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Update update-port.sh #326

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62 changes: 13 additions & 49 deletions openvpn/protonvpn/update-port.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -28,88 +28,52 @@ remote() {
fi
}

# this function borrowed from openvpn/pia/update-port.sh
bind_trans() {
new_port=$pf_port
local transmission_port_check_max_attempts=50
local transmission_port_check_attempts=0
local transmission_port_check_interval=10
#
# Now, set port in Transmission
#
local new_port=$pf_port

# Check if transmission remote is set up with authentication
if test "$(jq -r '.["rpc-authentication-required"]' "$transmission_settings_file")" == "true"; then
echo "transmission auth required"
myauth="$transmission_username:$transmission_passwd"
else
echo "transmission auth not required"
myauth=""
fi

# make sure transmission is running and accepting requests
echo "waiting for transmission to become responsive"
# Ensure transmission is responsive
until test "$(remote --list | jq -r .result)" == "success"; do sleep 10; done
echo "transmission became responsive"

# get current listening port
# Bind port to Transmission
transmission_peer_port=$(remote --session-info | jq -r '.arguments["peer-port"]')
if test "$new_port" -ne "$transmission_peer_port"; then
if test "$ENABLE_UFW" == "true"; then
echo "Update UFW rules before changing port in Transmission"

echo "denying access to $transmission_peer_port"
ufw deny "$transmission_peer_port"

echo "allowing $new_port through the firewall"
ufw allow "$new_port"
fi

echo "setting transmission port to $new_port"
until test "$(remote --port "$new_port" | jq -r .result)" == "success"; do sleep 5; done

echo "Waiting for port..."
until test "$(remote --port-test | jq -r '.arguments["port-is-open"]')" == "true"; do
if test $transmission_port_check_attempts -ge $transmission_port_check_max_attempts; then
echo "Port check attempts exceeded, giving up..."
return 1
else
printf "Attempt %d of %d. Port is not open yet, waiting %d seconds...\n" $(( transmission_port_check_attempts + 1 )) $transmission_port_check_max_attempts $transmission_port_check_interval
((transmission_port_check_attempts++))
sleep $transmission_port_check_interval
fi
done
echo "Port is open!"
else
echo "No action needed, port hasn't changed"
fi
}

if ! which jq; then
echo "jq is not installed."
echo "jq is not installed! jq is required to configure ProtonVPN port forwarding."
echo "port forwarding for ProtonVPN has not been configured."
exit 1
fi

if ! which natpmpc; then
echo "natpmpc is not installed. natpmpc is required to configure ProtonVPN port forwarding."
echo "natpmpc is not installed! natpmpc is required to configure ProtonVPN port forwarding."
echo "port forwarding for ProtonVPN has not been configured."
exit 1
fi

sleep 60
box_out "ProtonVPN Port Forwarding"
last_known_port=""

while true; do
date
pf_port="$(open_port | sed -nr '1,//s/Mapped public port ([0-9]{4,5}) protocol.*/\1/p')"
if test "$pf_port" -gt 1024; then
if bind_trans; then
if [[ "$pf_port" != "$last_known_port" ]]; then
bind_trans
last_known_port="$pf_port"
box_out "The Forwarded Port is: $pf_port"
else
box_out "The Forwarded Port is: Unavailable"
fi
else
box_out "No Port Retuned from natpmpc"
box_out "No valid port returned from natpmpc"
fi

sleep 35
sleep 45
done