pushover

#!/bin/bash

VERSION="1.2.3"
DIR_CONFIG="$HOME/.pushover"

USER=""
TOKEN=""
TITLE=""
MESSAGE=""
URL=""
URL_TITLE=""
DEVICE=""
SOUND=""
HTML=""
MONOSPACE=""
TIMESTAMP=""
PRIORITY="0"
RETRY="60"
EXPIRE="3600"

config() {
	LABEL_USER_KEY="User Key"
	LABEL_APP_TOKEN="API Token"
	echo -ne '\033[0;37m\n'
	if [ -n "${CONFIG}" ] && [ ${CONFIG} == "rm" ]; then
		rm -rf ${DIR_CONFIG}
		echo -ne "Pushover CLI configuration deleted.\n\n"
		echo -ne '\033[0m'
		exit 0
	fi
	if [ -e ${DIR_CONFIG}/config ]; then
	    USER_KEY=$(awk -F'"' '/^USER_KEY=/ {print $2}' ${DIR_CONFIG}/config)
	    APP_TOKEN=$(awk -F'"' '/^APP_TOKEN=/ {print $2}' ${DIR_CONFIG}/config)
	    if [ -z "${USER_KEY}" ]; then echo -ne "${LABEL_USER_KEY}: "; else echo -ne "${LABEL_USER_KEY} [****************${USER_KEY: -4}]: "; fi
	    read USER_KEY
	    if [ -z "${APP_TOKEN}" ]; then echo -ne "${LABEL_APP_TOKEN}: "; else echo -ne "${LABEL_APP_TOKEN} [****************${APP_TOKEN: -4}]: "; fi
	    read APP_TOKEN
	else
		echo -ne "${LABEL_USER_KEY}: "
		read USER_KEY
		echo -ne "${LABEL_APP_TOKEN}: "
		read APP_TOKEN
		if [ ! -d ${DIR_CONFIG} ]; then mkdir ${DIR_CONFIG}; fi
		if [ -e ${DIR_CONFIG}/config ]; then touch ${DIR_CONFIG}/config; fi
	fi
	cat <<EOF > ${DIR_CONFIG}/config
USER_KEY="${USER_KEY}"
APP_TOKEN="${APP_TOKEN}"
EOF
	chmod 600 ${DIR_CONFIG}/config
	echo -ne "\nPushover CLI configured successfully.\n\n"
	echo -ne '\033[0m'
}
upgrade() {
	DIR_TEMP="/tmp/pushover-cli"
	DIR_BIN="/usr/local/bin"
	BRANCH="${UPGRADE}"
	if [ "${BRANCH}" == "dev" ]; then BRANCH="develop"; else BRANCH="master"; fi
	echo -ne '\033[0;37m'
	echo -ne "\nDownloading latest version..."
	curl -s https://raw.githubusercontent.com/aaronfagan/pushover-cli/${BRANCH}/install.sh | bash -s ${BRANCH} upgrade > /dev/null 2>&1
	if [ $? == 0 ]; then
		echo -ne "done!"
		VERSION_OLD=${VERSION}
		VERSION_NEW=$(awk -F'"' '/^VERSION=/ {print $2}' ${DIR_TEMP}/pushover)
		if [ "${VERSION_OLD}" == "${VERSION_NEW}" ]; then
			echo -ne "\nPushover CLI is already the latest version (v${VERSION_OLD}).\n\n"
		else
			echo -ne "\nPushover CLI upgraded successfully (v${VERSION_OLD} => v${VERSION_NEW}).\n\n"
		fi
		echo -ne '\033[0m'
		rm -rf ${DIR_TEMP}
		exit 0
	else
		echo -ne "failed!"
		echo -ne "\nPushover CLI upgrade failed.\n\n"
		echo -ne '\033[0m'
		rm -rf ${DIR_TEMP}
		exit 1
	fi
}
version() {
	echo -ne "\033[0;37m
Pushover CLI - v${VERSION} - https://github.com/aaronfagan/pushover-cli/
By Aaron Fagan - https://www.aaronfagan.ca/
\033[0m\n"
}
usage() {
	echo "
Usage:
	pushover [options]
Options:
	--user          Pushover user key. REQUIRED.
	--token         Pushover application API token. REQUIRED.
	--title         Notification title.
	--message       Notification message. If you are seeing errors, try wrapping your message in 'single quotes.' REQUIRED.
	--url           A supplementary URL to show with your message.
	--url-title     A title for your supplementary URL, otherwise just the URL is shown.
	--device        The target device(s) to send the notification to. Comma separated, no spaces. DEFAULT = All devices.
	--sound	        The notification sound to play upon delivery. More Info: https://pushover.net/api#sounds
	--html          Enabled HTML message. Set to 1 to enable. More Info: https://pushover.net/api#html
	--monospace     Enabled Monospace message. Set to 1 to enable. May not be used if --html is used, and vice versa.
	--timestamp     A Unix timestamp of your message's date and time to display to the user. DEFAULT = The time your message is received by the Pushover API.
	--priority      Message priority. More Info: https://pushover.net/api#priority. DEFAULT = $PRIORITY.
	--retry         How many seconds between retries. Only applies when --priority is set to 2 (emergency). DEFAULT = $RETRY.
	--expire        How many seconds until emergency notification retries will stop. Only applies when --priority is set to 2 (emergency). DEFAULT = $EXPIRE.
	--config        Configure global Pushover user key and application API token. Set to 'rm' to delete configuration files.
	--upgrade       Upgrade to the latest Pushover CLI version.'.
	--version, -v   Currently installed version of Pushover CLI.
	--quiet, -q     Silence all output.
	--help          Usage instructions.
Example:
	pushover \\
	--user YOUR_USER_KEY \\
	--token YOUR_APP_TOKEN \\
	--title \"Test Notification\" \\
	--message \"Here is the notification!\"
	"
}

while [[ $# -gt 0 ]]; do
	key="$1"
	case $key in
		--token)
			TOKEN="${2:-${TOKEN}}"
			shift
			shift
		;;
		--user)
			USER="${2:-${USER}}"
			shift
			shift
		;;
		--title)
			TITLE="${2:-$TITLE}"
			shift
			shift
		;;
		--message)
			MESSAGE="${2:-${MESSAGE}}"
			shift
			shift
		;;
		--url)
			URL="${2:-$URL}"
			shift
			shift
		;;
		--url-title)
			URL_TITLE="${2:-$URL_TITLE}"
			shift
			shift
		;;
		--device)
			DEVICE="${2:-$DEVICE}"
			shift
			shift
		;;
		--sound)
			SOUND="${2:-$SOUND}"
			shift
			shift
		;;
		--html)
			HTML="${2:-$HTML}"
			shift
			shift
		;;
		--monospace)
			MONOSPACE="${2:-$MONOSPACE}"
			shift
			shift
		;;
		--timestamp)
			TIMESTAMP="${2:-$TIMESTAMP}"
			shift
			shift
		;;
		--priority)
			PRIORITY="${2:-$PRIORITY}"
			shift
			shift
		;;
		--retry)
			RETRY="${2:-$RETRY}"
			shift
			shift
		;;
		--expire)
			EXPIRE="${2:-$EXPIRE}"
			shift
			shift
		;;
		--config)
			CONFIG="${2:-$CONFIG}"
			shift
			shift
			config
			exit 0
		;;
		--upgrade)
			UPGRADE="${2:-$UPGRADE}"
			shift
			shift
			upgrade
		;;
		-v | --version)
			shift
			version
			exit 0
		;;
		-q | --quiet)
			shift
			QUIET=TRUE
		;;
		--help)
			shift
			usage
			exit 0
		;;
		*) 
			INVALID+=("$1")
			shift
			echo -ne "\033[0;31m\nERROR:\033[0;37m Invalid arguement: ${INVALID}\033[0m\n"
			usage
			exit 1
		;;
	esac
done

if [ -z "${USER}" ] || [ -z "${TOKEN}" ] || [ -z "${MESSAGE}" ]; then
	if [ -z "${QUIET}" ]; then
		echo -ne '\n'
	fi
	if [ -z "${USER}" ]; then 
		if [ -e ${DIR_CONFIG}/config ]; then
		    USER=$(awk -F'"' '/^USER_KEY=/ {print $2}' ${DIR_CONFIG}/config)
		    if [ -z "${USER}" ]; then
		    	if [ -z "${QUIET}" ]; then
		    		echo -ne "\033[0;31mERROR:\033[0;37m --user arguement is required.\033[0m\n"
		    	fi
		    fi
		else
			if [ -z "${QUIET}" ]; then
				echo -ne "\033[0;31mERROR:\033[0;37m --user arguement is required.\033[0m\n"
			fi
		fi
	fi
	if [ -z "${TOKEN}" ]; then
		if [ -e ${DIR_CONFIG}/config ]; then
		    TOKEN=$(awk -F'"' '/^APP_TOKEN=/ {print $2}' ${DIR_CONFIG}/config)
		    if [ -z "${TOKEN}" ]; then
		    	if [ -z "${QUIET}" ]; then
		    		echo -ne "\033[0;31mERROR:\033[0;37m --token arguement is required.\033[0m\n"
		    	fi
		    fi
		else
			if [ -z "${QUIET}" ]; then
				echo -ne "\033[0;31mERROR:\033[0;37m --token arguement is required.\033[0m\n"
			fi
		fi
	fi
	if [ -z "${MESSAGE}" ]; then
		if [ -z "${QUIET}" ]; then
			echo -ne "\033[0;31mERROR:\033[0;37m --message arguement is required.\033[0m\n"
		fi
	fi
fi

if [ -z "${USER}" ] || [ -z "${TOKEN}" ] || [ -z "${MESSAGE}" ]; then
	if [ -z "${QUIET}" ]; then
		usage
	fi
	exit 1
else
	if [ -z "${QUIET}" ]; then
		echo -ne '\033[0;37m'
		echo -ne "> Sending notification..."
	fi
	CURL=$(/usr/bin/curl -s \
		-F "token=${TOKEN}" \
		-F "user=${USER}" \
		-F "title=${TITLE}" \
		-F "message=$(echo -e ${MESSAGE})" \
		-F "url=${URL}" \
		-F "url_title=${URL_TITLE}" \
		-F "device=${DEVICE}" \
		-F "sound=${SOUND}" \
		-F "html=${HTML}" \
		-F "monospace=${MONOSPACE}" \
		-F "timestamp=${TIMESTAMP}" \
		-F "priority=${PRIORITY}" \
		-F "retry=${RETRY}" \
		-F "expire=${EXPIRE}" \
		https://api.pushover.net/1/messages.json)
	ERROR=$(echo ${CURL} | grep 'errors')
	if [ -z "${ERROR}" ]; then
		if [ -z "${QUIET}" ]; then
			echo -ne "success!\n\n";
			echo -ne '\033[0m'
		fi
		exit 0
	else
		if [ -z "${QUIET}" ]; then
			echo -ne "failed!\n\n";
			echo -ne "\033[0;31mERROR:\033[0;37m ${ERROR}.\033[0m\n\n"
			echo -ne '\033[0m'
		fi
		exit 1;
	fi
fi