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- #!/bin/bash
- VPN_PROVIDER="${OPENVPN_PROVIDER,,}"
- VPN_PROVIDER_CONFIGS="/etc/openvpn/${VPN_PROVIDER}"
- if [[ ! -d "${VPN_PROVIDER_CONFIGS}" ]]; then
- echo "Could not find OpenVPN provider: ${OPENVPN_PROVIDER}"
- echo "Please check your settings."
- exit 1
- fi
-
- echo "Using OpenVPN provider: ${OPENVPN_PROVIDER}"
-
- if [[ ! -z "${OPENVPN_CONFIG}" ]]; then
- n=$(echo "$OPENVPN_CONFIG" | wc -w)
- if [ $n -gt 1 ]
- then
- rnd=$((RANDOM%n+1))
- srv=$(echo "$OPENVPN_CONFIG" | awk -vrnd=$rnd '{print $rnd}')
- echo "$n servers found in OPENVPN_CONFIG, $srv chosen randomly"
- OPENVPN_CONFIG=$srv
- fi
-
- if [[ -f "${VPN_PROVIDER_CONFIGS}/${OPENVPN_CONFIG}".ovpn ]]; then
- echo "Starting OpenVPN using config ${OPENVPN_CONFIG}.ovpn"
- OPENVPN_CONFIG="${VPN_PROVIDER_CONFIGS}/${OPENVPN_CONFIG}.ovpn"
- else
- echo "Supplied config ${OPENVPN_CONFIG}.ovpn could not be found."
- echo "Using default OpenVPN gateway for provider ${VPN_PROVIDER}"
- OPENVPN_CONFIG="${VPN_PROVIDER_CONFIGS}/default.ovpn"
- fi
- else
- echo "No VPN configuration provided. Using default."
- OPENVPN_CONFIG="${VPN_PROVIDER_CONFIGS}/default.ovpn"
- fi
-
- # add OpenVPN user/pass
- if [[ "${OPENVPN_USERNAME}" == "**None**" ]] || [[ "${OPENVPN_PASSWORD}" == "**None**" ]] ; then
- if [[ ! -f /config/openvpn-credentials.txt ]] ; then
- echo "OpenVPN credentials not set. Exiting."
- exit 1
- fi
- echo "Found existing OPENVPN credentials..."
- else
- echo "Setting OPENVPN credentials..."
- mkdir -p /config
- echo "${OPENVPN_USERNAME}" > /config/openvpn-credentials.txt
- echo "${OPENVPN_PASSWORD}" >> /config/openvpn-credentials.txt
- chmod 600 /config/openvpn-credentials.txt
- fi
-
- # add transmission credentials from env vars
- echo "${TRANSMISSION_RPC_USERNAME}" > /config/transmission-credentials.txt
- echo "${TRANSMISSION_RPC_PASSWORD}" >> /config/transmission-credentials.txt
-
- # Persist transmission settings for use by transmission-daemon
- dockerize -template /etc/transmission/environment-variables.tmpl:/etc/transmission/environment-variables.sh
-
- TRANSMISSION_CONTROL_OPTS="--script-security 2 --up-delay --up /etc/openvpn/tunnelUp.sh --down /etc/openvpn/tunnelDown.sh"
-
- ## If we use UFW or the LOCAL_NETWORK we need to grab network config info
- if [[ "${ENABLE_UFW,,}" == "true" ]] || [[ -n "${LOCAL_NETWORK-}" ]]; then
- eval $(/sbin/ip r l m 0.0.0.0 | awk '{if($5!="tun0"){print "GW="$3"\nINT="$5; exit}}')
- ## IF we use UFW_ALLOW_GW_NET along with ENABLE_UFW we need to know what our netmask CIDR is
- if [[ "${ENABLE_UFW,,}" == "true" ]] && [[ "${UFW_ALLOW_GW_NET,,}" == "true" ]]; then
- eval $(ip r l dev ${INT} | awk '{if($5=="link"){print "GW_CIDR="$1; exit}}')
- fi
- fi
-
- ## Open port to any address
- function ufwAllowPort {
- typeset -n portNum=${1}
- if [[ "${ENABLE_UFW,,}" == "true" ]] && [[ -n "${portNum-}" ]]; then
- echo "allowing ${portNum} through the firewall"
- ufw allow ${portNum}
- fi
- }
-
- ## Open port to specific address.
- function ufwAllowPortLong {
- typeset -n portNum=${1} sourceAddress=${2}
-
- if [[ "${ENABLE_UFW,,}" == "true" ]] && [[ -n "${portNum-}" ]] && [[ -n "${sourceAddress-}" ]]; then
- echo "allowing ${sourceAddress} through the firewall to port ${portNum}"
- ufw allow from ${sourceAddress} to any port ${portNum}
- fi
- }
-
- if [[ "${ENABLE_UFW,,}" == "true" ]]; then
- # Enable firewall
- echo "enabling firewall"
- sed -i -e s/IPV6=yes/IPV6=no/ /etc/default/ufw
- ufw enable
-
- if [[ "${TRANSMISSION_PEER_PORT_RANDOM_ON_START,,}" == "true" ]]; then
- PEER_PORT="${TRANSMISSION_PEER_PORT_RANDOM_LOW}:${TRANSMISSION_PEER_PORT_RANDOM_HIGH}"
- else
- PEER_PORT="${TRANSMISSION_PEER_PORT}"
- fi
-
- ufwAllowPort PEER_PORT
-
- if [[ "${WEBPROXY_ENABLED,,}" == "true" ]]; then
- ufwAllowPort WEBPROXY_PORT
- fi
- if [[ "${UFW_ALLOW_GW_NET,,}" == "true" ]]; then
- ufwAllowPortLong TRANSMISSION_RPC_PORT GW_CIDR
- else
- ufwAllowPortLong TRANSMISSION_RPC_PORT GW
- fi
-
- if [[ -n "${UFW_EXTRA_PORTS-}" ]]; then
- for port in ${UFW_EXTRA_PORTS//,/ }; do
- if [[ "${UFW_ALLOW_GW_NET,,}" == "true" ]]; then
- ufwAllowPortLong port GW_CIDR
- else
- ufwAllowPortLong port GW
- fi
- done
- fi
- fi
-
- if [[ -n "${LOCAL_NETWORK-}" ]]; then
- if [[ -n "${GW-}" ]] && [[ -n "${INT-}" ]]; then
- for localNet in ${LOCAL_NETWORK//,/ }; do
- echo "adding route to local network ${localNet} via ${GW} dev ${INT}"
- /sbin/ip r a "${localNet}" via "${GW}" dev "${INT}"
- if [[ "${ENABLE_UFW,,}" == "true" ]]; then
- ufwAllowPortLong TRANSMISSION_RPC_PORT localNet
- if [[ -n "${UFW_EXTRA_PORTS-}" ]]; then
- for port in ${UFW_EXTRA_PORTS//,/ }; do
- ufwAllowPortLong port localNet
- done
- fi
- fi
- done
- fi
- fi
-
- exec openvpn ${TRANSMISSION_CONTROL_OPTS} ${OPENVPN_OPTS} --config "${OPENVPN_CONFIG}"
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