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raspap-webgui/installers/configauth.sh

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#!/bin/bash
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#
# Updates openvpn client.conf with auth credentials,
# adds iptables rules to forward traffic from tun0
# to configured wireless interface
# @author billz
# license: GNU General Public License v3.0
file=$1
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auth=$2
interface=$3
if [ "$auth" = 1 ]; then
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echo "Enabling auth-user-pass in OpenVPN client.conf"
line='auth-user-pass'
if grep -q "$line" $file; then
echo "Updating $line"
sudo sed -i "s/$line/$line login.conf/g" $file
else
echo "Adding $line"
sudo sed -i "$ a $line login.conf" $file
fi
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fi
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# Generate iptables entries to place into rc.local file.
# #RASPAP is for uninstall script
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echo "Checking iptables rules for $interface"
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lines=(
"iptables -t nat -A POSTROUTING -o tun0 -j MASQUERADE #RASPAP"
"iptables -A FORWARD -i tun0 -o $interface -m state --state RELATED,ESTABLISHED -j ACCEPT #RASPAP"
"iptables -A FORWARD -i wlan0 -o tun0 -j ACCEPT #RASPAP"
)
for line in "${lines[@]}"; do
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if grep "$line" /etc/rc.local > /dev/null; then
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echo "$line: Line already added"
else
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sudo sed -i "s/^exit 0$/$line\nexit 0/" /etc/rc.local
echo "Adding rule: $line"
fi
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done
# Force a reload of new settings in /etc/rc.local
sudo systemctl restart rc-local.service
sudo systemctl daemon-reload