Files
hassio-addons/qbittorrent/rootfs/etc/cont-init.d/93-openvpn.sh

125 lines
5.2 KiB
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Executable File

#!/usr/bin/with-contenv bashio
# shellcheck shell=bash
set -e
OPENVPN_STATE_DIR="/var/run/openvpn"
QBT_CONFIG_FILE="/config/qBittorrent/qBittorrent.conf"
declare openvpn_config=""
declare openvpn_runtime_config=""
declare interface_name=""
declare openvpn_username
declare openvpn_password
if bashio::fs.directory_exists "${OPENVPN_STATE_DIR}"; then
bashio::log.warning "Previous OpenVPN state directory found, cleaning up."
rm -Rf "${OPENVPN_STATE_DIR}"
fi
if ! bashio::config.true 'openvpn_enabled'; then
bashio::exit.ok 'OpenVPN is disabled.'
elif bashio::config.true 'wireguard_enabled'; then
bashio::log.fatal 'OpenVPN and WireGuard cannot be enabled simultaneously. Disable one of them.'
bashio::addon.stop
fi
mkdir -p "${OPENVPN_STATE_DIR}"
bashio::log.info "----------------------------"
bashio::log.info "Openvpn enabled, configuring"
bashio::log.info "----------------------------"
# Set credentials
if bashio::config.has_value "openvpn_username"; then
openvpn_username=$(bashio::config 'openvpn_username')
else
bashio::log.fatal "Openvpn is enabled, but openvpn_username option is empty! Exiting"
bashio::addon.stop
fi
if bashio::config.has_value "openvpn_password"; then
openvpn_password=$(bashio::config 'openvpn_password')
else
bashio::log.fatal "Openvpn is enabled, but openvpn_password option is empty! Exiting"
bashio::addon.stop
fi
echo -e "${openvpn_username}\n${openvpn_password}" > "${OPENVPN_STATE_DIR}/credentials.conf"
chmod 600 "${OPENVPN_STATE_DIR}/credentials.conf"
if bashio::config.has_value "openvpn_config"; then
openvpn_config="$(bashio::config 'openvpn_config')"
openvpn_config="${openvpn_config##*/}"
if [[ ! "${openvpn_config}" =~ ^[A-Za-z0-9._-]+\.(conf|ovpn)$ ]]; then
bashio::log.fatal "Invalid openvpn_config filename '${openvpn_config}'. Allowed characters: letters, numbers, dot, underscore, dash. Extension must be .conf or .ovpn."
bashio::addon.stop
fi
fi
if [[ -z "${openvpn_config}" ]]; then
bashio::log.info 'openvpn_config option left empty. Attempting automatic selection.'
mapfile -t configs < <(find /config/openvpn -maxdepth 1 \( -type f -name '*.conf' -o -name '*.ovpn' \) -print)
if [ "${#configs[@]}" -eq 0 ]; then
bashio::log.fatal 'OpenVPN is enabled but no .conf or .ovpn file was found in /config/openvpn.'
bashio::addon.stop
elif [ "${#configs[@]}" -eq 1 ]; then
openvpn_config="${configs[0]}"
bashio::log.info "OpenVPN configuration not specified. Using ${openvpn_config##*/}."
elif bashio::fs.file_exists '/config/openvpn/config.conf'; then
openvpn_config='/config/openvpn/config.conf'
bashio::log.info 'Using default OpenVPN configuration config.conf.'
else
bashio::log.fatal "Multiple OpenVPN configuration files detected. Please set the 'openvpn_config' option."
bashio::addon.stop
fi
elif bashio::fs.file_exists "/config/openvpn/${openvpn_config}"; then
openvpn_config="/config/openvpn/${openvpn_config}"
else
bashio::log.fatal "OpenVPN configuration '/config/openvpn/${openvpn_config}' not found."
bashio::addon.stop
fi
interface_name="$(sed -n "/^dev tun/p" "${openvpn_config}" | awk -F' ' '{print $2}')"
if [[ -z "${interface_name}" ]]; then
bashio::log.fatal "OpenVPN configuration '${openvpn_config}' misses device directive."
bashio::addon.stop
elif [[ ${interface_name} = "tun" ]]; then
interface_name='tun0'
elif [[ ${interface_name} = "tap" ]]; then
interface_name='tap0'
fi
openvpn_runtime_config="${OPENVPN_STATE_DIR}/${interface_name}.conf"
cp "${openvpn_config}" "${openvpn_runtime_config}"
chmod 600 "${openvpn_runtime_config}"
dos2unix "${openvpn_runtime_config}" >/dev/null 2>&1 || true
sed -i '/^[[:space:]]*[;#]/d' "${openvpn_runtime_config}"
sed -i 's/#.*//' "${openvpn_runtime_config}"
sed -i '/^[[:space:]]*$/d' "${openvpn_runtime_config}"
sed -i '/^[[:blank:]]*$/d' "${openvpn_runtime_config}"
sed -i '/^up/d' "${openvpn_runtime_config}"
sed -i '/^down/d' "${openvpn_runtime_config}"
sed -i '/^route/d' "${openvpn_runtime_config}"
sed -i '/^auth-user-pass /d' "${openvpn_runtime_config}"
sed -i '/^cd /d' "${openvpn_runtime_config}"
sed -i '/^chroot /d' "${openvpn_runtime_config}"
sed -i '$q' "${openvpn_runtime_config}"
bashio::log.info 'Prepared OpenVPN runtime configuration for initial connection attempt.'
echo "${openvpn_runtime_config}" > "${OPENVPN_STATE_DIR}/config"
echo "${interface_name}" > "${OPENVPN_STATE_DIR}/interface"
bashio::log.info "Using interface binding in the qBittorrent app"
if bashio::fs.file_exists "${QBT_CONFIG_FILE}"; then
sed -i '/Interface/d' "${QBT_CONFIG_FILE}"
sed -i "/\\[Preferences\\]/ i\\Connection\\\\Interface=${interface_name}" "${QBT_CONFIG_FILE}"
sed -i "/\\[Preferences\\]/ i\\Connection\\\\InterfaceName=${interface_name}" "${QBT_CONFIG_FILE}"
sed -i "/\\[BitTorrent\\]/a \\Session\\\\Interface=${interface_name}" "${QBT_CONFIG_FILE}"
sed -i "/\\[BitTorrent\\]/a \\Session\\\\InterfaceName=${interface_name}" "${QBT_CONFIG_FILE}"
else
bashio::log.warning "qBittorrent config file not found. Bind the client manually to interface ${interface_name}."
fi
bashio::log.info "OpenVPN prepared with interface ${interface_name} using configuration ${openvpn_config##*/}."