justinhartman · August 13, 2024 15:29 · justinhartman · Feb 2, 2023 · jeff-kilbride · Jul 8, 2023
diff --git a/01_nginx-reload-post-hook.sh b/01_nginx-reload-post-hook.sh
 #!/usr/bin/env bash
 #
 # Certbot Nginx Reload
 #
 # Let's Encrypt Certbot post hook command for Nginx which checks the updated
 # configuration files and reloads the server if everything validates.
 #
 # Author   : Justin Hartman <[email protected]>
 # Version  : 1.0.1
 # License  : MIT <https://opensource.org/licenses/MIT>
 # Readme   : https://git.io/JtMvL
 # Copyright: Copyright (c) 2021 Justin Hartman <https://justinhartman.co>
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
 # in the Software without restriction, including without limitation the rights
 # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
 # The above copyright notice and this permission notice shall be included in all
 # copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.

 #######################################
 # Output coloured messages based on a
 # set of arguments.
 # Globals:
 #   None
 # Arguments:
 #   String  info, success, warning,
 #           danger, or none
 # Returns:
 #   String  printf styled message
 #######################################
 cprint() {
    if [ "$2" == "info" ]; then
        COLOR="96m"
    elif [ "$2" == "success" ]; then
        COLOR="92m"
    elif [ "$2" == "warning" ]; then
        COLOR="93m"
    elif [ "$2" == "danger" ]; then
        COLOR="91m"
    else #default color
        COLOR="0m"
    fi

    STARTCOLOR="\e[$COLOR"
    ENDCOLOR="\e[0m"

    printf "$STARTCOLOR%b$ENDCOLOR" "$1"
 }

 #######################################
 # Define log file variable and check to
 # see if an old file should be deleted.
 # Globals:
 #   None
 # Arguments:
 #   None
 # Returns:
 #   String  cprint method output
 #######################################
 logfile() {
    NGINX_RELOAD_LOG=/tmp/nginx_reload.log

    if [[ -f "$NGINX_RELOAD_LOG" ]]; then
        cprint "Removing old log file.\n" "warning"
        /bin/rm -f "$NGINX_RELOAD_LOG"
    fi
 }

 #######################################
 # Main script method to process the
 # application thread.
 # Globals:
 #   None
 # Arguments:
 #   None
 # Returns:
 #   String  cprint method outputs
 main() {
    # Cleanup and load log file.
    logfile

    # Check if the nginx config file is OK.
    nginx -t &>"$NGINX_RELOAD_LOG"

    if grep -q 'test failed' "$NGINX_RELOAD_LOG"; then
        cprint "Fail: Error with config file.\n" "danger"
        cprint "Aborting nginx restart.\n" "danger"
        cprint "Log file output:\n" "info"
        cat "$NGINX_RELOAD_LOG"
        exit 1
    elif grep -q 'test is successful' "$NGINX_RELOAD_LOG"; then
        cprint "Success: Reloading nginx server.\n" "success"
        systemctl reload nginx
    fi
 }

 # Load the main method.
 main
 # Exit gracefully.
 exit 0
diff --git a/02_README.md b/02_README.md
	#!/usr/bin/env bash
	#
	# Certbot Nginx Reload
	#
	# Let's Encrypt Certbot post hook command for Nginx which checks the updated
	# configuration files and reloads the server if everything validates.
	#
	# Author : Justin Hartman <[email protected]>
	# Version : 1.0.1
	# License : MIT <https://opensource.org/licenses/MIT>
	# Readme : https://git.io/JtMvL
	# Copyright: Copyright (c) 2021 Justin Hartman <https://justinhartman.co>
	#
	# Permission is hereby granted, free of charge, to any person obtaining a copy
	# of this software and associated documentation files (the "Software"), to deal
	# in the Software without restriction, including without limitation the rights
	# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	# copies of the Software, and to permit persons to whom the Software is
	# furnished to do so, subject to the following conditions:
	#
	# The above copyright notice and this permission notice shall be included in all
	# copies or substantial portions of the Software.
	#
	# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
	# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	# SOFTWARE.

	#######################################
	# Output coloured messages based on a
	# set of arguments.
	# Globals:
	# None
	# Arguments:
	# String info, success, warning,
	# danger, or none
	# Returns:
	# String printf styled message
	#######################################
	cprint() {
	if [ "$2" == "info" ]; then
	COLOR="96m"
	elif [ "$2" == "success" ]; then
	COLOR="92m"
	elif [ "$2" == "warning" ]; then
	COLOR="93m"
	elif [ "$2" == "danger" ]; then
	COLOR="91m"
	else #default color
	COLOR="0m"
	fi

	STARTCOLOR="\e[$COLOR"
	ENDCOLOR="\e[0m"

	printf "$STARTCOLOR%b$ENDCOLOR" "$1"
	}

	#######################################
	# Define log file variable and check to
	# see if an old file should be deleted.
	# Globals:
	# None
	# Arguments:
	# None
	# Returns:
	# String cprint method output
	#######################################
	logfile() {
	NGINX_RELOAD_LOG=/tmp/nginx_reload.log

	if [[ -f "$NGINX_RELOAD_LOG" ]]; then
	cprint "Removing old log file.\n" "warning"
	/bin/rm -f "$NGINX_RELOAD_LOG"
	fi
	}

	#######################################
	# Main script method to process the
	# application thread.
	# Globals:
	# None
	# Arguments:
	# None
	# Returns:
	# String cprint method outputs
	main() {
	# Cleanup and load log file.
	logfile

	# Check if the nginx config file is OK.
	nginx -t &>"$NGINX_RELOAD_LOG"

	if grep -q 'test failed' "$NGINX_RELOAD_LOG"; then
	cprint "Fail: Error with config file.\n" "danger"
	cprint "Aborting nginx restart.\n" "danger"
	cprint "Log file output:\n" "info"
	cat "$NGINX_RELOAD_LOG"
	exit 1
	elif grep -q 'test is successful' "$NGINX_RELOAD_LOG"; then
	cprint "Success: Reloading nginx server.\n" "success"
	systemctl reload nginx
	fi
	}

	# Load the main method.
	main
	# Exit gracefully.
	exit 0