric 20 table 7"}1' "$file" > "${file}.tmp" #mv "${file}.tmp" "$file" fi done zip -r -9 "$patched" "vpnconfigs" rm -rf "$extract"