docker-gophernicus/init.sh

#!/bin/sh

SERVER_ARGS=""

# Defaults
PORT=${PORT:-70}
LOG_FILE=${LOG_FILE:-/var/log/gophernicus.log}
GOPHER_ROOT=${GOPHER_ROOT:-/var/gopher}

# Arguments
if [ ${PORT} ]; then
	SERVER_ARGS="${SERVER_ARGS} -p ${PORT}"
fi

if [ ${TLS_PORT} ]; then
	SERVER_ARGS="${SERVER_ARGS} -T ${TLS_PORT}"
fi

if [ ${GOPHER_ROOT} ]; then
	SERVER_ARGS="${SERVER_ARGS} -r ${GOPHER_ROOT}"
fi

if [ ${DEFAULT_FILE_TYPE} ]; then
	SERVER_ARGS="${SERVER_ARGS} -t ${DEFAULT_FILE_TYPE}"
fi

if [ ${GOPHER_MAPFILE} ]; then
	SERVER_ARGS="${SERVER_ARGS} -g ${GOPHER_MAPFILE}"
fi

if [ ${GOPHER_TAGFILE} ]; then
	SERVER_ARGS="${SERVER_ARGS} -a ${GOPHER_TAGFILE}"
fi

if [ ${CGI_DIR} ]; then
	SERVER_ARGS="${SERVER_ARGS} -c ${CGI_DIR}"
fi

if [ ${USER_DIR} ]; then
	SERVER_ARGS="${SERVER_ARGS} -u ${USER_DIR}"
fi

if [ ${LOG_FILE} ]; then
	SERVER_ARGS="${SERVER_ARGS} -l ${LOG_FILE}"
	mkdir -p "$(dirname ${LOG_FILE})"
	touch "${LOG_FILE}"
	chown nobody.nobody "${LOG_FILE}"
fi

if [ ${DEFAULT_WIDTH} ]; then
	SERVER_ARGS="${SERVER_ARGS} -w ${DEFAULT_WIDTH}"
fi

if [ ${DEFAULT_CHARSET} ]; then
	SERVER_ARGS="${SERVER_ARGS} -o ${DEFAULT_CHARSET}"
fi

if [ ${SESSION_TIMEOUT} ]; then
	SERVER_ARGS="${SERVER_ARGS} -s ${SESSION_TIMEOUT}"
fi

if [ ${MAX_HITS} ]; then
	SERVER_ARGS="${SERVER_ARGS} -i ${MAX_HITS}"
fi

if [ ${MAX_TRANSFER_KB} ]; then
	SERVER_ARGS="${SERVER_ARGS} -k ${MAX_TRANSFER_KB}"
fi

if [ ${FILTER_DIR} ]; then
	SERVER_ARGS="${SERVER_ARGS} -f ${FILTER_DIR}"
fi

# Booleans
if [ ${DISABLE_VHOSTS} ]; then
	SERVER_ARGS="${SERVER_ARGS} -nv"
fi

if [ ${DISABLE_PARENT_DIR_LINKS} ]; then
	SERVER_ARGS="${SERVER_ARGS} -nl"
fi

if [ ${DISABLE_HEADER} ]; then
	SERVER_ARGS="${SERVER_ARGS} -nh"
fi

if [ ${DISABLE_FOOTER} ]; then
	SERVER_ARGS="${SERVER_ARGS} -nf"
fi

if [ ${DISABLE_MENU_METADATA} ]; then
	SERVER_ARGS="${SERVER_ARGS} -nd"
fi

if [ ${DISABLE_CONTENT_DETECTION} ]; then
	SERVER_ARGS="${SERVER_ARGS} -nc"
fi

if [ ${DISABLE_CHARSET_CONV} ]; then
	SERVER_ARGS="${SERVER_ARGS} -no"
fi

if [ ${DISABLE_QUERY_STRINGS} ]; then
	SERVER_ARGS="${SERVER_ARGS} -nq"
fi

if [ ${DISABLE_SYSLOG} ]; then
	SERVER_ARGS="${SERVER_ARGS} -ns"
fi

if [ ${DISABLE_AUTOGEN_CAPS} ]; then
	SERVER_ARGS="${SERVER_ARGS} -na"
fi

if [ ${DISABLE_SERVER_STATUS} ]; then
	SERVER_ARGS="${SERVER_ARGS} -nt"
fi

if [ ${DISABLE_HAPROXY} ]; then
	SERVER_ARGS="${SERVER_ARGS} -np"
fi

if [ ${DISABLE_EXECUTABLES} ]; then
	SERVER_ARGS="${SERVER_ARGS} -nx"
fi

if [ ${DISABLE_USERDIRS} ]; then
	SERVER_ARGS="${SERVER_ARGS} -nu"
fi

# Write out our gophernicus xinetd configuration with all our server arguments
cat << EOF > /etc/xinetd.d/gophernicus
# default: on
# description: Gophernicus - Modern full-featured gopher server
service gopher
{
	socket_type	= stream
	protocol    = tcp
	port        = ${PORT}
	wait		= no
	user		= nobody
	server		= /usr/sbin/gophernicus
	server_args = ${SERVER_ARGS}
	disable		= no
}
EOF

# Kick off xinetd to start serving gophernicus
/usr/sbin/xinetd

# Give us some logs on stdout
tail -f ${LOG_FILE}