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searxngRebrandZaclys/utils/searx.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 disable=SC2001
# shellcheck source=utils/lib.sh
source "$(dirname "${BASH_SOURCE[0]}")/lib.sh"
source_dot_config
# ----------------------------------------------------------------------------
# config
# ----------------------------------------------------------------------------
SEARX_INTERNAL_URL="${SEARX_INTERNAL_URL:-127.0.0.1:8888}"
SEARX_URL_PATH="${SEARX_URL_PATH:-$(echo "${PUBLIC_URL}" \
| sed -e 's,^.*://[^/]*\(/.*\),\1,g')}"
[[ "${SEARX_URL_PATH}" == "${PUBLIC_URL}" ]] && SEARX_URL_PATH=/
SEARX_INSTANCE_NAME="${SEARX_INSTANCE_NAME:-searx@$(echo "$PUBLIC_URL" \
| sed -e 's,^.*://\([^\:/]*\).*,\1,g') }"
SERVICE_NAME="searx"
SERVICE_USER="${SERVICE_USER:-${SERVICE_NAME}}"
SERVICE_HOME_BASE="${SERVICE_HOME_BASE:-/usr/local}"
SERVICE_HOME="${SERVICE_HOME_BASE}/${SERVICE_USER}"
# shellcheck disable=SC2034
SERVICE_GROUP="${SERVICE_USER}"
SEARX_GIT_URL="${SEARX_GIT_URL:-https://github.com/asciimoo/searx.git}"
SEARX_GIT_BRANCH="${SEARX_GIT_BRANCH:-master}"
SEARX_PYENV="${SERVICE_HOME}/searx-pyenv"
SEARX_SRC="${SERVICE_HOME}/searx-src"
SEARX_SETTINGS_PATH="/etc/searx/settings.yml"
SEARX_UWSGI_APP="searx.ini"
# shellcheck disable=SC2034
SEARX_UWSGI_SOCKET="/run/uwsgi/app/searx/socket"
case $DIST_ID in
ubuntu|debian) # apt packages
SEARX_PACKAGES="\
python3-dev python3-babel python3-venv \
uwsgi uwsgi-plugin-python3 \
git build-essential libxslt-dev zlib1g-dev libffi-dev libssl-dev "
;;
arch) # pacman packages
SEARX_PACKAGES="\
python python-pip python-lxml python-babel \
uwsgi uwsgi-plugin-python \
git base-devel libxml2 "
;;
fedora) # dnf packages
SEARX_PACKAGES="\
python python-pip python-lxml python-babel \
uwsgi uwsgi-plugin-python3 \
git @development-tools libxml2 "
;;
esac
# Apache Settings
APACHE_APT_PACKAGES="\
libapache2-mod-uwsgi \
"
APACHE_SEARX_SITE="searx.conf"
# shellcheck disable=SC2034
CONFIG_FILES=(
"${uWSGI_APPS_AVAILABLE}/${SEARX_UWSGI_APP}"
)
# shellcheck disable=SC2034
CONFIG_BACKUP_ENCRYPTED=(
"${SEARX_SETTINGS_PATH}"
)
# ----------------------------------------------------------------------------
usage() {
# ----------------------------------------------------------------------------
# shellcheck disable=SC1117
cat <<EOF
usage::
$(basename "$0") shell
$(basename "$0") install [all|user|searx-src|pyenv|apache]
$(basename "$0") update [searx]
$(basename "$0") remove [all|user|pyenv|searx-src]
$(basename "$0") activate [service]
$(basename "$0") deactivate [service]
$(basename "$0") inspect [service]
$(basename "$0") option [debug-on|debug-off]
$(basename "$0") apache [install|remove]
shell
start interactive shell from user ${SERVICE_USER}
install / remove
:all: complete (de-) installation of searx service
:user: add/remove service user '$SERVICE_USER' ($SERVICE_HOME)
:searx-src: clone $SEARX_GIT_URL
:pyenv: create/remove virtualenv (python) in $SEARX_PYENV
:settings: reinstall settings from ${REPO_ROOT}/searx/settings.yml
update searx
Update searx installation ($SERVICE_HOME)
activate service
activate and start service daemon (systemd unit)
deactivate service
stop and deactivate service daemon (systemd unit)
inspect service
run some small tests and inspect service's status and log
option
set one of the available options
apache
:install: apache site with the searx uwsgi app
:remove: apache site ${APACHE_FILTRON_SITE}
searx settings: ${SEARX_SETTINGS_PATH}
If needed, set PUBLIC_URL of your WEB service in the '${DOT_CONFIG#"$REPO_ROOT/"}' file::
PUBLIC_URL : ${PUBLIC_URL}
PUBLIC_HOST : ${PUBLIC_HOST}
SEARX_INSTANCE_NAME : ${SEARX_INSTANCE_NAME}
SERVICE_USER : ${SERVICE_USER}
EOF
[[ -n ${1} ]] && err_msg "$1"
}
main() {
rst_title "$SEARX_INSTANCE_NAME" part
required_commands \
sudo systemctl install git wget curl \
|| exit
local _usage="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 $2 in
all) install_all ;;
user) assert_user ;;
pyenv) create_pyenv ;;
searx-src) clone_searx ;;
settings) install_settings ;;
*) usage "$_usage"; exit 42;;
esac ;;
update)
sudo_or_exit
case $2 in
searx) update_searx;;
*) usage "$_usage"; exit 42;;
esac ;;
remove)
sudo_or_exit
case $2 in
all) remove_all;;
user) drop_service_account "${SERVICE_USER}";;
pyenv) remove_pyenv ;;
searx-src) remove_searx ;;
*) usage "$_usage"; exit 42;;
esac ;;
activate)
sudo_or_exit
case $2 in
service)
activate_service ;;
*) usage "$_usage"; exit 42;;
esac ;;
deactivate)
sudo_or_exit
case $2 in
service) deactivate_service ;;
*) usage "$_usage"; exit 42;;
esac ;;
option)
sudo_or_exit
case $2 in
debug-on) echo; enable_debug ;;
debug-off) echo; disable_debug ;;
*) usage "$_usage"; exit 42;;
esac ;;
apache)
sudo_or_exit
case $2 in
install) install_apache_site ;;
remove) remove_apache_site ;;
*) usage "$_usage"; exit 42;;
esac ;;
*) usage "unknown or missing command $1"; exit 42;;
esac
}
_service_prefix=" |$SERVICE_USER| "
install_all() {
rst_title "Install $SEARX_INSTANCE_NAME (service)"
pkg_install "$SEARX_PACKAGES"
wait_key
assert_user
wait_key
clone_searx
wait_key
create_pyenv
wait_key
install_settings
wait_key
test_local_searx
wait_key
install_searx_uwsgi
if ! service_is_available "http://$SEARX_INTERNAL_URL"; then
err_msg "URL http://$SEARX_INTERNAL_URL not available, check searx & uwsgi setup!"
fi
if ask_yn "Do you want to inspect the installation?" Yn; then
inspect_service
fi
}
update_searx() {
rst_title "Update searx instance"
echo
tee_stderr 0.3 <<EOF | sudo -H -u "${SERVICE_USER}" -i 2>&1 | prefix_stdout "$_service_prefix"
cd ${SEARX_SRC}
git checkout -B "$SEARX_GIT_BRANCH"
git pull
${SEARX_SRC}/manage.sh update_packages
EOF
install_settings
uWSGI_restart "$SEARX_UWSGI_APP"
}
remove_all() {
rst_title "De-Install $SEARX_INSTANCE_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 ! ask_yn "Do you really want to deinstall $SEARX_INSTANCE_NAME?"; then
return
fi
remove_searx_uwsgi
drop_service_account "${SERVICE_USER}"
remove_settings
wait_key
if service_is_available "${PUBLIC_URL}"; then
MSG="** Don't forgett to remove your public site! (${PUBLIC_URL}) **" wait_key 10
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 'Privacy-respecting metasearch engine' $SERVICE_USER
mkdir "$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"
}
clone_is_available() {
[[ -f "$SEARX_SRC/.git/config" ]]
}
# shellcheck disable=SC2164
clone_searx() {
rst_title "Clone searx sources" section
echo
SERVICE_HOME="$(sudo -i -u "$SERVICE_USER" echo \$HOME 2>/dev/null)"
if [[ ! "${SERVICE_HOME}" ]]; then
err_msg "to clone searx sources, user $SERVICE_USER hast to be created first"
return 42
fi
export SERVICE_HOME
git_clone "$REPO_ROOT" "$SEARX_SRC" \
"$SEARX_GIT_BRANCH" "$SERVICE_USER"
pushd "${SEARX_SRC}" > /dev/null
tee_stderr 0.1 <<EOF | sudo -H -u "${SERVICE_USER}" -i 2>&1 | prefix_stdout "$_service_prefix"
cd "${SEARX_SRC}"
git remote set-url origin ${SEARX_GIT_URL}
git config user.email "$ADMIN_EMAIL"
git config user.name "$ADMIN_NAME"
git config --list
EOF
popd > /dev/null
}
install_settings() {
rst_title "${SEARX_SETTINGS_PATH}" section
if ! clone_is_available; then
err_msg "you have to install searx first"
exit 42
fi
mkdir -p "$(dirname ${SEARX_SETTINGS_PATH})"
if [[ ! -f ${SEARX_SETTINGS_PATH} ]]; then
info_msg "install settings ${REPO_ROOT}/searx/settings.yml"
info_msg " --> ${SEARX_SETTINGS_PATH}"
cp "${REPO_ROOT}/searx/settings.yml" "${SEARX_SETTINGS_PATH}"
configure_searx
return
fi
rst_para "Diff between origin's setting file (-) and current (+):"
echo
$DIFF_CMD "${SEARX_SRC}/searx/settings.yml" "${SEARX_SETTINGS_PATH}"
local action
choose_one action "What should happen to the settings file? " \
"keep new configuration" \
"start interactiv shell"
case $action in
"keep new configuration")
info_msg "continue using new settings file"
;;
"start interactiv shell")
echo -e "// exit with [${_BCyan}CTRL-D${_creset}]"
sudo -H -i
rst_para 'Diff between new setting file (-) and current (+):'
echo
$DIFF_CMD "${SEARX_SRC}/searx/settings.yml" "${SEARX_SETTINGS_PATH}"
wait_key
;;
esac
}
remove_settings() {
rst_title "remove searx settings" section
echo
info_msg "delete ${SEARX_SETTINGS_PATH}"
rm -f "${SEARX_SETTINGS_PATH}"
}
remove_searx() {
rst_title "Drop searx sources" section
if ask_yn "Do you really want to drop searx sources ($SEARX_SRC)?"; then
rm -rf "$SEARX_SRC"
else
rst_para "Leave searx sources unchanged."
fi
}
pyenv_is_available() {
[[ -f "${SEARX_PYENV}/bin/activate" ]]
}
create_pyenv() {
rst_title "Create virtualenv (python)" section
echo
if [[ ! -f "${SEARX_SRC}/manage.sh" ]]; then
err_msg "to create pyenv for searx, searx has to be cloned first"
return 42
fi
info_msg "create pyenv in ${SEARX_PYENV}"
tee_stderr 0.1 <<EOF | sudo -H -u "${SERVICE_USER}" -i 2>&1 | prefix_stdout "$_service_prefix"
rm -rf "${SEARX_PYENV}"
python3 -m venv "${SEARX_PYENV}"
grep -qFs -- 'source ${SEARX_PYENV}/bin/activate' ~/.profile \
|| echo 'source ${SEARX_PYENV}/bin/activate' >> ~/.profile
EOF
info_msg "inspect python's virtual environment"
tee_stderr 0.1 <<EOF | sudo -H -u "${SERVICE_USER}" -i 2>&1 | prefix_stdout "$_service_prefix"
command -v python && python --version
EOF
wait_key
info_msg "install needed python packages"
tee_stderr 0.1 <<EOF | sudo -H -u "${SERVICE_USER}" -i 2>&1 | prefix_stdout "$_service_prefix"
${SEARX_SRC}/manage.sh update_packages
EOF
}
remove_pyenv() {
rst_title "Remove virtualenv (python)" section
if ! ask_yn "Do you really want to drop ${SEARX_PYENV} ?"; then
return
fi
info_msg "remove pyenv activation from ~/.profile"
tee_stderr 0.1 <<EOF | sudo -H -u "${SERVICE_USER}" -i 2>&1 | prefix_stdout "$_service_prefix"
grep -v 'source ${SEARX_PYENV}/bin/activate' ~/.profile > ~/.profile.##
mv ~/.profile.## ~/.profile
EOF
rm -rf "${SEARX_PYENV}"
}
configure_searx() {
rst_title "Configure searx" section
rst_para "Setup searx config located at $SEARX_SETTINGS_PATH"
echo
tee_stderr 0.1 <<EOF | sudo -H -i 2>&1 | prefix_stdout "$_service_prefix"
cd ${SEARX_SRC}
sed -i -e "s/ultrasecretkey/$(openssl rand -hex 16)/g" "$SEARX_SETTINGS_PATH"
sed -i -e "s/{instance_name}/${SEARX_INSTANCE_NAME}/g" "$SEARX_SETTINGS_PATH"
EOF
}
test_local_searx() {
rst_title "Testing searx instance localy" section
echo
if service_is_available "http://$SEARX_INTERNAL_URL" &>/dev/null; then
err_msg "URL/port http://$SEARX_INTERNAL_URL is already in use, you"
err_msg "should stop that service before starting local tests!"
if ! ask_yn "Continue with local tests?"; then
return
fi
fi
sed -i -e "s/debug : False/debug : True/g" "$SEARX_SETTINGS_PATH"
tee_stderr 0.1 <<EOF | sudo -H -u "${SERVICE_USER}" -i 2>&1 | prefix_stdout "$_service_prefix"
export SEARX_SETTINGS_PATH="${SEARX_SETTINGS_PATH}"
cd ${SEARX_SRC}
timeout 10 python3 searx/webapp.py &
sleep 3
curl --location --verbose --head --insecure $SEARX_INTERNAL_URL
EOF
sed -i -e "s/debug : True/debug : False/g" "$SEARX_SETTINGS_PATH"
}
install_searx_uwsgi() {
rst_title "Install searx's uWSGI app (searx.ini)" section
echo
uWSGI_install_app "$SEARX_UWSGI_APP"
}
remove_searx_uwsgi() {
rst_title "Remove searx's uWSGI app (searx.ini)" section
echo
uWSGI_remove_app "$SEARX_UWSGI_APP"
}
activate_service() {
rst_title "Activate $SEARX_INSTANCE_NAME (service)" section
echo
uWSGI_enable_app "$SEARX_UWSGI_APP"
uWSGI_restart "$SEARX_UWSGI_APP"
}
deactivate_service() {
rst_title "De-Activate $SEARX_INSTANCE_NAME (service)" section
echo
uWSGI_disable_app "$SEARX_UWSGI_APP"
uWSGI_restart "$SEARX_UWSGI_APP"
}
enable_debug() {
warn_msg "Do not enable debug in production enviroments!!"
info_msg "try to enable debug mode ..."
tee_stderr 0.1 <<EOF | sudo -H -i 2>&1 | prefix_stdout "$_service_prefix"
cd ${SEARX_SRC}
sed -i -e "s/debug : False/debug : True/g" "$SEARX_SETTINGS_PATH"
EOF
uWSGI_restart "$SEARX_UWSGI_APP"
}
disable_debug() {
info_msg "try to disable debug mode ..."
tee_stderr 0.1 <<EOF | sudo -H -i 2>&1 | prefix_stdout "$_service_prefix"
cd ${SEARX_SRC}
sed -i -e "s/debug : True/debug : False/g" "$SEARX_SETTINGS_PATH"
EOF
uWSGI_restart "$SEARX_UWSGI_APP"
}
inspect_service() {
rst_title "service status & log"
cat <<EOF
sourced ${DOT_CONFIG#"$REPO_ROOT/"} :
PUBLIC_URL : ${PUBLIC_URL}
PUBLIC_HOST : ${PUBLIC_HOST}
SEARX_URL_PATH : ${SEARX_URL_PATH}
SEARX_INSTANCE_NAME : ${SEARX_INSTANCE_NAME}
SEARX_INTERNAL_URL : ${SEARX_INTERNAL_URL}
EOF
apache_is_installed && info_msg "Apache is installed."
if service_account_is_available "$SERVICE_USER"; then
info_msg "Service account $SERVICE_USER exists."
else
err_msg "Service account $SERVICE_USER does not exists!"
fi
if pyenv_is_available; then
info_msg "~$SERVICE_USER: python environment is available."
else
err_msg "~$SERVICE_USER: python environment is not available!"
fi
if clone_is_available; then
info_msg "~$SERVICE_USER: Searx software is installed."
else
err_msg "~$SERVICE_USER: Missing searx software!"
fi
if uWSGI_app_enabled "$SEARX_UWSGI_APP"; then
info_msg "uWSGI app $SEARX_UWSGI_APP is enabled."
else
err_msg "uWSGI app $SEARX_UWSGI_APP not enabled!"
fi
uWSGI_app_available "$SEARX_UWSGI_APP" \
|| err_msg "uWSGI app $SEARX_UWSGI_APP not available!"
if ! service_is_available "http://${SEARX_INTERNAL_URL}"; then
err_msg "uWSGI app (service) at http://${SEARX_INTERNAL_URL} is not available!"
echo -e "${_Green}stop with [${_BCyan}CTRL-C${_Green}] or .."
wait_key
fi
if ! service_is_available "${PUBLIC_URL}"; then
warn_msg "Public service at ${PUBLIC_URL} is not available!"
fi
local _debug_on
if ask_yn "Enable searx debug mode?"; then
enable_debug
_debug_on=1
fi
echo
systemctl --no-pager -l status "${SERVICE_NAME}"
echo
info_msg "public URL --> ${PUBLIC_URL}"
info_msg "internal URL --> http://${SEARX_INTERNAL_URL}"
# 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}"
tail -f /var/log/uwsgi/app/searx.log
done
if [[ $_debug_on == 1 ]]; then
disable_debug
fi
return 0
}
install_apache_site() {
rst_title "Install Apache site $APACHE_SEARX_SITE"
rst_para "\
This installs the searx uwsgi app as apache site. If your server ist public to
the internet you should instead use a reverse proxy (filtron) to block
excessively bot queries."
! apache_is_installed && err_msg "Apache is not installed."
if ! ask_yn "Do you really want to install apache site for searx-uwsgi?"; then
return
fi
pkg_install "$APACHE_APT_PACKAGES"
a2enmod uwsgi
echo
apache_install_site --variant=uwsgi "${APACHE_SEARX_SITE}"
if ! service_is_available "${PUBLIC_URL}"; then
err_msg "Public service at ${PUBLIC_URL} is not available!"
fi
}
remove_apache_site() {
rst_title "Remove Apache site ${APACHE_SEARX_SITE}"
rst_para "\
This removes apache site ${APACHE_SEARX_SITE}."
! apache_is_installed && err_msg "Apache is not installed."
if ! ask_yn "Do you really want to continue?"; then
return
fi
apache_remove_site "${APACHE_SEARX_SITE}"
}
# ----------------------------------------------------------------------------
main "$@"
# ----------------------------------------------------------------------------
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