safing-portmaster/spn/tools/install.sh

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#!/bin/sh
#
# This script should be run via curl as root:
# sudo sh -c "$(curl -fsSL https://raw.githubusercontent.com/safing/portmaster/master/spn/tools/install-spn.sh)"
# or wget
# sudo sh -c "$(wget -qO- https://raw.githubusercontent.com/safing/portmaster/master/spn/tools/install-spn.sh)"
#
# As an alternative, you can first download the install script and run it afterwards:
# wget https://raw.githubusercontent.com/safing/portmaster/master/spn/tools/install-spn.sh
# sudo sh ./install.sh
#
#
set -e
ARCH=
INSTALLDIR=
PMSTART=
ENABLENOW=
INSTALLSYSTEMD=
SYSTEMDINSTALLPATH=
apply_defaults() {
ARCH=${ARCH:-amd64}
INSTALLDIR=${INSTALLDIR:-/opt/safing/spn}
PMSTART=${PMSTART:-https://updates.safing.io/latest/linux_${ARCH}/start/portmaster-start}
SYSTEMDINSTALLPATH=${SYSTEMDINSTALLPATH:-/etc/systemd/system/spn.service}
if command_exists systemctl; then
INSTALLSYSTEMD=${INSTALLSYSTEMD:-yes}
ENABLENOW=${ENABLENOW:-yes}
else
INSTALLSYSTEMD=${INSTALLSYSTEMD:-no}
ENABLENOW=${ENABLENOW:-no}
fi
# The hostname may be freshly set, ensure the ENV variable is correct.
export HOSTNAME=$(hostname)
}
command_exists() {
command -v "$@" >/dev/null 2>&1
}
setup_tty() {
if [ -t 0 ]; then
interactive=yes
fi
if [ -t 1 ]; then
RED=$(printf '\033[31m')
GREEN=$(printf '\033[32m')
YELLOW=$(printf '\033[33m')
BLUE=$(printf '\033[34m')
BOLD=$(printf '\033[1m')
RESET=$(printf '\033[m')
else
RED=""
GREEN=""
YELLOW=""
BLUE=""
BOLD=""
RESET=""
fi
}
log() {
echo ${GREEN}${BOLD}"-> "${RESET}"$@" >&2
}
error() {
echo ${RED}"Error: $@"${RESET} >&2
}
warn() {
echo ${YELLOW}"warn: $@"${RESET} >&2
}
run_systemctl() {
systemctl $@ >/dev/null 2>&1
}
download_file() {
local src=$1
local dest=$2
if command_exists curl; then
curl --silent --fail --show-error --location --output $dest $src
elif command_exists wget; then
wget --quiet -O $dest $src
else
error "No suitable download command found, either curl or wget must be installed"
exit 1
fi
}
ensure_install_dir() {
log "Creating ${INSTALLDIR}"
mkdir -p ${INSTALLDIR}
}
download_pmstart() {
log "Downloading portmaster-start ..."
local dest="${INSTALLDIR}/portmaster-start"
if [ -f "${dest}" ]; then
warn "Overwriting existing portmaster-start at ${dest}"
fi
download_file ${PMSTART} ${dest}
log "Changing permissions"
chmod a+x ${dest}
}
download_updates() {
log "Downloading updates ..."
${INSTALLDIR}/portmaster-start --data=${INSTALLDIR} update
}
setup_systemd() {
log "Installing systemd service unit ..."
if [ ! "${INSTALLSYSTEMD}" = "yes" ]; then
warn "Skipping setup of systemd service unit"
echo "To launch the hub, execute the following as root:"
echo ""
echo "${INSTALLDIR}/portmaster-start --data ${INSTALLDIR} hub"
echo ""
return
fi
if [ -f "${SYSTEMDINSTALLPATH}" ]; then
warn "Overwriting existing unit path"
fi
cat >${SYSTEMDINSTALLPATH} <<EOT
[Unit]
Description=Safing Privacy Network Hub
Wants=nss-lookup.target
Conflicts=shutdown.target
Before=shutdown.target
[Service]
Type=simple
Restart=on-failure
RestartSec=5
LimitNOFILE=infinity
Environment=LOGLEVEL=warning
Environment=SPN_ARGS=
EnvironmentFile=-/etc/default/spn
ExecStart=${INSTALLDIR}/portmaster-start --data ${INSTALLDIR} hub -- --log \$LOGLEVEL \$SPN_ARGS
[Install]
WantedBy=multi-user.target
EOT
log "Reloading systemd unit files"
run_systemctl daemon-reload
if run_systemctl is-active spn ||
run_systemctl is-failed spn; then
log "Restarting SPN hub"
run_systemctl restart spn.service
fi
# TODO(ppacher): allow disabling enable
if ! run_systemctl is-enabled spn ; then
if [ "${ENABLENOW}" = "yes" ]; then
log "Enabling and starting SPN."
run_systemctl enable --now spn.service || exit 1
log "Watch logs using: journalctl -fu spn.service"
else
log "Enabling SPN"
run_systemctl enable spn.service || exit 1
fi
fi
}
ask_config() {
if [ "${HOSTNAME}" = "" ]; then
log "Please enter hostname:"
read -p "> " HOSTNAME
fi
if [ "${METRICS_COMMENT}" = "" ]; then
log "Please enter metrics comment:"
read -p "> " METRICS_COMMENT
fi
}
write_config_file() {
cat >${1} <<EOT
{
"core": {
"metrics": {
"instance": "$HOSTNAME",
"comment": "$METRICS_COMMENT",
"push": "$PUSHMETRICS"
}
},
"spn": {
"publicHub": {
"name": "$HOSTNAME"
}
}
}
EOT
}
confirm_config() {
log "Installation configuration:"
echo ""
echo " Architecture: ${BOLD}${ARCH}${RESET}"
echo " Download-URL: ${BOLD}${PMSTART}${RESET}"
echo " Target Dir: ${BOLD}${INSTALLDIR}${RESET}"
echo "Install systemd: ${BOLD}${INSTALLSYSTEMD}${RESET}"
echo " Unit path: ${BOLD}${SYSTEMDINSTALLPATH}${RESET}"
echo " Start Now: ${BOLD}${ENABLENOW}${RESET}"
echo ""
echo " Config:"
tmpfile=$(mktemp)
write_config_file $tmpfile
cat $tmpfile
echo ""
echo ""
if [ ! -z "${interactive}" ]
then
read -p "Continue (Y/n)? " ans
case "$ans" in
"" | "y" | "Y")
echo ""
;;
**)
error "User aborted"
exit 1
esac
fi
}
print_help() {
cat <<EOT
Usage: $0 [OPTIONS...]
${BOLD}Options:${RESET}
${GREEN}-y, --unattended${RESET} Don't ask for confirmation.
${GREEN}-n, --no-start${RESET} Do not immediately start SPN hub.
${GREEN}-t, --target PATH${RESET} Configure the installation directory.
${GREEN}-h, --help${RESET} Display this help text
${GREEN}-a, --arch${RESET} Configure the binary architecture.
${GREEN}-u, --url URL${RESET} Set download URL for portmaster start.
${GREEN}-S, --no-systemd${RESET} Do not install systemd service unit.
${GREEN}-s, --service-path PATH${RESET} Location for the systemd unit file.
EOT
}
main() {
setup_tty
# Parse arguments
while [ $# -gt 0 ]
do
case $1 in
--unattended | -y)
interactive=""
;;
--no-start | -n)
ENABLENOW="no"
;;
--target | -t)
INSTALLDIR=$2
shift
;;
--help | -h)
print_help
exit 1 ;;
--arch | -a)
ARCH=$2
shift
;;
--url | -u)
PMSTART=$2
shift
;;
--no-systemd | -S)
INSTALLSYSTEMD=no
ENABLENOW=no
;;
--service-path | -s)
SYSTEMDINSTALLPATH=$2
shift
;;
*)
error "Unknown flag $1"
exit 1
;;
esac
shift
done
cat <<EOT
${BLUE}${BOLD}
▄▄▄▄ ▄▄▄▄▄ ▄▄ ▄
█▀ ▀ █ ▀█ █▀▄ █
▀█▄▄▄ █▄▄▄█▀ █ █▄ █
▀█ █ █ █ █
▀▄▄▄█▀ █ █ ██
${GREEN}Safing Privacy Network
${RESET}
EOT
# prepare config
apply_defaults
ask_config
confirm_config
# Setup hub
ensure_install_dir
download_pmstart
download_updates
write_config_file "${INSTALLDIR}/config.json"
# setup systemd
setup_systemd
}
main "$@"