pihole_ynh/scripts/change_url

#!/bin/bash

#=================================================
# GENERIC STARTING
#=================================================
# IMPORT GENERIC HELPERS
#=================================================

source _common.sh
source /usr/share/yunohost/helpers

#=================================================
# RETRIEVE ARGUMENTS
#=================================================

old_domain=$YNH_APP_OLD_DOMAIN
old_path=$YNH_APP_OLD_PATH

new_domain=$YNH_APP_NEW_DOMAIN
new_path=$YNH_APP_NEW_PATH

app=$YNH_APP_INSTANCE_NAME

#=================================================
# CHECK THE SYNTAX OF THE PATHS
#=================================================

test -n "$old_path" || old_path="/"
test -n "$new_path" || new_path="/"
new_path=$(ynh_normalize_url_path $new_path)
old_path=$(ynh_normalize_url_path $old_path)

#=================================================
# ACTIVATE MAINTENANCE MODE
#=================================================

path_url=$old_path
domain=$old_domain
ynh_maintenance_mode_ON

#=================================================
# CHECK WHICH PARTS SHOULD BE CHANGED
#=================================================

change_domain=0
if [ "$old_domain" != "$new_domain" ]
then
	change_domain=1
fi

change_path=0
if [ "$old_path" != "$new_path" ]
then
	change_path=1
fi

#=================================================
# MANAGE FAILURE OF THE SCRIPT
#=================================================

# Exit if an error occurs during the execution of the script
ynh_abort_if_errors

#=================================================
# STANDARD MODIFICATIONS
#=================================================
# MODIFY URL IN NGINX CONF
#=================================================

nginx_conf_path=/etc/nginx/conf.d/$old_domain.d/$app.conf

# Change the path in the nginx config file
if [ $change_path -eq 1 ]
then

	# Move from sub path to root
	if [ "$new_path" == "/" ]
	then
		ynh_replace_string "^ *rewrite.*\^$old_path" "#sub_path_only&" "$nginx_conf_path"
		ynh_replace_string "\(rewrite *\^\)$old_path\$ $old_path/*" "\1$new_path$ $new_path" "$nginx_conf_path"

	# Move to a sub path
	else
		ynh_replace_string "^#sub_path_only" "" "$nginx_conf_path"
		ynh_replace_string "\(rewrite *\^\)$old_path\$ $old_path/*" "\1$new_path$ $new_path/" "$nginx_conf_path"
	fi

	ynh_replace_string "location ${old_path%/}/" "location ${new_path%/}/" "$nginx_conf_path"
fi

# Change the domain for nginx
if [ $change_domain -eq 1 ]
then
	sudo mv $nginx_conf_path /etc/nginx/conf.d/$new_domain.d/$app.conf
fi

#=================================================
# GENERIC FINALISATION
#=================================================
# RELOAD NGINX
#=================================================

ynh_system_reload nginx

#=================================================
# DEACTIVE MAINTENANCE MODE
#=================================================

path_url=$old_path
domain=$old_domain
ynh_maintenance_mode_OFF