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searxng/utils/morty.sh

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#!/usr/bin/env bash
# -*- coding: utf-8; mode: sh indent-tabs-mode: nil -*-
# SPDX-License-Identifier: AGPL-3.0-or-later
# shellcheck source=utils/lib.sh
source "$(dirname "${BASH_SOURCE[0]}")/lib.sh"
source_dot_config
# ----------------------------------------------------------------------------
# config
# ----------------------------------------------------------------------------
PUBLIC_URL_PATH_MORTY="/morty"
PUBLIC_URL_MORTY="$(dirname "${PUBLIC_URL}")${PUBLIC_URL_PATH_MORTY}"
MORTY_LISTEN="${MORTY_LISTEN:-127.0.0.1:3000}"
# shellcheck disable=SC2034
MORTY_TIMEOUT=5
SERVICE_NAME="morty"
SERVICE_USER="${SERVICE_USER:-${SERVICE_NAME}}"
SERVICE_HOME_BASE="${SERVICE_HOME_BASE:-/usr/local}"
SERVICE_HOME="${SERVICE_HOME_BASE}/${SERVICE_USER}"
SERVICE_SYSTEMD_UNIT="${SYSTEMD_UNITS}/${SERVICE_NAME}.service"
# shellcheck disable=SC2034
SERVICE_GROUP="${SERVICE_USER}"
# shellcheck disable=SC2034
SERVICE_ENV_DEBUG=false
GO_ENV="${SERVICE_HOME}/.go_env"
GO_PKG_URL="https://dl.google.com/go/go1.13.5.linux-amd64.tar.gz"
GO_TAR=$(basename "$GO_PKG_URL")
# shellcheck disable=SC2034
CONFIG_FILES=()
# Apache Settings
APACHE_MORTY_SITE="morty.conf"
# ----------------------------------------------------------------------------
usage() {
# ----------------------------------------------------------------------------
# shellcheck disable=SC1117
cat <<EOF
usage::
$(basename "$0") shell
$(basename "$0") install [all|user]
$(basename "$0") update [morty]
$(basename "$0") remove [all]
$(basename "$0") activate [service]
$(basename "$0") deactivate [service]
$(basename "$0") inspect [service]
$(basename "$0") option [debug-on|debug-off]
$(basename "$0") apache [install|remove]
$(basename "$0") info [searx]
shell
start interactive shell from user ${SERVICE_USER}
install / remove
all: complete setup of morty service
user: add/remove service user '$SERVICE_USER' ($SERVICE_HOME)
update morty
Update morty installation ($SERVICE_HOME)
activate service
activate and start service daemon (systemd unit)
deactivate service
stop and deactivate service daemon (systemd unit)
inspect service
show service status and log
option
set one of the available options
apache : ${PUBLIC_URL_MORTY}
:install: apache site with a reverse proxy (ProxyPass)
:remove: apache site ${APACHE_MORTY_SITE}
If needed, set the environment variable MORTY_LISTEN in the
${DOT_CONFIG#"$REPO_ROOT/"} file::
MORTY_LISTEN : ${MORTY_LISTEN}
SERVICE_USER : ${SERVICE_USER}
EOF
info_searx
[[ -n ${1} ]] && err_msg "$1"
}
info_searx() {
# shellcheck disable=SC1117
cat <<EOF
To activate morty in searx, add result_proxy to your settings.yml::
result_proxy:
url : ${PUBLIC_URL_MORTY}/
further read: ${DOCS_URL}/admin/morty.html
EOF
}
main() {
rst_title "$SERVICE_NAME" part
required_commands \
sudo install git wget curl \
|| exit
local _usage="ERROR: unknown or missing $1 command $2"
case $1 in
--source-only) ;;
-h|--help) usage; exit 0;;
shell)
sudo_or_exit
interactive_shell "${SERVICE_USER}"
;;
inspect)
case $2 in
service)
sudo_or_exit
inspect_service
;;
*) usage "$_usage"; exit 42;;
esac ;;
install)
sudo_or_exit
case $2 in
all) install_all ;;
user) assert_user ;;
*) usage "$_usage"; exit 42;;
esac ;;
update)
sudo_or_exit
case $2 in
morty) update_morty ;;
*) usage "$_usage"; exit 42;;
esac ;;
remove)
sudo_or_exit
case $2 in
all) remove_all;;
user) drop_service_account "${SERVICE_USER}" ;;
*) usage "$_usage"; exit 42;;
esac ;;
activate)
sudo_or_exit
case $2 in
service) systemd_activate_service "${SERVICE_NAME}" ;;
*) usage "$_usage"; exit 42;;
esac ;;
deactivate)
sudo_or_exit
case $2 in
service) systemd_deactivate_service "${SERVICE_NAME}" ;;
*) usage "$_usage"; exit 42;;
esac ;;
apache)
sudo_or_exit
case $2 in
install) install_apache_site ;;
remove) remove_apache_site ;;
*) usage "$_usage"; exit 42;;
esac ;;
info)
case $2 in
searx) info_searx ;;
*) usage "$_usage"; exit 42;;
esac ;;
option)
sudo_or_exit
case $2 in
debug-on) enable_debug ;;
debug-off) disable_debug ;;
*) usage "$_usage"; exit 42;;
esac ;;
*) usage "ERROR: unknown or missing command $1"; exit 42;;
esac
}
install_all() {
rst_title "Install $SERVICE_NAME (service)"
assert_user
wait_key
install_go "${GO_PKG_URL}" "${GO_TAR}" "${SERVICE_USER}"
wait_key
install_morty
wait_key
systemd_install_service "${SERVICE_NAME}" "${SERVICE_SYSTEMD_UNIT}"
wait_key
info_searx
if ! service_is_available "http://${MORTY_LISTEN}" ; then
err_msg "Morty does not listening on: http://${MORTY_LISTEN}"
fi
if apache_is_installed; then
info_msg "Apache is installed on this host."
if ask_yn "Do you want to install a reverse proxy (ProxyPass)" Yn; then
install_apache_site
fi
fi
if ask_yn "Do you want to inspect the installation?" Yn; then
inspect_service
fi
}
remove_all() {
rst_title "De-Install $SERVICE_NAME (service)"
rst_para "\
It goes without saying that this script can only be used to remove
installations that were installed with this script."
if systemd_remove_service "${SERVICE_NAME}" "${SERVICE_SYSTEMD_UNIT}"; then
drop_service_account "${SERVICE_USER}"
fi
}
assert_user() {
rst_title "user $SERVICE_USER" section
echo
tee_stderr 1 <<EOF | bash | prefix_stdout
useradd --shell /bin/bash --system \
--home-dir "$SERVICE_HOME" \
--comment 'Web content sanitizer proxy' $SERVICE_USER
mkdir "$SERVICE_HOME"
chown -R "$SERVICE_GROUP:$SERVICE_GROUP" "$SERVICE_HOME"
groups $SERVICE_USER
EOF
SERVICE_HOME="$(sudo -i -u "$SERVICE_USER" echo \$HOME)"
export SERVICE_HOME
echo "export SERVICE_HOME=$SERVICE_HOME"
cat > "$GO_ENV" <<EOF
export GOPATH=\$HOME/go-apps
export PATH=\$PATH:\$HOME/local/go/bin:\$GOPATH/bin
EOF
echo "Environment $GO_ENV has been setup."
tee_stderr <<EOF | sudo -i -u "$SERVICE_USER"
grep -qFs -- 'source $GO_ENV' ~/.profile || echo 'source $GO_ENV' >> ~/.profile
EOF
}
morty_is_installed() {
[[ -f $SERVICE_HOME/go-apps/bin/morty ]]
}
_svcpr=" |${SERVICE_USER}| "
install_morty() {
rst_title "Install morty in user's ~/go-apps" section
echo
tee_stderr <<EOF | sudo -i -u "$SERVICE_USER" 2>&1 | prefix_stdout "$_svcpr"
go get -v -u github.com/asciimoo/morty
EOF
tee_stderr <<EOF | sudo -i -u "$SERVICE_USER" 2>&1 | prefix_stdout "$_svcpr"
cd \$GOPATH/src/github.com/asciimoo/morty
go test
go test -benchmem -bench .
EOF
}
update_morty() {
rst_title "Update morty" section
echo
tee_stderr <<EOF | sudo -i -u "$SERVICE_USER" 2>&1 | prefix_stdout "$_svcpr"
go get -v -u github.com/asciimoo/morty
EOF
tee_stderr <<EOF | sudo -i -u "$SERVICE_USER" 2>&1 | prefix_stdout "$_svcpr"
cd \$GOPATH/src/github.com/asciimoo/morty
go test
go test -benchmem -bench .
EOF
}
set_service_env_debug() {
# usage: set_service_env_debug [false|true]
# shellcheck disable=SC2034
local SERVICE_ENV_DEBUG="${1:-false}"
if systemd_remove_service "${SERVICE_NAME}" "${SERVICE_SYSTEMD_UNIT}"; then
systemd_install_service "${SERVICE_NAME}" "${SERVICE_SYSTEMD_UNIT}"
fi
}
inspect_service() {
rst_title "service status & log"
cat <<EOF
sourced ${DOT_CONFIG#"$REPO_ROOT/"} :
MORTY_LISTEN : ${MORTY_LISTEN}
EOF
if service_account_is_available "$SERVICE_USER"; then
info_msg "service account $SERVICE_USER available."
else
err_msg "service account $SERVICE_USER not available!"
fi
if go_is_available "$SERVICE_USER"; then
info_msg "~$SERVICE_USER: go is installed"
else
err_msg "~$SERVICE_USER: go is not installed"
fi
if morty_is_installed; then
info_msg "~$SERVICE_USER: morty app is installed"
else
err_msg "~$SERVICE_USER: morty app is not installed!"
fi
if ! service_is_available "http://${MORTY_LISTEN}" ; then
err_msg "Morty does not listening on: http://${MORTY_LISTEN}"
echo -e "${_Green}stop with [${_BCyan}CTRL-C${_Green}] or .."
wait_key
fi
local _debug_on
if ask_yn "Enable filtron debug mode?"; then
enable_debug
_debug_on=1
fi
echo
systemctl --no-pager -l status "${SERVICE_NAME}"
echo
info_msg "morty URL --> http://${MORTY_LISTEN}"
info_msg "public URL --> ${PUBLIC_URL_MORTY}"
# shellcheck disable=SC2059
printf "// use ${_BCyan}CTRL-C${_creset} to stop monitoring the log"
read -r -s -n1 -t 2
echo
while true; do
trap break 2
journalctl -f -u "${SERVICE_NAME}"
done
if [[ $_debug_on == 1 ]]; then
FORCE_SELECTION=Y disable_debug
fi
return 0
}
enable_debug() {
warn_msg "Do not enable debug in production enviroments!!"
info_msg "Enabling debug option needs to reinstall systemd service!"
set_service_env_debug true
}
disable_debug() {
info_msg "Disabling debug option needs to reinstall systemd service!"
set_service_env_debug false
}
install_apache_site() {
rst_title "Install Apache site $APACHE_MORTY_SITE"
rst_para "\
This installs a reverse proxy (ProxyPass) into apache site (${APACHE_MORTY_SITE})"
! apache_is_installed && err_msg "Apache is not installed."
if ! ask_yn "Do you really want to continue?"; then
return
fi
a2enmod headers
a2enmod proxy
a2enmod proxy_http
echo
apache_install_site "${APACHE_MORTY_SITE}"
info_msg "testing public url .."
if ! service_is_available "${PUBLIC_URL_MORTY}"; then
err_msg "Public service at ${PUBLIC_URL_MORTY} is not available!"
fi
}
remove_apache_site() {
rst_title "Remove Apache site $APACHE_MORTY_SITE"
rst_para "\
This removes apache site ${APACHE_MORTY_SITE}."
! apache_is_installed && err_msg "Apache is not installed."
if ! ask_yn "Do you really want to continue?"; then
return
fi
apache_remove_site "$APACHE_MORTY_SITE"
}
# ----------------------------------------------------------------------------
main "$@"
# ----------------------------------------------------------------------------
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