Files
kiauh/scripts/nginx.sh
2022-04-23 14:57:14 +02:00

318 lines
12 KiB
Bash

#!/bin/bash
#=======================================================================#
# Copyright (C) 2020 - 2022 Dominik Willner <th33xitus@gmail.com> #
# #
# This file is part of KIAUH - Klipper Installation And Update Helper #
# https://github.com/th33xitus/kiauh #
# #
# This file may be distributed under the terms of the GNU GPLv3 license #
#=======================================================================#
set -e
### global variables
NGINX_SA="/etc/nginx/sites-available"
NGINX_SE="/etc/nginx/sites-enabled"
NGINX_CONFD="/etc/nginx/conf.d"
#===================================================#
#=================== REMOVE NGINX ==================#
#===================================================#
function remove_nginx(){
if [ -f "${SYSTEMD}/nginx.service" ]; then
status_msg "Stopping Nginx service ..."
sudo systemctl stop nginx && sudo systemctl disable nginx
ok_msg "Service stopped and disabled!"
status_msg "Purging Nginx from system ..."
sudo apt-get purge nginx nginx-common -y
sudo update-rc.d -f nginx remove
print_confirm "Nginx successfully removed!"
else
print_error "Looks like Nginx was already removed!\n Skipping..."
fi
}
#===================================================#
#===================== HELPERS =====================#
#===================================================#
function set_upstream_nginx_cfg(){
local current_date
current_date=$(get_date)
### backup existing nginx configs
[ ! -d "${BACKUP_DIR}/nginx_cfg" ] && mkdir -p "${BACKUP_DIR}/nginx_cfg"
[ -f "${NGINX_CONFD}/upstreams.conf" ] && sudo mv "${NGINX_CONFD}/upstreams.conf" "${BACKUP_DIR}/nginx_cfg/${current_date}_upstreams.conf"
[ -f "${NGINX_CONFD}/common_vars.conf" ] && sudo mv "${NGINX_CONFD}/common_vars.conf" "${BACKUP_DIR}/nginx_cfg/${current_date}_common_vars.conf"
### transfer ownership of backed up files from root to ${USER}
local files
files=$(find "${BACKUP_DIR}/nginx_cfg")
for file in ${files}; do
if [ "$(stat -c "%U" "${file}" )" != "${USER}" ]; then
log_info "chown for user: ${USER} on file: ${file}"
sudo chown "${USER}" "${file}"
fi
done
### copy nginx configs to target destination
if [ ! -f "${NGINX_CONFD}/upstreams.conf" ]; then
sudo cp "${SRCDIR}/kiauh/resources/upstreams.conf" "${NGINX_CONFD}"
fi
if [ ! -f "${NGINX_CONFD}/common_vars.conf" ]; then
sudo cp "${SRCDIR}/kiauh/resources/common_vars.conf" "${NGINX_CONFD}"
fi
}
function symlink_webui_nginx_log(){
local path="${HOME}/klipper_logs"
local access_log="/var/log/nginx/${1}-access.log"
local error_log="/var/log/nginx/${1}-error.log"
[ ! -d "${path}" ] && mkdir -p "${path}"
if [ -f "${access_log}" ] && [ ! -L "${path}/${1}-access.log" ]; then
status_msg "Creating symlink for ${access_log} ..."
ln -s "${access_log}" "${path}"
ok_msg "OK!"
fi
if [ -f "${error_log}" ] && [ ! -L "${path}/${1}-error.log" ]; then
status_msg "Creating symlink for ${error_log} ..."
ln -s "${error_log}" "${path}"
ok_msg "OK!"
fi
}
function match_nginx_configs(){
local cfg_updated="false"
### reinstall nginx configs if the amount of upstreams don't match anymore
read_kiauh_ini "${FUNCNAME[0]}"
mainsail_nginx_cfg="/etc/nginx/sites-available/mainsail"
fluidd_nginx_cfg="/etc/nginx/sites-available/fluidd"
upstreams_webcams=$(grep -E "mjpgstreamer" /etc/nginx/conf.d/upstreams.conf | wc -l)
status_msg "Checking validity of NGINX configurations ..."
if [ -e "${mainsail_nginx_cfg}" ]; then
mainsail_webcams=$(grep -E "mjpgstreamer" "${mainsail_nginx_cfg}" | wc -l)
fi
if [ -e "${fluidd_nginx_cfg}" ]; then
fluidd_webcams=$(grep -E "mjpgstreamer" "${fluidd_nginx_cfg}" | wc -l)
fi
### check for outdated upstreams.conf
if [[ "${upstreams_webcams}" -lt "${mainsail_webcams}" ]] || [[ "${upstreams_webcams}" -lt "${fluidd_webcams}" ]]; then
status_msg "Outdated upstreams.conf found! Updating ..."
sudo rm -f "${NGINX_CONFD}/upstreams.conf"
sudo rm -f "${NGINX_CONFD}/common_vars.conf"
set_upstream_nginx_cfg
cfg_updated="true"
fi
### check for outdated mainsail config
if [ -e "${mainsail_nginx_cfg}" ]; then
if [[ "${upstreams_webcams}" -gt "${mainsail_webcams}" ]]; then
status_msg "Outdated Mainsail config found! Updating ..."
sudo rm -f "${mainsail_nginx_cfg}"
sudo cp "${SRCDIR}/kiauh/resources/klipper_webui_nginx.cfg" "${mainsail_nginx_cfg}"
sudo sed -i "s/<<UI>>/mainsail/g" "${mainsail_nginx_cfg}"
sudo sed -i "/root/s/pi/${USER}/" "${mainsail_nginx_cfg}"
sudo sed -i "s/listen\s[0-9]*;/listen ${mainsail_port};/" "${mainsail_nginx_cfg}"
sudo sed -i "s/listen\s\[\:*\]\:[0-9]*;/listen \[::\]\:${mainsail_port};/" "${mainsail_nginx_cfg}"
cfg_updated="true" && ok_msg "Done!"
fi
fi
### check for outdated fluidd config
if [ -e "${fluidd_nginx_cfg}" ]; then
if [[ "${upstreams_webcams}" -gt "${fluidd_webcams}" ]]; then
status_msg "Outdated Fluidd config found! Updating ..."
sudo rm -f "${fluidd_nginx_cfg}"
sudo cp "${SRCDIR}/kiauh/resources/klipper_webui_nginx.cfg" "${fluidd_nginx_cfg}"
sudo sed -i "s/<<UI>>/fluidd/g" "${fluidd_nginx_cfg}"
sudo sed -i "/root/s/pi/${USER}/" "${fluidd_nginx_cfg}"
sudo sed -i "s/listen\s[0-9]*;/listen ${fluidd_port};/" "${fluidd_nginx_cfg}"
sudo sed -i "s/listen\s\[\:*\]\:[0-9]*;/listen \[::\]\:${fluidd_port};/" "${fluidd_nginx_cfg}"
cfg_updated="true" && ok_msg "Done!"
fi
fi
### only restart nginx if configs were updated
[ "${cfg_updated}" == "true" ] && do_action_service "restart" "nginx"
}
function process_disruptive_services(){
#handle haproxy service
if [ "${DISABLE_HAPROXY}" = "true" ] || [ "${REMOVE_HAPROXY}" = "true" ]; then
if systemctl is-active haproxy -q; then
status_msg "Stopping haproxy service ..."
sudo systemctl stop haproxy && ok_msg "Service stopped!"
fi
### disable haproxy
if [ "${DISABLE_HAPROXY}" = "true" ]; then
status_msg "Disabling haproxy ..."
sudo systemctl disable haproxy && ok_msg "Haproxy service disabled!"
### remove haproxy
if [ "${REMOVE_HAPROXY}" = "true" ]; then
status_msg "Removing haproxy ..."
sudo apt-get remove haproxy -y && sudo update-rc.d -f haproxy remove && ok_msg "Haproxy removed!"
fi
fi
fi
### handle lighttpd service
if [ "${DISABLE_LIGHTTPD}" = "true" ] || [ "${REMOVE_LIGHTTPD}" = "true" ]; then
if systemctl is-active lighttpd -q; then
status_msg "Stopping lighttpd service ..."
sudo systemctl stop lighttpd && ok_msg "Service stopped!"
fi
### disable lighttpd
if [ "${DISABLE_LIGHTTPD}" = "true" ]; then
status_msg "Disabling lighttpd ..."
sudo systemctl disable lighttpd && ok_msg "Lighttpd service disabled!"
### remove lighttpd
if [ "${REMOVE_LIGHTTPD}" = "true" ]; then
status_msg "Removing lighttpd ..."
sudo apt-get remove lighttpd -y && sudo update-rc.d -f lighttpd remove && ok_msg "Lighttpd removed!"
fi
fi
fi
### handle apache2 service
if [ "${DISABLE_APACHE2}" = "true" ] || [ "${REMOVE_APACHE2}" = "true" ]; then
if systemctl is-active apache2 -q; then
status_msg "Stopping apache2 service ..."
sudo systemctl stop apache2 && ok_msg "Service stopped!"
fi
### disable lighttpd
if [ "${DISABLE_APACHE2}" = "true" ]; then
status_msg "Disabling lighttpd ..."
sudo systemctl disable apache2 && ok_msg "Apache2 service disabled!"
### remove lighttpd
if [ "${REMOVE_APACHE2}" = "true" ]; then
status_msg "Removing apache2 ..."
sudo apt-get remove apache2 -y && sudo update-rc.d -f apache2 remove && ok_msg "Apache2 removed!"
fi
fi
fi
}
function process_services_dialog(){
#notify user about haproxy or lighttpd services found and possible issues
if [ "${HAPROXY_FOUND}" = "true" ] || [ "${LIGHTTPD_FOUND}" = "true" ] || [ "${APACHE2_FOUND}" = "true" ]; then
while true; do
echo
top_border
echo -e "| ${red}Possibly disruptive/incompatible services found!${white} |"
hr
if [ "${HAPROXY_FOUND}" = "true" ]; then
echo -e "| ● haproxy |"
fi
if [ "${LIGHTTPD_FOUND}" = "true" ]; then
echo -e "| ● lighttpd |"
fi
if [ "${APACHE2_FOUND}" = "true" ]; then
echo -e "| ● apache2 |"
fi
hr
echo -e "| Having those packages installed can lead to unwanted |"
echo -e "| behaviour. It is recommend to remove those packages. |"
echo -e "| |"
echo -e "| 1) Remove packages (recommend) |"
echo -e "| 2) Disable only (may cause issues) |"
echo -e "| ${red}3) Skip this step (not recommended)${white} |"
bottom_border
read -p "${cyan}###### Please choose:${white} " action
case "${action}" in
1)
echo -e "###### > Remove packages"
REMOVE_HAPROXY="true"
REMOVE_LIGHTTPD="true"
REMOVE_APACHE2="true"
break;;
2)
echo -e "###### > Disable only"
DISABLE_HAPROXY="true"
DISABLE_LIGHTTPD="true"
DISABLE_APACHE2="true"
break;;
3)
echo -e "###### > Skip"
break;;
*)
print_unkown_cmd
print_msg && clear_msg;;
esac
done
fi
}
function set_nginx_cfg(){
if [ "${SET_NGINX_CFG}" = "true" ]; then
local cfg="${SRCDIR}/kiauh/resources/${1}"
#check for dependencies
local dep=(nginx)
dependency_check "${dep[@]}"
#execute operations
status_msg "Creating Nginx configuration for ${1} ..."
#copy content from resources to the respective nginx config file
cat "${SRCDIR}/kiauh/resources/klipper_webui_nginx.cfg" > "${cfg}"
##edit the nginx config file before moving it
sed -i "s/<<UI>>/${1}/g" "${cfg}"
if [ "${SET_LISTEN_PORT}" != "${DEFAULT_PORT}" ]; then
status_msg "Configuring port for $1 ..."
#set listen port ipv4
sed -i "s/listen\s[0-9]*;/listen ${SET_LISTEN_PORT};/" "${cfg}"
#set listen port ipv6
sed -i "s/listen\s\[\:*\]\:[0-9]*;/listen \[::\]\:${SET_LISTEN_PORT};/" "${cfg}"
fi
#set correct user
if [ "${1}" = "mainsail" ] || [ "${1}" = "fluidd" ]; then
sudo sed -i "/root/s/pi/${USER}/" "${cfg}"
fi
#moving the config file into correct directory
sudo mv "${cfg}" "/etc/nginx/sites-available/${1}"
ok_msg "Nginx configuration for $1 was set!"
if [ -n "${SET_LISTEN_PORT}" ]; then
ok_msg "${1} listening on port ${SET_LISTEN_PORT}!"
else
ok_msg "${1} listening on default port ${DEFAULT_PORT}!"
fi
#remove nginx default config
[ -e "/etc/nginx/sites-enabled/default" ] && sudo rm "/etc/nginx/sites-enabled/default"
#create symlink for own sites
[ ! -e "/etc/nginx/sites-enabled/${1}" ] && sudo ln -s "/etc/nginx/sites-available/${1}" "/etc/nginx/sites-enabled/"
do_action_service "restart" "nginx"
fi
}
function read_listen_port(){
LISTEN_PORT=$(grep listen "/etc/nginx/sites-enabled/${1}" | head -1 | sed 's/^\s*//' | cut -d" " -f2 | cut -d";" -f1)
}
function detect_enabled_sites(){
#check if there is another UI config already installed
#and reads the port they are listening on
if [ -e "/etc/nginx/sites-enabled/mainsail" ]; then
SITE_ENABLED="true" && MAINSAIL_ENABLED="true"
read_listen_port "mainsail"
MAINSAIL_PORT=${LISTEN_PORT}
#echo "debug: Mainsail listens on port: $MAINSAIL_PORT"
else
MAINSAIL_ENABLED="false"
fi
if [ -e /etc/nginx/sites-enabled/fluidd ]; then
SITE_ENABLED="true" && FLUIDD_ENABLED="true"
read_listen_port "fluidd"
FLUIDD_PORT=${LISTEN_PORT}
#echo "debug: Fluidd listens on port: $FLUIDD_PORT"
else
FLUIDD_ENABLED="false"
fi
if [ -e /etc/nginx/sites-enabled/octoprint ]; then
SITE_ENABLED="true" && OCTOPRINT_ENABLED="true"
read_listen_port "octoprint"
OCTOPRINT_PORT=${LISTEN_PORT}
#echo "debug: OctoPrint listens on port: $OCTOPRINT_PORT"
else
OCTOPRINT_ENABLED="false"
fi
}